Mercurial > octave-nkf
annotate libinterp/parse-tree/lex.ll @ 16103:6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
* lex.h, lex.ll (input_line_number, current_input_column): Move global
variables to lexical_feedback class. Change all uses.
(reset_parser): Don't reset input_line_number or current_input_column.
* oct-parse.yy (eval_string, parse_fcn_file): Don't protect
input_line_number or current_input_column here.
(parse_fcn_file): Protect lexer_flags prior to calling
gobble_leading_whitespace. Use reset_parser to reset lexer_flags.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Mon, 25 Feb 2013 21:30:51 -0500 |
parents | 679a54d274d9 |
children | c8974e28da59 |
rev | line source |
---|---|
1994 | 1 /* |
1 | 2 |
14138
72c96de7a403
maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
parents:
14074
diff
changeset
|
3 Copyright (C) 1993-2012 John W. Eaton |
1 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
10 option) any later version. | |
1 | 11 |
12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
1 | 20 |
21 */ | |
22 | |
4753 | 23 %option prefix = "octave_" |
24 | |
10019
7ad32bf759c3
lex.cc: Use %top block to include config.h
John W. Eaton <jwe@octave.org>
parents:
9794
diff
changeset
|
25 %top { |
7ad32bf759c3
lex.cc: Use %top block to include config.h
John W. Eaton <jwe@octave.org>
parents:
9794
diff
changeset
|
26 #ifdef HAVE_CONFIG_H |
7ad32bf759c3
lex.cc: Use %top block to include config.h
John W. Eaton <jwe@octave.org>
parents:
9794
diff
changeset
|
27 #include <config.h> |
7ad32bf759c3
lex.cc: Use %top block to include config.h
John W. Eaton <jwe@octave.org>
parents:
9794
diff
changeset
|
28 #endif |
10411 | 29 |
10019
7ad32bf759c3
lex.cc: Use %top block to include config.h
John W. Eaton <jwe@octave.org>
parents:
9794
diff
changeset
|
30 } |
7ad32bf759c3
lex.cc: Use %top block to include config.h
John W. Eaton <jwe@octave.org>
parents:
9794
diff
changeset
|
31 |
4208 | 32 %s COMMAND_START |
33 %s MATRIX_START | |
4240 | 34 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
35 %x SCRIPT_FILE_BEGIN |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
36 %x FUNCTION_FILE_BEGIN |
1 | 37 |
38 %{ | |
240 | 39 |
1341 | 40 #include <cctype> |
41 #include <cstring> | |
42 | |
8950
d865363208d6
include <iosfwd> instead of <iostream> in header files
John W. Eaton <jwe@octave.org>
parents:
8920
diff
changeset
|
43 #include <iostream> |
8001
ff9e7873f8ea
improve handling of command-style names in matrix_or_assign_lhs context
John W. Eaton <jwe@octave.org>
parents:
7898
diff
changeset
|
44 #include <set> |
5765 | 45 #include <sstream> |
1823 | 46 #include <string> |
4214 | 47 #include <stack> |
1823 | 48 |
4093 | 49 #include <sys/types.h> |
50 #include <unistd.h> | |
51 | |
2926 | 52 #include "cmd-edit.h" |
4153 | 53 #include "quit.h" |
4910 | 54 #include "lo-mappers.h" |
2926 | 55 |
1497 | 56 // These would be alphabetical, but y.tab.h must be included before |
57 // oct-gperf.h and y.tab.h must be included after token.h and the tree | |
58 // class declarations. We can't include y.tab.h in oct-gperf.h | |
59 // because it may not be protected to allow it to be included multiple | |
60 // times. | |
61 | |
4264 | 62 #include "Cell.h" |
3665 | 63 #include "comment-list.h" |
2181 | 64 #include "defun.h" |
1355 | 65 #include "error.h" |
4910 | 66 #include "gripes.h" |
1351 | 67 #include "input.h" |
1355 | 68 #include "lex.h" |
2891 | 69 #include "ov.h" |
1355 | 70 #include "parse.h" |
14329
8d1ae996c122
also save and restore symbol table context in parser (bug #35448)
John W. Eaton <jwe@octave.org>
parents:
14294
diff
changeset
|
71 #include "parse-private.h" |
2987 | 72 #include "pt-all.h" |
2891 | 73 #include "symtab.h" |
74 #include "token.h" | |
75 #include "toplev.h" | |
1355 | 76 #include "utils.h" |
77 #include "variables.h" | |
9794
0d4613a736e9
convert build system to use automake and libtool
John W. Eaton <jwe@octave.org>
parents:
9476
diff
changeset
|
78 #include <oct-parse.h> |
2492 | 79 #include <oct-gperf.h> |
1 | 80 |
10426
4db7beace28e
oct-parse.yy, lex.ll: use symbols via gnulib namespace
John W. Eaton <jwe@octave.org>
parents:
10411
diff
changeset
|
81 #if defined (GNULIB_NAMESPACE) |
4db7beace28e
oct-parse.yy, lex.ll: use symbols via gnulib namespace
John W. Eaton <jwe@octave.org>
parents:
10411
diff
changeset
|
82 // Calls to the following functions appear in the generated output from |
4db7beace28e
oct-parse.yy, lex.ll: use symbols via gnulib namespace
John W. Eaton <jwe@octave.org>
parents:
10411
diff
changeset
|
83 // flex without the namespace tag. Redefine them so we will use them |
4db7beace28e
oct-parse.yy, lex.ll: use symbols via gnulib namespace
John W. Eaton <jwe@octave.org>
parents:
10411
diff
changeset
|
84 // via the gnulib namespace. |
4db7beace28e
oct-parse.yy, lex.ll: use symbols via gnulib namespace
John W. Eaton <jwe@octave.org>
parents:
10411
diff
changeset
|
85 #define fprintf GNULIB_NAMESPACE::fprintf |
4db7beace28e
oct-parse.yy, lex.ll: use symbols via gnulib namespace
John W. Eaton <jwe@octave.org>
parents:
10411
diff
changeset
|
86 #define fwrite GNULIB_NAMESPACE::fwrite |
14161
f4b5a2f899d3
check in change accidentally omitted from previuos changeset
John W. Eaton <jwe@octave.org>
parents:
14138
diff
changeset
|
87 #define isatty GNULIB_NAMESPACE::isatty |
10426
4db7beace28e
oct-parse.yy, lex.ll: use symbols via gnulib namespace
John W. Eaton <jwe@octave.org>
parents:
10411
diff
changeset
|
88 #define malloc GNULIB_NAMESPACE::malloc |
4db7beace28e
oct-parse.yy, lex.ll: use symbols via gnulib namespace
John W. Eaton <jwe@octave.org>
parents:
10411
diff
changeset
|
89 #define realloc GNULIB_NAMESPACE::realloc |
4db7beace28e
oct-parse.yy, lex.ll: use symbols via gnulib namespace
John W. Eaton <jwe@octave.org>
parents:
10411
diff
changeset
|
90 #endif |
4db7beace28e
oct-parse.yy, lex.ll: use symbols via gnulib namespace
John W. Eaton <jwe@octave.org>
parents:
10411
diff
changeset
|
91 |
2716 | 92 #if ! (defined (FLEX_SCANNER) \ |
93 && defined (YY_FLEX_MAJOR_VERSION) && YY_FLEX_MAJOR_VERSION >= 2 \ | |
94 && defined (YY_FLEX_MINOR_VERSION) && YY_FLEX_MINOR_VERSION >= 5) | |
95 #error lex.l requires flex version 2.5.4 or later | |
96 #endif | |
97 | |
4753 | 98 #define yylval octave_lval |
99 | |
100 // Arrange to get input via readline. | |
101 | |
102 #ifdef YY_INPUT | |
103 #undef YY_INPUT | |
104 #endif | |
105 #define YY_INPUT(buf, result, max_size) \ | |
16098
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
106 result = octave_read (buf, max_size) |
4753 | 107 |
108 // Try to avoid crashing out completely on fatal scanner errors. | |
109 // The call to yy_fatal_error should never happen, but it avoids a | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
110 // 'static function defined but not used' warning from gcc. |
4753 | 111 |
112 #ifdef YY_FATAL_ERROR | |
113 #undef YY_FATAL_ERROR | |
114 #endif | |
115 #define YY_FATAL_ERROR(msg) \ | |
116 do \ | |
117 { \ | |
118 error (msg); \ | |
119 OCTAVE_QUIT; \ | |
120 yy_fatal_error (msg); \ | |
121 } \ | |
122 while (0) | |
123 | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
124 #define DISPLAY_TOK_AND_RETURN(tok) \ |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
125 do \ |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
126 { \ |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
127 int tok_val = tok; \ |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
128 if (Vdisplay_tokens) \ |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
129 display_token (tok_val); \ |
8535 | 130 if (lexer_debug_flag) \ |
131 { \ | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
132 std::cerr << "R: "; \ |
8535 | 133 display_token (tok_val); \ |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
134 std::cerr << std::endl; \ |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
135 } \ |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
136 return tok_val; \ |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
137 } \ |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
138 while (0) |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
139 |
4910 | 140 #define COUNT_TOK_AND_RETURN(tok) \ |
141 do \ | |
142 { \ | |
143 Vtoken_count++; \ | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
144 DISPLAY_TOK_AND_RETURN (tok); \ |
4910 | 145 } \ |
146 while (0) | |
147 | |
4753 | 148 #define TOK_RETURN(tok) \ |
149 do \ | |
150 { \ | |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
151 lexer_flags.current_input_column += yyleng; \ |
4753 | 152 lexer_flags.quote_is_transpose = false; \ |
153 lexer_flags.convert_spaces_to_comma = true; \ | |
4910 | 154 COUNT_TOK_AND_RETURN (tok); \ |
4753 | 155 } \ |
156 while (0) | |
157 | |
158 #define TOK_PUSH_AND_RETURN(name, tok) \ | |
159 do \ | |
160 { \ | |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
161 yylval.tok_val = new token (name, lexer_flags.input_line_number, \ |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
162 lexer_flags.current_input_column); \ |
4753 | 163 token_stack.push (yylval.tok_val); \ |
164 TOK_RETURN (tok); \ | |
165 } \ | |
166 while (0) | |
167 | |
12627
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
168 #define BIN_OP_RETURN_INTERNAL(tok, convert, bos, qit) \ |
4753 | 169 do \ |
170 { \ | |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
171 yylval.tok_val = new token (lexer_flags.input_line_number, \ |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
172 lexer_flags.current_input_column); \ |
4753 | 173 token_stack.push (yylval.tok_val); \ |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
174 lexer_flags.current_input_column += yyleng; \ |
12627
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
175 lexer_flags.quote_is_transpose = qit; \ |
4753 | 176 lexer_flags.convert_spaces_to_comma = convert; \ |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
177 lexer_flags.looking_for_object_index = false; \ |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
178 lexer_flags.at_beginning_of_statement = bos; \ |
4910 | 179 COUNT_TOK_AND_RETURN (tok); \ |
4753 | 180 } \ |
181 while (0) | |
182 | |
12627
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
183 #define XBIN_OP_RETURN_INTERNAL(tok, convert, bos, qit) \ |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
184 do \ |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
185 { \ |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
186 gripe_matlab_incompatible_operator (yytext); \ |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
187 BIN_OP_RETURN_INTERNAL (tok, convert, bos, qit); \ |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
188 } \ |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
189 while (0) |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
190 |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
191 #define BIN_OP_RETURN(tok, convert, bos) \ |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
192 do \ |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
193 { \ |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
194 BIN_OP_RETURN_INTERNAL (tok, convert, bos, false); \ |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
195 } \ |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
196 while (0) |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
197 |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
198 #define XBIN_OP_RETURN(tok, convert, bos) \ |
4753 | 199 do \ |
200 { \ | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
201 gripe_matlab_incompatible_operator (yytext); \ |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
202 BIN_OP_RETURN (tok, convert, bos); \ |
4753 | 203 } \ |
204 while (0) | |
205 | |
8535 | 206 #define LEXER_DEBUG(pattern) \ |
207 do \ | |
208 { \ | |
209 if (lexer_debug_flag) \ | |
210 lexer_debug (pattern, yytext); \ | |
211 } \ | |
212 while (0) | |
213 | |
16100
6b26e18d1dcb
reorder data members in lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16098
diff
changeset
|
214 // The state of the lexer. |
1826 | 215 lexical_feedback lexer_flags; |
216 | |
1351 | 217 // Stack to hold tokens so that we can delete them when the parser is |
218 // reset and avoid growing forever just because we are stashing some | |
219 // information. This has to appear before lex.h is included, because | |
220 // one of the macros defined there uses token_stack. | |
2614 | 221 // |
5775 | 222 // FIXME -- this should really be static, but that causes |
2614 | 223 // problems on some systems. |
4214 | 224 std::stack <token*> token_stack; |
1351 | 225 |
1826 | 226 // Did eat_whitespace() eat a space or tab, or a newline, or both? |
1 | 227 |
1826 | 228 typedef int yum_yum; |
1 | 229 |
1826 | 230 const yum_yum ATE_NOTHING = 0; |
231 const yum_yum ATE_SPACE_OR_TAB = 1; | |
232 const yum_yum ATE_NEWLINE = 2; | |
1088 | 233 |
3351 | 234 // Is the closest nesting level a square bracket, squiggly brace or a paren? |
1826 | 235 |
4214 | 236 class bracket_brace_paren_nesting_level |
1826 | 237 { |
238 public: | |
239 | |
4214 | 240 bracket_brace_paren_nesting_level (void) : context () { } |
1826 | 241 |
3351 | 242 ~bracket_brace_paren_nesting_level (void) { } |
243 | |
4214 | 244 void bracket (void) { context.push (BRACKET); } |
245 bool is_bracket (void) | |
246 { return ! context.empty () && context.top () == BRACKET; } | |
247 | |
248 void brace (void) { context.push (BRACE); } | |
249 bool is_brace (void) | |
250 { return ! context.empty () && context.top () == BRACE; } | |
251 | |
252 void paren (void) { context.push (PAREN); } | |
253 bool is_paren (void) | |
254 { return ! context.empty () && context.top () == PAREN; } | |
255 | |
4608 | 256 bool is_bracket_or_brace (void) |
257 { return (! context.empty () | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
258 && (context.top () == BRACKET || context.top () == BRACE)); } |
4608 | 259 |
4214 | 260 bool none (void) { return context.empty (); } |
261 | |
262 void remove (void) { if (! context.empty ()) context.pop (); } | |
263 | |
264 void clear (void) { while (! context.empty ()) context.pop (); } | |
1826 | 265 |
266 private: | |
267 | |
4214 | 268 std::stack<int> context; |
269 | |
5225 | 270 static const int BRACKET; |
271 static const int BRACE; | |
272 static const int PAREN; | |
1826 | 273 |
3351 | 274 bracket_brace_paren_nesting_level (const bracket_brace_paren_nesting_level&); |
1826 | 275 |
3351 | 276 bracket_brace_paren_nesting_level& |
277 operator = (const bracket_brace_paren_nesting_level&); | |
1826 | 278 }; |
279 | |
5225 | 280 const int bracket_brace_paren_nesting_level::BRACKET = 1; |
281 const int bracket_brace_paren_nesting_level::BRACE = 2; | |
282 const int bracket_brace_paren_nesting_level::PAREN = 3; | |
283 | |
3351 | 284 static bracket_brace_paren_nesting_level nesting_level; |
1 | 285 |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
286 static bool Vdisplay_tokens = false; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
287 |
4910 | 288 static unsigned int Vtoken_count = 0; |
289 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
290 // The start state that was in effect when the beginning of a block |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
291 // comment was noticed. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
292 static int block_comment_nesting_level = 0; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
293 |
8535 | 294 // Internal variable for lexer debugging state. |
295 static bool lexer_debug_flag = false; | |
296 | |
146 | 297 // Forward declarations for functions defined at the bottom of this |
298 // file. | |
299 | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
300 static int text_yyinput (void); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
301 static void xunput (char c, char *buf); |
1 | 302 static void fixup_column_count (char *s); |
146 | 303 static void do_comma_insert_check (void); |
4867 | 304 static int is_keyword_token (const std::string& s); |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
305 static int process_comment (bool start_in_block, bool& eof); |
2857 | 306 static bool match_any (char c, const char *s); |
3263 | 307 static bool next_token_is_sep_op (void); |
3246 | 308 static bool next_token_is_bin_op (bool spc_prev); |
309 static bool next_token_is_postfix_unary_op (bool spc_prev); | |
3523 | 310 static std::string strip_trailing_whitespace (char *s); |
3246 | 311 static void handle_number (void); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
312 static int handle_string (char delim); |
4612 | 313 static int handle_close_bracket (bool spc_gobbled, int bracket_type); |
9476 | 314 static int handle_superclass_identifier (void); |
315 static int handle_meta_identifier (void); | |
3974 | 316 static int handle_identifier (void); |
3096 | 317 static bool have_continuation (bool trailing_comments_ok = true); |
318 static bool have_ellipsis_continuation (bool trailing_comments_ok = true); | |
3665 | 319 static void scan_for_comments (const char *); |
1826 | 320 static yum_yum eat_whitespace (void); |
321 static yum_yum eat_continuation (void); | |
16098
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
322 static int octave_read (char *buf, unsigned int max_size); |
3388 | 323 static void maybe_warn_separator_insert (char sep); |
3400 | 324 static void gripe_single_quote_string (void); |
4037 | 325 static void gripe_matlab_incompatible (const std::string& msg); |
326 static void maybe_gripe_matlab_incompatible_comment (char c); | |
327 static void gripe_matlab_incompatible_continuation (void); | |
328 static void gripe_matlab_incompatible_operator (const std::string& op); | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
329 static void display_token (int tok); |
8535 | 330 static void lexer_debug (const char *pattern, const char *text); |
1 | 331 |
332 %} | |
333 | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
334 D [0-9] |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
335 S [ \t] |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
336 NL ((\n)|(\r)|(\r\n)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
337 SNL ({S}|{NL}) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
338 EL (\.\.\.) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
339 BS (\\) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
340 CONT ({EL}|{BS}) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
341 Im [iIjJ] |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
342 CCHAR [#%] |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
343 COMMENT ({CCHAR}.*{NL}) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
344 SNLCMT ({SNL}|{COMMENT}) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
345 NOT ((\~)|(\!)) |
4037 | 346 POW ((\*\*)|(\^)) |
347 EPOW (\.{POW}) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
348 IDENT ([_$a-zA-Z][_$a-zA-Z0-9]*) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
349 EXPON ([DdEe][+-]?{D}+) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
350 NUMBER (({D}+\.?{D}*{EXPON}?)|(\.{D}+{EXPON}?)|(0[xX][0-9a-fA-F]+)) |
1 | 351 %% |
352 | |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
353 %{ |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
354 // Make script and function files start with a bogus token. This makes |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
355 // the parser go down a special path. |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
356 %} |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
357 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
358 <SCRIPT_FILE_BEGIN>. { |
8535 | 359 LEXER_DEBUG ("<SCRIPT_FILE_BEGIN>."); |
360 | |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
361 BEGIN (INITIAL); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
362 xunput (yytext[0], yytext); |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
363 COUNT_TOK_AND_RETURN (SCRIPT_FILE); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
364 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
365 |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
366 <FUNCTION_FILE_BEGIN>. { |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
367 LEXER_DEBUG ("<FUNCTION_FILE_BEGIN>."); |
8535 | 368 |
4323 | 369 BEGIN (INITIAL); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
370 xunput (yytext[0], yytext); |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
371 COUNT_TOK_AND_RETURN (FUNCTION_FILE); |
4238 | 372 } |
373 | |
968 | 374 %{ |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
375 // Help and other command-style functions. |
968 | 376 %} |
377 | |
4208 | 378 <COMMAND_START>{NL} { |
8535 | 379 LEXER_DEBUG ("<COMMAND_START>{NL}"); |
380 | |
4323 | 381 BEGIN (INITIAL); |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
382 lexer_flags.input_line_number++; |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
