Mercurial > octave-antonio
annotate libinterp/parse-tree/lex.ll @ 18975:c59745865c7f gui-release
maint: Periodic merge of stable to gui-release.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 01 Aug 2014 09:06:21 -0400 |
parents | bd1fd4ed3d67 d8abf813c69f |
children | dcb260e7a648 a3eead909bf9 |
rev | line source |
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1994 | 1 /* |
1 | 2 |
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3 Copyright (C) 1993-2013 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 anotehr 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 |
4753 | 34 %option prefix = "octave_" |
16146 | 35 %option noyywrap |
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36 %option reentrant |
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37 %option bison-bridge |
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39 %top { |
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40 #ifdef HAVE_CONFIG_H |
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41 #include <config.h> |
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42 #endif |
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44 } |
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45 |
18234 | 46 %x COMMAND_START |
4208 | 47 %s MATRIX_START |
4240 | 48 |
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49 %x INPUT_FILE_START |
1 | 50 |
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51 %x BLOCK_COMMENT_START |
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52 %x LINE_COMMENT_START |
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53 |
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54 %x DQ_STRING_START |
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55 %x SQ_STRING_START |
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56 |
1 | 57 %{ |
240 | 58 |
1341 | 59 #include <cctype> |
60 #include <cstring> | |
61 | |
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62 #include <iostream> |
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63 #include <set> |
5765 | 64 #include <sstream> |
1823 | 65 #include <string> |
4214 | 66 #include <stack> |
1823 | 67 |
4093 | 68 #include <sys/types.h> |
69 #include <unistd.h> | |
70 | |
2926 | 71 #include "cmd-edit.h" |
4153 | 72 #include "quit.h" |
4910 | 73 #include "lo-mappers.h" |
2926 | 74 |
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75 // These would be alphabetical, but oct-parse.h must be included before |
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76 // oct-gperf.h and oct-parse.h must be included after token.h and the tree |
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77 // class declarations. We can't include oct-parse.h in oct-gperf.h |
1497 | 78 // because it may not be protected to allow it to be included multiple |
79 // times. | |
80 | |
4264 | 81 #include "Cell.h" |
3665 | 82 #include "comment-list.h" |
2181 | 83 #include "defun.h" |
1355 | 84 #include "error.h" |
4910 | 85 #include "gripes.h" |
1351 | 86 #include "input.h" |
1355 | 87 #include "lex.h" |
2891 | 88 #include "ov.h" |
1355 | 89 #include "parse.h" |
2987 | 90 #include "pt-all.h" |
2891 | 91 #include "symtab.h" |
92 #include "token.h" | |
93 #include "toplev.h" | |
1355 | 94 #include "utils.h" |
95 #include "variables.h" | |
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96 #include <oct-parse.h> |
2492 | 97 #include <oct-gperf.h> |
1 | 98 |
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99 // FIXME: with bison 3.x, OCTAVE_STYPE appears in the generated |
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100 // oct-parse.h file, but there is no definition for YYSTYPE, which is |
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101 // needed by the code that is generated by flex. I can't seem to find a |
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102 // way to tell flex to use OCTAVE_STYPE instead of YYSTYPE in the code |
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103 // it generates, or to tell bison to provide the definition of YYSTYPE |
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104 // in the generated oct-parse.h file. |
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105 |
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106 #if defined (OCTAVE_STYPE_IS_DECLARED) && ! defined YYSTYPE |
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107 #define YYSTYPE OCTAVE_STYPE |
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108 #endif |
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109 |
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110 #if defined (GNULIB_NAMESPACE) |
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111 // Calls to the following functions appear in the generated output from |
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112 // flex without the namespace tag. Redefine them so we will use them |
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113 // via the gnulib namespace. |
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114 #define fprintf GNULIB_NAMESPACE::fprintf |
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115 #define fwrite GNULIB_NAMESPACE::fwrite |
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116 #define isatty GNULIB_NAMESPACE::isatty |
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117 #define malloc GNULIB_NAMESPACE::malloc |
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118 #define realloc GNULIB_NAMESPACE::realloc |
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119 #endif |
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120 |
2716 | 121 #if ! (defined (FLEX_SCANNER) \ |
122 && defined (YY_FLEX_MAJOR_VERSION) && YY_FLEX_MAJOR_VERSION >= 2 \ | |
123 && defined (YY_FLEX_MINOR_VERSION) && YY_FLEX_MINOR_VERSION >= 5) | |
124 #error lex.l requires flex version 2.5.4 or later | |
125 #endif | |
126 | |
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127 #define YY_EXTRA_TYPE octave_base_lexer * |
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128 #define curr_lexer yyextra |
4753 | 129 |
130 // Arrange to get input via readline. | |
131 | |
132 #ifdef YY_INPUT | |
133 #undef YY_INPUT | |
134 #endif | |
135 #define YY_INPUT(buf, result, max_size) \ | |
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136 result = curr_lexer->fill_flex_buffer (buf, max_size) |
4753 | 137 |
138 // Try to avoid crashing out completely on fatal scanner errors. | |
139 | |
140 #ifdef YY_FATAL_ERROR | |
141 #undef YY_FATAL_ERROR | |
142 #endif | |
143 #define YY_FATAL_ERROR(msg) \ | |
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144 (yyget_extra (yyscanner))->fatal_error (msg) |
4753 | 145 |
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146 #define CMD_OR_OP(PATTERN, TOK, COMPAT) \ |
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147 \ |
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148 do \ |
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149 { \ |
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150 curr_lexer->lexer_debug (PATTERN); \ |
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151 \ |
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152 if (curr_lexer->looks_like_command_arg ()) \ |
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153 { \ |
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154 yyless (0); \ |
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155 curr_lexer->push_start_state (COMMAND_START); \ |
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156 } \ |
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157 else \ |
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158 { \ |
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159 return curr_lexer->handle_op_internal (TOK, false, COMPAT); \ |
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160 } \ |
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161 } \ |
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162 while (0) |
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163 |
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164 #define CMD_OR_COMPUTED_ASSIGN_OP(PATTERN, TOK) \ |
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165 \ |
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166 do \ |
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167 { \ |
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168 curr_lexer->lexer_debug (PATTERN); \ |
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169 \ |
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170 if (curr_lexer->previous_token_may_be_command ()) \ |
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171 { \ |
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172 yyless (0); \ |
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173 curr_lexer->push_start_state (COMMAND_START); \ |
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174 } \ |
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175 else \ |
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176 { \ |
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177 return curr_lexer->handle_incompatible_op (PATTERN, TOK, false); \ |
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178 } \ |
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179 } \ |
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180 while (0) |
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181 |
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182 #define CMD_OR_UNARY_OP(PATTERN, TOK, COMPAT) \ |
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183 \ |
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184 do \ |
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185 { \ |
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186 curr_lexer->lexer_debug (PATTERN); \ |
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187 \ |
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188 if (curr_lexer->previous_token_may_be_command ()) \ |
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189 { \ |
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190 if (curr_lexer->looks_like_command_arg ()) \ |
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191 { \ |
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192 yyless (0); \ |
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193 curr_lexer->push_start_state (COMMAND_START); \ |
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194 } \ |
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195 else \ |
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196 { \ |
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197 return curr_lexer->handle_op_internal (TOK, false, COMPAT); \ |
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198 } \ |
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199 } \ |
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200 else \ |
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201 { \ |
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202 int tok \ |
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203 = (COMPAT \ |
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204 ? curr_lexer->handle_unary_op (TOK) \ |
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205 : curr_lexer->handle_incompatible_unary_op (TOK)); \ |
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206 \ |
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207 if (tok < 0) \ |
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208 { \ |
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209 yyless (0); \ |
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210 curr_lexer->xunput (','); \ |
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211 /* Adjust for comma that was not really in the input stream. */ \ |
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212 curr_lexer->current_input_column--; \ |
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213 } \ |
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214 else \ |
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215 { \ |
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216 return tok; \ |
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217 } \ |
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218 } \ |
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219 } \ |
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220 while (0) |
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221 |
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222 // We can't rely on the trick used elsewhere of sticking ASCII 1 in |
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223 // the input buffer and recognizing it as a special case because ASCII |
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224 // 1 is a valid character for a character string. If we are at the |
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225 // end of the buffer, ask for more input. If we are at the end of the |
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226 // file, deal with it. Otherwise, just keep going with the text from |
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227 // the current buffer. |
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228 #define HANDLE_STRING_CONTINUATION \ |
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229 do \ |
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230 { \ |
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231 curr_lexer->decrement_promptflag (); \ |
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232 curr_lexer->input_line_number++; \ |
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233 curr_lexer->current_input_column = 1; \ |
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234 \ |
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235 if (curr_lexer->is_push_lexer ()) \ |
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236 { \ |
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237 if (curr_lexer->at_end_of_buffer ()) \ |
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238 return -1; \ |
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239 \ |
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240 if (curr_lexer->at_end_of_file ()) \ |
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241 return curr_lexer->handle_end_of_input (); \ |
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242 } \ |
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243 } \ |
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244 while (0) |
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245 |
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246 // When a command argument boundary is detected, push out the |
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247 // current argument being built. This one seems like a good |
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248 // candidate for a function call. |
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249 |
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250 #define COMMAND_ARG_FINISH \ |
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251 do \ |
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252 { \ |
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253 if (curr_lexer->string_text.empty ()) \ |
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254 break; \ |
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255 \ |
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256 int retval = curr_lexer->handle_token (curr_lexer->string_text, \ |
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257 SQ_STRING); \ |
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258 \ |
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259 curr_lexer->string_text = ""; \ |
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260 curr_lexer->command_arg_paren_count = 0; \ |
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261 \ |
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262 yyless (0); \ |
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263 \ |
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264 return retval; \ |
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265 } \ |
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266 while (0) |
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267 |
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268 static bool Vdisplay_tokens = false; |
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269 |
4910 | 270 static unsigned int Vtoken_count = 0; |
271 | |
8535 | 272 // Internal variable for lexer debugging state. |
273 static bool lexer_debug_flag = false; | |
274 | |
146 | 275 // Forward declarations for functions defined at the bottom of this |
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276 // file that are needed inside the lexer actions. |
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277 |
3523 | 278 static std::string strip_trailing_whitespace (char *s); |
1 | 279 |
280 %} | |
281 | |
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282 D [0-9] |
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283 S [ \t] |
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284 NL ((\n)|(\r)|(\r\n)) |
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285 Im [iIjJ] |
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286 CCHAR [#%] |
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287 IDENT ([_$a-zA-Z][_$a-zA-Z0-9]*) |
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288 EXPON ([DdEe][+-]?{D}+) |
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289 NUMBER (({D}+\.?{D}*{EXPON}?)|(\.{D}+{EXPON}?)|(0[xX][0-9a-fA-F]+)) |
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290 |
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291 ANY_EXCEPT_NL [^\r\n] |
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292 ANY_INCLUDING_NL (.|{NL}) |
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293 |
1 | 294 %% |
295 | |
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296 %{ |
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297 // Make script and function files start with a bogus token. This makes |
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298 // the parser go down a special path. |
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299 %} |
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300 |
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301 <INPUT_FILE_START>{ANY_INCLUDING_NL} { |
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302 curr_lexer->lexer_debug ("<INPUT_FILE_START>{ANY_INCLUDING_NL}"); |
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303 |
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304 curr_lexer->xunput (yytext[0]); |
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305 |
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306 // May be reset later if we see "function" or "classdef" appears |
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307 // as the first token. |
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308 curr_lexer->reading_script_file = true; |
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309 |
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310 curr_lexer->pop_start_state (); |
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311 |
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312 return curr_lexer->show_token (INPUT_FILE); |
4238 | 313 } |
314 | |
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315 <INPUT_FILE_START><<EOF>> { |
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316 curr_lexer->lexer_debug ("<INPUT_FILE_START><<EOF>>"); |
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317 |
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318 // May be reset later if we see "function" or "classdef" appears |
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319 // as the first token. |
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320 curr_lexer->reading_script_file = true; |
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321 |
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322 curr_lexer->pop_start_state (); |
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323 |
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324 return curr_lexer->show_token (INPUT_FILE); |
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325 } |
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326 |
968 | 327 %{ |
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328 // Help and other command-style functions. |
968 | 329 %} |
330 | |
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331 %{ |
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332 // Commands can be continued on a second line using the ellipsis. |
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333 // If an argument is in construction, it is completed. |
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334 %} |
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335 |
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336 <COMMAND_START>(\.\.\.){ANY_EXCEPT_NL}*{NL} { |
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337 curr_lexer->lexer_debug ("<COMMAND_START>(\\.\\.\\.){ANY_EXCEPT_NL}*{NL}"); |
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338 |
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339 COMMAND_ARG_FINISH; |
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340 |
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341 curr_lexer->input_line_number++; |
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342 curr_lexer->current_input_column = 1; |
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343 |
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344 HANDLE_STRING_CONTINUATION; |
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345 } |
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346 |
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347 %{ |
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348 // Commands normally end at the end of a line or a semicolon. |
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349 %} |
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350 |
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351 <COMMAND_START>({CCHAR}{ANY_EXCEPT_NL}*)?{NL} { |
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352 curr_lexer->lexer_debug ("<COMMAND_START>({CCHAR}{ANY_EXCEPT_NL}*)?{NL}"); |
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353 |
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354 COMMAND_ARG_FINISH; |
8535 | 355 |
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356 curr_lexer->input_line_number++; |
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357 curr_lexer->current_input_column = 1; |
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358 curr_lexer->looking_for_object_index = false; |
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359 curr_lexer->at_beginning_of_statement = true; |
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360 curr_lexer->pop_start_state (); |
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361 |
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362 return curr_lexer->handle_token ('\n'); |
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363 } |
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364 |
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365 <COMMAND_START>[\,\;] { |
18234 | 366 curr_lexer->lexer_debug ("<COMMAND_START>[\\,\\;]"); |
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367 |
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368 if (yytext[0] != ',' || curr_lexer->command_arg_paren_count == 0) |
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369 { |
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370 COMMAND_ARG_FINISH; |
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371 curr_lexer->looking_for_object_index = false; |
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372 curr_lexer->at_beginning_of_statement = true; |
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373 curr_lexer->pop_start_state (); |
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374 return curr_lexer->handle_token (yytext[0]); |
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375 } |
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376 else |
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377 curr_lexer->string_text += yytext; |
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378 |
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379 curr_lexer->current_input_column += yyleng; |
967 | 380 } |
1 | 381 |
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382 %{ |
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383 // Unbalanced parentheses serve as pseudo-quotes: they are included in |
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384 // the final argument string, but they cause parentheses and quotes to |
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385 // be slurped into that argument as well. |
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386 %} |
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387 |
18234 | 388 <COMMAND_START>[\(\[\{]* { |
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389 curr_lexer->lexer_debug ("<COMMAND_START>[\\(\\[\\{]+"); |
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390 |
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391 curr_lexer->command_arg_paren_count += yyleng; |
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392 curr_lexer->string_text += yytext; |
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393 curr_lexer->current_input_column += yyleng; |
967 | 394 } |
1 | 395 |
18234 | 396 <COMMAND_START>[\)\]\}]* { |
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397 curr_lexer->lexer_debug ("<COMMAND_START>[\\)\\]\\}]+"); |
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398 |
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399 curr_lexer->command_arg_paren_count -= yyleng; |
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400 curr_lexer->string_text += yytext; |
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401 curr_lexer->current_input_column += yyleng; |
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402 } |
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403 |
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404 %{ |
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405 // Handle quoted strings. Quoted strings that are not separated by |
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406 // whitespace from other argument text are combined with that previous |
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407 // text. For instance, |
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408 // |
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409 // command 'text1'"text2" |
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410 // |
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411 // has a single argument text1text2, not two separate arguments. |
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412 // That's why we must test to see if we are in command argument mode |
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413 // when processing the end of a string. |
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414 %} |
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415 |
4208 | 416 <COMMAND_START>[\"\'] { |
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417 curr_lexer->lexer_debug ("<COMMAND_START>[\\\"\\']"); |
8535 | 418 |
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419 if (curr_lexer->command_arg_paren_count == 0) |
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420 curr_lexer->begin_string (yytext[0] == '"' |
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421 ? DQ_STRING_START : SQ_STRING_START); |
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422 else |
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423 curr_lexer->string_text += yytext; |
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424 |
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425 curr_lexer->current_input_column += yyleng; |
975 | 426 } |
427 | |
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428 %{ |
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429 // In standard command argument processing, whitespace separates |
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430 // arguments. In the presence of unbalanced parentheses, it is |
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431 // incorporated into the argument. |
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432 %} |
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433 |
18234 | 434 <COMMAND_START>{S}* { |
435 curr_lexer->lexer_debug ("<COMMAND_START>{S}*"); | |
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436 |
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437 if (curr_lexer->command_arg_paren_count == 0) |
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438 COMMAND_ARG_FINISH; |
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439 else |
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440 curr_lexer->string_text += yytext; |
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441 |
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442 curr_lexer->current_input_column += yyleng; |
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443 } |
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444 |
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445 %{ |
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446 // Everything else is slurped into the command arguments. |
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447 %} |
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448 |
18234 | 449 <COMMAND_START>([\.]|[^#% \t\r\n\.\,\;\"\'\(\[\{\}\]\)]*) { |
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450 curr_lexer->lexer_debug ("<COMMAND_START>([\\.]|[^#% \\t\\r\\n\\.\\,\\;\\\"\\'\\(\\[\\{\\}\\]\\)]*"); |
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451 |
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452 curr_lexer->string_text += yytext; |
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453 curr_lexer->current_input_column += yyleng; |
967 | 454 } |
1 | 455 |
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456 <MATRIX_START>{S}* { |
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457 curr_lexer->lexer_debug ("<MATRIX_START>{S}*"); |
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458 |
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459 curr_lexer->mark_previous_token_trailing_space (); |
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460 } |
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461 |
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462 <MATRIX_START>{NL} { |
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463 curr_lexer->lexer_debug ("<MATRIX_START>{NL}"); |
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464 |
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465 curr_lexer->input_line_number++; |
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466 curr_lexer->current_input_column = 1; |
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467 |
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468 if (curr_lexer->nesting_level.is_paren ()) |
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469 curr_lexer->gripe_matlab_incompatible ("bare newline inside parentheses"); |
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470 else |
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471 { |
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472 int tok = curr_lexer->previous_token_value (); |
