Mercurial > octave
annotate libinterp/parse-tree/lex.ll @ 20895:7697a3433e37
doc: Remove class of function from docstring from generated C++ files.
* mk-opts.pl, lex.ll, oct-parse.in.yy: Remove class of function from
@deftypefn.
author | Rik <rik@octave.org> |
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date | Mon, 14 Dec 2015 14:22:57 -0800 |
parents | 14cd86258b3d |
children | 9db35d2042be |
rev | line source |
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1994 | 1 /* |
1 | 2 |
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3 Copyright (C) 1993-2015 John W. Eaton |
1 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
10 option) any later version. | |
1 | 11 |
12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
1 | 20 |
21 */ | |
22 | |
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23 /* |
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24 We are using the pure parser interface and the reentrant lexer |
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25 interface but the Octave parser and lexer are NOT properly |
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26 reentrant because both still use many global variables. It should be |
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27 safe to create a parser object and call it while another parser |
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28 object is active (to parse a callback function while the main |
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29 interactive parser is waiting for input, for example) if you take |
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30 care to properly save and restore (typically with an unwind_protect |
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31 object) relevant global values before and after the nested call. |
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32 */ |
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33 |
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 %option noyyalloc |
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40 %option noyyrealloc |
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41 %option noyyfree |
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42 |
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43 %top { |
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44 #ifdef HAVE_CONFIG_H |
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45 #include <config.h> |
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46 #endif |
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48 } |
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49 |
18234 | 50 %x COMMAND_START |
4208 | 51 %s MATRIX_START |
4240 | 52 |
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53 %x INPUT_FILE_START |
1 | 54 |
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55 %x BLOCK_COMMENT_START |
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56 %x LINE_COMMENT_START |
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57 |
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58 %x DQ_STRING_START |
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59 %x SQ_STRING_START |
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60 |
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61 %x FQ_IDENT_START |
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62 |
1 | 63 %{ |
240 | 64 |
1341 | 65 #include <cctype> |
66 #include <cstring> | |
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67 #include <stdint.h> |
1341 | 68 |
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69 #include <iostream> |
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70 #include <set> |
5765 | 71 #include <sstream> |
1823 | 72 #include <string> |
4214 | 73 #include <stack> |
1823 | 74 |
4093 | 75 #include <sys/types.h> |
76 #include <unistd.h> | |
77 | |
2926 | 78 #include "cmd-edit.h" |
4153 | 79 #include "quit.h" |
4910 | 80 #include "lo-mappers.h" |
2926 | 81 |
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82 // These would be alphabetical, but oct-parse.h must be included before |
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83 // oct-gperf.h and oct-parse.h must be included after token.h and the tree |
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84 // class declarations. We can't include oct-parse.h in oct-gperf.h |
1497 | 85 // because it may not be protected to allow it to be included multiple |
86 // times. | |
87 | |
4264 | 88 #include "Cell.h" |
3665 | 89 #include "comment-list.h" |
2181 | 90 #include "defun.h" |
1355 | 91 #include "error.h" |
4910 | 92 #include "gripes.h" |
1351 | 93 #include "input.h" |
1355 | 94 #include "lex.h" |
2891 | 95 #include "ov.h" |
1355 | 96 #include "parse.h" |
2987 | 97 #include "pt-all.h" |
2891 | 98 #include "symtab.h" |
99 #include "token.h" | |
100 #include "toplev.h" | |
1355 | 101 #include "utils.h" |
102 #include "variables.h" | |
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103 #include <oct-parse.h> |
2492 | 104 #include <oct-gperf.h> |
1 | 105 |
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106 // FIXME: with bison 3.x, OCTAVE_STYPE appears in the generated |
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107 // oct-parse.h file, but there is no definition for YYSTYPE, which is |
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108 // needed by the code that is generated by flex. I can't seem to find a |
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109 // way to tell flex to use OCTAVE_STYPE instead of YYSTYPE in the code |
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110 // it generates, or to tell bison to provide the definition of YYSTYPE |
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111 // in the generated oct-parse.h file. |
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112 |
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113 #if defined (OCTAVE_STYPE_IS_DECLARED) && ! defined YYSTYPE |
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114 #define YYSTYPE OCTAVE_STYPE |
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115 #endif |
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116 |
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117 #if defined (GNULIB_NAMESPACE) |
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118 // Calls to the following functions appear in the generated output from |
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119 // flex without the namespace tag. Redefine them so we will use them |
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120 // via the gnulib namespace. |
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121 #define fprintf GNULIB_NAMESPACE::fprintf |
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122 #define fwrite GNULIB_NAMESPACE::fwrite |
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123 #define isatty GNULIB_NAMESPACE::isatty |
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124 #define malloc GNULIB_NAMESPACE::malloc |
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125 #define realloc GNULIB_NAMESPACE::realloc |
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126 #endif |
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127 |
2716 | 128 #if ! (defined (FLEX_SCANNER) \ |
129 && defined (YY_FLEX_MAJOR_VERSION) && YY_FLEX_MAJOR_VERSION >= 2 \ | |
130 && defined (YY_FLEX_MINOR_VERSION) && YY_FLEX_MINOR_VERSION >= 5) | |
131 #error lex.l requires flex version 2.5.4 or later | |
132 #endif | |
133 | |
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134 #define YY_EXTRA_TYPE octave_base_lexer * |
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135 #define curr_lexer yyextra |
4753 | 136 |
137 // Arrange to get input via readline. | |
138 | |
139 #ifdef YY_INPUT | |
140 #undef YY_INPUT | |
141 #endif | |
142 #define YY_INPUT(buf, result, max_size) \ | |
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143 result = curr_lexer->fill_flex_buffer (buf, max_size) |
4753 | 144 |
145 // Try to avoid crashing out completely on fatal scanner errors. | |
146 | |
147 #ifdef YY_FATAL_ERROR | |
148 #undef YY_FATAL_ERROR | |
149 #endif | |
150 #define YY_FATAL_ERROR(msg) \ | |
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151 (yyget_extra (yyscanner))->fatal_error (msg) |
4753 | 152 |
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153 #define CMD_OR_OP(PATTERN, TOK, COMPAT) \ |
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154 \ |
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155 do \ |
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156 { \ |
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157 curr_lexer->lexer_debug (PATTERN); \ |
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158 \ |
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159 if (curr_lexer->looks_like_command_arg ()) \ |
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160 { \ |
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161 yyless (0); \ |
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162 curr_lexer->push_start_state (COMMAND_START); \ |
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163 } \ |
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164 else \ |
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165 { \ |
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166 return curr_lexer->handle_op_internal (TOK, false, COMPAT); \ |
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167 } \ |
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168 } \ |
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169 while (0) |
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170 |
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171 #define CMD_OR_COMPUTED_ASSIGN_OP(PATTERN, TOK) \ |
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172 \ |
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173 do \ |
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174 { \ |
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175 curr_lexer->lexer_debug (PATTERN); \ |
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176 \ |
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177 if (curr_lexer->previous_token_may_be_command () \ |
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178 && curr_lexer->space_follows_previous_token ()) \ |
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179 { \ |
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180 yyless (0); \ |
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181 curr_lexer->push_start_state (COMMAND_START); \ |
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182 } \ |
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183 else \ |
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184 { \ |
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185 return curr_lexer->handle_language_extension_op (PATTERN, TOK, \ |
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186 false); \ |
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187 } \ |
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188 } \ |
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189 while (0) |
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190 |
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191 #define CMD_OR_UNARY_OP(PATTERN, TOK, COMPAT) \ |
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192 \ |
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193 do \ |
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194 { \ |
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195 curr_lexer->lexer_debug (PATTERN); \ |
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196 \ |
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197 if (curr_lexer->previous_token_may_be_command ()) \ |
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198 { \ |
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199 if (curr_lexer->looks_like_command_arg ()) \ |
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200 { \ |
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201 yyless (0); \ |
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202 curr_lexer->push_start_state (COMMAND_START); \ |
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203 } \ |
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204 else \ |
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205 { \ |
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206 return curr_lexer->handle_op_internal (TOK, false, COMPAT); \ |
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207 } \ |
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208 } \ |
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209 else \ |
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210 { \ |
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211 int tok \ |
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212 = (COMPAT \ |
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213 ? curr_lexer->handle_unary_op (TOK) \ |
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214 : curr_lexer->handle_language_extension_unary_op (TOK)); \ |
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215 \ |
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216 if (tok < 0) \ |
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217 { \ |
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218 yyless (0); \ |
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219 curr_lexer->xunput (','); \ |
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220 /* Adjust for comma that was not really in the input stream. */ \ |
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221 curr_lexer->current_input_column--; \ |
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222 } \ |
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223 else \ |
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224 { \ |
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225 return tok; \ |
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226 } \ |
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227 } \ |
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228 } \ |
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229 while (0) |
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230 |
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231 // We can't rely on the trick used elsewhere of sticking ASCII 1 in |
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232 // the input buffer and recognizing it as a special case because ASCII |
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233 // 1 is a valid character for a character string. If we are at the |
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234 // end of the buffer, ask for more input. If we are at the end of the |
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235 // file, deal with it. Otherwise, just keep going with the text from |
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236 // the current buffer. |
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237 #define HANDLE_STRING_CONTINUATION \ |
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238 do \ |
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239 { \ |
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240 curr_lexer->decrement_promptflag (); \ |
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241 curr_lexer->input_line_number++; \ |
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242 curr_lexer->current_input_column = 1; \ |
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243 \ |
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244 if (curr_lexer->is_push_lexer ()) \ |
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245 { \ |
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246 if (curr_lexer->at_end_of_buffer ()) \ |
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247 return -1; \ |
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248 \ |
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249 if (curr_lexer->at_end_of_file ()) \ |
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250 return curr_lexer->handle_end_of_input (); \ |
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251 } \ |
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252 } \ |
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253 while (0) |
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254 |
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255 // When a command argument boundary is detected, push out the |
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256 // current argument being built. This one seems like a good |
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257 // candidate for a function call. |
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258 |
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259 #define COMMAND_ARG_FINISH \ |
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260 do \ |
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261 { \ |
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262 if (curr_lexer->string_text.empty ()) \ |
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263 break; \ |
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264 \ |
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265 int retval = curr_lexer->handle_token (curr_lexer->string_text, \ |
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266 SQ_STRING); \ |
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267 \ |
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268 curr_lexer->string_text = ""; \ |
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269 curr_lexer->command_arg_paren_count = 0; \ |
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270 \ |
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271 yyless (0); \ |
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272 \ |
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273 return retval; \ |
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274 } \ |
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275 while (0) |
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276 |
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277 #define HANDLE_IDENTIFIER(pattern, get_set) \ |
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278 do \ |
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279 { \ |
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280 curr_lexer->lexer_debug (pattern); \ |
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281 \ |
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282 int tok = curr_lexer->previous_token_value (); \ |
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283 \ |
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284 if (curr_lexer->whitespace_is_significant () \ |
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285 && curr_lexer->space_follows_previous_token () \ |
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286 && ! (tok == '[' || tok == '{' \ |
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287 || curr_lexer->previous_token_is_binop ())) \ |
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288 { \ |
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289 yyless (0); \ |
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290 unput (','); \ |
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291 } \ |
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292 else \ |
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293 { \ |
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294 if (! curr_lexer->looking_at_decl_list \ |
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295 && curr_lexer->previous_token_may_be_command ()) \ |
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296 { \ |
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297 yyless (0); \ |
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298 curr_lexer->push_start_state (COMMAND_START); \ |
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299 } \ |
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300 else \ |
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301 { \ |
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302 if (get_set) \ |
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303 curr_lexer->maybe_classdef_get_set_method = false; \ |
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304 \ |
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305 int id_tok = curr_lexer->handle_identifier (); \ |
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306 \ |
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307 if (id_tok >= 0) \ |
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308 return curr_lexer->count_token_internal (id_tok); \ |
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309 } \ |
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310 } \ |
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311 } \ |
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312 while (0) |
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313 |
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314 static bool Vdisplay_tokens = false; |
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315 |
4910 | 316 static unsigned int Vtoken_count = 0; |
317 | |
8535 | 318 // Internal variable for lexer debugging state. |
319 static bool lexer_debug_flag = false; | |
320 | |
1 | 321 %} |
322 | |
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323 D [0-9] |
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324 D_ [0-9_] |
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325 S [ \t] |
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326 NL ((\n)|(\r)|(\r\n)) |
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327 Im [iIjJ] |
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328 CCHAR [#%] |
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329 IDENT ([_$a-zA-Z][_$a-zA-Z0-9]*) |
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330 FQIDENT ({IDENT}(\.{IDENT})*) |
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331 EXPON ([DdEe][+-]?{D}{D_}*) |
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332 NUMBIN (0[bB][01_]+) |
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333 NUMHEX (0[xX][0-9a-fA-F][0-9a-fA-F_]*) |
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334 NUMREAL (({D}{D_}*\.?{D_}*{EXPON}?)|(\.{D}{D_}*{EXPON}?)) |
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335 NUMBER ({NUMREAL}|{NUMHEX}|{NUMBIN}) |
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336 |
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337 ANY_EXCEPT_NL [^\r\n] |
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338 ANY_INCLUDING_NL (.|{NL}) |
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339 |
1 | 340 %% |
341 | |
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342 %{ |
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343 // Make script and function files start with an invalid token. This makes |
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344 // the parser go down a special path. |
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345 %} |
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346 |
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347 <INPUT_FILE_START>{ANY_INCLUDING_NL} { |
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348 curr_lexer->lexer_debug ("<INPUT_FILE_START>{ANY_INCLUDING_NL}"); |
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349 |
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350 curr_lexer->xunput (yytext[0]); |
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351 |
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352 // May be reset later if we see "function" or "classdef" appears |
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353 // as the first token. |
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354 curr_lexer->reading_script_file = true; |
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355 |
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356 curr_lexer->pop_start_state (); |
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357 |
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358 return curr_lexer->show_token (INPUT_FILE); |
4238 | 359 } |
360 | |
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361 <INPUT_FILE_START><<EOF>> { |
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362 curr_lexer->lexer_debug ("<INPUT_FILE_START><<EOF>>"); |
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363 |
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364 // May be reset later if we see "function" or "classdef" appears |
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365 // as the first token. |
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366 curr_lexer->reading_script_file = true; |
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367 |
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368 curr_lexer->pop_start_state (); |
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369 |
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370 return curr_lexer->show_token (INPUT_FILE); |
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371 } |
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372 |
968 | 373 %{ |
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374 // Help and other command-style functions. |
968 | 375 %} |
376 | |
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377 %{ |
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378 // Commands can be continued on a second line using the ellipsis. |
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379 // If an argument is in construction, it is completed. |
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380 %} |
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381 |
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382 <COMMAND_START>(\.\.\.){ANY_EXCEPT_NL}*{NL} { |
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383 curr_lexer->lexer_debug ("<COMMAND_START>(\\.\\.\\.){ANY_EXCEPT_NL}*{NL}"); |
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384 |
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385 COMMAND_ARG_FINISH; |
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386 |
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387 curr_lexer->input_line_number++; |
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388 curr_lexer->current_input_column = 1; |
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389 |
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390 HANDLE_STRING_CONTINUATION; |
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391 } |
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392 |
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393 %{ |
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394 // Commands normally end at the end of a line or a semicolon. |
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395 %} |
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396 |
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397 <COMMAND_START>({CCHAR}{ANY_EXCEPT_NL}*)?{NL} { |
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398 curr_lexer->lexer_debug ("<COMMAND_START>({CCHAR}{ANY_EXCEPT_NL}*)?{NL}"); |
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399 |
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400 COMMAND_ARG_FINISH; |
8535 | 401 |
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402 curr_lexer->input_line_number++; |
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403 curr_lexer->current_input_column = 1; |
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404 curr_lexer->looking_for_object_index = false; |
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405 curr_lexer->at_beginning_of_statement = true; |
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406 curr_lexer->pop_start_state (); |
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407 |
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408 return curr_lexer->handle_token ('\n'); |
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409 } |
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410 |
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411 <COMMAND_START>[\,\;] { |
18234 | 412 curr_lexer->lexer_debug ("<COMMAND_START>[\\,\\;]"); |
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413 |
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414 if (yytext[0] != ',' || curr_lexer->command_arg_paren_count == 0) |
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415 { |
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416 COMMAND_ARG_FINISH; |
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417 curr_lexer->looking_for_object_index = false; |
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418 curr_lexer->at_beginning_of_statement = true; |
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419 curr_lexer->pop_start_state (); |
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420 return curr_lexer->handle_token (yytext[0]); |
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421 } |
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422 else |
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423 curr_lexer->string_text += yytext; |
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424 |
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425 curr_lexer->current_input_column += yyleng; |
967 | 426 } |
1 | 427 |
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428 %{ |
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429 // Unbalanced parentheses serve as pseudo-quotes: they are included in |
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430 // the final argument string, but they cause parentheses and quotes to |
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431 // be slurped into that argument as well. |
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432 %} |
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433 |
18234 | 434 <COMMAND_START>[\(\[\{]* { |
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435 curr_lexer->lexer_debug ("<COMMAND_START>[\\(\\[\\{]+"); |
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436 |
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437 curr_lexer->command_arg_paren_count += yyleng; |
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438 curr_lexer->string_text += yytext; |
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439 curr_lexer->current_input_column += yyleng; |
967 | 440 } |
1 | 441 |
18234 | 442 <COMMAND_START>[\)\]\}]* { |
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443 curr_lexer->lexer_debug ("<COMMAND_START>[\\)\\]\\}]+"); |
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444 |
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445 curr_lexer->command_arg_paren_count -= yyleng; |
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446 curr_lexer->string_text += yytext; |
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447 curr_lexer->current_input_column += yyleng; |
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448 } |
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449 |
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450 %{ |
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451 // Handle quoted strings. Quoted strings that are not separated by |
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452 // whitespace from other argument text are combined with that previous |
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453 // text. For instance, |
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454 // |
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455 // command 'text1'"text2" |
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456 // |
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457 // has a single argument text1text2, not two separate arguments. |
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458 // That's why we must test to see if we are in command argument mode |
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459 // when processing the end of a string. |
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460 %} |
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461 |
4208 | 462 <COMMAND_START>[\"\'] { |
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463 curr_lexer->lexer_debug ("<COMMAND_START>[\\\"\\']"); |
8535 | 464 |
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465 if (curr_lexer->command_arg_paren_count == 0) |
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466 curr_lexer->begin_string (yytext[0] == '"' |
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467 ? DQ_STRING_START : SQ_STRING_START); |
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468 else |
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469 curr_lexer->string_text += yytext; |
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470 |
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471 curr_lexer->current_input_column += yyleng; |
975 | 472 } |
473 | |
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474 %{ |
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475 // In standard command argument processing, whitespace separates |
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476 // arguments. In the presence of unbalanced parentheses, it is |
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477 // incorporated into the argument. |
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478 %} |
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479 |
18234 | 480 <COMMAND_START>{S}* { |
481 curr_lexer->lexer_debug ("<COMMAND_START>{S}*"); | |
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482 |
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483 if (curr_lexer->command_arg_paren_count == 0) |
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484 COMMAND_ARG_FINISH; |
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485 else |
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486 curr_lexer->string_text += yytext; |
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487 |
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488 curr_lexer->current_input_column += yyleng; |
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489 } |
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490 |
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491 %{ |
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492 // Everything else is slurped into the command arguments. |
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493 %} |
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494 |
18234 | 495 <COMMAND_START>([\.]|[^#% \t\r\n\.\,\;\"\'\(\[\{\}\]\)]*) { |
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496 curr_lexer->lexer_debug ("<COMMAND_START>([\\.]|[^#% \\t\\r\\n\\.\\,\\;\\\"\\'\\(\\[\\{\\}\\]\\)]*"); |
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497 |
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498 curr_lexer->string_text += yytext; |
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499 curr_lexer->current_input_column += yyleng; |
967 | 500 } |
1 | 501 |
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502 <MATRIX_START>{S}* { |
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503 curr_lexer->lexer_debug ("<MATRIX_START>{S}*"); |
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504 |
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505 curr_lexer->mark_previous_token_trailing_space (); |
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506 } |
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507 |
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508 <MATRIX_START>{NL} { |
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509 curr_lexer->lexer_debug ("<MATRIX_START>{NL}"); |
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510 |
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511 curr_lexer->input_line_number++; |
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512 curr_lexer->current_input_column = 1; |
