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annotate libinterp/parse-tree/lex.ll @ 15576:6ea536cb7360 classdef

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maint: periodic merge of default to classdef
author Jordi Gutiérrez Hermoso <jordigh@octave.org>
date Thu, 01 Nov 2012 15:01:20 -0400
parents 947cf10c94da 6437fa7263dd
children 0259254a3ccc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1994
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1 /*
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2
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3 Copyright (C) 1993-2012 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
1
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 %option prefix = "octave_"
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24
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25 %top {
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26 #ifdef HAVE_CONFIG_H
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27 #include <config.h>
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28 #endif
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29
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30 }
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31
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32 %s COMMAND_START
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33 %s MATRIX_START
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34
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35 %x SCRIPT_FILE_BEGIN
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36 %x FUNCTION_FILE_BEGIN
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37 %x CLASSDEF_FILE_BEGIN
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38
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39 %{
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40
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41 #include <cctype>
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42 #include <cstring>
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43
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44 #include <iostream>
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45 #include <set>
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46 #include <sstream>
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47 #include <string>
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48 #include <stack>
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49
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50 #include <sys/types.h>
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51 #include <unistd.h>
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52
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53 #include "cmd-edit.h"
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54 #include "quit.h"
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55 #include "lo-mappers.h"
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56
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57 // These would be alphabetical, but y.tab.h must be included before
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58 // oct-gperf.h and y.tab.h must be included after token.h and the tree
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59 // class declarations. We can't include y.tab.h in oct-gperf.h
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60 // because it may not be protected to allow it to be included multiple
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61 // times.
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62
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63 #include "Cell.h"
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64 #include "comment-list.h"
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65 #include "defun.h"
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66 #include "error.h"
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67 #include "gripes.h"
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68 #include "input.h"
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69 #include "lex.h"
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70 #include "ov.h"
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71 #include "parse.h"
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72 #include "parse-private.h"
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73 #include "pt-all.h"
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74 #include "symtab.h"
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75 #include "token.h"
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76 #include "toplev.h"
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77 #include "utils.h"
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78 #include "variables.h"
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79 #include <oct-parse.h>
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80 #include <oct-gperf.h>
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81
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82 #if defined (GNULIB_NAMESPACE)
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83 // Calls to the following functions appear in the generated output from
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84 // flex without the namespace tag. Redefine them so we will use them
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85 // via the gnulib namespace.
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86 #define fprintf GNULIB_NAMESPACE::fprintf
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87 #define fwrite GNULIB_NAMESPACE::fwrite
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88 #define isatty GNULIB_NAMESPACE::isatty
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89 #define malloc GNULIB_NAMESPACE::malloc
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90 #define realloc GNULIB_NAMESPACE::realloc
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91 #endif
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92
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93 #if ! (defined (FLEX_SCANNER) \
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94 && defined (YY_FLEX_MAJOR_VERSION) && YY_FLEX_MAJOR_VERSION >= 2 \
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95 && defined (YY_FLEX_MINOR_VERSION) && YY_FLEX_MINOR_VERSION >= 5)
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96 #error lex.l requires flex version 2.5.4 or later
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97 #endif
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98
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99 #define yylval octave_lval
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100
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101 // Arrange to get input via readline.
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102
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103 #ifdef YY_INPUT
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104 #undef YY_INPUT
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105 #endif
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106 #define YY_INPUT(buf, result, max_size) \
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107 if ((result = octave_read (buf, max_size)) < 0) \
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108 YY_FATAL_ERROR ("octave_read () in flex scanner failed");
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109
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110 // Try to avoid crashing out completely on fatal scanner errors.
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111 // The call to yy_fatal_error should never happen, but it avoids a
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112 // 'static function defined but not used' warning from gcc.
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113
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114 #ifdef YY_FATAL_ERROR
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115 #undef YY_FATAL_ERROR
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116 #endif
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117 #define YY_FATAL_ERROR(msg) \
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118 do \
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119 { \
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120 error (msg); \
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121 OCTAVE_QUIT; \
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122 yy_fatal_error (msg); \
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123 } \
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124 while (0)
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125
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126 #define DISPLAY_TOK_AND_RETURN(tok) \
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127 do \
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128 { \
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129 int tok_val = tok; \
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130 if (Vdisplay_tokens) \
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131 display_token (tok_val); \
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132 if (lexer_debug_flag) \
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133 { \
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134 std::cerr << "R: "; \
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135 display_token (tok_val); \
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136 std::cerr << std::endl; \
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137 } \
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138 return tok_val; \
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139 } \
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140 while (0)
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141
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142 #define COUNT_TOK_AND_RETURN(tok) \
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143 do \
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144 { \
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145 Vtoken_count++; \
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146 DISPLAY_TOK_AND_RETURN (tok); \
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147 } \
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148 while (0)
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149
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150 #define TOK_RETURN(tok) \
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151 do \
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152 { \
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153 current_input_column += yyleng; \
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154 lexer_flags.quote_is_transpose = false; \
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155 lexer_flags.convert_spaces_to_comma = true; \
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156 COUNT_TOK_AND_RETURN (tok); \
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157 } \
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158 while (0)
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159
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160 #define TOK_PUSH_AND_RETURN(name, tok) \
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161 do \
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162 { \
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163 yylval.tok_val = new token (name, input_line_number, \
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164 current_input_column); \
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165 token_stack.push (yylval.tok_val); \
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166 TOK_RETURN (tok); \
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167 } \
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168 while (0)
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169
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170 #define BIN_OP_RETURN_INTERNAL(tok, convert, bos, qit) \
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171 do \
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172 { \
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173 yylval.tok_val = new token (input_line_number, current_input_column); \
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174 token_stack.push (yylval.tok_val); \
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175 current_input_column += yyleng; \
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176 lexer_flags.quote_is_transpose = qit; \
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177 lexer_flags.convert_spaces_to_comma = convert; \
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178 lexer_flags.looking_for_object_index = false; \
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179 lexer_flags.at_beginning_of_statement = bos; \
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180 COUNT_TOK_AND_RETURN (tok); \
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181 } \
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182 while (0)
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183
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184 #define XBIN_OP_RETURN_INTERNAL(tok, convert, bos, qit) \
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185 do \
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186 { \
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187 gripe_matlab_incompatible_operator (yytext); \
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188 BIN_OP_RETURN_INTERNAL (tok, convert, bos, qit); \
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189 } \
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190 while (0)
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191
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192 #define BIN_OP_RETURN(tok, convert, bos) \
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193 do \
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194 { \
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195 BIN_OP_RETURN_INTERNAL (tok, convert, bos, false); \
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196 } \
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197 while (0)
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198
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199 #define XBIN_OP_RETURN(tok, convert, bos) \
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200 do \
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201 { \
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202 gripe_matlab_incompatible_operator (yytext); \
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203 BIN_OP_RETURN (tok, convert, bos); \
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204 } \
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205 while (0)
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206
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207 #define LEXER_DEBUG(pattern) \
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208 do \
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209 { \
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210 if (lexer_debug_flag) \
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211 lexer_debug (pattern, yytext); \
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212 } \
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213 while (0)
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214
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215 // TRUE means that we have encountered EOF on the input stream.
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216 bool parser_end_of_input = false;
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217
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218 // Flags that need to be shared between the lexer and parser.
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219 lexical_feedback lexer_flags;
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220
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221 // Stack to hold tokens so that we can delete them when the parser is
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222 // reset and avoid growing forever just because we are stashing some
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223 // information. This has to appear before lex.h is included, because
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224 // one of the macros defined there uses token_stack.
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225 //
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226 // FIXME -- this should really be static, but that causes
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227 // problems on some systems.
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228 std::stack <token*> token_stack;
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229
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230 // Did eat_whitespace() eat a space or tab, or a newline, or both?
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231
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232 typedef int yum_yum;
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233
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234 const yum_yum ATE_NOTHING = 0;
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235 const yum_yum ATE_SPACE_OR_TAB = 1;
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236 const yum_yum ATE_NEWLINE = 2;
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237
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238 // Is the closest nesting level a square bracket, squiggly brace or a paren?
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239
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240 class bracket_brace_paren_nesting_level
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241 {
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242 public:
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243
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244 bracket_brace_paren_nesting_level (void) : context () { }
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245
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246 ~bracket_brace_paren_nesting_level (void) { }
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247
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248 void bracket (void) { context.push (BRACKET); }
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249 bool is_bracket (void)
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250 { return ! context.empty () && context.top () == BRACKET; }
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251
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252 void brace (void) { context.push (BRACE); }
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253 bool is_brace (void)
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254 { return ! context.empty () && context.top () == BRACE; }
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255
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256 void paren (void) { context.push (PAREN); }
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257 bool is_paren (void)
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258 { return ! context.empty () && context.top () == PAREN; }
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259
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260 bool is_bracket_or_brace (void)
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261 { return (! context.empty ()
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262 && (context.top () == BRACKET || context.top () == BRACE)); }
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263
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264 bool none (void) { return context.empty (); }
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265
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266 void remove (void) { if (! context.empty ()) context.pop (); }
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267
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268 void clear (void) { while (! context.empty ()) context.pop (); }
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269
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270 private:
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271
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272 std::stack<int> context;
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273
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274 static const int BRACKET;
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275 static const int BRACE;
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276 static const int PAREN;
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277
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278 bracket_brace_paren_nesting_level (const bracket_brace_paren_nesting_level&);
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279
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280 bracket_brace_paren_nesting_level&
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281 operator = (const bracket_brace_paren_nesting_level&);
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282 };
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283
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284 const int bracket_brace_paren_nesting_level::BRACKET = 1;
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285 const int bracket_brace_paren_nesting_level::BRACE = 2;
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286 const int bracket_brace_paren_nesting_level::PAREN = 3;
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287
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288 static bracket_brace_paren_nesting_level nesting_level;
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289
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290 static bool Vdisplay_tokens = false;
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291
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292 static unsigned int Vtoken_count = 0;
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293
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294 // The start state that was in effect when the beginning of a block
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295 // comment was noticed.
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296 static int block_comment_nesting_level = 0;
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297
8535
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298 // Internal variable for lexer debugging state.
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diff changeset
299 static bool lexer_debug_flag = false;
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diff changeset
300
146
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parents: 143
diff changeset
301 // Forward declarations for functions defined at the bottom of this
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
302 // file.
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jwe
parents: 143
diff changeset
303
7728
13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser
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parents: 7723
diff changeset
304 static int text_yyinput (void);
8447
adab48231a03 make input_line_number work again
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parents: 8312
diff changeset
305 static void xunput (char c, char *buf);
1
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jwe
parents:
diff changeset
306 static void fixup_column_count (char *s);
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
307 static void do_comma_insert_check (void);
4867
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
308 static int is_keyword_token (const std::string& s);
7723
74f5e0c7de9e first pass at handling block comments
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parents: 7722
diff changeset
309 static int process_comment (bool start_in_block, bool& eof);
2857
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parents: 2856
diff changeset
310 static bool match_any (char c, const char *s);
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
311 static bool next_token_is_sep_op (void);
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
312 static bool next_token_is_bin_op (bool spc_prev);
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
313 static bool next_token_is_postfix_unary_op (bool spc_prev);
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
314 static std::string strip_trailing_whitespace (char *s);
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
315 static void handle_number (void);
8746
5dd06f19e9be handle commands in the lexer
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parents: 8745
diff changeset
316 static int handle_string (char delim);
4612
d44675070f1a [project @ 2003-11-14 19:49:56 by jwe]
jwe
parents: 4608
diff changeset
317 static int handle_close_bracket (bool spc_gobbled, int bracket_type);
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
318 static int handle_superclass_identifier (void);
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
319 static int handle_meta_identifier (void);
3974
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
320 static int handle_identifier (void);
3096
ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe]
jwe
parents: 3079
diff changeset
321 static bool have_continuation (bool trailing_comments_ok = true);
ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe]
jwe
parents: 3079
diff changeset
322 static bool have_ellipsis_continuation (bool trailing_comments_ok = true);
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
323 static void scan_for_comments (const char *);
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
324 static yum_yum eat_whitespace (void);
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
325 static yum_yum eat_continuation (void);
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
326 static void maybe_warn_separator_insert (char sep);
3400
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
327 static void gripe_single_quote_string (void);
4037
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
328 static void gripe_matlab_incompatible (const std::string& msg);
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
329 static void maybe_gripe_matlab_incompatible_comment (char c);
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
330 static void gripe_matlab_incompatible_continuation (void);
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
331 static void gripe_matlab_incompatible_operator (const std::string& op);
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
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parents: 7720
diff changeset
332 static void display_token (int tok);
8535
75e6ab186761 lexer debugging functions
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parents: 8504
diff changeset
333 static void lexer_debug (const char *pattern, const char *text);
1
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parents:
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334
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
335 %}
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
336
10315
57a59eae83cc untabify src C++ source files
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parents: 10182
diff changeset
337 D [0-9]
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
338 S [ \t]
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
339 NL ((\n)|(\r)|(\r\n))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
340 SNL ({S}|{NL})
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
341 EL (\.\.\.)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
342 BS (\\)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
343 CONT ({EL}|{BS})
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
344 Im [iIjJ]
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
345 CCHAR [#%]
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
346 COMMENT ({CCHAR}.*{NL})
57a59eae83cc untabify src C++ source files
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parents: 10182
diff changeset
347 SNLCMT ({SNL}|{COMMENT})
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
348 NOT ((\~)|(\!))
4037
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
349 POW ((\*\*)|(\^))
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
350 EPOW (\.{POW})
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
351 IDENT ([_$a-zA-Z][_$a-zA-Z0-9]*)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
352 EXPON ([DdEe][+-]?{D}+)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
353 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
354 %%
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
355
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
356 %{
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
357 // 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
358 // the parser go down a special path.
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
359 %}
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
360
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
361 <SCRIPT_FILE_BEGIN>. {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
362 LEXER_DEBUG ("<SCRIPT_FILE_BEGIN>.");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
363
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
364 BEGIN (INITIAL);
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
365 xunput (yytext[0], yytext);
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
366 COUNT_TOK_AND_RETURN (SCRIPT_FILE);
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
367 }
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
368
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
369 <FUNCTION_FILE_BEGIN>. {
25ed2d6aacf6 Parse nested functions more accurately.
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parents: 9324
diff changeset
370 LEXER_DEBUG ("<FUNCTION_FILE_BEGIN>.");
8535
75e6ab186761 lexer debugging functions
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parents: 8504
diff changeset
371
4323
0990c9b77109 [project @ 2003-02-14 07:36:26 by jwe]
jwe
parents: 4318
diff changeset
372 BEGIN (INITIAL);
8447
adab48231a03 make input_line_number work again
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parents: 8312
diff changeset
373 xunput (yytext[0], yytext);
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
374 COUNT_TOK_AND_RETURN (FUNCTION_FILE);
4238
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
375 }
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
376
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
377 <CLASSDEF_FILE_BEGIN>. {
56b8eb7c9c04 improvements in parsing classdef
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parents: 14647
diff changeset
378 LEXER_DEBUG ("<CLASSDEF_FILE_BEGIN>.");
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
379
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
380 BEGIN (INITIAL);
56b8eb7c9c04 improvements in parsing classdef
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parents: 14647
diff changeset
381 xunput (yytext[0], yytext);
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
382 COUNT_TOK_AND_RETURN (CLASSDEF_FILE);
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
383 }
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
384
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
385 %{
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
386 // Help and other command-style functions.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
387 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
388
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
389 <COMMAND_START>{NL} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
390 LEXER_DEBUG ("<COMMAND_START>{NL}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
391
4323
0990c9b77109 [project @ 2003-02-14 07:36:26 by jwe]
jwe
parents: 4318
diff changeset
392 BEGIN (INITIAL);
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
393 input_line_number++;
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
394 current_input_column = 1;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
395
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
396 lexer_flags.quote_is_transpose = false;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
397 lexer_flags.convert_spaces_to_comma = true;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
398 lexer_flags.looking_for_object_index = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
399 lexer_flags.at_beginning_of_statement = true;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
400
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
401 COUNT_TOK_AND_RETURN ('\n');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
402 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
403
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
404 <COMMAND_START>[\;\,] {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
405 LEXER_DEBUG ("<COMMAND_START>[\\;\\,]");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
406
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
407 lexer_flags.looking_for_object_index = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
408 lexer_flags.at_beginning_of_statement = true;
5102
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
409
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
410 BEGIN (INITIAL);
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
411
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
412 if (strcmp (yytext, ",") == 0)
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
413 TOK_RETURN (',');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
414 else
5102
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
415 TOK_RETURN (';');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
416 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
417
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
418 <COMMAND_START>[\"\'] {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
419 LEXER_DEBUG ("<COMMAND_START>[\\\"\\']");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
420
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
421 lexer_flags.at_beginning_of_statement = false;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
422
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
423 current_input_column++;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
424 int tok = handle_string (yytext[0]);
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
425
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
426 COUNT_TOK_AND_RETURN (tok);
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
427 }
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
428
4923
b11223097ad4 [project @ 2004-08-02 16:33:11 by jwe]
jwe
parents: 4910
diff changeset
429 <COMMAND_START>[^#% \t\r\n\;\,\"\'][^ \t\r\n\;\,]*{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
430 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
431
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
432 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
433
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
434 lexer_flags.looking_for_object_index = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
435 lexer_flags.at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
436
5279
bd32f770c09a [project @ 2005-04-12 21:55:31 by jwe]
jwe
parents: 5225
diff changeset
437 TOK_PUSH_AND_RETURN (tok, SQ_STRING);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
438 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
439
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
440 %{
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
441 // 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
442 // need to know if the next token is '=' or '=='.
