Commit | Line | Data |
---|---|---|
970ed795 | 1 | /****************************************************************************** |
d44e3c4f | 2 | * Copyright (c) 2000-2016 Ericsson Telecom AB |
970ed795 EL |
3 | * All rights reserved. This program and the accompanying materials |
4 | * are made available under the terms of the Eclipse Public License v1.0 | |
5 | * which accompanies this distribution, and is available at | |
6 | * http://www.eclipse.org/legal/epl-v10.html | |
d44e3c4f | 7 | * |
8 | * Contributors: | |
9 | * Balasko, Jeno | |
10 | * Delic, Adam | |
11 | * Forstner, Matyas | |
12 | * Pandi, Krisztian | |
13 | * Raduly, Csaba | |
14 | * Szabados, Kristof | |
15 | * Szabo, Janos Zoltan – initial implementation | |
16 | * | |
970ed795 EL |
17 | ******************************************************************************/ |
18 | %option nostack | |
19 | %option noyylineno | |
20 | %option noyywrap | |
21 | %option nounput | |
22 | %option never-interactive | |
23 | %option prefix="pstring_yy" | |
24 | ||
25 | %{ /* ****************** C declarations ***************** */ | |
26 | ||
27 | #include <stdio.h> | |
28 | #include <ctype.h> | |
29 | #include "../error.h" | |
30 | #include "../Identifier.hh" | |
31 | #include "../Int.hh" | |
32 | #include "PatternString.hh" | |
33 | ||
34 | using namespace Ttcn; | |
35 | using namespace Common; | |
36 | ||
37 | /** Adjust location information. | |
38 | * | |
39 | * \c start_index and \c end_index index into \c yytext. | |
40 | * \c current_line and \c current_column index into the actual source line | |
41 | * (only a part of which is in \c yytext). | |
42 | * | |
43 | * UPDATE_LOCATION should be called to "cover" all of yytext. | |
44 | * | |
45 | * @param [in] start_index index into yytext (the first character to consider) | |
46 | * @param [in] end_index index into yytext (one-past) | |
47 | * @param [in,out] current_line | |
48 | * @param [in,out] current_column | |
49 | * */ | |
3abe9331 | 50 | static void update_location(size_t start_index, size_t end_index, |
51 | size_t& current_line, size_t& current_column) | |
970ed795 | 52 | { |
3abe9331 | 53 | for (size_t i = start_index; i < yyleng && i < end_index; i++) { |
970ed795 EL |
54 | // count CR, count LF, but count CR + LF as one |
55 | switch (yytext[i]) { | |
56 | case '\r': | |
57 | current_line++; | |
58 | current_column = 0; | |
59 | break; | |
60 | case '\n': | |
61 | if (i == 0 || yytext[i - 1] != '\r') { | |
62 | current_line++; | |
63 | current_column = 0; | |
64 | } | |
65 | break; | |
66 | default: | |
67 | current_column++; | |
68 | } | |
69 | } | |
70 | } | |
71 | ||
72 | // This must be side-effect-free ! | |
73 | #define UPDATE_LOCATION(start_index, end_index) \ | |
74 | update_location(start_index, end_index, current_line, current_column) | |
75 | ||
76 | #define YY_DECL static PatternString *yylex(const char *current_file, \ | |
3abe9331 | 77 | size_t current_line, size_t current_column) |
970ed795 EL |
78 | |
79 | %} /* ***************** definitions ***************** */ | |
80 | ||
81 | IDENTIFIER [A-Za-z][A-Za-z0-9_]* | |
82 | NUMBER 0|([1-9][0-9]*) | |
83 | WS [ \t\r\n\v\f]* | |
84 | NEWLINE \r|\n|\r\n | |
85 | ||
86 | %% /* ***************** rules ************************* */ | |
87 | ||
