Mercurial > octave-nkf
annotate libinterp/parse-tree/lex.ll @ 16118:f8e463523229
move more static lexer helper functions to lexical_feedback class
* lex.h, lex.ll (display_token, lexer_debug): Declare as members of
lexical_feedback class. Change all callers.
(display_state): New argument, STATE.
(lexer_debug): Pass YYSTATE to display_state.
author | John W. Eaton <jwe@octave.org> |
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date | Tue, 26 Feb 2013 11:50:41 -0500 |
parents | 771186909285 |
children | b31eb56f4d84 |
rev | line source |
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1994 | 1 /* |
1 | 2 |
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maint: update copyright notices for 2012
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3 Copyright (C) 1993-2012 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 | |
4753 | 23 %option prefix = "octave_" |
24 | |
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25 %top { |
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26 #ifdef HAVE_CONFIG_H |
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27 #include <config.h> |
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28 #endif |
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30 } |
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31 |
4208 | 32 %s COMMAND_START |
33 %s MATRIX_START | |
4240 | 34 |
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35 %x SCRIPT_FILE_BEGIN |
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36 %x FUNCTION_FILE_BEGIN |
1 | 37 |
38 %{ | |
240 | 39 |
1341 | 40 #include <cctype> |
41 #include <cstring> | |
42 | |
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43 #include <iostream> |
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44 #include <set> |
5765 | 45 #include <sstream> |
1823 | 46 #include <string> |
4214 | 47 #include <stack> |
1823 | 48 |
4093 | 49 #include <sys/types.h> |
50 #include <unistd.h> | |
51 | |
2926 | 52 #include "cmd-edit.h" |
4153 | 53 #include "quit.h" |
4910 | 54 #include "lo-mappers.h" |
2926 | 55 |
1497 | 56 // These would be alphabetical, but y.tab.h must be included before |
57 // oct-gperf.h and y.tab.h must be included after token.h and the tree | |
58 // class declarations. We can't include y.tab.h in oct-gperf.h | |
59 // because it may not be protected to allow it to be included multiple | |
60 // times. | |
61 | |
4264 | 62 #include "Cell.h" |
3665 | 63 #include "comment-list.h" |
2181 | 64 #include "defun.h" |
1355 | 65 #include "error.h" |
4910 | 66 #include "gripes.h" |
1351 | 67 #include "input.h" |
1355 | 68 #include "lex.h" |
2891 | 69 #include "ov.h" |
1355 | 70 #include "parse.h" |
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71 #include "parse-private.h" |
2987 | 72 #include "pt-all.h" |
2891 | 73 #include "symtab.h" |
74 #include "token.h" | |
75 #include "toplev.h" | |
1355 | 76 #include "utils.h" |
77 #include "variables.h" | |
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78 #include <oct-parse.h> |
2492 | 79 #include <oct-gperf.h> |
1 | 80 |
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81 #if defined (GNULIB_NAMESPACE) |
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82 // Calls to the following functions appear in the generated output from |
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83 // flex without the namespace tag. Redefine them so we will use them |
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84 // via the gnulib namespace. |
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85 #define fprintf GNULIB_NAMESPACE::fprintf |
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86 #define fwrite GNULIB_NAMESPACE::fwrite |
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87 #define isatty GNULIB_NAMESPACE::isatty |
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88 #define malloc GNULIB_NAMESPACE::malloc |
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89 #define realloc GNULIB_NAMESPACE::realloc |
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90 #endif |
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91 |
2716 | 92 #if ! (defined (FLEX_SCANNER) \ |
93 && defined (YY_FLEX_MAJOR_VERSION) && YY_FLEX_MAJOR_VERSION >= 2 \ | |
94 && defined (YY_FLEX_MINOR_VERSION) && YY_FLEX_MINOR_VERSION >= 5) | |
95 #error lex.l requires flex version 2.5.4 or later | |
96 #endif | |
97 | |
4753 | 98 #define yylval octave_lval |
99 | |
100 // Arrange to get input via readline. | |
101 | |
102 #ifdef YY_INPUT | |
103 #undef YY_INPUT | |
104 #endif | |
105 #define YY_INPUT(buf, result, max_size) \ | |
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106 result = octave_read (buf, max_size) |
4753 | 107 |
108 // Try to avoid crashing out completely on fatal scanner errors. | |
109 // The call to yy_fatal_error should never happen, but it avoids a | |
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110 // 'static function defined but not used' warning from gcc. |
4753 | 111 |
112 #ifdef YY_FATAL_ERROR | |
113 #undef YY_FATAL_ERROR | |
114 #endif | |
115 #define YY_FATAL_ERROR(msg) \ | |
116 do \ | |
117 { \ | |
118 error (msg); \ | |
119 OCTAVE_QUIT; \ | |
120 yy_fatal_error (msg); \ | |
121 } \ | |
122 while (0) | |
123 | |
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124 #define DISPLAY_TOK_AND_RETURN(tok) \ |
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125 do \ |
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126 { \ |
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127 int tok_val = tok; \ |
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128 if (Vdisplay_tokens) \ |
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129 curr_lexer->display_token (tok_val); \ |
8535 | 130 if (lexer_debug_flag) \ |
131 { \ | |
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132 std::cerr << "R: "; \ |
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133 curr_lexer->display_token (tok_val); \ |
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134 std::cerr << std::endl; \ |
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135 } \ |
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136 return tok_val; \ |
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137 } \ |
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138 while (0) |
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139 |
4910 | 140 #define COUNT_TOK_AND_RETURN(tok) \ |
141 do \ | |
142 { \ | |
143 Vtoken_count++; \ | |
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144 DISPLAY_TOK_AND_RETURN (tok); \ |
4910 | 145 } \ |
146 while (0) | |
147 | |
4753 | 148 #define TOK_RETURN(tok) \ |
149 do \ | |
150 { \ | |
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151 curr_lexer->current_input_column += yyleng; \ |
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152 curr_lexer->quote_is_transpose = false; \ |
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153 curr_lexer->convert_spaces_to_comma = true; \ |
4910 | 154 COUNT_TOK_AND_RETURN (tok); \ |
4753 | 155 } \ |
156 while (0) | |
157 | |
158 #define TOK_PUSH_AND_RETURN(name, tok) \ | |
159 do \ | |
160 { \ | |
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161 yylval.tok_val = new token (name, curr_lexer->input_line_number, \ |
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162 curr_lexer->current_input_column); \ |
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163 curr_lexer->token_stack.push (yylval.tok_val); \ |
4753 | 164 TOK_RETURN (tok); \ |
165 } \ | |
166 while (0) | |
167 | |
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168 #define BIN_OP_RETURN_INTERNAL(tok, convert, bos, qit) \ |
4753 | 169 do \ |
170 { \ | |
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171 yylval.tok_val = new token (curr_lexer->input_line_number, \ |
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172 curr_lexer->current_input_column); \ |
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173 curr_lexer->token_stack.push (yylval.tok_val); \ |
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174 curr_lexer->current_input_column += yyleng; \ |
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175 curr_lexer->quote_is_transpose = qit; \ |
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176 curr_lexer->convert_spaces_to_comma = convert; \ |
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177 curr_lexer->looking_for_object_index = false; \ |
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178 curr_lexer->at_beginning_of_statement = bos; \ |
4910 | 179 COUNT_TOK_AND_RETURN (tok); \ |
4753 | 180 } \ |
181 while (0) | |
182 | |
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183 #define XBIN_OP_RETURN_INTERNAL(tok, convert, bos, qit) \ |
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184 do \ |
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185 { \ |
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186 curr_lexer->gripe_matlab_incompatible_operator (yytext); \ |
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187 BIN_OP_RETURN_INTERNAL (tok, convert, bos, qit); \ |
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188 } \ |
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189 while (0) |
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190 |
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191 #define BIN_OP_RETURN(tok, convert, bos) \ |
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192 do \ |
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193 { \ |
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194 BIN_OP_RETURN_INTERNAL (tok, convert, bos, false); \ |
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195 } \ |
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196 while (0) |
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197 |
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198 #define XBIN_OP_RETURN(tok, convert, bos) \ |
4753 | 199 do \ |
200 { \ | |
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201 curr_lexer->gripe_matlab_incompatible_operator (yytext); \ |
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202 BIN_OP_RETURN (tok, convert, bos); \ |
4753 | 203 } \ |
204 while (0) | |
205 | |
8535 | 206 #define LEXER_DEBUG(pattern) \ |
207 do \ | |
208 { \ | |
209 if (lexer_debug_flag) \ | |
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210 curr_lexer->lexer_debug (pattern, yytext); \ |
8535 | 211 } \ |
212 while (0) | |
213 | |
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214 // The state of the lexer. |
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215 lexical_feedback *curr_lexer = 0; |
1826 | 216 |
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217 static bool Vdisplay_tokens = false; |
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218 |
4910 | 219 static unsigned int Vtoken_count = 0; |
220 | |
8535 | 221 // Internal variable for lexer debugging state. |
222 static bool lexer_debug_flag = false; | |
223 | |
146 | 224 // Forward declarations for functions defined at the bottom of this |
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225 // file that are needed inside the lexer actions. |
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226 |
3523 | 227 static std::string strip_trailing_whitespace (char *s); |
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228 static int octave_read (char *buf, unsigned int max_size); |
1 | 229 |
230 %} | |
231 | |
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232 D [0-9] |
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233 S [ \t] |
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234 NL ((\n)|(\r)|(\r\n)) |
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235 SNL ({S}|{NL}) |
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236 EL (\.\.\.) |
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237 BS (\\) |
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238 CONT ({EL}|{BS}) |
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239 Im [iIjJ] |
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240 CCHAR [#%] |
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241 COMMENT ({CCHAR}.*{NL}) |
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242 SNLCMT ({SNL}|{COMMENT}) |
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243 NOT ((\~)|(\!)) |
4037 | 244 POW ((\*\*)|(\^)) |
245 EPOW (\.{POW}) | |
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246 IDENT ([_$a-zA-Z][_$a-zA-Z0-9]*) |
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247 EXPON ([DdEe][+-]?{D}+) |
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248 NUMBER (({D}+\.?{D}*{EXPON}?)|(\.{D}+{EXPON}?)|(0[xX][0-9a-fA-F]+)) |
1 | 249 %% |
250 | |
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251 %{ |
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252 // Make script and function files start with a bogus token. This makes |
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253 // the parser go down a special path. |
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254 %} |
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255 |
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256 <SCRIPT_FILE_BEGIN>. { |
8535 | 257 LEXER_DEBUG ("<SCRIPT_FILE_BEGIN>."); |
258 | |
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259 BEGIN (INITIAL); |
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260 curr_lexer->xunput (yytext[0], yytext); |
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261 COUNT_TOK_AND_RETURN (SCRIPT_FILE); |
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262 } |
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263 |
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264 <FUNCTION_FILE_BEGIN>. { |
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265 LEXER_DEBUG ("<FUNCTION_FILE_BEGIN>."); |
8535 | 266 |
4323 | 267 BEGIN (INITIAL); |
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268 curr_lexer->xunput (yytext[0], yytext); |
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269 COUNT_TOK_AND_RETURN (FUNCTION_FILE); |
4238 | 270 } |
271 | |
968 | 272 %{ |
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273 // Help and other command-style functions. |
968 | 274 %} |
275 | |
4208 | 276 <COMMAND_START>{NL} { |
8535 | 277 LEXER_DEBUG ("<COMMAND_START>{NL}"); |
278 | |
4323 | 279 BEGIN (INITIAL); |
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280 curr_lexer->input_line_number++; |
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281 curr_lexer->current_input_column = 1; |
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282 |
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283 curr_lexer->quote_is_transpose = false; |
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284 curr_lexer->convert_spaces_to_comma = true; |
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285 curr_lexer->looking_for_object_index = false; |
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286 curr_lexer->at_beginning_of_statement = true; |
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287 |
4910 | 288 COUNT_TOK_AND_RETURN ('\n'); |
967 | 289 } |
1 | 290 |
4208 | 291 <COMMAND_START>[\;\,] { |
8535 | 292 LEXER_DEBUG ("<COMMAND_START>[\\;\\,]"); |
293 | |
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294 curr_lexer->looking_for_object_index = false; |
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295 curr_lexer->at_beginning_of_statement = true; |
5102 | 296 |
297 BEGIN (INITIAL); | |
298 | |
299 if (strcmp (yytext, ",") == 0) | |
300 TOK_RETURN (','); | |
967 | 301 else |
5102 | 302 TOK_RETURN (';'); |
967 | 303 } |
1 | 304 |
4208 | 305 <COMMAND_START>[\"\'] { |
8535 | 306 LEXER_DEBUG ("<COMMAND_START>[\\\"\\']"); |
307 | |
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308 curr_lexer->at_beginning_of_statement = false; |
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309 |
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310 curr_lexer->current_input_column++; |
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311 int tok = curr_lexer->handle_string (yytext[0]); |
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312 |
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313 COUNT_TOK_AND_RETURN (tok); |
975 | 314 } |
315 | |
4923 | 316 <COMMAND_START>[^#% \t\r\n\;\,\"\'][^ \t\r\n\;\,]*{S}* { |
8535 | 317 LEXER_DEBUG ("<COMMAND_START>[^#% \\t\\r\\n\\;\\,\\\"\\'][^ \\t\\r\\n\\;\\,]*{S}*"); |
318 | |
3523 | 319 std::string tok = strip_trailing_whitespace (yytext); |
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320 |
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321 curr_lexer->looking_for_object_index = false; |
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322 curr_lexer->at_beginning_of_statement = false; |
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323 |
5279 | 324 TOK_PUSH_AND_RETURN (tok, SQ_STRING); |
967 | 325 } |
1 | 326 |
968 | 327 %{ |
1 | 328 // For this and the next two rules, we're looking at ']', and we |
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329 // need to know if the next token is '=' or '=='. |
1 | 330 // |
331 // It would have been so much easier if the delimiters were simply | |
332 // different for the expression on the left hand side of the equals | |
333 // operator. | |
971 | 334 // |
335 // It's also a pain in the ass to decide whether to insert a comma | |
336 // after seeing a ']' character... | |
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337 |
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338 // FIXME -- we need to handle block comments here. |
968 | 339 %} |
340 | |
4208 | 341 <MATRIX_START>{SNLCMT}*\]{S}* { |
8535 | 342 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*\\]{S}*"); |
343 | |
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344 curr_lexer->scan_for_comments (yytext); |
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345 curr_lexer->fixup_column_count (yytext); |
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346 |
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347 curr_lexer->looking_at_object_index.pop_front (); |
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348 |
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349 curr_lexer->looking_for_object_index = true; |
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350 curr_lexer->at_beginning_of_statement = false; |
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351 |
1001 | 352 int c = yytext[yyleng-1]; |
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353 bool cont_is_spc = (curr_lexer->eat_continuation () != lexical_feedback::NO_WHITESPACE); |
4608 | 354 bool spc_gobbled = (cont_is_spc || c == ' ' || c == '\t'); |
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355 int tok_to_return = curr_lexer->handle_close_bracket (spc_gobbled, ']'); |
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356 |
5345 | 357 if (spc_gobbled) |
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358 curr_lexer->xunput (' ', yytext); |
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359 |
5345 | 360 COUNT_TOK_AND_RETURN (tok_to_return); |
4608 | 361 } |
362 | |
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363 %{ |
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364 // FIXME -- we need to handle block comments here. |
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365 %} |
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366 |
4608 | 367 <MATRIX_START>{SNLCMT}*\}{S}* { |
8535 | 368 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*\\}{S}*"); |
369 | |
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370 curr_lexer->scan_for_comments (yytext); |
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371 curr_lexer->fixup_column_count (yytext); |
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372 |
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373 curr_lexer->looking_at_object_index.pop_front (); |
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374 |
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375 curr_lexer->looking_for_object_index = true; |
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376 curr_lexer->at_beginning_of_statement = false; |
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377 |
4608 | 378 int c = yytext[yyleng-1]; |
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379 bool cont_is_spc = (curr_lexer->eat_continuation () != lexical_feedback::NO_WHITESPACE); |
4608 | 380 bool spc_gobbled = (cont_is_spc || c == ' ' || c == '\t'); |
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381 int tok_to_return = curr_lexer->handle_close_bracket (spc_gobbled, '}'); |
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382 |
5345 | 383 if (spc_gobbled) |
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384 curr_lexer->xunput (' ', yytext); |
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385 |
5345 | 386 COUNT_TOK_AND_RETURN (tok_to_return); |
967 | 387 } |
1 | 388 |
968 | 389 %{ |
1088 | 390 // Commas are element separators in matrix constants. If we don't |
391 // check for continuations here we can end up inserting too many | |
392 // commas. | |
968 | 393 %} |
394 | |
4208 | 395 <MATRIX_START>{S}*\,{S}* { |
8535 | 396 LEXER_DEBUG ("<MATRIX_START>{S}*\\,{S}*"); |
397 | |
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398 curr_lexer->current_input_column += yyleng; |
3388 | 399 |
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400 int tmp = curr_lexer->eat_continuation (); |
3388 | 401 |
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402 curr_lexer->quote_is_transpose = false; |
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403 curr_lexer->convert_spaces_to_comma = true; |
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404 curr_lexer->looking_for_object_index = false; |
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405 curr_lexer->at_beginning_of_statement = false; |
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406 |
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407 if (! curr_lexer->looking_at_object_index.front ()) |
3388 | 408 { |
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409 if ((tmp & lexical_feedback::NEWLINE) == lexical_feedback::NEWLINE) |
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410 { |
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411 curr_lexer->maybe_warn_separator_insert (';'); |
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412 |
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413 curr_lexer->xunput (';', yytext); |
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414 } |
3388 | 415 } |
416 | |
4910 | 417 COUNT_TOK_AND_RETURN (','); |
967 | 418 } |
1 | 419 |
968 | 420 %{ |
421 // In some cases, spaces in matrix constants can turn into commas. | |
422 // If commas are required, spaces are not important in matrix | |
1088 | 423 // constants so we just eat them. If we don't check for continuations |
424 // here we can end up inserting too many commas. | |
968 | 425 %} |
430 | 426 |
4208 | 427 <MATRIX_START>{S}+ { |
8535 | 428 LEXER_DEBUG ("<MATRIX_START>{S}+"); |
429 | |
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430 curr_lexer->current_input_column += yyleng; |
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431 |
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432 curr_lexer->at_beginning_of_statement = false; |
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433 |
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434 int tmp = curr_lexer->eat_continuation (); |
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435 |
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436 if (! curr_lexer->looking_at_object_index.front ()) |
967 | 437 { |
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438 bool bin_op = curr_lexer->next_token_is_bin_op (true); |
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439 bool postfix_un_op = curr_lexer->next_token_is_postfix_unary_op (true); |
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440 bool sep_op = curr_lexer->next_token_is_sep_op (); |
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441 |
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442 if (! (postfix_un_op || bin_op || sep_op) |
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443 && curr_lexer->nesting_level.is_bracket_or_brace () |
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444 && curr_lexer->convert_spaces_to_comma) |
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445 { |
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446 if ((tmp & lexical_feedback::NEWLINE) == lexical_feedback::NEWLINE) |
