Mercurial > projects > ldc
annotate dmd/lexer.c @ 1471:230765fc82f4
Emit nicer error messages when the user didn't set LLVM_REV and autodetection
didn't find a suitable revision or when the LLVM revision in use is too old.
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Wed, 03 Jun 2009 16:09:48 +0200 |
parents | 5f6f0929ee4c |
children | def7a1d494fd |
rev | line source |
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159 | 1 |
2 // Compiler implementation of the D programming language | |
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3 // Copyright (c) 1999-2009 by Digital Mars |
159 | 4 // All Rights Reserved |
5 // written by Walter Bright | |
6 // http://www.digitalmars.com | |
7 // License for redistribution is by either the Artistic License | |
8 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
9 // See the included readme.txt for details. | |
10 | |
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11 #if __sun && __SVR4 |
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12 #define __C99FEATURES__ 1 // Needed on Solaris for NaN and more, LDC#313 |
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13 #endif |
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14 |
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15 #if IN_LLVM |
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16 #include <cmath> |
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17 #endif |
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18 |
159 | 19 /* Lexical Analyzer */ |
20 | |
21 #include <stdio.h> | |
22 #include <string.h> | |
23 #include <ctype.h> | |
24 #include <stdarg.h> | |
25 #include <errno.h> | |
26 #include <wchar.h> | |
27 #include <stdlib.h> | |
28 #include <assert.h> | |
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29 #include <time.h> // for time() and ctime() |
159 | 30 |
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31 #include "rmem.h" |
159 | 32 |
33 #include "stringtable.h" | |
34 | |
35 #include "lexer.h" | |
36 #include "utf.h" | |
37 #include "identifier.h" | |
38 #include "id.h" | |
39 #include "module.h" | |
40 | |
41 #if _WIN32 && __DMC__ | |
42 // from \dm\src\include\setlocal.h | |
43 extern "C" char * __cdecl __locale_decpoint; | |
44 #endif | |
45 | |
46 extern int HtmlNamedEntity(unsigned char *p, int length); | |
47 | |
48 #define LS 0x2028 // UTF line separator | |
49 #define PS 0x2029 // UTF paragraph separator | |
50 | |
51 /******************************************** | |
52 * Do our own char maps | |
53 */ | |
54 | |
55 static unsigned char cmtable[256]; | |
56 | |
57 const int CMoctal = 0x1; | |
58 const int CMhex = 0x2; | |
59 const int CMidchar = 0x4; | |
60 | |
61 inline unsigned char isoctal (unsigned char c) { return cmtable[c] & CMoctal; } | |
62 inline unsigned char ishex (unsigned char c) { return cmtable[c] & CMhex; } | |
63 inline unsigned char isidchar(unsigned char c) { return cmtable[c] & CMidchar; } | |
64 | |
65 static void cmtable_init() | |
66 { | |
67 for (unsigned c = 0; c < sizeof(cmtable) / sizeof(cmtable[0]); c++) | |
68 { | |
69 if ('0' <= c && c <= '7') | |
70 cmtable[c] |= CMoctal; | |
71 if (isdigit(c) || ('a' <= c && c <= 'f') || ('A' <= c && c <= 'F')) | |
72 cmtable[c] |= CMhex; | |
73 if (isalnum(c) || c == '_') | |
74 cmtable[c] |= CMidchar; | |
75 } | |
76 } | |
77 | |
78 | |
79 /************************* Token **********************************************/ | |
80 | |
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81 const char *Token::tochars[TOKMAX]; |
159 | 82 |
83 void *Token::operator new(size_t size) | |
84 { Token *t; | |
85 | |
86 if (Lexer::freelist) | |
87 { | |
88 t = Lexer::freelist; | |
89 Lexer::freelist = t->next; | |
90 return t; | |
91 } | |
92 | |
93 return ::operator new(size); | |
94 } | |
95 | |
96 #ifdef DEBUG | |
97 void Token::print() | |
98 { | |
99 fprintf(stdmsg, "%s\n", toChars()); | |
100 } | |
101 #endif | |
102 | |
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103 const char *Token::toChars() |
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104 { const char *p; |
159 | 105 static char buffer[3 + 3 * sizeof(value) + 1]; |
106 | |
107 p = buffer; | |
108 switch (value) | |
109 { | |
110 case TOKint32v: | |
111 sprintf(buffer,"%d",(d_int32)int64value); | |
112 break; | |
113 | |
114 case TOKuns32v: | |
115 case TOKcharv: | |
116 case TOKwcharv: | |
117 case TOKdcharv: | |
118 sprintf(buffer,"%uU",(d_uns32)uns64value); | |
119 break; | |
120 | |
121 case TOKint64v: | |
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122 sprintf(buffer,"%jdL",int64value); |