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513 |
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514 if (curr_lexer->nesting_level.is_paren ()) |
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515 curr_lexer->gripe_language_extension ("bare newline inside parentheses"); |
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516 else |
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517 { |
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518 int tok = curr_lexer->previous_token_value (); |
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519 |
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520 if (! (tok == ';' || tok == '[' || tok == '{')) |
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521 { |
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522 curr_lexer->xunput (';'); |
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523 // Adjust for semicolon that was not really in the input stream. |
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524 curr_lexer->current_input_column--; |
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525 } |
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526 } |
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527 } |
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528 |
968 | 529 %{ |
1 | 530 // For this and the next two rules, we're looking at ']', and we |
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531 // need to know if the next token is '=' or '=='. |
1 | 532 // |
533 // It would have been so much easier if the delimiters were simply | |
534 // different for the expression on the left hand side of the equals | |
535 // operator. | |
971 | 536 // |
537 // It's also a pain in the ass to decide whether to insert a comma | |
538 // after seeing a ']' character... | |
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539 |
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540 // FIXME: we need to handle block comments here. |
968 | 541 %} |
542 | |
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543 <MATRIX_START>\] { |
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544 curr_lexer->lexer_debug ("<MATRIX_START>\\]"); |
8535 | 545 |
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546 curr_lexer->looking_at_object_index.pop_front (); |
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547 |
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548 curr_lexer->looking_for_object_index = true; |
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549 curr_lexer->at_beginning_of_statement = false; |
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550 |
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551 curr_lexer->handle_close_bracket (']'); |
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552 |
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553 return curr_lexer->count_token (']'); |
4608 | 554 } |
555 | |
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556 %{ |
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557 // FIXME: we need to handle block comments here. |
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558 %} |
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559 |
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560 <MATRIX_START>\} { |
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561 curr_lexer->lexer_debug ("<MATRIX_START>\\}*"); |
8535 | 562 |
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563 curr_lexer->looking_at_object_index.pop_front (); |
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564 |
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565 curr_lexer->looking_for_object_index = true; |
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566 curr_lexer->at_beginning_of_statement = false; |
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567 |
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568 curr_lexer->handle_close_bracket ('}'); |
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569 |
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570 return curr_lexer->count_token ('}'); |
967 | 571 } |
1 | 572 |
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573 \[ { |
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574 curr_lexer->lexer_debug ("\\["); |
8535 | 575 |
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576 bool unput_comma = false; |
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577 |
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578 if (curr_lexer->whitespace_is_significant () |
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579 && curr_lexer->space_follows_previous_token ()) |
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580 { |
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581 int tok = curr_lexer->previous_token_value (); |
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582 |
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583 if (! (tok == '[' || tok == '{' |
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584 || curr_lexer->previous_token_is_binop ())) |
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585 unput_comma = true; |
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586 } |
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587 |
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588 if (unput_comma) |
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589 { |
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590 yyless (0); |
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591 curr_lexer->xunput (','); |
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592 // Adjust for comma that was not really in the input stream. |
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593 curr_lexer->current_input_column--; |
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594 } |
5615 | 595 else |
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596 { |
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597 curr_lexer->nesting_level.bracket (); |
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598 |
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599 curr_lexer->looking_at_object_index.push_front (false); |
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600 |
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601 curr_lexer->current_input_column += yyleng; |
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602 curr_lexer->looking_for_object_index = false; |
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603 curr_lexer->at_beginning_of_statement = false; |
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604 |
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605 if (curr_lexer->defining_func |
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606 && ! curr_lexer->parsed_function_name.top ()) |
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607 curr_lexer->looking_at_return_list = true; |
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608 else |
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609 curr_lexer->looking_at_matrix_or_assign_lhs = true; |
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610 |
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611 curr_lexer->decrement_promptflag (); |
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612 |
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613 curr_lexer->bracketflag++; |
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614 |
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615 curr_lexer->push_start_state (MATRIX_START); |
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616 |
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617 return curr_lexer->count_token ('['); |
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618 } |
967 | 619 } |
1 | 620 |
968 | 621 \] { |
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622 curr_lexer->lexer_debug ("\\]"); |
8535 | 623 |
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624 curr_lexer->nesting_level.remove (); |
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625 |
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626 curr_lexer->looking_at_object_index.pop_front (); |
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627 |
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628 curr_lexer->looking_for_object_index = true; |
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629 curr_lexer->at_beginning_of_statement = false; |
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630 |
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631 return curr_lexer->handle_token (']'); |
968 | 632 } |
633 | |
634 %{ | |
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635 // Gobble comments. |
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636 %} |
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637 |
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638 %{ |
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639 // Start of a block comment. If the comment marker appears immediately |
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640 // after a block of full-line comments, finish the full line comment |
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641 // block. |
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642 %} |
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643 |
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644 ^{S}*{CCHAR}\{{S}*{NL} { |
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645 curr_lexer->lexer_debug ("^{S}*{CCHAR}\\{{S}*{NL}"); |
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646 |
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647 yyless (0); |
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648 |
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649 if (curr_lexer->start_state () == LINE_COMMENT_START) |
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650 { |
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651 if (! curr_lexer->comment_text.empty ()) |
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652 curr_lexer->finish_comment (octave_comment_elt::full_line); |
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653 |
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654 curr_lexer->pop_start_state (); |
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655 } |
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656 |
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657 curr_lexer->decrement_promptflag (); |
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658 |
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659 curr_lexer->push_start_state (BLOCK_COMMENT_START); |
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660 |
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661 } |
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662 |
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663 <BLOCK_COMMENT_START>^{S}*{CCHAR}\{{S}*{NL} { |
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664 curr_lexer->lexer_debug ("<BLOCK_COMMENT_START>^{S}*{CCHAR}\\{{S}*{NL}"); |
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665 |
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666 curr_lexer->input_line_number++; |
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667 curr_lexer->current_input_column = 1; |
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668 |
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669 if (curr_lexer->block_comment_nesting_level) |
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670 curr_lexer->comment_text = "\n"; |
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671 |
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672 curr_lexer->block_comment_nesting_level++; |
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673 } |
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674 |
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675 %{ |
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676 // End of a block comment. If this block comment is nested inside |
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677 // another, wait for the outermost block comment block to be closed |
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678 // before storing the comment. |
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679 %} |
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680 |
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681 <BLOCK_COMMENT_START>^{S}*{CCHAR}\}{S}*{NL} { |
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682 curr_lexer->lexer_debug ("<BLOCK_COMMENT_START>^{S}*{CCHAR}\\}{S}*{NL}"); |
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683 |
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684 curr_lexer->input_line_number++; |
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685 curr_lexer->current_input_column = 1; |
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686 |
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687 if (curr_lexer->block_comment_nesting_level > 1) |
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688 curr_lexer->comment_text = "\n"; |
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689 else |
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690 curr_lexer->finish_comment (octave_comment_elt::block); |
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691 |
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692 curr_lexer->block_comment_nesting_level--; |
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693 |
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694 if (curr_lexer->block_comment_nesting_level == 0) |
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695 { |
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696 curr_lexer->increment_promptflag (); |
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697 |
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698 curr_lexer->pop_start_state (); |
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699 } |
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700 } |
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701 |
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702 %{ |
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703 // Body of a block comment. |
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704 %} |
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705 |
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|
706 <BLOCK_COMMENT_START>{ANY_EXCEPT_NL}*{NL} { |
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
707 curr_lexer->lexer_debug ("<BLOCK_COMMENT_START>{ANY_EXCEPT_NL}*{NL}"); |
16228
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revamp most comment handling
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parents:
16224
diff
changeset
|
708 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
709 curr_lexer->input_line_number++; |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
16224
diff
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|
710 curr_lexer->current_input_column = 1; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
711 curr_lexer->comment_text += yytext; |
e19b1632d7c1
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parents:
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diff
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|
712 } |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
713 |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
714 %{ |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
715 // Full-line or end-of-line comment. |
e19b1632d7c1
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parents:
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diff
changeset
|
716 %} |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
717 |
18311
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
718 {S}*{CCHAR}{ANY_EXCEPT_NL}*{NL} { |
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
719 curr_lexer->lexer_debug ("{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL}"); |
16228
e19b1632d7c1
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parents:
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diff
changeset
|
720 |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
721 curr_lexer->push_start_state (LINE_COMMENT_START); |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
722 yyless (0); |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
723 } |
e19b1632d7c1
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John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
724 |
18311
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
725 <LINE_COMMENT_START>{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL} { |
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
726 curr_lexer->lexer_debug ("<LINE_COMMENT_START>{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL}"); |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
727 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
728 bool full_line_comment = curr_lexer->current_input_column == 1; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
729 curr_lexer->input_line_number++; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
730 curr_lexer->current_input_column = 1; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
731 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
732 bool have_space = false; |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
733 size_t len = yyleng; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
734 size_t i = 0; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
735 while (i < len) |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
736 { |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
737 char c = yytext[i]; |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
738 if (c == ' ' || c == '\t') |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
739 { |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
740 have_space = true; |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
741 i++; |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
742 } |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
743 else |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
744 break; |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
745 } |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
746 |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
747 size_t num_comment_chars = 0; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
748 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
749 while (i < len) |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
750 { |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
751 char c = yytext[i]; |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
752 if (c == '#' || c == '%') |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
753 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
754 num_comment_chars++; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
755 i++; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
756 } |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
757 else |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
758 break; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
759 } |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
760 |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
761 curr_lexer->comment_text += &yytext[i]; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
762 |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
763 if (full_line_comment) |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
764 { |
17882
cf3f828f401c
only allow [%#]{ as block comment start (bug #40513)
John W. Eaton <jwe@octave.org>
parents:
17861
diff
changeset
|
765 if (num_comment_chars == 1 && yytext[i++] == '{') |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
766 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
767 bool looks_like_block_comment = true; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
768 |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
769 while (i < len) |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
770 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
771 char c = yytext[i++]; |
18135
7af19113ec43
Fix block comments for files with CRLF line endings (bug #40894)
John Donoghue <john.donoghue@ieee.org>
parents:
17882
diff
changeset
|
772 if (! (c == ' ' || c == '\t' || c == '\n' || c == '\r')) |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
773 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
774 looks_like_block_comment = false; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
775 break; |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
776 } |
19593
446c46af4b42
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
18974
diff
changeset
|
777 } |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
778 |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
779 if (looks_like_block_comment) |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
780 { |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
781 yyless (0); |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
782 |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
783 curr_lexer->finish_comment (octave_comment_elt::full_line); |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
784 |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
785 curr_lexer->pop_start_state (); |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
786 } |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
787 } |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
788 } |
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
789 else |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
790 { |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
791 if (have_space) |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
792 curr_lexer->mark_previous_token_trailing_space (); |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
793 |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
794 curr_lexer->finish_comment (octave_comment_elt::end_of_line); |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
795 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
796 curr_lexer->pop_start_state (); |
16337
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
John W. Eaton <jwe@octave.org>
parents:
16334
diff
changeset
|
797 |
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
John W. Eaton <jwe@octave.org>
parents:
16334
diff
changeset
|
798 curr_lexer->xunput ('\n'); |
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
John W. Eaton <jwe@octave.org>
parents:
16334
diff
changeset
|
799 curr_lexer->input_line_number--; |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
800 } |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
801 } |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
802 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
803 %{ |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
804 // End of a block of full-line comments. |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
805 %} |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
806 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
807 <LINE_COMMENT_START>{ANY_INCLUDING_NL} { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
808 curr_lexer->lexer_debug ("<LINE_COMMENT_START>{ANY_INCLUDING_NL}"); |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
809 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
810 curr_lexer->xunput (yytext[0]); |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
811 |
19593
446c46af4b42
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
18974
diff
changeset
|
812 curr_lexer->finish_comment (octave_comment_elt::full_line); |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
813 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
814 curr_lexer->pop_start_state (); |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
815 } |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
816 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
817 %{ |
17722
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
818 // End of a block of full-line comments. |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
819 %} |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
820 |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
821 <LINE_COMMENT_START><<EOF>> { |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
822 curr_lexer->lexer_debug ("<LINE_COMMENT_START><<EOF>>"); |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
823 |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
824 curr_lexer->finish_comment (octave_comment_elt::full_line); |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
825 |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
826 curr_lexer->pop_start_state (); |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
827 } |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
828 |
5b0036d89d4a
allow "help dir-name" to work when comment block ends at EOF (bug #40342)
John W. Eaton <jwe@octave.org>
parents:
17693
diff
changeset
|
829 %{ |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
830 // Double-quoted character strings. |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
831 %} |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
832 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
833 <DQ_STRING_START>\"\" { |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
834 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\"\\\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
835 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
836 curr_lexer->current_input_column += yyleng; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
837 curr_lexer->string_text += '"'; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
838 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
839 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
840 <DQ_STRING_START>\" { |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
841 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\""); |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
842 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
843 curr_lexer->current_input_column++; |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
844 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
845 curr_lexer->pop_start_state (); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
846 |
18224
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
847 if (curr_lexer->start_state() != COMMAND_START) |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
848 { |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
849 curr_lexer->looking_for_object_index = true; |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
850 curr_lexer->at_beginning_of_statement = false; |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
851 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
852 curr_lexer->push_token (new token (DQ_STRING, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
853 curr_lexer->string_text, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
854 curr_lexer->string_line, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
855 curr_lexer->string_column)); |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
856 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
857 curr_lexer->string_text = ""; |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
858 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
859 return curr_lexer->count_token_internal (DQ_STRING); |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
860 } |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
861 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
862 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
863 <DQ_STRING_START>\\[0-7]{1,3} { |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
864 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\[0-7]{1,3}"); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
865 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
866 curr_lexer->current_input_column += yyleng; |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
867 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
868 int result; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
869 sscanf (yytext+1, "%o", &result); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
870 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
871 if (result > 0xff) |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
872 error ("invalid octal escape sequence in character string"); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
873 else |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
874 curr_lexer->string_text += static_cast<unsigned char> (result); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
875 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
876 |
17244
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
877 <DQ_STRING_START>\\x[0-9a-fA-F]+ { |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
878 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\x[0-9a-fA-F]+"); |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
879 |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
880 curr_lexer->current_input_column += yyleng; |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
881 |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
882 int result; |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
883 sscanf (yytext+2, "%x", &result); |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
884 |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
885 // Truncate the value silently instead of checking the range like |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
886 // we do for octal above. This is to match C/C++ where any number |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
887 // of digits is allowed but the value is implementation-defined if |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
888 // it exceeds the range of the character type. |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
889 curr_lexer->string_text += static_cast<unsigned char> (result); |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
890 } |
9de751a10910
Add support for hexadecimal escape sequences in double-quoted strings (bug #39775)
Mike Miller <mtmiller@ieee.org>
parents:
16914
diff
changeset
|
891 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
892 <DQ_STRING_START>"\\a" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
893 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\a\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
894 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
895 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
896 curr_lexer->string_text += '\a'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
897 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
898 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
899 <DQ_STRING_START>"\\b" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
900 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\b\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
901 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
902 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
903 curr_lexer->string_text += '\b'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
904 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
905 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
906 <DQ_STRING_START>"\\f" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
907 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\f\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
908 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
909 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
910 curr_lexer->string_text += '\f'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
911 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
912 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
913 <DQ_STRING_START>"\\n" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
914 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\n\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
915 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
916 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
917 curr_lexer->string_text += '\n'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
918 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
919 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
920 <DQ_STRING_START>"\\r" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
921 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\r\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
922 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
923 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
924 curr_lexer->string_text += '\r'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
925 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
926 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
927 <DQ_STRING_START>"\\t" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
928 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\t\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
929 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
930 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
931 curr_lexer->string_text += '\t'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
932 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
933 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
934 <DQ_STRING_START>"\\v" { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
935 curr_lexer->lexer_debug ("<DQ_STRING_START>\"\\\\v\""); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
936 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
937 curr_lexer->current_input_column += yyleng; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
938 curr_lexer->string_text += '\v'; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
939 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
940 |
18428
4d2e15abe5e7
Disallow comments after continuation in double-quoted strings (bug #41415).
Stefan Mahr <dac922@gmx.de>
parents:
18319
diff
changeset
|
941 <DQ_STRING_START>(\.\.\.){S}*{NL} { |
4d2e15abe5e7
Disallow comments after continuation in double-quoted strings (bug #41415).
Stefan Mahr <dac922@gmx.de>
parents:
18319
diff
changeset
|
942 curr_lexer->lexer_debug ("<DQ_STRING_START>(\\.\\.\\.){S}*{NL}"); |
16914
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
943 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
944 static const char *msg = "'...' continuations in double-quoted character strings are obsolete and will not be allowed in a future version of Octave; please use '\\' instead"; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
945 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
946 std::string nm = curr_lexer->fcn_file_full_name; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
947 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
948 if (nm.empty ()) |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
949 warning_with_id ("Octave:deprecated-syntax", "%s", msg); |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
950 else |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
951 warning_with_id ("Octave:deprecated-syntax", |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
952 "%s; near line %d of file '%s'", msg, |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
953 curr_lexer->input_line_number, nm.c_str ()); |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
954 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
955 HANDLE_STRING_CONTINUATION; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
956 } |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
957 |
18428
4d2e15abe5e7
Disallow comments after continuation in double-quoted strings (bug #41415).
Stefan Mahr <dac922@gmx.de>
parents:
18319
diff
changeset
|
958 <DQ_STRING_START>\\{S}+{NL} { |
4d2e15abe5e7
Disallow comments after continuation in double-quoted strings (bug #41415).