383 lexer_flags.current_input_column = 1; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
384 |
2857 | 385 lexer_flags.quote_is_transpose = false; |
386 lexer_flags.convert_spaces_to_comma = true; | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
387 lexer_flags.looking_for_object_index = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
388 lexer_flags.at_beginning_of_statement = true; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
389 |
4910 | 390 COUNT_TOK_AND_RETURN ('\n'); |
967 | 391 } |
1 | 392 |
4208 | 393 <COMMAND_START>[\;\,] { |
8535 | 394 LEXER_DEBUG ("<COMMAND_START>[\\;\\,]"); |
395 | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
396 lexer_flags.looking_for_object_index = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
397 lexer_flags.at_beginning_of_statement = true; |
5102 | 398 |
399 BEGIN (INITIAL); | |
400 | |
401 if (strcmp (yytext, ",") == 0) | |
402 TOK_RETURN (','); | |
967 | 403 else |
5102 | 404 TOK_RETURN (';'); |
967 | 405 } |
1 | 406 |
4208 | 407 <COMMAND_START>[\"\'] { |
8535 | 408 LEXER_DEBUG ("<COMMAND_START>[\\\"\\']"); |
409 | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
410 lexer_flags.at_beginning_of_statement = false; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
411 |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
412 lexer_flags.current_input_column++; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
413 int tok = handle_string (yytext[0]); |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
414 |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
415 COUNT_TOK_AND_RETURN (tok); |
975 | 416 } |
417 | |
4923 | 418 <COMMAND_START>[^#% \t\r\n\;\,\"\'][^ \t\r\n\;\,]*{S}* { |
8535 | 419 LEXER_DEBUG ("<COMMAND_START>[^#% \\t\\r\\n\\;\\,\\\"\\'][^ \\t\\r\\n\\;\\,]*{S}*"); |
420 | |
3523 | 421 std::string tok = strip_trailing_whitespace (yytext); |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
422 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
423 lexer_flags.looking_for_object_index = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
424 lexer_flags.at_beginning_of_statement = false; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
425 |
5279 | 426 TOK_PUSH_AND_RETURN (tok, SQ_STRING); |
967 | 427 } |
1 | 428 |
968 | 429 %{ |
1 | 430 // For this and the next two rules, we're looking at ']', and we |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
431 // need to know if the next token is '=' or '=='. |
1 | 432 // |
433 // It would have been so much easier if the delimiters were simply | |
434 // different for the expression on the left hand side of the equals | |
435 // operator. | |
971 | 436 // |
437 // It's also a pain in the ass to decide whether to insert a comma | |
438 // after seeing a ']' character... | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
439 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
440 // FIXME -- we need to handle block comments here. |
968 | 441 %} |
442 | |
4208 | 443 <MATRIX_START>{SNLCMT}*\]{S}* { |
8535 | 444 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*\\]{S}*"); |
445 | |
3665 | 446 scan_for_comments (yytext); |
1001 | 447 fixup_column_count (yytext); |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
448 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
449 lexer_flags.looking_at_object_index.pop_front (); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
450 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
451 lexer_flags.looking_for_object_index = true; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
452 lexer_flags.at_beginning_of_statement = false; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
453 |
1001 | 454 int c = yytext[yyleng-1]; |
455 int cont_is_spc = eat_continuation (); | |
4608 | 456 bool spc_gobbled = (cont_is_spc || c == ' ' || c == '\t'); |
5345 | 457 int tok_to_return = handle_close_bracket (spc_gobbled, ']'); |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
458 |
5345 | 459 if (spc_gobbled) |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
460 xunput (' ', yytext); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
461 |
5345 | 462 COUNT_TOK_AND_RETURN (tok_to_return); |
4608 | 463 } |
464 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
465 %{ |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
466 // FIXME -- we need to handle block comments here. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
467 %} |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
468 |
4608 | 469 <MATRIX_START>{SNLCMT}*\}{S}* { |
8535 | 470 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*\\}{S}*"); |
471 | |
4608 | 472 scan_for_comments (yytext); |
473 fixup_column_count (yytext); | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
474 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
475 lexer_flags.looking_at_object_index.pop_front (); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
476 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
477 lexer_flags.looking_for_object_index = true; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
478 lexer_flags.at_beginning_of_statement = false; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
479 |
4608 | 480 int c = yytext[yyleng-1]; |
481 int cont_is_spc = eat_continuation (); | |
482 bool spc_gobbled = (cont_is_spc || c == ' ' || c == '\t'); | |
5345 | 483 int tok_to_return = handle_close_bracket (spc_gobbled, '}'); |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
484 |
5345 | 485 if (spc_gobbled) |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
486 xunput (' ', yytext); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
487 |
5345 | 488 COUNT_TOK_AND_RETURN (tok_to_return); |
967 | 489 } |
1 | 490 |
968 | 491 %{ |
1088 | 492 // Commas are element separators in matrix constants. If we don't |
493 // check for continuations here we can end up inserting too many | |
494 // commas. | |
968 | 495 %} |
496 | |
4208 | 497 <MATRIX_START>{S}*\,{S}* { |
8535 | 498 LEXER_DEBUG ("<MATRIX_START>{S}*\\,{S}*"); |
499 | |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
500 lexer_flags.current_input_column += yyleng; |
3388 | 501 |
1088 | 502 int tmp = eat_continuation (); |
3388 | 503 |
2857 | 504 lexer_flags.quote_is_transpose = false; |
505 lexer_flags.convert_spaces_to_comma = true; | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
506 lexer_flags.looking_for_object_index = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
507 lexer_flags.at_beginning_of_statement = false; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
508 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
509 if (! lexer_flags.looking_at_object_index.front ()) |
3388 | 510 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
511 if ((tmp & ATE_NEWLINE) == ATE_NEWLINE) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
512 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
513 maybe_warn_separator_insert (';'); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
514 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
515 xunput (';', yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
516 } |
3388 | 517 } |
518 | |
4910 | 519 COUNT_TOK_AND_RETURN (','); |
967 | 520 } |
1 | 521 |
968 | 522 %{ |
523 // In some cases, spaces in matrix constants can turn into commas. | |
524 // If commas are required, spaces are not important in matrix | |
1088 | 525 // constants so we just eat them. If we don't check for continuations |
526 // here we can end up inserting too many commas. | |
968 | 527 %} |
430 | 528 |
4208 | 529 <MATRIX_START>{S}+ { |
8535 | 530 LEXER_DEBUG ("<MATRIX_START>{S}+"); |
531 | |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
532 lexer_flags.current_input_column += yyleng; |
3388 | 533 |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
534 lexer_flags.at_beginning_of_statement = false; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
535 |
3388 | 536 int tmp = eat_continuation (); |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
537 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
538 if (! lexer_flags.looking_at_object_index.front ()) |
967 | 539 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
540 bool bin_op = next_token_is_bin_op (true); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
541 bool postfix_un_op = next_token_is_postfix_unary_op (true); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
542 bool sep_op = next_token_is_sep_op (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
543 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
544 if (! (postfix_un_op || bin_op || sep_op) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
545 && nesting_level.is_bracket_or_brace () |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
546 && lexer_flags.convert_spaces_to_comma) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
547 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
548 if ((tmp & ATE_NEWLINE) == ATE_NEWLINE) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
549 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
550 maybe_warn_separator_insert (';'); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
551 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
552 xunput (';', yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
553 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
554 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
555 lexer_flags.quote_is_transpose = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
556 lexer_flags.convert_spaces_to_comma = true; |
13260
28e3e9158d70
fix bug with parsing cell array lists
John W. Eaton <jwe@octave.org>
parents:
13249
diff
changeset
|
557 lexer_flags.looking_for_object_index = false; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
558 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
559 maybe_warn_separator_insert (','); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
560 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
561 COUNT_TOK_AND_RETURN (','); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
562 } |
967 | 563 } |
564 } | |
430 | 565 |
968 | 566 %{ |
1088 | 567 // Semicolons are handled as row seprators in matrix constants. If we |
568 // don't eat whitespace here we can end up inserting too many | |
569 // semicolons. | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
570 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
571 // FIXME -- we need to handle block comments here. |
968 | 572 %} |
573 | |
4208 | 574 <MATRIX_START>{SNLCMT}*;{SNLCMT}* { |
8535 | 575 LEXER_DEBUG ("<MATRIX_START>{SNLCMT}*;{SNLCMT}*"); |
576 | |
3665 | 577 scan_for_comments (yytext); |
967 | 578 fixup_column_count (yytext); |
1001 | 579 eat_whitespace (); |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
580 |
2857 | 581 lexer_flags.quote_is_transpose = false; |
582 lexer_flags.convert_spaces_to_comma = true; | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
583 lexer_flags.looking_for_object_index = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
584 lexer_flags.at_beginning_of_statement = false; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
585 |
4910 | 586 COUNT_TOK_AND_RETURN (';'); |
967 | 587 } |
588 | |
968 | 589 %{ |
1088 | 590 // In some cases, new lines can also become row separators. If we |
591 // don't eat whitespace here we can end up inserting too many | |
592 // semicolons. | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
593 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
594 // FIXME -- we need to handle block comments here. |
985 | 595 %} |
596 | |
4208 | 597 <MATRIX_START>{S}*{COMMENT}{SNLCMT}* | |
598 <MATRIX_START>{S}*{NL}{SNLCMT}* { | |
8535 | 599 LEXER_DEBUG ("<MATRIX_START>{S}*{COMMENT}{SNLCMT}*|<MATRIX_START>{S}*{NL}{SNLCMT}*"); |
600 | |
3665 | 601 scan_for_comments (yytext); |
1082 | 602 fixup_column_count (yytext); |
1088 | 603 eat_whitespace (); |
3388 | 604 |
4476 | 605 lexer_flags.quote_is_transpose = false; |
606 lexer_flags.convert_spaces_to_comma = true; | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
607 lexer_flags.at_beginning_of_statement = false; |
4476 | 608 |
609 if (nesting_level.none ()) | |
610 return LEXICAL_ERROR; | |
985 | 611 |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
612 if (! lexer_flags.looking_at_object_index.front () |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
613 && nesting_level.is_bracket_or_brace ()) |
3388 | 614 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
615 maybe_warn_separator_insert (';'); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
616 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
617 COUNT_TOK_AND_RETURN (';'); |
985 | 618 } |
619 } | |
620 | |
967 | 621 \[{S}* { |
8535 | 622 LEXER_DEBUG ("\\[{S}*"); |
623 | |
3351 | 624 nesting_level.bracket (); |
975 | 625 |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
626 lexer_flags.looking_at_object_index.push_front (false); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
627 |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
628 lexer_flags.current_input_column += yyleng; |
2857 | 629 lexer_flags.quote_is_transpose = false; |
630 lexer_flags.convert_spaces_to_comma = true; | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
631 lexer_flags.looking_for_object_index = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
632 lexer_flags.at_beginning_of_statement = false; |
975 | 633 |
11464
21b5284fa78d
avoid error when parsing nested functions
John W. Eaton <jwe@octave.org>
parents:
11431
diff
changeset
|
634 if (lexer_flags.defining_func |
21b5284fa78d
avoid error when parsing nested functions
John W. Eaton <jwe@octave.org>
parents:
11431
diff
changeset
|
635 && ! lexer_flags.parsed_function_name.top ()) |
5615 | 636 lexer_flags.looking_at_return_list = true; |
637 else | |
638 lexer_flags.looking_at_matrix_or_assign_lhs = true; | |
639 | |
975 | 640 promptflag--; |
641 eat_whitespace (); | |
642 | |
5102 | 643 lexer_flags.bracketflag++; |
644 BEGIN (MATRIX_START); | |
645 COUNT_TOK_AND_RETURN ('['); | |
967 | 646 } |
1 | 647 |
968 | 648 \] { |
8535 | 649 LEXER_DEBUG ("\\]"); |
650 | |
1826 | 651 nesting_level.remove (); |
968 | 652 |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
653 lexer_flags.looking_at_object_index.pop_front (); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
654 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
655 lexer_flags.looking_for_object_index = true; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
656 lexer_flags.at_beginning_of_statement = false; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
657 |
5102 | 658 TOK_RETURN (']'); |
968 | 659 } |
660 | |
661 %{ | |
662 // Imaginary numbers. | |
663 %} | |
664 | |
665 {NUMBER}{Im} { | |
8535 | 666 LEXER_DEBUG ("{NUMBER}{Im}"); |
667 | |
3246 | 668 handle_number (); |
4910 | 669 COUNT_TOK_AND_RETURN (IMAG_NUM); |
968 | 670 } |
671 | |
672 %{ | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
673 // Real numbers. Don't grab the '.' part of a dot operator as part of |
968 | 674 // the constant. |
675 %} | |
676 | |
8535 | 677 {D}+/\.[\*/\\^\'] | |
968 | 678 {NUMBER} { |
8535 | 679 LEXER_DEBUG ("{D}+/\\.[\\*/\\^\\']|{NUMBER}"); |
3246 | 680 handle_number (); |
4910 | 681 COUNT_TOK_AND_RETURN (NUM); |
968 | 682 } |
683 | |
684 %{ | |
685 // Eat whitespace. Whitespace inside matrix constants is handled by | |
4208 | 686 // the <MATRIX_START> start state code above. |
968 | 687 %} |
688 | |
967 | 689 {S}* { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
690 lexer_flags.current_input_column += yyleng; |
967 | 691 } |
692 | |
968 | 693 %{ |
694 // Continuation lines. Allow comments after continuations. | |
695 %} | |
696 | |
967 | 697 {CONT}{S}*{NL} | |
698 {CONT}{S}*{COMMENT} { | |
8535 | 699 LEXER_DEBUG ("{CONT}{S}*{NL}|{CONT}{S}*{COMMENT}"); |
700 | |
4037 | 701 if (yytext[0] == '\\') |
702 gripe_matlab_incompatible_continuation (); | |
3665 | 703 scan_for_comments (yytext); |
967 | 704 promptflag--; |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
705 lexer_flags.input_line_number++; |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
706 lexer_flags.current_input_column = 1; |
967 | 707 } |
1 | 708 |
968 | 709 %{ |
710 // End of file. | |
711 %} | |
712 | |
967 | 713 <<EOF>> { |
8535 | 714 LEXER_DEBUG ("<<EOF>>"); |
715 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
716 if (block_comment_nesting_level != 0) |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
717 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
718 warning ("block comment open at end of input"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
719 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
720 if ((reading_fcn_file || reading_script_file || reading_classdef_file) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
721 && ! curr_fcn_file_name.empty ()) |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
722 warning ("near line %d of file '%s.m'", |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
723 lexer_flags.input_line_number, curr_fcn_file_name.c_str ()); |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
724 } |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
725 |
967 | 726 TOK_RETURN (END_OF_INPUT); |
727 } | |
1 | 728 |
968 | 729 %{ |
970 | 730 // Identifiers. Truncate the token at the first space or tab but |
731 // don't write directly on yytext. | |
968 | 732 %} |
733 | |
967 | 734 {IDENT}{S}* { |
8535 | 735 LEXER_DEBUG ("{IDENT}{S}*"); |
736 | |
4238 | 737 int id_tok = handle_identifier (); |
738 | |
739 if (id_tok >= 0) | |
9324
29563379fa9b
don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
740 COUNT_TOK_AND_RETURN (id_tok); |
967 | 741 } |
1 | 742 |
968 | 743 %{ |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
744 // Superclass method identifiers. |
9476 | 745 %} |
746 | |
747 {IDENT}@{IDENT}{S}* | | |
748 {IDENT}@{IDENT}.{IDENT}{S}* { | |
749 LEXER_DEBUG ("{IDENT}@{IDENT}{S}*|{IDENT}@{IDENT}.{IDENT}{S}*"); | |
750 | |
751 int id_tok = handle_superclass_identifier (); | |
752 | |
753 if (id_tok >= 0) | |
754 { | |
755 lexer_flags.looking_for_object_index = true; | |
756 | |
757 COUNT_TOK_AND_RETURN (SUPERCLASSREF); | |
758 } | |
759 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
760 |
9476 | 761 %{ |
762 // Metaclass query | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
763 %} |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
764 |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
765 \?{IDENT}{S}* | |
14638
5b0872b5b234
fix missing backslash quoting in lexer rules
John W. Eaton <jwe@octave.org>
parents:
14510
diff
changeset
|
766 \?{IDENT}\.{IDENT}{S}* { |
5b0872b5b234
fix missing backslash quoting in lexer rules
John W. Eaton <jwe@octave.org>
parents:
14510
diff
changeset
|
767 LEXER_DEBUG ("\\?{IDENT}{S}*|\\?{IDENT}\\.{IDENT}{S}*"); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
768 |
9476 | 769 int id_tok = handle_meta_identifier (); |
770 | |
771 if (id_tok >= 0) | |
772 { | |
773 lexer_flags.looking_for_object_index = true; | |
774 | |
775 COUNT_TOK_AND_RETURN (METAQUERY); | |
776 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
777 } |
9476 | 778 |
779 %{ | |
780 // Function handles and superclass references | |
4342 | 781 %} |
782 | |
4930 | 783 "@" { |
8535 | 784 LEXER_DEBUG ("@"); |
785 | |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
786 lexer_flags.current_input_column++; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
787 |
4930 | 788 lexer_flags.quote_is_transpose = false; |
789 lexer_flags.convert_spaces_to_comma = false; | |
790 lexer_flags.looking_at_function_handle++; | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
791 lexer_flags.looking_for_object_index = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
792 lexer_flags.at_beginning_of_statement = false; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
793 |
4930 | 794 COUNT_TOK_AND_RETURN ('@'); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
795 |
4342 | 796 } |
797 | |
798 %{ | |
968 | 799 // A new line character. New line characters inside matrix constants |
4208 | 800 // are handled by the <MATRIX_START> start state code above. If closest |
985 | 801 // nesting is inside parentheses, don't return a row separator. |
968 | 802 %} |
803 | |
967 | 804 {NL} { |
8535 | 805 LEXER_DEBUG ("{NL}"); |
806 | |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
807 lexer_flags.input_line_number++; |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
808 lexer_flags.current_input_column = 1; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
809 |
2857 | 810 lexer_flags.quote_is_transpose = false; |
811 lexer_flags.convert_spaces_to_comma = true; | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
812 |
1826 | 813 if (nesting_level.none ()) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
