Mercurial > octave-nkf
annotate libinterp/parse-tree/lex.ll @ 16207:0467d68ca891
move current_input_line to lexical_feedback class
* input.h, input.cc, lex.h, lex.ll (current_input_line): Declare as
member of lexical_feedback class.
(octave_base_reader::octave_gets, octave_terminal_reader::get_input,
octave_file_reader::get_input, octave_eval_string_reader::get_input):
Don't set current_input_line.
(octave_lexer::read): Set current_input_line.
* oct-parse.in.yy (octave_parser::bison_error): Use
curr_lexer->current_input_line.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 06 Mar 2013 19:39:48 -0500 |
parents | 127cccb037bf |
children | e7ff32e7cf82 |
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 | |
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23 /* |
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24 We are using the pure parser interface and the reentrant lexer |
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25 interface but the Octave parser and lexer are NOT properly |
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26 reentrant because both still use many global variables. It should be |
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27 safe to create a parser object and call it while anotehr parser |
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28 object is active (to parse a callback function while the main |
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29 interactive parser is waiting for input, for example) if you take |
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30 care to properly save and restore (typically with an unwind_protect |
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31 object) relevant global values before and after the nested call. |
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32 */ |
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33 |
4753 | 34 %option prefix = "octave_" |
16146 | 35 %option noyywrap |
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36 %option reentrant |
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37 %option bison-bridge |
4753 | 38 |
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39 %top { |
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40 #ifdef HAVE_CONFIG_H |
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41 #include <config.h> |
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42 #endif |
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44 } |
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45 |
4208 | 46 %s COMMAND_START |
47 %s MATRIX_START | |
4240 | 48 |
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49 %x INPUT_FILE_BEGIN |
1 | 50 |
51 %{ | |
240 | 52 |
1341 | 53 #include <cctype> |
54 #include <cstring> | |
55 | |
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56 #include <iostream> |
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57 #include <set> |
5765 | 58 #include <sstream> |
1823 | 59 #include <string> |
4214 | 60 #include <stack> |
1823 | 61 |
4093 | 62 #include <sys/types.h> |
63 #include <unistd.h> | |
64 | |
2926 | 65 #include "cmd-edit.h" |
4153 | 66 #include "quit.h" |
4910 | 67 #include "lo-mappers.h" |
2926 | 68 |
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69 // These would be alphabetical, but oct-parse.h must be included before |
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70 // oct-gperf.h and oct-parse.h must be included after token.h and the tree |
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71 // class declarations. We can't include oct-parse.h in oct-gperf.h |
1497 | 72 // because it may not be protected to allow it to be included multiple |
73 // times. | |
74 | |
4264 | 75 #include "Cell.h" |
3665 | 76 #include "comment-list.h" |
2181 | 77 #include "defun.h" |
1355 | 78 #include "error.h" |
4910 | 79 #include "gripes.h" |
1351 | 80 #include "input.h" |
1355 | 81 #include "lex.h" |
2891 | 82 #include "ov.h" |
1355 | 83 #include "parse.h" |
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84 #include "parse-private.h" |
2987 | 85 #include "pt-all.h" |
2891 | 86 #include "symtab.h" |
87 #include "token.h" | |
88 #include "toplev.h" | |
1355 | 89 #include "utils.h" |
90 #include "variables.h" | |
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91 #include <oct-parse.h> |
2492 | 92 #include <oct-gperf.h> |
1 | 93 |
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94 #if defined (GNULIB_NAMESPACE) |
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95 // Calls to the following functions appear in the generated output from |
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96 // flex without the namespace tag. Redefine them so we will use them |
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97 // via the gnulib namespace. |
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98 #define fprintf GNULIB_NAMESPACE::fprintf |
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99 #define fwrite GNULIB_NAMESPACE::fwrite |
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100 #define isatty GNULIB_NAMESPACE::isatty |
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101 #define malloc GNULIB_NAMESPACE::malloc |
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102 #define realloc GNULIB_NAMESPACE::realloc |
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103 #endif |
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104 |
2716 | 105 #if ! (defined (FLEX_SCANNER) \ |
106 && defined (YY_FLEX_MAJOR_VERSION) && YY_FLEX_MAJOR_VERSION >= 2 \ | |
107 && defined (YY_FLEX_MINOR_VERSION) && YY_FLEX_MINOR_VERSION >= 5) | |
108 #error lex.l requires flex version 2.5.4 or later | |
109 #endif | |
110 | |
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111 #define YY_EXTRA_TYPE octave_lexer * |
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112 #define curr_lexer yyextra |
4753 | 113 |
114 // Arrange to get input via readline. | |
115 | |
116 #ifdef YY_INPUT | |
117 #undef YY_INPUT | |
118 #endif | |
119 #define YY_INPUT(buf, result, max_size) \ | |
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120 result = curr_lexer->read (buf, max_size) |
4753 | 121 |
122 // Try to avoid crashing out completely on fatal scanner errors. | |
123 | |
124 #ifdef YY_FATAL_ERROR | |
125 #undef YY_FATAL_ERROR | |
126 #endif | |
127 #define YY_FATAL_ERROR(msg) \ | |
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128 (yyget_extra (yyscanner))->fatal_error (msg) |
4753 | 129 |
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130 #define DISPLAY_TOK_AND_RETURN(tok) \ |
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131 do \ |
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132 { \ |
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133 int tok_val = tok; \ |
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134 if (Vdisplay_tokens) \ |
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135 curr_lexer->display_token (tok_val); \ |
8535 | 136 if (lexer_debug_flag) \ |
137 { \ | |
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138 std::cerr << "R: "; \ |
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139 curr_lexer->display_token (tok_val); \ |
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140 std::cerr << std::endl; \ |
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141 } \ |
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142 return tok_val; \ |
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143 } \ |
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144 while (0) |
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145 |
4910 | 146 #define COUNT_TOK_AND_RETURN(tok) \ |
147 do \ | |
148 { \ | |
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149 if (tok != '\n') \ |
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150 { \ |
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151 Vtoken_count++; \ |
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152 curr_lexer->token_count++; \ |
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153 } \ |
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154 DISPLAY_TOK_AND_RETURN (tok); \ |
4910 | 155 } \ |
156 while (0) | |
157 | |
4753 | 158 #define TOK_RETURN(tok) \ |
159 do \ | |
160 { \ | |
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161 curr_lexer->current_input_column += yyleng; \ |
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162 curr_lexer->quote_is_transpose = false; \ |
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163 curr_lexer->convert_spaces_to_comma = true; \ |
4910 | 164 COUNT_TOK_AND_RETURN (tok); \ |
4753 | 165 } \ |
166 while (0) | |
167 | |
168 #define TOK_PUSH_AND_RETURN(name, tok) \ | |
169 do \ | |
170 { \ | |
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171 curr_lexer->push_token \ |
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172 (new token (name, curr_lexer->input_line_number, \ |
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173 curr_lexer->current_input_column)); \ |
4753 | 174 TOK_RETURN (tok); \ |
175 } \ | |
176 while (0) | |
177 | |
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178 #define BIN_OP_RETURN_INTERNAL(tok, convert, bos, qit) \ |
4753 | 179 do \ |
180 { \ | |
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181 curr_lexer->push_token \ |
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182 (new token (curr_lexer->input_line_number, \ |
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183 curr_lexer->current_input_column)); \ |
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184 curr_lexer->current_input_column += yyleng; \ |
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185 curr_lexer->quote_is_transpose = qit; \ |
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186 curr_lexer->convert_spaces_to_comma = convert; \ |
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187 curr_lexer->looking_for_object_index = false; \ |
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188 curr_lexer->at_beginning_of_statement = bos; \ |
4910 | 189 COUNT_TOK_AND_RETURN (tok); \ |
4753 | 190 } \ |
191 while (0) | |
192 | |
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193 #define XBIN_OP_RETURN_INTERNAL(tok, convert, bos, qit) \ |
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194 do \ |
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195 { \ |
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196 curr_lexer->gripe_matlab_incompatible_operator (yytext); \ |
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197 BIN_OP_RETURN_INTERNAL (tok, convert, bos, qit); \ |
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198 } \ |
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199 while (0) |
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200 |
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201 #define BIN_OP_RETURN(tok, convert, bos) \ |
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202 do \ |
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203 { \ |
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204 BIN_OP_RETURN_INTERNAL (tok, convert, bos, false); \ |
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205 } \ |
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206 while (0) |
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207 |
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208 #define XBIN_OP_RETURN(tok, convert, bos) \ |
4753 | 209 do \ |
210 { \ | |
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211 curr_lexer->gripe_matlab_incompatible_operator (yytext); \ |
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212 BIN_OP_RETURN (tok, convert, bos); \ |
4753 | 213 } \ |
214 while (0) | |
215 | |
8535 | 216 #define LEXER_DEBUG(pattern) \ |
217 do \ | |
218 { \ | |
219 if (lexer_debug_flag) \ | |
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220 curr_lexer->lexer_debug (pattern, yytext); \ |
8535 | 221 } \ |
222 while (0) | |
223 | |
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224 static bool Vdisplay_tokens = false; |
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225 |
4910 | 226 static unsigned int Vtoken_count = 0; |
227 | |
8535 | 228 // Internal variable for lexer debugging state. |
229 static bool lexer_debug_flag = false; | |
230 | |
146 | 231 // Forward declarations for functions defined at the bottom of this |
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232 // file that are needed inside the lexer actions. |
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233 |
3523 | 234 static std::string strip_trailing_whitespace (char *s); |
1 | 235 |
236 %} | |
237 | |
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238 D [0-9] |
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239 S [ \t] |
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240 NL ((\n)|(\r)|(\r\n)) |
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241 SNL ({S}|{NL}) |
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242 EL (\.\.\.) |
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243 BS (\\) |
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244 CONT ({EL}|{BS}) |
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245 Im [iIjJ] |
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246 CCHAR [#%] |
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247 COMMENT ({CCHAR}.*{NL}) |
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248 SNLCMT ({SNL}|{COMMENT}) |
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249 NOT ((\~)|(\!)) |
4037 | 250 POW ((\*\*)|(\^)) |
251 EPOW (\.{POW}) | |
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252 IDENT ([_$a-zA-Z][_$a-zA-Z0-9]*) |
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253 EXPON ([DdEe][+-]?{D}+) |
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254 NUMBER (({D}+\.?{D}*{EXPON}?)|(\.{D}+{EXPON}?)|(0[xX][0-9a-fA-F]+)) |
1 | 255 %% |
256 | |
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257 %{ |
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258 // Make script and function files start with a bogus token. This makes |
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259 // the parser go down a special path. |
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260 %} |
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261 |
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262 <INPUT_FILE_BEGIN>. { |
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263 LEXER_DEBUG ("<INPUT_FILE_BEGIN>."); |
8535 | 264 |
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265 BEGIN (INITIAL); |
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266 curr_lexer->xunput (yytext[0]); |
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267 |
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268 // May be reset later if we see "function" or "classdef" appears |
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269 // as the first token. |
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270 curr_lexer->reading_script_file = true; |
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271 |
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272 DISPLAY_TOK_AND_RETURN (INPUT_FILE); |
4238 | 273 } |
274 | |
968 | 275 %{ |
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276 // Help and other command-style functions. |
968 | 277 %} |
278 | |
4208 | 279 <COMMAND_START>{NL} { |
8535 | 280 LEXER_DEBUG ("<COMMAND_START>{NL}"); |
281 | |
4323 | 282 BEGIN (INITIAL); |
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283 curr_lexer->input_line_number++; |
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284 curr_lexer->current_input_column = 1; |
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285 |
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286 curr_lexer->quote_is_transpose = false; |
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287 curr_lexer->convert_spaces_to_comma = true; |
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288 curr_lexer->looking_for_object_index = false; |
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289 curr_lexer->at_beginning_of_statement = true; |
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290 |
4910 | 291 COUNT_TOK_AND_RETURN ('\n'); |
967 | 292 } |
1 | 293 |
4208 | 294 <COMMAND_START>[\;\,] { |
8535 | 295 LEXER_DEBUG ("<COMMAND_START>[\\;\\,]"); |
296 | |
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297 curr_lexer->looking_for_object_index = false; |
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298 curr_lexer->at_beginning_of_statement = true; |
5102 | 299 |
300 BEGIN (INITIAL); | |
301 | |
302 if (strcmp (yytext, ",") == 0) | |
303 TOK_RETURN (','); | |
967 | 304 else |
5102 | 305 TOK_RETURN (';'); |
967 | 306 } |
1 | 307 |
4208 | 308 <COMMAND_START>[\"\'] { |
8535 | 309 LEXER_DEBUG ("<COMMAND_START>[\\\"\\']"); |
310 | |
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311 curr_lexer->at_beginning_of_statement = false; |
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312 |
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313 curr_lexer->current_input_column++; |
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314 int tok = curr_lexer->handle_string (yytext[0]); |
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315 |
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316 COUNT_TOK_AND_RETURN (tok); |
975 | 317 } |
318 | |
4923 | 319 <COMMAND_START>[^#% \t\r\n\;\,\"\'][^ \t\r\n\;\,]*{S}* { |
8535 | 320 LEXER_DEBUG ("<COMMAND_START>[^#% \\t\\r\\n\\;\\,\\\"\\'][^ \\t\\r\\n\\;\\,]*{S}*"); |
321 | |
3523 | 322 std::string tok = strip_trailing_whitespace (yytext); |
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323 |
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324 curr_lexer->looking_for_object_index = false; |
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325 curr_lexer->at_beginning_of_statement = false; |
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326 |
5279 | 327 TOK_PUSH_AND_RETURN (tok, SQ_STRING); |
967 | 328 } |
1 | 329 |
968 | 330 %{ |
1 | 331 // For this and the next two rules, we're looking at ']', and we |
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332 // need to know if the next token is '=' or '=='. |
1 | 333 // |
334 // It would have been so much easier if the delimiters were simply | |
335 // different for the expression on the left hand side of the equals | |
336 // operator. | |
971 | 337 // |
338 // It's also a pain in the ass to decide whether to insert a comma | |
339 // after seeing a ']' character... | |
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340 |
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341 // FIXME -- we need to handle block comments here. |
968 | 342 %} |
343 | |
4208 | 344 <MATRIX_START>{SNLCMT}*\]{S}* { |
8535 | 345 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*\\]{S}*"); |
346 | |
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347 curr_lexer->scan_for_comments (yytext); |
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348 curr_lexer->fixup_column_count (yytext); |
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349 |
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350 curr_lexer->looking_at_object_index.pop_front (); |
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351 |
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352 curr_lexer->looking_for_object_index = true; |
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353 curr_lexer->at_beginning_of_statement = false; |
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354 |
1001 | 355 int c = yytext[yyleng-1]; |
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356 bool cont_is_spc = (curr_lexer->eat_continuation () != octave_lexer::NO_WHITESPACE); |
4608 | 357 bool spc_gobbled = (cont_is_spc || c == ' ' || c == '\t'); |
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358 int tok_to_return = curr_lexer->handle_close_bracket (spc_gobbled, ']'); |
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359 |
5345 | 360 if (spc_gobbled) |
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361 curr_lexer->xunput (' '); |
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362 |
5345 | 363 COUNT_TOK_AND_RETURN (tok_to_return); |
4608 | 364 } |
365 | |
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366 %{ |
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367 // FIXME -- we need to handle block comments here. |
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368 %} |
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369 |
4608 | 370 <MATRIX_START>{SNLCMT}*\}{S}* { |
8535 | 371 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*\\}{S}*"); |
372 | |
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373 curr_lexer->scan_for_comments (yytext); |
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374 curr_lexer->fixup_column_count (yytext); |
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375 |
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376 curr_lexer->looking_at_object_index.pop_front (); |
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377 |
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378 curr_lexer->looking_for_object_index = true; |
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379 curr_lexer->at_beginning_of_statement = false; |
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380 |
4608 | 381 int c = yytext[yyleng-1]; |
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382 bool cont_is_spc = (curr_lexer->eat_continuation () != octave_lexer::NO_WHITESPACE); |
4608 | 383 bool spc_gobbled = (cont_is_spc || c == ' ' || c == '\t'); |
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384 int tok_to_return = curr_lexer->handle_close_bracket (spc_gobbled, '}'); |
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385 |
5345 | 386 if (spc_gobbled) |
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387 curr_lexer->xunput (' '); |
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388 |
5345 | 389 COUNT_TOK_AND_RETURN (tok_to_return); |
967 | 390 } |
1 | 391 |
968 | 392 %{ |
1088 | 393 // Commas are element separators in matrix constants. If we don't |
394 // check for continuations here we can end up inserting too many | |
395 // commas. | |
968 | 396 %} |
397 | |
4208 | 398 <MATRIX_START>{S}*\,{S}* { |
8535 | 399 LEXER_DEBUG ("<MATRIX_START>{S}*\\,{S}*"); |
400 | |
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401 curr_lexer->current_input_column += yyleng; |
3388 | 402 |
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403 int tmp = curr_lexer->eat_continuation (); |
3388 | 404 |
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405 curr_lexer->quote_is_transpose = false; |
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406 curr_lexer->convert_spaces_to_comma = true; |
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407 curr_lexer->looking_for_object_index = false; |
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408 curr_lexer->at_beginning_of_statement = false; |
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409 |
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410 if (! curr_lexer->looking_at_object_index.front ()) |
3388 | 411 { |
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412 if ((tmp & octave_lexer::NEWLINE) == octave_lexer::NEWLINE) |
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413 { |
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414 curr_lexer->maybe_warn_separator_insert (';'); |
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415 |
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416 curr_lexer->xunput (';'); |
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417 } |
3388 | 418 } |
419 | |
4910 | 420 COUNT_TOK_AND_RETURN (','); |
967 | 421 } |
1 | 422 |
968 | 423 %{ |
