Mercurial > octave-dspies
annotate libinterp/parse-tree/lex.ll @ 16117:771186909285
maint: move class definition in lex.ll
* lex.ll: Move flex_stream_reader definition just before
lexical_feedback member functions.
author | John W. Eaton <jwe@octave.org> |
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date | Tue, 26 Feb 2013 11:47:59 -0500 |
parents | 67f71e2a6190 |
children | f8e463523229 |
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 display_token (tok_val); \ |
8535 | 130 if (lexer_debug_flag) \ |
131 { \ | |
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132 std::cerr << "R: "; \ |
8535 | 133 display_token (tok_val); \ |
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134 std::cerr << std::endl; \ |
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135 } \ |
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136 return tok_val; \ |
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137 } \ |
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138 while (0) |
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139 |
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) \ | |
210 lexer_debug (pattern, yytext); \ | |
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); |
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229 static void display_token (int tok); |
8535 | 230 static void lexer_debug (const char *pattern, const char *text); |
1 | 231 |
232 %} | |
233 | |
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234 D [0-9] |
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235 S [ \t] |
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236 NL ((\n)|(\r)|(\r\n)) |
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237 SNL ({S}|{NL}) |
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238 EL (\.\.\.) |
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239 BS (\\) |
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240 CONT ({EL}|{BS}) |
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241 Im [iIjJ] |
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242 CCHAR [#%] |
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243 COMMENT ({CCHAR}.*{NL}) |
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244 SNLCMT ({SNL}|{COMMENT}) |
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245 NOT ((\~)|(\!)) |
4037 | 246 POW ((\*\*)|(\^)) |
247 EPOW (\.{POW}) | |
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248 IDENT ([_$a-zA-Z][_$a-zA-Z0-9]*) |
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249 EXPON ([DdEe][+-]?{D}+) |
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250 NUMBER (({D}+\.?{D}*{EXPON}?)|(\.{D}+{EXPON}?)|(0[xX][0-9a-fA-F]+)) |
1 | 251 %% |
252 | |
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253 %{ |
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254 // Make script and function files start with a bogus token. This makes |
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255 // the parser go down a special path. |
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256 %} |
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257 |
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258 <SCRIPT_FILE_BEGIN>. { |
8535 | 259 LEXER_DEBUG ("<SCRIPT_FILE_BEGIN>."); |
260 | |
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261 BEGIN (INITIAL); |
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262 curr_lexer->xunput (yytext[0], yytext); |
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263 COUNT_TOK_AND_RETURN (SCRIPT_FILE); |
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264 } |
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265 |
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266 <FUNCTION_FILE_BEGIN>. { |
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267 LEXER_DEBUG ("<FUNCTION_FILE_BEGIN>."); |
8535 | 268 |
4323 | 269 BEGIN (INITIAL); |
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270 curr_lexer->xunput (yytext[0], yytext); |
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271 COUNT_TOK_AND_RETURN (FUNCTION_FILE); |
4238 | 272 } |
273 | |
968 | 274 %{ |
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275 // Help and other command-style functions. |
968 | 276 %} |
277 | |
4208 | 278 <COMMAND_START>{NL} { |
8535 | 279 LEXER_DEBUG ("<COMMAND_START>{NL}"); |
280 | |
4323 | 281 BEGIN (INITIAL); |
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282 curr_lexer->input_line_number++; |
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283 curr_lexer->current_input_column = 1; |
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284 |
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285 curr_lexer->quote_is_transpose = false; |
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286 curr_lexer->convert_spaces_to_comma = true; |
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287 curr_lexer->looking_for_object_index = false; |
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288 curr_lexer->at_beginning_of_statement = true; |
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289 |
4910 | 290 COUNT_TOK_AND_RETURN ('\n'); |
967 | 291 } |
1 | 292 |
4208 | 293 <COMMAND_START>[\;\,] { |
8535 | 294 LEXER_DEBUG ("<COMMAND_START>[\\;\\,]"); |
295 | |
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296 curr_lexer->looking_for_object_index = false; |
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297 curr_lexer->at_beginning_of_statement = true; |
5102 | 298 |
299 BEGIN (INITIAL); | |
300 | |
301 if (strcmp (yytext, ",") == 0) | |
302 TOK_RETURN (','); | |
967 | 303 else |
5102 | 304 TOK_RETURN (';'); |
967 | 305 } |
1 | 306 |
4208 | 307 <COMMAND_START>[\"\'] { |
8535 | 308 LEXER_DEBUG ("<COMMAND_START>[\\\"\\']"); |
309 | |
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310 curr_lexer->at_beginning_of_statement = false; |
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311 |
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312 curr_lexer->current_input_column++; |
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313 int tok = curr_lexer->handle_string (yytext[0]); |
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314 |
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315 COUNT_TOK_AND_RETURN (tok); |
975 | 316 } |
317 | |
4923 | 318 <COMMAND_START>[^#% \t\r\n\;\,\"\'][^ \t\r\n\;\,]*{S}* { |
8535 | 319 LEXER_DEBUG ("<COMMAND_START>[^#% \\t\\r\\n\\;\\,\\\"\\'][^ \\t\\r\\n\\;\\,]*{S}*"); |
320 | |
3523 | 321 std::string tok = strip_trailing_whitespace (yytext); |
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322 |
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323 curr_lexer->looking_for_object_index = false; |
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324 curr_lexer->at_beginning_of_statement = false; |
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325 |
5279 | 326 TOK_PUSH_AND_RETURN (tok, SQ_STRING); |
967 | 327 } |
1 | 328 |
968 | 329 %{ |
1 | 330 // For this and the next two rules, we're looking at ']', and we |
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331 // need to know if the next token is '=' or '=='. |
1 | 332 // |
333 // It would have been so much easier if the delimiters were simply | |
334 // different for the expression on the left hand side of the equals | |
335 // operator. | |
971 | 336 // |
337 // It's also a pain in the ass to decide whether to insert a comma | |
338 // after seeing a ']' character... | |
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339 |
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340 // FIXME -- we need to handle block comments here. |
968 | 341 %} |
342 | |
4208 | 343 <MATRIX_START>{SNLCMT}*\]{S}* { |
8535 | 344 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*\\]{S}*"); |
345 | |
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346 curr_lexer->scan_for_comments (yytext); |
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347 curr_lexer->fixup_column_count (yytext); |
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348 |
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349 curr_lexer->looking_at_object_index.pop_front (); |
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350 |
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351 curr_lexer->looking_for_object_index = true; |
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352 curr_lexer->at_beginning_of_statement = false; |
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353 |
1001 | 354 int c = yytext[yyleng-1]; |
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355 bool cont_is_spc = (curr_lexer->eat_continuation () != lexical_feedback::NO_WHITESPACE); |
4608 | 356 bool spc_gobbled = (cont_is_spc || c == ' ' || c == '\t'); |
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357 int tok_to_return = curr_lexer->handle_close_bracket (spc_gobbled, ']'); |
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358 |
5345 | 359 if (spc_gobbled) |
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360 curr_lexer->xunput (' ', yytext); |
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361 |
5345 | 362 COUNT_TOK_AND_RETURN (tok_to_return); |
4608 | 363 } |
364 | |
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365 %{ |
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366 // FIXME -- we need to handle block comments here. |
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367 %} |
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368 |
4608 | 369 <MATRIX_START>{SNLCMT}*\}{S}* { |
8535 | 370 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*\\}{S}*"); |
371 | |
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372 curr_lexer->scan_for_comments (yytext); |
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373 curr_lexer->fixup_column_count (yytext); |
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374 |
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375 curr_lexer->looking_at_object_index.pop_front (); |
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376 |
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377 curr_lexer->looking_for_object_index = true; |
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378 curr_lexer->at_beginning_of_statement = false; |
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379 |
4608 | 380 int c = yytext[yyleng-1]; |
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381 bool cont_is_spc = (curr_lexer->eat_continuation () != lexical_feedback::NO_WHITESPACE); |
4608 | 382 bool spc_gobbled = (cont_is_spc || c == ' ' || c == '\t'); |
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383 int tok_to_return = curr_lexer->handle_close_bracket (spc_gobbled, '}'); |
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384 |
5345 | 385 if (spc_gobbled) |
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386 curr_lexer->xunput (' ', yytext); |
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387 |
5345 | 388 COUNT_TOK_AND_RETURN (tok_to_return); |
967 | 389 } |
1 | 390 |
968 | 391 %{ |
1088 | 392 // Commas are element separators in matrix constants. If we don't |
393 // check for continuations here we can end up inserting too many | |
394 // commas. | |
968 | 395 %} |
396 | |
4208 | 397 <MATRIX_START>{S}*\,{S}* { |
8535 | 398 LEXER_DEBUG ("<MATRIX_START>{S}*\\,{S}*"); |
399 | |
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400 curr_lexer->current_input_column += yyleng; |
3388 | 401 |
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402 int tmp = curr_lexer->eat_continuation (); |
3388 | 403 |
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404 curr_lexer->quote_is_transpose = false; |
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405 curr_lexer->convert_spaces_to_comma = true; |
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406 curr_lexer->looking_for_object_index = false; |
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407 curr_lexer->at_beginning_of_statement = false; |
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408 |
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409 if (! curr_lexer->looking_at_object_index.front ()) |
3388 | 410 { |
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411 if ((tmp & lexical_feedback::NEWLINE) == lexical_feedback::NEWLINE) |
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412 { |
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413 curr_lexer->maybe_warn_separator_insert (';'); |
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414 |
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415 curr_lexer->xunput (';', yytext); |
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416 } |
3388 | 417 } |
418 | |
4910 | 419 COUNT_TOK_AND_RETURN (','); |
967 | 420 } |
1 | 421 |
968 | 422 %{ |
423 // In some cases, spaces in matrix constants can turn into commas. | |
424 // If commas are required, spaces are not important in matrix | |
1088 | 425 // constants so we just eat them. If we don't check for continuations |
426 // here we can end up inserting too many commas. | |
968 | 427 %} |
430 | 428 |
4208 | 429 <MATRIX_START>{S}+ { |
8535 | 430 LEXER_DEBUG ("<MATRIX_START>{S}+"); |
431 | |
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432 curr_lexer->current_input_column += yyleng; |
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433 |
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434 curr_lexer->at_beginning_of_statement = false; |
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435 |
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436 int tmp = curr_lexer->eat_continuation (); |
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437 |
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438 if (! curr_lexer->looking_at_object_index.front ()) |
967 | 439 { |
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440 bool bin_op = curr_lexer->next_token_is_bin_op (true); |
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441 bool postfix_un_op = curr_lexer->next_token_is_postfix_unary_op (true); |
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442 bool sep_op = curr_lexer->next_token_is_sep_op (); |
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443 |
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444 if (! (postfix_un_op || bin_op || sep_op) |
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445 && curr_lexer->nesting_level.is_bracket_or_brace () |
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446 && curr_lexer->convert_spaces_to_comma) |
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447 { |
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448 if ((tmp & lexical_feedback::NEWLINE) == lexical_feedback::NEWLINE) |
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449 { |
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450 curr_lexer->maybe_warn_separator_insert (';'); |
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451 |
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452 curr_lexer->xunput (';', yytext); |
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453 } |
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454 |
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455 curr_lexer->quote_is_transpose = false; |
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456 curr_lexer->convert_spaces_to_comma = true; |
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457 curr_lexer->looking_for_object_index = false; |
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458 |
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459 curr_lexer->maybe_warn_separator_insert (','); |
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460 |
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461 COUNT_TOK_AND_RETURN (','); |
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462 } |
967 | 463 } |
464 } | |
430 | 465 |
968 | 466 %{ |
1088 | 467 // Semicolons are handled as row seprators in matrix constants. If we |
468 // don't eat whitespace here we can end up inserting too many | |
469 // semicolons. | |
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470 |
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471 // FIXME -- we need to handle block comments here. |
968 | 472 %} |
473 | |
4208 | 474 <MATRIX_START>{SNLCMT}*;{SNLCMT}* { |
8535 | 475 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*;{SNLCMT}*"); |
476 | |
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477 curr_lexer->scan_for_comments (yytext); |
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478 curr_lexer->fixup_column_count (yytext); |
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479 curr_lexer->eat_whitespace (); |
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480 |
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481 curr_lexer->quote_is_transpose = false; |
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482 curr_lexer->convert_spaces_to_comma = true; |
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483 curr_lexer->looking_for_object_index = false; |
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484 curr_lexer->at_beginning_of_statement = false; |
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485 |
4910 | 486 COUNT_TOK_AND_RETURN (';'); |
967 | 487 } |
488 | |
968 | 489 %{ |
1088 | 490 // In some cases, new lines can also become row separators. If we |
491 // don't eat whitespace here we can end up inserting too many | |
492 // semicolons. | |
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493 |
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494 // FIXME -- we need to handle block comments here. |
985 | 495 %} |
496 | |
4208 | 497 <MATRIX_START>{S}*{COMMENT}{SNLCMT}* | |
498 <MATRIX_START>{S}*{NL}{SNLCMT}* { | |
8535 | 499 LEXER_DEBUG ("<MATRIX_START>{S}*{COMMENT}{SNLCMT}*|<MATRIX_START>{S}*{NL}{SNLCMT}*"); |
500 | |
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501 curr_lexer->scan_for_comments (yytext); |
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502 curr_lexer->fixup_column_count (yytext); |
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503 curr_lexer->eat_whitespace (); |
3388 | 504 |
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505 curr_lexer->quote_is_transpose = false; |
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506 curr_lexer->convert_spaces_to_comma = true; |
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507 curr_lexer->at_beginning_of_statement = false; |
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508 |
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509 if (curr_lexer->nesting_level.none ()) |
4476 | 510 return LEXICAL_ERROR; |
985 | 511 |
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512 if (! curr_lexer->looking_at_object_index.front () |
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513 && curr_lexer->nesting_level.is_bracket_or_brace ()) |
3388 | 514 { |
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515 curr_lexer->maybe_warn_separator_insert (';'); |
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516 |
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517 COUNT_TOK_AND_RETURN (';'); |
985 | 518 } |
519 } | |
520 | |
967 | 521 \[{S}* { |
8535 | 522 LEXER_DEBUG ("\\[{S}*"); |
523 | |
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524 curr_lexer->nesting_level.bracket (); |
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525 |
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526 curr_lexer->looking_at_object_index.push_front (false); |
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527 |
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528 curr_lexer->current_input_column += yyleng; |
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529 curr_lexer->quote_is_transpose = false; |
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530 curr_lexer->convert_spaces_to_comma = true; |
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531 curr_lexer->looking_for_object_index = false; |
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532 curr_lexer->at_beginning_of_statement = false; |
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533 |
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534 if (curr_lexer->defining_func |
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535 && ! curr_lexer->parsed_function_name.top ()) |
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536 curr_lexer->looking_at_return_list = true; |
5615 | 537 else |
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538 curr_lexer->looking_at_matrix_or_assign_lhs = true; |
5615 | 539 |
975 | 540 promptflag--; |
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541 curr_lexer->eat_whitespace (); |
975 | 542 |
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543 curr_lexer->bracketflag++; |
5102 | 544 BEGIN (MATRIX_START); |
545 COUNT_TOK_AND_RETURN ('['); | |
967 | 546 } |
1 | 547 |
968 | 548 \] { |
8535 | 549 LEXER_DEBUG ("\\]"); |
550 | |
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551 curr_lexer->nesting_level.remove (); |