814 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
815 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
816 COUNT_TOK_AND_RETURN ('\n'); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
817 } |
4037 | 818 else if (nesting_level.is_paren ()) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
819 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
820 lexer_flags.at_beginning_of_statement = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
821 gripe_matlab_incompatible ("bare newline inside parentheses"); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
822 } |
4608 | 823 else if (nesting_level.is_bracket_or_brace ()) |
985 | 824 return LEXICAL_ERROR; |
967 | 825 } |
1 | 826 |
968 | 827 %{ |
828 // 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
|
829 // operator. |
968 | 830 %} |
831 | |
967 | 832 "'" { |
8535 | 833 LEXER_DEBUG ("'"); |
834 | |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
835 lexer_flags.current_input_column++; |
2857 | 836 lexer_flags.convert_spaces_to_comma = true; |
1 | 837 |
1826 | 838 if (lexer_flags.quote_is_transpose) |
967 | 839 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
840 do_comma_insert_check (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
841 COUNT_TOK_AND_RETURN (QUOTE); |
967 | 842 } |
843 else | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
844 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
845 int tok = handle_string ('\''); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
846 COUNT_TOK_AND_RETURN (tok); |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
847 } |
967 | 848 } |
1 | 849 |
968 | 850 %{ |
971 | 851 // Double quotes always begin strings. |
852 %} | |
853 | |
973 | 854 \" { |
14642
6edd02858516
lex.ll: fix think-o in previous change
John W. Eaton <jwe@octave.org>
parents:
14638
diff
changeset
|
855 LEXER_DEBUG ("\""); |
8535 | 856 |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
857 lexer_flags.current_input_column++; |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
858 int tok = handle_string ('"'); |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
859 |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
860 COUNT_TOK_AND_RETURN (tok); |
973 | 861 } |
971 | 862 |
863 %{ | |
8536
de1b944d5306
lex.l: finish previous change
John W. Eaton <jwe@octave.org>
parents:
8535
diff
changeset
|
864 // Gobble comments. |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
865 %} |
968 | 866 |
967 | 867 {CCHAR} { |
8535 | 868 LEXER_DEBUG ("{CCHAR}"); |
869 | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
870 lexer_flags.looking_for_object_index = false; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
871 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
872 xunput (yytext[0], yytext); |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
873 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
874 bool eof = false; |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
875 int tok = process_comment (false, eof); |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
876 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
877 if (eof) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
878 TOK_RETURN (END_OF_INPUT); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
879 else if (tok > 0) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
880 COUNT_TOK_AND_RETURN (tok); |
967 | 881 } |
440 | 882 |
968 | 883 %{ |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
884 // Block comments. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
885 %} |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
886 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
887 ^{S}*{CCHAR}\{{S}*{NL} { |
8535 | 888 LEXER_DEBUG ("^{S}*{CCHAR}\\{{S}*{NL}"); |
889 | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
890 lexer_flags.looking_for_object_index = false; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
891 |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
892 lexer_flags.input_line_number++; |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
893 lexer_flags.current_input_column = 1; |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
894 block_comment_nesting_level++; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
895 promptflag--; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
896 |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
897 bool eof = false; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
898 process_comment (true, eof); |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
899 } |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
900 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
901 %{ |
968 | 902 // Other operators. |
903 %} | |
904 | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
905 ":" { LEXER_DEBUG (":"); BIN_OP_RETURN (':', false, false); } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
906 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
907 ".+" { LEXER_DEBUG (".+"); XBIN_OP_RETURN (EPLUS, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
908 ".-" { LEXER_DEBUG (".-"); XBIN_OP_RETURN (EMINUS, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
909 ".*" { LEXER_DEBUG (".*"); BIN_OP_RETURN (EMUL, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
910 "./" { LEXER_DEBUG ("./"); BIN_OP_RETURN (EDIV, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
911 ".\\" { LEXER_DEBUG (".\\"); BIN_OP_RETURN (ELEFTDIV, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
912 ".^" { LEXER_DEBUG (".^"); BIN_OP_RETURN (EPOW, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
913 ".**" { LEXER_DEBUG (".**"); XBIN_OP_RETURN (EPOW, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
914 ".'" { LEXER_DEBUG (".'"); do_comma_insert_check (); BIN_OP_RETURN (TRANSPOSE, true, false); } |
12627
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
915 "++" { LEXER_DEBUG ("++"); do_comma_insert_check (); XBIN_OP_RETURN_INTERNAL (PLUS_PLUS, true, false, true); } |
002948ae5bc0
fix precedence level of transpose operators (bug #32533)
John W. Eaton <jwe@octave.org>
parents:
12174
diff
changeset
|
916 "--" { LEXER_DEBUG ("--"); do_comma_insert_check (); XBIN_OP_RETURN_INTERNAL (MINUS_MINUS, true, false, true); } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
917 "<=" { LEXER_DEBUG ("<="); BIN_OP_RETURN (EXPR_LE, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
918 "==" { LEXER_DEBUG ("=="); BIN_OP_RETURN (EXPR_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
919 "~=" { LEXER_DEBUG ("~="); BIN_OP_RETURN (EXPR_NE, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
920 "!=" { LEXER_DEBUG ("!="); XBIN_OP_RETURN (EXPR_NE, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
921 ">=" { LEXER_DEBUG (">="); BIN_OP_RETURN (EXPR_GE, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
922 "&" { LEXER_DEBUG ("&"); BIN_OP_RETURN (EXPR_AND, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
923 "|" { LEXER_DEBUG ("|"); BIN_OP_RETURN (EXPR_OR, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
924 "<" { LEXER_DEBUG ("<"); BIN_OP_RETURN (EXPR_LT, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
925 ">" { LEXER_DEBUG (">"); BIN_OP_RETURN (EXPR_GT, false, false); } |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
926 "+" { LEXER_DEBUG ("+"); BIN_OP_RETURN ('+', false, false); } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
927 "-" { LEXER_DEBUG ("-"); BIN_OP_RETURN ('-', false, false); } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
928 "*" { LEXER_DEBUG ("*"); BIN_OP_RETURN ('*', false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
929 "/" { LEXER_DEBUG ("/"); BIN_OP_RETURN ('/', false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
930 "\\" { LEXER_DEBUG ("\\"); BIN_OP_RETURN (LEFTDIV, false, false); } |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
931 ";" { LEXER_DEBUG (";"); BIN_OP_RETURN (';', true, true); } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
932 "," { LEXER_DEBUG (","); BIN_OP_RETURN (',', true, ! lexer_flags.looking_at_object_index.front ()); } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
933 "^" { LEXER_DEBUG ("^"); BIN_OP_RETURN (POW, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
934 "**" { LEXER_DEBUG ("**"); XBIN_OP_RETURN (POW, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
935 "=" { LEXER_DEBUG ("="); BIN_OP_RETURN ('=', true, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
936 "&&" { LEXER_DEBUG ("&&"); BIN_OP_RETURN (EXPR_AND_AND, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
937 "||" { LEXER_DEBUG ("||"); BIN_OP_RETURN (EXPR_OR_OR, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
938 "<<" { LEXER_DEBUG ("<<"); XBIN_OP_RETURN (LSHIFT, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
939 ">>" { LEXER_DEBUG (">>"); XBIN_OP_RETURN (RSHIFT, false, false); } |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
940 |
967 | 941 {NOT} { |
8535 | 942 LEXER_DEBUG ("{NOT}"); |
943 | |
4037 | 944 if (yytext[0] == '~') |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
945 BIN_OP_RETURN (EXPR_NOT, false, false); |
4037 | 946 else |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
947 XBIN_OP_RETURN (EXPR_NOT, false, false); |
967 | 948 } |
1 | 949 |
967 | 950 "(" { |
8535 | 951 LEXER_DEBUG ("("); |
952 | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
953 // If we are looking for an object index, then push TRUE for |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
954 // looking_at_object_index. Otherwise, just push whatever state |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
955 // is current (so that we can pop it off the stack when we find |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
956 // the matching close paren). |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
957 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
958 lexer_flags.looking_at_object_index.push_front |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
959 (lexer_flags.looking_for_object_index); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
960 |
4131 | 961 lexer_flags.looking_at_indirect_ref = false; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
962 lexer_flags.looking_for_object_index = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
963 lexer_flags.at_beginning_of_statement = false; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
964 |
1826 | 965 nesting_level.paren (); |
985 | 966 promptflag--; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
967 |
967 | 968 TOK_RETURN ('('); |
969 } | |
970 | |
971 ")" { | |
8535 | 972 LEXER_DEBUG (")"); |
973 | |
1826 | 974 nesting_level.remove (); |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
975 lexer_flags.current_input_column++; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
976 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
977 lexer_flags.looking_at_object_index.pop_front (); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
978 |
2857 | 979 lexer_flags.quote_is_transpose = true; |
13237
1bfca2bbea8b
fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents:
12801
diff
changeset
|
980 lexer_flags.convert_spaces_to_comma |
1bfca2bbea8b
fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents:
12801
diff
changeset
|
981 = (nesting_level.is_bracket_or_brace () |
1bfca2bbea8b
fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents:
12801
diff
changeset
|
982 && ! lexer_flags.looking_at_anon_fcn_args); |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
983 lexer_flags.looking_for_object_index = true; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
984 lexer_flags.at_beginning_of_statement = false; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
985 |
13237
1bfca2bbea8b
fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents:
12801
diff
changeset
|
986 if (lexer_flags.looking_at_anon_fcn_args) |
1bfca2bbea8b
fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents:
12801
diff
changeset
|
987 lexer_flags.looking_at_anon_fcn_args = false; |
1bfca2bbea8b
fix parsing of anonymous functions inside cell array lists.
John W. Eaton <jwe@octave.org>
parents:
12801
diff
changeset
|
988 |
1001 | 989 do_comma_insert_check (); |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
990 |
4910 | 991 COUNT_TOK_AND_RETURN (')'); |
967 | 992 } |
993 | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
994 "." { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
995 LEXER_DEBUG ("."); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
996 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
997 lexer_flags.looking_for_object_index = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
998 lexer_flags.at_beginning_of_statement = false; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
999 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1000 TOK_RETURN ('.'); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1001 } |
8535 | 1002 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1003 "+=" { LEXER_DEBUG ("+="); XBIN_OP_RETURN (ADD_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1004 "-=" { LEXER_DEBUG ("-="); XBIN_OP_RETURN (SUB_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1005 "*=" { LEXER_DEBUG ("*="); XBIN_OP_RETURN (MUL_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1006 "/=" { LEXER_DEBUG ("/="); XBIN_OP_RETURN (DIV_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1007 "\\=" { LEXER_DEBUG ("\\="); XBIN_OP_RETURN (LEFTDIV_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1008 ".+=" { LEXER_DEBUG (".+="); XBIN_OP_RETURN (ADD_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1009 ".-=" { LEXER_DEBUG (".-="); XBIN_OP_RETURN (SUB_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1010 ".*=" { LEXER_DEBUG (".*="); XBIN_OP_RETURN (EMUL_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1011 "./=" { LEXER_DEBUG ("./="); XBIN_OP_RETURN (EDIV_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1012 ".\\=" { LEXER_DEBUG (".\\="); XBIN_OP_RETURN (ELEFTDIV_EQ, false, false); } |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
1013 {POW}= { LEXER_DEBUG ("{POW}="); XBIN_OP_RETURN (POW_EQ, false, false); } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
1014 {EPOW}= { LEXER_DEBUG ("{EPOW}="); XBIN_OP_RETURN (EPOW_EQ, false, false); } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1015 "&=" { LEXER_DEBUG ("&="); XBIN_OP_RETURN (AND_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1016 "|=" { LEXER_DEBUG ("|="); XBIN_OP_RETURN (OR_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1017 "<<=" { LEXER_DEBUG ("<<="); XBIN_OP_RETURN (LSHIFT_EQ, false, false); } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1018 ">>=" { LEXER_DEBUG (">>="); XBIN_OP_RETURN (RSHIFT_EQ, false, false); } |
2877 | 1019 |
4608 | 1020 \{{S}* { |
8535 | 1021 LEXER_DEBUG ("\\{{S}*"); |
1022 | |
3351 | 1023 nesting_level.brace (); |
4608 | 1024 |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1025 lexer_flags.looking_at_object_index.push_front |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1026 (lexer_flags.looking_for_object_index); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1027 |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1028 lexer_flags.current_input_column += yyleng; |
4608 | 1029 lexer_flags.quote_is_transpose = false; |
1030 lexer_flags.convert_spaces_to_comma = true; | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1031 lexer_flags.looking_for_object_index = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
1032 lexer_flags.at_beginning_of_statement = false; |
4608 | 1033 |
3351 | 1034 promptflag--; |
4608 | 1035 eat_whitespace (); |
1036 | |
4613 | 1037 lexer_flags.braceflag++; |
4608 | 1038 BEGIN (MATRIX_START); |
4910 | 1039 COUNT_TOK_AND_RETURN ('{'); |
3351 | 1040 } |
1041 | |
1042 "}" { | |
8535 | 1043 LEXER_DEBUG ("}"); |
1044 | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1045 lexer_flags.looking_at_object_index.pop_front (); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1046 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1047 lexer_flags.looking_for_object_index = true; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
1048 lexer_flags.at_beginning_of_statement = false; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1049 |
3351 | 1050 nesting_level.remove (); |
1051 | |
4608 | 1052 TOK_RETURN ('}'); |
3351 | 1053 } |
1054 | |
968 | 1055 %{ |
2066 | 1056 // Unrecognized input is a lexical error. |
968 | 1057 %} |
1 | 1058 |
2042 | 1059 . { |
8535 | 1060 LEXER_DEBUG ("."); |
1061 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1062 xunput (yytext[0], yytext); |
4248 | 1063 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
1064 int c = text_yyinput (); |
4248 | 1065 |
1066 if (c != EOF) | |
4240 | 1067 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1068 lexer_flags.current_input_column++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1069 |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
1070 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
|
1071 undo_string_escape (static_cast<char> (c)), c, |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1072 lexer_flags.input_line_number, lexer_flags.current_input_column); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1073 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1074 return LEXICAL_ERROR; |
4240 | 1075 } |
1076 else | |
1077 TOK_RETURN (END_OF_INPUT); | |
2066 | 1078 } |
1 | 1079 |
1080 %% | |
1081 | |
767 | 1082 // GAG. |
1083 // | |
1084 // If we're reading a matrix and the next character is '[', make sure | |
1085 // that we insert a comma ahead of it. | |
1086 | |
146 | 1087 void |
1 | 1088 do_comma_insert_check (void) |
1089 { | |
1001 | 1090 int spc_gobbled = eat_continuation (); |
2970 | 1091 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
1092 int c = text_yyinput (); |
2970 | 1093 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1094 xunput (c, yytext); |
2970 | 1095 |
1001 | 1096 if (spc_gobbled) |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1097 xunput (' ', yytext); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1098 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1099 lexer_flags.do_comma_insert = (! lexer_flags.looking_at_object_index.front () |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1100 && lexer_flags.bracketflag && c == '['); |
1 | 1101 } |
1102 | |
767 | 1103 // Fix things up for errors or interrupts. The parser is never called |
1104 // recursively, so it is always safe to reinitialize its state before | |
1105 // doing any parsing. | |
1106 | |
1 | 1107 void |
1108 reset_parser (void) | |
1109 { | |
1826 | 1110 // Start off on the right foot. |
4323 | 1111 BEGIN (INITIAL); |
4318 | 1112 |
14329
8d1ae996c122
also save and restore symbol table context in parser (bug #35448)
John W. Eaton <jwe@octave.org>
parents:
14294
diff
changeset
|
1113 parser_symtab_context.clear (); |
287 | 1114 |
1826 | 1115 // We do want a prompt by default. |
1 | 1116 promptflag = 1; |
287 | 1117 |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1118 // We are not in a block comment. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1119 block_comment_nesting_level = 0; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1120 |
3351 | 1121 // Error may have occurred inside some brackets, braces, or parentheses. |
985 | 1122 nesting_level.clear (); |
287 | 1123 |
1826 | 1124 // Clear out the stack of token info used to track line and column |
1125 // numbers. | |
143 | 1126 while (! token_stack.empty ()) |
4214 | 1127 { |
1128 delete token_stack.top (); | |
1129 token_stack.pop (); | |
1130 } | |
287 | 1131 |
1826 | 1132 // Only ask for input from stdin if we are expecting interactive |
1133 // input. | |
14074
f90c3facfac3
don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents:
13973
diff
changeset
|
1134 |
f90c3facfac3
don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents:
13973
diff
changeset
|
1135 if (! quitting_gracefully |
f90c3facfac3
don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents:
13973
diff
changeset
|
1136 && (interactive || forced_interactive) |
3880 | 1137 && ! (reading_fcn_file |
14074
f90c3facfac3
don't reset parser when exiting (bug #35120)
John W. Eaton <jwe@octave.org>
parents:
13973
diff
changeset
|
1138 || reading_classdef_file |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1139 || reading_script_file |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1140 || get_input_from_eval_string |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1141 || input_from_startup_file)) |
287 | 1142 yyrestart (stdin); |
991 | 1143 |
1826 | 1144 // Clear the buffer for help text. |
4426 | 1145 while (! help_buf.empty ()) |
1146 help_buf.pop (); | |
1755 | 1147 |
1826 | 1148 // Reset other flags. |
16101
8d19626b38ae
provide copy contructor and operator = for lexical_feedback class.