424 // In some cases, spaces in matrix constants can turn into commas. | |
425 // If commas are required, spaces are not important in matrix | |
1088 | 426 // constants so we just eat them. If we don't check for continuations |
427 // here we can end up inserting too many commas. | |
968 | 428 %} |
430 | 429 |
4208 | 430 <MATRIX_START>{S}+ { |
8535 | 431 LEXER_DEBUG ("<MATRIX_START>{S}+"); |
432 | |
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433 curr_lexer->current_input_column += yyleng; |
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434 |
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435 curr_lexer->at_beginning_of_statement = false; |
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436 |
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437 int tmp = curr_lexer->eat_continuation (); |
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438 |
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439 if (! curr_lexer->looking_at_object_index.front ()) |
967 | 440 { |
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441 bool bin_op = curr_lexer->next_token_is_bin_op (true); |
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442 bool postfix_un_op = curr_lexer->next_token_is_postfix_unary_op (true); |
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443 bool sep_op = curr_lexer->next_token_is_sep_op (); |
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444 |
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445 if (! (postfix_un_op || bin_op || sep_op) |
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446 && curr_lexer->nesting_level.is_bracket_or_brace () |
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447 && curr_lexer->convert_spaces_to_comma) |
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448 { |
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449 if ((tmp & octave_lexer::NEWLINE) == octave_lexer::NEWLINE) |
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450 { |
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451 curr_lexer->maybe_warn_separator_insert (';'); |
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452 |
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453 curr_lexer->xunput (';'); |
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454 } |
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455 |
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456 curr_lexer->quote_is_transpose = false; |
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457 curr_lexer->convert_spaces_to_comma = true; |
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458 curr_lexer->looking_for_object_index = false; |
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459 |
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460 curr_lexer->maybe_warn_separator_insert (','); |
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461 |
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462 COUNT_TOK_AND_RETURN (','); |
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463 } |
967 | 464 } |
465 } | |
430 | 466 |
968 | 467 %{ |
1088 | 468 // Semicolons are handled as row seprators in matrix constants. If we |
469 // don't eat whitespace here we can end up inserting too many | |
470 // semicolons. | |
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471 |
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472 // FIXME -- we need to handle block comments here. |
968 | 473 %} |
474 | |
4208 | 475 <MATRIX_START>{SNLCMT}*;{SNLCMT}* { |
8535 | 476 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*;{SNLCMT}*"); |
477 | |
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478 curr_lexer->scan_for_comments (yytext); |
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479 curr_lexer->fixup_column_count (yytext); |
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480 curr_lexer->eat_whitespace (); |
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481 |
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482 curr_lexer->quote_is_transpose = false; |
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483 curr_lexer->convert_spaces_to_comma = true; |
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484 curr_lexer->looking_for_object_index = false; |
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485 curr_lexer->at_beginning_of_statement = false; |
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486 |
4910 | 487 COUNT_TOK_AND_RETURN (';'); |
967 | 488 } |
489 | |
968 | 490 %{ |
1088 | 491 // In some cases, new lines can also become row separators. If we |
492 // don't eat whitespace here we can end up inserting too many | |
493 // semicolons. | |
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494 |
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495 // FIXME -- we need to handle block comments here. |
985 | 496 %} |
497 | |
4208 | 498 <MATRIX_START>{S}*{COMMENT}{SNLCMT}* | |
499 <MATRIX_START>{S}*{NL}{SNLCMT}* { | |
8535 | 500 LEXER_DEBUG ("<MATRIX_START>{S}*{COMMENT}{SNLCMT}*|<MATRIX_START>{S}*{NL}{SNLCMT}*"); |
501 | |
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502 curr_lexer->scan_for_comments (yytext); |
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503 curr_lexer->fixup_column_count (yytext); |
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504 curr_lexer->eat_whitespace (); |
3388 | 505 |
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506 curr_lexer->quote_is_transpose = false; |
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507 curr_lexer->convert_spaces_to_comma = true; |
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508 curr_lexer->at_beginning_of_statement = false; |
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509 |
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510 if (curr_lexer->nesting_level.none ()) |
4476 | 511 return LEXICAL_ERROR; |
985 | 512 |
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513 if (! curr_lexer->looking_at_object_index.front () |
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514 && curr_lexer->nesting_level.is_bracket_or_brace ()) |
3388 | 515 { |
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516 curr_lexer->maybe_warn_separator_insert (';'); |
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517 |
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518 COUNT_TOK_AND_RETURN (';'); |
985 | 519 } |
520 } | |
521 | |
967 | 522 \[{S}* { |
8535 | 523 LEXER_DEBUG ("\\[{S}*"); |
524 | |
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525 curr_lexer->nesting_level.bracket (); |
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526 |
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527 curr_lexer->looking_at_object_index.push_front (false); |
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528 |
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529 curr_lexer->current_input_column += yyleng; |
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530 curr_lexer->quote_is_transpose = false; |
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531 curr_lexer->convert_spaces_to_comma = true; |
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532 curr_lexer->looking_for_object_index = false; |
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533 curr_lexer->at_beginning_of_statement = false; |
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534 |
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535 if (curr_lexer->defining_func |
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536 && ! curr_lexer->parsed_function_name.top ()) |
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537 curr_lexer->looking_at_return_list = true; |
5615 | 538 else |
16110
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539 curr_lexer->looking_at_matrix_or_assign_lhs = true; |
5615 | 540 |
975 | 541 promptflag--; |
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542 curr_lexer->eat_whitespace (); |
975 | 543 |
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544 curr_lexer->bracketflag++; |
5102 | 545 BEGIN (MATRIX_START); |
546 COUNT_TOK_AND_RETURN ('['); | |
967 | 547 } |
1 | 548 |
968 | 549 \] { |
8535 | 550 LEXER_DEBUG ("\\]"); |
551 | |
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552 curr_lexer->nesting_level.remove (); |
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553 |
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554 curr_lexer->looking_at_object_index.pop_front (); |
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555 |
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556 curr_lexer->looking_for_object_index = true; |
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557 curr_lexer->at_beginning_of_statement = false; |
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558 |
5102 | 559 TOK_RETURN (']'); |
968 | 560 } |
561 | |
562 %{ | |
563 // Imaginary numbers. | |
564 %} | |
565 | |
566 {NUMBER}{Im} { | |
8535 | 567 LEXER_DEBUG ("{NUMBER}{Im}"); |
568 | |
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569 curr_lexer->handle_number (); |
4910 | 570 COUNT_TOK_AND_RETURN (IMAG_NUM); |
968 | 571 } |
572 | |
573 %{ | |
15466
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574 // Real numbers. Don't grab the '.' part of a dot operator as part of |
968 | 575 // the constant. |
576 %} | |
577 | |
8535 | 578 {D}+/\.[\*/\\^\'] | |
968 | 579 {NUMBER} { |
8535 | 580 LEXER_DEBUG ("{D}+/\\.[\\*/\\^\\']|{NUMBER}"); |
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581 curr_lexer->handle_number (); |
4910 | 582 COUNT_TOK_AND_RETURN (NUM); |
968 | 583 } |
584 | |
585 %{ | |
586 // Eat whitespace. Whitespace inside matrix constants is handled by | |
4208 | 587 // the <MATRIX_START> start state code above. |
968 | 588 %} |
589 | |
967 | 590 {S}* { |
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591 curr_lexer->current_input_column += yyleng; |
967 | 592 } |
593 | |
968 | 594 %{ |
595 // Continuation lines. Allow comments after continuations. | |
596 %} | |
597 | |
967 | 598 {CONT}{S}*{NL} | |
599 {CONT}{S}*{COMMENT} { | |
8535 | 600 LEXER_DEBUG ("{CONT}{S}*{NL}|{CONT}{S}*{COMMENT}"); |
601 | |
4037 | 602 if (yytext[0] == '\\') |
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603 curr_lexer->gripe_matlab_incompatible_continuation (); |
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604 curr_lexer->scan_for_comments (yytext); |
967 | 605 promptflag--; |
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606 curr_lexer->input_line_number++; |
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607 curr_lexer->current_input_column = 1; |
967 | 608 } |
1 | 609 |
968 | 610 %{ |
611 // End of file. | |
612 %} | |
613 | |
967 | 614 <<EOF>> { |
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615 return curr_lexer->handle_end_of_input (); |
967 | 616 } |
1 | 617 |
968 | 618 %{ |
970 | 619 // Identifiers. Truncate the token at the first space or tab but |
620 // don't write directly on yytext. | |
968 | 621 %} |
622 | |
967 | 623 {IDENT}{S}* { |
8535 | 624 LEXER_DEBUG ("{IDENT}{S}*"); |
625 | |
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626 int id_tok = curr_lexer->handle_identifier (); |
4238 | 627 |
628 if (id_tok >= 0) | |
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629 COUNT_TOK_AND_RETURN (id_tok); |
967 | 630 } |
1 | 631 |
968 | 632 %{ |
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633 // Superclass method identifiers. |
9476 | 634 %} |
635 | |
636 {IDENT}@{IDENT}{S}* | | |
637 {IDENT}@{IDENT}.{IDENT}{S}* { | |
638 LEXER_DEBUG ("{IDENT}@{IDENT}{S}*|{IDENT}@{IDENT}.{IDENT}{S}*"); | |
639 | |
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640 int id_tok = curr_lexer->handle_superclass_identifier (); |
9476 | 641 |
642 if (id_tok >= 0) | |
643 { | |
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644 curr_lexer->looking_for_object_index = true; |
9476 | 645 |
646 COUNT_TOK_AND_RETURN (SUPERCLASSREF); | |
647 } | |
648 } | |
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649 |
9476 | 650 %{ |
651 // Metaclass query | |
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652 %} |
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653 |
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654 \?{IDENT}{S}* | |
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655 \?{IDENT}\.{IDENT}{S}* { |
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656 LEXER_DEBUG ("\\?{IDENT}{S}*|\\?{IDENT}\\.{IDENT}{S}*"); |
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657 |
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658 int id_tok = curr_lexer->handle_meta_identifier (); |
9476 | 659 |
660 if (id_tok >= 0) | |
661 { | |
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662 curr_lexer->looking_for_object_index = true; |
9476 | 663 |
664 COUNT_TOK_AND_RETURN (METAQUERY); | |
665 } | |
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666 } |
9476 | 667 |
668 %{ | |
669 // Function handles and superclass references | |
4342 | 670 %} |
671 | |
4930 | 672 "@" { |
8535 | 673 LEXER_DEBUG ("@"); |
674 | |
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675 curr_lexer->current_input_column++; |
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676 |
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677 curr_lexer->quote_is_transpose = false; |
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678 curr_lexer->convert_spaces_to_comma = false; |
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679 curr_lexer->looking_at_function_handle++; |
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680 curr_lexer->looking_for_object_index = false; |
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681 curr_lexer->at_beginning_of_statement = false; |
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682 |
4930 | 683 COUNT_TOK_AND_RETURN ('@'); |
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684 |
4342 | 685 } |
686 | |
687 %{ | |
968 | 688 // A new line character. New line characters inside matrix constants |
4208 | 689 // are handled by the <MATRIX_START> start state code above. If closest |
985 | 690 // nesting is inside parentheses, don't return a row separator. |
968 | 691 %} |
692 | |
967 | 693 {NL} { |
8535 | 694 LEXER_DEBUG ("{NL}"); |
695 | |
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696 curr_lexer->input_line_number++; |
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697 curr_lexer->current_input_column = 1; |
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698 |
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699 curr_lexer->quote_is_transpose = false; |
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700 curr_lexer->convert_spaces_to_comma = true; |
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701 |
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702 if (curr_lexer->nesting_level.none ()) |
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703 { |
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704 curr_lexer->at_beginning_of_statement = true; |
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705 COUNT_TOK_AND_RETURN ('\n'); |
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706 } |
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707 else if (curr_lexer->nesting_level.is_paren ()) |
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708 { |
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709 curr_lexer->at_beginning_of_statement = false; |
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710 curr_lexer->gripe_matlab_incompatible ("bare newline inside parentheses"); |
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711 } |
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712 else if (curr_lexer->nesting_level.is_bracket_or_brace ()) |
985 | 713 return LEXICAL_ERROR; |
967 | 714 } |
1 | 715 |
968 | 716 %{ |
717 // Single quote can either be the beginning of a string or a transpose | |
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|
718 // operator. |
968 | 719 %} |
720 | |
967 | 721 "'" { |
8535 | 722 LEXER_DEBUG ("'"); |
723 | |
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724 curr_lexer->current_input_column++; |
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725 curr_lexer->convert_spaces_to_comma = true; |
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726 |
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727 if (curr_lexer->quote_is_transpose) |
967 | 728 { |
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729 curr_lexer->do_comma_insert_check (); |
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730 COUNT_TOK_AND_RETURN (QUOTE); |
967 | 731 } |
732 else | |
7722
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733 { |
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|
734 int tok = curr_lexer->handle_string ('\''); |
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735 COUNT_TOK_AND_RETURN (tok); |
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736 } |
967 | 737 } |
1 | 738 |
968 | 739 %{ |
971 | 740 // Double quotes always begin strings. |
741 %} | |
742 | |
973 | 743 \" { |
14642
6edd02858516
lex.ll: fix think-o in previous change
John W. Eaton <jwe@octave.org>
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|
744 LEXER_DEBUG ("\""); |
8535 | 745 |
16110
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|
746 curr_lexer->current_input_column++; |
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747 int tok = curr_lexer->handle_string ('"'); |
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748 |
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|
749 COUNT_TOK_AND_RETURN (tok); |
973 | 750 } |
971 | 751 |
752 %{ | |
8536
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lex.l: finish previous change
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753 // Gobble comments. |
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754 %} |
968 | 755 |
967 | 756 {CCHAR} { |
8535 | 757 LEXER_DEBUG ("{CCHAR}"); |
758 | |
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759 curr_lexer->looking_for_object_index = false; |
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|
760 |
16125
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allow xunput to be called without buffer argument
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|
761 curr_lexer->xunput (yytext[0]); |
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762 |
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763 bool eof = false; |
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764 int tok = curr_lexer->process_comment (false, eof); |
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765 |
7715
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|
766 if (eof) |
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767 return curr_lexer->handle_end_of_input (); |
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768 else if (tok > 0) |
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769 COUNT_TOK_AND_RETURN (tok); |
967 | 770 } |
440 | 771 |
968 | 772 %{ |
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773 // Block comments. |
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774 %} |
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775 |
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|
776 ^{S}*{CCHAR}\{{S}*{NL} { |
8535 | 777 LEXER_DEBUG ("^{S}*{CCHAR}\\{{S}*{NL}"); |
778 | |
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779 curr_lexer->looking_for_object_index = false; |
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780 |
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781 curr_lexer->input_line_number++; |
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782 curr_lexer->current_input_column = 1; |
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783 curr_lexer->block_comment_nesting_level++; |
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784 promptflag--; |
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|
785 |
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|
786 bool eof = false; |
16113
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|
787 curr_lexer->process_comment (true, eof); |
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788 } |
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789 |
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790 %{ |
968 | 791 // Other operators. |
792 %} | |
793 | |
8746
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794 ":" { LEXER_DEBUG (":"); BIN_OP_RETURN (':', false, false); } |
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795 |
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796 ".+" { LEXER_DEBUG (".+"); XBIN_OP_RETURN (EPLUS, false, false); } |
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797 ".-" { LEXER_DEBUG (".-"); XBIN_OP_RETURN (EMINUS, false, false); } |
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798 ".*" { LEXER_DEBUG (".*"); BIN_OP_RETURN (EMUL, false, false); } |
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799 "./" { LEXER_DEBUG ("./"); BIN_OP_RETURN (EDIV, false, false); } |
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800 ".\\" { LEXER_DEBUG (".\\"); BIN_OP_RETURN (ELEFTDIV, false, false); } |
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801 ".^" { LEXER_DEBUG (".^"); BIN_OP_RETURN (EPOW, false, false); } |
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802 ".**" { LEXER_DEBUG (".**"); XBIN_OP_RETURN (EPOW, false, false); } |
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803 ".'" { LEXER_DEBUG (".'"); curr_lexer->do_comma_insert_check (); BIN_OP_RETURN (TRANSPOSE, true, false); } |
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804 "++" { LEXER_DEBUG ("++"); curr_lexer->do_comma_insert_check (); XBIN_OP_RETURN_INTERNAL (PLUS_PLUS, true, false, true); } |
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805 "--" { LEXER_DEBUG ("--"); curr_lexer->do_comma_insert_check (); XBIN_OP_RETURN_INTERNAL (MINUS_MINUS, true, false, true); } |
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806 "<=" { LEXER_DEBUG ("<="); BIN_OP_RETURN (EXPR_LE, false, false); } |
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807 "==" { LEXER_DEBUG ("=="); BIN_OP_RETURN (EXPR_EQ, false, false); } |
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808 "~=" { LEXER_DEBUG ("~="); BIN_OP_RETURN (EXPR_NE, false, false); } |
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809 "!=" { LEXER_DEBUG ("!="); XBIN_OP_RETURN (EXPR_NE, false, false); } |
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810 ">=" { LEXER_DEBUG (">="); BIN_OP_RETURN (EXPR_GE, false, false); } |
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811 "&" { LEXER_DEBUG ("&"); BIN_OP_RETURN (EXPR_AND, false, false); } |
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812 "|" { LEXER_DEBUG ("|"); BIN_OP_RETURN (EXPR_OR, false, false); } |
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813 "<" { LEXER_DEBUG ("<"); BIN_OP_RETURN (EXPR_LT, false, false); } |
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814 ">" { LEXER_DEBUG (">"); BIN_OP_RETURN (EXPR_GT, false, false); } |
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815 "+" { LEXER_DEBUG ("+"); BIN_OP_RETURN ('+', false, false); } |
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816 "-" { LEXER_DEBUG ("-"); BIN_OP_RETURN ('-', false, false); } |
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817 "*" { LEXER_DEBUG ("*"); BIN_OP_RETURN ('*', false, false); } |
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818 "/" { LEXER_DEBUG ("/"); BIN_OP_RETURN ('/', false, false); } |
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819 "\\" { LEXER_DEBUG ("\\"); BIN_OP_RETURN (LEFTDIV, false, false); } |
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820 ";" { LEXER_DEBUG (";"); BIN_OP_RETURN (';', true, true); } |
