Mercurial > octave
annotate libinterp/parse-tree/lex.ll @ 21910:4d723ba06b4a
provide wrappers for some unistd.h functions
* liboctave/wrappers/unistd-wrappers.c,
liboctave/wrappers/unistd-wrappers.h: New files.
* liboctave/wrappers/module.mk: Update.
* gl2ps-print.cc, oct-hist.cc, oct-procbuf.cc, oct-tex-lexer.in.ll,
sysdep.cc, octave.cc, parse-tree/lex.ll, file-ops.cc, lo-sysdep.cc,
oct-env.cc, oct-syscalls.cc, cmd-edit.cc, kpse.cc:
Use wrappers instead of calling unistd.h functions directly.
author | John W. Eaton <jwe@octave.org> |
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date | Tue, 14 Jun 2016 18:10:04 -0400 |
parents | 0b5fd19477fd |
children | d92dcbcd7691 |
rev | line source |
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1994 | 1 /* |
1 | 2 |
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3 Copyright (C) 1993-2015 John W. Eaton |
1 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
10 option) any later version. | |
1 | 11 |
12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
1 | 20 |
21 */ | |
22 | |
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23 /* |
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24 We are using the pure parser interface and the reentrant lexer |
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25 interface but the Octave parser and lexer are NOT properly |
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26 reentrant because both still use many global variables. It should be |
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27 safe to create a parser object and call it while another parser |
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28 object is active (to parse a callback function while the main |
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29 interactive parser is waiting for input, for example) if you take |
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30 care to properly save and restore (typically with an unwind_protect |
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31 object) relevant global values before and after the nested call. |
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32 */ |
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33 |
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34 %top { |
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35 #if defined (HAVE_CONFIG_H) |
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36 #include "config.h" |
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37 #endif |
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38 |
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39 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC) |
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40 // This one needs to be global. |
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41 #pragma GCC diagnostic ignored "-Wunused-function" |
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42 |
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43 // Disable this warning for code that is generated by flex, including |
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44 // pattern rules. Push the current state so we can restore the warning |
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45 // state prior to functions we define at the bottom of the file. |
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46 #pragma GCC diagnostic push |
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47 #pragma GCC diagnostic ignored "-Wold-style-cast" |
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48 #endif |
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49 |
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50 // Define away the deprecated register storage class specifier to avoid |
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51 // potential warnings about it. |
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52 #if ! defined (register) |
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53 # define register |
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54 #endif |
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55 |
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56 } |
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57 |
4753 | 58 %option prefix = "octave_" |
16146 | 59 %option noyywrap |
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60 %option reentrant |
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61 %option bison-bridge |
4753 | 62 |
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63 %option noyyalloc |
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64 %option noyyrealloc |
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65 %option noyyfree |
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66 |
18234 | 67 %x COMMAND_START |
4208 | 68 %s MATRIX_START |
4240 | 69 |
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70 %x INPUT_FILE_START |
1 | 71 |
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72 %x BLOCK_COMMENT_START |
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73 %x LINE_COMMENT_START |
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74 |
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75 %x DQ_STRING_START |
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76 %x SQ_STRING_START |
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77 |
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78 %x FQ_IDENT_START |
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79 |
1 | 80 %{ |
240 | 81 |
1341 | 82 #include <cctype> |
83 #include <cstring> | |
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84 #include <stdint.h> |
1341 | 85 |
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86 #include <iostream> |
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87 #include <set> |
5765 | 88 #include <sstream> |
1823 | 89 #include <string> |
4214 | 90 #include <stack> |
1823 | 91 |
2926 | 92 #include "cmd-edit.h" |
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93 #include "lo-mappers.h" |
4153 | 94 #include "quit.h" |
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95 #include "unistd-wrappers.h" |
2926 | 96 |
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97 // These would be alphabetical, but oct-parse.h must be included before |
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98 // oct-gperf.h and oct-parse.h must be included after token.h and the tree |
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99 // class declarations. We can't include oct-parse.h in oct-gperf.h |
1497 | 100 // because it may not be protected to allow it to be included multiple |
101 // times. | |
102 | |
4264 | 103 #include "Cell.h" |
3665 | 104 #include "comment-list.h" |
2181 | 105 #include "defun.h" |
1355 | 106 #include "error.h" |
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107 #include "errwarn.h" |
1351 | 108 #include "input.h" |
1355 | 109 #include "lex.h" |
2891 | 110 #include "ov.h" |
1355 | 111 #include "parse.h" |
2987 | 112 #include "pt-all.h" |
2891 | 113 #include "symtab.h" |
114 #include "token.h" | |
115 #include "toplev.h" | |
1355 | 116 #include "utils.h" |
117 #include "variables.h" | |
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118 #include <oct-parse.h> |
2492 | 119 #include <oct-gperf.h> |
1 | 120 |
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121 // FIXME: with bison 3.x, OCTAVE_STYPE appears in the generated |
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122 // oct-parse.h file, but there is no definition for YYSTYPE, which is |
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123 // needed by the code that is generated by flex. I can't seem to find a |
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124 // way to tell flex to use OCTAVE_STYPE instead of YYSTYPE in the code |
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125 // it generates, or to tell bison to provide the definition of YYSTYPE |
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126 // in the generated oct-parse.h file. |
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127 |
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128 #if defined (OCTAVE_STYPE_IS_DECLARED) && ! defined YYSTYPE |
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129 # define YYSTYPE OCTAVE_STYPE |
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130 #endif |
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131 |
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132 #define YY_NO_UNISTD_H 1 |
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133 #define isatty octave_isatty_wrapper |
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134 |
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135 #if defined (GNULIB_NAMESPACE) |
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136 // Calls to the following functions appear in the generated output from |
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137 // flex without the namespace tag. Redefine them so we will use them |
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138 // via the gnulib namespace. |
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139 # define fprintf GNULIB_NAMESPACE::fprintf |
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140 # define fwrite GNULIB_NAMESPACE::fwrite |
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141 # define malloc GNULIB_NAMESPACE::malloc |
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142 # define realloc GNULIB_NAMESPACE::realloc |
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143 #endif |
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144 |
2716 | 145 #if ! (defined (FLEX_SCANNER) \ |
146 && defined (YY_FLEX_MAJOR_VERSION) && YY_FLEX_MAJOR_VERSION >= 2 \ | |
147 && defined (YY_FLEX_MINOR_VERSION) && YY_FLEX_MINOR_VERSION >= 5) | |
148 #error lex.l requires flex version 2.5.4 or later | |
149 #endif | |
150 | |
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151 #define YY_EXTRA_TYPE octave_base_lexer * |
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152 #define curr_lexer yyextra |
4753 | 153 |
154 // Arrange to get input via readline. | |
155 | |
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156 #if defined (YY_INPUT) |
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157 # undef YY_INPUT |
4753 | 158 #endif |
159 #define YY_INPUT(buf, result, max_size) \ | |
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160 result = curr_lexer->fill_flex_buffer (buf, max_size) |
4753 | 161 |
162 // Try to avoid crashing out completely on fatal scanner errors. | |
163 | |
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164 #if defined (YY_FATAL_ERROR) |
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165 # undef YY_FATAL_ERROR |
4753 | 166 #endif |
167 #define YY_FATAL_ERROR(msg) \ | |
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168 (yyget_extra (yyscanner))->fatal_error (msg) |
4753 | 169 |
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170 #define CMD_OR_OP(PATTERN, TOK, COMPAT) \ |
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171 \ |
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172 do \ |
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173 { \ |
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174 curr_lexer->lexer_debug (PATTERN); \ |
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175 \ |
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176 if (curr_lexer->looks_like_command_arg ()) \ |
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177 { \ |
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178 yyless (0); \ |
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179 curr_lexer->push_start_state (COMMAND_START); \ |
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180 } \ |
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181 else \ |
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182 { \ |
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183 return curr_lexer->handle_op_internal (TOK, false, COMPAT); \ |
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184 } \ |
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185 } \ |
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186 while (0) |
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187 |
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188 #define CMD_OR_COMPUTED_ASSIGN_OP(PATTERN, TOK) \ |
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189 \ |
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190 do \ |
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191 { \ |
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192 curr_lexer->lexer_debug (PATTERN); \ |
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193 \ |
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194 if (curr_lexer->previous_token_may_be_command () \ |
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195 && curr_lexer->space_follows_previous_token ()) \ |
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196 { \ |
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197 yyless (0); \ |
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198 curr_lexer->push_start_state (COMMAND_START); \ |
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199 } \ |
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200 else \ |
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201 { \ |
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202 return curr_lexer->handle_language_extension_op (PATTERN, TOK, \ |
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203 false); \ |
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204 } \ |
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205 } \ |
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206 while (0) |
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207 |
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208 #define CMD_OR_UNARY_OP(PATTERN, TOK, COMPAT) \ |
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209 \ |
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210 do \ |
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211 { \ |
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212 curr_lexer->lexer_debug (PATTERN); \ |
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213 \ |
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214 if (curr_lexer->previous_token_may_be_command ()) \ |
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215 { \ |
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216 if (curr_lexer->looks_like_command_arg ()) \ |
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217 { \ |
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218 yyless (0); \ |
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219 curr_lexer->push_start_state (COMMAND_START); \ |
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220 } \ |
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221 else \ |
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222 { \ |
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223 return curr_lexer->handle_op_internal (TOK, false, COMPAT); \ |
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224 } \ |
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225 } \ |
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226 else \ |
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227 { \ |
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228 int tok \ |
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229 = (COMPAT \ |
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230 ? curr_lexer->handle_unary_op (TOK) \ |
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231 : curr_lexer->handle_language_extension_unary_op (TOK)); \ |
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232 \ |
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233 if (tok < 0) \ |
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234 { \ |
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235 yyless (0); \ |
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236 curr_lexer->xunput (','); \ |
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237 /* Adjust for comma that was not really in the input stream. */ \ |
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238 curr_lexer->current_input_column--; \ |
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239 } \ |
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240 else \ |
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241 { \ |
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242 return tok; \ |
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243 } \ |
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244 } \ |
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245 } \ |
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246 while (0) |
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247 |
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248 // We can't rely on the trick used elsewhere of sticking ASCII 1 in |
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249 // the input buffer and recognizing it as a special case because ASCII |
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250 // 1 is a valid character for a character string. If we are at the |
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251 // end of the buffer, ask for more input. If we are at the end of the |
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252 // file, deal with it. Otherwise, just keep going with the text from |
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253 // the current buffer. |
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254 #define HANDLE_STRING_CONTINUATION \ |
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255 do \ |
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256 { \ |
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257 curr_lexer->decrement_promptflag (); \ |
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258 curr_lexer->input_line_number++; \ |
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259 curr_lexer->current_input_column = 1; \ |
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260 \ |
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261 if (curr_lexer->is_push_lexer ()) \ |
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262 { \ |
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263 if (curr_lexer->at_end_of_buffer ()) \ |
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264 return -1; \ |
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265 \ |
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266 if (curr_lexer->at_end_of_file ()) \ |
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267 return curr_lexer->handle_end_of_input (); \ |
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268 } \ |
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269 } \ |
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270 while (0) |
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271 |
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272 // When a command argument boundary is detected, push out the |
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273 // current argument being built. This one seems like a good |
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274 // candidate for a function call. |
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275 |
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276 #define COMMAND_ARG_FINISH \ |
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277 do \ |
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278 { \ |
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279 if (curr_lexer->string_text.empty ()) \ |
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280 break; \ |
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281 \ |
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282 int retval = curr_lexer->handle_token (curr_lexer->string_text, \ |
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283 SQ_STRING); \ |
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284 \ |
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285 curr_lexer->string_text = ""; \ |
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286 curr_lexer->command_arg_paren_count = 0; \ |
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287 \ |
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288 yyless (0); \ |
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289 \ |
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290 return retval; \ |
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291 } \ |
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292 while (0) |
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293 |
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294 #define HANDLE_IDENTIFIER(pattern, get_set) \ |
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295 do \ |
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296 { \ |
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297 curr_lexer->lexer_debug (pattern); \ |
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298 \ |
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299 int tok = curr_lexer->previous_token_value (); \ |
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300 \ |
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301 if (curr_lexer->whitespace_is_significant () \ |
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302 && curr_lexer->space_follows_previous_token () \ |
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303 && ! (tok == '[' || tok == '{' \ |
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304 || curr_lexer->previous_token_is_binop ())) \ |
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305 { \ |
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306 yyless (0); \ |
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307 unput (','); \ |
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308 } \ |
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309 else \ |
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310 { \ |
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311 if (! curr_lexer->looking_at_decl_list \ |
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312 && curr_lexer->previous_token_may_be_command ()) \ |
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313 { \ |
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314 yyless (0); \ |
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315 curr_lexer->push_start_state (COMMAND_START); \ |
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316 } \ |
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317 else \ |
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318 { \ |
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319 if (get_set) \ |
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320 { \ |
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321 yyless (3); \ |
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322 curr_lexer->maybe_classdef_get_set_method = false; \ |
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323 } \ |
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324 \ |
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325 int id_tok = curr_lexer->handle_identifier (); \ |
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326 \ |
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327 if (id_tok >= 0) \ |
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328 return curr_lexer->count_token_internal (id_tok); \ |
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329 } \ |
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330 } \ |
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331 } \ |
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332 while (0) |
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333 |
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334 static bool Vdisplay_tokens = false; |
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335 |
4910 | 336 static unsigned int Vtoken_count = 0; |
337 | |
8535 | 338 // Internal variable for lexer debugging state. |
339 static bool lexer_debug_flag = false; | |
340 | |
1 | 341 %} |
342 | |
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343 D [0-9] |
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344 D_ [0-9_] |
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345 S [ \t] |
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346 NL ((\n)|(\r)|(\r\n)) |
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347 Im [iIjJ] |
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348 CCHAR [#%] |
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349 IDENT ([_$a-zA-Z][_$a-zA-Z0-9]*) |
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350 FQIDENT ({IDENT}(\.{IDENT})*) |
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351 EXPON ([DdEe][+-]?{D}{D_}*) |
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352 NUMBIN (0[bB][01_]+) |
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353 NUMHEX (0[xX][0-9a-fA-F][0-9a-fA-F_]*) |
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354 NUMREAL (({D}{D_}*\.?{D_}*{EXPON}?)|(\.{D}{D_}*{EXPON}?)) |
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355 NUMBER ({NUMREAL}|{NUMHEX}|{NUMBIN}) |
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356 |
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357 ANY_EXCEPT_NL [^\r\n] |
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358 ANY_INCLUDING_NL (.|{NL}) |
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359 |
1 | 360 %% |
361 | |
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362 %{ |
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363 // Make script and function files start with an invalid token. This makes |
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364 // the parser go down a special path. |
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365 %} |
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366 |
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367 <INPUT_FILE_START>{ANY_INCLUDING_NL} { |
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368 curr_lexer->lexer_debug ("<INPUT_FILE_START>{ANY_INCLUDING_NL}"); |
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369 |
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370 curr_lexer->xunput (yytext[0]); |
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371 |
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372 // May be reset later if we see "function" or "classdef" appears |
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373 // as the first token. |
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374 curr_lexer->reading_script_file = true; |
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375 |
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376 curr_lexer->pop_start_state (); |
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377 |
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378 return curr_lexer->show_token (INPUT_FILE); |
4238 | 379 } |
380 | |
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381 <INPUT_FILE_START><<EOF>> { |
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382 curr_lexer->lexer_debug ("<INPUT_FILE_START><<EOF>>"); |
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383 |
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384 // May be reset later if we see "function" or "classdef" appears |
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385 // as the first token. |
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386 curr_lexer->reading_script_file = true; |
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387 |
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388 curr_lexer->pop_start_state (); |
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389 |
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390 return curr_lexer->show_token (INPUT_FILE); |
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391 } |
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392 |
968 | 393 %{ |
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394 // Help and other command-style functions. |
968 | 395 %} |
396 | |
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397 %{ |
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398 // Commands can be continued on a second line using the ellipsis. |
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399 // If an argument is in construction, it is completed. |
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400 %} |
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401 |
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402 <COMMAND_START>(\.\.\.){ANY_EXCEPT_NL}*{NL} { |
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403 curr_lexer->lexer_debug ("<COMMAND_START>(\\.\\.\\.){ANY_EXCEPT_NL}*{NL}"); |
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404 |
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405 COMMAND_ARG_FINISH; |
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406 |
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407 curr_lexer->input_line_number++; |
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408 curr_lexer->current_input_column = 1; |
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409 |
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410 HANDLE_STRING_CONTINUATION; |
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411 } |
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412 |
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413 %{ |
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414 // Commands normally end at the end of a line or a semicolon. |
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415 %} |
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416 |
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417 <COMMAND_START>({CCHAR}{ANY_EXCEPT_NL}*)?{NL} { |
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418 curr_lexer->lexer_debug ("<COMMAND_START>({CCHAR}{ANY_EXCEPT_NL}*)?{NL}"); |
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419 |
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420 COMMAND_ARG_FINISH; |
8535 | 421 |
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422 curr_lexer->input_line_number++; |
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423 curr_lexer->current_input_column = 1; |
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424 curr_lexer->looking_for_object_index = false; |
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425 curr_lexer->at_beginning_of_statement = true; |
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426 curr_lexer->pop_start_state (); |
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427 |
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428 return curr_lexer->handle_token ('\n'); |
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429 } |
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430 |
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431 <COMMAND_START>[\,\;] { |
18234 | 432 curr_lexer->lexer_debug ("<COMMAND_START>[\\,\\;]"); |
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433 |
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434 if (yytext[0] != ',' || curr_lexer->command_arg_paren_count == 0) |
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435 { |
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436 COMMAND_ARG_FINISH; |
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437 curr_lexer->looking_for_object_index = false; |
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438 curr_lexer->at_beginning_of_statement = true; |
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439 curr_lexer->pop_start_state (); |
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440 return curr_lexer->handle_token (yytext[0]); |
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441 } |
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442 else |
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443 curr_lexer->string_text += yytext; |
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444 |
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445 curr_lexer->current_input_column += yyleng; |
967 | 446 } |
1 | 447 |
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448 %{ |
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449 // Unbalanced parentheses serve as pseudo-quotes: they are included in |
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450 // the final argument string, but they cause parentheses and quotes to |
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451 // be slurped into that argument as well. |
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452 %} |
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453 |
18234 | 454 <COMMAND_START>[\(\[\{]* { |
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455 curr_lexer->lexer_debug ("<COMMAND_START>[\\(\\[\\{]+"); |
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456 |
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457 curr_lexer->command_arg_paren_count += yyleng; |
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458 curr_lexer->string_text += yytext; |
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459 curr_lexer->current_input_column += yyleng; |
967 | 460 } |
1 | 461 |
18234 | 462 <COMMAND_START>[\)\]\}]* { |
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463 curr_lexer->lexer_debug ("<COMMAND_START>[\\)\\]\\}]+"); |
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464 |
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465 curr_lexer->command_arg_paren_count -= yyleng; |
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466 curr_lexer->string_text += yytext; |
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467 curr_lexer->current_input_column += yyleng; |
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468 } |
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469 |
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470 %{ |
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471 // Handle quoted strings. Quoted strings that are not separated by |
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472 // whitespace from other argument text are combined with that previous |
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473 // text. For instance, |
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474 // |
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475 // command 'text1'"text2" |
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476 // |
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477 // has a single argument text1text2, not two separate arguments. |
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478 // That's why we must test to see if we are in command argument mode |
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479 // when processing the end of a string. |
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480 %} |
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481 |
4208 | 482 <COMMAND_START>[\"\'] { |
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483 curr_lexer->lexer_debug ("<COMMAND_START>[\\\"\\']"); |
8535 | 484 |
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485 if (curr_lexer->command_arg_paren_count == 0) |
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486 curr_lexer->begin_string (yytext[0] == '"' |
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487 ? DQ_STRING_START : SQ_STRING_START); |
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488 else |
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489 curr_lexer->string_text += yytext; |
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490 |
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491 curr_lexer->current_input_column += yyleng; |
975 | 492 } |
493 | |
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494 %{ |
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495 // In standard command argument processing, whitespace separates |
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496 // arguments. In the presence of unbalanced parentheses, it is |
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497 // incorporated into the argument. |
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498 %} |
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499 |
18234 | 500 <COMMAND_START>{S}* { |
501 curr_lexer->lexer_debug ("<COMMAND_START>{S}*"); | |
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502 |
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503 if (curr_lexer->command_arg_paren_count == 0) |
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504 COMMAND_ARG_FINISH; |
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505 else |
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506 curr_lexer->string_text += yytext; |
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507 |
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508 curr_lexer->current_input_column += yyleng; |
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509 } |
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510 |
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511 %{ |
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512 // Everything else is slurped into the command arguments. |
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513 %} |
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514 |
18234 | 515 <COMMAND_START>([\.]|[^#% \t\r\n\.\,\;\"\'\(\[\{\}\]\)]*) { |
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516 curr_lexer->lexer_debug ("<COMMAND_START>([\\.]|[^#% \\t\\r\\n\\.\\,\\;\\\"\\'\\(\\[\\{\\}\\]\\)]*"); |
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517 |
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518 curr_lexer->string_text += yytext; |
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519 curr_lexer->current_input_column += yyleng; |
967 | 520 } |
1 | 521 |
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522 <MATRIX_START>{S}* { |
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523 curr_lexer->lexer_debug ("<MATRIX_START>{S}*"); |
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524 |
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525 curr_lexer->mark_previous_token_trailing_space (); |
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526 } |
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527 |
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528 <MATRIX_START>{NL} { |
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529 curr_lexer->lexer_debug ("<MATRIX_START>{NL}"); |