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
443 //
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
444 // 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
445 // 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
446 // operator.
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
447 //
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
448 // 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
449 // after seeing a ']' character...
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
450
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
451 // FIXME -- we need to handle block comments here.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
452 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
453
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
454 <MATRIX_START>{SNLCMT}*\]{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
455 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*\\]{S}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
456
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
457 scan_for_comments (yytext);
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
458 fixup_column_count (yytext);
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
459
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
460 lexer_flags.looking_at_object_index.pop_front ();
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
461
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
462 lexer_flags.looking_for_object_index = true;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
463 lexer_flags.at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
464
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
465 int c = yytext[yyleng-1];
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
466 int cont_is_spc = eat_continuation ();
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
467 bool spc_gobbled = (cont_is_spc || c == ' ' || c == '\t');
5345
2781568bf951 [project @ 2005-05-10 05:31:12 by jwe]
jwe
parents: 5307
diff changeset
468 int tok_to_return = handle_close_bracket (spc_gobbled, ']');
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
469
5345
2781568bf951 [project @ 2005-05-10 05:31:12 by jwe]
jwe
parents: 5307
diff changeset
470 if (spc_gobbled)
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
471 xunput (' ', yytext);
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
472
5345
2781568bf951 [project @ 2005-05-10 05:31:12 by jwe]
jwe
parents: 5307
diff changeset
473 COUNT_TOK_AND_RETURN (tok_to_return);
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
474 }
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
475
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
476 %{
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
477 // 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
478 %}
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
479
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
480 <MATRIX_START>{SNLCMT}*\}{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
481 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*\\}{S}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
482
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
483 scan_for_comments (yytext);
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
484 fixup_column_count (yytext);
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
485
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
486 lexer_flags.looking_at_object_index.pop_front ();
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
487
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
488 lexer_flags.looking_for_object_index = true;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
489 lexer_flags.at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
490
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
491 int c = yytext[yyleng-1];
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
492 int cont_is_spc = eat_continuation ();
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
493 bool spc_gobbled = (cont_is_spc || c == ' ' || c == '\t');
5345
2781568bf951 [project @ 2005-05-10 05:31:12 by jwe]
jwe
parents: 5307
diff changeset
494 int tok_to_return = handle_close_bracket (spc_gobbled, '}');
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
495
5345
2781568bf951 [project @ 2005-05-10 05:31:12 by jwe]
jwe
parents: 5307
diff changeset
496 if (spc_gobbled)
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
497 xunput (' ', yytext);
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
498
5345
2781568bf951 [project @ 2005-05-10 05:31:12 by jwe]
jwe
parents: 5307
diff changeset
499 COUNT_TOK_AND_RETURN (tok_to_return);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
500 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
501
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
502 %{
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
503 // 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
504 // 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
505 // commas.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
506 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
507
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
508 <MATRIX_START>{S}*\,{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
509 LEXER_DEBUG ("<MATRIX_START>{S}*\\,{S}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
510
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
511 current_input_column += yyleng;
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
512
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
513 int tmp = eat_continuation ();
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
514
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
515 lexer_flags.quote_is_transpose = false;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
516 lexer_flags.convert_spaces_to_comma = true;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
517 lexer_flags.looking_for_object_index = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
518 lexer_flags.at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
519
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
520 if (! lexer_flags.looking_at_object_index.front ())
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
521 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
522 if ((tmp & ATE_NEWLINE) == ATE_NEWLINE)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
523 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
524 maybe_warn_separator_insert (';');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
525
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
526 xunput (';', yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
527 }
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
528 }
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
529
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
530 COUNT_TOK_AND_RETURN (',');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
531 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
532
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
533 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
534 // 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
535 // 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
536 // 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
537 // 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
538 %}
430
8464d5778a09 [project @ 1994-05-25 08:33:54 by jwe]
jwe
parents: 428
diff changeset
539
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
540 <MATRIX_START>{S}+ {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
541 LEXER_DEBUG ("<MATRIX_START>{S}+");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
542
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
543 current_input_column += yyleng;
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
544
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
545 lexer_flags.at_beginning_of_statement = false;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
546
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
547 int tmp = eat_continuation ();
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
548
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
549 if (! lexer_flags.looking_at_object_index.front ())
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
550 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
551 bool bin_op = next_token_is_bin_op (true);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
552 bool postfix_un_op = next_token_is_postfix_unary_op (true);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
553 bool sep_op = next_token_is_sep_op ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
554
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
555 if (! (postfix_un_op || bin_op || sep_op)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
556 && nesting_level.is_bracket_or_brace ()
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
557 && lexer_flags.convert_spaces_to_comma)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
558 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
559 if ((tmp & ATE_NEWLINE) == ATE_NEWLINE)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
560 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
561 maybe_warn_separator_insert (';');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
562
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
563 xunput (';', yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
564 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
565
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
566 lexer_flags.quote_is_transpose = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
567 lexer_flags.convert_spaces_to_comma = true;
13260
28e3e9158d70 fix bug with parsing cell array lists
John W. Eaton <jwe@octave.org>
parents: 13249
diff changeset
568 lexer_flags.looking_for_object_index = false;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
569
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
570 maybe_warn_separator_insert (',');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
571
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
572 COUNT_TOK_AND_RETURN (',');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
573 }
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
574 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
575 }
430
8464d5778a09 [project @ 1994-05-25 08:33:54 by jwe]
jwe
parents: 428
diff changeset
576
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
577 %{
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
578 // 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
579 // 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
580 // semicolons.
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
581
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
582 // FIXME -- we need to handle block comments here.
968
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
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
585 <MATRIX_START>{SNLCMT}*;{SNLCMT}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
586 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*;{SNLCMT}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
587
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
588 scan_for_comments (yytext);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
589 fixup_column_count (yytext);
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
590 eat_whitespace ();
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
591
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
592 lexer_flags.quote_is_transpose = false;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
593 lexer_flags.convert_spaces_to_comma = true;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
594 lexer_flags.looking_for_object_index = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
595 lexer_flags.at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
596
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
597 COUNT_TOK_AND_RETURN (';');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
598 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
599
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
600 %{
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
601 // 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
602 // 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
603 // semicolons.
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
604
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
605 // FIXME -- we need to handle block comments here.
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
606 %}
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
607
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
608 <MATRIX_START>{S}*{COMMENT}{SNLCMT}* |
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
609 <MATRIX_START>{S}*{NL}{SNLCMT}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
610 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
611
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
612 scan_for_comments (yytext);
1082
d1a1608f1028 [project @ 1995-01-27 22:26:33 by jwe]
jwe
parents: 1072
diff changeset
613 fixup_column_count (yytext);
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
614 eat_whitespace ();
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
615
4476
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
616 lexer_flags.quote_is_transpose = false;
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
617 lexer_flags.convert_spaces_to_comma = true;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
618 lexer_flags.at_beginning_of_statement = false;
4476
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
619
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
620 if (nesting_level.none ())
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
621 return LEXICAL_ERROR;
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
622
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
623 if (! lexer_flags.looking_at_object_index.front ()
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
624 && nesting_level.is_bracket_or_brace ())
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
625 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
626 maybe_warn_separator_insert (';');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
627
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
628 COUNT_TOK_AND_RETURN (';');
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
629 }
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
630 }
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
631
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
632 \[{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
633 LEXER_DEBUG ("\\[{S}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
634
3351
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
635 nesting_level.bracket ();
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
636
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
637 lexer_flags.looking_at_object_index.push_front (false);
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
638
1082
d1a1608f1028 [project @ 1995-01-27 22:26:33 by jwe]
jwe
parents: 1072
diff changeset
639 current_input_column += yyleng;
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
640 lexer_flags.quote_is_transpose = false;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
641 lexer_flags.convert_spaces_to_comma = true;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
642 lexer_flags.looking_for_object_index = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
643 lexer_flags.at_beginning_of_statement = false;
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
644
11464
21b5284fa78d avoid error when parsing nested functions
John W. Eaton <jwe@octave.org>
parents: 11431
diff changeset
645 if (lexer_flags.defining_func
21b5284fa78d avoid error when parsing nested functions
John W. Eaton <jwe@octave.org>
parents: 11431
diff changeset
646 && ! lexer_flags.parsed_function_name.top ())
5615
d01f07aeaec5 [project @ 2006-02-10 21:30:41 by jwe]
jwe
parents: 5570
diff changeset
647 lexer_flags.looking_at_return_list = true;
d01f07aeaec5 [project @ 2006-02-10 21:30:41 by jwe]
jwe
parents: 5570
diff changeset
648 else
d01f07aeaec5 [project @ 2006-02-10 21:30:41 by jwe]
jwe
parents: 5570
diff changeset
649 lexer_flags.looking_at_matrix_or_assign_lhs = true;
d01f07aeaec5 [project @ 2006-02-10 21:30:41 by jwe]
jwe
parents: 5570
diff changeset
650
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
651 promptflag--;
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
652 eat_whitespace ();
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
653
5102
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
654 lexer_flags.bracketflag++;
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
655 BEGIN (MATRIX_START);
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
656 COUNT_TOK_AND_RETURN ('[');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
657 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
658
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
659 \] {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
660 LEXER_DEBUG ("\\]");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
661
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
662 nesting_level.remove ();
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
663
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
664 lexer_flags.looking_at_object_index.pop_front ();
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
665
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
666 lexer_flags.looking_for_object_index = true;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
667 lexer_flags.at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
668
5102
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
669 TOK_RETURN (']');
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
670 }
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
671
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
672 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
673 // Imaginary numbers.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
674 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
675
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
676 {NUMBER}{Im} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
677 LEXER_DEBUG ("{NUMBER}{Im}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
678
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
679 handle_number ();
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
680 COUNT_TOK_AND_RETURN (IMAG_NUM);
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
681 }
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
682
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
683 %{
15466
d174210ce1ec use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
684 // 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
685 // the constant.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
686 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
687
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
688 {D}+/\.[\*/\\^\'] |
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
689 {NUMBER} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
690 LEXER_DEBUG ("{D}+/\\.[\\*/\\^\\']|{NUMBER}");
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
691 handle_number ();
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
692 COUNT_TOK_AND_RETURN (NUM);
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
693 }
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
694
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
695 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
696 // 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
697 // the <MATRIX_START> start state code above.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
698 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
699
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
700 {S}* {
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
701 current_input_column += yyleng;
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
702 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
703
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
704 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
705 // Continuation lines. Allow comments after continuations.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
706 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
707
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
708 {CONT}{S}*{NL} |
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
709 {CONT}{S}*{COMMENT} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
710 LEXER_DEBUG ("{CONT}{S}*{NL}|{CONT}{S}*{COMMENT}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
711
4037
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
712 if (yytext[0] == '\\')
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
713 gripe_matlab_incompatible_continuation ();
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
714 scan_for_comments (yytext);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
715 promptflag--;
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
716 input_line_number++;
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
717 current_input_column = 1;
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
718 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
719
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
720 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
721 // End of file.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
722 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
723
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
724 <<EOF>> {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
725 LEXER_DEBUG ("<<EOF>>");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
726
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
727 if (block_comment_nesting_level != 0)
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
728 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
729 warning ("block comment open at end of input");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
730
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
731 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
732 && ! 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
733 warning ("near line %d of file '%s.m'",
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
734 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
735 }
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
736
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
737 TOK_RETURN (END_OF_INPUT);
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
738 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
739
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
740 %{
970
9382316a8a01 [project @ 1994-12-12 06:03:34 by jwe]
jwe
parents: 969
diff changeset
741 // 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
742 // don't write directly on yytext.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
743 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
744
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
745 {IDENT}{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
746 LEXER_DEBUG ("{IDENT}{S}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
747
4238
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
748 int id_tok = handle_identifier ();
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
749
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
750 if (id_tok >= 0)
9324
29563379fa9b don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents: 8974
diff changeset
751 COUNT_TOK_AND_RETURN (id_tok);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
752 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
753
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
754 %{
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
755 // Superclass method identifiers.
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
756 %}
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
757
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
758 {IDENT}@{IDENT}{S}* |
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
759 {IDENT}@{IDENT}.{IDENT}{S}* {
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
760 LEXER_DEBUG ("{IDENT}@{IDENT}{S}*|{IDENT}@{IDENT}.{IDENT}{S}*");
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
761
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
762 int id_tok = handle_superclass_identifier ();
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
763
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
764 if (id_tok >= 0)
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
765 {
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
766 lexer_flags.looking_for_object_index = true;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
767
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
768 COUNT_TOK_AND_RETURN (id_tok);
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
769 }
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
770 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
771
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
772 %{
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
773 // Metaclass query
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
774 %}
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
775
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
776 \?{IDENT}{S}* |
14638
5b0872b5b234 fix missing backslash quoting in lexer rules
John W. Eaton <jwe@octave.org>
parents: 14510
diff changeset
777 \?{IDENT}\.{IDENT}{S}* {
5b0872b5b234 fix missing backslash quoting in lexer rules
John W. Eaton <jwe@octave.org>
parents: 14510
diff changeset
778 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
779
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
780 int id_tok = handle_meta_identifier ();
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
781
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
782 if (id_tok >= 0)
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
783 {
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
784 lexer_flags.looking_for_object_index = true;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
785
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
786 COUNT_TOK_AND_RETURN (id_tok);
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
787 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
788 }
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
789
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
790 %{
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
791 // Function handles and superclass references
4342
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe]
jwe
parents: 4323
diff changeset
792 %}
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe]
jwe
parents: 4323
diff changeset
793
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
794 "@" {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
795 LEXER_DEBUG ("@");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
796
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
797 current_input_column++;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
798
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
799 lexer_flags.quote_is_transpose = false;
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
800 lexer_flags.convert_spaces_to_comma = false;
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
801 lexer_flags.looking_at_function_handle++;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
802 lexer_flags.looking_for_object_index = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
803 lexer_flags.at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
804
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
805 COUNT_TOK_AND_RETURN ('@');
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
806
4342
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe]
jwe
parents: 4323
diff changeset
807 }
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe]
jwe
parents: 4323
diff changeset
808
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe]
jwe
parents: 4323
diff changeset
809 %{
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
810 // 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
811 // 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
812 // 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
813 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
814
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
815 {NL} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
816 LEXER_DEBUG ("{NL}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
817
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
818 input_line_number++;
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
819 current_input_column = 1;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
820
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
821 lexer_flags.quote_is_transpose = false;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
822 lexer_flags.convert_spaces_to_comma = true;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
823
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
824 if (nesting_level.none ())
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
825 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
826 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
827 COUNT_TOK_AND_RETURN ('\n');
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
828 }
4037
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
829 else if (nesting_level.is_paren ())
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
830 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
831 lexer_flags.at_beginning_of_statement = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
832 gripe_matlab_incompatible ("bare newline inside parentheses");
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
833 }
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
834 else if (nesting_level.is_bracket_or_brace ())
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
835 return LEXICAL_ERROR;
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
836 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
837
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
838 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
839 // 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
840 // operator.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
841 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
842
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
843 "'" {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
844 LEXER_DEBUG ("'");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
845
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
846 current_input_column++;
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
847 lexer_flags.convert_spaces_to_comma = true;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
848
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
849 if (lexer_flags.quote_is_transpose)
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
850 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
851 do_comma_insert_check ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
852 COUNT_TOK_AND_RETURN (QUOTE);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
853 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
854 else
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
855 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
856 int tok = handle_string ('\'');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
857 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
858 }
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
859 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
860
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
861 %{
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
862 // Double quotes always begin strings.
