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annotate libinterp/parse-tree/lex.ll @ 16111:3ec4f6488569

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move token stack to lexical_feedback class * lex.h, lex.ll (token_stack): Move global variable to lexical_feedback class. Change all uses. * lex.ll (lexical_feedback::~lexical_feedback): Move definition here from lex.h. Clean up token_stack.
author John W. Eaton <jwe@octave.org>
date Tue, 26 Feb 2013 01:34:11 -0500
parents 7302f8a4df83
children 7c5e5e97a3bc
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
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38 %{
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39
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40 #include <cctype>
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41 #include <cstring>
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42
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43 #include <iostream>
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44 #include <set>
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45 #include <sstream>
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46 #include <string>
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47 #include <stack>
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48
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49 #include <sys/types.h>
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50 #include <unistd.h>
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51
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52 #include "cmd-edit.h"
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53 #include "quit.h"
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54 #include "lo-mappers.h"
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55
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56 // These would be alphabetical, but y.tab.h must be included before
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57 // oct-gperf.h and y.tab.h must be included after token.h and the tree
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58 // class declarations. We can't include y.tab.h in oct-gperf.h
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59 // because it may not be protected to allow it to be included multiple
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60 // times.
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61
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62 #include "Cell.h"
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63 #include "comment-list.h"
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64 #include "defun.h"
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65 #include "error.h"
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66 #include "gripes.h"
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67 #include "input.h"
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68 #include "lex.h"
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69 #include "ov.h"
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70 #include "parse.h"
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71 #include "parse-private.h"
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72 #include "pt-all.h"
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73 #include "symtab.h"
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74 #include "token.h"
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75 #include "toplev.h"
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76 #include "utils.h"
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77 #include "variables.h"
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78 #include <oct-parse.h>
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79 #include <oct-gperf.h>
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81 #if defined (GNULIB_NAMESPACE)
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82 // Calls to the following functions appear in the generated output from
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83 // flex without the namespace tag. Redefine them so we will use them
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84 // via the gnulib namespace.
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85 #define fprintf GNULIB_NAMESPACE::fprintf
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86 #define fwrite GNULIB_NAMESPACE::fwrite
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87 #define isatty GNULIB_NAMESPACE::isatty
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88 #define malloc GNULIB_NAMESPACE::malloc
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89 #define realloc GNULIB_NAMESPACE::realloc
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90 #endif
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91
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92 #if ! (defined (FLEX_SCANNER) \
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93 && defined (YY_FLEX_MAJOR_VERSION) && YY_FLEX_MAJOR_VERSION >= 2 \
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94 && defined (YY_FLEX_MINOR_VERSION) && YY_FLEX_MINOR_VERSION >= 5)
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95 #error lex.l requires flex version 2.5.4 or later
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96 #endif
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97
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98 #define yylval octave_lval
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99
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100 // Arrange to get input via readline.
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101
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102 #ifdef YY_INPUT
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103 #undef YY_INPUT
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104 #endif
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105 #define YY_INPUT(buf, result, max_size) \
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106 result = octave_read (buf, max_size)
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107
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108 // Try to avoid crashing out completely on fatal scanner errors.
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109 // The call to yy_fatal_error should never happen, but it avoids a
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110 // 'static function defined but not used' warning from gcc.
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111
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112 #ifdef YY_FATAL_ERROR
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113 #undef YY_FATAL_ERROR
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114 #endif
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115 #define YY_FATAL_ERROR(msg) \
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116 do \
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117 { \
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118 error (msg); \
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119 OCTAVE_QUIT; \
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120 yy_fatal_error (msg); \
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121 } \
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122 while (0)
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123
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124 #define DISPLAY_TOK_AND_RETURN(tok) \
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125 do \
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126 { \
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127 int tok_val = tok; \
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128 if (Vdisplay_tokens) \
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129 display_token (tok_val); \
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130 if (lexer_debug_flag) \
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131 { \
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132 std::cerr << "R: "; \
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133 display_token (tok_val); \
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134 std::cerr << std::endl; \
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135 } \
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136 return tok_val; \
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137 } \
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138 while (0)
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139
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140 #define COUNT_TOK_AND_RETURN(tok) \
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141 do \
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142 { \
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143 Vtoken_count++; \
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144 DISPLAY_TOK_AND_RETURN (tok); \
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145 } \
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146 while (0)
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147
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148 #define TOK_RETURN(tok) \
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149 do \
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150 { \
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151 curr_lexer->current_input_column += yyleng; \
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152 curr_lexer->quote_is_transpose = false; \
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153 curr_lexer->convert_spaces_to_comma = true; \
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154 COUNT_TOK_AND_RETURN (tok); \
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155 } \
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156 while (0)
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157
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158 #define TOK_PUSH_AND_RETURN(name, tok) \
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159 do \
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160 { \
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161 yylval.tok_val = new token (name, curr_lexer->input_line_number, \
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162 curr_lexer->current_input_column); \
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163 curr_lexer->token_stack.push (yylval.tok_val); \
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164 TOK_RETURN (tok); \
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165 } \
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166 while (0)
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167
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168 #define BIN_OP_RETURN_INTERNAL(tok, convert, bos, qit) \
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169 do \
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170 { \
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171 yylval.tok_val = new token (curr_lexer->input_line_number, \
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172 curr_lexer->current_input_column); \
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173 curr_lexer->token_stack.push (yylval.tok_val); \
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174 curr_lexer->current_input_column += yyleng; \
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175 curr_lexer->quote_is_transpose = qit; \
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176 curr_lexer->convert_spaces_to_comma = convert; \
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177 curr_lexer->looking_for_object_index = false; \
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178 curr_lexer->at_beginning_of_statement = bos; \
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179 COUNT_TOK_AND_RETURN (tok); \
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180 } \
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181 while (0)
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182
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183 #define XBIN_OP_RETURN_INTERNAL(tok, convert, bos, qit) \
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184 do \
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185 { \
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186 gripe_matlab_incompatible_operator (yytext); \
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187 BIN_OP_RETURN_INTERNAL (tok, convert, bos, qit); \
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188 } \
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189 while (0)
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190
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191 #define BIN_OP_RETURN(tok, convert, bos) \
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192 do \
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193 { \
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194 BIN_OP_RETURN_INTERNAL (tok, convert, bos, false); \
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195 } \
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196 while (0)
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197
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198 #define XBIN_OP_RETURN(tok, convert, bos) \
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199 do \
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200 { \
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201 gripe_matlab_incompatible_operator (yytext); \
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202 BIN_OP_RETURN (tok, convert, bos); \
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203 } \
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204 while (0)
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205
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206 #define LEXER_DEBUG(pattern) \
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207 do \
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208 { \
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209 if (lexer_debug_flag) \
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210 lexer_debug (pattern, yytext); \
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211 } \
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212 while (0)
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213
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214 // The state of the lexer.
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215 lexical_feedback *curr_lexer = 0;
1826
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216
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217 static bool Vdisplay_tokens = false;
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218
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219 static unsigned int Vtoken_count = 0;
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220
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221 // Internal variable for lexer debugging state.
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222 static bool lexer_debug_flag = false;
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223
146
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224 // Forward declarations for functions defined at the bottom of this
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225 // file.
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226
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227 static int text_yyinput (void);
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228 static void xunput (char c, char *buf);
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229 static void fixup_column_count (char *s);
146
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diff changeset
230 static void do_comma_insert_check (void);
4867
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231 static int is_keyword_token (const std::string& s);
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74f5e0c7de9e first pass at handling block comments
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232 static int process_comment (bool start_in_block, bool& eof);
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233 static bool match_any (char c, const char *s);
3263
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234 static bool next_token_is_sep_op (void);
3246
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diff changeset
235 static bool next_token_is_bin_op (bool spc_prev);
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236 static bool next_token_is_postfix_unary_op (bool spc_prev);
3523
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237 static std::string strip_trailing_whitespace (char *s);
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diff changeset
238 static void handle_number (void);
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239 static int handle_string (char delim);
4612
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diff changeset
240 static int handle_close_bracket (bool spc_gobbled, int bracket_type);
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d9b25c5b8ee5 handle classdef syntax in lexer and parser
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241 static int handle_superclass_identifier (void);
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diff changeset
242 static int handle_meta_identifier (void);
3974
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243 static int handle_identifier (void);
3096
ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe]
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diff changeset
244 static bool have_continuation (bool trailing_comments_ok = true);
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diff changeset
245 static bool have_ellipsis_continuation (bool trailing_comments_ok = true);
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
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diff changeset
246 static void scan_for_comments (const char *);
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031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
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diff changeset
247 static int eat_whitespace (void);
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diff changeset
248 static int eat_continuation (void);
16098
24b3800d30e7 move octave_read to lex.ll
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parents: 15468
diff changeset
249 static int octave_read (char *buf, unsigned int max_size);
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
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parents: 3351
diff changeset
250 static void maybe_warn_separator_insert (char sep);
3400
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
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parents: 3388
diff changeset
251 static void gripe_single_quote_string (void);
4037
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diff changeset
252 static void gripe_matlab_incompatible (const std::string& msg);
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diff changeset
253 static void maybe_gripe_matlab_incompatible_comment (char c);
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diff changeset
254 static void gripe_matlab_incompatible_continuation (void);
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diff changeset
255 static void gripe_matlab_incompatible_operator (const std::string& op);
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diff changeset
256 static void display_token (int tok);
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diff changeset
257 static void lexer_debug (const char *pattern, const char *text);
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258
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259 %}
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260
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57a59eae83cc untabify src C++ source files
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diff changeset
261 D [0-9]
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diff changeset
262 S [ \t]
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diff changeset
263 NL ((\n)|(\r)|(\r\n))
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diff changeset
264 SNL ({S}|{NL})
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diff changeset
265 EL (\.\.\.)
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diff changeset
266 BS (\\)
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parents: 10182
diff changeset
267 CONT ({EL}|{BS})
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diff changeset
268 Im [iIjJ]
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diff changeset
269 CCHAR [#%]
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diff changeset
270 COMMENT ({CCHAR}.*{NL})
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271 SNLCMT ({SNL}|{COMMENT})
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272 NOT ((\~)|(\!))
4037
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diff changeset
273 POW ((\*\*)|(\^))
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diff changeset
274 EPOW (\.{POW})
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diff changeset
275 IDENT ([_$a-zA-Z][_$a-zA-Z0-9]*)
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276 EXPON ([DdEe][+-]?{D}+)
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diff changeset
277 NUMBER (({D}+\.?{D}*{EXPON}?)|(\.{D}+{EXPON}?)|(0[xX][0-9a-fA-F]+))
1
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278 %%
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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279
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diff changeset
280 %{
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281 // Make script and function files start with a bogus token. This makes
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diff changeset
282 // the parser go down a special path.
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283 %}
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284
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diff changeset
285 <SCRIPT_FILE_BEGIN>. {
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diff changeset
286 LEXER_DEBUG ("<SCRIPT_FILE_BEGIN>.");
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287
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parents: 7634
diff changeset
288 BEGIN (INITIAL);
8447
adab48231a03 make input_line_number work again
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parents: 8312
diff changeset
289 xunput (yytext[0], yytext);
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
290 COUNT_TOK_AND_RETURN (SCRIPT_FILE);
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
291 }
5b4d278ec828 parse scripts completely before executing
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parents: 7634
diff changeset
292
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
293 <FUNCTION_FILE_BEGIN>. {
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
294 LEXER_DEBUG ("<FUNCTION_FILE_BEGIN>.");
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
295
4323
0990c9b77109 [project @ 2003-02-14 07:36:26 by jwe]
jwe
parents: 4318
diff changeset
296 BEGIN (INITIAL);
8447
adab48231a03 make input_line_number work again
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parents: 8312
diff changeset
297 xunput (yytext[0], yytext);
9474
25ed2d6aacf6 Parse nested functions more accurately.
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parents: 9324
diff changeset
298 COUNT_TOK_AND_RETURN (FUNCTION_FILE);
4238
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
299 }
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
300
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
301 %{
8746
5dd06f19e9be handle commands in the lexer
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parents: 8745
diff changeset
302 // Help and other command-style functions.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
303 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
304
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
305 <COMMAND_START>{NL} {
8535
75e6ab186761 lexer debugging functions
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parents: 8504
diff changeset
306 LEXER_DEBUG ("<COMMAND_START>{NL}");
75e6ab186761 lexer debugging functions
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parents: 8504
diff changeset
307
4323
0990c9b77109 [project @ 2003-02-14 07:36:26 by jwe]
jwe
parents: 4318
diff changeset
308 BEGIN (INITIAL);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
309 curr_lexer->input_line_number++;
7302f8a4df83 use pointer for global lexical_feedback structure
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parents: 16106
diff changeset
310 curr_lexer->current_input_column = 1;
7302f8a4df83 use pointer for global lexical_feedback structure
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parents: 16106
diff changeset
311
7302f8a4df83 use pointer for global lexical_feedback structure
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parents: 16106
diff changeset
312 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
313 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
314 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure
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parents: 16106
diff changeset
315 curr_lexer->at_beginning_of_statement = true;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
316
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
317 COUNT_TOK_AND_RETURN ('\n');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
318 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
319
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
320 <COMMAND_START>[\;\,] {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
321 LEXER_DEBUG ("<COMMAND_START>[\\;\\,]");
75e6ab186761 lexer debugging functions
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parents: 8504
diff changeset
322
16110
7302f8a4df83 use pointer for global lexical_feedback structure
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parents: 16106
diff changeset
323 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure
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parents: 16106
diff changeset
324 curr_lexer->at_beginning_of_statement = true;
5102
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
325
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
326 BEGIN (INITIAL);
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
327
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
328 if (strcmp (yytext, ",") == 0)
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
329 TOK_RETURN (',');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
330 else
5102
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
331 TOK_RETURN (';');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
332 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
333
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
334 <COMMAND_START>[\"\'] {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
335 LEXER_DEBUG ("<COMMAND_START>[\\\"\\']");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
336
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
337 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
338
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
339 curr_lexer->current_input_column++;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
340 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
341
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
342 COUNT_TOK_AND_RETURN (tok);
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
343 }
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
344
4923
b11223097ad4 [project @ 2004-08-02 16:33:11 by jwe]
jwe
parents: 4910
diff changeset
345 <COMMAND_START>[^#% \t\r\n\;\,\"\'][^ \t\r\n\;\,]*{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
346 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
347
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
348 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
349
16110
7302f8a4df83 use pointer for global lexical_feedback structure
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parents: 16106
diff changeset
350 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure
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parents: 16106
diff changeset
351 curr_lexer->at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
352
5279
bd32f770c09a [project @ 2005-04-12 21:55:31 by jwe]
jwe
parents: 5225
diff changeset
353 TOK_PUSH_AND_RETURN (tok, SQ_STRING);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
354 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
355
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
356 %{
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
357 // 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
358 // need to know if the next token is '=' or '=='.
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
359 //
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
360 // 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
361 // 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
362 // operator.
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
363 //
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
364 // 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
365 // after seeing a ']' character...