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821 "," { LEXER_DEBUG (","); BIN_OP_RETURN (',', true, ! curr_lexer->looking_at_object_index.front ()); } |
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822 "^" { LEXER_DEBUG ("^"); BIN_OP_RETURN (POW, false, false); } |
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823 "**" { LEXER_DEBUG ("**"); XBIN_OP_RETURN (POW, false, false); } |
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824 "=" { LEXER_DEBUG ("="); BIN_OP_RETURN ('=', true, false); } |
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825 "&&" { LEXER_DEBUG ("&&"); BIN_OP_RETURN (EXPR_AND_AND, false, false); } |
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826 "||" { LEXER_DEBUG ("||"); BIN_OP_RETURN (EXPR_OR_OR, false, false); } |
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827 "<<" { LEXER_DEBUG ("<<"); XBIN_OP_RETURN (LSHIFT, false, false); } |
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828 ">>" { LEXER_DEBUG (">>"); XBIN_OP_RETURN (RSHIFT, false, false); } |
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829 |
967 | 830 {NOT} { |
8535 | 831 LEXER_DEBUG ("{NOT}"); |
832 | |
4037 | 833 if (yytext[0] == '~') |
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834 BIN_OP_RETURN (EXPR_NOT, false, false); |
4037 | 835 else |
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836 XBIN_OP_RETURN (EXPR_NOT, false, false); |
967 | 837 } |
1 | 838 |
967 | 839 "(" { |
8535 | 840 LEXER_DEBUG ("("); |
841 | |
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842 // If we are looking for an object index, then push TRUE for |
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843 // looking_at_object_index. Otherwise, just push whatever state |
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844 // is current (so that we can pop it off the stack when we find |
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845 // the matching close paren). |
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846 |
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847 curr_lexer->looking_at_object_index.push_front |
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848 (curr_lexer->looking_for_object_index); |
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849 |
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850 curr_lexer->looking_at_indirect_ref = false; |
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851 curr_lexer->looking_for_object_index = false; |
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852 curr_lexer->at_beginning_of_statement = false; |
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853 |
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854 curr_lexer->nesting_level.paren (); |
985 | 855 promptflag--; |
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856 |
967 | 857 TOK_RETURN ('('); |
858 } | |
859 | |
860 ")" { | |
8535 | 861 LEXER_DEBUG (")"); |
862 | |
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863 curr_lexer->nesting_level.remove (); |
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864 curr_lexer->current_input_column++; |
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865 |
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866 curr_lexer->looking_at_object_index.pop_front (); |
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867 |
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868 curr_lexer->quote_is_transpose = true; |
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869 curr_lexer->convert_spaces_to_comma |
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870 = (curr_lexer->nesting_level.is_bracket_or_brace () |
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871 && ! curr_lexer->looking_at_anon_fcn_args); |
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872 curr_lexer->looking_for_object_index = true; |
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873 curr_lexer->at_beginning_of_statement = false; |
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874 |
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875 if (curr_lexer->looking_at_anon_fcn_args) |
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876 curr_lexer->looking_at_anon_fcn_args = false; |
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877 |
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878 curr_lexer->do_comma_insert_check (); |
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879 |
4910 | 880 COUNT_TOK_AND_RETURN (')'); |
967 | 881 } |
882 | |
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883 "." { |
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884 LEXER_DEBUG ("."); |
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885 |
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886 curr_lexer->looking_for_object_index = false; |
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887 curr_lexer->at_beginning_of_statement = false; |
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888 |
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889 TOK_RETURN ('.'); |
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890 } |
8535 | 891 |
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892 "+=" { LEXER_DEBUG ("+="); XBIN_OP_RETURN (ADD_EQ, false, false); } |
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893 "-=" { LEXER_DEBUG ("-="); XBIN_OP_RETURN (SUB_EQ, false, false); } |
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894 "*=" { LEXER_DEBUG ("*="); XBIN_OP_RETURN (MUL_EQ, false, false); } |
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895 "/=" { LEXER_DEBUG ("/="); XBIN_OP_RETURN (DIV_EQ, false, false); } |
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896 "\\=" { LEXER_DEBUG ("\\="); XBIN_OP_RETURN (LEFTDIV_EQ, false, false); } |
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897 ".+=" { LEXER_DEBUG (".+="); XBIN_OP_RETURN (ADD_EQ, false, false); } |
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898 ".-=" { LEXER_DEBUG (".-="); XBIN_OP_RETURN (SUB_EQ, false, false); } |
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899 ".*=" { LEXER_DEBUG (".*="); XBIN_OP_RETURN (EMUL_EQ, false, false); } |
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900 "./=" { LEXER_DEBUG ("./="); XBIN_OP_RETURN (EDIV_EQ, false, false); } |
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901 ".\\=" { LEXER_DEBUG (".\\="); XBIN_OP_RETURN (ELEFTDIV_EQ, false, false); } |
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902 {POW}= { LEXER_DEBUG ("{POW}="); XBIN_OP_RETURN (POW_EQ, false, false); } |
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903 {EPOW}= { LEXER_DEBUG ("{EPOW}="); XBIN_OP_RETURN (EPOW_EQ, false, false); } |
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904 "&=" { LEXER_DEBUG ("&="); XBIN_OP_RETURN (AND_EQ, false, false); } |
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905 "|=" { LEXER_DEBUG ("|="); XBIN_OP_RETURN (OR_EQ, false, false); } |
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906 "<<=" { LEXER_DEBUG ("<<="); XBIN_OP_RETURN (LSHIFT_EQ, false, false); } |
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907 ">>=" { LEXER_DEBUG (">>="); XBIN_OP_RETURN (RSHIFT_EQ, false, false); } |
2877 | 908 |
4608 | 909 \{{S}* { |
8535 | 910 LEXER_DEBUG ("\\{{S}*"); |
911 | |
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912 curr_lexer->nesting_level.brace (); |
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913 |
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914 curr_lexer->looking_at_object_index.push_front |
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915 (curr_lexer->looking_for_object_index); |
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916 |
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917 curr_lexer->current_input_column += yyleng; |
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918 curr_lexer->quote_is_transpose = false; |
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919 curr_lexer->convert_spaces_to_comma = true; |
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920 curr_lexer->looking_for_object_index = false; |
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921 curr_lexer->at_beginning_of_statement = false; |
4608 | 922 |
3351 | 923 promptflag--; |
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924 curr_lexer->eat_whitespace (); |
4608 | 925 |
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926 curr_lexer->braceflag++; |
4608 | 927 BEGIN (MATRIX_START); |
4910 | 928 COUNT_TOK_AND_RETURN ('{'); |
3351 | 929 } |
930 | |
931 "}" { | |
8535 | 932 LEXER_DEBUG ("}"); |
933 | |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
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diff
changeset
|
934 curr_lexer->looking_at_object_index.pop_front (); |
7302f8a4df83
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diff
changeset
|
935 |
7302f8a4df83
use pointer for global lexical_feedback structure
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diff
changeset
|
936 curr_lexer->looking_for_object_index = true; |
7302f8a4df83
use pointer for global lexical_feedback structure
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diff
changeset
|
937 curr_lexer->at_beginning_of_statement = false; |
7302f8a4df83
use pointer for global lexical_feedback structure
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diff
changeset
|
938 |
7302f8a4df83
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diff
changeset
|
939 curr_lexer->nesting_level.remove (); |
3351 | 940 |
4608 | 941 TOK_RETURN ('}'); |
3351 | 942 } |
943 | |
968 | 944 %{ |
2066 | 945 // Unrecognized input is a lexical error. |
968 | 946 %} |
1 | 947 |
2042 | 948 . { |
8535 | 949 LEXER_DEBUG ("."); |
950 | |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
951 curr_lexer->xunput (yytext[0]); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
952 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
953 int c = curr_lexer->text_yyinput (); |
4248 | 954 |
955 if (c != EOF) | |
4240 | 956 { |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
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diff
changeset
|
957 curr_lexer->current_input_column++; |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
958 |
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
|
959 error ("invalid character '%s' (ASCII %d) near line %d, column %d", |
10315
57a59eae83cc
untabify src C++ source files
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diff
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|
960 undo_string_escape (static_cast<char> (c)), c, |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
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diff
changeset
|
961 curr_lexer->input_line_number, curr_lexer->current_input_column); |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
962 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
963 return LEXICAL_ERROR; |
4240 | 964 } |
965 else | |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
966 return curr_lexer->handle_end_of_input (); |
2066 | 967 } |
1 | 968 |
969 %% | |
970 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
971 static void |
8535 | 972 display_character (char c) |
973 { | |
974 if (isgraph (c)) | |
975 std::cerr << c; | |
976 else | |
977 switch (c) | |
978 { | |
979 case 0: | |
10315
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
980 std::cerr << "NUL"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
981 break; |
8535 | 982 |
983 case 1: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
984 std::cerr << "SOH"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
985 break; |
8535 | 986 |
987 case 2: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
988 std::cerr << "STX"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
989 break; |
8535 | 990 |
991 case 3: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
992 std::cerr << "ETX"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
993 break; |
8535 | 994 |
995 case 4: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
996 std::cerr << "EOT"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
997 break; |
8535 | 998 |
999 case 5: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1000 std::cerr << "ENQ"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1001 break; |
8535 | 1002 |
1003 case 6: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1004 std::cerr << "ACK"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1005 break; |
8535 | 1006 |
1007 case 7: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1008 std::cerr << "\\a"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1009 break; |
8535 | 1010 |
1011 case 8: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1012 std::cerr << "\\b"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1013 break; |
8535 | 1014 |
1015 case 9: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1016 std::cerr << "\\t"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1017 break; |
8535 | 1018 |
1019 case 10: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1020 std::cerr << "\\n"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1021 break; |
8535 | 1022 |
1023 case 11: | |
10315
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
1024 std::cerr << "\\v"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1025 break; |
8535 | 1026 |
1027 case 12: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1028 std::cerr << "\\f"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1029 break; |
8535 | 1030 |
1031 case 13: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1032 std::cerr << "\\r"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1033 break; |
8535 | 1034 |
1035 case 14: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1036 std::cerr << "SO"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1037 break; |
8535 | 1038 |
1039 case 15: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1040 std::cerr << "SI"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1041 break; |
8535 | 1042 |
1043 case 16: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1044 std::cerr << "DLE"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1045 break; |
8535 | 1046 |
1047 case 17: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1048 std::cerr << "DC1"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1049 break; |
8535 | 1050 |
1051 case 18: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1052 std::cerr << "DC2"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1053 break; |
8535 | 1054 |
1055 case 19: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1056 std::cerr << "DC3"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1057 break; |
8535 | 1058 |
1059 case 20: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1060 std::cerr << "DC4"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1061 break; |
8535 | 1062 |
1063 case 21: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1064 std::cerr << "NAK"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1065 break; |
8535 | 1066 |
1067 case 22: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1068 std::cerr << "SYN"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1069 break; |
8535 | 1070 |
1071 case 23: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1072 std::cerr << "ETB"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1073 break; |
8535 | 1074 |
1075 case 24: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1076 std::cerr << "CAN"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1077 break; |
8535 | 1078 |
1079 case 25: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1080 std::cerr << "EM"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1081 break; |
8535 | 1082 |
1083 case 26: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1084 std::cerr << "SUB"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1085 break; |
8535 | 1086 |
1087 case 27: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1088 std::cerr << "ESC"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1089 break; |
8535 | 1090 |
1091 case 28: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1092 std::cerr << "FS"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1093 break; |
8535 | 1094 |
1095 case 29: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1096 std::cerr << "GS"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1097 break; |
8535 | 1098 |
1099 case 30: | |
10315
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
1100 std::cerr << "RS"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1101 break; |
8535 | 1102 |
1103 case 31: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1104 std::cerr << "US"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
1105 break; |
8535 | 1106 |
1107 case 32: | |
10315
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
1108 std::cerr << "SPACE"; |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
1109 break; |
8535 | 1110 |
1111 case 127: | |
10315
57a59eae83cc
untabify src C++ source files
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parents:
10182
diff
changeset
|
1112 std::cerr << "DEL"; |
57a59eae83cc
untabify src C++ source files
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parents:
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diff
changeset
|
1113 break; |
8535 | 1114 } |
1115 } | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1116 |
13973
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1117 void |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
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13260
diff
changeset
|
1118 cleanup_parser (void) |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1119 { |
1 | 1120 } |
1121 | |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
1122 // Return 1 if the given character matches any character in the given |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1123 // string. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1124 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1125 static bool |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
1126 match_any (char c, const char *s) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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16113
diff
changeset
|
1127 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
1128 char tmp; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1129 while ((tmp = *s++) != '\0') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1130 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
1131 if (c == tmp) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1132 return true; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1133 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1134 return false; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1135 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
1136 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
1137 // Given information about the spacing surrounding an operator, |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1138 // return 1 if it looks like it should be treated as a binary |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1139 // operator. For example, |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1140 // |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1141 // [ 1 + 2 ] or [ 1+ 2] or [ 1+2 ] ==> binary |
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1142 // |
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1143 // [ 1 +2 ] ==> unary |
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1144 |
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|
1145 static bool |
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1146 looks_like_bin_op (bool spc_prev, int next_char) |
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1147 { |
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1148 bool spc_next = (next_char == ' ' || next_char == '\t'); |
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|
1149 |
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1150 return ((spc_prev && spc_next) || ! spc_prev); |
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1151 } |
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|
1152 |
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* lex.ll: Reorder function definitions.
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|
1153 bool |
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* lex.ll: Reorder function definitions.
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1154 is_keyword (const std::string& s) |
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|
1155 { |
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|
1156 // Parsing function names like "set.property_name" inside |
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1157 // classdef-style class definitions is simplified by handling the |
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* lex.ll: Reorder function definitions.
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1158 // "set" and "get" portions of the names using the same mechanism as |
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* lex.ll: Reorder function definitions.
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1159 // is used for keywords. However, they are not really keywords in |
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1160 // the language, so omit them from the list of possible keywords. |
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1161 |
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1162 return (octave_kw_hash::in_word_set (s.c_str (), s.length ()) != 0 |
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1163 && ! (s == "set" || s == "get")); |
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|
1164 } |
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|
1165 |
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1166 DEFUN (iskeyword, args, , |
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1167 "-*- texinfo -*-\n\ |
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1168 @deftypefn {Built-in Function} {} iskeyword ()\n\ |
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1169 @deftypefnx {Built-in Function} {} iskeyword (@var{name})\n\ |
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1170 Return true if @var{name} is an Octave keyword. If @var{name}\n\ |
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1171 is omitted, return a list of keywords.\n\ |
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1172 @seealso{isvarname, exist}\n\ |
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1173 @end deftypefn") |
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|
1174 { |
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1175 octave_value retval; |
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* lex.ll: Reorder function definitions.
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1176 |
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1177 int argc = args.length () + 1; |
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|
1178 |
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1179 string_vector argv = args.make_argv ("iskeyword"); |
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|
1180 |
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|
1181 if (error_state) |
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1182 return retval; |
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|
1183 |
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1184 if (argc == 1) |
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1185 { |
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1186 // Neither set and get are keywords. See the note in the |
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* lex.ll: Reorder function definitions.