John W. Eaton <jwe@octave.org>
parents:
16100
diff
changeset
|
1149 lexer_flags = lexical_feedback (); |
1 | 1150 } |
1151 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1152 static void |
8535 | 1153 display_character (char c) |
1154 { | |
1155 if (isgraph (c)) | |
1156 std::cerr << c; | |
1157 else | |
1158 switch (c) | |
1159 { | |
1160 case 0: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1161 std::cerr << "NUL"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1162 break; |
8535 | 1163 |
1164 case 1: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1165 std::cerr << "SOH"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1166 break; |
8535 | 1167 |
1168 case 2: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1169 std::cerr << "STX"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1170 break; |
8535 | 1171 |
1172 case 3: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1173 std::cerr << "ETX"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1174 break; |
8535 | 1175 |
1176 case 4: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1177 std::cerr << "EOT"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1178 break; |
8535 | 1179 |
1180 case 5: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1181 std::cerr << "ENQ"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1182 break; |
8535 | 1183 |
1184 case 6: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1185 std::cerr << "ACK"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1186 break; |
8535 | 1187 |
1188 case 7: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1189 std::cerr << "\\a"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1190 break; |
8535 | 1191 |
1192 case 8: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1193 std::cerr << "\\b"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1194 break; |
8535 | 1195 |
1196 case 9: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1197 std::cerr << "\\t"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1198 break; |
8535 | 1199 |
1200 case 10: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1201 std::cerr << "\\n"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1202 break; |
8535 | 1203 |
1204 case 11: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1205 std::cerr << "\\v"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1206 break; |
8535 | 1207 |
1208 case 12: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1209 std::cerr << "\\f"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1210 break; |
8535 | 1211 |
1212 case 13: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1213 std::cerr << "\\r"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1214 break; |
8535 | 1215 |
1216 case 14: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1217 std::cerr << "SO"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1218 break; |
8535 | 1219 |
1220 case 15: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1221 std::cerr << "SI"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1222 break; |
8535 | 1223 |
1224 case 16: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1225 std::cerr << "DLE"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1226 break; |
8535 | 1227 |
1228 case 17: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1229 std::cerr << "DC1"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1230 break; |
8535 | 1231 |
1232 case 18: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1233 std::cerr << "DC2"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1234 break; |
8535 | 1235 |
1236 case 19: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1237 std::cerr << "DC3"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1238 break; |
8535 | 1239 |
1240 case 20: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1241 std::cerr << "DC4"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1242 break; |
8535 | 1243 |
1244 case 21: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1245 std::cerr << "NAK"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1246 break; |
8535 | 1247 |
1248 case 22: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1249 std::cerr << "SYN"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1250 break; |
8535 | 1251 |
1252 case 23: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1253 std::cerr << "ETB"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1254 break; |
8535 | 1255 |
1256 case 24: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1257 std::cerr << "CAN"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1258 break; |
8535 | 1259 |
1260 case 25: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1261 std::cerr << "EM"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1262 break; |
8535 | 1263 |
1264 case 26: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1265 std::cerr << "SUB"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1266 break; |
8535 | 1267 |
1268 case 27: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1269 std::cerr << "ESC"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1270 break; |
8535 | 1271 |
1272 case 28: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1273 std::cerr << "FS"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1274 break; |
8535 | 1275 |
1276 case 29: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1277 std::cerr << "GS"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1278 break; |
8535 | 1279 |
1280 case 30: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1281 std::cerr << "RS"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1282 break; |
8535 | 1283 |
1284 case 31: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1285 std::cerr << "US"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1286 break; |
8535 | 1287 |
1288 case 32: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1289 std::cerr << "SPACE"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1290 break; |
8535 | 1291 |
1292 case 127: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1293 std::cerr << "DEL"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1294 break; |
8535 | 1295 } |
1296 } | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1297 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1298 static int |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1299 text_yyinput (void) |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1300 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1301 int c = yyinput (); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1302 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1303 if (lexer_debug_flag) |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1304 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1305 std::cerr << "I: "; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1306 display_character (c); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1307 std::cerr << std::endl; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1308 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1309 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1310 // Convert CRLF into just LF and single CR into LF. |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1311 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1312 if (c == '\r') |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1313 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1314 c = yyinput (); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1315 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1316 if (lexer_debug_flag) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1317 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1318 std::cerr << "I: "; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1319 display_character (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1320 std::cerr << std::endl; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1321 } |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1322 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1323 if (c != '\n') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1324 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1325 xunput (c, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1326 c = '\n'; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1327 } |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1328 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1329 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1330 if (c == '\n') |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1331 lexer_flags.input_line_number++; |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1332 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1333 return c; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1334 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1335 |
8535 | 1336 static void |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1337 xunput (char c, char *buf) |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1338 { |
8535 | 1339 if (lexer_debug_flag) |
1340 { | |
1341 std::cerr << "U: "; | |
1342 display_character (c); | |
1343 std::cerr << std::endl; | |
1344 } | |
1345 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1346 if (c == '\n') |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1347 lexer_flags.input_line_number--; |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1348 |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1349 yyunput (c, buf); |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1350 } |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1351 |
767 | 1352 // If we read some newlines, we need figure out what column we're |
1353 // really looking at. | |
1354 | |
1 | 1355 static void |
1356 fixup_column_count (char *s) | |
1357 { | |
1358 char c; | |
1359 while ((c = *s++) != '\0') | |
1360 { | |
1361 if (c == '\n') | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1362 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1363 lexer_flags.input_line_number++; |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1364 lexer_flags.current_input_column = 1; |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1365 } |
1 | 1366 else |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1367 lexer_flags.current_input_column++; |
1 | 1368 } |
1369 } | |
1370 | |
767 | 1371 // Include these so that we don't have to link to libfl.a. |
246 | 1372 |
3332 | 1373 int |
1 | 1374 yywrap (void) |
1375 { | |
287 | 1376 return 1; |
1 | 1377 } |
1378 | |
767 | 1379 // Tell us all what the current buffer is. |
1380 | |
1 | 1381 YY_BUFFER_STATE |
1382 current_buffer (void) | |
1383 { | |
1384 return YY_CURRENT_BUFFER; | |
1385 } | |
1386 | |
767 | 1387 // Create a new buffer. |
1388 | |
1 | 1389 YY_BUFFER_STATE |
1390 create_buffer (FILE *f) | |
1391 { | |
1392 return yy_create_buffer (f, YY_BUF_SIZE); | |
1393 } | |
1394 | |
767 | 1395 // Start reading a new buffer. |
1396 | |
1 | 1397 void |
1398 switch_to_buffer (YY_BUFFER_STATE buf) | |
1399 { | |
1400 yy_switch_to_buffer (buf); | |
1401 } | |
1402 | |
767 | 1403 // Delete a buffer. |
1404 | |
1 | 1405 void |
1406 delete_buffer (YY_BUFFER_STATE buf) | |
1407 { | |
1408 yy_delete_buffer (buf); | |
14510
c20de00a66a9
avoid memory error in 'octave --eval 0' (bug #36038)
Max Brister <max@2bass.com>
parents:
14329
diff
changeset
|
1409 |
c20de00a66a9
avoid memory error in 'octave --eval 0' (bug #36038)
Max Brister <max@2bass.com>
parents:
14329
diff
changeset
|
1410 // Prevent invalid yyin from being used by yyrestart. |
c20de00a66a9
avoid memory error in 'octave --eval 0' (bug #36038)
Max Brister <max@2bass.com>
parents:
14329
diff
changeset
|
1411 if (! current_buffer ()) |
c20de00a66a9
avoid memory error in 'octave --eval 0' (bug #36038)
Max Brister <max@2bass.com>
parents:
14329
diff
changeset
|
1412 yyin = 0; |
1 | 1413 } |
1414 | |
13973
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1415 // Delete all buffers from the stack. |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1416 void |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1417 clear_all_buffers (void) |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1418 { |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1419 while (current_buffer ()) |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1420 octave_pop_buffer_state (); |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1421 } |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1422 |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1423 void |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1424 cleanup_parser (void) |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1425 { |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1426 reset_parser (); |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1427 |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1428 clear_all_buffers (); |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1429 } |
2c664266e9d0
clean up parser memory on exit
John W. Eaton <jwe@octave.org>
parents:
13260
diff
changeset
|
1430 |
767 | 1431 // Restore a buffer (for unwind-prot). |
1432 | |
1 | 1433 void |
1434 restore_input_buffer (void *buf) | |
1435 { | |
2861 | 1436 switch_to_buffer (static_cast<YY_BUFFER_STATE> (buf)); |
1 | 1437 } |
1438 | |
767 | 1439 // Delete a buffer (for unwind-prot). |
1440 | |
1 | 1441 void |
1442 delete_input_buffer (void *buf) | |
1443 { | |
2861 | 1444 delete_buffer (static_cast<YY_BUFFER_STATE> (buf)); |
1 | 1445 } |
1446 | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1447 static bool |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1448 inside_any_object_index (void) |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1449 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1450 bool retval = false; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1451 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1452 for (std::list<bool>::const_iterator i = lexer_flags.looking_at_object_index.begin (); |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1453 i != lexer_flags.looking_at_object_index.end (); i++) |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1454 { |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1455 if (*i) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1456 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1457 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1458 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1459 } |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1460 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1461 |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1462 return retval; |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1463 } |
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
1464 |
4238 | 1465 // Handle keywords. Return -1 if the keyword should be ignored. |
767 | 1466 |
1 | 1467 static int |
4867 | 1468 is_keyword_token (const std::string& s) |
1 | 1469 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1470 int l = lexer_flags.input_line_number; |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1471 int c = lexer_flags.current_input_column; |
3805 | 1472 |
1823 | 1473 int len = s.length (); |
922 | 1474 |
5088 | 1475 const octave_kw *kw = octave_kw_hash::in_word_set (s.c_str (), len); |
191 | 1476 |
1497 | 1477 if (kw) |
143 | 1478 { |
1497 | 1479 yylval.tok_val = 0; |
1480 | |
1481 switch (kw->kw_id) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1482 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1483 case break_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1484 case catch_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1485 case continue_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1486 case else_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1487 case otherwise_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1488 case return_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1489 case unwind_protect_cleanup_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1490 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1491 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1492 |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1493 case static_kw: |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1494 if ((reading_fcn_file || reading_script_file |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1495 || reading_classdef_file) |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1496 && ! curr_fcn_file_full_name.empty ()) |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1497 warning_with_id ("Octave:deprecated-keyword", |
15468
6437fa7263dd
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
15467
diff
changeset
|
1498 "the 'static' keyword is obsolete and will be removed from a future version of Octave; please use 'persistent' instead; near line %d of file '%s'", |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1499 lexer_flags.input_line_number, |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1500 curr_fcn_file_full_name.c_str ()); |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1501 else |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1502 warning_with_id ("Octave:deprecated-keyword", |
15468
6437fa7263dd
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
15467
diff
changeset
|
1503 "the 'static' keyword is obsolete and will be removed from a future version of Octave; please use 'persistent' instead; near line %d", |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1504 lexer_flags.input_line_number); |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1505 // fall through ... |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1506 |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1507 case persistent_kw: |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1508 break; |
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
1509 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1510 case case_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1511 case elseif_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1512 case global_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1513 case until_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1514 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1515 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1516 case end_kw: |
14645
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
1517 if (inside_any_object_index () |
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
1518 || (! reading_classdef_file |
cbc00b587f36
also allow "end" indexing in classdef files
John W. Eaton <jwe@octave.org>
parents:
14642
diff
changeset
|
1519 && (lexer_flags.defining_func |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1520 && ! (lexer_flags.looking_at_return_list |
14647
7c463e490062
* lex.ll: fix paren mismatch problem in previous change.