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
366
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
367 // FIXME -- we need to handle block comments here.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
368 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
369
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
370 <MATRIX_START>{SNLCMT}*\]{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
371 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*\\]{S}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
372
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
373 scan_for_comments (yytext);
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
374 fixup_column_count (yytext);
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
375
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
376 curr_lexer->looking_at_object_index.pop_front ();
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
377
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
378 curr_lexer->looking_for_object_index = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
379 curr_lexer->at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
380
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
381 int c = yytext[yyleng-1];
16106
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
382 bool cont_is_spc = (eat_continuation () != lexical_feedback::NO_WHITESPACE);
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
383 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
384 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
385
5345
2781568bf951 [project @ 2005-05-10 05:31:12 by jwe]
jwe
parents: 5307
diff changeset
386 if (spc_gobbled)
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
387 xunput (' ', yytext);
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
388
5345
2781568bf951 [project @ 2005-05-10 05:31:12 by jwe]
jwe
parents: 5307
diff changeset
389 COUNT_TOK_AND_RETURN (tok_to_return);
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
390 }
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
391
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
392 %{
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
393 // 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
394 %}
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
395
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
396 <MATRIX_START>{SNLCMT}*\}{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
397 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*\\}{S}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
398
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
399 scan_for_comments (yytext);
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
400 fixup_column_count (yytext);
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
401
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
402 curr_lexer->looking_at_object_index.pop_front ();
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
403
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
404 curr_lexer->looking_for_object_index = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
405 curr_lexer->at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
406
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
407 int c = yytext[yyleng-1];
16106
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
408 bool cont_is_spc = (eat_continuation () != lexical_feedback::NO_WHITESPACE);
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
409 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
410 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
411
5345
2781568bf951 [project @ 2005-05-10 05:31:12 by jwe]
jwe
parents: 5307
diff changeset
412 if (spc_gobbled)
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
413 xunput (' ', yytext);
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
414
5345
2781568bf951 [project @ 2005-05-10 05:31:12 by jwe]
jwe
parents: 5307
diff changeset
415 COUNT_TOK_AND_RETURN (tok_to_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
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
418 %{
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
419 // 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
420 // 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
421 // commas.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
422 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
423
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
424 <MATRIX_START>{S}*\,{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
425 LEXER_DEBUG ("<MATRIX_START>{S}*\\,{S}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
426
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
427 curr_lexer->current_input_column += yyleng;
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
428
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
429 int tmp = eat_continuation ();
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
430
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
431 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
432 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
433 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
434 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
435
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
436 if (! curr_lexer->looking_at_object_index.front ())
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
437 {
16106
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
438 if ((tmp & lexical_feedback::NEWLINE) == lexical_feedback::NEWLINE)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
439 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
440 maybe_warn_separator_insert (';');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
441
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
442 xunput (';', yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
443 }
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
444 }
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
445
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
446 COUNT_TOK_AND_RETURN (',');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
447 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
448
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
449 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
450 // 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
451 // 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
452 // 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
453 // 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
454 %}
430
8464d5778a09 [project @ 1994-05-25 08:33:54 by jwe]
jwe
parents: 428
diff changeset
455
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
456 <MATRIX_START>{S}+ {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
457 LEXER_DEBUG ("<MATRIX_START>{S}+");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
458
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
459 curr_lexer->current_input_column += yyleng;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
460
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
461 curr_lexer->at_beginning_of_statement = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
462
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
463 int tmp = eat_continuation ();
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
464
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
465 if (! curr_lexer->looking_at_object_index.front ())
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
466 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
467 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
468 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
469 bool sep_op = next_token_is_sep_op ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
470
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
471 if (! (postfix_un_op || bin_op || sep_op)
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
472 && curr_lexer->nesting_level.is_bracket_or_brace ()
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
473 && curr_lexer->convert_spaces_to_comma)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
474 {
16106
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
475 if ((tmp & lexical_feedback::NEWLINE) == lexical_feedback::NEWLINE)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
476 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
477 maybe_warn_separator_insert (';');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
478
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
479 xunput (';', yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
480 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
481
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
482 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
483 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
484 curr_lexer->looking_for_object_index = false;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
485
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
486 maybe_warn_separator_insert (',');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
487
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
488 COUNT_TOK_AND_RETURN (',');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
489 }
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
490 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
491 }
430
8464d5778a09 [project @ 1994-05-25 08:33:54 by jwe]
jwe
parents: 428
diff changeset
492
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
493 %{
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
494 // 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
495 // 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
496 // semicolons.
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
497
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
498 // FIXME -- we need to handle block comments here.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
499 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
500
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
501 <MATRIX_START>{SNLCMT}*;{SNLCMT}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
502 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*;{SNLCMT}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
503
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
504 scan_for_comments (yytext);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
505 fixup_column_count (yytext);
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
506 eat_whitespace ();
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
507
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
508 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
509 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
510 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
511 curr_lexer->at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
512
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
513 COUNT_TOK_AND_RETURN (';');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
514 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
515
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
516 %{
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
517 // 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
518 // 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
519 // semicolons.
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
520
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
521 // FIXME -- we need to handle block comments here.
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
522 %}
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
523
4208
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
524 <MATRIX_START>{S}*{COMMENT}{SNLCMT}* |
e96f52432059 [project @ 2002-12-03 19:48:57 by jwe]
jwe
parents: 4198
diff changeset
525 <MATRIX_START>{S}*{NL}{SNLCMT}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
526 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
527
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
528 scan_for_comments (yytext);
1082
d1a1608f1028 [project @ 1995-01-27 22:26:33 by jwe]
jwe
parents: 1072
diff changeset
529 fixup_column_count (yytext);
1088
0491f3433f66 [project @ 1995-02-01 21:43:25 by jwe]
jwe
parents: 1082
diff changeset
530 eat_whitespace ();
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
531
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
532 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
533 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
534 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
535
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
536 if (curr_lexer->nesting_level.none ())
4476
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
537 return LEXICAL_ERROR;
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
538
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
539 if (! curr_lexer->looking_at_object_index.front ()
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
540 && curr_lexer->nesting_level.is_bracket_or_brace ())
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
541 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
542 maybe_warn_separator_insert (';');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
543
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
544 COUNT_TOK_AND_RETURN (';');
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
545 }
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
546 }
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
547
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
548 \[{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
549 LEXER_DEBUG ("\\[{S}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
550
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
551 curr_lexer->nesting_level.bracket ();
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
552
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
553 curr_lexer->looking_at_object_index.push_front (false);
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
554
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
555 curr_lexer->current_input_column += yyleng;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
556 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
557 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
558 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
559 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
560
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
561 if (curr_lexer->defining_func
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
562 && ! curr_lexer->parsed_function_name.top ())
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
563 curr_lexer->looking_at_return_list = true;
5615
d01f07aeaec5 [project @ 2006-02-10 21:30:41 by jwe]
jwe
parents: 5570
diff changeset
564 else
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
565 curr_lexer->looking_at_matrix_or_assign_lhs = true;
5615
d01f07aeaec5 [project @ 2006-02-10 21:30:41 by jwe]
jwe
parents: 5570
diff changeset
566
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
567 promptflag--;
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
568 eat_whitespace ();
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
569
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
570 curr_lexer->bracketflag++;
5102
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
571 BEGIN (MATRIX_START);
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
572 COUNT_TOK_AND_RETURN ('[');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
573 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
574
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
575 \] {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
576 LEXER_DEBUG ("\\]");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
577
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
578 curr_lexer->nesting_level.remove ();
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
579
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
580 curr_lexer->looking_at_object_index.pop_front ();
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
581
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
582 curr_lexer->looking_for_object_index = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
583 curr_lexer->at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
584
5102
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
585 TOK_RETURN (']');
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
586 }
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
587
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
588 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
589 // Imaginary numbers.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
590 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
591
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
592 {NUMBER}{Im} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
593 LEXER_DEBUG ("{NUMBER}{Im}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
594
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
595 handle_number ();
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
596 COUNT_TOK_AND_RETURN (IMAG_NUM);
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
597 }
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
598
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
599 %{
15466
d174210ce1ec use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
600 // 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
601 // the constant.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
602 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
603
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
604 {D}+/\.[\*/\\^\'] |
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
605 {NUMBER} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
606 LEXER_DEBUG ("{D}+/\\.[\\*/\\^\\']|{NUMBER}");
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
607 handle_number ();
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
608 COUNT_TOK_AND_RETURN (NUM);
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
609 }
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
610
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
611 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
612 // 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
613 // the <MATRIX_START> start state code above.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
614 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
615
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
616 {S}* {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
617 curr_lexer->current_input_column += yyleng;
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
618 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
619
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
620 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
621 // Continuation lines. Allow comments after continuations.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
622 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
623
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
624 {CONT}{S}*{NL} |
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
625 {CONT}{S}*{COMMENT} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
626 LEXER_DEBUG ("{CONT}{S}*{NL}|{CONT}{S}*{COMMENT}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
627
4037
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
628 if (yytext[0] == '\\')
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
629 gripe_matlab_incompatible_continuation ();
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
630 scan_for_comments (yytext);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
631 promptflag--;
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
632 curr_lexer->input_line_number++;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
633 curr_lexer->current_input_column = 1;
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
634 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
635
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
636 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
637 // End of file.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
638 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
639
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
640 <<EOF>> {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
641 LEXER_DEBUG ("<<EOF>>");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
642
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
643 if (curr_lexer->block_comment_nesting_level != 0)
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
644 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
645 warning ("block comment open at end of input");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
646
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
647 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
648 && ! 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
649 warning ("near line %d of file '%s.m'",
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
650 curr_lexer->input_line_number, curr_fcn_file_name.c_str ());
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
651 }
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
652
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
653 TOK_RETURN (END_OF_INPUT);
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
654 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
655
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
656 %{
970
9382316a8a01 [project @ 1994-12-12 06:03:34 by jwe]
jwe
parents: 969
diff changeset
657 // 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
658 // don't write directly on yytext.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
659 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
660
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
661 {IDENT}{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
662 LEXER_DEBUG ("{IDENT}{S}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
663
4238
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
664 int id_tok = handle_identifier ();
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
665
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
666 if (id_tok >= 0)
9324
29563379fa9b don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents: 8974
diff changeset
667 COUNT_TOK_AND_RETURN (id_tok);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
668 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
669
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
670 %{
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
671 // Superclass method identifiers.
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
672 %}
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
673
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
674 {IDENT}@{IDENT}{S}* |
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
675 {IDENT}@{IDENT}.{IDENT}{S}* {
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
676 LEXER_DEBUG ("{IDENT}@{IDENT}{S}*|{IDENT}@{IDENT}.{IDENT}{S}*");
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
677
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
678 int id_tok = handle_superclass_identifier ();
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
679
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
680 if (id_tok >= 0)
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
681 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
682 curr_lexer->looking_for_object_index = true;
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
683
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
684 COUNT_TOK_AND_RETURN (SUPERCLASSREF);
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
685 }
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
686 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
687
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
688 %{
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
689 // Metaclass query
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
690 %}
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
691
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
692 \?{IDENT}{S}* |
14638
5b0872b5b234 fix missing backslash quoting in lexer rules
John W. Eaton <jwe@octave.org>
parents: 14510
diff changeset
693 \?{IDENT}\.{IDENT}{S}* {
5b0872b5b234 fix missing backslash quoting in lexer rules
John W. Eaton <jwe@octave.org>
parents: 14510
diff changeset
694 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
695
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
696 int id_tok = handle_meta_identifier ();
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
697
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
698 if (id_tok >= 0)
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
699 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
700 curr_lexer->looking_for_object_index = true;
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
701
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
702 COUNT_TOK_AND_RETURN (METAQUERY);
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
703 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
704 }
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
705
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
706 %{
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
707 // Function handles and superclass references
4342
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe]
jwe
parents: 4323
diff changeset
708 %}
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe]
jwe
parents: 4323
diff changeset
709
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
710 "@" {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
711 LEXER_DEBUG ("@");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
712
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
713 curr_lexer->current_input_column++;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
714
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
715 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
716 curr_lexer->convert_spaces_to_comma = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
717 curr_lexer->looking_at_function_handle++;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
718 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
719 curr_lexer->at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
720
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
721 COUNT_TOK_AND_RETURN ('@');
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
722
4342
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe]
jwe
parents: 4323
diff changeset
723 }
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe]
jwe
parents: 4323
diff changeset
724
813effe14ee1 [project @ 2003-02-20 08:35:55 by jwe]
jwe
parents: 4323
diff changeset
725 %{
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
726 // 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
727 // 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
728 // 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
729 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
730
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
731 {NL} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
732 LEXER_DEBUG ("{NL}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
733
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
734 curr_lexer->input_line_number++;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
735 curr_lexer->current_input_column = 1;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
736
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
737 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
738 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
739
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
740 if (curr_lexer->nesting_level.none ())
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
741 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
742 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
743 COUNT_TOK_AND_RETURN ('\n');
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
744 }
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
745 else if (curr_lexer->nesting_level.is_paren ())
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
746 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
747 curr_lexer->at_beginning_of_statement = false;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
748 gripe_matlab_incompatible ("bare newline inside parentheses");
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
749 }
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
750 else if (curr_lexer->nesting_level.is_bracket_or_brace ())
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
751 return LEXICAL_ERROR;
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 %{
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
755 // 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
756 // operator.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
757 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
758
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
759 "'" {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
760 LEXER_DEBUG ("'");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
761
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
762 curr_lexer->current_input_column++;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
763 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
764
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
765 if (curr_lexer->quote_is_transpose)
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
766 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
767 do_comma_insert_check ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
768 COUNT_TOK_AND_RETURN (QUOTE);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
769 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
770 else
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
771 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
772 int tok = handle_string ('\'');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
773 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
774 }
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
775 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
776
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
777 %{
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
778 // Double quotes always begin strings.
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
779 %}
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
780
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
781 \" {
14642
6edd02858516 lex.ll: fix think-o in previous change
John W. Eaton <jwe@octave.org>
parents: 14638
diff changeset
782 LEXER_DEBUG ("\"");
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
783
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
784 curr_lexer->current_input_column++;
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
785 int tok = handle_string ('"');
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
786
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
787 COUNT_TOK_AND_RETURN (tok);
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
788 }
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
789
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
790 %{
8536
de1b944d5306 lex.l: finish previous change
John W. Eaton <jwe@octave.org>
parents: 8535
diff changeset
791 // Gobble comments.
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
792 %}
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
793
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
794 {CCHAR} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
795 LEXER_DEBUG ("{CCHAR}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
796
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
797 curr_lexer->looking_for_object_index = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
798
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
799 xunput (yytext[0], yytext);
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
800
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
801 bool eof = false;
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
802 int tok = process_comment (false, eof);
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
803
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
804 if (eof)
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
805 TOK_RETURN (END_OF_INPUT);
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
806 else if (tok > 0)
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
807 COUNT_TOK_AND_RETURN (tok);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
808 }
440
e27d10f2e573 [project @ 1994-05-30 03:33:37 by jwe]
jwe
parents: 430
diff changeset
809
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
810 %{
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
811 // Block comments.