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1187 // is_keyword function for additional details. |
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|
1188 |
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1189 string_vector lst (TOTAL_KEYWORDS); |
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|
1190 |
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|
1191 int j = 0; |
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1192 |
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1193 for (int i = 0; i < TOTAL_KEYWORDS; i++) |
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1194 { |
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1195 std::string tmp = wordlist[i].name; |
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1196 |
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1197 if (! (tmp == "set" || tmp == "get")) |
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|
1198 lst[j++] = tmp; |
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|
1199 } |
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|
1200 |
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|
1201 lst.resize (j); |
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* lex.ll: Reorder function definitions.
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|
1202 |
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|
1203 retval = Cell (lst.sort ()); |
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1204 } |
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|
1205 else if (argc == 2) |
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* lex.ll: Reorder function definitions.
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|
1206 { |
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* lex.ll: Reorder function definitions.
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|
1207 retval = is_keyword (argv[1]); |
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|
1208 } |
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* lex.ll: Reorder function definitions.
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|
1209 else |
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|
1210 print_usage (); |
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|
1211 |
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|
1212 return retval; |
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|
1213 } |
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* lex.ll: Reorder function definitions.
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|
1214 |
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* lex.ll: Reorder function definitions.
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|
1215 /* |
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|
1216 |
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|
1217 %!assert (iskeyword ("for")) |
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|
1218 %!assert (iskeyword ("fort"), false) |
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1219 %!assert (iskeyword ("fft"), false) |
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|
1220 |
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* lex.ll: Reorder function definitions.
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|
1221 */ |
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* lex.ll: Reorder function definitions.
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|
1222 |
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|
1223 // Used to delete trailing white space from tokens. |
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* lex.ll: Reorder function definitions.
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|
1224 |
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* lex.ll: Reorder function definitions.
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|
1225 static std::string |
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* lex.ll: Reorder function definitions.
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|
1226 strip_trailing_whitespace (char *s) |
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|
1227 { |
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|
1228 std::string retval = s; |
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|
1229 |
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|
1230 size_t pos = retval.find_first_of (" \t"); |
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|
1231 |
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|
1232 if (pos != std::string::npos) |
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|
1233 retval.resize (pos); |
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|
1234 |
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|
1235 return retval; |
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|
1236 } |
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|
1237 |
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|
1238 DEFUN (__display_tokens__, args, nargout, |
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|
1239 "-*- texinfo -*-\n\ |
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|
1240 @deftypefn {Built-in Function} {} __display_tokens__ ()\n\ |
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|
1241 Query or set the internal variable that determines whether Octave's\n\ |
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|
1242 lexer displays tokens as they are read.\n\ |
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|
1243 @end deftypefn") |
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|
1244 { |
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|
1245 return SET_INTERNAL_VARIABLE (display_tokens); |
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|
1246 } |
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|
1247 |
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|
1248 DEFUN (__token_count__, , , |
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|
1249 "-*- texinfo -*-\n\ |
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|
1250 @deftypefn {Built-in Function} {} __token_count__ ()\n\ |
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|
1251 Number of language tokens processed since Octave startup.\n\ |
73a21ade0b6b
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|
1252 @end deftypefn") |
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|
1253 { |
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|
1254 return octave_value (Vtoken_count); |
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|
1255 } |
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|
1256 |
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|
1257 DEFUN (__lexer_debug_flag__, args, nargout, |
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|
1258 "-*- texinfo -*-\n\ |
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|
1259 @deftypefn {Built-in Function} {@var{old_val} =} __lexer_debug_flag__ (@var{new_val}))\n\ |
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|
1260 Undocumented internal function.\n\ |
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changeset
|
1261 @end deftypefn") |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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diff
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|
1262 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1263 octave_value retval; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1264 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1265 retval = set_internal_variable (lexer_debug_flag, args, nargout, |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1266 "__lexer_debug_flag__"); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1267 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1268 return retval; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1269 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1270 |
16117
771186909285
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parents:
16116
diff
changeset
|
1271 class |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1272 flex_stream_reader : public stream_reader |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1273 { |
771186909285
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John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1274 public: |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1275 flex_stream_reader (octave_lexer *l, char *buf_arg) |
16117
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John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1276 : stream_reader (), lexer (l), buf (buf_arg) |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
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16116
diff
changeset
|
1277 { } |
771186909285
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John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1278 |
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1279 int getc (void) { return lexer->text_yyinput (); } |
771186909285
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John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1280 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
|
1281 |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
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16116
diff
changeset
|
1282 private: |
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John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1283 |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1284 // No copying! |
771186909285
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John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1285 |
771186909285
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John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1286 flex_stream_reader (const flex_stream_reader&); |
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maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1287 |
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John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1288 flex_stream_reader& operator = (const flex_stream_reader&); |
771186909285
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John W. Eaton <jwe@octave.org>
parents:
16116
diff
changeset
|
1289 |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1290 octave_lexer *lexer; |
16117
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diff
changeset
|
1291 |
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parents:
16116
diff
changeset
|
1292 char *buf; |
771186909285
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parents:
16116
diff
changeset
|
1293 }; |
771186909285
maint: move class definition in lex.ll
John W. Eaton <jwe@octave.org>
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16116
diff
changeset
|
1294 |
16193
d7392bf42fd1
use inheritance to simplify initialization in octave_lexer constructor
John W. Eaton <jwe@octave.org>
parents:
16183
diff
changeset
|
1295 lexical_feedback::~lexical_feedback (void) |
d7392bf42fd1
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John W. Eaton <jwe@octave.org>
parents:
16183
diff
changeset
|
1296 { |
16194
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1297 reset_token_stack (); |
b7ca669af528
reset lexical_feedback state before starting a new parse
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parents:
16193
diff
changeset
|
1298 } |
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John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1299 |
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1300 void |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
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16193
diff
changeset
|
1301 lexical_feedback::init (void) |
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reset lexical_feedback state before starting a new parse
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parents:
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diff
changeset
|
1302 { |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1303 // The closest paren, brace, or bracket nesting is not an object |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1304 // index. |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1305 looking_at_object_index.push_front (false); |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1306 } |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1307 |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1308 void |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1309 lexical_feedback::reset (void) |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
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16193
diff
changeset
|
1310 { |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1311 end_of_input = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1312 convert_spaces_to_comma = true; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1313 do_comma_insert = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1314 at_beginning_of_statement = true; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1315 looking_at_anon_fcn_args = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1316 looking_at_return_list = false; |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1317 looking_at_parameter_list = false; |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1318 looking_at_decl_list = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1319 looking_at_initializer_expression = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1320 looking_at_matrix_or_assign_lhs = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1321 looking_for_object_index = false; |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
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16193
diff
changeset
|
1322 looking_at_indirect_ref = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1323 parsing_class_method = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1324 maybe_classdef_get_set_method = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1325 parsing_classdef = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1326 quote_is_transpose = false; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1327 force_script = false; |
16199
810a71122c25
move more global variables to octave_lexical_feedback class
John W. Eaton <jwe@octave.org>
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16195
diff
changeset
|
1328 reading_fcn_file = false; |
810a71122c25
move more global variables to octave_lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16195
diff
changeset
|
1329 reading_script_file = false; |
810a71122c25
move more global variables to octave_lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16195
diff
changeset
|
1330 reading_classdef_file = false; |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1331 input_line_number = 1; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1332 current_input_column = 1; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1333 bracketflag = 0; |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1334 braceflag = 0; |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1335 looping = 0; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1336 defining_func = 0; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
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16193
diff
changeset
|
1337 looking_at_function_handle = 0; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1338 block_comment_nesting_level = 0; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1339 token_count = 0; |
16207
0467d68ca891
move current_input_line to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16203
diff
changeset
|
1340 current_input_line = ""; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1341 help_text = ""; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1342 fcn_file_name = ""; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1343 fcn_file_full_name = ""; |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1344 looking_at_object_index.clear (); |
b7ca669af528
reset lexical_feedback state before starting a new parse
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16193
diff
changeset
|
1345 looking_at_object_index.push_front (false); |
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reset lexical_feedback state before starting a new parse
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16193
diff
changeset
|
1346 |
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16193
diff
changeset
|
1347 while (! parsed_function_name.empty ()) |
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reset lexical_feedback state before starting a new parse
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diff
changeset
|
1348 parsed_function_name.pop (); |
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16193
diff
changeset
|
1349 |
b7ca669af528
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1350 pending_local_variables.clear (); |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
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16193
diff
changeset
|
1351 |
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John W. Eaton <jwe@octave.org>
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16193
diff
changeset
|
1352 nesting_level.reset (); |
b7ca669af528
reset lexical_feedback state before starting a new parse
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diff
changeset
|
1353 |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
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changeset
|
1354 reset_token_stack (); |
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reset lexical_feedback state before starting a new parse
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16193
diff
changeset
|
1355 } |
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John W. Eaton <jwe@octave.org>
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16193
diff
changeset
|
1356 |
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diff
changeset
|
1357 void |
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16193
diff
changeset
|
1358 lexical_feedback::reset_token_stack (void) |
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reset lexical_feedback state before starting a new parse
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16193
diff
changeset
|
1359 { |
16193
d7392bf42fd1
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John W. Eaton <jwe@octave.org>
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16183
diff
changeset
|
1360 // Clear out the stack of token info used to track line and |
d7392bf42fd1
use inheritance to simplify initialization in octave_lexer constructor
John W. Eaton <jwe@octave.org>
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16183
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changeset
|
1361 // column numbers. |
d7392bf42fd1
use inheritance to simplify initialization in octave_lexer constructor
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16183
diff
changeset
|
1362 |
d7392bf42fd1
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1363 while (! token_stack.empty ()) |
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changeset
|
1364 { |
d7392bf42fd1
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1365 delete token_stack.top (); |
d7392bf42fd1
use inheritance to simplify initialization in octave_lexer constructor
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diff
changeset
|
1366 token_stack.pop (); |
d7392bf42fd1
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16183
diff
changeset
|
1367 } |
d7392bf42fd1
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16183
diff
changeset
|
1368 } |
d7392bf42fd1
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16183
diff
changeset
|
1369 |
d7392bf42fd1
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John W. Eaton <jwe@octave.org>
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16183
diff
changeset
|
1370 void |
16195
b52d2f9294b6
use class for reading lexer input
John W. Eaton <jwe@octave.org>
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16194
diff
changeset
|
1371 octave_lexer::input_buffer::fill (const std::string& input, bool eof_arg) |
16183
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changeset
|
1372 { |
16195
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16194
diff
changeset
|
1373 buffer = input; |
16183
359d56094efa
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16166
diff
changeset
|
1374 chars_left = buffer.length (); |
359d56094efa
handle lexer input buffering with class
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diff
changeset
|
1375 pos = buffer.c_str (); |
16195
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16194
diff
changeset
|
1376 eof = eof_arg; |
16183
359d56094efa
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16166
diff
changeset
|
1377 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1378 |
359d56094efa
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1379 int |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
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changeset
|
1380 octave_lexer::input_buffer::copy_chunk (char *buf, size_t max_size) |
359d56094efa
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changeset
|
1381 { |
359d56094efa
handle lexer input buffering with class
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16166
diff
changeset
|
1382 static const char * const eol = "\n"; |
359d56094efa
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diff
changeset
|
1383 |
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|
1384 size_t len = max_size > chars_left ? chars_left : max_size; |
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|
1385 assert (len > 0); |
359d56094efa
handle lexer input buffering with class
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|
1386 |
359d56094efa
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|
1387 memcpy (buf, pos, len); |
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handle lexer input buffering with class
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|
1388 |
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|
1389 chars_left -= len; |
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handle lexer input buffering with class
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diff
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|
1390 pos += len; |
359d56094efa
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|
1391 |
359d56094efa
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1392 // Make sure input ends with a new line character. |
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handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1393 if (chars_left == 0 && buf[len-1] != '\n') |
359d56094efa
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16166
diff
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|
1394 { |
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diff
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|
1395 if (len < max_size) |
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parents:
16166
diff
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|
1396 { |
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parents:
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diff
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|
1397 // There is enough room to plug the newline character in |
359d56094efa
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diff
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|
1398 // the buffer. |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
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|
1399 buf[len++] = '\n'; |
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diff
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|
1400 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
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diff
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|
1401 else |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1402 { |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1403 // There isn't enough room to plug the newline character |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1404 // in the buffer so arrange to have it returned on the next |
16195
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use class for reading lexer input
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diff
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|
1405 // call to octave_lexer::read. |
16183
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|
1406 pos = eol; |
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handle lexer input buffering with class
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diff
changeset
|
1407 chars_left = 1; |
359d56094efa
handle lexer input buffering with class
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|
1408 } |
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handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
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|
1409 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
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diff
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|
1410 |
359d56094efa
handle lexer input buffering with class
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diff
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|
1411 return len; |
359d56094efa
handle lexer input buffering with class
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diff
changeset
|
1412 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1413 |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
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|
1414 octave_lexer::~octave_lexer (void) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
1415 { |
16149
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use pure parser and reentrant lexer interfaces
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|
1416 yylex_destroy (scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
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|
1417 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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16113
diff
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|
1418 |
16123
a484e39d1f22
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|
1419 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
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diff
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|
1420 octave_lexer::init (void) |
16149
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|
1421 { |
49dfba4fd3c5
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diff
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|
1422 yylex_init (&scanner); |
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use pure parser and reentrant lexer interfaces
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|
1423 |
16158
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rename lexical_feedback to octave_lexer
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|
1424 // Make octave_lexer object available through yyextra in |
16149
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use pure parser and reentrant lexer interfaces
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|
1425 // flex-generated lexer. |
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use pure parser and reentrant lexer interfaces
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|
1426 yyset_extra (this, scanner); |
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use pure parser and reentrant lexer interfaces
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|
1427 } |
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16148
diff
changeset
|
1428 |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
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16148
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changeset
|
1429 // Inside Flex-generated functions, yyg is the scanner cast to its real |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
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16148
diff
changeset
|
1430 // type. The BEGIN macro uses yyg and we want to use that in |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
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16154
diff
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|
1431 // octave_lexer member functions. If we could set the start state |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
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16148
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changeset
|
1432 // by calling a function instead of using the BEGIN macro, we could |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
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16148
diff
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|
1433 // eliminate the OCTAVE_YYG macro. |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
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16148
diff
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|
1434 |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
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16148
diff
changeset
|
1435 #define OCTAVE_YYG \ |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
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16148
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|
1436 struct yyguts_t *yyg = static_cast<struct yyguts_t*> (scanner) |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
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diff
changeset
|
1437 |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
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16148
diff
changeset
|
1438 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1439 octave_lexer::reset (void) |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
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16122
diff
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|
1440 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
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diff
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|
1441 OCTAVE_YYG; |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
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diff
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|
1442 |
16123
a484e39d1f22
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John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1443 // Start off on the right foot. |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
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16122
diff
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|
1444 BEGIN (INITIAL); |
a484e39d1f22
maint: move function definition in lex.ll
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16122
diff
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|
1445 |
a484e39d1f22
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John W. Eaton <jwe@octave.org>
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16122
diff
changeset
|
1446 parser_symtab_context.clear (); |
a484e39d1f22
maint: move function definition in lex.ll
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16122
diff
changeset
|
1447 |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1448 // We do want a prompt by default. |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
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16122
diff
changeset
|
1449 promptflag = 1; |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1450 |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1451 // Only ask for input from stdin if we are expecting interactive |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
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16122
diff
changeset
|
1452 // input. |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1453 |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1454 if (! quitting_gracefully |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1455 && (interactive || forced_interactive) |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1456 && ! (reading_fcn_file |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1457 || reading_classdef_file |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1458 || reading_script_file |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1459 || input_from_eval_string ())) |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
1460 yyrestart (stdin, scanner); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1461 |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
1462 lexical_feedback::reset (); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1463 } |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
1464 |
16124
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
1465 void |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1466 octave_lexer::prep_for_file (void) |
16124
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
1467 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
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changeset
|
1468 OCTAVE_YYG; |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
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16148
diff
changeset
|
1469 |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1470 reading_script_file = true; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1471 |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
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16199
diff
changeset
|
1472 BEGIN (INPUT_FILE_BEGIN); |
16124
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
1473 } |
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
1474 |
16121
bdf365c5c9bf
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16120
diff
changeset
|
1475 int |
16195
b52d2f9294b6
use class for reading lexer input
John W. Eaton <jwe@octave.org>
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16194
diff
changeset
|
1476 octave_lexer::read (char *buf, unsigned max_size) |
16121
bdf365c5c9bf
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
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16120
diff
changeset
|
1477 { |
bdf365c5c9bf
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
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16120
diff
changeset
|
1478 int status = 0; |
bdf365c5c9bf
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16120
diff
changeset
|
1479 |
16183
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16166
diff
changeset
|
1480 if (input_buf.empty ()) |
16195
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use class for reading lexer input
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16194
diff
changeset
|
1481 { |
b52d2f9294b6
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16194
diff
changeset
|
1482 bool eof = false; |
16207
0467d68ca891
move current_input_line to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16203
diff
changeset
|
1483 current_input_line = input_reader.get_input (eof); |
0467d68ca891
move current_input_line to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16203
diff
changeset
|
1484 input_buf.fill (current_input_line, eof); |
16195
b52d2f9294b6
use class for reading lexer input
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16194
diff
changeset
|
1485 } |
16183
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16166
diff
changeset
|
1486 |
359d56094efa
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16166
diff
changeset
|
1487 if (! input_buf.empty ()) |
359d56094efa
handle lexer input buffering with class
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changeset