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
863 %}
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
864
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
865 \" {
14642
6edd02858516 lex.ll: fix think-o in previous change
John W. Eaton <jwe@octave.org>
parents: 14638
diff changeset
866 LEXER_DEBUG ("\"");
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
867
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
868 current_input_column++;
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
869 int tok = handle_string ('"');
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
870
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
871 COUNT_TOK_AND_RETURN (tok);
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
872 }
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
873
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
874 %{
8536
de1b944d5306 lex.l: finish previous change
John W. Eaton <jwe@octave.org>
parents: 8535
diff changeset
875 // Gobble comments.
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
876 %}
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
877
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
878 {CCHAR} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
879 LEXER_DEBUG ("{CCHAR}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
880
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
881 lexer_flags.looking_for_object_index = false;
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
882
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
883 xunput (yytext[0], yytext);
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
884
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
885 bool eof = false;
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
886 int tok = process_comment (false, eof);
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
887
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
888 if (eof)
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
889 TOK_RETURN (END_OF_INPUT);
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
890 else if (tok > 0)
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
891 COUNT_TOK_AND_RETURN (tok);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
892 }
440
e27d10f2e573 [project @ 1994-05-30 03:33:37 by jwe]
jwe
parents: 430
diff changeset
893
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
894 %{
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
895 // Block comments.
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
896 %}
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
897
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
898 ^{S}*{CCHAR}\{{S}*{NL} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
899 LEXER_DEBUG ("^{S}*{CCHAR}\\{{S}*{NL}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
900
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
901 lexer_flags.looking_for_object_index = false;
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
902
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
903 input_line_number++;
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
904 current_input_column = 1;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
905 block_comment_nesting_level++;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
906 promptflag--;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
907
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
908 bool eof = false;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
909 process_comment (true, eof);
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
910 }
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
911
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
912 %{
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
913 // Other operators.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
914 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
915
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
916 ":" { LEXER_DEBUG (":"); BIN_OP_RETURN (':', false, false); }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
917
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
918 ".+" { LEXER_DEBUG (".+"); XBIN_OP_RETURN (EPLUS, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
919 ".-" { LEXER_DEBUG (".-"); XBIN_OP_RETURN (EMINUS, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
920 ".*" { LEXER_DEBUG (".*"); BIN_OP_RETURN (EMUL, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
921 "./" { LEXER_DEBUG ("./"); BIN_OP_RETURN (EDIV, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
922 ".\\" { LEXER_DEBUG (".\\"); BIN_OP_RETURN (ELEFTDIV, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
923 ".^" { LEXER_DEBUG (".^"); BIN_OP_RETURN (EPOW, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
924 ".**" { LEXER_DEBUG (".**"); XBIN_OP_RETURN (EPOW, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
925 ".'" { LEXER_DEBUG (".'"); do_comma_insert_check (); BIN_OP_RETURN (TRANSPOSE, true, false); }
12627
002948ae5bc0 fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents: 12174
diff changeset
926 "++" { LEXER_DEBUG ("++"); do_comma_insert_check (); XBIN_OP_RETURN_INTERNAL (PLUS_PLUS, true, false, true); }
002948ae5bc0 fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents: 12174
diff changeset
927 "--" { LEXER_DEBUG ("--"); 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
928 "<=" { 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
929 "==" { 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
930 "~=" { 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
931 "!=" { 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
932 ">=" { 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
933 "&" { 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
934 "|" { 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
935 "<" { 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
936 ">" { 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
937 "+" { LEXER_DEBUG ("+"); BIN_OP_RETURN ('+', false, false); }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
938 "-" { LEXER_DEBUG ("-"); BIN_OP_RETURN ('-', false, false); }
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
939 "*" { LEXER_DEBUG ("*"); BIN_OP_RETURN ('*', false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
940 "/" { LEXER_DEBUG ("/"); BIN_OP_RETURN ('/', false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
941 "\\" { 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
942 ";" { LEXER_DEBUG (";"); BIN_OP_RETURN (';', true, true); }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
943 "," { LEXER_DEBUG (","); BIN_OP_RETURN (',', true, ! lexer_flags.looking_at_object_index.front ()); }
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
944 "^" { LEXER_DEBUG ("^"); BIN_OP_RETURN (POW, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
945 "**" { LEXER_DEBUG ("**"); XBIN_OP_RETURN (POW, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
946 "=" { LEXER_DEBUG ("="); BIN_OP_RETURN ('=', true, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
947 "&&" { 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
948 "||" { 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
949 "<<" { LEXER_DEBUG ("<<"); XBIN_OP_RETURN (LSHIFT, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
950 ">>" { 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
951
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
952 {NOT} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
953 LEXER_DEBUG ("{NOT}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
954
4037
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
955 if (yytext[0] == '~')
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
956 BIN_OP_RETURN (EXPR_NOT, false, false);
4037
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
957 else
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
958 XBIN_OP_RETURN (EXPR_NOT, false, false);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
959 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
960
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
961 "(" {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
962 LEXER_DEBUG ("(");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
963
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
964 // 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
965 // 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
966 // 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
967 // the matching close paren).
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
968
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
969 lexer_flags.looking_at_object_index.push_front
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
970 (lexer_flags.looking_for_object_index);
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
971
4131
597fbc55ea40 [project @ 2002-10-29 17:12:53 by jwe]
jwe
parents: 4101
diff changeset
972 lexer_flags.looking_at_indirect_ref = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
973 lexer_flags.looking_for_object_index = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
974 lexer_flags.at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
975
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
976 nesting_level.paren ();
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
977 promptflag--;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
978
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
979 TOK_RETURN ('(');
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
980 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
981
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
982 ")" {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
983 LEXER_DEBUG (")");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
984
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
985 nesting_level.remove ();
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
986 current_input_column++;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
987
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
988 lexer_flags.looking_at_object_index.pop_front ();
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
989
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
990 lexer_flags.quote_is_transpose = true;
13237
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents: 12801
diff changeset
991 lexer_flags.convert_spaces_to_comma
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents: 12801
diff changeset
992 = (nesting_level.is_bracket_or_brace ()
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents: 12801
diff changeset
993 && ! lexer_flags.looking_at_anon_fcn_args);
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
994 lexer_flags.looking_for_object_index = true;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
995 lexer_flags.at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
996
13237
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents: 12801
diff changeset
997 if (lexer_flags.looking_at_anon_fcn_args)
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents: 12801
diff changeset
998 lexer_flags.looking_at_anon_fcn_args = false;
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents: 12801
diff changeset
999
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
1000 do_comma_insert_check ();
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1001
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
1002 COUNT_TOK_AND_RETURN (')');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
1003 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
1004
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1005 "." {
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1006 LEXER_DEBUG (".");
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1007
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1008 lexer_flags.looking_for_object_index = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
1009 lexer_flags.at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1010
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1011 TOK_RETURN ('.');
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1012 }
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1013
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1014 "+=" { 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
1015 "-=" { 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
1016 "*=" { 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
1017 "/=" { 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
1018 "\\=" { 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
1019 ".+=" { 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
1020 ".-=" { 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
1021 ".*=" { 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
1022 "./=" { 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
1023 ".\\=" { 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
1024 {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
1025 {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
1026 "&=" { 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
1027 "|=" { 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
1028 "<<=" { 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
1029 ">>=" { 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
1030
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
1031 \{{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1032 LEXER_DEBUG ("\\{{S}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1033
3351
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
1034 nesting_level.brace ();
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
1035
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1036 lexer_flags.looking_at_object_index.push_front
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1037 (lexer_flags.looking_for_object_index);
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1038
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
1039 current_input_column += yyleng;
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
1040 lexer_flags.quote_is_transpose = false;
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
1041 lexer_flags.convert_spaces_to_comma = true;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1042 lexer_flags.looking_for_object_index = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
1043 lexer_flags.at_beginning_of_statement = false;
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
1044
3351
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
1045 promptflag--;
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
1046 eat_whitespace ();
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
1047
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
1048 lexer_flags.braceflag++;
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
1049 BEGIN (MATRIX_START);
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
1050 COUNT_TOK_AND_RETURN ('{');
3351
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
1051 }
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
1052
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
1053 "}" {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1054 LEXER_DEBUG ("}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1055
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1056 lexer_flags.looking_at_object_index.pop_front ();
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1057
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1058 lexer_flags.looking_for_object_index = true;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
1059 lexer_flags.at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1060
3351
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
1061 nesting_level.remove ();
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
1062
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
1063 TOK_RETURN ('}');
3351
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
1064 }
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
1065
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
1066 %{
2066
a75d2a5d6783 [project @ 1996-04-11 21:20:43 by jwe]
jwe
parents: 2042
diff changeset
1067 // Unrecognized input is a lexical error.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
1068 %}
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1069
2042
31f4f775b8c6 [project @ 1996-03-28 09:06:28 by jwe]
jwe
parents: 1994
diff changeset
1070 . {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1071 LEXER_DEBUG (".");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1072
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1073 xunput (yytext[0], yytext);
4248
eef64f3f9a4c [project @ 2002-12-31 00:00:20 by jwe]
jwe
parents: 4241
diff changeset
1074
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
1075 int c = text_yyinput ();
4248
eef64f3f9a4c [project @ 2002-12-31 00:00:20 by jwe]
jwe
parents: 4241
diff changeset
1076
eef64f3f9a4c [project @ 2002-12-31 00:00:20 by jwe]
jwe
parents: 4241
diff changeset
1077 if (c != EOF)
4240
8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe]
jwe
parents: 4238
diff changeset
1078 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1079 current_input_column++;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1080
15466
d174210ce1ec use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
1081 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
1082 undo_string_escape (static_cast<char> (c)), c,
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1083 input_line_number, current_input_column);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1084
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1085 return LEXICAL_ERROR;
4240
8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe]
jwe
parents: 4238
diff changeset
1086 }
8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe]
jwe
parents: 4238
diff changeset
1087 else
8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe]
jwe
parents: 4238
diff changeset
1088 TOK_RETURN (END_OF_INPUT);
2066
a75d2a5d6783 [project @ 1996-04-11 21:20:43 by jwe]
jwe
parents: 2042
diff changeset
1089 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1090
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1091 %%
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1092
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1093 // GAG.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1094 //
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1095 // If we're reading a matrix and the next character is '[', make sure
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1096 // that we insert a comma ahead of it.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1097
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
1098 void
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1099 do_comma_insert_check (void)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1100 {
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
1101 int spc_gobbled = eat_continuation ();
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
1102
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
1103 int c = text_yyinput ();
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
1104
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1105 xunput (c, yytext);
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
1106
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
1107 if (spc_gobbled)
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1108 xunput (' ', yytext);
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1109
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1110 lexer_flags.do_comma_insert = (! lexer_flags.looking_at_object_index.front ()
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1111 && lexer_flags.bracketflag && c == '[');
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1112 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1113
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1114 // 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
1115 // 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
1116 // doing any parsing.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1117
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1118 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1119 reset_parser (void)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1120 {
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1121 // Start off on the right foot.
4323
0990c9b77109 [project @ 2003-02-14 07:36:26 by jwe]
jwe
parents: 4318
diff changeset
1122 BEGIN (INITIAL);
4318
115bffcecfd3 [project @ 2003-02-13 05:52:16 by jwe]
jwe
parents: 4264
diff changeset
1123
3883
69b6bd271277 [project @ 2002-04-02 21:05:10 by jwe]
jwe
parents: 3880
diff changeset
1124 parser_end_of_input = false;
4238
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
1125
14329
8d1ae996c122 also save and restore symbol table context in parser (bug #35448)
John W. Eaton <jwe@octave.org>
parents: 14294
diff changeset
1126 parser_symtab_context.clear ();
287
6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe]
jwe
parents: 246
diff changeset
1127
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1128 // We do want a prompt by default.
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1129 promptflag = 1;
287
6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe]
jwe
parents: 246
diff changeset
1130
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1131 // We are not in a block comment.
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1132 block_comment_nesting_level = 0;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1133
3351
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
1134 // Error may have occurred inside some brackets, braces, or parentheses.
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
1135 nesting_level.clear ();
287
6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe]
jwe
parents: 246
diff changeset
1136
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1137 // Clear out the stack of token info used to track line and column
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1138 // numbers.
143
7849db4b6dbc [project @ 1993-10-04 02:36:45 by jwe]
jwe
parents: 120
diff changeset
1139 while (! token_stack.empty ())
4214
b9317f3973ec [project @ 2002-12-04 04:57:01 by jwe]
jwe
parents: 4208
diff changeset
1140 {
b9317f3973ec [project @ 2002-12-04 04:57:01 by jwe]
jwe
parents: 4208
diff changeset
1141 delete token_stack.top ();
b9317f3973ec [project @ 2002-12-04 04:57:01 by jwe]
jwe
parents: 4208
diff changeset
1142 token_stack.pop ();
b9317f3973ec [project @ 2002-12-04 04:57:01 by jwe]
jwe
parents: 4208
diff changeset
1143 }
287
6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe]
jwe
parents: 246
diff changeset
1144
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1145 // Can be reset by defining a function.
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
1146 if (! (reading_script_file || reading_fcn_file || reading_classdef_file))
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
1147 {
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
1148 current_input_column = 1;
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1149 input_line_number = command_editor::current_command_number ();
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
1150 }
287
6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe]
jwe
parents: 246
diff changeset
1151
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1152 // 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
1153 // input.
14074
f90c3facfac3 don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents: 13973
diff changeset
1154
f90c3facfac3 don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents: 13973
diff changeset
1155 if (! quitting_gracefully
f90c3facfac3 don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents: 13973
diff changeset
1156 && (interactive || forced_interactive)
3880
c21ae2c5840f [project @ 2002-03-26 02:23:06 by jwe]
jwe
parents: 3867
diff changeset
1157 && ! (reading_fcn_file
14074
f90c3facfac3 don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents: 13973
diff changeset
1158 || reading_classdef_file
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1159 || reading_script_file
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1160 || get_input_from_eval_string
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1161 || input_from_startup_file))
287
6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe]
jwe
parents: 246
diff changeset
1162 yyrestart (stdin);
991
18be848f10a9 [project @ 1994-12-15 06:06:46 by jwe]
jwe
parents: 985
diff changeset
1163
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1164 // Clear the buffer for help text.
4426
51a0dcde8778 [project @ 2003-06-13 19:16:37 by jwe]
jwe
parents: 4410
diff changeset
1165 while (! help_buf.empty ())
51a0dcde8778 [project @ 2003-06-13 19:16:37 by jwe]
jwe
parents: 4410
diff changeset
1166 help_buf.pop ();
1755
3a9462b655f1 [project @ 1996-01-22 04:47:22 by jwe]
jwe
parents: 1740
diff changeset
1167
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1168 // Reset other flags.