Stefan Mahr <dac922@gmx.de>
parents:
18319
diff
changeset
|
959 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\{S}+{NL}"); |
16914
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
960 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
961 static const char *msg = "white space and comments after continuation markers in double-quoted character strings are obsolete and will not be allowed in a future version of Octave"; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
962 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
963 std::string nm = curr_lexer->fcn_file_full_name; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
964 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
965 if (nm.empty ()) |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
966 warning_with_id ("Octave:deprecated-syntax", "%s", msg); |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
967 else |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
968 warning_with_id ("Octave:deprecated-syntax", |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
969 "%s; near line %d of file '%s'", msg, |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
970 curr_lexer->input_line_number, nm.c_str ()); |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
971 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
972 HANDLE_STRING_CONTINUATION; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
973 } |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
974 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
975 <DQ_STRING_START>\\{NL} { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
976 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\{NL}"); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
977 |
16914
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
978 HANDLE_STRING_CONTINUATION; |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
979 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
980 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
981 <DQ_STRING_START>\\. { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
982 curr_lexer->lexer_debug ("<DQ_STRING_START>\\\\."); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
983 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
984 curr_lexer->current_input_column += yyleng; |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
985 curr_lexer->string_text += yytext[1]; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
986 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
987 |
16914
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
988 <DQ_STRING_START>\. { |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
989 curr_lexer->lexer_debug ("<DQ_STRING_START>\\."); |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
990 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
991 curr_lexer->current_input_column++; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
992 curr_lexer->string_text += yytext[0]; |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
993 } |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
994 |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
995 <DQ_STRING_START>[^\.\\\r\n\"]+ { |
bc12849bb6cc
deprecate ... and whitespace/comments after continuation markers in strings
John W. Eaton <jwe@octave.org>
parents:
16904
diff
changeset
|
996 curr_lexer->lexer_debug ("<DQ_STRING_START>[^\\.\\\\\\r\\n\\\"]+"); |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
997 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
998 curr_lexer->current_input_column += yyleng; |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
999 curr_lexer->string_text += yytext; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1000 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1001 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1002 <DQ_STRING_START>{NL} { |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1003 curr_lexer->lexer_debug ("<DQ_STRING_START>{NL}"); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1004 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1005 curr_lexer->input_line_number++; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1006 curr_lexer->current_input_column = 1; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1007 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1008 error ("unterminated character string constant"); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1009 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1010 return LEXICAL_ERROR; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1011 } |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1012 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1013 %{ |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1014 // Single-quoted character strings. |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1015 %} |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1016 |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1017 <SQ_STRING_START>\'\' { |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1018 curr_lexer->lexer_debug ("<SQ_STRING_START>\\'\\'"); |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1019 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1020 curr_lexer->current_input_column += yyleng; |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1021 curr_lexer->string_text += '\''; |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1022 } |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1023 |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1024 <SQ_STRING_START>\' { |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1025 curr_lexer->lexer_debug ("<SQ_STRING_START>\\'"); |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1026 |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1027 curr_lexer->current_input_column++; |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1028 |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1029 curr_lexer->pop_start_state (); |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1030 |
18224
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1031 if (curr_lexer->start_state() != COMMAND_START) |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1032 { |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1033 curr_lexer->looking_for_object_index = true; |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1034 curr_lexer->at_beginning_of_statement = false; |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1035 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1036 curr_lexer->push_token (new token (SQ_STRING, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1037 curr_lexer->string_text, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1038 curr_lexer->string_line, |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1039 curr_lexer->string_column)); |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1040 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1041 curr_lexer->string_text = ""; |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1042 |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1043 return curr_lexer->count_token_internal (SQ_STRING); |
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
1044 } |
16904
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1045 } |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1046 |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1047 <SQ_STRING_START>[^\'\n\r]+ { |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1048 curr_lexer->lexer_debug ("<SQ_STRING_START>[^\\'\\n\\r]+"); |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1049 |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1050 curr_lexer->current_input_column += yyleng; |
f29dd5a7591d
more tweaks for parsing character strings
John W. Eaton <jwe@octave.org>
parents:
16903
diff
changeset
|
1051 curr_lexer->string_text += yytext; |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1052 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1053 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1054 <SQ_STRING_START>{NL} { |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1055 curr_lexer->lexer_debug ("<SQ_STRING_START>{NL}"); |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1056 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1057 curr_lexer->input_line_number++; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1058 curr_lexer->current_input_column = 1; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1059 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1060 error ("unterminated character string constant"); |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
1061 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1062 return LEXICAL_ERROR; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1063 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1064 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1065 %{ |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1066 // Fully-qualified identifiers (used for classdef). |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1067 %} |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1068 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1069 <FQ_IDENT_START>{FQIDENT} { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1070 curr_lexer->lexer_debug ("<FQ_IDENT_START>{FQIDENT}"); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1071 curr_lexer->pop_start_state (); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1072 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1073 int id_tok = curr_lexer->handle_fq_identifier (); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1074 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1075 if (id_tok >= 0) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1076 { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1077 curr_lexer->looking_for_object_index = true; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1078 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1079 return curr_lexer->count_token_internal (id_tok); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1080 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1081 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1082 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1083 <FQ_IDENT_START>{S}+ { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1084 curr_lexer->current_input_column += yyleng; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1085 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1086 curr_lexer->mark_previous_token_trailing_space (); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1087 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1088 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1089 <FQ_IDENT_START>. { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1090 yyless (0); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1091 curr_lexer->pop_start_state (); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1092 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1093 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1094 %{ |
968 | 1095 // Imaginary numbers. |
1096 %} | |
1097 | |
1098 {NUMBER}{Im} { | |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1099 curr_lexer->lexer_debug ("{NUMBER}{Im}"); |
8535 | 1100 |
16361
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1101 if (curr_lexer->previous_token_may_be_command () |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1102 && curr_lexer->space_follows_previous_token ()) |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1103 { |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1104 yyless (0); |
16361
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1105 curr_lexer->push_start_state (COMMAND_START); |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1106 } |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1107 else |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1108 { |
16361
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1109 int tok = curr_lexer->previous_token_value (); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1110 |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1111 if (curr_lexer->whitespace_is_significant () |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1112 && curr_lexer->space_follows_previous_token () |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1113 && ! (tok == '[' || tok == '{' |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1114 || curr_lexer->previous_token_is_binop ())) |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1115 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1116 yyless (0); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1117 unput (','); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1118 } |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1119 else |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1120 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1121 curr_lexer->handle_number (); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1122 return curr_lexer->count_token_internal (IMAG_NUM); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1123 } |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1124 } |
968 | 1125 } |
1126 | |
1127 %{ | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
1128 // Real numbers. Don't grab the '.' part of a dot operator as part of |
968 | 1129 // the constant. |
1130 %} | |
1131 | |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
1132 {D}{D_}*/\.[\*/\\^\'] | |
968 | 1133 {NUMBER} { |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
1134 curr_lexer->lexer_debug ("{D}{D_}*/\\.[\\*/\\\\^\\']|{NUMBER}"); |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1135 |
16361
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1136 if (curr_lexer->previous_token_may_be_command () |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1137 && curr_lexer->space_follows_previous_token ()) |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1138 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1139 yyless (0); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1140 curr_lexer->push_start_state (COMMAND_START); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1141 } |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1142 else |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1143 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1144 int tok = curr_lexer->previous_token_value (); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1145 |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1146 if (curr_lexer->whitespace_is_significant () |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1147 && curr_lexer->space_follows_previous_token () |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1148 && ! (tok == '[' || tok == '{' |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1149 || curr_lexer->previous_token_is_binop ())) |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1150 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1151 yyless (0); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1152 unput (','); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1153 } |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1154 else |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1155 { |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1156 curr_lexer->handle_number (); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1157 return curr_lexer->count_token_internal (NUM); |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1158 } |
e1dcd834751f
and foo NUMBER as command syntax (bug #38565)
John W. Eaton <jwe@octave.org>
parents:
16360
diff
changeset
|
1159 } |
968 | 1160 } |
1161 | |
1162 %{ | |
1163 // Eat whitespace. Whitespace inside matrix constants is handled by | |
4208 | 1164 // the <MATRIX_START> start state code above. |
968 | 1165 %} |
1166 | |
16363
d16c255299c0
recognize block comment begin while processing line comments (bug #38559)
John W. Eaton <jwe@octave.org>
parents:
16361
diff
changeset
|
1167 {S}+ { |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1168 curr_lexer->current_input_column += yyleng; |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
1169 |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
1170 curr_lexer->mark_previous_token_trailing_space (); |
967 | 1171 } |
1172 | |
968 | 1173 %{ |
17247
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1174 // Continuation lines. Allow arbitrary text after continuations. |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1175 %} |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1176 |
18311
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
1177 \.\.\.{ANY_EXCEPT_NL}*{NL} { |
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
1178 curr_lexer->lexer_debug ("\\.\\.\\.{ANY_EXCEPT_NL}*{NL}"); |
17247
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1179 |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1180 curr_lexer->handle_continuation (); |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1181 } |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1182 |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1183 %{ |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1184 // Deprecated C preprocessor style continuation markers. |
968 | 1185 %} |
1186 | |
17246
8be8a65d3ca8
Ignore anything after the continuation marker '...' (bug #38653)
Stefan Mahr <dac922@gmx.de>
parents:
17244
diff
changeset
|
1187 \\{S}*{NL} | |
18311
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
1188 \\{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL} { |
b14cdae65abd
prevent lexer from matching patterns across CR line endings (bug #41281)
John W. Eaton <jwe@octave.org>
parents:
18246
diff
changeset
|
1189 curr_lexer->lexer_debug ("\\\\{S}*{NL}|\\\\{S}*{CCHAR}{ANY_EXCEPT_NL}*{NL}"); |
17247
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1190 |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1191 static const char *msg = "using continuation marker \\ outside of double quoted strings is deprecated and will be removed in a future version of Octave"; |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1192 |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1193 std::string nm = curr_lexer->fcn_file_full_name; |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1194 |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1195 if (nm.empty ()) |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1196 warning_with_id ("Octave:deprecated-syntax", "%s", msg); |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1197 else |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1198 warning_with_id ("Octave:deprecated-syntax", |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1199 "%s; near line %d of file '%s'", msg, |
e993fa124b46
Deprecate \ as continuation marker outside of double-quoted character strings.
John W. Eaton <jwe@octave.org>
parents:
17246
diff
changeset
|
1200 curr_lexer->input_line_number, nm.c_str ()); |
17343
6470a113eae2
correctly handle deprecated \ continuation markers
John W. Eaton <jwe@octave.org>
parents:
17247
diff
changeset
|
1201 |
6470a113eae2
correctly handle deprecated \ continuation markers
John W. Eaton <jwe@octave.org>
parents:
17247
diff
changeset
|
1202 curr_lexer->handle_continuation (); |
967 | 1203 } |
1 | 1204 |
968 | 1205 %{ |
1206 // End of file. | |
1207 %} | |
1208 | |
967 | 1209 <<EOF>> { |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
1210 return curr_lexer->handle_end_of_input (); |
967 | 1211 } |
1 | 1212 |
968 | 1213 %{ |
16259
0b5ab09dfce4
2/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16257
diff
changeset
|
1214 // Identifiers. |
18394
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1215 |
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1216 // Don't allow get and set to be recognized as keywords if they are |
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1217 // followed by "(". |
968 | 1218 %} |
1219 | |
18394
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1220 (set|get)/{S}*\( { |
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1221 HANDLE_IDENTIFIER ("(set|get)/{S}*\\(", true); |
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1222 } |
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1223 |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1224 {IDENT} { |
18394
fc0ce9eb9d82
don't allow get and set followed by "(" to be recognized as keywords.
John W. Eaton <jwe@octave.org>
parents:
18341
diff
changeset
|
1225 HANDLE_IDENTIFIER ("{IDENT}", false); |
967 | 1226 } |
1 | 1227 |
968 | 1228 %{ |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1229 // Superclass method identifiers. |
9476 | 1230 %} |
1231 | |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1232 {IDENT}@{FQIDENT} { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1233 curr_lexer->lexer_debug ("{IDENT}@{FQIDENT}"); |
9476 | 1234 |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1235 if (curr_lexer->previous_token_may_be_command ()) |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1236 { |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1237 yyless (0); |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1238 curr_lexer->push_start_state (COMMAND_START); |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1239 } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1240 else |
9476 | 1241 { |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1242 int id_tok = curr_lexer->handle_superclass_identifier (); |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1243 |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1244 if (id_tok >= 0) |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1245 { |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1246 curr_lexer->looking_for_object_index = true; |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1247 |
16683
e1c6ad54259f
maint: periodic merge of default to classdef
John W. Eaton <jwe@octave.org>
diff
changeset
|
1248 return curr_lexer->count_token_internal (id_tok); |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1249 } |
9476 | 1250 } |
1251 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1252 |
9476 | 1253 %{ |
1254 // Metaclass query | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1255 %} |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1256 |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1257 \?{FQIDENT} { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
1258 curr_lexer->lexer_debug ("\\?{FQIDENT}"); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1259 |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1260 if (curr_lexer->previous_token_may_be_command () |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1261 && curr_lexer->space_follows_previous_token ()) |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1262 { |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1263 yyless (0); |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1264 curr_lexer->push_start_state (COMMAND_START); |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1265 } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1266 else |
9476 | 1267 { |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1268 int id_tok = curr_lexer->handle_meta_identifier (); |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1269 |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1270 if (id_tok >= 0) |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1271 { |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1272 curr_lexer->looking_for_object_index = true; |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1273 |
16683
e1c6ad54259f
maint: periodic merge of default to classdef
John W. Eaton <jwe@octave.org>
diff
changeset
|
1274 return curr_lexer->count_token_internal (id_tok); |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1275 } |
9476 | 1276 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1277 } |
9476 | 1278 |
4930 | 1279 "@" { |
18492
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1280 curr_lexer->lexer_debug ("@"); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1281 |
16334
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1282 if (curr_lexer->previous_token_may_be_command () |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1283 && curr_lexer->space_follows_previous_token ()) |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1284 { |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1285 yyless (0); |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1286 curr_lexer->push_start_state (COMMAND_START); |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1287 } |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1288 else |
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1289 { |
18492
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1290 int tok = curr_lexer->previous_token_value (); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1291 |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1292 if (curr_lexer->whitespace_is_significant () |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1293 && curr_lexer->space_follows_previous_token () |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1294 && ! (tok == '[' || tok == '{' |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1295 || curr_lexer->previous_token_is_binop ())) |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1296 { |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1297 yyless (0); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1298 unput (','); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1299 } |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1300 else |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1301 { |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1302 curr_lexer->current_input_column++; |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1303 |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1304 curr_lexer->looking_at_function_handle++; |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1305 curr_lexer->looking_for_object_index = false; |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1306 curr_lexer->at_beginning_of_statement = false; |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1307 |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1308 return curr_lexer->count_token ('@'); |
e4c319ed2414
Fix regression, allow space-separated cell array of function handles (bug #41569)
Mike Miller <mtmiller@ieee.org>
parents:
18428
diff
changeset
|
1309 } |
16334
06aa4c0f2018
handle foo @... as command syntax
John W. Eaton <jwe@octave.org>
parents:
16325
diff
changeset
|
1310 } |
4342 | 1311 } |
1312 | |
1313 %{ | |
968 | 1314 // A new line character. New line characters inside matrix constants |
4208 | 1315 // are handled by the <MATRIX_START> start state code above. If closest |
985 | 1316 // nesting is inside parentheses, don't return a row separator. |
968 | 1317 %} |
1318 | |
967 | 1319 {NL} { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1320 curr_lexer->lexer_debug ("{NL}"); |
8535 | 1321 |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1322 curr_lexer->input_line_number++; |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1323 curr_lexer->current_input_column = 1; |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1324 |
16309
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1325 if (curr_lexer->nesting_level.is_paren ()) |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1326 { |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1327 curr_lexer->at_beginning_of_statement = false; |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
1328 curr_lexer->gripe_language_extension |
16309
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1329 ("bare newline inside parentheses"); |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1330 } |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1331 else if (curr_lexer->nesting_level.none () |
e608de76742c
allow newline to terminate anonymous function definition
John W. Eaton <jwe@octave.org>
parents:
16299
diff
changeset
|
1332 || curr_lexer->nesting_level.is_anon_fcn_body ()) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
1333 { |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1334 curr_lexer->at_beginning_of_statement = true; |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1335 return curr_lexer->count_token ('\n'); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
1336 } |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1337 else if (curr_lexer->nesting_level.is_bracket_or_brace ()) |
985 | 1338 return LEXICAL_ERROR; |
967 | 1339 } |
1 | 1340 |
968 | 1341 %{ |
1342 // Single quote can either be the beginning of a string or a transpose | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1343 // operator. |
968 | 1344 %} |
1345 | |
967 | 1346 "'" { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1347 curr_lexer->lexer_debug ("'"); |
8535 | 1348 |
16275
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
1349 if (curr_lexer->previous_token_may_be_command () |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
1350 && curr_lexer->space_follows_previous_token ()) |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
1351 { |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
1352 curr_lexer->current_input_column++; |
16275
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
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|
1353 curr_lexer->push_start_state (COMMAND_START); |
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parents:
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diff
changeset
|
1354 curr_lexer->begin_string (SQ_STRING_START); |
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|
1355 } |
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parents:
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diff
changeset
|
1356 else if (curr_lexer->at_beginning_of_statement) |
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parents:
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diff
changeset
|
1357 { |
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parents:
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|
1358 curr_lexer->current_input_column++; |
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parents:
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|
1359 curr_lexer->begin_string (SQ_STRING_START); |
16681
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|
1360 } |
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|
1361 else |
967 | 1362 { |
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|
1363 int tok = curr_lexer->previous_token_value (); |
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parents:
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|
1364 |
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|
1365 if (curr_lexer->whitespace_is_significant ()) |
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1366 { |
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|
1367 if (curr_lexer->space_follows_previous_token ()) |
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|
1368 { |
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1369 if (tok == '[' || tok == '{' |
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|
1370 || curr_lexer->previous_token_is_binop ()) |
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parents:
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|
1371 { |
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|
1372 curr_lexer->current_input_column++; |
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|
1373 curr_lexer->begin_string (SQ_STRING_START); |
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|
1374 } |
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|
1375 else |
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|
1376 { |
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diff
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|
1377 yyless (0); |
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parents:
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diff
changeset
|
1378 curr_lexer->xunput (','); |
16281
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parents:
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changeset
|
1379 // Adjust for comma that was not really in the input stream. |
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|
1380 curr_lexer->current_input_column--; |
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1381 } |
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|
1382 } |
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|
1383 else |
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|
1384 { |
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1385 if (tok == '[' || tok == '{' |
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|
1386 || curr_lexer->previous_token_is_binop () |
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|
1387 || curr_lexer->previous_token_is_keyword ()) |
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|
1388 { |
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|
1389 curr_lexer->current_input_column++; |
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1390 curr_lexer->begin_string (SQ_STRING_START); |
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1391 } |
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|
1392 else |
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* lex.ll, oct-parse.in.yy (HERMITIAN): Rename token from QUOTE.