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473 |
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474 if (! (tok == ';' || tok == '[' || tok == '{')) |
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475 { |
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476 curr_lexer->xunput (';'); |
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477 // Adjust for semicolon that was not really in the input stream. |
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478 curr_lexer->current_input_column--; |
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479 } |
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480 } |
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481 } |
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482 |
968 | 483 %{ |
1 | 484 // For this and the next two rules, we're looking at ']', and we |
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485 // need to know if the next token is '=' or '=='. |
1 | 486 // |
487 // It would have been so much easier if the delimiters were simply | |
488 // different for the expression on the left hand side of the equals | |
489 // operator. | |
971 | 490 // |
491 // It's also a pain in the ass to decide whether to insert a comma | |
492 // after seeing a ']' character... | |
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493 |
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494 // FIXME: we need to handle block comments here. |
968 | 495 %} |
496 | |
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497 <MATRIX_START>\] { |
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498 curr_lexer->lexer_debug ("<MATRIX_START>\\]"); |
8535 | 499 |
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500 curr_lexer->looking_at_object_index.pop_front (); |
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501 |
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502 curr_lexer->looking_for_object_index = true; |
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503 curr_lexer->at_beginning_of_statement = false; |
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504 |
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505 curr_lexer->handle_close_bracket (']'); |
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506 |
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507 return curr_lexer->count_token (']'); |
4608 | 508 } |
509 | |
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510 %{ |
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511 // FIXME: we need to handle block comments here. |
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512 %} |
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513 |
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514 <MATRIX_START>\} { |
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515 curr_lexer->lexer_debug ("<MATRIX_START>\\}*"); |
8535 | 516 |
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517 curr_lexer->looking_at_object_index.pop_front (); |
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518 |
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519 curr_lexer->looking_for_object_index = true; |
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520 curr_lexer->at_beginning_of_statement = false; |
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521 |
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522 curr_lexer->handle_close_bracket ('}'); |
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523 |
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524 return curr_lexer->count_token ('}'); |
967 | 525 } |
1 | 526 |
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527 \[ { |
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528 curr_lexer->lexer_debug ("\\["); |
8535 | 529 |
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530 bool unput_comma = false; |
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531 |
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532 if (curr_lexer->whitespace_is_significant () |
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533 && curr_lexer->space_follows_previous_token ()) |
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534 { |
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535 int tok = curr_lexer->previous_token_value (); |
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536 |
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537 if (! (tok == '[' || tok == '{' |
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538 || curr_lexer->previous_token_is_binop ())) |
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539 unput_comma = true; |
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540 } |
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541 |
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542 if (unput_comma) |
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543 { |
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544 yyless (0); |
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545 curr_lexer->xunput (','); |
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546 // Adjust for comma that was not really in the input stream. |
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547 curr_lexer->current_input_column--; |
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548 } |
5615 | 549 else |
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550 { |
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551 curr_lexer->nesting_level.bracket (); |
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552 |
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553 curr_lexer->looking_at_object_index.push_front (false); |
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554 |
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555 curr_lexer->current_input_column += yyleng; |
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556 curr_lexer->looking_for_object_index = false; |
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557 curr_lexer->at_beginning_of_statement = false; |
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558 |
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559 if (curr_lexer->defining_func |
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560 && ! curr_lexer->parsed_function_name.top ()) |
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561 curr_lexer->looking_at_return_list = true; |
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562 else |
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563 curr_lexer->looking_at_matrix_or_assign_lhs = true; |
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564 |
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565 curr_lexer->decrement_promptflag (); |
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566 |
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567 curr_lexer->bracketflag++; |
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568 |
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569 curr_lexer->push_start_state (MATRIX_START); |
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570 |
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571 return curr_lexer->count_token ('['); |
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572 } |
967 | 573 } |
1 | 574 |
968 | 575 \] { |
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576 curr_lexer->lexer_debug ("\\]"); |
8535 | 577 |
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578 curr_lexer->nesting_level.remove (); |
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579 |
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580 curr_lexer->looking_at_object_index.pop_front (); |
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581 |
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582 curr_lexer->looking_for_object_index = true; |
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583 curr_lexer->at_beginning_of_statement = false; |
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584 |
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585 return curr_lexer->handle_token (']'); |
968 | 586 } |
587 | |
588 %{ | |
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589 // Gobble comments. |
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590 %} |
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591 |
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592 %{ |
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593 // Start of a block comment. If the comment marker appears immediately |
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594 // after a block of full-line comments, finish the full line comment |
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595 // block. |
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596 %} |
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597 |
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598 ^{S}*{CCHAR}\{{S}*{NL} { |
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599 curr_lexer->lexer_debug ("^{S}*{CCHAR}\\{{S}*{NL}"); |
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600 |
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601 yyless (0); |
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602 |
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603 if (curr_lexer->start_state () == LINE_COMMENT_START) |
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604 { |
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605 if (! curr_lexer->comment_text.empty ()) |
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606 curr_lexer->finish_comment (octave_comment_elt::full_line); |
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607 |
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608 curr_lexer->pop_start_state (); |
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609 } |
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610 |
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611 curr_lexer->decrement_promptflag (); |
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612 |
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613 curr_lexer->push_start_state (BLOCK_COMMENT_START); |
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614 |
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615 } |
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616 |
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617 <BLOCK_COMMENT_START>^{S}*{CCHAR}\{{S}*{NL} { |
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618 curr_lexer->lexer_debug ("<BLOCK_COMMENT_START>^{S}*{CCHAR}\\{{S}*{NL}"); |
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619 |
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620 curr_lexer->input_line_number++; |
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621 curr_lexer->current_input_column = 1; |
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622 |
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623 if (curr_lexer->block_comment_nesting_level) |
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624 curr_lexer->comment_text = "\n"; |
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625 |
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626 curr_lexer->block_comment_nesting_level++; |
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627 } |
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628 |
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629 %{ |
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630 // End of a block comment. If this block comment is nested inside |
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631 // another, wait for the outermost block comment block to be closed |
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632 // before storing the comment. |
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633 %} |
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634 |
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635 <BLOCK_COMMENT_START>^{S}*{CCHAR}\}{S}*{NL} { |
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636 curr_lexer->lexer_debug ("<BLOCK_COMMENT_START>^{S}*{CCHAR}\\}{S}*{NL}"); |
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637 |
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638 curr_lexer->input_line_number++; |
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639 curr_lexer->current_input_column = 1; |
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640 |
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641 if (curr_lexer->block_comment_nesting_level > 1) |
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642 curr_lexer->comment_text = "\n"; |
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643 else |
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644 curr_lexer->finish_comment (octave_comment_elt::block); |
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645 |
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646 curr_lexer->block_comment_nesting_level--; |
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647 |
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648 if (curr_lexer->block_comment_nesting_level == 0) |
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649 { |
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650 curr_lexer->increment_promptflag (); |
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651 |
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|
652 curr_lexer->pop_start_state (); |
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653 } |
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654 } |
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655 |
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656 %{ |
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657 // Body of a block comment. |
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658 %} |
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659 |
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660 <BLOCK_COMMENT_START>{ANY_EXCEPT_NL}*{NL} { |
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661 curr_lexer->lexer_debug ("<BLOCK_COMMENT_START>{ANY_EXCEPT_NL}*{NL}"); |
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662 |
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663 curr_lexer->input_line_number++; |
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664 curr_lexer->current_input_column = 1; |
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665 curr_lexer->comment_text += yytext; |
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666 } |
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|
667 |
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668 %{ |
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669 // Full-line or end-of-line comment. |
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670 %} |
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671 |
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672 {S}*{CCHAR}{ANY_EXCEPT_NL}*{NL} { |
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673 curr_lexer->lexer_debug ("{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL}"); |
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|
674 |
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675 curr_lexer->push_start_state (LINE_COMMENT_START); |
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676 yyless (0); |
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|
677 } |
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|
678 |
18311
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|
679 <LINE_COMMENT_START>{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL} { |
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|
680 curr_lexer->lexer_debug ("<LINE_COMMENT_START>{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL}"); |
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|
681 |
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|
682 bool full_line_comment = curr_lexer->current_input_column == 1; |
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683 curr_lexer->input_line_number++; |
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684 curr_lexer->current_input_column = 1; |
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|
685 |
16255
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|
686 bool have_space = false; |
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687 size_t len = yyleng; |
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688 size_t i = 0; |
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|
689 while (i < len) |
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|
690 { |
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changeset
|
691 char c = yytext[i]; |
16255
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|
692 if (c == ' ' || c == '\t') |
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16253
diff
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|
693 { |
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|
694 have_space = true; |
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|
695 i++; |
12bf6a3f8c45
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|
696 } |
12bf6a3f8c45
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|
697 else |
12bf6a3f8c45
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changeset
|
698 break; |
12bf6a3f8c45
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|
699 } |
12bf6a3f8c45
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|
700 |
16363
d16c255299c0
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|
701 size_t num_comment_chars = 0; |
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|
702 |
16255
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|
703 while (i < len) |
12bf6a3f8c45
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diff
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|
704 { |
12bf6a3f8c45
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|
705 char c = yytext[i]; |
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|
706 if (c == '#' || c == '%') |
16363
d16c255299c0
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|
707 { |
d16c255299c0
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|
708 num_comment_chars++; |
d16c255299c0
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|
709 i++; |
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|
710 } |
16228
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|
711 else |
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|
712 break; |
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|
713 } |
16363
d16c255299c0
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|
714 |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
715 curr_lexer->comment_text += &yytext[i]; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
716 |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
717 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
|
718 { |
17882
cf3f828f401c
only allow [%#]{ as block comment start (bug #40513)
John W. Eaton <jwe@octave.org>
parents:
17861
diff
changeset
|
719 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
|
720 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
721 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
|
722 |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
723 while (i < len) |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
724 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
725 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
|
726 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
|
727 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
728 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
|
729 break; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
730 } |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
731 } |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
732 |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
733 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
|
734 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
735 yyless (0); |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
736 |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
737 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
|
738 |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
739 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
|
740 } |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
741 } |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
742 } |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
743 else |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
744 { |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
745 if (have_space) |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
746 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
|
747 |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
748 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
|
749 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
750 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
|
751 |
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
John W. Eaton <jwe@octave.org>
parents:
16334
diff
changeset
|
752 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
|
753 curr_lexer->input_line_number--; |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
754 } |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
755 } |
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 %{ |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
758 // End of a block of full-line comments. |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
759 %} |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
760 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
761 <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
|
762 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
|
763 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
764 curr_lexer->xunput (yytext[0]); |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
765 |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
766 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
|
767 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
768 curr_lexer->pop_start_state (); |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
769 } |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
770 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
771 %{ |
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
|
772 // 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
|
773 %} |
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
|
774 |
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
|
775 <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
|
776 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
|
777 |
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
|
778 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
|
779 |
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
|
780 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
|
781 } |
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
|
782 |
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
|
783 %{ |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
784 // Double-quoted character strings. |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
785 %} |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
786 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
787 <DQ_STRING_START>\"\" { |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
788 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
|
789 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
790 curr_lexer->current_input_column += yyleng; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
791 curr_lexer->string_text += '"'; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
792 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
793 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
794 <DQ_STRING_START>\" { |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
795 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
|
796 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
797 curr_lexer->current_input_column++; |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
798 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
799 curr_lexer->pop_start_state (); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
800 |
18224
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
801 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
|
802 { |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
803 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
|
804 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
|
805 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
806 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
|
807 curr_lexer->string_text, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
808 curr_lexer->string_line, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
809 curr_lexer->string_column)); |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
810 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
811 curr_lexer->string_text = ""; |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
812 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
813 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
|
814 } |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
815 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
816 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
817 <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
|
818 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
|
819 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
820 curr_lexer->current_input_column += yyleng; |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
821 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
822 int result; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
823 sscanf (yytext+1, "%o", &result); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
824 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
825 if (result > 0xff) |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
826 error ("invalid octal escape sequence in character string"); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
827 else |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
828 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
|
829 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
830 |
17244
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
831 <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
|
832 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
|
833 |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
834 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
|
835 |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
836 int result; |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
837 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
|
838 |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
839 // 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
|
840 // 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
|
841 // 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
|
842 // 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
|
843 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
|
844 } |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
845 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
846 <DQ_STRING_START>"\\a" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
847 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
|
848 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
849 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
|
850 curr_lexer->string_text += '\a'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
851 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
852 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
853 <DQ_STRING_START>"\\b" { |
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>\"\\\\b\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
855 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
856 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
|
857 curr_lexer->string_text += '\b'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
858 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
859 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
860 <DQ_STRING_START>"\\f" { |
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>\"\\\\f\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
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 += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
864 curr_lexer->string_text += '\f'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
865 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
866 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
867 <DQ_STRING_START>"\\n" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
868 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
|
869 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
870 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
|
871 curr_lexer->string_text += '\n'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
872 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
873 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
874 <DQ_STRING_START>"\\r" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
875 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
|
876 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
877 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
|
878 curr_lexer->string_text += '\r'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
879 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
880 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
881 <DQ_STRING_START>"\\t" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
882 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
|
883 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
884 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
|
885 curr_lexer->string_text += '\t'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
886 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
887 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
888 <DQ_STRING_START>"\\v" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
889 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
|
890 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
891 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
|
892 curr_lexer->string_text += '\v'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
893 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
894 |
18428
4d2e15abe5e7
Disallow comments after continuation in double-quoted strings (bug #41415).
Stefan Mahr <dac922@gmx.de>
parents:
18319
diff
changeset
|
895 <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
|
896 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
|
897 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
898 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
|
899 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
900 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
|
901 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
902 if (nm.empty ()) |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
903 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
|
904 else |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
905 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
|
906 "%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
|
907 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
|
908 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
909 HANDLE_STRING_CONTINUATION; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
910 } |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
911 |
18428
4d2e15abe5e7
Disallow comments after continuation in double-quoted strings (bug #41415).
