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

annotate libinterp/parse-tree/lex.h @ 16105:b7de58feb2d3

move block_comment_nesting_level to lexical_feedback_class * lex.h, lex.ll (block_comment_nesting_level): Move global variable to lexical_feedback class. Change all uses. (reset_parser): Don't reset block_comment_nesting_level.

author	John W. Eaton <jwe@octave.org>
date	Mon, 25 Feb 2013 21:59:40 -0500
parents	c8974e28da59
children	031117f4db7c

rev	line source
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	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: 13973 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: 5775 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: 5775 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: 5775 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: 5775 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
383 0b52c68ec81f [project @ 1994-03-09 21:19:44 by jwe] jwe parents: 247 diff changeset	23 #if !defined (octave_lex_h)
0b52c68ec81f [project @ 1994-03-09 21:19:44 by jwe] jwe parents: 247 diff changeset	24 #define octave_lex_h 1
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	25
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	26 #include <list>
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	27 #include <set>
11464 21b5284fa78d avoid error when parsing nested functions John W. Eaton <jwe@octave.org> parents: 11367 diff changeset	28 #include <stack>
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	29
5775 ace8d8d26933 [project @ 2006-04-24 19:13:06 by jwe] jwe parents: 5307 diff changeset	30 // FIXME -- these input buffer things should be members of a
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	31 // parser input stream class.
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	32
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	33 typedef struct yy_buffer_state *YY_BUFFER_STATE;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	34
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	35 // Associate a buffer with a new file to read.
9247 b2790fd23800 More export symbols to allow usage from an IDE. Michael Goffioul <michael.goffioul@gmail.com> parents: 8920 diff changeset	36 extern OCTINTERP_API YY_BUFFER_STATE create_buffer (FILE *f);
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 // Report the current buffer.
9247 b2790fd23800 More export symbols to allow usage from an IDE. Michael Goffioul <michael.goffioul@gmail.com> parents: 8920 diff changeset	39 extern OCTINTERP_API YY_BUFFER_STATE current_buffer (void);
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	40
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	41 // Connect to new buffer buffer.
9247 b2790fd23800 More export symbols to allow usage from an IDE. Michael Goffioul <michael.goffioul@gmail.com> parents: 8920 diff changeset	42 extern OCTINTERP_API void switch_to_buffer (YY_BUFFER_STATE buf);
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	43
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	44 // Delete a buffer.
9247 b2790fd23800 More export symbols to allow usage from an IDE. Michael Goffioul <michael.goffioul@gmail.com> parents: 8920 diff changeset	45 extern OCTINTERP_API void delete_buffer (YY_BUFFER_STATE buf);
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	46
13973 2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13237 diff changeset	47 extern OCTINTERP_API void clear_all_buffers (void);
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13237 diff changeset	48
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13237 diff changeset	49 extern OCTINTERP_API void cleanup_parser (void);
2c664266e9d0 clean up parser memory on exit John W. Eaton <jwe@octave.org> parents: 13237 diff changeset	50
4867 c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe] jwe parents: 4753 diff changeset	51 // Is the given string a keyword?
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe] jwe parents: 4753 diff changeset	52 extern bool is_keyword (const std::string& s);
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe] jwe parents: 4753 diff changeset	53
9474 25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9396 diff changeset	54 extern void prep_lexer_for_script_file (void);
25ed2d6aacf6 Parse nested functions more accurately. David Grundberg <individ@acc.umu.se> parents: 9396 diff changeset	55 extern void prep_lexer_for_function_file (void);
7715 5b4d278ec828 parse scripts completely before executing John W. Eaton <jwe@octave.org> parents: 7634 diff changeset	56
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	57 // For communication between the lexer and parser.
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	58
3585 d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3351 diff changeset	59 class
d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3351 diff changeset	60 lexical_feedback
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	61 {
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	62 public:
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	63
16104 c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	64 // Track nesting of square brackets, curly braces, and parentheses.
