octave-nkf: libinterp/parse-tree/lex.ll annotate

annotate libinterp/parse-tree/lex.ll @ 16114:73a21ade0b6b

* lex.ll: Reorder function definitions.

author	John W. Eaton <jwe@octave.org>
date	Tue, 26 Feb 2013 02:52:48 -0500
parents	7c5e5e97a3bc
children	67f71e2a6190

rev	line source
1994 c2d20f365b84 [project @ 1996-03-03 01:19:32 by jwe] jwe parents: 1884 diff changeset	1 /*
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 14074 diff changeset	3 Copyright (C) 1993-2012 John W. Eaton
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	4
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	5 This file is part of Octave.
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	6
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	7 Octave is free software; you can redistribute it and/or modify it
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	8 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6547 diff changeset	9 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6547 diff changeset	10 option) any later version.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	11
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	12 Octave is distributed in the hope that it will be useful, but WITHOUT
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	15 for more details.
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	16
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	17 You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6547 diff changeset	18 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6547 diff changeset	19 <http://www.gnu.org/licenses/>.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	20
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	21 */
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	22
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	23 %option prefix = "octave_"
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	24
10019 7ad32bf759c3 lex.cc: Use %top block to include config.h John W. Eaton <jwe@octave.org> parents: 9794 diff changeset	25 %top {
7ad32bf759c3 lex.cc: Use %top block to include config.h John W. Eaton <jwe@octave.org> parents: 9794 diff changeset	26 #ifdef HAVE_CONFIG_H
7ad32bf759c3 lex.cc: Use %top block to include config.h John W. Eaton <jwe@octave.org> parents: 9794 diff changeset	27 #include <config.h>
7ad32bf759c3 lex.cc: Use %top block to include config.h John W. Eaton <jwe@octave.org> parents: 9794 diff changeset	28 #endif
10411 479cc8a0a846 use gnulib namespace John W. Eaton <jwe@octave.org> parents: 10315 diff changeset	29
10019 7ad32bf759c3 lex.cc: Use %top block to include config.h John W. Eaton <jwe@octave.org> parents: 9794 diff changeset	30 }
7ad32bf759c3 lex.cc: Use %top block to include config.h John W. Eaton <jwe@octave.org> parents: 9794 diff changeset	31
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	32 %s COMMAND_START
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	33 %s MATRIX_START
4240 8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe] jwe parents: 4238 diff changeset	34
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	35 %x SCRIPT_FILE_BEGIN
9474 25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	36 %x FUNCTION_FILE_BEGIN
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	37
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	38 %{
240 a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe] jwe parents: 216 diff changeset	39
1341 e4e4131b1648 [project @ 1995-09-04 00:13:33 by jwe] jwe parents: 1315 diff changeset	40 #include <cctype>
e4e4131b1648 [project @ 1995-09-04 00:13:33 by jwe] jwe parents: 1315 diff changeset	41 #include <cstring>
e4e4131b1648 [project @ 1995-09-04 00:13:33 by jwe] jwe parents: 1315 diff changeset	42
8950 d865363208d6 include <iosfwd> instead of <iostream> in header files John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	43 #include <iostream>
8001 ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context John W. Eaton <jwe@octave.org> parents: 7898 diff changeset	44 #include <set>
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5615 diff changeset	45 #include <sstream>
1823 5cdd59e7579a [project @ 1996-02-01 12:45:05 by jwe] jwe parents: 1755 diff changeset	46 #include <string>
4214 b9317f3973ec [project @ 2002-12-04 04:57:01 by jwe] jwe parents: 4208 diff changeset	47 #include <stack>
1823 5cdd59e7579a [project @ 1996-02-01 12:45:05 by jwe] jwe parents: 1755 diff changeset	48
4093 5a82e874999b [project @ 2002-10-08 23:48:45 by jwe] jwe parents: 4064 diff changeset	49 #include <sys/types.h>
5a82e874999b [project @ 2002-10-08 23:48:45 by jwe] jwe parents: 4064 diff changeset	50 #include <unistd.h>
5a82e874999b [project @ 2002-10-08 23:48:45 by jwe] jwe parents: 4064 diff changeset	51
2926 66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe] jwe parents: 2900 diff changeset	52 #include "cmd-edit.h"
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4131 diff changeset	53 #include "quit.h"
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	54 #include "lo-mappers.h"
2926 66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe] jwe parents: 2900 diff changeset	55
1497 48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	56 // These would be alphabetical, but y.tab.h must be included before
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	57 // oct-gperf.h and y.tab.h must be included after token.h and the tree
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	58 // class declarations. We can't include y.tab.h in oct-gperf.h
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	59 // because it may not be protected to allow it to be included multiple
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	60 // times.
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	61
4264 4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe] jwe parents: 4248 diff changeset	62 #include "Cell.h"
3665 0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	63 #include "comment-list.h"
2181 138b3c98dc85 [project @ 1996-05-13 18:02:31 by jwe] jwe parents: 2167 diff changeset	64 #include "defun.h"
1355 94697d007075 [project @ 1995-09-05 20:04:15 by jwe] jwe parents: 1351 diff changeset	65 #include "error.h"
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	66 #include "gripes.h"
1351 8256c4c57419 [project @ 1995-09-05 08:02:08 by jwe] jwe parents: 1341 diff changeset	67 #include "input.h"
1355 94697d007075 [project @ 1995-09-05 20:04:15 by jwe] jwe parents: 1351 diff changeset	68 #include "lex.h"
2891 1a30f46e1870 [project @ 1997-04-28 01:49:00 by jwe] jwe parents: 2877 diff changeset	69 #include "ov.h"
1355 94697d007075 [project @ 1995-09-05 20:04:15 by jwe] jwe parents: 1351 diff changeset	70 #include "parse.h"
14329 8d1ae996c122 also save and restore symbol table context in parser (bug #35448) John W. Eaton <jwe@octave.org> parents: 14294 diff changeset	71 #include "parse-private.h"
2987 ae20b3f37f5e [project @ 1997-05-16 07:05:15 by jwe] jwe parents: 2982 diff changeset	72 #include "pt-all.h"
2891 1a30f46e1870 [project @ 1997-04-28 01:49:00 by jwe] jwe parents: 2877 diff changeset	73 #include "symtab.h"
1a30f46e1870 [project @ 1997-04-28 01:49:00 by jwe] jwe parents: 2877 diff changeset	74 #include "token.h"
1a30f46e1870 [project @ 1997-04-28 01:49:00 by jwe] jwe parents: 2877 diff changeset	75 #include "toplev.h"
1355 94697d007075 [project @ 1995-09-05 20:04:15 by jwe] jwe parents: 1351 diff changeset	76 #include "utils.h"
94697d007075 [project @ 1995-09-05 20:04:15 by jwe] jwe parents: 1351 diff changeset	77 #include "variables.h"
9794 0d4613a736e9 convert build system to use automake and libtool John W. Eaton <jwe@octave.org> parents: 9476 diff changeset	78 #include <oct-parse.h>
2492 06595bc7f2d0 [project @ 1996-11-09 00:13:50 by jwe] jwe parents: 2375 diff changeset	79 #include <oct-gperf.h>
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	80
10426 4db7beace28e oct-parse.yy, lex.ll: use symbols via gnulib namespace John W. Eaton <jwe@octave.org> parents: 10411 diff changeset	81 #if defined (GNULIB_NAMESPACE)
4db7beace28e oct-parse.yy, lex.ll: use symbols via gnulib namespace John W. Eaton <jwe@octave.org> parents: 10411 diff changeset	82 // Calls to the following functions appear in the generated output from
4db7beace28e oct-parse.yy, lex.ll: use symbols via gnulib namespace John W. Eaton <jwe@octave.org> parents: 10411 diff changeset	83 // flex without the namespace tag. Redefine them so we will use them
4db7beace28e oct-parse.yy, lex.ll: use symbols via gnulib namespace John W. Eaton <jwe@octave.org> parents: 10411 diff changeset	84 // via the gnulib namespace.
4db7beace28e oct-parse.yy, lex.ll: use symbols via gnulib namespace John W. Eaton <jwe@octave.org> parents: 10411 diff changeset	85 #define fprintf GNULIB_NAMESPACE::fprintf
4db7beace28e oct-parse.yy, lex.ll: use symbols via gnulib namespace John W. Eaton <jwe@octave.org> parents: 10411 diff changeset	86 #define fwrite GNULIB_NAMESPACE::fwrite
14161 f4b5a2f899d3 check in change accidentally omitted from previuos changeset John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	87 #define isatty GNULIB_NAMESPACE::isatty
10426 4db7beace28e oct-parse.yy, lex.ll: use symbols via gnulib namespace John W. Eaton <jwe@octave.org> parents: 10411 diff changeset	88 #define malloc GNULIB_NAMESPACE::malloc
4db7beace28e oct-parse.yy, lex.ll: use symbols via gnulib namespace John W. Eaton <jwe@octave.org> parents: 10411 diff changeset	89 #define realloc GNULIB_NAMESPACE::realloc
4db7beace28e oct-parse.yy, lex.ll: use symbols via gnulib namespace John W. Eaton <jwe@octave.org> parents: 10411 diff changeset	90 #endif
4db7beace28e oct-parse.yy, lex.ll: use symbols via gnulib namespace John W. Eaton <jwe@octave.org> parents: 10411 diff changeset	91
2716 2b5c27299cde [project @ 1997-02-22 08:40:55 by jwe] jwe parents: 2702 diff changeset	92 #if ! (defined (FLEX_SCANNER) \
2b5c27299cde [project @ 1997-02-22 08:40:55 by jwe] jwe parents: 2702 diff changeset	93 && defined (YY_FLEX_MAJOR_VERSION) && YY_FLEX_MAJOR_VERSION >= 2 \
2b5c27299cde [project @ 1997-02-22 08:40:55 by jwe] jwe parents: 2702 diff changeset	94 && defined (YY_FLEX_MINOR_VERSION) && YY_FLEX_MINOR_VERSION >= 5)
2b5c27299cde [project @ 1997-02-22 08:40:55 by jwe] jwe parents: 2702 diff changeset	95 #error lex.l requires flex version 2.5.4 or later
2b5c27299cde [project @ 1997-02-22 08:40:55 by jwe] jwe parents: 2702 diff changeset	96 #endif
2b5c27299cde [project @ 1997-02-22 08:40:55 by jwe] jwe parents: 2702 diff changeset	97
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	98 #define yylval octave_lval
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	99
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	100 // Arrange to get input via readline.
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	101
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	102 #ifdef YY_INPUT
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	103 #undef YY_INPUT
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	104 #endif
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	105 #define YY_INPUT(buf, result, max_size) \
16098 24b3800d30e7 move octave_read to lex.ll John W. Eaton <jwe@octave.org> parents: 15468 diff changeset	106 result = octave_read (buf, max_size)
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	107
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	108 // Try to avoid crashing out completely on fatal scanner errors.
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	109 // The call to yy_fatal_error should never happen, but it avoids a
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14161 diff changeset	110 // 'static function defined but not used' warning from gcc.
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	111
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	112 #ifdef YY_FATAL_ERROR
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	113 #undef YY_FATAL_ERROR
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	114 #endif
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	115 #define YY_FATAL_ERROR(msg) \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	116 do \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	117 { \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	118 error (msg); \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	119 OCTAVE_QUIT; \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	120 yy_fatal_error (msg); \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	121 } \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	122 while (0)
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	123
7722 c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	124 #define DISPLAY_TOK_AND_RETURN(tok) \
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	125 do \
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	126 { \
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	127 int tok_val = tok; \
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	128 if (Vdisplay_tokens) \
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	129 display_token (tok_val); \
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	130 if (lexer_debug_flag) \
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	131 { \
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	132 std::cerr << "R: "; \
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	133 display_token (tok_val); \
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	134 std::cerr << std::endl; \
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	135 } \
7722 c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	136 return tok_val; \
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	137 } \
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	138 while (0)
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	139
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	140 #define COUNT_TOK_AND_RETURN(tok) \
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	141 do \
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	142 { \
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	143 Vtoken_count++; \
7722 c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	144 DISPLAY_TOK_AND_RETURN (tok); \
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	145 } \
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	146 while (0)
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	147
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	148 #define TOK_RETURN(tok) \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	149 do \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	150 { \
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	151 curr_lexer->current_input_column += yyleng; \
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	152 curr_lexer->quote_is_transpose = false; \
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	153 curr_lexer->convert_spaces_to_comma = true; \
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	154 COUNT_TOK_AND_RETURN (tok); \
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	155 } \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	156 while (0)
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	157
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	158 #define TOK_PUSH_AND_RETURN(name, tok) \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	159 do \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	160 { \
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	161 yylval.tok_val = new token (name, curr_lexer->input_line_number, \
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	162 curr_lexer->current_input_column); \
16111 3ec4f6488569 move token stack to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16110 diff changeset	163 curr_lexer->token_stack.push (yylval.tok_val); \
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	164 TOK_RETURN (tok); \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	165 } \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	166 while (0)
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	167
12627 002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	168 #define BIN_OP_RETURN_INTERNAL(tok, convert, bos, qit) \
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	169 do \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	170 { \
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	171 yylval.tok_val = new token (curr_lexer->input_line_number, \
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	172 curr_lexer->current_input_column); \
16111 3ec4f6488569 move token stack to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16110 diff changeset	173 curr_lexer->token_stack.push (yylval.tok_val); \
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	174 curr_lexer->current_input_column += yyleng; \
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	175 curr_lexer->quote_is_transpose = qit; \
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	176 curr_lexer->convert_spaces_to_comma = convert; \
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	177 curr_lexer->looking_for_object_index = false; \
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	178 curr_lexer->at_beginning_of_statement = bos; \
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	179 COUNT_TOK_AND_RETURN (tok); \
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	180 } \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	181 while (0)
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	182
12627 002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	183 #define XBIN_OP_RETURN_INTERNAL(tok, convert, bos, qit) \
002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	184 do \
002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	185 { \
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	186 curr_lexer->gripe_matlab_incompatible_operator (yytext); \
12627 002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	187 BIN_OP_RETURN_INTERNAL (tok, convert, bos, qit); \
002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	188 } \
002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	189 while (0)
002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	190
002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	191 #define BIN_OP_RETURN(tok, convert, bos) \
002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	192 do \
002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	193 { \
002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	194 BIN_OP_RETURN_INTERNAL (tok, convert, bos, false); \
002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	195 } \
002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	196 while (0)
002948ae5bc0 fix precedence level of transpose operators (bug #32533) John W. Eaton <jwe@octave.org> parents: 12174 diff changeset	197
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	198 #define XBIN_OP_RETURN(tok, convert, bos) \
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	199 do \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	200 { \
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	201 curr_lexer->gripe_matlab_incompatible_operator (yytext); \
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	202 BIN_OP_RETURN (tok, convert, bos); \
4753 9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	203 } \
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	204 while (0)
9f0ce1536368 [project @ 2004-02-13 17:55:24 by jwe] jwe parents: 4678 diff changeset	205
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	206 #define LEXER_DEBUG(pattern) \
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	207 do \
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	208 { \
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	209 if (lexer_debug_flag) \
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	210 lexer_debug (pattern, yytext); \
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	211 } \
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	212 while (0)
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	213
16100 6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16098 diff changeset	214 // The state of the lexer.
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	215 lexical_feedback *curr_lexer = 0;
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1823 diff changeset	216
7722 c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	217 static bool Vdisplay_tokens = false;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	218
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	219 static unsigned int Vtoken_count = 0;
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	220
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	221 // Internal variable for lexer debugging state.
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	222 static bool lexer_debug_flag = false;
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	223
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	224 // Forward declarations for functions defined at the bottom of this
16114 73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	225 // file that are needed inside the lexer actions.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	226
3523 b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe] jwe parents: 3503 diff changeset	227 static std::string strip_trailing_whitespace (char *s);
16098 24b3800d30e7 move octave_read to lex.ll John W. Eaton <jwe@octave.org> parents: 15468 diff changeset	228 static int octave_read (char *buf, unsigned int max_size);
7722 c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	229 static void display_token (int tok);
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	230 static void lexer_debug (const char pattern, const char text);
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	231
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	232 %}
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	233
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	234 D [0-9]
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	235 S [ \t]
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	236 NL ((\n)\|(\r)\|(\r\n))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	237 SNL ({S}\|{NL})
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	238 EL (\.\.\.)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	239 BS (\\)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	240 CONT ({EL}\|{BS})
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	241 Im [iIjJ]
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	242 CCHAR [#%]
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	243 COMMENT ({CCHAR}.*{NL})
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	244 SNLCMT ({SNL}\|{COMMENT})
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	245 NOT ((\~)\|(\!))
4037 7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	246 POW ((\\)\|(\^))
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	247 EPOW (\.{POW})
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	248 IDENT ([_$a-zA-Z][_$a-zA-Z0-9]*)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	249 EXPON ([DdEe][+-]?{D}+)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	250 NUMBER (({D}+\.?{D}*{EXPON}?)\|(\.{D}+{EXPON}?)\|(0[xX][0-9a-fA-F]+))
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	251 %%
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	252
9474 25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	253 %{
25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	254 // Make script and function files start with a bogus token. This makes
25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	255 // the parser go down a special path.