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1169 lexer_flags.init ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1170 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1171
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1172 static void
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1173 display_character (char c)
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1174 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1175 if (isgraph (c))
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1176 std::cerr << c;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1177 else
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1178 switch (c)
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1179 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1180 case 0:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1181 std::cerr << "NUL";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1182 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1183
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1184 case 1:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1185 std::cerr << "SOH";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1186 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1187
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1188 case 2:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1189 std::cerr << "STX";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1190 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1191
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1192 case 3:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1193 std::cerr << "ETX";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1194 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1195
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1196 case 4:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1197 std::cerr << "EOT";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1198 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1199
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1200 case 5:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1201 std::cerr << "ENQ";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1202 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1203
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1204 case 6:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1205 std::cerr << "ACK";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1206 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1207
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1208 case 7:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1209 std::cerr << "\\a";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1210 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1211
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1212 case 8:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1213 std::cerr << "\\b";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1214 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1215
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1216 case 9:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1217 std::cerr << "\\t";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1218 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1219
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1220 case 10:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1221 std::cerr << "\\n";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1222 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1223
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1224 case 11:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1225 std::cerr << "\\v";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1226 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1227
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1228 case 12:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1229 std::cerr << "\\f";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1230 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1231
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1232 case 13:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1233 std::cerr << "\\r";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1234 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1235
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1236 case 14:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1237 std::cerr << "SO";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1238 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1239
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1240 case 15:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1241 std::cerr << "SI";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1242 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1243
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1244 case 16:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1245 std::cerr << "DLE";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1246 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1247
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1248 case 17:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1249 std::cerr << "DC1";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1250 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1251
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1252 case 18:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1253 std::cerr << "DC2";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1254 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1255
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1256 case 19:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1257 std::cerr << "DC3";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1258 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1259
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1260 case 20:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1261 std::cerr << "DC4";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1262 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1263
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1264 case 21:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1265 std::cerr << "NAK";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1266 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1267
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1268 case 22:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1269 std::cerr << "SYN";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1270 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1271
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1272 case 23:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1273 std::cerr << "ETB";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1274 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1275
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1276 case 24:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1277 std::cerr << "CAN";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1278 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1279
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1280 case 25:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1281 std::cerr << "EM";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1282 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1283
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1284 case 26:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1285 std::cerr << "SUB";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1286 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1287
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1288 case 27:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1289 std::cerr << "ESC";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1290 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1291
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1292 case 28:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1293 std::cerr << "FS";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1294 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1295
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1296 case 29:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1297 std::cerr << "GS";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1298 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1299
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1300 case 30:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1301 std::cerr << "RS";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1302 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1303
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1304 case 31:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1305 std::cerr << "US";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1306 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1307
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1308 case 32:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1309 std::cerr << "SPACE";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1310 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1311
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1312 case 127:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1313 std::cerr << "DEL";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1314 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1315 }
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1316 }
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1317
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1318 static int
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1319 text_yyinput (void)
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1320 {
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1321 int c = yyinput ();
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1322
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1323 if (lexer_debug_flag)
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1324 {
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1325 std::cerr << "I: ";
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1326 display_character (c);
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1327 std::cerr << std::endl;
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1328 }
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1329
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1330 // Convert CRLF into just LF and single CR into LF.
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1331
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1332 if (c == '\r')
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1333 {
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1334 c = yyinput ();
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1335
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1336 if (lexer_debug_flag)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1337 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1338 std::cerr << "I: ";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1339 display_character (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1340 std::cerr << std::endl;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1341 }
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1342
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1343 if (c != '\n')
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1344 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1345 xunput (c, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1346 c = '\n';
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1347 }
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1348 }
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1349
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1350 if (c == '\n')
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1351 input_line_number++;
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1352
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1353 return c;
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1354 }
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1355
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1356 static void
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1357 xunput (char c, char *buf)
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1358 {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1359 if (lexer_debug_flag)
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1360 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1361 std::cerr << "U: ";
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1362 display_character (c);
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1363 std::cerr << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1364 }
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1365
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1366 if (c == '\n')
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1367 input_line_number--;
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1368
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1369 yyunput (c, buf);
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1370 }
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1371
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1372 // If we read some newlines, we need figure out what column we're
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1373 // really looking at.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1374
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1375 static void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1376 fixup_column_count (char *s)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1377 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1378 char c;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1379 while ((c = *s++) != '\0')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1380 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1381 if (c == '\n')
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1382 {
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1383 input_line_number++;
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1384 current_input_column = 1;
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1385 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1386 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1387 current_input_column++;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1388 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1389 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1390
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1391 // 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
1392
3332
7c03933635c6 [project @ 1999-11-02 06:57:12 by jwe]
jwe
parents: 3263
diff changeset
1393 int
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1394 yywrap (void)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1395 {
287
6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe]
jwe
parents: 246
diff changeset
1396 return 1;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1397 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1398
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1399 // Tell us all what the current buffer is.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1400
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1401 YY_BUFFER_STATE
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1402 current_buffer (void)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1403 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1404 return YY_CURRENT_BUFFER;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1405 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1406
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1407 // Create a new buffer.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1408
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1409 YY_BUFFER_STATE
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1410 create_buffer (FILE *f)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1411 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1412 return yy_create_buffer (f, YY_BUF_SIZE);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1413 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1414
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1415 // Start reading a new buffer.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1416
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1417 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1418 switch_to_buffer (YY_BUFFER_STATE buf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1419 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1420 yy_switch_to_buffer (buf);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1421 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1422
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1423 // Delete a buffer.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1424
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1425 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1426 delete_buffer (YY_BUFFER_STATE buf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1427 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1428 yy_delete_buffer (buf);
14510
c20de00a66a9 avoid memory error in 'octave --eval 0' (bug #36038)
Max Brister <max@2bass.com>
parents: 14329
diff changeset
1429
c20de00a66a9 avoid memory error in 'octave --eval 0' (bug #36038)
Max Brister <max@2bass.com>
parents: 14329
diff changeset
1430 // 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
1431 if (! current_buffer ())
c20de00a66a9 avoid memory error in 'octave --eval 0' (bug #36038)
Max Brister <max@2bass.com>
parents: 14329
diff changeset
1432 yyin = 0;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1433 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1434
13973
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1435 // Delete all buffers from the stack.
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1436 void
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1437 clear_all_buffers (void)
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1438 {
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1439 while (current_buffer ())
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1440 octave_pop_buffer_state ();
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1441 }
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1442
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1443 void
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1444 cleanup_parser (void)
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1445 {
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1446 reset_parser ();
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1447
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1448 clear_all_buffers ();
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1449 }
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1450
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1451 // Restore a buffer (for unwind-prot).
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1452
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1453 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1454 restore_input_buffer (void *buf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1455 {
2861
6dcb8e1c9bb2 [project @ 1997-04-13 23:21:38 by jwe]
jwe
parents: 2857
diff changeset
1456 switch_to_buffer (static_cast<YY_BUFFER_STATE> (buf));
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1457 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1458
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1459 // Delete a buffer (for unwind-prot).
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1460
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1461 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1462 delete_input_buffer (void *buf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1463 {
2861
6dcb8e1c9bb2 [project @ 1997-04-13 23:21:38 by jwe]
jwe
parents: 2857
diff changeset
1464 delete_buffer (static_cast<YY_BUFFER_STATE> (buf));
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1465 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1466
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1467 static bool
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1468 inside_any_object_index (void)
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1469 {
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1470 bool retval = false;
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1471
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1472 for (std::list<bool>::const_iterator i = lexer_flags.looking_at_object_index.begin ();
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1473 i != lexer_flags.looking_at_object_index.end (); i++)
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1474 {
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1475 if (*i)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1476 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1477 retval = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1478 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1479 }
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1480 }
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1481
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1482 return retval;
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1483 }
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1484
4238
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
1485 // 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
1486
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1487 static int
4867
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
1488 is_keyword_token (const std::string& s)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1489 {
3805
44386b0e53da [project @ 2001-03-01 16:54:31 by jwe]
jwe
parents: 3802
diff changeset
1490 int l = input_line_number;
44386b0e53da [project @ 2001-03-01 16:54:31 by jwe]
jwe
parents: 3802
diff changeset
1491 int c = current_input_column;
44386b0e53da [project @ 2001-03-01 16:54:31 by jwe]
jwe
parents: 3802
diff changeset
1492
1823
5cdd59e7579a [project @ 1996-02-01 12:45:05 by jwe]
jwe
parents: 1755
diff changeset
1493 int len = s.length ();
922
708827b941b4 [project @ 1994-11-14 22:14:13 by jwe]
jwe
parents: 916
diff changeset
1494
5088
7830f271a53f [project @ 2004-12-01 19:54:45 by jwe]
jwe
parents: 5035
diff changeset
1495 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
1496
1497
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1497 if (kw)
143
7849db4b6dbc [project @ 1993-10-04 02:36:45 by jwe]
jwe
parents: 120
diff changeset
1498 {
1497
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1499 yylval.tok_val = 0;
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1500
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1501 switch (kw->kw_id)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1502 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1503 case break_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1504 case catch_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1505 case continue_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1506 case else_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1507 case otherwise_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1508 case return_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1509 case unwind_protect_cleanup_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1510 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1511 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1512
14294
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1513 case static_kw:
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1514 if ((reading_fcn_file || reading_script_file
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1515 || reading_classdef_file)
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1516 && ! curr_fcn_file_full_name.empty ())
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1517 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
1518 "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'",
14294
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1519 input_line_number,
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1520 curr_fcn_file_full_name.c_str ());
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1521 else
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1522 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
1523 "the 'static' keyword is obsolete and will be removed from a future version of Octave; please use 'persistent' instead; near line %d",
14294
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1524 input_line_number);
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1525 // fall through ...
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1526
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1527 case persistent_kw:
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1528 break;
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1529
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1530 case case_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1531 case elseif_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1532 case global_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1533 case until_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1534 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1535
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1536 case end_kw:
14645
cbc00b587f36 also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents: 14642
diff changeset
1537 if (inside_any_object_index ()
cbc00b587f36 also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents: 14642
diff changeset
1538 || (! reading_classdef_file
cbc00b587f36 also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents: 14642
diff changeset
1539 && (lexer_flags.defining_func
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1540 && ! (lexer_flags.looking_at_return_list
14647
7c463e490062 * lex.ll: fix paren mismatch problem in previous change.
John W. Eaton <jwe@octave.org>
parents: 14645
diff changeset
1541 || lexer_flags.parsed_function_name.top ()))))
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1542 return 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1543
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1544 yylval.tok_val = new token (token::simple_end, l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1545 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1546 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1547
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1548 case end_try_catch_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1549 yylval.tok_val = new token (token::try_catch_end, l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1550 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1551 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1552
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1553 case end_unwind_protect_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1554 yylval.tok_val = new token (token::unwind_protect_end, l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1555 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1556 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1557
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1558 case endfor_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1559 yylval.tok_val = new token (token::for_end, l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1560 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1561 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1562
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1563 case endfunction_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1564 yylval.tok_val = new token (token::function_end, l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1565 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1566 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1567
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1568 case endif_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1569 yylval.tok_val = new token (token::if_end, l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1570 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1571 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1572
13246
0c69a564f2be additional parfor changes
John W. Eaton <jwe@octave.org>
parents: 13245
diff changeset
1573 case endparfor_kw:
0c69a564f2be additional parfor changes
John W. Eaton <jwe@octave.org>
parents: 13245
diff changeset
1574 yylval.tok_val = new token (token::parfor_end, l, c);
0c69a564f2be additional parfor changes
John W. Eaton <jwe@octave.org>
parents: 13245
diff changeset
1575 lexer_flags.at_beginning_of_statement = true;
0c69a564f2be additional parfor changes
John W. Eaton <jwe@octave.org>
parents: 13245
diff changeset
1576 break;
0c69a564f2be additional parfor changes
John W. Eaton <jwe@octave.org>
parents: 13245
diff changeset
1577
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1578 case endswitch_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1579 yylval.tok_val = new token (token::switch_end, l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1580 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1581 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1582
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1583 case endwhile_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1584 yylval.tok_val = new token (token::while_end, l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1585 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1586 break;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1587
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1588 case endclassdef_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1589 yylval.tok_val = new token (token::classdef_end, l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1590 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1591 break;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1592
13249
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1593 case endenumeration_kw:
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1594 yylval.tok_val = new token (token::enumeration_end, l, c);
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1595 lexer_flags.at_beginning_of_statement = true;
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1596 break;
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1597
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1598 case endevents_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1599 yylval.tok_val = new token (token::events_end, l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1600 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1601 break;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1602
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1603 case endmethods_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1604 yylval.tok_val = new token (token::methods_end, l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1605 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1606 break;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1607
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1608 case endproperties_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1609 yylval.tok_val = new token (token::properties_end, l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1610 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1611 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1612
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
1613
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1614 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
1615 case parfor_kw:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1616 case while_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1617 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1618 lexer_flags.looping++;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1619 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1620
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1621 case do_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1622 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1623 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1624 lexer_flags.looping++;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1625 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1626
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1627 case try_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1628 case unwind_protect_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1629 lexer_flags.at_beginning_of_statement = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1630 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1631 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1632
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1633 case if_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1634 case switch_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1635 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1636 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1637
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1638 case get_kw:
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1639 case set_kw:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1640 // 'get' and 'set' are keywords in classdef method
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1641 // declarations.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1642 if (! lexer_flags.maybe_classdef_get_set_method)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1643 return 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1644 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1645
13249
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1646 case enumeration_kw:
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1647 case events_kw:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1648 case methods_kw:
13249
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1649 case properties_kw:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1650 // 'properties', 'methods' and 'events' are keywords for
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1651 // classdef blocks.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1652 if (! lexer_flags.parsing_classdef)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1653 return 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1654 // fall through ...
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1655
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1656 case classdef_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1657 // 'classdef' is always a keyword.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1658 promptflag--;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1659 break;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1660
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1661 case function_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1662 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1663
11367
b2191ebea12f don't process input_event_hook when we are parsing a function
John W. Eaton <jwe@octave.org>
parents: 11217
diff changeset
1664 lexer_flags.defining_func++;
11464
21b5284fa78d avoid error when parsing nested functions
John W. Eaton <jwe@octave.org>
parents: 11431
diff changeset
1665 lexer_flags.parsed_function_name.push (false);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1666
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1667 if (! (reading_fcn_file || reading_script_file
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1668 || reading_classdef_file))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1669 input_line_number = 1;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1670 break;
1497
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1671
3174
390d5e396682 [project @ 1998-05-04 16:36:17 by jwe]
jwe
parents: 3165
diff changeset
1672 case magic_file_kw:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1673 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1674 if ((reading_fcn_file || reading_script_file
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1675 || reading_classdef_file)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1676 && ! curr_fcn_file_full_name.empty ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1677 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
1678 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1679 yylval.tok_val = new token ("stdin", l, c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1680 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1681 break;
3174
390d5e396682 [project @ 1998-05-04 16:36:17 by jwe]
jwe
parents: 3165
diff changeset
1682
390d5e396682 [project @ 1998-05-04 16:36:17 by jwe]
jwe
parents: 3165
diff changeset
1683 case magic_line_kw:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1684 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
1685 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1686
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1687 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1688 panic_impossible ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1689 }
1497
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1690
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1691 if (! yylval.tok_val)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1692 yylval.tok_val = new token (l, c);
1497
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1693
476
de9de43ad21f [project @ 1994-06-24 16:17:47 by jwe]
jwe
parents: 446
diff changeset
1694 token_stack.push (yylval.tok_val);
1497
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1695
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1696 return kw->tok;
143
7849db4b6dbc [project @ 1993-10-04 02:36:45 by jwe]
jwe
parents: 120
diff changeset
1697 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1698
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1699 return 0;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1700 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1701
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
1702 static bool
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1703 is_variable (const std::string& name)
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
1704 {
8001
ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context
John W. Eaton <jwe@octave.org>
parents: 7898
diff changeset
1705 return (symbol_table::is_variable (name)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1706 || (lexer_flags.pending_local_variables.find (name)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1707 != lexer_flags.pending_local_variables.end ()));
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
1708 }
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
1709
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1710 static std::string
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1711 grab_block_comment (stream_reader& reader, bool& eof)
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1712 {
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1713 std::string buf;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1714
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1715 bool at_bol = true;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1716 bool look_for_marker = false;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1717
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1718 bool warned_incompatible = false;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1719
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1720 int c = 0;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1721
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1722 while ((c = reader.getc ()) != EOF)
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1723 {
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1724 current_input_column++;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1725
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1726 if (look_for_marker)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1727 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1728 at_bol = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1729 look_for_marker = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1730
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1731 if (c == '{' || c == '}')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1732 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1733 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
1734
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1735 int type = c;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1736
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1737 bool done = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1738
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1739 while ((c = reader.getc ()) != EOF && ! done)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1740 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1741 current_input_column++;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1742
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1743 switch (c)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1744 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1745 case ' ':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1746 case '\t':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1747 tmp_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1748 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1749
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1750 case '\n':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1751 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1752 current_input_column = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1753 at_bol = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1754 done = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1755
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1756 if (type == '{')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1757 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1758 block_comment_nesting_level++;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1759 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1760 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1761 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1762 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1763 block_comment_nesting_level--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1764 promptflag++;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1765
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1766 if (block_comment_nesting_level == 0)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1767 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1768 buf += grab_comment_block (reader, true, eof);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1769
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1770 return buf;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1771 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1772 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1773 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1774 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1775
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1776 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1777 at_bol = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1778 tmp_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1779 buf += tmp_buf;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1780 done = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1781 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1782 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1783 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1784 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1785 }
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1786
7898
cce16b4e0970 lex.l (grab_block_comment): Use parens around || expression within && expression
John W. Eaton <jwe@octave.org>
parents: 7728
diff changeset
1787 if (at_bol && (c == '%' || c == '#'))
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1788 {
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1789 if (c == '#' && ! warned_incompatible)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1790 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1791 warned_incompatible = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1792 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1793 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1794
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1795 at_bol = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1796 look_for_marker = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1797 }
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1798 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1799 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1800 buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1801
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1802 if (c == '\n')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1803 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1804 current_input_column = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1805 at_bol = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1806 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1807 }
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1808 }
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1809
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1810 if (c == EOF)
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1811 eof = true;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1812
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1813 return buf;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1814 }
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1815
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1816 std::string
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1817 grab_comment_block (stream_reader& reader, bool at_bol,
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1818 bool& eof)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1819 {
4426
51a0dcde8778 [project @ 2003-06-13 19:16:37 by jwe]
jwe
parents: 4410
diff changeset
1820 std::string buf;
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1821
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1822 // 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
1823 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
1824
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1825 // 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
1826 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
1827
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1828 bool warned_incompatible = false;
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
1829
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1830 int c = 0;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1831
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1832 while ((c = reader.getc ()) != EOF)
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1833 {
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1834 current_input_column++;
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1835
2300
9484969866d2 [project @ 1996-06-24 07:13:26 by jwe]
jwe
parents: 2200
diff changeset
1836 if (begin_comment)
10315
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 if (c == '%' || c == '#')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1839 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1840 at_bol = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1841 continue;
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 else if (at_bol && c == '{')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1844 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1845 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
1846
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1847 bool done = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1848
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1849 while ((c = reader.getc ()) != EOF && ! done)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1850 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1851 current_input_column++;
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 switch (c)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1854 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1855 case ' ':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1856 case '\t':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1857 tmp_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1858 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1859
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1860 case '\n':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1861 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1862 current_input_column = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1863 at_bol = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1864 done = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1865
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1866 block_comment_nesting_level++;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1867 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1868
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1869 buf += grab_block_comment (reader, eof);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1870
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1871 in_comment = false;
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 if (eof)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1874 goto done;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1875 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1876 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1877
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1878 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1879 at_bol = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1880 tmp_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1881 buf += tmp_buf;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1882 done = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1883 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1884 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1885 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1886 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1887 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1888 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1889 at_bol = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1890 begin_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1891 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1892 }
2300
9484969866d2 [project @ 1996-06-24 07:13:26 by jwe]
jwe
parents: 2200
diff changeset
1893
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1894 if (in_comment)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1895 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1896 buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1897
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1898 if (c == '\n')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1899 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1900 at_bol = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1901 current_input_column = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1902 in_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1903
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1904 // FIXME -- bailing out here prevents things like
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1905 //
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1906 // octave> # comment
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1907 // octave> x = 1
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1908 //
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1909 // from failing at the command line, while still
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1910 // allowing blocks of comments to be grabbed properly
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1911 // 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
1912 // 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
1913 // 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
1914 // better way of collecting these comments...