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	65
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	66 class bbp_nesting_level
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	67 {
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	68 private:
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	69
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	70 enum
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	71 {
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	72 BRACKET = 1,
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	73 BRACE = 2,
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	74 PAREN = 3
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	75 };
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	76
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	77 public:
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	78
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	79 bbp_nesting_level (void) : context () { }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	80
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	81 bbp_nesting_level (const bbp_nesting_level& nl) : context (nl.context) { }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	82
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	83 bbp_nesting_level& operator = (const bbp_nesting_level& nl)
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	84 {
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	85 if (&nl != this)
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	86 context = nl.context;
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	87
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	88 return *this;
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	89 }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	90
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	91 ~bbp_nesting_level (void) { }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	92
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	93 void bracket (void) { context.push (BRACKET); }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	94
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	95 bool is_bracket (void)
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	96 {
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	97 return ! context.empty () && context.top () == BRACKET;
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	98 }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	99
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	100 void brace (void) { context.push (BRACE); }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	101
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	102 bool is_brace (void)
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	103 {
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	104 return ! context.empty () && context.top () == BRACE;
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	105 }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	106
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	107 void paren (void) { context.push (PAREN); }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	108
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	109 bool is_paren (void)
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	110 {
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	111 return ! context.empty () && context.top () == PAREN;
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	112 }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	113
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	114 bool is_bracket_or_brace (void)
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	115 {
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	116 return (! context.empty ()
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	117 && (context.top () == BRACKET \|\| context.top () == BRACE));
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	118 }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	119
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	120 bool none (void) { return context.empty (); }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	121
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	122 void remove (void)
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	123 {
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	124 if (! context.empty ())
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	125 context.pop ();
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	126 }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	127
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	128 void clear (void)
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	129 {
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	130 while (! context.empty ())
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	131 context.pop ();
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	132 }
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	133
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	134 private:
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	135
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	136 std::stack<int> context;
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	137 };
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	138
11515 6dbf9bcce90e more data member initialization fixes John W. Eaton <jwe@octave.org> parents: 11464 diff changeset	139 lexical_feedback (void)
16100 6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	140 : convert_spaces_to_comma (true), do_comma_insert (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	141 at_beginning_of_statement (true),
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	142 looking_at_anon_fcn_args (false), looking_at_return_list (false),
16100 6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	143 looking_at_parameter_list (false), looking_at_decl_list (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	144 looking_at_initializer_expression (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	145 looking_at_matrix_or_assign_lhs (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	146 looking_for_object_index (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	147 looking_at_indirect_ref (false), parsing_class_method (false),
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	148 maybe_classdef_get_set_method (false), parsing_classdef (false),
16102 679a54d274d9 move global parser_end_of_input variable to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16101 diff changeset	149 quote_is_transpose (false), parser_end_of_input (false),
16103 6434f70f0ee0 move input_line_number and current_input_column to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16102 diff changeset	150 input_line_number (1), current_input_column (1),
16102 679a54d274d9 move global parser_end_of_input variable to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16101 diff changeset	151 bracketflag (0), braceflag (0),
16100 6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	152 looping (0), defining_func (0), looking_at_function_handle (0),
16105 b7de58feb2d3 move block_comment_nesting_level to lexical_feedback_class John W. Eaton <jwe@octave.org> parents: 16104 diff changeset	153 block_comment_nesting_level (0),
16100 6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	154 looking_at_object_index (), parsed_function_name (),
16104 c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	155 pending_local_variables (), nesting_level ()
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	156 {
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	157 init ();
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	158 }
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	159
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	160 lexical_feedback (const lexical_feedback& lf)