25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	256 %}
25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	257
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	258 <SCRIPT_FILE_BEGIN>. {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	259 LEXER_DEBUG ("<SCRIPT_FILE_BEGIN>.");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	260
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	261 BEGIN (INITIAL);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	262 curr_lexer->xunput (yytext[0], yytext);
9474 25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	263 COUNT_TOK_AND_RETURN (SCRIPT_FILE);
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	264 }
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	265
9474 25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	266 <FUNCTION_FILE_BEGIN>. {
25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	267 LEXER_DEBUG ("<FUNCTION_FILE_BEGIN>.");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	268
4323 0990c9b77109 [project @ 2003-02-14 07:36:26 by jwe] jwe parents: 4318 diff changeset	269 BEGIN (INITIAL);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	270 curr_lexer->xunput (yytext[0], yytext);
9474 25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9324 diff changeset	271 COUNT_TOK_AND_RETURN (FUNCTION_FILE);
4238 a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe] jwe parents: 4237 diff changeset	272 }
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe] jwe parents: 4237 diff changeset	273
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	274 %{
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	275 // Help and other command-style functions.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	276 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	277
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	278 <COMMAND_START>{NL} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	279 LEXER_DEBUG ("<COMMAND_START>{NL}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	280
4323 0990c9b77109 [project @ 2003-02-14 07:36:26 by jwe] jwe parents: 4318 diff changeset	281 BEGIN (INITIAL);
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	282 curr_lexer->input_line_number++;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	283 curr_lexer->current_input_column = 1;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	284
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	285 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	286 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	287 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	288 curr_lexer->at_beginning_of_statement = true;
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	289
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	290 COUNT_TOK_AND_RETURN ('\n');
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	291 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	292
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	293 <COMMAND_START>[\;\,] {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	294 LEXER_DEBUG ("<COMMAND_START>[\\;\\,]");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	295
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	296 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	297 curr_lexer->at_beginning_of_statement = true;
5102 b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe] jwe parents: 5088 diff changeset	298
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe] jwe parents: 5088 diff changeset	299 BEGIN (INITIAL);
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe] jwe parents: 5088 diff changeset	300
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe] jwe parents: 5088 diff changeset	301 if (strcmp (yytext, ",") == 0)
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe] jwe parents: 5088 diff changeset	302 TOK_RETURN (',');
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	303 else
5102 b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe] jwe parents: 5088 diff changeset	304 TOK_RETURN (';');
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	305 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	306
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	307 <COMMAND_START>[\"\'] {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	308 LEXER_DEBUG ("<COMMAND_START>[\\\"\\']");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	309
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	310 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	311
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	312 curr_lexer->current_input_column++;
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	313 int tok = curr_lexer->handle_string (yytext[0]);
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	314
7722 c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	315 COUNT_TOK_AND_RETURN (tok);
975 e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	316 }
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	317
4923 b11223097ad4 [project @ 2004-08-02 16:33:11 by jwe] jwe parents: 4910 diff changeset	318 <COMMAND_START>[^#% \t\r\n\;\,\"\'][^ \t\r\n\;\,]{S} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	319 LEXER_DEBUG ("<COMMAND_START>[^#% \\t\\r\\n\\;\\,\\\"\\'][^ \\t\\r\\n\\;\\,]{S}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	320
3523 b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe] jwe parents: 3503 diff changeset	321 std::string tok = strip_trailing_whitespace (yytext);
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	322
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	323 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	324 curr_lexer->at_beginning_of_statement = false;
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	325
5279 bd32f770c09a [project @ 2005-04-12 21:55:31 by jwe] jwe parents: 5225 diff changeset	326 TOK_PUSH_AND_RETURN (tok, SQ_STRING);
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	327 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	328
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	329 %{
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	330 // For this and the next two rules, we're looking at ']', and we
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14161 diff changeset	331 // need to know if the next token is '=' or '=='.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	332 //
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	333 // It would have been so much easier if the delimiters were simply
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	334 // different for the expression on the left hand side of the equals
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	335 // operator.
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	336 //
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	337 // It's also a pain in the ass to decide whether to insert a comma
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	338 // after seeing a ']' character...
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	339
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	340 // FIXME -- we need to handle block comments here.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	341 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	342
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	343 <MATRIX_START>{SNLCMT}\]{S} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	344 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}\\]{S}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	345
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	346 curr_lexer->scan_for_comments (yytext);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	347 curr_lexer->fixup_column_count (yytext);
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	348
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	349 curr_lexer->looking_at_object_index.pop_front ();
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	350
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	351 curr_lexer->looking_for_object_index = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	352 curr_lexer->at_beginning_of_statement = false;
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	353
1001 641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	354 int c = yytext[yyleng-1];
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	355 bool cont_is_spc = (curr_lexer->eat_continuation () != lexical_feedback::NO_WHITESPACE);
4608 22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	356 bool spc_gobbled = (cont_is_spc \|\| c == ' ' \|\| c == '\t');
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	357 int tok_to_return = curr_lexer->handle_close_bracket (spc_gobbled, ']');
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	358
5345 2781568bf951 [project @ 2005-05-10 05:31:12 by jwe] jwe parents: 5307 diff changeset	359 if (spc_gobbled)
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	360 curr_lexer->xunput (' ', yytext);
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	361
5345 2781568bf951 [project @ 2005-05-10 05:31:12 by jwe] jwe parents: 5307 diff changeset	362 COUNT_TOK_AND_RETURN (tok_to_return);
4608 22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	363 }
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	364
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	365 %{
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	366 // FIXME -- we need to handle block comments here.
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	367 %}
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	368
4608 22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	369 <MATRIX_START>{SNLCMT}\}{S} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	370 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}\\}{S}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	371
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	372 curr_lexer->scan_for_comments (yytext);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	373 curr_lexer->fixup_column_count (yytext);
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	374
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	375 curr_lexer->looking_at_object_index.pop_front ();
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	376
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	377 curr_lexer->looking_for_object_index = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	378 curr_lexer->at_beginning_of_statement = false;
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	379
4608 22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	380 int c = yytext[yyleng-1];
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	381 bool cont_is_spc = (curr_lexer->eat_continuation () != lexical_feedback::NO_WHITESPACE);
4608 22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	382 bool spc_gobbled = (cont_is_spc \|\| c == ' ' \|\| c == '\t');
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	383 int tok_to_return = curr_lexer->handle_close_bracket (spc_gobbled, '}');
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	384
5345 2781568bf951 [project @ 2005-05-10 05:31:12 by jwe] jwe parents: 5307 diff changeset	385 if (spc_gobbled)
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	386 curr_lexer->xunput (' ', yytext);
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	387
5345 2781568bf951 [project @ 2005-05-10 05:31:12 by jwe] jwe parents: 5307 diff changeset	388 COUNT_TOK_AND_RETURN (tok_to_return);
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	389 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	390
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	391 %{
1088 0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe] jwe parents: 1082 diff changeset	392 // Commas are element separators in matrix constants. If we don't
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe] jwe parents: 1082 diff changeset	393 // check for continuations here we can end up inserting too many
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe] jwe parents: 1082 diff changeset	394 // commas.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	395 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	396
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	397 <MATRIX_START>{S}\,{S} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	398 LEXER_DEBUG ("<MATRIX_START>{S}\\,{S}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	399
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	400 curr_lexer->current_input_column += yyleng;
3388 42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	401
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	402 int tmp = curr_lexer->eat_continuation ();
3388 42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	403
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	404 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	405 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	406 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	407 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	408
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	409 if (! curr_lexer->looking_at_object_index.front ())
3388 42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	410 {
16106 031117f4db7c use enum for values returned by eat_continuation and eat_whitespace John W. Eaton <jwe@octave.org> parents: 16105 diff changeset	411 if ((tmp & lexical_feedback::NEWLINE) == lexical_feedback::NEWLINE)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	412 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	413 curr_lexer->maybe_warn_separator_insert (';');
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	414
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	415 curr_lexer->xunput (';', yytext);
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	416 }
3388 42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	417 }
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	418
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	419 COUNT_TOK_AND_RETURN (',');
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	420 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	421
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	422 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	423 // In some cases, spaces in matrix constants can turn into commas.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	424 // If commas are required, spaces are not important in matrix
1088 0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe] jwe parents: 1082 diff changeset	425 // constants so we just eat them. If we don't check for continuations
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe] jwe parents: 1082 diff changeset	426 // here we can end up inserting too many commas.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	427 %}
430 8464d5778a09 [project @ 1994-05-25 08:33:54 by jwe] jwe parents: 428 diff changeset	428
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	429 <MATRIX_START>{S}+ {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	430 LEXER_DEBUG ("<MATRIX_START>{S}+");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	431
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	432 curr_lexer->current_input_column += yyleng;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	433
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	434 curr_lexer->at_beginning_of_statement = false;
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	435
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	436 int tmp = curr_lexer->eat_continuation ();
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	437
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	438 if (! curr_lexer->looking_at_object_index.front ())
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	439 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	440 bool bin_op = curr_lexer->next_token_is_bin_op (true);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	441 bool postfix_un_op = curr_lexer->next_token_is_postfix_unary_op (true);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	442 bool sep_op = curr_lexer->next_token_is_sep_op ();
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	443
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	444 if (! (postfix_un_op \|\| bin_op \|\| sep_op)
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	445 && curr_lexer->nesting_level.is_bracket_or_brace ()
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	446 && curr_lexer->convert_spaces_to_comma)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	447 {
16106 031117f4db7c use enum for values returned by eat_continuation and eat_whitespace John W. Eaton <jwe@octave.org> parents: 16105 diff changeset	448 if ((tmp & lexical_feedback::NEWLINE) == lexical_feedback::NEWLINE)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	449 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	450 curr_lexer->maybe_warn_separator_insert (';');
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	451
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	452 curr_lexer->xunput (';', yytext);
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	453 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	454
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	455 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	456 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	457 curr_lexer->looking_for_object_index = false;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	458
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	459 curr_lexer->maybe_warn_separator_insert (',');
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	460
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	461 COUNT_TOK_AND_RETURN (',');
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	462 }
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	463 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	464 }
430 8464d5778a09 [project @ 1994-05-25 08:33:54 by jwe] jwe parents: 428 diff changeset	465
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	466 %{
1088 0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe] jwe parents: 1082 diff changeset	467 // Semicolons are handled as row seprators in matrix constants. If we
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe] jwe parents: 1082 diff changeset	468 // don't eat whitespace here we can end up inserting too many
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe] jwe parents: 1082 diff changeset	469 // semicolons.
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	470
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	471 // FIXME -- we need to handle block comments here.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	472 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	473
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	474 <MATRIX_START>{SNLCMT};{SNLCMT} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	475 LEXER_DEBUG ("<MATRIX_START>{SNLCMT};{SNLCMT}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	476
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	477 curr_lexer->scan_for_comments (yytext);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	478 curr_lexer->fixup_column_count (yytext);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	479 curr_lexer->eat_whitespace ();
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	480
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	481 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	482 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	483 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	484 curr_lexer->at_beginning_of_statement = false;
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	485
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	486 COUNT_TOK_AND_RETURN (';');
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	487 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	488
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	489 %{
1088 0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe] jwe parents: 1082 diff changeset	490 // In some cases, new lines can also become row separators. If we
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe] jwe parents: 1082 diff changeset	491 // don't eat whitespace here we can end up inserting too many
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe] jwe parents: 1082 diff changeset	492 // semicolons.
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	493
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	494 // FIXME -- we need to handle block comments here.
985 4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe] jwe parents: 975 diff changeset	495 %}
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe] jwe parents: 975 diff changeset	496
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	497 <MATRIX_START>{S}{COMMENT}{SNLCMT} \|
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	498 <MATRIX_START>{S}{NL}{SNLCMT} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	499 LEXER_DEBUG ("<MATRIX_START>{S}{COMMENT}{SNLCMT}\|<MATRIX_START>{S}{NL}{SNLCMT}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	500
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	501 curr_lexer->scan_for_comments (yytext);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	502 curr_lexer->fixup_column_count (yytext);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	503 curr_lexer->eat_whitespace ();
3388 42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	504
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	505 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	506 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	507 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	508
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	509 if (curr_lexer->nesting_level.none ())
4476 b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe] jwe parents: 4426 diff changeset	510 return LEXICAL_ERROR;
985 4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe] jwe parents: 975 diff changeset	511
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	512 if (! curr_lexer->looking_at_object_index.front ()
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	513 && curr_lexer->nesting_level.is_bracket_or_brace ())
3388 42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	514 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	515 curr_lexer->maybe_warn_separator_insert (';');
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	516
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	517 COUNT_TOK_AND_RETURN (';');
985 4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe] jwe parents: 975 diff changeset	518 }
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe] jwe parents: 975 diff changeset	519 }
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe] jwe parents: 975 diff changeset	520
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	521 \[{S}* {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	522 LEXER_DEBUG ("\\[{S}*");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	523
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	524 curr_lexer->nesting_level.bracket ();
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	525
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	526 curr_lexer->looking_at_object_index.push_front (false);
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	527
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	528 curr_lexer->current_input_column += yyleng;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	529 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	530 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	531 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	532 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	533
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	534 if (curr_lexer->defining_func
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	535 && ! curr_lexer->parsed_function_name.top ())
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	536 curr_lexer->looking_at_return_list = true;
5615 d01f07aeaec5 [project @ 2006-02-10 21:30:41 by jwe] jwe parents: 5570 diff changeset	537 else
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	538 curr_lexer->looking_at_matrix_or_assign_lhs = true;
5615 d01f07aeaec5 [project @ 2006-02-10 21:30:41 by jwe] jwe parents: 5570 diff changeset	539
975 e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	540 promptflag--;
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	541 curr_lexer->eat_whitespace ();
975 e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	542
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	543 curr_lexer->bracketflag++;
5102 b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe] jwe parents: 5088 diff changeset	544 BEGIN (MATRIX_START);
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe] jwe parents: 5088 diff changeset	545 COUNT_TOK_AND_RETURN ('[');
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	546 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	547
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	548 \] {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	549 LEXER_DEBUG ("\\]");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	550
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	551 curr_lexer->nesting_level.remove ();
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	552
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	553 curr_lexer->looking_at_object_index.pop_front ();
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	554
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	555 curr_lexer->looking_for_object_index = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	556 curr_lexer->at_beginning_of_statement = false;
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	557
5102 b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe] jwe parents: 5088 diff changeset	558 TOK_RETURN (']');
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	559 }
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	560
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	561 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	562 // Imaginary numbers.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	563 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	564
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	565 {NUMBER}{Im} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	566 LEXER_DEBUG ("{NUMBER}{Im}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	567
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	568 curr_lexer->handle_number ();
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	569 COUNT_TOK_AND_RETURN (IMAG_NUM);
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	570 }
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	571
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	572 %{
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14161 diff changeset	573 // Real numbers. Don't grab the '.' part of a dot operator as part of
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	574 // the constant.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	575 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	576
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	577 {D}+/\.[\*/\\^\'] \|
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	578 {NUMBER} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	579 LEXER_DEBUG ("{D}+/\\.[\\*/\\^\\']\|{NUMBER}");
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	580 curr_lexer->handle_number ();
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	581 COUNT_TOK_AND_RETURN (NUM);
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	582 }
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	583
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	584 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	585 // Eat whitespace. Whitespace inside matrix constants is handled by
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	586 // the <MATRIX_START> start state code above.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	587 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	588
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	589 {S}* {
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	590 curr_lexer->current_input_column += yyleng;
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	591 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	592
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	593 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	594 // Continuation lines. Allow comments after continuations.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	595 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	596
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	597 {CONT}{S}*{NL} \|
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	598 {CONT}{S}*{COMMENT} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	599 LEXER_DEBUG ("{CONT}{S}{NL}\|{CONT}{S}{COMMENT}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	600
4037 7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	601 if (yytext[0] == '\\')
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	602 curr_lexer->gripe_matlab_incompatible_continuation ();
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	603 curr_lexer->scan_for_comments (yytext);
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	604 promptflag--;
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	605 curr_lexer->input_line_number++;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	606 curr_lexer->current_input_column = 1;
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	607 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	608
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	609 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	610 // End of file.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	611 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	612
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	613 <<EOF>> {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	614 LEXER_DEBUG ("<<EOF>>");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	615
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	616 if (curr_lexer->block_comment_nesting_level != 0)
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	617 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	618 warning ("block comment open at end of input");
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	619
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	620 if ((reading_fcn_file \|\| reading_script_file \|\| reading_classdef_file)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	621 && ! curr_fcn_file_name.empty ())
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14161 diff changeset	622 warning ("near line %d of file '%s.m'",
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	623 curr_lexer->input_line_number, curr_fcn_file_name.c_str ());
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	624 }
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	625
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	626 TOK_RETURN (END_OF_INPUT);
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	627 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	628
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	629 %{
970 9382316a8a01 [project @ 1994-12-12 06:03:34 by jwe] jwe parents: 969 diff changeset	630 // Identifiers. Truncate the token at the first space or tab but
9382316a8a01 [project @ 1994-12-12 06:03:34 by jwe] jwe parents: 969 diff changeset	631 // don't write directly on yytext.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	632 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	633
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	634 {IDENT}{S}* {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	635 LEXER_DEBUG ("{IDENT}{S}*");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	636
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	637 int id_tok = curr_lexer->handle_identifier ();
4238 a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe] jwe parents: 4237 diff changeset	638
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe] jwe parents: 4237 diff changeset	639 if (id_tok >= 0)
9324 29563379fa9b don't look for object index after keyword John W. Eaton <jwe@octave.org> parents: 8974 diff changeset	640 COUNT_TOK_AND_RETURN (id_tok);
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	641 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	642
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	643 %{
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	644 // Superclass method identifiers.