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447 { |
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448 curr_lexer->maybe_warn_separator_insert (';'); |
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449 |
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450 curr_lexer->xunput (';', yytext); |
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451 } |
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452 |
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453 curr_lexer->quote_is_transpose = false; |
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454 curr_lexer->convert_spaces_to_comma = true; |
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455 curr_lexer->looking_for_object_index = false; |
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456 |
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457 curr_lexer->maybe_warn_separator_insert (','); |
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458 |
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459 COUNT_TOK_AND_RETURN (','); |
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460 } |
967 | 461 } |
462 } | |
430 | 463 |
968 | 464 %{ |
1088 | 465 // Semicolons are handled as row seprators in matrix constants. If we |
466 // don't eat whitespace here we can end up inserting too many | |
467 // semicolons. | |
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468 |
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469 // FIXME -- we need to handle block comments here. |
968 | 470 %} |
471 | |
4208 | 472 <MATRIX_START>{SNLCMT}*;{SNLCMT}* { |
8535 | 473 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*;{SNLCMT}*"); |
474 | |
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475 curr_lexer->scan_for_comments (yytext); |
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476 curr_lexer->fixup_column_count (yytext); |
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477 curr_lexer->eat_whitespace (); |
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478 |
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479 curr_lexer->quote_is_transpose = false; |
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480 curr_lexer->convert_spaces_to_comma = true; |
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481 curr_lexer->looking_for_object_index = false; |
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482 curr_lexer->at_beginning_of_statement = false; |
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483 |
4910 | 484 COUNT_TOK_AND_RETURN (';'); |
967 | 485 } |
486 | |
968 | 487 %{ |
1088 | 488 // In some cases, new lines can also become row separators. If we |
489 // don't eat whitespace here we can end up inserting too many | |
490 // semicolons. | |
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491 |
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492 // FIXME -- we need to handle block comments here. |
985 | 493 %} |
494 | |
4208 | 495 <MATRIX_START>{S}*{COMMENT}{SNLCMT}* | |
496 <MATRIX_START>{S}*{NL}{SNLCMT}* { | |
8535 | 497 LEXER_DEBUG ("<MATRIX_START>{S}*{COMMENT}{SNLCMT}*|<MATRIX_START>{S}*{NL}{SNLCMT}*"); |
498 | |
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499 curr_lexer->scan_for_comments (yytext); |
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500 curr_lexer->fixup_column_count (yytext); |
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501 curr_lexer->eat_whitespace (); |
3388 | 502 |
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503 curr_lexer->quote_is_transpose = false; |
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504 curr_lexer->convert_spaces_to_comma = true; |
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505 curr_lexer->at_beginning_of_statement = false; |
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506 |
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507 if (curr_lexer->nesting_level.none ()) |
4476 | 508 return LEXICAL_ERROR; |
985 | 509 |
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510 if (! curr_lexer->looking_at_object_index.front () |
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511 && curr_lexer->nesting_level.is_bracket_or_brace ()) |
3388 | 512 { |
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513 curr_lexer->maybe_warn_separator_insert (';'); |
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514 |
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515 COUNT_TOK_AND_RETURN (';'); |
985 | 516 } |
517 } | |
518 | |
967 | 519 \[{S}* { |
8535 | 520 LEXER_DEBUG ("\\[{S}*"); |
521 | |
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522 curr_lexer->nesting_level.bracket (); |
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523 |
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524 curr_lexer->looking_at_object_index.push_front (false); |
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525 |
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526 curr_lexer->current_input_column += yyleng; |
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527 curr_lexer->quote_is_transpose = false; |
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528 curr_lexer->convert_spaces_to_comma = true; |
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529 curr_lexer->looking_for_object_index = false; |
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530 curr_lexer->at_beginning_of_statement = false; |
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531 |
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532 if (curr_lexer->defining_func |
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533 && ! curr_lexer->parsed_function_name.top ()) |
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534 curr_lexer->looking_at_return_list = true; |
5615 | 535 else |
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536 curr_lexer->looking_at_matrix_or_assign_lhs = true; |
5615 | 537 |
975 | 538 promptflag--; |
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539 curr_lexer->eat_whitespace (); |
975 | 540 |
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541 curr_lexer->bracketflag++; |
5102 | 542 BEGIN (MATRIX_START); |
543 COUNT_TOK_AND_RETURN ('['); | |
967 | 544 } |
1 | 545 |
968 | 546 \] { |
8535 | 547 LEXER_DEBUG ("\\]"); |
548 | |
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549 curr_lexer->nesting_level.remove (); |
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550 |
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551 curr_lexer->looking_at_object_index.pop_front (); |
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552 |
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553 curr_lexer->looking_for_object_index = true; |
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554 curr_lexer->at_beginning_of_statement = false; |
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555 |
5102 | 556 TOK_RETURN (']'); |
968 | 557 } |
558 | |
559 %{ | |
560 // Imaginary numbers. | |
561 %} | |
562 | |
563 {NUMBER}{Im} { | |
8535 | 564 LEXER_DEBUG ("{NUMBER}{Im}"); |
565 | |
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566 curr_lexer->handle_number (); |
4910 | 567 COUNT_TOK_AND_RETURN (IMAG_NUM); |
968 | 568 } |
569 | |
570 %{ | |
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571 // Real numbers. Don't grab the '.' part of a dot operator as part of |
968 | 572 // the constant. |
573 %} | |
574 | |
8535 | 575 {D}+/\.[\*/\\^\'] | |
968 | 576 {NUMBER} { |
8535 | 577 LEXER_DEBUG ("{D}+/\\.[\\*/\\^\\']|{NUMBER}"); |
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578 curr_lexer->handle_number (); |
4910 | 579 COUNT_TOK_AND_RETURN (NUM); |
968 | 580 } |
581 | |
582 %{ | |
583 // Eat whitespace. Whitespace inside matrix constants is handled by | |
4208 | 584 // the <MATRIX_START> start state code above. |
968 | 585 %} |
586 | |
967 | 587 {S}* { |
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588 curr_lexer->current_input_column += yyleng; |
967 | 589 } |
590 | |
968 | 591 %{ |
592 // Continuation lines. Allow comments after continuations. | |
593 %} | |
594 | |
967 | 595 {CONT}{S}*{NL} | |
596 {CONT}{S}*{COMMENT} { | |
8535 | 597 LEXER_DEBUG ("{CONT}{S}*{NL}|{CONT}{S}*{COMMENT}"); |
598 | |
4037 | 599 if (yytext[0] == '\\') |
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600 curr_lexer->gripe_matlab_incompatible_continuation (); |
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601 curr_lexer->scan_for_comments (yytext); |
967 | 602 promptflag--; |
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603 curr_lexer->input_line_number++; |
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604 curr_lexer->current_input_column = 1; |
967 | 605 } |
1 | 606 |
968 | 607 %{ |
608 // End of file. | |
609 %} | |
610 | |
967 | 611 <<EOF>> { |
8535 | 612 LEXER_DEBUG ("<<EOF>>"); |
613 | |
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614 if (curr_lexer->block_comment_nesting_level != 0) |
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615 { |
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616 warning ("block comment open at end of input"); |
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617 |
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618 if ((reading_fcn_file || reading_script_file || reading_classdef_file) |
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619 && ! curr_fcn_file_name.empty ()) |
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620 warning ("near line %d of file '%s.m'", |
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621 curr_lexer->input_line_number, curr_fcn_file_name.c_str ()); |
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622 } |
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623 |
967 | 624 TOK_RETURN (END_OF_INPUT); |
625 } | |
1 | 626 |
968 | 627 %{ |
970 | 628 // Identifiers. Truncate the token at the first space or tab but |
629 // don't write directly on yytext. | |
968 | 630 %} |
631 | |
967 | 632 {IDENT}{S}* { |
8535 | 633 LEXER_DEBUG ("{IDENT}{S}*"); |
634 | |
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635 int id_tok = curr_lexer->handle_identifier (); |
4238 | 636 |
637 if (id_tok >= 0) | |
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638 COUNT_TOK_AND_RETURN (id_tok); |
967 | 639 } |
1 | 640 |
968 | 641 %{ |
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642 // Superclass method identifiers. |
9476 | 643 %} |
644 | |
645 {IDENT}@{IDENT}{S}* | | |
646 {IDENT}@{IDENT}.{IDENT}{S}* { | |
647 LEXER_DEBUG ("{IDENT}@{IDENT}{S}*|{IDENT}@{IDENT}.{IDENT}{S}*"); | |
648 | |
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649 int id_tok = curr_lexer->handle_superclass_identifier (); |
9476 | 650 |
651 if (id_tok >= 0) | |
652 { | |
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653 curr_lexer->looking_for_object_index = true; |
9476 | 654 |
655 COUNT_TOK_AND_RETURN (SUPERCLASSREF); | |
656 } | |
657 } | |
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658 |
9476 | 659 %{ |
660 // Metaclass query | |
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661 %} |
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662 |
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663 \?{IDENT}{S}* | |
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664 \?{IDENT}\.{IDENT}{S}* { |
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665 LEXER_DEBUG ("\\?{IDENT}{S}*|\\?{IDENT}\\.{IDENT}{S}*"); |
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666 |
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667 int id_tok = curr_lexer->handle_meta_identifier (); |
9476 | 668 |
669 if (id_tok >= 0) | |
670 { | |
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671 curr_lexer->looking_for_object_index = true; |
9476 | 672 |
673 COUNT_TOK_AND_RETURN (METAQUERY); | |
674 } | |
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675 } |
9476 | 676 |
677 %{ | |
678 // Function handles and superclass references | |
4342 | 679 %} |
680 | |
4930 | 681 "@" { |
8535 | 682 LEXER_DEBUG ("@"); |
683 | |
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684 curr_lexer->current_input_column++; |
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685 |
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686 curr_lexer->quote_is_transpose = false; |
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687 curr_lexer->convert_spaces_to_comma = false; |
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688 curr_lexer->looking_at_function_handle++; |
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689 curr_lexer->looking_for_object_index = false; |
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690 curr_lexer->at_beginning_of_statement = false; |
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691 |
4930 | 692 COUNT_TOK_AND_RETURN ('@'); |
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693 |
4342 | 694 } |
695 | |
696 %{ | |
968 | 697 // A new line character. New line characters inside matrix constants |
4208 | 698 // are handled by the <MATRIX_START> start state code above. If closest |
985 | 699 // nesting is inside parentheses, don't return a row separator. |
968 | 700 %} |
701 | |
967 | 702 {NL} { |
8535 | 703 LEXER_DEBUG ("{NL}"); |
704 | |
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705 curr_lexer->input_line_number++; |
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706 curr_lexer->current_input_column = 1; |
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707 |
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708 curr_lexer->quote_is_transpose = false; |
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709 curr_lexer->convert_spaces_to_comma = true; |
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710 |
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711 if (curr_lexer->nesting_level.none ()) |
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712 { |
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713 curr_lexer->at_beginning_of_statement = true; |
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714 COUNT_TOK_AND_RETURN ('\n'); |
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715 } |
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716 else if (curr_lexer->nesting_level.is_paren ()) |
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717 { |
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718 curr_lexer->at_beginning_of_statement = false; |
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719 curr_lexer->gripe_matlab_incompatible ("bare newline inside parentheses"); |
8746
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720 } |
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721 else if (curr_lexer->nesting_level.is_bracket_or_brace ()) |
985 | 722 return LEXICAL_ERROR; |
967 | 723 } |
1 | 724 |
968 | 725 %{ |
726 // Single quote can either be the beginning of a string or a transpose | |
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727 // operator. |
968 | 728 %} |
729 | |
967 | 730 "'" { |
8535 | 731 LEXER_DEBUG ("'"); |
732 | |
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733 curr_lexer->current_input_column++; |
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734 curr_lexer->convert_spaces_to_comma = true; |
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735 |
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736 if (curr_lexer->quote_is_transpose) |
967 | 737 { |
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738 curr_lexer->do_comma_insert_check (); |
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739 COUNT_TOK_AND_RETURN (QUOTE); |
967 | 740 } |
741 else | |
7722
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742 { |
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743 int tok = curr_lexer->handle_string ('\''); |
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744 COUNT_TOK_AND_RETURN (tok); |
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745 } |
967 | 746 } |
1 | 747 |
968 | 748 %{ |
971 | 749 // Double quotes always begin strings. |
750 %} | |
751 | |
973 | 752 \" { |
14642
6edd02858516
lex.ll: fix think-o in previous change
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|
753 LEXER_DEBUG ("\""); |
8535 | 754 |
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755 curr_lexer->current_input_column++; |
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756 int tok = curr_lexer->handle_string ('"'); |
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757 |
7722
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|
758 COUNT_TOK_AND_RETURN (tok); |
973 | 759 } |
971 | 760 |
761 %{ | |
8536
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lex.l: finish previous change
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762 // Gobble comments. |
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763 %} |
968 | 764 |
967 | 765 {CCHAR} { |
8535 | 766 LEXER_DEBUG ("{CCHAR}"); |
767 | |
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768 curr_lexer->looking_for_object_index = false; |
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769 |
16113
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770 curr_lexer->xunput (yytext[0], yytext); |
7723
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|
771 |
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772 bool eof = false; |
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773 int tok = curr_lexer->process_comment (false, eof); |
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774 |
7715
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|
775 if (eof) |
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|
776 TOK_RETURN (END_OF_INPUT); |
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777 else if (tok > 0) |
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778 COUNT_TOK_AND_RETURN (tok); |
967 | 779 } |
440 | 780 |
968 | 781 %{ |
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782 // Block comments. |
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783 %} |
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784 |
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785 ^{S}*{CCHAR}\{{S}*{NL} { |
8535 | 786 LEXER_DEBUG ("^{S}*{CCHAR}\\{{S}*{NL}"); |
787 | |
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788 curr_lexer->looking_for_object_index = false; |
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789 |
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790 curr_lexer->input_line_number++; |
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791 curr_lexer->current_input_column = 1; |
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792 curr_lexer->block_comment_nesting_level++; |
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793 promptflag--; |
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794 |
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795 bool eof = false; |
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796 curr_lexer->process_comment (true, eof); |
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797 } |
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798 |
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|
799 %{ |
968 | 800 // Other operators. |
801 %} | |
802 | |
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803 ":" { LEXER_DEBUG (":"); BIN_OP_RETURN (':', false, false); } |
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804 |
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805 ".+" { LEXER_DEBUG (".+"); XBIN_OP_RETURN (EPLUS, false, false); } |
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806 ".-" { LEXER_DEBUG (".-"); XBIN_OP_RETURN (EMINUS, false, false); } |
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807 ".*" { LEXER_DEBUG (".*"); BIN_OP_RETURN (EMUL, false, false); } |
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808 "./" { LEXER_DEBUG ("./"); BIN_OP_RETURN (EDIV, false, false); } |
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809 ".\\" { LEXER_DEBUG (".\\"); BIN_OP_RETURN (ELEFTDIV, false, false); } |
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810 ".^" { LEXER_DEBUG (".^"); BIN_OP_RETURN (EPOW, false, false); } |
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811 ".**" { LEXER_DEBUG (".**"); XBIN_OP_RETURN (EPOW, false, false); } |
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812 ".'" { LEXER_DEBUG (".'"); curr_lexer->do_comma_insert_check (); BIN_OP_RETURN (TRANSPOSE, true, false); } |
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813 "++" { LEXER_DEBUG ("++"); curr_lexer->do_comma_insert_check (); XBIN_OP_RETURN_INTERNAL (PLUS_PLUS, true, false, true); } |
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814 "--" { LEXER_DEBUG ("--"); curr_lexer->do_comma_insert_check (); XBIN_OP_RETURN_INTERNAL (MINUS_MINUS, true, false, true); } |
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815 "<=" { LEXER_DEBUG ("<="); BIN_OP_RETURN (EXPR_LE, false, false); } |
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816 "==" { LEXER_DEBUG ("=="); BIN_OP_RETURN (EXPR_EQ, false, false); } |
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817 "~=" { LEXER_DEBUG ("~="); BIN_OP_RETURN (EXPR_NE, false, false); } |
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818 "!=" { LEXER_DEBUG ("!="); XBIN_OP_RETURN (EXPR_NE, false, false); } |
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819 ">=" { LEXER_DEBUG (">="); BIN_OP_RETURN (EXPR_GE, false, false); } |
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820 "&" { LEXER_DEBUG ("&"); BIN_OP_RETURN (EXPR_AND, false, false); } |
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821 "|" { LEXER_DEBUG ("|"); BIN_OP_RETURN (EXPR_OR, false, false); } |
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822 "<" { LEXER_DEBUG ("<"); BIN_OP_RETURN (EXPR_LT, false, false); } |
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823 ">" { LEXER_DEBUG (">"); BIN_OP_RETURN (EXPR_GT, false, false); } |
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824 "+" { LEXER_DEBUG ("+"); BIN_OP_RETURN ('+', false, false); } |
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825 "-" { LEXER_DEBUG ("-"); BIN_OP_RETURN ('-', false, false); } |
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826 "*" { LEXER_DEBUG ("*"); BIN_OP_RETURN ('*', false, false); } |
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827 "/" { LEXER_DEBUG ("/"); BIN_OP_RETURN ('/', false, false); } |
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828 "\\" { LEXER_DEBUG ("\\"); BIN_OP_RETURN (LEFTDIV, false, false); } |
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829 ";" { LEXER_DEBUG (";"); BIN_OP_RETURN (';', true, true); } |
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830 "," { LEXER_DEBUG (","); BIN_OP_RETURN (',', true, ! curr_lexer->looking_at_object_index.front ()); } |
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831 "^" { LEXER_DEBUG ("^"); BIN_OP_RETURN (POW, false, false); } |
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832 "**" { LEXER_DEBUG ("**"); XBIN_OP_RETURN (POW, false, false); } |
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833 "=" { LEXER_DEBUG ("="); BIN_OP_RETURN ('=', true, false); } |
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834 "&&" { LEXER_DEBUG ("&&"); BIN_OP_RETURN (EXPR_AND_AND, false, false); } |
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835 "||" { LEXER_DEBUG ("||"); BIN_OP_RETURN (EXPR_OR_OR, false, false); } |
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836 "<<" { LEXER_DEBUG ("<<"); XBIN_OP_RETURN (LSHIFT, false, false); } |
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837 ">>" { LEXER_DEBUG (">>"); XBIN_OP_RETURN (RSHIFT, false, false); } |
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838 |
967 | 839 {NOT} { |
8535 | 840 LEXER_DEBUG ("{NOT}"); |
841 | |
4037 | 842 if (yytext[0] == '~') |
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843 BIN_OP_RETURN (EXPR_NOT, false, false); |
4037 | 844 else |
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845 XBIN_OP_RETURN (EXPR_NOT, false, false); |
967 | 846 } |
1 | 847 |
967 | 848 "(" { |
8535 | 849 LEXER_DEBUG ("("); |
850 | |
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851 // If we are looking for an object index, then push TRUE for |
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852 // looking_at_object_index. Otherwise, just push whatever state |
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853 // is current (so that we can pop it off the stack when we find |