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	161 : convert_spaces_to_comma (lf.convert_spaces_to_comma),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	162 do_comma_insert (lf.do_comma_insert),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	163 at_beginning_of_statement (lf.at_beginning_of_statement),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	164 looking_at_anon_fcn_args (lf.looking_at_anon_fcn_args),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	165 looking_at_return_list (lf.looking_at_return_list),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	166 looking_at_parameter_list (lf.looking_at_parameter_list),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	167 looking_at_decl_list (lf.looking_at_decl_list),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	168 looking_at_initializer_expression (lf.looking_at_initializer_expression),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	169 looking_at_matrix_or_assign_lhs (lf.looking_at_matrix_or_assign_lhs),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	170 looking_for_object_index (lf.looking_for_object_index),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	171 looking_at_indirect_ref (lf.looking_at_indirect_ref),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	172 parsing_class_method (lf.parsing_class_method),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	173 maybe_classdef_get_set_method (lf.maybe_classdef_get_set_method),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	174 parsing_classdef (lf.parsing_classdef),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	175 quote_is_transpose (lf.quote_is_transpose),
16102 679a54d274d9 move global parser_end_of_input variable to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16101 diff changeset	176 parser_end_of_input (lf.parser_end_of_input),
16103 6434f70f0ee0 move input_line_number and current_input_column to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16102 diff changeset	177 input_line_number (lf.input_line_number),
6434f70f0ee0 move input_line_number and current_input_column to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16102 diff changeset	178 current_input_column (lf.current_input_column),
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	179 bracketflag (lf.bracketflag),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	180 braceflag (lf.braceflag),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	181 looping (lf.looping),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	182 defining_func (lf.defining_func),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	183 looking_at_function_handle (lf.looking_at_function_handle),
16105 b7de58feb2d3 move block_comment_nesting_level to lexical_feedback_class John W. Eaton <jwe@octave.org> parents: 16104 diff changeset	184 block_comment_nesting_level (lf.block_comment_nesting_level),
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	185 looking_at_object_index (lf.looking_at_object_index),
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	186 parsed_function_name (lf.parsed_function_name),
16104 c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	187 pending_local_variables (lf.pending_local_variables),
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	188 nesting_level (lf.nesting_level)
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	189 { }
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	190
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	191 lexical_feedback& operator = (const lexical_feedback& lf)
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	192 {
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	193 if (&lf != this)
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	194 {
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	195 convert_spaces_to_comma = lf.convert_spaces_to_comma;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	196 do_comma_insert = lf.do_comma_insert;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	197 at_beginning_of_statement = lf.at_beginning_of_statement;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	198 looking_at_anon_fcn_args = lf.looking_at_anon_fcn_args;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	199 looking_at_return_list = lf.looking_at_return_list;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	200 looking_at_parameter_list = lf.looking_at_parameter_list;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	201 looking_at_decl_list = lf.looking_at_decl_list;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	202 looking_at_initializer_expression = lf.looking_at_initializer_expression;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	203 looking_at_matrix_or_assign_lhs = lf.looking_at_matrix_or_assign_lhs;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	204 looking_for_object_index = lf.looking_for_object_index;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	205 looking_at_indirect_ref = lf.looking_at_indirect_ref;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	206 parsing_class_method = lf.parsing_class_method;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	207 maybe_classdef_get_set_method = lf.maybe_classdef_get_set_method;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	208 parsing_classdef = lf.parsing_classdef;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	209 quote_is_transpose = lf.quote_is_transpose;
16102 679a54d274d9 move global parser_end_of_input variable to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16101 diff changeset	210 parser_end_of_input = lf.parser_end_of_input;
16103 6434f70f0ee0 move input_line_number and current_input_column to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16102 diff changeset	211 input_line_number = lf.input_line_number;
6434f70f0ee0 move input_line_number and current_input_column to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16102 diff changeset	212 current_input_column = lf.current_input_column;
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	213 bracketflag = lf.bracketflag;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	214 braceflag = lf.braceflag;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	215 looping = lf.looping;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	216 defining_func = lf.defining_func;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	217 looking_at_function_handle = lf.looking_at_function_handle;
16105 b7de58feb2d3 move block_comment_nesting_level to lexical_feedback_class John W. Eaton <jwe@octave.org> parents: 16104 diff changeset	218 block_comment_nesting_level = lf.block_comment_nesting_level,
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	219 looking_at_object_index = lf.looking_at_object_index;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	220 parsed_function_name = lf.parsed_function_name;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	221 pending_local_variables = lf.pending_local_variables;
16104 c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	222 nesting_level = lf.nesting_level;
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	223 }
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	224
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	225 return *this;
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	226 }
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	227
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	228 ~lexical_feedback (void) { }
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	229
16101 8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	230 void init (void)
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	231 {
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	232 // The closest paren, brace, or bracket nesting is not an object
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	233 // index.