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1915 if (! (reading_fcn_file || reading_script_file))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1916 goto done;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1917 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1918 }
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1919 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1920 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1921 switch (c)
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 ' ':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1924 case '\t':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1925 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1926
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1927 case '#':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1928 if (! warned_incompatible)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1929 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1930 warned_incompatible = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1931 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1932 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1933 // fall through...
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1934
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1935 case '%':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1936 in_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1937 begin_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1938 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1939
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1940 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1941 current_input_column--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1942 reader.ungetc (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1943 goto done;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1944 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1945 }
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1946 }
991
18be848f10a9 [project @ 1994-12-15 06:06:46 by jwe]
jwe
parents: 985
diff changeset
1947
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1948 done:
991
18be848f10a9 [project @ 1994-12-15 06:06:46 by jwe]
jwe
parents: 985
diff changeset
1949
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1950 if (c == EOF)
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1951 eof = true;
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1952
4426
51a0dcde8778 [project @ 2003-06-13 19:16:37 by jwe]
jwe
parents: 4410
diff changeset
1953 return buf;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1954 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1955
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1956 class
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1957 flex_stream_reader : public 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
1958 {
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1959 public:
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1960 flex_stream_reader (char *buf_arg) : stream_reader (), buf (buf_arg) { }
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1961
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
1962 int getc (void) { return ::text_yyinput (); }
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1963 int ungetc (int c) { ::xunput (c, buf); return 0; }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1964
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1965 private:
12122
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
1966
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
1967 // No copying!
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
1968
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
1969 flex_stream_reader (const flex_stream_reader&);
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
1970
12174
db1f49eaba6b whitespace fixes
John W. Eaton <jwe@octave.org>
parents: 12122
diff changeset
1971 flex_stream_reader& operator = (const flex_stream_reader&);
12122
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
1972
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1973 char *buf;
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1974 };
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1975
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1976 static int
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1977 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
1978 {
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1979 eof = false;
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1980
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1981 std::string help_txt;
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1982
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1983 if (! help_buf.empty ())
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1984 help_txt = help_buf.top ();
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1985
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1986 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
1987
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1988 // 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
1989 // initially looking at a block comment.
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1990
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1991 std::string txt = start_in_block
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1992 ? grab_block_comment (flex_reader, eof)
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1993 : 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
1994
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1995 if (lexer_debug_flag)
8536
de1b944d5306 lex.l: finish previous change
John W. Eaton <jwe@octave.org>
parents: 8535
diff changeset
1996 std::cerr << "C: " << txt << std::endl;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1997
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1998 if (help_txt.empty () && nesting_level.none ())
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1999 {
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2000 if (! help_buf.empty ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2001 help_buf.pop ();
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2002
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2003 help_buf.push (txt);
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2004 }
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
2005
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
2006 octave_comment_buffer::append (txt);
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2007
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2008 current_input_column = 1;
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2009 lexer_flags.quote_is_transpose = false;
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2010 lexer_flags.convert_spaces_to_comma = true;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2011 lexer_flags.at_beginning_of_statement = true;
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2012
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2013 if (YY_START == COMMAND_START)
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2014 BEGIN (INITIAL);
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2015
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2016 if (nesting_level.none ())
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2017 return '\n';
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2018 else if (nesting_level.is_bracket_or_brace ())
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2019 return ';';
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2020 else
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2021 return 0;
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2022 }
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
2023
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2024 // Return 1 if the given character matches any character in the given
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2025 // string.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2026
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2027 static bool
2804
eedc2f3f61f7 [project @ 1997-03-11 04:34:50 by jwe]
jwe
parents: 2764
diff changeset
2028 match_any (char c, const char *s)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2029 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2030 char tmp;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2031 while ((tmp = *s++) != '\0')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2032 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2033 if (c == tmp)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2034 return true;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2035 }
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2036 return false;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2037 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2038
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2039 // Given information about the spacing surrounding an operator,
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2040 // return 1 if it looks like it should be treated as a binary
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2041 // operator. For example,
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2042 //
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2043 // [ 1 + 2 ] or [ 1+ 2] or [ 1+2 ] ==> binary
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2044 //
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2045 // [ 1 +2 ] ==> unary
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2046
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2047 static bool
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2048 looks_like_bin_op (bool spc_prev, int next_char)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2049 {
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2050 bool spc_next = (next_char == ' ' || next_char == '\t');
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2051
608
a675e03540dd [project @ 1994-08-13 23:50:19 by jwe]
jwe
parents: 584
diff changeset
2052 return ((spc_prev && spc_next) || ! spc_prev);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2053 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2054
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2055 // 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
2056 // replaced by a single LF.
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2057
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2058 static bool
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2059 next_token_is_sep_op (void)
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2060 {
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2061 bool retval = false;
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2062
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
2063 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
2064
13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents: 7723
diff changeset
2065 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
2066
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2067 xunput (c, yytext);
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2068
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2069 return retval;
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2070 }
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2071
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2072 // 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
2073 // 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
2074
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2075 static bool
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2076 next_token_is_postfix_unary_op (bool spc_prev)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2077 {
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2078 bool un_op = false;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2079
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
2080 int c0 = text_yyinput ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2081
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2082 if (c0 == '\'' && ! spc_prev)
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2083 {
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2084 un_op = true;
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2085 }
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2086 else if (c0 == '.')
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2087 {
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
2088 int c1 = text_yyinput ();
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2089 un_op = (c1 == '\'');
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2090 xunput (c1, yytext);
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2091 }
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2092 else if (c0 == '+')
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2093 {
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
2094 int c1 = text_yyinput ();
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2095 un_op = (c1 == '+');
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2096 xunput (c1, yytext);
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2097 }
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2098 else if (c0 == '-')
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2099 {
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
2100 int c1 = text_yyinput ();
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2101 un_op = (c1 == '-');
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2102 xunput (c1, yytext);
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2103 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2104
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2105 xunput (c0, yytext);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2106
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2107 return un_op;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2108 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2109
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2110 // 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
2111 // operator.
1521
b3e4ca4f75a0 [project @ 1995-10-04 05:10:36 by jwe]
jwe
parents: 1520
diff changeset
2112 //
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2113 // 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
2114 // 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
2115 // 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
2116 // 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
2117 //
3779
3001e15555e9 [project @ 2001-02-07 04:47:51 by jwe]
jwe
parents: 3774
diff changeset
2118 // 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
2119 // (e.g., the characters '[' 'a' ' ' '+' '\' LFD 'b' ']') will be
3001e15555e9 [project @ 2001-02-07 04:47:51 by jwe]
jwe
parents: 3774
diff changeset
2120 // parsed as a binary operator.
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2121
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2122 static bool
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2123 next_token_is_bin_op (bool spc_prev)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2124 {
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2125 bool bin_op = false;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2126
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
2127 int c0 = text_yyinput ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2128
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2129 switch (c0)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2130 {
777
a2f9d3fd720c [project @ 1994-10-07 14:01:53 by jwe]
jwe
parents: 767
diff changeset
2131 case '+':
a2f9d3fd720c [project @ 1994-10-07 14:01:53 by jwe]
jwe
parents: 767
diff changeset
2132 case '-':
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2133 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2134 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2135
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2136 switch (c1)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2137 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2138 case '+':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2139 case '-':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2140 // Unary ops, spacing doesn't matter.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2141 break;
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 case '=':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2144 // Binary ops, spacing doesn't matter.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2145 bin_op = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2146 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2147
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2148 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2149 // Could be either, spacing matters.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2150 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
2151 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2152 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2153
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2154 xunput (c1, yytext);
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2155 }
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2156 break;
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2157
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2158 case ':':
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2159 case '/':
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2160 case '\\':
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2161 case '^':
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2162 // Always a binary op (may also include /=, \=, and ^=).
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2163 bin_op = true;
1276
cbdf7db98554 [project @ 1995-04-24 15:31:24 by jwe]
jwe
parents: 1273
diff changeset
2164 break;
cbdf7db98554 [project @ 1995-04-24 15:31:24 by jwe]
jwe
parents: 1273
diff changeset
2165
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2166 // .+ .- ./ .\ .^ .* .**
1554
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe]
jwe
parents: 1521
diff changeset
2167 case '.':
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe]
jwe
parents: 1521
diff changeset
2168 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2169 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2170
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2171 if (match_any (c1, "+-/\\^*"))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2172 // Always a binary op (may also include .+=, .-=, ./=, ...).
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2173 bin_op = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2174 else if (! isdigit (c1) && c1 != ' ' && c1 != '\t' && c1 != '.')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2175 // A structure element reference is a binary op.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2176 bin_op = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2177
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2178 xunput (c1, yytext);
1554
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe]
jwe
parents: 1521
diff changeset
2179 }
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe]
jwe
parents: 1521
diff changeset
2180 break;
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe]
jwe
parents: 1521
diff changeset
2181
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2182 // = == & && | || * **
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2183 case '=':
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2184 case '&':
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2185 case '|':
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2186 case '*':
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2187 // Always a binary op (may also include ==, &&, ||, **).
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2188 bin_op = true;
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2189 break;
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2190
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2191 // < <= <> > >=
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2192 case '<':
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2193 case '>':
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2194 // Always a binary op (may also include <=, <>, >=).
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2195 bin_op = true;
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2196 break;
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2197
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2198 // ~= !=
777
a2f9d3fd720c [project @ 1994-10-07 14:01:53 by jwe]
jwe
parents: 767
diff changeset
2199 case '~':
a2f9d3fd720c [project @ 1994-10-07 14:01:53 by jwe]
jwe
parents: 767
diff changeset
2200 case '!':
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2201 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2202 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2203
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2204 // ~ and ! can be unary ops, so require following =.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2205 if (c1 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2206 bin_op = true;
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 xunput (c1, yytext);
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2209 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2210 break;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2211
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2212 default:
1276
cbdf7db98554 [project @ 1995-04-24 15:31:24 by jwe]
jwe
parents: 1273
diff changeset
2213 break;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2214 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2215
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2216 xunput (c0, yytext);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2217
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2218 return bin_op;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2219 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2220
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2221 // Used to delete trailing white space from tokens.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2222
3536
e8fbc8c3d6d9 [project @ 2000-02-02 12:01:00 by jwe]
jwe
parents: 3523
diff changeset
2223 static std::string
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2224 strip_trailing_whitespace (char *s)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2225 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
2226 std::string retval = s;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2227
1823
5cdd59e7579a [project @ 1996-02-01 12:45:05 by jwe]
jwe
parents: 1755
diff changeset
2228 size_t pos = retval.find_first_of (" \t");
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2229
8021
85184151822e fix typo in NPOS change
John W. Eaton <jwe@octave.org>
parents: 8019
diff changeset
2230 if (pos != std::string::npos)
1823
5cdd59e7579a [project @ 1996-02-01 12:45:05 by jwe]
jwe
parents: 1755
diff changeset
2231 retval.resize (pos);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2232
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2233 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2234 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2235
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
2236 // 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
2237
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2238 static void
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2239 scan_for_comments (const char *text)
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2240 {
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2241 std::string comment_buf;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2242
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2243 bool in_comment = false;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2244 bool beginning_of_comment = false;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2245
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2246 int len = strlen (text);
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2247 int i = 0;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2248
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2249 while (i < len)
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2250 {
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2251 char c = text[i++];
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2252
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2253 switch (c)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2254 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2255 case '%':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2256 case '#':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2257 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2258 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2259 if (! beginning_of_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2260 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2261 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2262 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2263 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2264 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2265 in_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2266 beginning_of_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2267 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2268 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2269
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2270 case '\n':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2271 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2272 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2273 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2274 octave_comment_buffer::append (comment_buf);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2275 comment_buf.resize (0);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2276 in_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2277 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2278 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2279 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2280
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2281 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2282 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2283 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2284 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2285 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2286 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2287 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2288 }
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2289 }
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2290
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2291 if (! comment_buf.empty ())
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2292 octave_comment_buffer::append (comment_buf);
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2293 }
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2294
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2295 // Discard whitespace, including comments and continuations.