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854 // the matching close paren). |
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855 |
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856 curr_lexer->looking_at_object_index.push_front |
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857 (curr_lexer->looking_for_object_index); |
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858 |
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859 curr_lexer->looking_at_indirect_ref = false; |
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860 curr_lexer->looking_for_object_index = false; |
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861 curr_lexer->at_beginning_of_statement = false; |
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862 |
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863 curr_lexer->nesting_level.paren (); |
985 | 864 promptflag--; |
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865 |
967 | 866 TOK_RETURN ('('); |
867 } | |
868 | |
869 ")" { | |
8535 | 870 LEXER_DEBUG (")"); |
871 | |
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872 curr_lexer->nesting_level.remove (); |
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873 curr_lexer->current_input_column++; |
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874 |
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875 curr_lexer->looking_at_object_index.pop_front (); |
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876 |
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877 curr_lexer->quote_is_transpose = true; |
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878 curr_lexer->convert_spaces_to_comma |
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879 = (curr_lexer->nesting_level.is_bracket_or_brace () |
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880 && ! curr_lexer->looking_at_anon_fcn_args); |
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881 curr_lexer->looking_for_object_index = true; |
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882 curr_lexer->at_beginning_of_statement = false; |
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883 |
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884 if (curr_lexer->looking_at_anon_fcn_args) |
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885 curr_lexer->looking_at_anon_fcn_args = false; |
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886 |
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887 curr_lexer->do_comma_insert_check (); |
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888 |
4910 | 889 COUNT_TOK_AND_RETURN (')'); |
967 | 890 } |
891 | |
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892 "." { |
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893 LEXER_DEBUG ("."); |
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894 |
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895 curr_lexer->looking_for_object_index = false; |
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896 curr_lexer->at_beginning_of_statement = false; |
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897 |
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898 TOK_RETURN ('.'); |
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899 } |
8535 | 900 |
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901 "+=" { LEXER_DEBUG ("+="); XBIN_OP_RETURN (ADD_EQ, false, false); } |
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902 "-=" { LEXER_DEBUG ("-="); XBIN_OP_RETURN (SUB_EQ, false, false); } |
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903 "*=" { LEXER_DEBUG ("*="); XBIN_OP_RETURN (MUL_EQ, false, false); } |
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904 "/=" { LEXER_DEBUG ("/="); XBIN_OP_RETURN (DIV_EQ, false, false); } |
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905 "\\=" { LEXER_DEBUG ("\\="); XBIN_OP_RETURN (LEFTDIV_EQ, false, false); } |
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906 ".+=" { LEXER_DEBUG (".+="); XBIN_OP_RETURN (ADD_EQ, false, false); } |
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907 ".-=" { LEXER_DEBUG (".-="); XBIN_OP_RETURN (SUB_EQ, false, false); } |
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908 ".*=" { LEXER_DEBUG (".*="); XBIN_OP_RETURN (EMUL_EQ, false, false); } |
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909 "./=" { LEXER_DEBUG ("./="); XBIN_OP_RETURN (EDIV_EQ, false, false); } |
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910 ".\\=" { LEXER_DEBUG (".\\="); XBIN_OP_RETURN (ELEFTDIV_EQ, false, false); } |
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911 {POW}= { LEXER_DEBUG ("{POW}="); XBIN_OP_RETURN (POW_EQ, false, false); } |
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912 {EPOW}= { LEXER_DEBUG ("{EPOW}="); XBIN_OP_RETURN (EPOW_EQ, false, false); } |
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913 "&=" { LEXER_DEBUG ("&="); XBIN_OP_RETURN (AND_EQ, false, false); } |
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914 "|=" { LEXER_DEBUG ("|="); XBIN_OP_RETURN (OR_EQ, false, false); } |
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915 "<<=" { LEXER_DEBUG ("<<="); XBIN_OP_RETURN (LSHIFT_EQ, false, false); } |
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916 ">>=" { LEXER_DEBUG (">>="); XBIN_OP_RETURN (RSHIFT_EQ, false, false); } |
2877 | 917 |
4608 | 918 \{{S}* { |
8535 | 919 LEXER_DEBUG ("\\{{S}*"); |
920 | |
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921 curr_lexer->nesting_level.brace (); |
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922 |
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923 curr_lexer->looking_at_object_index.push_front |
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924 (curr_lexer->looking_for_object_index); |
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925 |
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926 curr_lexer->current_input_column += yyleng; |
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927 curr_lexer->quote_is_transpose = false; |
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928 curr_lexer->convert_spaces_to_comma = true; |
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929 curr_lexer->looking_for_object_index = false; |
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930 curr_lexer->at_beginning_of_statement = false; |
4608 | 931 |
3351 | 932 promptflag--; |
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933 curr_lexer->eat_whitespace (); |
4608 | 934 |
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935 curr_lexer->braceflag++; |
4608 | 936 BEGIN (MATRIX_START); |
4910 | 937 COUNT_TOK_AND_RETURN ('{'); |
3351 | 938 } |
939 | |
940 "}" { | |
8535 | 941 LEXER_DEBUG ("}"); |
942 | |
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943 curr_lexer->looking_at_object_index.pop_front (); |
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944 |
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945 curr_lexer->looking_for_object_index = true; |
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946 curr_lexer->at_beginning_of_statement = false; |
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947 |
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948 curr_lexer->nesting_level.remove (); |
3351 | 949 |
4608 | 950 TOK_RETURN ('}'); |
3351 | 951 } |
952 | |
968 | 953 %{ |
2066 | 954 // Unrecognized input is a lexical error. |
968 | 955 %} |
1 | 956 |
2042 | 957 . { |
8535 | 958 LEXER_DEBUG ("."); |
959 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
960 curr_lexer->xunput (yytext[0], yytext); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
961 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
962 int c = curr_lexer->text_yyinput (); |
4248 | 963 |
964 if (c != EOF) | |
4240 | 965 { |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
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diff
changeset
|
966 curr_lexer->current_input_column++; |
10315
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untabify src C++ source files
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diff
changeset
|
967 |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
968 error ("invalid character '%s' (ASCII %d) near line %d, column %d", |
10315
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untabify src C++ source files
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changeset
|
969 undo_string_escape (static_cast<char> (c)), c, |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
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diff
changeset
|
970 curr_lexer->input_line_number, curr_lexer->current_input_column); |
10315
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untabify src C++ source files
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diff
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|
971 |
57a59eae83cc
untabify src C++ source files
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diff
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|
972 return LEXICAL_ERROR; |
4240 | 973 } |
974 else | |
975 TOK_RETURN (END_OF_INPUT); | |
2066 | 976 } |
1 | 977 |
978 %% | |
979 | |
767 | 980 // Fix things up for errors or interrupts. The parser is never called |
981 // recursively, so it is always safe to reinitialize its state before | |
982 // doing any parsing. | |
983 | |
1 | 984 void |
985 reset_parser (void) | |
986 { | |
1826 | 987 // Start off on the right foot. |
4323 | 988 BEGIN (INITIAL); |
4318 | 989 |
14329
8d1ae996c122
also save and restore symbol table context in parser (bug #35448)
John W. Eaton <jwe@octave.org>
parents:
14294
diff
changeset
|
990 parser_symtab_context.clear (); |
287 | 991 |
1826 | 992 // We do want a prompt by default. |
1 | 993 promptflag = 1; |
287 | 994 |
1826 | 995 // Only ask for input from stdin if we are expecting interactive |
996 // input. | |
14074
f90c3facfac3
don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
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13973
diff
changeset
|
997 |
f90c3facfac3
don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
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13973
diff
changeset
|
998 if (! quitting_gracefully |
f90c3facfac3
don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents:
13973
diff
changeset
|
999 && (interactive || forced_interactive) |
3880 | 1000 && ! (reading_fcn_file |
14074
f90c3facfac3
don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents:
13973
diff
changeset
|
1001 || reading_classdef_file |
10315
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
1002 || reading_script_file |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1003 || get_input_from_eval_string |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1004 || input_from_startup_file)) |
287 | 1005 yyrestart (stdin); |
991 | 1006 |
1826 | 1007 // Clear the buffer for help text. |
4426 | 1008 while (! help_buf.empty ()) |
1009 help_buf.pop (); | |
1 | 1010 } |
1011 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1012 static void |
8535 | 1013 display_character (char c) |
1014 { | |
1015 if (isgraph (c)) | |
1016 std::cerr << c; | |
1017 else | |
1018 switch (c) | |
1019 { | |
1020 case 0: | |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1021 std::cerr << "NUL"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1022 break; |
8535 | 1023 |
1024 case 1: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1025 std::cerr << "SOH"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1026 break; |
8535 | 1027 |
1028 case 2: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1029 std::cerr << "STX"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1030 break; |
8535 | 1031 |
1032 case 3: | |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1033 std::cerr << "ETX"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1034 break; |
8535 | 1035 |
1036 case 4: | |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1037 std::cerr << "EOT"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1038 break; |
8535 | 1039 |
1040 case 5: | |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1041 std::cerr << "ENQ"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1042 break; |
8535 | 1043 |
1044 case 6: | |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1045 std::cerr << "ACK"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1046 break; |
8535 | 1047 |
1048 case 7: | |
10315
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
1049 std::cerr << "\\a"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1050 break; |
8535 | 1051 |
1052 case 8: | |
10315
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
1053 std::cerr << "\\b"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1054 break; |
8535 | 1055 |
1056 case 9: | |
10315
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untabify src C++ source files
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diff
changeset
|
1057 std::cerr << "\\t"; |
57a59eae83cc
untabify src C++ source files
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changeset
|
1058 break; |
8535 | 1059 |
1060 case 10: | |
10315
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untabify src C++ source files
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changeset
|
1061 std::cerr << "\\n"; |
57a59eae83cc
untabify src C++ source files
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changeset
|
1062 break; |
8535 | 1063 |
1064 case 11: | |
10315
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untabify src C++ source files
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changeset
|
1065 std::cerr << "\\v"; |
57a59eae83cc
untabify src C++ source files
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changeset
|
1066 break; |
8535 | 1067 |
1068 case 12: | |
10315
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untabify src C++ source files
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changeset
|
1069 std::cerr << "\\f"; |
57a59eae83cc
untabify src C++ source files
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changeset
|
1070 break; |
8535 | 1071 |
1072 case 13: | |
10315
57a59eae83cc
untabify src C++ source files
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changeset
|
1073 std::cerr << "\\r"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1074 break; |
8535 | 1075 |
1076 case 14: | |
10315
57a59eae83cc
untabify src C++ source files
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changeset
|
1077 std::cerr << "SO"; |
57a59eae83cc
untabify src C++ source files
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changeset
|
1078 break; |
8535 | 1079 |
1080 case 15: | |
10315
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untabify src C++ source files
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changeset
|
1081 std::cerr << "SI"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1082 break; |
8535 | 1083 |
1084 case 16: | |
10315
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untabify src C++ source files
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changeset
|
1085 std::cerr << "DLE"; |
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changeset
|
1086 break; |
8535 | 1087 |
1088 case 17: | |
10315
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untabify src C++ source files
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changeset
|
1089 std::cerr << "DC1"; |
57a59eae83cc
untabify src C++ source files
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changeset
|
1090 break; |
8535 | 1091 |
1092 case 18: | |
10315
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untabify src C++ source files
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changeset
|
1093 std::cerr << "DC2"; |
57a59eae83cc
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diff
changeset
|
1094 break; |
8535 | 1095 |
1096 case 19: | |
10315
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untabify src C++ source files
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changeset
|
1097 std::cerr << "DC3"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1098 break; |
8535 | 1099 |
1100 case 20: | |
10315
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changeset
|
1101 std::cerr << "DC4"; |
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untabify src C++ source files
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changeset
|
1102 break; |
8535 | 1103 |
1104 case 21: | |
10315
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untabify src C++ source files
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changeset
|
1105 std::cerr << "NAK"; |
57a59eae83cc
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diff
changeset
|
1106 break; |
8535 | 1107 |
1108 case 22: | |
10315
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untabify src C++ source files
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changeset
|
1109 std::cerr << "SYN"; |
57a59eae83cc
untabify src C++ source files
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changeset
|
1110 break; |
8535 | 1111 |
1112 case 23: | |
10315
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untabify src C++ source files
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changeset
|
1113 std::cerr << "ETB"; |
57a59eae83cc
untabify src C++ source files
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changeset
|
1114 break; |
8535 | 1115 |
1116 case 24: | |
10315
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untabify src C++ source files
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changeset
|
1117 std::cerr << "CAN"; |
57a59eae83cc
untabify src C++ source files
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changeset
|
1118 break; |
8535 | 1119 |
1120 case 25: | |
10315
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untabify src C++ source files
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changeset
|
1121 std::cerr << "EM"; |
57a59eae83cc
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diff
changeset
|
1122 break; |
8535 | 1123 |
1124 case 26: | |
10315
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untabify src C++ source files
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changeset
|
1125 std::cerr << "SUB"; |
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untabify src C++ source files
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changeset
|
1126 break; |
8535 | 1127 |
1128 case 27: | |
10315
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untabify src C++ source files
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changeset
|
1129 std::cerr << "ESC"; |
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changeset
|
1130 break; |
8535 | 1131 |
1132 case 28: | |
10315
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untabify src C++ source files
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changeset
|
1133 std::cerr << "FS"; |
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untabify src C++ source files
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changeset
|
1134 break; |
8535 | 1135 |
1136 case 29: | |
10315
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untabify src C++ source files
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changeset
|
1137 std::cerr << "GS"; |
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changeset
|
1138 break; |
8535 | 1139 |
1140 case 30: | |
10315
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untabify src C++ source files
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changeset
|
1141 std::cerr << "RS"; |
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changeset
|
1142 break; |
8535 | 1143 |
1144 case 31: | |
10315
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untabify src C++ source files
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|
1145 std::cerr << "US"; |
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changeset
|
1146 break; |
8535 | 1147 |
1148 case 32: | |
10315
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untabify src C++ source files
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changeset
|
1149 std::cerr << "SPACE"; |
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changeset
|
1150 break; |
8535 | 1151 |
1152 case 127: | |
10315
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changeset
|
1153 std::cerr << "DEL"; |
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changeset
|
1154 break; |
8535 | 1155 } |
1156 } | |
8745
6dc61981d18b
better handling of object indexing in lexer
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8701
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|
1157 |
767 | 1158 // Include these so that we don't have to link to libfl.a. |
246 | 1159 |
3332 | 1160 int |
1 | 1161 yywrap (void) |
1162 { | |
287 | 1163 return 1; |
1 | 1164 } |
1165 | |
767 | 1166 // Tell us all what the current buffer is. |
1167 | |
1 | 1168 YY_BUFFER_STATE |
1169 current_buffer (void) | |
1170 { | |
1171 return YY_CURRENT_BUFFER; | |
1172 } | |
1173 | |
767 | 1174 // Create a new buffer. |
1175 | |
1 | 1176 YY_BUFFER_STATE |
1177 create_buffer (FILE *f) | |
1178 { | |
1179 return yy_create_buffer (f, YY_BUF_SIZE); | |
1180 } | |
1181 | |
767 | 1182 // Start reading a new buffer. |
1183 | |
1 | 1184 void |
1185 switch_to_buffer (YY_BUFFER_STATE buf) | |
1186 { | |
1187 yy_switch_to_buffer (buf); | |
1188 } | |
1189 | |
767 | 1190 // Delete a buffer. |
1191 | |
1 | 1192 void |
1193 delete_buffer (YY_BUFFER_STATE buf) | |
1194 { | |
1195 yy_delete_buffer (buf); | |
14510
c20de00a66a9
avoid memory error in 'octave --eval 0' (bug #36038)
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changeset
|
1196 |
c20de00a66a9
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diff
changeset
|
1197 // Prevent invalid yyin from being used by yyrestart. |
c20de00a66a9
avoid memory error in 'octave --eval 0' (bug #36038)
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|
1198 if (! current_buffer ()) |
c20de00a66a9
avoid memory error in 'octave --eval 0' (bug #36038)
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changeset
|
1199 yyin = 0; |
1 | 1200 } |
1201 | |
13973
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clean up parser memory on exit
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changeset
|
1202 // Delete all buffers from the stack. |
2c664266e9d0
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|
1203 void |
2c664266e9d0
clean up parser memory on exit
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changeset
|
1204 clear_all_buffers (void) |
2c664266e9d0
clean up parser memory on exit
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|
1205 { |
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clean up parser memory on exit
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1206 while (current_buffer ()) |
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|
1207 octave_pop_buffer_state (); |
2c664266e9d0
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|
1208 } |
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1209 |
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|
1210 void |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
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|
1211 cleanup_parser (void) |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1212 { |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1213 reset_parser (); |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
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|
1214 |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
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|
1215 clear_all_buffers (); |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
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|
1216 } |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
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|
1217 |
767 | 1218 // Restore a buffer (for unwind-prot). |
1219 | |
1 | 1220 void |
1221 restore_input_buffer (void *buf) | |
1222 { | |
2861 | 1223 switch_to_buffer (static_cast<YY_BUFFER_STATE> (buf)); |
1 | 1224 } |
1225 | |
767 | 1226 // Delete a buffer (for unwind-prot). |
1227 | |
1 | 1228 void |
1229 delete_input_buffer (void *buf) | |
1230 { | |
2861 | 1231 delete_buffer (static_cast<YY_BUFFER_STATE> (buf)); |
1 | 1232 } |
1233 | |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1234 // Return 1 if the given character matches any character in the given |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1235 // string. |
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* lex.ll: Reorder function definitions.