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552 |
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553 curr_lexer->looking_at_object_index.pop_front (); |
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554 |
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555 curr_lexer->looking_for_object_index = true; |
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556 curr_lexer->at_beginning_of_statement = false; |
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557 |
5102 | 558 TOK_RETURN (']'); |
968 | 559 } |
560 | |
561 %{ | |
562 // Imaginary numbers. | |
563 %} | |
564 | |
565 {NUMBER}{Im} { | |
8535 | 566 LEXER_DEBUG ("{NUMBER}{Im}"); |
567 | |
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568 curr_lexer->handle_number (); |
4910 | 569 COUNT_TOK_AND_RETURN (IMAG_NUM); |
968 | 570 } |
571 | |
572 %{ | |
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573 // Real numbers. Don't grab the '.' part of a dot operator as part of |
968 | 574 // the constant. |
575 %} | |
576 | |
8535 | 577 {D}+/\.[\*/\\^\'] | |
968 | 578 {NUMBER} { |
8535 | 579 LEXER_DEBUG ("{D}+/\\.[\\*/\\^\\']|{NUMBER}"); |
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580 curr_lexer->handle_number (); |
4910 | 581 COUNT_TOK_AND_RETURN (NUM); |
968 | 582 } |
583 | |
584 %{ | |
585 // Eat whitespace. Whitespace inside matrix constants is handled by | |
4208 | 586 // the <MATRIX_START> start state code above. |
968 | 587 %} |
588 | |
967 | 589 {S}* { |
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590 curr_lexer->current_input_column += yyleng; |
967 | 591 } |
592 | |
968 | 593 %{ |
594 // Continuation lines. Allow comments after continuations. | |
595 %} | |
596 | |
967 | 597 {CONT}{S}*{NL} | |
598 {CONT}{S}*{COMMENT} { | |
8535 | 599 LEXER_DEBUG ("{CONT}{S}*{NL}|{CONT}{S}*{COMMENT}"); |
600 | |
4037 | 601 if (yytext[0] == '\\') |
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602 curr_lexer->gripe_matlab_incompatible_continuation (); |
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603 curr_lexer->scan_for_comments (yytext); |
967 | 604 promptflag--; |
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605 curr_lexer->input_line_number++; |
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606 curr_lexer->current_input_column = 1; |
967 | 607 } |
1 | 608 |
968 | 609 %{ |
610 // End of file. | |
611 %} | |
612 | |
967 | 613 <<EOF>> { |
8535 | 614 LEXER_DEBUG ("<<EOF>>"); |
615 | |
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616 if (curr_lexer->block_comment_nesting_level != 0) |
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617 { |
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618 warning ("block comment open at end of input"); |
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619 |
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620 if ((reading_fcn_file || reading_script_file || reading_classdef_file) |
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621 && ! curr_fcn_file_name.empty ()) |
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622 warning ("near line %d of file '%s.m'", |
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623 curr_lexer->input_line_number, curr_fcn_file_name.c_str ()); |
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624 } |
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625 |
967 | 626 TOK_RETURN (END_OF_INPUT); |
627 } | |
1 | 628 |
968 | 629 %{ |
970 | 630 // Identifiers. Truncate the token at the first space or tab but |
631 // don't write directly on yytext. | |
968 | 632 %} |
633 | |
967 | 634 {IDENT}{S}* { |
8535 | 635 LEXER_DEBUG ("{IDENT}{S}*"); |
636 | |
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637 int id_tok = curr_lexer->handle_identifier (); |
4238 | 638 |
639 if (id_tok >= 0) | |
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640 COUNT_TOK_AND_RETURN (id_tok); |
967 | 641 } |
1 | 642 |
968 | 643 %{ |
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644 // Superclass method identifiers. |
9476 | 645 %} |
646 | |
647 {IDENT}@{IDENT}{S}* | | |
648 {IDENT}@{IDENT}.{IDENT}{S}* { | |
649 LEXER_DEBUG ("{IDENT}@{IDENT}{S}*|{IDENT}@{IDENT}.{IDENT}{S}*"); | |
650 | |
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651 int id_tok = curr_lexer->handle_superclass_identifier (); |
9476 | 652 |
653 if (id_tok >= 0) | |
654 { | |
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655 curr_lexer->looking_for_object_index = true; |
9476 | 656 |
657 COUNT_TOK_AND_RETURN (SUPERCLASSREF); | |
658 } | |
659 } | |
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660 |
9476 | 661 %{ |
662 // Metaclass query | |
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663 %} |
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664 |
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665 \?{IDENT}{S}* | |
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666 \?{IDENT}\.{IDENT}{S}* { |
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667 LEXER_DEBUG ("\\?{IDENT}{S}*|\\?{IDENT}\\.{IDENT}{S}*"); |
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668 |
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669 int id_tok = curr_lexer->handle_meta_identifier (); |
9476 | 670 |
671 if (id_tok >= 0) | |
672 { | |
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673 curr_lexer->looking_for_object_index = true; |
9476 | 674 |
675 COUNT_TOK_AND_RETURN (METAQUERY); | |
676 } | |
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677 } |
9476 | 678 |
679 %{ | |
680 // Function handles and superclass references | |
4342 | 681 %} |
682 | |
4930 | 683 "@" { |
8535 | 684 LEXER_DEBUG ("@"); |
685 | |
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686 curr_lexer->current_input_column++; |
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687 |
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688 curr_lexer->quote_is_transpose = false; |
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689 curr_lexer->convert_spaces_to_comma = false; |
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690 curr_lexer->looking_at_function_handle++; |
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691 curr_lexer->looking_for_object_index = false; |
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692 curr_lexer->at_beginning_of_statement = false; |
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693 |
4930 | 694 COUNT_TOK_AND_RETURN ('@'); |
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695 |
4342 | 696 } |
697 | |
698 %{ | |
968 | 699 // A new line character. New line characters inside matrix constants |
4208 | 700 // are handled by the <MATRIX_START> start state code above. If closest |
985 | 701 // nesting is inside parentheses, don't return a row separator. |
968 | 702 %} |
703 | |
967 | 704 {NL} { |
8535 | 705 LEXER_DEBUG ("{NL}"); |
706 | |
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707 curr_lexer->input_line_number++; |
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708 curr_lexer->current_input_column = 1; |
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709 |
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710 curr_lexer->quote_is_transpose = false; |
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711 curr_lexer->convert_spaces_to_comma = true; |
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712 |
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713 if (curr_lexer->nesting_level.none ()) |
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714 { |
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715 curr_lexer->at_beginning_of_statement = true; |
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716 COUNT_TOK_AND_RETURN ('\n'); |
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717 } |
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718 else if (curr_lexer->nesting_level.is_paren ()) |
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719 { |
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720 curr_lexer->at_beginning_of_statement = false; |
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721 curr_lexer->gripe_matlab_incompatible ("bare newline inside parentheses"); |
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722 } |
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723 else if (curr_lexer->nesting_level.is_bracket_or_brace ()) |
985 | 724 return LEXICAL_ERROR; |
967 | 725 } |
1 | 726 |
968 | 727 %{ |
728 // Single quote can either be the beginning of a string or a transpose | |
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729 // operator. |
968 | 730 %} |
731 | |
967 | 732 "'" { |
8535 | 733 LEXER_DEBUG ("'"); |
734 | |
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735 curr_lexer->current_input_column++; |
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736 curr_lexer->convert_spaces_to_comma = true; |
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737 |
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738 if (curr_lexer->quote_is_transpose) |
967 | 739 { |
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740 curr_lexer->do_comma_insert_check (); |
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741 COUNT_TOK_AND_RETURN (QUOTE); |
967 | 742 } |
743 else | |
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744 { |
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745 int tok = curr_lexer->handle_string ('\''); |
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746 COUNT_TOK_AND_RETURN (tok); |
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747 } |
967 | 748 } |
1 | 749 |
968 | 750 %{ |
971 | 751 // Double quotes always begin strings. |
752 %} | |
753 | |
973 | 754 \" { |
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755 LEXER_DEBUG ("\""); |
8535 | 756 |
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757 curr_lexer->current_input_column++; |
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758 int tok = curr_lexer->handle_string ('"'); |
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759 |
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760 COUNT_TOK_AND_RETURN (tok); |
973 | 761 } |
971 | 762 |
763 %{ | |
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764 // Gobble comments. |
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765 %} |
968 | 766 |
967 | 767 {CCHAR} { |
8535 | 768 LEXER_DEBUG ("{CCHAR}"); |
769 | |
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770 curr_lexer->looking_for_object_index = false; |
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771 |
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772 curr_lexer->xunput (yytext[0], yytext); |
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773 |
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774 bool eof = false; |
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775 int tok = curr_lexer->process_comment (false, eof); |
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776 |
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777 if (eof) |
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778 TOK_RETURN (END_OF_INPUT); |
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779 else if (tok > 0) |
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780 COUNT_TOK_AND_RETURN (tok); |
967 | 781 } |
440 | 782 |
968 | 783 %{ |
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784 // Block comments. |
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785 %} |
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786 |
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787 ^{S}*{CCHAR}\{{S}*{NL} { |
8535 | 788 LEXER_DEBUG ("^{S}*{CCHAR}\\{{S}*{NL}"); |
789 | |
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790 curr_lexer->looking_for_object_index = false; |
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791 |
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792 curr_lexer->input_line_number++; |
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793 curr_lexer->current_input_column = 1; |
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794 curr_lexer->block_comment_nesting_level++; |
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795 promptflag--; |
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796 |
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797 bool eof = false; |
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798 curr_lexer->process_comment (true, eof); |
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799 } |
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800 |
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801 %{ |
968 | 802 // Other operators. |
803 %} | |
804 | |
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805 ":" { LEXER_DEBUG (":"); BIN_OP_RETURN (':', false, false); } |
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806 |
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807 ".+" { LEXER_DEBUG (".+"); XBIN_OP_RETURN (EPLUS, false, false); } |
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808 ".-" { LEXER_DEBUG (".-"); XBIN_OP_RETURN (EMINUS, false, false); } |
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809 ".*" { LEXER_DEBUG (".*"); BIN_OP_RETURN (EMUL, false, false); } |
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810 "./" { LEXER_DEBUG ("./"); BIN_OP_RETURN (EDIV, false, false); } |
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811 ".\\" { LEXER_DEBUG (".\\"); BIN_OP_RETURN (ELEFTDIV, false, false); } |
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812 ".^" { LEXER_DEBUG (".^"); BIN_OP_RETURN (EPOW, false, false); } |
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813 ".**" { LEXER_DEBUG (".**"); XBIN_OP_RETURN (EPOW, false, false); } |
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814 ".'" { LEXER_DEBUG (".'"); curr_lexer->do_comma_insert_check (); BIN_OP_RETURN (TRANSPOSE, true, false); } |
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815 "++" { LEXER_DEBUG ("++"); curr_lexer->do_comma_insert_check (); XBIN_OP_RETURN_INTERNAL (PLUS_PLUS, true, false, true); } |
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816 "--" { LEXER_DEBUG ("--"); curr_lexer->do_comma_insert_check (); XBIN_OP_RETURN_INTERNAL (MINUS_MINUS, true, false, true); } |
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817 "<=" { LEXER_DEBUG ("<="); BIN_OP_RETURN (EXPR_LE, false, false); } |
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818 "==" { LEXER_DEBUG ("=="); BIN_OP_RETURN (EXPR_EQ, false, false); } |
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819 "~=" { LEXER_DEBUG ("~="); BIN_OP_RETURN (EXPR_NE, false, false); } |
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820 "!=" { LEXER_DEBUG ("!="); XBIN_OP_RETURN (EXPR_NE, false, false); } |
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821 ">=" { LEXER_DEBUG (">="); BIN_OP_RETURN (EXPR_GE, false, false); } |
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822 "&" { LEXER_DEBUG ("&"); BIN_OP_RETURN (EXPR_AND, false, false); } |
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823 "|" { LEXER_DEBUG ("|"); BIN_OP_RETURN (EXPR_OR, false, false); } |
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824 "<" { LEXER_DEBUG ("<"); BIN_OP_RETURN (EXPR_LT, false, false); } |
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825 ">" { LEXER_DEBUG (">"); BIN_OP_RETURN (EXPR_GT, 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 ('*', false, false); } |
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829 "/" { LEXER_DEBUG ("/"); BIN_OP_RETURN ('/', false, false); } |
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830 "\\" { LEXER_DEBUG ("\\"); BIN_OP_RETURN (LEFTDIV, false, false); } |
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831 ";" { LEXER_DEBUG (";"); BIN_OP_RETURN (';', true, true); } |
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832 "," { LEXER_DEBUG (","); BIN_OP_RETURN (',', true, ! curr_lexer->looking_at_object_index.front ()); } |
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833 "^" { LEXER_DEBUG ("^"); BIN_OP_RETURN (POW, false, false); } |
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834 "**" { LEXER_DEBUG ("**"); XBIN_OP_RETURN (POW, false, false); } |
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835 "=" { LEXER_DEBUG ("="); BIN_OP_RETURN ('=', true, false); } |
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836 "&&" { LEXER_DEBUG ("&&"); BIN_OP_RETURN (EXPR_AND_AND, false, false); } |
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837 "||" { LEXER_DEBUG ("||"); BIN_OP_RETURN (EXPR_OR_OR, false, false); } |
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838 "<<" { LEXER_DEBUG ("<<"); XBIN_OP_RETURN (LSHIFT, false, false); } |
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839 ">>" { LEXER_DEBUG (">>"); XBIN_OP_RETURN (RSHIFT, false, false); } |
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840 |
967 | 841 {NOT} { |
8535 | 842 LEXER_DEBUG ("{NOT}"); |
843 | |
4037 | 844 if (yytext[0] == '~') |
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845 BIN_OP_RETURN (EXPR_NOT, false, false); |
4037 | 846 else |
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847 XBIN_OP_RETURN (EXPR_NOT, false, false); |
967 | 848 } |
1 | 849 |
967 | 850 "(" { |
8535 | 851 LEXER_DEBUG ("("); |
852 | |
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853 // If we are looking for an object index, then push TRUE for |
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854 // looking_at_object_index. Otherwise, just push whatever state |
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855 // is current (so that we can pop it off the stack when we find |
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856 // the matching close paren). |
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857 |
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858 curr_lexer->looking_at_object_index.push_front |
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859 (curr_lexer->looking_for_object_index); |
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860 |
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861 curr_lexer->looking_at_indirect_ref = false; |
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862 curr_lexer->looking_for_object_index = false; |
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863 curr_lexer->at_beginning_of_statement = false; |
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864 |
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865 curr_lexer->nesting_level.paren (); |
985 | 866 promptflag--; |
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867 |
967 | 868 TOK_RETURN ('('); |
869 } | |
870 | |
871 ")" { | |
8535 | 872 LEXER_DEBUG (")"); |
873 | |
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874 curr_lexer->nesting_level.remove (); |
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875 curr_lexer->current_input_column++; |
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876 |
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877 curr_lexer->looking_at_object_index.pop_front (); |
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878 |
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879 curr_lexer->quote_is_transpose = true; |
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880 curr_lexer->convert_spaces_to_comma |
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881 = (curr_lexer->nesting_level.is_bracket_or_brace () |
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882 && ! curr_lexer->looking_at_anon_fcn_args); |
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883 curr_lexer->looking_for_object_index = true; |
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884 curr_lexer->at_beginning_of_statement = false; |
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885 |
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886 if (curr_lexer->looking_at_anon_fcn_args) |
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887 curr_lexer->looking_at_anon_fcn_args = false; |
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888 |
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889 curr_lexer->do_comma_insert_check (); |
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890 |
4910 | 891 COUNT_TOK_AND_RETURN (')'); |
967 | 892 } |
893 | |
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894 "." { |
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895 LEXER_DEBUG ("."); |
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896 |
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897 curr_lexer->looking_for_object_index = false; |
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898 curr_lexer->at_beginning_of_statement = false; |
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899 |
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900 TOK_RETURN ('.'); |
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901 } |
8535 | 902 |