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	234 looking_at_object_index.push_front (false);
8d19626b38ae provide copy contructor and operator = for lexical_feedback class. John W. Eaton <jwe@octave.org> parents: 16100 diff changeset	235 }
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	236
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	237 // TRUE means that we should convert spaces to a comma inside a
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	238 // matrix definition.
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	239 bool convert_spaces_to_comma;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	240
16100 6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	241 // GAG. Stupid kludge so that [[1,2][3,4]] will work.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	242 bool do_comma_insert;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	243
8746 5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	244 // TRUE means we are at the beginning of a statement, where a
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	245 // command name is possible.
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	246 bool at_beginning_of_statement;
5dd06f19e9be handle commands in the lexer John W. Eaton <jwe@octave.org> parents: 8745 diff changeset	247
13237 1bfca2bbea8b fix parsing of anonymous functions inside cell array lists. John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	248 // TRUE means we are parsing an anonymous function argument list.
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists. John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	249 bool looking_at_anon_fcn_args;
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists. John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	250
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	251 // TRUE means we're parsing the return list for a function.
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	252 bool looking_at_return_list;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	253
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	254 // TRUE means we're parsing the parameter list for a function.
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	255 bool looking_at_parameter_list;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	256
8701 1652e39b934e handle command names in declaration lists John W. Eaton <jwe@octave.org> parents: 8001 diff changeset	257 // TRUE means we're parsing a declaration list (global or
1652e39b934e handle command names in declaration lists John W. Eaton <jwe@octave.org> parents: 8001 diff changeset	258 // persistent).
1652e39b934e handle command names in declaration lists John W. Eaton <jwe@octave.org> parents: 8001 diff changeset	259 bool looking_at_decl_list;
1652e39b934e handle command names in declaration lists John W. Eaton <jwe@octave.org> parents: 8001 diff changeset	260
7634 ae90e05ad299 fix parameter list initializer bug John W. Eaton <jwe@octave.org> parents: 7336 diff changeset	261 // TRUE means we are looking at the initializer expression for a
ae90e05ad299 fix parameter list initializer bug John W. Eaton <jwe@octave.org> parents: 7336 diff changeset	262 // parameter list element.
ae90e05ad299 fix parameter list initializer bug John W. Eaton <jwe@octave.org> parents: 7336 diff changeset	263 bool looking_at_initializer_expression;
ae90e05ad299 fix parameter list initializer bug John W. Eaton <jwe@octave.org> parents: 7336 diff changeset	264
3189 bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3165 diff changeset	265 // TRUE means we're parsing a matrix or the left hand side of
bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3165 diff changeset	266 // multi-value assignment statement.
bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3165 diff changeset	267 bool looking_at_matrix_or_assign_lhs;
bef7b73c0724 [project @ 1998-10-16 18:05:26 by jwe] jwe parents: 3165 diff changeset	268
8745 6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	269 // Object index not possible until we've seen something.
6dc61981d18b better handling of object indexing in lexer John W. Eaton <jwe@octave.org> parents: 8701 diff changeset	270 bool looking_for_object_index;
4234 90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe] jwe parents: 4182 diff changeset	271
2877 5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe] jwe parents: 2857 diff changeset	272 // TRUE means we're looking at an indirect reference to a
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	273 // structure element.
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	274 bool looking_at_indirect_ref;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	275
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	276 // TRUE means we are parsing a class method in function or classdef file.
7336 745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe] jwe parents: 7017 diff changeset	277 bool parsing_class_method;
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe] jwe parents: 7017 diff changeset	278
9476 d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	279 // TRUE means we are parsing a class method declaration line in a
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	280 // classdef file and can accept a property get or set method name.
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	281 // For example, "get.PropertyName" is recognized as a function name.
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	282 bool maybe_classdef_get_set_method;
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	283
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	284 // TRUE means we are parsing a classdef file
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	285 bool parsing_classdef;
d9b25c5b8ee5 handle classdef syntax in lexer and parser Ryan Rusaw parents: 9474 diff changeset	286
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	287 // Return transpose or start a string?
2857 5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe] jwe parents: 2847 diff changeset	288 bool quote_is_transpose;
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	289
16102 679a54d274d9 move global parser_end_of_input variable to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16101 diff changeset	290 // TRUE means that we have encountered EOF on the input stream.