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|
1236 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1237 static bool |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1238 match_any (char c, const char *s) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1239 { |
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* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1240 char tmp; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1241 while ((tmp = *s++) != '\0') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1242 { |
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* lex.ll: Reorder function definitions.
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|
1243 if (c == tmp) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1244 return true; |
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* lex.ll: Reorder function definitions.
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|
1245 } |
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* lex.ll: Reorder function definitions.
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|
1246 return false; |
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* lex.ll: Reorder function definitions.
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|
1247 } |
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* lex.ll: Reorder function definitions.
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|
1248 |
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|
1249 // Given information about the spacing surrounding an operator, |
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* lex.ll: Reorder function definitions.
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1250 // return 1 if it looks like it should be treated as a binary |
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* lex.ll: Reorder function definitions.
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1251 // operator. For example, |
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|
1252 // |
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* lex.ll: Reorder function definitions.
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|
1253 // [ 1 + 2 ] or [ 1+ 2] or [ 1+2 ] ==> binary |
73a21ade0b6b
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|
1254 // |
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* lex.ll: Reorder function definitions.
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|
1255 // [ 1 +2 ] ==> unary |
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* lex.ll: Reorder function definitions.
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|
1256 |
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* lex.ll: Reorder function definitions.
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|
1257 static bool |
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* lex.ll: Reorder function definitions.
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|
1258 looks_like_bin_op (bool spc_prev, int next_char) |
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* lex.ll: Reorder function definitions.
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|
1259 { |
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* lex.ll: Reorder function definitions.
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|
1260 bool spc_next = (next_char == ' ' || next_char == '\t'); |
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* lex.ll: Reorder function definitions.
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|
1261 |
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* lex.ll: Reorder function definitions.
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|
1262 return ((spc_prev && spc_next) || ! spc_prev); |
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* lex.ll: Reorder function definitions.
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|
1263 } |
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* lex.ll: Reorder function definitions.
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|
1264 |
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* lex.ll: Reorder function definitions.
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|
1265 bool |
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* lex.ll: Reorder function definitions.
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|
1266 is_keyword (const std::string& s) |
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* lex.ll: Reorder function definitions.
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|
1267 { |
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* lex.ll: Reorder function definitions.
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|
1268 // Parsing function names like "set.property_name" inside |
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1269 // classdef-style class definitions is simplified by handling the |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1270 // "set" and "get" portions of the names using the same mechanism as |
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* lex.ll: Reorder function definitions.
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|
1271 // is used for keywords. However, they are not really keywords in |
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* lex.ll: Reorder function definitions.
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|
1272 // the language, so omit them from the list of possible keywords. |
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* lex.ll: Reorder function definitions.
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|
1273 |
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* lex.ll: Reorder function definitions.
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|
1274 return (octave_kw_hash::in_word_set (s.c_str (), s.length ()) != 0 |
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* lex.ll: Reorder function definitions.
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|
1275 && ! (s == "set" || s == "get")); |
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|
1276 } |
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|
1277 |
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|
1278 DEFUN (iskeyword, args, , |
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|
1279 "-*- texinfo -*-\n\ |
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|
1280 @deftypefn {Built-in Function} {} iskeyword ()\n\ |
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|
1281 @deftypefnx {Built-in Function} {} iskeyword (@var{name})\n\ |
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|
1282 Return true if @var{name} is an Octave keyword. If @var{name}\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1283 is omitted, return a list of keywords.\n\ |
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|
1284 @seealso{isvarname, exist}\n\ |
73a21ade0b6b
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|
1285 @end deftypefn") |
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* lex.ll: Reorder function definitions.
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|
1286 { |
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* lex.ll: Reorder function definitions.
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|
1287 octave_value retval; |
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* lex.ll: Reorder function definitions.
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|
1288 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1289 int argc = args.length () + 1; |
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* lex.ll: Reorder function definitions.
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|
1290 |
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* lex.ll: Reorder function definitions.
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|
1291 string_vector argv = args.make_argv ("iskeyword"); |
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* lex.ll: Reorder function definitions.
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|
1292 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1293 if (error_state) |
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* lex.ll: Reorder function definitions.
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|
1294 return retval; |
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* lex.ll: Reorder function definitions.
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|
1295 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1296 if (argc == 1) |
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* lex.ll: Reorder function definitions.
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|
1297 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1298 // Neither set and get are keywords. See the note in the |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1299 // is_keyword function for additional details. |
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* lex.ll: Reorder function definitions.
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|
1300 |
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* lex.ll: Reorder function definitions.
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|
1301 string_vector lst (TOTAL_KEYWORDS); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1302 |
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* lex.ll: Reorder function definitions.
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|
1303 int j = 0; |
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* lex.ll: Reorder function definitions.
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|
1304 |
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* lex.ll: Reorder function definitions.
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|
1305 for (int i = 0; i < TOTAL_KEYWORDS; i++) |
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* lex.ll: Reorder function definitions.
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|
1306 { |
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* lex.ll: Reorder function definitions.
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|
1307 std::string tmp = wordlist[i].name; |
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* lex.ll: Reorder function definitions.
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|
1308 |
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* lex.ll: Reorder function definitions.
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changeset
|
1309 if (! (tmp == "set" || tmp == "get")) |
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* lex.ll: Reorder function definitions.
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|
1310 lst[j++] = tmp; |
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* lex.ll: Reorder function definitions.
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|
1311 } |
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* lex.ll: Reorder function definitions.
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changeset
|
1312 |
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* lex.ll: Reorder function definitions.
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|
1313 lst.resize (j); |
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* lex.ll: Reorder function definitions.
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|
1314 |
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* lex.ll: Reorder function definitions.
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|
1315 retval = Cell (lst.sort ()); |
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|
1316 } |
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* lex.ll: Reorder function definitions.
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|
1317 else if (argc == 2) |
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|
1318 { |
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* lex.ll: Reorder function definitions.
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|
1319 retval = is_keyword (argv[1]); |
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|
1320 } |
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* lex.ll: Reorder function definitions.
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|
1321 else |
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|
1322 print_usage (); |
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|
1323 |
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|
1324 return retval; |
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|
1325 } |
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* lex.ll: Reorder function definitions.
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|
1326 |
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* lex.ll: Reorder function definitions.
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|
1327 /* |
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|
1328 |
73a21ade0b6b
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|
1329 %!assert (iskeyword ("for")) |
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|
1330 %!assert (iskeyword ("fort"), false) |
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|
1331 %!assert (iskeyword ("fft"), false) |
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|
1332 |
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1333 */ |
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|
1334 |
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|
1335 void |
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|
1336 prep_lexer_for_script_file (void) |
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|
1337 { |
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* lex.ll: Reorder function definitions.
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|
1338 BEGIN (SCRIPT_FILE_BEGIN); |
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|
1339 } |
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* lex.ll: Reorder function definitions.
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|
1340 |
73a21ade0b6b
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|
1341 void |
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changeset
|
1342 prep_lexer_for_function_file (void) |
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|
1343 { |
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* lex.ll: Reorder function definitions.
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|
1344 BEGIN (FUNCTION_FILE_BEGIN); |
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|
1345 } |
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|
1346 |
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* lex.ll: Reorder function definitions.
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|
1347 // Used to delete trailing white space from tokens. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1348 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1349 static std::string |
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* lex.ll: Reorder function definitions.
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|
1350 strip_trailing_whitespace (char *s) |
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* lex.ll: Reorder function definitions.
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|
1351 { |
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* lex.ll: Reorder function definitions.
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|
1352 std::string retval = s; |
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* lex.ll: Reorder function definitions.
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|
1353 |
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* lex.ll: Reorder function definitions.
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|
1354 size_t pos = retval.find_first_of (" \t"); |
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* lex.ll: Reorder function definitions.
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|
1355 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1356 if (pos != std::string::npos) |
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* lex.ll: Reorder function definitions.
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|
1357 retval.resize (pos); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1358 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1359 return retval; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1360 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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|
1361 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1362 static int |
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* lex.ll: Reorder function definitions.
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|
1363 octave_read (char *buf, unsigned max_size) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1364 { |
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* lex.ll: Reorder function definitions.
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|
1365 static const char * const eol = "\n"; |
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* lex.ll: Reorder function definitions.
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|
1366 static std::string input_buf; |
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* lex.ll: Reorder function definitions.
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|
1367 static const char *pos = 0; |
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* lex.ll: Reorder function definitions.
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|
1368 static size_t chars_left = 0; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1369 static bool eof = false; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1370 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1371 int status = 0; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1372 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1373 if (chars_left == 0) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1374 { |
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* lex.ll: Reorder function definitions.
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|
1375 pos = 0; |
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* lex.ll: Reorder function definitions.
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|
1376 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1377 input_buf = get_user_input (eof); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1378 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1379 chars_left = input_buf.length (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1380 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1381 pos = input_buf.c_str (); |
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* lex.ll: Reorder function definitions.
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|
1382 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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diff
changeset
|
1383 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1384 if (chars_left > 0) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1385 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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|
1386 size_t len = max_size > chars_left ? chars_left : max_size; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1387 assert (len > 0); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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|
1388 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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|
1389 memcpy (buf, pos, len); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1390 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1391 chars_left -= len; |
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* lex.ll: Reorder function definitions.