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903 "+=" { LEXER_DEBUG ("+="); XBIN_OP_RETURN (ADD_EQ, false, false); } |
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904 "-=" { LEXER_DEBUG ("-="); XBIN_OP_RETURN (SUB_EQ, false, false); } |
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905 "*=" { LEXER_DEBUG ("*="); XBIN_OP_RETURN (MUL_EQ, false, false); } |
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906 "/=" { LEXER_DEBUG ("/="); XBIN_OP_RETURN (DIV_EQ, false, false); } |
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907 "\\=" { LEXER_DEBUG ("\\="); XBIN_OP_RETURN (LEFTDIV_EQ, false, false); } |
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908 ".+=" { LEXER_DEBUG (".+="); XBIN_OP_RETURN (ADD_EQ, false, false); } |
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909 ".-=" { LEXER_DEBUG (".-="); XBIN_OP_RETURN (SUB_EQ, false, false); } |
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910 ".*=" { LEXER_DEBUG (".*="); XBIN_OP_RETURN (EMUL_EQ, false, false); } |
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911 "./=" { LEXER_DEBUG ("./="); XBIN_OP_RETURN (EDIV_EQ, false, false); } |
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912 ".\\=" { LEXER_DEBUG (".\\="); XBIN_OP_RETURN (ELEFTDIV_EQ, false, false); } |
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913 {POW}= { LEXER_DEBUG ("{POW}="); XBIN_OP_RETURN (POW_EQ, false, false); } |
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914 {EPOW}= { LEXER_DEBUG ("{EPOW}="); XBIN_OP_RETURN (EPOW_EQ, false, false); } |
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915 "&=" { LEXER_DEBUG ("&="); XBIN_OP_RETURN (AND_EQ, false, false); } |
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916 "|=" { LEXER_DEBUG ("|="); XBIN_OP_RETURN (OR_EQ, false, false); } |
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917 "<<=" { LEXER_DEBUG ("<<="); XBIN_OP_RETURN (LSHIFT_EQ, false, false); } |
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918 ">>=" { LEXER_DEBUG (">>="); XBIN_OP_RETURN (RSHIFT_EQ, false, false); } |
2877 | 919 |
4608 | 920 \{{S}* { |
8535 | 921 LEXER_DEBUG ("\\{{S}*"); |
922 | |
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923 curr_lexer->nesting_level.brace (); |
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924 |
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925 curr_lexer->looking_at_object_index.push_front |
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926 (curr_lexer->looking_for_object_index); |
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927 |
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928 curr_lexer->current_input_column += yyleng; |
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929 curr_lexer->quote_is_transpose = false; |
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930 curr_lexer->convert_spaces_to_comma = true; |
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931 curr_lexer->looking_for_object_index = false; |
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932 curr_lexer->at_beginning_of_statement = false; |
4608 | 933 |
3351 | 934 promptflag--; |
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935 curr_lexer->eat_whitespace (); |
4608 | 936 |
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937 curr_lexer->braceflag++; |
4608 | 938 BEGIN (MATRIX_START); |
4910 | 939 COUNT_TOK_AND_RETURN ('{'); |
3351 | 940 } |
941 | |
942 "}" { | |
8535 | 943 LEXER_DEBUG ("}"); |
944 | |
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945 curr_lexer->looking_at_object_index.pop_front (); |
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946 |
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947 curr_lexer->looking_for_object_index = true; |
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948 curr_lexer->at_beginning_of_statement = false; |
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949 |
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950 curr_lexer->nesting_level.remove (); |
3351 | 951 |
4608 | 952 TOK_RETURN ('}'); |
3351 | 953 } |
954 | |
968 | 955 %{ |
2066 | 956 // Unrecognized input is a lexical error. |
968 | 957 %} |
1 | 958 |
2042 | 959 . { |
8535 | 960 LEXER_DEBUG ("."); |
961 | |
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962 curr_lexer->xunput (yytext[0], yytext); |
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diff
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|
963 |
7c5e5e97a3bc
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
964 int c = curr_lexer->text_yyinput (); |
4248 | 965 |
966 if (c != EOF) | |
4240 | 967 { |
16110
7302f8a4df83
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diff
changeset
|
968 curr_lexer->current_input_column++; |
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|
969 |
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
|
970 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
|
971 undo_string_escape (static_cast<char> (c)), c, |
16110
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use pointer for global lexical_feedback structure
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diff
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|
972 curr_lexer->input_line_number, curr_lexer->current_input_column); |
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|
973 |
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|
974 return LEXICAL_ERROR; |
4240 | 975 } |
976 else | |
977 TOK_RETURN (END_OF_INPUT); | |
2066 | 978 } |
1 | 979 |
980 %% | |
981 | |
767 | 982 // Fix things up for errors or interrupts. The parser is never called |
983 // recursively, so it is always safe to reinitialize its state before | |
984 // doing any parsing. | |
985 | |
1 | 986 void |
987 reset_parser (void) | |
988 { | |
1826 | 989 // Start off on the right foot. |
4323 | 990 BEGIN (INITIAL); |
4318 | 991 |
14329
8d1ae996c122
also save and restore symbol table context in parser (bug #35448)
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parents:
14294
diff
changeset
|
992 parser_symtab_context.clear (); |
287 | 993 |
1826 | 994 // We do want a prompt by default. |
1 | 995 promptflag = 1; |
287 | 996 |
1826 | 997 // Only ask for input from stdin if we are expecting interactive |
998 // input. | |
14074
f90c3facfac3
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diff
changeset
|
999 |
f90c3facfac3
don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1000 if (! quitting_gracefully |
f90c3facfac3
don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1001 && (interactive || forced_interactive) |
3880 | 1002 && ! (reading_fcn_file |
14074
f90c3facfac3
don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1003 || reading_classdef_file |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1004 || reading_script_file |
57a59eae83cc
untabify src C++ source files
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|
1005 || get_input_from_eval_string |
57a59eae83cc
untabify src C++ source files
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|
1006 || input_from_startup_file)) |
287 | 1007 yyrestart (stdin); |
991 | 1008 |
1826 | 1009 // Clear the buffer for help text. |
4426 | 1010 while (! help_buf.empty ()) |
1011 help_buf.pop (); | |
1 | 1012 } |
1013 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1014 static void |
8535 | 1015 display_character (char c) |
1016 { | |
1017 if (isgraph (c)) | |
1018 std::cerr << c; | |
1019 else | |
1020 switch (c) | |
1021 { | |
1022 case 0: | |
10315
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untabify src C++ source files
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changeset
|
1023 std::cerr << "NUL"; |
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untabify src C++ source files
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changeset
|
1024 break; |
8535 | 1025 |
1026 case 1: | |
10315
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
1027 std::cerr << "SOH"; |
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untabify src C++ source files
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diff
changeset
|
1028 break; |
8535 | 1029 |
1030 case 2: | |
10315
57a59eae83cc
untabify src C++ source files
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changeset
|
1031 std::cerr << "STX"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1032 break; |
8535 | 1033 |
1034 case 3: | |
10315
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untabify src C++ source files
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diff
changeset
|
1035 std::cerr << "ETX"; |
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untabify src C++ source files
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diff
changeset
|
1036 break; |
8535 | 1037 |
1038 case 4: | |
10315
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untabify src C++ source files
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changeset
|
1039 std::cerr << "EOT"; |
57a59eae83cc
untabify src C++ source files
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changeset
|
1040 break; |
8535 | 1041 |
1042 case 5: | |
10315
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untabify src C++ source files
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diff
changeset
|
1043 std::cerr << "ENQ"; |
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changeset
|
1044 break; |
8535 | 1045 |
1046 case 6: | |
10315
57a59eae83cc
untabify src C++ source files
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changeset
|
1047 std::cerr << "ACK"; |
57a59eae83cc
untabify src C++ source files
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changeset
|
1048 break; |
8535 | 1049 |
1050 case 7: | |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1051 std::cerr << "\\a"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1052 break; |
8535 | 1053 |
1054 case 8: | |
10315
57a59eae83cc
untabify src C++ source files
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changeset
|
1055 std::cerr << "\\b"; |
57a59eae83cc
untabify src C++ source files
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changeset
|
1056 break; |
8535 | 1057 |
1058 case 9: | |
10315
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changeset
|
1059 std::cerr << "\\t"; |
57a59eae83cc
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changeset
|
1060 break; |
8535 | 1061 |
1062 case 10: | |
10315
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untabify src C++ source files
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|
1063 std::cerr << "\\n"; |
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changeset
|
1064 break; |
8535 | 1065 |
1066 case 11: | |
10315
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untabify src C++ source files
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changeset
|
1067 std::cerr << "\\v"; |
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changeset
|
1068 break; |
8535 | 1069 |
1070 case 12: | |
10315
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untabify src C++ source files
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changeset
|
1071 std::cerr << "\\f"; |
57a59eae83cc
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changeset
|
1072 break; |
8535 | 1073 |
1074 case 13: | |
10315
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untabify src C++ source files
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changeset
|
1075 std::cerr << "\\r"; |
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changeset
|
1076 break; |
8535 | 1077 |
1078 case 14: | |
10315
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changeset
|
1079 std::cerr << "SO"; |
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changeset
|
1080 break; |
8535 | 1081 |
1082 case 15: | |
10315
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changeset
|
1083 std::cerr << "SI"; |
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changeset
|
1084 break; |
8535 | 1085 |
1086 case 16: | |
10315
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changeset
|
1087 std::cerr << "DLE"; |
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changeset
|
1088 break; |
8535 | 1089 |
1090 case 17: | |
10315
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changeset
|
1091 std::cerr << "DC1"; |
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changeset
|
1092 break; |
8535 | 1093 |
1094 case 18: | |
10315
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untabify src C++ source files
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changeset
|
1095 std::cerr << "DC2"; |
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changeset
|
1096 break; |
8535 | 1097 |
1098 case 19: | |
10315
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changeset
|
1099 std::cerr << "DC3"; |
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changeset
|
1100 break; |
8535 | 1101 |
1102 case 20: | |
10315
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|
1103 std::cerr << "DC4"; |
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changeset
|
1104 break; |
8535 | 1105 |
1106 case 21: | |
10315
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changeset
|
1107 std::cerr << "NAK"; |
57a59eae83cc
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changeset
|
1108 break; |
8535 | 1109 |
1110 case 22: | |
10315
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changeset
|
1111 std::cerr << "SYN"; |
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changeset
|
1112 break; |
8535 | 1113 |
1114 case 23: | |
10315
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untabify src C++ source files
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changeset
|
1115 std::cerr << "ETB"; |
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changeset
|
1116 break; |
8535 | 1117 |
1118 case 24: | |
10315
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untabify src C++ source files
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changeset
|
1119 std::cerr << "CAN"; |
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changeset
|
1120 break; |
8535 | 1121 |
1122 case 25: | |
10315
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untabify src C++ source files
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changeset
|
1123 std::cerr << "EM"; |
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changeset
|
1124 break; |
8535 | 1125 |
1126 case 26: | |
10315
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changeset
|
1127 std::cerr << "SUB"; |
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changeset
|
1128 break; |
8535 | 1129 |
1130 case 27: | |
10315
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untabify src C++ source files
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changeset
|
1131 std::cerr << "ESC"; |
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changeset
|
1132 break; |
8535 | 1133 |
1134 case 28: | |
10315
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untabify src C++ source files
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changeset
|
1135 std::cerr << "FS"; |
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changeset
|
1136 break; |
8535 | 1137 |
1138 case 29: | |
10315
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untabify src C++ source files
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changeset
|
1139 std::cerr << "GS"; |
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changeset
|
1140 break; |
8535 | 1141 |
1142 case 30: | |
10315
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changeset
|
1143 std::cerr << "RS"; |
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changeset
|
1144 break; |
8535 | 1145 |
1146 case 31: | |
10315
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|
1147 std::cerr << "US"; |
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changeset
|
1148 break; |
8535 | 1149 |
1150 case 32: | |
10315
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|
1151 std::cerr << "SPACE"; |
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changeset
|
1152 break; |
8535 | 1153 |
1154 case 127: | |
10315
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|
1155 std::cerr << "DEL"; |
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|
1156 break; |
8535 | 1157 } |
1158 } | |
8745
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1159 |
767 | 1160 // Include these so that we don't have to link to libfl.a. |
246 | 1161 |
3332 | 1162 int |
1 | 1163 yywrap (void) |
1164 { | |
287 | 1165 return 1; |
1 | 1166 } |
1167 | |
767 | 1168 // Tell us all what the current buffer is. |
1169 | |
1 | 1170 YY_BUFFER_STATE |
1171 current_buffer (void) | |
1172 { | |
1173 return YY_CURRENT_BUFFER; | |
1174 } | |
1175 | |
767 | 1176 // Create a new buffer. |
1177 | |
1 | 1178 YY_BUFFER_STATE |
1179 create_buffer (FILE *f) | |
1180 { | |
1181 return yy_create_buffer (f, YY_BUF_SIZE); | |
1182 } | |
1183 | |
767 | 1184 // Start reading a new buffer. |
1185 | |
1 | 1186 void |
1187 switch_to_buffer (YY_BUFFER_STATE buf) | |
1188 { | |
1189 yy_switch_to_buffer (buf); | |
1190 } | |
1191 | |
767 | 1192 // Delete a buffer. |
1193 | |
1 | 1194 void |
1195 delete_buffer (YY_BUFFER_STATE buf) | |
1196 { | |
1197 yy_delete_buffer (buf); | |
14510
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avoid memory error in 'octave --eval 0' (bug #36038)
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changeset
|
1198 |
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changeset
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1199 // Prevent invalid yyin from being used by yyrestart. |
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avoid memory error in 'octave --eval 0' (bug #36038)
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1200 if (! current_buffer ()) |
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avoid memory error in 'octave --eval 0' (bug #36038)
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changeset
|
1201 yyin = 0; |
1 | 1202 } |
1203 | |
13973
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|
1204 // Delete all buffers from the stack. |
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1205 void |
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|
1206 clear_all_buffers (void) |
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1207 { |
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1208 while (current_buffer ()) |
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1209 octave_pop_buffer_state (); |
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1210 } |
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1211 |
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1212 void |
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1213 cleanup_parser (void) |
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|
1214 { |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
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|
1215 reset_parser (); |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1216 |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
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|
1217 clear_all_buffers (); |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
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|
1218 } |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
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|
1219 |
767 | 1220 // Restore a buffer (for unwind-prot). |
1221 | |
1 | 1222 void |
1223 restore_input_buffer (void *buf) | |
1224 { | |
2861 | 1225 switch_to_buffer (static_cast<YY_BUFFER_STATE> (buf)); |
1 | 1226 } |
1227 | |
767 | 1228 // Delete a buffer (for unwind-prot). |
1229 | |
1 | 1230 void |
1231 delete_input_buffer (void *buf) | |
1232 { | |
2861 | 1233 delete_buffer (static_cast<YY_BUFFER_STATE> (buf)); |
1 | 1234 } |
1235 | |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1236 // Return 1 if the given character matches any character in the given |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1237 // string. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1238 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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|
1239 static bool |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1240 match_any (char c, const char *s) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1241 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1242 char tmp; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1243 while ((tmp = *s++) != '\0') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1244 { |
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* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1245 if (c == tmp) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1246 return true; |
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* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1247 } |
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* lex.ll: Reorder function definitions.