679a54d274d9 move global parser_end_of_input variable to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16101 diff changeset	291 bool parser_end_of_input;
679a54d274d9 move global parser_end_of_input variable to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16101 diff changeset	292
16103 6434f70f0ee0 move input_line_number and current_input_column to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16102 diff changeset	293 // The current input line number.
6434f70f0ee0 move input_line_number and current_input_column to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16102 diff changeset	294 int input_line_number;
6434f70f0ee0 move input_line_number and current_input_column to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16102 diff changeset	295
6434f70f0ee0 move input_line_number and current_input_column to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16102 diff changeset	296 // The column of the current token.
6434f70f0ee0 move input_line_number and current_input_column to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16102 diff changeset	297 int current_input_column;
6434f70f0ee0 move input_line_number and current_input_column to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16102 diff changeset	298
16100 6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	299 // Square bracket level count.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	300 int bracketflag;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	301
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	302 // Curly brace level count.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	303 int braceflag;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	304
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	305 // TRUE means we're in the middle of defining a loop.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	306 int looping;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	307
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	308 // Nonzero means we're in the middle of defining a function.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	309 int defining_func;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	310
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	311 // Nonzero means we are parsing a function handle.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	312 int looking_at_function_handle;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	313
16105 b7de58feb2d3 move block_comment_nesting_level to lexical_feedback_class John W. Eaton <jwe@octave.org> parents: 16104 diff changeset	314 // Nestng level for blcok comments.
b7de58feb2d3 move block_comment_nesting_level to lexical_feedback_class John W. Eaton <jwe@octave.org> parents: 16104 diff changeset	315 int block_comment_nesting_level;
b7de58feb2d3 move block_comment_nesting_level to lexical_feedback_class John W. Eaton <jwe@octave.org> parents: 16104 diff changeset	316
16100 6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	317 // If the front of the list is TRUE, the closest paren, brace, or
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	318 // bracket nesting is an index for an object.
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	319 std::list<bool> looking_at_object_index;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	320
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	321 // If the top of the stack is TRUE, then we've already seen the name
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	322 // of the current function. Should only matter if
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	323 // current_function_level > 0
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	324 std::stack<bool> parsed_function_name;
6b26e18d1dcb reorder data members in lexical_feedback class John W. Eaton <jwe@octave.org> parents: 15195 diff changeset	325
8001 ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	326 // Set of identifiers that might be local variable names.
ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context John W. Eaton <jwe@octave.org> parents: 7723 diff changeset	327 std::set<std::string> pending_local_variables;
16104 c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	328
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	329 // Is the closest nesting level a square bracket, squiggly brace or
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	330 // a paren?
c8974e28da59 move nesting_level to lexical_feedback class John W. Eaton <jwe@octave.org> parents: 16103 diff changeset	331 bbp_nesting_level nesting_level;
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	332 };
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	333
7720 4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	334 class
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	335 stream_reader
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	336 {
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	337 public:
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	338 virtual int getc (void) = 0;
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	339 virtual int ungetc (int c) = 0;
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	340
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	341 protected:
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	342 stream_reader (void) { }
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	343 ~stream_reader (void) { }
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	344
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	345 private:
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	346
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	347 // No copying!
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	348 stream_reader (const stream_reader&);
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	349 stream_reader& operator = (const stream_reader&);
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	350 };
4e2eafef689c unify comment and help text processing in lex.l and parse.y John W. Eaton <jwe@octave.org> parents: 7715 diff changeset	351
7723 74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	352 extern std::string
74f5e0c7de9e first pass at handling block comments John W. Eaton <jwe@octave.org> parents: 7720 diff changeset	353 grab_comment_block (stream_reader& reader, bool at_bol, bool& 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	354
1826 b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	355 // Flags that need to be shared between the lexer and parser.
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe] jwe parents: 1315 diff changeset	356 extern lexical_feedback lexer_flags;
440 e27d10f2e573 [project @ 1994-05-30 03:33:37 by jwe] jwe parents: 383 diff changeset	357
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	358 #endif

Mercurial > hg > octave-nkf

annotate libinterp/parse-tree/lex.h @ 16105:b7de58feb2d3