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|
1392 pos += len; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1393 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1394 // Make sure input ends with a new line character. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1395 if (chars_left == 0 && buf[len-1] != '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1396 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
16113
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changeset
|
1397 if (len < max_size) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1398 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
16113
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changeset
|
1399 // There is enough room to plug the newline character in |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1400 // the buffer. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1401 buf[len++] = '\n'; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1402 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1403 else |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1404 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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changeset
|
1405 // There isn't enough room to plug the newline character |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1406 // in the buffer so make sure it is returned on the next |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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changeset
|
1407 // octave_read call. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1408 pos = eol; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1409 chars_left = 1; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
16113
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|
1410 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
16113
diff
changeset
|
1411 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1412 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
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changeset
|
1413 status = len; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1414 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1415 else |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1416 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1417 status = YY_NULL; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1418 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
16113
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changeset
|
1419 if (! eof) |
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* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1420 YY_FATAL_ERROR ("octave_read () in flex scanner failed"); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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16113
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|
1421 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1422 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1423 return status; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1424 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1425 |
16118
f8e463523229
move more static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16117
diff
changeset
|
1426 void |
f8e463523229
move more static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16117
diff
changeset
|
1427 lexical_feedback::display_token (int tok) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1428 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1429 switch (tok) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
1430 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1431 case '=': std::cerr << "'='\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1432 case ':': std::cerr << "':'\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1433 case '-': std::cerr << "'-'\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1434 case '+': std::cerr << "'+'\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1435 case '*': std::cerr << "'*'\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1436 case '/': std::cerr << "'/'\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1437 case ADD_EQ: std::cerr << "ADD_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1438 case SUB_EQ: std::cerr << "SUB_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1439 case MUL_EQ: std::cerr << "MUL_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1440 case DIV_EQ: std::cerr << "DIV_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
16113
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changeset
|
1441 case LEFTDIV_EQ: std::cerr << "LEFTDIV_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1442 case POW_EQ: std::cerr << "POW_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1443 case EMUL_EQ: std::cerr << "EMUL_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1444 case EDIV_EQ: std::cerr << "EDIV_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
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|
1445 case ELEFTDIV_EQ: std::cerr << "ELEFTDIV_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1446 case EPOW_EQ: std::cerr << "EPOW_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1447 case AND_EQ: std::cerr << "AND_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1448 case OR_EQ: std::cerr << "OR_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1449 case LSHIFT_EQ: std::cerr << "LSHIFT_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1450 case RSHIFT_EQ: std::cerr << "RSHIFT_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1451 case LSHIFT: std::cerr << "LSHIFT\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1452 case RSHIFT: std::cerr << "RSHIFT\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1453 case EXPR_AND_AND: std::cerr << "EXPR_AND_AND\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1454 case EXPR_OR_OR: std::cerr << "EXPR_OR_OR\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1455 case EXPR_AND: std::cerr << "EXPR_AND\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1456 case EXPR_OR: std::cerr << "EXPR_OR\n"; break; |
73a21ade0b6b
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|
1457 case EXPR_NOT: std::cerr << "EXPR_NOT\n"; break; |
73a21ade0b6b
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|
1458 case EXPR_LT: std::cerr << "EXPR_LT\n"; break; |
73a21ade0b6b
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|
1459 case EXPR_LE: std::cerr << "EXPR_LE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1460 case EXPR_EQ: std::cerr << "EXPR_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1461 case EXPR_NE: std::cerr << "EXPR_NE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1462 case EXPR_GE: std::cerr << "EXPR_GE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1463 case EXPR_GT: std::cerr << "EXPR_GT\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1464 case LEFTDIV: std::cerr << "LEFTDIV\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1465 case EMUL: std::cerr << "EMUL\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1466 case EDIV: std::cerr << "EDIV\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1467 case ELEFTDIV: std::cerr << "ELEFTDIV\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1468 case EPLUS: std::cerr << "EPLUS\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1469 case EMINUS: std::cerr << "EMINUS\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1470 case QUOTE: std::cerr << "QUOTE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1471 case TRANSPOSE: std::cerr << "TRANSPOSE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1472 case PLUS_PLUS: std::cerr << "PLUS_PLUS\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1473 case MINUS_MINUS: std::cerr << "MINUS_MINUS\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1474 case POW: std::cerr << "POW\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1475 case EPOW: std::cerr << "EPOW\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1476 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1477 case NUM: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1478 case IMAG_NUM: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1479 std::cerr << (tok == NUM ? "NUM" : "IMAG_NUM") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1480 << " [" << yylval.tok_val->number () << "]\n"; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1481 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1482 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1483 case STRUCT_ELT: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1484 std::cerr << "STRUCT_ELT [" << yylval.tok_val->text () << "]\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1485 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1486 case NAME: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1487 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1488 symbol_table::symbol_record *sr = yylval.tok_val->sym_rec (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1489 std::cerr << "NAME"; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1490 if (sr) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1491 std::cerr << " [" << sr->name () << "]"; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1492 std::cerr << "\n"; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1493 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1494 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1495 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1496 case END: std::cerr << "END\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1497 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1498 case DQ_STRING: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1499 case SQ_STRING: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1500 std::cerr << (tok == DQ_STRING ? "DQ_STRING" : "SQ_STRING") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1501 << " [" << yylval.tok_val->text () << "]\n"; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1502 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1503 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1504 case FOR: std::cerr << "FOR\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1505 case WHILE: std::cerr << "WHILE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1506 case DO: std::cerr << "DO\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1507 case UNTIL: std::cerr << "UNTIL\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1508 case IF: std::cerr << "IF\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1509 case ELSEIF: std::cerr << "ELSEIF\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1510 case ELSE: std::cerr << "ELSE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1511 case SWITCH: std::cerr << "SWITCH\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1512 case CASE: std::cerr << "CASE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1513 case OTHERWISE: std::cerr << "OTHERWISE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1514 case BREAK: std::cerr << "BREAK\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1515 case CONTINUE: std::cerr << "CONTINUE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1516 case FUNC_RET: std::cerr << "FUNC_RET\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1517 case UNWIND: std::cerr << "UNWIND\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1518 case CLEANUP: std::cerr << "CLEANUP\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1519 case TRY: std::cerr << "TRY\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1520 case CATCH: std::cerr << "CATCH\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1521 case GLOBAL: std::cerr << "GLOBAL\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1522 case PERSISTENT: std::cerr << "PERSISTENT\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1523 case FCN_HANDLE: std::cerr << "FCN_HANDLE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1524 case END_OF_INPUT: std::cerr << "END_OF_INPUT\n\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1525 case LEXICAL_ERROR: std::cerr << "LEXICAL_ERROR\n\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1526 case FCN: std::cerr << "FCN\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1527 case CLOSE_BRACE: std::cerr << "CLOSE_BRACE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1528 case SCRIPT_FILE: std::cerr << "SCRIPT_FILE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1529 case FUNCTION_FILE: std::cerr << "FUNCTION_FILE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1530 case SUPERCLASSREF: std::cerr << "SUPERCLASSREF\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1531 case METAQUERY: std::cerr << "METAQUERY\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1532 case GET: std::cerr << "GET\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1533 case SET: std::cerr << "SET\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1534 case PROPERTIES: std::cerr << "PROPERTIES\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1535 case METHODS: std::cerr << "METHODS\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1536 case EVENTS: std::cerr << "EVENTS\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1537 case CLASSDEF: std::cerr << "CLASSDEF\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1538 case '\n': std::cerr << "\\n\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1539 case '\r': std::cerr << "\\r\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1540 case '\t': std::cerr << "TAB\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1541 default: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1542 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1543 if (tok < 256) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1544 std::cerr << static_cast<char> (tok) << "\n"; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1545 else |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1546 std::cerr << "UNKNOWN(" << tok << ")\n"; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1547 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1548 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1549 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1550 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1551 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1552 static void |
16118
f8e463523229
move more static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16117
diff
changeset
|
1553 display_state (int state) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1554 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1555 std::cerr << "S: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1556 |
16118
f8e463523229
move more static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16117
diff
changeset
|
1557 switch (state) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1558 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1559 case INITIAL: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1560 std::cerr << "INITIAL" << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1561 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1562 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1563 case COMMAND_START: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1564 std::cerr << "COMMAND_START" << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1565 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1566 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1567 case MATRIX_START: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1568 std::cerr << "MATRIX_START" << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1569 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1570 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1571 case SCRIPT_FILE_BEGIN: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1572 std::cerr << "SCRIPT_FILE_BEGIN" << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1573 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1574 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1575 case FUNCTION_FILE_BEGIN: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1576 std::cerr << "FUNCTION_FILE_BEGIN" << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1577 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1578 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1579 default: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1580 std::cerr << "UNKNOWN START STATE!" << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1581 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1582 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1583 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1584 |
16118
f8e463523229
move more static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16117
diff
changeset
|
1585 void |
f8e463523229
move more static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16117
diff
changeset
|
1586 lexical_feedback::lexer_debug (const char *pattern, const char *text) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1587 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1588 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1589 |
16118
f8e463523229
move more static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16117
diff
changeset
|
1590 display_state (YY_START); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1591 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1592 std::cerr << "P: " << pattern << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1593 std::cerr << "T: " << text << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1594 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1595 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1596 DEFUN (__display_tokens__, args, nargout, |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1597 "-*- texinfo -*-\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1598 @deftypefn {Built-in Function} {} __display_tokens__ ()\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1599 Query or set the internal variable that determines whether Octave's\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1600 lexer displays tokens as they are read.\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1601 @end deftypefn") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1602 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1603 return SET_INTERNAL_VARIABLE (display_tokens); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1604 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1605 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1606 DEFUN (__token_count__, , , |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1607 "-*- texinfo -*-\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1608 @deftypefn {Built-in Function} {} __token_count__ ()\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1609 Number of language tokens processed since Octave startup.\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1610 @end deftypefn") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1611 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1612 return octave_value (Vtoken_count); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1613 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1614 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1615 DEFUN (__lexer_debug_flag__, args, nargout, |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1616 "-*- texinfo -*-\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1617 @deftypefn {Built-in Function} {@var{old_val} =} __lexer_debug_flag__ (@var{new_val}))\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1618 Undocumented internal function.\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1619 @end deftypefn") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1620 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1621 octave_value retval; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1622 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1623 retval = set_internal_variable (lexer_debug_flag, args, nargout, |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1624 "__lexer_debug_flag__"); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1625 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1626 return retval; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1627 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1628 |
16117
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1629 class |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1630 flex_stream_reader : public stream_reader |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1631 { |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1632 public: |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1633 flex_stream_reader (lexical_feedback *l, char *buf_arg) |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1634 : stream_reader (), lexer (l), buf (buf_arg) |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1635 { } |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1636 |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1637 int getc (void) { return lexer->text_yyinput (); } |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1638 int ungetc (int c) { lexer->xunput (c, buf); return 0; } |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1639 |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1640 private: |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1641 |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1642 // No copying! |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1643 |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1644 flex_stream_reader (const flex_stream_reader&); |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1645 |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1646 flex_stream_reader& operator = (const flex_stream_reader&); |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1647 |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1648 lexical_feedback *lexer; |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1649 |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1650 char *buf; |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1651 }; |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1652 |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1653 lexical_feedback::~lexical_feedback (void) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1654 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1655 // Clear out the stack of token info used to track line and |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1656 // column numbers. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1657 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1658 while (! token_stack.empty ()) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1659 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1660 delete token_stack.top (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1661 token_stack.pop (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1662 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1663 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1664 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1665 // GAG. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1666 // |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1667 // If we're reading a matrix and the next character is '[', make sure |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1668 // that we insert a comma ahead of it. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1669 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1670 void |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1671 lexical_feedback::do_comma_insert_check (void) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1672 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1673 bool spc_gobbled = (eat_continuation () != lexical_feedback::NO_WHITESPACE); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1674 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1675 int c = text_yyinput (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1676 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1677 xunput (c, yytext); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1678 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1679 if (spc_gobbled) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1680 xunput (' ', yytext); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1681 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1682 do_comma_insert = (! looking_at_object_index.front () |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1683 && bracketflag && c == '['); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1684 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1685 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1686 int |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1687 lexical_feedback::text_yyinput (void) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1688 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1689 int c = yyinput (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1690 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1691 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1692 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1693 std::cerr << "I: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1694 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1695 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1696 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1697 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1698 // 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
|
1699 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1700 if (c == '\r') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1701 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1702 c = yyinput (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1703 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1704 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1705 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1706 std::cerr << "I: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1707 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1708 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1709 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1710 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1711 if (c != '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1712 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1713 xunput (c, yytext); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1714 c = '\n'; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1715 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1716 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1717 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1718 if (c == '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1719 input_line_number++; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1720 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1721 return c; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1722 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1723 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1724 void |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1725 lexical_feedback::xunput (char c, char *buf) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1726 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1727 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1728 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1729 std::cerr << "U: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1730 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1731 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1732 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1733 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1734 if (c == '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1735 input_line_number--; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1736 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1737 yyunput (c, buf); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1738 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1739 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1740 // If we read some newlines, we need figure out what column we're |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1741 // really looking at. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1742 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1743 void |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1744 lexical_feedback::fixup_column_count (char *s) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1745 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1746 char c; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1747 while ((c = *s++) != '\0') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1748 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1749 if (c == '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1750 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1751 input_line_number++; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1752 current_input_column = 1; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1753 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1754 else |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1755 current_input_column++; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1756 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1757 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1758 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1759 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1760 lexical_feedback::inside_any_object_index (void) |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1761 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1762 bool retval = false; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1763 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1764 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
|
1765 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
|
1766 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1767 if (*i) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1768 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1769 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1770 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1771 } |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1772 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1773 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1774 return retval; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1775 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1776 |
4238 | 1777 // Handle keywords. Return -1 if the keyword should be ignored. |
767 | 1778 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1779 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1780 lexical_feedback::is_keyword_token (const std::string& s) |
1 | 1781 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1782 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
|
1783 int c = current_input_column; |
3805 | 1784 |
1823 | 1785 int len = s.length (); |
922 | 1786 |
5088 | 1787 const octave_kw *kw = octave_kw_hash::in_word_set (s.c_str (), len); |
191 | 1788 |
1497 | 1789 if (kw) |
143 | 1790 { |
1497 | 1791 yylval.tok_val = 0; |
1792 | |
1793 switch (kw->kw_id) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1794 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1795 case break_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1796 case catch_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1797 case continue_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1798 case else_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1799 case otherwise_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1800 case return_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1801 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
|
1802 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1803 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1804 |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1805 case static_kw: |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1806 if ((reading_fcn_file || reading_script_file |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1807 || reading_classdef_file) |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1808 && ! curr_fcn_file_full_name.empty ()) |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1809 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
|
1810 "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
|
1811 input_line_number, |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1812 curr_fcn_file_full_name.c_str ()); |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1813 else |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1814 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
|
1815 "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
|
1816 input_line_number); |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1817 // fall through ... |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1818 |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1819 case persistent_kw: |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1820 break; |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1821 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1822 case case_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1823 case elseif_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1824 case global_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1825 case until_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1826 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
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changeset
|
1827 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1828 case end_kw: |
14645
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
1829 if (inside_any_object_index () |
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
1830 || (! reading_classdef_file |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1831 && (defining_func |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1832 && ! (looking_at_return_list |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1833 || parsed_function_name.top ())))) |
10315
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diff
changeset
|
1834 return 0; |
57a59eae83cc
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changeset
|
1835 |
57a59eae83cc
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changeset
|
1836 yylval.tok_val = new token (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
|
1837 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1838 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1839 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1840 case end_try_catch_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1841 yylval.tok_val = new token (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
|
1842 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1843 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1844 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1845 case end_unwind_protect_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1846 yylval.tok_val = new token (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
|
1847 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1848 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1849 |
57a59eae83cc
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diff
changeset
|
1850 case endfor_kw: |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1851 yylval.tok_val = new token (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
|
1852 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1853 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1854 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1855 case endfunction_kw: |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1856 yylval.tok_val = new token (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
|
1857 at_beginning_of_statement = true; |
10315
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1858 break; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1859 |
57a59eae83cc
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diff
changeset
|
1860 case endif_kw: |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1861 yylval.tok_val = new token (token::if_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
1862 at_beginning_of_statement = true; |
10315
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untabify src C++ source files