|
1488 status = input_buf.copy_chunk (buf, max_size); |
16121
bdf365c5c9bf
maint: move function definition in lex.ll
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16120
diff
changeset
|
1489 else |
bdf365c5c9bf
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John W. Eaton <jwe@octave.org>
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16120
diff
changeset
|
1490 { |
bdf365c5c9bf
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
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16120
diff
changeset
|
1491 status = YY_NULL; |
bdf365c5c9bf
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16120
diff
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|
1492 |
16183
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
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16166
diff
changeset
|
1493 if (! input_buf.at_eof ()) |
16195
b52d2f9294b6
use class for reading lexer input
John W. Eaton <jwe@octave.org>
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16194
diff
changeset
|
1494 fatal_error ("octave_lexer::read () in flex scanner failed"); |
16121
bdf365c5c9bf
maint: move function definition in lex.ll
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16120
diff
changeset
|
1495 } |
bdf365c5c9bf
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
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16120
diff
changeset
|
1496 |
bdf365c5c9bf
maint: move function definition in lex.ll
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16120
diff
changeset
|
1497 return status; |
bdf365c5c9bf
maint: move function definition in lex.ll
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16120
diff
changeset
|
1498 } |
bdf365c5c9bf
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
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16120
diff
changeset
|
1499 |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
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16158
diff
changeset
|
1500 int |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
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16158
diff
changeset
|
1501 octave_lexer::handle_end_of_input (void) |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
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16158
diff
changeset
|
1502 { |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
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16158
diff
changeset
|
1503 // FIXME -- we need this because of the way TOK_RETURN is defined. DO |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
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16158
diff
changeset
|
1504 // something better than that... |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
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16158
diff
changeset
|
1505 OCTAVE_YYG; |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1506 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1507 LEXER_DEBUG ("<<EOF>>"); |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1508 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1509 if (block_comment_nesting_level != 0) |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1510 { |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1511 warning ("block comment open at end of input"); |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1512 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1513 if ((reading_fcn_file || reading_script_file || reading_classdef_file) |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1514 && ! fcn_file_name.empty ()) |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1515 warning ("near line %d of file '%s.m'", |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1516 input_line_number, fcn_file_name.c_str ()); |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1517 } |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1518 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1519 TOK_RETURN (END_OF_INPUT); |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1520 } |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1521 |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
1522 char * |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1523 octave_lexer::flex_yytext (void) |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
1524 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
1525 return yyget_text (scanner); |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
1526 } |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
1527 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
1528 int |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1529 octave_lexer::flex_yyleng (void) |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
1530 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
1531 return yyget_leng (scanner); |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
1532 } |
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
1533 |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1534 // GAG. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1535 // |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1536 // 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
|
1537 // that we insert a comma ahead of it. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1538 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1539 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1540 octave_lexer::do_comma_insert_check (void) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1541 { |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1542 bool spc_gobbled = (eat_continuation () != octave_lexer::NO_WHITESPACE); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1543 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1544 int c = text_yyinput (); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1545 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
1546 xunput (c); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1547 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1548 if (spc_gobbled) |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
1549 xunput (' '); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1550 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1551 do_comma_insert = (! looking_at_object_index.front () |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1552 && bracketflag && c == '['); |
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 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1555 int |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1556 octave_lexer::text_yyinput (void) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1557 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
1558 int c = yyinput (scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1559 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1560 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1561 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1562 std::cerr << "I: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1563 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1564 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1565 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1566 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1567 // 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
|
1568 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1569 if (c == '\r') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1570 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
1571 c = yyinput (scanner); |
16114
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 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1574 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1575 std::cerr << "I: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1576 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1577 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1578 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1579 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1580 if (c != '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1581 { |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
1582 xunput (c); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1583 c = '\n'; |
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 if (c == '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1588 input_line_number++; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1589 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1590 return c; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1591 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1592 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1593 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1594 octave_lexer::xunput (char c, char *buf) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1595 { |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1596 if (c != EOF) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1597 { |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1598 if (lexer_debug_flag) |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1599 { |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1600 std::cerr << "U: "; |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1601 display_character (c); |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1602 std::cerr << std::endl; |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1603 } |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1604 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1605 if (c == '\n') |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1606 input_line_number--; |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1607 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1608 yyunput (c, buf, scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1609 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1610 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1611 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
1612 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1613 octave_lexer::xunput (char c) |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
1614 { |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
1615 char *yytxt = flex_yytext (); |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
1616 |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
1617 xunput (c, yytxt); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
1618 } |
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
1619 |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1620 // 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
|
1621 // really looking at. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1622 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1623 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1624 octave_lexer::fixup_column_count (char *s) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1625 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1626 char c; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1627 while ((c = *s++) != '\0') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1628 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1629 if (c == '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1630 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1631 input_line_number++; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1632 current_input_column = 1; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1633 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1634 else |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1635 current_input_column++; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1636 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1637 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
1638 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1639 bool |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1640 octave_lexer::inside_any_object_index (void) |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1641 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1642 bool retval = false; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1643 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1644 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
|
1645 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
|
1646 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1647 if (*i) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1648 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1649 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1650 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1651 } |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1652 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1653 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1654 return retval; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1655 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1656 |
4238 | 1657 // Handle keywords. Return -1 if the keyword should be ignored. |
767 | 1658 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1659 int |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
1660 octave_lexer::is_keyword_token (const std::string& s) |
1 | 1661 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1662 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
|
1663 int c = current_input_column; |
3805 | 1664 |
1823 | 1665 int len = s.length (); |
922 | 1666 |
5088 | 1667 const octave_kw *kw = octave_kw_hash::in_word_set (s.c_str (), len); |
191 | 1668 |
1497 | 1669 if (kw) |
143 | 1670 { |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1671 token *tok_val = 0; |
1497 | 1672 |
1673 switch (kw->kw_id) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1674 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1675 case break_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1676 case catch_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1677 case continue_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1678 case else_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1679 case otherwise_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1680 case return_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1681 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
|
1682 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1683 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1684 |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1685 case static_kw: |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1686 if ((reading_fcn_file || reading_script_file |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1687 || reading_classdef_file) |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1688 && ! fcn_file_full_name.empty ()) |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1689 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
|
1690 "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
|
1691 input_line_number, |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1692 fcn_file_full_name.c_str ()); |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1693 else |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1694 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
|
1695 "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
|
1696 input_line_number); |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1697 // fall through ... |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1698 |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1699 case persistent_kw: |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1700 break; |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1701 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1702 case case_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1703 case elseif_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1704 case global_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1705 case until_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1706 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1707 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1708 case end_kw: |
14645
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
1709 if (inside_any_object_index () |
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
1710 || (! reading_classdef_file |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1711 && (defining_func |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1712 && ! (looking_at_return_list |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1713 || parsed_function_name.top ())))) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1714 return 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1715 |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1716 tok_val = new token (token::simple_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1717 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1718 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1719 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1720 case end_try_catch_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1721 tok_val = new token (token::try_catch_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1722 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1723 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1724 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1725 case end_unwind_protect_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1726 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
|
1727 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1728 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1729 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1730 case endfor_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1731 tok_val = new token (token::for_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1732 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1733 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1734 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1735 case endfunction_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1736 tok_val = new token (token::function_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1737 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1738 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1739 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1740 case endif_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1741 tok_val = new token (token::if_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1742 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1743 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1744 |
13246 | 1745 case endparfor_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1746 tok_val = new token (token::parfor_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1747 at_beginning_of_statement = true; |
13246 | 1748 break; |
1749 | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1750 case endswitch_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1751 tok_val = new token (token::switch_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1752 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1753 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1754 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1755 case endwhile_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1756 tok_val = new token (token::while_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1757 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1758 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1759 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1760 case endclassdef_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1761 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>
parents:
16111
diff
changeset
|
1762 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1763 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1764 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1765 case endenumeration_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1766 tok_val = new token (token::enumeration_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1767 at_beginning_of_statement = true; |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1768 break; |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1769 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1770 case endevents_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1771 tok_val = new token (token::events_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1772 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1773 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1774 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1775 case endmethods_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1776 tok_val = new token (token::methods_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1777 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1778 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1779 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1780 case endproperties_kw: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1781 tok_val = new token (token::properties_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1782 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1783 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1784 |
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
|
1785 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1786 case for_kw: |
13245
027a2186cd90
parfor keyword and infrastructure, but handle parfor as normal for loop for now
John W. Eaton <jwe@octave.org>
parents:
13237
diff
changeset
|
1787 case parfor_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1788 case while_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1789 promptflag--; |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1790 looping++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1791 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1792 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1793 case do_kw: |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1794 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1795 promptflag--; |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1796 looping++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1797 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1798 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1799 case try_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1800 case unwind_protect_kw: |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1801 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1802 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1803 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1804 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1805 case if_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1806 case switch_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1807 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1808 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1809 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1810 case get_kw: |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1811 case set_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1812 // 'get' and 'set' are keywords in classdef method |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1813 // declarations. |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1814 if (! maybe_classdef_get_set_method) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1815 return 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1816 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1817 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1818 case enumeration_kw: |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1819 case events_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1820 case methods_kw: |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1821 case properties_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1822 // 'properties', 'methods' and 'events' are keywords for |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1823 // classdef blocks. |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1824 if (! parsing_classdef) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1825 return 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1826 // fall through ... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1827 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1828 case classdef_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1829 // 'classdef' is always a keyword. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1830 promptflag--; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1831 |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1832 if (! force_script && token_count == 0 && input_from_file ()) |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1833 { |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1834 reading_classdef_file = true; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1835 reading_script_file = false; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1836 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1837 break; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1838 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1839 case function_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1840 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1841 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1842 defining_func++; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1843 parsed_function_name.push (false); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1844 |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1845 if (! force_script && token_count == 0 && input_from_file ()) |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1846 { |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1847 reading_fcn_file = true; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1848 reading_script_file = false; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1849 } |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1850 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1851 if (! (reading_fcn_file || reading_script_file |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1852 || reading_classdef_file)) |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1853 input_line_number = 1; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1854 break; |
1497 | 1855 |
3174 | 1856 case magic_file_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1857 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1858 if ((reading_fcn_file || reading_script_file |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1859 || reading_classdef_file) |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1860 && ! fcn_file_full_name.empty ()) |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
1861 tok_val = new token (fcn_file_full_name, l, c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1862 else |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1863 tok_val = new token ("stdin", l, c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1864 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1865 break; |
3174 | 1866 |
1867 case magic_line_kw: | |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1868 tok_val = new token (static_cast<double> (l), "", l, c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1869 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1870 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1871 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1872 panic_impossible (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1873 } |
1497 | 1874 |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1875 if (! tok_val) |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
1876 tok_val = new token (l, c); |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
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1877 |
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1878 push_token (tok_val); |
1497 | 1879 |
1880 return kw->tok; | |
143 | 1881 } |
1 | 1882 |
1883 return 0; | |
1884 } | |
1885 | |
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1886 bool |
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rename lexical_feedback to octave_lexer
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1887 octave_lexer::is_variable (const std::string& name) |
2702 | 1888 { |
8001
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improve handling of command-style names in matrix_or_assign_lhs context
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1889 return (symbol_table::is_variable (name) |
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1890 || (pending_local_variables.find (name) |
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1891 != pending_local_variables.end ())); |
2702 | 1892 } |
1893 | |
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1894 std::string |
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1895 octave_lexer::grab_block_comment (stream_reader& reader, bool& eof) |
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1896 { |
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1897 std::string buf; |
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1898 |
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1899 bool at_bol = true; |
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1900 bool look_for_marker = false; |
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1901 |
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1902 bool warned_incompatible = false; |
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1903 |
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1904 int c = 0; |
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1905 |
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1906 while ((c = reader.getc ()) != EOF) |
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1907 { |
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1908 current_input_column++; |
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1909 |
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1910 if (look_for_marker) |
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1911 { |
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1912 at_bol = false; |
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1913 look_for_marker = false; |
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1914 |
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1915 if (c == '{' || c == '}') |
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1916 { |
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1917 std::string tmp_buf (1, static_cast<char> (c)); |
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1918 |
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1919 int type = c; |
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1920 |
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1921 bool done = false; |
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1922 |
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1923 while ((c = reader.getc ()) != EOF && ! done) |
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1924 { |
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1925 current_input_column++; |
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1926 |
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1927 switch (c) |
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1928 { |
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1929 case ' ': |
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1930 case '\t': |
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1931 tmp_buf += static_cast<char> (c); |
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1932 break; |
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1933 |
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1934 case '\n': |
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1935 { |
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1936 current_input_column = 0; |
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1937 at_bol = true; |
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1938 done = true; |
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1939 |
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1940 if (type == '{') |
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1941 { |
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1942 block_comment_nesting_level++; |
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1943 promptflag--; |
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1944 } |
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|
1945 else |
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1946 { |
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1947 block_comment_nesting_level--; |
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1948 promptflag++; |
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1949 |
16113
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1950 if (block_comment_nesting_level == 0) |
10315
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1951 { |
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1952 buf += grab_comment_block (reader, true, eof); |
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1953 |
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1954 return buf; |
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1955 } |
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|
1956 } |
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|
1957 } |
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|
1958 break; |
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|
1959 |
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|
1960 default: |
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1961 at_bol = false; |
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1962 tmp_buf += static_cast<char> (c); |
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1963 buf += tmp_buf; |
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1964 done = true; |
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|
1965 break; |
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|
1966 } |
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|
1967 } |
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|
1968 } |
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|
1969 } |
7723
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|
1970 |
7898
cce16b4e0970
lex.l (grab_block_comment): Use parens around || expression within && expression
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|
1971 if (at_bol && (c == '%' || c == '#')) |
7723
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1972 { |
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1973 if (c == '#' && ! warned_incompatible) |
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1974 { |
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1975 warned_incompatible = true; |
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|
1976 maybe_gripe_matlab_incompatible_comment (c); |
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1977 } |
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1978 |
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1979 at_bol = false; |
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1980 look_for_marker = true; |
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|
1981 } |
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1982 else |
10315
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|
1983 { |
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1984 buf += static_cast<char> (c); |
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|