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	645 %}
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	646
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	647 {IDENT}@{IDENT}{S}* \|
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	648 {IDENT}@{IDENT}.{IDENT}{S}* {
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	649 LEXER_DEBUG ("{IDENT}@{IDENT}{S}\|{IDENT}@{IDENT}.{IDENT}{S}");
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	650
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	651 int id_tok = curr_lexer->handle_superclass_identifier ();
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	652
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	653 if (id_tok >= 0)
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	654 {
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	655 curr_lexer->looking_for_object_index = true;
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	656
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	657 COUNT_TOK_AND_RETURN (SUPERCLASSREF);
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	658 }
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	659 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	660
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	661 %{
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	662 // Metaclass query
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	663 %}
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	664
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	665 \?{IDENT}{S}* \|
14638 5b0872b5b234 fix missing backslash quoting in lexer rules John W. Eaton <jwe@octave.org> parents: 14510 diff changeset	666 \?{IDENT}\.{IDENT}{S}* {
5b0872b5b234 fix missing backslash quoting in lexer rules John W. Eaton <jwe@octave.org> parents: 14510 diff changeset	667 LEXER_DEBUG ("\\?{IDENT}{S}\|\\?{IDENT}\\.{IDENT}{S}");
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	668
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	669 int id_tok = curr_lexer->handle_meta_identifier ();
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	670
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	671 if (id_tok >= 0)
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	672 {
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	673 curr_lexer->looking_for_object_index = true;
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	674
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	675 COUNT_TOK_AND_RETURN (METAQUERY);
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	676 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	677 }
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	678
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	679 %{
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	680 // Function handles and superclass references
4342 813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe] jwe parents: 4323 diff changeset	681 %}
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe] jwe parents: 4323 diff changeset	682
4930 bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe] jwe parents: 4923 diff changeset	683 "@" {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	684 LEXER_DEBUG ("@");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	685
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	686 curr_lexer->current_input_column++;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	687
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	688 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	689 curr_lexer->convert_spaces_to_comma = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	690 curr_lexer->looking_at_function_handle++;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	691 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	692 curr_lexer->at_beginning_of_statement = false;
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	693
4930 bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe] jwe parents: 4923 diff changeset	694 COUNT_TOK_AND_RETURN ('@');
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	695
4342 813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe] jwe parents: 4323 diff changeset	696 }
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe] jwe parents: 4323 diff changeset	697
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe] jwe parents: 4323 diff changeset	698 %{
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	699 // A new line character. New line characters inside matrix constants
4208 e96f52432059 [project @ 2002-12-03 19:48:57 by jwe] jwe parents: 4198 diff changeset	700 // are handled by the <MATRIX_START> start state code above. If closest
985 4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe] jwe parents: 975 diff changeset	701 // nesting is inside parentheses, don't return a row separator.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	702 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	703
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	704 {NL} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	705 LEXER_DEBUG ("{NL}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	706
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	707 curr_lexer->input_line_number++;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	708 curr_lexer->current_input_column = 1;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	709
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	710 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	711 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	712
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	713 if (curr_lexer->nesting_level.none ())
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	714 {
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	715 curr_lexer->at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	716 COUNT_TOK_AND_RETURN ('\n');
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	717 }
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	718 else if (curr_lexer->nesting_level.is_paren ())
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	719 {
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	720 curr_lexer->at_beginning_of_statement = false;
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	721 curr_lexer->gripe_matlab_incompatible ("bare newline inside parentheses");
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	722 }
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	723 else if (curr_lexer->nesting_level.is_bracket_or_brace ())
985 4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe] jwe parents: 975 diff changeset	724 return LEXICAL_ERROR;
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	725 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	726
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	727 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	728 // Single quote can either be the beginning of a string or a transpose
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	729 // operator.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	730 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	731
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	732 "'" {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	733 LEXER_DEBUG ("'");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	734
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	735 curr_lexer->current_input_column++;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	736 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	737
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	738 if (curr_lexer->quote_is_transpose)
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	739 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	740 curr_lexer->do_comma_insert_check ();
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	741 COUNT_TOK_AND_RETURN (QUOTE);
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	742 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	743 else
7722 c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	744 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	745 int tok = curr_lexer->handle_string ('\'');
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	746 COUNT_TOK_AND_RETURN (tok);
7722 c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	747 }
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	748 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	749
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	750 %{
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	751 // Double quotes always begin strings.
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	752 %}
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	753
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	754 \" {
14642 6edd02858516 lex.ll: fix think-o in previous change John W. Eaton <jwe@octave.org> parents: 14638 diff changeset	755 LEXER_DEBUG ("\"");
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	756
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	757 curr_lexer->current_input_column++;
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	758 int tok = curr_lexer->handle_string ('"');
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	759
7722 c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	760 COUNT_TOK_AND_RETURN (tok);
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	761 }
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	762
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	763 %{
8536 de1b944d5306 lex.l: finish previous change John W. Eaton <jwe@octave.org> parents: 8535 diff changeset	764 // Gobble comments.
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	765 %}
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	766
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	767 {CCHAR} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	768 LEXER_DEBUG ("{CCHAR}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	769
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	770 curr_lexer->looking_for_object_index = false;
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	771
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	772 curr_lexer->xunput (yytext[0], yytext);
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	773
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	774 bool eof = false;
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	775 int tok = curr_lexer->process_comment (false, eof);
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	776
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	777 if (eof)
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	778 TOK_RETURN (END_OF_INPUT);
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	779 else if (tok > 0)
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	780 COUNT_TOK_AND_RETURN (tok);
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	781 }
440 e27d10f2e573 [project @ 1994-05-30 03:33:37 by jwe] jwe parents: 430 diff changeset	782
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	783 %{
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	784 // Block comments.
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	785 %}
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	786
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	787 ^{S}{CCHAR}\{{S}{NL} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	788 LEXER_DEBUG ("^{S}{CCHAR}\\{{S}{NL}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	789
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	790 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	791
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	792 curr_lexer->input_line_number++;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	793 curr_lexer->current_input_column = 1;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	794 curr_lexer->block_comment_nesting_level++;
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	795 promptflag--;
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	796
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	797 bool eof = false;
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	798 curr_lexer->process_comment (true, eof);
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	799 }
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	800
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	801 %{
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	802 // Other operators.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	803 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	804
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	805 ":" { LEXER_DEBUG (":"); BIN_OP_RETURN (':', false, false); }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	806
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	807 ".+" { LEXER_DEBUG (".+"); XBIN_OP_RETURN (EPLUS, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	808 ".-" { LEXER_DEBUG (".-"); XBIN_OP_RETURN (EMINUS, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	809 "." { LEXER_DEBUG ("."); BIN_OP_RETURN (EMUL, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	810 "./" { LEXER_DEBUG ("./"); BIN_OP_RETURN (EDIV, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	811 ".\\" { LEXER_DEBUG (".\\"); BIN_OP_RETURN (ELEFTDIV, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	812 ".^" { LEXER_DEBUG (".^"); BIN_OP_RETURN (EPOW, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	813 "." { LEXER_DEBUG ("."); XBIN_OP_RETURN (EPOW, false, false); }
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	814 ".'" { LEXER_DEBUG (".'"); curr_lexer->do_comma_insert_check (); BIN_OP_RETURN (TRANSPOSE, true, false); }
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	815 "++" { LEXER_DEBUG ("++"); curr_lexer->do_comma_insert_check (); XBIN_OP_RETURN_INTERNAL (PLUS_PLUS, true, false, true); }
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	816 "--" { LEXER_DEBUG ("--"); curr_lexer->do_comma_insert_check (); XBIN_OP_RETURN_INTERNAL (MINUS_MINUS, true, false, true); }
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	817 "<=" { LEXER_DEBUG ("<="); BIN_OP_RETURN (EXPR_LE, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	818 "==" { LEXER_DEBUG ("=="); BIN_OP_RETURN (EXPR_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	819 "~=" { LEXER_DEBUG ("~="); BIN_OP_RETURN (EXPR_NE, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	820 "!=" { LEXER_DEBUG ("!="); XBIN_OP_RETURN (EXPR_NE, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	821 ">=" { LEXER_DEBUG (">="); BIN_OP_RETURN (EXPR_GE, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	822 "&" { LEXER_DEBUG ("&"); BIN_OP_RETURN (EXPR_AND, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	823 "\|" { LEXER_DEBUG ("\|"); BIN_OP_RETURN (EXPR_OR, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	824 "<" { LEXER_DEBUG ("<"); BIN_OP_RETURN (EXPR_LT, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	825 ">" { LEXER_DEBUG (">"); BIN_OP_RETURN (EXPR_GT, false, false); }
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	826 "+" { LEXER_DEBUG ("+"); BIN_OP_RETURN ('+', false, false); }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	827 "-" { LEXER_DEBUG ("-"); BIN_OP_RETURN ('-', false, false); }
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	828 "" { LEXER_DEBUG (""); BIN_OP_RETURN ('*', false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	829 "/" { LEXER_DEBUG ("/"); BIN_OP_RETURN ('/', false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	830 "\\" { LEXER_DEBUG ("\\"); BIN_OP_RETURN (LEFTDIV, false, false); }
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	831 ";" { LEXER_DEBUG (";"); BIN_OP_RETURN (';', true, true); }
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	832 "," { LEXER_DEBUG (","); BIN_OP_RETURN (',', true, ! curr_lexer->looking_at_object_index.front ()); }
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	833 "^" { LEXER_DEBUG ("^"); BIN_OP_RETURN (POW, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	834 "" { LEXER_DEBUG (""); XBIN_OP_RETURN (POW, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	835 "=" { LEXER_DEBUG ("="); BIN_OP_RETURN ('=', true, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	836 "&&" { LEXER_DEBUG ("&&"); BIN_OP_RETURN (EXPR_AND_AND, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	837 "\|\|" { LEXER_DEBUG ("\|\|"); BIN_OP_RETURN (EXPR_OR_OR, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	838 "<<" { LEXER_DEBUG ("<<"); XBIN_OP_RETURN (LSHIFT, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	839 ">>" { LEXER_DEBUG (">>"); XBIN_OP_RETURN (RSHIFT, false, false); }
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	840
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	841 {NOT} {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	842 LEXER_DEBUG ("{NOT}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	843
4037 7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	844 if (yytext[0] == '~')
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	845 BIN_OP_RETURN (EXPR_NOT, false, false);
4037 7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	846 else
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	847 XBIN_OP_RETURN (EXPR_NOT, false, false);
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	848 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	849
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	850 "(" {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	851 LEXER_DEBUG ("(");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	852
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	853 // If we are looking for an object index, then push TRUE for
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	854 // looking_at_object_index. Otherwise, just push whatever state
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	855 // is current (so that we can pop it off the stack when we find
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	856 // the matching close paren).
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	857
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	858 curr_lexer->looking_at_object_index.push_front
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	859 (curr_lexer->looking_for_object_index);
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	860
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	861 curr_lexer->looking_at_indirect_ref = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	862 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	863 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	864
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	865 curr_lexer->nesting_level.paren ();
985 4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe] jwe parents: 975 diff changeset	866 promptflag--;
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	867
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	868 TOK_RETURN ('(');
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	869 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	870
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	871 ")" {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	872 LEXER_DEBUG (")");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	873
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	874 curr_lexer->nesting_level.remove ();
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	875 curr_lexer->current_input_column++;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	876
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	877 curr_lexer->looking_at_object_index.pop_front ();
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	878
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	879 curr_lexer->quote_is_transpose = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	880 curr_lexer->convert_spaces_to_comma
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	881 = (curr_lexer->nesting_level.is_bracket_or_brace ()
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	882 && ! curr_lexer->looking_at_anon_fcn_args);
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	883 curr_lexer->looking_for_object_index = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	884 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	885
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	886 if (curr_lexer->looking_at_anon_fcn_args)
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	887 curr_lexer->looking_at_anon_fcn_args = false;
13237 1bfca2bbea8b fix parsing of anonymous functions inside cell array lists. John W. Eaton <jwe@octave.org> parents: 12801 diff changeset	888
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	889 curr_lexer->do_comma_insert_check ();
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	890
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	891 COUNT_TOK_AND_RETURN (')');
967 b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	892 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe] jwe parents: 947 diff changeset	893
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	894 "." {
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	895 LEXER_DEBUG (".");
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	896
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	897 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	898 curr_lexer->at_beginning_of_statement = false;
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	899
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	900 TOK_RETURN ('.');
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	901 }
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	902
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	903 "+=" { LEXER_DEBUG ("+="); XBIN_OP_RETURN (ADD_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	904 "-=" { LEXER_DEBUG ("-="); XBIN_OP_RETURN (SUB_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	905 "=" { LEXER_DEBUG ("="); XBIN_OP_RETURN (MUL_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	906 "/=" { LEXER_DEBUG ("/="); XBIN_OP_RETURN (DIV_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	907 "\\=" { LEXER_DEBUG ("\\="); XBIN_OP_RETURN (LEFTDIV_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	908 ".+=" { LEXER_DEBUG (".+="); XBIN_OP_RETURN (ADD_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	909 ".-=" { LEXER_DEBUG (".-="); XBIN_OP_RETURN (SUB_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	910 ".=" { LEXER_DEBUG (".="); XBIN_OP_RETURN (EMUL_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	911 "./=" { LEXER_DEBUG ("./="); XBIN_OP_RETURN (EDIV_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	912 ".\\=" { LEXER_DEBUG (".\\="); XBIN_OP_RETURN (ELEFTDIV_EQ, false, false); }
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	913 {POW}= { LEXER_DEBUG ("{POW}="); XBIN_OP_RETURN (POW_EQ, false, false); }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	914 {EPOW}= { LEXER_DEBUG ("{EPOW}="); XBIN_OP_RETURN (EPOW_EQ, false, false); }
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	915 "&=" { LEXER_DEBUG ("&="); XBIN_OP_RETURN (AND_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	916 "\|=" { LEXER_DEBUG ("\|="); XBIN_OP_RETURN (OR_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	917 "<<=" { LEXER_DEBUG ("<<="); XBIN_OP_RETURN (LSHIFT_EQ, false, false); }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	918 ">>=" { LEXER_DEBUG (">>="); XBIN_OP_RETURN (RSHIFT_EQ, false, false); }
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2861 diff changeset	919
4608 22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	920 \{{S}* {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	921 LEXER_DEBUG ("\\{{S}*");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	922
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	923 curr_lexer->nesting_level.brace ();
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	924
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	925 curr_lexer->looking_at_object_index.push_front
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	926 (curr_lexer->looking_for_object_index);
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	927
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	928 curr_lexer->current_input_column += yyleng;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	929 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	930 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	931 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	932 curr_lexer->at_beginning_of_statement = false;
4608 22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	933
3351 8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	934 promptflag--;
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	935 curr_lexer->eat_whitespace ();
4608 22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	936
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	937 curr_lexer->braceflag++;
4608 22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	938 BEGIN (MATRIX_START);
4910 1242acab4246 [project @ 2004-07-12 17:14:13 by jwe] jwe parents: 4867 diff changeset	939 COUNT_TOK_AND_RETURN ('{');
3351 8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	940 }
8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	941
8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	942 "}" {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	943 LEXER_DEBUG ("}");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	944
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	945 curr_lexer->looking_at_object_index.pop_front ();
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	946
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	947 curr_lexer->looking_for_object_index = true;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	948 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	949
7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	950 curr_lexer->nesting_level.remove ();
3351 8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	951
4608 22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	952 TOK_RETURN ('}');
3351 8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	953 }
8623649c967c [project @ 1999-11-15 16:17:01 by jwe] jwe parents: 3332 diff changeset	954
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	955 %{
2066 a75d2a5d6783 [project @ 1996-04-11 21:20:43 by jwe] jwe parents: 2042 diff changeset	956 // Unrecognized input is a lexical error.
968 9351572b7210 [project @ 1994-12-11 21:53:00 by jwe] jwe parents: 967 diff changeset	957 %}
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	958
2042 31f4f775b8c6 [project @ 1996-03-28 09:06:28 by jwe] jwe parents: 1994 diff changeset	959 . {
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	960 LEXER_DEBUG (".");
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	961
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	962 curr_lexer->xunput (yytext[0], yytext);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	963
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	964 int c = curr_lexer->text_yyinput ();
4248 eef64f3f9a4c [project @ 2002-12-31 00:00:20 by jwe] jwe parents: 4241 diff changeset	965
eef64f3f9a4c [project @ 2002-12-31 00:00:20 by jwe] jwe parents: 4241 diff changeset	966 if (c != EOF)
4240 8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe] jwe parents: 4238 diff changeset	967 {
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	968 curr_lexer->current_input_column++;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	969
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14161 diff changeset	970 error ("invalid character '%s' (ASCII %d) near line %d, column %d",
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	971 undo_string_escape (static_cast<char> (c)), c,
16110 7302f8a4df83 use pointer for global lexical_feedback structure John W. Eaton <jwe@octave.org> parents: 16106 diff changeset	972 curr_lexer->input_line_number, curr_lexer->current_input_column);
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	973
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	974 return LEXICAL_ERROR;
4240 8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe] jwe parents: 4238 diff changeset	975 }
8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe] jwe parents: 4238 diff changeset	976 else
8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe] jwe parents: 4238 diff changeset	977 TOK_RETURN (END_OF_INPUT);
2066 a75d2a5d6783 [project @ 1996-04-11 21:20:43 by jwe] jwe parents: 2042 diff changeset	978 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	979
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	980 %%
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	981
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	982 // Fix things up for errors or interrupts. The parser is never called
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	983 // recursively, so it is always safe to reinitialize its state before
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	984 // doing any parsing.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	985
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	986 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	987 reset_parser (void)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	988 {
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1823 diff changeset	989 // Start off on the right foot.
4323 0990c9b77109 [project @ 2003-02-14 07:36:26 by jwe] jwe parents: 4318 diff changeset	990 BEGIN (INITIAL);
4318 115bffcecfd3 [project @ 2003-02-13 05:52:16 by jwe] jwe parents: 4264 diff changeset	991
14329 8d1ae996c122 also save and restore symbol table context in parser (bug #35448) John W. Eaton <jwe@octave.org> parents: 14294 diff changeset	992 parser_symtab_context.clear ();
287 6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe] jwe parents: 246 diff changeset	993
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1823 diff changeset	994 // We do want a prompt by default.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	995 promptflag = 1;
287 6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe] jwe parents: 246 diff changeset	996
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1823 diff changeset	997 // Only ask for input from stdin if we are expecting interactive
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1823 diff changeset	998 // input.
14074 f90c3facfac3 don't reset parser when exiting (bug #35120) John W. Eaton <jwe@octave.org> parents: 13973 diff changeset	999
f90c3facfac3 don't reset parser when exiting (bug #35120) John W. Eaton <jwe@octave.org> parents: 13973 diff changeset	1000 if (! quitting_gracefully
f90c3facfac3 don't reset parser when exiting (bug #35120) John W. Eaton <jwe@octave.org> parents: 13973 diff changeset	1001 && (interactive \|\| forced_interactive)
3880 c21ae2c5840f [project @ 2002-03-26 02:23:06 by jwe] jwe parents: 3867 diff changeset	1002 && ! (reading_fcn_file
14074 f90c3facfac3 don't reset parser when exiting (bug #35120) John W. Eaton <jwe@octave.org> parents: 13973 diff changeset	1003 \|\| reading_classdef_file
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1004 \|\| reading_script_file
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1005 \|\| get_input_from_eval_string
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1006 \|\| input_from_startup_file))
287 6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe] jwe parents: 246 diff changeset	1007 yyrestart (stdin);
991 18be848f10a9 [project @ 1994-12-15 06:06:46 by jwe] jwe parents: 985 diff changeset	1008
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1823 diff changeset	1009 // Clear the buffer for help text.