Stefan Mahr <dac922@gmx.de>
parents:
18319
diff
changeset
|
912 <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
|
913 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
|
914 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
915 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
|
916 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
917 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
|
918 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
919 if (nm.empty ()) |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
920 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
|
921 else |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
922 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
|
923 "%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
|
924 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
|
925 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
926 HANDLE_STRING_CONTINUATION; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
927 } |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
928 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
929 <DQ_STRING_START>\\{NL} { |
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>\\\\{NL}"); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
931 |
16914
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
932 HANDLE_STRING_CONTINUATION; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
933 } |
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 <DQ_STRING_START>\\. { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
936 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
|
937 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
938 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
|
939 curr_lexer->string_text += yytext[1]; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
940 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
941 |
16914
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
942 <DQ_STRING_START>\. { |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
943 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
|
944 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
945 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
|
946 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
|
947 } |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
948 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
949 <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
|
950 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
|
951 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
952 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
|
953 curr_lexer->string_text += yytext; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
954 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
955 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
956 <DQ_STRING_START>{NL} { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
957 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
|
958 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
959 curr_lexer->input_line_number++; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
960 curr_lexer->current_input_column = 1; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
961 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
962 error ("unterminated character string constant"); |
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 return LEXICAL_ERROR; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
965 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
966 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
967 %{ |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
968 // Single-quoted character strings. |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
969 %} |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
970 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
971 <SQ_STRING_START>\'\' { |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
972 curr_lexer->lexer_debug ("<SQ_STRING_START>\\'\\'"); |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
973 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
974 curr_lexer->current_input_column += yyleng; |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
975 curr_lexer->string_text += '\''; |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
976 } |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
977 |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
978 <SQ_STRING_START>\' { |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
979 curr_lexer->lexer_debug ("<SQ_STRING_START>\\'"); |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
980 |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
981 curr_lexer->current_input_column++; |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
982 |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
983 curr_lexer->pop_start_state (); |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
984 |
18224
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
985 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
|
986 { |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
987 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
|
988 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
|
989 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
990 curr_lexer->push_token (new token (SQ_STRING, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
991 curr_lexer->string_text, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
992 curr_lexer->string_line, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
993 curr_lexer->string_column)); |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
994 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
995 curr_lexer->string_text = ""; |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
996 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
997 return curr_lexer->count_token_internal (SQ_STRING); |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
998 } |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
999 } |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1000 |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1001 <SQ_STRING_START>[^\'\n\r]+ { |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1002 curr_lexer->lexer_debug ("<SQ_STRING_START>[^\\'\\n\\r]+"); |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1003 |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1004 curr_lexer->current_input_column += yyleng; |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1005 curr_lexer->string_text += yytext; |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1006 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1007 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1008 <SQ_STRING_START>{NL} { |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1009 curr_lexer->lexer_debug ("<SQ_STRING_START>{NL}"); |
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 curr_lexer->input_line_number++; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1012 curr_lexer->current_input_column = 1; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1013 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1014 error ("unterminated character string constant"); |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1015 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1016 return LEXICAL_ERROR; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1017 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1018 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1019 %{ |
968 | 1020 // Imaginary numbers. |
1021 %} | |
1022 | |
1023 {NUMBER}{Im} { | |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1024 curr_lexer->lexer_debug ("{NUMBER}{Im}"); |
8535 | 1025 |
16361
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1026 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
|
1027 && curr_lexer->space_follows_previous_token ()) |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1028 { |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1029 yyless (0); |
16361
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1030 curr_lexer->push_start_state (COMMAND_START); |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1031 } |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1032 else |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1033 { |
16361
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1034 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
|
1035 |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1036 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
|
1037 && 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
|
1038 && ! (tok == '[' || tok == '{' |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1039 || 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
|
1040 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1041 yyless (0); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1042 unput (','); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1043 } |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1044 else |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1045 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1046 curr_lexer->handle_number (); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1047 return curr_lexer->count_token_internal (IMAG_NUM); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1048 } |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1049 } |
968 | 1050 } |
1051 | |
1052 %{ | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
1053 // Real numbers. Don't grab the '.' part of a dot operator as part of |
968 | 1054 // the constant. |
1055 %} | |
1056 | |
8535 | 1057 {D}+/\.[\*/\\^\'] | |
968 | 1058 {NUMBER} { |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1059 curr_lexer->lexer_debug ("{D}+/\\.[\\*/\\\\^\\']|{NUMBER}"); |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1060 |
16361
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1061 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
|
1062 && 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
|
1063 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1064 yyless (0); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1065 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
|
1066 } |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1067 else |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1068 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1069 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
|
1070 |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1071 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
|
1072 && 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
|
1073 && ! (tok == '[' || tok == '{' |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1074 || 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
|
1075 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1076 yyless (0); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1077 unput (','); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1078 } |
e1dcd834751f
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1079 else |
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|
1080 { |
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|
1081 curr_lexer->handle_number (); |
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|
1082 return curr_lexer->count_token_internal (NUM); |
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1083 } |
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|
1084 } |
968 | 1085 } |
1086 | |
1087 %{ | |
1088 // Eat whitespace. Whitespace inside matrix constants is handled by | |
4208 | 1089 // the <MATRIX_START> start state code above. |
968 | 1090 %} |
1091 | |
16363
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|
1092 {S}+ { |
16110
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|
1093 curr_lexer->current_input_column += yyleng; |
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|
1094 |
12bf6a3f8c45
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|
1095 curr_lexer->mark_previous_token_trailing_space (); |
967 | 1096 } |
1097 | |
968 | 1098 %{ |
17247
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1099 // Continuation lines. Allow arbitrary text after continuations. |
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1100 %} |
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1101 |
18311
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|
1102 \.\.\.{ANY_EXCEPT_NL}*{NL} { |
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|
1103 curr_lexer->lexer_debug ("\\.\\.\\.{ANY_EXCEPT_NL}*{NL}"); |
17247
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1104 |
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|
1105 curr_lexer->handle_continuation (); |
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1106 } |
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1107 |
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1108 %{ |
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|
1109 // Deprecated C preprocessor style continuation markers. |
968 | 1110 %} |
1111 | |
17246
8be8a65d3ca8
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|
1112 \\{S}*{NL} | |
18311
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1113 \\{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL} { |
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|
1114 curr_lexer->lexer_debug ("\\\\{S}*{NL}|\\\\{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL}"); |
17247
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1115 |
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|
1116 static const char *msg = "using continuation marker \\ outside of double quoted strings is deprecated and will be removed in a future version of Octave"; |
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1117 |
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1118 std::string nm = curr_lexer->fcn_file_full_name; |
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1119 |
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|
1120 if (nm.empty ()) |
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|
1121 warning_with_id ("Octave:deprecated-syntax", "%s", msg); |
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1122 else |
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|
1123 warning_with_id ("Octave:deprecated-syntax", |
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|
1124 "%s; near line %d of file '%s'", msg, |
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|
1125 curr_lexer->input_line_number, nm.c_str ()); |
17343
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|
1126 |
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|
1127 curr_lexer->handle_continuation (); |
967 | 1128 } |
1 | 1129 |
968 | 1130 %{ |
1131 // End of file. | |
1132 %} | |
1133 | |
967 | 1134 <<EOF>> { |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
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diff
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|
1135 return curr_lexer->handle_end_of_input (); |
967 | 1136 } |
1 | 1137 |
968 | 1138 %{ |
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|
1139 // Identifiers. |
968 | 1140 %} |
1141 | |
16257
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|
1142 {IDENT} { |
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|
1143 curr_lexer->lexer_debug ("{IDENT}"); |
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|
1144 |
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1145 int tok = curr_lexer->previous_token_value (); |
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1146 |
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|
1147 if (curr_lexer->whitespace_is_significant () |
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|
1148 && curr_lexer->space_follows_previous_token () |
16259
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|
1149 && ! (tok == '[' || tok == '{' |
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diff
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|
1150 || curr_lexer->previous_token_is_binop ())) |
16257
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|
1151 { |
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|
1152 yyless (0); |
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|
1153 unput (','); |
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|
1154 } |
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|
1155 else |
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|
1156 { |
16263
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parents:
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|
1157 if (! curr_lexer->looking_at_decl_list |
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parents:
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|
1158 && curr_lexer->previous_token_may_be_command ()) |
16257
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|
1159 { |
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|
1160 yyless (0); |
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diff
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|
1161 curr_lexer->push_start_state (COMMAND_START); |
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|
1162 } |
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|
1163 else |
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|
1164 { |
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|
1165 int id_tok = curr_lexer->handle_identifier (); |
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|
1166 |
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|
1167 if (id_tok >= 0) |
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|
1168 return curr_lexer->count_token_internal (id_tok); |
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|
1169 } |
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|
1170 } |
967 | 1171 } |
1 | 1172 |
968 | 1173 %{ |
11586
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|
1174 // Superclass method identifiers. |
9476 | 1175 %} |
1176 | |
16261
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|
1177 {IDENT}@{IDENT} | |
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|
1178 {IDENT}@{IDENT}.{IDENT} { |
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diff
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|
1179 curr_lexer->lexer_debug ("{IDENT}@{IDENT}|{IDENT}@{IDENT}.{IDENT}"); |
9476 | 1180 |
16680
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|
1181 if (curr_lexer->previous_token_may_be_command ()) |
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|
1182 { |
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|
1183 yyless (0); |
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|
1184 curr_lexer->push_start_state (COMMAND_START); |
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|
1185 } |
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1186 else |
9476 | 1187 { |
16680
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1188 int id_tok = curr_lexer->handle_superclass_identifier (); |
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1189 |
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1190 if (id_tok >= 0) |
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1191 { |
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1192 curr_lexer->looking_for_object_index = true; |
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1193 |
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1194 return curr_lexer->count_token_internal (SUPERCLASSREF); |
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|
1195 } |
9476 | 1196 } |
1197 } | |
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1198 |
9476 | 1199 %{ |
1200 // Metaclass query | |
11586
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1201 %} |
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1202 |
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|
1203 \?{IDENT} | |
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1204 \?{IDENT}\.{IDENT} { |
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|
1205 curr_lexer->lexer_debug ("\\?{IDENT}|\\?{IDENT}\\.{IDENT}"); |
11586
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1206 |
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1207 if (curr_lexer->previous_token_may_be_command () |
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1208 && curr_lexer->space_follows_previous_token ()) |
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1209 { |
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1210 yyless (0); |
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1211 curr_lexer->push_start_state (COMMAND_START); |
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1212 } |
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1213 else |
9476 | 1214 { |
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1215 int id_tok = curr_lexer->handle_meta_identifier (); |
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1216 |
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1217 if (id_tok >= 0) |
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1218 { |
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1219 curr_lexer->looking_for_object_index = true; |
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1220 |
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1221 return curr_lexer->count_token_internal (METAQUERY); |
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1222 } |
9476 | 1223 } |
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1224 } |
9476 | 1225 |
4930 | 1226 "@" { |
18492
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|
1227 curr_lexer->lexer_debug ("@"); |
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1228 |
16334
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1229 if (curr_lexer->previous_token_may_be_command () |
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changeset
|
1230 && curr_lexer->space_follows_previous_token ()) |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1231 { |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1232 yyless (0); |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1233 curr_lexer->push_start_state (COMMAND_START); |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1234 } |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1235 else |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1236 { |
18492
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1237 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
|
1238 |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1239 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
|
1240 && 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
|
1241 && ! (tok == '[' || tok == '{' |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1242 || 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
|
1243 { |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1244 yyless (0); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1245 unput (','); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1246 } |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1247 else |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1248 { |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1249 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
|
1250 |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1251 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
|
1252 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
|
1253 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
|
1254 |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1255 return curr_lexer->count_token ('@'); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
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diff
changeset
|
1256 } |
16334
06aa4c0f2018
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John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1257 } |
4342 | 1258 } |
1259 | |
1260 %{ | |
968 | 1261 // A new line character. New line characters inside matrix constants |
4208 | 1262 // are handled by the <MATRIX_START> start state code above. If closest |
985 | 1263 // nesting is inside parentheses, don't return a row separator. |
968 | 1264 %} |
1265 | |
967 | 1266 {NL} { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1267 curr_lexer->lexer_debug ("{NL}"); |
8535 | 1268 |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1269 curr_lexer->input_line_number++; |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1270 curr_lexer->current_input_column = 1; |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1271 |
16309
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1272 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
|
1273 { |
e608de76742c
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John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1274 curr_lexer->at_beginning_of_statement = false; |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1275 curr_lexer->gripe_matlab_incompatible |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1276 ("bare newline inside parentheses"); |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1277 } |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1278 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
|
1279 || 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
|
1280 { |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1281 curr_lexer->at_beginning_of_statement = true; |
16229
7b7b1e4968e8
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John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1282 return curr_lexer->count_token ('\n'); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
1283 } |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
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parents:
16106
diff
changeset
|
1284 else if (curr_lexer->nesting_level.is_bracket_or_brace ()) |
985 | 1285 return LEXICAL_ERROR; |
967 | 1286 } |
1 | 1287 |
968 | 1288 %{ |
1289 // 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
|
1290 // operator. |
968 | 1291 %} |
1292 | |
967 | 1293 "'" { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1294 curr_lexer->lexer_debug ("'"); |
8535 | 1295 |
16275
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|
1296 if (curr_lexer->previous_token_may_be_command () |
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|
1297 && curr_lexer->space_follows_previous_token ()) |
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|
1298 { |
16898
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diff
changeset
|
1299 curr_lexer->current_input_column++; |
16275
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diff
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|
1300 curr_lexer->push_start_state (COMMAND_START); |
16898
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parents:
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diff
changeset
|
1301 curr_lexer->begin_string (SQ_STRING_START); |
16275
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diff
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|
1302 } |
16681
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parents:
16680
diff
changeset
|
1303 else if (curr_lexer->at_beginning_of_statement) |
d3619d4d267c
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1304 { |
d3619d4d267c
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parents:
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diff
changeset
|
1305 curr_lexer->current_input_column++; |
16898
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parents:
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diff
changeset
|
1306 curr_lexer->begin_string (SQ_STRING_START); |
16681
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|
1307 } |
16275
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|
1308 else |
967 | 1309 { |
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diff
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|
1310 int tok = curr_lexer->previous_token_value (); |
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diff
changeset
|
1311 |
dd7de0345124
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diff
changeset
|
1312 if (curr_lexer->whitespace_is_significant ()) |
16257
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diff
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|
1313 { |
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changeset
|
1314 if (curr_lexer->space_follows_previous_token ()) |
16257
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|
1315 { |
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|
1316 if (tok == '[' || tok == '{' |
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|
1317 || curr_lexer->previous_token_is_binop ()) |
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|
1318 { |
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parents:
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|
1319 curr_lexer->current_input_column++; |
16898
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rewrite string parsing to avoid unlimited lookahead
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|
1320 curr_lexer->begin_string (SQ_STRING_START); |
16275
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1321 } |
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|
1322 else |
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|
1323 { |
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|
1324 yyless (0); |
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parents:
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diff
changeset
|
1325 curr_lexer->xunput (','); |
16281
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John W. Eaton <jwe@octave.org>
parents:
16277
diff
changeset
|
1326 // Adjust for comma that was not really in the input stream. |
1bbc2fc552cf
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parents:
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|
1327 curr_lexer->current_input_column--; |
16275
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1328 } |
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1329 } |
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1330 else |
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|
1331 { |
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1332 if (tok == '[' || tok == '{' |
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|
1333 || curr_lexer->previous_token_is_binop () |
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1334 || curr_lexer->previous_token_is_keyword ()) |
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1335 { |
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|
1336 curr_lexer->current_input_column++; |
16898
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changeset
|
1337 curr_lexer->begin_string (SQ_STRING_START); |
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1338 } |
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1339 else |
16284
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|
1340 return curr_lexer->count_token (HERMITIAN); |
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1341 } |
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1342 } |
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1343 else |
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1344 { |
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1345 if (! tok || tok == '[' || tok == '{' || tok == '(' |
16267
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parents:
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1346 || curr_lexer->previous_token_is_binop () |
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1347 || curr_lexer->previous_token_is_keyword ()) |
16257
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1348 { |
16261
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parents:
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1349 curr_lexer->current_input_column++; |
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1350 curr_lexer->begin_string (SQ_STRING_START); |
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1351 } |
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1352 else |
16284
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changeset
|
1353 return curr_lexer->count_token (HERMITIAN); |
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|
1354 } |
967 | 1355 } |
1356 } | |
1 | 1357 |
968 | 1358 %{ |
971 | 1359 // Double quotes always begin strings. |
1360 %} | |
1361 | |
973 | 1362 \" { |
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changeset
|
1363 curr_lexer->lexer_debug ("\\\""); |
8535 | 1364 |
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1365 if (curr_lexer->previous_token_may_be_command () |
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1366 && curr_lexer->space_follows_previous_token ()) |
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1367 { |