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530 |
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531 curr_lexer->input_line_number++; |
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532 curr_lexer->current_input_column = 1; |
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533 |
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534 if (curr_lexer->nesting_level.is_paren ()) |
21102
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535 curr_lexer->warn_language_extension ("bare newline inside parentheses"); |
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536 else |
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537 { |
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538 int tok = curr_lexer->previous_token_value (); |
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539 |
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540 if (! (tok == ';' || tok == '[' || tok == '{')) |
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541 { |
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542 curr_lexer->xunput (';'); |
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543 // Adjust for semicolon that was not really in the input stream. |
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544 curr_lexer->current_input_column--; |
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545 } |
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546 } |
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547 } |
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548 |
968 | 549 %{ |
1 | 550 // For this and the next two rules, we're looking at ']', and we |
15466
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|
551 // need to know if the next token is '=' or '=='. |
1 | 552 // |
553 // It would have been so much easier if the delimiters were simply | |
554 // different for the expression on the left hand side of the equals | |
555 // operator. | |
971 | 556 // |
557 // It's also a pain in the ass to decide whether to insert a comma | |
558 // after seeing a ']' character... | |
7723
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559 |
17861
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560 // FIXME: we need to handle block comments here. |
968 | 561 %} |
562 | |
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563 <MATRIX_START>\] { |
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564 curr_lexer->lexer_debug ("<MATRIX_START>\\]"); |
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566 curr_lexer->looking_at_object_index.pop_front (); |
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567 |
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568 curr_lexer->looking_for_object_index = true; |
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569 curr_lexer->at_beginning_of_statement = false; |
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570 |
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571 curr_lexer->handle_close_bracket (']'); |
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572 |
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573 return curr_lexer->count_token (']'); |
4608 | 574 } |
575 | |
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576 %{ |
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577 // FIXME: we need to handle block comments here. |
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578 %} |
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579 |
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580 <MATRIX_START>\} { |
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581 curr_lexer->lexer_debug ("<MATRIX_START>\\}*"); |
8535 | 582 |
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583 curr_lexer->looking_at_object_index.pop_front (); |
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584 |
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585 curr_lexer->looking_for_object_index = true; |
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586 curr_lexer->at_beginning_of_statement = false; |
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587 |
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588 curr_lexer->handle_close_bracket ('}'); |
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589 |
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590 return curr_lexer->count_token ('}'); |
967 | 591 } |
1 | 592 |
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593 \[ { |
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594 curr_lexer->lexer_debug ("\\["); |
8535 | 595 |
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596 bool unput_comma = false; |
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597 |
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598 if (curr_lexer->whitespace_is_significant () |
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599 && curr_lexer->space_follows_previous_token ()) |
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600 { |
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601 int tok = curr_lexer->previous_token_value (); |
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602 |
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603 if (! (tok == '[' || tok == '{' |
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604 || curr_lexer->previous_token_is_binop ())) |
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605 unput_comma = true; |
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606 } |
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607 |
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608 if (unput_comma) |
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609 { |
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610 yyless (0); |
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611 curr_lexer->xunput (','); |
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612 // Adjust for comma that was not really in the input stream. |
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613 curr_lexer->current_input_column--; |
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614 } |
5615 | 615 else |
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616 { |
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617 curr_lexer->nesting_level.bracket (); |
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618 |
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619 curr_lexer->looking_at_object_index.push_front (false); |
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620 |
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621 curr_lexer->current_input_column += yyleng; |
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622 curr_lexer->looking_for_object_index = false; |
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623 curr_lexer->at_beginning_of_statement = false; |
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624 |
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625 if (curr_lexer->defining_func |
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626 && ! curr_lexer->parsed_function_name.top ()) |
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627 curr_lexer->looking_at_return_list = true; |
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628 else |
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629 curr_lexer->looking_at_matrix_or_assign_lhs = true; |
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630 |
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631 curr_lexer->decrement_promptflag (); |
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632 |
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633 curr_lexer->bracketflag++; |
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634 |
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635 curr_lexer->push_start_state (MATRIX_START); |
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636 |
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637 return curr_lexer->count_token ('['); |
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638 } |
967 | 639 } |
1 | 640 |
968 | 641 \] { |
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642 curr_lexer->lexer_debug ("\\]"); |
8535 | 643 |
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644 curr_lexer->nesting_level.remove (); |
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645 |
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646 curr_lexer->looking_at_object_index.pop_front (); |
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647 |
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648 curr_lexer->looking_for_object_index = true; |
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649 curr_lexer->at_beginning_of_statement = false; |
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650 |
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651 return curr_lexer->handle_token (']'); |
968 | 652 } |
653 | |
654 %{ | |
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655 // Gobble comments. |
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656 %} |
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657 |
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658 %{ |
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659 // Start of a block comment. If the comment marker appears immediately |
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660 // after a block of full-line comments, finish the full line comment |
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661 // block. |
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662 %} |
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663 |
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664 ^{S}*{CCHAR}\{{S}*{NL} { |
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665 curr_lexer->lexer_debug ("^{S}*{CCHAR}\\{{S}*{NL}"); |
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666 |
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667 yyless (0); |
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668 |
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669 if (curr_lexer->start_state () == LINE_COMMENT_START) |
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670 { |
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671 if (! curr_lexer->comment_text.empty ()) |
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672 curr_lexer->finish_comment (octave_comment_elt::full_line); |
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673 |
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674 curr_lexer->pop_start_state (); |
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675 } |
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676 |
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677 curr_lexer->decrement_promptflag (); |
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678 |
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679 curr_lexer->push_start_state (BLOCK_COMMENT_START); |
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680 |
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681 } |
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682 |
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683 <BLOCK_COMMENT_START>^{S}*{CCHAR}\{{S}*{NL} { |
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684 curr_lexer->lexer_debug ("<BLOCK_COMMENT_START>^{S}*{CCHAR}\\{{S}*{NL}"); |
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685 |
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686 curr_lexer->input_line_number++; |
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687 curr_lexer->current_input_column = 1; |
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688 |
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689 if (curr_lexer->block_comment_nesting_level) |
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690 curr_lexer->comment_text = "\n"; |
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691 |
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692 curr_lexer->block_comment_nesting_level++; |
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693 } |
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694 |
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|
695 %{ |
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|
696 // End of a block comment. If this block comment is nested inside |
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|
697 // another, wait for the outermost block comment block to be closed |
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|
698 // before storing the comment. |
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|
699 %} |
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|
700 |
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John W. Eaton <jwe@octave.org>
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diff
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|
701 <BLOCK_COMMENT_START>^{S}*{CCHAR}\}{S}*{NL} { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
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diff
changeset
|
702 curr_lexer->lexer_debug ("<BLOCK_COMMENT_START>^{S}*{CCHAR}\\}{S}*{NL}"); |
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|
703 |
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John W. Eaton <jwe@octave.org>
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|
704 curr_lexer->input_line_number++; |
e19b1632d7c1
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|
705 curr_lexer->current_input_column = 1; |
e19b1632d7c1
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diff
changeset
|
706 |
e19b1632d7c1
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diff
changeset
|
707 if (curr_lexer->block_comment_nesting_level > 1) |
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parents:
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diff
changeset
|
708 curr_lexer->comment_text = "\n"; |
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parents:
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diff
changeset
|
709 else |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
710 curr_lexer->finish_comment (octave_comment_elt::block); |
16228
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diff
changeset
|
711 |
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revamp most comment handling
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parents:
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diff
changeset
|
712 curr_lexer->block_comment_nesting_level--; |
16364
1e064963c90a
properly recognize nested block comments
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parents:
16363
diff
changeset
|
713 |
1e064963c90a
properly recognize nested block comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
714 if (curr_lexer->block_comment_nesting_level == 0) |
16365
8097a052ec57
use secondary prompt when reading block comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
715 { |
8097a052ec57
use secondary prompt when reading block comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
716 curr_lexer->increment_promptflag (); |
8097a052ec57
use secondary prompt when reading block comments
John W. Eaton <jwe@octave.org>
parents:
16364
diff
changeset
|
717 |
8097a052ec57
use secondary prompt when reading block comments
John W. Eaton <jwe@octave.org>
parents:
16364
diff
changeset
|
718 curr_lexer->pop_start_state (); |
8097a052ec57
use secondary prompt when reading block comments
John W. Eaton <jwe@octave.org>
parents:
16364
diff
changeset
|
719 } |
16228
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diff
changeset
|
720 } |
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parents:
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diff
changeset
|
721 |
e19b1632d7c1
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parents:
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diff
changeset
|
722 %{ |
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parents:
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diff
changeset
|
723 // Body of a block comment. |
e19b1632d7c1
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parents:
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diff
changeset
|
724 %} |
e19b1632d7c1
revamp most comment handling
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parents:
16224
diff
changeset
|
725 |
18311
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
726 <BLOCK_COMMENT_START>{ANY_EXCEPT_NL}*{NL} { |
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
727 curr_lexer->lexer_debug ("<BLOCK_COMMENT_START>{ANY_EXCEPT_NL}*{NL}"); |
16228
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revamp most comment handling
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parents:
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diff
changeset
|
728 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
729 curr_lexer->input_line_number++; |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
730 curr_lexer->current_input_column = 1; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
731 curr_lexer->comment_text += yytext; |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
732 } |
e19b1632d7c1
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parents:
16224
diff
changeset
|
733 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
734 %{ |
e19b1632d7c1
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parents:
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diff
changeset
|
735 // Full-line or end-of-line comment. |
e19b1632d7c1
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parents:
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diff
changeset
|
736 %} |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
737 |
18311
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
738 {S}*{CCHAR}{ANY_EXCEPT_NL}*{NL} { |
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
739 curr_lexer->lexer_debug ("{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL}"); |
16228
e19b1632d7c1
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parents:
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diff
changeset
|
740 |
e19b1632d7c1
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parents:
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diff
changeset
|
741 curr_lexer->push_start_state (LINE_COMMENT_START); |
e19b1632d7c1
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parents:
16224
diff
changeset
|
742 yyless (0); |
e19b1632d7c1
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parents:
16224
diff
changeset
|
743 } |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
744 |
18311
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
745 <LINE_COMMENT_START>{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL} { |
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
746 curr_lexer->lexer_debug ("<LINE_COMMENT_START>{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL}"); |
16228
e19b1632d7c1
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parents:
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diff
changeset
|
747 |
e19b1632d7c1
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parents:
16224
diff
changeset
|
748 bool full_line_comment = curr_lexer->current_input_column == 1; |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
749 curr_lexer->input_line_number++; |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
750 curr_lexer->current_input_column = 1; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
751 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
752 bool have_space = false; |
16228
e19b1632d7c1
revamp most comment handling
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parents:
16224
diff
changeset
|
753 size_t len = yyleng; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
754 size_t i = 0; |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
755 while (i < len) |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
756 { |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
757 char c = yytext[i]; |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
758 if (c == ' ' || c == '\t') |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
759 { |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
760 have_space = true; |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
761 i++; |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
762 } |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
763 else |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
764 break; |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
765 } |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
766 |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
767 size_t num_comment_chars = 0; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
768 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
769 while (i < len) |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
770 { |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
771 char c = yytext[i]; |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
772 if (c == '#' || c == '%') |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
773 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
774 num_comment_chars++; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
775 i++; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
776 } |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
777 else |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
778 break; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
779 } |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
780 |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
781 curr_lexer->comment_text += &yytext[i]; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
782 |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
783 if (full_line_comment) |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
784 { |
17882
cf3f828f401c
only allow [%#]{ as block comment start (bug #40513)
John W. Eaton <jwe@octave.org>
parents:
17861
diff
changeset
|
785 if (num_comment_chars == 1 && yytext[i++] == '{') |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
786 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
787 bool looks_like_block_comment = true; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
788 |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
789 while (i < len) |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
790 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
791 char c = yytext[i++]; |
18135
7af19113ec43
Fix block comments for files with CRLF line endings (bug #40894)
John Donoghue <john.donoghue@ieee.org>
parents:
17882
diff
changeset
|
792 if (! (c == ' ' || c == '\t' || c == '\n' || c == '\r')) |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
793 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
794 looks_like_block_comment = false; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
795 break; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
796 } |
19593
446c46af4b42
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
18974
diff
changeset
|
797 } |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
798 |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
799 if (looks_like_block_comment) |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
800 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
801 yyless (0); |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
802 |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
803 curr_lexer->finish_comment (octave_comment_elt::full_line); |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
804 |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
805 curr_lexer->pop_start_state (); |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
806 } |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
807 } |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
808 } |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
809 else |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
810 { |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
811 if (have_space) |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
812 curr_lexer->mark_previous_token_trailing_space (); |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
813 |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
814 curr_lexer->finish_comment (octave_comment_elt::end_of_line); |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
815 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
816 curr_lexer->pop_start_state (); |
16337
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
John W. Eaton <jwe@octave.org>
parents:
16334
diff
changeset
|
817 |
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
John W. Eaton <jwe@octave.org>
parents:
16334
diff
changeset
|
818 curr_lexer->xunput ('\n'); |
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
John W. Eaton <jwe@octave.org>
parents:
16334
diff
changeset
|
819 curr_lexer->input_line_number--; |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
820 } |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
821 } |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
822 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
823 %{ |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
824 // End of a block of full-line comments. |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
825 %} |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
826 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
827 <LINE_COMMENT_START>{ANY_INCLUDING_NL} { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
828 curr_lexer->lexer_debug ("<LINE_COMMENT_START>{ANY_INCLUDING_NL}"); |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
829 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
830 curr_lexer->xunput (yytext[0]); |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
831 |
19593
446c46af4b42
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
18974
diff
changeset
|
832 curr_lexer->finish_comment (octave_comment_elt::full_line); |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
833 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
834 curr_lexer->pop_start_state (); |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
835 } |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
836 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
837 %{ |
17722
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
838 // End of a block of full-line comments. |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
839 %} |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
840 |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
841 <LINE_COMMENT_START><<EOF>> { |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
842 curr_lexer->lexer_debug ("<LINE_COMMENT_START><<EOF>>"); |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
843 |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
844 curr_lexer->finish_comment (octave_comment_elt::full_line); |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
845 |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
846 curr_lexer->pop_start_state (); |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
847 } |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
848 |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
849 %{ |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
850 // Double-quoted character strings. |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
851 %} |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
852 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
853 <DQ_STRING_START>\"\" { |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
854 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\"\\\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
855 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
856 curr_lexer->current_input_column += yyleng; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
857 curr_lexer->string_text += '"'; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
858 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
859 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
860 <DQ_STRING_START>\" { |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
861 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\""); |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
862 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
863 curr_lexer->current_input_column++; |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
864 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
865 curr_lexer->pop_start_state (); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
866 |
18224
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
867 if (curr_lexer->start_state() != COMMAND_START) |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
868 { |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
869 curr_lexer->looking_for_object_index = true; |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
870 curr_lexer->at_beginning_of_statement = false; |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
871 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
872 curr_lexer->push_token (new token (DQ_STRING, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
873 curr_lexer->string_text, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
874 curr_lexer->string_line, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
875 curr_lexer->string_column)); |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
876 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
877 curr_lexer->string_text = ""; |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
878 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
879 return curr_lexer->count_token_internal (DQ_STRING); |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
880 } |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
881 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
882 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
883 <DQ_STRING_START>\\[0-7]{1,3} { |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
884 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\[0-7]{1,3}"); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
885 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
886 curr_lexer->current_input_column += yyleng; |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
887 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
888 int result; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
889 sscanf (yytext+1, "%o", &result); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
890 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
891 if (result > 0xff) |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
892 { |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
893 token *tok |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
894 = new token (LEXICAL_ERROR, |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
895 "invalid octal escape sequence in character string", |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
896 curr_lexer->input_line_number, |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
897 curr_lexer->current_input_column); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
898 |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
899 curr_lexer->push_token (tok); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
900 |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
901 return curr_lexer->count_token_internal (LEXICAL_ERROR); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
902 } |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
903 else |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
904 curr_lexer->string_text += static_cast<unsigned char> (result); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
905 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
906 |
17244
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
907 <DQ_STRING_START>\\x[0-9a-fA-F]+ { |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
908 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\x[0-9a-fA-F]+"); |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
909 |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
910 curr_lexer->current_input_column += yyleng; |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
911 |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
912 int result; |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
913 sscanf (yytext+2, "%x", &result); |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
914 |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
915 // Truncate the value silently instead of checking the range like |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
916 // we do for octal above. This is to match C/C++ where any number |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
917 // of digits is allowed but the value is implementation-defined if |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
918 // it exceeds the range of the character type. |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
919 curr_lexer->string_text += static_cast<unsigned char> (result); |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
920 } |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
921 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
922 <DQ_STRING_START>"\\a" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
923 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\a\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
924 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
925 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
926 curr_lexer->string_text += '\a'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
927 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
928 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
929 <DQ_STRING_START>"\\b" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
930 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\b\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
931 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
932 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
933 curr_lexer->string_text += '\b'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
934 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
935 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
936 <DQ_STRING_START>"\\f" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
937 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\f\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
938 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
939 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
940 curr_lexer->string_text += '\f'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
941 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
942 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
943 <DQ_STRING_START>"\\n" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
944 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\n\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
945 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
946 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
947 curr_lexer->string_text += '\n'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
948 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
949 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
950 <DQ_STRING_START>"\\r" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
951 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\r\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
952 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
953 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
954 curr_lexer->string_text += '\r'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
955 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
956 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
957 <DQ_STRING_START>"\\t" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
958 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\t\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
959 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
960 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
961 curr_lexer->string_text += '\t'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
962 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
963 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
964 <DQ_STRING_START>"\\v" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
965 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\v\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
966 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
967 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
968 curr_lexer->string_text += '\v'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
969 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
970 |
18428
4d2e15abe5e7
Disallow comments after continuation in double-quoted strings (bug #41415).
Stefan Mahr <dac922@gmx.de>
parents:
18319
diff
changeset
|
971 <DQ_STRING_START>(\.\.\.){S}*{NL} { |
4d2e15abe5e7
Disallow comments after continuation in double-quoted strings (bug #41415).
Stefan Mahr <dac922@gmx.de>
parents:
18319
diff
changeset
|
972 curr_lexer->lexer_debug ("<DQ_STRING_START>(\\.\\.\\.){S}*{NL}"); |
16914
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
973 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
974 static const char *msg = "'...' continuations in double-quoted character strings are obsolete and will not be allowed in a future version of Octave; please use '\\' instead"; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
975 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
976 std::string nm = curr_lexer->fcn_file_full_name; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
977 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
978 if (nm.empty ()) |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
979 warning_with_id ("Octave:deprecated-syntax", "%s", msg); |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
980 else |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
981 warning_with_id ("Octave:deprecated-syntax", |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
982 "%s; near line %d of file '%s'", msg, |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
983 curr_lexer->input_line_number, nm.c_str ()); |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
984 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
985 HANDLE_STRING_CONTINUATION; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
986 } |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
987 |
18428
4d2e15abe5e7
Disallow comments after continuation in double-quoted strings (bug #41415).
Stefan Mahr <dac922@gmx.de>
parents:
18319
diff
changeset
|
988 <DQ_STRING_START>\\{S}+{NL} { |
4d2e15abe5e7
Disallow comments after continuation in double-quoted strings (bug #41415).