1985 |
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|
1986 if (c == '\n') |
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|
1987 { |
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|
1988 current_input_column = 0; |
10315
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|
1989 at_bol = true; |
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|
1990 } |
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|
1991 } |
7723
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changeset
|
1992 } |
74f5e0c7de9e
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changeset
|
1993 |
74f5e0c7de9e
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|
1994 if (c == EOF) |
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|
1995 eof = true; |
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|
1996 |
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|
1997 return buf; |
74f5e0c7de9e
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|
1998 } |
74f5e0c7de9e
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|
1999 |
7720
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|
2000 std::string |
16158
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|
2001 octave_lexer::grab_comment_block (stream_reader& reader, bool at_bol, |
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rename lexical_feedback to octave_lexer
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|
2002 bool& eof) |
1 | 2003 { |
4426 | 2004 std::string buf; |
1019 | 2005 |
7720
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unify comment and help text processing in lex.l and parse.y
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changeset
|
2006 // TRUE means we are at the beginning of a comment block. |
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|
2007 bool begin_comment = false; |
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|
2008 |
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unify comment and help text processing in lex.l and parse.y
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changeset
|
2009 // TRUE means we are currently reading a comment block. |
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changeset
|
2010 bool in_comment = false; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
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|
2011 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
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changeset
|
2012 bool warned_incompatible = false; |
3665 | 2013 |
1019 | 2014 int c = 0; |
1 | 2015 |
7720
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unify comment and help text processing in lex.l and parse.y
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changeset
|
2016 while ((c = reader.getc ()) != EOF) |
1019 | 2017 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2018 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
|
2019 |
2300 | 2020 if (begin_comment) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2021 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2022 if (c == '%' || c == '#') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2023 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2024 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2025 continue; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2026 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2027 else if (at_bol && c == '{') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2028 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2029 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
|
2030 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2031 bool done = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2032 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2033 while ((c = reader.getc ()) != EOF && ! done) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
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
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2036 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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>
parents:
10182
diff
changeset
|
2039 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2040 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
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
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2043 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2050 block_comment_nesting_level++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2051 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2052 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2053 buf += grab_block_comment (reader, eof); |
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 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2056 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2057 if (eof) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2058 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2059 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2060 break; |
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 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2063 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2064 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2065 buf += tmp_buf; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2066 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2067 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2068 } |
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 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2071 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2072 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2073 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2074 begin_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2075 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2076 } |
2300 | 2077 |
1019 | 2078 if (in_comment) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2079 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2080 buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2081 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2082 if (c == '\n') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2083 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2084 at_bol = true; |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2085 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2086 in_comment = false; |
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 // FIXME -- bailing out here prevents things like |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2089 // |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2090 // octave> # comment |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2091 // octave> x = 1 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2092 // |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2093 // from failing at the command line, while still |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2094 // allowing blocks of comments to be grabbed properly |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2095 // 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
|
2096 // 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
|
2097 // 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
|
2098 // better way of collecting these comments... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2099 if (! (reading_fcn_file || reading_script_file)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2100 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2101 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2102 } |
1019 | 2103 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2104 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2105 switch (c) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2106 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2107 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2108 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2109 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2110 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2111 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2112 if (! warned_incompatible) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2113 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2114 warned_incompatible = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2115 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2116 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2117 // fall through... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2118 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2119 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2120 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2121 begin_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2122 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2123 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2124 default: |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2125 current_input_column--; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2126 reader.ungetc (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2127 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2128 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2129 } |
1019 | 2130 } |
991 | 2131 |
1019 | 2132 done: |
991 | 2133 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2134 if (c == EOF) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2135 eof = true; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2136 |
4426 | 2137 return buf; |
1 | 2138 } |
2139 | |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2140 static bool |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2141 looks_like_copyright (const std::string& s) |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2142 { |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2143 bool retval = false; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2144 |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2145 if (! s.empty ()) |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2146 { |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2147 size_t offset = s.find_first_not_of (" \t"); |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2148 |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2149 retval = (s.substr (offset, 9) == "Copyright" || s.substr (offset, 6) == "Author"); |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2150 } |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2151 |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2152 return retval; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2153 } |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2154 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2155 int |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2156 octave_lexer::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
|
2157 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2158 OCTAVE_YYG; |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
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16148
diff
changeset
|
2159 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7634
diff
changeset
|
2160 eof = false; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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7634
diff
changeset
|
2161 |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2162 char *yytxt = flex_yytext (); |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2163 flex_stream_reader flex_reader (this, yytxt); |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2164 |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
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7722
diff
changeset
|
2165 // 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
|
2166 // initially looking at a block comment. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
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7722
diff
changeset
|
2167 |
74f5e0c7de9e
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John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2168 std::string txt = start_in_block |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2169 ? grab_block_comment (flex_reader, eof) |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2170 : 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
|
2171 |
8535 | 2172 if (lexer_debug_flag) |
8536
de1b944d5306
lex.l: finish previous change
John W. Eaton <jwe@octave.org>
parents:
8535
diff
changeset
|
2173 std::cerr << "C: " << txt << std::endl; |
8535 | 2174 |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2175 if (nesting_level.none () && help_text.empty () && ! txt.empty () |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2176 && ! looks_like_copyright (txt)) |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2177 help_text = txt; |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2178 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
2179 octave_comment_buffer::append (txt); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2180 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2181 current_input_column = 1; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2182 quote_is_transpose = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2183 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
|
2184 at_beginning_of_statement = true; |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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diff
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|
2185 |
5b4d278ec828
parse scripts completely before executing
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diff
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|
2186 if (YY_START == COMMAND_START) |
5b4d278ec828
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John W. Eaton <jwe@octave.org>
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diff
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|
2187 BEGIN (INITIAL); |
5b4d278ec828
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|
2188 |
16113
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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|
2189 if (nesting_level.none ()) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
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8745
diff
changeset
|
2190 return '\n'; |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2191 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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diff
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|
2192 return ';'; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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diff
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|
2193 else |
5b4d278ec828
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John W. Eaton <jwe@octave.org>
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diff
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|
2194 return 0; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2195 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
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|
2196 |
3263 | 2197 // Recognize separators. If the separator is a CRLF pair, it is |
2198 // replaced by a single LF. | |
2199 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
2200 bool |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2201 octave_lexer::next_token_is_sep_op (void) |
3263 | 2202 { |
2203 bool retval = false; | |
2204 | |
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
|
2205 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
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|
2206 |
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
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7723
diff
changeset
|
2207 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
|
2208 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2209 xunput (c); |
3263 | 2210 |
2211 return retval; | |
2212 } | |
2213 | |
767 | 2214 // Try to determine if the next token should be treated as a postfix |
2215 // unary operator. This is ugly, but it seems to do the right thing. | |
2216 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
2217 bool |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2218 octave_lexer::next_token_is_postfix_unary_op (bool spc_prev) |
1 | 2219 { |
2857 | 2220 bool un_op = false; |
1 | 2221 |
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
|
2222 int c0 = text_yyinput (); |
1 | 2223 |
3246 | 2224 if (c0 == '\'' && ! spc_prev) |
2225 { | |
2226 un_op = true; | |
2227 } | |
2228 else if (c0 == '.') | |
2229 { | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
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7723
diff
changeset
|
2230 int c1 = text_yyinput (); |
3246 | 2231 un_op = (c1 == '\''); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2232 xunput (c1); |
3246 | 2233 } |
4613 | 2234 else if (c0 == '+') |
2235 { | |
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
|
2236 int c1 = text_yyinput (); |
4613 | 2237 un_op = (c1 == '+'); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
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16124
diff
changeset
|
2238 xunput (c1); |
4613 | 2239 } |
2240 else if (c0 == '-') | |
2241 { | |
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
|
2242 int c1 = text_yyinput (); |
4613 | 2243 un_op = (c1 == '-'); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2244 xunput (c1); |
4613 | 2245 } |
1 | 2246 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
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16124
diff
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|
2247 xunput (c0); |
1 | 2248 |
2249 return un_op; | |
2250 } | |
2251 | |
767 | 2252 // Try to determine if the next token should be treated as a binary |
3246 | 2253 // operator. |
1521 | 2254 // |
3246 | 2255 // This kluge exists because whitespace is not always ignored inside |
3774 | 2256 // the square brackets that are used to create matrix objects (though |
2257 // spacing only really matters in the cases that can be interpreted | |
2258 // either as binary ops or prefix unary ops: currently just +, -). | |
2259 // | |
3779 | 2260 // Note that a line continuation directly following a + or - operator |
2261 // (e.g., the characters '[' 'a' ' ' '+' '\' LFD 'b' ']') will be | |
2262 // parsed as a binary operator. | |
767 | 2263 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
2264 bool |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2265 octave_lexer::next_token_is_bin_op (bool spc_prev) |
1 | 2266 { |
2857 | 2267 bool bin_op = false; |
1 | 2268 |
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
|
2269 int c0 = text_yyinput (); |
1 | 2270 |
2271 switch (c0) | |
2272 { | |
777 | 2273 case '+': |
2274 case '-': | |
3774 | 2275 { |
10315
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2276 int c1 = text_yyinput (); |
57a59eae83cc
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10182
diff
changeset
|
2277 |
57a59eae83cc
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10182
diff
changeset
|
2278 switch (c1) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
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changeset
|
2279 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2280 case '+': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2281 case '-': |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2282 // Unary ops, spacing doesn't matter. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
2283 break; |
57a59eae83cc
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10182
diff
changeset
|
2284 |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
2285 case '=': |
57a59eae83cc
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changeset
|
2286 // Binary ops, spacing doesn't matter. |
57a59eae83cc
untabify src C++ source files
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changeset
|
2287 bin_op = true; |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2288 break; |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2289 |
57a59eae83cc
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10182
diff
changeset
|
2290 default: |
57a59eae83cc
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diff
changeset
|
2291 // Could be either, spacing matters. |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
2292 bin_op = looks_like_bin_op (spc_prev, c1); |
57a59eae83cc
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diff
changeset
|
2293 break; |
57a59eae83cc
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diff
changeset
|
2294 } |
57a59eae83cc
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diff
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|
2295 |
16125
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allow xunput to be called without buffer argument
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diff
changeset
|
2296 xunput (c1); |
3774 | 2297 } |
2298 break; | |
2299 | |
2300 case ':': | |
3246 | 2301 case '/': |
2302 case '\\': | |
2303 case '^': | |
3774 | 2304 // Always a binary op (may also include /=, \=, and ^=). |
2305 bin_op = true; | |
1276 | 2306 break; |
2307 | |
3246 | 2308 // .+ .- ./ .\ .^ .* .** |
1554 | 2309 case '.': |
2310 { | |
10315
57a59eae83cc
untabify src C++ source files
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|
2311 int c1 = text_yyinput (); |
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|
2312 |
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changeset
|
2313 if (match_any (c1, "+-/\\^*")) |
57a59eae83cc
untabify src C++ source files
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|
2314 // Always a binary op (may also include .+=, .-=, ./=, ...). |
57a59eae83cc
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|
2315 bin_op = true; |
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|
2316 else if (! isdigit (c1) && c1 != ' ' && c1 != '\t' && c1 != '.') |
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untabify src C++ source files
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|
2317 // A structure element reference is a binary op. |
57a59eae83cc
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changeset
|
2318 bin_op = true; |
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|
2319 |
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|
2320 xunput (c1); |
1554 | 2321 } |
2322 break; | |
2323 | |
3246 | 2324 // = == & && | || * ** |
2325 case '=': | |
1 | 2326 case '&': |
3246 | 2327 case '|': |
1 | 2328 case '*': |
3774 | 2329 // Always a binary op (may also include ==, &&, ||, **). |
2330 bin_op = true; | |
3246 | 2331 break; |
2332 | |
3774 | 2333 // < <= <> > >= |
1 | 2334 case '<': |
2335 case '>': | |
3774 | 2336 // Always a binary op (may also include <=, <>, >=). |
2337 bin_op = true; | |
2338 break; | |
2339 | |
2340 // ~= != | |
777 | 2341 case '~': |
2342 case '!': | |
3246 | 2343 { |
10315
57a59eae83cc
untabify src C++ source files
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|
2344 int c1 = text_yyinput (); |
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|
2345 |
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|
2346 // ~ and ! can be unary ops, so require following =. |
57a59eae83cc
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|
2347 if (c1 == '=') |
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|
2348 bin_op = true; |
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|
2349 |
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changeset
|
2350 xunput (c1); |
3246 | 2351 } |
1 | 2352 break; |
2353 | |
2354 default: | |
1276 | 2355 break; |
1 | 2356 } |
2357 | |
16125
96a58f197f93
allow xunput to be called without buffer argument
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|
2358 xunput (c0); |
1 | 2359 |
2360 return bin_op; | |
2361 } | |
2362 | |
7723
74f5e0c7de9e
first pass at handling block comments
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7722
diff
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|
2363 // FIXME -- we need to handle block comments here. |
74f5e0c7de9e
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7722
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|
2364 |
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move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2365 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2366 octave_lexer::scan_for_comments (const char *text) |
3665 | 2367 { |
2368 std::string comment_buf; | |
2369 | |
2370 bool in_comment = false; | |
2371 bool beginning_of_comment = false; | |
2372 | |
2373 int len = strlen (text); | |
2374 int i = 0; | |
2375 | |
2376 while (i < len) | |
2377 { | |
2378 char c = text[i++]; | |
2379 | |
2380 switch (c) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2381 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2382 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2383 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2384 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2385 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2386 if (! beginning_of_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2387 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2388 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2389 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2390 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2391 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2392 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2393 beginning_of_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2394 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2395 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2396 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2397 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2398 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2399 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2400 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2401 octave_comment_buffer::append (comment_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2402 comment_buf.resize (0); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2403 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2404 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2405 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2406 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2407 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2408 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2409 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2410 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2411 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2412 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2413 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2414 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2415 } |
3665 | 2416 } |
2417 | |
2418 if (! comment_buf.empty ()) | |
2419 octave_comment_buffer::append (comment_buf); | |
2420 } | |
2421 | |
1001 | 2422 // Discard whitespace, including comments and continuations. |
2423 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2424 // 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
|
2425 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2426 int |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2427 octave_lexer::eat_whitespace (void) |
975 | 2428 { |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2429 int retval = octave_lexer::NO_WHITESPACE; |
3665 | 2430 |
2431 std::string comment_buf; | |
2432 | |
2857 | 2433 bool in_comment = false; |
3665 | 2434 bool beginning_of_comment = false; |
2435 | |
2436 int c = 0; | |
2437 | |
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
|
2438 while ((c = text_yyinput ()) != EOF) |
975 | 2439 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2440 current_input_column++; |
975 | 2441 |
2442 switch (c) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2443 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2444 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2445 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2446 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2447 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2448 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2449 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2450 } |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2451 retval |= octave_lexer::SPACE_OR_TAB; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2452 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2453 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2454 case '\n': |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2455 retval |= octave_lexer::NEWLINE; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2456 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2457 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2458 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2459 octave_comment_buffer::append (comment_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2460 comment_buf.resize (0); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2461 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2462 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2463 } |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2464 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2465 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2466 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2467 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2468 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2469 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2470 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2471 if (! beginning_of_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2472 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2473 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2474 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2475 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2476 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2477 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2478 beginning_of_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2479 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2480 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2481 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2482 case '.': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2483 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2484 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2485 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2486 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2487 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2488 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2489 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2490 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2491 if (have_ellipsis_continuation ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2492 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2493 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2494 goto done; |
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 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2497 case '\\': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2498 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2499 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2500 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2501 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2502 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2503 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2504 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2505 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2506 if (have_continuation ()) |
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 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2509 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2510 } |
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 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2513 if (in_comment) |
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 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2516 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2517 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2518 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2519 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2520 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2521 } |
975 | 2522 } |
2523 | |
3665 | 2524 if (! comment_buf.empty ()) |
2525 octave_comment_buffer::append (comment_buf); | |
2526 | |
975 | 2527 done: |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2528 xunput (c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2529 current_input_column--; |
1001 | 2530 return retval; |
975 | 2531 } |
2532 | |
3220 | 2533 static inline bool |
2534 looks_like_hex (const char *s, int len) | |
2535 { | |
2536 return (len > 2 && s[0] == '0' && (s[1] == 'x' || s[1] == 'X')); | |
2537 } | |
2538 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2539 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2540 octave_lexer::handle_number (void) |
972 | 2541 { |
3220 | 2542 double value = 0.0; |
2543 int nread = 0; | |
2544 | |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2545 char *yytxt = flex_yytext (); |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2546 |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2547 if (looks_like_hex (yytxt, strlen (yytxt))) |
3220 | 2548 { |
2549 unsigned long ival; | |
3598 | 2550 |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2551 nread = sscanf (yytxt, "%lx", &ival); |
3598 | 2552 |
3220 | 2553 value = static_cast<double> (ival); |
2554 } | |
2555 else | |
3598 | 2556 { |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2557 char *tmp = strsave (yytxt); |
3598 | 2558 |
2559 char *idx = strpbrk (tmp, "Dd"); | |
2621 | 2560 |
3598 | 2561 if (idx) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2562 *idx = 'e'; |
3598 | 2563 |
2564 nread = sscanf (tmp, "%lf", &value); | |
2565 | |
2566 delete [] tmp; | |
2567 } | |
972 | 2568 |
1826 | 2569 // If yytext doesn't contain a valid number, we are in deep doo doo. |
985 | 2570 |
972 | 2571 assert (nread == 1); |
2572 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2573 quote_is_transpose = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2574 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
|
2575 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
|
2576 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
|
2577 |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
2578 push_token (new token (value, yytxt, input_line_number, |
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
2579 current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2580 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2581 current_input_column += flex_yyleng (); |
972 | 2582 |
2583 do_comma_insert_check (); | |
2584 } | |
2585 | |
1001 | 2586 // We have seen a backslash and need to find out if it should be |
2587 // treated as a continuation character. If so, this eats it, up to | |
2588 // and including the new line character. | |
2589 // | |
973 | 2590 // Match whitespace only, followed by a comment character or newline. |
2591 // Once a comment character is found, discard all input until newline. | |
2592 // If non-whitespace characters are found before comment | |
2593 // characters, return 0. Otherwise, return 1. | |
2594 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2595 // 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
|