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diff
changeset
|
1863 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1864 |
13246 | 1865 case endparfor_kw: |
1866 yylval.tok_val = new token (token::parfor_end, l, c); | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
1867 at_beginning_of_statement = true; |
13246 | 1868 break; |
1869 | |
10315
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untabify src C++ source files
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diff
changeset
|
1870 case endswitch_kw: |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1871 yylval.tok_val = new token (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
|
1872 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1873 break; |
57a59eae83cc
untabify src C++ source files
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parents:
10182
diff
changeset
|
1874 |
57a59eae83cc
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diff
changeset
|
1875 case endwhile_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1876 yylval.tok_val = new token (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
|
1877 at_beginning_of_statement = true; |
10315
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untabify src C++ source files
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diff
changeset
|
1878 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1879 |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1880 case endclassdef_kw: |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
1881 yylval.tok_val = new token (token::classdef_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
1882 at_beginning_of_statement = true; |
10315
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untabify src C++ source files
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diff
changeset
|
1883 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1884 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1885 case endenumeration_kw: |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1886 yylval.tok_val = new token (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
|
1887 at_beginning_of_statement = true; |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1888 break; |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1889 |
10315
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untabify src C++ source files
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diff
changeset
|
1890 case endevents_kw: |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1891 yylval.tok_val = new token (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
|
1892 at_beginning_of_statement = true; |
10315
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untabify src C++ source files
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diff
changeset
|
1893 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11523
diff
changeset
|
1894 |
10315
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untabify src C++ source files
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diff
changeset
|
1895 case endmethods_kw: |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1896 yylval.tok_val = new token (token::methods_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1897 at_beginning_of_statement = true; |
10315
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untabify src C++ source files
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changeset
|
1898 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
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diff
changeset
|
1899 |
10315
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changeset
|
1900 case endproperties_kw: |
57a59eae83cc
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changeset
|
1901 yylval.tok_val = new token (token::properties_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1902 at_beginning_of_statement = true; |
10315
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untabify src C++ source files
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diff
changeset
|
1903 break; |
57a59eae83cc
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1904 |
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
|
1905 |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1906 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
|
1907 case parfor_kw: |
10315
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diff
changeset
|
1908 case while_kw: |
57a59eae83cc
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changeset
|
1909 promptflag--; |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1910 looping++; |
10315
57a59eae83cc
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changeset
|
1911 break; |
57a59eae83cc
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changeset
|
1912 |
57a59eae83cc
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diff
changeset
|
1913 case do_kw: |
16113
7c5e5e97a3bc
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diff
changeset
|
1914 at_beginning_of_statement = true; |
10315
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diff
changeset
|
1915 promptflag--; |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1916 looping++; |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1917 break; |
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diff
changeset
|
1918 |
57a59eae83cc
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changeset
|
1919 case try_kw: |
57a59eae83cc
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|
1920 case unwind_protect_kw: |
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changeset
|
1921 at_beginning_of_statement = true; |
10315
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diff
changeset
|
1922 promptflag--; |
57a59eae83cc
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10182
diff
changeset
|
1923 break; |
57a59eae83cc
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diff
changeset
|
1924 |
57a59eae83cc
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diff
changeset
|
1925 case if_kw: |
57a59eae83cc
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diff
changeset
|
1926 case switch_kw: |
57a59eae83cc
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diff
changeset
|
1927 promptflag--; |
57a59eae83cc
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parents:
10182
diff
changeset
|
1928 break; |
57a59eae83cc
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diff
changeset
|
1929 |
57a59eae83cc
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changeset
|
1930 case get_kw: |
11586
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diff
changeset
|
1931 case set_kw: |
10315
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|
1932 // 'get' and 'set' are keywords in classdef method |
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changeset
|
1933 // declarations. |
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changeset
|
1934 if (! maybe_classdef_get_set_method) |
10315
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changeset
|
1935 return 0; |
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changeset
|
1936 break; |
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diff
changeset
|
1937 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1938 case enumeration_kw: |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
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13246
diff
changeset
|
1939 case events_kw: |
10315
57a59eae83cc
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diff
changeset
|
1940 case methods_kw: |
13249
7861a5fd3479
accept enumeration keyword
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parents:
13246
diff
changeset
|
1941 case properties_kw: |
10315
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changeset
|
1942 // 'properties', 'methods' and 'events' are keywords for |
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untabify src C++ source files
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changeset
|
1943 // classdef blocks. |
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move static lexer helper functions to lexical_feedback class
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changeset
|
1944 if (! parsing_classdef) |
10315
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changeset
|
1945 return 0; |
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changeset
|
1946 // fall through ... |
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changeset
|
1947 |
57a59eae83cc
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changeset
|
1948 case classdef_kw: |
57a59eae83cc
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changeset
|
1949 // 'classdef' is always a keyword. |
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changeset
|
1950 promptflag--; |
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11523
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changeset
|
1951 break; |
10315
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diff
changeset
|
1952 |
57a59eae83cc
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changeset
|
1953 case function_kw: |
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changeset
|
1954 promptflag--; |
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1955 |
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1956 defining_func++; |
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1957 parsed_function_name.push (false); |
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1958 |
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1959 if (! (reading_fcn_file || reading_script_file |
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1960 || reading_classdef_file)) |
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1961 input_line_number = 1; |
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1962 break; |
1497 | 1963 |
3174 | 1964 case magic_file_kw: |
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1965 { |
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1966 if ((reading_fcn_file || reading_script_file |
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1967 || reading_classdef_file) |
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1968 && ! curr_fcn_file_full_name.empty ()) |
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1969 yylval.tok_val = new token (curr_fcn_file_full_name, l, c); |
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1970 else |
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1971 yylval.tok_val = new token ("stdin", l, c); |
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1972 } |
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1973 break; |
3174 | 1974 |
1975 case magic_line_kw: | |
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1976 yylval.tok_val = new token (static_cast<double> (l), "", l, c); |
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|
1977 break; |
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|
1978 |
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|
1979 default: |
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|
1980 panic_impossible (); |
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|
1981 } |
1497 | 1982 |
1983 if (! yylval.tok_val) | |
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1984 yylval.tok_val = new token (l, c); |
1497 | 1985 |
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move static lexer helper functions to lexical_feedback class
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|
1986 token_stack.push (yylval.tok_val); |
1497 | 1987 |
1988 return kw->tok; | |
143 | 1989 } |
1 | 1990 |
1991 return 0; | |
1992 } | |
1993 | |
16113
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move static lexer helper functions to lexical_feedback class
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|
1994 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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|
1995 lexical_feedback::is_variable (const std::string& name) |
2702 | 1996 { |
8001
ff9e7873f8ea
improve handling of command-style names in matrix_or_assign_lhs context
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|
1997 return (symbol_table::is_variable (name) |
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move static lexer helper functions to lexical_feedback class
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|
1998 || (pending_local_variables.find (name) |
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move static lexer helper functions to lexical_feedback class
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|
1999 != pending_local_variables.end ())); |
2702 | 2000 } |
2001 | |
16113
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move static lexer helper functions to lexical_feedback class
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diff
changeset
|
2002 std::string |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
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changeset
|
2003 lexical_feedback::grab_block_comment (stream_reader& reader, bool& eof) |
7723
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first pass at handling block comments
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|
2004 { |
74f5e0c7de9e
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|
2005 std::string buf; |
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diff
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|
2006 |
74f5e0c7de9e
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|
2007 bool at_bol = true; |
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first pass at handling block comments
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diff
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|
2008 bool look_for_marker = false; |
74f5e0c7de9e
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diff
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|
2009 |
74f5e0c7de9e
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diff
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|
2010 bool warned_incompatible = false; |
74f5e0c7de9e
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diff
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|
2011 |
74f5e0c7de9e
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diff
changeset
|
2012 int c = 0; |
74f5e0c7de9e
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7722
diff
changeset
|
2013 |
74f5e0c7de9e
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parents:
7722
diff
changeset
|
2014 while ((c = reader.getc ()) != EOF) |
74f5e0c7de9e
first pass at handling block comments
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parents:
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diff
changeset
|
2015 { |
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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|
2016 current_input_column++; |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
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diff
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|
2017 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2018 if (look_for_marker) |
10315
57a59eae83cc
untabify src C++ source files
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|
2019 { |
57a59eae83cc
untabify src C++ source files
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changeset
|
2020 at_bol = false; |
57a59eae83cc
untabify src C++ source files
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changeset
|
2021 look_for_marker = false; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2022 |
57a59eae83cc
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changeset
|
2023 if (c == '{' || c == '}') |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2024 { |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2025 std::string tmp_buf (1, static_cast<char> (c)); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2026 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2027 int type = c; |
57a59eae83cc
untabify src C++ source files
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parents:
10182
diff
changeset
|
2028 |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2029 bool done = false; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2030 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2031 while ((c = reader.getc ()) != EOF && ! done) |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2032 { |
16113
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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changeset
|
2033 current_input_column++; |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2034 |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2035 switch (c) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2036 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2037 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2038 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2039 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2040 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2041 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2042 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2043 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2044 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2045 at_bol = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2046 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2047 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2048 if (type == '{') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2049 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
2050 block_comment_nesting_level++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2051 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2052 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2053 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2054 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2055 block_comment_nesting_level--; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2056 promptflag++; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2057 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2058 if (block_comment_nesting_level == 0) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2059 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2060 buf += grab_comment_block (reader, true, eof); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2061 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2062 return buf; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2063 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2064 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2065 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2066 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2067 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2068 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2069 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2070 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2071 buf += tmp_buf; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2072 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2073 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2074 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2075 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2076 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2077 } |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2078 |
7898
cce16b4e0970
lex.l (grab_block_comment): Use parens around || expression within && expression
John W. Eaton <jwe@octave.org>
parents:
7728
diff
changeset
|
2079 if (at_bol && (c == '%' || c == '#')) |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2080 { |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2081 if (c == '#' && ! warned_incompatible) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2082 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2083 warned_incompatible = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2084 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2085 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2086 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2087 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2088 look_for_marker = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2089 } |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2090 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2091 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2092 buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2093 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2094 if (c == '\n') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2095 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2096 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2097 at_bol = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2098 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2099 } |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2100 } |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2101 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2102 if (c == EOF) |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2103 eof = true; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2104 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2105 return buf; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2106 } |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2107 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2108 std::string |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2109 lexical_feedback::grab_comment_block (stream_reader& reader, bool at_bol, |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2110 bool& eof) |
1 | 2111 { |
4426 | 2112 std::string buf; |
1019 | 2113 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2114 // TRUE means we are at the beginning of a comment block. |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2115 bool begin_comment = false; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2116 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2117 // TRUE means we are currently reading a comment block. |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2118 bool in_comment = false; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2119 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2120 bool warned_incompatible = false; |
3665 | 2121 |
1019 | 2122 int c = 0; |
1 | 2123 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2124 while ((c = reader.getc ()) != EOF) |
1019 | 2125 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2126 current_input_column++; |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2127 |
2300 | 2128 if (begin_comment) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2129 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2130 if (c == '%' || c == '#') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2131 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2132 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2133 continue; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2134 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2135 else if (at_bol && c == '{') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2136 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2137 std::string tmp_buf (1, static_cast<char> (c)); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2138 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2139 bool done = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2140 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2141 while ((c = reader.getc ()) != EOF && ! done) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2142 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2143 current_input_column++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2144 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2145 switch (c) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2146 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2147 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2148 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2149 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2150 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2151 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2152 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2153 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2154 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2155 at_bol = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2156 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2157 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2158 block_comment_nesting_level++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2159 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2160 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2161 buf += grab_block_comment (reader, eof); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2162 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2163 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2164 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2165 if (eof) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2166 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2167 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2168 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2169 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2170 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2171 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2172 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2173 buf += tmp_buf; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2174 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2175 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2176 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2177 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2178 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2179 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2180 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2181 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2182 begin_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2183 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2184 } |
2300 | 2185 |
1019 | 2186 if (in_comment) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2187 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2188 buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2189 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2190 if (c == '\n') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2191 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2192 at_bol = true; |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2193 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2194 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2195 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2196 // FIXME -- bailing out here prevents things like |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2197 // |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2198 // octave> # comment |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2199 // octave> x = 1 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2200 // |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2201 // from failing at the command line, while still |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2202 // allowing blocks of comments to be grabbed properly |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2203 // for function doc strings. But only the first line of |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2204 // a mult-line doc string will be picked up for |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2205 // functions defined on the command line. We need a |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2206 // better way of collecting these comments... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2207 if (! (reading_fcn_file || reading_script_file)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2208 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2209 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2210 } |
1019 | 2211 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2212 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2213 switch (c) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2214 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2215 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2216 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2217 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2218 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2219 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2220 if (! warned_incompatible) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2221 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2222 warned_incompatible = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2223 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2224 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2225 // fall through... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2226 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2227 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2228 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2229 begin_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2230 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2231 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2232 default: |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2233 current_input_column--; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2234 reader.ungetc (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2235 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2236 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2237 } |
1019 | 2238 } |
991 | 2239 |
1019 | 2240 done: |
991 | 2241 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2242 if (c == EOF) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2243 eof = true; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2244 |
4426 | 2245 return buf; |
1 | 2246 } |
2247 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2248 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2249 lexical_feedback::process_comment (bool start_in_block, bool& eof) |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2250 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2251 eof = false; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2252 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2253 std::string help_txt; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2254 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2255 if (! help_buf.empty ()) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2256 help_txt = help_buf.top (); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2257 |
16116
67f71e2a6190
store pointer to current lexer in flex_stream_reader object
John W. Eaton <jwe@octave.org>
parents:
16114
diff
changeset
|
2258 flex_stream_reader flex_reader (this, yytext); |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2259 |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2260 // process_comment is only supposed to be called when we are not |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2261 // initially looking at a block comment. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2262 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2263 std::string txt = start_in_block |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2264 ? grab_block_comment (flex_reader, eof) |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2265 : grab_comment_block (flex_reader, false, eof); |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2266 |
8535 | 2267 if (lexer_debug_flag) |
8536
de1b944d5306
lex.l: finish previous change
John W. Eaton <jwe@octave.org>
parents:
8535
diff
changeset
|
2268 std::cerr << "C: " << txt << std::endl; |
8535 | 2269 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2270 if (help_txt.empty () && nesting_level.none ()) |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2271 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2272 if (! help_buf.empty ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2273 help_buf.pop (); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2274 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2275 help_buf.push (txt); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2276 } |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2277 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2278 octave_comment_buffer::append (txt); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2279 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2280 current_input_column = 1; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2281 quote_is_transpose = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2282 convert_spaces_to_comma = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2283 at_beginning_of_statement = true; |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2284 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2285 if (YY_START == COMMAND_START) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2286 BEGIN (INITIAL); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2287 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2288 if (nesting_level.none ()) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2289 return '\n'; |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2290 else if (nesting_level.is_bracket_or_brace ()) |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2291 return ';'; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2292 else |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2293 return 0; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2294 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2295 |
3263 | 2296 // Recognize separators. If the separator is a CRLF pair, it is |
2297 // replaced by a single LF. | |
2298 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2299 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2300 lexical_feedback::next_token_is_sep_op (void) |
3263 | 2301 { |
2302 bool retval = false; | |
2303 | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2304 int c = text_yyinput (); |
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2305 |
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2306 retval = match_any (c, ",;\n]"); |
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2307 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2308 xunput (c, yytext); |
3263 | 2309 |
2310 return retval; | |
2311 } | |
2312 | |
767 | 2313 // Try to determine if the next token should be treated as a postfix |
2314 // unary operator. This is ugly, but it seems to do the right thing. | |
2315 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2316 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2317 lexical_feedback::next_token_is_postfix_unary_op (bool spc_prev) |
1 | 2318 { |
2857 | 2319 bool un_op = false; |
1 | 2320 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2321 int c0 = text_yyinput (); |
1 | 2322 |
3246 | 2323 if (c0 == '\'' && ! spc_prev) |
2324 { | |
2325 un_op = true; | |
2326 } | |
2327 else if (c0 == '.') | |
2328 { | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2329 int c1 = text_yyinput (); |
3246 | 2330 un_op = (c1 == '\''); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2331 xunput (c1, yytext); |
3246 | 2332 } |
4613 | 2333 else if (c0 == '+') |
2334 { | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2335 int c1 = text_yyinput (); |
4613 | 2336 un_op = (c1 == '+'); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2337 xunput (c1, yytext); |
4613 | 2338 } |
2339 else if (c0 == '-') | |
2340 { | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2341 int c1 = text_yyinput (); |
4613 | 2342 un_op = (c1 == '-'); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2343 xunput (c1, yytext); |
4613 | 2344 } |
1 | 2345 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2346 xunput (c0, yytext); |
1 | 2347 |
2348 return un_op; | |
2349 } | |
2350 | |
767 | 2351 // Try to determine if the next token should be treated as a binary |
3246 | 2352 // operator. |
1521 | 2353 // |
3246 | 2354 // This kluge exists because whitespace is not always ignored inside |
3774 | 2355 // the square brackets that are used to create matrix objects (though |
2356 // spacing only really matters in the cases that can be interpreted | |
2357 // either as binary ops or prefix unary ops: currently just +, -). | |
2358 // | |
3779 | 2359 // Note that a line continuation directly following a + or - operator |