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|
1248 return false; |
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* lex.ll: Reorder function definitions.
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|
1249 } |
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* lex.ll: Reorder function definitions.
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|
1250 |
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* lex.ll: Reorder function definitions.
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|
1251 // Given information about the spacing surrounding an operator, |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1252 // 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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|
1253 // operator. For example, |
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* lex.ll: Reorder function definitions.
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|
1254 // |
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* lex.ll: Reorder function definitions.
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|
1255 // [ 1 + 2 ] or [ 1+ 2] or [ 1+2 ] ==> binary |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1256 // |
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* lex.ll: Reorder function definitions.
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|
1257 // [ 1 +2 ] ==> unary |
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* lex.ll: Reorder function definitions.
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|
1258 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1259 static bool |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1260 looks_like_bin_op (bool spc_prev, int next_char) |
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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 bool spc_next = (next_char == ' ' || next_char == '\t'); |
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* lex.ll: Reorder function definitions.
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|
1263 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1264 return ((spc_prev && spc_next) || ! spc_prev); |
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* lex.ll: Reorder function definitions.
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|
1265 } |
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* lex.ll: Reorder function definitions.
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|
1266 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1267 bool |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1268 is_keyword (const std::string& s) |
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* lex.ll: Reorder function definitions.
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|
1269 { |
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* lex.ll: Reorder function definitions.
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|
1270 // Parsing function names like "set.property_name" inside |
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* lex.ll: Reorder function definitions.
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|
1271 // classdef-style class definitions is simplified by handling the |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1272 // "set" and "get" portions of the names using the same mechanism as |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1273 // is used for keywords. However, they are not really keywords in |
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* lex.ll: Reorder function definitions.
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|
1274 // the language, so omit them from the list of possible keywords. |
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* lex.ll: Reorder function definitions.
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|
1275 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1276 return (octave_kw_hash::in_word_set (s.c_str (), s.length ()) != 0 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1277 && ! (s == "set" || s == "get")); |
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|
1278 } |
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* lex.ll: Reorder function definitions.
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|
1279 |
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|
1280 DEFUN (iskeyword, args, , |
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* lex.ll: Reorder function definitions.
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|
1281 "-*- texinfo -*-\n\ |
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|
1282 @deftypefn {Built-in Function} {} iskeyword ()\n\ |
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* lex.ll: Reorder function definitions.
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|
1283 @deftypefnx {Built-in Function} {} iskeyword (@var{name})\n\ |
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|
1284 Return true if @var{name} is an Octave keyword. If @var{name}\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1285 is omitted, return a list of keywords.\n\ |
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* lex.ll: Reorder function definitions.
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|
1286 @seealso{isvarname, exist}\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1287 @end deftypefn") |
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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 octave_value retval; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1290 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1291 int argc = args.length () + 1; |
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* lex.ll: Reorder function definitions.
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|
1292 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1293 string_vector argv = args.make_argv ("iskeyword"); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1294 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1295 if (error_state) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1296 return retval; |
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* lex.ll: Reorder function definitions.
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|
1297 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1298 if (argc == 1) |
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* lex.ll: Reorder function definitions.
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|
1299 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1300 // Neither set and get are keywords. See the note in the |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1301 // is_keyword function for additional details. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1302 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1303 string_vector lst (TOTAL_KEYWORDS); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1304 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1305 int j = 0; |
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* lex.ll: Reorder function definitions.
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|
1306 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1307 for (int i = 0; i < TOTAL_KEYWORDS; i++) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1308 { |
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* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1309 std::string tmp = wordlist[i].name; |
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* lex.ll: Reorder function definitions.
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|
1310 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1311 if (! (tmp == "set" || tmp == "get")) |
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* lex.ll: Reorder function definitions.
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|
1312 lst[j++] = tmp; |
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* lex.ll: Reorder function definitions.
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|
1313 } |
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* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1314 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1315 lst.resize (j); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1316 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1317 retval = Cell (lst.sort ()); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1318 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1319 else if (argc == 2) |
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* lex.ll: Reorder function definitions.
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|
1320 { |
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* lex.ll: Reorder function definitions.
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|
1321 retval = is_keyword (argv[1]); |
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* lex.ll: Reorder function definitions.
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|
1322 } |
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* lex.ll: Reorder function definitions.
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|
1323 else |
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* lex.ll: Reorder function definitions.
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|
1324 print_usage (); |
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* lex.ll: Reorder function definitions.
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|
1325 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1326 return retval; |
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|
1327 } |
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* lex.ll: Reorder function definitions.
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|
1328 |
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* lex.ll: Reorder function definitions.
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|
1329 /* |
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* lex.ll: Reorder function definitions.
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|
1330 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1331 %!assert (iskeyword ("for")) |
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* lex.ll: Reorder function definitions.
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|
1332 %!assert (iskeyword ("fort"), false) |
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* lex.ll: Reorder function definitions.
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|
1333 %!assert (iskeyword ("fft"), false) |
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* lex.ll: Reorder function definitions.
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|
1334 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1335 */ |
73a21ade0b6b
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|
1336 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1337 void |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1338 prep_lexer_for_script_file (void) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1339 { |
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* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1340 BEGIN (SCRIPT_FILE_BEGIN); |
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* lex.ll: Reorder function definitions.
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|
1341 } |
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* lex.ll: Reorder function definitions.
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|
1342 |
73a21ade0b6b
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|
1343 void |
73a21ade0b6b
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changeset
|
1344 prep_lexer_for_function_file (void) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1345 { |
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* lex.ll: Reorder function definitions.
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|
1346 BEGIN (FUNCTION_FILE_BEGIN); |
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|
1347 } |
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* lex.ll: Reorder function definitions.
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|
1348 |
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* lex.ll: Reorder function definitions.
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|
1349 // Used to delete trailing white space from tokens. |
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* lex.ll: Reorder function definitions.
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1350 |
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|
1351 static std::string |
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* lex.ll: Reorder function definitions.
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1352 strip_trailing_whitespace (char *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 std::string retval = s; |
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* lex.ll: Reorder function definitions.
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|
1355 |
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1356 size_t pos = retval.find_first_of (" \t"); |
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* lex.ll: Reorder function definitions.
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|
1357 |
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|
1358 if (pos != std::string::npos) |
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* lex.ll: Reorder function definitions.
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1359 retval.resize (pos); |
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* lex.ll: Reorder function definitions.
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|
1360 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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1361 return retval; |
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* lex.ll: Reorder function definitions.
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|
1362 } |
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|
1363 |
73a21ade0b6b
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|
1364 static int |
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* lex.ll: Reorder function definitions.
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|
1365 octave_read (char *buf, unsigned max_size) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1366 { |
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* lex.ll: Reorder function definitions.
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|
1367 static const char * const eol = "\n"; |
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* lex.ll: Reorder function definitions.
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|
1368 static std::string input_buf; |
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* lex.ll: Reorder function definitions.
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|
1369 static const char *pos = 0; |
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* lex.ll: Reorder function definitions.
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|
1370 static size_t chars_left = 0; |
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* lex.ll: Reorder function definitions.
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|
1371 static bool eof = false; |
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* lex.ll: Reorder function definitions.
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|
1372 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1373 int status = 0; |
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* lex.ll: Reorder function definitions.
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|
1374 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1375 if (chars_left == 0) |
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* lex.ll: Reorder function definitions.
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|
1376 { |
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* lex.ll: Reorder function definitions.
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|
1377 pos = 0; |
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* lex.ll: Reorder function definitions.
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|
1378 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1379 input_buf = get_user_input (eof); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1380 |
73a21ade0b6b
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|
1381 chars_left = input_buf.length (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1382 |
73a21ade0b6b
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|
1383 pos = input_buf.c_str (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1384 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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diff
changeset
|
1385 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1386 if (chars_left > 0) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1387 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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changeset
|
1388 size_t len = max_size > chars_left ? chars_left : max_size; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1389 assert (len > 0); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1390 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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changeset
|
1391 memcpy (buf, pos, len); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1392 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1393 chars_left -= len; |
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* lex.ll: Reorder function definitions.
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|
1394 pos += len; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1395 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1396 // Make sure input ends with a new line character. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1397 if (chars_left == 0 && buf[len-1] != '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1398 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1399 if (len < max_size) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1400 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1401 // There is enough room to plug the newline character in |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1402 // the buffer. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1403 buf[len++] = '\n'; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1404 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1405 else |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1406 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1407 // There isn't enough room to plug the newline character |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1408 // in the buffer so make sure it is returned on the next |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1409 // octave_read call. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1410 pos = eol; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1411 chars_left = 1; |
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* lex.ll: Reorder function definitions.
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changeset
|
1412 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
16113
diff
changeset
|
1413 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1414 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1415 status = len; |
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* lex.ll: Reorder function definitions.
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changeset
|
1416 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1417 else |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1418 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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changeset
|
1419 status = YY_NULL; |
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* lex.ll: Reorder function definitions.
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changeset
|
1420 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1421 if (! eof) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1422 YY_FATAL_ERROR ("octave_read () in flex scanner failed"); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1423 } |
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
diff
changeset
|
1425 return status; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1426 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1427 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1428 static void |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1429 display_token (int tok) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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|
1430 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1431 switch (tok) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1432 { |
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>
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changeset
|
1434 case ':': std::cerr << "':'\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1435 case '-': std::cerr << "'-'\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1436 case '+': std::cerr << "'+'\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1437 case '*': std::cerr << "'*'\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1438 case '/': std::cerr << "'/'\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1439 case ADD_EQ: std::cerr << "ADD_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1440 case SUB_EQ: std::cerr << "SUB_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1441 case MUL_EQ: std::cerr << "MUL_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
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changeset
|
1442 case DIV_EQ: std::cerr << "DIV_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1443 case LEFTDIV_EQ: std::cerr << "LEFTDIV_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1444 case POW_EQ: std::cerr << "POW_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1445 case EMUL_EQ: std::cerr << "EMUL_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1446 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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changeset
|
1447 case ELEFTDIV_EQ: std::cerr << "ELEFTDIV_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1448 case EPOW_EQ: std::cerr << "EPOW_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1449 case AND_EQ: std::cerr << "AND_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1450 case OR_EQ: std::cerr << "OR_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1451 case LSHIFT_EQ: std::cerr << "LSHIFT_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1452 case RSHIFT_EQ: std::cerr << "RSHIFT_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1453 case LSHIFT: std::cerr << "LSHIFT\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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changeset
|
1454 case RSHIFT: std::cerr << "RSHIFT\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1455 case EXPR_AND_AND: std::cerr << "EXPR_AND_AND\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1456 case EXPR_OR_OR: std::cerr << "EXPR_OR_OR\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1457 case EXPR_AND: std::cerr << "EXPR_AND\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1458 case EXPR_OR: std::cerr << "EXPR_OR\n"; break; |
73a21ade0b6b
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|
1459 case EXPR_NOT: std::cerr << "EXPR_NOT\n"; break; |
73a21ade0b6b
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|
1460 case EXPR_LT: std::cerr << "EXPR_LT\n"; break; |
73a21ade0b6b
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|
1461 case EXPR_LE: std::cerr << "EXPR_LE\n"; break; |
73a21ade0b6b
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changeset
|
1462 case EXPR_EQ: std::cerr << "EXPR_EQ\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1463 case EXPR_NE: std::cerr << "EXPR_NE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1464 case EXPR_GE: std::cerr << "EXPR_GE\n"; break; |
73a21ade0b6b
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changeset
|
1465 case EXPR_GT: std::cerr << "EXPR_GT\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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|
1466 case LEFTDIV: std::cerr << "LEFTDIV\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1467 case EMUL: std::cerr << "EMUL\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1468 case EDIV: std::cerr << "EDIV\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1469 case ELEFTDIV: std::cerr << "ELEFTDIV\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1470 case EPLUS: std::cerr << "EPLUS\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1471 case EMINUS: std::cerr << "EMINUS\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1472 case QUOTE: std::cerr << "QUOTE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1473 case TRANSPOSE: std::cerr << "TRANSPOSE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1474 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
|
1475 case MINUS_MINUS: std::cerr << "MINUS_MINUS\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1476 case POW: std::cerr << "POW\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1477 case EPOW: std::cerr << "EPOW\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1478 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1479 case NUM: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1480 case IMAG_NUM: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1481 std::cerr << (tok == NUM ? "NUM" : "IMAG_NUM") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1482 << " [" << yylval.tok_val->number () << "]\n"; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1483 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1484 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1485 case STRUCT_ELT: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1486 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
|
1487 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1488 case NAME: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1489 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1490 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
|
1491 std::cerr << "NAME"; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1492 if (sr) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1493 std::cerr << " [" << sr->name () << "]"; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1494 std::cerr << "\n"; |
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 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 END: std::cerr << "END\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1499 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1500 case DQ_STRING: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1501 case SQ_STRING: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1502 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
|
1503 << " [" << yylval.tok_val->text () << "]\n"; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1504 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1505 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1506 case FOR: std::cerr << "FOR\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1507 case WHILE: std::cerr << "WHILE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1508 case DO: std::cerr << "DO\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1509 case UNTIL: std::cerr << "UNTIL\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1510 case IF: std::cerr << "IF\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1511 case ELSEIF: std::cerr << "ELSEIF\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1512 case ELSE: std::cerr << "ELSE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1513 case SWITCH: std::cerr << "SWITCH\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1514 case CASE: std::cerr << "CASE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1515 case OTHERWISE: std::cerr << "OTHERWISE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1516 case BREAK: std::cerr << "BREAK\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1517 case CONTINUE: std::cerr << "CONTINUE\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1518 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
|
1519 case UNWIND: std::cerr << "UNWIND\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1520 case CLEANUP: std::cerr << "CLEANUP\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1521 case TRY: std::cerr << "TRY\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1522 case CATCH: std::cerr << "CATCH\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1523 case GLOBAL: std::cerr << "GLOBAL\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1524 case PERSISTENT: std::cerr << "PERSISTENT\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1525 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
|
1526 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
|
1527 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
|
1528 case FCN: std::cerr << "FCN\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1529 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
|
1530 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
|
1531 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
|
1532 case SUPERCLASSREF: std::cerr << "SUPERCLASSREF\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1533 case METAQUERY: std::cerr << "METAQUERY\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1534 case GET: std::cerr << "GET\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1535 case SET: std::cerr << "SET\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1536 case PROPERTIES: std::cerr << "PROPERTIES\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1537 case METHODS: std::cerr << "METHODS\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1538 case EVENTS: std::cerr << "EVENTS\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1539 case CLASSDEF: std::cerr << "CLASSDEF\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1540 case '\n': std::cerr << "\\n\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1541 case '\r': std::cerr << "\\r\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1542 case '\t': std::cerr << "TAB\n"; break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1543 default: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1544 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1545 if (tok < 256) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1546 std::cerr << static_cast<char> (tok) << "\n"; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1547 else |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1548 std::cerr << "UNKNOWN(" << tok << ")\n"; |
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 break; |
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 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1553 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1554 static void |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1555 display_state (void) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1556 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1557 std::cerr << "S: "; |
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 switch (YY_START) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1560 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1561 case INITIAL: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1562 std::cerr << "INITIAL" << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1563 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1564 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1565 case COMMAND_START: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1566 std::cerr << "COMMAND_START" << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1567 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1568 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1569 case MATRIX_START: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1570 std::cerr << "MATRIX_START" << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1571 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1572 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1573 case SCRIPT_FILE_BEGIN: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1574 std::cerr << "SCRIPT_FILE_BEGIN" << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1575 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1576 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1577 case FUNCTION_FILE_BEGIN: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1578 std::cerr << "FUNCTION_FILE_BEGIN" << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1579 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1580 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1581 default: |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1582 std::cerr << "UNKNOWN START STATE!" << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1583 break; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1584 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1585 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1586 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1587 static void |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1588 lexer_debug (const char *pattern, const char *text) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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|
1589 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1590 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
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|
1591 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1592 display_state (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1593 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1594 std::cerr << "P: " << pattern << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1595 std::cerr << "T: " << text << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1596 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1597 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1598 DEFUN (__display_tokens__, args, nargout, |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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|
1599 "-*- texinfo -*-\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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|
1600 @deftypefn {Built-in Function} {} __display_tokens__ ()\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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|
1601 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
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|
1602 lexer displays tokens as they are read.\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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|
1603 @end deftypefn") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
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|
1604 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1605 return SET_INTERNAL_VARIABLE (display_tokens); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1606 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1607 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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|
1608 DEFUN (__token_count__, , , |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
16113
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|
1609 "-*- texinfo -*-\n\ |
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* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1610 @deftypefn {Built-in Function} {} __token_count__ ()\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
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|
1611 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
|
1612 @end deftypefn") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
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|
1613 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1614 return octave_value (Vtoken_count); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1615 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1616 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1617 DEFUN (__lexer_debug_flag__, args, nargout, |
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* lex.ll: Reorder function definitions.