2596 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2597 bool |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2598 octave_lexer::have_continuation (bool trailing_comments_ok) |
973 | 2599 { |
5765 | 2600 std::ostringstream buf; |
973 | 2601 |
3665 | 2602 std::string comment_buf; |
2603 | |
2857 | 2604 bool in_comment = false; |
3665 | 2605 bool beginning_of_comment = false; |
2606 | |
2607 int c = 0; | |
2608 | |
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
|
2609 while ((c = text_yyinput ()) != EOF) |
973 | 2610 { |
3802 | 2611 buf << static_cast<char> (c); |
973 | 2612 |
2613 switch (c) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2614 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2615 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2616 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2617 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2618 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2619 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2620 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2621 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2622 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2623 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2624 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2625 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2626 if (trailing_comments_ok) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2627 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2628 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2629 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2630 if (! beginning_of_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2631 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2632 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2633 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2634 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2635 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2636 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2637 beginning_of_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2638 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2639 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2640 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2641 goto cleanup; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2642 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2643 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2644 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2645 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2646 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2647 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2648 octave_comment_buffer::append (comment_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2649 } |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2650 current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2651 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2652 gripe_matlab_incompatible_continuation (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2653 return true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2654 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2655 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2656 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2657 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2658 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2659 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2660 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2661 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2662 goto cleanup; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2663 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2664 } |
973 | 2665 } |
2666 | |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2667 xunput (c); |
2857 | 2668 return false; |
973 | 2669 |
3096 | 2670 cleanup: |
4051 | 2671 |
5765 | 2672 std::string s = buf.str (); |
4051 | 2673 |
2674 int len = s.length (); | |
2675 while (len--) | |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2676 xunput (s[len]); |
3096 | 2677 |
2857 | 2678 return false; |
973 | 2679 } |
2680 | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
2681 // We have seen a '.' and need to see if it is the start of a |
1001 | 2682 // continuation. If so, this eats it, up to and including the new |
2683 // line character. | |
2684 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2685 bool |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2686 octave_lexer::have_ellipsis_continuation (bool trailing_comments_ok) |
973 | 2687 { |
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
|
2688 char c1 = text_yyinput (); |
973 | 2689 if (c1 == '.') |
2690 { | |
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
|
2691 char c2 = text_yyinput (); |
1091 | 2692 if (c2 == '.' && have_continuation (trailing_comments_ok)) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2693 return true; |
973 | 2694 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2695 { |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2696 xunput (c2); |
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2697 xunput (c1); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2698 } |
973 | 2699 } |
2700 else | |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2701 xunput (c1); |
973 | 2702 |
2857 | 2703 return false; |
973 | 2704 } |
2705 | |
1001 | 2706 // See if we have a continuation line. If so, eat it and the leading |
2707 // 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
|
2708 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2709 int |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2710 octave_lexer::eat_continuation (void) |
1001 | 2711 { |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2712 int retval = octave_lexer::NO_WHITESPACE; |
3665 | 2713 |
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
|
2714 int c = text_yyinput (); |
3665 | 2715 |
1001 | 2716 if ((c == '.' && have_ellipsis_continuation ()) |
3105 | 2717 || (c == '\\' && have_continuation ())) |
1001 | 2718 retval = eat_whitespace (); |
2719 else | |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2720 xunput (c); |
1001 | 2721 |
2722 return retval; | |
2723 } | |
2724 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2725 int |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2726 octave_lexer::handle_string (char delim) |
973 | 2727 { |
5765 | 2728 std::ostringstream buf; |
973 | 2729 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2730 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
|
2731 int bos_col = current_input_column; |
3805 | 2732 |
973 | 2733 int c; |
1031 | 2734 int escape_pending = 0; |
973 | 2735 |
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
|
2736 while ((c = text_yyinput ()) != EOF) |
973 | 2737 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2738 current_input_column++; |
973 | 2739 |
3105 | 2740 if (c == '\\') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2741 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2742 if (delim == '\'' || escape_pending) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2743 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2744 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2745 escape_pending = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2746 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2747 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2748 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2749 if (have_continuation (false)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2750 escape_pending = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2751 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2752 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2753 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2754 escape_pending = 1; |
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 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2757 continue; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2758 } |
973 | 2759 else if (c == '.') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2760 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2761 if (delim == '\'' || ! have_ellipsis_continuation (false)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2762 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2763 } |
973 | 2764 else if (c == '\n') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2765 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2766 error ("unterminated string constant"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2767 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2768 } |
973 | 2769 else if (c == delim) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2770 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2771 if (escape_pending) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2772 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2773 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2774 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2775 c = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2776 if (c == delim) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2777 { |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2778 buf << static_cast<char> (c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2779 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2780 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2781 { |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2782 std::string s; |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2783 xunput (c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2784 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2785 if (delim == '\'') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2786 s = buf.str (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2787 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2788 s = do_string_escapes (buf.str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2789 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2790 quote_is_transpose = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2791 convert_spaces_to_comma = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2792 |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
2793 push_token (new token (s, bos_line, bos_col)); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2794 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2795 if (delim == '"') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2796 gripe_matlab_incompatible ("\" used as string delimiter"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2797 else if (delim == '\'') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2798 gripe_single_quote_string (); |
3400 | 2799 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2800 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
|
2801 at_beginning_of_statement = false; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2802 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2803 return delim == '"' ? DQ_STRING : SQ_STRING; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2804 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2805 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2806 } |
973 | 2807 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2808 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2809 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2810 } |
973 | 2811 |
1031 | 2812 escape_pending = 0; |
973 | 2813 } |
2814 | |
2815 return LEXICAL_ERROR; | |
2816 } | |
2817 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2818 bool |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2819 octave_lexer::next_token_is_assign_op (void) |
3208 | 2820 { |
2821 bool retval = false; | |
2822 | |
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
|
2823 int c0 = text_yyinput (); |
3208 | 2824 |
2825 switch (c0) | |
2826 { | |
2827 case '=': | |
2828 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2829 int c1 = text_yyinput (); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2830 xunput (c1); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2831 if (c1 != '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2832 retval = true; |
3208 | 2833 } |
2834 break; | |
2835 | |
2836 case '+': | |
2837 case '-': | |
2838 case '*': | |
2839 case '/': | |
2840 case '\\': | |
2841 case '&': | |
2842 case '|': | |
2843 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2844 int c1 = text_yyinput (); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2845 xunput (c1); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2846 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2847 retval = true; |
3208 | 2848 } |
2849 break; | |
2850 | |
2851 case '.': | |
2852 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2853 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2854 if (match_any (c1, "+-*/\\")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2855 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2856 int c2 = text_yyinput (); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2857 xunput (c2); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2858 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2859 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2860 } |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2861 xunput (c1); |
3208 | 2862 } |
2863 break; | |
2864 | |
2865 case '>': | |
2866 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2867 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2868 if (c1 == '>') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2869 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2870 int c2 = text_yyinput (); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2871 xunput (c2); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2872 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2873 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2874 } |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2875 xunput (c1); |
3208 | 2876 } |
2877 break; | |
2878 | |
2879 case '<': | |
2880 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2881 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2882 if (c1 == '<') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2883 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2884 int c2 = text_yyinput (); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2885 xunput (c2); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2886 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2887 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2888 } |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2889 xunput (c1); |
3208 | 2890 } |
2891 break; | |
2892 | |
2893 default: | |
2894 break; | |
2895 } | |
2896 | |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2897 xunput (c0); |
3208 | 2898 |
2899 return retval; | |
2900 } | |
2901 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2902 bool |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2903 octave_lexer::next_token_is_index_op (void) |
4633 | 2904 { |
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
|
2905 int c = text_yyinput (); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2906 xunput (c); |
4633 | 2907 return c == '(' || c == '{'; |
2908 } | |
2909 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2910 int |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2911 octave_lexer::handle_close_bracket (bool spc_gobbled, int bracket_type) |
971 | 2912 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2913 OCTAVE_YYG; |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2914 |
4612 | 2915 int retval = bracket_type; |
3208 | 2916 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2917 if (! nesting_level.none ()) |
971 | 2918 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2919 nesting_level.remove (); |
4613 | 2920 |
2921 if (bracket_type == ']') | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2922 bracketflag--; |
4613 | 2923 else if (bracket_type == '}') |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2924 braceflag--; |
4613 | 2925 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2926 panic_impossible (); |
971 | 2927 } |
2928 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2929 if (bracketflag == 0 && braceflag == 0) |
4323 | 2930 BEGIN (INITIAL); |
1001 | 2931 |
4608 | 2932 if (bracket_type == ']' |
2933 && 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
|
2934 && ! looking_at_return_list) |
971 | 2935 { |
3208 | 2936 retval = CLOSE_BRACE; |
971 | 2937 } |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2938 else if ((bracketflag || braceflag) |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2939 && convert_spaces_to_comma |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2940 && (nesting_level.is_bracket () |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2941 || (nesting_level.is_brace () |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2942 && ! looking_at_object_index.front ()))) |
971 | 2943 { |
4633 | 2944 bool index_op = next_token_is_index_op (); |
2945 | |
2946 // Don't insert comma if we are looking at something like | |
2947 // | |
2948 // [x{i}{j}] or [x{i}(j)] | |
2949 // | |
2950 // but do if we are looking at | |
2951 // | |
2952 // [x{i} {j}] or [x{i} (j)] | |
2953 | |
2954 if (spc_gobbled || ! (bracket_type == '}' && index_op)) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2955 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2956 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
|
2957 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2958 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
|
2959 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2960 bool sep_op = next_token_is_sep_op (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2961 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2962 if (! (postfix_un_op || bin_op || sep_op)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2963 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2964 maybe_warn_separator_insert (','); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2965 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2966 xunput (','); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2967 return retval; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2968 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2969 } |
971 | 2970 } |
2971 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2972 quote_is_transpose = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2973 convert_spaces_to_comma = true; |
3208 | 2974 |
2975 return retval; | |
971 | 2976 } |
2977 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2978 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
2979 octave_lexer::maybe_unput_comma (int spc_gobbled) |
1072 | 2980 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2981 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
|
2982 || (nesting_level.is_brace () |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2983 && ! looking_at_object_index.front ())) |
1072 | 2984 { |
3246 | 2985 int bin_op = next_token_is_bin_op (spc_gobbled); |
1072 | 2986 |
3246 | 2987 int postfix_un_op = next_token_is_postfix_unary_op (spc_gobbled); |
1072 | 2988 |
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
|
2989 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
|
2990 int c2 = text_yyinput (); |
2970 | 2991 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2992 xunput (c2); |
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2993 xunput (c1); |
2970 | 2994 |
3263 | 2995 int sep_op = next_token_is_sep_op (); |
2970 | 2996 |
1072 | 2997 int dot_op = (c1 == '.' |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2998 && (isalpha (c2) || isspace (c2) || c2 == '_')); |
2970 | 2999 |
3388 | 3000 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
|
3001 return; |
3388 | 3002 |
3985 | 3003 int index_op = (c1 == '(' || c1 == '{'); |
3388 | 3004 |
4476 | 3005 // If there is no space before the indexing op, we don't insert |
3006 // a comma. | |
3007 | |
3008 if (index_op && ! spc_gobbled) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3009 return; |
4476 | 3010 |
3011 maybe_warn_separator_insert (','); | |
3012 | |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3013 xunput (','); |
1072 | 3014 } |
3015 } | |
3016 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3017 bool |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3018 octave_lexer::next_token_can_follow_bin_op (void) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3019 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3020 std::stack<char> buf; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3021 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3022 int c = EOF; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3023 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3024 // Skip whitespace in current statement on current line |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3025 while (true) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3026 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3027 c = text_yyinput (); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3028 |
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
|
3029 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
|
3030 |
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
|
3031 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
|
3032 break; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3033 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3034 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3035 // Restore input. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3036 while (! buf.empty ()) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3037 { |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3038 xunput (buf.top ()); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3039 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3040 buf.pop (); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3041 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3042 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3043 return (isalnum (c) || match_any (c, "!\"'(-[_{~")); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3044 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3045 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3046 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
|
3047 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
|
3048 { |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3049 // 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
|
3050 // 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
|
3051 |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3052 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
|
3053 || 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
|
3054 || 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
|
3055 || 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
|
3056 || 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
|
3057 } |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3058 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
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16111
diff
changeset
|
3059 bool |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3060 octave_lexer::looks_like_command_arg (void) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3061 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3062 bool retval = true; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3063 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3064 int c0 = text_yyinput (); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3065 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3066 switch (c0) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3067 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3068 // = == |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3069 case '=': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3070 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
3071 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
3072 |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
3073 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
3074 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
3075 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
3076 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
3077 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
3078 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3079 retval = false; |
57a59eae83cc
untabify src C++ source files
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10182
diff
changeset
|
3080 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
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16124
diff
changeset
|
3081 xunput (c2); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
3082 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
3083 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10182
diff
changeset
|
3084 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3085 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3086 xunput (c1); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3087 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3088 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3089 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3090 case '(': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3091 case '{': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3092 // Indexing. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3093 retval = false; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3094 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3095 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3096 case '\n': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3097 // EOL. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3098 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3099 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3100 case '\'': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3101 case '"': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3102 // Beginning of a character string. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3103 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3104 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3105 // + - ++ -- += -= |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3106 case '+': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3107 case '-': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3108 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3109 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3110 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3111 switch (c1) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3112 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3113 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3114 // EOL. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3115 case '+': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3116 case '-': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3117 // Unary ops, spacing doesn't matter. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3118 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3119 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3120 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3121 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3122 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3123 if (next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3124 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3125 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3126 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3127 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3128 case '=': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3129 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3130 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3131 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3132 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3133 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3134 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3135 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3136 xunput (c2); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3137 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3138 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3139 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3140 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3141 xunput (c1); |
8746
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 break; |
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 case ':': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3146 case '/': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3147 case '\\': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3148 case '^': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3149 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3150 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3151 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3152 if (! match_any (c1, ",;\n") && (c1 == ' ' || c1 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3153 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3154 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3155 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3156 xunput (c1); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3157 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3158 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3159 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3160 // .+ .- ./ .\ .^ .* .** |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3161 case '.': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3162 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3163 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3164 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3165 if (match_any (c1, "+-/\\^*")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3166 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3167 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3168 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3169 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3170 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3171 int c3 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3172 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3173 if (! match_any (c3, ",;\n") && (c3 == ' ' || c3 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3174 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3175 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3176 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3177 xunput (c3); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3178 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3179 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
|
3180 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3181 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3182 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3183 xunput (c2); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3184 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3185 else if (! match_any (c1, ",;\n") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3186 && (! isdigit (c1) && c1 != ' ' && c1 != '\t' |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3187 && c1 != '.')) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3188 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3189 // Structure reference. FIXME -- is this a complete check? |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3190 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3191 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3192 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3193 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3194 xunput (c1); |
8746
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 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3197 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3198 // & && | || * ** |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3199 case '&': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3200 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 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3203 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3204 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3205 if (c1 == c0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3206 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3207 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3208 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3209 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3210 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3211 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3212 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3213 xunput (c2); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3214 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3215 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
|
3216 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3217 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3218 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3219 xunput (c1); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3220 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3221 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3222 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3223 // < <= > >= |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3224 case '<': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3225 case '>': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3226 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3227 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3228 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3229 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3230 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3231 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3232 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3233 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3234 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3235 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3236 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3237 xunput (c2); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3238 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3239 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
|
3240 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3241 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3242 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3243 xunput (c1); |
8746
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 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3246 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3247 // ~= != |
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 case '!': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3250 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3251 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3252 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3253 // ~ and ! can be unary ops, so require following =. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3254 if (c1 == '=') |