4426 51a0dcde8778 [project @ 2003-06-13 19:16:37 by jwe] jwe parents: 4410 diff changeset	1010 while (! help_buf.empty ())
51a0dcde8778 [project @ 2003-06-13 19:16:37 by jwe] jwe parents: 4410 diff changeset	1011 help_buf.pop ();
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1012 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1013
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	1014 static void
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1015 display_character (char c)
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1016 {
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1017 if (isgraph (c))
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1018 std::cerr << c;
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1019 else
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1020 switch (c)
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1021 {
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1022 case 0:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1023 std::cerr << "NUL";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1024 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1025
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1026 case 1:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1027 std::cerr << "SOH";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1028 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1029
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1030 case 2:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1031 std::cerr << "STX";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1032 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1033
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1034 case 3:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1035 std::cerr << "ETX";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1036 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1037
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1038 case 4:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1039 std::cerr << "EOT";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1040 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1041
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1042 case 5:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1043 std::cerr << "ENQ";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1044 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1045
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1046 case 6:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1047 std::cerr << "ACK";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1048 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1049
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1050 case 7:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1051 std::cerr << "\\a";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1052 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1053
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1054 case 8:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1055 std::cerr << "\\b";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1056 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1057
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1058 case 9:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1059 std::cerr << "\\t";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1060 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1061
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1062 case 10:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1063 std::cerr << "\\n";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1064 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1065
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1066 case 11:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1067 std::cerr << "\\v";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1068 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1069
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1070 case 12:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1071 std::cerr << "\\f";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1072 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1073
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1074 case 13:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1075 std::cerr << "\\r";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1076 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1077
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1078 case 14:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1079 std::cerr << "SO";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1080 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1081
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1082 case 15:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1083 std::cerr << "SI";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1084 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1085
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1086 case 16:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1087 std::cerr << "DLE";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1088 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1089
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1090 case 17:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1091 std::cerr << "DC1";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1092 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1093
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1094 case 18:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1095 std::cerr << "DC2";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1096 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1097
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1098 case 19:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1099 std::cerr << "DC3";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1100 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1101
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1102 case 20:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1103 std::cerr << "DC4";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1104 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1105
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1106 case 21:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1107 std::cerr << "NAK";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1108 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1109
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1110 case 22:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1111 std::cerr << "SYN";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1112 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1113
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1114 case 23:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1115 std::cerr << "ETB";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1116 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1117
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1118 case 24:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1119 std::cerr << "CAN";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1120 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1121
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1122 case 25:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1123 std::cerr << "EM";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1124 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1125
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1126 case 26:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1127 std::cerr << "SUB";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1128 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1129
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1130 case 27:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1131 std::cerr << "ESC";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1132 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1133
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1134 case 28:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1135 std::cerr << "FS";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1136 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1137
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1138 case 29:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1139 std::cerr << "GS";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1140 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1141
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1142 case 30:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1143 std::cerr << "RS";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1144 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1145
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1146 case 31:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1147 std::cerr << "US";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1148 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1149
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1150 case 32:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1151 std::cerr << "SPACE";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1152 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1153
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1154 case 127:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1155 std::cerr << "DEL";
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1156 break;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1157 }
75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	1158 }
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1159
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1160 // Include these so that we don't have to link to libfl.a.
246 e4d5f689f06d [project @ 1993-12-04 20:01:37 by jwe] jwe parents: 240 diff changeset	1161
3332 7c03933635c6 [project @ 1999-11-02 06:57:12 by jwe] jwe parents: 3263 diff changeset	1162 int
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1163 yywrap (void)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1164 {
287 6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe] jwe parents: 246 diff changeset	1165 return 1;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1166 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1167
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1168 // Tell us all what the current buffer is.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1169
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1170 YY_BUFFER_STATE
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1171 current_buffer (void)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1172 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1173 return YY_CURRENT_BUFFER;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1174 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1175
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1176 // Create a new buffer.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1177
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1178 YY_BUFFER_STATE
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1179 create_buffer (FILE *f)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1180 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1181 return yy_create_buffer (f, YY_BUF_SIZE);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1182 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1183
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1184 // Start reading a new buffer.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1185
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1186 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1187 switch_to_buffer (YY_BUFFER_STATE buf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1188 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1189 yy_switch_to_buffer (buf);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1190 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1191
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1192 // Delete a buffer.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1193
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1194 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1195 delete_buffer (YY_BUFFER_STATE buf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1196 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1197 yy_delete_buffer (buf);
14510 c20de00a66a9 avoid memory error in 'octave --eval 0' (bug #36038) Max Brister <max@2bass.com> parents: 14329 diff changeset	1198
c20de00a66a9 avoid memory error in 'octave --eval 0' (bug #36038) Max Brister <max@2bass.com> parents: 14329 diff changeset	1199 // Prevent invalid yyin from being used by yyrestart.
c20de00a66a9 avoid memory error in 'octave --eval 0' (bug #36038) Max Brister <max@2bass.com> parents: 14329 diff changeset	1200 if (! current_buffer ())
c20de00a66a9 avoid memory error in 'octave --eval 0' (bug #36038) Max Brister <max@2bass.com> parents: 14329 diff changeset	1201 yyin = 0;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1202 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1203
13973 2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1204 // Delete all buffers from the stack.
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1205 void
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1206 clear_all_buffers (void)
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1207 {
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1208 while (current_buffer ())
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1209 octave_pop_buffer_state ();
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1210 }
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1211
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1212 void
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1213 cleanup_parser (void)
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1214 {
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1215 reset_parser ();
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1216
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1217 clear_all_buffers ();
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1218 }
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13260 diff changeset	1219
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1220 // Restore a buffer (for unwind-prot).
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1221
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1222 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1223 restore_input_buffer (void *buf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1224 {
2861 6dcb8e1c9bb2 [project @ 1997-04-13 23:21:38 by jwe] jwe parents: 2857 diff changeset	1225 switch_to_buffer (static_cast<YY_BUFFER_STATE> (buf));
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1226 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1227
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1228 // Delete a buffer (for unwind-prot).
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1229
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1230 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1231 delete_input_buffer (void *buf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1232 {
2861 6dcb8e1c9bb2 [project @ 1997-04-13 23:21:38 by jwe] jwe parents: 2857 diff changeset	1233 delete_buffer (static_cast<YY_BUFFER_STATE> (buf));
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1234 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1235
16114 73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1236 class
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1237 flex_stream_reader : public stream_reader
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1238 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1239 public:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1240 flex_stream_reader (char *buf_arg) : stream_reader (), buf (buf_arg) { }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1241
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1242 int getc (void) { return curr_lexer->text_yyinput (); }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1243 int ungetc (int c) { curr_lexer->xunput (c, buf); return 0; }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1244
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1245 private:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1246
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1247 // No copying!
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1248
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1249 flex_stream_reader (const flex_stream_reader&);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1250
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1251 flex_stream_reader& operator = (const flex_stream_reader&);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1252
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1253 char *buf;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1254 };
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1255
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1256 // Return 1 if the given character matches any character in the given
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1257 // string.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1258
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1259 static bool
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1260 match_any (char c, const char *s)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1261 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1262 char tmp;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1263 while ((tmp = *s++) != '\0')
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1264 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1265 if (c == tmp)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1266 return true;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1267 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1268 return false;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1269 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1270
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1271 // Given information about the spacing surrounding an operator,
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1272 // return 1 if it looks like it should be treated as a binary
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1273 // operator. For example,
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1274 //
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1275 // [ 1 + 2 ] or [ 1+ 2] or [ 1+2 ] ==> binary
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1276 //
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1277 // [ 1 +2 ] ==> unary
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1278
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1279 static bool
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1280 looks_like_bin_op (bool spc_prev, int next_char)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1281 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1282 bool spc_next = (next_char == ' ' \|\| next_char == '\t');
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1283
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1284 return ((spc_prev && spc_next) \|\| ! spc_prev);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1285 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1286
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1287 bool
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1288 is_keyword (const std::string& s)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1289 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1290 // Parsing function names like "set.property_name" inside
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1291 // classdef-style class definitions is simplified by handling the
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1292 // "set" and "get" portions of the names using the same mechanism as
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1293 // is used for keywords. However, they are not really keywords in
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1294 // the language, so omit them from the list of possible keywords.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1295
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1296 return (octave_kw_hash::in_word_set (s.c_str (), s.length ()) != 0
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1297 && ! (s == "set" \|\| s == "get"));
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1298 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1299
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1300 DEFUN (iskeyword, args, ,
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1301 "-- texinfo --\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1302 @deftypefn {Built-in Function} {} iskeyword ()\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1303 @deftypefnx {Built-in Function} {} iskeyword (@var{name})\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1304 Return true if @var{name} is an Octave keyword. If @var{name}\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1305 is omitted, return a list of keywords.\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1306 @seealso{isvarname, exist}\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1307 @end deftypefn")
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1308 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1309 octave_value retval;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1310
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1311 int argc = args.length () + 1;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1312
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1313 string_vector argv = args.make_argv ("iskeyword");
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1314
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1315 if (error_state)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1316 return retval;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1317
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1318 if (argc == 1)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1319 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1320 // Neither set and get are keywords. See the note in the
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1321 // is_keyword function for additional details.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1322
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1323 string_vector lst (TOTAL_KEYWORDS);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1324
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1325 int j = 0;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1326
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1327 for (int i = 0; i < TOTAL_KEYWORDS; i++)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1328 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1329 std::string tmp = wordlist[i].name;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1330
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1331 if (! (tmp == "set" \|\| tmp == "get"))
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1332 lst[j++] = tmp;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1333 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1334
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1335 lst.resize (j);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1336
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1337 retval = Cell (lst.sort ());
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1338 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1339 else if (argc == 2)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1340 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1341 retval = is_keyword (argv[1]);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1342 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1343 else
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1344 print_usage ();
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1345
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1346 return retval;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1347 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1348
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1349 /*
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1350
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1351 %!assert (iskeyword ("for"))
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1352 %!assert (iskeyword ("fort"), false)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1353 %!assert (iskeyword ("fft"), false)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1354
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1355 */
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1356
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1357 void
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1358 prep_lexer_for_script_file (void)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1359 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1360 BEGIN (SCRIPT_FILE_BEGIN);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1361 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1362
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1363 void
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1364 prep_lexer_for_function_file (void)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1365 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1366 BEGIN (FUNCTION_FILE_BEGIN);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1367 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1368
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1369 // Used to delete trailing white space from tokens.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1370
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1371 static std::string
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1372 strip_trailing_whitespace (char *s)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1373 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1374 std::string retval = s;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1375
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1376 size_t pos = retval.find_first_of (" \t");
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1377
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1378 if (pos != std::string::npos)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1379 retval.resize (pos);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1380
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1381 return retval;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1382 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1383
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1384 static int
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1385 octave_read (char *buf, unsigned max_size)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1386 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1387 static const char * const eol = "\n";
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1388 static std::string input_buf;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1389 static const char *pos = 0;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1390 static size_t chars_left = 0;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1391 static bool eof = false;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1392
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1393 int status = 0;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1394
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1395 if (chars_left == 0)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1396 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1397 pos = 0;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1398
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1399 input_buf = get_user_input (eof);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1400
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1401 chars_left = input_buf.length ();
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1402
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1403 pos = input_buf.c_str ();
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1404 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1405
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1406 if (chars_left > 0)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1407 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1408 size_t len = max_size > chars_left ? chars_left : max_size;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1409 assert (len > 0);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1410
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1411 memcpy (buf, pos, len);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1412
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1413 chars_left -= len;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1414 pos += len;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1415
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1416 // Make sure input ends with a new line character.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1417 if (chars_left == 0 && buf[len-1] != '\n')
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1418 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1419 if (len < max_size)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1420 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1421 // There is enough room to plug the newline character in
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1422 // the buffer.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1423 buf[len++] = '\n';
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1424 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1425 else
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1426 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1427 // There isn't enough room to plug the newline character
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1428 // in the buffer so make sure it is returned on the next
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1429 // octave_read call.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1430 pos = eol;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1431 chars_left = 1;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1432 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1433 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1434
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1435 status = len;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1436 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1437 else
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1438 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1439 status = YY_NULL;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1440
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1441 if (! eof)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1442 YY_FATAL_ERROR ("octave_read () in flex scanner failed");
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1443 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1444
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1445 return status;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1446 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1447
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1448 static void
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1449 display_token (int tok)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1450 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1451 switch (tok)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1452 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1453 case '=': std::cerr << "'='\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1454 case ':': std::cerr << "':'\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1455 case '-': std::cerr << "'-'\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1456 case '+': std::cerr << "'+'\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1457 case '': std::cerr << "''\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1458 case '/': std::cerr << "'/'\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1459 case ADD_EQ: std::cerr << "ADD_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1460 case SUB_EQ: std::cerr << "SUB_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1461 case MUL_EQ: std::cerr << "MUL_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1462 case DIV_EQ: std::cerr << "DIV_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1463 case LEFTDIV_EQ: std::cerr << "LEFTDIV_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1464 case POW_EQ: std::cerr << "POW_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1465 case EMUL_EQ: std::cerr << "EMUL_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1466 case EDIV_EQ: std::cerr << "EDIV_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1467 case ELEFTDIV_EQ: std::cerr << "ELEFTDIV_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1468 case EPOW_EQ: std::cerr << "EPOW_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1469 case AND_EQ: std::cerr << "AND_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1470 case OR_EQ: std::cerr << "OR_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1471 case LSHIFT_EQ: std::cerr << "LSHIFT_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1472 case RSHIFT_EQ: std::cerr << "RSHIFT_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1473 case LSHIFT: std::cerr << "LSHIFT\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1474 case RSHIFT: std::cerr << "RSHIFT\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1475 case EXPR_AND_AND: std::cerr << "EXPR_AND_AND\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1476 case EXPR_OR_OR: std::cerr << "EXPR_OR_OR\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1477 case EXPR_AND: std::cerr << "EXPR_AND\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1478 case EXPR_OR: std::cerr << "EXPR_OR\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1479 case EXPR_NOT: std::cerr << "EXPR_NOT\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1480 case EXPR_LT: std::cerr << "EXPR_LT\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1481 case EXPR_LE: std::cerr << "EXPR_LE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1482 case EXPR_EQ: std::cerr << "EXPR_EQ\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1483 case EXPR_NE: std::cerr << "EXPR_NE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1484 case EXPR_GE: std::cerr << "EXPR_GE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1485 case EXPR_GT: std::cerr << "EXPR_GT\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1486 case LEFTDIV: std::cerr << "LEFTDIV\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1487 case EMUL: std::cerr << "EMUL\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1488 case EDIV: std::cerr << "EDIV\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1489 case ELEFTDIV: std::cerr << "ELEFTDIV\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1490 case EPLUS: std::cerr << "EPLUS\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1491 case EMINUS: std::cerr << "EMINUS\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1492 case QUOTE: std::cerr << "QUOTE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1493 case TRANSPOSE: std::cerr << "TRANSPOSE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1494 case PLUS_PLUS: std::cerr << "PLUS_PLUS\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1495 case MINUS_MINUS: std::cerr << "MINUS_MINUS\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1496 case POW: std::cerr << "POW\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1497 case EPOW: std::cerr << "EPOW\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1498
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1499 case NUM:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1500 case IMAG_NUM:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1501 std::cerr << (tok == NUM ? "NUM" : "IMAG_NUM")
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1502 << " [" << yylval.tok_val->number () << "]\n";
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1503 break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1504
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1505 case STRUCT_ELT:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1506 std::cerr << "STRUCT_ELT [" << yylval.tok_val->text () << "]\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1507
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1508 case NAME:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1509 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1510 symbol_table::symbol_record *sr = yylval.tok_val->sym_rec ();
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1511 std::cerr << "NAME";
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1512 if (sr)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1513 std::cerr << " [" << sr->name () << "]";
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1514 std::cerr << "\n";
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1515 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1516 break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1517
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1518 case END: std::cerr << "END\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1519
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1520 case DQ_STRING:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1521 case SQ_STRING:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1522 std::cerr << (tok == DQ_STRING ? "DQ_STRING" : "SQ_STRING")
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1523 << " [" << yylval.tok_val->text () << "]\n";
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1524 break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1525
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1526 case FOR: std::cerr << "FOR\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1527 case WHILE: std::cerr << "WHILE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1528 case DO: std::cerr << "DO\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1529 case UNTIL: std::cerr << "UNTIL\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1530 case IF: std::cerr << "IF\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1531 case ELSEIF: std::cerr << "ELSEIF\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1532 case ELSE: std::cerr << "ELSE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1533 case SWITCH: std::cerr << "SWITCH\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1534 case CASE: std::cerr << "CASE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1535 case OTHERWISE: std::cerr << "OTHERWISE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1536 case BREAK: std::cerr << "BREAK\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1537 case CONTINUE: std::cerr << "CONTINUE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1538 case FUNC_RET: std::cerr << "FUNC_RET\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1539 case UNWIND: std::cerr << "UNWIND\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1540 case CLEANUP: std::cerr << "CLEANUP\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1541 case TRY: std::cerr << "TRY\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1542 case CATCH: std::cerr << "CATCH\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1543 case GLOBAL: std::cerr << "GLOBAL\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1544 case PERSISTENT: std::cerr << "PERSISTENT\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1545 case FCN_HANDLE: std::cerr << "FCN_HANDLE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1546 case END_OF_INPUT: std::cerr << "END_OF_INPUT\n\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1547 case LEXICAL_ERROR: std::cerr << "LEXICAL_ERROR\n\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1548 case FCN: std::cerr << "FCN\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1549 case CLOSE_BRACE: std::cerr << "CLOSE_BRACE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1550 case SCRIPT_FILE: std::cerr << "SCRIPT_FILE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1551 case FUNCTION_FILE: std::cerr << "FUNCTION_FILE\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1552 case SUPERCLASSREF: std::cerr << "SUPERCLASSREF\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1553 case METAQUERY: std::cerr << "METAQUERY\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1554 case GET: std::cerr << "GET\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1555 case SET: std::cerr << "SET\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1556 case PROPERTIES: std::cerr << "PROPERTIES\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1557 case METHODS: std::cerr << "METHODS\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1558 case EVENTS: std::cerr << "EVENTS\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1559 case CLASSDEF: std::cerr << "CLASSDEF\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1560 case '\n': std::cerr << "\\n\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1561 case '\r': std::cerr << "\\r\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1562 case '\t': std::cerr << "TAB\n"; break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1563 default:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1564 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1565 if (tok < 256)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1566 std::cerr << static_cast<char> (tok) << "\n";
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1567 else
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1568 std::cerr << "UNKNOWN(" << tok << ")\n";
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1569 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1570 break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1571 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1572 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1573
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1574 static void
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1575 display_state (void)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1576 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1577 std::cerr << "S: ";
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1578
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1579 switch (YY_START)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1580 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1581 case INITIAL:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1582 std::cerr << "INITIAL" << std::endl;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1583 break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1584
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1585 case COMMAND_START:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1586 std::cerr << "COMMAND_START" << std::endl;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1587 break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1588
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1589 case MATRIX_START:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1590 std::cerr << "MATRIX_START" << std::endl;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1591 break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1592
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1593 case SCRIPT_FILE_BEGIN:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1594 std::cerr << "SCRIPT_FILE_BEGIN" << std::endl;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1595 break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1596
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1597 case FUNCTION_FILE_BEGIN:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1598 std::cerr << "FUNCTION_FILE_BEGIN" << std::endl;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1599 break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1600
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1601 default:
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1602 std::cerr << "UNKNOWN START STATE!" << std::endl;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1603 break;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1604 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1605 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1606
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1607 static void
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1608 lexer_debug (const char pattern, const char text)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1609 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1610 std::cerr << std::endl;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1611
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1612 display_state ();
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1613
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1614 std::cerr << "P: " << pattern << std::endl;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1615 std::cerr << "T: " << text << std::endl;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1616 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1617
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1618 DEFUN (__display_tokens__, args, nargout,
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1619 "-- texinfo --\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1620 @deftypefn {Built-in Function} {} __display_tokens__ ()\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1621 Query or set the internal variable that determines whether Octave's\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1622 lexer displays tokens as they are read.\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1623 @end deftypefn")
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1624 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1625 return SET_INTERNAL_VARIABLE (display_tokens);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1626 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1627
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1628 DEFUN (__token_count__, , ,
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1629 "-- texinfo --\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1630 @deftypefn {Built-in Function} {} __token_count__ ()\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1631 Number of language tokens processed since Octave startup.\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1632 @end deftypefn")
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1633 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1634 return octave_value (Vtoken_count);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1635 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1636
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1637 DEFUN (__lexer_debug_flag__, args, nargout,
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1638 "-- texinfo --\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1639 @deftypefn {Built-in Function} {@var{old_val} =} __lexer_debug_flag__ (@var{new_val}))\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1640 Undocumented internal function.\n\
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1641 @end deftypefn")
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1642 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1643 octave_value retval;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1644
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1645 retval = set_internal_variable (lexer_debug_flag, args, nargout,
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1646 "__lexer_debug_flag__");
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1647
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1648 return retval;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1649 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1650
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1651 lexical_feedback::~lexical_feedback (void)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1652 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1653 // Clear out the stack of token info used to track line and
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1654 // column numbers.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1655
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1656 while (! token_stack.empty ())
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1657 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1658 delete token_stack.top ();
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1659 token_stack.pop ();
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1660 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1661 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1662
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1663 // GAG.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1664 //
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1665 // If we're reading a matrix and the next character is '[', make sure
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1666 // that we insert a comma ahead of it.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1667
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1668 void
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1669 lexical_feedback::do_comma_insert_check (void)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1670 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1671 bool spc_gobbled = (eat_continuation () != lexical_feedback::NO_WHITESPACE);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1672
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1673 int c = text_yyinput ();
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1674
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1675 xunput (c, yytext);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1676
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1677 if (spc_gobbled)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1678 xunput (' ', yytext);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1679
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1680 do_comma_insert = (! looking_at_object_index.front ()
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1681 && bracketflag && c == '[');
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1682 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1683
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1684 int
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1685 lexical_feedback::text_yyinput (void)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1686 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1687 int c = yyinput ();
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1688
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1689 if (lexer_debug_flag)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1690 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1691 std::cerr << "I: ";
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1692 display_character (c);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1693 std::cerr << std::endl;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1694 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1695
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1696 // Convert CRLF into just LF and single CR into LF.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1697
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1698 if (c == '\r')
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1699 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1700 c = yyinput ();
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1701
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1702 if (lexer_debug_flag)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1703 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1704 std::cerr << "I: ";
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1705 display_character (c);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1706 std::cerr << std::endl;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1707 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1708
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1709 if (c != '\n')
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1710 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1711 xunput (c, yytext);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1712 c = '\n';
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1713 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1714 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1715
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1716 if (c == '\n')
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1717 input_line_number++;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1718
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1719 return c;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1720 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1721
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1722 void
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1723 lexical_feedback::xunput (char c, char *buf)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1724 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1725 if (lexer_debug_flag)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1726 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1727 std::cerr << "U: ";
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1728 display_character (c);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1729 std::cerr << std::endl;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1730 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1731
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1732 if (c == '\n')
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1733 input_line_number--;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1734
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1735 yyunput (c, buf);
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1736 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1737
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1738 // If we read some newlines, we need figure out what column we're
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1739 // really looking at.