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
812 %}
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
813
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
814 ^{S}*{CCHAR}\{{S}*{NL} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
815 LEXER_DEBUG ("^{S}*{CCHAR}\\{{S}*{NL}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
816
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
817 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
818
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
819 curr_lexer->input_line_number++;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
820 curr_lexer->current_input_column = 1;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
821 curr_lexer->block_comment_nesting_level++;
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
822 promptflag--;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
823
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
824 bool eof = false;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
825 process_comment (true, eof);
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
826 }
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
827
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
828 %{
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
829 // Other operators.
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
830 %}
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
831
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
832 ":" { LEXER_DEBUG (":"); BIN_OP_RETURN (':', false, false); }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
833
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
834 ".+" { LEXER_DEBUG (".+"); XBIN_OP_RETURN (EPLUS, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
835 ".-" { LEXER_DEBUG (".-"); XBIN_OP_RETURN (EMINUS, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
836 ".*" { LEXER_DEBUG (".*"); BIN_OP_RETURN (EMUL, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
837 "./" { LEXER_DEBUG ("./"); BIN_OP_RETURN (EDIV, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
838 ".\\" { LEXER_DEBUG (".\\"); BIN_OP_RETURN (ELEFTDIV, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
839 ".^" { LEXER_DEBUG (".^"); BIN_OP_RETURN (EPOW, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
840 ".**" { LEXER_DEBUG (".**"); XBIN_OP_RETURN (EPOW, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
841 ".'" { 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
842 "++" { 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
843 "--" { 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
844 "<=" { 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
845 "==" { 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
846 "~=" { 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
847 "!=" { 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
848 ">=" { 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
849 "&" { 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
850 "|" { 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
851 "<" { 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
852 ">" { 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
853 "+" { LEXER_DEBUG ("+"); BIN_OP_RETURN ('+', false, false); }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
854 "-" { LEXER_DEBUG ("-"); BIN_OP_RETURN ('-', false, false); }
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
855 "*" { LEXER_DEBUG ("*"); BIN_OP_RETURN ('*', false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
856 "/" { LEXER_DEBUG ("/"); BIN_OP_RETURN ('/', false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
857 "\\" { 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
858 ";" { LEXER_DEBUG (";"); BIN_OP_RETURN (';', true, true); }
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
859 "," { LEXER_DEBUG (","); BIN_OP_RETURN (',', true, ! curr_lexer->looking_at_object_index.front ()); }
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
860 "^" { LEXER_DEBUG ("^"); BIN_OP_RETURN (POW, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
861 "**" { LEXER_DEBUG ("**"); XBIN_OP_RETURN (POW, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
862 "=" { LEXER_DEBUG ("="); BIN_OP_RETURN ('=', true, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
863 "&&" { 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
864 "||" { 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
865 "<<" { LEXER_DEBUG ("<<"); XBIN_OP_RETURN (LSHIFT, false, false); }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
866 ">>" { 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
867
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
868 {NOT} {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
869 LEXER_DEBUG ("{NOT}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
870
4037
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
871 if (yytext[0] == '~')
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
872 BIN_OP_RETURN (EXPR_NOT, false, false);
4037
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
873 else
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
874 XBIN_OP_RETURN (EXPR_NOT, false, false);
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
875 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
876
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
877 "(" {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
878 LEXER_DEBUG ("(");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
879
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
880 // 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
881 // 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
882 // 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
883 // the matching close paren).
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
884
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
885 curr_lexer->looking_at_object_index.push_front
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
886 (curr_lexer->looking_for_object_index);
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
887
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
888 curr_lexer->looking_at_indirect_ref = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
889 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
890 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
891
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
892 curr_lexer->nesting_level.paren ();
985
4b483cf9f6b0 [project @ 1994-12-14 18:06:38 by jwe]
jwe
parents: 975
diff changeset
893 promptflag--;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
894
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
895 TOK_RETURN ('(');
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
896 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
897
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
898 ")" {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
899 LEXER_DEBUG (")");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
900
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
901 curr_lexer->nesting_level.remove ();
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
902 curr_lexer->current_input_column++;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
903
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
904 curr_lexer->looking_at_object_index.pop_front ();
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
905
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
906 curr_lexer->quote_is_transpose = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
907 curr_lexer->convert_spaces_to_comma
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
908 = (curr_lexer->nesting_level.is_bracket_or_brace ()
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
909 && ! curr_lexer->looking_at_anon_fcn_args);
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
910 curr_lexer->looking_for_object_index = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
911 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
912
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
913 if (curr_lexer->looking_at_anon_fcn_args)
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
914 curr_lexer->looking_at_anon_fcn_args = false;
13237
1bfca2bbea8b fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents: 12801
diff changeset
915
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
916 do_comma_insert_check ();
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
917
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
918 COUNT_TOK_AND_RETURN (')');
967
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
919 }
b228d6cd59a1 [project @ 1994-12-10 00:15:41 by jwe]
jwe
parents: 947
diff changeset
920
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
921 "." {
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
922 LEXER_DEBUG (".");
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
923
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
924 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
925 curr_lexer->at_beginning_of_statement = false;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
926
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
927 TOK_RETURN ('.');
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
928 }
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
929
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
930 "+=" { 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
931 "-=" { 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
932 "*=" { 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
933 "/=" { 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
934 "\\=" { 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
935 ".+=" { 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
936 ".-=" { 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
937 ".*=" { 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
938 "./=" { 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
939 ".\\=" { 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
940 {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
941 {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
942 "&=" { 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
943 "|=" { 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
944 "<<=" { 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
945 ">>=" { 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
946
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
947 \{{S}* {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
948 LEXER_DEBUG ("\\{{S}*");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
949
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
950 curr_lexer->nesting_level.brace ();
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
951
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
952 curr_lexer->looking_at_object_index.push_front
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
953 (curr_lexer->looking_for_object_index);
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
954
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
955 curr_lexer->current_input_column += yyleng;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
956 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
957 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
958 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
959 curr_lexer->at_beginning_of_statement = false;
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
960
3351
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
961 promptflag--;
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
962 eat_whitespace ();
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
963
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
964 curr_lexer->braceflag++;
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
965 BEGIN (MATRIX_START);
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
966 COUNT_TOK_AND_RETURN ('{');
3351
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
967 }
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
968
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
969 "}" {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
970 LEXER_DEBUG ("}");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
971
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
972 curr_lexer->looking_at_object_index.pop_front ();
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
973
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
974 curr_lexer->looking_for_object_index = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
975 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
976
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
977 curr_lexer->nesting_level.remove ();
3351
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
978
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
979 TOK_RETURN ('}');
3351
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
980 }
8623649c967c [project @ 1999-11-15 16:17:01 by jwe]
jwe
parents: 3332
diff changeset
981
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
982 %{
2066
a75d2a5d6783 [project @ 1996-04-11 21:20:43 by jwe]
jwe
parents: 2042
diff changeset
983 // Unrecognized input is a lexical error.
968
9351572b7210 [project @ 1994-12-11 21:53:00 by jwe]
jwe
parents: 967
diff changeset
984 %}
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
985
2042
31f4f775b8c6 [project @ 1996-03-28 09:06:28 by jwe]
jwe
parents: 1994
diff changeset
986 . {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
987 LEXER_DEBUG (".");
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
988
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
989 xunput (yytext[0], yytext);
4248
eef64f3f9a4c [project @ 2002-12-31 00:00:20 by jwe]
jwe
parents: 4241
diff changeset
990
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
991 int c = text_yyinput ();
4248
eef64f3f9a4c [project @ 2002-12-31 00:00:20 by jwe]
jwe
parents: 4241
diff changeset
992
eef64f3f9a4c [project @ 2002-12-31 00:00:20 by jwe]
jwe
parents: 4241
diff changeset
993 if (c != EOF)
4240
8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe]
jwe
parents: 4238
diff changeset
994 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
995 curr_lexer->current_input_column++;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
996
15466
d174210ce1ec use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
997 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
998 undo_string_escape (static_cast<char> (c)), c,
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
999 curr_lexer->input_line_number, curr_lexer->current_input_column);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1000
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1001 return LEXICAL_ERROR;
4240
8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe]
jwe
parents: 4238
diff changeset
1002 }
8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe]
jwe
parents: 4238
diff changeset
1003 else
8627d992beb8 [project @ 2002-12-25 23:07:03 by jwe]
jwe
parents: 4238
diff changeset
1004 TOK_RETURN (END_OF_INPUT);
2066
a75d2a5d6783 [project @ 1996-04-11 21:20:43 by jwe]
jwe
parents: 2042
diff changeset
1005 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1006
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1007 %%
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1008
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1009 // GAG.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1010 //
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1011 // 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
1012 // that we insert a comma ahead of it.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1013
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
1014 void
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1015 do_comma_insert_check (void)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1016 {
16106
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
1017 bool spc_gobbled = (eat_continuation () != lexical_feedback::NO_WHITESPACE);
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
1018
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
1019 int c = text_yyinput ();
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
1020
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1021 xunput (c, yytext);
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
1022
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
1023 if (spc_gobbled)
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1024 xunput (' ', yytext);
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1025
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1026 curr_lexer->do_comma_insert = (! curr_lexer->looking_at_object_index.front ()
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1027 && curr_lexer->bracketflag && c == '[');
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1028 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1029
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1030 // 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
1031 // 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
1032 // doing any parsing.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1033
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1034 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1035 reset_parser (void)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1036 {
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1037 // Start off on the right foot.
4323
0990c9b77109 [project @ 2003-02-14 07:36:26 by jwe]
jwe
parents: 4318
diff changeset
1038 BEGIN (INITIAL);
4318
115bffcecfd3 [project @ 2003-02-13 05:52:16 by jwe]
jwe
parents: 4264
diff changeset
1039
14329
8d1ae996c122 also save and restore symbol table context in parser (bug #35448)
John W. Eaton <jwe@octave.org>
parents: 14294
diff changeset
1040 parser_symtab_context.clear ();
287
6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe]
jwe
parents: 246
diff changeset
1041
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1042 // We do want a prompt by default.
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1043 promptflag = 1;
287
6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe]
jwe
parents: 246
diff changeset
1044
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1045 // 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
1046 // input.
14074
f90c3facfac3 don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents: 13973
diff changeset
1047
f90c3facfac3 don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents: 13973
diff changeset
1048 if (! quitting_gracefully
f90c3facfac3 don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents: 13973
diff changeset
1049 && (interactive || forced_interactive)
3880
c21ae2c5840f [project @ 2002-03-26 02:23:06 by jwe]
jwe
parents: 3867
diff changeset
1050 && ! (reading_fcn_file
14074
f90c3facfac3 don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents: 13973
diff changeset
1051 || reading_classdef_file
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1052 || reading_script_file
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1053 || get_input_from_eval_string
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1054 || input_from_startup_file))
287
6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe]
jwe
parents: 246
diff changeset
1055 yyrestart (stdin);
991
18be848f10a9 [project @ 1994-12-15 06:06:46 by jwe]
jwe
parents: 985
diff changeset
1056
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
1057 // Clear the buffer for help text.
4426
51a0dcde8778 [project @ 2003-06-13 19:16:37 by jwe]
jwe
parents: 4410
diff changeset
1058 while (! help_buf.empty ())
51a0dcde8778 [project @ 2003-06-13 19:16:37 by jwe]
jwe
parents: 4410
diff changeset
1059 help_buf.pop ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1060 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1061
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1062 static void
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1063 display_character (char c)
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1064 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1065 if (isgraph (c))
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1066 std::cerr << c;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1067 else
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1068 switch (c)
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1069 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1070 case 0:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1071 std::cerr << "NUL";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1072 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1073
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1074 case 1:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1075 std::cerr << "SOH";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1076 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1077
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1078 case 2:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1079 std::cerr << "STX";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1080 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1081
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1082 case 3:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1083 std::cerr << "ETX";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1084 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1085
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1086 case 4:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1087 std::cerr << "EOT";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1088 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1089
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1090 case 5:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1091 std::cerr << "ENQ";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1092 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1093
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1094 case 6:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1095 std::cerr << "ACK";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1096 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1097
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1098 case 7:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1099 std::cerr << "\\a";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1100 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1101
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1102 case 8:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1103 std::cerr << "\\b";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1104 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1105
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1106 case 9:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1107 std::cerr << "\\t";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1108 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1109
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1110 case 10:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1111 std::cerr << "\\n";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1112 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1113
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1114 case 11:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1115 std::cerr << "\\v";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1116 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1117
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1118 case 12:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1119 std::cerr << "\\f";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1120 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1121
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1122 case 13:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1123 std::cerr << "\\r";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1124 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1125
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1126 case 14:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1127 std::cerr << "SO";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1128 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1129
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1130 case 15:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1131 std::cerr << "SI";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1132 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1133
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1134 case 16:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1135 std::cerr << "DLE";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1136 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1137
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1138 case 17:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1139 std::cerr << "DC1";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1140 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1141
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1142 case 18:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1143 std::cerr << "DC2";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1144 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1145
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1146 case 19:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1147 std::cerr << "DC3";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1148 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1149
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1150 case 20:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1151 std::cerr << "DC4";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1152 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1153
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1154 case 21:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1155 std::cerr << "NAK";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1156 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1157
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1158 case 22:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1159 std::cerr << "SYN";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1160 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1161
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1162 case 23:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1163 std::cerr << "ETB";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1164 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1165
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1166 case 24:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1167 std::cerr << "CAN";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1168 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1169
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1170 case 25:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1171 std::cerr << "EM";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1172 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1173
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1174 case 26:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1175 std::cerr << "SUB";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1176 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1177
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1178 case 27:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1179 std::cerr << "ESC";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1180 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1181
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1182 case 28:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1183 std::cerr << "FS";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1184 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1185
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1186 case 29:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1187 std::cerr << "GS";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1188 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1189
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1190 case 30:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1191 std::cerr << "RS";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1192 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1193
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1194 case 31:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1195 std::cerr << "US";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1196 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1197
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1198 case 32:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1199 std::cerr << "SPACE";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1200 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1201
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1202 case 127:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1203 std::cerr << "DEL";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1204 break;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1205 }
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1206 }
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1207
16111
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1208 lexical_feedback::~lexical_feedback (void)
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1209 {
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1210 // Clear out the stack of token info used to track line and
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1211 // column numbers.