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1368 curr_lexer->current_input_column++; |
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1369 curr_lexer->push_start_state (COMMAND_START); |
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1370 curr_lexer->begin_string (DQ_STRING_START); |
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1371 } |
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1372 else |
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1373 { |
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1374 int tok = curr_lexer->previous_token_value (); |
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1375 |
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1376 if (curr_lexer->whitespace_is_significant ()) |
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1377 { |
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1378 if (curr_lexer->space_follows_previous_token ()) |
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1379 { |
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1380 if (tok == '[' || tok == '{' |
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1381 || curr_lexer->previous_token_is_binop ()) |
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1382 { |
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1383 curr_lexer->current_input_column++; |
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1384 curr_lexer->begin_string (DQ_STRING_START); |
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1385 } |
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1386 else |
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1387 { |
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1388 yyless (0); |
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1389 curr_lexer->xunput (','); |
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1390 // Adjust for comma that was not really in the input stream. |
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1391 curr_lexer->current_input_column--; |
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1392 } |
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1393 } |
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1394 else |
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1395 { |
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1396 curr_lexer->current_input_column++; |
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1397 curr_lexer->begin_string (DQ_STRING_START); |
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1398 } |
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1399 } |
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1400 else |
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1401 { |
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1402 curr_lexer->current_input_column++; |
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1403 curr_lexer->begin_string (DQ_STRING_START); |
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1404 } |
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1405 } |
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1406 } |
971 | 1407 |
1408 %{ | |
968 | 1409 // Other operators. |
1410 %} | |
1411 | |
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1412 ":" { CMD_OR_OP (":", ':', true); } |
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1413 ".+" { CMD_OR_OP (".+", EPLUS, false); } |
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1414 ".-" { CMD_OR_OP (".-", EMINUS, false); } |
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1415 ".*" { CMD_OR_OP (".*", EMUL, true); } |
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1416 "./" { CMD_OR_OP ("./", EDIV, true); } |
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1417 ".\\" { CMD_OR_OP (".\\", ELEFTDIV, true); } |
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1418 ".^" { CMD_OR_OP (".^", EPOW, true); } |
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1419 ".**" { CMD_OR_OP (".**", EPOW, false); } |
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1420 "<=" { CMD_OR_OP ("<=", EXPR_LE, true); } |
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1421 "==" { CMD_OR_OP ("==", EXPR_EQ, true); } |
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1422 "~=" { CMD_OR_OP ("~=", EXPR_NE, true); } |
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1423 "!=" { CMD_OR_OP ("!=", EXPR_NE, false); } |
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1424 ">=" { CMD_OR_OP (">=", EXPR_GE, true); } |
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1425 "&" { CMD_OR_OP ("&", EXPR_AND, true); } |
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1426 "|" { CMD_OR_OP ("|", EXPR_OR, true); } |
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1427 "<" { CMD_OR_OP ("<", EXPR_LT, true); } |
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1428 ">" { CMD_OR_OP (">", EXPR_GT, true); } |
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1429 "*" { CMD_OR_OP ("*", '*', true); } |
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1430 "/" { CMD_OR_OP ("/", '/', true); } |
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1431 |
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1432 %{ |
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1433 // In Matlab, '\' may also trigger command syntax. |
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1434 %} |
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1435 |
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1436 "\\" { return curr_lexer->handle_op ("\\", LEFTDIV); } |
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1437 |
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1438 "^" { CMD_OR_OP ("^", POW, true); } |
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1439 "**" { CMD_OR_OP ("**", POW, false); } |
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1440 "&&" { CMD_OR_OP ("&&", EXPR_AND_AND, true); } |
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1441 "||" { CMD_OR_OP ("||", EXPR_OR_OR, true); } |
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1442 "<<" { CMD_OR_OP ("<<", LSHIFT, false); } |
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1443 ">>" { CMD_OR_OP (">>", RSHIFT, false); } |
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1444 |
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1445 ";" { |
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1446 bool at_beginning_of_statement |
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1447 = (! (curr_lexer->whitespace_is_significant () |
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1448 || curr_lexer->looking_at_object_index.front ())); |
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1449 |
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1450 return curr_lexer->handle_op (";", ';', at_beginning_of_statement); |
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1451 } |
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1452 |
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1453 "+" { CMD_OR_UNARY_OP ("+", '+', true); } |
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1454 "-" { CMD_OR_UNARY_OP ("-", '-', true); } |
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1455 |
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1456 "~" { CMD_OR_UNARY_OP ("~", EXPR_NOT, true); } |
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1457 "!" { CMD_OR_UNARY_OP ("!", EXPR_NOT, false); } |
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1458 |
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1459 "," { |
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1460 bool at_beginning_of_statement |
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1461 = (! (curr_lexer->whitespace_is_significant () |
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1462 || curr_lexer->looking_at_object_index.front ())); |
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1463 |
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1464 return curr_lexer->handle_op (",", ',', at_beginning_of_statement); |
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1465 } |
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1466 |
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1467 ".'" { |
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1468 return curr_lexer->handle_op (".'", TRANSPOSE, false); |
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1469 } |
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1470 |
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1471 "++" { CMD_OR_UNARY_OP ("++", PLUS_PLUS, false); } |
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1472 "--" { CMD_OR_UNARY_OP ("--", MINUS_MINUS, false); } |
1 | 1473 |
967 | 1474 "(" { |
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1475 curr_lexer->lexer_debug ("("); |
8535 | 1476 |
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1477 bool unput_comma = false; |
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1478 |
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1479 if (curr_lexer->whitespace_is_significant () |
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1480 && curr_lexer->space_follows_previous_token ()) |
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1481 { |
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1482 int tok = curr_lexer->previous_token_value (); |
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1483 |
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1484 if (! (tok == '[' || tok == '{' |
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1485 || curr_lexer->previous_token_is_binop ())) |
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1486 unput_comma = true; |
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1487 } |
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1488 |
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1489 if (unput_comma) |
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1490 { |
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1491 yyless (0); |
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1492 curr_lexer->xunput (','); |
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1493 // Adjust for comma that was not really in the input stream. |
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1494 curr_lexer->current_input_column--; |
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1495 } |
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1496 else |
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1497 { |
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1498 // If we are looking for an object index, then push TRUE for |
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1499 // looking_at_object_index. Otherwise, just push whatever state |
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1500 // is current (so that we can pop it off the stack when we find |
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1501 // the matching close paren). |
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1502 |
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1503 curr_lexer->looking_at_object_index.push_front |
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1504 (curr_lexer->looking_for_object_index); |
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1505 |
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1506 curr_lexer->looking_at_indirect_ref = false; |
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1507 curr_lexer->looking_for_object_index = false; |
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1508 curr_lexer->at_beginning_of_statement = false; |
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1509 |
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1510 curr_lexer->nesting_level.paren (); |
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1511 curr_lexer->decrement_promptflag (); |
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1512 |
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1513 return curr_lexer->handle_token ('('); |
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1514 } |
967 | 1515 } |
1516 | |
1517 ")" { | |
16229
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1518 curr_lexer->lexer_debug (")"); |
8535 | 1519 |
16110
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1520 curr_lexer->nesting_level.remove (); |
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1521 curr_lexer->current_input_column++; |
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1522 |
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1523 curr_lexer->looking_at_object_index.pop_front (); |
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1524 |
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1525 curr_lexer->looking_for_object_index = true; |
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1526 curr_lexer->at_beginning_of_statement = false; |
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1527 |
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1528 if (curr_lexer->looking_at_anon_fcn_args) |
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1529 { |
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1530 curr_lexer->looking_at_anon_fcn_args = false; |
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1531 curr_lexer->nesting_level.anon_fcn_body (); |
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1532 } |
13237
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1533 |
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1534 return curr_lexer->count_token (')'); |
967 | 1535 } |
1536 | |
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1537 "." { |
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1538 curr_lexer->lexer_debug ("."); |
8745
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1539 |
16325
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1540 if (curr_lexer->previous_token_may_be_command () |
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1541 && curr_lexer->space_follows_previous_token ()) |
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1542 { |
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1543 yyless (0); |
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1544 curr_lexer->push_start_state (COMMAND_START); |
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1545 } |
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1546 else |
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1547 { |
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1548 curr_lexer->looking_for_object_index = false; |
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1549 curr_lexer->at_beginning_of_statement = false; |
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1550 |
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1551 return curr_lexer->handle_token ('.'); |
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1552 } |
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1553 } |
8535 | 1554 |
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1555 %{ |
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1556 // = and op= operators. |
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1557 %} |
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1558 |
16360
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|
1559 "=" { |
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1560 curr_lexer->maybe_mark_previous_token_as_variable (); |
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1561 |
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1562 return curr_lexer->handle_op ("=", '='); |
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1563 } |
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|
1564 |
16680
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|
1565 "+=" { CMD_OR_COMPUTED_ASSIGN_OP ("+=", ADD_EQ); } |
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1566 "-=" { CMD_OR_COMPUTED_ASSIGN_OP ("-=", SUB_EQ); } |
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1567 "*=" { CMD_OR_COMPUTED_ASSIGN_OP ("*=", MUL_EQ); } |
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1568 "/=" { CMD_OR_COMPUTED_ASSIGN_OP ("/=", DIV_EQ); } |
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1569 "\\=" { CMD_OR_COMPUTED_ASSIGN_OP ("\\=", LEFTDIV_EQ); } |
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1570 ".+=" { CMD_OR_COMPUTED_ASSIGN_OP (".+=", ADD_EQ); } |
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|
1571 ".-=" { CMD_OR_COMPUTED_ASSIGN_OP (".-=", SUB_EQ); } |
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|
1572 ".*=" { CMD_OR_COMPUTED_ASSIGN_OP (".*=", EMUL_EQ); } |
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|
1573 "./=" { CMD_OR_COMPUTED_ASSIGN_OP ("./=", EDIV_EQ); } |
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|
1574 ".\\=" { CMD_OR_COMPUTED_ASSIGN_OP (".\\=", ELEFTDIV_EQ); } |
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|
1575 "^=" { CMD_OR_COMPUTED_ASSIGN_OP ("^=", POW_EQ); } |
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1576 "**=" { CMD_OR_COMPUTED_ASSIGN_OP ("^=", POW_EQ); } |
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1577 ".^=" { CMD_OR_COMPUTED_ASSIGN_OP (".^=", EPOW_EQ); } |
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1578 ".**=" { CMD_OR_COMPUTED_ASSIGN_OP (".^=", EPOW_EQ); } |
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1579 "&=" { CMD_OR_COMPUTED_ASSIGN_OP ("&=", AND_EQ); } |
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|
1580 "|=" { CMD_OR_COMPUTED_ASSIGN_OP ("|=", OR_EQ); } |
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improve parsing of commands
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parents:
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|
1581 "<<=" { CMD_OR_COMPUTED_ASSIGN_OP ("<<=", LSHIFT_EQ); } |
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improve parsing of commands
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parents:
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|
1582 ">>=" { CMD_OR_COMPUTED_ASSIGN_OP (">>=", RSHIFT_EQ); } |
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1583 |
16275
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1584 %{ |
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1585 // In Matlab, '{' may also trigger command syntax. |
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1586 %} |
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|
1587 |
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1588 "{" { |
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|
1589 curr_lexer->lexer_debug ("{"); |
8535 | 1590 |
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1591 bool unput_comma = false; |
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1592 |
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1593 if (curr_lexer->whitespace_is_significant () |
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1594 && curr_lexer->space_follows_previous_token ()) |
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1595 { |
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1596 int tok = curr_lexer->previous_token_value (); |
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1597 |
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1598 if (! (tok == '[' || tok == '{' |
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1599 || curr_lexer->previous_token_is_binop ())) |
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1600 unput_comma = true; |
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1601 } |
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1602 |
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1603 if (unput_comma) |
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1604 { |
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1605 yyless (0); |
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1606 curr_lexer->xunput (','); |
16281
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1607 // Adjust for comma that was not really in the input stream. |
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1608 curr_lexer->current_input_column--; |
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1609 } |
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1610 else |
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1611 { |
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1612 curr_lexer->nesting_level.brace (); |
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1613 |
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1614 curr_lexer->looking_at_object_index.push_front |
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1615 (curr_lexer->looking_for_object_index); |
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1616 |
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changeset
|
1617 curr_lexer->current_input_column += yyleng; |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
16261
diff
changeset
|
1618 curr_lexer->looking_for_object_index = false; |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1619 curr_lexer->at_beginning_of_statement = false; |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1620 |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1621 curr_lexer->decrement_promptflag (); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1622 |
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parents:
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diff
changeset
|
1623 curr_lexer->braceflag++; |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1624 |
9acb86e6ac90
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1625 curr_lexer->push_start_state (MATRIX_START); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1626 |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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diff
changeset
|
1627 return curr_lexer->count_token ('{'); |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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diff
changeset
|
1628 } |
3351 | 1629 } |
1630 | |
1631 "}" { | |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1632 curr_lexer->lexer_debug ("}"); |
8535 | 1633 |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
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parents:
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diff
changeset
|
1634 curr_lexer->looking_at_object_index.pop_front (); |
7302f8a4df83
use pointer for global lexical_feedback structure
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parents:
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diff
changeset
|
1635 |
7302f8a4df83
use pointer for global lexical_feedback structure
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parents:
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diff
changeset
|
1636 curr_lexer->looking_for_object_index = true; |
7302f8a4df83
use pointer for global lexical_feedback structure
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parents:
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diff
changeset
|
1637 curr_lexer->at_beginning_of_statement = false; |
7302f8a4df83
use pointer for global lexical_feedback structure
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parents:
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diff
changeset
|
1638 |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1639 curr_lexer->nesting_level.remove (); |
3351 | 1640 |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1641 return curr_lexer->handle_token ('}'); |
3351 | 1642 } |
1643 | |
968 | 1644 %{ |
2066 | 1645 // Unrecognized input is a lexical error. |
968 | 1646 %} |
1 | 1647 |
2042 | 1648 . { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1649 curr_lexer->lexer_debug ("."); |
8535 | 1650 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
1651 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
|
1652 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1653 int c = curr_lexer->text_yyinput (); |
4248 | 1654 |
16294
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1655 if (c == 1) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1656 return -1; |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1657 else if (c == EOF) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1658 return curr_lexer->handle_end_of_input (); |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1659 else |
4240 | 1660 { |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1661 curr_lexer->current_input_column++; |
10315
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1662 |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
1663 error ("invalid character '%s' (ASCII %d) near line %d, column %d", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1664 undo_string_escape (static_cast<char> (c)), c, |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1665 curr_lexer->input_line_number, curr_lexer->current_input_column); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1666 |
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untabify src C++ source files
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parents:
10182
diff
changeset
|
1667 return LEXICAL_ERROR; |
4240 | 1668 } |
2066 | 1669 } |
1 | 1670 |
1671 %% | |
1672 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1673 static void |
8535 | 1674 display_character (char c) |
1675 { | |
1676 if (isgraph (c)) | |
1677 std::cerr << c; | |
1678 else | |
1679 switch (c) | |
1680 { | |
1681 case 0: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1682 std::cerr << "NUL"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1683 break; |
8535 | 1684 |
1685 case 1: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1686 std::cerr << "SOH"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1687 break; |
8535 | 1688 |
1689 case 2: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1690 std::cerr << "STX"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1691 break; |
8535 | 1692 |
1693 case 3: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1694 std::cerr << "ETX"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1695 break; |
8535 | 1696 |
1697 case 4: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1698 std::cerr << "EOT"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1699 break; |
8535 | 1700 |
1701 case 5: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1702 std::cerr << "ENQ"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1703 break; |
8535 | 1704 |
1705 case 6: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1706 std::cerr << "ACK"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1707 break; |
8535 | 1708 |
1709 case 7: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1710 std::cerr << "\\a"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1711 break; |
8535 | 1712 |
1713 case 8: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1714 std::cerr << "\\b"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1715 break; |
8535 | 1716 |
1717 case 9: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1718 std::cerr << "\\t"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1719 break; |
8535 | 1720 |
1721 case 10: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1722 std::cerr << "\\n"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1723 break; |
8535 | 1724 |
1725 case 11: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1726 std::cerr << "\\v"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1727 break; |
8535 | 1728 |
1729 case 12: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1730 std::cerr << "\\f"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1731 break; |
8535 | 1732 |
1733 case 13: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1734 std::cerr << "\\r"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1735 break; |
8535 | 1736 |
1737 case 14: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1738 std::cerr << "SO"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1739 break; |
8535 | 1740 |
1741 case 15: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1742 std::cerr << "SI"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1743 break; |
8535 | 1744 |
1745 case 16: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1746 std::cerr << "DLE"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1747 break; |
8535 | 1748 |
1749 case 17: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1750 std::cerr << "DC1"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1751 break; |
8535 | 1752 |
1753 case 18: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1754 std::cerr << "DC2"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1755 break; |
8535 | 1756 |
1757 case 19: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1758 std::cerr << "DC3"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1759 break; |
8535 | 1760 |
1761 case 20: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1762 std::cerr << "DC4"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1763 break; |
8535 | 1764 |
1765 case 21: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1766 std::cerr << "NAK"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1767 break; |
8535 | 1768 |
1769 case 22: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1770 std::cerr << "SYN"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1771 break; |
8535 | 1772 |
1773 case 23: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1774 std::cerr << "ETB"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1775 break; |
8535 | 1776 |
1777 case 24: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1778 std::cerr << "CAN"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1779 break; |
8535 | 1780 |
1781 case 25: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1782 std::cerr << "EM"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1783 break; |
8535 | 1784 |
1785 case 26: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1786 std::cerr << "SUB"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1787 break; |
8535 | 1788 |
1789 case 27: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1790 std::cerr << "ESC"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1791 break; |
8535 | 1792 |
1793 case 28: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1794 std::cerr << "FS"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1795 break; |
8535 | 1796 |
1797 case 29: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1798 std::cerr << "GS"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1799 break; |
8535 | 1800 |
1801 case 30: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1802 std::cerr << "RS"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1803 break; |
8535 | 1804 |
1805 case 31: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1806 std::cerr << "US"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1807 break; |
8535 | 1808 |
1809 case 32: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1810 std::cerr << "SPACE"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1811 break; |
8535 | 1812 |
1813 case 127: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1814 std::cerr << "DEL"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1815 break; |
8535 | 1816 } |
1817 } | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1818 |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1819 bool |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1820 is_keyword (const std::string& s) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1821 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1822 // Parsing function names like "set.property_name" inside |
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1823 // classdef-style class definitions is simplified by handling the |
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1824 // "set" and "get" portions of the names using the same mechanism as |
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1825 // is used for keywords. However, they are not really keywords in |
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1826 // the language, so omit them from the list of possible keywords. |
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1827 |
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1828 return (octave_kw_hash::in_word_set (s.c_str (), s.length ()) != 0 |
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1829 && ! (s == "set" || s == "get")); |
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1830 } |
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1831 |
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1832 DEFUN (iskeyword, args, , |
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1833 "-*- texinfo -*-\n\ |
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1834 @deftypefn {Built-in Function} {} iskeyword ()\n\ |