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1740
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1741 void
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1742 lexical_feedback::fixup_column_count (char *s)
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1743 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1744 char c;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1745 while ((c = *s++) != '\0')
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1746 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1747 if (c == '\n')
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1748 {
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1749 input_line_number++;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1750 current_input_column = 1;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1751 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1752 else
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1753 current_input_column++;
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1754 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1755 }
73a21ade0b6b * lex.ll: Reorder function definitions. John W. Eaton <jwe@octave.org> parents: 16113 diff changeset	1756
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1757 bool
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1758 lexical_feedback::inside_any_object_index (void)
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1759 {
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1760 bool retval = false;
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1761
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1762 for (std::list<bool>::const_iterator i = looking_at_object_index.begin ();
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1763 i != looking_at_object_index.end (); i++)
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1764 {
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1765 if (*i)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1766 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1767 retval = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1768 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1769 }
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1770 }
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1771
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1772 return retval;
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1773 }
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	1774
4238 a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe] jwe parents: 4237 diff changeset	1775 // Handle keywords. Return -1 if the keyword should be ignored.
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	1776
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1777 int
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1778 lexical_feedback::is_keyword_token (const std::string& s)
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1779 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1780 int l = input_line_number;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1781 int c = current_input_column;
3805 44386b0e53da [project @ 2001-03-01 16:54:31 by jwe] jwe parents: 3802 diff changeset	1782
1823 5cdd59e7579a [project @ 1996-02-01 12:45:05 by jwe] jwe parents: 1755 diff changeset	1783 int len = s.length ();
922 708827b941b4 [project @ 1994-11-14 22:14:13 by jwe] jwe parents: 916 diff changeset	1784
5088 7830f271a53f [project @ 2004-12-01 19:54:45 by jwe] jwe parents: 5035 diff changeset	1785 const octave_kw *kw = octave_kw_hash::in_word_set (s.c_str (), len);
191 b6b4d8c513fe [project @ 1993-10-29 23:41:39 by jwe] jwe parents: 186 diff changeset	1786
1497 48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	1787 if (kw)
143 7849db4b6dbc [project @ 1993-10-04 02:36:45 by jwe] jwe parents: 120 diff changeset	1788 {
1497 48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	1789 yylval.tok_val = 0;
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	1790
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	1791 switch (kw->kw_id)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1792 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1793 case break_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1794 case catch_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1795 case continue_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1796 case else_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1797 case otherwise_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1798 case return_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1799 case unwind_protect_cleanup_kw:
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1800 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1801 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1802
14294 9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1803 case static_kw:
9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1804 if ((reading_fcn_file \|\| reading_script_file
9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1805 \|\| reading_classdef_file)
9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1806 && ! curr_fcn_file_full_name.empty ())
9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1807 warning_with_id ("Octave:deprecated-keyword",
15468 6437fa7263dd use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 15467 diff changeset	1808 "the 'static' keyword is obsolete and will be removed from a future version of Octave; please use 'persistent' instead; near line %d of file '%s'",
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1809 input_line_number,
14294 9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1810 curr_fcn_file_full_name.c_str ());
9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1811 else
9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1812 warning_with_id ("Octave:deprecated-keyword",
15468 6437fa7263dd use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 15467 diff changeset	1813 "the 'static' keyword is obsolete and will be removed from a future version of Octave; please use 'persistent' instead; near line %d",
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1814 input_line_number);
14294 9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1815 // fall through ...
9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1816
9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1817 case persistent_kw:
9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1818 break;
9e3983c8963c deprecate the static keyword John W. Eaton <jwe@octave.org> parents: 14292 diff changeset	1819
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1820 case case_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1821 case elseif_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1822 case global_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1823 case until_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1824 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1825
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1826 case end_kw:
14645 cbc00b587f36 also allow "end" indexing in classdef files John W. Eaton <jwe@octave.org> parents: 14642 diff changeset	1827 if (inside_any_object_index ()
cbc00b587f36 also allow "end" indexing in classdef files John W. Eaton <jwe@octave.org> parents: 14642 diff changeset	1828 \|\| (! reading_classdef_file
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1829 && (defining_func
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1830 && ! (looking_at_return_list
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1831 \|\| parsed_function_name.top ()))))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1832 return 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1833
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1834 yylval.tok_val = new token (token::simple_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1835 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1836 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1837
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1838 case end_try_catch_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1839 yylval.tok_val = new token (token::try_catch_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1840 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1841 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1842
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1843 case end_unwind_protect_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1844 yylval.tok_val = new token (token::unwind_protect_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1845 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1846 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1847
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1848 case endfor_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1849 yylval.tok_val = new token (token::for_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1850 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1851 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1852
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1853 case endfunction_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1854 yylval.tok_val = new token (token::function_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1855 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1856 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1857
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1858 case endif_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1859 yylval.tok_val = new token (token::if_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1860 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1861 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1862
13246 0c69a564f2be additional parfor changes John W. Eaton <jwe@octave.org> parents: 13245 diff changeset	1863 case endparfor_kw:
0c69a564f2be additional parfor changes John W. Eaton <jwe@octave.org> parents: 13245 diff changeset	1864 yylval.tok_val = new token (token::parfor_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1865 at_beginning_of_statement = true;
13246 0c69a564f2be additional parfor changes John W. Eaton <jwe@octave.org> parents: 13245 diff changeset	1866 break;
0c69a564f2be additional parfor changes John W. Eaton <jwe@octave.org> parents: 13245 diff changeset	1867
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1868 case endswitch_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1869 yylval.tok_val = new token (token::switch_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1870 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1871 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1872
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1873 case endwhile_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1874 yylval.tok_val = new token (token::while_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1875 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1876 break;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1877
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1878 case endclassdef_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1879 yylval.tok_val = new token (token::classdef_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1880 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1881 break;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1882
13249 7861a5fd3479 accept enumeration keyword John W. Eaton <jwe@octave.org> parents: 13246 diff changeset	1883 case endenumeration_kw:
7861a5fd3479 accept enumeration keyword John W. Eaton <jwe@octave.org> parents: 13246 diff changeset	1884 yylval.tok_val = new token (token::enumeration_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1885 at_beginning_of_statement = true;
13249 7861a5fd3479 accept enumeration keyword John W. Eaton <jwe@octave.org> parents: 13246 diff changeset	1886 break;
7861a5fd3479 accept enumeration keyword John W. Eaton <jwe@octave.org> parents: 13246 diff changeset	1887
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1888 case endevents_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1889 yylval.tok_val = new token (token::events_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1890 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1891 break;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1892
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1893 case endmethods_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1894 yylval.tok_val = new token (token::methods_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1895 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1896 break;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1897
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1898 case endproperties_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1899 yylval.tok_val = new token (token::properties_end, l, c);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1900 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1901 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1902
13245 027a2186cd90 parfor keyword and infrastructure, but handle parfor as normal for loop for now John W. Eaton <jwe@octave.org> parents: 13237 diff changeset	1903
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1904 case for_kw:
13245 027a2186cd90 parfor keyword and infrastructure, but handle parfor as normal for loop for now John W. Eaton <jwe@octave.org> parents: 13237 diff changeset	1905 case parfor_kw:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1906 case while_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1907 promptflag--;
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1908 looping++;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1909 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1910
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1911 case do_kw:
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1912 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1913 promptflag--;
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1914 looping++;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1915 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1916
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1917 case try_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1918 case unwind_protect_kw:
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1919 at_beginning_of_statement = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1920 promptflag--;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1921 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1922
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1923 case if_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1924 case switch_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1925 promptflag--;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1926 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1927
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1928 case get_kw:
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1929 case set_kw:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1930 // 'get' and 'set' are keywords in classdef method
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1931 // declarations.
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1932 if (! maybe_classdef_get_set_method)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1933 return 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1934 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1935
13249 7861a5fd3479 accept enumeration keyword John W. Eaton <jwe@octave.org> parents: 13246 diff changeset	1936 case enumeration_kw:
7861a5fd3479 accept enumeration keyword John W. Eaton <jwe@octave.org> parents: 13246 diff changeset	1937 case events_kw:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1938 case methods_kw:
13249 7861a5fd3479 accept enumeration keyword John W. Eaton <jwe@octave.org> parents: 13246 diff changeset	1939 case properties_kw:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1940 // 'properties', 'methods' and 'events' are keywords for
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1941 // classdef blocks.
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1942 if (! parsing_classdef)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1943 return 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1944 // fall through ...
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1945
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1946 case classdef_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1947 // 'classdef' is always a keyword.
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1948 promptflag--;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1949 break;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1950
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1951 case function_kw:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1952 promptflag--;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1953
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1954 defining_func++;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1955 parsed_function_name.push (false);
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1956
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1957 if (! (reading_fcn_file \|\| reading_script_file
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1958 \|\| reading_classdef_file))
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1959 input_line_number = 1;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1960 break;
1497 48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	1961
3174 390d5e396682 [project @ 1998-05-04 16:36:17 by jwe] jwe parents: 3165 diff changeset	1962 case magic_file_kw:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1963 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1964 if ((reading_fcn_file \|\| reading_script_file
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1965 \|\| reading_classdef_file)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1966 && ! curr_fcn_file_full_name.empty ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1967 yylval.tok_val = new token (curr_fcn_file_full_name, l, c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1968 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1969 yylval.tok_val = new token ("stdin", l, c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1970 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1971 break;
3174 390d5e396682 [project @ 1998-05-04 16:36:17 by jwe] jwe parents: 3165 diff changeset	1972
390d5e396682 [project @ 1998-05-04 16:36:17 by jwe] jwe parents: 3165 diff changeset	1973 case magic_line_kw:
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1974 yylval.tok_val = new token (static_cast<double> (l), "", l, c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1975 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1976
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1977 default:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1978 panic_impossible ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1979 }
1497 48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	1980
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	1981 if (! yylval.tok_val)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	1982 yylval.tok_val = new token (l, c);
1497 48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	1983
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1984 token_stack.push (yylval.tok_val);
1497 48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	1985
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe] jwe parents: 1489 diff changeset	1986 return kw->tok;
143 7849db4b6dbc [project @ 1993-10-04 02:36:45 by jwe] jwe parents: 120 diff changeset	1987 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1988
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1989 return 0;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1990 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1991
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1992 bool
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1993 lexical_feedback::is_variable (const std::string& name)
2702 7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe] jwe parents: 2621 diff changeset	1994 {
8001 ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context John W. Eaton <jwe@octave.org> parents: 7898 diff changeset	1995 return (symbol_table::is_variable (name)
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1996 \|\| (pending_local_variables.find (name)
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	1997 != pending_local_variables.end ()));
2702 7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe] jwe parents: 2621 diff changeset	1998 }
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe] jwe parents: 2621 diff changeset	1999
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2000 std::string
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2001 lexical_feedback::grab_block_comment (stream_reader& reader, bool& eof)
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2002 {
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2003 std::string buf;
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2004
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2005 bool at_bol = true;
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2006 bool look_for_marker = false;
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2007
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2008 bool warned_incompatible = false;
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2009
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2010 int c = 0;
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2011
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2012 while ((c = reader.getc ()) != EOF)
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2013 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2014 current_input_column++;
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2015
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2016 if (look_for_marker)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2017 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2018 at_bol = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2019 look_for_marker = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2020
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2021 if (c == '{' \|\| c == '}')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2022 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2023 std::string tmp_buf (1, static_cast<char> (c));
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2024
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2025 int type = c;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2026
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2027 bool done = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2028
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2029 while ((c = reader.getc ()) != EOF && ! done)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2030 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2031 current_input_column++;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2032
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2033 switch (c)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2034 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2035 case ' ':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2036 case '\t':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2037 tmp_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2038 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2039
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2040 case '\n':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2041 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2042 current_input_column = 0;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2043 at_bol = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2044 done = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2045
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2046 if (type == '{')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2047 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2048 block_comment_nesting_level++;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2049 promptflag--;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2050 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2051 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2052 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2053 block_comment_nesting_level--;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2054 promptflag++;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2055
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2056 if (block_comment_nesting_level == 0)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2057 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2058 buf += grab_comment_block (reader, true, eof);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2059
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2060 return buf;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2061 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2062 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2063 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2064 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2065
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2066 default:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2067 at_bol = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2068 tmp_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2069 buf += tmp_buf;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2070 done = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2071 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2072 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2073 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2074 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2075 }
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2076
7898 cce16b4e0970 lex.l (grab_block_comment): Use parens around \|\| expression within && expression John W. Eaton <jwe@octave.org> parents: 7728 diff changeset	2077 if (at_bol && (c == '%' \|\| c == '#'))
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2078 {
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2079 if (c == '#' && ! warned_incompatible)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2080 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2081 warned_incompatible = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2082 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2083 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2084
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2085 at_bol = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2086 look_for_marker = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2087 }
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2088 else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2089 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2090 buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2091
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2092 if (c == '\n')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2093 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2094 current_input_column = 0;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2095 at_bol = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2096 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2097 }
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2098 }
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2099
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2100 if (c == EOF)
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2101 eof = true;
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2102
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2103 return buf;
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2104 }
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2105
7720 4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2106 std::string
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2107 lexical_feedback::grab_comment_block (stream_reader& reader, bool at_bol,
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2108 bool& eof)
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2109 {
4426 51a0dcde8778 [project @ 2003-06-13 19:16:37 by jwe] jwe parents: 4410 diff changeset	2110 std::string buf;
1019 7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe] jwe parents: 1009 diff changeset	2111
7720 4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2112 // TRUE means we are at the beginning of a comment block.
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2113 bool begin_comment = false;
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2114
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2115 // TRUE means we are currently reading a comment block.