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1212
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1213 while (! token_stack.empty ())
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1214 {
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1215 delete token_stack.top ();
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1216 token_stack.pop ();
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1217 }
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1218 }
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1219
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1220 static int
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1221 text_yyinput (void)
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1222 {
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1223 int c = yyinput ();
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1224
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1225 if (lexer_debug_flag)
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1226 {
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1227 std::cerr << "I: ";
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1228 display_character (c);
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1229 std::cerr << std::endl;
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1230 }
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1231
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1232 // 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
1233
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1234 if (c == '\r')
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1235 {
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1236 c = yyinput ();
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1237
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1238 if (lexer_debug_flag)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1239 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1240 std::cerr << "I: ";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1241 display_character (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1242 std::cerr << std::endl;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1243 }
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1244
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1245 if (c != '\n')
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1246 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1247 xunput (c, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1248 c = '\n';
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1249 }
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1250 }
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1251
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1252 if (c == '\n')
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1253 curr_lexer->input_line_number++;
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1254
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1255 return c;
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1256 }
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1257
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1258 static void
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1259 xunput (char c, char *buf)
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1260 {
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1261 if (lexer_debug_flag)
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1262 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1263 std::cerr << "U: ";
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1264 display_character (c);
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1265 std::cerr << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1266 }
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1267
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1268 if (c == '\n')
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1269 curr_lexer->input_line_number--;
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1270
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1271 yyunput (c, buf);
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1272 }
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1273
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1274 // 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
1275 // really looking at.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1276
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1277 static void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1278 fixup_column_count (char *s)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1279 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1280 char c;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1281 while ((c = *s++) != '\0')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1282 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1283 if (c == '\n')
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1284 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1285 curr_lexer->input_line_number++;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1286 curr_lexer->current_input_column = 1;
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1287 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1288 else
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1289 curr_lexer->current_input_column++;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1290 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1291 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1292
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1293 // 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
1294
3332
7c03933635c6 [project @ 1999-11-02 06:57:12 by jwe]
jwe
parents: 3263
diff changeset
1295 int
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1296 yywrap (void)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1297 {
287
6027a905fc06 [project @ 1994-01-13 01:41:00 by jwe]
jwe
parents: 246
diff changeset
1298 return 1;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1299 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1300
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1301 // Tell us all what the current buffer is.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1302
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1303 YY_BUFFER_STATE
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1304 current_buffer (void)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1305 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1306 return YY_CURRENT_BUFFER;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1307 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1308
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1309 // Create a new buffer.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1310
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1311 YY_BUFFER_STATE
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1312 create_buffer (FILE *f)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1313 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1314 return yy_create_buffer (f, YY_BUF_SIZE);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1315 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1316
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1317 // Start reading a new buffer.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1318
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1319 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1320 switch_to_buffer (YY_BUFFER_STATE buf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1321 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1322 yy_switch_to_buffer (buf);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1323 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1324
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1325 // Delete a buffer.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1326
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1327 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1328 delete_buffer (YY_BUFFER_STATE buf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1329 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1330 yy_delete_buffer (buf);
14510
c20de00a66a9 avoid memory error in 'octave --eval 0' (bug #36038)
Max Brister <max@2bass.com>
parents: 14329
diff changeset
1331
c20de00a66a9 avoid memory error in 'octave --eval 0' (bug #36038)
Max Brister <max@2bass.com>
parents: 14329
diff changeset
1332 // 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
1333 if (! current_buffer ())
c20de00a66a9 avoid memory error in 'octave --eval 0' (bug #36038)
Max Brister <max@2bass.com>
parents: 14329
diff changeset
1334 yyin = 0;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1335 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1336
13973
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1337 // Delete all buffers from the stack.
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1338 void
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1339 clear_all_buffers (void)
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1340 {
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1341 while (current_buffer ())
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1342 octave_pop_buffer_state ();
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1343 }
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1344
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1345 void
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1346 cleanup_parser (void)
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1347 {
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1348 reset_parser ();
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1349
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1350 clear_all_buffers ();
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1351 }
2c664266e9d0 clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents: 13260
diff changeset
1352
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1353 // Restore a buffer (for unwind-prot).
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1354
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1355 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1356 restore_input_buffer (void *buf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1357 {
2861
6dcb8e1c9bb2 [project @ 1997-04-13 23:21:38 by jwe]
jwe
parents: 2857
diff changeset
1358 switch_to_buffer (static_cast<YY_BUFFER_STATE> (buf));
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1359 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1360
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1361 // Delete a buffer (for unwind-prot).
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1362
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1363 void
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1364 delete_input_buffer (void *buf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1365 {
2861
6dcb8e1c9bb2 [project @ 1997-04-13 23:21:38 by jwe]
jwe
parents: 2857
diff changeset
1366 delete_buffer (static_cast<YY_BUFFER_STATE> (buf));
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1367 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1368
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1369 static bool
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1370 inside_any_object_index (void)
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1371 {
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1372 bool retval = false;
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1373
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1374 for (std::list<bool>::const_iterator i = curr_lexer->looking_at_object_index.begin ();
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1375 i != curr_lexer->looking_at_object_index.end (); i++)
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1376 {
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1377 if (*i)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1378 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1379 retval = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1380 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1381 }
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1382 }
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1383
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1384 return retval;
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1385 }
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
1386
4238
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
1387 // 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
1388
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1389 static int
4867
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
1390 is_keyword_token (const std::string& s)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1391 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1392 int l = curr_lexer->input_line_number;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1393 int c = curr_lexer->current_input_column;
3805
44386b0e53da [project @ 2001-03-01 16:54:31 by jwe]
jwe
parents: 3802
diff changeset
1394
1823
5cdd59e7579a [project @ 1996-02-01 12:45:05 by jwe]
jwe
parents: 1755
diff changeset
1395 int len = s.length ();
922
708827b941b4 [project @ 1994-11-14 22:14:13 by jwe]
jwe
parents: 916
diff changeset
1396
5088
7830f271a53f [project @ 2004-12-01 19:54:45 by jwe]
jwe
parents: 5035
diff changeset
1397 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
1398
1497
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1399 if (kw)
143
7849db4b6dbc [project @ 1993-10-04 02:36:45 by jwe]
jwe
parents: 120
diff changeset
1400 {
1497
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1401 yylval.tok_val = 0;
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1402
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1403 switch (kw->kw_id)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1404 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1405 case break_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1406 case catch_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1407 case continue_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1408 case else_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1409 case otherwise_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1410 case return_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1411 case unwind_protect_cleanup_kw:
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1412 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1413 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1414
14294
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1415 case static_kw:
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1416 if ((reading_fcn_file || reading_script_file
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1417 || reading_classdef_file)
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1418 && ! curr_fcn_file_full_name.empty ())
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1419 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
1420 "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'",
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1421 curr_lexer->input_line_number,
14294
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1422 curr_fcn_file_full_name.c_str ());
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1423 else
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1424 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
1425 "the 'static' keyword is obsolete and will be removed from a future version of Octave; please use 'persistent' instead; near line %d",
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1426 curr_lexer->input_line_number);
14294
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1427 // fall through ...
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1428
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1429 case persistent_kw:
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1430 break;
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
1431
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1432 case case_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1433 case elseif_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1434 case global_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1435 case until_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1436 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1437
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1438 case end_kw:
14645
cbc00b587f36 also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents: 14642
diff changeset
1439 if (inside_any_object_index ()
cbc00b587f36 also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents: 14642
diff changeset
1440 || (! reading_classdef_file
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1441 && (curr_lexer->defining_func
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1442 && ! (curr_lexer->looking_at_return_list
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1443 || curr_lexer->parsed_function_name.top ()))))
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1444 return 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1445
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1446 yylval.tok_val = new token (token::simple_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1447 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1448 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1449
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1450 case end_try_catch_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1451 yylval.tok_val = new token (token::try_catch_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1452 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1453 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1454
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1455 case end_unwind_protect_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1456 yylval.tok_val = new token (token::unwind_protect_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1457 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1458 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1459
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1460 case endfor_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1461 yylval.tok_val = new token (token::for_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1462 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1463 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1464
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1465 case endfunction_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1466 yylval.tok_val = new token (token::function_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1467 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1468 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1469
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1470 case endif_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1471 yylval.tok_val = new token (token::if_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1472 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1473 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1474
13246
0c69a564f2be additional parfor changes
John W. Eaton <jwe@octave.org>
parents: 13245
diff changeset
1475 case endparfor_kw:
0c69a564f2be additional parfor changes
John W. Eaton <jwe@octave.org>
parents: 13245
diff changeset
1476 yylval.tok_val = new token (token::parfor_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1477 curr_lexer->at_beginning_of_statement = true;
13246
0c69a564f2be additional parfor changes
John W. Eaton <jwe@octave.org>
parents: 13245
diff changeset
1478 break;
0c69a564f2be additional parfor changes
John W. Eaton <jwe@octave.org>
parents: 13245
diff changeset
1479
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1480 case endswitch_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1481 yylval.tok_val = new token (token::switch_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1482 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1483 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1484
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1485 case endwhile_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1486 yylval.tok_val = new token (token::while_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1487 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1488 break;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1489
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1490 case endclassdef_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1491 yylval.tok_val = new token (token::classdef_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1492 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1493 break;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1494
13249
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1495 case endenumeration_kw:
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1496 yylval.tok_val = new token (token::enumeration_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1497 curr_lexer->at_beginning_of_statement = true;
13249
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1498 break;
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1499
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1500 case endevents_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1501 yylval.tok_val = new token (token::events_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1502 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1503 break;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1504
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1505 case endmethods_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1506 yylval.tok_val = new token (token::methods_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1507 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1508 break;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1509
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1510 case endproperties_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1511 yylval.tok_val = new token (token::properties_end, l, c);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1512 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1513 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1514
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
1515
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1516 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
1517 case parfor_kw:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1518 case while_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1519 promptflag--;
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1520 curr_lexer->looping++;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1521 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1522
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1523 case do_kw:
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1524 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1525 promptflag--;
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1526 curr_lexer->looping++;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1527 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1528
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1529 case try_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1530 case unwind_protect_kw:
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1531 curr_lexer->at_beginning_of_statement = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1532 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1533 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1534
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1535 case if_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1536 case switch_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1537 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1538 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1539
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1540 case get_kw:
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1541 case set_kw:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1542 // 'get' and 'set' are keywords in classdef method
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1543 // declarations.
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1544 if (! curr_lexer->maybe_classdef_get_set_method)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1545 return 0;
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
13249
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1548 case enumeration_kw:
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1549 case events_kw:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1550 case methods_kw:
13249
7861a5fd3479 accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents: 13246
diff changeset
1551 case properties_kw:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1552 // 'properties', 'methods' and 'events' are keywords for
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1553 // classdef blocks.
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1554 if (! curr_lexer->parsing_classdef)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1555 return 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1556 // fall through ...
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 classdef_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1559 // 'classdef' is always a keyword.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1560 promptflag--;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1561 break;
10315
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 function_kw:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1564 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1565
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1566 curr_lexer->defining_func++;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1567 curr_lexer->parsed_function_name.push (false);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1568
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1569 if (! (reading_fcn_file || reading_script_file
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1570 || reading_classdef_file))
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1571 curr_lexer->input_line_number = 1;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1572 break;
1497
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1573
3174
390d5e396682 [project @ 1998-05-04 16:36:17 by jwe]
jwe
parents: 3165
diff changeset
1574 case magic_file_kw:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1575 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1576 if ((reading_fcn_file || reading_script_file
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1577 || reading_classdef_file)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1578 && ! curr_fcn_file_full_name.empty ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1579 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
1580 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1581 yylval.tok_val = new token ("stdin", l, c);
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 break;
3174
390d5e396682 [project @ 1998-05-04 16:36:17 by jwe]
jwe
parents: 3165
diff changeset
1584
390d5e396682 [project @ 1998-05-04 16:36:17 by jwe]
jwe
parents: 3165
diff changeset
1585 case magic_line_kw:
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1586 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
1587 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1588
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1589 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1590 panic_impossible ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1591 }
1497
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1592
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1593 if (! yylval.tok_val)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1594 yylval.tok_val = new token (l, c);
1497
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1595
16111
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
1596 curr_lexer->token_stack.push (yylval.tok_val);
1497
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1597
48a0b289f1be [project @ 1995-09-30 22:04:27 by jwe]
jwe
parents: 1489
diff changeset
1598 return kw->tok;
143
7849db4b6dbc [project @ 1993-10-04 02:36:45 by jwe]
jwe
parents: 120
diff changeset
1599 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1600
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1601 return 0;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1602 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1603
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
1604 static bool
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1605 is_variable (const std::string& name)
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
1606 {
8001
ff9e7873f8ea improve handling of command-style names in matrix_or_assign_lhs context
John W. Eaton <jwe@octave.org>
parents: 7898
diff changeset
1607 return (symbol_table::is_variable (name)
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1608 || (curr_lexer->pending_local_variables.find (name)
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1609 != curr_lexer->pending_local_variables.end ()));
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
1610 }
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
1611
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1612 static std::string
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1613 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
1614 {
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1615 std::string buf;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1616
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1617 bool at_bol = true;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1618 bool look_for_marker = false;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1619
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1620 bool warned_incompatible = false;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1621
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1622 int c = 0;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1623
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1624 while ((c = reader.getc ()) != EOF)
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1625 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1626 curr_lexer->current_input_column++;
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1627
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1628 if (look_for_marker)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1629 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1630 at_bol = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1631 look_for_marker = false;
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 if (c == '{' || c == '}')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1634 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1635 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
1636
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1637 int type = c;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1638
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1639 bool done = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1640
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1641 while ((c = reader.getc ()) != EOF && ! done)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1642 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1643 curr_lexer->current_input_column++;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1644
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1645 switch (c)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1646 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1647 case ' ':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1648 case '\t':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1649 tmp_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1650 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1651
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1652 case '\n':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1653 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1654 curr_lexer->current_input_column = 0;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1655 at_bol = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1656 done = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1657
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1658 if (type == '{')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1659 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1660 curr_lexer->block_comment_nesting_level++;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1661 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1662 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1663 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1664 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1665 curr_lexer->block_comment_nesting_level--;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1666 promptflag++;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1667
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1668 if (curr_lexer->block_comment_nesting_level == 0)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1669 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1670 buf += grab_comment_block (reader, true, eof);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1671
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1672 return buf;
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 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1675 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1676 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1677
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1678 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1679 at_bol = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1680 tmp_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1681 buf += tmp_buf;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1682 done = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1683 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1684 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1685 }
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 }
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1688
7898
cce16b4e0970 lex.l (grab_block_comment): Use parens around || expression within && expression
John W. Eaton <jwe@octave.org>
parents: 7728
diff changeset
1689 if (at_bol && (c == '%' || c == '#'))
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1690 {
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1691 if (c == '#' && ! warned_incompatible)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1692 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1693 warned_incompatible = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1694 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1695 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1696
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1697 at_bol = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1698 look_for_marker = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1699 }
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1700 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1701 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1702 buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1703
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1704 if (c == '\n')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1705 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1706 curr_lexer->current_input_column = 0;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1707 at_bol = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1708 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1709 }
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1710 }
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1711
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1712 if (c == EOF)
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1713 eof = true;
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 return buf;
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1716 }
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1717
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1718 std::string
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1719 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
1720 bool& eof)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1721 {
4426
51a0dcde8778 [project @ 2003-06-13 19:16:37 by jwe]
jwe
parents: 4410
diff changeset
1722 std::string buf;
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1723
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1724 // 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
1725 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
1726
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1727 // 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
1728 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
1729
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1730 bool warned_incompatible = false;
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
1731
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1732 int c = 0;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1733
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1734 while ((c = reader.getc ()) != EOF)
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1735 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1736 curr_lexer->current_input_column++;
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1737
2300
9484969866d2 [project @ 1996-06-24 07:13:26 by jwe]
jwe
parents: 2200
diff changeset
1738 if (begin_comment)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1739 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1740 if (c == '%' || c == '#')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1741 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1742 at_bol = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1743 continue;
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 else if (at_bol && c == '{')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1746 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1747 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
1748
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1749 bool done = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1750
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1751 while ((c = reader.getc ()) != EOF && ! done)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1752 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1753 curr_lexer->current_input_column++;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1754
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1755 switch (c)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1756 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1757 case ' ':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1758 case '\t':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1759 tmp_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1760 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1761
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1762 case '\n':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1763 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1764 curr_lexer->current_input_column = 0;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1765 at_bol = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1766 done = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1767
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1768 curr_lexer->block_comment_nesting_level++;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1769 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1770
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1771 buf += grab_block_comment (reader, eof);
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 in_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1774
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1775 if (eof)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1776 goto done;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1777 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1778 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1779
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1780 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1781 at_bol = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1782 tmp_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1783 buf += tmp_buf;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1784 done = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1785 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1786 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1787 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1788 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1789 else
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 at_bol = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1792 begin_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1793 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1794 }
2300
9484969866d2 [project @ 1996-06-24 07:13:26 by jwe]
jwe
parents: 2200
diff changeset
1795
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1796 if (in_comment)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1797 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1798 buf += static_cast<char> (c);
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 if (c == '\n')
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 at_bol = true;
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1803 curr_lexer->current_input_column = 0;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1804 in_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1805
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1806 // FIXME -- bailing out here prevents things like
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1807 //
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1808 // octave> # comment
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1809 // octave> x = 1
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1810 //
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1811 // from failing at the command line, while still
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1812 // allowing blocks of comments to be grabbed properly
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1813 // 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
1814 // 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
1815 // 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
1816 // better way of collecting these comments...