88 | bool in_set = false; /* inside a [] */ | |
89 | PatternString* ps = new PatternString(); | |
90 | ||
91 | "{"{WS}{IDENTIFIER}(({WS}\.{WS}{IDENTIFIER})|({WS}\[{WS}({IDENTIFIER}|{NUMBER}){WS}\]))*{WS}"}" { | |
92 | if (in_set) { | |
93 | // in a set a reference (without the \N at start) is just simple text, | |
94 | // the matched token does not contain characters that are special in a set | |
95 | ps->addString(yytext); | |
96 | UPDATE_LOCATION(0, yyleng); | |
97 | } else { | |
98 | vector<string> identifiers; | |
99 | vector<int> beginnings; | |
100 | ||
101 | const char * beg = yytext; | |
102 | const char * end = 0; | |
103 | int id_begin = 0; // the first alphanumeric character of an identifier | |
104 | for (;;) { | |
105 | while (isspace(*++beg) || (*beg=='[') ) ; // skip whitespace and [ | |
106 | int *current_begin = new int(beg - yytext); | |
107 | if (!id_begin) id_begin = *current_begin; | |
108 | end = beg; | |
109 | while (isalnum(*++end) || *end=='_') ; // scan for the end of identifier | |
110 | ||
111 | string* identifier = new string(end-beg, beg); | |
112 | identifiers.add(identifier); | |
113 | beginnings .add(current_begin); | |
114 | ||
115 | beg = end; // end remembers the position before the whitespace | |
116 | while (isspace(*beg) || (*beg==']') ) ++beg; // skip whitespace and ] | |
117 | if (*beg=='}') break; | |
118 | } | |
119 | ||
120 | size_t num_id = identifiers.size(); | |
121 | bool error = false; | |
122 | Ttcn::Reference *ref = 0; | |
3abe9331 | 123 | size_t last = 0; // last "consumed" index into yytext |
970ed795 EL |
124 | int old_column = 0, old_line = 0; // the beginning of the entire reference |
125 | ||
126 | for (size_t i = 0; i < num_id; ++i) { | |
127 | const string & id_str = *identifiers[i]; | |
3abe9331 | 128 | const size_t & id_beg = *beginnings [i]; |
970ed795 EL |
129 | if (Identifier::is_reserved_word(id_str, Identifier::ID_TTCN)) { |
130 | UPDATE_LOCATION(last, id_beg); // consume before identifier | |
131 | int first_line = current_line, first_column = current_column; | |
132 | UPDATE_LOCATION(id_beg, id_beg+id_str.size()); // consume identifier | |
133 | Location loc(current_file, first_line, first_column, current_line, | |
134 | current_column); // location covers the identifier | |
135 | UPDATE_LOCATION(id_beg+id_str.size(), yyleng); // consume to end | |
136 | loc.error("Invalid reference expression: `%s' is a reserved word in TTCN-3", | |
137 | id_str.c_str()); | |
138 | error = true; | |
139 | break; | |
140 | } else if (in_set) { | |
141 | UPDATE_LOCATION(last, id_beg); // consume before identifier | |
142 | break; | |
143 | } else { | |
144 | if (i==0) { | |
145 | UPDATE_LOCATION(0, id_begin); // consume before identifier | |
146 | old_column = current_column; old_line = current_line; | |
147 | ref = new Ttcn::Reference(new Identifier(Identifier::ID_TTCN, id_str)); | |
148 | UPDATE_LOCATION(id_begin, last = id_begin + id_str.size()); | |
149 | } else { | |
150 | UPDATE_LOCATION(last, id_beg); | |
151 | Location loc(current_file, current_line, current_column, current_line, | |
152 | current_column + id_str.size()); | |
153 | UPDATE_LOCATION(id_beg, last = id_beg + id_str.size()); | |
154 | ||
155 | int temp_i; | |
156 | FieldOrArrayRef *fieldref = 0; | |
157 | ||