Stefan Mahr <dac922@gmx.de>
parents:
18319
diff
changeset
|
989 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\{S}+{NL}"); |
16914
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
990 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
991 static const char *msg = "white space and comments after continuation markers in double-quoted character strings are obsolete and will not be allowed in a future version of Octave"; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
992 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
993 std::string nm = curr_lexer->fcn_file_full_name; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
994 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
995 if (nm.empty ()) |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
996 warning_with_id ("Octave:deprecated-syntax", "%s", msg); |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
997 else |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
998 warning_with_id ("Octave:deprecated-syntax", |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
999 "%s; near line %d of file '%s'", msg, |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1000 curr_lexer->input_line_number, nm.c_str ()); |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1001 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1002 HANDLE_STRING_CONTINUATION; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1003 } |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1004 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1005 <DQ_STRING_START>\\{NL} { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1006 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\{NL}"); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1007 |
16914
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1008 HANDLE_STRING_CONTINUATION; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1009 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1010 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1011 <DQ_STRING_START>\\. { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1012 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\."); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1013 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1014 curr_lexer->current_input_column += yyleng; |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1015 curr_lexer->string_text += yytext[1]; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1016 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1017 |
16914
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1018 <DQ_STRING_START>\. { |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1019 curr_lexer->lexer_debug ("<DQ_STRING_START>\\."); |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1020 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1021 curr_lexer->current_input_column++; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1022 curr_lexer->string_text += yytext[0]; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1023 } |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1024 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1025 <DQ_STRING_START>[^\.\\\r\n\"]+ { |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
1026 curr_lexer->lexer_debug ("<DQ_STRING_START>[^\\.\\\\\\r\\n\\\"]+"); |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1027 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1028 curr_lexer->current_input_column += yyleng; |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1029 curr_lexer->string_text += yytext; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1030 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1031 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1032 <DQ_STRING_START>{NL} { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1033 curr_lexer->lexer_debug ("<DQ_STRING_START>{NL}"); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1034 |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1035 token *tok = new token (LEXICAL_ERROR, |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1036 "unterminated character string constant", |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1037 curr_lexer->input_line_number, |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1038 curr_lexer->current_input_column); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1039 |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1040 curr_lexer->push_token (tok); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1041 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1042 curr_lexer->input_line_number++; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1043 curr_lexer->current_input_column = 1; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1044 |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1045 return curr_lexer->count_token_internal (LEXICAL_ERROR); |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1046 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1047 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1048 %{ |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1049 // Single-quoted character strings. |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
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|
1050 %} |
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|
1051 |
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|
1052 <SQ_STRING_START>\'\' { |
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|
1053 curr_lexer->lexer_debug ("<SQ_STRING_START>\\'\\'"); |
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|
1054 |
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|
1055 curr_lexer->current_input_column += yyleng; |
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|
1056 curr_lexer->string_text += '\''; |
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|
1057 } |
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|
1058 |
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|
1059 <SQ_STRING_START>\' { |
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|
1060 curr_lexer->lexer_debug ("<SQ_STRING_START>\\'"); |
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|
1061 |
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|
1062 curr_lexer->current_input_column++; |
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|
1063 |
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|
1064 curr_lexer->pop_start_state (); |
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|
1065 |
18224
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diff
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|
1066 if (curr_lexer->start_state() != COMMAND_START) |
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|
1067 { |
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|
1068 curr_lexer->looking_for_object_index = true; |
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diff
changeset
|
1069 curr_lexer->at_beginning_of_statement = false; |
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diff
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|
1070 |
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|
1071 curr_lexer->push_token (new token (SQ_STRING, |
615fdd2238c1
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parents:
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|
1072 curr_lexer->string_text, |
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diff
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|
1073 curr_lexer->string_line, |
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diff
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|
1074 curr_lexer->string_column)); |
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|
1075 |
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changeset
|
1076 curr_lexer->string_text = ""; |
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|
1077 |
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|
1078 return curr_lexer->count_token_internal (SQ_STRING); |
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|
1079 } |
16904
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|
1080 } |
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|
1081 |
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|
1082 <SQ_STRING_START>[^\'\n\r]+ { |
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|
1083 curr_lexer->lexer_debug ("<SQ_STRING_START>[^\\'\\n\\r]+"); |
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|
1084 |
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|
1085 curr_lexer->current_input_column += yyleng; |
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|
1086 curr_lexer->string_text += yytext; |
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|
1087 } |
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|
1088 |
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|
1089 <SQ_STRING_START>{NL} { |
16903
f21194531877
improve character string handling in the lexer
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|
1090 curr_lexer->lexer_debug ("<SQ_STRING_START>{NL}"); |
f21194531877
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|
1091 |
21064
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|
1092 token *tok = new token (LEXICAL_ERROR, |
a9f2c2d72892
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|
1093 "unterminated character string constant", |
a9f2c2d72892
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|
1094 curr_lexer->input_line_number, |
a9f2c2d72892
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|
1095 curr_lexer->current_input_column); |
a9f2c2d72892
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parents:
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diff
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|
1096 |
a9f2c2d72892
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|
1097 curr_lexer->push_token (tok); |
a9f2c2d72892
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|
1098 |
16903
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|
1099 curr_lexer->input_line_number++; |
f21194531877
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|
1100 curr_lexer->current_input_column = 1; |
f21194531877
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parents:
16898
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|
1101 |
21064
a9f2c2d72892
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|
1102 return curr_lexer->count_token_internal (LEXICAL_ERROR); |
16898
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|
1103 } |
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|
1104 |
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|
1105 %{ |
18520
932aca9a7c57
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Michael Goffioul <michael.goffioul@gmail.com>
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|
1106 // Fully-qualified identifiers (used for classdef). |
932aca9a7c57
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|
1107 %} |
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|
1108 |
932aca9a7c57
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Michael Goffioul <michael.goffioul@gmail.com>
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|
1109 <FQ_IDENT_START>{FQIDENT} { |
932aca9a7c57
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Michael Goffioul <michael.goffioul@gmail.com>
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|
1110 curr_lexer->lexer_debug ("<FQ_IDENT_START>{FQIDENT}"); |
932aca9a7c57
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|
1111 curr_lexer->pop_start_state (); |
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|
1112 |
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|
1113 int id_tok = curr_lexer->handle_fq_identifier (); |
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|
1114 |
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|
1115 if (id_tok >= 0) |
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18497
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|
1116 { |
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Michael Goffioul <michael.goffioul@gmail.com>
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|
1117 curr_lexer->looking_for_object_index = true; |
932aca9a7c57
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|
1118 |
932aca9a7c57
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|
1119 return curr_lexer->count_token_internal (id_tok); |
932aca9a7c57
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|
1120 } |
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|
1121 } |
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|
1122 |
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|
1123 <FQ_IDENT_START>{S}+ { |
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Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
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diff
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|
1124 curr_lexer->current_input_column += yyleng; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
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diff
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|
1125 |
932aca9a7c57
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Michael Goffioul <michael.goffioul@gmail.com>
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18497
diff
changeset
|
1126 curr_lexer->mark_previous_token_trailing_space (); |
932aca9a7c57
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
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|
1127 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
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diff
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|
1128 |
932aca9a7c57
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Michael Goffioul <michael.goffioul@gmail.com>
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changeset
|
1129 <FQ_IDENT_START>. { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
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diff
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|
1130 yyless (0); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
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|
1131 curr_lexer->pop_start_state (); |
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18497
diff
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|
1132 } |
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|
1133 |
932aca9a7c57
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diff
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|
1134 %{ |
968 | 1135 // Imaginary numbers. |
1136 %} | |
1137 | |
1138 {NUMBER}{Im} { | |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1139 curr_lexer->lexer_debug ("{NUMBER}{Im}"); |
8535 | 1140 |
16361
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
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diff
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|
1141 if (curr_lexer->previous_token_may_be_command () |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
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|
1142 && curr_lexer->space_follows_previous_token ()) |
16257
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|
1143 { |
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diff
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|
1144 yyless (0); |
16361
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and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
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diff
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|
1145 curr_lexer->push_start_state (COMMAND_START); |
16257
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diff
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|
1146 } |
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diff
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|
1147 else |
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diff
changeset
|
1148 { |
16361
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John W. Eaton <jwe@octave.org>
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diff
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|
1149 int tok = curr_lexer->previous_token_value (); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
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|
1150 |
e1dcd834751f
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changeset
|
1151 if (curr_lexer->whitespace_is_significant () |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1152 && curr_lexer->space_follows_previous_token () |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
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|
1153 && ! (tok == '[' || tok == '{' |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1154 || curr_lexer->previous_token_is_binop ())) |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
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diff
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|
1155 { |
e1dcd834751f
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|
1156 yyless (0); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1157 unput (','); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
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|
1158 } |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
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|
1159 else |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
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|
1160 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
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changeset
|
1161 curr_lexer->handle_number (); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
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diff
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|
1162 return curr_lexer->count_token_internal (IMAG_NUM); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
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|
1163 } |
16257
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|
1164 } |
968 | 1165 } |
1166 | |
1167 %{ | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
1168 // Real numbers. Don't grab the '.' part of a dot operator as part of |
968 | 1169 // the constant. |
1170 %} | |
1171 | |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
1172 {D}{D_}*/\.[\*/\\^\'] | |
968 | 1173 {NUMBER} { |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
1174 curr_lexer->lexer_debug ("{D}{D_}*/\\.[\\*/\\\\^\\']|{NUMBER}"); |
16257
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|
1175 |
16361
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|
1176 if (curr_lexer->previous_token_may_be_command () |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1177 && curr_lexer->space_follows_previous_token ()) |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1178 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1179 yyless (0); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1180 curr_lexer->push_start_state (COMMAND_START); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1181 } |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1182 else |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1183 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1184 int tok = curr_lexer->previous_token_value (); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1185 |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1186 if (curr_lexer->whitespace_is_significant () |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1187 && curr_lexer->space_follows_previous_token () |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1188 && ! (tok == '[' || tok == '{' |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1189 || curr_lexer->previous_token_is_binop ())) |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1190 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1191 yyless (0); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1192 unput (','); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1193 } |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1194 else |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1195 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1196 curr_lexer->handle_number (); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1197 return curr_lexer->count_token_internal (NUM); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1198 } |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1199 } |
968 | 1200 } |
1201 | |
1202 %{ | |
1203 // Eat whitespace. Whitespace inside matrix constants is handled by | |
4208 | 1204 // the <MATRIX_START> start state code above. |
968 | 1205 %} |
1206 | |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
1207 {S}+ { |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1208 curr_lexer->current_input_column += yyleng; |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
1209 |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
1210 curr_lexer->mark_previous_token_trailing_space (); |
967 | 1211 } |
1212 | |
968 | 1213 %{ |
17247
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1214 // Continuation lines. Allow arbitrary text after continuations. |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1215 %} |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1216 |
18311
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
1217 \.\.\.{ANY_EXCEPT_NL}*{NL} { |
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
1218 curr_lexer->lexer_debug ("\\.\\.\\.{ANY_EXCEPT_NL}*{NL}"); |
17247
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1219 |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1220 curr_lexer->handle_continuation (); |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1221 } |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1222 |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1223 %{ |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1224 // Deprecated C preprocessor style continuation markers. |
968 | 1225 %} |
1226 | |
17246
8be8a65d3ca8
Ignore anything after the continuation marker '...' (bug #38653)
Stefan Mahr <dac922@gmx.de>
parents:
17244
diff
changeset
|
1227 \\{S}*{NL} | |
18311
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
1228 \\{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL} { |
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
1229 curr_lexer->lexer_debug ("\\\\{S}*{NL}|\\\\{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL}"); |
17247
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1230 |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1231 static const char *msg = "using continuation marker \\ outside of double quoted strings is deprecated and will be removed in a future version of Octave"; |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1232 |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1233 std::string nm = curr_lexer->fcn_file_full_name; |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1234 |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1235 if (nm.empty ()) |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1236 warning_with_id ("Octave:deprecated-syntax", "%s", msg); |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1237 else |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1238 warning_with_id ("Octave:deprecated-syntax", |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1239 "%s; near line %d of file '%s'", msg, |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1240 curr_lexer->input_line_number, nm.c_str ()); |
17343
6470a113eae2
correctly handle deprecated \ continuation markers
John W. Eaton <jwe@octave.org>
parents:
17247
diff
changeset
|
1241 |
6470a113eae2
correctly handle deprecated \ continuation markers
John W. Eaton <jwe@octave.org>
parents:
17247
diff
changeset
|
1242 curr_lexer->handle_continuation (); |
967 | 1243 } |
1 | 1244 |
968 | 1245 %{ |
1246 // End of file. | |
1247 %} | |
1248 | |
967 | 1249 <<EOF>> { |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1250 return curr_lexer->handle_end_of_input (); |
967 | 1251 } |
1 | 1252 |
968 | 1253 %{ |
16259
0b5ab09dfce4
2/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16257
diff
changeset
|
1254 // Identifiers. |
18394
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1255 |
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1256 // Don't allow get and set to be recognized as keywords if they are |
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1257 // followed by "(". |
968 | 1258 %} |
1259 | |
21705
764e586dca4b
Avoid use of REJECT in parser (bug #45947).
Rik <rik@octave.org>
parents:
21635
diff
changeset
|
1260 (set|get){S}*\( { |
21722
fb5dd9f7d697
* oct-parse.in.yy: Correct pattern string in call to HANDLE_IDENTIFIER.
John W. Eaton <jwe@octave.org>
parents:
21705
diff
changeset
|
1261 HANDLE_IDENTIFIER ("(set|get){S}*\\(", true); |
18394
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1262 } |
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1263 |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1264 {IDENT} { |
18394
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1265 HANDLE_IDENTIFIER ("{IDENT}", false); |
967 | 1266 } |
1 | 1267 |
968 | 1268 %{ |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1269 // Superclass method identifiers. |
9476 | 1270 %} |
1271 | |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1272 {IDENT}@{FQIDENT} { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1273 curr_lexer->lexer_debug ("{IDENT}@{FQIDENT}"); |
9476 | 1274 |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1275 if (curr_lexer->previous_token_may_be_command ()) |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1276 { |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1277 yyless (0); |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1278 curr_lexer->push_start_state (COMMAND_START); |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1279 } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1280 else |
9476 | 1281 { |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1282 int id_tok = curr_lexer->handle_superclass_identifier (); |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1283 |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1284 if (id_tok >= 0) |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1285 { |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1286 curr_lexer->looking_for_object_index = true; |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1287 |
16683
e1c6ad54259f
maint: periodic merge of default to classdef
John W. Eaton <jwe@octave.org>
diff
changeset
|
1288 return curr_lexer->count_token_internal (id_tok); |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1289 } |
9476 | 1290 } |
1291 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1292 |
9476 | 1293 %{ |
1294 // Metaclass query | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1295 %} |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1296 |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1297 \?{FQIDENT} { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1298 curr_lexer->lexer_debug ("\\?{FQIDENT}"); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1299 |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1300 if (curr_lexer->previous_token_may_be_command () |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1301 && curr_lexer->space_follows_previous_token ()) |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1302 { |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1303 yyless (0); |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1304 curr_lexer->push_start_state (COMMAND_START); |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1305 } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1306 else |
9476 | 1307 { |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1308 int id_tok = curr_lexer->handle_meta_identifier (); |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1309 |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1310 if (id_tok >= 0) |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1311 { |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1312 curr_lexer->looking_for_object_index = true; |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1313 |
16683
e1c6ad54259f
maint: periodic merge of default to classdef
John W. Eaton <jwe@octave.org>
diff
changeset
|
1314 return curr_lexer->count_token_internal (id_tok); |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1315 } |
9476 | 1316 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1317 } |
9476 | 1318 |
4930 | 1319 "@" { |
18492
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1320 curr_lexer->lexer_debug ("@"); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1321 |
16334
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1322 if (curr_lexer->previous_token_may_be_command () |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1323 && curr_lexer->space_follows_previous_token ()) |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1324 { |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1325 yyless (0); |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1326 curr_lexer->push_start_state (COMMAND_START); |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1327 } |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1328 else |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1329 { |
18492
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1330 int tok = curr_lexer->previous_token_value (); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1331 |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1332 if (curr_lexer->whitespace_is_significant () |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1333 && curr_lexer->space_follows_previous_token () |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1334 && ! (tok == '[' || tok == '{' |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1335 || curr_lexer->previous_token_is_binop ())) |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1336 { |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1337 yyless (0); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1338 unput (','); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1339 } |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1340 else |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1341 { |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1342 curr_lexer->current_input_column++; |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1343 |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1344 curr_lexer->looking_at_function_handle++; |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1345 curr_lexer->looking_for_object_index = false; |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1346 curr_lexer->at_beginning_of_statement = false; |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1347 |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1348 return curr_lexer->count_token ('@'); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1349 } |
16334
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1350 } |
4342 | 1351 } |
1352 | |
1353 %{ | |
968 | 1354 // A new line character. New line characters inside matrix constants |
4208 | 1355 // are handled by the <MATRIX_START> start state code above. If closest |
985 | 1356 // nesting is inside parentheses, don't return a row separator. |
968 | 1357 %} |
1358 | |
967 | 1359 {NL} { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1360 curr_lexer->lexer_debug ("{NL}"); |
8535 | 1361 |
16309
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1362 if (curr_lexer->nesting_level.is_paren ()) |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1363 { |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1364 curr_lexer->input_line_number++; |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1365 curr_lexer->current_input_column = 1; |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1366 |
16309
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1367 curr_lexer->at_beginning_of_statement = false; |
21102
dfcb9d74b253
Rename local gripe_XXX functions to err_XXX or warn_XXX.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
1368 curr_lexer->warn_language_extension |
16309
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1369 ("bare newline inside parentheses"); |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1370 } |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1371 else if (curr_lexer->nesting_level.none () |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1372 || curr_lexer->nesting_level.is_anon_fcn_body ()) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
1373 { |
21064
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1374 curr_lexer->input_line_number++; |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1375 curr_lexer->current_input_column = 1; |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1376 |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1377 curr_lexer->at_beginning_of_statement = true; |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1378 |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1379 return curr_lexer->count_token ('\n'); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
1380 } |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1381 else if (curr_lexer->nesting_level.is_bracket_or_brace ()) |
21064
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1382 { |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1383 token *tok = new token (LEXICAL_ERROR, |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1384 "unexpected internal lexer error", |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1385 curr_lexer->input_line_number, |
a9f2c2d72892
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parents:
21055
diff
changeset
|
1386 curr_lexer->current_input_column); |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1387 |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1388 curr_lexer->push_token (tok); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1389 |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1390 curr_lexer->input_line_number++; |
a9f2c2d72892
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parents:
21055
diff
changeset
|
1391 curr_lexer->current_input_column = 1; |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1392 |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1393 return curr_lexer->count_token_internal (LEXICAL_ERROR); |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1394 } |
967 | 1395 } |
1 | 1396 |
968 | 1397 %{ |
1398 // 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
|
1399 // operator. |
968 | 1400 %} |
1401 | |
967 | 1402 "'" { |
16229
7b7b1e4968e8
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John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1403 curr_lexer->lexer_debug ("'"); |
8535 | 1404 |
16275
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diff
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|
1405 if (curr_lexer->previous_token_may_be_command () |
dd7de0345124
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diff
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|
1406 && curr_lexer->space_follows_previous_token ()) |
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diff
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|
1407 { |
16898
531473481084
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parents:
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diff
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|
1408 curr_lexer->current_input_column++; |
16275
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parents:
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diff
changeset
|
1409 curr_lexer->push_start_state (COMMAND_START); |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1410 curr_lexer->begin_string (SQ_STRING_START); |
16275
dd7de0345124
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parents:
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diff
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|
1411 } |
16681
d3619d4d267c
recognize character string at beginning of statement (bug #38926, #38958)
John W. Eaton <jwe@octave.org>
parents:
16680
diff
changeset
|
1412 else if (curr_lexer->at_beginning_of_statement) |
d3619d4d267c
recognize character string at beginning of statement (bug #38926, #38958)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1413 { |
d3619d4d267c
recognize character string at beginning of statement (bug #38926, #38958)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1414 curr_lexer->current_input_column++; |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1415 curr_lexer->begin_string (SQ_STRING_START); |
16681
d3619d4d267c
recognize character string at beginning of statement (bug #38926, #38958)
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1416 } |
16275
dd7de0345124
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|
1417 else |
967 | 1418 { |
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diff
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|
1419 int tok = curr_lexer->previous_token_value (); |
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diff
changeset
|
1420 |
dd7de0345124
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diff
changeset
|
1421 if (curr_lexer->whitespace_is_significant ()) |
16257
db7f07b22b9b
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diff
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|
1422 { |
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|
1423 if (curr_lexer->space_follows_previous_token ()) |
16257
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|
1424 { |
16275
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|
1425 if (tok == '[' || tok == '{' |
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|
1426 || curr_lexer->previous_token_is_binop ()) |
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|
1427 { |
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changeset
|
1428 curr_lexer->current_input_column++; |
16898
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1429 curr_lexer->begin_string (SQ_STRING_START); |
16275
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1430 } |
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|
1431 else |
dd7de0345124
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|
1432 { |
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|
1433 yyless (0); |
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parents:
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diff
changeset
|
1434 curr_lexer->xunput (','); |
16281
1bbc2fc552cf
adjust line and column info when inserting new text in lexer input stream
John W. Eaton <jwe@octave.org>
parents:
16277
diff
changeset
|
1435 // Adjust for comma that was not really in the input stream. |
1bbc2fc552cf
adjust line and column info when inserting new text in lexer input stream
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parents:
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|
1436 curr_lexer->current_input_column--; |
16275
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1437 } |
16257
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1438 } |
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1439 else |
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1440 { |
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1441 if (tok == '[' || tok == '{' |
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|
1442 || curr_lexer->previous_token_is_binop () |
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|
1443 || curr_lexer->previous_token_is_keyword ()) |
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1444 { |
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changeset
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1445 curr_lexer->current_input_column++; |
16898
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changeset
|
1446 curr_lexer->begin_string (SQ_STRING_START); |
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1447 } |
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changeset
|
1448 else |
16284
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* lex.ll, oct-parse.in.yy (HERMITIAN): Rename token from QUOTE.