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1817 if (! (reading_fcn_file || reading_script_file))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1818 goto done;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1819 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1820 }
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1821 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1822 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1823 switch (c)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1824 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1825 case ' ':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1826 case '\t':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1827 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1828
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1829 case '#':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1830 if (! warned_incompatible)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1831 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1832 warned_incompatible = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1833 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1834 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1835 // fall through...
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1836
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1837 case '%':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1838 in_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1839 begin_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1840 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1841
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1842 default:
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1843 curr_lexer->current_input_column--;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1844 reader.ungetc (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1845 goto done;
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 }
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1848 }
991
18be848f10a9 [project @ 1994-12-15 06:06:46 by jwe]
jwe
parents: 985
diff changeset
1849
1019
7a632c749c67 [project @ 1995-01-09 18:58:33 by jwe]
jwe
parents: 1009
diff changeset
1850 done:
991
18be848f10a9 [project @ 1994-12-15 06:06:46 by jwe]
jwe
parents: 985
diff changeset
1851
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1852 if (c == EOF)
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1853 eof = true;
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1854
4426
51a0dcde8778 [project @ 2003-06-13 19:16:37 by jwe]
jwe
parents: 4410
diff changeset
1855 return buf;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1856 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1857
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1858 class
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1859 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
1860 {
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1861 public:
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1862 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
1863
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
1864 int getc (void) { return ::text_yyinput (); }
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1865 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
1866
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1867 private:
12122
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
1868
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
1869 // No copying!
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
1870
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
1871 flex_stream_reader (const flex_stream_reader&);
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
1872
12174
db1f49eaba6b whitespace fixes
John W. Eaton <jwe@octave.org>
parents: 12122
diff changeset
1873 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
1874
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1875 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
1876 };
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1877
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1878 static int
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1879 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
1880 {
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1881 eof = false;
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1882
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1883 std::string help_txt;
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1884
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1885 if (! help_buf.empty ())
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1886 help_txt = help_buf.top ();
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1887
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1888 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
1889
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1890 // 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
1891 // initially looking at a block comment.
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1892
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1893 std::string txt = start_in_block
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1894 ? grab_block_comment (flex_reader, eof)
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
1895 : 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
1896
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1897 if (lexer_debug_flag)
8536
de1b944d5306 lex.l: finish previous change
John W. Eaton <jwe@octave.org>
parents: 8535
diff changeset
1898 std::cerr << "C: " << txt << std::endl;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
1899
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1900 if (help_txt.empty () && curr_lexer->nesting_level.none ())
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1901 {
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1902 if (! help_buf.empty ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1903 help_buf.pop ();
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1904
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1905 help_buf.push (txt);
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1906 }
7720
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1907
4e2eafef689c unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents: 7715
diff changeset
1908 octave_comment_buffer::append (txt);
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1909
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1910 curr_lexer->current_input_column = 1;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1911 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1912 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1913 curr_lexer->at_beginning_of_statement = true;
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1914
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1915 if (YY_START == COMMAND_START)
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1916 BEGIN (INITIAL);
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1917
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1918 if (curr_lexer->nesting_level.none ())
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
1919 return '\n';
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
1920 else if (curr_lexer->nesting_level.is_bracket_or_brace ())
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1921 return ';';
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1922 else
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1923 return 0;
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1924 }
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
1925
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1926 // 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
1927 // string.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1928
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
1929 static bool
2804
eedc2f3f61f7 [project @ 1997-03-11 04:34:50 by jwe]
jwe
parents: 2764
diff changeset
1930 match_any (char c, const char *s)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1931 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1932 char tmp;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1933 while ((tmp = *s++) != '\0')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1934 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1935 if (c == tmp)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1936 return true;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1937 }
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
1938 return false;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1939 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1940
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1941 // Given information about the spacing surrounding an operator,
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1942 // 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
1943 // operator. For example,
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1944 //
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
1945 // [ 1 + 2 ] or [ 1+ 2] or [ 1+2 ] ==> binary
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
1946 //
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
1947 // [ 1 +2 ] ==> unary
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1948
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
1949 static bool
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
1950 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
1951 {
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
1952 bool spc_next = (next_char == ' ' || next_char == '\t');
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
1953
608
a675e03540dd [project @ 1994-08-13 23:50:19 by jwe]
jwe
parents: 584
diff changeset
1954 return ((spc_prev && spc_next) || ! spc_prev);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1955 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1956
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
1957 // 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
1958 // replaced by a single LF.
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
1959
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
1960 static bool
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
1961 next_token_is_sep_op (void)
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
1962 {
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
1963 bool retval = false;
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
1964
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
1965 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
1966
13820b9f5fd9 more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents: 7723
diff changeset
1967 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
1968
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1969 xunput (c, yytext);
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
1970
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
1971 return retval;
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
1972 }
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
1973
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
1974 // 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
1975 // 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
1976
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
1977 static bool
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
1978 next_token_is_postfix_unary_op (bool spc_prev)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1979 {
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
1980 bool un_op = false;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1981
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
1982 int c0 = text_yyinput ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1983
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
1984 if (c0 == '\'' && ! spc_prev)
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
1985 {
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
1986 un_op = true;
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
1987 }
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
1988 else if (c0 == '.')
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
1989 {
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
1990 int c1 = text_yyinput ();
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
1991 un_op = (c1 == '\'');
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1992 xunput (c1, yytext);
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
1993 }
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
1994 else if (c0 == '+')
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
1995 {
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
1996 int c1 = text_yyinput ();
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
1997 un_op = (c1 == '+');
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
1998 xunput (c1, yytext);
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
1999 }
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2000 else if (c0 == '-')
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2001 {
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
2002 int c1 = text_yyinput ();
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2003 un_op = (c1 == '-');
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2004 xunput (c1, yytext);
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2005 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2006
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2007 xunput (c0, yytext);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2008
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2009 return un_op;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2010 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2011
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2012 // 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
2013 // operator.
1521
b3e4ca4f75a0 [project @ 1995-10-04 05:10:36 by jwe]
jwe
parents: 1520
diff changeset
2014 //
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2015 // 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
2016 // 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
2017 // 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
2018 // 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
2019 //
3779
3001e15555e9 [project @ 2001-02-07 04:47:51 by jwe]
jwe
parents: 3774
diff changeset
2020 // 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
2021 // (e.g., the characters '[' 'a' ' ' '+' '\' LFD 'b' ']') will be
3001e15555e9 [project @ 2001-02-07 04:47:51 by jwe]
jwe
parents: 3774
diff changeset
2022 // parsed as a binary operator.
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2023
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2024 static bool
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2025 next_token_is_bin_op (bool spc_prev)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2026 {
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2027 bool bin_op = false;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2028
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
2029 int c0 = text_yyinput ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2030
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2031 switch (c0)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2032 {
777
a2f9d3fd720c [project @ 1994-10-07 14:01:53 by jwe]
jwe
parents: 767
diff changeset
2033 case '+':
a2f9d3fd720c [project @ 1994-10-07 14:01:53 by jwe]
jwe
parents: 767
diff changeset
2034 case '-':
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2035 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2036 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2037
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2038 switch (c1)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2039 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2040 case '+':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2041 case '-':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2042 // Unary ops, spacing doesn't matter.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2043 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2044
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2045 case '=':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2046 // Binary ops, spacing doesn't matter.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2047 bin_op = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2048 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2049
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2050 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2051 // Could be either, spacing matters.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2052 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
2053 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2054 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2055
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2056 xunput (c1, yytext);
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2057 }
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2058 break;
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2059
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2060 case ':':
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2061 case '/':
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2062 case '\\':
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2063 case '^':
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2064 // Always a binary op (may also include /=, \=, and ^=).
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2065 bin_op = true;
1276
cbdf7db98554 [project @ 1995-04-24 15:31:24 by jwe]
jwe
parents: 1273
diff changeset
2066 break;
cbdf7db98554 [project @ 1995-04-24 15:31:24 by jwe]
jwe
parents: 1273
diff changeset
2067
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2068 // .+ .- ./ .\ .^ .* .**
1554
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe]
jwe
parents: 1521
diff changeset
2069 case '.':
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe]
jwe
parents: 1521
diff changeset
2070 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2071 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2072
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2073 if (match_any (c1, "+-/\\^*"))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2074 // Always a binary op (may also include .+=, .-=, ./=, ...).
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2075 bin_op = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2076 else if (! isdigit (c1) && c1 != ' ' && c1 != '\t' && c1 != '.')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2077 // A structure element reference is a binary op.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2078 bin_op = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2079
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2080 xunput (c1, yytext);
1554
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe]
jwe
parents: 1521
diff changeset
2081 }
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe]
jwe
parents: 1521
diff changeset
2082 break;
b1ba1894bccc [project @ 1995-10-09 13:31:42 by jwe]
jwe
parents: 1521
diff changeset
2083
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2084 // = == & && | || * **
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2085 case '=':
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2086 case '&':
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2087 case '|':
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2088 case '*':
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2089 // Always a binary op (may also include ==, &&, ||, **).
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2090 bin_op = true;
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2091 break;
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2092
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2093 // < <= <> > >=
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2094 case '<':
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2095 case '>':
3774
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2096 // Always a binary op (may also include <=, <>, >=).
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2097 bin_op = true;
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2098 break;
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2099
de61a7ba91f2 [project @ 2001-02-05 16:54:04 by jwe]
jwe
parents: 3698
diff changeset
2100 // ~= !=
777
a2f9d3fd720c [project @ 1994-10-07 14:01:53 by jwe]
jwe
parents: 767
diff changeset
2101 case '~':
a2f9d3fd720c [project @ 1994-10-07 14:01:53 by jwe]
jwe
parents: 767
diff changeset
2102 case '!':
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2103 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2104 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2105
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2106 // ~ and ! can be unary ops, so require following =.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2107 if (c1 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2108 bin_op = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2109
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2110 xunput (c1, yytext);
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2111 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2112 break;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2113
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2114 default:
1276
cbdf7db98554 [project @ 1995-04-24 15:31:24 by jwe]
jwe
parents: 1273
diff changeset
2115 break;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2116 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2117
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2118 xunput (c0, yytext);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2119
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2120 return bin_op;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2121 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2122
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2123 // Used to delete trailing white space from tokens.
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
2124
3536
e8fbc8c3d6d9 [project @ 2000-02-02 12:01:00 by jwe]
jwe
parents: 3523
diff changeset
2125 static std::string
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2126 strip_trailing_whitespace (char *s)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2127 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
2128 std::string retval = s;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2129
1823
5cdd59e7579a [project @ 1996-02-01 12:45:05 by jwe]
jwe
parents: 1755
diff changeset
2130 size_t pos = retval.find_first_of (" \t");
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2131
8021
85184151822e fix typo in NPOS change
John W. Eaton <jwe@octave.org>
parents: 8019
diff changeset
2132 if (pos != std::string::npos)
1823
5cdd59e7579a [project @ 1996-02-01 12:45:05 by jwe]
jwe
parents: 1755
diff changeset
2133 retval.resize (pos);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2134
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2135 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2136 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2137
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
2138 // 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
2139
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2140 static void
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2141 scan_for_comments (const char *text)
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2142 {
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2143 std::string comment_buf;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2144
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2145 bool in_comment = false;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2146 bool beginning_of_comment = false;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2147
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2148 int len = strlen (text);
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2149 int i = 0;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2150
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2151 while (i < len)
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2152 {
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2153 char c = text[i++];
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2154
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2155 switch (c)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2156 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2157 case '%':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2158 case '#':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2159 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2160 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2161 if (! beginning_of_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2162 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2163 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2164 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2165 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2166 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2167 in_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2168 beginning_of_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2169 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2170 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2171
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2172 case '\n':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2173 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2174 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2175 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2176 octave_comment_buffer::append (comment_buf);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2177 comment_buf.resize (0);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2178 in_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2179 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2180 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2181 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2182
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2183 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2184 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2185 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2186 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2187 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2188 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2189 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2190 }
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2191 }
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2192
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2193 if (! comment_buf.empty ())
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2194 octave_comment_buffer::append (comment_buf);
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2195 }
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2196
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2197 // Discard whitespace, including comments and continuations.