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parents:
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|
1393 return curr_lexer->count_token (HERMITIAN); |
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1394 } |
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1395 } |
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|
1396 else |
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|
1397 { |
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1398 if (! tok || tok == '[' || tok == '{' || tok == '(' |
16267
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parents:
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|
1399 || curr_lexer->previous_token_is_binop () |
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parents:
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|
1400 || curr_lexer->previous_token_is_keyword ()) |
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|
1401 { |
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|
1402 curr_lexer->current_input_column++; |
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parents:
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|
1403 curr_lexer->begin_string (SQ_STRING_START); |
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|
1404 } |
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|
1405 else |
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|
1406 return curr_lexer->count_token (HERMITIAN); |
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diff
changeset
|
1407 } |
967 | 1408 } |
1409 } | |
1 | 1410 |
968 | 1411 %{ |
971 | 1412 // Double quotes always begin strings. |
1413 %} | |
1414 | |
973 | 1415 \" { |
16903
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improve character string handling in the lexer
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parents:
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changeset
|
1416 curr_lexer->lexer_debug ("\\\""); |
8535 | 1417 |
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|
1418 if (curr_lexer->previous_token_may_be_command () |
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diff
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|
1419 && curr_lexer->space_follows_previous_token ()) |
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parents:
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diff
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|
1420 { |
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parents:
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|
1421 curr_lexer->current_input_column++; |
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parents:
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diff
changeset
|
1422 curr_lexer->push_start_state (COMMAND_START); |
16898
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rewrite string parsing to avoid unlimited lookahead
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changeset
|
1423 curr_lexer->begin_string (DQ_STRING_START); |
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|
1424 } |
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diff
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|
1425 else |
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|
1426 { |
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|
1427 int tok = curr_lexer->previous_token_value (); |
dd7de0345124
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parents:
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diff
changeset
|
1428 |
dd7de0345124
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parents:
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diff
changeset
|
1429 if (curr_lexer->whitespace_is_significant ()) |
16261
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|
1430 { |
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diff
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|
1431 if (curr_lexer->space_follows_previous_token ()) |
dd7de0345124
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parents:
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diff
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|
1432 { |
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diff
changeset
|
1433 if (tok == '[' || tok == '{' |
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parents:
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diff
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|
1434 || curr_lexer->previous_token_is_binop ()) |
dd7de0345124
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parents:
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|
1435 { |
dd7de0345124
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parents:
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diff
changeset
|
1436 curr_lexer->current_input_column++; |
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rewrite string parsing to avoid unlimited lookahead
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parents:
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diff
changeset
|
1437 curr_lexer->begin_string (DQ_STRING_START); |
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|
1438 } |
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parents:
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changeset
|
1439 else |
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parents:
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diff
changeset
|
1440 { |
dd7de0345124
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changeset
|
1441 yyless (0); |
dd7de0345124
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parents:
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diff
changeset
|
1442 curr_lexer->xunput (','); |
16281
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adjust line and column info when inserting new text in lexer input stream
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parents:
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diff
changeset
|
1443 // Adjust for comma that was not really in the input stream. |
1bbc2fc552cf
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parents:
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diff
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|
1444 curr_lexer->current_input_column--; |
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|
1445 } |
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changeset
|
1446 } |
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changeset
|
1447 else |
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|
1448 { |
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changeset
|
1449 curr_lexer->current_input_column++; |
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changeset
|
1450 curr_lexer->begin_string (DQ_STRING_START); |
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|
1451 } |
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changeset
|
1452 } |
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changeset
|
1453 else |
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changeset
|
1454 { |
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changeset
|
1455 curr_lexer->current_input_column++; |
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changeset
|
1456 curr_lexer->begin_string (DQ_STRING_START); |
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|
1457 } |
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changeset
|
1458 } |
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changeset
|
1459 } |
971 | 1460 |
1461 %{ | |
968 | 1462 // Other operators. |
1463 %} | |
1464 | |
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|
1465 ":" { CMD_OR_OP (":", ':', true); } |
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diff
changeset
|
1466 ".+" { CMD_OR_OP (".+", EPLUS, false); } |
dd7de0345124
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changeset
|
1467 ".-" { CMD_OR_OP (".-", EMINUS, false); } |
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changeset
|
1468 ".*" { CMD_OR_OP (".*", EMUL, true); } |
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|
1469 "./" { CMD_OR_OP ("./", EDIV, true); } |
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changeset
|
1470 ".\\" { CMD_OR_OP (".\\", ELEFTDIV, true); } |
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|
1471 ".^" { CMD_OR_OP (".^", EPOW, true); } |
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|
1472 ".**" { CMD_OR_OP (".**", EPOW, false); } |
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|
1473 "<=" { CMD_OR_OP ("<=", EXPR_LE, true); } |
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|
1474 "==" { CMD_OR_OP ("==", EXPR_EQ, true); } |
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changeset
|
1475 "~=" { CMD_OR_OP ("~=", EXPR_NE, true); } |
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|
1476 "!=" { CMD_OR_OP ("!=", EXPR_NE, false); } |
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|
1477 ">=" { CMD_OR_OP (">=", EXPR_GE, true); } |
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changeset
|
1478 "&" { CMD_OR_OP ("&", EXPR_AND, true); } |
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|
1479 "|" { CMD_OR_OP ("|", EXPR_OR, true); } |
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|
1480 "<" { CMD_OR_OP ("<", EXPR_LT, true); } |
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|
1481 ">" { CMD_OR_OP (">", EXPR_GT, true); } |
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1482 "*" { CMD_OR_OP ("*", '*', true); } |
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1483 "/" { CMD_OR_OP ("/", '/', true); } |
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1484 |
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1485 %{ |
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1486 // In Matlab, '\' may also trigger command syntax. |
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1487 %} |
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1488 |
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1489 "\\" { return curr_lexer->handle_op ("\\", LEFTDIV); } |
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1490 |
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1491 "^" { CMD_OR_OP ("^", POW, true); } |
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1492 "**" { CMD_OR_OP ("**", POW, false); } |
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1493 "&&" { CMD_OR_OP ("&&", EXPR_AND_AND, true); } |
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1494 "||" { CMD_OR_OP ("||", EXPR_OR_OR, true); } |
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1495 "<<" { CMD_OR_OP ("<<", LSHIFT, false); } |
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1496 ">>" { CMD_OR_OP (">>", RSHIFT, false); } |
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1497 |
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1498 ";" { |
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1499 bool at_beginning_of_statement |
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1500 = (! (curr_lexer->whitespace_is_significant () |
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1501 || curr_lexer->looking_at_object_index.front ())); |
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1502 |
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1503 return curr_lexer->handle_op (";", ';', at_beginning_of_statement); |
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1504 } |
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1505 |
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1506 "+" { CMD_OR_UNARY_OP ("+", '+', true); } |
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1507 "-" { CMD_OR_UNARY_OP ("-", '-', true); } |
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1508 |
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1509 "~" { CMD_OR_UNARY_OP ("~", EXPR_NOT, true); } |
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1510 "!" { CMD_OR_UNARY_OP ("!", EXPR_NOT, false); } |
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1511 |
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1512 "," { |
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1513 bool at_beginning_of_statement |
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1514 = (! (curr_lexer->whitespace_is_significant () |
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1515 || curr_lexer->looking_at_object_index.front ())); |
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1516 |
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1517 return curr_lexer->handle_op (",", ',', at_beginning_of_statement); |
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1518 } |
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1519 |
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1520 ".'" { |
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1521 return curr_lexer->handle_op (".'", TRANSPOSE, false); |
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1522 } |
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1523 |
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1524 "++" { CMD_OR_UNARY_OP ("++", PLUS_PLUS, false); } |
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1525 "--" { CMD_OR_UNARY_OP ("--", MINUS_MINUS, false); } |
1 | 1526 |
967 | 1527 "(" { |
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1528 curr_lexer->lexer_debug ("("); |
8535 | 1529 |
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1530 bool unput_comma = false; |
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1531 |
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1532 if (curr_lexer->whitespace_is_significant () |
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1533 && curr_lexer->space_follows_previous_token ()) |
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1534 { |
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1535 int tok = curr_lexer->previous_token_value (); |
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1536 |
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1537 if (! (tok == '[' || tok == '{' |
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1538 || curr_lexer->previous_token_is_binop ())) |
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1539 unput_comma = true; |
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1540 } |
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1541 |
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1542 if (unput_comma) |
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1543 { |
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1544 yyless (0); |
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1545 curr_lexer->xunput (','); |
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1546 // Adjust for comma that was not really in the input stream. |
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1547 curr_lexer->current_input_column--; |
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1548 } |
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1549 else |
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1550 { |
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1551 // If we are looking for an object index, then push TRUE for |
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1552 // looking_at_object_index. Otherwise, just push whatever state |
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1553 // is current (so that we can pop it off the stack when we find |
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1554 // the matching close paren). |
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1555 |
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1556 curr_lexer->looking_at_object_index.push_front |
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1557 (curr_lexer->looking_for_object_index); |
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1558 |
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1559 curr_lexer->looking_at_indirect_ref = false; |
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1560 curr_lexer->looking_for_object_index = false; |
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1561 curr_lexer->at_beginning_of_statement = false; |
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1562 |
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1563 curr_lexer->nesting_level.paren (); |
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1564 curr_lexer->decrement_promptflag (); |
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1565 |
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1566 return curr_lexer->handle_token ('('); |
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1567 } |
967 | 1568 } |
1569 | |
1570 ")" { | |
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1571 curr_lexer->lexer_debug (")"); |
8535 | 1572 |
16110
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1573 curr_lexer->nesting_level.remove (); |
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1574 curr_lexer->current_input_column++; |
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1575 |
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1576 curr_lexer->looking_at_object_index.pop_front (); |
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1577 |
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1578 curr_lexer->looking_for_object_index = true; |
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1579 curr_lexer->at_beginning_of_statement = false; |
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1580 |
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1581 if (curr_lexer->looking_at_anon_fcn_args) |
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1582 { |
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1583 curr_lexer->looking_at_anon_fcn_args = false; |
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1584 curr_lexer->nesting_level.anon_fcn_body (); |
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1585 } |
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1586 |
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1587 return curr_lexer->count_token (')'); |
967 | 1588 } |
1589 | |
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1590 "." { |
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1591 curr_lexer->lexer_debug ("."); |
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1592 |
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1593 if (curr_lexer->previous_token_may_be_command () |
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1594 && curr_lexer->space_follows_previous_token ()) |
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1595 { |
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1596 yyless (0); |
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1597 curr_lexer->push_start_state (COMMAND_START); |
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1598 } |
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1599 else |
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1600 { |
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1601 curr_lexer->looking_for_object_index = false; |
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1602 curr_lexer->at_beginning_of_statement = false; |
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1603 |
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1604 return curr_lexer->handle_token ('.'); |
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1605 } |
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1606 } |
8535 | 1607 |
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1608 %{ |
16257
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parents:
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diff
changeset
|
1609 // = and op= operators. |
16229
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use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1610 %} |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1611 |
16360
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recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1612 "=" { |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
1613 curr_lexer->maybe_mark_previous_token_as_variable (); |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1614 |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
1615 return curr_lexer->handle_op ("=", '='); |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1616 } |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1617 |
16680
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1618 "+=" { CMD_OR_COMPUTED_ASSIGN_OP ("+=", ADD_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1619 "-=" { CMD_OR_COMPUTED_ASSIGN_OP ("-=", SUB_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1620 "*=" { CMD_OR_COMPUTED_ASSIGN_OP ("*=", MUL_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1621 "/=" { CMD_OR_COMPUTED_ASSIGN_OP ("/=", DIV_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1622 "\\=" { CMD_OR_COMPUTED_ASSIGN_OP ("\\=", LEFTDIV_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1623 ".+=" { CMD_OR_COMPUTED_ASSIGN_OP (".+=", ADD_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1624 ".-=" { CMD_OR_COMPUTED_ASSIGN_OP (".-=", SUB_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1625 ".*=" { CMD_OR_COMPUTED_ASSIGN_OP (".*=", EMUL_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1626 "./=" { CMD_OR_COMPUTED_ASSIGN_OP ("./=", EDIV_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1627 ".\\=" { CMD_OR_COMPUTED_ASSIGN_OP (".\\=", ELEFTDIV_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1628 "^=" { CMD_OR_COMPUTED_ASSIGN_OP ("^=", POW_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1629 "**=" { CMD_OR_COMPUTED_ASSIGN_OP ("^=", POW_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1630 ".^=" { CMD_OR_COMPUTED_ASSIGN_OP (".^=", EPOW_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1631 ".**=" { CMD_OR_COMPUTED_ASSIGN_OP (".^=", EPOW_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1632 "&=" { CMD_OR_COMPUTED_ASSIGN_OP ("&=", AND_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1633 "|=" { CMD_OR_COMPUTED_ASSIGN_OP ("|=", OR_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1634 "<<=" { CMD_OR_COMPUTED_ASSIGN_OP ("<<=", LSHIFT_EQ); } |
de79cdbbdf7c
improve parsing of commands
John W. Eaton <jwe@octave.org>
parents:
16643
diff
changeset
|
1635 ">>=" { CMD_OR_COMPUTED_ASSIGN_OP (">>=", RSHIFT_EQ); } |
16257
db7f07b22b9b
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parents:
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diff
changeset
|
1636 |
16275
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parents:
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diff
changeset
|
1637 %{ |
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parents:
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diff
changeset
|
1638 // In Matlab, '{' may also trigger command syntax. |
dd7de0345124
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parents:
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diff
changeset
|
1639 %} |
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parents:
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diff
changeset
|
1640 |
16257
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1/10 commits reworking the lexer
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parents:
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diff
changeset
|
1641 "{" { |
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John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
1642 curr_lexer->lexer_debug ("{"); |
8535 | 1643 |
16263
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1644 bool unput_comma = false; |
9acb86e6ac90
4/10 commits reworking the lexer
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parents:
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diff
changeset
|
1645 |
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4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1646 if (curr_lexer->whitespace_is_significant () |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1647 && curr_lexer->space_follows_previous_token ()) |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1648 { |
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4/10 commits reworking the lexer
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parents:
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diff
changeset
|
1649 int tok = curr_lexer->previous_token_value (); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1650 |
16267
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6/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16265
diff
changeset
|
1651 if (! (tok == '[' || tok == '{' |
16263
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1652 || curr_lexer->previous_token_is_binop ())) |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1653 unput_comma = true; |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1654 } |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1655 |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1656 if (unput_comma) |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1657 { |
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4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1658 yyless (0); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1659 curr_lexer->xunput (','); |
16281
1bbc2fc552cf
adjust line and column info when inserting new text in lexer input stream
John W. Eaton <jwe@octave.org>
parents:
16277
diff
changeset
|
1660 // Adjust for comma that was not really in the input stream. |
1bbc2fc552cf
adjust line and column info when inserting new text in lexer input stream
John W. Eaton <jwe@octave.org>
parents:
16277
diff
changeset
|
1661 curr_lexer->current_input_column--; |
16263
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1662 } |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1663 else |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1664 { |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1665 curr_lexer->nesting_level.brace (); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1666 |
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4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1667 curr_lexer->looking_at_object_index.push_front |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1668 (curr_lexer->looking_for_object_index); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1669 |
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4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1670 curr_lexer->current_input_column += yyleng; |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1671 curr_lexer->looking_for_object_index = false; |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1672 curr_lexer->at_beginning_of_statement = false; |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1673 |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1674 curr_lexer->decrement_promptflag (); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1675 |
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4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1676 curr_lexer->braceflag++; |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1677 |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1678 curr_lexer->push_start_state (MATRIX_START); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1679 |
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4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1680 return curr_lexer->count_token ('{'); |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
1681 } |
3351 | 1682 } |
1683 | |
1684 "}" { | |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1685 curr_lexer->lexer_debug ("}"); |
8535 | 1686 |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1687 curr_lexer->looking_at_object_index.pop_front (); |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1688 |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1689 curr_lexer->looking_for_object_index = true; |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1690 curr_lexer->at_beginning_of_statement = false; |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1691 |
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1692 curr_lexer->nesting_level.remove (); |
3351 | 1693 |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1694 return curr_lexer->handle_token ('}'); |
3351 | 1695 } |
1696 | |
968 | 1697 %{ |
2066 | 1698 // Unrecognized input is a lexical error. |
968 | 1699 %} |
1 | 1700 |
2042 | 1701 . { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
1702 curr_lexer->lexer_debug ("."); |
8535 | 1703 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
1704 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
|
1705 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
1706 int c = curr_lexer->text_yyinput (); |
4248 | 1707 |
16294
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1708 if (c == 1) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1709 return -1; |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1710 else if (c == EOF) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1711 return curr_lexer->handle_end_of_input (); |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
1712 else |
4240 | 1713 { |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1714 curr_lexer->current_input_column++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1715 |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
1716 error ("invalid character '%s' (ASCII %d) near line %d, column %d", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1717 undo_string_escape (static_cast<char> (c)), c, |
16110
7302f8a4df83
use pointer for global lexical_feedback structure
John W. Eaton <jwe@octave.org>
parents:
16106
diff
changeset
|
1718 curr_lexer->input_line_number, curr_lexer->current_input_column); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1719 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1720 return LEXICAL_ERROR; |
4240 | 1721 } |
2066 | 1722 } |
1 | 1723 |
1724 %% | |
1725 | |
19784
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1726 void * |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1727 octave_alloc (yy_size_t size, yyscan_t) |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1728 { |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1729 return malloc (size); |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1730 } |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1731 |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1732 void * |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1733 octave_realloc (void *ptr, yy_size_t size, yyscan_t) |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1734 { |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1735 return realloc (ptr, size); |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1736 } |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1737 |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1738 void |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1739 octave_free (void *ptr, yyscan_t) |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1740 { |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1741 free (ptr); |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1742 } |
a3577622952c
avoid some GCC unused parameter warnings
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1743 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1744 static void |
8535 | 1745 display_character (char c) |
1746 { | |
1747 if (isgraph (c)) | |
1748 std::cerr << c; | |
1749 else | |
1750 switch (c) | |
1751 { | |
1752 case 0: | |
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|
1753 std::cerr << "NUL"; |
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untabify src C++ source files
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diff
changeset
|
1754 break; |
8535 | 1755 |
1756 case 1: | |
10315
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|
1757 std::cerr << "SOH"; |
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untabify src C++ source files
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diff
changeset
|
1758 break; |
8535 | 1759 |
1760 case 2: | |
10315
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|
1761 std::cerr << "STX"; |
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untabify src C++ source files
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|
1762 break; |
8535 | 1763 |
1764 case 3: | |
10315
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|
1765 std::cerr << "ETX"; |
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untabify src C++ source files
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|
1766 break; |
8535 | 1767 |
1768 case 4: | |
10315
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|
1769 std::cerr << "EOT"; |
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untabify src C++ source files
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|
1770 break; |
8535 | 1771 |
1772 case 5: | |
10315
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|
1773 std::cerr << "ENQ"; |
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untabify src C++ source files
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diff
changeset
|
1774 break; |
8535 | 1775 |
1776 case 6: | |
10315
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|
1777 std::cerr << "ACK"; |
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untabify src C++ source files
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diff
changeset
|
1778 break; |
8535 | 1779 |
1780 case 7: | |
10315
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|
1781 std::cerr << "\\a"; |
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untabify src C++ source files
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diff
changeset
|
1782 break; |
8535 | 1783 |
1784 case 8: | |
10315
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|
1785 std::cerr << "\\b"; |
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untabify src C++ source files
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|
1786 break; |
8535 | 1787 |
1788 case 9: | |
10315
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|
1789 std::cerr << "\\t"; |
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untabify src C++ source files
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changeset
|
1790 break; |
8535 | 1791 |
1792 case 10: | |
10315
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|
1793 std::cerr << "\\n"; |
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untabify src C++ source files
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|
1794 break; |
8535 | 1795 |
1796 case 11: | |
10315
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|
1797 std::cerr << "\\v"; |
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untabify src C++ source files
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|
1798 break; |
8535 | 1799 |
1800 case 12: | |
10315
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|
1801 std::cerr << "\\f"; |
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untabify src C++ source files
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|
1802 break; |
8535 | 1803 |
1804 case 13: | |
10315
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|
1805 std::cerr << "\\r"; |
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untabify src C++ source files
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|
1806 break; |
8535 | 1807 |
1808 case 14: | |
10315
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|
1809 std::cerr << "SO"; |
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untabify src C++ source files
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|
1810 break; |
8535 | 1811 |
1812 case 15: | |
10315
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|
1813 std::cerr << "SI"; |
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|
1814 break; |
8535 | 1815 |
1816 case 16: | |
10315
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|
1817 std::cerr << "DLE"; |
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|
1818 break; |
8535 | 1819 |
1820 case 17: | |
10315
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|
1821 std::cerr << "DC1"; |
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|
1822 break; |
8535 | 1823 |
1824 case 18: | |
10315
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|
1825 std::cerr << "DC2"; |
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|
1826 break; |
8535 | 1827 |
1828 case 19: | |
10315
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|
1829 std::cerr << "DC3"; |
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|
1830 break; |
8535 | 1831 |
1832 case 20: | |
10315
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|
1833 std::cerr << "DC4"; |
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|
1834 break; |
8535 | 1835 |
1836 case 21: | |
10315
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|
1837 std::cerr << "NAK"; |
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|
1838 break; |
8535 | 1839 |
1840 case 22: | |
10315
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|
1841 std::cerr << "SYN"; |
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|
1842 break; |
8535 | 1843 |
1844 case 23: | |
10315
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|
1845 std::cerr << "ETB"; |
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|
1846 break; |
8535 | 1847 |
1848 case 24: | |
10315
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|
1849 std::cerr << "CAN"; |
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|
1850 break; |
8535 | 1851 |
1852 case 25: | |
10315
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|
1853 std::cerr << "EM"; |
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|
1854 break; |
8535 | 1855 |
1856 case 26: | |
10315
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|
1857 std::cerr << "SUB"; |
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|
1858 break; |
8535 | 1859 |
1860 case 27: | |
10315
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|
1861 std::cerr << "ESC"; |
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untabify src C++ source files
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changeset
|
1862 break; |
8535 | 1863 |
1864 case 28: | |
10315
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|
1865 std::cerr << "FS"; |
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|
1866 break; |
8535 | 1867 |
1868 case 29: | |
10315
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changeset
|
1869 std::cerr << "GS"; |
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changeset
|
1870 break; |
8535 | 1871 |
1872 case 30: | |
10315
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|
1873 std::cerr << "RS"; |
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changeset
|
1874 break; |
8535 | 1875 |
1876 case 31: | |
10315
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|
1877 std::cerr << "US"; |
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untabify src C++ source files
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changeset
|
1878 break; |
8535 | 1879 |
1880 case 32: | |
10315
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|
1881 std::cerr << "SPACE"; |
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untabify src C++ source files
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changeset
|
1882 break; |
8535 | 1883 |
1884 case 127: | |
10315
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|
1885 std::cerr << "DEL"; |
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untabify src C++ source files
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|
1886 break; |
8535 | 1887 } |
1888 } | |
8745
6dc61981d18b
better handling of object indexing in lexer
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diff
changeset
|
1889 |
16114
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* lex.ll: Reorder function definitions.