158 | if(1 != sscanf( (id_str.c_str()), "%d", &temp_i)){ | |
159 | fieldref = new FieldOrArrayRef(new Identifier(Identifier::ID_TTCN, id_str)); | |
160 | } | |
161 | else { | |
162 | int_val_t* temp_intvalt = new int_val_t(temp_i); | |
163 | Value* temp_value = new Value(Value::V_INT, temp_intvalt); | |
164 | fieldref = new FieldOrArrayRef(temp_value); | |
165 | } | |
166 | if (ref) { | |
167 | ref->set_location(loc); | |
168 | ref->add(fieldref); | |
169 | } else { | |
170 | loc.error("Invalid reference expression"); | |
171 | } | |
172 | } | |
173 | } | |
174 | } // next i | |
175 | ||
176 | if (error) { | |
177 | delete ref; // safe even if NULL | |
178 | } else { | |
179 | UPDATE_LOCATION(last, yyleng); // consume to the end | |
180 | Location loc(current_file, old_line, old_column, current_line, current_column); | |
181 | if (ref) { | |
182 | ref->set_location(loc); | |
183 | ps->addRef(ref); | |
184 | } else { | |
185 | loc.error("Invalid reference expression"); | |
186 | } | |
187 | } | |
188 | ||
189 | // cleanup (can't be done in the second loop because it may end early) | |
190 | for (size_t i = 0; i < num_id; ++i) { | |
191 | delete identifiers[i]; | |
192 | delete beginnings [i]; | |
193 | } | |
194 | identifiers.clear(); | |
195 | beginnings .clear(); | |
196 | } //else | |
197 | } | |
198 | ||
199 | "{"[^}]*"}" { | |
200 | int first_line = current_line, first_column = current_column; | |
201 | UPDATE_LOCATION(0, yyleng); | |
202 | Location loc(current_file, first_line, first_column, current_line, | |
203 | current_column); | |
204 | loc.error("Invalid reference expression: `%s'", yytext); | |
205 | } | |
206 | ||
207 | "\\N"{WS}"{"{WS}{IDENTIFIER}{WS}"}" { | |
208 | int id_begin = 3; | |
209 | while (!isalpha(yytext[id_begin])) id_begin++; | |
210 | int id_len = 1; | |
211 | while (isalnum(yytext[id_begin + id_len]) || yytext[id_begin + id_len] == '_') | |
212 | id_len++; | |
213 | string id_str(id_len, yytext + id_begin); | |
214 | /* | |
215 | Ttcn::Reference *ref = new Ttcn::Reference(new Identifier( | |
216 | Identifier::ID_TTCN, id_str)); | |
217 | ref->set_location(loc); | |
218 | ps->addRefdCharSet(ref); | |
219 | */ | |
220 | int first_line = current_line, first_column = current_column; | |
221 | UPDATE_LOCATION(0, yyleng); | |
222 | Location loc(current_file, first_line, first_column, current_line, | |
223 | current_column); | |
224 | if (Identifier::is_reserved_word(id_str, Identifier::ID_TTCN)) { | |
225 | loc.error("Invalid character set reference: `%s' is a reserved word in " | |
226 | "TTCN-3", id_str.c_str()); | |
227 | } else if (in_set) { | |
228 | loc.warning("Character set reference `\\N{%s}' is not supported, " | |
229 | "dropped out from the set", id_str.c_str()); | |
230 | } else { | |
231 | loc.warning("Character set reference `\\N{%s}' is not supported, " | |
232 | "substituted with `?'", id_str.c_str()); | |
233 | ps->addChar('?'); | |
234 | } | |
235 | } | |
236 | ||
237 | "\\N"{WS}"{"[^}]*"}" { | |
238 | int first_line = current_line, first_column = current_column; | |
239 | UPDATE_LOCATION(0, yyleng); | |
240 | Location loc(current_file, first_line, first_column, current_line, | |
241 | current_column); | |
242 | loc.error("Invalid character set reference: `%s'", yytext); | |
243 | } | |
244 | ||