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 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3257 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3258 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3259 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3260 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3261 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3262 xunput (c2); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3263 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3264 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
|
3265 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3266 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3267 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3268 xunput (c1); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3269 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3270 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3271 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3272 default: |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3273 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3274 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3275 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3276 xunput (c0); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3277 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3278 return retval; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3279 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3280 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3281 int |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3282 octave_lexer::handle_superclass_identifier (void) |
9476 | 3283 { |
3284 eat_continuation (); | |
3285 | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3286 std::string pkg; |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
3287 char *yytxt = flex_yytext (); |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
3288 std::string meth = strip_trailing_whitespace (yytxt); |
9476 | 3289 size_t pos = meth.find ("@"); |
3290 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
|
3291 meth = meth.substr (0, pos - 1); |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3292 |
9476 | 3293 pos = cls.find ("."); |
3294 if (pos != std::string::npos) | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3295 { |
9476 | 3296 pkg = cls.substr (pos).substr (1); |
3297 cls = cls.substr (0, pos - 1); | |
3298 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3299 |
9476 | 3300 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
|
3301 || is_keyword_token (pkg)); |
9476 | 3302 if (kw_token) |
3303 { | |
3304 error ("method, class and package names may not be keywords"); | |
3305 return LEXICAL_ERROR; | |
3306 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3307 |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3308 push_token (new token (meth.empty () ? 0 : &(symbol_table::insert (meth)), |
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3309 cls.empty () ? 0 : &(symbol_table::insert (cls)), |
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3310 pkg.empty () ? 0 : &(symbol_table::insert (pkg)), |
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3311 input_line_number, current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3312 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3313 convert_spaces_to_comma = true; |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
3314 current_input_column += flex_yyleng (); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3315 |
9476 | 3316 return SUPERCLASSREF; |
3317 } | |
3318 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3319 int |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3320 octave_lexer::handle_meta_identifier (void) |
9476 | 3321 { |
3322 eat_continuation (); | |
3323 | |
3324 std::string pkg; | |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
3325 char *yytxt = flex_yytext (); |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
3326 std::string cls = strip_trailing_whitespace (yytxt).substr (1); |
9476 | 3327 size_t pos = cls.find ("."); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3328 |
9476 | 3329 if (pos != std::string::npos) |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3330 { |
9476 | 3331 pkg = cls.substr (pos).substr (1); |
3332 cls = cls.substr (0, pos - 1); | |
3333 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3334 |
9476 | 3335 int kw_token = is_keyword_token (cls) || is_keyword_token (pkg); |
3336 if (kw_token) | |
3337 { | |
3338 error ("class and package names may not be keywords"); | |
3339 return LEXICAL_ERROR; | |
3340 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3341 |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3342 push_token (new token (cls.empty () ? 0 : &(symbol_table::insert (cls)), |
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3343 pkg.empty () ? 0 : &(symbol_table::insert (pkg)), |
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3344 input_line_number, current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3345 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3346 convert_spaces_to_comma = true; |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
3347 current_input_column += flex_yyleng (); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3348 |
9476 | 3349 return METAQUERY; |
3350 } | |
3351 | |
767 | 3352 // Figure out exactly what kind of token to return when we have seen |
4238 | 3353 // an identifier. Handles keywords. Return -1 if the identifier |
3354 // should be ignored. | |
767 | 3355 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3356 int |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3357 octave_lexer::handle_identifier (void) |
146 | 3358 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3359 OCTAVE_YYG; |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3360 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3361 bool at_bos = at_beginning_of_statement; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3362 |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
3363 char *yytxt = flex_yytext (); |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
3364 |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
3365 std::string tok = strip_trailing_whitespace (yytxt); |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
3366 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
3367 int c = yytxt[flex_yyleng()-1]; |
3974 | 3368 |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3369 bool cont_is_spc = (eat_continuation () != octave_lexer::NO_WHITESPACE); |
3974 | 3370 |
3371 int spc_gobbled = (cont_is_spc || c == ' ' || c == '\t'); | |
3372 | |
2970 | 3373 // If we are expecting a structure element, avoid recognizing |
3374 // keywords and other special names and return STRUCT_ELT, which is | |
3375 // a string that is also a valid identifier. But first, we have to | |
3376 // decide whether to insert a comma. | |
747 | 3377 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3378 if (looking_at_indirect_ref) |
1072 | 3379 { |
2970 | 3380 do_comma_insert_check (); |
3381 | |
1072 | 3382 maybe_unput_comma (spc_gobbled); |
2819 | 3383 |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3384 push_token (new token (tok, input_line_number, |
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3385 current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3386 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3387 quote_is_transpose = true; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3388 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
|
3389 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
|
3390 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
3391 current_input_column += flex_yyleng (); |
2819 | 3392 |
2970 | 3393 return STRUCT_ELT; |
1072 | 3394 } |
747 | 3395 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3396 at_beginning_of_statement = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3397 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3398 // 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
|
3399 // 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
|
3400 // 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
|
3401 // statement. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3402 |
4930 | 3403 int kw_token = is_keyword_token (tok); |
3404 | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3405 // 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
|
3406 // 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
|
3407 // statement. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3408 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3409 if (looking_at_function_handle) |
4930 | 3410 { |
3411 if (kw_token) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3412 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3413 error ("function handles may not refer to keywords"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3414 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3415 return LEXICAL_ERROR; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3416 } |
4930 | 3417 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3418 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3419 push_token (new token (tok, input_line_number, |
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3420 current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3421 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
3422 current_input_column += flex_yyleng (); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3423 quote_is_transpose = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3424 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
|
3425 looking_for_object_index = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3426 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3427 return FCN_HANDLE; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3428 } |
4930 | 3429 } |
3430 | |
5102 | 3431 // 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
|
3432 // Keywords can be followed by identifiers. |
146 | 3433 |
3434 if (kw_token) | |
3435 { | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3436 if (kw_token >= 0) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3437 { |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
3438 current_input_column += flex_yyleng (); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3439 quote_is_transpose = false; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3440 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
|
3441 looking_for_object_index = false; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3442 } |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3443 |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3444 return kw_token; |
146 | 3445 } |
3446 | |
1826 | 3447 // See if we have a plot keyword (title, using, with, or clear). |
146 | 3448 |
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
|
3449 int c1 = text_yyinput (); |
3480 | 3450 |
3451 bool next_tok_is_eq = false; | |
3452 if (c1 == '=') | |
3453 { | |
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
|
3454 int c2 = text_yyinput (); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3455 xunput (c2); |
3480 | 3456 |
3457 if (c2 != '=') | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3458 next_tok_is_eq = true; |
3480 | 3459 } |
3460 | |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
3461 xunput (c1); |
1001 | 3462 |
2702 | 3463 // Kluge alert. |
3464 // | |
3465 // If we are looking at a text style function, set up to gobble its | |
2745 | 3466 // arguments. |
3467 // | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3468 // If the following token is '=', or if we are parsing a function |
3189 | 3469 // return list or function parameter list, or if we are looking at |
3470 // something like [ab,cd] = foo (), force the symbol to be inserted | |
3471 // as a variable in the current symbol table. | |
2702 | 3472 |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3473 if (! is_variable (tok)) |
2702 | 3474 { |
10052
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3475 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
|
3476 && looks_like_command_arg ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3477 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3478 BEGIN (COMMAND_START); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3479 } |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3480 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
|
3481 || looking_at_decl_list |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3482 || looking_at_return_list |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3483 || (looking_at_parameter_list |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3484 && ! looking_at_initializer_expression)) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3485 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3486 symbol_table::force_variable (tok); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3487 } |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3488 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
|
3489 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3490 pending_local_variables.insert (tok); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3491 } |
2702 | 3492 } |
3493 | |
4234 | 3494 // Find the token in the symbol table. Beware the magic |
3495 // transformation of the end keyword... | |
3496 | |
3497 if (tok == "end") | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3498 tok = "__end__"; |
146 | 3499 |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3500 push_token (new token (&(symbol_table::insert (tok)), |
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3501 input_line_number, current_input_column)); |
146 | 3502 |
1826 | 3503 // After seeing an identifer, it is ok to convert spaces to a comma |
3504 // (if needed). | |
146 | 3505 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3506 convert_spaces_to_comma = true; |
146 | 3507 |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3508 if (! (next_tok_is_eq || YY_START == COMMAND_START)) |
2877 | 3509 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3510 quote_is_transpose = true; |
146 | 3511 |
2877 | 3512 do_comma_insert_check (); |
3513 | |
3514 maybe_unput_comma (spc_gobbled); | |
146 | 3515 } |
3516 | |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
3517 current_input_column += flex_yyleng (); |
146 | 3518 |
9324
29563379fa9b
don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
3519 if (tok != "__end__") |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3520 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
|
3521 |
146 | 3522 return NAME; |
3523 } | |
3524 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3525 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3526 octave_lexer::maybe_warn_separator_insert (char sep) |
3388 | 3527 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3528 std::string nm = fcn_file_full_name; |
3388 | 3529 |
5794 | 3530 if (nm.empty ()) |
3531 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
|
3532 "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
|
3533 sep, input_line_number); |
5794 | 3534 else |
3535 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
|
3536 "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
|
3537 sep, input_line_number, nm.c_str ()); |
3388 | 3538 } |
3539 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3540 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3541 octave_lexer::gripe_single_quote_string (void) |
3400 | 3542 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3543 std::string nm = fcn_file_full_name; |
3400 | 3544 |
5794 | 3545 if (nm.empty ()) |
3546 warning_with_id ("Octave:single-quote-string", | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3547 "single quote delimited string near line %d", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3548 input_line_number); |
5794 | 3549 else |
3550 warning_with_id ("Octave:single-quote-string", | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3551 "single quote delimited string near line %d of file %s", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3552 input_line_number, nm.c_str ()); |
3400 | 3553 } |
3554 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3555 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3556 octave_lexer::gripe_matlab_incompatible (const std::string& msg) |
4037 | 3557 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3558 std::string nm = fcn_file_full_name; |
8974
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3559 |
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3560 if (nm.empty ()) |
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3561 warning_with_id ("Octave:matlab-incompatible", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3562 "potential Matlab compatibility problem: %s", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3563 msg.c_str ()); |
8974
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3564 else |
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3565 warning_with_id ("Octave:matlab-incompatible", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3566 "potential Matlab compatibility problem: %s near line %d offile %s", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3567 msg.c_str (), input_line_number, nm.c_str ()); |
4037 | 3568 } |
3569 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3570 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3571 octave_lexer::maybe_gripe_matlab_incompatible_comment (char c) |
4037 | 3572 { |
3573 if (c == '#') | |
3574 gripe_matlab_incompatible ("# used as comment character"); | |
3575 } | |
3576 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3577 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3578 octave_lexer::gripe_matlab_incompatible_continuation (void) |
4037 | 3579 { |
3580 gripe_matlab_incompatible ("\\ used as line continuation marker"); | |
3581 } | |
3582 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3583 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3584 octave_lexer::gripe_matlab_incompatible_operator (const std::string& op) |
4037 | 3585 { |
3586 std::string t = op; | |
3587 int n = t.length (); | |
3588 if (t[n-1] == '\n') | |
3589 t.resize (n-1); | |
3590 gripe_matlab_incompatible (t + " used as operator"); | |
3591 } | |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3592 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3593 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3594 octave_lexer::push_token (token *tok) |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3595 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3596 YYSTYPE *lval = yyget_lval (scanner); |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3597 lval->tok_val = tok; |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3598 token_stack.push (tok); |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3599 } |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3600 |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3601 token * |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3602 octave_lexer::current_token (void) |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3603 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3604 YYSTYPE *lval = yyget_lval (scanner); |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3605 return lval->tok_val; |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3606 } |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3607 |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3608 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3609 octave_lexer::display_token (int tok) |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3610 { |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3611 switch (tok) |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3612 { |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3613 case '=': std::cerr << "'='\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3614 case ':': std::cerr << "':'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3615 case '-': std::cerr << "'-'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3616 case '+': std::cerr << "'+'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3617 case '*': std::cerr << "'*'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3618 case '/': std::cerr << "'/'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3619 case ADD_EQ: std::cerr << "ADD_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3620 case SUB_EQ: std::cerr << "SUB_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3621 case MUL_EQ: std::cerr << "MUL_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3622 case DIV_EQ: std::cerr << "DIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3623 case LEFTDIV_EQ: std::cerr << "LEFTDIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3624 case POW_EQ: std::cerr << "POW_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3625 case EMUL_EQ: std::cerr << "EMUL_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3626 case EDIV_EQ: std::cerr << "EDIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3627 case ELEFTDIV_EQ: std::cerr << "ELEFTDIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3628 case EPOW_EQ: std::cerr << "EPOW_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3629 case AND_EQ: std::cerr << "AND_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3630 case OR_EQ: std::cerr << "OR_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3631 case LSHIFT_EQ: std::cerr << "LSHIFT_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3632 case RSHIFT_EQ: std::cerr << "RSHIFT_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3633 case LSHIFT: std::cerr << "LSHIFT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3634 case RSHIFT: std::cerr << "RSHIFT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3635 case EXPR_AND_AND: std::cerr << "EXPR_AND_AND\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3636 case EXPR_OR_OR: std::cerr << "EXPR_OR_OR\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3637 case EXPR_AND: std::cerr << "EXPR_AND\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3638 case EXPR_OR: std::cerr << "EXPR_OR\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3639 case EXPR_NOT: std::cerr << "EXPR_NOT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3640 case EXPR_LT: std::cerr << "EXPR_LT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3641 case EXPR_LE: std::cerr << "EXPR_LE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3642 case EXPR_EQ: std::cerr << "EXPR_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3643 case EXPR_NE: std::cerr << "EXPR_NE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3644 case EXPR_GE: std::cerr << "EXPR_GE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3645 case EXPR_GT: std::cerr << "EXPR_GT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3646 case LEFTDIV: std::cerr << "LEFTDIV\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3647 case EMUL: std::cerr << "EMUL\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3648 case EDIV: std::cerr << "EDIV\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3649 case ELEFTDIV: std::cerr << "ELEFTDIV\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3650 case EPLUS: std::cerr << "EPLUS\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3651 case EMINUS: std::cerr << "EMINUS\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3652 case QUOTE: std::cerr << "QUOTE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3653 case TRANSPOSE: std::cerr << "TRANSPOSE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3654 case PLUS_PLUS: std::cerr << "PLUS_PLUS\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3655 case MINUS_MINUS: std::cerr << "MINUS_MINUS\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3656 case POW: std::cerr << "POW\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3657 case EPOW: std::cerr << "EPOW\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3658 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3659 case NUM: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3660 case IMAG_NUM: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3661 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3662 token *tok_val = current_token (); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3663 std::cerr << (tok == NUM ? "NUM" : "IMAG_NUM") |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
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16125
diff
changeset
|
3664 << " [" << tok_val->number () << "]\n"; |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
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16125
diff
changeset
|
3665 } |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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16118
diff
changeset
|
3666 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3667 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3668 case STRUCT_ELT: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3669 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
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16146
diff
changeset
|
3670 token *tok_val = current_token (); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
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16125
diff
changeset
|
3671 std::cerr << "STRUCT_ELT [" << tok_val->text () << "]\n"; |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
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16125
diff
changeset
|
3672 } |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
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16125
diff
changeset
|
3673 break; |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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16118
diff
changeset
|
3674 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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16118
diff
changeset
|
3675 case NAME: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3676 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3677 token *tok_val = current_token (); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
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16125
diff
changeset
|
3678 symbol_table::symbol_record *sr = tok_val->sym_rec (); |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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16118
diff
changeset
|
3679 std::cerr << "NAME"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3680 if (sr) |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3681 std::cerr << " [" << sr->name () << "]"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3682 std::cerr << "\n"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3683 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3684 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3685 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3686 case END: std::cerr << "END\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3687 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3688 case DQ_STRING: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3689 case SQ_STRING: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3690 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
3691 token *tok_val = current_token (); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3692 |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3693 std::cerr << (tok == DQ_STRING ? "DQ_STRING" : "SQ_STRING") |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3694 << " [" << tok_val->text () << "]\n"; |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3695 } |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3696 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3697 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3698 case FOR: std::cerr << "FOR\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3699 case WHILE: std::cerr << "WHILE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3700 case DO: std::cerr << "DO\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3701 case UNTIL: std::cerr << "UNTIL\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3702 case IF: std::cerr << "IF\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3703 case ELSEIF: std::cerr << "ELSEIF\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3704 case ELSE: std::cerr << "ELSE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3705 case SWITCH: std::cerr << "SWITCH\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3706 case CASE: std::cerr << "CASE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3707 case OTHERWISE: std::cerr << "OTHERWISE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3708 case BREAK: std::cerr << "BREAK\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3709 case CONTINUE: std::cerr << "CONTINUE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3710 case FUNC_RET: std::cerr << "FUNC_RET\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3711 case UNWIND: std::cerr << "UNWIND\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3712 case CLEANUP: std::cerr << "CLEANUP\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3713 case TRY: std::cerr << "TRY\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3714 case CATCH: std::cerr << "CATCH\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3715 case GLOBAL: std::cerr << "GLOBAL\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3716 case PERSISTENT: std::cerr << "PERSISTENT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3717 case FCN_HANDLE: std::cerr << "FCN_HANDLE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3718 case END_OF_INPUT: std::cerr << "END_OF_INPUT\n\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3719 case LEXICAL_ERROR: std::cerr << "LEXICAL_ERROR\n\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3720 case FCN: std::cerr << "FCN\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3721 case CLOSE_BRACE: std::cerr << "CLOSE_BRACE\n"; break; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3722 case INPUT_FILE: std::cerr << "INPUT_FILE\n"; break; |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3723 case SUPERCLASSREF: std::cerr << "SUPERCLASSREF\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3724 case METAQUERY: std::cerr << "METAQUERY\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3725 case GET: std::cerr << "GET\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3726 case SET: std::cerr << "SET\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3727 case PROPERTIES: std::cerr << "PROPERTIES\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3728 case METHODS: std::cerr << "METHODS\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3729 case EVENTS: std::cerr << "EVENTS\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3730 case CLASSDEF: std::cerr << "CLASSDEF\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3731 case '\n': std::cerr << "\\n\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3732 case '\r': std::cerr << "\\r\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3733 case '\t': std::cerr << "TAB\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3734 default: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3735 { |
16166
cb80b1d062b1
don't attempt to print unprintable tokens
John W. Eaton <jwe@octave.org>
parents:
16164
diff
changeset
|
3736 if (tok < 256 && tok > 31) |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3737 std::cerr << static_cast<char> (tok) << "\n"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3738 else |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3739 std::cerr << "UNKNOWN(" << tok << ")\n"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3740 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3741 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3742 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3743 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3744 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3745 static void |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3746 display_state (int state) |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3747 { |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3748 std::cerr << "S: "; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3749 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3750 switch (state) |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3751 { |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3752 case INITIAL: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3753 std::cerr << "INITIAL" << std::endl; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3754 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3755 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3756 case COMMAND_START: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3757 std::cerr << "COMMAND_START" << std::endl; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3758 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3759 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3760 case MATRIX_START: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3761 std::cerr << "MATRIX_START" << std::endl; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3762 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3763 |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3764 case INPUT_FILE_BEGIN: |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3765 std::cerr << "INPUT_FILE_BEGIN" << std::endl; |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3766 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3767 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3768 default: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3769 std::cerr << "UNKNOWN START STATE!" << std::endl; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3770 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3771 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3772 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3773 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3774 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3775 octave_lexer::fatal_error (const char *msg) |
16129
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3776 { |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3777 error (msg); |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3778 |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3779 OCTAVE_QUIT; |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3780 |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3781 yy_fatal_error (msg, scanner); |
16129
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3782 } |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3783 |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3784 void |
16158
7eb614760ddb
rename lexical_feedback to octave_lexer
John W. Eaton <jwe@octave.org>
parents:
16154
diff
changeset
|
3785 octave_lexer::lexer_debug (const char *pattern, const char *text) |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3786 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3787 OCTAVE_YYG; |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3788 |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3789 std::cerr << std::endl; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3790 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3791 display_state (YY_START); |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3792 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3793 std::cerr << "P: " << pattern << std::endl; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
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3794 std::cerr << "T: " << text << std::endl; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
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3795 } |