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1835 @deftypefnx {Built-in Function} {} iskeyword (@var{name})\n\ |
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1836 Return true if @var{name} is an Octave keyword. If @var{name}\n\ |
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1837 is omitted, return a list of keywords.\n\ |
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1838 @seealso{isvarname, exist}\n\ |
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1839 @end deftypefn") |
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1840 { |
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1841 octave_value retval; |
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1842 |
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1843 int argc = args.length () + 1; |
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1844 |
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1845 string_vector argv = args.make_argv ("iskeyword"); |
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1846 |
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1847 if (error_state) |
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1848 return retval; |
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1849 |
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1850 if (argc == 1) |
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1851 { |
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1852 // Neither set and get are keywords. See the note in the |
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1853 // is_keyword function for additional details. |
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1854 |
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1855 string_vector lst (TOTAL_KEYWORDS); |
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1856 |
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1857 int j = 0; |
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1858 |
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1859 for (int i = 0; i < TOTAL_KEYWORDS; i++) |
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1860 { |
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1861 std::string tmp = wordlist[i].name; |
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1862 |
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1863 if (! (tmp == "set" || tmp == "get")) |
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1864 lst[j++] = tmp; |
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1865 } |
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1866 |
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1867 lst.resize (j); |
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1868 |
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1869 retval = Cell (lst.sort ()); |
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1870 } |
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1871 else if (argc == 2) |
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1872 { |
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1873 retval = is_keyword (argv[1]); |
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1874 } |
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1875 else |
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1876 print_usage (); |
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1877 |
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1878 return retval; |
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1879 } |
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1880 |
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1881 /* |
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1882 |
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1883 %!assert (iskeyword ("for")) |
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1884 %!assert (iskeyword ("fort"), false) |
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1885 %!assert (iskeyword ("fft"), false) |
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1886 |
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1887 */ |
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1888 |
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1889 // Used to delete trailing white space from tokens. |
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1890 |
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1891 static std::string |
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1892 strip_trailing_whitespace (char *s) |
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1893 { |
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1894 std::string retval = s; |
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1895 |
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1896 size_t pos = retval.find_first_of (" \t"); |
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1897 |
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1898 if (pos != std::string::npos) |
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1899 retval.resize (pos); |
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1900 |
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1901 return retval; |
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1902 } |
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1903 |
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1904 DEFUN (__display_tokens__, args, nargout, |
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1905 "-*- texinfo -*-\n\ |
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1906 @deftypefn {Built-in Function} {} __display_tokens__ ()\n\ |
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1907 Query or set the internal variable that determines whether Octave's\n\ |
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1908 lexer displays tokens as they are read.\n\ |
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1909 @seealso{__lexer_debug_flag__, __token_count__}\n\ |
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1910 @end deftypefn") |
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1911 { |
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1912 return SET_INTERNAL_VARIABLE (display_tokens); |
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1913 } |
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1914 |
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1915 DEFUN (__token_count__, , , |
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1916 "-*- texinfo -*-\n\ |
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1917 @deftypefn {Built-in Function} {} __token_count__ ()\n\ |
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1918 Return the number of language tokens processed since Octave startup.\n\ |
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1919 @seealso{__lexer_debug_flag__, __display_tokens__}\n\ |
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1920 @end deftypefn") |
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1921 { |
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1922 return octave_value (Vtoken_count); |
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1923 } |
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1924 |
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1925 DEFUN (__lexer_debug_flag__, args, nargout, |
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1926 "-*- texinfo -*-\n\ |
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1927 @deftypefn {Built-in Function} {@var{val} =} __lexer_debug_flag__ ()\n\ |
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1928 @deftypefnx {Built-in Function} {@var{old_val} =} __lexer_debug_flag__ (@var{new_val})\n\ |
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1929 Query or set the internal flag that determines whether Octave's lexer prints\n\ |
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1930 debug information as it processes an expression.\n\ |
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1931 @seealso{__display_tokens__, __token_count__, __parse_debug_flag__}\n\ |
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1932 @end deftypefn") |
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1933 { |
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1934 octave_value retval; |
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1935 |
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1936 retval = set_internal_variable (lexer_debug_flag, args, nargout, |
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1937 "__lexer_debug_flag__"); |
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1938 |
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1939 return retval; |
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1940 } |
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1941 |
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|
1942 lexical_feedback::~lexical_feedback (void) |
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|
1943 { |
16230
4bf907906134
use a queue to hold tokens in the lexer
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parents:
16229
diff
changeset
|
1944 tokens.clear (); |
16194
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reset lexical_feedback state before starting a new parse
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|
1945 } |
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1946 |
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|
1947 void |
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|
1948 lexical_feedback::init (void) |
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reset lexical_feedback state before starting a new parse
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|
1949 { |
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1950 // The closest paren, brace, or bracket nesting is not an object |
b7ca669af528
reset lexical_feedback state before starting a new parse
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diff
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|
1951 // index. |
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diff
changeset
|
1952 looking_at_object_index.push_front (false); |
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1953 } |
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diff
changeset
|
1954 |
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changeset
|
1955 void |
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|
1956 lexical_feedback::reset (void) |
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|
1957 { |
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|
1958 end_of_input = false; |
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diff
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|
1959 at_beginning_of_statement = true; |
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16193
diff
changeset
|
1960 looking_at_anon_fcn_args = false; |
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parents:
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diff
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|
1961 looking_at_return_list = false; |
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reset lexical_feedback state before starting a new parse
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parents:
16193
diff
changeset
|
1962 looking_at_parameter_list = false; |
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reset lexical_feedback state before starting a new parse
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parents:
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diff
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|
1963 looking_at_decl_list = false; |
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reset lexical_feedback state before starting a new parse
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parents:
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diff
changeset
|
1964 looking_at_initializer_expression = false; |
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1965 looking_at_matrix_or_assign_lhs = false; |
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reset lexical_feedback state before starting a new parse
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parents:
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diff
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|
1966 looking_for_object_index = false; |
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|
1967 looking_at_indirect_ref = false; |
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reset lexical_feedback state before starting a new parse
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diff
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|
1968 parsing_class_method = false; |
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1969 maybe_classdef_get_set_method = false; |
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1970 parsing_classdef = false; |
16203
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parents:
16199
diff
changeset
|
1971 force_script = false; |
16199
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16195
diff
changeset
|
1972 reading_fcn_file = false; |
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|
1973 reading_script_file = false; |
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parents:
16195
diff
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|
1974 reading_classdef_file = false; |
16194
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diff
changeset
|
1975 input_line_number = 1; |
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reset lexical_feedback state before starting a new parse
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parents:
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diff
changeset
|
1976 current_input_column = 1; |
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1977 bracketflag = 0; |
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diff
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|
1978 braceflag = 0; |
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changeset
|
1979 looping = 0; |
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parents:
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changeset
|
1980 defining_func = 0; |
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reset lexical_feedback state before starting a new parse
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parents:
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diff
changeset
|
1981 looking_at_function_handle = 0; |
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reset lexical_feedback state before starting a new parse
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parents:
16193
diff
changeset
|
1982 block_comment_nesting_level = 0; |
16203
127cccb037bf
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diff
changeset
|
1983 token_count = 0; |
16207
0467d68ca891
move current_input_line to lexical_feedback class
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parents:
16203
diff
changeset
|
1984 current_input_line = ""; |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
1985 comment_text = ""; |
16203
127cccb037bf
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parents:
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diff
changeset
|
1986 help_text = ""; |
16898
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parents:
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diff
changeset
|
1987 string_text = ""; |
531473481084
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diff
changeset
|
1988 string_line = 0; |
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parents:
16788
diff
changeset
|
1989 string_column = 0; |
16203
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diff
changeset
|
1990 fcn_file_name = ""; |
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parents:
16199
diff
changeset
|
1991 fcn_file_full_name = ""; |
16194
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1992 looking_at_object_index.clear (); |
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reset lexical_feedback state before starting a new parse
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16193
diff
changeset
|
1993 looking_at_object_index.push_front (false); |
18224
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1994 command_arg_paren_count = 0; |
16194
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1995 |
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diff
changeset
|
1996 while (! parsed_function_name.empty ()) |
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1997 parsed_function_name.pop (); |
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1998 |
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1999 nesting_level.reset (); |
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16193
diff
changeset
|
2000 |
16230
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16229
diff
changeset
|
2001 tokens.clear (); |
16194
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diff
changeset
|
2002 } |
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diff
changeset
|
2003 |
16255
12bf6a3f8c45
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16253
diff
changeset
|
2004 int |
12bf6a3f8c45
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diff
changeset
|
2005 lexical_feedback::previous_token_value (void) const |
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diff
changeset
|
2006 { |
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changeset
|
2007 const token *tok = tokens.front (); |
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|
2008 return tok ? tok->token_value () : 0; |
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diff
changeset
|
2009 } |
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diff
changeset
|
2010 |
12bf6a3f8c45
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diff
changeset
|
2011 bool |
12bf6a3f8c45
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diff
changeset
|
2012 lexical_feedback::previous_token_value_is (int tok_val) const |
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diff
changeset
|
2013 { |
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changeset
|
2014 const token *tok = tokens.front (); |
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changeset
|
2015 return tok ? tok->token_value_is (tok_val) : false; |
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diff
changeset
|
2016 } |
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diff
changeset
|
2017 |
12bf6a3f8c45
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2018 void |
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diff
changeset
|
2019 lexical_feedback::mark_previous_token_trailing_space (void) |
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changeset
|
2020 { |
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changeset
|
2021 token *tok = tokens.front (); |
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diff
changeset
|
2022 if (tok && ! previous_token_value_is ('\n')) |
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diff
changeset
|
2023 tok->mark_trailing_space (); |
12bf6a3f8c45
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16253
diff
changeset
|
2024 } |
12bf6a3f8c45
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16253
diff
changeset
|
2025 |
12bf6a3f8c45
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diff
changeset
|
2026 bool |
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diff
changeset
|
2027 lexical_feedback::space_follows_previous_token (void) const |
12bf6a3f8c45
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diff
changeset
|
2028 { |
12bf6a3f8c45
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diff
changeset
|
2029 const token *tok = tokens.front (); |
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diff
changeset
|
2030 return tok ? tok->space_follows_token () : false; |
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diff
changeset
|
2031 } |
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diff
changeset
|
2032 |
16257
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diff
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|
2033 bool |
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16255
diff
changeset
|
2034 lexical_feedback::previous_token_is_binop (void) const |
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16255
diff
changeset
|
2035 { |
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diff
changeset
|
2036 int tok = previous_token_value (); |
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diff
changeset
|
2037 |
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diff
changeset
|
2038 return (tok == '+' || tok == '-' || tok == '@' |
db7f07b22b9b
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diff
changeset
|
2039 || tok == ',' || tok == ';' || tok == '*' || tok == '/' |
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diff
changeset
|
2040 || tok == ':' || tok == '=' || tok == ADD_EQ |
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diff
changeset
|
2041 || tok == AND_EQ || tok == DIV_EQ || tok == EDIV |
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diff
changeset
|
2042 || tok == EDIV_EQ || tok == ELEFTDIV || tok == ELEFTDIV_EQ |
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diff
changeset
|
2043 || tok == EMINUS || tok == EMUL || tok == EMUL_EQ |
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changeset
|
2044 || tok == EPOW || tok == EPOW_EQ || tok == EXPR_AND |
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diff
changeset
|
2045 || tok == EXPR_AND_AND || tok == EXPR_EQ || tok == EXPR_GE |
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diff
changeset
|
2046 || tok == EXPR_GT || tok == EXPR_LE || tok == EXPR_LT |
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|
2047 || tok == EXPR_NE || tok == EXPR_NOT || tok == EXPR_OR |
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|
2048 || tok == EXPR_OR_OR || tok == LEFTDIV || tok == LEFTDIV_EQ |
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changeset
|
2049 || tok == LSHIFT || tok == LSHIFT_EQ || tok == MUL_EQ |
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changeset
|
2050 || tok == OR_EQ || tok == POW || tok == POW_EQ |
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changeset
|
2051 || tok == RSHIFT || tok == RSHIFT_EQ || tok == SUB_EQ); |
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changeset
|
2052 } |
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changeset
|
2053 |
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|
2054 bool |
16267
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changeset
|
2055 lexical_feedback::previous_token_is_keyword (void) const |
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|
2056 { |
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changeset
|
2057 const token *tok = tokens.front (); |
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|
2058 return tok ? tok->is_keyword () : false; |
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|
2059 } |
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changeset
|
2060 |
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|
2061 bool |
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|
2062 lexical_feedback::previous_token_may_be_command (void) const |
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|
2063 { |
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|
2064 const token *tok = tokens.front (); |
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diff
changeset
|
2065 return tok ? tok->may_be_command () : false; |
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|
2066 } |
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|
2067 |
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2068 void |
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2069 lexical_feedback::maybe_mark_previous_token_as_variable (void) |
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2070 { |
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2071 token *tok = tokens.front (); |
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2072 |
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2073 if (tok && tok->is_symbol ()) |
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2074 pending_local_variables.insert (tok->symbol_name ()); |
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2075 } |
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|
2076 |
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2077 void |
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|
2078 lexical_feedback::mark_as_variables (const std::list<std::string>& lst) |
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|
2079 { |
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parents:
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|
2080 for (std::list<std::string>::const_iterator p = lst.begin (); |
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|
2081 p != lst.end (); p++) |
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2082 { |
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2083 pending_local_variables.insert (*p); |
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2084 } |
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2085 } |
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|
2086 |
16228
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2087 static bool |
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2088 looks_like_copyright (const std::string& s) |
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2089 { |
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|
2090 bool retval = false; |
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|
2091 |
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2092 if (! s.empty ()) |
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2093 { |
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2094 size_t offset = s.find_first_not_of (" \t"); |
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2095 |
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2096 retval = (s.substr (offset, 9) == "Copyright" || s.substr (offset, 6) == "Author"); |
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2097 } |
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2098 |
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2099 return retval; |
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2100 } |
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2101 |
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2102 void |
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2103 octave_base_lexer::input_buffer::fill (const std::string& input, bool eof_arg) |
16183
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2104 { |
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2105 buffer = input; |
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|
2106 chars_left = buffer.length (); |
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|
2107 pos = buffer.c_str (); |
16195
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2108 eof = eof_arg; |
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2109 } |
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|
2110 |
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|
2111 int |
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2112 octave_base_lexer::input_buffer::copy_chunk (char *buf, size_t max_size) |
16183
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|
2113 { |
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|
2114 static const char * const eol = "\n"; |
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|
2115 |
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|
2116 size_t len = max_size > chars_left ? chars_left : max_size; |
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changeset
|
2117 assert (len > 0); |
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|
2118 |
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|
2119 memcpy (buf, pos, len); |
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|
2120 |
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handle lexer input buffering with class
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|
2121 chars_left -= len; |
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changeset
|
2122 pos += len; |
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diff
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|
2123 |
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handle lexer input buffering with class
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|
2124 // Make sure input ends with a new line character. |
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handle lexer input buffering with class
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changeset
|
2125 if (chars_left == 0 && buf[len-1] != '\n') |
359d56094efa
handle lexer input buffering with class
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parents:
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diff
changeset
|
2126 { |
359d56094efa
handle lexer input buffering with class
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parents:
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diff
changeset
|
2127 if (len < max_size) |
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handle lexer input buffering with class
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parents:
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diff
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|
2128 { |
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handle lexer input buffering with class
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diff
changeset
|
2129 // There is enough room to plug the newline character in |
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handle lexer input buffering with class
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diff
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|
2130 // the buffer. |
359d56094efa
handle lexer input buffering with class
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diff
changeset
|
2131 buf[len++] = '\n'; |
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handle lexer input buffering with class
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diff
changeset
|
2132 } |
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handle lexer input buffering with class
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diff
changeset
|
2133 else |
359d56094efa
handle lexer input buffering with class
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parents:
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diff
changeset
|
2134 { |
359d56094efa
handle lexer input buffering with class
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parents:
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diff
changeset
|
2135 // There isn't enough room to plug the newline character |
359d56094efa
handle lexer input buffering with class
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parents:
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diff
changeset
|
2136 // in the buffer so arrange to have it returned on the next |
16293
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create base class for lexer
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diff
changeset
|
2137 // call to octave_base_lexer::read. |
16183
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handle lexer input buffering with class
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parents:
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diff
changeset
|
2138 pos = eol; |
359d56094efa
handle lexer input buffering with class
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parents:
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diff
changeset
|
2139 chars_left = 1; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2140 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2141 } |
359d56094efa
handle lexer input buffering with class
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parents:
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diff
changeset
|
2142 |
359d56094efa
handle lexer input buffering with class
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parents:
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diff
changeset
|
2143 return len; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2144 } |
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handle lexer input buffering with class
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diff
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|
2145 |
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diff
changeset
|
2146 octave_base_lexer::~octave_base_lexer (void) |
16114
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* lex.ll: Reorder function definitions.