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16113
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|
1618 "-*- texinfo -*-\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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|
1619 @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>
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16113
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|
1620 Undocumented internal function.\n\ |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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|
1621 @end deftypefn") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
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|
1622 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1623 octave_value retval; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1624 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1625 retval = set_internal_variable (lexer_debug_flag, args, nargout, |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1626 "__lexer_debug_flag__"); |
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 return retval; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1629 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1630 |
16117
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1631 class |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
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changeset
|
1632 flex_stream_reader : public stream_reader |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1633 { |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1634 public: |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1635 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
|
1636 : 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
|
1637 { } |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1638 |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1639 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
|
1640 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
|
1641 |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1642 private: |
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 // No copying! |
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 (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 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
|
1649 |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1650 lexical_feedback *lexer; |
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 char *buf; |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1653 }; |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1654 |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1655 lexical_feedback::~lexical_feedback (void) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1656 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1657 // 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
|
1658 // column numbers. |
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 while (! token_stack.empty ()) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1661 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1662 delete token_stack.top (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1663 token_stack.pop (); |
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 } |
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 // GAG. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1668 // |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1669 // 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
|
1670 // that we insert a comma ahead of it. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1671 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1672 void |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1673 lexical_feedback::do_comma_insert_check (void) |
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 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
|
1676 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1677 int c = text_yyinput (); |
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 xunput (c, yytext); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1680 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1681 if (spc_gobbled) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1682 xunput (' ', yytext); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
1683 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1684 do_comma_insert = (! looking_at_object_index.front () |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1685 && bracketflag && c == '['); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1686 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1687 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1688 int |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1689 lexical_feedback::text_yyinput (void) |
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 int c = yyinput (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
1692 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
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changeset
|
1693 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1694 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1695 std::cerr << "I: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1696 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1697 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1698 } |
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 // 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
|
1701 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1702 if (c == '\r') |
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 c = yyinput (); |
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 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1707 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1708 std::cerr << "I: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1709 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1710 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1711 } |
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 if (c != '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1714 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1715 xunput (c, yytext); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1716 c = '\n'; |
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 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1719 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1720 if (c == '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1721 input_line_number++; |
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 return c; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1724 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1725 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1726 void |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1727 lexical_feedback::xunput (char c, char *buf) |
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 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1730 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1731 std::cerr << "U: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1732 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1733 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1734 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1735 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1736 if (c == '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1737 input_line_number--; |
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 yyunput (c, buf); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1740 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1741 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1742 // 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
|
1743 // really looking at. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1744 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1745 void |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1746 lexical_feedback::fixup_column_count (char *s) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1747 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1748 char c; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1749 while ((c = *s++) != '\0') |
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 if (c == '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1752 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1753 input_line_number++; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1754 current_input_column = 1; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1755 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1756 else |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1757 current_input_column++; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1758 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1759 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1760 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1761 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1762 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
|
1763 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1764 bool retval = false; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1765 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1766 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
|
1767 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
|
1768 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1769 if (*i) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1770 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1771 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1772 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1773 } |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1774 } |
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 return retval; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1777 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1778 |
4238 | 1779 // Handle keywords. Return -1 if the keyword should be ignored. |
767 | 1780 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1781 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1782 lexical_feedback::is_keyword_token (const std::string& s) |
1 | 1783 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1784 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
|
1785 int c = current_input_column; |
3805 | 1786 |
1823 | 1787 int len = s.length (); |
922 | 1788 |
5088 | 1789 const octave_kw *kw = octave_kw_hash::in_word_set (s.c_str (), len); |
191 | 1790 |
1497 | 1791 if (kw) |
143 | 1792 { |
1497 | 1793 yylval.tok_val = 0; |
1794 | |
1795 switch (kw->kw_id) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1796 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1797 case break_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1798 case catch_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1799 case continue_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1800 case else_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1801 case otherwise_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1802 case return_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1803 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
|
1804 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1805 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1806 |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1807 case static_kw: |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1808 if ((reading_fcn_file || reading_script_file |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1809 || reading_classdef_file) |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1810 && ! curr_fcn_file_full_name.empty ()) |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1811 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
|
1812 "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
|
1813 input_line_number, |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1814 curr_fcn_file_full_name.c_str ()); |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1815 else |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1816 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
|
1817 "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
|
1818 input_line_number); |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1819 // fall through ... |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1820 |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1821 case persistent_kw: |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1822 break; |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1823 |
10315
57a59eae83cc
untabify src C++ source files
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10182
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changeset
|
1824 case case_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
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changeset
|
1825 case elseif_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1826 case global_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
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changeset
|
1827 case until_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1828 break; |
57a59eae83cc
untabify src C++ source files
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10182
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changeset
|
1829 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
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changeset
|
1830 case end_kw: |
14645
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
1831 if (inside_any_object_index () |
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
1832 || (! reading_classdef_file |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1833 && (defining_func |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
1834 && ! (looking_at_return_list |
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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|
1835 || parsed_function_name.top ())))) |
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1836 return 0; |
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|
1837 |
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|
1838 yylval.tok_val = new token (token::simple_end, l, c); |
16113
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1839 at_beginning_of_statement = true; |
10315
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untabify src C++ source files
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changeset
|
1840 break; |
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changeset
|
1841 |
57a59eae83cc
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|
1842 case end_try_catch_kw: |
57a59eae83cc
untabify src C++ source files
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|
1843 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>
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16111
diff
changeset
|
1844 at_beginning_of_statement = true; |
10315
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untabify src C++ source files
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diff
changeset
|
1845 break; |
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untabify src C++ source files
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changeset
|
1846 |
57a59eae83cc
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|
1847 case end_unwind_protect_kw: |
57a59eae83cc
untabify src C++ source files
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diff
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|
1848 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
|
1849 at_beginning_of_statement = true; |
10315
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untabify src C++ source files
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changeset
|
1850 break; |
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|
1851 |
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|
1852 case endfor_kw: |
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|
1853 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:
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diff
changeset
|
1854 at_beginning_of_statement = true; |
10315
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untabify src C++ source files
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diff
changeset
|
1855 break; |
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untabify src C++ source files
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changeset
|
1856 |
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|
1857 case endfunction_kw: |
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|
1858 yylval.tok_val = new token (token::function_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
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diff
changeset
|
1859 at_beginning_of_statement = true; |
10315
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untabify src C++ source files
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diff
changeset
|
1860 break; |
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|
1861 |
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|
1862 case endif_kw: |
57a59eae83cc
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|
1863 yylval.tok_val = new token (token::if_end, l, c); |
16113
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move static lexer helper functions to lexical_feedback class
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diff
changeset
|
1864 at_beginning_of_statement = true; |
10315
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changeset
|
1865 break; |
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|
1866 |
13246 | 1867 case endparfor_kw: |
1868 yylval.tok_val = new token (token::parfor_end, l, c); | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
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diff
changeset
|
1869 at_beginning_of_statement = true; |
13246 | 1870 break; |
1871 | |
10315
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|
1872 case endswitch_kw: |
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changeset
|
1873 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>
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diff
changeset
|
1874 at_beginning_of_statement = true; |
10315
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diff
changeset
|
1875 break; |
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changeset
|
1876 |
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|
1877 case endwhile_kw: |
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changeset
|
1878 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>
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changeset
|
1879 at_beginning_of_statement = true; |
10315
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changeset
|
1880 break; |
11586
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11523
diff
changeset
|
1881 |
10315
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diff
changeset
|
1882 case endclassdef_kw: |
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changeset
|
1883 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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changeset
|
1884 at_beginning_of_statement = true; |
10315
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changeset
|
1885 break; |
11586
12df7854fa7c
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11523
diff
changeset
|
1886 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
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13246
diff
changeset
|
1887 case endenumeration_kw: |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
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13246
diff
changeset
|
1888 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>
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diff
changeset
|
1889 at_beginning_of_statement = true; |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1890 break; |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
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13246
diff
changeset
|
1891 |
10315
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changeset
|
1892 case endevents_kw: |
57a59eae83cc
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changeset
|
1893 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>
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diff
changeset
|
1894 at_beginning_of_statement = true; |
10315
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|
1895 break; |
11586
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strip trailing whitespace from source files
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diff
changeset
|
1896 |
10315
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diff
changeset
|
1897 case endmethods_kw: |
57a59eae83cc
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changeset
|
1898 yylval.tok_val = new token (token::methods_end, l, c); |
16113
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move static lexer helper functions to lexical_feedback class
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changeset
|
1899 at_beginning_of_statement = true; |
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|
1900 break; |
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|
1901 |
10315
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changeset
|
1902 case endproperties_kw: |
57a59eae83cc
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changeset
|
1903 yylval.tok_val = new token (token::properties_end, l, c); |
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
|
1904 at_beginning_of_statement = true; |
10315
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|
1905 break; |
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changeset
|
1906 |
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 |
10315
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changeset
|
1908 case for_kw: |
13245
027a2186cd90
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1909 case parfor_kw: |
10315
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|
1910 case while_kw: |
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|
1911 promptflag--; |
16113
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changeset
|
1912 looping++; |
10315
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changeset
|
1913 break; |
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|
1914 |
57a59eae83cc
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changeset
|
1915 case do_kw: |
16113
7c5e5e97a3bc
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changeset
|
1916 at_beginning_of_statement = true; |
10315
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1917 promptflag--; |
16113
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|
1918 looping++; |
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changeset
|
1919 break; |
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|
1920 |
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|
1921 case try_kw: |
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|
1922 case unwind_protect_kw: |
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changeset
|
1923 at_beginning_of_statement = true; |
10315
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changeset
|
1924 promptflag--; |
57a59eae83cc
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changeset
|
1925 break; |
57a59eae83cc
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|
1926 |
57a59eae83cc
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changeset
|
1927 case if_kw: |
57a59eae83cc
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changeset
|
1928 case switch_kw: |
57a59eae83cc
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changeset
|
1929 promptflag--; |
57a59eae83cc
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|
1930 break; |
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|
1931 |
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|
1932 case get_kw: |
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|
1933 case set_kw: |
10315
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|
1934 // 'get' and 'set' are keywords in classdef method |
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|
1935 // declarations. |
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|
1936 if (! maybe_classdef_get_set_method) |
10315
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|
1937 return 0; |
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|
1938 break; |
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changeset
|
1939 |
13249
7861a5fd3479
accept enumeration keyword
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13246
diff
changeset
|
1940 case enumeration_kw: |
7861a5fd3479
accept enumeration keyword
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13246
diff
changeset
|
1941 case events_kw: |
10315
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changeset
|
1942 case methods_kw: |
13249
7861a5fd3479
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13246
diff
changeset
|
1943 case properties_kw: |
10315
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|
1944 // 'properties', 'methods' and 'events' are keywords for |
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|
1945 // classdef blocks. |
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|
1946 if (! parsing_classdef) |
10315
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|
1947 return 0; |
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|
1948 // fall through ... |
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|
1949 |
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changeset
|
1950 case classdef_kw: |
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|
1951 // 'classdef' is always a keyword. |
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1952 promptflag--; |
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|
1953 break; |
10315
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changeset
|
1954 |
57a59eae83cc
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changeset
|
1955 case function_kw: |
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|
1956 promptflag--; |
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changeset
|
1957 |
16113
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changeset
|
1958 defining_func++; |
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1959 parsed_function_name.push (false); |
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1960 |
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1961 if (! (reading_fcn_file || reading_script_file |
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1962 || reading_classdef_file)) |
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1963 input_line_number = 1; |
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1964 break; |
1497 | 1965 |
3174 | 1966 case magic_file_kw: |
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1967 { |
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1968 if ((reading_fcn_file || reading_script_file |
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1969 || reading_classdef_file) |
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|
1970 && ! curr_fcn_file_full_name.empty ()) |
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1971 yylval.tok_val = new token (curr_fcn_file_full_name, l, c); |
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1972 else |
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1973 yylval.tok_val = new token ("stdin", l, c); |
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|
1974 } |
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1975 break; |
3174 | 1976 |
1977 case magic_line_kw: | |
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1978 yylval.tok_val = new token (static_cast<double> (l), "", l, c); |
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|
1979 break; |
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diff
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|
1980 |
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|
1981 default: |
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|
1982 panic_impossible (); |
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1983 } |
1497 | 1984 |
1985 if (! yylval.tok_val) | |
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1986 yylval.tok_val = new token (l, c); |
1497 | 1987 |
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move static lexer helper functions to lexical_feedback class
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|
1988 token_stack.push (yylval.tok_val); |
1497 | 1989 |
1990 return kw->tok; | |
143 | 1991 } |
1 | 1992 |
1993 return 0; | |
1994 } | |
1995 | |
16113
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move static lexer helper functions to lexical_feedback class
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|
1996 bool |
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move static lexer helper functions to lexical_feedback class
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|
1997 lexical_feedback::is_variable (const std::string& name) |
2702 | 1998 { |
8001
ff9e7873f8ea
improve handling of command-style names in matrix_or_assign_lhs context
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|
1999 return (symbol_table::is_variable (name) |
16113
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move static lexer helper functions to lexical_feedback class
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|
2000 || (pending_local_variables.find (name) |
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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|
2001 != pending_local_variables.end ())); |
2702 | 2002 } |
2003 | |
16113
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2004 std::string |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
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diff
changeset
|