2360 // (e.g., the characters '[' 'a' ' ' '+' '\' LFD 'b' ']') will be | |
2361 // parsed as a binary operator. | |
767 | 2362 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2363 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2364 lexical_feedback::next_token_is_bin_op (bool spc_prev) |
1 | 2365 { |
2857 | 2366 bool bin_op = false; |
1 | 2367 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2368 int c0 = text_yyinput (); |
1 | 2369 |
2370 switch (c0) | |
2371 { | |
777 | 2372 case '+': |
2373 case '-': | |
3774 | 2374 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2375 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2376 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2377 switch (c1) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2378 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2379 case '+': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2380 case '-': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2381 // Unary ops, spacing doesn't matter. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2382 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2383 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2384 case '=': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2385 // Binary ops, spacing doesn't matter. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2386 bin_op = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2387 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2388 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2389 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2390 // Could be either, spacing matters. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2391 bin_op = looks_like_bin_op (spc_prev, c1); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2392 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2393 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2394 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2395 xunput (c1, yytext); |
3774 | 2396 } |
2397 break; | |
2398 | |
2399 case ':': | |
3246 | 2400 case '/': |
2401 case '\\': | |
2402 case '^': | |
3774 | 2403 // Always a binary op (may also include /=, \=, and ^=). |
2404 bin_op = true; | |
1276 | 2405 break; |
2406 | |
3246 | 2407 // .+ .- ./ .\ .^ .* .** |
1554 | 2408 case '.': |
2409 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2410 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2411 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2412 if (match_any (c1, "+-/\\^*")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2413 // Always a binary op (may also include .+=, .-=, ./=, ...). |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2414 bin_op = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2415 else if (! isdigit (c1) && c1 != ' ' && c1 != '\t' && c1 != '.') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2416 // A structure element reference is a binary op. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2417 bin_op = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2418 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2419 xunput (c1, yytext); |
1554 | 2420 } |
2421 break; | |
2422 | |
3246 | 2423 // = == & && | || * ** |
2424 case '=': | |
1 | 2425 case '&': |
3246 | 2426 case '|': |
1 | 2427 case '*': |
3774 | 2428 // Always a binary op (may also include ==, &&, ||, **). |
2429 bin_op = true; | |
3246 | 2430 break; |
2431 | |
3774 | 2432 // < <= <> > >= |
1 | 2433 case '<': |
2434 case '>': | |
3774 | 2435 // Always a binary op (may also include <=, <>, >=). |
2436 bin_op = true; | |
2437 break; | |
2438 | |
2439 // ~= != | |
777 | 2440 case '~': |
2441 case '!': | |
3246 | 2442 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2443 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2444 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2445 // ~ and ! can be unary ops, so require following =. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2446 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2447 bin_op = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2448 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2449 xunput (c1, yytext); |
3246 | 2450 } |
1 | 2451 break; |
2452 | |
2453 default: | |
1276 | 2454 break; |
1 | 2455 } |
2456 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2457 xunput (c0, yytext); |
1 | 2458 |
2459 return bin_op; | |
2460 } | |
2461 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2462 // FIXME -- we need to handle block comments here. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2463 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2464 void |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2465 lexical_feedback::scan_for_comments (const char *text) |
3665 | 2466 { |
2467 std::string comment_buf; | |
2468 | |
2469 bool in_comment = false; | |
2470 bool beginning_of_comment = false; | |
2471 | |
2472 int len = strlen (text); | |
2473 int i = 0; | |
2474 | |
2475 while (i < len) | |
2476 { | |
2477 char c = text[i++]; | |
2478 | |
2479 switch (c) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2480 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2481 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2482 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2483 if (in_comment) |
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 if (! beginning_of_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2486 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2487 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2488 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2489 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2490 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2491 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2492 beginning_of_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2493 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2494 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2495 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2496 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2497 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2498 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2499 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2500 octave_comment_buffer::append (comment_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2501 comment_buf.resize (0); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2502 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2503 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2504 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2505 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2506 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2507 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2508 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2509 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2510 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2511 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2512 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2513 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2514 } |
3665 | 2515 } |
2516 | |
2517 if (! comment_buf.empty ()) | |
2518 octave_comment_buffer::append (comment_buf); | |
2519 } | |
2520 | |
1001 | 2521 // Discard whitespace, including comments and continuations. |
2522 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2523 // FIXME -- we need to handle block comments here. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2524 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2525 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2526 lexical_feedback::eat_whitespace (void) |
975 | 2527 { |
16106
031117f4db7c
use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents:
16105
diff
changeset
|
2528 int retval = lexical_feedback::NO_WHITESPACE; |
3665 | 2529 |
2530 std::string comment_buf; | |
2531 | |
2857 | 2532 bool in_comment = false; |
3665 | 2533 bool beginning_of_comment = false; |
2534 | |
2535 int c = 0; | |
2536 | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2537 while ((c = text_yyinput ()) != EOF) |
975 | 2538 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2539 current_input_column++; |
975 | 2540 |
2541 switch (c) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2542 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2543 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2544 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2545 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2546 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2547 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2548 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2549 } |
16106
031117f4db7c
use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents:
16105
diff
changeset
|
2550 retval |= lexical_feedback::SPACE_OR_TAB; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2551 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2552 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2553 case '\n': |
16106
031117f4db7c
use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents:
16105
diff
changeset
|
2554 retval |= lexical_feedback::NEWLINE; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2555 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2556 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2557 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2558 octave_comment_buffer::append (comment_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2559 comment_buf.resize (0); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2560 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2561 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2562 } |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2563 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2564 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2565 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2566 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2567 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2568 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2569 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2570 if (! beginning_of_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2571 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2572 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2573 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2574 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2575 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2576 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2577 beginning_of_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2578 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2579 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2580 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2581 case '.': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2582 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2583 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2584 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2585 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2586 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2587 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2588 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2589 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2590 if (have_ellipsis_continuation ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2591 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2592 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2593 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2594 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2595 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2596 case '\\': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2597 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2598 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2599 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2600 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2601 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2602 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2603 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2604 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2605 if (have_continuation ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2606 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2607 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2608 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2609 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2610 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2611 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2612 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2613 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2614 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2615 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2616 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2617 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2618 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2619 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2620 } |
975 | 2621 } |
2622 | |
3665 | 2623 if (! comment_buf.empty ()) |
2624 octave_comment_buffer::append (comment_buf); | |
2625 | |
975 | 2626 done: |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2627 xunput (c, yytext); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2628 current_input_column--; |
1001 | 2629 return retval; |
975 | 2630 } |
2631 | |
3220 | 2632 static inline bool |
2633 looks_like_hex (const char *s, int len) | |
2634 { | |
2635 return (len > 2 && s[0] == '0' && (s[1] == 'x' || s[1] == 'X')); | |
2636 } | |
2637 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2638 void |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2639 lexical_feedback::handle_number (void) |
972 | 2640 { |
3220 | 2641 double value = 0.0; |
2642 int nread = 0; | |
2643 | |
3598 | 2644 if (looks_like_hex (yytext, strlen (yytext))) |
3220 | 2645 { |
2646 unsigned long ival; | |
3598 | 2647 |
2648 nread = sscanf (yytext, "%lx", &ival); | |
2649 | |
3220 | 2650 value = static_cast<double> (ival); |
2651 } | |
2652 else | |
3598 | 2653 { |
2654 char *tmp = strsave (yytext); | |
2655 | |
2656 char *idx = strpbrk (tmp, "Dd"); | |
2621 | 2657 |
3598 | 2658 if (idx) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2659 *idx = 'e'; |
3598 | 2660 |
2661 nread = sscanf (tmp, "%lf", &value); | |
2662 | |
2663 delete [] tmp; | |
2664 } | |
972 | 2665 |
1826 | 2666 // If yytext doesn't contain a valid number, we are in deep doo doo. |
985 | 2667 |
972 | 2668 assert (nread == 1); |
2669 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2670 quote_is_transpose = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2671 convert_spaces_to_comma = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2672 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
|
2673 at_beginning_of_statement = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2674 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2675 yylval.tok_val = new token (value, yytext, input_line_number, |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2676 current_input_column); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2677 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2678 token_stack.push (yylval.tok_val); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2679 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2680 current_input_column += yyleng; |
972 | 2681 |
2682 do_comma_insert_check (); | |
2683 } | |
2684 | |
1001 | 2685 // We have seen a backslash and need to find out if it should be |
2686 // treated as a continuation character. If so, this eats it, up to | |
2687 // and including the new line character. | |
2688 // | |
973 | 2689 // Match whitespace only, followed by a comment character or newline. |
2690 // Once a comment character is found, discard all input until newline. | |
2691 // If non-whitespace characters are found before comment | |
2692 // characters, return 0. Otherwise, return 1. | |
2693 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2694 // FIXME -- we need to handle block comments here. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2695 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2696 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2697 lexical_feedback::have_continuation (bool trailing_comments_ok) |
973 | 2698 { |
5765 | 2699 std::ostringstream buf; |
973 | 2700 |
3665 | 2701 std::string comment_buf; |
2702 | |
2857 | 2703 bool in_comment = false; |
3665 | 2704 bool beginning_of_comment = false; |
2705 | |
2706 int c = 0; | |
2707 | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2708 while ((c = text_yyinput ()) != EOF) |
973 | 2709 { |
3802 | 2710 buf << static_cast<char> (c); |
973 | 2711 |
2712 switch (c) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2713 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2714 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2715 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2716 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2717 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2718 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2719 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2720 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2721 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2722 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2723 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2724 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2725 if (trailing_comments_ok) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2726 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2727 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2728 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2729 if (! beginning_of_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2730 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2731 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2732 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2733 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2734 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2735 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2736 beginning_of_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2737 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2738 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2739 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2740 goto cleanup; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2741 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2742 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2743 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2744 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2745 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2746 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2747 octave_comment_buffer::append (comment_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2748 } |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2749 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2750 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2751 gripe_matlab_incompatible_continuation (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2752 return true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2753 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2754 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2755 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2756 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2757 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2758 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2759 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2760 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2761 goto cleanup; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2762 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2763 } |
973 | 2764 } |
2765 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2766 xunput (c, yytext); |
2857 | 2767 return false; |
973 | 2768 |
3096 | 2769 cleanup: |
4051 | 2770 |
5765 | 2771 std::string s = buf.str (); |
4051 | 2772 |
2773 int len = s.length (); | |
2774 while (len--) | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2775 xunput (s[len], yytext); |
3096 | 2776 |
2857 | 2777 return false; |
973 | 2778 } |
2779 | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
2780 // We have seen a '.' and need to see if it is the start of a |
1001 | 2781 // continuation. If so, this eats it, up to and including the new |
2782 // line character. | |
2783 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2784 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2785 lexical_feedback::have_ellipsis_continuation (bool trailing_comments_ok) |
973 | 2786 { |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2787 char c1 = text_yyinput (); |
973 | 2788 if (c1 == '.') |
2789 { | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2790 char c2 = text_yyinput (); |
1091 | 2791 if (c2 == '.' && have_continuation (trailing_comments_ok)) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2792 return true; |
973 | 2793 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2794 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2795 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2796 xunput (c1, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2797 } |
973 | 2798 } |
2799 else | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2800 xunput (c1, yytext); |
973 | 2801 |
2857 | 2802 return false; |
973 | 2803 } |
2804 | |
1001 | 2805 // See if we have a continuation line. If so, eat it and the leading |
2806 // whitespace on the next line. | |
16106
031117f4db7c
use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents:
16105
diff
changeset
|
2807 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2808 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2809 lexical_feedback::eat_continuation (void) |
1001 | 2810 { |
16106
031117f4db7c
use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents:
16105
diff
changeset
|
2811 int retval = lexical_feedback::NO_WHITESPACE; |
3665 | 2812 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2813 int c = text_yyinput (); |
3665 | 2814 |
1001 | 2815 if ((c == '.' && have_ellipsis_continuation ()) |
3105 | 2816 || (c == '\\' && have_continuation ())) |
1001 | 2817 retval = eat_whitespace (); |
2818 else | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2819 xunput (c, yytext); |
1001 | 2820 |
2821 return retval; | |
2822 } | |
2823 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2824 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2825 lexical_feedback::handle_string (char delim) |
973 | 2826 { |
5765 | 2827 std::ostringstream buf; |
973 | 2828 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2829 int bos_line = input_line_number; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2830 int bos_col = current_input_column; |
3805 | 2831 |
973 | 2832 int c; |
1031 | 2833 int escape_pending = 0; |
973 | 2834 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2835 while ((c = text_yyinput ()) != EOF) |
973 | 2836 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2837 current_input_column++; |
973 | 2838 |
3105 | 2839 if (c == '\\') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2840 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2841 if (delim == '\'' || escape_pending) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2842 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2843 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2844 escape_pending = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2845 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2846 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2847 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2848 if (have_continuation (false)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2849 escape_pending = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2850 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2851 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2852 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2853 escape_pending = 1; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2854 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2855 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2856 continue; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2857 } |
973 | 2858 else if (c == '.') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2859 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2860 if (delim == '\'' || ! have_ellipsis_continuation (false)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2861 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2862 } |
973 | 2863 else if (c == '\n') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2864 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2865 error ("unterminated string constant"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2866 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2867 } |
973 | 2868 else if (c == delim) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2869 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2870 if (escape_pending) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2871 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2872 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2873 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2874 c = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2875 if (c == delim) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2876 { |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2877 buf << static_cast<char> (c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2878 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2879 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2880 { |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2881 std::string s; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2882 xunput (c, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2883 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2884 if (delim == '\'') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2885 s = buf.str (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2886 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2887 s = do_string_escapes (buf.str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2888 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2889 quote_is_transpose = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2890 convert_spaces_to_comma = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2891 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2892 yylval.tok_val = new token (s, bos_line, bos_col); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2893 token_stack.push (yylval.tok_val); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2894 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2895 if (delim == '"') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2896 gripe_matlab_incompatible ("\" used as string delimiter"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2897 else if (delim == '\'') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2898 gripe_single_quote_string (); |
3400 | 2899 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2900 looking_for_object_index = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2901 at_beginning_of_statement = false; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2902 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2903 return delim == '"' ? DQ_STRING : SQ_STRING; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2904 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2905 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2906 } |
973 | 2907 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2908 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2909 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2910 } |
973 | 2911 |
1031 | 2912 escape_pending = 0; |
973 | 2913 } |
2914 | |
2915 return LEXICAL_ERROR; | |
2916 } | |
2917 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2918 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2919 lexical_feedback::next_token_is_assign_op (void) |
3208 | 2920 { |
2921 bool retval = false; | |
2922 | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2923 int c0 = text_yyinput (); |
3208 | 2924 |
2925 switch (c0) | |
2926 { | |
2927 case '=': | |
2928 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2929 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2930 xunput (c1, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2931 if (c1 != '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2932 retval = true; |
3208 | 2933 } |
2934 break; | |
2935 | |
2936 case '+': | |
2937 case '-': | |
2938 case '*': | |
2939 case '/': | |
2940 case '\\': | |
2941 case '&': | |
2942 case '|': | |
2943 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2944 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2945 xunput (c1, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2946 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2947 retval = true; |
3208 | 2948 } |
2949 break; | |
2950 | |
2951 case '.': | |
2952 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2953 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2954 if (match_any (c1, "+-*/\\")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2955 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2956 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2957 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2958 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2959 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2960 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2961 xunput (c1, yytext); |
3208 | 2962 } |
2963 break; | |
2964 | |
2965 case '>': | |
2966 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2967 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2968 if (c1 == '>') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2969 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2970 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2971 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2972 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2973 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2974 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2975 xunput (c1, yytext); |
3208 | 2976 } |
2977 break; | |
2978 | |
2979 case '<': | |
2980 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2981 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2982 if (c1 == '<') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2983 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2984 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2985 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2986 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2987 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2988 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2989 xunput (c1, yytext); |
3208 | 2990 } |
2991 break; | |
2992 | |
2993 default: | |
2994 break; | |
2995 } | |
2996 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2997 xunput (c0, yytext); |
3208 | 2998 |
2999 return retval; | |
3000 } | |
3001 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3002 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3003 lexical_feedback::next_token_is_index_op (void) |
4633 | 3004 { |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
3005 int c = text_yyinput (); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
3006 xunput (c, yytext); |
4633 | 3007 return c == '(' || c == '{'; |
3008 } | |
3009 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3010 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3011 lexical_feedback::handle_close_bracket (bool spc_gobbled, int bracket_type) |
971 | 3012 { |
4612 | 3013 int retval = bracket_type; |
3208 | 3014 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3015 if (! nesting_level.none ()) |
971 | 3016 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3017 nesting_level.remove (); |
4613 | 3018 |
3019 if (bracket_type == ']') | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3020 bracketflag--; |
4613 | 3021 else if (bracket_type == '}') |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3022 braceflag--; |
4613 | 3023 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3024 panic_impossible (); |
971 | 3025 } |
3026 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3027 if (bracketflag == 0 && braceflag == 0) |
4323 | 3028 BEGIN (INITIAL); |
1001 | 3029 |
4608 | 3030 if (bracket_type == ']' |
3031 && next_token_is_assign_op () | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3032 && ! looking_at_return_list) |
971 | 3033 { |
3208 | 3034 retval = CLOSE_BRACE; |
971 | 3035 } |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3036 else if ((bracketflag || braceflag) |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3037 && convert_spaces_to_comma |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3038 && (nesting_level.is_bracket () |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3039 || (nesting_level.is_brace () |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3040 && ! looking_at_object_index.front ()))) |
971 | 3041 { |
4633 | 3042 bool index_op = next_token_is_index_op (); |
3043 | |
3044 // Don't insert comma if we are looking at something like | |
3045 // | |
3046 // [x{i}{j}] or [x{i}(j)] | |
3047 // | |
3048 // but do if we are looking at | |
3049 // | |
3050 // [x{i} {j}] or [x{i} (j)] | |
3051 | |
3052 if (spc_gobbled || ! (bracket_type == '}' && index_op)) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3053 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3054 bool bin_op = next_token_is_bin_op (spc_gobbled); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3055 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3056 bool postfix_un_op = next_token_is_postfix_unary_op (spc_gobbled); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3057 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3058 bool sep_op = next_token_is_sep_op (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3059 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3060 if (! (postfix_un_op || bin_op || sep_op)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3061 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3062 maybe_warn_separator_insert (','); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3063 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3064 xunput (',', yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3065 return retval; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3066 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3067 } |
971 | 3068 } |
3069 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3070 quote_is_transpose = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3071 convert_spaces_to_comma = true; |
3208 | 3072 |
3073 return retval; | |
971 | 3074 } |
3075 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3076 void |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3077 lexical_feedback::maybe_unput_comma (int spc_gobbled) |
1072 | 3078 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3079 if (nesting_level.is_bracket () |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3080 || (nesting_level.is_brace () |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3081 && ! looking_at_object_index.front ())) |
1072 | 3082 { |
3246 | 3083 int bin_op = next_token_is_bin_op (spc_gobbled); |
1072 | 3084 |
3246 | 3085 int postfix_un_op = next_token_is_postfix_unary_op (spc_gobbled); |
1072 | 3086 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
3087 int c1 = text_yyinput (); |
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
3088 int c2 = text_yyinput (); |
2970 | 3089 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
3090 xunput (c2, yytext); |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
3091 xunput (c1, yytext); |
2970 | 3092 |
3263 | 3093 int sep_op = next_token_is_sep_op (); |
2970 | 3094 |
1072 | 3095 int dot_op = (c1 == '.' |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3096 && (isalpha (c2) || isspace (c2) || c2 == '_')); |
2970 | 3097 |
3388 | 3098 if (postfix_un_op || bin_op || sep_op || dot_op) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3099 return; |
3388 | 3100 |
3985 | 3101 int index_op = (c1 == '(' || c1 == '{'); |
3388 | 3102 |