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2116 bool in_comment = false;
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2117
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2118 bool warned_incompatible = false;
3665 0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2119
1019 7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe] jwe parents: 1009 diff changeset	2120 int c = 0;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2121
7720 4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2122 while ((c = reader.getc ()) != EOF)
1019 7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe] jwe parents: 1009 diff changeset	2123 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2124 current_input_column++;
7720 4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2125
2300 9484969866d2 [project @ 1996-06-24 07:13:26 by jwe] jwe parents: 2200 diff changeset	2126 if (begin_comment)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2127 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2128 if (c == '%' \|\| c == '#')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2129 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2130 at_bol = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2131 continue;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2132 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2133 else if (at_bol && c == '{')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2134 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2135 std::string tmp_buf (1, static_cast<char> (c));
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2136
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2137 bool done = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2138
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2139 while ((c = reader.getc ()) != EOF && ! done)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2140 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2141 current_input_column++;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2142
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2143 switch (c)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2144 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2145 case ' ':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2146 case '\t':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2147 tmp_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2148 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2149
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2150 case '\n':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2151 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2152 current_input_column = 0;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2153 at_bol = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2154 done = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2155
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2156 block_comment_nesting_level++;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2157 promptflag--;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2158
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2159 buf += grab_block_comment (reader, eof);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2160
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2161 in_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2162
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2163 if (eof)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2164 goto done;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2165 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2166 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2167
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2168 default:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2169 at_bol = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2170 tmp_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2171 buf += tmp_buf;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2172 done = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2173 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2174 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2175 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2176 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2177 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2178 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2179 at_bol = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2180 begin_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2181 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2182 }
2300 9484969866d2 [project @ 1996-06-24 07:13:26 by jwe] jwe parents: 2200 diff changeset	2183
1019 7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe] jwe parents: 1009 diff changeset	2184 if (in_comment)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2185 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2186 buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2187
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2188 if (c == '\n')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2189 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2190 at_bol = true;
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2191 current_input_column = 0;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2192 in_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2193
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2194 // FIXME -- bailing out here prevents things like
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2195 //
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2196 // octave> # comment
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2197 // octave> x = 1
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2198 //
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2199 // from failing at the command line, while still
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2200 // allowing blocks of comments to be grabbed properly
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2201 // for function doc strings. But only the first line of
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2202 // a mult-line doc string will be picked up for
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2203 // functions defined on the command line. We need a
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2204 // better way of collecting these comments...
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2205 if (! (reading_fcn_file \|\| reading_script_file))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2206 goto done;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2207 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2208 }
1019 7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe] jwe parents: 1009 diff changeset	2209 else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2210 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2211 switch (c)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2212 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2213 case ' ':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2214 case '\t':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2215 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2216
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2217 case '#':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2218 if (! warned_incompatible)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2219 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2220 warned_incompatible = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2221 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2222 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2223 // fall through...
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2224
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2225 case '%':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2226 in_comment = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2227 begin_comment = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2228 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2229
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2230 default:
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2231 current_input_column--;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2232 reader.ungetc (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2233 goto done;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2234 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2235 }
1019 7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe] jwe parents: 1009 diff changeset	2236 }
991 18be848f10a9 [project @ 1994-12-15 06:06:46 by jwe] jwe parents: 985 diff changeset	2237
1019 7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe] jwe parents: 1009 diff changeset	2238 done:
991 18be848f10a9 [project @ 1994-12-15 06:06:46 by jwe] jwe parents: 985 diff changeset	2239
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2240 if (c == EOF)
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2241 eof = true;
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2242
4426 51a0dcde8778 [project @ 2003-06-13 19:16:37 by jwe] jwe parents: 4410 diff changeset	2243 return buf;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2244 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2245
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2246 int
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2247 lexical_feedback::process_comment (bool start_in_block, bool& eof)
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2248 {
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2249 eof = false;
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2250
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2251 std::string help_txt;
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2252
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2253 if (! help_buf.empty ())
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2254 help_txt = help_buf.top ();
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2255
7720 4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2256 flex_stream_reader flex_reader (yytext);
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2257
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2258 // process_comment is only supposed to be called when we are not
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2259 // initially looking at a block comment.
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2260
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2261 std::string txt = start_in_block
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2262 ? grab_block_comment (flex_reader, eof)
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2263 : grab_comment_block (flex_reader, false, eof);
7720 4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2264
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2265 if (lexer_debug_flag)
8536 de1b944d5306 lex.l: finish previous change John W. Eaton <jwe@octave.org> parents: 8535 diff changeset	2266 std::cerr << "C: " << txt << std::endl;
8535 75e6ab186761 lexer debugging functions John W. Eaton <jwe@octave.org> parents: 8504 diff changeset	2267
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2268 if (help_txt.empty () && nesting_level.none ())
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2269 {
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2270 if (! help_buf.empty ())
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2271 help_buf.pop ();
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2272
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2273 help_buf.push (txt);
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2274 }
7720 4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2275
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	2276 octave_comment_buffer::append (txt);
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2277
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2278 current_input_column = 1;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2279 quote_is_transpose = false;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2280 convert_spaces_to_comma = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2281 at_beginning_of_statement = true;
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2282
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2283 if (YY_START == COMMAND_START)
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2284 BEGIN (INITIAL);
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2285
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2286 if (nesting_level.none ())
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	2287 return '\n';
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2288 else if (nesting_level.is_bracket_or_brace ())
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2289 return ';';
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2290 else
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2291 return 0;
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2292 }
5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	2293
3263 7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe] jwe parents: 3258 diff changeset	2294 // Recognize separators. If the separator is a CRLF pair, it is
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe] jwe parents: 3258 diff changeset	2295 // replaced by a single LF.
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe] jwe parents: 3258 diff changeset	2296
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2297 bool
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2298 lexical_feedback::next_token_is_sep_op (void)
3263 7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe] jwe parents: 3258 diff changeset	2299 {
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe] jwe parents: 3258 diff changeset	2300 bool retval = false;
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe] jwe parents: 3258 diff changeset	2301
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2302 int c = text_yyinput ();
13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2303
13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2304 retval = match_any (c, ",;\n]");
13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2305
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	2306 xunput (c, yytext);
3263 7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe] jwe parents: 3258 diff changeset	2307
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe] jwe parents: 3258 diff changeset	2308 return retval;
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe] jwe parents: 3258 diff changeset	2309 }
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe] jwe parents: 3258 diff changeset	2310
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	2311 // Try to determine if the next token should be treated as a postfix
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	2312 // unary operator. This is ugly, but it seems to do the right thing.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	2313
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2314 bool
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2315 lexical_feedback::next_token_is_postfix_unary_op (bool spc_prev)
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2316 {
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2856 diff changeset	2317 bool un_op = false;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2318
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2319 int c0 = text_yyinput ();
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2320
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2321 if (c0 == '\'' && ! spc_prev)
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2322 {
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2323 un_op = true;
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2324 }
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2325 else if (c0 == '.')
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2326 {
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2327 int c1 = text_yyinput ();
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2328 un_op = (c1 == '\'');
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	2329 xunput (c1, yytext);
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2330 }
4613 d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4612 diff changeset	2331 else if (c0 == '+')
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4612 diff changeset	2332 {
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2333 int c1 = text_yyinput ();
4613 d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4612 diff changeset	2334 un_op = (c1 == '+');
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	2335 xunput (c1, yytext);
4613 d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4612 diff changeset	2336 }
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4612 diff changeset	2337 else if (c0 == '-')
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4612 diff changeset	2338 {
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2339 int c1 = text_yyinput ();
4613 d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4612 diff changeset	2340 un_op = (c1 == '-');
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	2341 xunput (c1, yytext);
4613 d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4612 diff changeset	2342 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2343
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	2344 xunput (c0, yytext);
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2345
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2346 return un_op;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2347 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2348
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	2349 // Try to determine if the next token should be treated as a binary
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2350 // operator.
1521 b3e4ca4f75a0 [project @ 1995-10-04 05:10:36 by jwe] jwe parents: 1520 diff changeset	2351 //
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2352 // This kluge exists because whitespace is not always ignored inside
3774 de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2353 // the square brackets that are used to create matrix objects (though
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2354 // spacing only really matters in the cases that can be interpreted
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2355 // either as binary ops or prefix unary ops: currently just +, -).
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2356 //
3779 3001e15555e9 [project @ 2001-02-07 04:47:51 by jwe] jwe parents: 3774 diff changeset	2357 // Note that a line continuation directly following a + or - operator
3001e15555e9 [project @ 2001-02-07 04:47:51 by jwe] jwe parents: 3774 diff changeset	2358 // (e.g., the characters '[' 'a' ' ' '+' '\' LFD 'b' ']') will be
3001e15555e9 [project @ 2001-02-07 04:47:51 by jwe] jwe parents: 3774 diff changeset	2359 // parsed as a binary operator.
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	2360
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2361 bool
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2362 lexical_feedback::next_token_is_bin_op (bool spc_prev)
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2363 {
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2856 diff changeset	2364 bool bin_op = false;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2365
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2366 int c0 = text_yyinput ();
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2367
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2368 switch (c0)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2369 {
777 a2f9d3fd720c [project @ 1994-10-07 14:01:53 by jwe] jwe parents: 767 diff changeset	2370 case '+':
a2f9d3fd720c [project @ 1994-10-07 14:01:53 by jwe] jwe parents: 767 diff changeset	2371 case '-':
3774 de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2372 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2373 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2374
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2375 switch (c1)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2376 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2377 case '+':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2378 case '-':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2379 // Unary ops, spacing doesn't matter.
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2380 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2381
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2382 case '=':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2383 // Binary ops, spacing doesn't matter.
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2384 bin_op = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2385 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2386
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2387 default:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2388 // Could be either, spacing matters.
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2389 bin_op = looks_like_bin_op (spc_prev, c1);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2390 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2391 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2392
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2393 xunput (c1, yytext);
3774 de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2394 }
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2395 break;
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2396
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2397 case ':':
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2398 case '/':
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2399 case '\\':
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2400 case '^':
3774 de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2401 // Always a binary op (may also include /=, \=, and ^=).
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2402 bin_op = true;
1276 cbdf7db98554 [project @ 1995-04-24 15:31:24 by jwe] jwe parents: 1273 diff changeset	2403 break;
cbdf7db98554 [project @ 1995-04-24 15:31:24 by jwe] jwe parents: 1273 diff changeset	2404
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2405 // .+ .- ./ .\ .^ .* .**
1554 b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe] jwe parents: 1521 diff changeset	2406 case '.':
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe] jwe parents: 1521 diff changeset	2407 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2408 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2409
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2410 if (match_any (c1, "+-/\\^*"))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2411 // Always a binary op (may also include .+=, .-=, ./=, ...).
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2412 bin_op = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2413 else if (! isdigit (c1) && c1 != ' ' && c1 != '\t' && c1 != '.')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2414 // A structure element reference is a binary op.
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2415 bin_op = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2416
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2417 xunput (c1, yytext);
1554 b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe] jwe parents: 1521 diff changeset	2418 }
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe] jwe parents: 1521 diff changeset	2419 break;
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe] jwe parents: 1521 diff changeset	2420
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2421 // = == & && \| \|\| * **
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2422 case '=':
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2423 case '&':
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2424 case '\|':
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2425 case '*':
3774 de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2426 // Always a binary op (may also include ==, &&, \|\|, **).
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2427 bin_op = true;
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2428 break;
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2429
3774 de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2430 // < <= <> > >=
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2431 case '<':
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2432 case '>':
3774 de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2433 // Always a binary op (may also include <=, <>, >=).
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2434 bin_op = true;
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2435 break;
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2436
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe] jwe parents: 3698 diff changeset	2437 // ~= !=
777 a2f9d3fd720c [project @ 1994-10-07 14:01:53 by jwe] jwe parents: 767 diff changeset	2438 case '~':
a2f9d3fd720c [project @ 1994-10-07 14:01:53 by jwe] jwe parents: 767 diff changeset	2439 case '!':
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2440 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2441 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2442
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2443 // ~ and ! can be unary ops, so require following =.
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2444 if (c1 == '=')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2445 bin_op = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2446
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2447 xunput (c1, yytext);
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	2448 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2449 break;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2450
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2451 default:
1276 cbdf7db98554 [project @ 1995-04-24 15:31:24 by jwe] jwe parents: 1273 diff changeset	2452 break;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2453 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2454
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	2455 xunput (c0, yytext);
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2456
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2457 return bin_op;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2458 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2459
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2460 // FIXME -- we need to handle block comments here.
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2461
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2462 void
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2463 lexical_feedback::scan_for_comments (const char *text)
3665 0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2464 {
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2465 std::string comment_buf;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2466
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2467 bool in_comment = false;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2468 bool beginning_of_comment = false;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2469
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2470 int len = strlen (text);
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2471 int i = 0;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2472
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2473 while (i < len)
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2474 {
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2475 char c = text[i++];
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2476
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2477 switch (c)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2478 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2479 case '%':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2480 case '#':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2481 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2482 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2483 if (! beginning_of_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2484 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2485 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2486 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2487 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2488 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2489 in_comment = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2490 beginning_of_comment = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2491 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2492 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2493
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2494 case '\n':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2495 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2496 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2497 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2498 octave_comment_buffer::append (comment_buf);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2499 comment_buf.resize (0);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2500 in_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2501 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2502 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2503 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2504
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2505 default:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2506 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2507 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2508 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2509 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2510 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2511 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2512 }
3665 0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2513 }
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2514
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2515 if (! comment_buf.empty ())
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2516 octave_comment_buffer::append (comment_buf);
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2517 }
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2518
1001 641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2519 // Discard whitespace, including comments and continuations.
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2520
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2521 // FIXME -- we need to handle block comments here.
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2522
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2523 int
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2524 lexical_feedback::eat_whitespace (void)
975 e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	2525 {
16106 031117f4db7c use enum for values returned by eat_continuation and eat_whitespace John W. Eaton <jwe@octave.org> parents: 16105 diff changeset	2526 int retval = lexical_feedback::NO_WHITESPACE;
3665 0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2527
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2528 std::string comment_buf;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2529
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2856 diff changeset	2530 bool in_comment = false;
3665 0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2531 bool beginning_of_comment = false;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2532
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2533 int c = 0;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2534
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2535 while ((c = text_yyinput ()) != EOF)
975 e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	2536 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2537 current_input_column++;
975 e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	2538
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	2539 switch (c)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2540 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2541 case ' ':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2542 case '\t':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2543 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2544 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2545 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2546 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2547 }
16106 031117f4db7c use enum for values returned by eat_continuation and eat_whitespace John W. Eaton <jwe@octave.org> parents: 16105 diff changeset	2548 retval \|= lexical_feedback::SPACE_OR_TAB;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2549 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2550
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2551 case '\n':
16106 031117f4db7c use enum for values returned by eat_continuation and eat_whitespace John W. Eaton <jwe@octave.org> parents: 16105 diff changeset	2552 retval \|= lexical_feedback::NEWLINE;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2553 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2554 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2555 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2556 octave_comment_buffer::append (comment_buf);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2557 comment_buf.resize (0);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2558 in_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2559 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2560 }
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2561 current_input_column = 0;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2562 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2563
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2564 case '#':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2565 case '%':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2566 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2567 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2568 if (! beginning_of_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2569 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2570 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2571 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2572 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2573 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2574 in_comment = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2575 beginning_of_comment = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2576 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2577 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2578
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2579 case '.':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2580 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2581 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2582 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2583 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2584 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2585 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2586 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2587 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2588 if (have_ellipsis_continuation ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2589 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2590 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2591 goto done;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2592 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2593
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2594 case '\\':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2595 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2596 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2597 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2598 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2599 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2600 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2601 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2602 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2603 if (have_continuation ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2604 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2605 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2606 goto done;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2607 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2608
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2609 default:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2610 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2611 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2612 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2613 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2614 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2615 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2616 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2617 goto done;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2618 }
975 e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	2619 }
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	2620
3665 0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2621 if (! comment_buf.empty ())
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2622 octave_comment_buffer::append (comment_buf);
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2623
975 e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	2624 done:
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	2625 xunput (c, yytext);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2626 current_input_column--;
1001 641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2627 return retval;
975 e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	2628 }
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe] jwe parents: 973 diff changeset	2629
3220 3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2630 static inline bool
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2631 looks_like_hex (const char *s, int len)
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2632 {
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2633 return (len > 2 && s[0] == '0' && (s[1] == 'x' \|\| s[1] == 'X'));
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2634 }
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2635
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2636 void
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2637 lexical_feedback::handle_number (void)
972 3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe] jwe parents: 971 diff changeset	2638 {
3220 3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2639 double value = 0.0;
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2640 int nread = 0;
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2641
3598 0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2642 if (looks_like_hex (yytext, strlen (yytext)))
3220 3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2643 {
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2644 unsigned long ival;
3598 0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2645
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2646 nread = sscanf (yytext, "%lx", &ival);
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2647
3220 3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2648 value = static_cast<double> (ival);
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2649 }
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe] jwe parents: 3208 diff changeset	2650 else
3598 0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2651 {
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2652 char *tmp = strsave (yytext);
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2653
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2654 char *idx = strpbrk (tmp, "Dd");
2621 337a09dd1c06 [project @ 1997-01-24 21:49:41 by jwe] jwe parents: 2614 diff changeset	2655
3598 0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2656 if (idx)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2657 *idx = 'e';
3598 0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2658
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2659 nread = sscanf (tmp, "%lf", &value);
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2660
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2661 delete [] tmp;
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe] jwe parents: 3575 diff changeset	2662 }
972 3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe] jwe parents: 971 diff changeset	2663
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1823 diff changeset	2664 // If yytext doesn't contain a valid number, we are in deep doo doo.
985 4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe] jwe parents: 975 diff changeset	2665
972 3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe] jwe parents: 971 diff changeset	2666 assert (nread == 1);
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe] jwe parents: 971 diff changeset	2667
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2668 quote_is_transpose = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2669 convert_spaces_to_comma = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2670 looking_for_object_index = false;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2671 at_beginning_of_statement = false;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2672
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2673 yylval.tok_val = new token (value, yytext, input_line_number,
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2674 current_input_column);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2675
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2676 token_stack.push (yylval.tok_val);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2677
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2678 current_input_column += yyleng;
972 3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe] jwe parents: 971 diff changeset	2679
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe] jwe parents: 971 diff changeset	2680 do_comma_insert_check ();
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe] jwe parents: 971 diff changeset	2681 }
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe] jwe parents: 971 diff changeset	2682
1001 641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2683 // We have seen a backslash and need to find out if it should be
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2684 // treated as a continuation character. If so, this eats it, up to
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2685 // and including the new line character.
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2686 //
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2687 // Match whitespace only, followed by a comment character or newline.
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2688 // Once a comment character is found, discard all input until newline.
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2689 // If non-whitespace characters are found before comment
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2690 // characters, return 0. Otherwise, return 1.
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2691
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2692 // FIXME -- we need to handle block comments here.