2005 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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diff
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|
2006 { |
74f5e0c7de9e
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diff
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|
2007 std::string buf; |
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diff
changeset
|
2008 |
74f5e0c7de9e
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diff
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|
2009 bool at_bol = true; |
74f5e0c7de9e
first pass at handling block comments
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diff
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|
2010 bool look_for_marker = false; |
74f5e0c7de9e
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diff
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|
2011 |
74f5e0c7de9e
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diff
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|
2012 bool warned_incompatible = false; |
74f5e0c7de9e
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diff
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|
2013 |
74f5e0c7de9e
first pass at handling block comments
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7722
diff
changeset
|
2014 int c = 0; |
74f5e0c7de9e
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7722
diff
changeset
|
2015 |
74f5e0c7de9e
first pass at handling block comments
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7722
diff
changeset
|
2016 while ((c = reader.getc ()) != EOF) |
74f5e0c7de9e
first pass at handling block comments
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parents:
7722
diff
changeset
|
2017 { |
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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|
2018 current_input_column++; |
7723
74f5e0c7de9e
first pass at handling block comments
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diff
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|
2019 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
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diff
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|
2020 if (look_for_marker) |
10315
57a59eae83cc
untabify src C++ source files
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|
2021 { |
57a59eae83cc
untabify src C++ source files
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changeset
|
2022 at_bol = false; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2023 look_for_marker = false; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2024 |
57a59eae83cc
untabify src C++ source files
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changeset
|
2025 if (c == '{' || c == '}') |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2026 { |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2027 std::string tmp_buf (1, static_cast<char> (c)); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2028 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2029 int type = c; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2030 |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2031 bool done = false; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2032 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2033 while ((c = reader.getc ()) != EOF && ! done) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2034 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2035 current_input_column++; |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2036 |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2037 switch (c) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2038 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2039 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2040 case '\t': |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2041 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2042 break; |
57a59eae83cc
untabify src C++ source files
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parents:
10182
diff
changeset
|
2043 |
57a59eae83cc
untabify src C++ source files
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parents:
10182
diff
changeset
|
2044 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2045 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2046 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2047 at_bol = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2048 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2049 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2050 if (type == '{') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2051 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2052 block_comment_nesting_level++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2053 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2054 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2055 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2056 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2057 block_comment_nesting_level--; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2058 promptflag++; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2059 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2060 if (block_comment_nesting_level == 0) |
10315
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 buf += grab_comment_block (reader, true, eof); |
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 return buf; |
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 } |
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 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2069 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2070 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2071 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2072 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2073 buf += tmp_buf; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2074 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2075 break; |
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 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2078 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2079 } |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2080 |
7898
cce16b4e0970
lex.l (grab_block_comment): Use parens around || expression within && expression
John W. Eaton <jwe@octave.org>
parents:
7728
diff
changeset
|
2081 if (at_bol && (c == '%' || c == '#')) |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2082 { |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2083 if (c == '#' && ! warned_incompatible) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2084 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2085 warned_incompatible = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2086 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2087 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2088 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2089 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2090 look_for_marker = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2091 } |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2092 else |
10315
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 buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2095 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2096 if (c == '\n') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2097 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
2098 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2099 at_bol = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2100 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2101 } |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2102 } |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2103 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2104 if (c == EOF) |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2105 eof = true; |
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 return buf; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2108 } |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2109 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2110 std::string |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2111 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
|
2112 bool& eof) |
1 | 2113 { |
4426 | 2114 std::string buf; |
1019 | 2115 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2116 // 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
|
2117 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
|
2118 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2119 // 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
|
2120 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
|
2121 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2122 bool warned_incompatible = false; |
3665 | 2123 |
1019 | 2124 int c = 0; |
1 | 2125 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2126 while ((c = reader.getc ()) != EOF) |
1019 | 2127 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2128 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
|
2129 |
2300 | 2130 if (begin_comment) |
10315
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 if (c == '%' || c == '#') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2133 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2134 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2135 continue; |
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 else if (at_bol && 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 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
|
2140 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2141 bool done = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2142 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2143 while ((c = reader.getc ()) != EOF && ! done) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2144 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2145 current_input_column++; |
10315
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 switch (c) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2148 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2149 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2150 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2151 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2152 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2153 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2154 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2155 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2156 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2157 at_bol = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2158 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2159 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2160 block_comment_nesting_level++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2161 promptflag--; |
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 buf += grab_block_comment (reader, eof); |
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 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2166 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2167 if (eof) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2168 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2169 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2170 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2171 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2172 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2173 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2174 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2175 buf += tmp_buf; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2176 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2177 break; |
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 } |
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 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2182 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2183 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2184 begin_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2185 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2186 } |
2300 | 2187 |
1019 | 2188 if (in_comment) |
10315
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 buf += static_cast<char> (c); |
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 if (c == '\n') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2193 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2194 at_bol = true; |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2195 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2196 in_comment = false; |
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 // FIXME -- bailing out here prevents things like |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2199 // |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2200 // octave> # comment |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2201 // octave> x = 1 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2202 // |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2203 // from failing at the command line, while still |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2204 // allowing blocks of comments to be grabbed properly |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2205 // 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
|
2206 // 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
|
2207 // 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
|
2208 // better way of collecting these comments... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2209 if (! (reading_fcn_file || reading_script_file)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2210 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2211 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2212 } |
1019 | 2213 else |
10315
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 switch (c) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2216 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2217 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2218 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2219 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2220 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2221 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2222 if (! warned_incompatible) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2223 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2224 warned_incompatible = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2225 maybe_gripe_matlab_incompatible_comment (c); |
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 // fall through... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2228 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2229 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2230 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2231 begin_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2232 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2233 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2234 default: |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2235 current_input_column--; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2236 reader.ungetc (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2237 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2238 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2239 } |
1019 | 2240 } |
991 | 2241 |
1019 | 2242 done: |
991 | 2243 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2244 if (c == EOF) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2245 eof = true; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2246 |
4426 | 2247 return buf; |
1 | 2248 } |
2249 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2250 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2251 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
|
2252 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2253 eof = false; |
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 std::string help_txt; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2256 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2257 if (! help_buf.empty ()) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2258 help_txt = help_buf.top (); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2259 |
16116
67f71e2a6190
store pointer to current lexer in flex_stream_reader object
John W. Eaton <jwe@octave.org>
parents:
16114
diff
changeset
|
2260 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
|
2261 |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2262 // 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
|
2263 // initially looking at a block comment. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2264 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2265 std::string txt = start_in_block |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2266 ? grab_block_comment (flex_reader, eof) |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2267 : 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
|
2268 |
8535 | 2269 if (lexer_debug_flag) |
8536
de1b944d5306
lex.l: finish previous change
John W. Eaton <jwe@octave.org>
parents:
8535
diff
changeset
|
2270 std::cerr << "C: " << txt << std::endl; |
8535 | 2271 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2272 if (help_txt.empty () && nesting_level.none ()) |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2273 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7634
diff
changeset
|
2274 if (! help_buf.empty ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2275 help_buf.pop (); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7634
diff
changeset
|
2276 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7634
diff
changeset
|
2277 help_buf.push (txt); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2278 } |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2279 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2280 octave_comment_buffer::append (txt); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2281 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2282 current_input_column = 1; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2283 quote_is_transpose = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2284 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
|
2285 at_beginning_of_statement = true; |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2286 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7634
diff
changeset
|
2287 if (YY_START == COMMAND_START) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2288 BEGIN (INITIAL); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7634
diff
changeset
|
2289 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2290 if (nesting_level.none ()) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2291 return '\n'; |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2292 else if (nesting_level.is_bracket_or_brace ()) |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7634
diff
changeset
|
2293 return ';'; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7634
diff
changeset
|
2294 else |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7634
diff
changeset
|
2295 return 0; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7634
diff
changeset
|
2296 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2297 |
3263 | 2298 // Recognize separators. If the separator is a CRLF pair, it is |
2299 // replaced by a single LF. | |
2300 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2301 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2302 lexical_feedback::next_token_is_sep_op (void) |
3263 | 2303 { |
2304 bool retval = false; | |
2305 | |
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
|
2306 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
|
2307 |
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2308 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
|
2309 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2310 xunput (c, yytext); |
3263 | 2311 |
2312 return retval; | |
2313 } | |
2314 | |
767 | 2315 // Try to determine if the next token should be treated as a postfix |
2316 // unary operator. This is ugly, but it seems to do the right thing. | |
2317 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2318 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2319 lexical_feedback::next_token_is_postfix_unary_op (bool spc_prev) |
1 | 2320 { |
2857 | 2321 bool un_op = false; |
1 | 2322 |
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
|
2323 int c0 = text_yyinput (); |
1 | 2324 |
3246 | 2325 if (c0 == '\'' && ! spc_prev) |
2326 { | |
2327 un_op = true; | |
2328 } | |
2329 else if (c0 == '.') | |
2330 { | |
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
|
2331 int c1 = text_yyinput (); |
3246 | 2332 un_op = (c1 == '\''); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2333 xunput (c1, yytext); |
3246 | 2334 } |
4613 | 2335 else if (c0 == '+') |
2336 { | |
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
|
2337 int c1 = text_yyinput (); |
4613 | 2338 un_op = (c1 == '+'); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2339 xunput (c1, yytext); |
4613 | 2340 } |
2341 else if (c0 == '-') | |
2342 { | |
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
|
2343 int c1 = text_yyinput (); |
4613 | 2344 un_op = (c1 == '-'); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2345 xunput (c1, yytext); |
4613 | 2346 } |
1 | 2347 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2348 xunput (c0, yytext); |
1 | 2349 |
2350 return un_op; | |
2351 } | |
2352 | |
767 | 2353 // Try to determine if the next token should be treated as a binary |
3246 | 2354 // operator. |
1521 | 2355 // |
3246 | 2356 // This kluge exists because whitespace is not always ignored inside |
3774 | 2357 // the square brackets that are used to create matrix objects (though |
2358 // spacing only really matters in the cases that can be interpreted | |
2359 // either as binary ops or prefix unary ops: currently just +, -). | |
2360 // | |
3779 | 2361 // Note that a line continuation directly following a + or - operator |
2362 // (e.g., the characters '[' 'a' ' ' '+' '\' LFD 'b' ']') will be | |
2363 // parsed as a binary operator. | |
767 | 2364 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2365 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2366 lexical_feedback::next_token_is_bin_op (bool spc_prev) |
1 | 2367 { |
2857 | 2368 bool bin_op = false; |
1 | 2369 |
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
|
2370 int c0 = text_yyinput (); |
1 | 2371 |
2372 switch (c0) | |
2373 { | |
777 | 2374 case '+': |
2375 case '-': | |
3774 | 2376 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2377 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2378 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2379 switch (c1) |
57a59eae83cc
untabify src C++ source files
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changeset
|
2380 { |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2381 case '+': |
57a59eae83cc
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diff
changeset
|
2382 case '-': |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2383 // Unary ops, spacing doesn't matter. |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2384 break; |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2385 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2386 case '=': |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2387 // Binary ops, spacing doesn't matter. |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2388 bin_op = true; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2389 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2390 |
57a59eae83cc
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diff
changeset
|
2391 default: |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2392 // Could be either, spacing matters. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2393 bin_op = looks_like_bin_op (spc_prev, c1); |
57a59eae83cc
untabify src C++ source files
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parents:
10182
diff
changeset
|
2394 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2395 } |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2396 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2397 xunput (c1, yytext); |
3774 | 2398 } |
2399 break; | |
2400 | |
2401 case ':': | |
3246 | 2402 case '/': |
2403 case '\\': | |
2404 case '^': | |
3774 | 2405 // Always a binary op (may also include /=, \=, and ^=). |
2406 bin_op = true; | |
1276 | 2407 break; |
2408 | |
3246 | 2409 // .+ .- ./ .\ .^ .* .** |
1554 | 2410 case '.': |
2411 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2412 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2413 |
57a59eae83cc
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changeset
|
2414 if (match_any (c1, "+-/\\^*")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2415 // Always a binary op (may also include .+=, .-=, ./=, ...). |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2416 bin_op = true; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2417 else if (! isdigit (c1) && c1 != ' ' && c1 != '\t' && c1 != '.') |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2418 // A structure element reference is a binary op. |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2419 bin_op = true; |
57a59eae83cc
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diff
changeset
|
2420 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2421 xunput (c1, yytext); |
1554 | 2422 } |
2423 break; | |
2424 | |
3246 | 2425 // = == & && | || * ** |
2426 case '=': | |
1 | 2427 case '&': |
3246 | 2428 case '|': |
1 | 2429 case '*': |
3774 | 2430 // Always a binary op (may also include ==, &&, ||, **). |
2431 bin_op = true; | |
3246 | 2432 break; |
2433 | |
3774 | 2434 // < <= <> > >= |
1 | 2435 case '<': |
2436 case '>': | |
3774 | 2437 // Always a binary op (may also include <=, <>, >=). |
2438 bin_op = true; | |
2439 break; | |
2440 | |
2441 // ~= != | |
777 | 2442 case '~': |
2443 case '!': | |
3246 | 2444 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2445 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2446 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2447 // ~ and ! can be unary ops, so require following =. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2448 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2449 bin_op = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2450 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2451 xunput (c1, yytext); |
3246 | 2452 } |
1 | 2453 break; |
2454 | |
2455 default: | |
1276 | 2456 break; |
1 | 2457 } |
2458 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2459 xunput (c0, yytext); |
1 | 2460 |
2461 return bin_op; | |
2462 } | |
2463 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2464 // 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
|
2465 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2466 void |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2467 lexical_feedback::scan_for_comments (const char *text) |
3665 | 2468 { |
2469 std::string comment_buf; | |
2470 | |
2471 bool in_comment = false; | |
2472 bool beginning_of_comment = false; | |
2473 | |
2474 int len = strlen (text); | |
2475 int i = 0; | |
2476 | |
2477 while (i < len) | |
2478 { | |
2479 char c = text[i++]; | |
2480 | |
2481 switch (c) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2482 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2483 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2484 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2485 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2486 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2487 if (! beginning_of_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2488 comment_buf += static_cast<char> (c); |
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 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2491 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2492 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2493 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2494 beginning_of_comment = true; |
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 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2497 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2498 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2499 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2500 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2501 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2502 octave_comment_buffer::append (comment_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2503 comment_buf.resize (0); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2504 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2505 beginning_of_comment = false; |
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 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2508 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2509 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2510 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2511 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2512 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2513 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2514 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2515 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2516 } |
3665 | 2517 } |
2518 | |
2519 if (! comment_buf.empty ()) | |
2520 octave_comment_buffer::append (comment_buf); | |
2521 } | |
2522 | |
1001 | 2523 // Discard whitespace, including comments and continuations. |
2524 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2525 // 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
|
2526 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2527 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2528 lexical_feedback::eat_whitespace (void) |
975 | 2529 { |
16106