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diff
changeset
|
1890 bool |
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* lex.ll: Reorder function definitions.
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diff
changeset
|
1891 is_keyword (const std::string& s) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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diff
changeset
|
1892 { |
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* lex.ll: Reorder function definitions.
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changeset
|
1893 // Parsing function names like "set.property_name" inside |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1894 // classdef-style class definitions is simplified by handling the |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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diff
changeset
|
1895 // "set" and "get" portions of the names using the same mechanism as |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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diff
changeset
|
1896 // is used for keywords. However, they are not really keywords in |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
1897 // the language, so omit them from the list of possible keywords. |
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* lex.ll: Reorder function definitions.
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changeset
|
1898 |
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* lex.ll: Reorder function definitions.
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changeset
|
1899 return (octave_kw_hash::in_word_set (s.c_str (), s.length ()) != 0 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1900 && ! (s == "set" || s == "get")); |
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|
1901 } |
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changeset
|
1902 |
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|
1903 DEFUN (iskeyword, args, , |
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|
1904 "-*- texinfo -*-\n\ |
20895
7697a3433e37
doc: Remove class of function from docstring from generated C++ files.
Rik <rik@octave.org>
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20835
diff
changeset
|
1905 @deftypefn {} {} iskeyword ()\n\ |
7697a3433e37
doc: Remove class of function from docstring from generated C++ files.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1906 @deftypefnx {} {} iskeyword (@var{name})\n\ |
20163
075a5e2e1ba5
doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
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diff
changeset
|
1907 Return true if @var{name} is an Octave keyword.\n\ |
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diff
changeset
|
1908 \n\ |
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|
1909 If @var{name} is omitted, return a list of keywords.\n\ |
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|
1910 @seealso{isvarname, exist}\n\ |
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|
1911 @end deftypefn") |
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|
1912 { |
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|
1913 octave_value retval; |
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|
1914 |
20812
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diff
changeset
|
1915 int nargin = args.length (); |
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|
1916 |
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changeset
|
1917 if (nargin > 1) |
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|
1918 print_usage (); |
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|
1919 |
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|
1920 if (nargin == 0) |
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|
1921 { |
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changeset
|
1922 // Neither set nor get are keywords. See the note in the |
16114
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|
1923 // is_keyword function for additional details. |
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|
1924 |
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changeset
|
1925 string_vector lst (TOTAL_KEYWORDS); |
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|
1926 |
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|
1927 int j = 0; |
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|
1928 |
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|
1929 for (int i = 0; i < TOTAL_KEYWORDS; i++) |
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|
1930 { |
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|
1931 std::string kword = wordlist[i].name; |
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|
1932 |
d9ca869ca124
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|
1933 if (kword != "set" && kword != "get") |
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1934 lst[j++] = kword; |
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1935 } |
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1936 |
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1937 lst.resize (j); |
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1938 |
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1939 retval = Cell (lst.sort ()); |
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1940 } |
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1941 else |
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1942 { |
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1943 std::string name = args(0).xstring_value ("iskeyword: NAME must be a string"); |
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1944 retval = is_keyword (name); |
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1945 } |
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1946 |
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1947 return retval; |
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1948 } |
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1949 |
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1950 /* |
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1951 |
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1952 %!assert (iskeyword ("for")) |
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1953 %!assert (iskeyword ("fort"), false) |
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1954 %!assert (iskeyword ("fft"), false) |
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1955 %!assert (iskeyword ("get"), false) |
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1956 %!assert (iskeyword ("set"), false) |
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1957 |
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1958 %!error iskeyword ("A", "B") |
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1959 %!error <NAME must be a string> iskeyword (1) |
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1960 |
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1961 */ |
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1962 |
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1963 DEFUN (__display_tokens__, args, nargout, |
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1964 "-*- texinfo -*-\n\ |
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1965 @deftypefn {} {} __display_tokens__ ()\n\ |
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1966 Query or set the internal variable that determines whether Octave's\n\ |
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1967 lexer displays tokens as they are read.\n\ |
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1968 @seealso{__lexer_debug_flag__, __token_count__}\n\ |
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1969 @end deftypefn") |
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1970 { |
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1971 return SET_INTERNAL_VARIABLE (display_tokens); |
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1972 } |
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|
1973 |
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1974 DEFUN (__token_count__, , , |
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1975 "-*- texinfo -*-\n\ |
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1976 @deftypefn {} {} __token_count__ ()\n\ |
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1977 Return the number of language tokens processed since Octave startup.\n\ |
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|
1978 @seealso{__lexer_debug_flag__, __display_tokens__}\n\ |
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1979 @end deftypefn") |
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|
1980 { |
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|
1981 return octave_value (Vtoken_count); |
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|
1982 } |
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|
1983 |
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|
1984 DEFUN (__lexer_debug_flag__, args, nargout, |
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|
1985 "-*- texinfo -*-\n\ |
20895
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|
1986 @deftypefn {} {@var{val} =} __lexer_debug_flag__ ()\n\ |
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|
1987 @deftypefnx {} {@var{old_val} =} __lexer_debug_flag__ (@var{new_val})\n\ |
18531
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|
1988 Query or set the internal flag that determines whether Octave's lexer prints\n\ |
04b4fb217b1a
doc: Improve documentation strings in parse-tree directory.
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parents:
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|
1989 debug information as it processes an expression.\n\ |
04b4fb217b1a
doc: Improve documentation strings in parse-tree directory.
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parents:
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|
1990 @seealso{__display_tokens__, __token_count__, __parse_debug_flag__}\n\ |
16114
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|
1991 @end deftypefn") |
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|
1992 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1993 octave_value retval; |
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|
1994 |
73a21ade0b6b
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|
1995 retval = set_internal_variable (lexer_debug_flag, args, nargout, |
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|
1996 "__lexer_debug_flag__"); |
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|
1997 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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|
1998 return retval; |
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|
1999 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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changeset
|
2000 |
16193
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16183
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|
2001 lexical_feedback::~lexical_feedback (void) |
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
|
2002 { |
16230
4bf907906134
use a queue to hold tokens in the lexer
John W. Eaton <jwe@octave.org>
parents:
16229
diff
changeset
|
2003 tokens.clear (); |
16194
b7ca669af528
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parents:
16193
diff
changeset
|
2004 } |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2005 |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2006 void |
b7ca669af528
reset lexical_feedback state before starting a new parse
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parents:
16193
diff
changeset
|
2007 lexical_feedback::init (void) |
b7ca669af528
reset lexical_feedback state before starting a new parse
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parents:
16193
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changeset
|
2008 { |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2009 // 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
|
2010 // index. |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2011 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
|
2012 } |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2013 |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2014 void |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2015 lexical_feedback::reset (void) |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2016 { |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2017 end_of_input = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
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16193
diff
changeset
|
2018 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
|
2019 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
|
2020 looking_at_return_list = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2021 looking_at_parameter_list = false; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2022 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
|
2023 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
|
2024 looking_at_matrix_or_assign_lhs = false; |
19593
446c46af4b42
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
18974
diff
changeset
|
2025 looking_for_object_index = false; |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
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16193
diff
changeset
|
2026 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
|
2027 parsing_class_method = false; |
16211
3449bf257514
maint: fix botched merge of default to classdef
John W. Eaton <jwe@octave.org>
parents:
16205
diff
changeset
|
2028 parsing_classdef = false; |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2029 maybe_classdef_get_set_method = false; |
16211
3449bf257514
maint: fix botched merge of default to classdef
John W. Eaton <jwe@octave.org>
parents:
16205
diff
changeset
|
2030 parsing_classdef_get_method = false; |
3449bf257514
maint: fix botched merge of default to classdef
John W. Eaton <jwe@octave.org>
parents:
16205
diff
changeset
|
2031 parsing_classdef_set_method = false; |
20772
51ab9145f6e6
set all lexical_feedback variables in init function (bug #46522)
John W. Eaton <jwe@octave.org>
parents:
20188
diff
changeset
|
2032 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
|
2033 force_script = false; |
16199
810a71122c25
move more global variables to octave_lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16195
diff
changeset
|
2034 reading_fcn_file = false; |
810a71122c25
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John W. Eaton <jwe@octave.org>
parents:
16195
diff
changeset
|
2035 reading_script_file = false; |
810a71122c25
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John W. Eaton <jwe@octave.org>
parents:
16195
diff
changeset
|
2036 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
|
2037 input_line_number = 1; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2038 current_input_column = 1; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2039 bracketflag = 0; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2040 braceflag = 0; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2041 looping = 0; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2042 defining_func = 0; |
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2043 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
|
2044 block_comment_nesting_level = 0; |
20772
51ab9145f6e6
set all lexical_feedback variables in init function (bug #46522)
John W. Eaton <jwe@octave.org>
parents:
20188
diff
changeset
|
2045 command_arg_paren_count = 0; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2046 token_count = 0; |
16207
0467d68ca891
move current_input_line to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16203
diff
changeset
|
2047 current_input_line = ""; |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
2048 comment_text = ""; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2049 help_text = ""; |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2050 string_text = ""; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2051 string_line = 0; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2052 string_column = 0; |
16203
127cccb037bf
move more global parser and lexer variables to classes
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parents:
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diff
changeset
|
2053 fcn_file_name = ""; |
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move more global parser and lexer variables to classes
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parents:
16199
diff
changeset
|
2054 fcn_file_full_name = ""; |
16194
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reset lexical_feedback state before starting a new parse
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parents:
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diff
changeset
|
2055 looking_at_object_index.clear (); |
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reset lexical_feedback state before starting a new parse
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parents:
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diff
changeset
|
2056 looking_at_object_index.push_front (false); |
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reset lexical_feedback state before starting a new parse
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parents:
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diff
changeset
|
2057 |
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parents:
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diff
changeset
|
2058 while (! parsed_function_name.empty ()) |
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reset lexical_feedback state before starting a new parse
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parents:
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diff
changeset
|
2059 parsed_function_name.pop (); |
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reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2060 |
20772
51ab9145f6e6
set all lexical_feedback variables in init function (bug #46522)
John W. Eaton <jwe@octave.org>
parents:
20188
diff
changeset
|
2061 pending_local_variables.clear (); |
51ab9145f6e6
set all lexical_feedback variables in init function (bug #46522)
John W. Eaton <jwe@octave.org>
parents:
20188
diff
changeset
|
2062 symtab_context.clear (); |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2063 nesting_level.reset (); |
16230
4bf907906134
use a queue to hold tokens in the lexer
John W. Eaton <jwe@octave.org>
parents:
16229
diff
changeset
|
2064 tokens.clear (); |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2065 } |
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John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2066 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2067 int |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2068 lexical_feedback::previous_token_value (void) const |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2069 { |
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parents:
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diff
changeset
|
2070 const token *tok = tokens.front (); |
12bf6a3f8c45
store more info in token value class
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parents:
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diff
changeset
|
2071 return tok ? tok->token_value () : 0; |
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store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2072 } |
12bf6a3f8c45
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2073 |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2074 bool |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2075 lexical_feedback::previous_token_value_is (int tok_val) const |
12bf6a3f8c45
store more info in token value class
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parents:
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diff
changeset
|
2076 { |
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parents:
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diff
changeset
|
2077 const token *tok = tokens.front (); |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2078 return tok ? tok->token_value_is (tok_val) : false; |
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parents:
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diff
changeset
|
2079 } |
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parents:
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diff
changeset
|
2080 |
12bf6a3f8c45
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parents:
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diff
changeset
|
2081 void |
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parents:
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diff
changeset
|
2082 lexical_feedback::mark_previous_token_trailing_space (void) |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2083 { |
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parents:
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diff
changeset
|
2084 token *tok = tokens.front (); |
12bf6a3f8c45
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2085 if (tok && ! previous_token_value_is ('\n')) |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2086 tok->mark_trailing_space (); |
12bf6a3f8c45
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parents:
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diff
changeset
|
2087 } |
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parents:
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diff
changeset
|
2088 |
12bf6a3f8c45
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2089 bool |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2090 lexical_feedback::space_follows_previous_token (void) const |
12bf6a3f8c45
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2091 { |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2092 const token *tok = tokens.front (); |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2093 return tok ? tok->space_follows_token () : false; |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2094 } |
12bf6a3f8c45
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parents:
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diff
changeset
|
2095 |
16257
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diff
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|
2096 bool |
db7f07b22b9b
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parents:
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diff
changeset
|
2097 lexical_feedback::previous_token_is_binop (void) const |
db7f07b22b9b
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parents:
16255
diff
changeset
|
2098 { |
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parents:
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diff
changeset
|
2099 int tok = previous_token_value (); |
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parents:
16255
diff
changeset
|
2100 |
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parents:
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diff
changeset
|
2101 return (tok == '+' || tok == '-' || tok == '@' |
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parents:
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diff
changeset
|
2102 || tok == ',' || tok == ';' || tok == '*' || tok == '/' |
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John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2103 || tok == ':' || tok == '=' || tok == ADD_EQ |
db7f07b22b9b
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John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2104 || tok == AND_EQ || tok == DIV_EQ || tok == EDIV |
db7f07b22b9b
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John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2105 || tok == EDIV_EQ || tok == ELEFTDIV || tok == ELEFTDIV_EQ |
db7f07b22b9b
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John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2106 || tok == EMINUS || tok == EMUL || tok == EMUL_EQ |
db7f07b22b9b
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John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2107 || tok == EPOW || tok == EPOW_EQ || tok == EXPR_AND |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2108 || tok == EXPR_AND_AND || tok == EXPR_EQ || tok == EXPR_GE |
db7f07b22b9b
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John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2109 || tok == EXPR_GT || tok == EXPR_LE || tok == EXPR_LT |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2110 || tok == EXPR_NE || tok == EXPR_NOT || tok == EXPR_OR |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2111 || tok == EXPR_OR_OR || tok == LEFTDIV || tok == LEFTDIV_EQ |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2112 || tok == LSHIFT || tok == LSHIFT_EQ || tok == MUL_EQ |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2113 || tok == OR_EQ || tok == POW || tok == POW_EQ |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2114 || tok == RSHIFT || tok == RSHIFT_EQ || tok == SUB_EQ); |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2115 } |
db7f07b22b9b
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2116 |
db7f07b22b9b
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2117 bool |
16267
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parents:
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diff
changeset
|
2118 lexical_feedback::previous_token_is_keyword (void) const |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2119 { |
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parents:
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diff
changeset
|
2120 const token *tok = tokens.front (); |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2121 return tok ? tok->is_keyword () : false; |
15f55df088e7
6/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2122 } |
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6/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2123 |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2124 bool |
16257
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1/10 commits reworking the lexer
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parents:
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diff
changeset
|
2125 lexical_feedback::previous_token_may_be_command (void) const |
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parents:
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diff
changeset
|
2126 { |
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parents:
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diff
changeset
|
2127 const token *tok = tokens.front (); |
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1/10 commits reworking the lexer
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parents:
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diff
changeset
|
2128 return tok ? tok->may_be_command () : false; |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2129 } |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2130 |
16360
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parents:
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diff
changeset
|
2131 void |
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parents:
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diff
changeset
|
2132 lexical_feedback::maybe_mark_previous_token_as_variable (void) |
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John W. Eaton <jwe@octave.org>
parents:
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changeset
|
2133 { |
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recognize variables when parsing (bug #38576)
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parents:
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diff
changeset
|
2134 token *tok = tokens.front (); |
16756
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avoid looking at previous token that doesn't exist (bug #39180)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2135 |
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avoid looking at previous token that doesn't exist (bug #39180)
John W. Eaton <jwe@octave.org>
parents:
16681
diff
changeset
|
2136 if (tok && tok->is_symbol ()) |
16360
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recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2137 pending_local_variables.insert (tok->symbol_name ()); |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2138 } |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2139 |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2140 void |
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parents:
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diff
changeset
|
2141 lexical_feedback::mark_as_variables (const std::list<std::string>& lst) |
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parents:
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changeset
|
2142 { |
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parents:
16337
diff
changeset
|
2143 for (std::list<std::string>::const_iterator p = lst.begin (); |
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recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2144 p != lst.end (); p++) |
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recognize variables when parsing (bug #38576)
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parents:
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diff
changeset
|
2145 { |
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parents:
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diff
changeset
|
2146 pending_local_variables.insert (*p); |
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recognize variables when parsing (bug #38576)
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diff
changeset
|
2147 } |
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parents:
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diff
changeset
|
2148 } |
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parents:
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diff
changeset
|
2149 |
16228
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revamp most comment handling
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parents:
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diff
changeset
|
2150 static bool |
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revamp most comment handling
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parents:
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changeset
|
2151 looks_like_copyright (const std::string& s) |
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revamp most comment handling
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parents:
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changeset
|
2152 { |
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changeset
|
2153 bool retval = false; |
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changeset
|
2154 |
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parents:
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changeset
|
2155 if (! s.empty ()) |
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changeset
|
2156 { |
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changeset
|
2157 size_t offset = s.find_first_not_of (" \t"); |
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changeset
|
2158 |
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diff
changeset
|
2159 retval = (s.substr (offset, 9) == "Copyright" || s.substr (offset, 6) == "Author"); |
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revamp most comment handling
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changeset
|
2160 } |
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revamp most comment handling
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changeset
|
2161 |
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changeset
|
2162 return retval; |
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changeset
|
2163 } |
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changeset
|
2164 |
16194
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changeset
|
2165 void |
16293
57e87ddfee14
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parents:
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changeset
|
2166 octave_base_lexer::input_buffer::fill (const std::string& input, bool eof_arg) |
16183
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parents:
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changeset
|
2167 { |
16195
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changeset
|
2168 buffer = input; |
16183
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changeset
|
2169 chars_left = buffer.length (); |
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changeset
|
2170 pos = buffer.c_str (); |
16195
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diff
changeset
|
2171 eof = eof_arg; |
16183
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changeset
|
2172 } |
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John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2173 |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2174 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2175 octave_base_lexer::input_buffer::copy_chunk (char *buf, size_t max_size) |
16183
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2176 { |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2177 static const char * const eol = "\n"; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2178 |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2179 size_t len = max_size > chars_left ? chars_left : max_size; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2180 assert (len > 0); |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2181 |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2182 memcpy (buf, pos, len); |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2183 |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2184 chars_left -= len; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2185 pos += len; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2186 |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2187 // Make sure input ends with a new line character. |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2188 if (chars_left == 0 && buf[len-1] != '\n') |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2189 { |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2190 if (len < max_size) |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2191 { |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2192 // There is enough room to plug the newline character in |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2193 // the buffer. |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2194 buf[len++] = '\n'; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2195 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2196 else |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2197 { |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2198 // There isn't enough room to plug the newline character |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2199 // in the buffer so arrange to have it returned on the next |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2200 // call to octave_base_lexer::read. |
16183
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2201 pos = eol; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2202 chars_left = 1; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2203 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2204 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2205 |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2206 return len; |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2207 } |
359d56094efa
handle lexer input buffering with class
John W. Eaton <jwe@octave.org>
parents:
16166
diff
changeset
|
2208 |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2209 octave_base_lexer::~octave_base_lexer (void) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2210 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2211 yylex_destroy (scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2212 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2213 |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2214 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2215 octave_base_lexer::init (void) |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2216 { |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2217 yylex_init (&scanner); |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2218 |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2219 // Make octave_base_lexer object available through yyextra in |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2220 // flex-generated lexer. |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2221 yyset_extra (this, scanner); |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2222 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2223 clear_start_state (); |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2224 } |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2225 |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2226 // Inside Flex-generated functions, yyg is the scanner cast to its real |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2227 // type. Some flex macros that we use in octave_base_lexer member functions |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2228 // (for example, BEGIN) use yyg. If we could perform the actions of |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2229 // these macros with functions instead, we could eliminate the |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2230 // OCTAVE_YYG macro. |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2231 |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2232 #define OCTAVE_YYG \ |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2233 struct yyguts_t *yyg = static_cast<struct yyguts_t*> (scanner) |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2234 |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2235 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2236 octave_base_lexer::reset (void) |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2237 { |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2238 // Start off on the right foot. |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2239 clear_start_state (); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2240 |
16320
09f0cb9cac7d
don't modify symbol table scope in the parser
John W. Eaton <jwe@octave.org>
parents:
16309
diff
changeset
|
2241 symtab_context.clear (); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2242 |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2243 // We do want a prompt by default. |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2244 promptflag (1); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2245 |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2246 // Only ask for input from stdin if we are expecting interactive |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2247 // input. |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2248 |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2249 if (! quitting_gracefully |
19849
1c9ed5b4c73d
input.h: change meaning of interactive and forced_interactive global variables.