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2198
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
2199 // 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
2200
16106
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
2201 static int
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2202 eat_whitespace (void)
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2203 {
16106
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
2204 int retval = lexical_feedback::NO_WHITESPACE;
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2205
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2206 std::string comment_buf;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2207
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2208 bool in_comment = false;
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2209 bool beginning_of_comment = false;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2210
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2211 int c = 0;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2212
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
2213 while ((c = text_yyinput ()) != EOF)
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2214 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2215 curr_lexer->current_input_column++;
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2216
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2217 switch (c)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2218 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2219 case ' ':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2220 case '\t':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2221 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2222 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2223 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2224 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2225 }
16106
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
2226 retval |= lexical_feedback::SPACE_OR_TAB;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2227 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2228
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2229 case '\n':
16106
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
2230 retval |= lexical_feedback::NEWLINE;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2231 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2232 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2233 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2234 octave_comment_buffer::append (comment_buf);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2235 comment_buf.resize (0);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2236 in_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2237 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2238 }
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2239 curr_lexer->current_input_column = 0;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2240 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2241
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2242 case '#':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2243 case '%':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2244 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2245 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2246 if (! beginning_of_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2247 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2248 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2249 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2250 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2251 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2252 in_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2253 beginning_of_comment = true;
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 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2256
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2257 case '.':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2258 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2259 {
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 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2262 break;
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 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2265 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2266 if (have_ellipsis_continuation ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2267 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2268 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2269 goto done;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2270 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2271
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2272 case '\\':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2273 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2274 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2275 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2276 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2277 break;
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 else
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 if (have_continuation ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2282 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2283 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2284 goto done;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2285 }
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 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2288 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2289 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2290 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2291 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2292 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2293 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2294 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2295 goto done;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2296 }
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2297 }
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2298
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2299 if (! comment_buf.empty ())
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2300 octave_comment_buffer::append (comment_buf);
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2301
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2302 done:
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2303 xunput (c, yytext);
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2304 curr_lexer->current_input_column--;
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2305 return retval;
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2306 }
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2307
3220
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2308 static inline bool
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2309 looks_like_hex (const char *s, int len)
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2310 {
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2311 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
2312 }
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2313
975
e7165acbf96f [project @ 1994-12-12 20:30:19 by jwe]
jwe
parents: 973
diff changeset
2314 static void
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2315 handle_number (void)
972
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2316 {
3220
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2317 double value = 0.0;
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2318 int nread = 0;
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2319
3598
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2320 if (looks_like_hex (yytext, strlen (yytext)))
3220
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2321 {
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2322 unsigned long ival;
3598
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2323
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2324 nread = sscanf (yytext, "%lx", &ival);
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2325
3220
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2326 value = static_cast<double> (ival);
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2327 }
3deb1105fbc1 [project @ 1998-11-19 00:06:30 by jwe]
jwe
parents: 3208
diff changeset
2328 else
3598
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2329 {
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2330 char *tmp = strsave (yytext);
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2331
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2332 char *idx = strpbrk (tmp, "Dd");
2621
337a09dd1c06 [project @ 1997-01-24 21:49:41 by jwe]
jwe
parents: 2614
diff changeset
2333
3598
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2334 if (idx)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2335 *idx = 'e';
3598
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2336
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2337 nread = sscanf (tmp, "%lf", &value);
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2338
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2339 delete [] tmp;
0ae310231c46 [project @ 2000-02-19 08:07:08 by jwe]
jwe
parents: 3575
diff changeset
2340 }
972
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2341
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
2342 // 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
2343
972
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2344 assert (nread == 1);
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2345
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2346 curr_lexer->quote_is_transpose = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2347 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2348 curr_lexer->looking_for_object_index = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2349 curr_lexer->at_beginning_of_statement = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2350
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2351 yylval.tok_val = new token (value, yytext, curr_lexer->input_line_number,
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2352 curr_lexer->current_input_column);
972
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2353
16111
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
2354 curr_lexer->token_stack.push (yylval.tok_val);
972
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2355
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2356 curr_lexer->current_input_column += yyleng;
972
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2357
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2358 do_comma_insert_check ();
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2359 }
3e25eb05b6c6 [project @ 1994-12-12 15:53:47 by jwe]
jwe
parents: 971
diff changeset
2360
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2361 // 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
2362 // 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
2363 // and including the new line character.
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2364 //
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2365 // 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
2366 // 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
2367 // If non-whitespace characters are found before comment
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2368 // characters, return 0. Otherwise, return 1.
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2369
7723
74f5e0c7de9e first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents: 7722
diff changeset
2370 // 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
2371
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2372 static bool
3096
ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe]
jwe
parents: 3079
diff changeset
2373 have_continuation (bool trailing_comments_ok)
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2374 {
5765
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5615
diff changeset
2375 std::ostringstream buf;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2376
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2377 std::string comment_buf;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2378
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2379 bool in_comment = false;
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2380 bool beginning_of_comment = false;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2381
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2382 int c = 0;
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2383
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
2384 while ((c = text_yyinput ()) != EOF)
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2385 {
3802
4f1a26a730fd [project @ 2001-02-26 20:26:14 by jwe]
jwe
parents: 3796
diff changeset
2386 buf << static_cast<char> (c);
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2387
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2388 switch (c)
10315
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 case ' ':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2391 case '\t':
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 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2397 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2398
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2399 case '%':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2400 case '#':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2401 if (trailing_comments_ok)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2402 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2403 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2404 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2405 if (! beginning_of_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2406 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2407 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2408 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2409 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2410 maybe_gripe_matlab_incompatible_comment (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2411 in_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2412 beginning_of_comment = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2413 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2414 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2415 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2416 goto cleanup;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2417 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2418
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2419 case '\n':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2420 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2421 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2422 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2423 octave_comment_buffer::append (comment_buf);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2424 }
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2425 curr_lexer->current_input_column = 0;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2426 promptflag--;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2427 gripe_matlab_incompatible_continuation ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2428 return true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2429
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2430 default:
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2431 if (in_comment)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2432 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2433 comment_buf += static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2434 beginning_of_comment = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2435 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2436 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2437 goto cleanup;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2438 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2439 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2440 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2441
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2442 xunput (c, yytext);
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2443 return false;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2444
3096
ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe]
jwe
parents: 3079
diff changeset
2445 cleanup:
4051
b79da8779a0e [project @ 2002-08-17 19:38:32 by jwe]
jwe
parents: 4037
diff changeset
2446
5765
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5615
diff changeset
2447 std::string s = buf.str ();
4051
b79da8779a0e [project @ 2002-08-17 19:38:32 by jwe]
jwe
parents: 4037
diff changeset
2448
b79da8779a0e [project @ 2002-08-17 19:38:32 by jwe]
jwe
parents: 4037
diff changeset
2449 int len = s.length ();
b79da8779a0e [project @ 2002-08-17 19:38:32 by jwe]
jwe
parents: 4037
diff changeset
2450 while (len--)
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2451 xunput (s[len], yytext);
3096
ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe]
jwe
parents: 3079
diff changeset
2452
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2453 return false;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2454 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2455
15466
d174210ce1ec use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
2456 // 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
2457 // 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
2458 // line character.
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2459
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2460 static bool
3096
ff8b4d6371b3 [project @ 1997-11-14 07:59:14 by jwe]
jwe
parents: 3079
diff changeset
2461 have_ellipsis_continuation (bool trailing_comments_ok)
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2462 {
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
2463 char c1 = text_yyinput ();
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2464 if (c1 == '.')
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2465 {
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
2466 char c2 = text_yyinput ();
1091
54abf1b3a8e9 [project @ 1995-02-02 00:30:14 by jwe]
jwe
parents: 1088
diff changeset
2467 if (c2 == '.' && have_continuation (trailing_comments_ok))
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2468 return true;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2469 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2470 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2471 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2472 xunput (c1, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2473 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2474 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2475 else
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2476 xunput (c1, yytext);
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2477
2857
5448c8cba402 [project @ 1997-03-31 07:06:10 by jwe]
jwe
parents: 2856
diff changeset
2478 return false;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2479 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2480
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2481 // 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
2482 // whitespace on the next line.
16106
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
2483
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
2484 static int
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2485 eat_continuation (void)
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2486 {
16106
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
2487 int retval = lexical_feedback::NO_WHITESPACE;
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2488
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
2489 int c = text_yyinput ();
3665
0689afb1d001 [project @ 2000-05-11 19:07:56 by jwe]
jwe
parents: 3598
diff changeset
2490
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2491 if ((c == '.' && have_ellipsis_continuation ())
3105
f936c7f5074f [project @ 1997-11-19 04:36:17 by jwe]
jwe
parents: 3103
diff changeset
2492 || (c == '\\' && have_continuation ()))
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2493 retval = eat_whitespace ();
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2494 else
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2495 xunput (c, yytext);
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2496
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2497 return retval;
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2498 }
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2499
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2500 static int
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2501 handle_string (char delim)
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2502 {
5765
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe]
jwe
parents: 5615
diff changeset
2503 std::ostringstream buf;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2504
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2505 int bos_line = curr_lexer->input_line_number;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2506 int bos_col = curr_lexer->current_input_column;
3805
44386b0e53da [project @ 2001-03-01 16:54:31 by jwe]
jwe
parents: 3802
diff changeset
2507
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2508 int c;
1031
59f5eb2d5eb3 [project @ 1995-01-15 21:11:11 by jwe]
jwe
parents: 1019
diff changeset
2509 int escape_pending = 0;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2510
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
2511 while ((c = text_yyinput ()) != EOF)
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2512 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2513 curr_lexer->current_input_column++;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2514
3105
f936c7f5074f [project @ 1997-11-19 04:36:17 by jwe]
jwe
parents: 3103
diff changeset
2515 if (c == '\\')
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2516 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2517 if (delim == '\'' || escape_pending)
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 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2520 escape_pending = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2521 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2522 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2523 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2524 if (have_continuation (false))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2525 escape_pending = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2526 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2527 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2528 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2529 escape_pending = 1;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2530 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2531 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2532 continue;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2533 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2534 else if (c == '.')
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2535 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2536 if (delim == '\'' || ! have_ellipsis_continuation (false))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2537 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2538 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2539 else if (c == '\n')
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2540 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2541 error ("unterminated string constant");
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 else if (c == delim)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2545 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2546 if (escape_pending)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2547 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2548 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2549 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2550 c = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2551 if (c == delim)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2552 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
2553 buf << static_cast<char> (c);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2554 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2555 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2556 {
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
2557 std::string s;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2558 xunput (c, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2559
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2560 if (delim == '\'')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2561 s = buf.str ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2562 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2563 s = do_string_escapes (buf.str ());
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2564
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2565 curr_lexer->quote_is_transpose = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2566 curr_lexer->convert_spaces_to_comma = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2567
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2568 yylval.tok_val = new token (s, bos_line, bos_col);
16111
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
2569 curr_lexer->token_stack.push (yylval.tok_val);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2570
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2571 if (delim == '"')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2572 gripe_matlab_incompatible ("\" used as string delimiter");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2573 else if (delim == '\'')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2574 gripe_single_quote_string ();
3400
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
2575
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2576 curr_lexer->looking_for_object_index = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2577 curr_lexer->at_beginning_of_statement = false;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2578
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2579 return delim == '"' ? DQ_STRING : SQ_STRING;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2580 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2581 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2582 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2583 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2584 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2585 buf << static_cast<char> (c);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2586 }
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2587
1031
59f5eb2d5eb3 [project @ 1995-01-15 21:11:11 by jwe]
jwe
parents: 1019
diff changeset
2588 escape_pending = 0;
973
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2589 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2590
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2591 return LEXICAL_ERROR;
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2592 }
46673c918034 [project @ 1994-12-12 17:50:07 by jwe]
jwe
parents: 972
diff changeset
2593
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2594 static bool
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2595 next_token_is_assign_op (void)
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2596 {
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2597 bool retval = false;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2598
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
2599 int c0 = text_yyinput ();
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2600
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2601 switch (c0)
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2602 {
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2603 case '=':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2604 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2605 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2606 xunput (c1, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2607 if (c1 != '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2608 retval = true;
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2609 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2610 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2611
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2612 case '+':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2613 case '-':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2614 case '*':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2615 case '/':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2616 case '\\':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2617 case '&':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2618 case '|':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2619 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2620 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2621 xunput (c1, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2622 if (c1 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2623 retval = true;
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2624 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2625 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2626
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2627 case '.':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2628 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2629 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2630 if (match_any (c1, "+-*/\\"))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2631 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2632 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2633 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2634 if (c2 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2635 retval = true;
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 xunput (c1, yytext);
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2638 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2639 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2640
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2641 case '>':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2642 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2643 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2644 if (c1 == '>')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2645 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2646 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2647 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2648 if (c2 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2649 retval = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2650 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2651 xunput (c1, yytext);
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2652 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2653 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2654
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2655 case '<':
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2656 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2657 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2658 if (c1 == '<')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2659 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2660 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2661 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2662 if (c2 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2663 retval = true;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2664 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2665 xunput (c1, yytext);
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2666 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2667 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2668
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2669 default:
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2670 break;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2671 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2672
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2673 xunput (c0, yytext);
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2674
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2675 return retval;
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2676 }
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2677
4633
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2678 static bool
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2679 next_token_is_index_op (void)
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2680 {
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
2681 int c = text_yyinput ();
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2682 xunput (c, yytext);
4633
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2683 return c == '(' || c == '{';
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2684 }
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2685
4612
d44675070f1a [project @ 2003-11-14 19:49:56 by jwe]
jwe
parents: 4608
diff changeset
2686 static int
d44675070f1a [project @ 2003-11-14 19:49:56 by jwe]
jwe
parents: 4608
diff changeset
2687 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
2688 {
4612
d44675070f1a [project @ 2003-11-14 19:49:56 by jwe]
jwe
parents: 4608
diff changeset
2689 int retval = bracket_type;
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2690
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2691 if (! curr_lexer->nesting_level.none ())
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2692 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2693 curr_lexer->nesting_level.remove ();
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2694
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2695 if (bracket_type == ']')
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2696 curr_lexer->bracketflag--;
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2697 else if (bracket_type == '}')
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2698 curr_lexer->braceflag--;
4613
d1786f2d8a3c [project @ 2003-11-14 22:46:19 by jwe]
jwe
parents: 4612
diff changeset
2699 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2700 panic_impossible ();
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2701 }
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2702
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2703 if (curr_lexer->bracketflag == 0 && curr_lexer->braceflag == 0)
4323
0990c9b77109 [project @ 2003-02-14 07:36:26 by jwe]
jwe
parents: 4318
diff changeset
2704 BEGIN (INITIAL);
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
2705
4608
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
2706 if (bracket_type == ']'
22ca4cc02525 [project @ 2003-11-14 03:55:04 by jwe]
jwe
parents: 4476
diff changeset
2707 && next_token_is_assign_op ()
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2708 && ! curr_lexer->looking_at_return_list)
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2709 {
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2710 retval = CLOSE_BRACE;
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2711 }
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2712 else if ((curr_lexer->bracketflag || curr_lexer->braceflag)
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2713 && curr_lexer->convert_spaces_to_comma
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2714 && (curr_lexer->nesting_level.is_bracket ()
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2715 || (curr_lexer->nesting_level.is_brace ()
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2716 && ! curr_lexer->looking_at_object_index.front ())))
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2717 {
4633
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2718 bool index_op = next_token_is_index_op ();
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2719
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2720 // 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
2721 //
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2722 // [x{i}{j}] or [x{i}(j)]
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2723 //
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2724 // but do if we are looking at
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2725 //
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2726 // [x{i} {j}] or [x{i} (j)]
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2727
d95dd6ae89fd [project @ 2003-11-19 18:32:50 by jwe]
jwe
parents: 4613
diff changeset
2728 if (spc_gobbled || ! (bracket_type == '}' && index_op))
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2729 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2730 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
2731
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2732 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
2733
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2734 bool sep_op = next_token_is_sep_op ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2735
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2736 if (! (postfix_un_op || bin_op || sep_op))
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 maybe_warn_separator_insert (',');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2739
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2740 xunput (',', yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2741 return retval;
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 }
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2744 }
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2745
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2746 curr_lexer->quote_is_transpose = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2747 curr_lexer->convert_spaces_to_comma = true;
3208
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2748
e8a7163701be [project @ 1998-11-03 05:12:47 by jwe]
jwe
parents: 3204
diff changeset
2749 return retval;
971
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2750 }
fe71abb43457 [project @ 1994-12-12 15:10:22 by jwe]
jwe
parents: 970
diff changeset
2751
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2752 static void
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2753 maybe_unput_comma (int spc_gobbled)
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2754 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2755 if (curr_lexer->nesting_level.is_bracket ()
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2756 || (curr_lexer->nesting_level.is_brace ()
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
2757 && ! curr_lexer->looking_at_object_index.front ()))
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2758 {
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2759 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
2760
3246
a41cc560087a [project @ 1999-06-19 06:46:20 by jwe]
jwe
parents: 3238
diff changeset
2761 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
2762
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
2763 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
2764 int c2 = text_yyinput ();
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
2765
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2766 xunput (c2, yytext);
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
2767 xunput (c1, yytext);
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
2768
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3258
diff changeset
2769 int sep_op = next_token_is_sep_op ();
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
2770
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2771 int dot_op = (c1 == '.'