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parents:
16113
diff
changeset
|
2147 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
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parents:
16148
diff
changeset
|
2148 yylex_destroy (scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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diff
changeset
|
2149 } |
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* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2150 |
16123
a484e39d1f22
maint: move function definition in lex.ll
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parents:
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diff
changeset
|
2151 void |
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parents:
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diff
changeset
|
2152 octave_base_lexer::init (void) |
16149
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use pure parser and reentrant lexer interfaces
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|
2153 { |
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use pure parser and reentrant lexer interfaces
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|
2154 yylex_init (&scanner); |
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use pure parser and reentrant lexer interfaces
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|
2155 |
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2156 // Make octave_base_lexer object available through yyextra in |
16149
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use pure parser and reentrant lexer interfaces
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2157 // flex-generated lexer. |
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diff
changeset
|
2158 yyset_extra (this, scanner); |
16224
4a848eb52de2
use stack for tracking lexer start states
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diff
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|
2159 |
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use stack for tracking lexer start states
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diff
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|
2160 clear_start_state (); |
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changeset
|
2161 } |
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use pure parser and reentrant lexer interfaces
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changeset
|
2162 |
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|
2163 // Inside Flex-generated functions, yyg is the scanner cast to its real |
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create base class for lexer
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2164 // type. Some flex macros that we use in octave_base_lexer member functions |
16224
4a848eb52de2
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parents:
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diff
changeset
|
2165 // (for example, BEGIN) use yyg. If we could perform the actions of |
4a848eb52de2
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16209
diff
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2166 // these macros with functions instead, we could eliminate the |
4a848eb52de2
use stack for tracking lexer start states
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2167 // OCTAVE_YYG macro. |
16149
49dfba4fd3c5
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diff
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2168 |
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|
2169 #define OCTAVE_YYG \ |
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2170 struct yyguts_t *yyg = static_cast<struct yyguts_t*> (scanner) |
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2171 |
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|
2172 void |
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2173 octave_base_lexer::reset (void) |
16123
a484e39d1f22
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2174 { |
a484e39d1f22
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2175 // Start off on the right foot. |
16224
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2176 clear_start_state (); |
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a484e39d1f22
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2177 |
16320
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don't modify symbol table scope in the parser
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diff
changeset
|
2178 symtab_context.clear (); |
16123
a484e39d1f22
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2179 |
a484e39d1f22
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diff
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2180 // We do want a prompt by default. |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
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parents:
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diff
changeset
|
2181 promptflag (1); |
16123
a484e39d1f22
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2182 |
a484e39d1f22
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changeset
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2183 // Only ask for input from stdin if we are expecting interactive |
a484e39d1f22
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2184 // input. |
a484e39d1f22
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changeset
|
2185 |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2186 if (! quitting_gracefully |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2187 && (interactive || forced_interactive) |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2188 && ! (reading_fcn_file |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2189 || reading_classdef_file |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2190 || reading_script_file |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2191 || input_from_eval_string ())) |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2192 yyrestart (stdin, scanner); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2193 |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2194 lexical_feedback::reset (); |
17693
efbe746f8fa8
eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents:
17355
diff
changeset
|
2195 |
efbe746f8fa8
eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents:
17355
diff
changeset
|
2196 comment_buf.reset (); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2197 } |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2198 |
16124
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
2199 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2200 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
|
2201 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2202 reading_script_file = true; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2203 |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2204 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
|
2205 } |
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
2206 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2207 void |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2208 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
|
2209 { |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2210 string_line = input_line_number; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2211 string_column = current_input_column; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2212 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2213 push_start_state (state); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2214 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2215 |
16121
bdf365c5c9bf
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16120
diff
changeset
|
2216 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2217 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
|
2218 { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
2219 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
|
2220 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2221 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
|
2222 { |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2223 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
|
2224 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2225 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
|
2226 && ! 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
|
2227 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
|
2228 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
|
2229 } |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2230 |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
2231 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
|
2232 } |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2233 |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2234 char * |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2235 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
|
2236 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2237 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
|
2238 } |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2239 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2240 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2241 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
|
2242 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2243 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
|
2244 } |
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2245 |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2246 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2247 octave_base_lexer::text_yyinput (void) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2248 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2249 int c = yyinput (scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2250 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2251 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2252 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2253 std::cerr << "I: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2254 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2255 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2256 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2257 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2258 // 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
|
2259 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2260 if (c == '\r') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2261 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2262 c = yyinput (scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2263 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2264 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2265 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2266 std::cerr << "I: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2267 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2268 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2269 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2270 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2271 if (c != '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2272 { |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2273 xunput (c); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2274 c = '\n'; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2275 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2276 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2277 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2278 return c; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2279 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2280 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2281 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2282 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
|
2283 { |
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
|
2284 if (c != EOF) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2285 { |
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
|
2286 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
|
2287 { |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2288 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
|
2289 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
|
2290 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
|
2291 } |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2292 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2293 yyunput (c, buf, scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2294 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2295 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2296 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2297 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2298 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
|
2299 { |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2300 char *yytxt = flex_yytext (); |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2301 |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2302 xunput (c, yytxt); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2303 } |
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2304 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2305 bool |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2306 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
|
2307 { |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2308 int c = text_yyinput (); |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2309 xunput (c); |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2310 return (c == ' ' || c == '\t'); |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2311 } |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2312 |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2313 bool |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2314 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
|
2315 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2316 bool retval = false; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2317 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2318 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
|
2319 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
|
2320 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2321 if (*i) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2322 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2323 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2324 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2325 } |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2326 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2327 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2328 return retval; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2329 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2330 |
16360
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2331 bool |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2332 octave_base_lexer::is_variable (const std::string& name) |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2333 { |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2334 return (symbol_table::is_variable (name) |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2335 || (pending_local_variables.find (name) |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2336 != pending_local_variables.end ())); |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2337 } |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2338 |
4238 | 2339 // Handle keywords. Return -1 if the keyword should be ignored. |
767 | 2340 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2341 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2342 octave_base_lexer::is_keyword_token (const std::string& s) |
1 | 2343 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2344 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
|
2345 int c = current_input_column; |
3805 | 2346 |
1823 | 2347 int len = s.length (); |
922 | 2348 |
5088 | 2349 const octave_kw *kw = octave_kw_hash::in_word_set (s.c_str (), len); |
191 | 2350 |
1497 | 2351 if (kw) |
143 | 2352 { |
18319
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2353 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
|
2354 |
16783
0bf1d559b321
always set at_beginning_of_statement when recognizing keywords (bug #38758)
John W. Eaton <jwe@octave.org>
parents:
16756
diff
changeset
|
2355 // 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
|
2356 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
|
2357 |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
2358 token *tok_val = 0; |
1497 | 2359 |
2360 switch (kw->kw_id) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2361 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2362 case break_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2363 case catch_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2364 case continue_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2365 case else_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2366 case otherwise_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2367 case return_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2368 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
|
2369 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2370 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2371 |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2372 case static_kw: |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2373 if ((reading_fcn_file || reading_script_file |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2374 || reading_classdef_file) |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2375 && ! fcn_file_full_name.empty ()) |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2376 warning_with_id ("Octave:deprecated-keyword", |
15468
6437fa7263dd
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
15467
diff
changeset
|
2377 "the 'static' keyword is obsolete and will be removed from a future version of Octave; please use 'persistent' instead; near line %d of file '%s'", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2378 input_line_number, |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2379 fcn_file_full_name.c_str ()); |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2380 else |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2381 warning_with_id ("Octave:deprecated-keyword", |
15468
6437fa7263dd
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
15467
diff
changeset
|
2382 "the 'static' keyword is obsolete and will be removed from a future version of Octave; please use 'persistent' instead; near line %d", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2383 input_line_number); |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2384 // fall through ... |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2385 |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2386 case persistent_kw: |
16263
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
2387 case global_kw: |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
2388 looking_at_decl_list = true; |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2389 break; |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2390 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2391 case case_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2392 case elseif_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2393 case until_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2394 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2395 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2396 case end_kw: |
14645
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
2397 if (inside_any_object_index () |
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
2398 || (! reading_classdef_file |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2399 && (defining_func |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2400 && ! (looking_at_return_list |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2401 || 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
|
2402 { |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2403 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
|
2404 return 0; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2405 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2406 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2407 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
|
2408 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2409 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2410 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2411 case end_try_catch_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2412 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
|
2413 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2414 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2415 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2416 case end_unwind_protect_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2417 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
|
2418 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
|
2419 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2420 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2421 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2422 case endfor_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2423 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
|
2424 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2425 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2426 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2427 case endfunction_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2428 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
|
2429 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2430 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2431 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2432 case endif_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2433 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
|
2434 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2435 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2436 |
13246 | 2437 case endparfor_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2438 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
|
2439 at_beginning_of_statement = true; |
13246 | 2440 break; |
2441 | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2442 case endswitch_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2443 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
|
2444 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2445 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2446 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2447 case endwhile_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2448 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
|
2449 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2450 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2451 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2452 case endclassdef_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2453 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
|
2454 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2455 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2456 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2457 case endenumeration_kw: |
16267
15f55df088e7
6/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16265
diff
changeset
|
2458 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
|
2459 at_beginning_of_statement = true; |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2460 break; |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2461 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2462 case endevents_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2463 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
|
2464 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2465 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2466 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2467 case endmethods_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2468 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
|
2469 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2470 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2471 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2472 case endproperties_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2473 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
|
2474 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2475 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2476 |
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
|
2477 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2478 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
|
2479 case parfor_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2480 case while_kw: |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2481 decrement_promptflag (); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2482 looping++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2483 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2484 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2485 case do_kw: |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2486 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
|
2487 decrement_promptflag (); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2488 looping++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2489 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2490 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2491 case try_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2492 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
|
2493 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
|
2494 decrement_promptflag (); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2495 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2496 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2497 case if_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2498 case switch_kw: |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2499 decrement_promptflag (); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2500 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2501 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2502 case get_kw: |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2503 case set_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2504 // 'get' and 'set' are keywords in classdef method |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2505 // declarations. |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2506 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
|
2507 { |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2508 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
|
2509 return 0; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2510 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2511 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2512 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2513 case enumeration_kw: |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2514 case events_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2515 case methods_kw: |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2516 case properties_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2517 // 'properties', 'methods' and 'events' are keywords for |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2518 // classdef blocks. |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2519 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
|
2520 { |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2521 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
|
2522 return 0; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2523 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2524 // fall through ... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2525 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2526 case classdef_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2527 // '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
|
2528 decrement_promptflag (); |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2529 |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2530 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
|
2531 { |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2532 reading_classdef_file = true; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2533 reading_script_file = false; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2534 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2535 break; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2536 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2537 case function_kw: |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2538 decrement_promptflag (); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2539 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2540 defining_func++; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2541 parsed_function_name.push (false); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2542 |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2543 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
|
2544 { |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2545 reading_fcn_file = true; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2546 reading_script_file = false; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2547 } |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2548 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2549 if (! (reading_fcn_file || reading_script_file |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2550 || reading_classdef_file)) |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2551 input_line_number = 1; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2552 break; |
1497 | 2553 |
3174 | 2554 case magic_file_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2555 { |
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diff
changeset
|
2556 if ((reading_fcn_file || reading_script_file |
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
2557 || reading_classdef_file) |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2558 && ! fcn_file_full_name.empty ()) |
16267
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6/10 commits reworking the lexer
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parents:
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diff
changeset
|
2559 tok_val = new token (magic_file_kw, true, |
15f55df088e7
6/10 commits reworking the lexer
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parents:
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diff
changeset
|
2560 fcn_file_full_name, l, c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2561 else |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2562 tok_val = new token (magic_file_kw, "stdin", l, c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2563 } |
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2564 break; |
3174 | 2565 |
2566 case magic_line_kw: | |
16255
12bf6a3f8c45
store more info in token value class
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parents:
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diff
changeset
|
2567 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:
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diff
changeset
|
2568 "", l, c); |
10315
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
2569 break; |
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parents:
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diff
changeset
|
2570 |
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diff
changeset
|
2571 default: |
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parents:
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diff
changeset
|
2572 panic_impossible (); |
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untabify src C++ source files
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parents:
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diff
changeset
|
2573 } |
1497 | 2574 |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2575 if (! tok_val) |
16267
15f55df088e7
6/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2576 tok_val = new token (kw->tok, true, l, c); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
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diff
changeset
|
2577 |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2578 push_token (tok_val); |
1497 | 2579 |
2580 return kw->tok; | |
143 | 2581 } |
1 | 2582 |
2583 return 0; | |
2584 } | |
2585 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2586 bool |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2587 octave_base_lexer::whitespace_is_significant (void) |
16257
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1/10 commits reworking the lexer
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diff
changeset
|
2588 { |
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diff
changeset
|
2589 return (nesting_level.is_bracket () |
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1/10 commits reworking the lexer
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diff
changeset
|
2590 || (nesting_level.is_brace () |
db7f07b22b9b
1/10 commits reworking the lexer
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diff
changeset
|
2591 && ! looking_at_object_index.front ())); |
db7f07b22b9b
1/10 commits reworking the lexer
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diff
changeset
|
2592 } |
db7f07b22b9b
1/10 commits reworking the lexer
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parents:
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diff
changeset
|
2593 |
3220 | 2594 static inline bool |
2595 looks_like_hex (const char *s, int len) | |
2596 { | |
2597 return (len > 2 && s[0] == '0' && (s[1] == 'x' || s[1] == 'X')); | |
2598 } | |
2599 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2600 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2601 octave_base_lexer::handle_number (void) |
972 | 2602 { |
3220 | 2603 double value = 0.0; |
2604 int nread = 0; | |
2605 | |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2606 char *yytxt = flex_yytext (); |
210039e91ad6
localize use of yytext with lexical_feedback member function
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diff
changeset
|
2607 |
210039e91ad6
localize use of yytext with lexical_feedback member function
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diff
changeset
|
2608 if (looks_like_hex (yytxt, strlen (yytxt))) |
3220 | 2609 { |
2610 unsigned long ival; | |
3598 | 2611 |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
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parents:
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diff
changeset
|
2612 nread = sscanf (yytxt, "%lx", &ival); |
3598 | 2613 |
3220 | 2614 value = static_cast<double> (ival); |
2615 } | |
2616 else | |
3598 | 2617 { |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2618 char *tmp = strsave (yytxt); |
3598 | 2619 |
2620 char *idx = strpbrk (tmp, "Dd"); | |
2621 | 2621 |
3598 | 2622 if (idx) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2623 *idx = 'e'; |
3598 | 2624 |
2625 nread = sscanf (tmp, "%lf", &value); | |
2626 | |
2627 delete [] tmp; | |
2628 } | |
972 | 2629 |
1826 | 2630 // If yytext doesn't contain a valid number, we are in deep doo doo. |