245 | "\\q"{WS}"{"{WS}{NUMBER}{WS}","{WS}{NUMBER}{WS}","{WS}{NUMBER}{WS}","{WS}{NUMBER}{WS}"}" { | |
3abe9331 | 246 | size_t group_begin = 3; |
970ed795 EL |
247 | while (!isdigit(yytext[group_begin])) group_begin++; |
248 | UPDATE_LOCATION(0, group_begin); | |
3abe9331 | 249 | size_t group_len = 1; |
970ed795 EL |
250 | while (isdigit(yytext[group_begin + group_len])) group_len++; |
251 | string group_str(group_len, yytext + group_begin); | |
252 | Location group_loc(current_file, current_line, current_column, current_line, | |
253 | current_column + group_len); | |
254 | Int group = string2Int(group_str, group_loc); | |
255 | if (group < 0 || group > 127) { | |
256 | group_loc.error("The first number of quadruple (group) must be within " | |
257 | "the range 0 .. 127 instead of %s", Int2string(group).c_str()); | |
258 | group = group < 0 ? 0 : 127; | |
259 | } | |
3abe9331 | 260 | size_t plane_begin = group_begin + group_len + 1; |
970ed795 EL |
261 | while (!isdigit(yytext[plane_begin])) plane_begin++; |
262 | UPDATE_LOCATION(group_begin, plane_begin); | |
263 | int plane_len = 1; | |
264 | while (isdigit(yytext[plane_begin + plane_len])) plane_len++; | |
265 | string plane_str(plane_len, yytext + plane_begin); | |
266 | Location plane_loc(current_file, current_line, current_column, current_line, | |
267 | current_column + plane_len); | |
268 | Int plane = string2Int(plane_str, plane_loc); | |
269 | if (plane < 0 || plane > 255) { | |
270 | plane_loc.error("The second number of quadruple (plane) must be within " | |
271 | "the range 0 .. 255 instead of %s", Int2string(plane).c_str()); | |
272 | plane = plane < 0 ? 0 : 255; | |
273 | } | |
3abe9331 | 274 | size_t row_begin = plane_begin + plane_len + 1; |
970ed795 EL |
275 | while (!isdigit(yytext[row_begin])) row_begin++; |
276 | UPDATE_LOCATION(plane_begin, row_begin); | |
3abe9331 | 277 | size_t row_len = 1; |
970ed795 EL |
278 | while (isdigit(yytext[row_begin + row_len])) row_len++; |
279 | string row_str(row_len, yytext + row_begin); | |
280 | Location row_loc(current_file, current_line, current_column, current_line, | |
281 | current_column + row_len); | |
282 | Int row = string2Int(row_str, row_loc); | |
283 | if (row < 0 || row > 255) { | |
284 | row_loc.error("The third number of quadruple (row) must be within " | |
285 | "the range 0 .. 255 instead of %s", Int2string(row).c_str()); | |
286 | row = row < 0 ? 0 : 255; | |
287 | } | |
3abe9331 | 288 | size_t cell_begin = row_begin + row_len + 1; |
970ed795 EL |
289 | while (!isdigit(yytext[cell_begin])) cell_begin++; |
290 | UPDATE_LOCATION(row_begin, cell_begin); | |
3abe9331 | 291 | size_t cell_len = 1; |
970ed795 EL |
292 | while (isdigit(yytext[cell_begin + cell_len])) cell_len++; |
293 | string cell_str(cell_len, yytext + cell_begin); | |
294 | Location cell_loc(current_file, current_line, current_column, current_line, | |
295 | current_column + cell_len); | |
296 | Int cell = string2Int(cell_str, cell_loc); | |
297 | if (cell < 0 || cell > 255) { | |
298 | cell_loc.error("The fourth number of quadruple (cell) must be within " | |
299 | "the range 0 .. 255 instead of %s", Int2string(cell).c_str()); | |
300 | cell = cell < 0 ? 0 : 255; | |
301 | } | |
302 | bool add_quadruple = true; | |
303 | if (group == 0 && plane == 0 && row == 0) { | |