Carnë Draug <carandraug@octave.org>
parents:
19784
diff
changeset
|
2250 && interactive |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2251 && ! (reading_fcn_file |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2252 || reading_classdef_file |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2253 || reading_script_file |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2254 || input_from_eval_string ())) |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2255 yyrestart (stdin, scanner); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2256 |
16194
b7ca669af528
reset lexical_feedback state before starting a new parse
John W. Eaton <jwe@octave.org>
parents:
16193
diff
changeset
|
2257 lexical_feedback::reset (); |
17693
efbe746f8fa8
eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents:
17355
diff
changeset
|
2258 |
efbe746f8fa8
eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents:
17355
diff
changeset
|
2259 comment_buf.reset (); |
16123
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2260 } |
a484e39d1f22
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16122
diff
changeset
|
2261 |
16124
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
2262 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2263 octave_base_lexer::prep_for_file (void) |
16124
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
2264 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2265 reading_script_file = true; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2266 |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2267 push_start_state (INPUT_FILE_START); |
16124
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
2268 } |
3be725cd195b
move more lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16123
diff
changeset
|
2269 |
16898
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2270 void |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2271 octave_base_lexer::begin_string (int state) |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2272 { |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2273 string_line = input_line_number; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2274 string_column = current_input_column; |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2275 |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2276 push_start_state (state); |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2277 } |
531473481084
rewrite string parsing to avoid unlimited lookahead
John W. Eaton <jwe@octave.org>
parents:
16788
diff
changeset
|
2278 |
16121
bdf365c5c9bf
maint: move function definition in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16120
diff
changeset
|
2279 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2280 octave_base_lexer::handle_end_of_input (void) |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2281 { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
2282 lexer_debug ("<<EOF>>"); |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2283 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2284 if (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
|
2285 { |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2286 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
|
2287 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2288 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
|
2289 && ! 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
|
2290 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
|
2291 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
|
2292 } |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2293 |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
2294 return handle_token (END_OF_INPUT); |
16164
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2295 } |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2296 |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2297 char * |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2298 octave_base_lexer::flex_yytext (void) |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2299 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2300 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
|
2301 } |
210039e91ad6
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John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2302 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2303 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
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16292
diff
changeset
|
2304 octave_base_lexer::flex_yyleng (void) |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2305 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2306 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
|
2307 } |
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2308 |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2309 int |
16293
57e87ddfee14
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John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2310 octave_base_lexer::text_yyinput (void) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2311 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2312 int c = yyinput (scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2313 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
16113
diff
changeset
|
2314 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2315 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2316 std::cerr << "I: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2317 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
2318 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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diff
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|
2319 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2320 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
16113
diff
changeset
|
2321 // Convert CRLF into just LF and single CR into LF. |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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diff
changeset
|
2322 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
16113
diff
changeset
|
2323 if (c == '\r') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
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|
2324 { |
16149
49dfba4fd3c5
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John W. Eaton <jwe@octave.org>
parents:
16148
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|
2325 c = yyinput (scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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diff
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|
2326 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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diff
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|
2327 if (lexer_debug_flag) |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2328 { |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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16113
diff
changeset
|
2329 std::cerr << "I: "; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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16113
diff
changeset
|
2330 display_character (c); |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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diff
changeset
|
2331 std::cerr << std::endl; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
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|
2332 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2333 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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diff
changeset
|
2334 if (c != '\n') |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
2335 { |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
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16124
diff
changeset
|
2336 xunput (c); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
2337 c = '\n'; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
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parents:
16113
diff
changeset
|
2338 } |
73a21ade0b6b
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parents:
16113
diff
changeset
|
2339 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
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|
2340 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2341 return c; |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2342 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2343 |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2344 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2345 octave_base_lexer::xunput (char c, char *buf) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
changeset
|
2346 { |
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
|
2347 if (c != EOF) |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
parents:
16113
diff
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|
2348 { |
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
|
2349 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
|
2350 { |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2351 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
|
2352 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
|
2353 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
|
2354 } |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2355 |
c5bfdc4c0963
move end_of_input flag from octve_parser class to octave_lexer class
John W. Eaton <jwe@octave.org>
parents:
16158
diff
changeset
|
2356 yyunput (c, buf, scanner); |
16114
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
2357 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
2358 } |
73a21ade0b6b
* lex.ll: Reorder function definitions.
John W. Eaton <jwe@octave.org>
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16113
diff
changeset
|
2359 |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2360 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2361 octave_base_lexer::xunput (char c) |
16125
96a58f197f93
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John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2362 { |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2363 char *yytxt = flex_yytext (); |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
2364 |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2365 xunput (c, yytxt); |
16125
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2366 } |
96a58f197f93
allow xunput to be called without buffer argument
John W. Eaton <jwe@octave.org>
parents:
16124
diff
changeset
|
2367 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2368 bool |
16293
57e87ddfee14
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John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2369 octave_base_lexer::looking_at_space (void) |
16275
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2370 { |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2371 int c = text_yyinput (); |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2372 xunput (c); |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2373 return (c == ' ' || c == '\t'); |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2374 } |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2375 |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2376 bool |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2377 octave_base_lexer::inside_any_object_index (void) |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2378 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2379 bool retval = false; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2380 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2381 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
|
2382 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
|
2383 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2384 if (*i) |
10315
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 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2387 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2388 } |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2389 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2390 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2391 return retval; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2392 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2393 |
16360
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2394 bool |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2395 octave_base_lexer::is_variable (const std::string& name) |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2396 { |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2397 return (symbol_table::is_variable (name) |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2398 || (pending_local_variables.find (name) |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2399 != pending_local_variables.end ())); |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2400 } |
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
2401 |
4238 | 2402 // Handle keywords. Return -1 if the keyword should be ignored. |
767 | 2403 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2404 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2405 octave_base_lexer::is_keyword_token (const std::string& s) |
1 | 2406 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2407 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
|
2408 int c = current_input_column; |
3805 | 2409 |
1823 | 2410 int len = s.length (); |
922 | 2411 |
5088 | 2412 const octave_kw *kw = octave_kw_hash::in_word_set (s.c_str (), len); |
191 | 2413 |
1497 | 2414 if (kw) |
143 | 2415 { |
18319
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2416 bool previous_at_bos = at_beginning_of_statement; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2417 |
16783
0bf1d559b321
always set at_beginning_of_statement when recognizing keywords (bug #38758)
John W. Eaton <jwe@octave.org>
parents:
16756
diff
changeset
|
2418 // May be reset to true for some token types. |
0bf1d559b321
always set at_beginning_of_statement when recognizing keywords (bug #38758)
John W. Eaton <jwe@octave.org>
parents:
16756
diff
changeset
|
2419 at_beginning_of_statement = false; |
0bf1d559b321
always set at_beginning_of_statement when recognizing keywords (bug #38758)
John W. Eaton <jwe@octave.org>
parents:
16756
diff
changeset
|
2420 |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
2421 token *tok_val = 0; |
1497 | 2422 |
2423 switch (kw->kw_id) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2424 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2425 case break_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2426 case catch_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2427 case continue_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2428 case else_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2429 case otherwise_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2430 case return_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2431 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
|
2432 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2433 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2434 |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2435 case persistent_kw: |
16263
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
2436 case global_kw: |
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
2437 looking_at_decl_list = true; |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2438 break; |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
2439 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2440 case case_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2441 case elseif_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2442 case until_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2443 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2444 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2445 case end_kw: |
14645
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
2446 if (inside_any_object_index () |
18341
02b349ccf0ec
Allow "end" method declaration/definition in classde files.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18340
diff
changeset
|
2447 || (defining_func |
02b349ccf0ec
Allow "end" method declaration/definition in classde files.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18340
diff
changeset
|
2448 && ! (looking_at_return_list |
02b349ccf0ec
Allow "end" method declaration/definition in classde files.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18340
diff
changeset
|
2449 || parsed_function_name.top ()))) |
18319
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2450 { |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2451 at_beginning_of_statement = previous_at_bos; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2452 return 0; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2453 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2454 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2455 tok_val = new token (end_kw, token::simple_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2456 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2457 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2458 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2459 case end_try_catch_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2460 tok_val = new token (end_try_catch_kw, token::try_catch_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2461 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2462 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2463 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2464 case end_unwind_protect_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2465 tok_val = new token (end_unwind_protect_kw, |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2466 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
|
2467 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2468 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2469 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2470 case endfor_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2471 tok_val = new token (endfor_kw, token::for_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2472 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2473 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2474 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2475 case endfunction_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2476 tok_val = new token (endfunction_kw, token::function_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2477 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2478 break; |
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 case endif_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2481 tok_val = new token (endif_kw, token::if_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2482 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2483 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2484 |
13246 | 2485 case endparfor_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2486 tok_val = new token (endparfor_kw, token::parfor_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2487 at_beginning_of_statement = true; |
13246 | 2488 break; |
2489 | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2490 case endswitch_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2491 tok_val = new token (endswitch_kw, token::switch_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2492 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2493 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2494 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2495 case endwhile_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2496 tok_val = new token (endwhile_kw, token::while_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2497 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2498 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2499 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2500 case endclassdef_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2501 tok_val = new token (endclassdef_kw, token::classdef_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2502 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2503 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2504 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2505 case endenumeration_kw: |
16267
15f55df088e7
6/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16265
diff
changeset
|
2506 tok_val = new token (endenumeration_kw, token::enumeration_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2507 at_beginning_of_statement = true; |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2508 break; |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2509 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2510 case endevents_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2511 tok_val = new token (endevents_kw, token::events_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2512 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2513 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2514 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2515 case endmethods_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2516 tok_val = new token (endmethods_kw, token::methods_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2517 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2518 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2519 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2520 case endproperties_kw: |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2521 tok_val = new token (endproperties_kw, token::properties_end, l, c); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2522 at_beginning_of_statement = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2523 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2524 |
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
|
2525 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2526 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
|
2527 case parfor_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2528 case while_kw: |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2529 decrement_promptflag (); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2530 looping++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2531 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2532 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2533 case do_kw: |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2534 at_beginning_of_statement = true; |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2535 decrement_promptflag (); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2536 looping++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2537 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2538 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2539 case try_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2540 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
|
2541 at_beginning_of_statement = true; |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2542 decrement_promptflag (); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2543 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2544 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2545 case if_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2546 case switch_kw: |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2547 decrement_promptflag (); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2548 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2549 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2550 case get_kw: |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2551 case set_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2552 // 'get' and 'set' are keywords in classdef method |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2553 // declarations. |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2554 if (! maybe_classdef_get_set_method) |
18319
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2555 { |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2556 at_beginning_of_statement = previous_at_bos; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2557 return 0; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2558 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2559 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2560 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2561 case enumeration_kw: |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2562 case events_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2563 case methods_kw: |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
2564 case properties_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2565 // 'properties', 'methods' and 'events' are keywords for |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2566 // classdef blocks. |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2567 if (! parsing_classdef) |
18319
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2568 { |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2569 at_beginning_of_statement = previous_at_bos; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2570 return 0; |
f59459404f55
allow "methods ftp" to work outside of classdef (bug #41227)
John W. Eaton <jwe@octave.org>
parents:
18311
diff
changeset
|
2571 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2572 // fall through ... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2573 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2574 case classdef_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2575 // 'classdef' is always a keyword. |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2576 decrement_promptflag (); |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2577 |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2578 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
|
2579 { |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2580 reading_classdef_file = true; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2581 reading_script_file = false; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2582 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2583 break; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2584 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2585 case function_kw: |
16209
e7ff32e7cf82
move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents:
16207
diff
changeset
|
2586 decrement_promptflag (); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2587 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2588 defining_func++; |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2589 parsed_function_name.push (false); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2590 |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2591 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
|
2592 { |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2593 reading_fcn_file = true; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2594 reading_script_file = false; |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2595 } |
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2596 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2597 if (! (reading_fcn_file || reading_script_file |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2598 || reading_classdef_file)) |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2599 input_line_number = 1; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2600 break; |
1497 | 2601 |
3174 | 2602 case magic_file_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2603 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2604 if ((reading_fcn_file || reading_script_file |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2605 || reading_classdef_file) |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
2606 && ! fcn_file_full_name.empty ()) |
19858
77f65eabac20
avoid crash when __FILE__ is used at top level (bug #44363)
John W. Eaton <jwe@octave.org>
parents:
19593
diff
changeset
|
2607 tok_val = new token (magic_file_kw, fcn_file_full_name, l, c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2608 else |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2609 tok_val = new token (magic_file_kw, "stdin", l, c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2610 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2611 break; |
3174 | 2612 |
2613 case magic_line_kw: | |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2614 tok_val = new token (magic_line_kw, static_cast<double> (l), |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2615 "", l, c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2616 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2617 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2618 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2619 panic_impossible (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2620 } |
1497 | 2621 |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
2622 if (! tok_val) |
16267
15f55df088e7
6/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16265
diff
changeset
|
2623 tok_val = new token (kw->tok, true, l, c); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
2624 |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
2625 push_token (tok_val); |
1497 | 2626 |
2627 return kw->tok; | |
143 | 2628 } |
1 | 2629 |
2630 return 0; | |
2631 } | |
2632 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2633 bool |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2634 octave_base_lexer::fq_identifier_contains_keyword (const std::string& s) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2635 { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2636 size_t p1 = 0; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2637 size_t p2; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2638 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2639 std::string s_part; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2640 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2641 do |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2642 { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2643 p2 = s.find ('.', p1); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2644 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2645 if (p2 != std::string::npos) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2646 { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2647 s_part = s.substr (p1, p2 - p1); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2648 p1 = p2 + 1; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2649 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2650 else |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2651 s_part = s.substr (p1); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2652 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2653 if (is_keyword_token (s_part)) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2654 return true; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2655 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2656 while (p2 != std::string::npos); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2657 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2658 return false; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2659 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2660 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2661 bool |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2662 octave_base_lexer::whitespace_is_significant (void) |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2663 { |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2664 return (nesting_level.is_bracket () |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2665 || (nesting_level.is_brace () |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2666 && ! looking_at_object_index.front ())); |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2667 } |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2668 |
3220 | 2669 static inline bool |
20589
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2670 looks_like_bin (const char *s, int len) |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2671 { |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2672 return (len > 2 && s[0] == '0' && (s[1] == 'b' || s[1] == 'B')); |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2673 } |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2674 |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2675 static inline bool |
3220 | 2676 looks_like_hex (const char *s, int len) |
2677 { | |
2678 return (len > 2 && s[0] == '0' && (s[1] == 'x' || s[1] == 'X')); | |
2679 } | |
2680 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2681 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2682 octave_base_lexer::handle_number (void) |
972 | 2683 { |
3220 | 2684 double value = 0.0; |
2685 int nread = 0; | |
2686 | |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2687 char *yytxt = flex_yytext (); |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2688 |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2689 // Strip any underscores |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2690 char *tmptxt = strsave (yytxt); |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2691 char *rptr = tmptxt; |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2692 char *wptr = tmptxt; |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2693 while (*rptr) |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2694 { |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2695 *wptr = *rptr++; |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2696 wptr += (*wptr != '_'); |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2697 } |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2698 *wptr = '\0'; |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2699 |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2700 if (looks_like_hex (tmptxt, strlen (tmptxt))) |
3220 | 2701 { |
2702 unsigned long ival; | |
3598 | 2703 |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2704 nread = sscanf (tmptxt, "%lx", &ival); |
3598 | 2705 |
3220 | 2706 value = static_cast<double> (ival); |
2707 } | |
20589
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2708 else if (looks_like_bin (tmptxt, strlen (tmptxt))) |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2709 { |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2710 uint64_t ivalue = 0; |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2711 |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2712 for (int i = 0; i < strlen (tmptxt); i++) |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2713 { |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2714 ivalue <<= 1; |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2715 ivalue += static_cast<uint64_t> (tmptxt[i] == '1'); |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2716 } |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2717 |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2718 value = static_cast<double> (ivalue); |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2719 nread = 1; // Just to pass the assert stmt below |
7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
Rik <rik@octave.org>
parents:
20588
diff
changeset
|
2720 } |
3220 | 2721 else |
3598 | 2722 { |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2723 char *idx = strpbrk (tmptxt, "Dd"); |
2621 | 2724 |
3598 | 2725 if (idx) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2726 *idx = 'e'; |
3598 | 2727 |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2728 nread = sscanf (tmptxt, "%lf", &value); |
3598 | 2729 } |
972 | 2730 |
20588
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2731 delete [] tmptxt; |
e34692daf663
Extend parser to accept '_' in numbers.