John W. Eaton <jwe@octave.org>
parents:
14645
diff
changeset
|
1521 || lexer_flags.parsed_function_name.top ())))) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1522 return 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1523 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1524 yylval.tok_val = new token (token::simple_end, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1525 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1526 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1527 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1528 case end_try_catch_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1529 yylval.tok_val = new token (token::try_catch_end, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1530 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1531 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1532 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1533 case end_unwind_protect_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1534 yylval.tok_val = new token (token::unwind_protect_end, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1535 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1536 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1537 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1538 case endfor_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1539 yylval.tok_val = new token (token::for_end, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1540 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1541 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1542 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1543 case endfunction_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1544 yylval.tok_val = new token (token::function_end, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1545 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1546 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1547 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1548 case endif_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1549 yylval.tok_val = new token (token::if_end, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1550 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1551 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1552 |
13246 | 1553 case endparfor_kw: |
1554 yylval.tok_val = new token (token::parfor_end, l, c); | |
1555 lexer_flags.at_beginning_of_statement = true; | |
1556 break; | |
1557 | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1558 case endswitch_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1559 yylval.tok_val = new token (token::switch_end, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1560 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1561 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1562 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1563 case endwhile_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1564 yylval.tok_val = new token (token::while_end, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1565 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1566 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1567 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1568 case endclassdef_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1569 yylval.tok_val = new token (token::classdef_end, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1570 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1571 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1572 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1573 case endenumeration_kw: |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1574 yylval.tok_val = new token (token::enumeration_end, l, c); |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1575 lexer_flags.at_beginning_of_statement = true; |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1576 break; |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1577 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1578 case endevents_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1579 yylval.tok_val = new token (token::events_end, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1580 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1581 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1582 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1583 case endmethods_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1584 yylval.tok_val = new token (token::methods_end, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1585 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1586 break; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1587 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1588 case endproperties_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1589 yylval.tok_val = new token (token::properties_end, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1590 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1591 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1592 |
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
|
1593 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1594 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
|
1595 case parfor_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1596 case while_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1597 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1598 lexer_flags.looping++; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1599 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1600 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1601 case do_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1602 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1603 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1604 lexer_flags.looping++; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1605 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1606 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1607 case try_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1608 case unwind_protect_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1609 lexer_flags.at_beginning_of_statement = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1610 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1611 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1612 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1613 case if_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1614 case switch_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1615 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1616 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1617 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1618 case get_kw: |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1619 case set_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1620 // 'get' and 'set' are keywords in classdef method |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1621 // declarations. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1622 if (! lexer_flags.maybe_classdef_get_set_method) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1623 return 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1624 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1625 |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1626 case enumeration_kw: |
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1627 case events_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1628 case methods_kw: |
13249
7861a5fd3479
accept enumeration keyword
John W. Eaton <jwe@octave.org>
parents:
13246
diff
changeset
|
1629 case properties_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1630 // 'properties', 'methods' and 'events' are keywords for |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1631 // classdef blocks. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1632 if (! lexer_flags.parsing_classdef) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1633 return 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1634 // fall through ... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1635 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1636 case classdef_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1637 // 'classdef' is always a keyword. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1638 promptflag--; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1639 break; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1640 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1641 case function_kw: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1642 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1643 |
11367
b2191ebea12f
don't process input_event_hook when we are parsing a function
John W. Eaton <jwe@octave.org>
parents:
11217
diff
changeset
|
1644 lexer_flags.defining_func++; |
11464
21b5284fa78d
avoid error when parsing nested functions
John W. Eaton <jwe@octave.org>
parents:
11431
diff
changeset
|
1645 lexer_flags.parsed_function_name.push (false); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1646 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1647 if (! (reading_fcn_file || reading_script_file |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1648 || reading_classdef_file)) |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1649 lexer_flags.input_line_number = 1; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1650 break; |
1497 | 1651 |
3174 | 1652 case magic_file_kw: |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1653 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1654 if ((reading_fcn_file || reading_script_file |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1655 || reading_classdef_file) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1656 && ! curr_fcn_file_full_name.empty ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1657 yylval.tok_val = new token (curr_fcn_file_full_name, l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1658 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1659 yylval.tok_val = new token ("stdin", l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1660 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1661 break; |
3174 | 1662 |
1663 case magic_line_kw: | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1664 yylval.tok_val = new token (static_cast<double> (l), "", l, c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1665 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1666 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1667 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1668 panic_impossible (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1669 } |
1497 | 1670 |
1671 if (! yylval.tok_val) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1672 yylval.tok_val = new token (l, c); |
1497 | 1673 |
476 | 1674 token_stack.push (yylval.tok_val); |
1497 | 1675 |
1676 return kw->tok; | |
143 | 1677 } |
1 | 1678 |
1679 return 0; | |
1680 } | |
1681 | |
2702 | 1682 static bool |
3523 | 1683 is_variable (const std::string& name) |
2702 | 1684 { |
8001
ff9e7873f8ea
improve handling of command-style names in matrix_or_assign_lhs context
John W. Eaton <jwe@octave.org>
parents:
7898
diff
changeset
|
1685 return (symbol_table::is_variable (name) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1686 || (lexer_flags.pending_local_variables.find (name) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1687 != lexer_flags.pending_local_variables.end ())); |
2702 | 1688 } |
1689 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1690 static std::string |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1691 grab_block_comment (stream_reader& reader, bool& eof) |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1692 { |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1693 std::string buf; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1694 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1695 bool at_bol = true; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1696 bool look_for_marker = false; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1697 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1698 bool warned_incompatible = false; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1699 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1700 int c = 0; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1701 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1702 while ((c = reader.getc ()) != EOF) |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1703 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1704 lexer_flags.current_input_column++; |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1705 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1706 if (look_for_marker) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1707 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1708 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1709 look_for_marker = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1710 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1711 if (c == '{' || c == '}') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1712 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1713 std::string tmp_buf (1, static_cast<char> (c)); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1714 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1715 int type = c; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1716 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1717 bool done = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1718 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1719 while ((c = reader.getc ()) != EOF && ! done) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1720 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1721 lexer_flags.current_input_column++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1722 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1723 switch (c) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1724 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1725 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1726 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1727 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1728 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1729 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1730 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1731 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1732 lexer_flags.current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1733 at_bol = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1734 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1735 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1736 if (type == '{') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1737 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1738 block_comment_nesting_level++; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1739 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1740 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1741 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1742 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1743 block_comment_nesting_level--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1744 promptflag++; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1745 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1746 if (block_comment_nesting_level == 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1747 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1748 buf += grab_comment_block (reader, true, eof); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1749 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1750 return buf; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1751 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1752 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1753 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1754 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1755 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1756 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1757 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1758 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1759 buf += tmp_buf; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1760 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1761 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1762 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1763 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1764 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1765 } |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1766 |
7898
cce16b4e0970
lex.l (grab_block_comment): Use parens around || expression within && expression
John W. Eaton <jwe@octave.org>
parents:
7728
diff
changeset
|
1767 if (at_bol && (c == '%' || c == '#')) |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1768 { |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1769 if (c == '#' && ! warned_incompatible) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1770 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1771 warned_incompatible = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1772 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1773 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1774 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1775 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1776 look_for_marker = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1777 } |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1778 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1779 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1780 buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1781 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1782 if (c == '\n') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1783 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1784 lexer_flags.current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1785 at_bol = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1786 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1787 } |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1788 } |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1789 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1790 if (c == EOF) |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1791 eof = true; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1792 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1793 return buf; |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1794 } |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1795 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1796 std::string |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1797 grab_comment_block (stream_reader& reader, bool at_bol, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1798 bool& eof) |
1 | 1799 { |
4426 | 1800 std::string buf; |
1019 | 1801 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1802 // TRUE means we are at the beginning of a comment block. |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1803 bool begin_comment = false; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1804 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1805 // TRUE means we are currently reading a comment block. |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1806 bool in_comment = false; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1807 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1808 bool warned_incompatible = false; |
3665 | 1809 |
1019 | 1810 int c = 0; |
1 | 1811 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1812 while ((c = reader.getc ()) != EOF) |
1019 | 1813 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1814 lexer_flags.current_input_column++; |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1815 |
2300 | 1816 if (begin_comment) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1817 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1818 if (c == '%' || c == '#') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1819 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1820 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1821 continue; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1822 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1823 else if (at_bol && c == '{') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1824 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1825 std::string tmp_buf (1, static_cast<char> (c)); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1826 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1827 bool done = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1828 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1829 while ((c = reader.getc ()) != EOF && ! done) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1830 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1831 lexer_flags.current_input_column++; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1832 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1833 switch (c) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1834 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1835 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1836 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1837 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1838 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1839 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1840 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1841 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1842 lexer_flags.current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1843 at_bol = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1844 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1845 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1846 block_comment_nesting_level++; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1847 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1848 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1849 buf += grab_block_comment (reader, eof); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1850 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1851 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1852 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1853 if (eof) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1854 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1855 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1856 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1857 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1858 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1859 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1860 tmp_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1861 buf += tmp_buf; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1862 done = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1863 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1864 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1865 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1866 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1867 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1868 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1869 at_bol = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1870 begin_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1871 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1872 } |
2300 | 1873 |
1019 | 1874 if (in_comment) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1875 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1876 buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1877 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1878 if (c == '\n') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1879 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1880 at_bol = true; |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1881 lexer_flags.current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1882 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1883 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1884 // FIXME -- bailing out here prevents things like |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1885 // |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1886 // octave> # comment |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1887 // octave> x = 1 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1888 // |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1889 // from failing at the command line, while still |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1890 // allowing blocks of comments to be grabbed properly |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1891 // for function doc strings. But only the first line of |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1892 // a mult-line doc string will be picked up for |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1893 // functions defined on the command line. We need a |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1894 // better way of collecting these comments... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1895 if (! (reading_fcn_file || reading_script_file)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1896 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1897 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1898 } |
1019 | 1899 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1900 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1901 switch (c) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1902 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1903 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1904 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1905 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1906 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1907 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1908 if (! warned_incompatible) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1909 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1910 warned_incompatible = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1911 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1912 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1913 // fall through... |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1914 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1915 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1916 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1917 begin_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1918 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1919 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1920 default: |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1921 lexer_flags.current_input_column--; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1922 reader.ungetc (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1923 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1924 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1925 } |
1019 | 1926 } |
991 | 1927 |
1019 | 1928 done: |
991 | 1929 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1930 if (c == EOF) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1931 eof = true; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1932 |
4426 | 1933 return buf; |
1 | 1934 } |
1935 | |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1936 class |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1937 flex_stream_reader : public stream_reader |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1938 { |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1939 public: |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1940 flex_stream_reader (char *buf_arg) : stream_reader (), buf (buf_arg) { } |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1941 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
1942 int getc (void) { return ::text_yyinput (); } |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
1943 int ungetc (int c) { ::xunput (c, buf); return 0; } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1944 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1945 private: |
12122
f4689107dd8c
Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents:
11586
diff
changeset
|
1946 |
f4689107dd8c
Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents:
11586
diff
changeset
|
1947 // No copying! |
f4689107dd8c
Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents:
11586
diff
changeset
|
1948 |
f4689107dd8c
Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents:
11586
diff
changeset
|
1949 flex_stream_reader (const flex_stream_reader&); |
f4689107dd8c
Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents:
11586
diff
changeset
|
1950 |
12174 | 1951 flex_stream_reader& operator = (const flex_stream_reader&); |
12122
f4689107dd8c
Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents:
11586
diff
changeset
|
1952 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1953 char *buf; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1954 }; |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1955 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1956 static int |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1957 process_comment (bool start_in_block, bool& eof) |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1958 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1959 eof = false; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1960 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1961 std::string help_txt; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1962 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1963 if (! help_buf.empty ()) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1964 help_txt = help_buf.top (); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1965 |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1966 flex_stream_reader flex_reader (yytext); |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1967 |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1968 // process_comment is only supposed to be called when we are not |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1969 // initially looking at a block comment. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1970 |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1971 std::string txt = start_in_block |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1972 ? grab_block_comment (flex_reader, eof) |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
1973 : grab_comment_block (flex_reader, false, eof); |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1974 |
8535 | 1975 if (lexer_debug_flag) |
8536
de1b944d5306
lex.l: finish previous change
John W. Eaton <jwe@octave.org>
parents:
8535
diff
changeset
|
1976 std::cerr << "C: " << txt << std::endl; |
8535 | 1977 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1978 if (help_txt.empty () && nesting_level.none ()) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1979 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1980 if (! help_buf.empty ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
1981 help_buf.pop (); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1982 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1983 help_buf.push (txt); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1984 } |
7720
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1985 |
4e2eafef689c
unify comment and help text processing in lex.l and parse.y
John W. Eaton <jwe@octave.org>
parents:
7715
diff
changeset
|
1986 octave_comment_buffer::append (txt); |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1987 |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
1988 lexer_flags.current_input_column = 1; |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1989 lexer_flags.quote_is_transpose = false; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1990 lexer_flags.convert_spaces_to_comma = true; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
1991 lexer_flags.at_beginning_of_statement = true; |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1992 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1993 if (YY_START == COMMAND_START) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1994 BEGIN (INITIAL); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1995 |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1996 if (nesting_level.none ()) |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
1997 return '\n'; |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1998 else if (nesting_level.is_bracket_or_brace ()) |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
1999 return ';'; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2000 else |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2001 return 0; |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2002 } |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
2003 |
767 | 2004 // Return 1 if the given character matches any character in the given |
2005 // string. | |