304 | if (isprint(cell)) { | |
305 | switch (cell) { | |
306 | case '-': | |
307 | case '^': | |
308 | if (!in_set) break; | |
309 | case '?': | |
310 | case '*': | |
311 | case '\\': | |
312 | case '[': | |
313 | case ']': | |
314 | case '{': | |
315 | case '}': | |
316 | case '"': | |
317 | case '|': | |
318 | case '(': | |
319 | case ')': | |
320 | case '#': | |
321 | case '+': | |
322 | ps->addChar('\\'); | |
323 | default: | |
324 | break; | |
325 | } | |
326 | ps->addChar(cell); | |
327 | add_quadruple = false; | |
328 | } else { | |
329 | switch (cell) { | |
330 | case '\t': | |
331 | ps->addString("\\t"); | |
332 | add_quadruple = false; | |
333 | break; | |
334 | case '\r': | |
335 | ps->addString("\\r"); | |
336 | add_quadruple = false; | |
337 | } | |
338 | } | |
339 | } | |
340 | if (add_quadruple) { | |
341 | ps->addString("\\q{" + Int2string(group) + "," + Int2string(plane) + "," + | |
342 | Int2string(row) + "," + Int2string(cell) + "}"); | |
343 | } | |
344 | UPDATE_LOCATION(cell_begin, yyleng); | |
345 | } | |
346 | ||
347 | "\\q"({WS}"{"[^}]*"}")? { | |
348 | int first_line = current_line, first_column = current_column; | |
349 | UPDATE_LOCATION(0, yyleng); | |
350 | Location loc(current_file, first_line, first_column, current_line, | |
351 | current_column); | |
352 | loc.error("Invalid quadruple notation: `%s'", yytext); | |
353 | } | |
354 | ||
355 | "[]" { | |
356 | if(in_set) { | |
357 | ps->addString("\\[]"); | |
358 | in_set = false; | |
359 | } else { | |
360 | ps->addString("[\\]"); | |
361 | in_set = true; | |
362 | } | |
363 | current_column += 2; | |
364 | } | |
365 | ||
366 | "[^]" { | |
367 | if(in_set) { | |
368 | ps->addString("\\[\\^]"); | |
369 | in_set = false; | |
370 | } else { | |
371 | ps->addString("[^\\]"); | |
372 | in_set = true; | |
373 | } | |
374 | current_column += 3; | |
375 | } | |
376 | ||
377 | "[" { | |
378 | if(in_set) { | |
379 | ps->addString("\\["); | |
380 | } else { | |
381 | ps->addChar('['); | |
382 | in_set = true; | |
383 | } | |
384 | current_column++; | |
385 | } | |
386 | ||
387 | "]" { | |
388 | if (in_set) { | |
389 | ps->addChar(']'); | |
390 | in_set = false; | |
391 | } else { | |
392 | Location loc(current_file, current_line, current_column, current_line, | |
393 | current_column + 1); | |
394 | loc.error("Unmatched `]'. Did you mean `\\]'?"); | |
395 | ps->addString("\\]"); | |
396 | } | |
397 | current_column++; | |
398 | } | |
399 | ||
400 | "{"|"}" { | |
401 | Location loc(current_file, current_line, current_column, current_line, | |
402 | current_column + 1); | |
403 | loc.warning("Unmatched `%c' was treated literally", yytext[0]); | |
404 | ps->addChar('\\'); | |
405 | ps->addChar(yytext[0]); | |
406 | current_column++; | |
407 | } | |
408 | ||
409 | "\\\""|"\"\"" { | |
410 | ps->addChar('"'); | |
411 | current_column += 2; | |
412 | } | |
413 | /* \metachars and escaped metachars */ | |
414 | \\[dwtnrsb?*\\\[\]\-\^|()#+] { | |
415 | ps->addString(yytext); | |
416 | current_column += 2; | |
417 | } | |
418 | ||
419 | "\\"(.|{NEWLINE}) { | |
420 | int first_line = current_line, first_column = current_column; | |
421 | UPDATE_LOCATION(0, yyleng); | |
422 | Location loc(current_file, first_line, first_column, current_line, | |
423 | current_column); | |