Rik <rik@octave.org>
parents:
20547
diff
changeset
|
2732 |
1826 | 2733 // If yytext doesn't contain a valid number, we are in deep doo doo. |
985 | 2734 |
972 | 2735 assert (nread == 1); |
2736 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2737 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
|
2738 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
|
2739 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2740 push_token (new token (NUM, value, yytxt, input_line_number, |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
2741 current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2742 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2743 current_input_column += flex_yyleng (); |
972 | 2744 } |
2745 | |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2746 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2747 octave_base_lexer::handle_continuation (void) |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2748 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2749 char *yytxt = flex_yytext (); |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2750 int yylng = flex_yyleng (); |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2751 |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2752 int offset = 1; |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2753 if (yytxt[0] == '\\') |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
2754 gripe_language_extension_continuation (); |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2755 else |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2756 offset = 3; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2757 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2758 bool have_space = false; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2759 while (offset < yylng) |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2760 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2761 char c = yytxt[offset]; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2762 if (c == ' ' || c == '\t') |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2763 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2764 have_space = true; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2765 offset++; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2766 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2767 else |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2768 break; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2769 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2770 |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2771 if (have_space) |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2772 mark_previous_token_trailing_space (); |
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2773 |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2774 bool have_comment = false; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2775 while (offset < yylng) |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2776 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2777 char c = yytxt[offset]; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2778 if (c == '#' || c == '%') |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2779 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2780 have_comment = true; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2781 offset++; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2782 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2783 else |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2784 break; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2785 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2786 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2787 if (have_comment) |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2788 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2789 comment_text = &yytxt[offset]; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2790 |
18246
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2791 // finish_comment sets at_beginning_of_statement to true but |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2792 // that's not be correct if we are handling a continued |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2793 // statement. Preserve the current state. |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2794 |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2795 bool saved_bos = at_beginning_of_statement; |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2796 |
16337
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
John W. Eaton <jwe@octave.org>
parents:
16334
diff
changeset
|
2797 finish_comment (octave_comment_elt::end_of_line); |
18246
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2798 |
1f072ae35ede
fix parsing of single quote after continuation and comment (bug #41048)
John W. Eaton <jwe@octave.org>
parents:
18135
diff
changeset
|
2799 at_beginning_of_statement = saved_bos; |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2800 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2801 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2802 decrement_promptflag (); |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2803 input_line_number++; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2804 current_input_column = 1; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2805 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2806 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2807 void |
16337
6bfd8dbd7d3c
don't swallow statements that follow comment lines (bug #38549)
John W. Eaton <jwe@octave.org>
parents:
16334
diff
changeset
|
2808 octave_base_lexer::finish_comment (octave_comment_elt::comment_type typ) |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2809 { |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2810 bool copyright = looks_like_copyright (comment_text); |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2811 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2812 if (nesting_level.none () && help_text.empty () |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2813 && ! comment_text.empty () && ! copyright) |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2814 help_text = comment_text; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2815 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2816 if (copyright) |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2817 typ = octave_comment_elt::copyright; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2818 |
17693
efbe746f8fa8
eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents:
17355
diff
changeset
|
2819 comment_buf.append (comment_text, typ); |
16253
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2820 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2821 comment_text = ""; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2822 |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2823 at_beginning_of_statement = true; |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2824 } |
a89cf57ba3a5
partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents:
16231
diff
changeset
|
2825 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2826 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2827 octave_base_lexer::handle_close_bracket (int bracket_type) |
971 | 2828 { |
4612 | 2829 int retval = bracket_type; |
3208 | 2830 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2831 if (! nesting_level.none ()) |
971 | 2832 { |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2833 nesting_level.remove (); |
4613 | 2834 |
2835 if (bracket_type == ']') | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2836 bracketflag--; |
4613 | 2837 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
|
2838 braceflag--; |
4613 | 2839 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2840 panic_impossible (); |
971 | 2841 } |
2842 | |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
2843 pop_start_state (); |
1001 | 2844 |
3208 | 2845 return retval; |
971 | 2846 } |
2847 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2848 bool |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2849 octave_base_lexer::looks_like_command_arg (void) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2850 { |
16275
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2851 bool space_before = space_follows_previous_token (); |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2852 bool space_after = looking_at_space (); |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2853 |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2854 return (space_before && ! space_after |
dd7de0345124
10/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16273
diff
changeset
|
2855 && previous_token_may_be_command ()); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2856 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2857 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2858 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2859 octave_base_lexer::handle_superclass_identifier (void) |
9476 | 2860 { |
16280
0dc6731fc0da
avoid eat_continuation in classdef branch
John W. Eaton <jwe@octave.org>
parents:
16278
diff
changeset
|
2861 std::string meth = flex_yytext (); |
15037
56b8eb7c9c04
improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents:
14647
diff
changeset
|
2862 |
9476 | 2863 size_t pos = meth.find ("@"); |
15037
56b8eb7c9c04
improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents:
14647
diff
changeset
|
2864 std::string cls = meth.substr (pos + 1); |
56b8eb7c9c04
improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents:
14647
diff
changeset
|
2865 meth = meth.substr (0, pos); |
9476 | 2866 |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2867 bool kw_token = (is_keyword_token (meth) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2868 || fq_identifier_contains_keyword (cls)); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2869 |
9476 | 2870 if (kw_token) |
2871 { | |
15037
56b8eb7c9c04
improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents:
14647
diff
changeset
|
2872 error ("method, class, and package names may not be keywords"); |
9476 | 2873 return LEXICAL_ERROR; |
2874 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2875 |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2876 push_token (new token (SUPERCLASSREF, meth, cls, |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
2877 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
|
2878 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2879 current_input_column += flex_yyleng (); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2880 |
9476 | 2881 return SUPERCLASSREF; |
2882 } | |
2883 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2884 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2885 octave_base_lexer::handle_meta_identifier (void) |
9476 | 2886 { |
16280
0dc6731fc0da
avoid eat_continuation in classdef branch
John W. Eaton <jwe@octave.org>
parents:
16278
diff
changeset
|
2887 std::string cls = std::string(flex_yytext ()).substr (1); |
9476 | 2888 |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2889 if (fq_identifier_contains_keyword (cls)) |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2890 { |
15037
56b8eb7c9c04
improvements in parsing classdef
John W. Eaton <jwe@octave.org>
parents:
14647
diff
changeset
|
2891 error ("class and package names may not be keywords"); |
9476 | 2892 return LEXICAL_ERROR; |
2893 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2894 |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2895 push_token (new token (METAQUERY, cls, input_line_number, |
16155
0259254a3ccc
maint: periodic merge of default to classdef
John W. Eaton <jwe@octave.org>
diff
changeset
|
2896 current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2897 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2898 current_input_column += flex_yyleng (); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2899 |
9476 | 2900 return METAQUERY; |
2901 } | |
2902 | |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2903 int |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2904 octave_base_lexer::handle_fq_identifier (void) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2905 { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2906 std::string tok = flex_yytext (); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2907 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2908 if (fq_identifier_contains_keyword (tok)) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2909 { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2910 error ("function, method, class, and package names may not be keywords"); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2911 return LEXICAL_ERROR; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2912 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2913 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2914 push_token (new token (FQ_IDENT, tok, input_line_number, |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2915 current_input_column)); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2916 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2917 current_input_column += flex_yyleng (); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2918 |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2919 return FQ_IDENT; |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2920 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
2921 |
767 | 2922 // Figure out exactly what kind of token to return when we have seen |
4238 | 2923 // an identifier. Handles keywords. Return -1 if the identifier |
2924 // should be ignored. | |
767 | 2925 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2926 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
2927 octave_base_lexer::handle_identifier (void) |
146 | 2928 { |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2929 char *yytxt = flex_yytext (); |
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2930 |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2931 std::string tok = yytxt; |
16128
210039e91ad6
localize use of yytext with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16126
diff
changeset
|
2932 |
2970 | 2933 // If we are expecting a structure element, avoid recognizing |
2934 // keywords and other special names and return STRUCT_ELT, which is | |
20188
e679dc89e64b
allow keywords as structure fields again (bug #45092)
John W. Eaton <jwe@octave.org>
parents:
20184
diff
changeset
|
2935 // a string that is also a valid identifier. |
747 | 2936 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2937 if (looking_at_indirect_ref) |
1072 | 2938 { |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2939 push_token (new token (STRUCT_ELT, tok, input_line_number, |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
2940 current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2941 |
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2942 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
|
2943 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2944 current_input_column += flex_yyleng (); |
2819 | 2945 |
2970 | 2946 return STRUCT_ELT; |
1072 | 2947 } |
747 | 2948 |
20188
e679dc89e64b
allow keywords as structure fields again (bug #45092)
John W. Eaton <jwe@octave.org>
parents:
20184
diff
changeset
|
2949 // If tok is a keyword token, then is_keyword_token will set |
e679dc89e64b
allow keywords as structure fields again (bug #45092)
John W. Eaton <jwe@octave.org>
parents:
20184
diff
changeset
|
2950 // at_beginning_of_statement. For example, if tok is an IF |
e679dc89e64b
allow keywords as structure fields again (bug #45092)
John W. Eaton <jwe@octave.org>
parents:
20184
diff
changeset
|
2951 // token, then at_beginning_of_statement will be false. |
e679dc89e64b
allow keywords as structure fields again (bug #45092)
John W. Eaton <jwe@octave.org>
parents:
20184
diff
changeset
|
2952 |
e679dc89e64b
allow keywords as structure fields again (bug #45092)
John W. Eaton <jwe@octave.org>
parents:
20184
diff
changeset
|
2953 int kw_token = is_keyword_token (tok); |
e679dc89e64b
allow keywords as structure fields again (bug #45092)
John W. Eaton <jwe@octave.org>
parents:
20184
diff
changeset
|
2954 |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2955 if (looking_at_function_handle) |
4930 | 2956 { |
2957 if (kw_token) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2958 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2959 error ("function handles may not refer to keywords"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2960 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2961 return LEXICAL_ERROR; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2962 } |
4930 | 2963 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2964 { |
16255
12bf6a3f8c45
store more info in token value class
John W. Eaton <jwe@octave.org>
parents:
16253
diff
changeset
|
2965 push_token (new token (FCN_HANDLE, tok, input_line_number, |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
parents:
16146
diff
changeset
|
2966 current_input_column)); |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
2967 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2968 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
|
2969 looking_for_object_index = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2970 |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2971 at_beginning_of_statement = false; |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2972 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2973 return FCN_HANDLE; |
57a59eae83cc
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John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2974 } |
4930 | 2975 } |
2976 | |
5102 | 2977 // If we have a regular keyword, return it. |
7722
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lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
2978 // Keywords can be followed by identifiers. |
146 | 2979 |
2980 if (kw_token) | |
2981 { | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2982 if (kw_token >= 0) |
10315
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untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2983 { |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16129
diff
changeset
|
2984 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
|
2985 looking_for_object_index = false; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2986 } |
7722
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lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
2987 |
16783
0bf1d559b321
always set at_beginning_of_statement when recognizing keywords (bug #38758)
John W. Eaton <jwe@octave.org>
parents:
16756
diff
changeset
|
2988 // The call to is_keyword_token set at_beginning_of_statement. |
0bf1d559b321
always set at_beginning_of_statement when recognizing keywords (bug #38758)
John W. Eaton <jwe@octave.org>
parents:
16756
diff
changeset
|
2989 |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
2990 return kw_token; |
146 | 2991 } |
2992 | |
17355
f0edd6c752e9
don't convert "end" token to "__end__" for indexing
John W. Eaton <jwe@octave.org>
parents:
17343
diff
changeset
|
2993 // Find the token in the symbol table. |
146 | 2994 |
16320
09f0cb9cac7d
don't modify symbol table scope in the parser
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2995 symbol_table::scope_id sid = symtab_context.curr_scope (); |
09f0cb9cac7d
don't modify symbol table scope in the parser
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2996 |
09f0cb9cac7d
don't modify symbol table scope in the parser
John W. Eaton <jwe@octave.org>
parents:
16309
diff
changeset
|
2997 token *tok_val = new token (NAME, &(symbol_table::insert (tok, sid)), |
16257
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1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2998 input_line_number, current_input_column); |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
2999 |
16788
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
16783
diff
changeset
|
3000 // The following symbols are handled specially so that things like |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
16783
diff
changeset
|
3001 // |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3002 // pi +1 |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3003 // |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
16783
diff
changeset
|
3004 // are parsed as an addition expression instead of as a command-style |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
16783
diff
changeset
|
3005 // function call with the argument "+1". |
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3006 |
16269
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7/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3007 if (at_beginning_of_statement |
16360
11115c237231
recognize variables when parsing (bug #38576)
John W. Eaton <jwe@octave.org>
parents:
16337
diff
changeset
|
3008 && (! (is_variable (tok) |
16788
f89de736eecd
correctly parse expressions like pi+1 (bug #39301)
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3009 || tok == "e" || tok == "pi" |
16269
488b0fef52c5
7/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16267
diff
changeset
|
3010 || tok == "I" || tok == "i" |
488b0fef52c5
7/10 commits reworking the lexer
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parents:
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diff
changeset
|
3011 || tok == "J" || tok == "j" |
488b0fef52c5
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parents:
16267
diff
changeset
|
3012 || tok == "Inf" || tok == "inf" |
488b0fef52c5
7/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16267
diff
changeset
|
3013 || tok == "NaN" || tok == "nan"))) |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
3014 tok_val->mark_may_be_command (); |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3015 |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3016 push_token (tok_val); |
146 | 3017 |
16130
421dea028bbf
localize use of yyleng with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3018 current_input_column += flex_yyleng (); |
146 | 3019 |
17355
f0edd6c752e9
don't convert "end" token to "__end__" for indexing
John W. Eaton <jwe@octave.org>
parents:
17343
diff
changeset
|
3020 // The magic end index can't be indexed. |
f0edd6c752e9
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John W. Eaton <jwe@octave.org>
parents:
17343
diff
changeset
|
3021 |
f0edd6c752e9
don't convert "end" token to "__end__" for indexing
John W. Eaton <jwe@octave.org>
parents:
17343
diff
changeset
|
3022 if (tok != "end") |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3023 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
|
3024 |
16257
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
3025 at_beginning_of_statement = false; |
db7f07b22b9b
1/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16255
diff
changeset
|
3026 |
146 | 3027 return NAME; |
3028 } | |
3029 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3030 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3031 octave_base_lexer::maybe_warn_separator_insert (char sep) |
3388 | 3032 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3033 std::string nm = fcn_file_full_name; |
3388 | 3034 |
5794 | 3035 if (nm.empty ()) |
3036 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
|
3037 "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
|
3038 sep, input_line_number); |
5794 | 3039 else |
3040 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
|
3041 "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
|
3042 sep, input_line_number, nm.c_str ()); |
3388 | 3043 } |
3044 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3045 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3046 octave_base_lexer::gripe_single_quote_string (void) |
3400 | 3047 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3048 std::string nm = fcn_file_full_name; |
3400 | 3049 |
5794 | 3050 if (nm.empty ()) |
3051 warning_with_id ("Octave:single-quote-string", | |
10315
57a59eae83cc
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John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3052 "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
|
3053 input_line_number); |
5794 | 3054 else |
3055 warning_with_id ("Octave:single-quote-string", | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3056 "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
|
3057 input_line_number, nm.c_str ()); |
3400 | 3058 } |
3059 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3060 void |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3061 octave_base_lexer::gripe_language_extension (const std::string& msg) |
4037 | 3062 { |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3063 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
|
3064 |
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3065 if (nm.empty ()) |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3066 warning_with_id ("Octave:language-extension", |
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3067 "Octave language extension used: %s", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3068 msg.c_str ()); |
8974
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3069 else |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3070 warning_with_id ("Octave:language-extension", |
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3071 "Octave language extension used: %s near line %d offile %s", |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3072 msg.c_str (), input_line_number, nm.c_str ()); |
4037 | 3073 } |
3074 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3075 void |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3076 octave_base_lexer::maybe_gripe_language_extension_comment (char c) |
4037 | 3077 { |
3078 if (c == '#') | |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3079 gripe_language_extension ("# used as comment character"); |
4037 | 3080 } |
3081 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3082 void |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3083 octave_base_lexer::gripe_language_extension_continuation (void) |
4037 | 3084 { |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3085 gripe_language_extension ("\\ used as line continuation marker"); |
4037 | 3086 } |
3087 | |
16113
7c5e5e97a3bc
move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16111
diff
changeset
|
3088 void |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3089 octave_base_lexer::gripe_language_extension_operator (const std::string& op) |
4037 | 3090 { |
3091 std::string t = op; | |
3092 int n = t.length (); | |
3093 if (t[n-1] == '\n') | |
3094 t.resize (n-1); | |
19852
e9a0bd0b125c
Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3095 gripe_language_extension (t + " used as operator"); |
4037 | 3096 } |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3097 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3098 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3099 octave_base_lexer::push_token (token *tok) |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3100 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3101 YYSTYPE *lval = yyget_lval (scanner); |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3102 lval->tok_val = tok; |
16230
4bf907906134
use a queue to hold tokens in the lexer
John W. Eaton <jwe@octave.org>
parents:
16229
diff
changeset
|
3103 tokens.push (tok); |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3104 } |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3105 |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3106 token * |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3107 octave_base_lexer::current_token (void) |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
parents:
16125
diff
changeset
|
3108 { |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3109 YYSTYPE *lval = yyget_lval (scanner); |
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3110 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
|
3111 } |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
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parents:
16125
diff
changeset
|
3112 |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
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parents:
16125
diff
changeset
|
3113 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3114 octave_base_lexer::display_token (int tok) |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3115 { |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3116 switch (tok) |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3117 { |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3118 case '=': std::cerr << "'='\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3119 case ':': std::cerr << "':'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3120 case '-': std::cerr << "'-'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3121 case '+': std::cerr << "'+'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3122 case '*': std::cerr << "'*'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3123 case '/': std::cerr << "'/'\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
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|
3124 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
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|
3125 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
|
3126 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
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|
3127 case DIV_EQ: std::cerr << "DIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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16118
diff
changeset
|
3128 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
|
3129 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
|
3130 case EMUL_EQ: std::cerr << "EMUL_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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16118
diff
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|
3131 case EDIV_EQ: std::cerr << "EDIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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16118
diff
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|
3132 case ELEFTDIV_EQ: std::cerr << "ELEFTDIV_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3133 case EPOW_EQ: std::cerr << "EPOW_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3134 case AND_EQ: std::cerr << "AND_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3135 case OR_EQ: std::cerr << "OR_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3136 case LSHIFT_EQ: std::cerr << "LSHIFT_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3137 case RSHIFT_EQ: std::cerr << "RSHIFT_EQ\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3138 case LSHIFT: std::cerr << "LSHIFT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3139 case RSHIFT: std::cerr << "RSHIFT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3140 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>
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diff
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|
3141 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>
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diff
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|
3142 case EXPR_AND: std::cerr << "EXPR_AND\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3143 case EXPR_OR: std::cerr << "EXPR_OR\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3144 case EXPR_NOT: std::cerr << "EXPR_NOT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3145 case EXPR_LT: std::cerr << "EXPR_LT\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3146 case EXPR_LE: std::cerr << "EXPR_LE\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3147 case EXPR_EQ: std::cerr << "EXPR_EQ\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3148 case EXPR_NE: std::cerr << "EXPR_NE\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3149 case EXPR_GE: std::cerr << "EXPR_GE\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3150 case EXPR_GT: std::cerr << "EXPR_GT\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3151 case LEFTDIV: std::cerr << "LEFTDIV\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3152 case EMUL: std::cerr << "EMUL\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3153 case EDIV: std::cerr << "EDIV\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3154 case ELEFTDIV: std::cerr << "ELEFTDIV\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3155 case EPLUS: std::cerr << "EPLUS\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3156 case EMINUS: std::cerr << "EMINUS\n"; break; |
16284
09881dab3aaf
* lex.ll, oct-parse.in.yy (HERMITIAN): Rename token from QUOTE.