John W. Eaton <jwe@octave.org>
parents:
16283
diff
changeset
|
1449 return curr_lexer->count_token (HERMITIAN); |
16257
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1450 } |
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1451 } |
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1452 else |
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1453 { |
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changeset
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1454 if (! tok || tok == '[' || tok == '{' || tok == '(' |
16267
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parents:
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1455 || curr_lexer->previous_token_is_binop () |
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1456 || curr_lexer->previous_token_is_keyword ()) |
16257
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1457 { |
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1458 curr_lexer->current_input_column++; |
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1459 curr_lexer->begin_string (SQ_STRING_START); |
16257
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1460 } |
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1461 else |
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* lex.ll, oct-parse.in.yy (HERMITIAN): Rename token from QUOTE.
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1462 return curr_lexer->count_token (HERMITIAN); |
16257
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1463 } |
967 | 1464 } |
1465 } | |
1 | 1466 |
968 | 1467 %{ |
971 | 1468 // Double quotes always begin strings. |
1469 %} | |
1470 | |
973 | 1471 \" { |
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1472 curr_lexer->lexer_debug ("\\\""); |
8535 | 1473 |
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1474 if (curr_lexer->previous_token_may_be_command () |
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1475 && curr_lexer->space_follows_previous_token ()) |
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1476 { |
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1477 curr_lexer->current_input_column++; |
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1478 curr_lexer->push_start_state (COMMAND_START); |
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1479 curr_lexer->begin_string (DQ_STRING_START); |
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1480 } |
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1481 else |
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1482 { |
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1483 int tok = curr_lexer->previous_token_value (); |
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1484 |
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1485 if (curr_lexer->whitespace_is_significant ()) |
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1486 { |
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1487 if (curr_lexer->space_follows_previous_token ()) |
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1488 { |
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1489 if (tok == '[' || tok == '{' |
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1490 || curr_lexer->previous_token_is_binop ()) |
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1491 { |
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1492 curr_lexer->current_input_column++; |
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1493 curr_lexer->begin_string (DQ_STRING_START); |
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1494 } |
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1495 else |
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1496 { |
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1497 yyless (0); |
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1498 curr_lexer->xunput (','); |
16281
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1499 // Adjust for comma that was not really in the input stream. |
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1500 curr_lexer->current_input_column--; |
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1501 } |
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1502 } |
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1503 else |
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1504 { |
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1505 curr_lexer->current_input_column++; |
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1506 curr_lexer->begin_string (DQ_STRING_START); |
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1507 } |
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1508 } |
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1509 else |
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1510 { |
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1511 curr_lexer->current_input_column++; |
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1512 curr_lexer->begin_string (DQ_STRING_START); |
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1513 } |
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1514 } |
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1515 } |
971 | 1516 |
1517 %{ | |
968 | 1518 // Other operators. |
1519 %} | |
1520 | |
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1521 ":" { CMD_OR_OP (":", ':', true); } |
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1522 ".+" { CMD_OR_OP (".+", EPLUS, false); } |
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1523 ".-" { CMD_OR_OP (".-", EMINUS, false); } |
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1524 ".*" { CMD_OR_OP (".*", EMUL, true); } |
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1525 "./" { CMD_OR_OP ("./", EDIV, true); } |
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1526 ".\\" { CMD_OR_OP (".\\", ELEFTDIV, true); } |
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1527 ".^" { CMD_OR_OP (".^", EPOW, true); } |
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1528 ".**" { CMD_OR_OP (".**", EPOW, false); } |
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1529 "<=" { CMD_OR_OP ("<=", EXPR_LE, true); } |
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1530 "==" { CMD_OR_OP ("==", EXPR_EQ, true); } |
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1531 "~=" { CMD_OR_OP ("~=", EXPR_NE, true); } |
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1532 "!=" { CMD_OR_OP ("!=", EXPR_NE, false); } |
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1533 ">=" { CMD_OR_OP (">=", EXPR_GE, true); } |
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1534 "&" { CMD_OR_OP ("&", EXPR_AND, true); } |
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1535 "|" { CMD_OR_OP ("|", EXPR_OR, true); } |
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1536 "<" { CMD_OR_OP ("<", EXPR_LT, true); } |
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1537 ">" { CMD_OR_OP (">", EXPR_GT, true); } |
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1538 "*" { CMD_OR_OP ("*", '*', true); } |
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|
1539 "/" { CMD_OR_OP ("/", '/', true); } |
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1540 |
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1541 %{ |
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1542 // In Matlab, '\' may also trigger command syntax. |
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1543 %} |
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1544 |
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1545 "\\" { return curr_lexer->handle_op ("\\", LEFTDIV); } |
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1546 |
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1547 "^" { CMD_OR_OP ("^", POW, true); } |
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1548 "**" { CMD_OR_OP ("**", POW, false); } |
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1549 "&&" { CMD_OR_OP ("&&", EXPR_AND_AND, true); } |
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1550 "||" { CMD_OR_OP ("||", EXPR_OR_OR, true); } |
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1551 |
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1552 ";" { |
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1553 bool at_beginning_of_statement |
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1554 = (! (curr_lexer->whitespace_is_significant () |
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1555 || curr_lexer->looking_at_object_index.front ())); |
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1556 |
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1557 return curr_lexer->handle_op (";", ';', at_beginning_of_statement); |
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1558 } |
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1559 |
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1560 "+" { CMD_OR_UNARY_OP ("+", '+', true); } |
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1561 "-" { CMD_OR_UNARY_OP ("-", '-', true); } |
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1562 |
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1563 "~" { CMD_OR_UNARY_OP ("~", EXPR_NOT, true); } |
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1564 "!" { CMD_OR_UNARY_OP ("!", EXPR_NOT, false); } |
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1565 |
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1566 "," { |
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1567 bool at_beginning_of_statement |
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1568 = (! (curr_lexer->whitespace_is_significant () |
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1569 || curr_lexer->looking_at_object_index.front ())); |
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1570 |
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1571 return curr_lexer->handle_op (",", ',', at_beginning_of_statement); |
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1572 } |
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1573 |
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1574 ".'" { |
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1575 return curr_lexer->handle_op (".'", TRANSPOSE, false); |
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1576 } |
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1577 |
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1578 "++" { CMD_OR_UNARY_OP ("++", PLUS_PLUS, false); } |
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1579 "--" { CMD_OR_UNARY_OP ("--", MINUS_MINUS, false); } |
1 | 1580 |
967 | 1581 "(" { |
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1582 curr_lexer->lexer_debug ("("); |
8535 | 1583 |
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1584 bool unput_comma = false; |
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1585 |
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1586 if (curr_lexer->whitespace_is_significant () |
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1587 && curr_lexer->space_follows_previous_token ()) |
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1588 { |
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1589 int tok = curr_lexer->previous_token_value (); |
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1590 |
16267
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1591 if (! (tok == '[' || tok == '{' |
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1592 || curr_lexer->previous_token_is_binop ())) |
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1593 unput_comma = true; |
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1594 } |
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1595 |
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1596 if (unput_comma) |
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1597 { |
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1598 yyless (0); |
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1599 curr_lexer->xunput (','); |
16281
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changeset
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1600 // Adjust for comma that was not really in the input stream. |
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1601 curr_lexer->current_input_column--; |
16263
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1602 } |
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changeset
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1603 else |
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changeset
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1604 { |
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1605 // If we are looking for an object index, then push TRUE for |
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1606 // looking_at_object_index. Otherwise, just push whatever state |
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1607 // is current (so that we can pop it off the stack when we find |
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1608 // the matching close paren). |
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1609 |
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1610 curr_lexer->looking_at_object_index.push_front |
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1611 (curr_lexer->looking_for_object_index); |
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1612 |
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1613 curr_lexer->looking_at_indirect_ref = false; |
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1614 curr_lexer->looking_for_object_index = false; |
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1615 curr_lexer->at_beginning_of_statement = false; |
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1616 |
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1617 curr_lexer->nesting_level.paren (); |
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1618 curr_lexer->decrement_promptflag (); |
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1619 |
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1620 return curr_lexer->handle_token ('('); |
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1621 } |
967 | 1622 } |
1623 | |
1624 ")" { | |
16229
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1625 curr_lexer->lexer_debug (")"); |
8535 | 1626 |
16110
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1627 curr_lexer->nesting_level.remove (); |
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1628 curr_lexer->current_input_column++; |
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1629 |
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1630 curr_lexer->looking_at_object_index.pop_front (); |
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1631 |
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1632 curr_lexer->looking_for_object_index = true; |
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1633 curr_lexer->at_beginning_of_statement = false; |
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1634 |
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parents:
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1635 if (curr_lexer->looking_at_anon_fcn_args) |
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1636 { |
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1637 curr_lexer->looking_at_anon_fcn_args = false; |
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1638 curr_lexer->nesting_level.anon_fcn_body (); |
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1639 } |
13237
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1640 |
16229
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1641 return curr_lexer->count_token (')'); |
967 | 1642 } |
1643 | |
8745
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1644 "." { |
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1645 curr_lexer->lexer_debug ("."); |
8745
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1646 |
16325
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parents:
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1647 if (curr_lexer->previous_token_may_be_command () |
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parents:
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1648 && curr_lexer->space_follows_previous_token ()) |
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1649 { |
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1650 yyless (0); |
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1651 curr_lexer->push_start_state (COMMAND_START); |
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1652 } |
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|
1653 else |
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|
1654 { |
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parents:
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1655 curr_lexer->looking_for_object_index = false; |
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1656 curr_lexer->at_beginning_of_statement = false; |
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parents:
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1657 |
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parents:
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1658 return curr_lexer->handle_token ('.'); |
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1659 } |
8745
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parents:
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1660 } |
8535 | 1661 |
16229
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|
1662 %{ |
16257
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changeset
|
1663 // = and op= operators. |
16229
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1664 %} |
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parents:
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changeset
|
1665 |
16360
11115c237231
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parents:
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changeset
|
1666 "=" { |
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parents:
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|
1667 curr_lexer->maybe_mark_previous_token_as_variable (); |
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parents:
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|
1668 |
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parents:
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diff
changeset
|
1669 return curr_lexer->handle_op ("=", '='); |
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parents:
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|
1670 } |
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parents:
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changeset
|
1671 |
16680
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parents:
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changeset
|
1672 "+=" { CMD_OR_COMPUTED_ASSIGN_OP ("+=", ADD_EQ); } |
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parents:
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changeset
|
1673 "-=" { CMD_OR_COMPUTED_ASSIGN_OP ("-=", SUB_EQ); } |
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improve parsing of commands
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parents:
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changeset
|
1674 "*=" { CMD_OR_COMPUTED_ASSIGN_OP ("*=", MUL_EQ); } |
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parents:
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changeset
|
1675 "/=" { CMD_OR_COMPUTED_ASSIGN_OP ("/=", DIV_EQ); } |
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improve parsing of commands
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parents:
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diff
changeset
|
1676 "\\=" { CMD_OR_COMPUTED_ASSIGN_OP ("\\=", LEFTDIV_EQ); } |
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improve parsing of commands
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parents:
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changeset
|
1677 ".+=" { CMD_OR_COMPUTED_ASSIGN_OP (".+=", ADD_EQ); } |
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parents:
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changeset
|
1678 ".-=" { CMD_OR_COMPUTED_ASSIGN_OP (".-=", SUB_EQ); } |
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improve parsing of commands
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parents:
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changeset
|
1679 ".*=" { CMD_OR_COMPUTED_ASSIGN_OP (".*=", EMUL_EQ); } |
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improve parsing of commands
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parents:
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changeset
|
1680 "./=" { CMD_OR_COMPUTED_ASSIGN_OP ("./=", EDIV_EQ); } |
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parents:
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changeset
|
1681 ".\\=" { CMD_OR_COMPUTED_ASSIGN_OP (".\\=", ELEFTDIV_EQ); } |
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parents:
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changeset
|
1682 "^=" { CMD_OR_COMPUTED_ASSIGN_OP ("^=", POW_EQ); } |
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improve parsing of commands
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parents:
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changeset
|
1683 "**=" { CMD_OR_COMPUTED_ASSIGN_OP ("^=", POW_EQ); } |
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parents:
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changeset
|
1684 ".^=" { CMD_OR_COMPUTED_ASSIGN_OP (".^=", EPOW_EQ); } |
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parents:
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changeset
|
1685 ".**=" { CMD_OR_COMPUTED_ASSIGN_OP (".^=", EPOW_EQ); } |
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parents:
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changeset
|
1686 "&=" { CMD_OR_COMPUTED_ASSIGN_OP ("&=", AND_EQ); } |
de79cdbbdf7c
improve parsing of commands
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parents:
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|
1687 "|=" { CMD_OR_COMPUTED_ASSIGN_OP ("|=", OR_EQ); } |
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|
1688 |
16275
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changeset
|
1689 %{ |
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1690 // In Matlab, '{' may also trigger command syntax. |
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|
1691 %} |
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|
1692 |
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changeset
|
1693 "{" { |
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changeset
|
1694 curr_lexer->lexer_debug ("{"); |
8535 | 1695 |
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changeset
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1696 bool unput_comma = false; |
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changeset
|
1697 |
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1698 if (curr_lexer->whitespace_is_significant () |
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1699 && curr_lexer->space_follows_previous_token ()) |
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1700 { |
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1701 int tok = curr_lexer->previous_token_value (); |
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1702 |
16267
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1703 if (! (tok == '[' || tok == '{' |
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1704 || curr_lexer->previous_token_is_binop ())) |
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1705 unput_comma = true; |
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changeset
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1706 } |
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changeset
|
1707 |
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1708 if (unput_comma) |
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changeset
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1709 { |
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diff
changeset
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1710 yyless (0); |
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diff
changeset
|
1711 curr_lexer->xunput (','); |
16281
1bbc2fc552cf
adjust line and column info when inserting new text in lexer input stream
John W. Eaton <jwe@octave.org>
parents:
16277
diff
changeset
|
1712 // Adjust for comma that was not really in the input stream. |
1bbc2fc552cf
adjust line and column info when inserting new text in lexer input stream
John W. Eaton <jwe@octave.org>
parents:
16277
diff
changeset
|
1713 curr_lexer->current_input_column--; |
16263
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4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1714 } |
9acb86e6ac90
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1715 else |
9acb86e6ac90
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parents:
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diff
changeset
|
1716 { |
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parents:
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diff
changeset
|
1717 curr_lexer->nesting_level.brace (); |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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diff
changeset
|
1718 |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1719 curr_lexer->looking_at_object_index.push_front |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
16261
diff
changeset
|
1720 (curr_lexer->looking_for_object_index); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1721 |
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4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1722 curr_lexer->current_input_column += yyleng; |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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diff
changeset
|
1723 curr_lexer->looking_for_object_index = false; |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1724 curr_lexer->at_beginning_of_statement = false; |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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diff
changeset
|
1725 |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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diff
changeset
|
1726 curr_lexer->decrement_promptflag (); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1727 |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1728 curr_lexer->braceflag++; |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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diff
changeset
|
1729 |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1730 curr_lexer->push_start_state (MATRIX_START); |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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diff
changeset
|
1731 |
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4/10 commits reworking the lexer
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parents:
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diff
changeset
|
1732 return curr_lexer->count_token ('{'); |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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diff
changeset
|
1733 } |
3351 | 1734 } |
1735 | |
1736 "}" { | |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1737 curr_lexer->lexer_debug ("}"); |
8535 | 1738 |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1739 curr_lexer->looking_at_object_index.pop_front (); |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1740 |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1741 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
|
1742 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
|
1743 |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1744 curr_lexer->nesting_level.remove (); |
3351 | 1745 |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1746 return curr_lexer->handle_token ('}'); |
3351 | 1747 } |
1748 | |
968 | 1749 %{ |
2066 | 1750 // Unrecognized input is a lexical error. |
968 | 1751 %} |
1 | 1752 |
2042 | 1753 . { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1754 curr_lexer->lexer_debug ("."); |
8535 | 1755 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
1756 curr_lexer->xunput (yytext[0]); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1757 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1758 int c = curr_lexer->text_yyinput (); |
4248 | 1759 |
16294
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1760 if (c == 1) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1761 return -1; |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1762 else if (c == EOF) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1763 return curr_lexer->handle_end_of_input (); |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1764 else |
4240 | 1765 { |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1766 std::ostringstream buf; |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1767 |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1768 buf << "invalid character '" |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1769 << undo_string_escape (static_cast<char> (c)) |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1770 << "' (ASCII " << c << ")"; |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1771 |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1772 token *tok = new token (LEXICAL_ERROR, buf.str (), |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1773 curr_lexer->input_line_number, |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1774 curr_lexer->current_input_column); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1775 |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1776 curr_lexer->push_token (tok); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1777 |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1778 curr_lexer->current_input_column++; |
10315
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1779 |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
1780 return curr_lexer->count_token_internal (LEXICAL_ERROR); |
4240 | 1781 } |
2066 | 1782 } |
1 | 1783 |
21023
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1784 %{ |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1785 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC) |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1786 // Disable this warning for code that is generated by flex. |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1787 #pragma GCC diagnostic push |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1788 #pragma GCC diagnostic ignored "-Wold-style-cast" |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1789 #endif |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1790 %} |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1791 |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1792 %{ |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1793 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC) |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1794 // Also disable this warning for functions that is generated by flex |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1795 // after the pattern rules. |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1796 #pragma GCC diagnostic ignored "-Wunused-parameter" |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1797 #endif |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1798 %} |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1799 |
1 | 1800 %% |
1801 | |
21023
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1802 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC) |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1803 // Restore prevailing warning state for remainder of the file. |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1804 #pragma GCC diagnostic pop |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1805 #endif |
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
1806 |
19784
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1807 void * |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1808 octave_alloc (yy_size_t size, yyscan_t) |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1809 { |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1810 return malloc (size); |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1811 } |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1812 |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1813 void * |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1814 octave_realloc (void *ptr, yy_size_t size, yyscan_t) |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1815 { |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1816 return realloc (ptr, size); |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1817 } |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1818 |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1819 void |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1820 octave_free (void *ptr, yyscan_t) |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1821 { |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1822 free (ptr); |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1823 } |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1824 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1825 static void |
8535 | 1826 display_character (char c) |
1827 { | |
1828 if (isgraph (c)) | |
1829 std::cerr << c; | |
1830 else | |
1831 switch (c) | |
1832 { | |
1833 case 0: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1834 std::cerr << "NUL"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1835 break; |
8535 | 1836 |
1837 case 1: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1838 std::cerr << "SOH"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1839 break; |
8535 | 1840 |
1841 case 2: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1842 std::cerr << "STX"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1843 break; |
8535 | 1844 |
1845 case 3: | |
10315
57a59eae83cc
untabify src C++ source files
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parents:
10182
diff
changeset
|
1846 std::cerr << "ETX"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1847 break; |
8535 | 1848 |
1849 case 4: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1850 std::cerr << "EOT"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1851 break; |
8535 | 1852 |
1853 case 5: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1854 std::cerr << "ENQ"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1855 break; |
8535 | 1856 |
1857 case 6: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1858 std::cerr << "ACK"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1859 break; |
8535 | 1860 |
1861 case 7: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1862 std::cerr << "\\a"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1863 break; |
8535 | 1864 |
1865 case 8: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1866 std::cerr << "\\b"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1867 break; |
8535 | 1868 |
1869 case 9: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1870 std::cerr << "\\t"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1871 break; |
8535 | 1872 |
1873 case 10: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1874 std::cerr << "\\n"; |
57a59eae83cc
untabify src C++ source files
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1875 break; |
8535 | 1876 |
1877 case 11: | |
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1878 std::cerr << "\\v"; |
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1879 break; |
8535 | 1880 |
1881 case 12: | |
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1882 std::cerr << "\\f"; |
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1883 break; |
8535 | 1884 |
1885 case 13: | |
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1886 std::cerr << "\\r"; |
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1887 break; |
8535 | 1888 |
1889 case 14: | |
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1890 std::cerr << "SO"; |
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1891 break; |
8535 | 1892 |
1893 case 15: | |
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1894 std::cerr << "SI"; |
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1895 break; |
8535 | 1896 |
1897 case 16: | |
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1898 std::cerr << "DLE"; |
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1899 break; |
8535 | 1900 |
1901 case 17: | |
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1902 std::cerr << "DC1"; |
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1903 break; |
8535 | 1904 |
1905 case 18: | |
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1906 std::cerr << "DC2"; |
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1907 break; |
8535 | 1908 |
1909 case 19: | |
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1910 std::cerr << "DC3"; |
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1911 break; |
8535 | 1912 |
1913 case 20: | |
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1914 std::cerr << "DC4"; |
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1915 break; |
8535 | 1916 |
1917 case 21: | |
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1918 std::cerr << "NAK"; |
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1919 break; |
8535 | 1920 |
1921 case 22: | |
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1922 std::cerr << "SYN"; |
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1923 break; |
8535 | 1924 |
1925 case 23: | |
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1926 std::cerr << "ETB"; |
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1927 break; |
8535 | 1928 |
1929 case 24: | |
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1930 std::cerr << "CAN"; |
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1931 break; |
8535 | 1932 |
1933 case 25: | |
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1934 std::cerr << "EM"; |
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1935 break; |
8535 | 1936 |
1937 case 26: | |
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1938 std::cerr << "SUB"; |
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1939 break; |
8535 | 1940 |
1941 case 27: | |
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1942 std::cerr << "ESC"; |
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1943 break; |
8535 | 1944 |
1945 case 28: | |
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1946 std::cerr << "FS"; |
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1947 break; |
8535 | 1948 |
1949 case 29: | |
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1950 std::cerr << "GS"; |
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1951 break; |
8535 | 1952 |
1953 case 30: | |
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1954 std::cerr << "RS"; |
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1955 break; |
8535 | 1956 |
1957 case 31: | |
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1958 std::cerr << "US"; |
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1959 break; |
8535 | 1960 |
1961 case 32: | |
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1962 std::cerr << "SPACE"; |
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1963 break; |
8535 | 1964 |
1965 case 127: | |
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1966 std::cerr << "DEL"; |
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1967 break; |
8535 | 1968 } |
1969 } | |
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1970 |
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1971 bool |
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1972 is_keyword (const std::string& s) |
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1973 { |
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1974 // Parsing function names like "set.property_name" inside |