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
2296 //
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
2297 // Return value is logical OR of the following values:
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
2298 //
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
2299 // ATE_NOTHING : no spaces to eat
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
2300 // ATE_SPACE_OR_TAB : space or tab in input
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
2301 // ATE_NEWLINE : bare new line in input
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2302
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
2303 // 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
2304
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
2305 static yum_yum
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2306 eat_whitespace (void)
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2307 {
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
2308 yum_yum retval = ATE_NOTHING;
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2309
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2310 std::string comment_buf;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2311
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2312 bool in_comment = false;
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2313 bool beginning_of_comment = false;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2314
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2315 int c = 0;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2316
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
2317 while ((c = text_yyinput ()) != EOF)
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2318 {
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2319 current_input_column++;
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2320
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2321 switch (c)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2322 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2323 case ' ':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2324 case '\t':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2325 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2326 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2327 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2328 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2329 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2330 retval |= ATE_SPACE_OR_TAB;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2331 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2332
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2333 case '\n':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2334 retval |= ATE_NEWLINE;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2335 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2336 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2337 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2338 octave_comment_buffer::append (comment_buf);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2339 comment_buf.resize (0);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2340 in_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2341 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2342 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2343 current_input_column = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2344 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2345
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2346 case '#':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2347 case '%':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2348 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2349 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2350 if (! beginning_of_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2351 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2352 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2353 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2354 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2355 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2356 in_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2357 beginning_of_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2358 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2359 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2360
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2361 case '.':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2362 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2363 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2364 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2365 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2366 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2367 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2368 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2369 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2370 if (have_ellipsis_continuation ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2371 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2372 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2373 goto done;
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
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2376 case '\\':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2377 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2378 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2379 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2380 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2381 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2382 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2383 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2384 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2385 if (have_continuation ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2386 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2387 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2388 goto done;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2389 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2390
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2391 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2392 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2393 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2394 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2395 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2396 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2397 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2398 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2399 goto done;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2400 }
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2401 }
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2402
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2403 if (! comment_buf.empty ())
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2404 octave_comment_buffer::append (comment_buf);
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2405
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2406 done:
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2407 xunput (c, yytext);
1082
d1a1608f1028 [project @ 1995-01-27 22:26:33 by jwe]
jwe
parents: 1072
diff changeset
2408 current_input_column--;
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2409 return retval;
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2410 }
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2411
3220
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2412 static inline bool
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2413 looks_like_hex (const char *s, int len)
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2414 {
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2415 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
2416 }
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2417
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2418 static void
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2419 handle_number (void)
972
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2420 {
3220
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2421 double value = 0.0;
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2422 int nread = 0;
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2423
3598
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2424 if (looks_like_hex (yytext, strlen (yytext)))
3220
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2425 {
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2426 unsigned long ival;
3598
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2427
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2428 nread = sscanf (yytext, "%lx", &ival);
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2429
3220
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2430 value = static_cast<double> (ival);
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2431 }
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2432 else
3598
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2433 {
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2434 char *tmp = strsave (yytext);
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2435
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2436 char *idx = strpbrk (tmp, "Dd");
2621
337a09dd1c06 [project @ 1997-01-24 21:49:41 by jwe]
jwe
parents: 2614
diff changeset
2437
3598
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2438 if (idx)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2439 *idx = 'e';
3598
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2440
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2441 nread = sscanf (tmp, "%lf", &value);
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2442
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2443 delete [] tmp;
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2444 }
972
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2445
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
2446 // 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
2447
972
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2448 assert (nread == 1);
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2449
3988
9a73d0e7e737 [project @ 2002-07-12 19:25:04 by jwe]
jwe
parents: 3985
diff changeset
2450 lexer_flags.quote_is_transpose = true;
9a73d0e7e737 [project @ 2002-07-12 19:25:04 by jwe]
jwe
parents: 3985
diff changeset
2451 lexer_flags.convert_spaces_to_comma = true;
11217
521373e25613 correctly parse {1 2 {3 4}}
John W. Eaton <jwe@octave.org>
parents: 10426
diff changeset
2452 lexer_flags.looking_for_object_index = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2453 lexer_flags.at_beginning_of_statement = false;
972
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2454
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2455 yylval.tok_val = new token (value, yytext, input_line_number,
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2456 current_input_column);
972
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2457
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2458 token_stack.push (yylval.tok_val);
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2459
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2460 current_input_column += yyleng;
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2461
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2462 do_comma_insert_check ();
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2463 }
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2464
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2465 // 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
2466 // 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
2467 // and including the new line character.
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2468 //
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2469 // 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
2470 // 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
2471 // If non-whitespace characters are found before comment
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2472 // characters, return 0. Otherwise, return 1.
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2473
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
2474 // 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
2475
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2476 static bool
3096
ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe]
jwe
parents: 3079
diff changeset
2477 have_continuation (bool trailing_comments_ok)
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2478 {
5765
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5615
diff changeset
2479 std::ostringstream buf;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2480
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2481 std::string comment_buf;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2482
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2483 bool in_comment = false;
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2484 bool beginning_of_comment = false;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2485
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2486 int c = 0;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2487
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
2488 while ((c = text_yyinput ()) != EOF)
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2489 {
3802
4f1a26a730fd [project @ 2001-02-26 20:26:14 by jwe]
jwe
parents: 3796
diff changeset
2490 buf << static_cast<char> (c);
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2491
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2492 switch (c)
10315
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 ' ':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2495 case '\t':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2496 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2497 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2498 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2499 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2500 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2501 break;
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 case '%':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2504 case '#':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2505 if (trailing_comments_ok)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2506 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2507 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2508 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2509 if (! beginning_of_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2510 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2511 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2512 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2513 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2514 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2515 in_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2516 beginning_of_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2517 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2518 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2519 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2520 goto cleanup;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2521 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2522
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2523 case '\n':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2524 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2525 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2526 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2527 octave_comment_buffer::append (comment_buf);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2528 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2529 current_input_column = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2530 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2531 gripe_matlab_incompatible_continuation ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2532 return true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2533
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2534 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2535 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2536 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2537 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2538 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2539 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2540 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2541 goto cleanup;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2542 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2543 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2544 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2545
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2546 xunput (c, yytext);
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2547 return false;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2548
3096
ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe]
jwe
parents: 3079
diff changeset
2549 cleanup:
4051
b79da8779a0e [project @ 2002-08-17 19:38:32 by jwe]
jwe
parents: 4037
diff changeset
2550
5765
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5615
diff changeset
2551 std::string s = buf.str ();
4051
b79da8779a0e [project @ 2002-08-17 19:38:32 by jwe]
jwe
parents: 4037
diff changeset
2552
b79da8779a0e [project @ 2002-08-17 19:38:32 by jwe]
jwe
parents: 4037
diff changeset
2553 int len = s.length ();
b79da8779a0e [project @ 2002-08-17 19:38:32 by jwe]
jwe
parents: 4037
diff changeset
2554 while (len--)
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2555 xunput (s[len], yytext);
3096
ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe]
jwe
parents: 3079
diff changeset
2556
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2557 return false;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2558 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2559
15466
d174210ce1ec use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
2560 // 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
2561 // 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
2562 // line character.
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2563
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2564 static bool
3096
ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe]
jwe
parents: 3079
diff changeset
2565 have_ellipsis_continuation (bool trailing_comments_ok)
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2566 {
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
2567 char c1 = text_yyinput ();
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2568 if (c1 == '.')
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2569 {
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
2570 char c2 = text_yyinput ();
1091
54abf1b3a8e9 [project @ 1995-02-02 00:30:14 by jwe]
jwe
parents: 1088
diff changeset
2571 if (c2 == '.' && have_continuation (trailing_comments_ok))
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2572 return true;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2573 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2574 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2575 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2576 xunput (c1, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2577 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2578 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2579 else
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2580 xunput (c1, yytext);
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2581
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2582 return false;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2583 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2584
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2585 // 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
2586 // whitespace on the next line.
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
2587 //
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
2588 // Return value is the same as described for eat_whitespace().
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2589
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
2590 static yum_yum
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2591 eat_continuation (void)
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2592 {
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
2593 int retval = ATE_NOTHING;
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2594
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
2595 int c = text_yyinput ();
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2596
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2597 if ((c == '.' && have_ellipsis_continuation ())
3105
f936c7f5074f [project @ 1997-11-19 04:36:17 by jwe]
jwe
parents: 3103
diff changeset
2598 || (c == '\\' && have_continuation ()))
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2599 retval = eat_whitespace ();
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2600 else
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2601 xunput (c, yytext);
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2602
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2603 return retval;
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2604 }
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2605
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2606 static int
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2607 handle_string (char delim)
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2608 {
5765
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5615
diff changeset
2609 std::ostringstream buf;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2610
3805
44386b0e53da [project @ 2001-03-01 16:54:31 by jwe]
jwe
parents: 3802
diff changeset
2611 int bos_line = input_line_number;
44386b0e53da [project @ 2001-03-01 16:54:31 by jwe]
jwe
parents: 3802
diff changeset
2612 int bos_col = current_input_column;
44386b0e53da [project @ 2001-03-01 16:54:31 by jwe]
jwe
parents: 3802
diff changeset
2613
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2614 int c;
1031
59f5eb2d5eb3 [project @ 1995-01-15 21:11:11 by jwe]
jwe
parents: 1019
diff changeset
2615 int escape_pending = 0;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2616
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
2617 while ((c = text_yyinput ()) != EOF)
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2618 {
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2619 current_input_column++;
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2620
3105
f936c7f5074f [project @ 1997-11-19 04:36:17 by jwe]
jwe
parents: 3103
diff changeset
2621 if (c == '\\')
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2622 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2623 if (delim == '\'' || escape_pending)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2624 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2625 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2626 escape_pending = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2627 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2628 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2629 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2630 if (have_continuation (false))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2631 escape_pending = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2632 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2633 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2634 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2635 escape_pending = 1;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2636 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2637 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2638 continue;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2639 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2640 else if (c == '.')
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2641 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2642 if (delim == '\'' || ! have_ellipsis_continuation (false))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2643 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2644 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2645 else if (c == '\n')
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2646 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2647 error ("unterminated string constant");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2648 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2649 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2650 else if (c == delim)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2651 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2652 if (escape_pending)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2653 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2654 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2655 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2656 c = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2657 if (c == delim)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2658 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
2659 buf << static_cast<char> (c);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2660 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2661 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2662 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
2663 std::string s;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2664 xunput (c, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2665
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2666 if (delim == '\'')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2667 s = buf.str ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2668 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2669 s = do_string_escapes (buf.str ());
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2670
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2671 lexer_flags.quote_is_transpose = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2672 lexer_flags.convert_spaces_to_comma = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2673
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2674 yylval.tok_val = new token (s, bos_line, bos_col);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2675 token_stack.push (yylval.tok_val);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2676
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2677 if (delim == '"')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2678 gripe_matlab_incompatible ("\" used as string delimiter");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2679 else if (delim == '\'')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2680 gripe_single_quote_string ();
3400
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
2681
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
2682 lexer_flags.looking_for_object_index = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2683 lexer_flags.at_beginning_of_statement = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2684
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2685 return delim == '"' ? DQ_STRING : SQ_STRING;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2686 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2687 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2688 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2689 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2690 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2691 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2692 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2693
1031
59f5eb2d5eb3 [project @ 1995-01-15 21:11:11 by jwe]
jwe
parents: 1019
diff changeset
2694 escape_pending = 0;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2695 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2696
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2697 return LEXICAL_ERROR;
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2698 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2699
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2700 static bool
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2701 next_token_is_assign_op (void)
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2702 {
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2703 bool retval = false;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2704
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
2705 int c0 = text_yyinput ();
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2706
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2707 switch (c0)
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2708 {
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2709 case '=':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2710 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2711 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2712 xunput (c1, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2713 if (c1 != '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2714 retval = true;
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2715 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2716 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2717
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2718 case '+':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2719 case '-':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2720 case '*':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2721 case '/':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2722 case '\\':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2723 case '&':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2724 case '|':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2725 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2726 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2727 xunput (c1, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2728 if (c1 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2729 retval = true;
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2730 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2731 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2732
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2733 case '.':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2734 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2735 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2736 if (match_any (c1, "+-*/\\"))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2737 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2738 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2739 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2740 if (c2 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2741 retval = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2742 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2743 xunput (c1, yytext);
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2744 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2745 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2746
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2747 case '>':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2748 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2749 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2750 if (c1 == '>')
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 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2753 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2754 if (c2 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2755 retval = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2756 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2757 xunput (c1, yytext);
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2758 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2759 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2760
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2761 case '<':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2762 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2763 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2764 if (c1 == '<')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2765 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2766 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2767 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2768 if (c2 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2769 retval = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2770 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2771 xunput (c1, yytext);
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2772 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2773 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2774
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2775 default:
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2776 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2777 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2778
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2779 xunput (c0, yytext);
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2780
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2781 return retval;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2782 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2783
4633
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2784 static bool
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2785 next_token_is_index_op (void)
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2786 {
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
2787 int c = text_yyinput ();
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2788 xunput (c, yytext);
4633
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2789 return c == '(' || c == '{';
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2790 }
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2791
4612
d44675070f1a [project @ 2003-11-14 19:49:56 by jwe]
jwe
parents: 4608
diff changeset
2792 static int
d44675070f1a [project @ 2003-11-14 19:49:56 by jwe]
jwe
parents: 4608
diff changeset
2793 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
2794 {
4612
d44675070f1a [project @ 2003-11-14 19:49:56 by jwe]
jwe
parents: 4608
diff changeset
2795 int retval = bracket_type;
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2796
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
2797 if (! nesting_level.none ())
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2798 {
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
2799 nesting_level.remove ();
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2800
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2801 if (bracket_type == ']')
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2802 lexer_flags.bracketflag--;
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2803 else if (bracket_type == '}')
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2804 lexer_flags.braceflag--;
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2805 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2806 panic_impossible ();
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2807 }
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2808
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2809 if (lexer_flags.bracketflag == 0 && lexer_flags.braceflag == 0)
4323
0990c9b77109 [project @ 2003-02-14 07:36:26 by jwe]
jwe
parents: 4318
diff changeset
2810 BEGIN (INITIAL);
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2811
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
2812 if (bracket_type == ']'
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
2813 && next_token_is_assign_op ()
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
2814 && ! lexer_flags.looking_at_return_list)
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2815 {
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2816 retval = CLOSE_BRACE;
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2817 }
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2818 else if ((lexer_flags.bracketflag || lexer_flags.braceflag)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2819 && lexer_flags.convert_spaces_to_comma
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2820 && (nesting_level.is_bracket ()
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2821 || (nesting_level.is_brace ()
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2822 && ! lexer_flags.looking_at_object_index.front ())))
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2823 {
4633
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2824 bool index_op = next_token_is_index_op ();
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2825
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2826 // 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
2827 //
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2828 // [x{i}{j}] or [x{i}(j)]
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2829 //
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2830 // but do if we are looking at
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2831 //
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2832 // [x{i} {j}] or [x{i} (j)]
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2833
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2834 if (spc_gobbled || ! (bracket_type == '}' && index_op))
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2835 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2836 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
2837
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2838 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
2839
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2840 bool sep_op = next_token_is_sep_op ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2841
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2842 if (! (postfix_un_op || bin_op || sep_op))
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 maybe_warn_separator_insert (',');
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 xunput (',', yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2847 return retval;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2848 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2849 }
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2850 }
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2851
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2852 lexer_flags.quote_is_transpose = true;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2853 lexer_flags.convert_spaces_to_comma = true;
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2854
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2855 return retval;
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2856 }
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2857
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2858 static void
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2859 maybe_unput_comma (int spc_gobbled)
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2860 {
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2861 if (nesting_level.is_bracket ()
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2862 || (nesting_level.is_brace ()
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2863 && ! lexer_flags.looking_at_object_index.front ()))
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2864 {
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2865 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
2866
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2867 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
2868
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
2869 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
2870 int c2 = text_yyinput ();
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
2871
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2872 xunput (c2, yytext);
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2873 xunput (c1, yytext);
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
2874
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2875 int sep_op = next_token_is_sep_op ();
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
2876
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2877 int dot_op = (c1 == '.'
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2878 && (isalpha (c2) || isspace (c2) || c2 == '_'));
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
2879
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
2880 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
2881 return;
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
2882
3985
fa0ae9105656 [project @ 2002-07-11 04:02:00 by jwe]
jwe
parents: 3974
diff changeset
2883 int index_op = (c1 == '(' || c1 == '{');
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
2884
4476
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
2885 // 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
2886 // a comma.