2006 | |
2857 | 2007 static bool |
2804 | 2008 match_any (char c, const char *s) |
1 | 2009 { |
2010 char tmp; | |
2011 while ((tmp = *s++) != '\0') | |
2012 { | |
2013 if (c == tmp) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2014 return true; |
1 | 2015 } |
2857 | 2016 return false; |
1 | 2017 } |
2018 | |
767 | 2019 // Given information about the spacing surrounding an operator, |
2020 // return 1 if it looks like it should be treated as a binary | |
2021 // operator. For example, | |
2022 // | |
3774 | 2023 // [ 1 + 2 ] or [ 1+ 2] or [ 1+2 ] ==> binary |
2024 // | |
2025 // [ 1 +2 ] ==> unary | |
767 | 2026 |
2857 | 2027 static bool |
3246 | 2028 looks_like_bin_op (bool spc_prev, int next_char) |
1 | 2029 { |
3246 | 2030 bool spc_next = (next_char == ' ' || next_char == '\t'); |
2031 | |
608 | 2032 return ((spc_prev && spc_next) || ! spc_prev); |
1 | 2033 } |
2034 | |
3263 | 2035 // Recognize separators. If the separator is a CRLF pair, it is |
2036 // replaced by a single LF. | |
2037 | |
2038 static bool | |
2039 next_token_is_sep_op (void) | |
2040 { | |
2041 bool retval = false; | |
2042 | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2043 int c = text_yyinput (); |
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2044 |
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2045 retval = match_any (c, ",;\n]"); |
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2046 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2047 xunput (c, yytext); |
3263 | 2048 |
2049 return retval; | |
2050 } | |
2051 | |
767 | 2052 // Try to determine if the next token should be treated as a postfix |
2053 // unary operator. This is ugly, but it seems to do the right thing. | |
2054 | |
2857 | 2055 static bool |
3246 | 2056 next_token_is_postfix_unary_op (bool spc_prev) |
1 | 2057 { |
2857 | 2058 bool un_op = false; |
1 | 2059 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2060 int c0 = text_yyinput (); |
1 | 2061 |
3246 | 2062 if (c0 == '\'' && ! spc_prev) |
2063 { | |
2064 un_op = true; | |
2065 } | |
2066 else if (c0 == '.') | |
2067 { | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2068 int c1 = text_yyinput (); |
3246 | 2069 un_op = (c1 == '\''); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2070 xunput (c1, yytext); |
3246 | 2071 } |
4613 | 2072 else if (c0 == '+') |
2073 { | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2074 int c1 = text_yyinput (); |
4613 | 2075 un_op = (c1 == '+'); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2076 xunput (c1, yytext); |
4613 | 2077 } |
2078 else if (c0 == '-') | |
2079 { | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2080 int c1 = text_yyinput (); |
4613 | 2081 un_op = (c1 == '-'); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2082 xunput (c1, yytext); |
4613 | 2083 } |
1 | 2084 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2085 xunput (c0, yytext); |
1 | 2086 |
2087 return un_op; | |
2088 } | |
2089 | |
767 | 2090 // Try to determine if the next token should be treated as a binary |
3246 | 2091 // operator. |
1521 | 2092 // |
3246 | 2093 // This kluge exists because whitespace is not always ignored inside |
3774 | 2094 // the square brackets that are used to create matrix objects (though |
2095 // spacing only really matters in the cases that can be interpreted | |
2096 // either as binary ops or prefix unary ops: currently just +, -). | |
2097 // | |
3779 | 2098 // Note that a line continuation directly following a + or - operator |
2099 // (e.g., the characters '[' 'a' ' ' '+' '\' LFD 'b' ']') will be | |
2100 // parsed as a binary operator. | |
767 | 2101 |
2857 | 2102 static bool |
3246 | 2103 next_token_is_bin_op (bool spc_prev) |
1 | 2104 { |
2857 | 2105 bool bin_op = false; |
1 | 2106 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2107 int c0 = text_yyinput (); |
1 | 2108 |
2109 switch (c0) | |
2110 { | |
777 | 2111 case '+': |
2112 case '-': | |
3774 | 2113 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2114 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2115 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2116 switch (c1) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2117 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2118 case '+': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2119 case '-': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2120 // Unary ops, spacing doesn't matter. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2121 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2122 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2123 case '=': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2124 // Binary ops, spacing doesn't matter. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2125 bin_op = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2126 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2127 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2128 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2129 // Could be either, spacing matters. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2130 bin_op = looks_like_bin_op (spc_prev, c1); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2131 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2132 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2133 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2134 xunput (c1, yytext); |
3774 | 2135 } |
2136 break; | |
2137 | |
2138 case ':': | |
3246 | 2139 case '/': |
2140 case '\\': | |
2141 case '^': | |
3774 | 2142 // Always a binary op (may also include /=, \=, and ^=). |
2143 bin_op = true; | |
1276 | 2144 break; |
2145 | |
3246 | 2146 // .+ .- ./ .\ .^ .* .** |
1554 | 2147 case '.': |
2148 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2149 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2150 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2151 if (match_any (c1, "+-/\\^*")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2152 // Always a binary op (may also include .+=, .-=, ./=, ...). |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2153 bin_op = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2154 else if (! isdigit (c1) && c1 != ' ' && c1 != '\t' && c1 != '.') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2155 // A structure element reference is a binary op. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2156 bin_op = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2157 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2158 xunput (c1, yytext); |
1554 | 2159 } |
2160 break; | |
2161 | |
3246 | 2162 // = == & && | || * ** |
2163 case '=': | |
1 | 2164 case '&': |
3246 | 2165 case '|': |
1 | 2166 case '*': |
3774 | 2167 // Always a binary op (may also include ==, &&, ||, **). |
2168 bin_op = true; | |
3246 | 2169 break; |
2170 | |
3774 | 2171 // < <= <> > >= |
1 | 2172 case '<': |
2173 case '>': | |
3774 | 2174 // Always a binary op (may also include <=, <>, >=). |
2175 bin_op = true; | |
2176 break; | |
2177 | |
2178 // ~= != | |
777 | 2179 case '~': |
2180 case '!': | |
3246 | 2181 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2182 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2183 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2184 // ~ and ! can be unary ops, so require following =. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2185 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2186 bin_op = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2187 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2188 xunput (c1, yytext); |
3246 | 2189 } |
1 | 2190 break; |
2191 | |
2192 default: | |
1276 | 2193 break; |
1 | 2194 } |
2195 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2196 xunput (c0, yytext); |
1 | 2197 |
2198 return bin_op; | |
2199 } | |
2200 | |
767 | 2201 // Used to delete trailing white space from tokens. |
2202 | |
3536 | 2203 static std::string |
1 | 2204 strip_trailing_whitespace (char *s) |
2205 { | |
3523 | 2206 std::string retval = s; |
1 | 2207 |
1823 | 2208 size_t pos = retval.find_first_of (" \t"); |
1 | 2209 |
8021 | 2210 if (pos != std::string::npos) |
1823 | 2211 retval.resize (pos); |
1 | 2212 |
2213 return retval; | |
2214 } | |
2215 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2216 // FIXME -- we need to handle block comments here. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2217 |
3665 | 2218 static void |
2219 scan_for_comments (const char *text) | |
2220 { | |
2221 std::string comment_buf; | |
2222 | |
2223 bool in_comment = false; | |
2224 bool beginning_of_comment = false; | |
2225 | |
2226 int len = strlen (text); | |
2227 int i = 0; | |
2228 | |
2229 while (i < len) | |
2230 { | |
2231 char c = text[i++]; | |
2232 | |
2233 switch (c) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2234 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2235 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2236 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2237 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2238 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2239 if (! beginning_of_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2240 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2241 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2242 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2243 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2244 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2245 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2246 beginning_of_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2247 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2248 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2249 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2250 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2251 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2252 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2253 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2254 octave_comment_buffer::append (comment_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2255 comment_buf.resize (0); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2256 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2257 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2258 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2259 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2260 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2261 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2262 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2263 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2264 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2265 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2266 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2267 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2268 } |
3665 | 2269 } |
2270 | |
2271 if (! comment_buf.empty ()) | |
2272 octave_comment_buffer::append (comment_buf); | |
2273 } | |
2274 | |
1001 | 2275 // Discard whitespace, including comments and continuations. |
1088 | 2276 // |
2277 // Return value is logical OR of the following values: | |
2278 // | |
1826 | 2279 // ATE_NOTHING : no spaces to eat |
1088 | 2280 // ATE_SPACE_OR_TAB : space or tab in input |
2281 // ATE_NEWLINE : bare new line in input | |
1001 | 2282 |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2283 // FIXME -- we need to handle block comments here. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2284 |
1826 | 2285 static yum_yum |
975 | 2286 eat_whitespace (void) |
2287 { | |
1826 | 2288 yum_yum retval = ATE_NOTHING; |
3665 | 2289 |
2290 std::string comment_buf; | |
2291 | |
2857 | 2292 bool in_comment = false; |
3665 | 2293 bool beginning_of_comment = false; |
2294 | |
2295 int c = 0; | |
2296 | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2297 while ((c = text_yyinput ()) != EOF) |
975 | 2298 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
2299 lexer_flags.current_input_column++; |
975 | 2300 |
2301 switch (c) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2302 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2303 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2304 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2305 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2306 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2307 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2308 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2309 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2310 retval |= ATE_SPACE_OR_TAB; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2311 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2312 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2313 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2314 retval |= ATE_NEWLINE; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2315 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2316 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2317 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2318 octave_comment_buffer::append (comment_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2319 comment_buf.resize (0); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2320 in_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2321 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2322 } |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
2323 lexer_flags.current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2324 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2325 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2326 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2327 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2328 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2329 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2330 if (! beginning_of_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2331 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2332 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2333 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2334 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2335 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2336 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2337 beginning_of_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2338 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2339 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2340 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2341 case '.': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2342 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2343 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2344 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2345 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2346 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2347 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2348 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2349 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2350 if (have_ellipsis_continuation ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2351 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2352 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2353 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2354 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2355 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2356 case '\\': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2357 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2358 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2359 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2360 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2361 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2362 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2363 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2364 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2365 if (have_continuation ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2366 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2367 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2368 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2369 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2370 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2371 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2372 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2373 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2374 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2375 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2376 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2377 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2378 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2379 goto done; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2380 } |
975 | 2381 } |
2382 | |
3665 | 2383 if (! comment_buf.empty ()) |
2384 octave_comment_buffer::append (comment_buf); | |
2385 | |
975 | 2386 done: |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2387 xunput (c, yytext); |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
2388 lexer_flags.current_input_column--; |
1001 | 2389 return retval; |
975 | 2390 } |
2391 | |
3220 | 2392 static inline bool |
2393 looks_like_hex (const char *s, int len) | |
2394 { | |
2395 return (len > 2 && s[0] == '0' && (s[1] == 'x' || s[1] == 'X')); | |
2396 } | |
2397 | |
975 | 2398 static void |
3246 | 2399 handle_number (void) |
972 | 2400 { |
3220 | 2401 double value = 0.0; |
2402 int nread = 0; | |
2403 | |
3598 | 2404 if (looks_like_hex (yytext, strlen (yytext))) |
3220 | 2405 { |
2406 unsigned long ival; | |
3598 | 2407 |
2408 nread = sscanf (yytext, "%lx", &ival); | |
2409 | |
3220 | 2410 value = static_cast<double> (ival); |
2411 } | |
2412 else | |
3598 | 2413 { |
2414 char *tmp = strsave (yytext); | |
2415 | |
2416 char *idx = strpbrk (tmp, "Dd"); | |
2621 | 2417 |
3598 | 2418 if (idx) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2419 *idx = 'e'; |
3598 | 2420 |
2421 nread = sscanf (tmp, "%lf", &value); | |
2422 | |
2423 delete [] tmp; | |
2424 } | |
972 | 2425 |
1826 | 2426 // If yytext doesn't contain a valid number, we are in deep doo doo. |
985 | 2427 |
972 | 2428 assert (nread == 1); |
2429 | |
3988 | 2430 lexer_flags.quote_is_transpose = true; |
2431 lexer_flags.convert_spaces_to_comma = true; | |
11217
521373e25613
correctly parse {1 2 {3 4}}
John W. Eaton <jwe@octave.org>
parents:
10426
diff
changeset
|
2432 lexer_flags.looking_for_object_index = false; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2433 lexer_flags.at_beginning_of_statement = false; |
972 | 2434 |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
2435 yylval.tok_val = new token (value, yytext, lexer_flags.input_line_number, |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
2436 lexer_flags.current_input_column); |
972 | 2437 |
2438 token_stack.push (yylval.tok_val); | |
2439 | |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
2440 lexer_flags.current_input_column += yyleng; |
972 | 2441 |
2442 do_comma_insert_check (); | |
2443 } | |
2444 | |
1001 | 2445 // We have seen a backslash and need to find out if it should be |
2446 // treated as a continuation character. If so, this eats it, up to | |
2447 // and including the new line character. | |
2448 // | |
973 | 2449 // Match whitespace only, followed by a comment character or newline. |
2450 // Once a comment character is found, discard all input until newline. | |
2451 // If non-whitespace characters are found before comment | |
2452 // characters, return 0. Otherwise, return 1. | |
2453 | |
7723
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2454 // FIXME -- we need to handle block comments here. |
74f5e0c7de9e
first pass at handling block comments
John W. Eaton <jwe@octave.org>
parents:
7722
diff
changeset
|
2455 |
2857 | 2456 static bool |
3096 | 2457 have_continuation (bool trailing_comments_ok) |
973 | 2458 { |
5765 | 2459 std::ostringstream buf; |
973 | 2460 |
3665 | 2461 std::string comment_buf; |
2462 | |
2857 | 2463 bool in_comment = false; |
3665 | 2464 bool beginning_of_comment = false; |
2465 | |
2466 int c = 0; | |
2467 | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2468 while ((c = text_yyinput ()) != EOF) |
973 | 2469 { |
3802 | 2470 buf << static_cast<char> (c); |
973 | 2471 |
2472 switch (c) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2473 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2474 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2475 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2476 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2477 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2478 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2479 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2480 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2481 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2482 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2483 case '%': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2484 case '#': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2485 if (trailing_comments_ok) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2486 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2487 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2488 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2489 if (! beginning_of_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2490 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2491 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2492 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2493 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2494 maybe_gripe_matlab_incompatible_comment (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2495 in_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2496 beginning_of_comment = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2497 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2498 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2499 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2500 goto cleanup; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2501 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2502 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2503 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2504 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2505 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2506 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2507 octave_comment_buffer::append (comment_buf); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2508 } |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
2509 lexer_flags.current_input_column = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2510 promptflag--; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2511 gripe_matlab_incompatible_continuation (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2512 return true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2513 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2514 default: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2515 if (in_comment) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2516 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2517 comment_buf += static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2518 beginning_of_comment = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2519 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2520 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2521 goto cleanup; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2522 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2523 } |
973 | 2524 } |
2525 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2526 xunput (c, yytext); |
2857 | 2527 return false; |
973 | 2528 |
3096 | 2529 cleanup: |
4051 | 2530 |
5765 | 2531 std::string s = buf.str (); |
4051 | 2532 |
2533 int len = s.length (); | |
2534 while (len--) | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2535 xunput (s[len], yytext); |
3096 | 2536 |
2857 | 2537 return false; |
973 | 2538 } |
2539 | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
2540 // We have seen a '.' and need to see if it is the start of a |
1001 | 2541 // continuation. If so, this eats it, up to and including the new |
2542 // line character. | |
2543 | |
2857 | 2544 static bool |
3096 | 2545 have_ellipsis_continuation (bool trailing_comments_ok) |
973 | 2546 { |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2547 char c1 = text_yyinput (); |
973 | 2548 if (c1 == '.') |
2549 { | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2550 char c2 = text_yyinput (); |
1091 | 2551 if (c2 == '.' && have_continuation (trailing_comments_ok)) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2552 return true; |
973 | 2553 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2554 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2555 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2556 xunput (c1, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2557 } |
973 | 2558 } |
2559 else | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2560 xunput (c1, yytext); |
973 | 2561 |
2857 | 2562 return false; |
973 | 2563 } |
2564 | |
1001 | 2565 // See if we have a continuation line. If so, eat it and the leading |
2566 // whitespace on the next line. | |
1088 | 2567 // |
2568 // Return value is the same as described for eat_whitespace(). | |
1001 | 2569 |
1826 | 2570 static yum_yum |
1001 | 2571 eat_continuation (void) |
2572 { | |
1826 | 2573 int retval = ATE_NOTHING; |
3665 | 2574 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2575 int c = text_yyinput (); |
3665 | 2576 |
1001 | 2577 if ((c == '.' && have_ellipsis_continuation ()) |
3105 | 2578 || (c == '\\' && have_continuation ())) |
1001 | 2579 retval = eat_whitespace (); |
2580 else | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2581 xunput (c, yytext); |
1001 | 2582 |
2583 return retval; | |
2584 } | |
2585 | |
973 | 2586 static int |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2587 handle_string (char delim) |
973 | 2588 { |
5765 | 2589 std::ostringstream buf; |
973 | 2590 |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
2591 int bos_line = lexer_flags.input_line_number; |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
2592 int bos_col = lexer_flags.current_input_column; |
3805 | 2593 |
973 | 2594 int c; |
1031 | 2595 int escape_pending = 0; |
973 | 2596 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2597 while ((c = text_yyinput ()) != EOF) |
973 | 2598 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
2599 lexer_flags.current_input_column++; |
973 | 2600 |
3105 | 2601 if (c == '\\') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2602 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2603 if (delim == '\'' || escape_pending) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2604 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2605 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2606 escape_pending = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2607 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2608 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2609 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2610 if (have_continuation (false)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2611 escape_pending = 0; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2612 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2613 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2614 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2615 escape_pending = 1; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2616 } |
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 continue; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2619 } |
973 | 2620 else if (c == '.') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2621 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2622 if (delim == '\'' || ! have_ellipsis_continuation (false)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2623 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2624 } |
973 | 2625 else if (c == '\n') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2626 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2627 error ("unterminated string constant"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2628 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2629 } |
973 | 2630 else if (c == delim) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2631 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2632 if (escape_pending) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2633 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2634 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2635 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2636 c = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2637 if (c == delim) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2638 { |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2639 buf << static_cast<char> (c); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2640 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2641 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2642 { |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
2643 std::string s; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2644 xunput (c, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2645 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2646 if (delim == '\'') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2647 s = buf.str (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2648 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2649 s = do_string_escapes (buf.str ()); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2650 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2651 lexer_flags.quote_is_transpose = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2652 lexer_flags.convert_spaces_to_comma = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2653 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2654 yylval.tok_val = new token (s, bos_line, bos_col); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2655 token_stack.push (yylval.tok_val); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2656 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2657 if (delim == '"') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2658 gripe_matlab_incompatible ("\" used as string delimiter"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2659 else if (delim == '\'') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2660 gripe_single_quote_string (); |
3400 | 2661 |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2662 lexer_flags.looking_for_object_index = true; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2663 lexer_flags.at_beginning_of_statement = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2664 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2665 return delim == '"' ? DQ_STRING : SQ_STRING; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2666 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2667 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2668 } |
973 | 2669 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2670 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2671 buf << static_cast<char> (c); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2672 } |
973 | 2673 |
1031 | 2674 escape_pending = 0; |
973 | 2675 } |
2676 | |
2677 return LEXICAL_ERROR; | |
2678 } | |
2679 | |
3208 | 2680 static bool |
2681 next_token_is_assign_op (void) | |
2682 { | |
2683 bool retval = false; | |
2684 | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2685 int c0 = text_yyinput (); |
3208 | 2686 |
2687 switch (c0) | |
2688 { | |
2689 case '=': | |
2690 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2691 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2692 xunput (c1, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2693 if (c1 != '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2694 retval = true; |
3208 | 2695 } |
2696 break; | |
2697 | |
2698 case '+': | |
2699 case '-': | |
2700 case '*': | |
2701 case '/': | |
2702 case '\\': | |
2703 case '&': | |
2704 case '|': | |
2705 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2706 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2707 xunput (c1, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2708 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2709 retval = true; |
3208 | 2710 } |
2711 break; | |
2712 | |
2713 case '.': | |
2714 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2715 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2716 if (match_any (c1, "+-*/\\")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2717 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2718 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2719 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2720 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2721 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2722 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2723 xunput (c1, yytext); |