John W. Eaton <jwe@octave.org>
parents:
16283
diff
changeset
|
3157 case HERMITIAN: std::cerr << "HERMITIAN\n"; break; |
16119
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maint: reorder class definitions in lex.ll
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|
3158 case TRANSPOSE: std::cerr << "TRANSPOSE\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3159 case PLUS_PLUS: std::cerr << "PLUS_PLUS\n"; break; |
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John W. Eaton <jwe@octave.org>
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|
3160 case MINUS_MINUS: std::cerr << "MINUS_MINUS\n"; break; |
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|
3161 case POW: std::cerr << "POW\n"; break; |
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maint: reorder class definitions in lex.ll
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|
3162 case EPOW: std::cerr << "EPOW\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3163 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3164 case NUM: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3165 case IMAG_NUM: |
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
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|
3166 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
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16146
diff
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|
3167 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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|
3168 std::cerr << (tok == NUM ? "NUM" : "IMAG_NUM") |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
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|
3169 << " [" << 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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|
3170 } |
16119
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3171 break; |
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maint: reorder class definitions in lex.ll
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|
3172 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
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|
3173 case STRUCT_ELT: |
16126
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
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|
3174 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3175 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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diff
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|
3176 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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diff
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|
3177 } |
5c885c13bfa3
localize use of yylval.tok_val in lexical_feedback member functions
John W. Eaton <jwe@octave.org>
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|
3178 break; |
16119
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3179 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3180 case NAME: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
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|
3181 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
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16146
diff
changeset
|
3182 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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|
3183 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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|
3184 std::cerr << "NAME"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3185 if (sr) |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3186 std::cerr << " [" << sr->name () << "]"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3187 std::cerr << "\n"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3188 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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changeset
|
3189 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3190 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3191 case END: std::cerr << "END\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3192 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3193 case DQ_STRING: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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16118
diff
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|
3194 case SQ_STRING: |
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
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|
3195 { |
16148
10abbc493f50
delete unnecessary X-> references inside class X member functions
John W. Eaton <jwe@octave.org>
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16146
diff
changeset
|
3196 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
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|
3197 |
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
|
3198 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>
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diff
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|
3199 << " [" << 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
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|
3200 } |
16119
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3201 break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3202 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3203 case FOR: std::cerr << "FOR\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3204 case WHILE: std::cerr << "WHILE\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3205 case DO: std::cerr << "DO\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3206 case UNTIL: std::cerr << "UNTIL\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3207 case IF: std::cerr << "IF\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3208 case ELSEIF: std::cerr << "ELSEIF\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3209 case ELSE: std::cerr << "ELSE\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3210 case SWITCH: std::cerr << "SWITCH\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3211 case CASE: std::cerr << "CASE\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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diff
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|
3212 case OTHERWISE: std::cerr << "OTHERWISE\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3213 case BREAK: std::cerr << "BREAK\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3214 case CONTINUE: std::cerr << "CONTINUE\n"; break; |
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John W. Eaton <jwe@octave.org>
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|
3215 case FUNC_RET: std::cerr << "FUNC_RET\n"; break; |
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John W. Eaton <jwe@octave.org>
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|
3216 case UNWIND: std::cerr << "UNWIND\n"; break; |
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John W. Eaton <jwe@octave.org>
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|
3217 case CLEANUP: std::cerr << "CLEANUP\n"; break; |
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John W. Eaton <jwe@octave.org>
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|
3218 case TRY: std::cerr << "TRY\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3219 case CATCH: std::cerr << "CATCH\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3220 case GLOBAL: std::cerr << "GLOBAL\n"; break; |
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maint: reorder class definitions in lex.ll
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|
3221 case PERSISTENT: std::cerr << "PERSISTENT\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3222 case FCN_HANDLE: std::cerr << "FCN_HANDLE\n"; break; |
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3223 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>
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|
3224 case LEXICAL_ERROR: std::cerr << "LEXICAL_ERROR\n\n"; break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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changeset
|
3225 case FCN: std::cerr << "FCN\n"; break; |
16203
127cccb037bf
move more global parser and lexer variables to classes
John W. Eaton <jwe@octave.org>
parents:
16199
diff
changeset
|
3226 case INPUT_FILE: std::cerr << "INPUT_FILE\n"; break; |
16119
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maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
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|
3227 case SUPERCLASSREF: std::cerr << "SUPERCLASSREF\n"; break; |
b31eb56f4d84
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John W. Eaton <jwe@octave.org>
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changeset
|
3228 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
|
3229 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
|
3230 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
|
3231 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
|
3232 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
|
3233 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
|
3234 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
|
3235 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
|
3236 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
|
3237 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
|
3238 default: |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3239 { |
16166
cb80b1d062b1
don't attempt to print unprintable tokens
John W. Eaton <jwe@octave.org>
parents:
16164
diff
changeset
|
3240 if (tok < 256 && tok > 31) |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3241 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
|
3242 else |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3243 std::cerr << "UNKNOWN(" << tok << ")\n"; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3244 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3245 break; |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3246 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3247 } |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3248 |
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3249 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3250 octave_base_lexer::fatal_error (const char *msg) |
16129
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3251 { |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3252 error (msg); |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3253 |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3254 OCTAVE_QUIT; |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3255 |
16149
49dfba4fd3c5
use pure parser and reentrant lexer interfaces
John W. Eaton <jwe@octave.org>
parents:
16148
diff
changeset
|
3256 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
|
3257 } |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3258 |
053b0364b507
localize use of yy_fatal_error with lexical_feedback member function
John W. Eaton <jwe@octave.org>
parents:
16128
diff
changeset
|
3259 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3260 octave_base_lexer::lexer_debug (const char *pattern) |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3261 { |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3262 if (lexer_debug_flag) |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3263 { |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3264 std::cerr << std::endl; |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3265 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3266 display_start_state (); |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3267 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3268 std::cerr << "P: " << pattern << std::endl; |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3269 std::cerr << "T: " << flex_yytext () << std::endl; |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3270 } |
16119
b31eb56f4d84
maint: reorder class definitions in lex.ll
John W. Eaton <jwe@octave.org>
parents:
16118
diff
changeset
|
3271 } |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3272 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3273 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3274 octave_base_lexer::push_start_state (int state) |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3275 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3276 OCTAVE_YYG; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3277 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3278 start_state_stack.push (state); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3279 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3280 BEGIN (start_state ()); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3281 } |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3282 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3283 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3284 octave_base_lexer::pop_start_state (void) |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3285 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3286 OCTAVE_YYG; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3287 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3288 start_state_stack.pop (); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3289 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3290 BEGIN (start_state ()); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3291 } |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3292 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3293 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3294 octave_base_lexer::clear_start_state (void) |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3295 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3296 while (! start_state_stack.empty ()) |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3297 start_state_stack.pop (); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3298 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3299 push_start_state (INITIAL); |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3300 } |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3301 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3302 void |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3303 octave_base_lexer::display_start_state (void) const |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3304 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3305 std::cerr << "S: "; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3306 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3307 switch (start_state ()) |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3308 { |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3309 case INITIAL: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3310 std::cerr << "INITIAL" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3311 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3312 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3313 case COMMAND_START: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3314 std::cerr << "COMMAND_START" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3315 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3316 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3317 case MATRIX_START: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3318 std::cerr << "MATRIX_START" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3319 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3320 |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3321 case INPUT_FILE_START: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3322 std::cerr << "INPUT_FILE_BEGIN" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3323 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3324 |
16228
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3325 case BLOCK_COMMENT_START: |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3326 std::cerr << "BLOCK_COMMENT_START" << std::endl; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3327 break; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3328 |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3329 case LINE_COMMENT_START: |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3330 std::cerr << "LINE_COMMENT_START" << std::endl; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3331 break; |
e19b1632d7c1
revamp most comment handling
John W. Eaton <jwe@octave.org>
parents:
16224
diff
changeset
|
3332 |
16903
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3333 case DQ_STRING_START: |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3334 std::cerr << "DQ_STRING_START" << std::endl; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3335 break; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3336 |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3337 case SQ_STRING_START: |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3338 std::cerr << "SQ_STRING_START" << std::endl; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3339 break; |
f21194531877
improve character string handling in the lexer
John W. Eaton <jwe@octave.org>
parents:
16898
diff
changeset
|
3340 |
16224
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3341 default: |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3342 std::cerr << "UNKNOWN START STATE!" << std::endl; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3343 break; |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3344 } |
4a848eb52de2
use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents:
16209
diff
changeset
|
3345 } |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3346 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3347 int |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3348 octave_base_lexer::handle_op (const char *pattern, int tok, bool bos) |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3349 { |
16263
9acb86e6ac90
4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents:
16261
diff
changeset
|
3350 lexer_debug (pattern); |
9acb86e6ac90
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3351 |
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3352 return handle_op_internal (tok, bos, true); |
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3353 } |
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3354 |
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|
3355 int |
19852
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Carnë Draug <carandraug@octave.org>
parents:
19849
diff
changeset
|
3356 octave_base_lexer::handle_language_extension_op (const char *pattern, int tok, |
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parents:
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diff
changeset
|
3357 bool bos) |
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3358 { |
16263
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3359 lexer_debug (pattern); |
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3360 |
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3361 return handle_op_internal (tok, bos, false); |
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3362 } |
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3363 |
16263
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3364 bool |
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3365 octave_base_lexer::maybe_unput_comma_before_unary_op (int tok) |
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3366 { |
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3367 int prev_tok = previous_token_value (); |
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3368 |
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3369 bool unput_comma = false; |
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3370 |
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parents:
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3371 if (whitespace_is_significant () && space_follows_previous_token ()) |
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3372 { |
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parents:
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3373 int c = text_yyinput (); |
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parents:
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3374 xunput (c); |
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3375 |
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3376 bool space_after = (c == ' ' || c == '\t'); |
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3377 |
16267
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3378 if (! (prev_tok == '[' || prev_tok == '{' |
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3379 || previous_token_is_binop () |
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3380 || ((tok == '+' || tok == '-') && space_after))) |
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3381 unput_comma = true; |
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3382 } |
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3383 |
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3384 return unput_comma; |
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3385 } |
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3386 |
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3387 int |
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3388 octave_base_lexer::handle_unary_op (int tok, bool bos) |
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3389 { |
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3390 return maybe_unput_comma_before_unary_op (tok) |
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3391 ? -1 : handle_op_internal (tok, bos, true); |
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3392 } |
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3393 |
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parents:
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changeset
|
3394 int |
19852
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Rename 'matlab-incompatible' warning to 'language-extension'.
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
3395 octave_base_lexer::handle_language_extension_unary_op (int tok, bool bos) |
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3396 { |
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3397 return maybe_unput_comma_before_unary_op (tok) |
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3398 ? -1 : handle_op_internal (tok, bos, false); |
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3399 } |
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parents:
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3400 |
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|
3401 int |
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3402 octave_base_lexer::handle_op_internal (int tok, bool bos, bool compat) |
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3403 { |
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|
3404 if (! compat) |
19852
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parents:
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changeset
|
3405 gripe_language_extension_operator (flex_yytext ()); |
16229
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3406 |
16255
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store more info in token value class
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parents:
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3407 push_token (new token (tok, input_line_number, current_input_column)); |
16229
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3408 |
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parents:
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|
3409 current_input_column += flex_yyleng (); |
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parents:
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diff
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|
3410 looking_for_object_index = false; |
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parents:
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diff
changeset
|
3411 at_beginning_of_statement = bos; |
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parents:
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diff
changeset
|
3412 |
16643
4258750c76ed
don't push operator tokens twice
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parents:
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diff
changeset
|
3413 return count_token_internal (tok); |
16229
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parents:
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diff
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|
3414 } |
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parents:
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changeset
|
3415 |
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parents:
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changeset
|
3416 int |
16293
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parents:
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changeset
|
3417 octave_base_lexer::handle_token (const std::string& name, int tok) |
16229
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use functions instead of token return macros in lexer
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parents:
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diff
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|
3418 { |
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store more info in token value class
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parents:
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diff
changeset
|
3419 token *tok_val = new token (tok, name, input_line_number, |
12bf6a3f8c45
store more info in token value class
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parents:
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diff
changeset
|
3420 current_input_column); |
16231
2b15ae55c721
put all tokens in the token cache
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parents:
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diff
changeset
|
3421 |
2b15ae55c721
put all tokens in the token cache
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parents:
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diff
changeset
|
3422 return handle_token (tok, tok_val); |
16229
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use functions instead of token return macros in lexer
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parents:
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diff
changeset
|
3423 } |
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parents:
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diff
changeset
|
3424 |
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use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3425 int |
16293
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create base class for lexer
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parents:
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diff
changeset
|
3426 octave_base_lexer::handle_token (int tok, token *tok_val) |
16229
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use functions instead of token return macros in lexer
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parents:
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diff
changeset
|
3427 { |
16231
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put all tokens in the token cache
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parents:
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diff
changeset
|
3428 if (! tok_val) |
16255
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store more info in token value class
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parents:
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diff
changeset
|
3429 tok_val = new token (tok, input_line_number, current_input_column); |
16231
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put all tokens in the token cache
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parents:
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diff
changeset
|
3430 |
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put all tokens in the token cache
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parents:
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diff
changeset
|
3431 push_token (tok_val); |
2b15ae55c721
put all tokens in the token cache
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parents:
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diff
changeset
|
3432 |
16229
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use functions instead of token return macros in lexer
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parents:
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diff
changeset
|
3433 current_input_column += flex_yyleng (); |
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parents:
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diff
changeset
|
3434 |
16257
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parents:
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diff
changeset
|
3435 return count_token_internal (tok); |
16229
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parents:
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diff
changeset
|
3436 } |
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parents:
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diff
changeset
|
3437 |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3438 int |
16293
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parents:
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diff
changeset
|
3439 octave_base_lexer::count_token (int tok) |
16229
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diff
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|
3440 { |
16257
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diff
changeset
|
3441 token *tok_val = new token (tok, input_line_number, current_input_column); |
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changeset
|
3442 |
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parents:
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diff
changeset
|
3443 push_token (tok_val); |
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changeset
|
3444 |
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parents:
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diff
changeset
|
3445 return count_token_internal (tok); |
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diff
changeset
|
3446 } |
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changeset
|
3447 |
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parents:
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diff
changeset
|
3448 int |
16293
57e87ddfee14
create base class for lexer
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parents:
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diff
changeset
|
3449 octave_base_lexer::count_token_internal (int tok) |
16257
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|
3450 { |
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|
3451 if (tok != '\n') |
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diff
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|
3452 { |
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parents:
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diff
changeset
|
3453 Vtoken_count++; |
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diff
changeset
|
3454 token_count++; |
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diff
changeset
|
3455 } |
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parents:
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diff
changeset
|
3456 |
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parents:
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diff
changeset
|
3457 return show_token (tok); |
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diff
changeset
|
3458 } |
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parents:
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diff
changeset
|
3459 |
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parents:
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diff
changeset
|
3460 int |
16293
57e87ddfee14
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parents:
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diff
changeset
|
3461 octave_base_lexer::show_token (int tok) |
16229
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|
3462 { |
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parents:
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diff
changeset
|
3463 if (Vdisplay_tokens) |
7b7b1e4968e8
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parents:
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diff
changeset
|
3464 display_token (tok); |
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parents:
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diff
changeset
|
3465 |
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parents:
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diff
changeset
|
3466 if (lexer_debug_flag) |
7b7b1e4968e8
use functions instead of token return macros in lexer
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parents:
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diff
changeset
|
3467 { |
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parents:
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diff
changeset
|
3468 std::cerr << "R: "; |
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use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3469 display_token (tok); |
19593
446c46af4b42
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
18974
diff
changeset
|
3470 std::cerr << std::endl; |
16229
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3471 } |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3472 |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3473 return tok; |
7b7b1e4968e8
use functions instead of token return macros in lexer
John W. Eaton <jwe@octave.org>
parents:
16228
diff
changeset
|
3474 } |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3475 |
18520
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3476 void |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3477 octave_base_lexer::enable_fq_identifier (void) |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3478 { |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3479 push_start_state (FQ_IDENT_START); |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3480 } |
932aca9a7c57
Allow multi-level classdef package.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
18497
diff
changeset
|
3481 |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3482 int |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3483 octave_lexer::fill_flex_buffer (char *buf, unsigned max_size) |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3484 { |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3485 int status = 0; |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3486 |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3487 if (input_buf.empty ()) |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3488 { |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3489 bool eof = false; |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3490 current_input_line = input_reader.get_input (eof); |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3491 input_buf.fill (current_input_line, eof); |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3492 } |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3493 |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3494 if (! input_buf.empty ()) |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3495 status = input_buf.copy_chunk (buf, max_size); |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3496 else |
19379
c1ce43276b86
avoid printing debug location in cmd window when using GUI to step
John W. Eaton <jwe@octave.org>
parents:
19285
diff
changeset
|
3497 status = YY_NULL; |
16293
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3498 |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3499 return status; |
57e87ddfee14
create base class for lexer
John W. Eaton <jwe@octave.org>
parents:
16292
diff
changeset
|
3500 } |
16294
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3501 |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3502 int |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3503 octave_push_lexer::fill_flex_buffer (char *buf, unsigned max_size) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3504 { |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3505 int status = 0; |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3506 |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3507 if (input_buf.empty () && ! input_buf.at_eof ()) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3508 input_buf.fill (std::string (1, static_cast<char> (1)), false); |
19593
446c46af4b42
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
18974
diff
changeset
|
3509 |
16294
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3510 if (! input_buf.empty ()) |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3511 status = input_buf.copy_chunk (buf, max_size); |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3512 else |
19379
c1ce43276b86
avoid printing debug location in cmd window when using GUI to step
John W. Eaton <jwe@octave.org>
parents:
19285
diff
changeset
|
3513 status = YY_NULL; |
16294
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3514 |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3515 return status; |
0925d1f6875e
push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents:
16293
diff
changeset
|
3516 } |
18224
615fdd2238c1
improve compatibility of command syntax parsing (bug #41032)
Michael C. Grant <mcg@cvxr.com>
parents:
18139
diff
changeset
|
3517 |