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7722 diff changeset	2693
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2694 bool
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2695 lexical_feedback::have_continuation (bool trailing_comments_ok)
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2696 {
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5615 diff changeset	2697 std::ostringstream buf;
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2698
3665 0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2699 std::string comment_buf;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2700
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2856 diff changeset	2701 bool in_comment = false;
3665 0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2702 bool beginning_of_comment = false;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2703
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2704 int c = 0;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2705
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2706 while ((c = text_yyinput ()) != EOF)
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2707 {
3802 4f1a26a730fd [project @ 2001-02-26 20:26:14 by jwe] jwe parents: 3796 diff changeset	2708 buf << static_cast<char> (c);
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2709
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2710 switch (c)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2711 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2712 case ' ':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2713 case '\t':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2714 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2715 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2716 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2717 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2718 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2719 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2720
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2721 case '%':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2722 case '#':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2723 if (trailing_comments_ok)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2724 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2725 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2726 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2727 if (! beginning_of_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2728 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2729 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2730 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2731 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2732 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2733 in_comment = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2734 beginning_of_comment = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2735 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2736 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2737 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2738 goto cleanup;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2739 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2740
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2741 case '\n':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2742 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2743 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2744 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2745 octave_comment_buffer::append (comment_buf);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2746 }
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2747 current_input_column = 0;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2748 promptflag--;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2749 gripe_matlab_incompatible_continuation ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2750 return true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2751
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2752 default:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2753 if (in_comment)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2754 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2755 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2756 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2757 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2758 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2759 goto cleanup;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2760 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2761 }
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2762 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2763
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	2764 xunput (c, yytext);
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2856 diff changeset	2765 return false;
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2766
3096 ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe] jwe parents: 3079 diff changeset	2767 cleanup:
4051 b79da8779a0e [project @ 2002-08-17 19:38:32 by jwe] jwe parents: 4037 diff changeset	2768
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5615 diff changeset	2769 std::string s = buf.str ();
4051 b79da8779a0e [project @ 2002-08-17 19:38:32 by jwe] jwe parents: 4037 diff changeset	2770
b79da8779a0e [project @ 2002-08-17 19:38:32 by jwe] jwe parents: 4037 diff changeset	2771 int len = s.length ();
b79da8779a0e [project @ 2002-08-17 19:38:32 by jwe] jwe parents: 4037 diff changeset	2772 while (len--)
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	2773 xunput (s[len], yytext);
3096 ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe] jwe parents: 3079 diff changeset	2774
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2856 diff changeset	2775 return false;
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2776 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2777
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14161 diff changeset	2778 // We have seen a '.' and need to see if it is the start of a
1001 641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2779 // continuation. If so, this eats it, up to and including the new
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2780 // line character.
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2781
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2782 bool
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2783 lexical_feedback::have_ellipsis_continuation (bool trailing_comments_ok)
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2784 {
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2785 char c1 = text_yyinput ();
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2786 if (c1 == '.')
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2787 {
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2788 char c2 = text_yyinput ();
1091 54abf1b3a8e9 [project @ 1995-02-02 00:30:14 by jwe] jwe parents: 1088 diff changeset	2789 if (c2 == '.' && have_continuation (trailing_comments_ok))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2790 return true;
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2791 else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2792 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2793 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2794 xunput (c1, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2795 }
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2796 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2797 else
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	2798 xunput (c1, yytext);
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2799
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2856 diff changeset	2800 return false;
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2801 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2802
1001 641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2803 // See if we have a continuation line. If so, eat it and the leading
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2804 // whitespace on the next line.
16106 031117f4db7c use enum for values returned by eat_continuation and eat_whitespace John W. Eaton <jwe@octave.org> parents: 16105 diff changeset	2805
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2806 int
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2807 lexical_feedback::eat_continuation (void)
1001 641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2808 {
16106 031117f4db7c use enum for values returned by eat_continuation and eat_whitespace John W. Eaton <jwe@octave.org> parents: 16105 diff changeset	2809 int retval = lexical_feedback::NO_WHITESPACE;
3665 0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2810
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2811 int c = text_yyinput ();
3665 0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe] jwe parents: 3598 diff changeset	2812
1001 641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2813 if ((c == '.' && have_ellipsis_continuation ())
3105 f936c7f5074f [project @ 1997-11-19 04:36:17 by jwe] jwe parents: 3103 diff changeset	2814 \|\| (c == '\\' && have_continuation ()))
1001 641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2815 retval = eat_whitespace ();
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2816 else
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	2817 xunput (c, yytext);
1001 641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2818
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2819 return retval;
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2820 }
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	2821
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2822 int
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2823 lexical_feedback::handle_string (char delim)
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2824 {
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5615 diff changeset	2825 std::ostringstream buf;
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2826
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2827 int bos_line = input_line_number;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2828 int bos_col = current_input_column;
3805 44386b0e53da [project @ 2001-03-01 16:54:31 by jwe] jwe parents: 3802 diff changeset	2829
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2830 int c;
1031 59f5eb2d5eb3 [project @ 1995-01-15 21:11:11 by jwe] jwe parents: 1019 diff changeset	2831 int escape_pending = 0;
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2832
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2833 while ((c = text_yyinput ()) != EOF)
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2834 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2835 current_input_column++;
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2836
3105 f936c7f5074f [project @ 1997-11-19 04:36:17 by jwe] jwe parents: 3103 diff changeset	2837 if (c == '\\')
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2838 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2839 if (delim == '\'' \|\| escape_pending)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2840 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2841 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2842 escape_pending = 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2843 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2844 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2845 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2846 if (have_continuation (false))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2847 escape_pending = 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2848 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2849 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2850 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2851 escape_pending = 1;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2852 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2853 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2854 continue;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2855 }
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2856 else if (c == '.')
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2857 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2858 if (delim == '\'' \|\| ! have_ellipsis_continuation (false))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2859 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2860 }
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2861 else if (c == '\n')
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2862 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2863 error ("unterminated string constant");
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2864 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2865 }
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2866 else if (c == delim)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2867 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2868 if (escape_pending)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2869 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2870 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2871 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2872 c = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2873 if (c == delim)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2874 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2875 buf << static_cast<char> (c);
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2876 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2877 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2878 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2879 std::string s;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2880 xunput (c, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2881
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2882 if (delim == '\'')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2883 s = buf.str ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2884 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2885 s = do_string_escapes (buf.str ());
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2886
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2887 quote_is_transpose = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2888 convert_spaces_to_comma = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2889
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2890 yylval.tok_val = new token (s, bos_line, bos_col);
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2891 token_stack.push (yylval.tok_val);
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2892
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2893 if (delim == '"')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2894 gripe_matlab_incompatible ("\" used as string delimiter");
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2895 else if (delim == '\'')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2896 gripe_single_quote_string ();
3400 18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe] jwe parents: 3388 diff changeset	2897
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2898 looking_for_object_index = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2899 at_beginning_of_statement = false;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2900
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2901 return delim == '"' ? DQ_STRING : SQ_STRING;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2902 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2903 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2904 }
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2905 else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2906 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2907 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2908 }
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2909
1031 59f5eb2d5eb3 [project @ 1995-01-15 21:11:11 by jwe] jwe parents: 1019 diff changeset	2910 escape_pending = 0;
973 46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2911 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2912
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2913 return LEXICAL_ERROR;
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2914 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe] jwe parents: 972 diff changeset	2915
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2916 bool
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	2917 lexical_feedback::next_token_is_assign_op (void)
3208 e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2918 {
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2919 bool retval = false;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2920
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	2921 int c0 = text_yyinput ();
3208 e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2922
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2923 switch (c0)
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2924 {
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2925 case '=':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2926 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2927 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2928 xunput (c1, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2929 if (c1 != '=')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2930 retval = true;
3208 e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2931 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2932 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2933
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2934 case '+':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2935 case '-':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2936 case '*':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2937 case '/':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2938 case '\\':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2939 case '&':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2940 case '\|':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2941 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2942 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2943 xunput (c1, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2944 if (c1 == '=')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2945 retval = true;
3208 e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2946 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2947 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2948
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2949 case '.':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2950 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2951 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2952 if (match_any (c1, "+-*/\\"))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2953 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2954 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2955 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2956 if (c2 == '=')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2957 retval = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2958 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2959 xunput (c1, yytext);
3208 e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2960 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2961 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2962
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2963 case '>':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2964 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2965 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2966 if (c1 == '>')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2967 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2968 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2969 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2970 if (c2 == '=')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2971 retval = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2972 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2973 xunput (c1, yytext);
3208 e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2974 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2975 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2976
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2977 case '<':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2978 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2979 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2980 if (c1 == '<')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2981 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2982 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2983 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2984 if (c2 == '=')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2985 retval = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2986 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	2987 xunput (c1, yytext);
3208 e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2988 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2989 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2990
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2991 default:
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2992 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2993 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2994
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	2995 xunput (c0, yytext);
3208 e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2996
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2997 return retval;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2998 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	2999
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3000 bool
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3001 lexical_feedback::next_token_is_index_op (void)
4633 d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3002 {
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	3003 int c = text_yyinput ();
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	3004 xunput (c, yytext);
4633 d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3005 return c == '(' \|\| c == '{';
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3006 }
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3007
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3008 int
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3009 lexical_feedback::handle_close_bracket (bool spc_gobbled, int bracket_type)
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	3010 {
4612 d44675070f1a [project @ 2003-11-14 19:49:56 by jwe] jwe parents: 4608 diff changeset	3011 int retval = bracket_type;
3208 e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	3012
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3013 if (! nesting_level.none ())
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	3014 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3015 nesting_level.remove ();
4613 d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4612 diff changeset	3016
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4612 diff changeset	3017 if (bracket_type == ']')
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3018 bracketflag--;
4613 d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4612 diff changeset	3019 else if (bracket_type == '}')
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3020 braceflag--;
4613 d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe] jwe parents: 4612 diff changeset	3021 else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3022 panic_impossible ();
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	3023 }
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	3024
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3025 if (bracketflag == 0 && braceflag == 0)
4323 0990c9b77109 [project @ 2003-02-14 07:36:26 by jwe] jwe parents: 4318 diff changeset	3026 BEGIN (INITIAL);
1001 641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	3027
4608 22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	3028 if (bracket_type == ']'
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe] jwe parents: 4476 diff changeset	3029 && next_token_is_assign_op ()
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3030 && ! looking_at_return_list)
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	3031 {
3208 e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	3032 retval = CLOSE_BRACE;
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	3033 }
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3034 else if ((bracketflag \|\| braceflag)
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3035 && convert_spaces_to_comma
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3036 && (nesting_level.is_bracket ()
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3037 \|\| (nesting_level.is_brace ()
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3038 && ! looking_at_object_index.front ())))
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	3039 {
4633 d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3040 bool index_op = next_token_is_index_op ();
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3041
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3042 // Don't insert comma if we are looking at something like
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3043 //
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3044 // [x{i}{j}] or [x{i}(j)]
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3045 //
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3046 // but do if we are looking at
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3047 //
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3048 // [x{i} {j}] or [x{i} (j)]
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3049
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe] jwe parents: 4613 diff changeset	3050 if (spc_gobbled \|\| ! (bracket_type == '}' && index_op))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3051 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3052 bool bin_op = next_token_is_bin_op (spc_gobbled);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3053
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3054 bool postfix_un_op = next_token_is_postfix_unary_op (spc_gobbled);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3055
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3056 bool sep_op = next_token_is_sep_op ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3057
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3058 if (! (postfix_un_op \|\| bin_op \|\| sep_op))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3059 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3060 maybe_warn_separator_insert (',');
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3061
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3062 xunput (',', yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3063 return retval;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3064 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3065 }
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	3066 }
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	3067
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3068 quote_is_transpose = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3069 convert_spaces_to_comma = true;
3208 e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	3070
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe] jwe parents: 3204 diff changeset	3071 return retval;
971 fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	3072 }
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe] jwe parents: 970 diff changeset	3073
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3074 void
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3075 lexical_feedback::maybe_unput_comma (int spc_gobbled)
1072 0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe] jwe parents: 1060 diff changeset	3076 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3077 if (nesting_level.is_bracket ()
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3078 \|\| (nesting_level.is_brace ()
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3079 && ! looking_at_object_index.front ()))
1072 0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe] jwe parents: 1060 diff changeset	3080 {
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	3081 int bin_op = next_token_is_bin_op (spc_gobbled);
1072 0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe] jwe parents: 1060 diff changeset	3082
3246 a41cc560087a [project @ 1999-06-19 06:46:20 by jwe] jwe parents: 3238 diff changeset	3083 int postfix_un_op = next_token_is_postfix_unary_op (spc_gobbled);
1072 0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe] jwe parents: 1060 diff changeset	3084
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	3085 int c1 = text_yyinput ();
13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	3086 int c2 = text_yyinput ();
2970 b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe] jwe parents: 2926 diff changeset	3087
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	3088 xunput (c2, yytext);
adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	3089 xunput (c1, yytext);
2970 b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe] jwe parents: 2926 diff changeset	3090
3263 7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe] jwe parents: 3258 diff changeset	3091 int sep_op = next_token_is_sep_op ();
2970 b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe] jwe parents: 2926 diff changeset	3092
1072 0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe] jwe parents: 1060 diff changeset	3093 int dot_op = (c1 == '.'
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3094 && (isalpha (c2) \|\| isspace (c2) \|\| c2 == '_'));
2970 b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe] jwe parents: 2926 diff changeset	3095
3388 42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	3096 if (postfix_un_op \|\| bin_op \|\| sep_op \|\| dot_op)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3097 return;
3388 42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	3098
3985 fa0ae9105656 [project @ 2002-07-11 04:02:00 by jwe] jwe parents: 3974 diff changeset	3099 int index_op = (c1 == '(' \|\| c1 == '{');
3388 42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	3100
4476 b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe] jwe parents: 4426 diff changeset	3101 // If there is no space before the indexing op, we don't insert
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe] jwe parents: 4426 diff changeset	3102 // a comma.
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe] jwe parents: 4426 diff changeset	3103
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe] jwe parents: 4426 diff changeset	3104 if (index_op && ! spc_gobbled)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3105 return;
4476 b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe] jwe parents: 4426 diff changeset	3106
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe] jwe parents: 4426 diff changeset	3107 maybe_warn_separator_insert (',');
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe] jwe parents: 4426 diff changeset	3108
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	3109 xunput (',', yytext);
1072 0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe] jwe parents: 1060 diff changeset	3110 }
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe] jwe parents: 1060 diff changeset	3111 }
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe] jwe parents: 1060 diff changeset	3112
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3113 bool
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3114 lexical_feedback::next_token_can_follow_bin_op (void)
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3115 {
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3116 std::stack<char> buf;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3117
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3118 int c = EOF;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3119
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3120 // Skip whitespace in current statement on current line
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3121 while (true)
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3122 {
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3123 c = text_yyinput ();
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3124
8767 026c6732ec7a lex.l (next_token_can_follow_bin_op): push all characters read on to buffer stack John W. Eaton <jwe@octave.org> parents: 8746 diff changeset	3125 buf.push (c);
026c6732ec7a lex.l (next_token_can_follow_bin_op): push all characters read on to buffer stack John W. Eaton <jwe@octave.org> parents: 8746 diff changeset	3126
026c6732ec7a lex.l (next_token_can_follow_bin_op): push all characters read on to buffer stack John W. Eaton <jwe@octave.org> parents: 8746 diff changeset	3127 if (match_any (c, ",;\n") \|\| (c != ' ' && c != '\t'))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3128 break;
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3129 }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3130
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3131 // Restore input.
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3132 while (! buf.empty ())
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3133 {
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3134 xunput (buf.top (), yytext);
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3135
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3136 buf.pop ();
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3137 }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3138
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3139 return (isalnum (c) \|\| match_any (c, "!\"'(-[_{~"));
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3140 }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3141
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3142 static bool
10052 5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3143 can_be_command (const std::string& tok)
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3144 {
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3145 // Don't allow these names to be treated as commands to avoid
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3146 // surprises when parsing things like "NaN ^2".
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3147
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3148 return ! (tok == "e"
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3149 \|\| tok == "I" \|\| tok == "i"
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3150 \|\| tok == "J" \|\| tok == "j"
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3151 \|\| tok == "Inf" \|\| tok == "inf"
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3152 \|\| tok == "NaN" \|\| tok == "nan");
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3153 }
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3154
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3155 bool
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3156 lexical_feedback::looks_like_command_arg (void)
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3157 {
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3158 bool retval = true;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3159
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3160 int c0 = text_yyinput ();
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3161
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3162 switch (c0)
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3163 {
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3164 // = ==
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3165 case '=':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3166 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3167 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3168
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3169 if (c1 == '=')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3170 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3171 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3172
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3173 if (! match_any (c2, ",;\n") && (c2 == ' ' \|\| c2 == '\t')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3174 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3175 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3176
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3177 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3178 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3179 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3180 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3181
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3182 xunput (c1, yytext);
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3183 }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3184 break;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3185
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3186 case '(':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3187 case '{':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3188 // Indexing.
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3189 retval = false;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3190 break;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3191
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3192 case '\n':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3193 // EOL.
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3194 break;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3195
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3196 case '\'':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3197 case '"':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3198 // Beginning of a character string.
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3199 break;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3200
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3201 // + - ++ -- += -=
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3202 case '+':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3203 case '-':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3204 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3205 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3206
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3207 switch (c1)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3208 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3209 case '\n':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3210 // EOL.
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3211 case '+':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3212 case '-':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3213 // Unary ops, spacing doesn't matter.
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3214 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3215
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3216 case '\t':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3217 case ' ':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3218 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3219 if (next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3220 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3221 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3222 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3223
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3224 case '=':
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3225 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3226 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3227
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3228 if (! match_any (c2, ",;\n") && (c2 == ' ' \|\| c2 == '\t')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3229 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3230 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3231
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3232 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3233 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3234 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3235 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3236
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3237 xunput (c1, yytext);
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3238 }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3239 break;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3240
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3241 case ':':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3242 case '/':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3243 case '\\':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3244 case '^':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3245 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3246 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3247
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3248 if (! match_any (c1, ",;\n") && (c1 == ' ' \|\| c1 == '\t')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3249 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3250 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3251
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3252 xunput (c1, yytext);
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3253 }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3254 break;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3255
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3256 // .+ .- ./ .\ .^ .* .**
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3257 case '.':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3258 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3259 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3260
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3261 if (match_any (c1, "+-/\\^*"))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3262 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3263 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3264
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3265 if (c2 == '=')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3266 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3267 int c3 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3268
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3269 if (! match_any (c3, ",;\n") && (c3 == ' ' \|\| c3 == '\t')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3270 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3271 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3272
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3273 xunput (c3, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3274 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3275 else if (! match_any (c2, ",;\n") && (c2 == ' ' \|\| c2 == '\t')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3276 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3277 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3278
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3279 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3280 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3281 else if (! match_any (c1, ",;\n")
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3282 && (! isdigit (c1) && c1 != ' ' && c1 != '\t'
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3283 && c1 != '.'))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3284 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3285 // Structure reference. FIXME -- is this a complete check?