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
2887
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
2888 if (index_op && ! spc_gobbled)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2889 return;
4476
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
2890
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
2891 maybe_warn_separator_insert (',');
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
2892
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
2893 xunput (',', yytext);
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2894 }
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2895 }
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2896
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2897 static bool
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2898 next_token_can_follow_bin_op (void)
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2899 {
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2900 std::stack<char> buf;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2901
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2902 int c = EOF;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2903
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2904 // Skip whitespace in current statement on current line
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2905 while (true)
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2906 {
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2907 c = text_yyinput ();
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2908
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
2909 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
2910
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
2911 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
2912 break;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2913 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2914
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2915 // Restore input.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2916 while (! buf.empty ())
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2917 {
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2918 xunput (buf.top (), yytext);
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2919
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2920 buf.pop ();
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2921 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2922
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2923 return (isalnum (c) || match_any (c, "!\"'(-[_{~"));
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2924 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2925
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2926 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
2927 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
2928 {
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents: 10048
diff changeset
2929 // 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
2930 // 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
2931
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents: 10048
diff changeset
2932 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
2933 || 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
2934 || 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
2935 || 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
2936 || 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
2937 }
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents: 10048
diff changeset
2938
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents: 10048
diff changeset
2939 static bool
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2940 looks_like_command_arg (void)
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2941 {
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2942 bool retval = true;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2943
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2944 int c0 = text_yyinput ();
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2945
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2946 switch (c0)
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2947 {
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2948 // = ==
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2949 case '=':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
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
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2953 if (c1 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2954 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2955 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2956
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2957 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2958 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2959 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2960
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2961 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2962 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2963 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2964 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2965
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2966 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2967 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2968 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2969
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2970 case '(':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2971 case '{':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2972 // Indexing.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2973 retval = false;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2974 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2975
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2976 case '\n':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2977 // EOL.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2978 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2979
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2980 case '\'':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2981 case '"':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2982 // Beginning of a character string.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2983 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2984
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2985 // + - ++ -- += -=
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2986 case '+':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2987 case '-':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2988 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2989 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2990
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2991 switch (c1)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2992 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2993 case '\n':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2994 // EOL.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2995 case '+':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2996 case '-':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2997 // Unary ops, spacing doesn't matter.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2998 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2999
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3000 case '\t':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3001 case ' ':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3002 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3003 if (next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3004 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3005 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3006 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3007
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3008 case '=':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3009 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3010 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3011
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3012 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3013 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3014 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3015
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3016 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3017 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3018 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3019 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3020
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3021 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3022 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3023 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3024
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3025 case ':':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3026 case '/':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3027 case '\\':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3028 case '^':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3029 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3030 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3031
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3032 if (! match_any (c1, ",;\n") && (c1 == ' ' || c1 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3033 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3034 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3035
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3036 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3037 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3038 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3039
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3040 // .+ .- ./ .\ .^ .* .**
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3041 case '.':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3042 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3043 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3044
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3045 if (match_any (c1, "+-/\\^*"))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3046 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3047 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3048
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3049 if (c2 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3050 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3051 int c3 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3052
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3053 if (! match_any (c3, ",;\n") && (c3 == ' ' || c3 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3054 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3055 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3056
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3057 xunput (c3, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3058 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3059 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
3060 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3061 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3062
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3063 xunput (c2, yytext);
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 else if (! match_any (c1, ",;\n")
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3066 && (! isdigit (c1) && c1 != ' ' && c1 != '\t'
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3067 && c1 != '.'))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3068 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3069 // Structure reference. FIXME -- is this a complete check?
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3070
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3071 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3072 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3073
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3074 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3075 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3076 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3077
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3078 // & && | || * **
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3079 case '&':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3080 case '|':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3081 case '*':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3082 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3083 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3084
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3085 if (c1 == c0)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3086 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3087 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3088
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3089 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3090 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3091 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3092
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3093 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3094 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3095 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
3096 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3097 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3098
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3099 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3100 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3101 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3102
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3103 // < <= > >=
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3104 case '<':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3105 case '>':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3106 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3107 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3108
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3109 if (c1 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3110 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3111 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3112
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3113 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3114 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3115 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3116
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3117 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3118 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3119 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
3120 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3121 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3122
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3123 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3124 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3125 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3126
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3127 // ~= !=
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3128 case '~':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3129 case '!':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3130 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3131 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3132
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3133 // ~ and ! can be unary ops, so require following =.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3134 if (c1 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3135 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3136 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3137
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3138 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3139 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3140 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3141
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3142 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3143 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3144 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
3145 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3146 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3147
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3148 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3149 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3150 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3151
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3152 default:
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3153 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3154 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3155
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3156 xunput (c0, yytext);
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 return retval;
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
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3161 static int
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3162 handle_superclass_identifier (void)
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3163 {
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3164 int c = yytext[yyleng-1];
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3165
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3166 std::string meth = strip_trailing_whitespace (yytext);
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3167
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3168 int cont_is_spc = eat_continuation ();
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3169
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3170 int spc_gobbled = (cont_is_spc || c == ' ' || c == '\t');
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3171
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3172 size_t pos = meth.find ("@");
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3173 std::string cls = meth.substr (pos + 1);
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3174 meth = meth.substr (0, pos);
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3175
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3176 std::string pkg;
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3177 pos = cls.find (".");
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3178 if (pos != std::string::npos)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3179 {
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3180 pkg = cls.substr (0, pos);
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3181 cls = cls.substr (pos + 1);
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3182 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3183
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3184 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
3185 || is_keyword_token (pkg));
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3186 if (kw_token)
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3187 {
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3188 error ("method, class, and package names may not be keywords");
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3189 return LEXICAL_ERROR;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3190 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3191
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3192 yylval.tok_val = new token (meth, pkg, cls, input_line_number,
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3193 current_input_column);
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3194 token_stack.push (yylval.tok_val);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3195
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3196 do_comma_insert_check ();
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3197 maybe_unput_comma (spc_gobbled);
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3198 current_input_column += yyleng;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3199
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3200 return SUPERCLASSREF;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3201 }
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3202
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3203 static int
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3204 handle_meta_identifier (void)
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3205 {
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3206 int c = yytext[yyleng-1];
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3207
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3208 std::string cls = strip_trailing_whitespace (yytext).substr (1);
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3209
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3210 int cont_is_spc = eat_continuation ();
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3211
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3212 int spc_gobbled = (cont_is_spc || c == ' ' || c == '\t');
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3213
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3214 std::string pkg;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3215 size_t pos = cls.find (".");
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3216 if (pos != std::string::npos)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3217 {
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3218 pkg = cls.substr (0, pos);
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3219 cls = cls.substr (pos + 1);
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3220 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3221
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3222 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
3223 if (kw_token)
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3224 {
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3225 error ("class and package names may not be keywords");
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3226 return LEXICAL_ERROR;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3227 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3228
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3229 yylval.tok_val = new token (pkg, cls, input_line_number,
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3230 current_input_column);
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3231 token_stack.push (yylval.tok_val);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3232
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3233 do_comma_insert_check ();
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3234 maybe_unput_comma (spc_gobbled);
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3235 current_input_column += yyleng;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3236
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3237 return METAQUERY;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3238 }
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3239
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
3240 // 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
3241 // an identifier. Handles keywords. Return -1 if the identifier
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
3242 // should be ignored.
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
3243
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3244 static int
3974
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3245 handle_identifier (void)
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3246 {
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3247 bool at_bos = lexer_flags.at_beginning_of_statement;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3248
3974
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3249 std::string tok = strip_trailing_whitespace (yytext);
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3250
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3251 int c = yytext[yyleng-1];
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3252
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3253 int cont_is_spc = eat_continuation ();
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3254
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3255 int spc_gobbled = (cont_is_spc || c == ' ' || c == '\t');
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3256
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
3257 // If we are expecting a structure element, avoid recognizing
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
3258 // 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
3259 // 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
3260 // decide whether to insert a comma.
747
6182de8cb3b7 [project @ 1994-09-30 15:09:36 by jwe]
jwe
parents: 661
diff changeset
3261
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3262 if (lexer_flags.looking_at_indirect_ref)
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
3263 {
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
3264 do_comma_insert_check ();
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
3265
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
3266 maybe_unput_comma (spc_gobbled);
2819
ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe]
jwe
parents: 2804
diff changeset
3267
ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe]
jwe
parents: 2804
diff changeset
3268 yylval.tok_val = new token (tok, input_line_number,
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3269 current_input_column);
2819
ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe]
jwe
parents: 2804
diff changeset
3270
ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe]
jwe
parents: 2804
diff changeset
3271 token_stack.push (yylval.tok_val);
ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe]
jwe
parents: 2804
diff changeset
3272
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3273 lexer_flags.quote_is_transpose = true;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3274 lexer_flags.convert_spaces_to_comma = true;
9324
29563379fa9b don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents: 8974
diff changeset
3275 lexer_flags.looking_for_object_index = true;
2819
ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe]
jwe
parents: 2804
diff changeset
3276
ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe]
jwe
parents: 2804
diff changeset
3277 current_input_column += yyleng;
ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe]
jwe
parents: 2804
diff changeset
3278
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
3279 return STRUCT_ELT;
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
3280 }
747
6182de8cb3b7 [project @ 1994-09-30 15:09:36 by jwe]
jwe
parents: 661
diff changeset
3281
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3282 lexer_flags.at_beginning_of_statement = false;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3283
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3284 // The is_keyword_token may reset
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3285 // lexer_flags.at_beginning_of_statement. For example, if it sees
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3286 // 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
3287 // statement.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3288
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3289 int kw_token = is_keyword_token (tok);
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3290
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3291 // 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
3292 // 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
3293 // statement.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3294
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3295 if (lexer_flags.looking_at_function_handle)
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3296 {
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3297 if (kw_token)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3298 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3299 error ("function handles may not refer to keywords");
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 return LEXICAL_ERROR;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3302 }
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3303 else
10315
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 yylval.tok_val = new token (tok, input_line_number,
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3306 current_input_column);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3307
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3308 token_stack.push (yylval.tok_val);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3309
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3310 current_input_column += yyleng;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3311 lexer_flags.quote_is_transpose = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3312 lexer_flags.convert_spaces_to_comma = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3313 lexer_flags.looking_for_object_index = true;
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 return FCN_HANDLE;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3316 }
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3317 }
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3318
5102
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
3319 // 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
3320 // Keywords can be followed by identifiers.
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3321
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3322 if (kw_token)
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3323 {
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3324 if (kw_token >= 0)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3325 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3326 current_input_column += yyleng;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3327 lexer_flags.quote_is_transpose = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3328 lexer_flags.convert_spaces_to_comma = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3329 lexer_flags.looking_for_object_index = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3330 }
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3331
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3332 return kw_token;
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3333 }
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3334
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3335 // 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
3336
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
3337 int c1 = text_yyinput ();
3480
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3338
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3339 bool next_tok_is_eq = false;
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3340 if (c1 == '=')
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3341 {
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
3342 int c2 = text_yyinput ();
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
3343 xunput (c2, yytext);
3480
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3344
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3345 if (c2 != '=')
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3346 next_tok_is_eq = true;
3480
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3347 }
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3348
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
3349 xunput (c1, yytext);
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
3350
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3351 // Kluge alert.
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3352 //
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3353 // 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
3354 // arguments.
76411ce43c05 [project @ 1997-02-26 07:52:14 by jwe]
jwe
parents: 2716
diff changeset
3355 //
15466
d174210ce1ec use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3356 // 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
3357 // 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
3358 // 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
3359 // as a variable in the current symbol table.
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3360
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3361 if (! is_variable (tok))
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3362 {
10052
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents: 10048
diff changeset
3363 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
3364 && looks_like_command_arg ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3365 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3366 BEGIN (COMMAND_START);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3367 }
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3368 else if (next_tok_is_eq
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3369 || lexer_flags.looking_at_decl_list
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3370 || lexer_flags.looking_at_return_list
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3371 || (lexer_flags.looking_at_parameter_list
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3372 && ! lexer_flags.looking_at_initializer_expression))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3373 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3374 symbol_table::force_variable (tok);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3375 }
8001
ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context
John W. Eaton <jwe@octave.org>
parents: 7898
diff changeset
3376 else if (lexer_flags.looking_at_matrix_or_assign_lhs)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3377 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3378 lexer_flags.pending_local_variables.insert (tok);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3379 }
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3380 }
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3381
4234
90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe]
jwe
parents: 4233
diff changeset
3382 // 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
3383 // transformation of the end keyword...
90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe]
jwe
parents: 4233
diff changeset
3384
90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe]
jwe
parents: 4233
diff changeset
3385 if (tok == "end")
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3386 tok = "__end__";
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3387
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
3388 yylval.tok_val = new token (&(symbol_table::insert (tok)),
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3389 input_line_number, current_input_column);
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
3390
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3391 token_stack.push (yylval.tok_val);
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3392
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3393 // 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
3394 // (if needed).
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3395
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3396 lexer_flags.convert_spaces_to_comma = true;
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3397
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3398 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
3399 {
5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe]
jwe
parents: 2861
diff changeset
3400 lexer_flags.quote_is_transpose = true;
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3401
2877
5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe]
jwe
parents: 2861
diff changeset
3402 do_comma_insert_check ();
5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe]
jwe
parents: 2861
diff changeset
3403
5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe]
jwe
parents: 2861
diff changeset
3404 maybe_unput_comma (spc_gobbled);
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3405 }
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3406
2877
5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe]
jwe
parents: 2861
diff changeset
3407 current_input_column += yyleng;
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3408
9324
29563379fa9b don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents: 8974
diff changeset
3409 if (tok != "__end__")
29563379fa9b don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents: 8974
diff changeset
3410 lexer_flags.looking_for_object_index = true;
29563379fa9b don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents: 8974
diff changeset
3411
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3412 return NAME;
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3413 }
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3414
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3415 void
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3416 lexical_feedback::init (void)
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3417 {
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3418 // Not initially defining a matrix list.
3351
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
3419 bracketflag = 0;
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3420
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
3421 // Not initially defining a cell array list.
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
3422 braceflag = 0;
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
3423
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3424 // Not initially inside a loop or if statement.
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3425 looping = 0;
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3426
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3427 // Not initially defining a function.
11367
b2191ebea12f don't process input_event_hook when we are parsing a function
John W. Eaton <jwe@octave.org>
parents: 11217
diff changeset
3428 defining_func = 0;
11464
21b5284fa78d avoid error when parsing nested functions
John W. Eaton <jwe@octave.org>
parents: 11431
diff changeset
3429
21b5284fa78d avoid error when parsing nested functions
John W. Eaton <jwe@octave.org>
parents: 11431
diff changeset
3430 // Not parsing an object index.
21b5284fa78d avoid error when parsing nested functions
John W. Eaton <jwe@octave.org>
parents: 11431
diff changeset
3431 while (! parsed_function_name.empty ())
21b5284fa78d avoid error when parsing nested functions
John W. Eaton <jwe@octave.org>
parents: 11431
diff changeset
3432 parsed_function_name.pop ();
21b5284fa78d avoid error when parsing nested functions
John W. Eaton <jwe@octave.org>
parents: 11431
diff changeset
3433
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
3434 parsing_class_method = false;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3435
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3436 // Not initially defining a class with classdef.
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3437 maybe_classdef_get_set_method = false;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3438 parsing_classdef = false;
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3439 parsing_classdef_get_method = false;
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3440 parsing_classdef_set_method = false;
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3441
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3442 // Not initiallly looking at a function handle.
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3443 looking_at_function_handle = 0;
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3444
13237
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents: 12801
diff changeset
3445 // Not initiallly looking at an anonymous function argument list.
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents: 12801
diff changeset
3446 looking_at_anon_fcn_args = 0;
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents: 12801
diff changeset
3447
8701
1652e39b934e handle command names in declaration lists
John W. Eaton <jwe@octave.org>
parents: 8537
diff changeset
3448 // Not parsing a function return, parameter, or declaration list.
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3449 looking_at_return_list = false;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3450 looking_at_parameter_list = false;
8701
1652e39b934e handle command names in declaration lists
John W. Eaton <jwe@octave.org>
parents: 8537
diff changeset
3451 looking_at_decl_list = false;
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3452
7634
ae90e05ad299 fix parameter list initializer bug
John W. Eaton <jwe@octave.org>
parents: 7587
diff changeset
3453 // Not looking at an argument list initializer expression.
ae90e05ad299 fix parameter list initializer bug
John W. Eaton <jwe@octave.org>
parents: 7587
diff changeset
3454 looking_at_initializer_expression = false;
ae90e05ad299 fix parameter list initializer bug
John W. Eaton <jwe@octave.org>
parents: 7587
diff changeset
3455
3796
c34164f566f6 [project @ 2001-02-14 00:17:54 by jwe]
jwe
parents: 3779
diff changeset
3456 // Not parsing a matrix or the left hand side of multi-value
c34164f566f6 [project @ 2001-02-14 00:17:54 by jwe]
jwe
parents: 3779
diff changeset
3457 // assignment statement.
c34164f566f6 [project @ 2001-02-14 00:17:54 by jwe]
jwe
parents: 3779
diff changeset
3458 looking_at_matrix_or_assign_lhs = false;
c34164f566f6 [project @ 2001-02-14 00:17:54 by jwe]
jwe
parents: 3779
diff changeset
3459
4234
90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe]
jwe
parents: 4233
diff changeset
3460 // Not parsing an object index.
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
3461 while (! looking_at_object_index.empty ())
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
3462 looking_at_object_index.pop_front ();
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
3463
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
3464 looking_at_object_index.push_front (false);
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
3465
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
3466 // 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
3467 looking_for_object_index = false;
4234
90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe]
jwe
parents: 4233
diff changeset
3468
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3469 // Yes, we are at the beginning of a statement.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3470 at_beginning_of_statement = true;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3471
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3472 // No need to do comma insert or convert spaces to comma at
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3473 // beginning of input.