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1975 // classdef-style class definitions is simplified by handling the |
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1976 // "set" and "get" portions of the names using the same mechanism as |
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1977 // is used for keywords. However, they are not really keywords in |
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1978 // the language, so omit them from the list of possible keywords. |
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1979 // Likewise for "enumeration", "events", "methods", and |
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1980 // "properties". |
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1981 |
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1982 return (octave_kw_hash::in_word_set (s.c_str (), s.length ()) != 0 |
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1983 && ! (s == "set" || s == "get" |
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1984 || s == "enumeration" || s == "events" |
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1985 || s == "methods" || s == "properties")); |
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1986 } |
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1987 |
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1988 DEFUN (iskeyword, args, , |
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1989 "-*- texinfo -*-\n\ |
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|
1990 @deftypefn {} {} iskeyword ()\n\ |
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1991 @deftypefnx {} {} iskeyword (@var{name})\n\ |
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1992 Return true if @var{name} is an Octave keyword.\n\ |
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|
1993 \n\ |
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1994 If @var{name} is omitted, return a list of keywords.\n\ |
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1995 @seealso{isvarname, exist}\n\ |
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1996 @end deftypefn") |
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1997 { |
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1998 octave_value retval; |
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1999 |
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|
2000 int nargin = args.length (); |
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|
2001 |
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|
2002 if (nargin > 1) |
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|
2003 print_usage (); |
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|
2004 |
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|
2005 if (nargin == 0) |
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2006 { |
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|
2007 // Neither set nor get are keywords. See the note in the |
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2008 // is_keyword function for additional details. |
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2009 |
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|
2010 string_vector lst (TOTAL_KEYWORDS); |
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2011 |
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2012 int j = 0; |
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2013 |
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2014 for (int i = 0; i < TOTAL_KEYWORDS; i++) |
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2015 { |
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|
2016 std::string kword = wordlist[i].name; |
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|
2017 |
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|
2018 if (kword != "set" && kword != "get") |
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|
2019 lst[j++] = kword; |
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2020 } |
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|
2021 |
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|
2022 lst.resize (j); |
73a21ade0b6b
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|
2023 |
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|
2024 retval = Cell (lst.sort ()); |
73a21ade0b6b
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2025 } |
20812
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|
2026 else |
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2027 { |
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|
2028 std::string name = args(0).xstring_value ("iskeyword: NAME must be a string"); |
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|
2029 retval = is_keyword (name); |
16114
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|
2030 } |
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|
2031 |
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2032 return retval; |
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|
2033 } |
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|
2034 |
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|
2035 /* |
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|
2036 |
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|
2037 %!assert (iskeyword ("for")) |
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2038 %!assert (iskeyword ("fort"), false) |
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|
2039 %!assert (iskeyword ("fft"), false) |
20812
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20798
diff
changeset
|
2040 %!assert (iskeyword ("get"), false) |
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20798
diff
changeset
|
2041 %!assert (iskeyword ("set"), false) |
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20798
diff
changeset
|
2042 |
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20798
diff
changeset
|
2043 %!error iskeyword ("A", "B") |
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20798
diff
changeset
|
2044 %!error <NAME must be a string> iskeyword (1) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2045 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2046 */ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2047 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2048 DEFUN (__display_tokens__, args, nargout, |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2049 "-*- texinfo -*-\n\ |
20895
7697a3433e37
doc: Remove class of function from docstring from generated C++ files.
Rik <rik@octave.org>
parents:
20835
diff
changeset
|
2050 @deftypefn {} {} __display_tokens__ ()\n\ |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2051 Query or set the internal variable that determines whether Octave's\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2052 lexer displays tokens as they are read.\n\ |
18531
04b4fb217b1a
doc: Improve documentation strings in parse-tree directory.
Rik <rik@octave.org>
parents:
18492
diff
changeset
|
2053 @seealso{__lexer_debug_flag__, __token_count__}\n\ |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2054 @end deftypefn") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2055 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2056 return SET_INTERNAL_VARIABLE (display_tokens); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2057 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2058 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2059 DEFUN (__token_count__, , , |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2060 "-*- texinfo -*-\n\ |
20895
7697a3433e37
doc: Remove class of function from docstring from generated C++ files.
Rik <rik@octave.org>
parents:
20835
diff
changeset
|
2061 @deftypefn {} {} __token_count__ ()\n\ |
18531
04b4fb217b1a
doc: Improve documentation strings in parse-tree directory.
Rik <rik@octave.org>
parents:
18492
diff
changeset
|
2062 Return the number of language tokens processed since Octave startup.\n\ |
04b4fb217b1a
doc: Improve documentation strings in parse-tree directory.
Rik <rik@octave.org>
parents:
18492
diff
changeset
|
2063 @seealso{__lexer_debug_flag__, __display_tokens__}\n\ |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2064 @end deftypefn") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2065 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2066 return octave_value (Vtoken_count); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2067 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2068 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2069 DEFUN (__lexer_debug_flag__, args, nargout, |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2070 "-*- texinfo -*-\n\ |
20895
7697a3433e37
doc: Remove class of function from docstring from generated C++ files.
Rik <rik@octave.org>
parents:
20835
diff
changeset
|
2071 @deftypefn {} {@var{val} =} __lexer_debug_flag__ ()\n\ |
7697a3433e37
doc: Remove class of function from docstring from generated C++ files.
Rik <rik@octave.org>
parents:
20835
diff
changeset
|
2072 @deftypefnx {} {@var{old_val} =} __lexer_debug_flag__ (@var{new_val})\n\ |
18531
04b4fb217b1a
doc: Improve documentation strings in parse-tree directory.
Rik <rik@octave.org>
parents:
18492
diff
changeset
|
2073 Query or set the internal flag that determines whether Octave's lexer prints\n\ |
04b4fb217b1a
doc: Improve documentation strings in parse-tree directory.
Rik <rik@octave.org>
parents:
18492
diff
changeset
|
2074 debug information as it processes an expression.\n\ |
04b4fb217b1a
doc: Improve documentation strings in parse-tree directory.
Rik <rik@octave.org>
parents:
18492
diff
changeset
|
2075 @seealso{__display_tokens__, __token_count__, __parse_debug_flag__}\n\ |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2076 @end deftypefn") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2077 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2078 octave_value retval; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2079 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2080 retval = set_internal_variable (lexer_debug_flag, args, nargout, |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2081 "__lexer_debug_flag__"); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2082 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2083 return retval; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2084 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2085 |
16193
d7392bf42fd1
use inheritance to simplify initialization in octave_lexer constructor
John W. Eaton <jwe@octave.org>
parents:
16183
diff
changeset
|
2086 lexical_feedback::~lexical_feedback (void) |
d7392bf42fd1
use inheritance to simplify initialization in octave_lexer constructor
John W. Eaton <jwe@octave.org>
parents:
16183
diff
changeset
|
2087 { |
16230
4bf907906134
use a queue to hold tokens in the lexer
John W. Eaton <jwe@octave.org>
parents:
16229
diff
changeset
|
2088 tokens.clear (); |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2089 } |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2090 |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2091 void |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2092 lexical_feedback::init (void) |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2093 { |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2094 // The closest paren, brace, or bracket nesting is not an object |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2095 // index. |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2096 looking_at_object_index.push_front (false); |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2097 } |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2098 |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2099 void |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2100 lexical_feedback::reset (void) |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2101 { |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2102 end_of_input = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2103 at_beginning_of_statement = true; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2104 looking_at_anon_fcn_args = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2105 looking_at_return_list = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2106 looking_at_parameter_list = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2107 looking_at_decl_list = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2108 looking_at_initializer_expression = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2109 looking_at_matrix_or_assign_lhs = false; |
19593
446c46af4b42
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
18974
diff
changeset
|
2110 looking_for_object_index = false; |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2111 looking_at_indirect_ref = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2112 parsing_class_method = false; |
16211
3449bf257514
maint: fix botched merge of default to classdef
John W. Eaton <jwe@octave.org>
parents:
16205
diff
changeset
|
2113 parsing_classdef = false; |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2114 maybe_classdef_get_set_method = false; |
16211
3449bf257514
maint: fix botched merge of default to classdef
John W. Eaton <jwe@octave.org>
parents:
16205
diff
changeset
|
2115 parsing_classdef_get_method = false; |
3449bf257514
maint: fix botched merge of default to classdef
John W. Eaton <jwe@octave.org>
parents:
16205
diff
changeset
|
2116 parsing_classdef_set_method = false; |
20772
51ab9145f6e6
set all lexical_feedback variables in init function (bug #46522)
John W. Eaton <jwe@octave.org>
parents:
20188
diff
changeset
|
2117 quote_is_transpose = false; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2118 force_script = false; |
16199
810a71122c25
move more global variables to octave_lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16195
diff
changeset
|
2119 reading_fcn_file = false; |
810a71122c25
move more global variables to octave_lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16195
diff
changeset
|
2120 reading_script_file = false; |
810a71122c25
move more global variables to octave_lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16195
diff
changeset
|
2121 reading_classdef_file = false; |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2122 input_line_number = 1; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2123 current_input_column = 1; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2124 bracketflag = 0; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2125 braceflag = 0; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2126 looping = 0; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2127 defining_func = 0; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2128 looking_at_function_handle = 0; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2129 block_comment_nesting_level = 0; |
20772
51ab9145f6e6
set all lexical_feedback variables in init function (bug #46522)
John W. Eaton <jwe@octave.org>
parents:
20188
diff
changeset
|
2130 command_arg_paren_count = 0; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2131 token_count = 0; |
16207
0467d68ca891
move current_input_line to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16203
diff
changeset
|
2132 current_input_line = ""; |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
2133 comment_text = ""; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2134 help_text = ""; |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2135 string_text = ""; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2136 string_line = 0; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2137 string_column = 0; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2138 fcn_file_name = ""; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2139 fcn_file_full_name = ""; |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2140 looking_at_object_index.clear (); |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2141 looking_at_object_index.push_front (false); |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2142 |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2143 while (! parsed_function_name.empty ()) |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2144 parsed_function_name.pop (); |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2145 |
20772
51ab9145f6e6
set all lexical_feedback variables in init function (bug #46522)
John W. Eaton <jwe@octave.org>
parents:
20188
diff
changeset
|
2146 pending_local_variables.clear (); |
51ab9145f6e6
set all lexical_feedback variables in init function (bug #46522)
John W. Eaton <jwe@octave.org>
parents:
20188
diff
changeset
|
2147 symtab_context.clear (); |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2148 nesting_level.reset (); |
16230
4bf907906134
use a queue to hold tokens in the lexer
John W. Eaton <jwe@octave.org>
parents:
16229
diff
changeset
|
2149 tokens.clear (); |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2150 } |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2151 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2152 int |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2153 lexical_feedback::previous_token_value (void) const |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2154 { |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2155 const token *tok = tokens.front (); |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2156 return tok ? tok->token_value () : 0; |
12bf6a3f8c45
store more info in token value class
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parents:
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diff
changeset
|
2157 } |
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parents:
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diff
changeset
|
2158 |
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parents:
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diff
changeset
|
2159 bool |
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parents:
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diff
changeset
|
2160 lexical_feedback::previous_token_value_is (int tok_val) const |
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parents:
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diff
changeset
|
2161 { |
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parents:
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diff
changeset
|
2162 const token *tok = tokens.front (); |
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parents:
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diff
changeset
|
2163 return tok ? tok->token_value_is (tok_val) : false; |
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parents:
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diff
changeset
|
2164 } |
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parents:
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diff
changeset
|
2165 |
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parents:
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diff
changeset
|
2166 void |
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parents:
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diff
changeset
|
2167 lexical_feedback::mark_previous_token_trailing_space (void) |
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parents:
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diff
changeset
|
2168 { |
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parents:
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diff
changeset
|
2169 token *tok = tokens.front (); |
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store more info in token value class
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parents:
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diff
changeset
|
2170 if (tok && ! previous_token_value_is ('\n')) |
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parents:
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diff
changeset
|
2171 tok->mark_trailing_space (); |
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parents:
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diff
changeset
|
2172 } |
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parents:
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diff
changeset
|
2173 |
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parents:
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diff
changeset
|
2174 bool |
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parents:
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diff
changeset
|
2175 lexical_feedback::space_follows_previous_token (void) const |
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parents:
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diff
changeset
|
2176 { |
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parents:
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diff
changeset
|
2177 const token *tok = tokens.front (); |
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parents:
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diff
changeset
|
2178 return tok ? tok->space_follows_token () : false; |
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parents:
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diff
changeset
|
2179 } |
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parents:
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diff
changeset
|
2180 |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2181 bool |
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parents:
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diff
changeset
|
2182 lexical_feedback::previous_token_is_binop (void) const |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2183 { |
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parents:
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diff
changeset
|
2184 int tok = previous_token_value (); |
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parents:
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diff
changeset
|
2185 |
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parents:
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diff
changeset
|
2186 return (tok == '+' || tok == '-' || tok == '@' |
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parents:
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diff
changeset
|
2187 || tok == ',' || tok == ';' || tok == '*' || tok == '/' |
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parents:
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diff
changeset
|
2188 || tok == ':' || tok == '=' || tok == ADD_EQ |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2189 || tok == AND_EQ || tok == DIV_EQ || tok == EDIV |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2190 || tok == EDIV_EQ || tok == ELEFTDIV || tok == ELEFTDIV_EQ |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2191 || tok == EMINUS || tok == EMUL || tok == EMUL_EQ |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2192 || tok == EPOW || tok == EPOW_EQ || tok == EXPR_AND |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2193 || tok == EXPR_AND_AND || tok == EXPR_EQ || tok == EXPR_GE |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2194 || tok == EXPR_GT || tok == EXPR_LE || tok == EXPR_LT |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2195 || tok == EXPR_NE || tok == EXPR_NOT || tok == EXPR_OR |
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John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2196 || tok == EXPR_OR_OR || tok == LEFTDIV || tok == LEFTDIV_EQ |
21294
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2197 || tok == MUL_EQ || tok == OR_EQ || tok == POW |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2198 || tok == POW_EQ || tok == SUB_EQ); |
16257
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parents:
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diff
changeset
|
2199 } |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2200 |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2201 bool |
16267
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2202 lexical_feedback::previous_token_is_keyword (void) const |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2203 { |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2204 const token *tok = tokens.front (); |
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parents:
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diff
changeset
|
2205 return tok ? tok->is_keyword () : false; |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2206 } |
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parents:
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diff
changeset
|
2207 |
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parents:
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diff
changeset
|
2208 bool |
16257
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parents:
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diff
changeset
|
2209 lexical_feedback::previous_token_may_be_command (void) const |
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parents:
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diff
changeset
|
2210 { |
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parents:
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diff
changeset
|
2211 const token *tok = tokens.front (); |
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parents:
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diff
changeset
|
2212 return tok ? tok->may_be_command () : false; |
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parents:
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diff
changeset
|
2213 } |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2214 |
16360
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parents:
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diff
changeset
|
2215 void |
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parents:
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diff
changeset
|
2216 lexical_feedback::maybe_mark_previous_token_as_variable (void) |
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parents:
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changeset
|
2217 { |
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parents:
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diff
changeset
|
2218 token *tok = tokens.front (); |
16756
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avoid looking at previous token that doesn't exist (bug #39180)
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parents:
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diff
changeset
|
2219 |
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parents:
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diff
changeset
|
2220 if (tok && tok->is_symbol ()) |
16360
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recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2221 pending_local_variables.insert (tok->symbol_name ()); |
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parents:
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diff
changeset
|
2222 } |
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parents:
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diff
changeset
|
2223 |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2224 void |
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recognize variables when parsing (bug #38576)
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parents:
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diff
changeset
|
2225 lexical_feedback::mark_as_variables (const std::list<std::string>& lst) |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2226 { |
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recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2227 for (std::list<std::string>::const_iterator p = lst.begin (); |
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recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2228 p != lst.end (); p++) |
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recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2229 { |
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recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2230 pending_local_variables.insert (*p); |
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recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2231 } |
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John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2232 } |
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recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2233 |
16228
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revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
2234 static bool |
e19b1632d7c1
revamp most comment handling
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parents:
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diff
changeset
|
2235 looks_like_copyright (const std::string& s) |
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revamp most comment handling
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parents:
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diff
changeset
|
2236 { |
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parents:
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diff
changeset
|
2237 bool retval = false; |
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parents:
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diff
changeset
|
2238 |
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revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2239 if (! s.empty ()) |
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parents:
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diff
changeset
|
2240 { |
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parents:
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diff
changeset
|
2241 size_t offset = s.find_first_not_of (" \t"); |
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revamp most comment handling
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parents:
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diff
changeset
|
2242 |
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revamp most comment handling
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parents:
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diff
changeset
|
2243 retval = (s.substr (offset, 9) == "Copyright" || s.substr (offset, 6) == "Author"); |
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parents:
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diff
changeset
|
2244 } |
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parents:
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diff
changeset
|
2245 |
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parents:
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changeset
|
2246 return retval; |
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parents:
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diff
changeset
|
2247 } |
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parents:
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diff
changeset
|
2248 |
16194
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parents:
16193
diff
changeset
|
2249 void |
16293
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parents:
16292
diff
changeset
|
2250 octave_base_lexer::input_buffer::fill (const std::string& input, bool eof_arg) |
16183
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parents:
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diff
changeset
|
2251 { |
16195
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parents:
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diff
changeset
|
2252 buffer = input; |
16183
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parents:
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diff
changeset
|
2253 chars_left = buffer.length (); |
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parents:
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diff
changeset
|
2254 pos = buffer.c_str (); |
16195
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parents:
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diff
changeset
|
2255 eof = eof_arg; |
16183
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parents:
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diff
changeset
|
2256 } |
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diff
changeset
|
2257 |
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parents:
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diff
changeset
|
2258 int |
16293
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parents:
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diff
changeset
|
2259 octave_base_lexer::input_buffer::copy_chunk (char *buf, size_t max_size) |
16183
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handle lexer input buffering with class
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parents:
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diff
changeset
|
2260 { |
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parents:
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diff
changeset
|
2261 static const char * const eol = "\n"; |
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diff
changeset
|
2262 |
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parents:
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diff
changeset
|
2263 size_t len = max_size > chars_left ? chars_left : max_size; |
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parents:
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diff
changeset
|
2264 assert (len > 0); |
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diff
changeset
|
2265 |
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parents:
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diff
changeset
|
2266 memcpy (buf, pos, len); |
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parents:
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diff
changeset
|
2267 |
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parents:
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diff
changeset
|
2268 chars_left -= len; |
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parents:
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diff
changeset
|
2269 pos += len; |
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diff
changeset
|
2270 |
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parents:
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diff
changeset
|
2271 // Make sure input ends with a new line character. |
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diff
changeset
|
2272 if (chars_left == 0 && buf[len-1] != '\n') |
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parents:
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diff
changeset
|
2273 { |
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diff
changeset
|
2274 if (len < max_size) |
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parents:
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diff
changeset
|
2275 { |
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parents:
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diff
changeset
|
2276 // There is enough room to plug the newline character in |
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parents:
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diff
changeset
|
2277 // the buffer. |
359d56094efa
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diff
changeset
|
2278 buf[len++] = '\n'; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2279 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2280 else |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2281 { |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2282 // There isn't enough room to plug the newline character |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2283 // in the buffer so arrange to have it returned on the next |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2284 // call to octave_base_lexer::read. |
16183
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2285 pos = eol; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2286 chars_left = 1; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2287 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2288 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2289 |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2290 return len; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2291 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2292 |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2293 octave_base_lexer::~octave_base_lexer (void) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2294 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2295 yylex_destroy (scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2296 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2297 |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2298 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2299 octave_base_lexer::init (void) |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2300 { |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2301 yylex_init (&scanner); |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2302 |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2303 // Make octave_base_lexer object available through yyextra in |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2304 // flex-generated lexer. |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2305 yyset_extra (this, scanner); |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2306 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2307 clear_start_state (); |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2308 } |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2309 |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2310 // Inside Flex-generated functions, yyg is the scanner cast to its real |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2311 // type. Some flex macros that we use in octave_base_lexer member functions |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2312 // (for example, BEGIN) use yyg. If we could perform the actions of |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2313 // these macros with functions instead, we could eliminate the |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2314 // OCTAVE_YYG macro. |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2315 |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2316 #define OCTAVE_YYG \ |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2317 struct yyguts_t *yyg = static_cast<struct yyguts_t*> (scanner) |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2318 |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2319 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2320 octave_base_lexer::reset (void) |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2321 { |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2322 // Start off on the right foot. |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2323 clear_start_state (); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2324 |
16320
09f0cb9cac7d
don't modify symbol table scope in the parser
John W. Eaton <jwe@octave.org>
parents:
16309
diff
changeset
|
2325 symtab_context.clear (); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2326 |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2327 // We do want a prompt by default. |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2328 promptflag (1); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2329 |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2330 // Only ask for input from stdin if we are expecting interactive |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2331 // input. |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2332 |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2333 if (! quitting_gracefully |
19849
1c9ed5b4c73d
input.h: change meaning of interactive and forced_interactive global variables.