031117f4db7c
use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents:
16105
diff
changeset
|
2530 int retval = lexical_feedback::NO_WHITESPACE; |
3665 | 2531 |
2532 std::string comment_buf; | |
2533 | |
2857 | 2534 bool in_comment = false; |
3665 | 2535 bool beginning_of_comment = false; |
2536 | |
2537 int c = 0; | |
2538 | |
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
|
2539 while ((c = text_yyinput ()) != EOF) |
975 | 2540 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2541 current_input_column++; |
975 | 2542 |
2543 switch (c) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2544 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2545 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2546 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2547 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2548 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2549 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2550 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2551 } |
16106
031117f4db7c
use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents:
16105
diff
changeset
|
2552 retval |= lexical_feedback::SPACE_OR_TAB; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2553 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2554 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2555 case '\n': |
16106
031117f4db7c
use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents:
16105
diff
changeset
|
2556 retval |= lexical_feedback::NEWLINE; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2557 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2558 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2559 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2560 octave_comment_buffer::append (comment_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2561 comment_buf.resize (0); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2562 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2563 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2564 } |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2565 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2566 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2567 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2568 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2569 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2570 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2571 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2572 if (! beginning_of_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2573 comment_buf += static_cast<char> (c); |
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 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2576 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2577 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2578 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2579 beginning_of_comment = true; |
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 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2582 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2583 case '.': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2584 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2585 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2586 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2587 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2588 break; |
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 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2591 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2592 if (have_ellipsis_continuation ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2593 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2594 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2595 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2596 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2597 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2598 case '\\': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2599 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2600 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2601 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2602 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2603 break; |
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 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2606 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2607 if (have_continuation ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2608 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2609 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2610 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2611 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2612 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2613 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2614 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2615 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2616 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2617 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2618 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2619 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2620 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2621 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2622 } |
975 | 2623 } |
2624 | |
3665 | 2625 if (! comment_buf.empty ()) |
2626 octave_comment_buffer::append (comment_buf); | |
2627 | |
975 | 2628 done: |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2629 xunput (c, yytext); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2630 current_input_column--; |
1001 | 2631 return retval; |
975 | 2632 } |
2633 | |
3220 | 2634 static inline bool |
2635 looks_like_hex (const char *s, int len) | |
2636 { | |
2637 return (len > 2 && s[0] == '0' && (s[1] == 'x' || s[1] == 'X')); | |
2638 } | |
2639 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2640 void |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2641 lexical_feedback::handle_number (void) |
972 | 2642 { |
3220 | 2643 double value = 0.0; |
2644 int nread = 0; | |
2645 | |
3598 | 2646 if (looks_like_hex (yytext, strlen (yytext))) |
3220 | 2647 { |
2648 unsigned long ival; | |
3598 | 2649 |
2650 nread = sscanf (yytext, "%lx", &ival); | |
2651 | |
3220 | 2652 value = static_cast<double> (ival); |
2653 } | |
2654 else | |
3598 | 2655 { |
2656 char *tmp = strsave (yytext); | |
2657 | |
2658 char *idx = strpbrk (tmp, "Dd"); | |
2621 | 2659 |
3598 | 2660 if (idx) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2661 *idx = 'e'; |
3598 | 2662 |
2663 nread = sscanf (tmp, "%lf", &value); | |
2664 | |
2665 delete [] tmp; | |
2666 } | |
972 | 2667 |
1826 | 2668 // If yytext doesn't contain a valid number, we are in deep doo doo. |
985 | 2669 |
972 | 2670 assert (nread == 1); |
2671 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2672 quote_is_transpose = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2673 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
|
2674 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
|
2675 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
|
2676 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2677 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
|
2678 current_input_column); |
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 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
|
2681 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2682 current_input_column += yyleng; |
972 | 2683 |
2684 do_comma_insert_check (); | |
2685 } | |
2686 | |
1001 | 2687 // We have seen a backslash and need to find out if it should be |
2688 // treated as a continuation character. If so, this eats it, up to | |
2689 // and including the new line character. | |
2690 // | |
973 | 2691 // Match whitespace only, followed by a comment character or newline. |
2692 // Once a comment character is found, discard all input until newline. | |
2693 // If non-whitespace characters are found before comment | |
2694 // characters, return 0. Otherwise, return 1. | |
2695 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2696 // 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
|
2697 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2698 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2699 lexical_feedback::have_continuation (bool trailing_comments_ok) |
973 | 2700 { |
5765 | 2701 std::ostringstream buf; |
973 | 2702 |
3665 | 2703 std::string comment_buf; |
2704 | |
2857 | 2705 bool in_comment = false; |
3665 | 2706 bool beginning_of_comment = false; |
2707 | |
2708 int c = 0; | |
2709 | |
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
|
2710 while ((c = text_yyinput ()) != EOF) |
973 | 2711 { |
3802 | 2712 buf << static_cast<char> (c); |
973 | 2713 |
2714 switch (c) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2715 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2716 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2717 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2718 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2719 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2720 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2721 beginning_of_comment = false; |
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 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2724 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2725 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2726 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2727 if (trailing_comments_ok) |
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 (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2730 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2731 if (! beginning_of_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2732 comment_buf += static_cast<char> (c); |
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 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2735 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2736 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2737 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2738 beginning_of_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2739 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2740 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2741 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2742 goto cleanup; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2743 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2744 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2745 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2746 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2747 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2748 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2749 octave_comment_buffer::append (comment_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2750 } |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2751 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2752 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2753 gripe_matlab_incompatible_continuation (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2754 return true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2755 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2756 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2757 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2758 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2759 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2760 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2761 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2762 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2763 goto cleanup; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2764 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2765 } |
973 | 2766 } |
2767 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2768 xunput (c, yytext); |
2857 | 2769 return false; |
973 | 2770 |
3096 | 2771 cleanup: |
4051 | 2772 |
5765 | 2773 std::string s = buf.str (); |
4051 | 2774 |
2775 int len = s.length (); | |
2776 while (len--) | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2777 xunput (s[len], yytext); |
3096 | 2778 |
2857 | 2779 return false; |
973 | 2780 } |
2781 | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
2782 // We have seen a '.' and need to see if it is the start of a |
1001 | 2783 // continuation. If so, this eats it, up to and including the new |
2784 // line character. | |
2785 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2786 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2787 lexical_feedback::have_ellipsis_continuation (bool trailing_comments_ok) |
973 | 2788 { |
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
|
2789 char c1 = text_yyinput (); |
973 | 2790 if (c1 == '.') |
2791 { | |
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
|
2792 char c2 = text_yyinput (); |
1091 | 2793 if (c2 == '.' && have_continuation (trailing_comments_ok)) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2794 return true; |
973 | 2795 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2796 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2797 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2798 xunput (c1, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2799 } |
973 | 2800 } |
2801 else | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2802 xunput (c1, yytext); |
973 | 2803 |
2857 | 2804 return false; |
973 | 2805 } |
2806 | |
1001 | 2807 // See if we have a continuation line. If so, eat it and the leading |
2808 // 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
|
2809 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2810 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2811 lexical_feedback::eat_continuation (void) |
1001 | 2812 { |
16106
031117f4db7c
use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents:
16105
diff
changeset
|
2813 int retval = lexical_feedback::NO_WHITESPACE; |
3665 | 2814 |
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
|
2815 int c = text_yyinput (); |
3665 | 2816 |
1001 | 2817 if ((c == '.' && have_ellipsis_continuation ()) |
3105 | 2818 || (c == '\\' && have_continuation ())) |
1001 | 2819 retval = eat_whitespace (); |
2820 else | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2821 xunput (c, yytext); |
1001 | 2822 |
2823 return retval; | |
2824 } | |
2825 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2826 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2827 lexical_feedback::handle_string (char delim) |
973 | 2828 { |
5765 | 2829 std::ostringstream buf; |
973 | 2830 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2831 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
|
2832 int bos_col = current_input_column; |
3805 | 2833 |
973 | 2834 int c; |
1031 | 2835 int escape_pending = 0; |
973 | 2836 |
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
|
2837 while ((c = text_yyinput ()) != EOF) |
973 | 2838 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2839 current_input_column++; |
973 | 2840 |
3105 | 2841 if (c == '\\') |
10315
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 if (delim == '\'' || escape_pending) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2844 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2845 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2846 escape_pending = 0; |
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 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2849 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2850 if (have_continuation (false)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2851 escape_pending = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2852 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2853 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2854 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2855 escape_pending = 1; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2856 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2857 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2858 continue; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2859 } |
973 | 2860 else if (c == '.') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2861 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2862 if (delim == '\'' || ! have_ellipsis_continuation (false)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2863 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2864 } |
973 | 2865 else if (c == '\n') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2866 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2867 error ("unterminated string constant"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2868 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2869 } |
973 | 2870 else if (c == delim) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2871 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2872 if (escape_pending) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2873 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2874 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2875 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2876 c = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2877 if (c == delim) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2878 { |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2879 buf << static_cast<char> (c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2880 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2881 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2882 { |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2883 std::string s; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2884 xunput (c, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2885 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2886 if (delim == '\'') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2887 s = buf.str (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2888 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2889 s = do_string_escapes (buf.str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2890 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2891 quote_is_transpose = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2892 convert_spaces_to_comma = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2893 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2894 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
|
2895 token_stack.push (yylval.tok_val); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2896 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2897 if (delim == '"') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2898 gripe_matlab_incompatible ("\" used as string delimiter"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2899 else if (delim == '\'') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2900 gripe_single_quote_string (); |
3400 | 2901 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2902 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
|
2903 at_beginning_of_statement = false; |
10315
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 return delim == '"' ? DQ_STRING : SQ_STRING; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2906 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2907 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2908 } |
973 | 2909 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2910 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2911 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2912 } |
973 | 2913 |
1031 | 2914 escape_pending = 0; |
973 | 2915 } |
2916 | |
2917 return LEXICAL_ERROR; | |
2918 } | |
2919 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2920 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2921 lexical_feedback::next_token_is_assign_op (void) |
3208 | 2922 { |
2923 bool retval = false; | |
2924 | |
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
|
2925 int c0 = text_yyinput (); |
3208 | 2926 |
2927 switch (c0) | |
2928 { | |
2929 case '=': | |
2930 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2931 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2932 xunput (c1, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2933 if (c1 != '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2934 retval = true; |
3208 | 2935 } |
2936 break; | |
2937 | |
2938 case '+': | |
2939 case '-': | |
2940 case '*': | |
2941 case '/': | |
2942 case '\\': | |
2943 case '&': | |
2944 case '|': | |
2945 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2946 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2947 xunput (c1, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2948 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2949 retval = true; |
3208 | 2950 } |
2951 break; | |
2952 | |
2953 case '.': | |
2954 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2955 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2956 if (match_any (c1, "+-*/\\")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2957 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2958 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2959 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2960 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2961 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2962 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2963 xunput (c1, yytext); |
3208 | 2964 } |
2965 break; | |
2966 | |
2967 case '>': | |
2968 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2969 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2970 if (c1 == '>') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2971 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2972 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2973 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2974 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2975 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2976 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2977 xunput (c1, yytext); |
3208 | 2978 } |
2979 break; | |
2980 | |
2981 case '<': | |
2982 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2983 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2984 if (c1 == '<') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2985 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2986 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2987 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2988 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2989 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2990 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2991 xunput (c1, yytext); |
3208 | 2992 } |
2993 break; | |
2994 | |
2995 default: | |
2996 break; | |
2997 } | |
2998 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2999 xunput (c0, yytext); |
3208 | 3000 |
3001 return retval; | |
3002 } | |
3003 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3004 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3005 lexical_feedback::next_token_is_index_op (void) |
4633 | 3006 { |
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
|
3007 int c = text_yyinput (); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
3008 xunput (c, yytext); |
4633 | 3009 return c == '(' || c == '{'; |
3010 } | |
3011 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3012 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3013 lexical_feedback::handle_close_bracket (bool spc_gobbled, int bracket_type) |
971 | 3014 { |
4612 | 3015 int retval = bracket_type; |
3208 | 3016 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3017 if (! nesting_level.none ()) |
971 | 3018 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3019 nesting_level.remove (); |
4613 | 3020 |
3021 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 bracketflag--; |
4613 | 3023 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
|
3024 braceflag--; |
4613 | 3025 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3026 panic_impossible (); |
971 | 3027 } |
3028 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3029 if (bracketflag == 0 && braceflag == 0) |
4323 | 3030 BEGIN (INITIAL); |
1001 | 3031 |
4608 | 3032 if (bracket_type == ']' |
3033 && 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
|
3034 && ! looking_at_return_list) |
971 | 3035 { |
3208 | 3036 retval = CLOSE_BRACE; |
971 | 3037 } |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3038 else if ((bracketflag || braceflag) |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3039 && convert_spaces_to_comma |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3040 && (nesting_level.is_bracket () |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3041 || (nesting_level.is_brace () |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3042 && ! looking_at_object_index.front ()))) |
971 | 3043 { |
4633 | 3044 bool index_op = next_token_is_index_op (); |
3045 | |
3046 // Don't insert comma if we are looking at something like | |
3047 // | |
3048 // [x{i}{j}] or [x{i}(j)] | |
3049 // | |
3050 // but do if we are looking at | |
3051 // | |
3052 // [x{i} {j}] or [x{i} (j)] | |
3053 | |
3054 if (spc_gobbled || ! (bracket_type == '}' && index_op)) | |
10315
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 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
|
3057 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3058 bool postfix_un_op = next_token_is_postfix_unary_op (spc_gobbled); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3059 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3060 bool sep_op = next_token_is_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 if (! (postfix_un_op || bin_op || sep_op)) |
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 maybe_warn_separator_insert (','); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3065 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3066 xunput (',', yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3067 return retval; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3068 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3069 } |
971 | 3070 } |
3071 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3072 quote_is_transpose = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3073 convert_spaces_to_comma = true; |
3208 | 3074 |
3075 return retval; | |
971 | 3076 } |
3077 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3078 void |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3079 lexical_feedback::maybe_unput_comma (int spc_gobbled) |
1072 | 3080 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3081 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
|
3082 || (nesting_level.is_brace () |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3083 && ! looking_at_object_index.front ())) |
1072 | 3084 { |
3246 | 3085 int bin_op = next_token_is_bin_op (spc_gobbled); |
1072 | 3086 |
3246 | 3087 int postfix_un_op = next_token_is_postfix_unary_op (spc_gobbled); |
1072 | 3088 |
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
|
3089 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
|
3090 int c2 = text_yyinput (); |
2970 | 3091 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
3092 xunput (c2, yytext); |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
3093 xunput (c1, yytext); |
2970 | 3094 |
3263 | 3095 int sep_op = next_token_is_sep_op (); |
2970 | 3096 |
1072 | 3097 int dot_op = (c1 == '.' |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3098 && (isalpha (c2) || isspace (c2) || c2 == '_')); |
2970 | 3099 |
3388 | 3100 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
|
3101 return; |
3388 | 3102 |
3985 | 3103 int index_op = (c1 == '(' || c1 == '{'); |
3388 | 3104 |
4476 | 3105 // If there is no space before the indexing op, we don't insert |
3106 // a comma. | |
3107 | |
3108 if (index_op && ! spc_gobbled) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3109 return; |
4476 | 3110 |
3111 maybe_warn_separator_insert (','); | |
3112 | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
3113 xunput (',', yytext); |
1072 | 3114 } |
3115 } | |
3116 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3117 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3118 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
|
3119 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3120 std::stack<char> buf; |
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 int c = EOF; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3123 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3124 // Skip whitespace in current statement on current line |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3125 while (true) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3126 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3127 c = text_yyinput (); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3128 |
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
|
3129 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
|
3130 |
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
|
3131 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
|
3132 break; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3133 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3134 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3135 // Restore input. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3136 while (! buf.empty ()) |
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 xunput (buf.top (), yytext); |
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 buf.pop (); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3141 } |
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 return (isalnum (c) || match_any (c, "!\"'(-[_{~")); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3144 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3145 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3146 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
|
3147 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