985 | 2631 |
972 | 2632 assert (nread == 1); |
2633 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2634 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
|
2635 at_beginning_of_statement = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2636 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2637 push_token (new token (NUM, value, yytxt, input_line_number, |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
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parents:
16146
diff
changeset
|
2638 current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2639 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2640 current_input_column += flex_yyleng (); |
972 | 2641 } |
2642 | |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2643 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2644 octave_base_lexer::handle_continuation (void) |
16253
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diff
changeset
|
2645 { |
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diff
changeset
|
2646 char *yytxt = flex_yytext (); |
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partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2647 int yylng = flex_yyleng (); |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2648 |
16257
db7f07b22b9b
1/10 commits reworking the lexer
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parents:
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diff
changeset
|
2649 int offset = 1; |
16253
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partial cleanup of continuation handling in lexer
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diff
changeset
|
2650 if (yytxt[0] == '\\') |
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parents:
16231
diff
changeset
|
2651 gripe_matlab_incompatible_continuation (); |
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parents:
16231
diff
changeset
|
2652 else |
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John W. Eaton <jwe@octave.org>
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16231
diff
changeset
|
2653 offset = 3; |
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2654 |
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diff
changeset
|
2655 bool have_space = false; |
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partial cleanup of continuation handling in lexer
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parents:
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diff
changeset
|
2656 while (offset < yylng) |
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John W. Eaton <jwe@octave.org>
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16231
diff
changeset
|
2657 { |
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2658 char c = yytxt[offset]; |
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partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2659 if (c == ' ' || c == '\t') |
a89cf57ba3a5
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parents:
16231
diff
changeset
|
2660 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
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16231
diff
changeset
|
2661 have_space = true; |
a89cf57ba3a5
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John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2662 offset++; |
a89cf57ba3a5
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John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2663 } |
a89cf57ba3a5
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John W. Eaton <jwe@octave.org>
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16231
diff
changeset
|
2664 else |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2665 break; |
a89cf57ba3a5
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John W. Eaton <jwe@octave.org>
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16231
diff
changeset
|
2666 } |
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John W. Eaton <jwe@octave.org>
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16231
diff
changeset
|
2667 |
16255
12bf6a3f8c45
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John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2668 if (have_space) |
12bf6a3f8c45
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John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2669 mark_previous_token_trailing_space (); |
12bf6a3f8c45
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John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2670 |
16253
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2671 bool have_comment = false; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2672 while (offset < yylng) |
a89cf57ba3a5
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16231
diff
changeset
|
2673 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
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16231
diff
changeset
|
2674 char c = yytxt[offset]; |
a89cf57ba3a5
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John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2675 if (c == '#' || c == '%') |
a89cf57ba3a5
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parents:
16231
diff
changeset
|
2676 { |
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partial cleanup of continuation handling in lexer
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16231
diff
changeset
|
2677 have_comment = true; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2678 offset++; |
a89cf57ba3a5
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16231
diff
changeset
|
2679 } |
a89cf57ba3a5
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John W. Eaton <jwe@octave.org>
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16231
diff
changeset
|
2680 else |
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16231
diff
changeset
|
2681 break; |
a89cf57ba3a5
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diff
changeset
|
2682 } |
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changeset
|
2683 |
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diff
changeset
|
2684 if (have_comment) |
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diff
changeset
|
2685 { |
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diff
changeset
|
2686 comment_text = &yytxt[offset]; |
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diff
changeset
|
2687 |
18246
1f072ae35ede
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18135
diff
changeset
|
2688 // finish_comment sets at_beginning_of_statement to true but |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
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parents:
18135
diff
changeset
|
2689 // that's not be correct if we are handling a continued |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
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parents:
18135
diff
changeset
|
2690 // statement. Preserve the current state. |
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fix parsing of single quote after continuation and comment (bug #41048)
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diff
changeset
|
2691 |
1f072ae35ede
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18135
diff
changeset
|
2692 bool saved_bos = at_beginning_of_statement; |
1f072ae35ede
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diff
changeset
|
2693 |
16337
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
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16334
diff
changeset
|
2694 finish_comment (octave_comment_elt::end_of_line); |
18246
1f072ae35ede
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18135
diff
changeset
|
2695 |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
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18135
diff
changeset
|
2696 at_beginning_of_statement = saved_bos; |
16253
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changeset
|
2697 } |
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changeset
|
2698 |
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diff
changeset
|
2699 decrement_promptflag (); |
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diff
changeset
|
2700 input_line_number++; |
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diff
changeset
|
2701 current_input_column = 1; |
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changeset
|
2702 } |
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changeset
|
2703 |
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diff
changeset
|
2704 void |
16337
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
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changeset
|
2705 octave_base_lexer::finish_comment (octave_comment_elt::comment_type typ) |
16253
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|
2706 { |
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changeset
|
2707 bool copyright = looks_like_copyright (comment_text); |
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changeset
|
2708 |
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changeset
|
2709 if (nesting_level.none () && help_text.empty () |
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diff
changeset
|
2710 && ! comment_text.empty () && ! copyright) |
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changeset
|
2711 help_text = comment_text; |
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diff
changeset
|
2712 |
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diff
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|
2713 if (copyright) |
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diff
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|
2714 typ = octave_comment_elt::copyright; |
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partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
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diff
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|
2715 |
17693
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eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
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17355
diff
changeset
|
2716 comment_buf.append (comment_text, typ); |
16253
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diff
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|
2717 |
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diff
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|
2718 comment_text = ""; |
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diff
changeset
|
2719 |
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diff
changeset
|
2720 at_beginning_of_statement = true; |
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|
2721 } |
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|
2722 |
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John W. Eaton <jwe@octave.org>
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diff
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|
2723 int |
16293
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create base class for lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2724 octave_base_lexer::handle_close_bracket (int bracket_type) |
971 | 2725 { |
4612 | 2726 int retval = bracket_type; |
3208 | 2727 |
16113
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2728 if (! nesting_level.none ()) |
971 | 2729 { |
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2730 nesting_level.remove (); |
4613 | 2731 |
2732 if (bracket_type == ']') | |
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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|
2733 bracketflag--; |
4613 | 2734 else if (bracket_type == '}') |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2735 braceflag--; |
4613 | 2736 else |
10315
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2737 panic_impossible (); |
971 | 2738 } |
2739 | |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2740 pop_start_state (); |
1001 | 2741 |
3208 | 2742 return retval; |
971 | 2743 } |
2744 | |
16113
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2745 bool |
16293
57e87ddfee14
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2746 octave_base_lexer::looks_like_command_arg (void) |
8746
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handle commands in the lexer
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8745
diff
changeset
|
2747 { |
16275
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10/10 commits reworking the lexer
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parents:
16273
diff
changeset
|
2748 bool space_before = space_follows_previous_token (); |
dd7de0345124
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2749 bool space_after = looking_at_space (); |
dd7de0345124
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diff
changeset
|
2750 |
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diff
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|
2751 return (space_before && ! space_after |
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10/10 commits reworking the lexer
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diff
changeset
|
2752 && previous_token_may_be_command ()); |
8746
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2753 } |
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2754 |
16113
7c5e5e97a3bc
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John W. Eaton <jwe@octave.org>
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|
2755 int |
16293
57e87ddfee14
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2756 octave_base_lexer::handle_superclass_identifier (void) |
9476 | 2757 { |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2758 std::string pkg; |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2759 char *yytxt = flex_yytext (); |
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parents:
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diff
changeset
|
2760 std::string meth = strip_trailing_whitespace (yytxt); |
9476 | 2761 size_t pos = meth.find ("@"); |
2762 std::string cls = meth.substr (pos).substr (1); | |
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
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|
2763 meth = meth.substr (0, pos - 1); |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
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|
2764 |
9476 | 2765 pos = cls.find ("."); |
2766 if (pos != std::string::npos) | |
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2767 { |
9476 | 2768 pkg = cls.substr (pos).substr (1); |
2769 cls = cls.substr (0, pos - 1); | |
2770 } | |
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
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|
2771 |
9476 | 2772 int kw_token = (is_keyword_token (meth) || is_keyword_token (cls) |
10315
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2773 || is_keyword_token (pkg)); |
9476 | 2774 if (kw_token) |
2775 { | |
2776 error ("method, class and package names may not be keywords"); | |
2777 return LEXICAL_ERROR; | |
2778 } | |
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
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|
2779 |
16320
09f0cb9cac7d
don't modify symbol table scope in the parser
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2780 symbol_table::scope_id sid = symtab_context.curr_scope (); |
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|
2781 |
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diff
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|
2782 push_token (new token |
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diff
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|
2783 (SUPERCLASSREF, |
09f0cb9cac7d
don't modify symbol table scope in the parser
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2784 meth.empty () ? 0 : &(symbol_table::insert (meth, sid)), |
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2785 cls.empty () ? 0 : &(symbol_table::insert (cls, sid)), |
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2786 pkg.empty () ? 0 : &(symbol_table::insert (pkg, sid)), |
09f0cb9cac7d
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2787 input_line_number, current_input_column)); |
16113
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John W. Eaton <jwe@octave.org>
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diff
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|
2788 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2789 current_input_column += flex_yyleng (); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2790 |
9476 | 2791 return SUPERCLASSREF; |
2792 } | |
2793 | |
16113
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
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|
2794 int |
16293
57e87ddfee14
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2795 octave_base_lexer::handle_meta_identifier (void) |
9476 | 2796 { |
2797 std::string pkg; | |
16128
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localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
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changeset
|
2798 char *yytxt = flex_yytext (); |
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parents:
16126
diff
changeset
|
2799 std::string cls = strip_trailing_whitespace (yytxt).substr (1); |
9476 | 2800 size_t pos = cls.find ("."); |
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2801 |
9476 | 2802 if (pos != std::string::npos) |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2803 { |
9476 | 2804 pkg = cls.substr (pos).substr (1); |
2805 cls = cls.substr (0, pos - 1); | |
2806 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2807 |
9476 | 2808 int kw_token = is_keyword_token (cls) || is_keyword_token (pkg); |
2809 if (kw_token) | |
2810 { | |
2811 error ("class and package names may not be keywords"); | |
2812 return LEXICAL_ERROR; | |
2813 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
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|
2814 |
16320
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2815 symbol_table::scope_id sid = symtab_context.curr_scope (); |
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diff
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|
2816 |
09f0cb9cac7d
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diff
changeset
|
2817 push_token (new token |
09f0cb9cac7d
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diff
changeset
|
2818 (METAQUERY, |
09f0cb9cac7d
don't modify symbol table scope in the parser
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2819 cls.empty () ? 0 : &(symbol_table::insert (cls, sid)), |
09f0cb9cac7d
don't modify symbol table scope in the parser
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2820 pkg.empty () ? 0 : &(symbol_table::insert (pkg, sid)), |
09f0cb9cac7d
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2821 input_line_number, current_input_column)); |
16113
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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|
2822 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
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16129
diff
changeset
|
2823 current_input_column += flex_yyleng (); |
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2824 |
9476 | 2825 return METAQUERY; |
2826 } | |
2827 | |
767 | 2828 // Figure out exactly what kind of token to return when we have seen |
4238 | 2829 // an identifier. Handles keywords. Return -1 if the identifier |
2830 // should be ignored. | |
767 | 2831 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2832 int |
16293
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create base class for lexer
John W. Eaton <jwe@octave.org>
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16292
diff
changeset
|
2833 octave_base_lexer::handle_identifier (void) |
146 | 2834 { |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2835 char *yytxt = flex_yytext (); |
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diff
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|
2836 |
16257
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16255
diff
changeset
|
2837 std::string tok = yytxt; |
16128
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2838 |
2970 | 2839 // If we are expecting a structure element, avoid recognizing |
2840 // keywords and other special names and return STRUCT_ELT, which is | |
2841 // a string that is also a valid identifier. But first, we have to | |
2842 // decide whether to insert a comma. | |
747 | 2843 |
16113
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2844 if (looking_at_indirect_ref) |
1072 | 2845 { |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2846 push_token (new token (STRUCT_ELT, tok, input_line_number, |
16148
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16146
diff
changeset
|
2847 current_input_column)); |
16113
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changeset
|
2848 |
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changeset
|
2849 looking_for_object_index = true; |
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|
2850 |
16130
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diff
changeset
|
2851 current_input_column += flex_yyleng (); |
2819 | 2852 |
16783
0bf1d559b321
always set at_beginning_of_statement when recognizing keywords (bug #38758)
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16756
diff
changeset
|
2853 assert (! at_beginning_of_statement); |
0bf1d559b321
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changeset
|
2854 |
2970 | 2855 return STRUCT_ELT; |
1072 | 2856 } |
747 | 2857 |
16783
0bf1d559b321
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16756
diff
changeset
|
2858 // If tok is a keyword token, then is_keyword_token will set |
0bf1d559b321
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diff
changeset
|
2859 // at_beginning_of_statement. For example, if tok is and IF |
0bf1d559b321
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diff
changeset
|
2860 // token, then at_beginning_of_statement will be false. |
0bf1d559b321
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changeset
|
2861 |
4930 | 2862 int kw_token = is_keyword_token (tok); |
2863 | |
16113
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changeset
|
2864 if (looking_at_function_handle) |
4930 | 2865 { |
2866 if (kw_token) | |
10315
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changeset
|
2867 { |
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changeset
|
2868 error ("function handles may not refer to keywords"); |
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changeset
|
2869 |
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changeset
|
2870 return LEXICAL_ERROR; |
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changeset
|
2871 } |
4930 | 2872 else |
10315
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changeset
|
2873 { |
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changeset
|
2874 push_token (new token (FCN_HANDLE, tok, input_line_number, |
16148
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changeset
|
2875 current_input_column)); |
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|
2876 |
16130
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changeset
|
2877 current_input_column += flex_yyleng (); |
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changeset
|
2878 looking_for_object_index = true; |
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changeset
|
2879 |
16257
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changeset
|
2880 at_beginning_of_statement = false; |
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changeset
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2881 |
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changeset
|
2882 return FCN_HANDLE; |
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changeset
|
2883 } |
4930 | 2884 } |
2885 | |
5102 | 2886 // If we have a regular keyword, return it. |
7722
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2887 // Keywords can be followed by identifiers. |
146 | 2888 |
2889 if (kw_token) | |
2890 { | |
7722
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lex.l: allow tokens to be displayed when parsed
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parents:
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diff
changeset
|
2891 if (kw_token >= 0) |
10315
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2892 { |
16130
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localize use of yyleng with lexical_feedback member function
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parents:
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diff
changeset
|
2893 current_input_column += flex_yyleng (); |
16113
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2894 looking_for_object_index = false; |
10315
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2895 } |
7722
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2896 |
16783
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always set at_beginning_of_statement when recognizing keywords (bug #38758)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2897 // The call to is_keyword_token set at_beginning_of_statement. |
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parents:
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diff
changeset
|
2898 |
7722
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lex.l: allow tokens to be displayed when parsed
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parents:
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changeset
|
2899 return kw_token; |
146 | 2900 } |
2901 | |
17355
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2902 // Find the token in the symbol table. |
146 | 2903 |
16320
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don't modify symbol table scope in the parser
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parents:
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diff
changeset
|
2904 symbol_table::scope_id sid = symtab_context.curr_scope (); |
09f0cb9cac7d
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changeset
|
2905 |
09f0cb9cac7d
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diff
changeset
|
2906 token *tok_val = new token (NAME, &(symbol_table::insert (tok, sid)), |
16257
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1/10 commits reworking the lexer
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parents:
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diff
changeset
|
2907 input_line_number, current_input_column); |
db7f07b22b9b
1/10 commits reworking the lexer
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parents:
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diff
changeset
|
2908 |
16788
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correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2909 // 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:
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diff
changeset
|
2910 // |
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correctly parse expressions like pi+1 (bug #39301)
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diff
changeset
|
2911 // pi +1 |
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correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2912 // |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2913 // 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:
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diff
changeset
|
2914 // function call with the argument "+1". |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2915 |
16269
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parents:
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diff
changeset
|
2916 if (at_beginning_of_statement |
16360
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recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2917 && (! (is_variable (tok) |
16788
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correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2918 || tok == "e" || tok == "pi" |
16269
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parents:
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diff
changeset
|
2919 || tok == "I" || tok == "i" |
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changeset
|
2920 || tok == "J" || tok == "j" |
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parents:
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changeset
|
2921 || tok == "Inf" || tok == "inf" |
488b0fef52c5
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2922 || tok == "NaN" || tok == "nan"))) |
16257
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parents:
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diff
changeset
|
2923 tok_val->mark_may_be_command (); |
db7f07b22b9b
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diff
changeset
|
2924 |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2925 push_token (tok_val); |
146 | 2926 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2927 current_input_column += flex_yyleng (); |
146 | 2928 |
17355
f0edd6c752e9
don't convert "end" token to "__end__" for indexing
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2929 // 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:
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diff
changeset
|
2930 |
f0edd6c752e9
don't convert "end" token to "__end__" for indexing
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2931 if (tok != "end") |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2932 looking_for_object_index = true; |
9324
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2933 |
16257
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parents:
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diff
changeset
|
2934 at_beginning_of_statement = false; |
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parents:
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diff
changeset
|
2935 |
146 | 2936 return NAME; |
2937 } | |
2938 | |
16113
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2939 void |
16293
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2940 octave_base_lexer::maybe_warn_separator_insert (char sep) |
3388 | 2941 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2942 std::string nm = fcn_file_full_name; |
3388 | 2943 |
5794 | 2944 if (nm.empty ()) |
2945 warning_with_id ("Octave:separator-insert", | |
15466
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use ' instead of ` in error messages, warnings and most comments
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parents:
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diff
changeset
|
2946 "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:
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diff
changeset
|
2947 sep, input_line_number); |
5794 | 2948 else |
2949 warning_with_id ("Octave:separator-insert", | |
15466
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use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
2950 "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:
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diff
changeset
|
2951 sep, input_line_number, nm.c_str ()); |
3388 | 2952 } |
2953 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2954 void |
16293
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2955 octave_base_lexer::gripe_single_quote_string (void) |
3400 | 2956 { |
16203
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move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2957 std::string nm = fcn_file_full_name; |
3400 | 2958 |
5794 | 2959 if (nm.empty ()) |
2960 warning_with_id ("Octave:single-quote-string", | |
10315
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2961 "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:
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diff
changeset
|
2962 input_line_number); |
5794 | 2963 else |
2964 warning_with_id ("Octave:single-quote-string", | |
10315
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untabify src C++ source files
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parents:
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diff
changeset
|
2965 "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:
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diff
changeset
|
2966 input_line_number, nm.c_str ()); |
3400 | 2967 } |
2968 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2969 void |
16293
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parents:
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diff
changeset
|
2970 octave_base_lexer::gripe_matlab_incompatible (const std::string& msg) |
4037 | 2971 { |
16203
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2972 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
|
2973 |
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2974 if (nm.empty ()) |
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
2975 warning_with_id ("Octave:matlab-incompatible", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2976 "potential Matlab compatibility problem: %s", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2977 msg.c_str ()); |
8974
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
2978 else |
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
2979 warning_with_id ("Octave:matlab-incompatible", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2980 "potential Matlab compatibility problem: %s near line %d offile %s", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2981 msg.c_str (), input_line_number, nm.c_str ()); |
4037 | 2982 } |
2983 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2984 void |
16293
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create base class for lexer
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parents:
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diff
changeset
|
2985 octave_base_lexer::maybe_gripe_matlab_incompatible_comment (char c) |
4037 | 2986 { |
2987 if (c == '#') | |
2988 gripe_matlab_incompatible ("# used as comment character"); | |
2989 } | |
2990 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2991 void |
16293
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create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2992 octave_base_lexer::gripe_matlab_incompatible_continuation (void) |
4037 | 2993 { |
2994 gripe_matlab_incompatible ("\\ used as line continuation marker"); | |
2995 } | |
2996 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2997 void |
16293
57e87ddfee14
create base class for lexer
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parents:
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diff
changeset
|
2998 octave_base_lexer::gripe_matlab_incompatible_operator (const std::string& op) |
4037 | 2999 { |
3000 std::string t = op; | |
3001 int n = t.length (); | |
3002 if (t[n-1] == '\n') | |
3003 t.resize (n-1); | |
3004 gripe_matlab_incompatible (t + " used as operator"); | |
3005 } | |
16119
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3006 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3007 void |
16293
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create base class for lexer
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parents:
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diff
changeset
|
3008 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:
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diff
changeset
|
3009 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3010 YYSTYPE *lval = yyget_lval (scanner); |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3011 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