3208 | 2724 } |
2725 break; | |
2726 | |
2727 case '>': | |
2728 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2729 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2730 if (c1 == '>') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2731 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2732 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2733 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2734 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2735 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2736 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2737 xunput (c1, yytext); |
3208 | 2738 } |
2739 break; | |
2740 | |
2741 case '<': | |
2742 { | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2743 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2744 if (c1 == '<') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2745 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2746 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2747 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2748 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2749 retval = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2750 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2751 xunput (c1, yytext); |
3208 | 2752 } |
2753 break; | |
2754 | |
2755 default: | |
2756 break; | |
2757 } | |
2758 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2759 xunput (c0, yytext); |
3208 | 2760 |
2761 return retval; | |
2762 } | |
2763 | |
4633 | 2764 static bool |
2765 next_token_is_index_op (void) | |
2766 { | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2767 int c = text_yyinput (); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2768 xunput (c, yytext); |
4633 | 2769 return c == '(' || c == '{'; |
2770 } | |
2771 | |
4612 | 2772 static int |
2773 handle_close_bracket (bool spc_gobbled, int bracket_type) | |
971 | 2774 { |
4612 | 2775 int retval = bracket_type; |
3208 | 2776 |
1826 | 2777 if (! nesting_level.none ()) |
971 | 2778 { |
1826 | 2779 nesting_level.remove (); |
4613 | 2780 |
2781 if (bracket_type == ']') | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2782 lexer_flags.bracketflag--; |
4613 | 2783 else if (bracket_type == '}') |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2784 lexer_flags.braceflag--; |
4613 | 2785 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2786 panic_impossible (); |
971 | 2787 } |
2788 | |
4613 | 2789 if (lexer_flags.bracketflag == 0 && lexer_flags.braceflag == 0) |
4323 | 2790 BEGIN (INITIAL); |
1001 | 2791 |
4608 | 2792 if (bracket_type == ']' |
2793 && next_token_is_assign_op () | |
2794 && ! lexer_flags.looking_at_return_list) | |
971 | 2795 { |
3208 | 2796 retval = CLOSE_BRACE; |
971 | 2797 } |
4613 | 2798 else if ((lexer_flags.bracketflag || lexer_flags.braceflag) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2799 && lexer_flags.convert_spaces_to_comma |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2800 && (nesting_level.is_bracket () |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2801 || (nesting_level.is_brace () |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2802 && ! lexer_flags.looking_at_object_index.front ()))) |
971 | 2803 { |
4633 | 2804 bool index_op = next_token_is_index_op (); |
2805 | |
2806 // Don't insert comma if we are looking at something like | |
2807 // | |
2808 // [x{i}{j}] or [x{i}(j)] | |
2809 // | |
2810 // but do if we are looking at | |
2811 // | |
2812 // [x{i} {j}] or [x{i} (j)] | |
2813 | |
2814 if (spc_gobbled || ! (bracket_type == '}' && index_op)) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2815 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2816 bool bin_op = next_token_is_bin_op (spc_gobbled); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2817 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2818 bool postfix_un_op = next_token_is_postfix_unary_op (spc_gobbled); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2819 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2820 bool sep_op = next_token_is_sep_op (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2821 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2822 if (! (postfix_un_op || bin_op || sep_op)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2823 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2824 maybe_warn_separator_insert (','); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2825 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2826 xunput (',', yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2827 return retval; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2828 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2829 } |
971 | 2830 } |
2831 | |
2857 | 2832 lexer_flags.quote_is_transpose = true; |
2833 lexer_flags.convert_spaces_to_comma = true; | |
3208 | 2834 |
2835 return retval; | |
971 | 2836 } |
2837 | |
1072 | 2838 static void |
2839 maybe_unput_comma (int spc_gobbled) | |
2840 { | |
4613 | 2841 if (nesting_level.is_bracket () |
2842 || (nesting_level.is_brace () | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2843 && ! lexer_flags.looking_at_object_index.front ())) |
1072 | 2844 { |
3246 | 2845 int bin_op = next_token_is_bin_op (spc_gobbled); |
1072 | 2846 |
3246 | 2847 int postfix_un_op = next_token_is_postfix_unary_op (spc_gobbled); |
1072 | 2848 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2849 int c1 = text_yyinput (); |
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
2850 int c2 = text_yyinput (); |
2970 | 2851 |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2852 xunput (c2, yytext); |
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
2853 xunput (c1, yytext); |
2970 | 2854 |
3263 | 2855 int sep_op = next_token_is_sep_op (); |
2970 | 2856 |
1072 | 2857 int dot_op = (c1 == '.' |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2858 && (isalpha (c2) || isspace (c2) || c2 == '_')); |
2970 | 2859 |
3388 | 2860 if (postfix_un_op || bin_op || sep_op || dot_op) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2861 return; |
3388 | 2862 |
3985 | 2863 int index_op = (c1 == '(' || c1 == '{'); |
3388 | 2864 |
4476 | 2865 // If there is no space before the indexing op, we don't insert |
2866 // a comma. | |
2867 | |
2868 if (index_op && ! spc_gobbled) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2869 return; |
4476 | 2870 |
2871 maybe_warn_separator_insert (','); | |
2872 | |
8745
6dc61981d18b
better handling of object indexing in lexer
John W. Eaton <jwe@octave.org>
parents:
8701
diff
changeset
|
2873 xunput (',', yytext); |
1072 | 2874 } |
2875 } | |
2876 | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2877 static bool |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2878 next_token_can_follow_bin_op (void) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2879 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2880 std::stack<char> buf; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2881 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2882 int c = EOF; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2883 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2884 // Skip whitespace in current statement on current line |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2885 while (true) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2886 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2887 c = text_yyinput (); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2888 |
8767
026c6732ec7a
lex.l (next_token_can_follow_bin_op): push all characters read on to buffer stack
John W. Eaton <jwe@octave.org>
parents:
8746
diff
changeset
|
2889 buf.push (c); |
026c6732ec7a
lex.l (next_token_can_follow_bin_op): push all characters read on to buffer stack
John W. Eaton <jwe@octave.org>
parents:
8746
diff
changeset
|
2890 |
026c6732ec7a
lex.l (next_token_can_follow_bin_op): push all characters read on to buffer stack
John W. Eaton <jwe@octave.org>
parents:
8746
diff
changeset
|
2891 if (match_any (c, ",;\n") || (c != ' ' && c != '\t')) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2892 break; |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2893 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2894 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2895 // Restore input. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2896 while (! buf.empty ()) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2897 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2898 xunput (buf.top (), yytext); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2899 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2900 buf.pop (); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2901 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2902 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2903 return (isalnum (c) || match_any (c, "!\"'(-[_{~")); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2904 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2905 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2906 static bool |
10052
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2907 can_be_command (const std::string& tok) |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2908 { |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2909 // Don't allow these names to be treated as commands to avoid |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2910 // surprises when parsing things like "NaN ^2". |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2911 |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2912 return ! (tok == "e" |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2913 || tok == "I" || tok == "i" |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2914 || tok == "J" || tok == "j" |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2915 || tok == "Inf" || tok == "inf" |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2916 || tok == "NaN" || tok == "nan"); |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2917 } |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2918 |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
2919 static bool |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2920 looks_like_command_arg (void) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2921 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2922 bool retval = true; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2923 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2924 int c0 = text_yyinput (); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2925 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2926 switch (c0) |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2927 { |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2928 // = == |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2929 case '=': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2930 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2931 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2932 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2933 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2934 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2935 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2936 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2937 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2938 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2939 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2940 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2941 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2942 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2943 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2944 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2945 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2946 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2947 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2948 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2949 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2950 case '(': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2951 case '{': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2952 // Indexing. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2953 retval = false; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2954 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2955 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2956 case '\n': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2957 // EOL. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2958 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2959 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2960 case '\'': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2961 case '"': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2962 // Beginning of a character string. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2963 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2964 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2965 // + - ++ -- += -= |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2966 case '+': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2967 case '-': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
2968 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2969 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2970 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2971 switch (c1) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2972 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2973 case '\n': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2974 // EOL. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2975 case '+': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2976 case '-': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2977 // Unary ops, spacing doesn't matter. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2978 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2979 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2980 case '\t': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2981 case ' ': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2982 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2983 if (next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2984 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2985 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2986 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2987 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2988 case '=': |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2989 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2990 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2991 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2992 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2993 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2994 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2995 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2996 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2997 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2998 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2999 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3000 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3001 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3002 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3003 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3004 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3005 case ':': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3006 case '/': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3007 case '\\': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3008 case '^': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3009 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3010 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3011 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3012 if (! match_any (c1, ",;\n") && (c1 == ' ' || c1 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3013 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3014 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3015 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3016 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3017 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3018 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3019 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3020 // .+ .- ./ .\ .^ .* .** |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3021 case '.': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3022 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3023 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3024 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3025 if (match_any (c1, "+-/\\^*")) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3026 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3027 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3028 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3029 if (c2 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3030 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3031 int c3 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3032 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3033 if (! match_any (c3, ",;\n") && (c3 == ' ' || c3 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3034 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3035 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3036 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3037 xunput (c3, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3038 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3039 else if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3040 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3041 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3042 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3043 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3044 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3045 else if (! match_any (c1, ",;\n") |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3046 && (! isdigit (c1) && c1 != ' ' && c1 != '\t' |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3047 && c1 != '.')) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3048 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3049 // Structure reference. FIXME -- is this a complete check? |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3050 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3051 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3052 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3053 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3054 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3055 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3056 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3057 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3058 // & && | || * ** |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3059 case '&': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3060 case '|': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3061 case '*': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3062 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3063 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3064 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3065 if (c1 == c0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3066 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3067 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3068 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3069 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3070 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3071 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3072 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3073 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3074 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3075 else if (! match_any (c1, ",;\n") && (c1 == ' ' || c1 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3076 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3077 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3078 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3079 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3080 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3081 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3082 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3083 // < <= > >= |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3084 case '<': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3085 case '>': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3086 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3087 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3088 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3089 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3090 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3091 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3092 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3093 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3094 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3095 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3096 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3097 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3098 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3099 else if (! match_any (c1, ",;\n") && (c1 == ' ' || c1 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3100 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3101 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3102 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3103 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3104 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3105 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3106 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3107 // ~= != |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3108 case '~': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3109 case '!': |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3110 { |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3111 int c1 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3112 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3113 // ~ and ! can be unary ops, so require following =. |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3114 if (c1 == '=') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3115 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3116 int c2 = text_yyinput (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3117 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3118 if (! match_any (c2, ",;\n") && (c2 == ' ' || c2 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3119 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3120 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3121 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3122 xunput (c2, yytext); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3123 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3124 else if (! match_any (c1, ",;\n") && (c1 == ' ' || c1 == '\t') |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3125 && next_token_can_follow_bin_op ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3126 retval = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3127 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3128 xunput (c1, yytext); |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3129 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3130 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3131 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3132 default: |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3133 break; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3134 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3135 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3136 xunput (c0, yytext); |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3137 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3138 return retval; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3139 } |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3140 |
9476 | 3141 static int |
3142 handle_superclass_identifier (void) | |
3143 { | |
3144 eat_continuation (); | |
3145 | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3146 std::string pkg; |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3147 std::string meth = strip_trailing_whitespace (yytext); |
9476 | 3148 size_t pos = meth.find ("@"); |
3149 std::string cls = meth.substr (pos).substr (1); | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3150 meth = meth.substr (0, pos - 1); |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3151 |
9476 | 3152 pos = cls.find ("."); |
3153 if (pos != std::string::npos) | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3154 { |
9476 | 3155 pkg = cls.substr (pos).substr (1); |
3156 cls = cls.substr (0, pos - 1); | |
3157 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3158 |
9476 | 3159 int kw_token = (is_keyword_token (meth) || is_keyword_token (cls) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3160 || is_keyword_token (pkg)); |
9476 | 3161 if (kw_token) |
3162 { | |
3163 error ("method, class and package names may not be keywords"); | |
3164 return LEXICAL_ERROR; | |
3165 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3166 |
9476 | 3167 yylval.tok_val |
3168 = new token (meth.empty () ? 0 : &(symbol_table::insert (meth)), | |
3169 cls.empty () ? 0 : &(symbol_table::insert (cls)), | |
3170 pkg.empty () ? 0 : &(symbol_table::insert (pkg)), | |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3171 lexer_flags.input_line_number, |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3172 lexer_flags.current_input_column); |
9476 | 3173 token_stack.push (yylval.tok_val); |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3174 |
9476 | 3175 lexer_flags.convert_spaces_to_comma = true; |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3176 lexer_flags.current_input_column += yyleng; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3177 |
9476 | 3178 return SUPERCLASSREF; |
3179 } | |
3180 | |
3181 static int | |
3182 handle_meta_identifier (void) | |
3183 { | |
3184 eat_continuation (); | |
3185 | |
3186 std::string pkg; | |
3187 std::string cls = strip_trailing_whitespace (yytext).substr (1); | |
3188 size_t pos = cls.find ("."); | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3189 |
9476 | 3190 if (pos != std::string::npos) |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3191 { |
9476 | 3192 pkg = cls.substr (pos).substr (1); |
3193 cls = cls.substr (0, pos - 1); | |
3194 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3195 |
9476 | 3196 int kw_token = is_keyword_token (cls) || is_keyword_token (pkg); |
3197 if (kw_token) | |
3198 { | |
3199 error ("class and package names may not be keywords"); | |
3200 return LEXICAL_ERROR; | |
3201 } | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3202 |
9476 | 3203 yylval.tok_val |
3204 = new token (cls.empty () ? 0 : &(symbol_table::insert (cls)), | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3205 pkg.empty () ? 0 : &(symbol_table::insert (pkg)), |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3206 lexer_flags.input_line_number, |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3207 lexer_flags.current_input_column); |
9476 | 3208 |
3209 token_stack.push (yylval.tok_val); | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3210 |
9476 | 3211 lexer_flags.convert_spaces_to_comma = true; |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3212 lexer_flags.current_input_column += yyleng; |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3213 |
9476 | 3214 return METAQUERY; |
3215 } | |
3216 | |
767 | 3217 // Figure out exactly what kind of token to return when we have seen |
4238 | 3218 // an identifier. Handles keywords. Return -1 if the identifier |
3219 // should be ignored. | |
767 | 3220 |
146 | 3221 static int |
3974 | 3222 handle_identifier (void) |
146 | 3223 { |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3224 bool at_bos = lexer_flags.at_beginning_of_statement; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3225 |
3974 | 3226 std::string tok = strip_trailing_whitespace (yytext); |
3227 | |
3228 int c = yytext[yyleng-1]; | |
3229 | |
3230 int cont_is_spc = eat_continuation (); | |
3231 | |
3232 int spc_gobbled = (cont_is_spc || c == ' ' || c == '\t'); | |
3233 | |
2970 | 3234 // If we are expecting a structure element, avoid recognizing |
3235 // keywords and other special names and return STRUCT_ELT, which is | |
3236 // a string that is also a valid identifier. But first, we have to | |
3237 // decide whether to insert a comma. | |
747 | 3238 |
1826 | 3239 if (lexer_flags.looking_at_indirect_ref) |
1072 | 3240 { |
2970 | 3241 do_comma_insert_check (); |
3242 | |
1072 | 3243 maybe_unput_comma (spc_gobbled); |
2819 | 3244 |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3245 yylval.tok_val = new token (tok, lexer_flags.input_line_number, |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3246 lexer_flags.current_input_column); |
2819 | 3247 |
3248 token_stack.push (yylval.tok_val); | |
3249 | |
2857 | 3250 lexer_flags.quote_is_transpose = true; |
3251 lexer_flags.convert_spaces_to_comma = true; | |
9324
29563379fa9b
don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
3252 lexer_flags.looking_for_object_index = true; |
2819 | 3253 |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3254 lexer_flags.current_input_column += yyleng; |
2819 | 3255 |
2970 | 3256 return STRUCT_ELT; |
1072 | 3257 } |
747 | 3258 |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3259 lexer_flags.at_beginning_of_statement = false; |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3260 |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3261 // The is_keyword_token may reset |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3262 // lexer_flags.at_beginning_of_statement. For example, if it sees |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3263 // an else token, then the next token is at the beginning of a |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3264 // statement. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3265 |
4930 | 3266 int kw_token = is_keyword_token (tok); |
3267 | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3268 // If we found a keyword token, then the beginning_of_statement flag |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3269 // is already set. Otherwise, we won't be at the beginning of a |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3270 // statement. |
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3271 |
4930 | 3272 if (lexer_flags.looking_at_function_handle) |
3273 { | |
3274 if (kw_token) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3275 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3276 error ("function handles may not refer to keywords"); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3277 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3278 return LEXICAL_ERROR; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3279 } |
4930 | 3280 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3281 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3282 yylval.tok_val = new token (tok, lexer_flags.input_line_number, |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3283 lexer_flags.current_input_column); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3284 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3285 token_stack.push (yylval.tok_val); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3286 |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3287 lexer_flags.current_input_column += yyleng; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3288 lexer_flags.quote_is_transpose = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3289 lexer_flags.convert_spaces_to_comma = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3290 lexer_flags.looking_for_object_index = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3291 |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3292 return FCN_HANDLE; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3293 } |
4930 | 3294 } |
3295 | |
5102 | 3296 // If we have a regular keyword, return it. |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3297 // Keywords can be followed by identifiers. |
146 | 3298 |
3299 if (kw_token) | |