424 | if (isprint((unsigned char)yytext[1])) | |
425 | loc.warning("Use of unrecognized escape sequence `\\%c' is deprecated", | |
426 | yytext[1]); | |
427 | else loc.warning("Use of unrecognized escape sequence is deprecated"); | |
428 | ps->addString(yytext + 1); | |
429 | } | |
430 | ||
431 | "#"{WS}[0-9] { | |
432 | int first_line = current_line, first_column = current_column; | |
433 | UPDATE_LOCATION(0, yyleng); | |
434 | if (in_set) { | |
435 | Location loc(current_file, first_line, first_column, current_line, | |
436 | current_column); | |
437 | loc.error("Number of repetitions `#n' cannot be given inside a set " | |
438 | "expression"); | |
439 | } else if (yytext[yyleng - 1] != '1') { | |
440 | ps->addChar('#'); | |
441 | ps->addChar(yytext[yyleng - 1]); | |
442 | } | |
443 | } | |
444 | ||
445 | "#"{WS}"("{WS}{NUMBER}{WS}")" { | |
446 | if (in_set) { | |
447 | int first_line = current_line, first_column = current_column; | |
448 | UPDATE_LOCATION(0, yyleng); | |
449 | Location loc(current_file, first_line, first_column, current_line, | |
450 | current_column); | |
451 | loc.error("Number of repetitions `#(n)' cannot be given inside a set " | |
452 | "expression"); | |
453 | } else { | |
3abe9331 | 454 | size_t number_begin = 2; |
970ed795 EL |
455 | while (!isdigit(yytext[number_begin])) number_begin++; |
456 | UPDATE_LOCATION(0, number_begin); | |
457 | int number_len = 1; | |
458 | while (isdigit(yytext[number_begin + number_len])) number_len++; | |
459 | string number_str(number_len, yytext + number_begin); | |
460 | Location number_loc(current_file, current_line, current_column, | |
461 | current_line, current_column + number_len); | |
462 | UPDATE_LOCATION(number_begin, yyleng); | |
463 | Int number = string2Int(number_str, number_loc); | |
464 | if (number < 0) { | |
465 | number_loc.error("A non-negative integer value was expected as the " | |
466 | "number of repetitions instead of %s", Int2string(number).c_str()); | |
467 | } else if (number != 1) ps->addString("#(" + Int2string(number) + ")"); | |
468 | } | |
469 | } | |
470 | ||
471 | "#"{WS}"("{WS}{NUMBER}{WS}","{WS}{NUMBER}{WS}")" { | |
472 | int first_line = current_line, first_column = current_column; | |
473 | if (in_set) { | |
474 | UPDATE_LOCATION(0, yyleng); | |
475 | Location loc(current_file, first_line, first_column, current_line, | |
476 | current_column); | |
477 | loc.error("Number of repetitions `#(n,m)' cannot be given inside a set " | |
478 | "expression"); | |
479 | } else { | |
3abe9331 | 480 | size_t lower_begin = 2; |
970ed795 EL |
481 | while (!isdigit(yytext[lower_begin])) lower_begin++; |
482 | UPDATE_LOCATION(0, lower_begin); | |
483 | int lower_len = 1; | |
484 | while (isdigit(yytext[lower_begin + lower_len])) lower_len++; | |
485 | string lower_str(lower_len, yytext + lower_begin); | |
486 | Location lower_loc(current_file, current_line, current_column, | |
487 | current_line, current_column + lower_len); | |
488 | Int lower = string2Int(lower_str, lower_loc); | |
489 | if (lower < 0) { | |
490 | lower_loc.error("A non-negative integer value was expected as the " | |
491 | "minimum number of repetitions instead of %s", | |
492 | Int2string(lower).c_str()); | |
493 | lower = 0; | |
494 | } | |
3abe9331 | 495 | size_t upper_begin = lower_begin + lower_len + 1; |