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2772 && (isalpha (c2) || isspace (c2) || c2 == '_'));
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
2773
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
2774 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
2775 return;
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
2776
3985
fa0ae9105656 [project @ 2002-07-11 04:02:00 by jwe]
jwe
parents: 3974
diff changeset
2777 int index_op = (c1 == '(' || c1 == '{');
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
2778
4476
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
2779 // 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
2780 // a comma.
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
2781
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
2782 if (index_op && ! spc_gobbled)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2783 return;
4476
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
2784
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
2785 maybe_warn_separator_insert (',');
b7360f8eb035 [project @ 2003-07-30 17:17:21 by jwe]
jwe
parents: 4426
diff changeset
2786
8745
6dc61981d18b better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents: 8701
diff changeset
2787 xunput (',', yytext);
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2788 }
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2789 }
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
2790
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2791 static bool
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2792 next_token_can_follow_bin_op (void)
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2793 {
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2794 std::stack<char> buf;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2795
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2796 int c = EOF;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2797
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2798 // Skip whitespace in current statement on current line
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2799 while (true)
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2800 {
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2801 c = text_yyinput ();
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2802
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
2803 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
2804
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
2805 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
2806 break;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2807 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2808
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2809 // Restore input.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2810 while (! buf.empty ())
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2811 {
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2812 xunput (buf.top (), yytext);
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2813
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2814 buf.pop ();
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2815 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2816
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2817 return (isalnum (c) || match_any (c, "!\"'(-[_{~"));
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2818 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2819
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2820 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
2821 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
2822 {
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents: 10048
diff changeset
2823 // 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
2824 // 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
2825
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents: 10048
diff changeset
2826 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
2827 || 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
2828 || 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
2829 || 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
2830 || 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
2831 }
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents: 10048
diff changeset
2832
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents: 10048
diff changeset
2833 static bool
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2834 looks_like_command_arg (void)
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2835 {
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2836 bool retval = true;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2837
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2838 int c0 = text_yyinput ();
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2839
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2840 switch (c0)
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2841 {
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2842 // = ==
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2843 case '=':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2844 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2845 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2846
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2847 if (c1 == '=')
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 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2850
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2851 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2852 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2853 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2854
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2855 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2856 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2857 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2858 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2859
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2860 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2861 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2862 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2863
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2864 case '(':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2865 case '{':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2866 // Indexing.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2867 retval = false;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2868 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2869
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2870 case '\n':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2871 // EOL.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2872 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2873
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2874 case '\'':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2875 case '"':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2876 // Beginning of a character string.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2877 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2878
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2879 // + - ++ -- += -=
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2880 case '+':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2881 case '-':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2882 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2883 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2884
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2885 switch (c1)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2886 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2887 case '\n':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2888 // EOL.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2889 case '+':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2890 case '-':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2891 // Unary ops, spacing doesn't matter.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2892 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2893
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2894 case '\t':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2895 case ' ':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2896 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2897 if (next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2898 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2899 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2900 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2901
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2902 case '=':
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2903 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2904 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2905
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2906 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2907 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2908 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2909
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2910 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2911 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2912 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2913 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2914
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2915 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2916 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2917 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2918
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2919 case ':':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2920 case '/':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2921 case '\\':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2922 case '^':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2923 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2924 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2925
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2926 if (! match_any (c1, ",;\n") && (c1 == ' ' || c1 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2927 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2928 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2929
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2930 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2931 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2932 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2933
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2934 // .+ .- ./ .\ .^ .* .**
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2935 case '.':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2936 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2937 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2938
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2939 if (match_any (c1, "+-/\\^*"))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2940 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2941 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2942
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2943 if (c2 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2944 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2945 int c3 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2946
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2947 if (! match_any (c3, ",;\n") && (c3 == ' ' || c3 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2948 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2949 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2950
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2951 xunput (c3, yytext);
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 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
2954 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2955 retval = false;
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 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2958 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2959 else if (! match_any (c1, ",;\n")
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2960 && (! isdigit (c1) && c1 != ' ' && c1 != '\t'
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2961 && c1 != '.'))
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 // Structure reference. FIXME -- is this a complete check?
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2964
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2965 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2966 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2967
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2968 xunput (c1, yytext);
8746
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 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2971
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2972 // & && | || * **
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2973 case '&':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2974 case '|':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2975 case '*':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2976 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2977 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2978
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2979 if (c1 == c0)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2980 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2981 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2982
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2983 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2984 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2985 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2986
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2987 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2988 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2989 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
2990 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2991 retval = false;
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 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2994 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2995 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2996
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2997 // < <= > >=
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2998 case '<':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
2999 case '>':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3000 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3001 int c1 = text_yyinput ();
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 (c1 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3004 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3005 int c2 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3006
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3007 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3008 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3009 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3010
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3011 xunput (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3012 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3013 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
3014 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3015 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3016
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3017 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3018 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3019 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3020
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3021 // ~= !=
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3022 case '~':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3023 case '!':
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3024 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3025 int c1 = text_yyinput ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3026
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3027 // ~ and ! can be unary ops, so require following =.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3028 if (c1 == '=')
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3029 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3030 int c2 = 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 (c2, ",;\n") && (c2 == ' ' || c2 == '\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 (c2, yytext);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3037 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3038 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
3039 && next_token_can_follow_bin_op ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3040 retval = false;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3041
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3042 xunput (c1, yytext);
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3043 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3044 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3045
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3046 default:
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3047 break;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3048 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3049
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3050 xunput (c0, yytext);
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3051
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3052 return retval;
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3053 }
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3054
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3055 static int
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3056 handle_superclass_identifier (void)
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3057 {
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3058 eat_continuation ();
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3059
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3060 std::string pkg;
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3061 std::string meth = strip_trailing_whitespace (yytext);
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3062 size_t pos = meth.find ("@");
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3063 std::string cls = meth.substr (pos).substr (1);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3064 meth = meth.substr (0, pos - 1);
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3065
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3066 pos = cls.find (".");
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3067 if (pos != std::string::npos)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3068 {
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3069 pkg = cls.substr (pos).substr (1);
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3070 cls = cls.substr (0, pos - 1);
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3071 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3072
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3073 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
3074 || is_keyword_token (pkg));
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3075 if (kw_token)
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3076 {
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3077 error ("method, class and package names may not be keywords");
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3078 return LEXICAL_ERROR;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3079 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3080
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3081 yylval.tok_val
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3082 = new token (meth.empty () ? 0 : &(symbol_table::insert (meth)),
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3083 cls.empty () ? 0 : &(symbol_table::insert (cls)),
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3084 pkg.empty () ? 0 : &(symbol_table::insert (pkg)),
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3085 curr_lexer->input_line_number,
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3086 curr_lexer->current_input_column);
16111
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
3087 curr_lexer->token_stack.push (yylval.tok_val);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3088
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3089 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3090 curr_lexer->current_input_column += yyleng;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3091
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3092 return SUPERCLASSREF;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3093 }
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3094
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3095 static int
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3096 handle_meta_identifier (void)
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3097 {
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3098 eat_continuation ();
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3099
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3100 std::string pkg;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3101 std::string cls = strip_trailing_whitespace (yytext).substr (1);
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3102 size_t pos = cls.find (".");
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3103
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3104 if (pos != std::string::npos)
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3105 {
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3106 pkg = cls.substr (pos).substr (1);
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3107 cls = cls.substr (0, pos - 1);
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3108 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3109
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3110 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
3111 if (kw_token)
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3112 {
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3113 error ("class and package names may not be keywords");
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3114 return LEXICAL_ERROR;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3115 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3116
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3117 yylval.tok_val
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3118 = new token (cls.empty () ? 0 : &(symbol_table::insert (cls)),
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3119 pkg.empty () ? 0 : &(symbol_table::insert (pkg)),
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3120 curr_lexer->input_line_number,
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3121 curr_lexer->current_input_column);
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3122
16111
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
3123 curr_lexer->token_stack.push (yylval.tok_val);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3124
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3125 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3126 curr_lexer->current_input_column += yyleng;
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3127
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3128 return METAQUERY;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3129 }
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3130
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
3131 // 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
3132 // an identifier. Handles keywords. Return -1 if the identifier
a5a68c0afe56 [project @ 2002-12-25 21:04:33 by jwe]
jwe
parents: 4237
diff changeset
3133 // should be ignored.
767
42731861ee09 [project @ 1994-10-05 21:26:54 by jwe]
jwe
parents: 747
diff changeset
3134
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3135 static int
3974
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3136 handle_identifier (void)
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3137 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3138 bool at_bos = curr_lexer->at_beginning_of_statement;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3139
3974
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3140 std::string tok = strip_trailing_whitespace (yytext);
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3141
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3142 int c = yytext[yyleng-1];
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3143
16106
031117f4db7c use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents: 16105
diff changeset
3144 bool cont_is_spc = (eat_continuation () != lexical_feedback::NO_WHITESPACE);
3974
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3145
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3146 int spc_gobbled = (cont_is_spc || c == ' ' || c == '\t');
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3973
diff changeset
3147
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
3148 // If we are expecting a structure element, avoid recognizing
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
3149 // 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
3150 // 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
3151 // decide whether to insert a comma.
747
6182de8cb3b7 [project @ 1994-09-30 15:09:36 by jwe]
jwe
parents: 661
diff changeset
3152
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3153 if (curr_lexer->looking_at_indirect_ref)
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
3154 {
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
3155 do_comma_insert_check ();
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
3156
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
3157 maybe_unput_comma (spc_gobbled);
2819
ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe]
jwe
parents: 2804
diff changeset
3158
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3159 yylval.tok_val = new token (tok, curr_lexer->input_line_number,
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3160 curr_lexer->current_input_column);
2819
ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe]
jwe
parents: 2804
diff changeset
3161
16111
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
3162 curr_lexer->token_stack.push (yylval.tok_val);
2819
ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe]
jwe
parents: 2804
diff changeset
3163
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3164 curr_lexer->quote_is_transpose = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3165 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3166 curr_lexer->looking_for_object_index = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3167
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3168 curr_lexer->current_input_column += yyleng;
2819
ae3cce876a8e [project @ 1997-03-17 23:27:45 by jwe]
jwe
parents: 2804
diff changeset
3169
2970
b9e64477f703 [project @ 1997-05-15 18:04:21 by jwe]
jwe
parents: 2926
diff changeset
3170 return STRUCT_ELT;
1072
0cd3ba9c1f61 [project @ 1995-01-26 19:22:22 by jwe]
jwe
parents: 1060
diff changeset
3171 }
747
6182de8cb3b7 [project @ 1994-09-30 15:09:36 by jwe]
jwe
parents: 661
diff changeset
3172
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3173 curr_lexer->at_beginning_of_statement = false;
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3174
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3175 // The is_keyword_token may reset
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3176 // curr_lexer->at_beginning_of_statement. For example, if it sees
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3177 // 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
3178 // statement.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3179
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3180 int kw_token = is_keyword_token (tok);
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3181
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3182 // 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
3183 // 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
3184 // statement.
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3185
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3186 if (curr_lexer->looking_at_function_handle)
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3187 {
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3188 if (kw_token)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3189 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3190 error ("function handles may not refer to keywords");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3191
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3192 return LEXICAL_ERROR;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3193 }
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3194 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3195 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3196 yylval.tok_val = new token (tok, curr_lexer->input_line_number,
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3197 curr_lexer->current_input_column);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3198
16111
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
3199 curr_lexer->token_stack.push (yylval.tok_val);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3200
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3201 curr_lexer->current_input_column += yyleng;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3202 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3203 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3204 curr_lexer->looking_for_object_index = true;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3205
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3206 return FCN_HANDLE;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3207 }
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3208 }
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4923
diff changeset
3209
5102
b04b30d30c66 [project @ 2004-12-28 01:59:05 by jwe]
jwe
parents: 5088
diff changeset
3210 // 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
3211 // Keywords can be followed by identifiers.
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3212
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3213 if (kw_token)
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3214 {
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3215 if (kw_token >= 0)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3216 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3217 curr_lexer->current_input_column += yyleng;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3218 curr_lexer->quote_is_transpose = false;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3219 curr_lexer->convert_spaces_to_comma = true;
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3220 curr_lexer->looking_for_object_index = false;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3221 }
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3222
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3223 return kw_token;
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3224 }
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3225
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3226 // 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
3227
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
3228 int c1 = text_yyinput ();
3480
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3229
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3230 bool next_tok_is_eq = false;
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3231 if (c1 == '=')
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3232 {
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
3233 int c2 = text_yyinput ();
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
3234 xunput (c2, yytext);
3480
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3235
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3236 if (c2 != '=')
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3237 next_tok_is_eq = true;
3480
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3238 }
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe]
jwe
parents: 3428
diff changeset
3239
8447
adab48231a03 make input_line_number work again
John W. Eaton <jwe@octave.org>
parents: 8312
diff changeset
3240 xunput (c1, yytext);
1001
641c05eaed01 [project @ 1994-12-23 06:17:30 by jwe]
jwe
parents: 991
diff changeset
3241
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3242 // Kluge alert.
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3243 //
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3244 // 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
3245 // arguments.
76411ce43c05 [project @ 1997-02-26 07:52:14 by jwe]
jwe
parents: 2716
diff changeset
3246 //
15466
d174210ce1ec use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3247 // 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
3248 // 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
3249 // 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
3250 // as a variable in the current symbol table.
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3251
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3252 if (! is_variable (tok))
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3253 {
10052
5813ec5077b5 don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents: 10048
diff changeset
3254 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
3255 && looks_like_command_arg ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3256 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3257 BEGIN (COMMAND_START);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3258 }
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3259 else if (next_tok_is_eq
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3260 || curr_lexer->looking_at_decl_list
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3261 || curr_lexer->looking_at_return_list
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3262 || (curr_lexer->looking_at_parameter_list
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3263 && ! curr_lexer->looking_at_initializer_expression))
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3264 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3265 symbol_table::force_variable (tok);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3266 }
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3267 else if (curr_lexer->looking_at_matrix_or_assign_lhs)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3268 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3269 curr_lexer->pending_local_variables.insert (tok);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3270 }
2702
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3271 }
7a820bb7f406 [project @ 1997-02-19 19:22:34 by jwe]
jwe
parents: 2621
diff changeset
3272
4234
90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe]
jwe
parents: 4233
diff changeset
3273 // 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
3274 // transformation of the end keyword...