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3474 convert_spaces_to_comma = true;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3475 do_comma_insert = false;
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3476
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3477 // Not initially looking at indirect references.
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3478 looking_at_indirect_ref = false;
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3479
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3480 // Quote marks strings intially.
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
3481 quote_is_transpose = false;
8001
ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context
John W. Eaton <jwe@octave.org>
parents: 7898
diff changeset
3482
ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context
John W. Eaton <jwe@octave.org>
parents: 7898
diff changeset
3483 // Set of identifiers that might be local variable names is empty.
ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context
John W. Eaton <jwe@octave.org>
parents: 7898
diff changeset
3484 pending_local_variables.clear ();
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3485 }
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3486
4867
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3487 bool
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3488 is_keyword (const std::string& s)
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3489 {
14292
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3490 // Parsing function names like "set.property_name" inside
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3491 // classdef-style class definitions is simplified by handling the
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3492 // "set" and "get" portions of the names using the same mechanism as
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3493 // is used for keywords. However, they are not really keywords in
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3494 // the language, so omit them from the list of possible keywords.
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3495
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3496 return (octave_kw_hash::in_word_set (s.c_str (), s.length ()) != 0
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3497 && ! (s == "set" || s == "get"));
4867
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3498 }
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3499
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3500 DEFUN (iskeyword, args, ,
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3501 "-*- texinfo -*-\n\
11431
0d9640d755b1 Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents: 11367
diff changeset
3502 @deftypefn {Built-in Function} {} iskeyword ()\n\
0d9640d755b1 Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents: 11367
diff changeset
3503 @deftypefnx {Built-in Function} {} iskeyword (@var{name})\n\
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3504 Return true if @var{name} is an Octave keyword. If @var{name}\n\
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3505 is omitted, return a list of keywords.\n\
11431
0d9640d755b1 Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents: 11367
diff changeset
3506 @seealso{isvarname, exist}\n\
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3507 @end deftypefn")
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3508 {
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3509 octave_value retval;
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3510
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3511 int argc = args.length () + 1;
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3512
4867
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3513 string_vector argv = args.make_argv ("iskeyword");
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3514
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3515 if (error_state)
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3516 return retval;
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3517
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3518 if (argc == 1)
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3519 {
14292
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3520 // Neither set and get are keywords. See the note in the
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3521 // is_keyword function for additional details.
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3522
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3523 string_vector lst (TOTAL_KEYWORDS);
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3524
14292
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3525 int j = 0;
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3526
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3527 for (int i = 0; i < TOTAL_KEYWORDS; i++)
14292
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3528 {
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3529 std::string tmp = wordlist[i].name;
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3530
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3531 if (! (tmp == "set" || tmp == "get"))
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3532 lst[j++] = tmp;
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3533 }
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3534
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3535 lst.resize (j);
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3536
8504
0e0bd07e6ae2 omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents: 8447
diff changeset
3537 retval = Cell (lst.sort ());
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3538 }
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3539 else if (argc == 2)
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3540 {
4867
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3541 retval = is_keyword (argv[1]);
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3542 }
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3543 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5794
diff changeset
3544 print_usage ();
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3545
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3546 return retval;
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3547 }
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3548
12801
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3549 /*
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3550
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3551 %!assert (iskeyword ("for"))
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3552 %!assert (iskeyword ("fort"), false)
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3553 %!assert (iskeyword ("fft"), false)
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3554
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3555 */
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3556
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
3557 void
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3558 prep_lexer_for_script_file (void)
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
3559 {
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
3560 BEGIN (SCRIPT_FILE_BEGIN);
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
3561 }
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3562
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3563 void
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3564 prep_lexer_for_function_file (void)
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3565 {
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3566 BEGIN (FUNCTION_FILE_BEGIN);
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3567 }
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3568
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3569 void
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3570 prep_lexer_for_classdef_file (void)
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3571 {
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3572 BEGIN (CLASSDEF_FILE_BEGIN);
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3573 }
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3574
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
3575 static void
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
3576 maybe_warn_separator_insert (char sep)
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
3577 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
3578 std::string nm = curr_fcn_file_full_name;
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
3579
5794
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3580 if (nm.empty ())
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3581 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
3582 "potential auto-insertion of '%c' near line %d",
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3583 sep, input_line_number);
5794
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3584 else
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3585 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
3586 "potential auto-insertion of '%c' near line %d of file %s",
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3587 sep, input_line_number, nm.c_str ());
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
3588 }
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
3589
3400
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
3590 static void
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
3591 gripe_single_quote_string (void)
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
3592 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
3593 std::string nm = curr_fcn_file_full_name;
3400
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
3594
5794
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3595 if (nm.empty ())
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3596 warning_with_id ("Octave:single-quote-string",
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3597 "single quote delimited string near line %d",
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3598 input_line_number);
5794
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3599 else
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3600 warning_with_id ("Octave:single-quote-string",
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3601 "single quote delimited string near line %d of file %s",
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3602 input_line_number, nm.c_str ());
3400
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
3603 }
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
3604
4037
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3605 static void
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3606 gripe_matlab_incompatible (const std::string& msg)
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3607 {
8974
fde2a916b2ac include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
3608 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
3609
fde2a916b2ac include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
3610 if (nm.empty ())
fde2a916b2ac include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
3611 warning_with_id ("Octave:matlab-incompatible",
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3612 "potential Matlab compatibility problem: %s",
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3613 msg.c_str ());
8974
fde2a916b2ac include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
3614 else
fde2a916b2ac include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
3615 warning_with_id ("Octave:matlab-incompatible",
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3616 "potential Matlab compatibility problem: %s near line %d offile %s",
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3617 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
3618 }
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3619
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3620 static void
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3621 maybe_gripe_matlab_incompatible_comment (char c)
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3622 {
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3623 if (c == '#')
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3624 gripe_matlab_incompatible ("# used as comment character");
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3625 }
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3626
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3627 static void
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3628 gripe_matlab_incompatible_continuation (void)
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3629 {
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3630 gripe_matlab_incompatible ("\\ used as line continuation marker");
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3631 }
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3632
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3633 static void
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3634 gripe_matlab_incompatible_operator (const std::string& op)
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3635 {
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3636 std::string t = op;
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3637 int n = t.length ();
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3638 if (t[n-1] == '\n')
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3639 t.resize (n-1);
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3640 gripe_matlab_incompatible (t + " used as operator");
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3641 }
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3642
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3643 static void
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3644 display_token (int tok)
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3645 {
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3646 switch (tok)
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3647 {
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3648 case '=': std::cerr << "'='\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3649 case ':': std::cerr << "':'\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3650 case '-': std::cerr << "'-'\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3651 case '+': std::cerr << "'+'\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3652 case '*': std::cerr << "'*'\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3653 case '/': std::cerr << "'/'\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3654 case ADD_EQ: std::cerr << "ADD_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3655 case SUB_EQ: std::cerr << "SUB_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3656 case MUL_EQ: std::cerr << "MUL_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3657 case DIV_EQ: std::cerr << "DIV_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3658 case LEFTDIV_EQ: std::cerr << "LEFTDIV_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3659 case POW_EQ: std::cerr << "POW_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3660 case EMUL_EQ: std::cerr << "EMUL_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3661 case EDIV_EQ: std::cerr << "EDIV_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3662 case ELEFTDIV_EQ: std::cerr << "ELEFTDIV_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3663 case EPOW_EQ: std::cerr << "EPOW_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3664 case AND_EQ: std::cerr << "AND_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3665 case OR_EQ: std::cerr << "OR_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3666 case LSHIFT_EQ: std::cerr << "LSHIFT_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3667 case RSHIFT_EQ: std::cerr << "RSHIFT_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3668 case LSHIFT: std::cerr << "LSHIFT\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3669 case RSHIFT: std::cerr << "RSHIFT\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3670 case EXPR_AND_AND: std::cerr << "EXPR_AND_AND\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3671 case EXPR_OR_OR: std::cerr << "EXPR_OR_OR\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3672 case EXPR_AND: std::cerr << "EXPR_AND\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3673 case EXPR_OR: std::cerr << "EXPR_OR\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3674 case EXPR_NOT: std::cerr << "EXPR_NOT\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3675 case EXPR_LT: std::cerr << "EXPR_LT\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3676 case EXPR_LE: std::cerr << "EXPR_LE\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3677 case EXPR_EQ: std::cerr << "EXPR_EQ\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3678 case EXPR_NE: std::cerr << "EXPR_NE\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3679 case EXPR_GE: std::cerr << "EXPR_GE\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3680 case EXPR_GT: std::cerr << "EXPR_GT\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3681 case LEFTDIV: std::cerr << "LEFTDIV\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3682 case EMUL: std::cerr << "EMUL\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3683 case EDIV: std::cerr << "EDIV\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3684 case ELEFTDIV: std::cerr << "ELEFTDIV\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3685 case EPLUS: std::cerr << "EPLUS\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3686 case EMINUS: std::cerr << "EMINUS\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3687 case QUOTE: std::cerr << "QUOTE\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3688 case TRANSPOSE: std::cerr << "TRANSPOSE\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3689 case PLUS_PLUS: std::cerr << "PLUS_PLUS\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3690 case MINUS_MINUS: std::cerr << "MINUS_MINUS\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3691 case POW: std::cerr << "POW\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3692 case EPOW: std::cerr << "EPOW\n"; break;
11466
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3693
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3694 case NUM:
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3695 case IMAG_NUM:
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3696 std::cerr << (tok == NUM ? "NUM" : "IMAG_NUM")
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3697 << " [" << yylval.tok_val->number () << "]\n";
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3698 break;
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3699
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3700 case STRUCT_ELT:
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3701 std::cerr << "STRUCT_ELT [" << yylval.tok_val->text () << "]\n"; break;
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3702
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3703 case NAME:
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3704 {
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3705 symbol_table::symbol_record *sr = yylval.tok_val->sym_rec ();
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3706 std::cerr << "NAME";
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3707 if (sr)
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3708 std::cerr << " [" << sr->name () << "]";
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3709 std::cerr << "\n";
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3710 }
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3711 break;
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3712
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3713 case END: std::cerr << "END\n"; break;
11466
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3714
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3715 case DQ_STRING:
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3716 case SQ_STRING:
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3717 std::cerr << (tok == DQ_STRING ? "DQ_STRING" : "SQ_STRING")
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3718 << " [" << yylval.tok_val->text () << "]\n";
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3719 break;
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3720
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3721 case FOR: std::cerr << "FOR\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3722 case WHILE: std::cerr << "WHILE\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3723 case DO: std::cerr << "DO\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3724 case UNTIL: std::cerr << "UNTIL\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3725 case IF: std::cerr << "IF\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3726 case ELSEIF: std::cerr << "ELSEIF\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3727 case ELSE: std::cerr << "ELSE\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3728 case SWITCH: std::cerr << "SWITCH\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3729 case CASE: std::cerr << "CASE\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3730 case OTHERWISE: std::cerr << "OTHERWISE\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3731 case BREAK: std::cerr << "BREAK\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3732 case CONTINUE: std::cerr << "CONTINUE\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3733 case FUNC_RET: std::cerr << "FUNC_RET\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3734 case UNWIND: std::cerr << "UNWIND\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3735 case CLEANUP: std::cerr << "CLEANUP\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3736 case TRY: std::cerr << "TRY\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3737 case CATCH: std::cerr << "CATCH\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3738 case GLOBAL: std::cerr << "GLOBAL\n"; break;
14294
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
3739 case PERSISTENT: std::cerr << "PERSISTENT\n"; break;
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3740 case FCN_HANDLE: std::cerr << "FCN_HANDLE\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3741 case END_OF_INPUT: std::cerr << "END_OF_INPUT\n\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3742 case LEXICAL_ERROR: std::cerr << "LEXICAL_ERROR\n\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3743 case FCN: std::cerr << "FCN\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3744 case CLOSE_BRACE: std::cerr << "CLOSE_BRACE\n"; break;
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3745 case SCRIPT_FILE: std::cerr << "SCRIPT_FILE\n"; break;
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3746 case FUNCTION_FILE: std::cerr << "FUNCTION_FILE\n"; break;
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3747 case CLASSDEF_FILE: std::cerr << "CLASSDEF_FILE\n"; break;
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3748 case SUPERCLASSREF: std::cerr << "SUPERCLASSREF\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3749 case METAQUERY: std::cerr << "METAQUERY\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3750 case GET: std::cerr << "GET\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3751 case SET: std::cerr << "SET\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3752 case PROPERTIES: std::cerr << "PROPERTIES\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3753 case METHODS: std::cerr << "METHODS\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3754 case EVENTS: std::cerr << "EVENTS\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3755 case CLASSDEF: std::cerr << "CLASSDEF\n"; break;
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3756 case '\n': std::cerr << "\\n\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3757 case '\r': std::cerr << "\\r\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3758 case '\t': std::cerr << "TAB\n"; break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3759 default:
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3760 {
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3761 if (tok < 256)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3762 std::cerr << static_cast<char> (tok) << "\n";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3763 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3764 std::cerr << "UNKNOWN(" << tok << ")\n";
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3765 }
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3766 break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3767 }
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3768 }
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3769
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3770 static void
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3771 display_state (void)
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3772 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3773 std::cerr << "S: ";
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3774
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3775 switch (YY_START)
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3776 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3777 case INITIAL:
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3778 std::cerr << "INITIAL" << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3779 break;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3780
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3781 case COMMAND_START:
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3782 std::cerr << "COMMAND_START" << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3783 break;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3784
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3785 case MATRIX_START:
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3786 std::cerr << "MATRIX_START" << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3787 break;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3788
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3789 case SCRIPT_FILE_BEGIN:
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3790 std::cerr << "SCRIPT_FILE_BEGIN" << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3791 break;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3792
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3793 case FUNCTION_FILE_BEGIN:
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3794 std::cerr << "FUNCTION_FILE_BEGIN" << std::endl;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3795 break;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3796
15037
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3797 case CLASSDEF_FILE_BEGIN:
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3798 std::cerr << "CLASSDEF_FILE_BEGIN" << std::endl;
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3799 break;
56b8eb7c9c04 improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents: 14647
diff changeset
3800
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3801 default:
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3802 std::cerr << "UNKNOWN START STATE!" << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3803 break;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3804 }
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3805 }
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3806
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3807 static void
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3808 lexer_debug (const char *pattern, const char *text)
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3809 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3810 std::cerr << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3811
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3812 display_state ();
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3813
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3814 std::cerr << "P: " << pattern << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3815 std::cerr << "T: " << text << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3816 }
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3817
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3818 DEFUN (__display_tokens__, args, nargout,
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3819 "-*- texinfo -*-\n\
8812
7d48766c21a5 use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents: 8767
diff changeset
3820 @deftypefn {Built-in Function} {} __display_tokens__ ()\n\
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3821 Query or set the internal variable that determines whether Octave's\n\
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3822 lexer displays tokens as they are read.\n\
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3823 @end deftypefn")
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3824 {
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3825 return SET_INTERNAL_VARIABLE (display_tokens);
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3826 }
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3827
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3828 DEFUN (__token_count__, , ,
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3829 "-*- texinfo -*-\n\
8812
7d48766c21a5 use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents: 8767
diff changeset
3830 @deftypefn {Built-in Function} {} __token_count__ ()\n\
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3831 Number of language tokens processed since Octave startup.\n\
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3832 @end deftypefn")
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3833 {
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3834 return octave_value (Vtoken_count);
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3835 }
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3836
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3837 DEFUN (__lexer_debug_flag__, args, nargout,
8812
7d48766c21a5 use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents: 8767
diff changeset
3838 "-*- texinfo -*-\n\
7d48766c21a5 use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents: 8767
diff changeset
3839 @deftypefn {Built-in Function} {@var{old_val} =} __lexer_debug_flag__ (@var{new_val}))\n\
7d48766c21a5 use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents: 8767
diff changeset
3840 Undocumented internal function.\n\
7d48766c21a5 use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents: 8767
diff changeset
3841 @end deftypefn")
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3842 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3843 octave_value retval;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3844
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3845 retval = set_internal_variable (lexer_debug_flag, args, nargout,
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3846 "__lexer_debug_flag__");
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3847
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3848 return retval;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3849 }