3300 { | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3301 if (kw_token >= 0) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3302 { |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3303 lexer_flags.current_input_column += yyleng; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3304 lexer_flags.quote_is_transpose = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3305 lexer_flags.convert_spaces_to_comma = true; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3306 lexer_flags.looking_for_object_index = false; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3307 } |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3308 |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3309 return kw_token; |
146 | 3310 } |
3311 | |
1826 | 3312 // See if we have a plot keyword (title, using, with, or clear). |
146 | 3313 |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
3314 int c1 = text_yyinput (); |
3480 | 3315 |
3316 bool next_tok_is_eq = false; | |
3317 if (c1 == '=') | |
3318 { | |
7728
13820b9f5fd9
more consistent handling of CR/CRLF/LF line endings in lexer and parser
John W. Eaton <jwe@octave.org>
parents:
7723
diff
changeset
|
3319 int c2 = text_yyinput (); |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
3320 xunput (c2, yytext); |
3480 | 3321 |
3322 if (c2 != '=') | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3323 next_tok_is_eq = true; |
3480 | 3324 } |
3325 | |
8447
adab48231a03
make input_line_number work again
John W. Eaton <jwe@octave.org>
parents:
8312
diff
changeset
|
3326 xunput (c1, yytext); |
1001 | 3327 |
2702 | 3328 // Kluge alert. |
3329 // | |
3330 // If we are looking at a text style function, set up to gobble its | |
2745 | 3331 // arguments. |
3332 // | |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3333 // If the following token is '=', or if we are parsing a function |
3189 | 3334 // return list or function parameter list, or if we are looking at |
3335 // something like [ab,cd] = foo (), force the symbol to be inserted | |
3336 // as a variable in the current symbol table. | |
2702 | 3337 |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3338 if (! is_variable (tok)) |
2702 | 3339 { |
10052
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3340 if (at_bos && spc_gobbled && can_be_command (tok) |
5813ec5077b5
don't allow e, i, j, inf, or nan to be commands
John W. Eaton <jwe@octave.org>
parents:
10048
diff
changeset
|
3341 && looks_like_command_arg ()) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3342 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3343 BEGIN (COMMAND_START); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3344 } |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3345 else if (next_tok_is_eq |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3346 || lexer_flags.looking_at_decl_list |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3347 || lexer_flags.looking_at_return_list |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3348 || (lexer_flags.looking_at_parameter_list |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3349 && ! lexer_flags.looking_at_initializer_expression)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3350 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3351 symbol_table::force_variable (tok); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3352 } |
8001
ff9e7873f8ea
improve handling of command-style names in matrix_or_assign_lhs context
John W. Eaton <jwe@octave.org>
parents:
7898
diff
changeset
|
3353 else if (lexer_flags.looking_at_matrix_or_assign_lhs) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3354 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3355 lexer_flags.pending_local_variables.insert (tok); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3356 } |
2702 | 3357 } |
3358 | |
4234 | 3359 // Find the token in the symbol table. Beware the magic |
3360 // transformation of the end keyword... | |
3361 | |
3362 if (tok == "end") | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3363 tok = "__end__"; |
146 | 3364 |
7336 | 3365 yylval.tok_val = new token (&(symbol_table::insert (tok)), |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3366 lexer_flags.input_line_number, |
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3367 lexer_flags.current_input_column); |
7336 | 3368 |
146 | 3369 token_stack.push (yylval.tok_val); |
3370 | |
1826 | 3371 // After seeing an identifer, it is ok to convert spaces to a comma |
3372 // (if needed). | |
146 | 3373 |
2857 | 3374 lexer_flags.convert_spaces_to_comma = true; |
146 | 3375 |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3376 if (! (next_tok_is_eq || YY_START == COMMAND_START)) |
2877 | 3377 { |
3378 lexer_flags.quote_is_transpose = true; | |
146 | 3379 |
2877 | 3380 do_comma_insert_check (); |
3381 | |
3382 maybe_unput_comma (spc_gobbled); | |
146 | 3383 } |
3384 | |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3385 lexer_flags.current_input_column += yyleng; |
146 | 3386 |
9324
29563379fa9b
don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
3387 if (tok != "__end__") |
29563379fa9b
don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
3388 lexer_flags.looking_for_object_index = true; |
29563379fa9b
don't look for object index after keyword
John W. Eaton <jwe@octave.org>
parents:
8974
diff
changeset
|
3389 |
146 | 3390 return NAME; |
3391 } | |
3392 | |
4867 | 3393 bool |
3394 is_keyword (const std::string& s) | |
3395 { | |
14292
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3396 // Parsing function names like "set.property_name" inside |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3397 // classdef-style class definitions is simplified by handling the |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3398 // "set" and "get" portions of the names using the same mechanism as |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3399 // is used for keywords. However, they are not really keywords in |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3400 // the language, so omit them from the list of possible keywords. |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3401 |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3402 return (octave_kw_hash::in_word_set (s.c_str (), s.length ()) != 0 |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3403 && ! (s == "set" || s == "get")); |
4867 | 3404 } |
3405 | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8745
diff
changeset
|
3406 DEFUN (iskeyword, args, , |
4264 | 3407 "-*- texinfo -*-\n\ |
11431
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
11367
diff
changeset
|
3408 @deftypefn {Built-in Function} {} iskeyword ()\n\ |
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
11367
diff
changeset
|
3409 @deftypefnx {Built-in Function} {} iskeyword (@var{name})\n\ |
4264 | 3410 Return true if @var{name} is an Octave keyword. If @var{name}\n\ |
3411 is omitted, return a list of keywords.\n\ | |
11431
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
11367
diff
changeset
|
3412 @seealso{isvarname, exist}\n\ |
4264 | 3413 @end deftypefn") |
3414 { | |
3415 octave_value retval; | |
3416 | |
3417 int argc = args.length () + 1; | |
3418 | |
4867 | 3419 string_vector argv = args.make_argv ("iskeyword"); |
4264 | 3420 |
3421 if (error_state) | |
3422 return retval; | |
3423 | |
3424 if (argc == 1) | |
3425 { | |
14292
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3426 // Neither set and get are keywords. See the note in the |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3427 // is_keyword function for additional details. |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3428 |
4264 | 3429 string_vector lst (TOTAL_KEYWORDS); |
3430 | |
14292
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3431 int j = 0; |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3432 |
4264 | 3433 for (int i = 0; i < TOTAL_KEYWORDS; i++) |
14292
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3434 { |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3435 std::string tmp = wordlist[i].name; |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3436 |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3437 if (! (tmp == "set" || tmp == "get")) |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3438 lst[j++] = tmp; |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3439 } |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3440 |
d1810b2ca809
iskeyword: don't consider get and set as keywords
John W. Eaton <jwe@octave.org>
parents:
14161
diff
changeset
|
3441 lst.resize (j); |
4264 | 3442 |
8504
0e0bd07e6ae2
omission from last patch
Jaroslav Hajek <highegg@gmail.com>
parents:
8447
diff
changeset
|
3443 retval = Cell (lst.sort ()); |
4264 | 3444 } |
3445 else if (argc == 2) | |
3446 { | |
4867 | 3447 retval = is_keyword (argv[1]); |
4264 | 3448 } |
3449 else | |
5823 | 3450 print_usage (); |
4264 | 3451 |
3452 return retval; | |
3453 } | |
3454 | |
12801
2837514cf178
codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents:
12627
diff
changeset
|
3455 /* |
2837514cf178
codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents:
12627
diff
changeset
|
3456 |
2837514cf178
codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents:
12627
diff
changeset
|
3457 %!assert (iskeyword ("for")) |
2837514cf178
codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents:
12627
diff
changeset
|
3458 %!assert (iskeyword ("fort"), false) |
2837514cf178
codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents:
12627
diff
changeset
|
3459 %!assert (iskeyword ("fft"), false) |
2837514cf178
codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents:
12627
diff
changeset
|
3460 |
2837514cf178
codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents:
12627
diff
changeset
|
3461 */ |
2837514cf178
codesprint: Add tests for iskeyword() to lex.ll
Rik <octave@nomad.inbox5.com>
parents:
12627
diff
changeset
|
3462 |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
3463 void |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
3464 prep_lexer_for_script_file (void) |
7715
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
3465 { |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
3466 BEGIN (SCRIPT_FILE_BEGIN); |
5b4d278ec828
parse scripts completely before executing
John W. Eaton <jwe@octave.org>
parents:
7634
diff
changeset
|
3467 } |
4264 | 3468 |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
3469 void |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
3470 prep_lexer_for_function_file (void) |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
3471 { |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
3472 BEGIN (FUNCTION_FILE_BEGIN); |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
3473 } |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
3474 |
16098
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3475 static int |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3476 octave_read (char *buf, unsigned max_size) |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3477 { |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3478 static const char * const eol = "\n"; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3479 static std::string input_buf; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3480 static const char *pos = 0; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3481 static size_t chars_left = 0; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3482 static bool eof = false; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3483 |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3484 int status = 0; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3485 |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3486 if (chars_left == 0) |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3487 { |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3488 pos = 0; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3489 |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3490 input_buf = get_user_input (eof); |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3491 |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3492 chars_left = input_buf.length (); |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3493 |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3494 pos = input_buf.c_str (); |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3495 } |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3496 |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3497 if (chars_left > 0) |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3498 { |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3499 size_t len = max_size > chars_left ? chars_left : max_size; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3500 assert (len > 0); |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3501 |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3502 memcpy (buf, pos, len); |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3503 |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3504 chars_left -= len; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3505 pos += len; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3506 |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3507 // Make sure input ends with a new line character. |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3508 if (chars_left == 0 && buf[len-1] != '\n') |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3509 { |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3510 if (len < max_size) |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3511 { |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3512 // There is enough room to plug the newline character in |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3513 // the buffer. |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3514 buf[len++] = '\n'; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3515 } |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3516 else |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3517 { |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3518 // There isn't enough room to plug the newline character |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3519 // in the buffer so make sure it is returned on the next |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3520 // octave_read call. |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3521 pos = eol; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3522 chars_left = 1; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3523 } |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3524 } |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3525 |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3526 status = len; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3527 } |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3528 else |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3529 { |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3530 status = YY_NULL; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3531 |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3532 if (! eof) |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3533 YY_FATAL_ERROR ("octave_read () in flex scanner failed"); |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3534 } |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3535 |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3536 return status; |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3537 } |
24b3800d30e7
move octave_read to lex.ll
John W. Eaton <jwe@octave.org>
parents:
15468
diff
changeset
|
3538 |
3388 | 3539 static void |
3540 maybe_warn_separator_insert (char sep) | |
3541 { | |
3523 | 3542 std::string nm = curr_fcn_file_full_name; |
3388 | 3543 |
5794 | 3544 if (nm.empty ()) |
3545 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
|
3546 "potential auto-insertion of '%c' near line %d", |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3547 sep, lexer_flags.input_line_number); |
5794 | 3548 else |
3549 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
|
3550 "potential auto-insertion of '%c' near line %d of file %s", |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3551 sep, lexer_flags.input_line_number, nm.c_str ()); |
3388 | 3552 } |
3553 | |
3400 | 3554 static void |
3555 gripe_single_quote_string (void) | |
3556 { | |
3523 | 3557 std::string nm = curr_fcn_file_full_name; |
3400 | 3558 |
5794 | 3559 if (nm.empty ()) |
3560 warning_with_id ("Octave:single-quote-string", | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3561 "single quote delimited string near line %d", |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3562 lexer_flags.input_line_number); |
5794 | 3563 else |
3564 warning_with_id ("Octave:single-quote-string", | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3565 "single quote delimited string near line %d of file %s", |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3566 lexer_flags.input_line_number, nm.c_str ()); |
3400 | 3567 } |
3568 | |
4037 | 3569 static void |
3570 gripe_matlab_incompatible (const std::string& msg) | |
3571 { | |
8974
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3572 std::string nm = curr_fcn_file_full_name; |
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3573 |
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3574 if (nm.empty ()) |
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3575 warning_with_id ("Octave:matlab-incompatible", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3576 "potential Matlab compatibility problem: %s", |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3577 msg.c_str ()); |
8974
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3578 else |
fde2a916b2ac
include line and file info in parser warnings
John W. Eaton <jwe@octave.org>
parents:
8950
diff
changeset
|
3579 warning_with_id ("Octave:matlab-incompatible", |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3580 "potential Matlab compatibility problem: %s near line %d offile %s", |
16103
6434f70f0ee0
move input_line_number and current_input_column to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents:
16102
diff
changeset
|
3581 msg.c_str (), lexer_flags.input_line_number, nm.c_str ()); |
4037 | 3582 } |
3583 | |
3584 static void | |
3585 maybe_gripe_matlab_incompatible_comment (char c) | |
3586 { | |
3587 if (c == '#') | |
3588 gripe_matlab_incompatible ("# used as comment character"); | |
3589 } | |
3590 | |
3591 static void | |
3592 gripe_matlab_incompatible_continuation (void) | |
3593 { | |
3594 gripe_matlab_incompatible ("\\ used as line continuation marker"); | |
3595 } | |
3596 | |
3597 static void | |
3598 gripe_matlab_incompatible_operator (const std::string& op) | |
3599 { | |
3600 std::string t = op; | |
3601 int n = t.length (); | |
3602 if (t[n-1] == '\n') | |
3603 t.resize (n-1); | |
3604 gripe_matlab_incompatible (t + " used as operator"); | |
3605 } | |
3606 | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3607 static void |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3608 display_token (int tok) |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3609 { |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3610 switch (tok) |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3611 { |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3612 case '=': std::cerr << "'='\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3613 case ':': std::cerr << "':'\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3614 case '-': std::cerr << "'-'\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3615 case '+': std::cerr << "'+'\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3616 case '*': std::cerr << "'*'\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3617 case '/': std::cerr << "'/'\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3618 case ADD_EQ: std::cerr << "ADD_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3619 case SUB_EQ: std::cerr << "SUB_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3620 case MUL_EQ: std::cerr << "MUL_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3621 case DIV_EQ: std::cerr << "DIV_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3622 case LEFTDIV_EQ: std::cerr << "LEFTDIV_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3623 case POW_EQ: std::cerr << "POW_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3624 case EMUL_EQ: std::cerr << "EMUL_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3625 case EDIV_EQ: std::cerr << "EDIV_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3626 case ELEFTDIV_EQ: std::cerr << "ELEFTDIV_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3627 case EPOW_EQ: std::cerr << "EPOW_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3628 case AND_EQ: std::cerr << "AND_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3629 case OR_EQ: std::cerr << "OR_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3630 case LSHIFT_EQ: std::cerr << "LSHIFT_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3631 case RSHIFT_EQ: std::cerr << "RSHIFT_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3632 case LSHIFT: std::cerr << "LSHIFT\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3633 case RSHIFT: std::cerr << "RSHIFT\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3634 case EXPR_AND_AND: std::cerr << "EXPR_AND_AND\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3635 case EXPR_OR_OR: std::cerr << "EXPR_OR_OR\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3636 case EXPR_AND: std::cerr << "EXPR_AND\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3637 case EXPR_OR: std::cerr << "EXPR_OR\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3638 case EXPR_NOT: std::cerr << "EXPR_NOT\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3639 case EXPR_LT: std::cerr << "EXPR_LT\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3640 case EXPR_LE: std::cerr << "EXPR_LE\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3641 case EXPR_EQ: std::cerr << "EXPR_EQ\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3642 case EXPR_NE: std::cerr << "EXPR_NE\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3643 case EXPR_GE: std::cerr << "EXPR_GE\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3644 case EXPR_GT: std::cerr << "EXPR_GT\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3645 case LEFTDIV: std::cerr << "LEFTDIV\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3646 case EMUL: std::cerr << "EMUL\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3647 case EDIV: std::cerr << "EDIV\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3648 case ELEFTDIV: std::cerr << "ELEFTDIV\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3649 case EPLUS: std::cerr << "EPLUS\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3650 case EMINUS: std::cerr << "EMINUS\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3651 case QUOTE: std::cerr << "QUOTE\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3652 case TRANSPOSE: std::cerr << "TRANSPOSE\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3653 case PLUS_PLUS: std::cerr << "PLUS_PLUS\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3654 case MINUS_MINUS: std::cerr << "MINUS_MINUS\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3655 case POW: std::cerr << "POW\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3656 case EPOW: std::cerr << "EPOW\n"; break; |
11466
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3657 |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3658 case NUM: |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3659 case IMAG_NUM: |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3660 std::cerr << (tok == NUM ? "NUM" : "IMAG_NUM") |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3661 << " [" << yylval.tok_val->number () << "]\n"; |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3662 break; |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3663 |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3664 case STRUCT_ELT: |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3665 std::cerr << "STRUCT_ELT [" << yylval.tok_val->text () << "]\n"; break; |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3666 |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3667 case NAME: |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3668 { |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3669 symbol_table::symbol_record *sr = yylval.tok_val->sym_rec (); |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3670 std::cerr << "NAME"; |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3671 if (sr) |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3672 std::cerr << " [" << sr->name () << "]"; |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3673 std::cerr << "\n"; |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3674 } |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3675 break; |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3676 |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3677 case END: std::cerr << "END\n"; break; |
11466
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3678 |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3679 case DQ_STRING: |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3680 case SQ_STRING: |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3681 std::cerr << (tok == DQ_STRING ? "DQ_STRING" : "SQ_STRING") |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3682 << " [" << yylval.tok_val->text () << "]\n"; |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3683 break; |
1f64a7b73e98
lex.ll (display_tokens): print token values
John W. Eaton <jwe@octave.org>
parents:
11464
diff
changeset
|
3684 |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3685 case FOR: std::cerr << "FOR\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3686 case WHILE: std::cerr << "WHILE\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3687 case DO: std::cerr << "DO\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3688 case UNTIL: std::cerr << "UNTIL\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3689 case IF: std::cerr << "IF\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3690 case ELSEIF: std::cerr << "ELSEIF\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3691 case ELSE: std::cerr << "ELSE\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3692 case SWITCH: std::cerr << "SWITCH\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3693 case CASE: std::cerr << "CASE\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3694 case OTHERWISE: std::cerr << "OTHERWISE\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3695 case BREAK: std::cerr << "BREAK\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3696 case CONTINUE: std::cerr << "CONTINUE\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3697 case FUNC_RET: std::cerr << "FUNC_RET\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3698 case UNWIND: std::cerr << "UNWIND\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3699 case CLEANUP: std::cerr << "CLEANUP\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3700 case TRY: std::cerr << "TRY\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3701 case CATCH: std::cerr << "CATCH\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3702 case GLOBAL: std::cerr << "GLOBAL\n"; break; |
14294
9e3983c8963c
deprecate the static keyword
John W. Eaton <jwe@octave.org>
parents:
14292
diff
changeset
|
3703 case PERSISTENT: std::cerr << "PERSISTENT\n"; break; |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3704 case FCN_HANDLE: std::cerr << "FCN_HANDLE\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3705 case END_OF_INPUT: std::cerr << "END_OF_INPUT\n\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3706 case LEXICAL_ERROR: std::cerr << "LEXICAL_ERROR\n\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3707 case FCN: std::cerr << "FCN\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3708 case CLOSE_BRACE: std::cerr << "CLOSE_BRACE\n"; break; |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
3709 case SCRIPT_FILE: std::cerr << "SCRIPT_FILE\n"; break; |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
3710 case FUNCTION_FILE: std::cerr << "FUNCTION_FILE\n"; break; |
9476 | 3711 case SUPERCLASSREF: std::cerr << "SUPERCLASSREF\n"; break; |
3712 case METAQUERY: std::cerr << "METAQUERY\n"; break; | |
3713 case GET: std::cerr << "GET\n"; break; | |
3714 case SET: std::cerr << "SET\n"; break; | |
3715 case PROPERTIES: std::cerr << "PROPERTIES\n"; break; | |
3716 case METHODS: std::cerr << "METHODS\n"; break; | |
3717 case EVENTS: std::cerr << "EVENTS\n"; break; | |
3718 case CLASSDEF: std::cerr << "CLASSDEF\n"; break; | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3719 case '\n': std::cerr << "\\n\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3720 case '\r': std::cerr << "\\r\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3721 case '\t': std::cerr << "TAB\n"; break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3722 default: |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3723 { |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3724 if (tok < 256) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3725 std::cerr << static_cast<char> (tok) << "\n"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3726 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3727 std::cerr << "UNKNOWN(" << tok << ")\n"; |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3728 } |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3729 break; |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3730 } |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3731 } |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3732 |
8535 | 3733 static void |
3734 display_state (void) | |
3735 { | |
3736 std::cerr << "S: "; | |
3737 | |
3738 switch (YY_START) | |
3739 { | |
3740 case INITIAL: | |
3741 std::cerr << "INITIAL" << std::endl; | |
3742 break; | |
3743 | |
3744 case COMMAND_START: | |
3745 std::cerr << "COMMAND_START" << std::endl; | |
3746 break; | |
3747 | |
3748 case MATRIX_START: | |
3749 std::cerr << "MATRIX_START" << std::endl; | |
3750 break; | |
3751 | |
3752 case SCRIPT_FILE_BEGIN: | |
3753 std::cerr << "SCRIPT_FILE_BEGIN" << std::endl; | |
3754 break; | |
3755 | |
9474
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
3756 case FUNCTION_FILE_BEGIN: |
25ed2d6aacf6
Parse nested functions more accurately.
David Grundberg <individ@acc.umu.se>
parents:
9324
diff
changeset
|
3757 std::cerr << "FUNCTION_FILE_BEGIN" << std::endl; |
8535 | 3758 break; |
3759 | |
3760 default: | |
3761 std::cerr << "UNKNOWN START STATE!" << std::endl; | |
3762 break; | |
3763 } | |
3764 } | |
3765 | |
3766 static void | |
3767 lexer_debug (const char *pattern, const char *text) | |
3768 { | |
3769 std::cerr << std::endl; | |
3770 | |
3771 display_state (); | |
3772 | |
3773 std::cerr << "P: " << pattern << std::endl; | |
3774 std::cerr << "T: " << text << std::endl; | |
3775 } | |
3776 | |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3777 DEFUN (__display_tokens__, args, nargout, |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3778 "-*- texinfo -*-\n\ |
8812
7d48766c21a5
use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents:
8767
diff
changeset
|
3779 @deftypefn {Built-in Function} {} __display_tokens__ ()\n\ |
7722
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3780 Query or set the internal variable that determines whether Octave's\n\ |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3781 lexer displays tokens as they are read.\n\ |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3782 @end deftypefn") |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3783 { |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3784 return SET_INTERNAL_VARIABLE (display_tokens); |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3785 } |
c3bb0b7a4261
lex.l: allow tokens to be displayed when parsed
John W. Eaton <jwe@octave.org>
parents:
7720
diff
changeset
|
3786 |
4910 | 3787 DEFUN (__token_count__, , , |
3788 "-*- texinfo -*-\n\ | |
8812
7d48766c21a5
use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents:
8767
diff
changeset
|
3789 @deftypefn {Built-in Function} {} __token_count__ ()\n\ |
4910 | 3790 Number of language tokens processed since Octave startup.\n\ |
3791 @end deftypefn") | |
3792 { | |
3793 return octave_value (Vtoken_count); | |
3794 } | |
3795 | |
8535 | 3796 DEFUN (__lexer_debug_flag__, args, nargout, |
8812
7d48766c21a5
use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents:
8767
diff
changeset
|
3797 "-*- texinfo -*-\n\ |
7d48766c21a5
use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents:
8767
diff
changeset
|
3798 @deftypefn {Built-in Function} {@var{old_val} =} __lexer_debug_flag__ (@var{new_val}))\n\ |
7d48766c21a5
use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents:
8767
diff
changeset
|
3799 Undocumented internal function.\n\ |
7d48766c21a5
use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents:
8767
diff
changeset
|
3800 @end deftypefn") |
8535 | 3801 { |
3802 octave_value retval; | |
3803 | |
3804 retval = set_internal_variable (lexer_debug_flag, args, nargout, | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
3805 "__lexer_debug_flag__"); |
8535 | 3806 |
3807 return retval; | |
3808 } |