90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe]
jwe
parents: 4233
diff changeset
3275
90e44267e8cf [project @ 2002-12-21 17:15:25 by jwe]
jwe
parents: 4233
diff changeset
3276 if (tok == "end")
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
3277 tok = "__end__";
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3278
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
3279 yylval.tok_val = new token (&(symbol_table::insert (tok)),
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3280 curr_lexer->input_line_number,
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3281 curr_lexer->current_input_column);
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
3282
16111
3ec4f6488569 move token stack to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16110
diff changeset
3283 curr_lexer->token_stack.push (yylval.tok_val);
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3284
1826
b14829582cc4 [project @ 1996-02-02 03:05:07 by jwe]
jwe
parents: 1823
diff changeset
3285 // 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
3286 // (if needed).
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3287
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3288 curr_lexer->convert_spaces_to_comma = true;
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3289
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3290 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
3291 {
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3292 curr_lexer->quote_is_transpose = true;
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3293
2877
5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe]
jwe
parents: 2861
diff changeset
3294 do_comma_insert_check ();
5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe]
jwe
parents: 2861
diff changeset
3295
5c1b9e545dd1 [project @ 1997-04-24 09:07:39 by jwe]
jwe
parents: 2861
diff changeset
3296 maybe_unput_comma (spc_gobbled);
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3297 }
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3298
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3299 curr_lexer->current_input_column += yyleng;
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3300
9324
29563379fa9b don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents: 8974
diff changeset
3301 if (tok != "__end__")
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3302 curr_lexer->looking_for_object_index = true;
9324
29563379fa9b don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents: 8974
diff changeset
3303
146
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3304 return NAME;
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3305 }
edfa5a96c5f1 [project @ 1993-10-05 04:02:15 by jwe]
jwe
parents: 143
diff changeset
3306
4867
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3307 bool
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3308 is_keyword (const std::string& s)
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3309 {
14292
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3310 // 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
3311 // 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
3312 // "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
3313 // 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
3314 // 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
3315
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3316 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
3317 && ! (s == "set" || s == "get"));
4867
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3318 }
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3319
8746
5dd06f19e9be handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents: 8745
diff changeset
3320 DEFUN (iskeyword, args, ,
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3321 "-*- texinfo -*-\n\
11431
0d9640d755b1 Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents: 11367
diff changeset
3322 @deftypefn {Built-in Function} {} iskeyword ()\n\
0d9640d755b1 Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents: 11367
diff changeset
3323 @deftypefnx {Built-in Function} {} iskeyword (@var{name})\n\
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3324 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
3325 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
3326 @seealso{isvarname, exist}\n\
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3327 @end deftypefn")
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3328 {
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3329 octave_value retval;
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3330
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3331 int argc = args.length () + 1;
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3332
4867
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3333 string_vector argv = args.make_argv ("iskeyword");
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3334
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3335 if (error_state)
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3336 return retval;
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3337
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3338 if (argc == 1)
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3339 {
14292
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3340 // 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
3341 // 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
3342
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3343 string_vector lst (TOTAL_KEYWORDS);
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3344
14292
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3345 int j = 0;
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3346
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3347 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
3348 {
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3349 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
3350
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3351 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
3352 lst[j++] = tmp;
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3353 }
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3354
d1810b2ca809 iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents: 14161
diff changeset
3355 lst.resize (j);
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3356
8504
0e0bd07e6ae2 omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents: 8447
diff changeset
3357 retval = Cell (lst.sort ());
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3358 }
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3359 else if (argc == 2)
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3360 {
4867
c7f9ea142fda [project @ 2004-04-20 19:41:11 by jwe]
jwe
parents: 4765
diff changeset
3361 retval = is_keyword (argv[1]);
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3362 }
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3363 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5794
diff changeset
3364 print_usage ();
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3365
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3366 return retval;
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3367 }
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3368
12801
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3369 /*
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3370
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3371 %!assert (iskeyword ("for"))
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3372 %!assert (iskeyword ("fort"), false)
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3373 %!assert (iskeyword ("fft"), false)
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3374
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3375 */
2837514cf178 codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents: 12627
diff changeset
3376
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
3377 void
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3378 prep_lexer_for_script_file (void)
7715
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
3379 {
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
3380 BEGIN (SCRIPT_FILE_BEGIN);
5b4d278ec828 parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents: 7634
diff changeset
3381 }
4264
4e2d2516da22 [project @ 2003-01-03 05:30:34 by jwe]
jwe
parents: 4248
diff changeset
3382
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3383 void
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3384 prep_lexer_for_function_file (void)
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3385 {
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3386 BEGIN (FUNCTION_FILE_BEGIN);
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3387 }
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3388
16098
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3389 static int
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3390 octave_read (char *buf, unsigned max_size)
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3391 {
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3392 static const char * const eol = "\n";
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3393 static std::string input_buf;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3394 static const char *pos = 0;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3395 static size_t chars_left = 0;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3396 static bool eof = false;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3397
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3398 int status = 0;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3399
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3400 if (chars_left == 0)
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3401 {
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3402 pos = 0;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3403
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3404 input_buf = get_user_input (eof);
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3405
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3406 chars_left = input_buf.length ();
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3407
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3408 pos = input_buf.c_str ();
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3409 }
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3410
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3411 if (chars_left > 0)
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3412 {
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3413 size_t len = max_size > chars_left ? chars_left : max_size;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3414 assert (len > 0);
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3415
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3416 memcpy (buf, pos, len);
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3417
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3418 chars_left -= len;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3419 pos += len;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3420
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3421 // Make sure input ends with a new line character.
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3422 if (chars_left == 0 && buf[len-1] != '\n')
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3423 {
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3424 if (len < max_size)
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3425 {
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3426 // There is enough room to plug the newline character in
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3427 // the buffer.
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3428 buf[len++] = '\n';
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3429 }
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3430 else
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3431 {
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3432 // There isn't enough room to plug the newline character
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3433 // in the buffer so make sure it is returned on the next
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3434 // octave_read call.
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3435 pos = eol;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3436 chars_left = 1;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3437 }
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3438 }
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3439
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3440 status = len;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3441 }
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3442 else
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3443 {
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3444 status = YY_NULL;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3445
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3446 if (! eof)
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3447 YY_FATAL_ERROR ("octave_read () in flex scanner failed");
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3448 }
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3449
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3450 return status;
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3451 }
24b3800d30e7 move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents: 15468
diff changeset
3452
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
3453 static void
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
3454 maybe_warn_separator_insert (char sep)
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
3455 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
3456 std::string nm = curr_fcn_file_full_name;
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
3457
5794
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3458 if (nm.empty ())
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3459 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
3460 "potential auto-insertion of '%c' near line %d",
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3461 sep, curr_lexer->input_line_number);
5794
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3462 else
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3463 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
3464 "potential auto-insertion of '%c' near line %d of file %s",
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3465 sep, curr_lexer->input_line_number, nm.c_str ());
3388
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
3466 }
42cb61dd0248 [project @ 1999-12-16 04:51:43 by jwe]
jwe
parents: 3351
diff changeset
3467
3400
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
3468 static void
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
3469 gripe_single_quote_string (void)
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
3470 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
3471 std::string nm = curr_fcn_file_full_name;
3400
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
3472
5794
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3473 if (nm.empty ())
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3474 warning_with_id ("Octave:single-quote-string",
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3475 "single quote delimited string near line %d",
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3476 curr_lexer->input_line_number);
5794
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3477 else
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5783
diff changeset
3478 warning_with_id ("Octave:single-quote-string",
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3479 "single quote delimited string near line %d of file %s",
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3480 curr_lexer->input_line_number, nm.c_str ());
3400
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
3481 }
18366d37e7dd [project @ 1999-12-22 23:36:09 by jwe]
jwe
parents: 3388
diff changeset
3482
4037
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3483 static void
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3484 gripe_matlab_incompatible (const std::string& msg)
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3485 {
8974
fde2a916b2ac include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
3486 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
3487
fde2a916b2ac include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
3488 if (nm.empty ())
fde2a916b2ac include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
3489 warning_with_id ("Octave:matlab-incompatible",
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3490 "potential Matlab compatibility problem: %s",
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3491 msg.c_str ());
8974
fde2a916b2ac include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
3492 else
fde2a916b2ac include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents: 8950
diff changeset
3493 warning_with_id ("Octave:matlab-incompatible",
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3494 "potential Matlab compatibility problem: %s near line %d offile %s",
16110
7302f8a4df83 use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents: 16106
diff changeset
3495 msg.c_str (), curr_lexer->input_line_number, nm.c_str ());
4037
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3496 }
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3497
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3498 static void
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3499 maybe_gripe_matlab_incompatible_comment (char c)
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3500 {
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3501 if (c == '#')
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3502 gripe_matlab_incompatible ("# used as comment character");
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3503 }
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3504
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3505 static void
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3506 gripe_matlab_incompatible_continuation (void)
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3507 {
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3508 gripe_matlab_incompatible ("\\ used as line continuation marker");
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3509 }
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3510
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3511 static void
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3512 gripe_matlab_incompatible_operator (const std::string& op)
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3513 {
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3514 std::string t = op;
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3515 int n = t.length ();
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3516 if (t[n-1] == '\n')
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3517 t.resize (n-1);
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3518 gripe_matlab_incompatible (t + " used as operator");
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3519 }
7e0c73f17a5d [project @ 2002-08-13 02:02:26 by jwe]
jwe
parents: 4018
diff changeset
3520
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3521 static void
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3522 display_token (int tok)
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3523 {
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3524 switch (tok)
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3525 {
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3526 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
3527 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
3528 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
3529 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
3530 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
3531 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
3532 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
3533 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
3534 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
3535 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
3536 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
3537 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
3538 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
3539 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
3540 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
3541 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
3542 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
3543 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
3544 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
3545 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
3546 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
3547 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
3548 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
3549 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
3550 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
3551 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
3552 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
3553 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
3554 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
3555 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
3556 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
3557 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
3558 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
3559 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
3560 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
3561 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
3562 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
3563 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
3564 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
3565 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
3566 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
3567 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
3568 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
3569 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
3570 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
3571
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3572 case NUM:
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3573 case IMAG_NUM:
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3574 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
3575 << " [" << yylval.tok_val->number () << "]\n";
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3576 break;
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3577
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3578 case STRUCT_ELT:
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3579 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
3580
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3581 case NAME:
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3582 {
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3583 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
3584 std::cerr << "NAME";
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3585 if (sr)
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3586 std::cerr << " [" << sr->name () << "]";
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3587 std::cerr << "\n";
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3588 }
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3589 break;
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3590
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3591 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
3592
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3593 case DQ_STRING:
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3594 case SQ_STRING:
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3595 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
3596 << " [" << yylval.tok_val->text () << "]\n";
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3597 break;
1f64a7b73e98 lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents: 11464
diff changeset
3598
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3599 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
3600 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
3601 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
3602 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
3603 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
3604 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
3605 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
3606 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
3607 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
3608 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
3609 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
3610 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
3611 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
3612 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
3613 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
3614 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
3615 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
3616 case GLOBAL: std::cerr << "GLOBAL\n"; break;
14294
9e3983c8963c deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents: 14292
diff changeset
3617 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
3618 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
3619 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
3620 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
3621 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
3622 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
3623 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
3624 case FUNCTION_FILE: std::cerr << "FUNCTION_FILE\n"; break;
9476
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3625 case SUPERCLASSREF: std::cerr << "SUPERCLASSREF\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3626 case METAQUERY: std::cerr << "METAQUERY\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3627 case GET: std::cerr << "GET\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3628 case SET: std::cerr << "SET\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3629 case PROPERTIES: std::cerr << "PROPERTIES\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3630 case METHODS: std::cerr << "METHODS\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3631 case EVENTS: std::cerr << "EVENTS\n"; break;
d9b25c5b8ee5 handle classdef syntax in lexer and parser
Ryan Rusaw
parents: 9474
diff changeset
3632 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
3633 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
3634 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
3635 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
3636 default:
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3637 {
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3638 if (tok < 256)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3639 std::cerr << static_cast<char> (tok) << "\n";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3640 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
3641 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
3642 }
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3643 break;
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3644 }
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
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3647 static void
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3648 display_state (void)
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3649 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3650 std::cerr << "S: ";
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3651
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3652 switch (YY_START)
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3653 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3654 case INITIAL:
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3655 std::cerr << "INITIAL" << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3656 break;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3657
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3658 case COMMAND_START:
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3659 std::cerr << "COMMAND_START" << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3660 break;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3661
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3662 case MATRIX_START:
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3663 std::cerr << "MATRIX_START" << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3664 break;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3665
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3666 case SCRIPT_FILE_BEGIN:
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3667 std::cerr << "SCRIPT_FILE_BEGIN" << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3668 break;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3669
9474
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3670 case FUNCTION_FILE_BEGIN:
25ed2d6aacf6 Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents: 9324
diff changeset
3671 std::cerr << "FUNCTION_FILE_BEGIN" << std::endl;
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3672 break;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3673
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3674 default:
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3675 std::cerr << "UNKNOWN START STATE!" << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3676 break;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3677 }
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3678 }
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3679
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3680 static void
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3681 lexer_debug (const char *pattern, const char *text)
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3682 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3683 std::cerr << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3684
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3685 display_state ();
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3686
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3687 std::cerr << "P: " << pattern << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3688 std::cerr << "T: " << text << std::endl;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3689 }
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3690
7722
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3691 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
3692 "-*- texinfo -*-\n\
8812
7d48766c21a5 use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents: 8767
diff changeset
3693 @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
3694 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
3695 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
3696 @end deftypefn")
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3697 {
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3698 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
3699 }
c3bb0b7a4261 lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents: 7720
diff changeset
3700
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3701 DEFUN (__token_count__, , ,
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3702 "-*- texinfo -*-\n\
8812
7d48766c21a5 use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents: 8767
diff changeset
3703 @deftypefn {Built-in Function} {} __token_count__ ()\n\
4910
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3704 Number of language tokens processed since Octave startup.\n\
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3705 @end deftypefn")
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3706 {
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3707 return octave_value (Vtoken_count);
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3708 }
1242acab4246 [project @ 2004-07-12 17:14:13 by jwe]
jwe
parents: 4867
diff changeset
3709
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3710 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
3711 "-*- texinfo -*-\n\
7d48766c21a5 use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents: 8767
diff changeset
3712 @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
3713 Undocumented internal function.\n\
7d48766c21a5 use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents: 8767
diff changeset
3714 @end deftypefn")
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3715 {
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3716 octave_value retval;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3717
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3718 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
3719 "__lexer_debug_flag__");
8535
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3720
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3721 return retval;
75e6ab186761 lexer debugging functions
John W. Eaton <jwe@octave.org>
parents: 8504
diff changeset
3722 }