970ed795 EL |
496 | while (!isdigit(yytext[upper_begin])) upper_begin++; |
497 | UPDATE_LOCATION(lower_begin, upper_begin); | |
498 | int upper_len = 1; | |
499 | while (isdigit(yytext[upper_begin + upper_len])) upper_len++; | |
500 | string upper_str(upper_len, yytext + upper_begin); | |
501 | Location upper_loc(current_file, current_line, current_column, | |
502 | current_line, current_column + upper_len); | |
503 | UPDATE_LOCATION(upper_begin, yyleng); | |
504 | Int upper = string2Int(upper_str, upper_loc); | |
505 | if (upper < 0) { | |
506 | upper_loc.error("A non-negative integer value was expected as the " | |
507 | "maximum number of repetitions instead of %s", | |
508 | Int2string(upper).c_str()); | |
509 | } else if (lower > upper) { | |
510 | Location loc(current_file, first_line, first_column, current_line, | |
511 | current_column); | |
512 | loc.error("The lower bound is higher than the upper bound in the number " | |
513 | "of repetitions: `#(%s,%s)'", Int2string(lower).c_str(), | |
514 | Int2string(upper).c_str()); | |
515 | } else if (lower == upper) { | |
516 | if (lower != 1) ps->addString("#(" + Int2string(lower) + ")"); | |
517 | } else { | |
518 | if (lower == 0) ps->addString("#(," + Int2string(upper) + ")"); | |
519 | else ps->addString("#(" + Int2string(lower) + "," + Int2string(upper) + | |
520 | ")"); | |
521 | } | |
522 | } | |
523 | } | |
524 | ||
525 | "#"{WS}"("{WS}{NUMBER}{WS}","{WS}")" { | |
526 | if (in_set) { | |
527 | int first_line = current_line, first_column = current_column; | |
528 | UPDATE_LOCATION(0, yyleng); | |
529 | Location loc(current_file, first_line, first_column, current_line, | |
530 | current_column); | |
531 | loc.error("Number of repetitions `#(n,)' cannot be given inside a set " | |
532 | "expression"); | |
533 | } else { | |
3abe9331 | 534 | size_t lower_begin = 2; |
970ed795 EL |
535 | while (!isdigit(yytext[lower_begin])) lower_begin++; |
536 | UPDATE_LOCATION(0, lower_begin); | |
537 | int lower_len = 1; | |
538 | while (isdigit(yytext[lower_begin + lower_len])) lower_len++; | |
539 | string lower_str(lower_len, yytext + lower_begin); | |
540 | Location lower_loc(current_file, current_line, current_column, | |
541 | current_line, current_column + lower_len); | |
542 | UPDATE_LOCATION(lower_begin, yyleng); | |
543 | Int lower = string2Int(lower_str, lower_loc); | |
544 | if (lower < 0) { | |
545 | lower_loc.error("A non-negative integer value was expected as the " | |
546 | "minimum number of repetitions instead of %s", | |
547 | Int2string(lower).c_str()); | |
548 | } else if (lower == 1) ps->addChar('+'); | |
549 | else ps->addString("#(" + Int2string(lower) + ",)"); | |
550 | } | |
551 | } | |
552 | ||
553 | "#"{WS}"("{WS}","{WS}{NUMBER}{WS}")" { | |
554 | if (in_set) { | |
555 | int first_line = current_line, first_column = current_column; | |
556 | UPDATE_LOCATION(0, yyleng); | |
557 | Location loc(current_file, first_line, first_column, current_line, | |
558 | current_column); | |
559 | loc.error("Number of repetitions `#(,m)' cannot be given inside a set " | |
560 | "expression"); | |
561 | } else { | |
3abe9331 | 562 | size_t upper_begin = 3; |
970ed795 EL |
563 | while (!isdigit(yytext[upper_begin])) upper_begin++; |
564 | UPDATE_LOCATION(0, upper_begin); | |