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3286
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3287 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3288 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3289
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3290 xunput (c1, yytext);
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3291 }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3292 break;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3293
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3294 // & && \| \|\| * **
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3295 case '&':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3296 case '\|':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3297 case '*':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3298 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3299 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3300
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3301 if (c1 == c0)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3302 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3303 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3304
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3305 if (! match_any (c2, ",;\n") && (c2 == ' ' \|\| c2 == '\t')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3306 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3307 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3308
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3309 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3310 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3311 else if (! match_any (c1, ",;\n") && (c1 == ' ' \|\| c1 == '\t')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3312 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3313 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3314
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3315 xunput (c1, yytext);
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3316 }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3317 break;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3318
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3319 // < <= > >=
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3320 case '<':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3321 case '>':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3322 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3323 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3324
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3325 if (c1 == '=')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3326 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3327 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3328
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3329 if (! match_any (c2, ",;\n") && (c2 == ' ' \|\| c2 == '\t')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3330 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3331 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3332
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3333 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3334 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3335 else if (! match_any (c1, ",;\n") && (c1 == ' ' \|\| c1 == '\t')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3336 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3337 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3338
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3339 xunput (c1, yytext);
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3340 }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3341 break;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3342
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3343 // ~= !=
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3344 case '~':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3345 case '!':
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3346 {
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3347 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3348
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3349 // ~ and ! can be unary ops, so require following =.
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3350 if (c1 == '=')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3351 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3352 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3353
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3354 if (! match_any (c2, ",;\n") && (c2 == ' ' \|\| c2 == '\t')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3355 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3356 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3357
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3358 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3359 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3360 else if (! match_any (c1, ",;\n") && (c1 == ' ' \|\| c1 == '\t')
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3361 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3362 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3363
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3364 xunput (c1, yytext);
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3365 }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3366 break;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3367
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3368 default:
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3369 break;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3370 }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3371
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3372 xunput (c0, yytext);
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3373
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3374 return retval;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3375 }
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3376
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3377 int
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3378 lexical_feedback::handle_superclass_identifier (void)
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3379 {
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3380 eat_continuation ();
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3381
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3382 std::string pkg;
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3383 std::string meth = strip_trailing_whitespace (yytext);
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3384 size_t pos = meth.find ("@");
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3385 std::string cls = meth.substr (pos).substr (1);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3386 meth = meth.substr (0, pos - 1);
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3387
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3388 pos = cls.find (".");
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3389 if (pos != std::string::npos)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3390 {
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3391 pkg = cls.substr (pos).substr (1);
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3392 cls = cls.substr (0, pos - 1);
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3393 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3394
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3395 int kw_token = (is_keyword_token (meth) \|\| is_keyword_token (cls)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3396 \|\| is_keyword_token (pkg));
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3397 if (kw_token)
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3398 {
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3399 error ("method, class and package names may not be keywords");
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3400 return LEXICAL_ERROR;
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3401 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3402
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3403 yylval.tok_val
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3404 = new token (meth.empty () ? 0 : &(symbol_table::insert (meth)),
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3405 cls.empty () ? 0 : &(symbol_table::insert (cls)),
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3406 pkg.empty () ? 0 : &(symbol_table::insert (pkg)),
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3407 input_line_number,
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3408 current_input_column);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3409 token_stack.push (yylval.tok_val);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3410
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3411 convert_spaces_to_comma = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3412 current_input_column += yyleng;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3413
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3414 return SUPERCLASSREF;
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3415 }
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3416
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3417 int
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3418 lexical_feedback::handle_meta_identifier (void)
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3419 {
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3420 eat_continuation ();
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3421
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3422 std::string pkg;
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3423 std::string cls = strip_trailing_whitespace (yytext).substr (1);
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3424 size_t pos = cls.find (".");
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3425
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3426 if (pos != std::string::npos)
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3427 {
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3428 pkg = cls.substr (pos).substr (1);
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3429 cls = cls.substr (0, pos - 1);
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3430 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3431
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3432 int kw_token = is_keyword_token (cls) \|\| is_keyword_token (pkg);
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3433 if (kw_token)
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3434 {
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3435 error ("class and package names may not be keywords");
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3436 return LEXICAL_ERROR;
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3437 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3438
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3439 yylval.tok_val
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3440 = new token (cls.empty () ? 0 : &(symbol_table::insert (cls)),
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3441 pkg.empty () ? 0 : &(symbol_table::insert (pkg)),
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3442 input_line_number,
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3443 current_input_column);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3444
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3445 token_stack.push (yylval.tok_val);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3446
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3447 convert_spaces_to_comma = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3448 current_input_column += yyleng;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3449
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3450 return METAQUERY;
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3451 }
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	3452
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	3453 // Figure out exactly what kind of token to return when we have seen
4238 a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe] jwe parents: 4237 diff changeset	3454 // an identifier. Handles keywords. Return -1 if the identifier
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe] jwe parents: 4237 diff changeset	3455 // should be ignored.
767 42731861ee09 [project @ 1994-10-05 21:26:54 by jwe] jwe parents: 747 diff changeset	3456
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3457 int
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3458 lexical_feedback::handle_identifier (void)
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3459 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3460 bool at_bos = at_beginning_of_statement;
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3461
3974 e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe] jwe parents: 3973 diff changeset	3462 std::string tok = strip_trailing_whitespace (yytext);
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe] jwe parents: 3973 diff changeset	3463
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe] jwe parents: 3973 diff changeset	3464 int c = yytext[yyleng-1];
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe] jwe parents: 3973 diff changeset	3465
16106 031117f4db7c use enum for values returned by eat_continuation and eat_whitespace John W. Eaton <jwe@octave.org> parents: 16105 diff changeset	3466 bool cont_is_spc = (eat_continuation () != lexical_feedback::NO_WHITESPACE);
3974 e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe] jwe parents: 3973 diff changeset	3467
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe] jwe parents: 3973 diff changeset	3468 int spc_gobbled = (cont_is_spc \|\| c == ' ' \|\| c == '\t');
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe] jwe parents: 3973 diff changeset	3469
2970 b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe] jwe parents: 2926 diff changeset	3470 // If we are expecting a structure element, avoid recognizing
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe] jwe parents: 2926 diff changeset	3471 // keywords and other special names and return STRUCT_ELT, which is
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe] jwe parents: 2926 diff changeset	3472 // a string that is also a valid identifier. But first, we have to
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe] jwe parents: 2926 diff changeset	3473 // decide whether to insert a comma.
747 6182de8cb3b7 [project @ 1994-09-30 15:09:36 by jwe] jwe parents: 661 diff changeset	3474
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3475 if (looking_at_indirect_ref)
1072 0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe] jwe parents: 1060 diff changeset	3476 {
2970 b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe] jwe parents: 2926 diff changeset	3477 do_comma_insert_check ();
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe] jwe parents: 2926 diff changeset	3478
1072 0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe] jwe parents: 1060 diff changeset	3479 maybe_unput_comma (spc_gobbled);
2819 ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe] jwe parents: 2804 diff changeset	3480
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3481 yylval.tok_val = new token (tok, input_line_number,
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3482 current_input_column);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3483
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3484 token_stack.push (yylval.tok_val);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3485
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3486 quote_is_transpose = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3487 convert_spaces_to_comma = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3488 looking_for_object_index = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3489
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3490 current_input_column += yyleng;
2819 ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe] jwe parents: 2804 diff changeset	3491
2970 b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe] jwe parents: 2926 diff changeset	3492 return STRUCT_ELT;
1072 0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe] jwe parents: 1060 diff changeset	3493 }
747 6182de8cb3b7 [project @ 1994-09-30 15:09:36 by jwe] jwe parents: 661 diff changeset	3494
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3495 at_beginning_of_statement = false;
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3496
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3497 // The is_keyword_token may reset
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3498 // at_beginning_of_statement. For example, if it sees
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3499 // an else token, then the next token is at the beginning of a
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3500 // statement.
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3501
4930 bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe] jwe parents: 4923 diff changeset	3502 int kw_token = is_keyword_token (tok);
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe] jwe parents: 4923 diff changeset	3503
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3504 // If we found a keyword token, then the beginning_of_statement flag
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3505 // is already set. Otherwise, we won't be at the beginning of a
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3506 // statement.
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3507
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3508 if (looking_at_function_handle)
4930 bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe] jwe parents: 4923 diff changeset	3509 {
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe] jwe parents: 4923 diff changeset	3510 if (kw_token)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3511 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3512 error ("function handles may not refer to keywords");
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3513
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3514 return LEXICAL_ERROR;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3515 }
4930 bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe] jwe parents: 4923 diff changeset	3516 else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3517 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3518 yylval.tok_val = new token (tok, input_line_number,
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3519 current_input_column);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3520
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3521 token_stack.push (yylval.tok_val);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3522
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3523 current_input_column += yyleng;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3524 quote_is_transpose = false;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3525 convert_spaces_to_comma = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3526 looking_for_object_index = true;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3527
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3528 return FCN_HANDLE;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3529 }
4930 bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe] jwe parents: 4923 diff changeset	3530 }
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe] jwe parents: 4923 diff changeset	3531
5102 b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe] jwe parents: 5088 diff changeset	3532 // If we have a regular keyword, return it.
7722 c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	3533 // Keywords can be followed by identifiers.
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3534
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3535 if (kw_token)
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3536 {
7722 c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	3537 if (kw_token >= 0)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3538 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3539 current_input_column += yyleng;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3540 quote_is_transpose = false;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3541 convert_spaces_to_comma = true;
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3542 looking_for_object_index = false;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3543 }
7722 c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	3544
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	3545 return kw_token;
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3546 }
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3547
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1823 diff changeset	3548 // See if we have a plot keyword (title, using, with, or clear).
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3549
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	3550 int c1 = text_yyinput ();
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3428 diff changeset	3551
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3428 diff changeset	3552 bool next_tok_is_eq = false;
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3428 diff changeset	3553 if (c1 == '=')
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3428 diff changeset	3554 {
7728 13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	3555 int c2 = text_yyinput ();
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	3556 xunput (c2, yytext);
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3428 diff changeset	3557
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3428 diff changeset	3558 if (c2 != '=')
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3559 next_tok_is_eq = true;
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3428 diff changeset	3560 }
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3428 diff changeset	3561
8447 adab48231a03 make input_line_number work again John W. Eaton <jwe@octave.org> parents: 8312 diff changeset	3562 xunput (c1, yytext);
1001 641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe] jwe parents: 991 diff changeset	3563
2702 7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe] jwe parents: 2621 diff changeset	3564 // Kluge alert.
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe] jwe parents: 2621 diff changeset	3565 //
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe] jwe parents: 2621 diff changeset	3566 // If we are looking at a text style function, set up to gobble its
2745 76411ce43c05 [project @ 1997-02-26 07:52:14 by jwe] jwe parents: 2716 diff changeset	3567 // arguments.
76411ce43c05 [project @ 1997-02-26 07:52:14 by jwe] jwe parents: 2716 diff changeset	3568 //
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14161 diff changeset	3569 // If the following token is '=', or if we are parsing a function
3189 bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3180 diff changeset	3570 // return list or function parameter list, or if we are looking at
bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3180 diff changeset	3571 // something like [ab,cd] = foo (), force the symbol to be inserted
bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3180 diff changeset	3572 // as a variable in the current symbol table.
2702 7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe] jwe parents: 2621 diff changeset	3573
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3574 if (! is_variable (tok))
2702 7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe] jwe parents: 2621 diff changeset	3575 {
10052 5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3576 if (at_bos && spc_gobbled && can_be_command (tok)
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands John W. Eaton <jwe@octave.org> parents: 10048 diff changeset	3577 && looks_like_command_arg ())
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3578 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3579 BEGIN (COMMAND_START);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3580 }
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3581 else if (next_tok_is_eq
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3582 \|\| looking_at_decl_list
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3583 \|\| looking_at_return_list
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3584 \|\| (looking_at_parameter_list
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3585 && ! looking_at_initializer_expression))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3586 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3587 symbol_table::force_variable (tok);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3588 }
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3589 else if (looking_at_matrix_or_assign_lhs)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3590 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3591 pending_local_variables.insert (tok);
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3592 }
2702 7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe] jwe parents: 2621 diff changeset	3593 }
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe] jwe parents: 2621 diff changeset	3594
4234 90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe] jwe parents: 4233 diff changeset	3595 // Find the token in the symbol table. Beware the magic
90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe] jwe parents: 4233 diff changeset	3596 // transformation of the end keyword...
90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe] jwe parents: 4233 diff changeset	3597
90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe] jwe parents: 4233 diff changeset	3598 if (tok == "end")
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	3599 tok = "__end__";
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3600
7336 745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe] jwe parents: 7017 diff changeset	3601 yylval.tok_val = new token (&(symbol_table::insert (tok)),
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3602 input_line_number,
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3603 current_input_column);
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3604
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3605 token_stack.push (yylval.tok_val);
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3606
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1823 diff changeset	3607 // After seeing an identifer, it is ok to convert spaces to a comma
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1823 diff changeset	3608 // (if needed).
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3609
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3610 convert_spaces_to_comma = true;
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3611
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	3612 if (! (next_tok_is_eq \|\| YY_START == COMMAND_START))
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2861 diff changeset	3613 {
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3614 quote_is_transpose = true;
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3615
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2861 diff changeset	3616 do_comma_insert_check ();
5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2861 diff changeset	3617
5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2861 diff changeset	3618 maybe_unput_comma (spc_gobbled);
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3619 }
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3620
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3621 current_input_column += yyleng;
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3622
9324 29563379fa9b don't look for object index after keyword John W. Eaton <jwe@octave.org> parents: 8974 diff changeset	3623 if (tok != "__end__")
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3624 looking_for_object_index = true;
9324 29563379fa9b don't look for object index after keyword John W. Eaton <jwe@octave.org> parents: 8974 diff changeset	3625
146 edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3626 return NAME;
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3627 }
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe] jwe parents: 143 diff changeset	3628
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3629 void
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3630 lexical_feedback::maybe_warn_separator_insert (char sep)
3388 42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	3631 {
3523 b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe] jwe parents: 3503 diff changeset	3632 std::string nm = curr_fcn_file_full_name;
3388 42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	3633
5794 1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5783 diff changeset	3634 if (nm.empty ())
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5783 diff changeset	3635 warning_with_id ("Octave:separator-insert",
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14161 diff changeset	3636 "potential auto-insertion of '%c' near line %d",
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3637 sep, input_line_number);
5794 1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5783 diff changeset	3638 else
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5783 diff changeset	3639 warning_with_id ("Octave:separator-insert",
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14161 diff changeset	3640 "potential auto-insertion of '%c' near line %d of file %s",
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3641 sep, input_line_number, nm.c_str ());
3388 42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	3642 }
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe] jwe parents: 3351 diff changeset	3643
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3644 void
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3645 lexical_feedback::gripe_single_quote_string (void)
3400 18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe] jwe parents: 3388 diff changeset	3646 {
3523 b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe] jwe parents: 3503 diff changeset	3647 std::string nm = curr_fcn_file_full_name;
3400 18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe] jwe parents: 3388 diff changeset	3648
5794 1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5783 diff changeset	3649 if (nm.empty ())
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5783 diff changeset	3650 warning_with_id ("Octave:single-quote-string",
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3651 "single quote delimited string near line %d",
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3652 input_line_number);
5794 1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5783 diff changeset	3653 else
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe] jwe parents: 5783 diff changeset	3654 warning_with_id ("Octave:single-quote-string",
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3655 "single quote delimited string near line %d of file %s",
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3656 input_line_number, nm.c_str ());
3400 18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe] jwe parents: 3388 diff changeset	3657 }
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe] jwe parents: 3388 diff changeset	3658
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3659 void
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3660 lexical_feedback::gripe_matlab_incompatible (const std::string& msg)
4037 7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3661 {
8974 fde2a916b2ac include line and file info in parser warnings John W. Eaton <jwe@octave.org> parents: 8950 diff changeset	3662 std::string nm = curr_fcn_file_full_name;
fde2a916b2ac include line and file info in parser warnings John W. Eaton <jwe@octave.org> parents: 8950 diff changeset	3663
fde2a916b2ac include line and file info in parser warnings John W. Eaton <jwe@octave.org> parents: 8950 diff changeset	3664 if (nm.empty ())
fde2a916b2ac include line and file info in parser warnings John W. Eaton <jwe@octave.org> parents: 8950 diff changeset	3665 warning_with_id ("Octave:matlab-incompatible",
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3666 "potential Matlab compatibility problem: %s",
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3667 msg.c_str ());
8974 fde2a916b2ac include line and file info in parser warnings John W. Eaton <jwe@octave.org> parents: 8950 diff changeset	3668 else
fde2a916b2ac include line and file info in parser warnings John W. Eaton <jwe@octave.org> parents: 8950 diff changeset	3669 warning_with_id ("Octave:matlab-incompatible",
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 10182 diff changeset	3670 "potential Matlab compatibility problem: %s near line %d offile %s",
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3671 msg.c_str (), input_line_number, nm.c_str ());
4037 7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3672 }
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3673
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3674 void
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3675 lexical_feedback::maybe_gripe_matlab_incompatible_comment (char c)
4037 7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3676 {
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3677 if (c == '#')
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3678 gripe_matlab_incompatible ("# used as comment character");
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3679 }
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3680
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3681 void
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3682 lexical_feedback::gripe_matlab_incompatible_continuation (void)
4037 7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3683 {
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3684 gripe_matlab_incompatible ("\\ used as line continuation marker");
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3685 }
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3686
16113 7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3687 void
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16111 diff changeset	3688 lexical_feedback::gripe_matlab_incompatible_operator (const std::string& op)
4037 7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3689 {
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3690 std::string t = op;
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3691 int n = t.length ();
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3692 if (t[n-1] == '\n')
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3693 t.resize (n-1);
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3694 gripe_matlab_incompatible (t + " used as operator");
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe] jwe parents: 4018 diff changeset	3695 }

Mercurial > hg > octave-nkf

annotate libinterp/parse-tree/lex.ll @ 16114:73a21ade0b6b