Carnë Draug <carandraug@octave.org>
parents:
19784
diff
changeset
|
2334 && interactive |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2335 && ! (reading_fcn_file |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2336 || reading_classdef_file |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2337 || reading_script_file |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2338 || input_from_eval_string ())) |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2339 yyrestart (stdin, scanner); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2340 |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2341 lexical_feedback::reset (); |
17693
efbe746f8fa8
eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents:
17355
diff
changeset
|
2342 |
efbe746f8fa8
eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents:
17355
diff
changeset
|
2343 comment_buf.reset (); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2344 } |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2345 |
16124
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
2346 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2347 octave_base_lexer::prep_for_file (void) |
16124
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
2348 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2349 reading_script_file = true; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2350 |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2351 push_start_state (INPUT_FILE_START); |
16124
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
2352 } |
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
2353 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2354 void |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2355 octave_base_lexer::begin_string (int state) |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2356 { |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2357 string_line = input_line_number; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2358 string_column = current_input_column; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2359 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2360 push_start_state (state); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2361 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2362 |
16121
bdf365c5c9bf
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16120
diff
changeset
|
2363 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2364 octave_base_lexer::handle_end_of_input (void) |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2365 { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
2366 lexer_debug ("<<EOF>>"); |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2367 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2368 if (block_comment_nesting_level != 0) |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2369 { |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2370 warning ("block comment open at end of input"); |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2371 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2372 if ((reading_fcn_file || reading_script_file || reading_classdef_file) |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2373 && ! fcn_file_name.empty ()) |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2374 warning ("near line %d of file '%s.m'", |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2375 input_line_number, fcn_file_name.c_str ()); |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2376 } |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2377 |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
2378 return handle_token (END_OF_INPUT); |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2379 } |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2380 |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2381 char * |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2382 octave_base_lexer::flex_yytext (void) |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2383 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2384 return yyget_text (scanner); |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2385 } |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2386 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2387 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2388 octave_base_lexer::flex_yyleng (void) |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2389 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2390 return yyget_leng (scanner); |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2391 } |
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2392 |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2393 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2394 octave_base_lexer::text_yyinput (void) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2395 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2396 int c = yyinput (scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2397 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2398 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2399 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2400 std::cerr << "I: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2401 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2402 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2403 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2404 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2405 // Convert CRLF into just LF and single CR into LF. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2406 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2407 if (c == '\r') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2408 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2409 c = yyinput (scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2410 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2411 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2412 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2413 std::cerr << "I: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2414 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2415 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2416 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2417 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2418 if (c != '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2419 { |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2420 xunput (c); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2421 c = '\n'; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2422 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2423 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2424 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2425 return c; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2426 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2427 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2428 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2429 octave_base_lexer::xunput (char c, char *buf) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2430 { |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2431 if (c != EOF) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2432 { |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2433 if (lexer_debug_flag) |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2434 { |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2435 std::cerr << "U: "; |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2436 display_character (c); |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2437 std::cerr << std::endl; |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2438 } |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2439 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2440 yyunput (c, buf, scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2441 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2442 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2443 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2444 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2445 octave_base_lexer::xunput (char c) |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2446 { |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2447 char *yytxt = flex_yytext (); |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2448 |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2449 xunput (c, yytxt); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2450 } |
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2451 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2452 bool |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2453 octave_base_lexer::looking_at_space (void) |
16275
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2454 { |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2455 int c = text_yyinput (); |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2456 xunput (c); |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2457 return (c == ' ' || c == '\t'); |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2458 } |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2459 |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2460 bool |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2461 octave_base_lexer::inside_any_object_index (void) |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2462 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2463 bool retval = false; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2464 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2465 for (std::list<bool>::const_iterator i = looking_at_object_index.begin (); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2466 i != looking_at_object_index.end (); i++) |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2467 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2468 if (*i) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2469 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2470 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2471 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2472 } |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2473 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2474 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2475 return retval; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2476 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2477 |
16360
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2478 bool |
21814
0b5fd19477fd
when parsing function, check variable status in new function scope (bug #48031)
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
2479 octave_base_lexer::is_variable (const std::string& name, |
0b5fd19477fd
when parsing function, check variable status in new function scope (bug #48031)
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
2480 symbol_table::scope_id scope) |
16360
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2481 { |
21814
0b5fd19477fd
when parsing function, check variable status in new function scope (bug #48031)
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
2482 return (symbol_table::is_variable (name, scope) |
16360
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2483 || (pending_local_variables.find (name) |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2484 != pending_local_variables.end ())); |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2485 } |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2486 |
4238 | 2487 // Handle keywords. Return -1 if the keyword should be ignored. |
767 | 2488 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2489 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2490 octave_base_lexer::is_keyword_token (const std::string& s) |
1 | 2491 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2492 int l = input_line_number; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2493 int c = current_input_column; |
3805 | 2494 |
1823 | 2495 int len = s.length (); |
922 | 2496 |
5088 | 2497 const octave_kw *kw = octave_kw_hash::in_word_set (s.c_str (), len); |
191 | 2498 |
1497 | 2499 if (kw) |
143 | 2500 { |
18319
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2501 bool previous_at_bos = at_beginning_of_statement; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2502 |
16783
0bf1d559b321
always set at_beginning_of_statement when recognizing keywords (bug #38758)
John W. Eaton <jwe@octave.org>
parents:
16756
diff
changeset
|
2503 // May be reset to true for some token types. |
0bf1d559b321
always set at_beginning_of_statement when recognizing keywords (bug #38758)
John W. Eaton <jwe@octave.org>
parents:
16756
diff
changeset
|
2504 at_beginning_of_statement = false; |
0bf1d559b321
always set at_beginning_of_statement when recognizing keywords (bug #38758)
John W. Eaton <jwe@octave.org>
parents:
16756
diff
changeset
|
2505 |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
2506 token *tok_val = 0; |
1497 | 2507 |
2508 switch (kw->kw_id) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2509 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2510 case break_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2511 case catch_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2512 case continue_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2513 case else_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2514 case otherwise_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2515 case return_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2516 case unwind_protect_cleanup_kw: |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2517 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2518 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2519 |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2520 case persistent_kw: |
16263
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
2521 case global_kw: |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
2522 looking_at_decl_list = true; |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2523 break; |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2524 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2525 case case_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2526 case elseif_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2527 case until_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2528 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2529 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2530 case end_kw: |
14645
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
2531 if (inside_any_object_index () |
18341
02b349ccf0ec
Allow "end" method declaration/definition in classde files.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18340
diff
changeset
|
2532 || (defining_func |
02b349ccf0ec
Allow "end" method declaration/definition in classde files.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18340
diff
changeset
|
2533 && ! (looking_at_return_list |
02b349ccf0ec
Allow "end" method declaration/definition in classde files.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18340
diff
changeset
|
2534 || parsed_function_name.top ()))) |
18319
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2535 { |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2536 at_beginning_of_statement = previous_at_bos; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2537 return 0; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2538 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2539 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2540 tok_val = new token (end_kw, token::simple_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2541 at_beginning_of_statement = true; |
10315
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 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2544 case end_try_catch_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2545 tok_val = new token (end_try_catch_kw, token::try_catch_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2546 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2547 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2548 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2549 case end_unwind_protect_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2550 tok_val = new token (end_unwind_protect_kw, |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2551 token::unwind_protect_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2552 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2553 break; |
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 case endfor_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2556 tok_val = new token (endfor_kw, token::for_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2557 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2558 break; |
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 case endfunction_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2561 tok_val = new token (endfunction_kw, token::function_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2562 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2563 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2564 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2565 case endif_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2566 tok_val = new token (endif_kw, token::if_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2567 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2568 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2569 |
13246 | 2570 case endparfor_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2571 tok_val = new token (endparfor_kw, token::parfor_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2572 at_beginning_of_statement = true; |
13246 | 2573 break; |
2574 | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2575 case endswitch_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2576 tok_val = new token (endswitch_kw, token::switch_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2577 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2578 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2579 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2580 case endwhile_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2581 tok_val = new token (endwhile_kw, token::while_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2582 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2583 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2584 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2585 case endclassdef_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2586 tok_val = new token (endclassdef_kw, token::classdef_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2587 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2588 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2589 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2590 case endenumeration_kw: |
16267
15f55df088e7
6/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16265
diff
changeset
|
2591 tok_val = new token (endenumeration_kw, token::enumeration_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2592 at_beginning_of_statement = true; |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2593 break; |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2594 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2595 case endevents_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2596 tok_val = new token (endevents_kw, token::events_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2597 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2598 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2599 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2600 case endmethods_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2601 tok_val = new token (endmethods_kw, token::methods_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2602 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2603 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2604 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2605 case endproperties_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2606 tok_val = new token (endproperties_kw, token::properties_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2607 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2608 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2609 |
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
|
2610 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2611 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
|
2612 case parfor_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2613 case while_kw: |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2614 decrement_promptflag (); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2615 looping++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2616 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2617 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2618 case do_kw: |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2619 at_beginning_of_statement = true; |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2620 decrement_promptflag (); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2621 looping++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2622 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2623 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2624 case try_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2625 case unwind_protect_kw: |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2626 at_beginning_of_statement = true; |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2627 decrement_promptflag (); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2628 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2629 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2630 case if_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2631 case switch_kw: |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2632 decrement_promptflag (); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2633 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2634 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2635 case get_kw: |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2636 case set_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2637 // 'get' and 'set' are keywords in classdef method |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2638 // declarations. |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2639 if (! maybe_classdef_get_set_method) |
18319
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2640 { |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2641 at_beginning_of_statement = previous_at_bos; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2642 return 0; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2643 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2644 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2645 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2646 case enumeration_kw: |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2647 case events_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2648 case methods_kw: |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2649 case properties_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2650 // 'properties', 'methods' and 'events' are keywords for |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2651 // classdef blocks. |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2652 if (! parsing_classdef) |
18319
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2653 { |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2654 at_beginning_of_statement = previous_at_bos; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2655 return 0; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2656 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2657 // fall through ... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2658 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2659 case classdef_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2660 // 'classdef' is always a keyword. |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2661 decrement_promptflag (); |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2662 |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2663 if (! force_script && token_count == 0 && input_from_file ()) |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2664 { |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2665 reading_classdef_file = true; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2666 reading_script_file = false; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2667 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2668 break; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2669 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2670 case function_kw: |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2671 decrement_promptflag (); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2672 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2673 defining_func++; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2674 parsed_function_name.push (false); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2675 |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2676 if (! force_script && token_count == 0 && input_from_file ()) |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2677 { |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2678 reading_fcn_file = true; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2679 reading_script_file = false; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2680 } |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2681 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2682 if (! (reading_fcn_file || reading_script_file |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2683 || reading_classdef_file)) |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2684 input_line_number = 1; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2685 break; |
1497 | 2686 |
3174 | 2687 case magic_file_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2688 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2689 if ((reading_fcn_file || reading_script_file |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2690 || reading_classdef_file) |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2691 && ! fcn_file_full_name.empty ()) |
19858
77f65eabac20
avoid crash when __FILE__ is used at top level (bug #44363)
John W. Eaton <jwe@octave.org>
parents:
19593
diff
changeset
|
2692 tok_val = new token (magic_file_kw, fcn_file_full_name, l, c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2693 else |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2694 tok_val = new token (magic_file_kw, "stdin", l, c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2695 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2696 break; |
3174 | 2697 |
2698 case magic_line_kw: | |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2699 tok_val = new token (magic_line_kw, static_cast<double> (l), |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2700 "", l, c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2701 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2702 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2703 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2704 panic_impossible (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2705 } |
1497 | 2706 |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
2707 if (! tok_val) |
16267
15f55df088e7
6/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16265
diff
changeset
|
2708 tok_val = new token (kw->tok, true, l, c); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
2709 |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
2710 push_token (tok_val); |
1497 | 2711 |
2712 return kw->tok; | |
143 | 2713 } |
1 | 2714 |
2715 return 0; | |
2716 } | |
2717 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2718 bool |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2719 octave_base_lexer::fq_identifier_contains_keyword (const std::string& s) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2720 { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2721 size_t p1 = 0; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2722 size_t p2; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2723 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2724 std::string s_part; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2725 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2726 do |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2727 { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2728 p2 = s.find ('.', p1); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2729 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2730 if (p2 != std::string::npos) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2731 { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2732 s_part = s.substr (p1, p2 - p1); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2733 p1 = p2 + 1; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2734 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2735 else |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2736 s_part = s.substr (p1); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2737 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2738 if (is_keyword_token (s_part)) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2739 return true; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2740 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2741 while (p2 != std::string::npos); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2742 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2743 return false; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2744 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2745 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2746 bool |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2747 octave_base_lexer::whitespace_is_significant (void) |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2748 { |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2749 return (nesting_level.is_bracket () |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2750 || (nesting_level.is_brace () |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2751 && ! looking_at_object_index.front ())); |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2752 } |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2753 |
3220 | 2754 static inline bool |
20589
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2755 looks_like_bin (const char *s, int len) |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2756 { |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2757 return (len > 2 && s[0] == '0' && (s[1] == 'b' || s[1] == 'B')); |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2758 } |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2759 |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2760 static inline bool |
3220 | 2761 looks_like_hex (const char *s, int len) |
2762 { | |
2763 return (len > 2 && s[0] == '0' && (s[1] == 'x' || s[1] == 'X')); | |
2764 } | |
2765 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2766 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2767 octave_base_lexer::handle_number (void) |
972 | 2768 { |
3220 | 2769 double value = 0.0; |
2770 int nread = 0; | |
2771 | |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2772 char *yytxt = flex_yytext (); |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2773 |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2774 // Strip any underscores |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2775 char *tmptxt = strsave (yytxt); |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2776 char *rptr = tmptxt; |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2777 char *wptr = tmptxt; |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2778 while (*rptr) |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2779 { |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2780 *wptr = *rptr++; |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2781 wptr += (*wptr != '_'); |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2782 } |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2783 *wptr = '\0'; |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2784 |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2785 if (looks_like_hex (tmptxt, strlen (tmptxt))) |
3220 | 2786 { |
21635
986dbd769bb1
Handle large hex and binary integer input (bug #47690)
mmuetzel <markus.muetzel@gmx.de>
parents:
21369
diff
changeset
|
2787 uintmax_t long_int_value; |
986dbd769bb1
Handle large hex and binary integer input (bug #47690)
mmuetzel <markus.muetzel@gmx.de>
parents:
21369
diff
changeset
|
2788 |
986dbd769bb1
Handle large hex and binary integer input (bug #47690)
mmuetzel <markus.muetzel@gmx.de>
parents:
21369
diff
changeset
|
2789 nread = sscanf (tmptxt, "%jx", &long_int_value); |
986dbd769bb1
Handle large hex and binary integer input (bug #47690)
mmuetzel <markus.muetzel@gmx.de>
parents:
21369
diff
changeset
|
2790 |
986dbd769bb1
Handle large hex and binary integer input (bug #47690)
mmuetzel <markus.muetzel@gmx.de>
parents:
21369
diff
changeset
|
2791 value = static_cast<double> (long_int_value); |
3220 | 2792 } |
20589
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2793 else if (looks_like_bin (tmptxt, strlen (tmptxt))) |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2794 { |
21635
986dbd769bb1
Handle large hex and binary integer input (bug #47690)
mmuetzel <markus.muetzel@gmx.de>
parents:
21369
diff
changeset
|
2795 uintmax_t long_int_value = 0; |
20589
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2796 |
21023
ec532a439c6f
rework method of disabling warnings from GCC
John W. Eaton <jwe@octave.org>
parents:
20957
diff
changeset
|
2797 for (size_t i = 0; i < strlen (tmptxt); i++) |
20589
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2798 { |
21635
986dbd769bb1
Handle large hex and binary integer input (bug #47690)
mmuetzel <markus.muetzel@gmx.de>
parents:
21369
diff
changeset
|
2799 long_int_value <<= 1; |
986dbd769bb1
Handle large hex and binary integer input (bug #47690)
mmuetzel <markus.muetzel@gmx.de>
parents:
21369
diff
changeset
|
2800 long_int_value += static_cast<uintmax_t> (tmptxt[i] == '1'); |
20589
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2801 } |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2802 |
21635
986dbd769bb1
Handle large hex and binary integer input (bug #47690)
mmuetzel <markus.muetzel@gmx.de>
parents:
21369
diff
changeset
|
2803 value = static_cast<double> (long_int_value); |
986dbd769bb1
Handle large hex and binary integer input (bug #47690)
mmuetzel <markus.muetzel@gmx.de>
parents:
21369
diff
changeset
|
2804 |
20589
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2805 nread = 1; // Just to pass the assert stmt below |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2806 } |
3220 | 2807 else |
3598 | 2808 { |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2809 char *idx = strpbrk (tmptxt, "Dd"); |
2621 | 2810 |
3598 | 2811 if (idx) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2812 *idx = 'e'; |
3598 | 2813 |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2814 nread = sscanf (tmptxt, "%lf", &value); |
3598 | 2815 } |
972 | 2816 |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2817 delete [] tmptxt; |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2818 |
1826 | 2819 // If yytext doesn't contain a valid number, we are in deep doo doo. |
985 | 2820 |
972 | 2821 assert (nread == 1); |
2822 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2823 looking_for_object_index = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2824 at_beginning_of_statement = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2825 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2826 push_token (new token (NUM, value, yytxt, input_line_number, |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
2827 current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2828 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2829 current_input_column += flex_yyleng (); |
972 | 2830 } |