565 | int upper_len = 1; | |
566 | while (isdigit(yytext[upper_begin + upper_len])) upper_len++; | |
567 | string upper_str(upper_len, yytext + upper_begin); | |
568 | Location upper_loc(current_file, current_line, current_column, | |
569 | current_line, current_column + upper_len); | |
570 | UPDATE_LOCATION(upper_begin, yyleng); | |
571 | Int upper = string2Int(upper_str, upper_loc); | |
572 | if (upper < 0) { | |
573 | upper_loc.error("A non-negative integer value was expected as the " | |
574 | "maximum number of repetitions instead of %s", | |
575 | Int2string(upper).c_str()); | |
576 | } else ps->addString("#(," + Int2string(upper) + ")"); | |
577 | } | |
578 | } | |
579 | ||
580 | "#"{WS}"("{WS}","{WS}")" { | |
581 | int first_line = current_line, first_column = current_column; | |
582 | UPDATE_LOCATION(0, yyleng); | |
583 | if (in_set) { | |
584 | Location loc(current_file, first_line, first_column, current_line, | |
585 | current_column); | |
586 | loc.error("Number of repetitions `#(,)' cannot be given inside a set " | |
587 | "expression"); | |
588 | } else ps->addString("#(,)"); | |
589 | } | |
590 | ||
591 | "#"{WS}"("[^)]*")" { | |
592 | int first_line = current_line, first_column = current_column; | |
593 | UPDATE_LOCATION(0, yyleng); | |
594 | Location loc(current_file, first_line, first_column, current_line, | |
595 | current_column); | |
596 | loc.error("Invalid notation for the number of repetitions: `%s'", yytext); | |
597 | } | |
598 | ||
599 | "#" { | |
600 | Location loc(current_file, current_line, current_column, current_line, | |
601 | current_column + 1); | |
602 | if (in_set) { | |
603 | loc.warning("Unescaped `#' inside character set was treated literally"); | |
604 | ps->addChar('\\'); | |
605 | ps->addChar('#'); | |
606 | } else { | |
607 | loc.error("Syntax error in the number of repetitions `#...'"); | |
608 | } | |
609 | current_column++; | |
610 | } | |
611 | ||
612 | "+" { | |
613 | if (in_set) { | |
614 | Location loc(current_file, current_line, current_column, current_line, | |
615 | current_column + 1); | |
616 | loc.warning("Unescaped `+' inside character set was treated literally"); | |
617 | ps->addChar('\\'); | |
618 | } | |
619 | ps->addChar('+'); | |
620 | current_column++; | |
621 | } | |
622 | ||
623 | .|{NEWLINE} { | |
624 | ps->addString(yytext); | |
625 | UPDATE_LOCATION(0, yyleng); | |
626 | } | |
627 | ||
628 | <<EOF>> { | |
629 | if (in_set) { | |
630 | Location loc(current_file, current_line, current_column, current_line, | |
631 | current_column + 1); | |
632 | loc.error("Missing `]' at the end of the string"); | |
633 | ps->addChar(']'); | |
634 | } | |
635 | return ps; | |
636 | } | |
637 | ||
638 | %% | |
639 | ||
640 | PatternString* parse_pattern(const char *str, const Location& p_loc) | |
641 | { | |
642 | Error_Context cntxt(&p_loc, "In character string pattern"); | |
643 | struct yy_buffer_state *flex_buffer=pstring_yy_scan_string(str); | |
644 | if (!flex_buffer) { | |
645 | FATAL_ERROR("parse_pattern(): flex buffer creation failed"); | |
646 | return 0; | |
647 | } | |
648 | ||
649 | PatternString *ps = yylex(p_loc.get_filename(), p_loc.get_first_line(), | |
650 | p_loc.get_first_column() + 1); | |
651 | pstring_yylex_destroy(); | |
652 | ||
653 | return ps; | |
654 | } |