|
3012 tokens.push (tok); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3013 } |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3014 |
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localize use of yylval.tok_val in lexical_feedback member functions
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diff
changeset
|
3015 token * |
16293
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parents:
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diff
changeset
|
3016 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>
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diff
changeset
|
3017 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3018 YYSTYPE *lval = yyget_lval (scanner); |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3019 return lval->tok_val; |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3020 } |
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localize use of yylval.tok_val in lexical_feedback member functions
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16125
diff
changeset
|
3021 |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
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parents:
16125
diff
changeset
|
3022 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3023 octave_base_lexer::display_token (int tok) |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
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diff
changeset
|
3024 { |
b31eb56f4d84
maint: reorder class definitions in lex.ll
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16118
diff
changeset
|
3025 switch (tok) |
b31eb56f4d84
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
3026 { |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3027 case '=': std::cerr << "'='\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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16118
diff
changeset
|
3028 case ':': std::cerr << "':'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3029 case '-': std::cerr << "'-'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3030 case '+': std::cerr << "'+'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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16118
diff
changeset
|
3031 case '*': std::cerr << "'*'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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16118
diff
changeset
|
3032 case '/': std::cerr << "'/'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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16118
diff
changeset
|
3033 case ADD_EQ: std::cerr << "ADD_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3034 case SUB_EQ: std::cerr << "SUB_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3035 case MUL_EQ: std::cerr << "MUL_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3036 case DIV_EQ: std::cerr << "DIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3037 case LEFTDIV_EQ: std::cerr << "LEFTDIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3038 case POW_EQ: std::cerr << "POW_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3039 case EMUL_EQ: std::cerr << "EMUL_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3040 case EDIV_EQ: std::cerr << "EDIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3041 case ELEFTDIV_EQ: std::cerr << "ELEFTDIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3042 case EPOW_EQ: std::cerr << "EPOW_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3043 case AND_EQ: std::cerr << "AND_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3044 case OR_EQ: std::cerr << "OR_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3045 case LSHIFT_EQ: std::cerr << "LSHIFT_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3046 case RSHIFT_EQ: std::cerr << "RSHIFT_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3047 case LSHIFT: std::cerr << "LSHIFT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3048 case RSHIFT: std::cerr << "RSHIFT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3049 case EXPR_AND_AND: std::cerr << "EXPR_AND_AND\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3050 case EXPR_OR_OR: std::cerr << "EXPR_OR_OR\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3051 case EXPR_AND: std::cerr << "EXPR_AND\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3052 case EXPR_OR: std::cerr << "EXPR_OR\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3053 case EXPR_NOT: std::cerr << "EXPR_NOT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3054 case EXPR_LT: std::cerr << "EXPR_LT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3055 case EXPR_LE: std::cerr << "EXPR_LE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3056 case EXPR_EQ: std::cerr << "EXPR_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3057 case EXPR_NE: std::cerr << "EXPR_NE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3058 case EXPR_GE: std::cerr << "EXPR_GE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3059 case EXPR_GT: std::cerr << "EXPR_GT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3060 case LEFTDIV: std::cerr << "LEFTDIV\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3061 case EMUL: std::cerr << "EMUL\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3062 case EDIV: std::cerr << "EDIV\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3063 case ELEFTDIV: std::cerr << "ELEFTDIV\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3064 case EPLUS: std::cerr << "EPLUS\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3065 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>
parents:
16283
diff
changeset
|
3066 case HERMITIAN: std::cerr << "HERMITIAN\n"; break; |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3067 case TRANSPOSE: std::cerr << "TRANSPOSE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3068 case PLUS_PLUS: std::cerr << "PLUS_PLUS\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3069 case MINUS_MINUS: std::cerr << "MINUS_MINUS\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3070 case POW: std::cerr << "POW\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3071 case EPOW: std::cerr << "EPOW\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3072 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3073 case NUM: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3074 case IMAG_NUM: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3075 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3076 token *tok_val = current_token (); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3077 std::cerr << (tok == NUM ? "NUM" : "IMAG_NUM") |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3078 << " [" << tok_val->number () << "]\n"; |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3079 } |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3080 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3081 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3082 case STRUCT_ELT: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3083 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3084 token *tok_val = current_token (); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3085 std::cerr << "STRUCT_ELT [" << tok_val->text () << "]\n"; |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3086 } |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3087 break; |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3088 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3089 case NAME: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3090 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3091 token *tok_val = current_token (); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3092 symbol_table::symbol_record *sr = tok_val->sym_rec (); |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3093 std::cerr << "NAME"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3094 if (sr) |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3095 std::cerr << " [" << sr->name () << "]"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3096 std::cerr << "\n"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3097 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3098 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3099 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3100 case END: std::cerr << "END\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3101 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3102 case DQ_STRING: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3103 case SQ_STRING: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3104 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3105 token *tok_val = current_token (); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3106 |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3107 std::cerr << (tok == DQ_STRING ? "DQ_STRING" : "SQ_STRING") |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3108 << " [" << tok_val->text () << "]\n"; |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3109 } |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3110 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3111 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3112 case FOR: std::cerr << "FOR\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3113 case WHILE: std::cerr << "WHILE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3114 case DO: std::cerr << "DO\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3115 case UNTIL: std::cerr << "UNTIL\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3116 case IF: std::cerr << "IF\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3117 case ELSEIF: std::cerr << "ELSEIF\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3118 case ELSE: std::cerr << "ELSE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3119 case SWITCH: std::cerr << "SWITCH\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3120 case CASE: std::cerr << "CASE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3121 case OTHERWISE: std::cerr << "OTHERWISE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3122 case BREAK: std::cerr << "BREAK\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3123 case CONTINUE: std::cerr << "CONTINUE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3124 case FUNC_RET: std::cerr << "FUNC_RET\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3125 case UNWIND: std::cerr << "UNWIND\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3126 case CLEANUP: std::cerr << "CLEANUP\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3127 case TRY: std::cerr << "TRY\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3128 case CATCH: std::cerr << "CATCH\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3129 case GLOBAL: std::cerr << "GLOBAL\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3130 case PERSISTENT: std::cerr << "PERSISTENT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3131 case FCN_HANDLE: std::cerr << "FCN_HANDLE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3132 case END_OF_INPUT: std::cerr << "END_OF_INPUT\n\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3133 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
|
3134 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
|
3135 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
|
3136 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
|
3137 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
|
3138 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
|
3139 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
|
3140 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
|
3141 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
|
3142 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
|
3143 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
|
3144 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
|
3145 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
|
3146 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
|
3147 default: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3148 { |
16166
cb80b1d062b1
don't attempt to print unprintable tokens
John W. Eaton <jwe@octave.org>
parents:
16164
diff
changeset
|
3149 if (tok < 256 && tok > 31) |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3150 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
|
3151 else |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3152 std::cerr << "UNKNOWN(" << tok << ")\n"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3153 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3154 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3155 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3156 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3157 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3158 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3159 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
|
3160 { |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3161 error (msg); |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3162 |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3163 OCTAVE_QUIT; |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3164 |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3165 yy_fatal_error (msg, scanner); |
16129
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3166 } |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3167 |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3168 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3169 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
|
3170 { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3171 if (lexer_debug_flag) |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3172 { |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3173 std::cerr << std::endl; |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3174 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3175 display_start_state (); |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3176 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3177 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
|
3178 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
|
3179 } |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3180 } |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3181 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3182 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3183 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
|
3184 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3185 OCTAVE_YYG; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3186 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3187 start_state_stack.push (state); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3188 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3189 BEGIN (start_state ()); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3190 } |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3191 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3192 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3193 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
|
3194 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3195 OCTAVE_YYG; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3196 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3197 start_state_stack.pop (); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3198 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3199 BEGIN (start_state ()); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3200 } |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3201 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3202 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3203 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
|
3204 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3205 while (! start_state_stack.empty ()) |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3206 start_state_stack.pop (); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3207 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3208 push_start_state (INITIAL); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3209 } |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3210 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3211 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3212 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
|
3213 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3214 std::cerr << "S: "; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3215 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3216 switch (start_state ()) |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3217 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3218 case INITIAL: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3219 std::cerr << "INITIAL" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3220 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3221 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3222 case COMMAND_START: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3223 std::cerr << "COMMAND_START" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3224 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3225 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3226 case MATRIX_START: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3227 std::cerr << "MATRIX_START" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3228 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3229 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3230 case INPUT_FILE_START: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3231 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
|
3232 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3233 |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3234 case BLOCK_COMMENT_START: |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3235 std::cerr << "BLOCK_COMMENT_START" << std::endl; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3236 break; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3237 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3238 case LINE_COMMENT_START: |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3239 std::cerr << "LINE_COMMENT_START" << std::endl; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3240 break; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3241 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3242 case DQ_STRING_START: |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3243 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
|
3244 break; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3245 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3246 case SQ_STRING_START: |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3247 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
|
3248 break; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3249 |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3250 default: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3251 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
|
3252 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3253 } |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3254 } |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3255 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3256 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3257 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
|
3258 { |
16263
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
3259 lexer_debug (pattern); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
3260 |
16275
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
3261 return handle_op_internal (tok, bos, true); |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3262 } |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3263 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3264 int |
16293
57e87ddfee14
create base class for lexer
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3265 octave_base_lexer::handle_incompatible_op (const char *pattern, int tok, |
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3266 bool bos) |
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3267 { |
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3268 lexer_debug (pattern); |
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3269 |
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3270 return handle_op_internal (tok, bos, false); |
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3271 } |
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3272 |
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3273 bool |
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3274 octave_base_lexer::maybe_unput_comma_before_unary_op (int tok) |
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3275 { |
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3276 int prev_tok = previous_token_value (); |
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3277 |
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3278 bool unput_comma = false; |
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3279 |
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3280 if (whitespace_is_significant () && space_follows_previous_token ()) |
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3281 { |
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3282 int c = text_yyinput (); |
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3283 xunput (c); |
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3284 |
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3285 bool space_after = (c == ' ' || c == '\t'); |
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3286 |
16267
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3287 if (! (prev_tok == '[' || prev_tok == '{' |
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3288 || previous_token_is_binop () |
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3289 || ((tok == '+' || tok == '-') && space_after))) |
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3290 unput_comma = true; |
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3291 } |
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3292 |
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3293 return unput_comma; |
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3294 } |
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3295 |
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3296 int |
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3297 octave_base_lexer::handle_unary_op (int tok, bool bos) |
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3298 { |
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3299 return maybe_unput_comma_before_unary_op (tok) |
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3300 ? -1 : handle_op_internal (tok, bos, true); |
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3301 } |
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3302 |
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3303 int |
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3304 octave_base_lexer::handle_incompatible_unary_op (int tok, bool bos) |
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3305 { |
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3306 return maybe_unput_comma_before_unary_op (tok) |
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3307 ? -1 : handle_op_internal (tok, bos, false); |
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3308 } |
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3309 |
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3310 int |
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3311 octave_base_lexer::handle_op_internal (int tok, bool bos, bool compat) |
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3312 { |
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3313 if (! compat) |
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3314 gripe_matlab_incompatible_operator (flex_yytext ()); |
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3315 |
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3316 push_token (new token (tok, input_line_number, current_input_column)); |
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3317 |
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3318 current_input_column += flex_yyleng (); |
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3319 looking_for_object_index = false; |
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3320 at_beginning_of_statement = bos; |
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3321 |
16643
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3322 return count_token_internal (tok); |
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3323 } |
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3324 |
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|
3325 int |
16293
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3326 octave_base_lexer::handle_token (const std::string& name, int tok) |
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3327 { |
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3328 token *tok_val = new token (tok, name, input_line_number, |
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3329 current_input_column); |
16231
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3330 |
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3331 return handle_token (tok, tok_val); |
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3332 } |
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3333 |
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|
3334 int |
16293
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3335 octave_base_lexer::handle_token (int tok, token *tok_val) |
16229
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3336 { |
16231
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|
3337 if (! tok_val) |
16255
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|
3338 tok_val = new token (tok, input_line_number, current_input_column); |
16231
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3339 |
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3340 push_token (tok_val); |
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3341 |
16229
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3342 current_input_column += flex_yyleng (); |
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3343 |
16257
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3344 return count_token_internal (tok); |
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3345 } |
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|
3346 |
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|
3347 int |
16293
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3348 octave_base_lexer::count_token (int tok) |
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3349 { |
16257
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|
3350 token *tok_val = new token (tok, input_line_number, current_input_column); |
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3351 |
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|
3352 push_token (tok_val); |
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|
3353 |
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|
3354 return count_token_internal (tok); |
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|
3355 } |
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|
3356 |
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changeset
|
3357 int |
16293
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|
3358 octave_base_lexer::count_token_internal (int tok) |
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3359 { |
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|
3360 if (tok != '\n') |
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3361 { |
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|
3362 Vtoken_count++; |
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3363 token_count++; |
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3364 } |
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|
3365 |
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|
3366 return show_token (tok); |
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3367 } |
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|
3368 |
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|
3369 int |
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3370 octave_base_lexer::show_token (int tok) |
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3371 { |
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|
3372 if (Vdisplay_tokens) |
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|
3373 display_token (tok); |
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|
3374 |
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|
3375 if (lexer_debug_flag) |
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3376 { |
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|
3377 std::cerr << "R: "; |
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|
3378 display_token (tok); |
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3379 std::cerr << std::endl; |
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3380 } |
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|
3381 |
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|
3382 return tok; |
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3383 } |
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diff
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|
3384 |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
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|
3385 int |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3386 octave_lexer::fill_flex_buffer (char *buf, unsigned max_size) |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
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16292
diff
changeset
|
3387 { |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3388 int status = 0; |
57e87ddfee14
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John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3389 |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3390 if (input_buf.empty ()) |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
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|
3391 { |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3392 bool eof = false; |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3393 current_input_line = input_reader.get_input (eof); |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3394 input_buf.fill (current_input_line, eof); |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
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diff
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|
3395 } |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3396 |
57e87ddfee14
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John W. Eaton <jwe@octave.org>
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diff
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|
3397 if (! input_buf.empty ()) |
57e87ddfee14
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John W. Eaton <jwe@octave.org>
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diff
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|
3398 status = input_buf.copy_chunk (buf, max_size); |
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diff
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|
3399 else |
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diff
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|
3400 { |
57e87ddfee14
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diff
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|
3401 status = YY_NULL; |
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diff
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|
3402 |
57e87ddfee14
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diff
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|
3403 if (! input_buf.at_eof ()) |
57e87ddfee14
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|
3404 fatal_error ("octave_base_lexer::fill_flex_buffer failed"); |
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diff
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|
3405 } |
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parents:
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diff
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|
3406 |
57e87ddfee14
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diff
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|
3407 return status; |
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diff
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|
3408 } |
16294
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
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diff
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|
3409 |
0925d1f6875e
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parents:
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diff
changeset
|
3410 int |
0925d1f6875e
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diff
changeset
|
3411 octave_push_lexer::fill_flex_buffer (char *buf, unsigned max_size) |
0925d1f6875e
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John W. Eaton <jwe@octave.org>
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diff
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|
3412 { |
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John W. Eaton <jwe@octave.org>
parents:
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diff
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|
3413 int status = 0; |
0925d1f6875e
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
3414 |
0925d1f6875e
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diff
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|
3415 if (input_buf.empty () && ! input_buf.at_eof ()) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3416 input_buf.fill (std::string (1, static_cast<char> (1)), false); |
0925d1f6875e
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parents:
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diff
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|
3417 |
0925d1f6875e
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John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3418 if (! input_buf.empty ()) |
0925d1f6875e
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parents:
16293
diff
changeset
|
3419 status = input_buf.copy_chunk (buf, max_size); |
0925d1f6875e
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parents:
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diff
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|
3420 else |
0925d1f6875e
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3421 { |
0925d1f6875e
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John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3422 status = YY_NULL; |
0925d1f6875e
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
3423 |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3424 if (! input_buf.at_eof ()) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3425 fatal_error ("octave_base_lexer::fill_flex_buffer failed"); |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3426 } |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3427 |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3428 return status; |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3429 } |
18224
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
3430 |