2831 | |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2832 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2833 octave_base_lexer::handle_continuation (void) |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2834 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2835 char *yytxt = flex_yytext (); |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2836 int yylng = flex_yyleng (); |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2837 |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2838 int offset = 1; |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2839 if (yytxt[0] == '\\') |
21102
dfcb9d74b253
Rename local gripe_XXX functions to err_XXX or warn_XXX.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
2840 warn_language_extension_continuation (); |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2841 else |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2842 offset = 3; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2843 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2844 bool have_space = false; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2845 while (offset < yylng) |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2846 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2847 char c = yytxt[offset]; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2848 if (c == ' ' || c == '\t') |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2849 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2850 have_space = true; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2851 offset++; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2852 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2853 else |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2854 break; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2855 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2856 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2857 if (have_space) |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2858 mark_previous_token_trailing_space (); |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2859 |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2860 bool have_comment = false; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2861 while (offset < yylng) |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2862 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2863 char c = yytxt[offset]; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2864 if (c == '#' || c == '%') |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2865 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2866 have_comment = true; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2867 offset++; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2868 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2869 else |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2870 break; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2871 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2872 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2873 if (have_comment) |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2874 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2875 comment_text = &yytxt[offset]; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2876 |
18246
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2877 // finish_comment sets at_beginning_of_statement to true but |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2878 // that's not be correct if we are handling a continued |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2879 // statement. Preserve the current state. |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2880 |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2881 bool saved_bos = at_beginning_of_statement; |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2882 |
16337
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
John W. Eaton <jwe@octave.org>
parents:
16334
diff
changeset
|
2883 finish_comment (octave_comment_elt::end_of_line); |
18246
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2884 |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2885 at_beginning_of_statement = saved_bos; |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2886 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2887 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2888 decrement_promptflag (); |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2889 input_line_number++; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2890 current_input_column = 1; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2891 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2892 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2893 void |
16337
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
John W. Eaton <jwe@octave.org>
parents:
16334
diff
changeset
|
2894 octave_base_lexer::finish_comment (octave_comment_elt::comment_type typ) |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2895 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2896 bool copyright = looks_like_copyright (comment_text); |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2897 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2898 if (nesting_level.none () && help_text.empty () |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2899 && ! comment_text.empty () && ! copyright) |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2900 help_text = comment_text; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2901 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2902 if (copyright) |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2903 typ = octave_comment_elt::copyright; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2904 |
17693
efbe746f8fa8
eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents:
17355
diff
changeset
|
2905 comment_buf.append (comment_text, typ); |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2906 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2907 comment_text = ""; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2908 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2909 at_beginning_of_statement = true; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2910 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2911 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2912 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2913 octave_base_lexer::handle_close_bracket (int bracket_type) |
971 | 2914 { |
4612 | 2915 int retval = bracket_type; |
3208 | 2916 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2917 if (! nesting_level.none ()) |
971 | 2918 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2919 nesting_level.remove (); |
4613 | 2920 |
2921 if (bracket_type == ']') | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2922 bracketflag--; |
4613 | 2923 else if (bracket_type == '}') |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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changeset
|
2924 braceflag--; |
4613 | 2925 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2926 panic_impossible (); |
971 | 2927 } |
2928 | |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2929 pop_start_state (); |
1001 | 2930 |
3208 | 2931 return retval; |
971 | 2932 } |
2933 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
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|
2934 bool |
16293
57e87ddfee14
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John W. Eaton <jwe@octave.org>
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16292
diff
changeset
|
2935 octave_base_lexer::looks_like_command_arg (void) |
8746
5dd06f19e9be
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John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2936 { |
16275
dd7de0345124
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John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2937 bool space_before = space_follows_previous_token (); |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2938 bool space_after = looking_at_space (); |
dd7de0345124
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16273
diff
changeset
|
2939 |
dd7de0345124
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2940 return (space_before && ! space_after |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
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16273
diff
changeset
|
2941 && previous_token_may_be_command ()); |
8746
5dd06f19e9be
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John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2942 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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8745
diff
changeset
|
2943 |
16113
7c5e5e97a3bc
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2944 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2945 octave_base_lexer::handle_superclass_identifier (void) |
9476 | 2946 { |
16280
0dc6731fc0da
avoid eat_continuation in classdef branch
John W. Eaton <jwe@octave.org>
parents:
16278
diff
changeset
|
2947 std::string meth = flex_yytext (); |
15037
56b8eb7c9c04
improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents:
14647
diff
changeset
|
2948 |
9476 | 2949 size_t pos = meth.find ("@"); |
15037
56b8eb7c9c04
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John W. Eaton <jwe@octave.org>
parents:
14647
diff
changeset
|
2950 std::string cls = meth.substr (pos + 1); |
56b8eb7c9c04
improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents:
14647
diff
changeset
|
2951 meth = meth.substr (0, pos); |
9476 | 2952 |
18520
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Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
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18497
diff
changeset
|
2953 bool kw_token = (is_keyword_token (meth) |
932aca9a7c57
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Michael Goffioul <michael.goffioul@gmail.com>
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18497
diff
changeset
|
2954 || fq_identifier_contains_keyword (cls)); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
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18497
diff
changeset
|
2955 |
9476 | 2956 if (kw_token) |
2957 { | |
21064
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John W. Eaton <jwe@octave.org>
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diff
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|
2958 token *tok |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2959 = new token (LEXICAL_ERROR, |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2960 "method, class, and package names may not be keywords", |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2961 input_line_number, current_input_column); |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
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diff
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|
2962 |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2963 push_token (tok); |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
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diff
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|
2964 |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2965 return count_token_internal (LEXICAL_ERROR); |
9476 | 2966 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2967 |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2968 push_token (new token (SUPERCLASSREF, meth, cls, |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
2969 input_line_number, current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
2970 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2971 current_input_column += flex_yyleng (); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2972 |
9476 | 2973 return SUPERCLASSREF; |
2974 } | |
2975 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2976 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2977 octave_base_lexer::handle_meta_identifier (void) |
9476 | 2978 { |
16280
0dc6731fc0da
avoid eat_continuation in classdef branch
John W. Eaton <jwe@octave.org>
parents:
16278
diff
changeset
|
2979 std::string cls = std::string(flex_yytext ()).substr (1); |
9476 | 2980 |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2981 if (fq_identifier_contains_keyword (cls)) |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2982 { |
21064
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
2983 token *tok = new token (LEXICAL_ERROR, |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
2984 "class and package names may not be keywords", |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
2985 input_line_number, current_input_column); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
2986 push_token (tok); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
2987 |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
2988 return count_token_internal (LEXICAL_ERROR); |
9476 | 2989 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2990 |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2991 push_token (new token (METAQUERY, cls, input_line_number, |
16155
0259254a3ccc
maint: periodic merge of default to classdef
John W. Eaton <jwe@octave.org>
diff
changeset
|
2992 current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2993 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2994 current_input_column += flex_yyleng (); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2995 |
9476 | 2996 return METAQUERY; |
2997 } | |
2998 | |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2999 int |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3000 octave_base_lexer::handle_fq_identifier (void) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3001 { |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3002 std::string fq_id = flex_yytext (); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3003 |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3004 if (fq_identifier_contains_keyword (fq_id)) |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3005 { |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3006 token *tok |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3007 = new token (LEXICAL_ERROR, |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3008 "function, method, class, and package names may not be keywords", |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3009 input_line_number, current_input_column); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3010 |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3011 push_token (tok); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3012 |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3013 return count_token_internal (LEXICAL_ERROR); |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3014 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3015 |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3016 push_token (new token (FQ_IDENT, fq_id, input_line_number, |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3017 current_input_column)); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3018 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3019 current_input_column += flex_yyleng (); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3020 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3021 return FQ_IDENT; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3022 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3023 |
767 | 3024 // Figure out exactly what kind of token to return when we have seen |
4238 | 3025 // an identifier. Handles keywords. Return -1 if the identifier |
3026 // should be ignored. | |
767 | 3027 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3028 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3029 octave_base_lexer::handle_identifier (void) |
146 | 3030 { |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3031 std::string ident = flex_yytext (); |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
3032 |
2970 | 3033 // If we are expecting a structure element, avoid recognizing |
3034 // keywords and other special names and return STRUCT_ELT, which is | |
20188
e679dc89e64b
allow keywords as structure fields again (bug #45092)
John W. Eaton <jwe@octave.org>
parents:
20184
diff
changeset
|
3035 // a string that is also a valid identifier. |
747 | 3036 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3037 if (looking_at_indirect_ref) |
1072 | 3038 { |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3039 push_token (new token (STRUCT_ELT, ident, input_line_number, |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
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16146
diff
changeset
|
3040 current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3041 |
7c5e5e97a3bc
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16111
diff
changeset
|
3042 looking_for_object_index = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3043 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
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16129
diff
changeset
|
3044 current_input_column += flex_yyleng (); |
2819 | 3045 |
2970 | 3046 return STRUCT_ELT; |
1072 | 3047 } |
747 | 3048 |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
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21055
diff
changeset
|
3049 // If ident is a keyword token, then is_keyword_token will set |
20188
e679dc89e64b
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parents:
20184
diff
changeset
|
3050 // at_beginning_of_statement. For example, if tok is an IF |
e679dc89e64b
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John W. Eaton <jwe@octave.org>
parents:
20184
diff
changeset
|
3051 // token, then at_beginning_of_statement will be false. |
e679dc89e64b
allow keywords as structure fields again (bug #45092)
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3052 |
21064
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
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21055
diff
changeset
|
3053 int kw_token = is_keyword_token (ident); |
20188
e679dc89e64b
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John W. Eaton <jwe@octave.org>
parents:
20184
diff
changeset
|
3054 |
16113
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John W. Eaton <jwe@octave.org>
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changeset
|
3055 if (looking_at_function_handle) |
4930 | 3056 { |
3057 if (kw_token) | |
10315
57a59eae83cc
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|
3058 { |
21064
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changeset
|
3059 token *tok |
a9f2c2d72892
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changeset
|
3060 = new token (LEXICAL_ERROR, |
a9f2c2d72892
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diff
changeset
|
3061 "function handles may not refer to keywords", |
a9f2c2d72892
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
3062 input_line_number, current_input_column); |
a9f2c2d72892
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changeset
|
3063 |
a9f2c2d72892
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diff
changeset
|
3064 push_token (tok); |
a9f2c2d72892
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diff
changeset
|
3065 |
a9f2c2d72892
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changeset
|
3066 return count_token_internal (LEXICAL_ERROR); |
10315
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10182
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|
3067 } |
4930 | 3068 else |
10315
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
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changeset
|
3069 { |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3070 push_token (new token (FCN_HANDLE, ident, input_line_number, |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3071 current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3072 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
3073 current_input_column += flex_yyleng (); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3074 looking_for_object_index = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3075 |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
3076 at_beginning_of_statement = false; |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
3077 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3078 return FCN_HANDLE; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3079 } |
4930 | 3080 } |
3081 | |
5102 | 3082 // 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
|
3083 // Keywords can be followed by identifiers. |
146 | 3084 |
3085 if (kw_token) | |
3086 { | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3087 if (kw_token >= 0) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3088 { |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
3089 current_input_column += flex_yyleng (); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3090 looking_for_object_index = false; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3091 } |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3092 |
16783
0bf1d559b321
always set at_beginning_of_statement when recognizing keywords (bug #38758)
John W. Eaton <jwe@octave.org>
parents:
16756
diff
changeset
|
3093 // The call to is_keyword_token set at_beginning_of_statement. |
0bf1d559b321
always set at_beginning_of_statement when recognizing keywords (bug #38758)
John W. Eaton <jwe@octave.org>
parents:
16756
diff
changeset
|
3094 |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3095 return kw_token; |
146 | 3096 } |
3097 | |
17355
f0edd6c752e9
don't convert "end" token to "__end__" for indexing
John W. Eaton <jwe@octave.org>
parents:
17343
diff
changeset
|
3098 // Find the token in the symbol table. |
146 | 3099 |
16320
09f0cb9cac7d
don't modify symbol table scope in the parser
John W. Eaton <jwe@octave.org>
parents:
16309
diff
changeset
|
3100 symbol_table::scope_id sid = symtab_context.curr_scope (); |
09f0cb9cac7d
don't modify symbol table scope in the parser
John W. Eaton <jwe@octave.org>
parents:
16309
diff
changeset
|
3101 |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3102 token *tok = new token (NAME, &(symbol_table::insert (ident, sid)), |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3103 input_line_number, current_input_column); |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
3104 |
16788
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
16783
diff
changeset
|
3105 // The following symbols are handled specially so that things like |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
16783
diff
changeset
|
3106 // |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
16783
diff
changeset
|
3107 // pi +1 |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
16783
diff
changeset
|
3108 // |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
16783
diff
changeset
|
3109 // are parsed as an addition expression instead of as a command-style |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
16783
diff
changeset
|
3110 // function call with the argument "+1". |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
16783
diff
changeset
|
3111 |
16269
488b0fef52c5
7/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16267
diff
changeset
|
3112 if (at_beginning_of_statement |
21814
0b5fd19477fd
when parsing function, check variable status in new function scope (bug #48031)
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
3113 && (! (is_variable (ident, sid) |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3114 || ident == "e" || ident == "pi" |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3115 || ident == "I" || ident == "i" |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3116 || ident == "J" || ident == "j" |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3117 || ident == "Inf" || ident == "inf" |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3118 || ident == "NaN" || ident == "nan"))) |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3119 tok->mark_may_be_command (); |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3120 |
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3121 push_token (tok); |
146 | 3122 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
3123 current_input_column += flex_yyleng (); |
146 | 3124 |
17355
f0edd6c752e9
don't convert "end" token to "__end__" for indexing
John W. Eaton <jwe@octave.org>
parents:
17343
diff
changeset
|
3125 // The magic end index can't be indexed. |
f0edd6c752e9
don't convert "end" token to "__end__" for indexing
John W. Eaton <jwe@octave.org>
parents:
17343
diff
changeset
|
3126 |
21064
a9f2c2d72892
handle lexical errors as parser errors (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21055
diff
changeset
|
3127 if (ident != "end") |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3128 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
|
3129 |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
3130 at_beginning_of_statement = false; |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
3131 |
146 | 3132 return NAME; |
3133 } | |
3134 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3135 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3136 octave_base_lexer::maybe_warn_separator_insert (char sep) |
3388 | 3137 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3138 std::string nm = fcn_file_full_name; |
3388 | 3139 |
5794 | 3140 if (nm.empty ()) |
3141 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
|
3142 "potential auto-insertion of '%c' near line %d", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3143 sep, input_line_number); |
5794 | 3144 else |
3145 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
|
3146 "potential auto-insertion of '%c' near line %d of file %s", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3147 sep, input_line_number, nm.c_str ()); |
3388 | 3148 } |
3149 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3150 void |
21102
dfcb9d74b253
Rename local gripe_XXX functions to err_XXX or warn_XXX.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
3151 octave_base_lexer::warn_single_quote_string (void) |
3400 | 3152 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3153 std::string nm = fcn_file_full_name; |
3400 | 3154 |
5794 | 3155 if (nm.empty ()) |
3156 warning_with_id ("Octave:single-quote-string", | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3157 "single quote delimited string near line %d", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3158 input_line_number); |
5794 | 3159 else |
3160 warning_with_id ("Octave:single-quote-string", | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3161 "single quote delimited string near line %d of file %s", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3162 input_line_number, nm.c_str ()); |
3400 | 3163 } |
3164 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3165 void |
21102
dfcb9d74b253
Rename local gripe_XXX functions to err_XXX or warn_XXX.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
3166 octave_base_lexer::warn_language_extension (const std::string& msg) |
4037 | 3167 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3168 std::string nm = fcn_file_full_name; |
8974
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3169 |
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3170 if (nm.empty ()) |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3171 warning_with_id ("Octave:language-extension", |
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3172 "Octave language extension used: %s", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3173 msg.c_str ()); |
8974
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3174 else |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3175 warning_with_id ("Octave:language-extension", |
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3176 "Octave language extension used: %s near line %d offile %s", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3177 msg.c_str (), input_line_number, nm.c_str ()); |
4037 | 3178 } |
3179 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3180 void |
21102
dfcb9d74b253
Rename local gripe_XXX functions to err_XXX or warn_XXX.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
3181 octave_base_lexer::maybe_warn_language_extension_comment (char c) |
4037 | 3182 { |
3183 if (c == '#') | |
21102
dfcb9d74b253
Rename local gripe_XXX functions to err_XXX or warn_XXX.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
3184 warn_language_extension ("# used as comment character"); |
4037 | 3185 } |
3186 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3187 void |
21102
dfcb9d74b253
Rename local gripe_XXX functions to err_XXX or warn_XXX.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
3188 octave_base_lexer::warn_language_extension_continuation (void) |
4037 | 3189 { |
21102
dfcb9d74b253
Rename local gripe_XXX functions to err_XXX or warn_XXX.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
3190 warn_language_extension ("\\ used as line continuation marker"); |
4037 | 3191 } |
3192 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3193 void |
21102
dfcb9d74b253
Rename local gripe_XXX functions to err_XXX or warn_XXX.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
3194 octave_base_lexer::warn_language_extension_operator (const std::string& op) |
4037 | 3195 { |
3196 std::string t = op; | |
3197 int n = t.length (); | |
3198 if (t[n-1] == '\n') | |
3199 t.resize (n-1); | |
21102
dfcb9d74b253
Rename local gripe_XXX functions to err_XXX or warn_XXX.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
3200 warn_language_extension (t + " used as operator"); |
4037 | 3201 } |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3202 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3203 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3204 octave_base_lexer::push_token (token *tok) |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3205 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3206 YYSTYPE *lval = yyget_lval (scanner); |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3207 lval->tok_val = tok; |
16230
4bf907906134
use a queue to hold tokens in the lexer
John W. Eaton <jwe@octave.org>
parents:
16229
diff
changeset
|
3208 tokens.push (tok); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3209 } |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3210 |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3211 token * |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3212 octave_base_lexer::current_token (void) |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3213 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3214 YYSTYPE *lval = yyget_lval (scanner); |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3215 return lval->tok_val; |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3216 } |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3217 |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3218 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
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|
3219 octave_base_lexer::display_token (int tok) |
16119
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|
3220 { |
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|
3221 switch (tok) |
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|
3222 { |
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maint: reorder class definitions in lex.ll
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3223 case '=': std::cerr << "'='\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3224 case ':': std::cerr << "':'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
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|
3225 case '-': std::cerr << "'-'\n"; break; |
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maint: reorder class definitions in lex.ll
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|
3226 case '+': std::cerr << "'+'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3227 case '*': std::cerr << "'*'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3228 case '/': std::cerr << "'/'\n"; break; |
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maint: reorder class definitions in lex.ll
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|
3229 case ADD_EQ: std::cerr << "ADD_EQ\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3230 case SUB_EQ: std::cerr << "SUB_EQ\n"; break; |
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maint: reorder class definitions in lex.ll
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changeset
|
3231 case MUL_EQ: std::cerr << "MUL_EQ\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3232 case DIV_EQ: std::cerr << "DIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3233 case LEFTDIV_EQ: std::cerr << "LEFTDIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3234 case POW_EQ: std::cerr << "POW_EQ\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3235 case EMUL_EQ: std::cerr << "EMUL_EQ\n"; break; |
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maint: reorder class definitions in lex.ll
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diff
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|
3236 case EDIV_EQ: std::cerr << "EDIV_EQ\n"; break; |
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maint: reorder class definitions in lex.ll
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|
3237 case ELEFTDIV_EQ: std::cerr << "ELEFTDIV_EQ\n"; break; |
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maint: reorder class definitions in lex.ll
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|
3238 case EPOW_EQ: std::cerr << "EPOW_EQ\n"; break; |
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maint: reorder class definitions in lex.ll
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|
3239 case AND_EQ: std::cerr << "AND_EQ\n"; break; |
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maint: reorder class definitions in lex.ll
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|
3240 case OR_EQ: std::cerr << "OR_EQ\n"; break; |
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maint: reorder class definitions in lex.ll
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|
3241 case EXPR_AND_AND: std::cerr << "EXPR_AND_AND\n"; break; |
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maint: reorder class definitions in lex.ll
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|
3242 case EXPR_OR_OR: std::cerr << "EXPR_OR_OR\n"; break; |
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maint: reorder class definitions in lex.ll
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|
3243 case EXPR_AND: std::cerr << "EXPR_AND\n"; break; |
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maint: reorder class definitions in lex.ll
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3244 case EXPR_OR: std::cerr << "EXPR_OR\n"; break; |
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maint: reorder class definitions in lex.ll
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3245 case EXPR_NOT: std::cerr << "EXPR_NOT\n"; break; |
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3246 case EXPR_LT: std::cerr << "EXPR_LT\n"; break; |
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3247 case EXPR_LE: std::cerr << "EXPR_LE\n"; break; |
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3248 case EXPR_EQ: std::cerr << "EXPR_EQ\n"; break; |
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3249 case EXPR_NE: std::cerr << "EXPR_NE\n"; break; |
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3250 case EXPR_GE: std::cerr << "EXPR_GE\n"; break; |
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3251 case EXPR_GT: std::cerr << "EXPR_GT\n"; break; |
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3252 case LEFTDIV: std::cerr << "LEFTDIV\n"; break; |
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3253 case EMUL: std::cerr << "EMUL\n"; break; |
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maint: reorder class definitions in lex.ll
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3254 case EDIV: std::cerr << "EDIV\n"; break; |
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3255 case ELEFTDIV: std::cerr << "ELEFTDIV\n"; break; |
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3256 case EPLUS: std::cerr << "EPLUS\n"; break; |
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|
3257 case EMINUS: std::cerr << "EMINUS\n"; break; |
16284
09881dab3aaf
* lex.ll, oct-parse.in.yy (HERMITIAN): Rename token from QUOTE.