|
3148 { |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3149 // 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
|
3150 // surprises when parsing things like "NaN ^2". |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3151 |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3152 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
|
3153 || tok == "I" || tok == "i" |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3154 || 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
|
3155 || tok == "Inf" || tok == "inf" |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3156 || tok == "NaN" || tok == "nan"); |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3157 } |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3158 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3159 bool |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3160 lexical_feedback::looks_like_command_arg (void) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3161 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3162 bool retval = true; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3163 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3164 int c0 = text_yyinput (); |
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>
parents:
8745
diff
changeset
|
3166 switch (c0) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3167 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3168 // = == |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3169 case '=': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3170 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3171 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
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changeset
|
3172 |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
3173 if (c1 == '=') |
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 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3176 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3177 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3178 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3179 retval = false; |
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 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3182 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3183 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3184 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3185 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3186 xunput (c1, yytext); |
8746
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 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3189 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3190 case '(': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3191 case '{': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3192 // Indexing. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3193 retval = false; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3194 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3195 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3196 case '\n': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3197 // EOL. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3198 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3199 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3200 case '\'': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3201 case '"': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3202 // Beginning of a character string. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3203 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3204 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3205 // + - ++ -- += -= |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3206 case '+': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3207 case '-': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3208 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3209 int c1 = text_yyinput (); |
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 switch (c1) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3212 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3213 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3214 // EOL. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3215 case '+': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3216 case '-': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3217 // Unary ops, spacing doesn't matter. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3218 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3219 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3220 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3221 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3222 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3223 if (next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3224 retval = false; |
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 break; |
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 case '=': |
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 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3231 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3232 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3233 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3234 retval = false; |
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 xunput (c2, yytext); |
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 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3239 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3240 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3241 xunput (c1, yytext); |
8746
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 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3244 |
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 case '\\': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3248 case '^': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3249 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3250 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3251 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3252 if (! match_any (c1, ",;\n") && (c1 == ' ' || c1 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3253 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3254 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3255 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3256 xunput (c1, yytext); |
8746
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 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3259 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3260 // .+ .- ./ .\ .^ .* .** |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3261 case '.': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3262 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3263 int c1 = text_yyinput (); |
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 if (match_any (c1, "+-/\\^*")) |
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 int c2 = text_yyinput (); |
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 if (c2 == '=') |
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 int c3 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3272 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3273 if (! match_any (c3, ",;\n") && (c3 == ' ' || c3 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3274 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3275 retval = false; |
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 xunput (c3, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3278 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3279 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
|
3280 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3281 retval = false; |
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 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3284 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3285 else if (! match_any (c1, ",;\n") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3286 && (! isdigit (c1) && c1 != ' ' && c1 != '\t' |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3287 && c1 != '.')) |
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 // Structure reference. FIXME -- is this a complete check? |
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 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3292 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3293 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3294 xunput (c1, yytext); |
8746
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 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3297 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3298 // & && | || * ** |
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 case '|': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3301 case '*': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3302 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3303 int c1 = text_yyinput (); |
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 if (c1 == c0) |
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 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3308 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3309 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3310 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3311 retval = false; |
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 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3314 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3315 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
|
3316 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3317 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3318 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3319 xunput (c1, yytext); |
8746
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 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3322 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3323 // < <= > >= |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3324 case '<': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3325 case '>': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3326 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3327 int c1 = text_yyinput (); |
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 if (c1 == '=') |
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 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3332 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3333 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3334 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3335 retval = false; |
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 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3338 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3339 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
|
3340 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3341 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3342 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3343 xunput (c1, yytext); |
8746
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 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3346 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3347 // ~= != |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3348 case '~': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3349 case '!': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3350 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3351 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3352 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3353 // ~ and ! can be unary ops, so require following =. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3354 if (c1 == '=') |
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 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3357 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3358 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3359 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3360 retval = false; |
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 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3363 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3364 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
|
3365 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3366 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3367 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3368 xunput (c1, yytext); |
8746
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 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3371 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3372 default: |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3373 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3374 } |
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 xunput (c0, yytext); |
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 return retval; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3379 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3380 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3381 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3382 lexical_feedback::handle_superclass_identifier (void) |
9476 | 3383 { |
3384 eat_continuation (); | |
3385 | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3386 std::string pkg; |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3387 std::string meth = strip_trailing_whitespace (yytext); |
9476 | 3388 size_t pos = meth.find ("@"); |
3389 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
|
3390 meth = meth.substr (0, pos - 1); |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3391 |
9476 | 3392 pos = cls.find ("."); |
3393 if (pos != std::string::npos) | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3394 { |
9476 | 3395 pkg = cls.substr (pos).substr (1); |
3396 cls = cls.substr (0, pos - 1); | |
3397 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3398 |
9476 | 3399 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
|
3400 || is_keyword_token (pkg)); |
9476 | 3401 if (kw_token) |
3402 { | |
3403 error ("method, class and package names may not be keywords"); | |
3404 return LEXICAL_ERROR; | |
3405 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3406 |
9476 | 3407 yylval.tok_val |
3408 = new token (meth.empty () ? 0 : &(symbol_table::insert (meth)), | |
3409 cls.empty () ? 0 : &(symbol_table::insert (cls)), | |
3410 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
|
3411 input_line_number, |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3412 current_input_column); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3413 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
|
3414 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3415 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
|
3416 current_input_column += yyleng; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3417 |
9476 | 3418 return SUPERCLASSREF; |
3419 } | |
3420 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3421 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3422 lexical_feedback::handle_meta_identifier (void) |
9476 | 3423 { |
3424 eat_continuation (); | |
3425 | |
3426 std::string pkg; | |
3427 std::string cls = strip_trailing_whitespace (yytext).substr (1); | |
3428 size_t pos = cls.find ("."); | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3429 |
9476 | 3430 if (pos != std::string::npos) |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3431 { |
9476 | 3432 pkg = cls.substr (pos).substr (1); |
3433 cls = cls.substr (0, pos - 1); | |
3434 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3435 |
9476 | 3436 int kw_token = is_keyword_token (cls) || is_keyword_token (pkg); |
3437 if (kw_token) | |
3438 { | |
3439 error ("class and package names may not be keywords"); | |
3440 return LEXICAL_ERROR; | |
3441 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3442 |
9476 | 3443 yylval.tok_val |
3444 = 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
|
3445 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
|
3446 input_line_number, |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3447 current_input_column); |
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 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
|
3450 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3451 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
|
3452 current_input_column += yyleng; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3453 |
9476 | 3454 return METAQUERY; |
3455 } | |
3456 | |
767 | 3457 // Figure out exactly what kind of token to return when we have seen |
4238 | 3458 // an identifier. Handles keywords. Return -1 if the identifier |
3459 // should be ignored. | |
767 | 3460 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3461 int |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3462 lexical_feedback::handle_identifier (void) |
146 | 3463 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3464 bool at_bos = at_beginning_of_statement; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3465 |
3974 | 3466 std::string tok = strip_trailing_whitespace (yytext); |
3467 | |
3468 int c = yytext[yyleng-1]; | |
3469 | |
16106
031117f4db7c
use enum for values returned by eat_continuation and eat_whitespace
John W. Eaton <jwe@octave.org>
parents:
16105
diff
changeset
|
3470 bool cont_is_spc = (eat_continuation () != lexical_feedback::NO_WHITESPACE); |
3974 | 3471 |
3472 int spc_gobbled = (cont_is_spc || c == ' ' || c == '\t'); | |
3473 | |
2970 | 3474 // If we are expecting a structure element, avoid recognizing |
3475 // keywords and other special names and return STRUCT_ELT, which is | |
3476 // a string that is also a valid identifier. But first, we have to | |
3477 // decide whether to insert a comma. | |
747 | 3478 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3479 if (looking_at_indirect_ref) |
1072 | 3480 { |
2970 | 3481 do_comma_insert_check (); |
3482 | |
1072 | 3483 maybe_unput_comma (spc_gobbled); |
2819 | 3484 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3485 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
|
3486 current_input_column); |
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 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
|
3489 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3490 quote_is_transpose = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3491 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
|
3492 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
|
3493 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3494 current_input_column += yyleng; |
2819 | 3495 |
2970 | 3496 return STRUCT_ELT; |
1072 | 3497 } |
747 | 3498 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3499 at_beginning_of_statement = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3500 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3501 // 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
|
3502 // 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
|
3503 // 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
|
3504 // statement. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3505 |
4930 | 3506 int kw_token = is_keyword_token (tok); |
3507 | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3508 // 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
|
3509 // 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
|
3510 // statement. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3511 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3512 if (looking_at_function_handle) |
4930 | 3513 { |
3514 if (kw_token) | |
10315
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 error ("function handles may not refer to keywords"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3517 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3518 return LEXICAL_ERROR; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3519 } |
4930 | 3520 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3521 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3522 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
|
3523 current_input_column); |
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 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
|
3526 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3527 current_input_column += yyleng; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3528 quote_is_transpose = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3529 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
|
3530 looking_for_object_index = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3531 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3532 return FCN_HANDLE; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3533 } |
4930 | 3534 } |
3535 | |
5102 | 3536 // 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
|
3537 // Keywords can be followed by identifiers. |
146 | 3538 |
3539 if (kw_token) | |
3540 { | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3541 if (kw_token >= 0) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3542 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3543 current_input_column += yyleng; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3544 quote_is_transpose = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3545 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
|
3546 looking_for_object_index = false; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3547 } |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3548 |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3549 return kw_token; |
146 | 3550 } |
3551 | |
1826 | 3552 // See if we have a plot keyword (title, using, with, or clear). |
146 | 3553 |
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
|
3554 int c1 = text_yyinput (); |
3480 | 3555 |
3556 bool next_tok_is_eq = false; | |
3557 if (c1 == '=') | |
3558 { | |
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
|
3559 int c2 = text_yyinput (); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
3560 xunput (c2, yytext); |
3480 | 3561 |
3562 if (c2 != '=') | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3563 next_tok_is_eq = true; |
3480 | 3564 } |
3565 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
3566 xunput (c1, yytext); |
1001 | 3567 |
2702 | 3568 // Kluge alert. |
3569 // | |
3570 // If we are looking at a text style function, set up to gobble its | |
2745 | 3571 // arguments. |
3572 // | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3573 // If the following token is '=', or if we are parsing a function |
3189 | 3574 // return list or function parameter list, or if we are looking at |
3575 // something like [ab,cd] = foo (), force the symbol to be inserted | |
3576 // as a variable in the current symbol table. | |
2702 | 3577 |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3578 if (! is_variable (tok)) |
2702 | 3579 { |
10052
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3580 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
|
3581 && looks_like_command_arg ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3582 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3583 BEGIN (COMMAND_START); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3584 } |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3585 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
|
3586 || looking_at_decl_list |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3587 || looking_at_return_list |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3588 || (looking_at_parameter_list |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3589 && ! looking_at_initializer_expression)) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3590 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3591 symbol_table::force_variable (tok); |
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 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
|
3594 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3595 pending_local_variables.insert (tok); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3596 } |
2702 | 3597 } |
3598 | |
4234 | 3599 // Find the token in the symbol table. Beware the magic |
3600 // transformation of the end keyword... | |
3601 | |
3602 if (tok == "end") | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3603 tok = "__end__"; |
146 | 3604 |
7336 | 3605 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
|
3606 input_line_number, |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3607 current_input_column); |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3608 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3609 token_stack.push (yylval.tok_val); |
146 | 3610 |
1826 | 3611 // After seeing an identifer, it is ok to convert spaces to a comma |
3612 // (if needed). | |
146 | 3613 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3614 convert_spaces_to_comma = true; |
146 | 3615 |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3616 if (! (next_tok_is_eq || YY_START == COMMAND_START)) |
2877 | 3617 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3618 quote_is_transpose = true; |
146 | 3619 |
2877 | 3620 do_comma_insert_check (); |
3621 | |
3622 maybe_unput_comma (spc_gobbled); | |
146 | 3623 } |
3624 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3625 current_input_column += yyleng; |
146 | 3626 |
9324
29563379fa9b
don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
3627 if (tok != "__end__") |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3628 looking_for_object_index = true; |
9324
29563379fa9b
don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
3629 |
146 | 3630 return NAME; |
3631 } | |
3632 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3633 void |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3634 lexical_feedback::maybe_warn_separator_insert (char sep) |
3388 | 3635 { |
3523 | 3636 std::string nm = curr_fcn_file_full_name; |
3388 | 3637 |
5794 | 3638 if (nm.empty ()) |
3639 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
|
3640 "potential auto-insertion of '%c' near line %d", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3641 sep, input_line_number); |
5794 | 3642 else |
3643 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
|
3644 "potential auto-insertion of '%c' near line %d of file %s", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3645 sep, input_line_number, nm.c_str ()); |
3388 | 3646 } |
3647 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3648 void |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3649 lexical_feedback::gripe_single_quote_string (void) |
3400 | 3650 { |
3523 | 3651 std::string nm = curr_fcn_file_full_name; |
3400 | 3652 |
5794 | 3653 if (nm.empty ()) |
3654 warning_with_id ("Octave:single-quote-string", | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
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3655 "single quote delimited string near line %d", |
16113
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|
3656 input_line_number); |
5794 | 3657 else |
3658 warning_with_id ("Octave:single-quote-string", | |
10315
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parents:
10182
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|
3659 "single quote delimited string near line %d of file %s", |
16113
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parents:
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3660 input_line_number, nm.c_str ()); |
3400 | 3661 } |
3662 | |
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3663 void |
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3664 lexical_feedback::gripe_matlab_incompatible (const std::string& msg) |
4037 | 3665 { |
8974
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3666 std::string nm = curr_fcn_file_full_name; |
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3667 |
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3668 if (nm.empty ()) |
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3669 warning_with_id ("Octave:matlab-incompatible", |
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3670 "potential Matlab compatibility problem: %s", |
57a59eae83cc
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parents:
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3671 msg.c_str ()); |
8974
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3672 else |
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3673 warning_with_id ("Octave:matlab-incompatible", |
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3674 "potential Matlab compatibility problem: %s near line %d offile %s", |
16113
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parents:
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|
3675 msg.c_str (), input_line_number, nm.c_str ()); |
4037 | 3676 } |
3677 | |
16113
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3678 void |
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|
3679 lexical_feedback::maybe_gripe_matlab_incompatible_comment (char c) |
4037 | 3680 { |
3681 if (c == '#') | |
3682 gripe_matlab_incompatible ("# used as comment character"); | |
3683 } | |
3684 | |
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3685 void |
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parents:
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3686 lexical_feedback::gripe_matlab_incompatible_continuation (void) |
4037 | 3687 { |
3688 gripe_matlab_incompatible ("\\ used as line continuation marker"); | |
3689 } | |
3690 | |
16113
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|
3691 void |
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John W. Eaton <jwe@octave.org>
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|
3692 lexical_feedback::gripe_matlab_incompatible_operator (const std::string& op) |
4037 | 3693 { |
3694 std::string t = op; | |
3695 int n = t.length (); | |
3696 if (t[n-1] == '\n') | |
3697 t.resize (n-1); | |
3698 gripe_matlab_incompatible (t + " used as operator"); | |
3699 } |