4476 | 3103 // If there is no space before the indexing op, we don't insert |
3104 // a comma. | |
3105 | |
3106 if (index_op && ! spc_gobbled) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3107 return; |
4476 | 3108 |
3109 maybe_warn_separator_insert (','); | |
3110 | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
3111 xunput (',', yytext); |
1072 | 3112 } |
3113 } | |
3114 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3115 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3116 lexical_feedback::next_token_can_follow_bin_op (void) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3117 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3118 std::stack<char> buf; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3119 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3120 int c = EOF; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3121 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3122 // Skip whitespace in current statement on current line |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3123 while (true) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3124 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3125 c = text_yyinput (); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3126 |
8767
026c6732ec7a
lex.l (next_token_can_follow_bin_op): push all characters read on to buffer stack
John W. Eaton <jwe@octave.org>
parents:
8746
diff
changeset
|
3127 buf.push (c); |
026c6732ec7a
lex.l (next_token_can_follow_bin_op): push all characters read on to buffer stack
John W. Eaton <jwe@octave.org>
parents:
8746
diff
changeset
|
3128 |
026c6732ec7a
lex.l (next_token_can_follow_bin_op): push all characters read on to buffer stack
John W. Eaton <jwe@octave.org>
parents:
8746
diff
changeset
|
3129 if (match_any (c, ",;\n") || (c != ' ' && c != '\t')) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3130 break; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3131 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3132 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3133 // Restore input. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3134 while (! buf.empty ()) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3135 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3136 xunput (buf.top (), yytext); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3137 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3138 buf.pop (); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3139 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3140 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3141 return (isalnum (c) || match_any (c, "!\"'(-[_{~")); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3142 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3143 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3144 static bool |
10052
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3145 can_be_command (const std::string& tok) |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3146 { |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3147 // Don't allow these names to be treated as commands to avoid |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3148 // surprises when parsing things like "NaN ^2". |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
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10048
diff
changeset
|
3149 |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3150 return ! (tok == "e" |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3151 || tok == "I" || tok == "i" |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
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10048
diff
changeset
|
3152 || tok == "J" || tok == "j" |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3153 || tok == "Inf" || tok == "inf" |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
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10048
diff
changeset
|
3154 || tok == "NaN" || tok == "nan"); |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
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10048
diff
changeset
|
3155 } |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
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10048
diff
changeset
|
3156 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3157 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3158 lexical_feedback::looks_like_command_arg (void) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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8745
diff
changeset
|
3159 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3160 bool retval = true; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3161 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3162 int c0 = text_yyinput (); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3163 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3164 switch (c0) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3165 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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8745
diff
changeset
|
3166 // = == |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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8745
diff
changeset
|
3167 case '=': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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8745
diff
changeset
|
3168 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
3169 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3170 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3171 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3172 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3173 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3174 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3175 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3176 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3177 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3178 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3179 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3180 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3181 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3182 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3183 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3184 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3185 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3186 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3187 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3188 case '(': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3189 case '{': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3190 // Indexing. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3191 retval = false; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3192 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3193 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3194 case '\n': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3195 // EOL. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3196 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3197 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3198 case '\'': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3199 case '"': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3200 // Beginning of a character string. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3201 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3202 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3203 // + - ++ -- += -= |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3204 case '+': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3205 case '-': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3206 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3207 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3208 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3209 switch (c1) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3210 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3211 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3212 // EOL. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3213 case '+': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3214 case '-': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3215 // Unary ops, spacing doesn't matter. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3216 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3217 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3218 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3219 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3220 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3221 if (next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3222 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3223 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3224 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3225 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3226 case '=': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3227 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3228 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3229 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3230 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3231 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3232 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3233 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3234 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3235 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3236 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3237 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3238 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3239 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3240 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3241 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3242 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3243 case ':': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3244 case '/': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3245 case '\\': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3246 case '^': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3247 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3248 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3249 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3250 if (! match_any (c1, ",;\n") && (c1 == ' ' || c1 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3251 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3252 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3253 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3254 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3255 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3256 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3257 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3258 // .+ .- ./ .\ .^ .* .** |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3259 case '.': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3260 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3261 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3262 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3263 if (match_any (c1, "+-/\\^*")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3264 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3265 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3266 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3267 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3268 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3269 int c3 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3270 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3271 if (! match_any (c3, ",;\n") && (c3 == ' ' || c3 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3272 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3273 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3274 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3275 xunput (c3, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3276 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3277 else if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3278 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3279 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3280 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3281 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3282 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3283 else if (! match_any (c1, ",;\n") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3284 && (! isdigit (c1) && c1 != ' ' && c1 != '\t' |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3285 && c1 != '.')) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3286 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3287 // Structure reference. FIXME -- is this a complete check? |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3288 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3289 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3290 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3291 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3292 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3293 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3294 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3295 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3296 // & && | || * ** |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3297 case '&': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3298 case '|': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3299 case '*': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3300 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3301 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3302 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3303 if (c1 == c0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3304 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3305 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3306 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3307 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3308 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3309 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3310 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3311 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3312 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3313 else if (! match_any (c1, ",;\n") && (c1 == ' ' || c1 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3314 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3315 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3316 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3317 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3318 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3319 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3320 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3321 // < <= > >= |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3322 case '<': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3323 case '>': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3324 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3325 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3326 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3327 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3328 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3329 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3330 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3331 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3332 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3333 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3334 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3335 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3336 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3337 else if (! match_any (c1, ",;\n") && (c1 == ' ' || c1 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3338 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3339 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3340 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3341 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3342 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3343 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3344 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3345 // ~= != |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3346 case '~': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3347 case '!': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3348 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3349 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3350 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3351 // ~ and ! can be unary ops, so require following =. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3352 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3353 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3354 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3355 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3356 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3357 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3358 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3359 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3360 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3361 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3362 else if (! match_any (c1, ",;\n") && (c1 == ' ' || c1 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3363 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3364 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3365 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3366 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3367 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3368 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3369 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3370 default: |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3371 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3372 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3373 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3374 xunput (c0, yytext); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3375 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3376 return retval; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3377 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3378 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3379 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3380 lexical_feedback::handle_superclass_identifier (void) |
9476 | 3381 { |
3382 eat_continuation (); | |
3383 | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3384 std::string pkg; |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3385 std::string meth = strip_trailing_whitespace (yytext); |
9476 | 3386 size_t pos = meth.find ("@"); |
3387 std::string cls = meth.substr (pos).substr (1); | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3388 meth = meth.substr (0, pos - 1); |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3389 |
9476 | 3390 pos = cls.find ("."); |
3391 if (pos != std::string::npos) | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3392 { |
9476 | 3393 pkg = cls.substr (pos).substr (1); |
3394 cls = cls.substr (0, pos - 1); | |
3395 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3396 |
9476 | 3397 int kw_token = (is_keyword_token (meth) || is_keyword_token (cls) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3398 || is_keyword_token (pkg)); |
9476 | 3399 if (kw_token) |
3400 { | |
3401 error ("method, class and package names may not be keywords"); | |
3402 return LEXICAL_ERROR; | |
3403 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3404 |
9476 | 3405 yylval.tok_val |
3406 = new token (meth.empty () ? 0 : &(symbol_table::insert (meth)), | |
3407 cls.empty () ? 0 : &(symbol_table::insert (cls)), | |
3408 pkg.empty () ? 0 : &(symbol_table::insert (pkg)), | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3409 input_line_number, |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3410 current_input_column); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3411 token_stack.push (yylval.tok_val); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3412 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3413 convert_spaces_to_comma = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3414 current_input_column += yyleng; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3415 |
9476 | 3416 return SUPERCLASSREF; |
3417 } | |
3418 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3419 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3420 lexical_feedback::handle_meta_identifier (void) |
9476 | 3421 { |
3422 eat_continuation (); | |
3423 | |
3424 std::string pkg; | |
3425 std::string cls = strip_trailing_whitespace (yytext).substr (1); | |
3426 size_t pos = cls.find ("."); | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3427 |
9476 | 3428 if (pos != std::string::npos) |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3429 { |
9476 | 3430 pkg = cls.substr (pos).substr (1); |
3431 cls = cls.substr (0, pos - 1); | |
3432 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3433 |
9476 | 3434 int kw_token = is_keyword_token (cls) || is_keyword_token (pkg); |
3435 if (kw_token) | |
3436 { | |
3437 error ("class and package names may not be keywords"); | |
3438 return LEXICAL_ERROR; | |
3439 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3440 |
9476 | 3441 yylval.tok_val |
3442 = new token (cls.empty () ? 0 : &(symbol_table::insert (cls)), | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3443 pkg.empty () ? 0 : &(symbol_table::insert (pkg)), |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3444 input_line_number, |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3445 current_input_column); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3446 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3447 token_stack.push (yylval.tok_val); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3448 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3449 convert_spaces_to_comma = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3450 current_input_column += yyleng; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3451 |
9476 | 3452 return METAQUERY; |
3453 } | |
3454 | |
767 | 3455 // Figure out exactly what kind of token to return when we have seen |
4238 | 3456 // an identifier. Handles keywords. Return -1 if the identifier |
3457 // should be ignored. | |
767 | 3458 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3459 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3460 lexical_feedback::handle_identifier (void) |
146 | 3461 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3462 bool at_bos = at_beginning_of_statement; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3463 |
3974 | 3464 std::string tok = strip_trailing_whitespace (yytext); |
3465 | |
3466 int c = yytext[yyleng-1]; | |
3467 | |
16106
031117f4db7c
use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents:
16105
diff
changeset
|
3468 bool cont_is_spc = (eat_continuation () != lexical_feedback::NO_WHITESPACE); |
3974 | 3469 |
3470 int spc_gobbled = (cont_is_spc || c == ' ' || c == '\t'); | |
3471 | |
2970 | 3472 // If we are expecting a structure element, avoid recognizing |
3473 // keywords and other special names and return STRUCT_ELT, which is | |
3474 // a string that is also a valid identifier. But first, we have to | |
3475 // decide whether to insert a comma. | |
747 | 3476 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3477 if (looking_at_indirect_ref) |
1072 | 3478 { |
2970 | 3479 do_comma_insert_check (); |
3480 | |
1072 | 3481 maybe_unput_comma (spc_gobbled); |
2819 | 3482 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3483 yylval.tok_val = new token (tok, input_line_number, |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3484 current_input_column); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3485 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3486 token_stack.push (yylval.tok_val); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3487 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3488 quote_is_transpose = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3489 convert_spaces_to_comma = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3490 looking_for_object_index = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3491 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3492 current_input_column += yyleng; |
2819 | 3493 |
2970 | 3494 return STRUCT_ELT; |
1072 | 3495 } |
747 | 3496 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3497 at_beginning_of_statement = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3498 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3499 // The is_keyword_token may reset |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3500 // at_beginning_of_statement. For example, if it sees |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3501 // an else token, then the next token is at the beginning of a |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3502 // statement. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3503 |
4930 | 3504 int kw_token = is_keyword_token (tok); |
3505 | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3506 // If we found a keyword token, then the beginning_of_statement flag |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3507 // is already set. Otherwise, we won't be at the beginning of a |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3508 // statement. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3509 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3510 if (looking_at_function_handle) |
4930 | 3511 { |
3512 if (kw_token) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3513 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3514 error ("function handles may not refer to keywords"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3515 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3516 return LEXICAL_ERROR; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3517 } |
4930 | 3518 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3519 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3520 yylval.tok_val = new token (tok, input_line_number, |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3521 current_input_column); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3522 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3523 token_stack.push (yylval.tok_val); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3524 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3525 current_input_column += yyleng; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3526 quote_is_transpose = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3527 convert_spaces_to_comma = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3528 looking_for_object_index = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3529 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3530 return FCN_HANDLE; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3531 } |
4930 | 3532 } |
3533 | |
5102 | 3534 // If we have a regular keyword, return it. |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3535 // Keywords can be followed by identifiers. |
146 | 3536 |
3537 if (kw_token) | |
3538 { | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3539 if (kw_token >= 0) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3540 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3541 current_input_column += yyleng; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3542 quote_is_transpose = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3543 convert_spaces_to_comma = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3544 looking_for_object_index = false; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3545 } |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3546 |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3547 return kw_token; |
146 | 3548 } |
3549 | |
1826 | 3550 // See if we have a plot keyword (title, using, with, or clear). |
146 | 3551 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
3552 int c1 = text_yyinput (); |
3480 | 3553 |
3554 bool next_tok_is_eq = false; | |
3555 if (c1 == '=') | |
3556 { | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
3557 int c2 = text_yyinput (); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
3558 xunput (c2, yytext); |
3480 | 3559 |
3560 if (c2 != '=') | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3561 next_tok_is_eq = true; |
3480 | 3562 } |
3563 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
3564 xunput (c1, yytext); |
1001 | 3565 |
2702 | 3566 // Kluge alert. |
3567 // | |
3568 // If we are looking at a text style function, set up to gobble its | |
2745 | 3569 // arguments. |
3570 // | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3571 // If the following token is '=', or if we are parsing a function |
3189 | 3572 // return list or function parameter list, or if we are looking at |
3573 // something like [ab,cd] = foo (), force the symbol to be inserted | |
3574 // as a variable in the current symbol table. | |
2702 | 3575 |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3576 if (! is_variable (tok)) |
2702 | 3577 { |
10052
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3578 if (at_bos && spc_gobbled && can_be_command (tok) |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3579 && looks_like_command_arg ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3580 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3581 BEGIN (COMMAND_START); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3582 } |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3583 else if (next_tok_is_eq |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3584 || looking_at_decl_list |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3585 || looking_at_return_list |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3586 || (looking_at_parameter_list |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3587 && ! looking_at_initializer_expression)) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3588 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3589 symbol_table::force_variable (tok); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3590 } |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3591 else if (looking_at_matrix_or_assign_lhs) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3592 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3593 pending_local_variables.insert (tok); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3594 } |
2702 | 3595 } |
3596 | |
4234 | 3597 // Find the token in the symbol table. Beware the magic |
3598 // transformation of the end keyword... | |
3599 | |
3600 if (tok == "end") | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3601 tok = "__end__"; |
146 | 3602 |
7336 | 3603 yylval.tok_val = new token (&(symbol_table::insert (tok)), |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3604 input_line_number, |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3605 current_input_column); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3606 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3607 token_stack.push (yylval.tok_val); |
146 | 3608 |
1826 | 3609 // After seeing an identifer, it is ok to convert spaces to a comma |
3610 // (if needed). | |
146 | 3611 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3612 convert_spaces_to_comma = true; |
146 | 3613 |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3614 if (! (next_tok_is_eq || YY_START == COMMAND_START)) |
2877 | 3615 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3616 quote_is_transpose = true; |
146 | 3617 |
2877 | 3618 do_comma_insert_check (); |
3619 | |
3620 maybe_unput_comma (spc_gobbled); | |
146 | 3621 } |
3622 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3623 current_input_column += yyleng; |
146 | 3624 |
9324
29563379fa9b
don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
3625 if (tok != "__end__") |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3626 looking_for_object_index = true; |
9324
29563379fa9b
don't look for object index after keyword
John W. Eaton <jwe@octave.org>
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8974
diff
changeset
|
3627 |
146 | 3628 return NAME; |
3629 } | |
3630 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3631 void |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3632 lexical_feedback::maybe_warn_separator_insert (char sep) |
3388 | 3633 { |
3523 | 3634 std::string nm = curr_fcn_file_full_name; |
3388 | 3635 |
5794 | 3636 if (nm.empty ()) |
3637 warning_with_id ("Octave:separator-insert", | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
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14161
diff
changeset
|
3638 "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>
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16111
diff
changeset
|
3639 sep, input_line_number); |
5794 | 3640 else |
3641 warning_with_id ("Octave:separator-insert", | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3642 "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>
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16111
diff
changeset
|
3643 sep, input_line_number, nm.c_str ()); |
3388 | 3644 } |
3645 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3646 void |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
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3647 lexical_feedback::gripe_single_quote_string (void) |
3400 | 3648 { |
3523 | 3649 std::string nm = curr_fcn_file_full_name; |
3400 | 3650 |
5794 | 3651 if (nm.empty ()) |
3652 warning_with_id ("Octave:single-quote-string", | |
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3653 "single quote delimited string near line %d", |
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3654 input_line_number); |
5794 | 3655 else |
3656 warning_with_id ("Octave:single-quote-string", | |
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3657 "single quote delimited string near line %d of file %s", |
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3658 input_line_number, nm.c_str ()); |
3400 | 3659 } |
3660 | |
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3661 void |
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3662 lexical_feedback::gripe_matlab_incompatible (const std::string& msg) |
4037 | 3663 { |
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3664 std::string nm = curr_fcn_file_full_name; |
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3665 |
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3666 if (nm.empty ()) |
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3667 warning_with_id ("Octave:matlab-incompatible", |
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3668 "potential Matlab compatibility problem: %s", |
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3669 msg.c_str ()); |
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3670 else |
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3671 warning_with_id ("Octave:matlab-incompatible", |
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3672 "potential Matlab compatibility problem: %s near line %d offile %s", |
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3673 msg.c_str (), input_line_number, nm.c_str ()); |
4037 | 3674 } |
3675 | |
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3676 void |
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3677 lexical_feedback::maybe_gripe_matlab_incompatible_comment (char c) |
4037 | 3678 { |
3679 if (c == '#') | |
3680 gripe_matlab_incompatible ("# used as comment character"); | |
3681 } | |
3682 | |
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3683 void |
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3684 lexical_feedback::gripe_matlab_incompatible_continuation (void) |
4037 | 3685 { |
3686 gripe_matlab_incompatible ("\\ used as line continuation marker"); | |
3687 } | |
3688 | |
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3689 void |
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3690 lexical_feedback::gripe_matlab_incompatible_operator (const std::string& op) |
4037 | 3691 { |
3692 std::string t = op; | |
3693 int n = t.length (); | |
3694 if (t[n-1] == '\n') | |
3695 t.resize (n-1); | |
3696 gripe_matlab_incompatible (t + " used as operator"); | |
3697 } |