John W. Eaton <jwe@octave.org>
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16283
diff
changeset
|
3258 case HERMITIAN: std::cerr << "HERMITIAN\n"; break; |
16119
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3259 case TRANSPOSE: std::cerr << "TRANSPOSE\n"; break; |
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|
3260 case PLUS_PLUS: std::cerr << "PLUS_PLUS\n"; break; |
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|
3261 case MINUS_MINUS: std::cerr << "MINUS_MINUS\n"; break; |
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|
3262 case POW: std::cerr << "POW\n"; break; |
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3263 case EPOW: std::cerr << "EPOW\n"; break; |
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|
3264 |
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|
3265 case NUM: |
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changeset
|
3266 case IMAG_NUM: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
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|
3267 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
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|
3268 token *tok_val = current_token (); |
16126
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localize use of yylval.tok_val in lexical_feedback member functions
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3269 std::cerr << (tok == NUM ? "NUM" : "IMAG_NUM") |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
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|
3270 << " [" << tok_val->number () << "]\n"; |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
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3271 } |
16119
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|
3272 break; |
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3273 |
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3274 case STRUCT_ELT: |
16126
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localize use of yylval.tok_val in lexical_feedback member functions
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|
3275 { |
16148
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|
3276 token *tok_val = current_token (); |
16126
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|
3277 std::cerr << "STRUCT_ELT [" << tok_val->text () << "]\n"; |
5c885c13bfa3
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|
3278 } |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
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|
3279 break; |
16119
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|
3280 |
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|
3281 case NAME: |
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|
3282 { |
16148
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|
3283 token *tok_val = current_token (); |
16126
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localize use of yylval.tok_val in lexical_feedback member functions
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|
3284 symbol_table::symbol_record *sr = tok_val->sym_rec (); |
16119
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maint: reorder class definitions in lex.ll
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|
3285 std::cerr << "NAME"; |
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maint: reorder class definitions in lex.ll
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|
3286 if (sr) |
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|
3287 std::cerr << " [" << sr->name () << "]"; |
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maint: reorder class definitions in lex.ll
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|
3288 std::cerr << "\n"; |
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maint: reorder class definitions in lex.ll
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|
3289 } |
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|
3290 break; |
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maint: reorder class definitions in lex.ll
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|
3291 |
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maint: reorder class definitions in lex.ll
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|
3292 case END: std::cerr << "END\n"; break; |
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|
3293 |
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maint: reorder class definitions in lex.ll
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|
3294 case DQ_STRING: |
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maint: reorder class definitions in lex.ll
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|
3295 case SQ_STRING: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
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|
3296 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
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|
3297 token *tok_val = current_token (); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
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|
3298 |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
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|
3299 std::cerr << (tok == DQ_STRING ? "DQ_STRING" : "SQ_STRING") |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
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|
3300 << " [" << tok_val->text () << "]\n"; |
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localize use of yylval.tok_val in lexical_feedback member functions
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|
3301 } |
16119
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|
3302 break; |
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|
3303 |
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|
3304 case FOR: std::cerr << "FOR\n"; break; |
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|
3305 case WHILE: std::cerr << "WHILE\n"; break; |
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|
3306 case DO: std::cerr << "DO\n"; break; |
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|
3307 case UNTIL: std::cerr << "UNTIL\n"; break; |
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|
3308 case IF: std::cerr << "IF\n"; break; |
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John W. Eaton <jwe@octave.org>
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|
3309 case ELSEIF: std::cerr << "ELSEIF\n"; break; |
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|
3310 case ELSE: std::cerr << "ELSE\n"; break; |
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John W. Eaton <jwe@octave.org>
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|
3311 case SWITCH: std::cerr << "SWITCH\n"; break; |
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|
3312 case CASE: std::cerr << "CASE\n"; break; |
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|
3313 case OTHERWISE: std::cerr << "OTHERWISE\n"; break; |
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John W. Eaton <jwe@octave.org>
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|
3314 case BREAK: std::cerr << "BREAK\n"; break; |
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John W. Eaton <jwe@octave.org>
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|
3315 case CONTINUE: std::cerr << "CONTINUE\n"; break; |
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3316 case FUNC_RET: std::cerr << "FUNC_RET\n"; break; |
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3317 case UNWIND: std::cerr << "UNWIND\n"; break; |
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John W. Eaton <jwe@octave.org>
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|
3318 case CLEANUP: std::cerr << "CLEANUP\n"; break; |
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|
3319 case TRY: std::cerr << "TRY\n"; break; |
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|
3320 case CATCH: std::cerr << "CATCH\n"; break; |
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|
3321 case GLOBAL: std::cerr << "GLOBAL\n"; break; |
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|
3322 case PERSISTENT: std::cerr << "PERSISTENT\n"; break; |
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maint: reorder class definitions in lex.ll
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|
3323 case FCN_HANDLE: std::cerr << "FCN_HANDLE\n"; break; |
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|
3324 case END_OF_INPUT: std::cerr << "END_OF_INPUT\n\n"; break; |
b31eb56f4d84
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|
3325 case LEXICAL_ERROR: std::cerr << "LEXICAL_ERROR\n\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3326 case FCN: std::cerr << "FCN\n"; break; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3327 case INPUT_FILE: std::cerr << "INPUT_FILE\n"; break; |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3328 case SUPERCLASSREF: std::cerr << "SUPERCLASSREF\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3329 case METAQUERY: std::cerr << "METAQUERY\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3330 case GET: std::cerr << "GET\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3331 case SET: std::cerr << "SET\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3332 case PROPERTIES: std::cerr << "PROPERTIES\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3333 case METHODS: std::cerr << "METHODS\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3334 case EVENTS: std::cerr << "EVENTS\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3335 case CLASSDEF: std::cerr << "CLASSDEF\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3336 case '\n': std::cerr << "\\n\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3337 case '\r': std::cerr << "\\r\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3338 case '\t': std::cerr << "TAB\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3339 default: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3340 { |
16166
cb80b1d062b1
don't attempt to print unprintable tokens
John W. Eaton <jwe@octave.org>
parents:
16164
diff
changeset
|
3341 if (tok < 256 && tok > 31) |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3342 std::cerr << static_cast<char> (tok) << "\n"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3343 else |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3344 std::cerr << "UNKNOWN(" << tok << ")\n"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3345 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3346 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3347 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3348 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3349 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3350 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3351 octave_base_lexer::fatal_error (const char *msg) |
16129
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3352 { |
21074
9ff2ae6cd5b0
rework fatal flex error handler (bug #46877)
John W. Eaton <jwe@octave.org>
parents:
21064
diff
changeset
|
3353 error ("fatal lexer error: %s", msg); |
16129
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3354 } |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3355 |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3356 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3357 octave_base_lexer::lexer_debug (const char *pattern) |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3358 { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3359 if (lexer_debug_flag) |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3360 { |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3361 std::cerr << std::endl; |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3362 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3363 display_start_state (); |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3364 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3365 std::cerr << "P: " << pattern << std::endl; |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3366 std::cerr << "T: " << flex_yytext () << std::endl; |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3367 } |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3368 } |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3369 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3370 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3371 octave_base_lexer::push_start_state (int state) |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3372 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3373 OCTAVE_YYG; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3374 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3375 start_state_stack.push (state); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3376 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3377 BEGIN (start_state ()); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3378 } |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3379 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3380 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3381 octave_base_lexer::pop_start_state (void) |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3382 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3383 OCTAVE_YYG; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3384 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3385 start_state_stack.pop (); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3386 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3387 BEGIN (start_state ()); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3388 } |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3389 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3390 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3391 octave_base_lexer::clear_start_state (void) |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3392 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3393 while (! start_state_stack.empty ()) |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3394 start_state_stack.pop (); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3395 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3396 push_start_state (INITIAL); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3397 } |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3398 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3399 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3400 octave_base_lexer::display_start_state (void) const |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3401 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3402 std::cerr << "S: "; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3403 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3404 switch (start_state ()) |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3405 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3406 case INITIAL: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3407 std::cerr << "INITIAL" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3408 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3409 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3410 case COMMAND_START: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3411 std::cerr << "COMMAND_START" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3412 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3413 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3414 case MATRIX_START: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3415 std::cerr << "MATRIX_START" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3416 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3417 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3418 case INPUT_FILE_START: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3419 std::cerr << "INPUT_FILE_BEGIN" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3420 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3421 |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3422 case BLOCK_COMMENT_START: |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3423 std::cerr << "BLOCK_COMMENT_START" << std::endl; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3424 break; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3425 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3426 case LINE_COMMENT_START: |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3427 std::cerr << "LINE_COMMENT_START" << std::endl; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3428 break; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3429 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3430 case DQ_STRING_START: |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3431 std::cerr << "DQ_STRING_START" << std::endl; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3432 break; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3433 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3434 case SQ_STRING_START: |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3435 std::cerr << "SQ_STRING_START" << std::endl; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3436 break; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3437 |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3438 default: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3439 std::cerr << "UNKNOWN START STATE!" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3440 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3441 } |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3442 } |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3443 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3444 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3445 octave_base_lexer::handle_op (const char *pattern, int tok, bool bos) |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3446 { |
16263
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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diff
changeset
|
3447 lexer_debug (pattern); |
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|
3448 |
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changeset
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3449 return handle_op_internal (tok, bos, true); |
16229
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use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3450 } |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3451 |
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use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3452 int |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3453 octave_base_lexer::handle_language_extension_op (const char *pattern, int tok, |
e9a0bd0b125c
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Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3454 bool bos) |
16229
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use functions instead of token return macros in lexer
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parents:
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diff
changeset
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3455 { |
16263
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parents:
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diff
changeset
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3456 lexer_debug (pattern); |
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parents:
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3457 |
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parents:
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changeset
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3458 return handle_op_internal (tok, bos, false); |
16229
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use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3459 } |
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use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3460 |
16263
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parents:
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diff
changeset
|
3461 bool |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3462 octave_base_lexer::maybe_unput_comma_before_unary_op (int tok) |
16263
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4/10 commits reworking the lexer
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parents:
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changeset
|
3463 { |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3464 int prev_tok = previous_token_value (); |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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changeset
|
3465 |
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4/10 commits reworking the lexer
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parents:
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diff
changeset
|
3466 bool unput_comma = false; |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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diff
changeset
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3467 |
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4/10 commits reworking the lexer
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parents:
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diff
changeset
|
3468 if (whitespace_is_significant () && space_follows_previous_token ()) |
9acb86e6ac90
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3469 { |
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parents:
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diff
changeset
|
3470 int c = text_yyinput (); |
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4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3471 xunput (c); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
3472 |
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parents:
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diff
changeset
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3473 bool space_after = (c == ' ' || c == '\t'); |
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parents:
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diff
changeset
|
3474 |
16267
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parents:
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diff
changeset
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3475 if (! (prev_tok == '[' || prev_tok == '{' |
16263
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parents:
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changeset
|
3476 || previous_token_is_binop () |
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4/10 commits reworking the lexer
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parents:
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3477 || ((tok == '+' || tok == '-') && space_after))) |
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parents:
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changeset
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3478 unput_comma = true; |
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parents:
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changeset
|
3479 } |
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parents:
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changeset
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3480 |
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parents:
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changeset
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3481 return unput_comma; |
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parents:
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changeset
|
3482 } |
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parents:
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changeset
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3483 |
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parents:
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diff
changeset
|
3484 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
3485 octave_base_lexer::handle_unary_op (int tok, bool bos) |
16263
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parents:
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changeset
|
3486 { |
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parents:
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changeset
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3487 return maybe_unput_comma_before_unary_op (tok) |
16275
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parents:
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changeset
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3488 ? -1 : handle_op_internal (tok, bos, true); |
16263
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parents:
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changeset
|
3489 } |
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parents:
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changeset
|
3490 |
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4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3491 int |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3492 octave_base_lexer::handle_language_extension_unary_op (int tok, bool bos) |
16263
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parents:
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changeset
|
3493 { |
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4/10 commits reworking the lexer
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parents:
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changeset
|
3494 return maybe_unput_comma_before_unary_op (tok) |
16275
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10/10 commits reworking the lexer
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parents:
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changeset
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3495 ? -1 : handle_op_internal (tok, bos, false); |
16263
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4/10 commits reworking the lexer
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parents:
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changeset
|
3496 } |
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parents:
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diff
changeset
|
3497 |
16229
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use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3498 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3499 octave_base_lexer::handle_op_internal (int tok, bool bos, bool compat) |
16229
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use functions instead of token return macros in lexer
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parents:
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changeset
|
3500 { |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3501 if (! compat) |
21102
dfcb9d74b253
Rename local gripe_XXX functions to err_XXX or warn_XXX.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
3502 warn_language_extension_operator (flex_yytext ()); |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
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diff
changeset
|
3503 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3504 push_token (new token (tok, input_line_number, current_input_column)); |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3505 |
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use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3506 current_input_column += flex_yyleng (); |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3507 looking_for_object_index = false; |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3508 at_beginning_of_statement = bos; |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3509 |
16643
4258750c76ed
don't push operator tokens twice
John W. Eaton <jwe@octave.org>
parents:
16365
diff
changeset
|
3510 return count_token_internal (tok); |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3511 } |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3512 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3513 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3514 octave_base_lexer::handle_token (const std::string& name, int tok) |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3515 { |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
3516 token *tok_val = new token (tok, name, input_line_number, |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
3517 current_input_column); |
16231
2b15ae55c721
put all tokens in the token cache
John W. Eaton <jwe@octave.org>
parents:
16230
diff
changeset
|
3518 |
2b15ae55c721
put all tokens in the token cache
John W. Eaton <jwe@octave.org>
parents:
16230
diff
changeset
|
3519 return handle_token (tok, tok_val); |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3520 } |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3521 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3522 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3523 octave_base_lexer::handle_token (int tok, token *tok_val) |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3524 { |
16231
2b15ae55c721
put all tokens in the token cache
John W. Eaton <jwe@octave.org>
parents:
16230
diff
changeset
|
3525 if (! tok_val) |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
3526 tok_val = new token (tok, input_line_number, current_input_column); |
16231
2b15ae55c721
put all tokens in the token cache
John W. Eaton <jwe@octave.org>
parents:
16230
diff
changeset
|
3527 |
2b15ae55c721
put all tokens in the token cache
John W. Eaton <jwe@octave.org>
parents:
16230
diff
changeset
|
3528 push_token (tok_val); |
2b15ae55c721
put all tokens in the token cache
John W. Eaton <jwe@octave.org>
parents:
16230
diff
changeset
|
3529 |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3530 current_input_column += flex_yyleng (); |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3531 |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3532 return count_token_internal (tok); |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3533 } |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3534 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3535 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3536 octave_base_lexer::count_token (int tok) |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3537 { |
16257
db7f07b22b9b
1/10 commits reworking the lexer
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parents:
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diff
changeset
|
3538 token *tok_val = new token (tok, input_line_number, current_input_column); |
db7f07b22b9b
1/10 commits reworking the lexer
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parents:
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diff
changeset
|
3539 |
db7f07b22b9b
1/10 commits reworking the lexer
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parents:
16255
diff
changeset
|
3540 push_token (tok_val); |
db7f07b22b9b
1/10 commits reworking the lexer
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parents:
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diff
changeset
|
3541 |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
3542 return count_token_internal (tok); |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
3543 } |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3544 |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
3545 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3546 octave_base_lexer::count_token_internal (int tok) |
16257
db7f07b22b9b
1/10 commits reworking the lexer
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parents:
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diff
changeset
|
3547 { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
16228
diff
changeset
|
3548 if (tok != '\n') |
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
16228
diff
changeset
|
3549 { |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3550 Vtoken_count++; |
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
16228
diff
changeset
|
3551 token_count++; |
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
16228
diff
changeset
|
3552 } |
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
16228
diff
changeset
|
3553 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3554 return show_token (tok); |
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
16228
diff
changeset
|
3555 } |
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
16228
diff
changeset
|
3556 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3557 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3558 octave_base_lexer::show_token (int tok) |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
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diff
changeset
|
3559 { |
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
16228
diff
changeset
|
3560 if (Vdisplay_tokens) |
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
16228
diff
changeset
|
3561 display_token (tok); |
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
16228
diff
changeset
|
3562 |
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
16228
diff
changeset
|
3563 if (lexer_debug_flag) |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3564 { |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3565 std::cerr << "R: "; |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3566 display_token (tok); |
19593
446c46af4b42
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
18974
diff
changeset
|
3567 std::cerr << std::endl; |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3568 } |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3569 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3570 return tok; |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3571 } |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3572 |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3573 void |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3574 octave_base_lexer::enable_fq_identifier (void) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3575 { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3576 push_start_state (FQ_IDENT_START); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3577 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3578 |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3579 int |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3580 octave_lexer::fill_flex_buffer (char *buf, unsigned max_size) |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3581 { |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3582 int status = 0; |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3583 |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3584 if (input_buf.empty ()) |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3585 { |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3586 bool eof = false; |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3587 current_input_line = input_reader.get_input (eof); |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3588 input_buf.fill (current_input_line, eof); |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3589 } |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3590 |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3591 if (! input_buf.empty ()) |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3592 status = input_buf.copy_chunk (buf, max_size); |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3593 else |
19379
c1ce43276b86
avoid printing debug location in cmd window when using GUI to step
John W. Eaton <jwe@octave.org>
parents:
19285
diff
changeset
|
3594 status = YY_NULL; |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3595 |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3596 return status; |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3597 } |
16294
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3598 |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3599 int |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3600 octave_push_lexer::fill_flex_buffer (char *buf, unsigned max_size) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3601 { |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3602 int status = 0; |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3603 |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3604 if (input_buf.empty () && ! input_buf.at_eof ()) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3605 input_buf.fill (std::string (1, static_cast<char> (1)), false); |
19593
446c46af4b42
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
18974
diff
changeset
|
3606 |
16294
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3607 if (! input_buf.empty ()) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3608 status = input_buf.copy_chunk (buf, max_size); |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3609 else |
19379
c1ce43276b86
avoid printing debug location in cmd window when using GUI to step
John W. Eaton <jwe@octave.org>
parents:
19285
diff
changeset
|
3610 status = YY_NULL; |
16294
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3611 |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3612 return status; |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3613 } |
18224
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
3614 |