159 | 123 break; |
124 | |
125 case TOKuns64v: | |
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126 sprintf(buffer,"%juUL",uns64value); |
159 | 127 break; |
128 | |
129 #if IN_GCC | |
130 case TOKfloat32v: | |
131 case TOKfloat64v: | |
132 case TOKfloat80v: | |
133 float80value.format(buffer, sizeof(buffer)); | |
134 break; | |
135 case TOKimaginary32v: | |
136 case TOKimaginary64v: | |
137 case TOKimaginary80v: | |
138 float80value.format(buffer, sizeof(buffer)); | |
139 // %% buffer | |
140 strcat(buffer, "i"); | |
141 break; | |
142 #else | |
143 case TOKfloat32v: | |
144 sprintf(buffer,"%Lgf", float80value); | |
145 break; | |
146 | |
147 case TOKfloat64v: | |
148 sprintf(buffer,"%Lg", float80value); | |
149 break; | |
150 | |
151 case TOKfloat80v: | |
152 sprintf(buffer,"%LgL", float80value); | |
153 break; | |
154 | |
155 case TOKimaginary32v: | |
156 sprintf(buffer,"%Lgfi", float80value); | |
157 break; | |
158 | |
159 case TOKimaginary64v: | |
160 sprintf(buffer,"%Lgi", float80value); | |
161 break; | |
162 | |
163 case TOKimaginary80v: | |
164 sprintf(buffer,"%LgLi", float80value); | |
165 break; | |
166 #endif | |
167 | |
168 case TOKstring: | |
169 #if CSTRINGS | |
170 p = string; | |
171 #else | |
172 { OutBuffer buf; | |
173 | |
174 buf.writeByte('"'); | |
175 for (size_t i = 0; i < len; ) | |
176 { unsigned c; | |
177 | |
178 utf_decodeChar((unsigned char *)ustring, len, &i, &c); | |
179 switch (c) | |
180 { | |
181 case 0: | |
182 break; | |
183 | |
184 case '"': | |
185 case '\\': | |
186 buf.writeByte('\\'); | |
187 default: | |
188 if (isprint(c)) | |
189 buf.writeByte(c); | |
190 else if (c <= 0x7F) | |
191 buf.printf("\\x%02x", c); | |
192 else if (c <= 0xFFFF) | |
193 buf.printf("\\u%04x", c); | |
194 else | |
195 buf.printf("\\U%08x", c); | |
196 continue; | |
197 } | |
198 break; | |
199 } | |
200 buf.writeByte('"'); | |
201 if (postfix) | |
202 buf.writeByte('"'); | |
203 buf.writeByte(0); | |
204 p = (char *)buf.extractData(); | |
205 } | |
206 #endif | |
207 break; | |
208 | |
209 case TOKidentifier: | |
210 case TOKenum: | |
211 case TOKstruct: | |
212 case TOKimport: | |
213 CASE_BASIC_TYPES: | |
214 p = ident->toChars(); | |
215 break; | |
216 | |
217 default: | |
218 p = toChars(value); | |
219 break; | |
220 } | |
221 return p; | |
222 } | |
223 | |
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224 const char *Token::toChars(enum TOK value) |
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225 { const char *p; |
159 | 226 static char buffer[3 + 3 * sizeof(value) + 1]; |
227 | |
228 p = tochars[value]; | |
229 if (!p) | |
230 { sprintf(buffer,"TOK%d",value); | |
231 p = buffer; | |
232 } | |
233 return p; | |
234 } | |
235 | |
236 /*************************** Lexer ********************************************/ | |
237 | |
238 Token *Lexer::freelist = NULL; | |
239 StringTable Lexer::stringtable; | |
240 OutBuffer Lexer::stringbuffer; | |
241 | |
242 Lexer::Lexer(Module *mod, | |
243 unsigned char *base, unsigned begoffset, unsigned endoffset, | |
244 int doDocComment, int commentToken) | |
245 : loc(mod, 1) | |
246 { | |
247 //printf("Lexer::Lexer(%p,%d)\n",base,length); | |
248 //printf("lexer.mod = %p, %p\n", mod, this->loc.mod); | |
249 memset(&token,0,sizeof(token)); | |
250 this->base = base; | |
251 this->end = base + endoffset; | |
252 p = base + begoffset; | |
253 this->mod = mod; | |
254 this->doDocComment = doDocComment; | |
255 this->anyToken = 0; | |
256 this->commentToken = commentToken; | |
257 //initKeywords(); | |
258 | |
259 /* If first line starts with '#!', ignore the line | |
260 */ | |
261 | |
262 if (p[0] == '#' && p[1] =='!') | |
263 { | |
264 p += 2; | |
265 while (1) | |
266 { unsigned char c = *p; | |
267 switch (c) | |
268 { | |
269 case '\n': | |
270 p++; | |
271 break; | |
272 | |
273 case '\r': | |
274 p++; | |
275 if (*p == '\n') | |
276 p++; | |
277 break; | |
278 | |
279 case 0: | |
280 case 0x1A: | |
281 break; | |
282 | |
283 default: | |
284 if (c & 0x80) | |
285 { unsigned u = decodeUTF(); | |
286 if (u == PS || u == LS) | |
287 break; | |
288 } | |
289 p++; | |
290 continue; | |
291 } | |
292 break; | |
293 } | |
294 loc.linnum = 2; | |
295 } | |
296 } | |
297 | |
298 | |
299 void Lexer::error(const char *format, ...) | |
300 { | |
301 if (mod && !global.gag) | |
302 { | |
303 char *p = loc.toChars(); | |
304 if (*p) | |
305 fprintf(stdmsg, "%s: ", p); | |
306 mem.free(p); | |
307 | |
308 va_list ap; | |
309 va_start(ap, format); | |
310 vfprintf(stdmsg, format, ap); | |
311 va_end(ap); | |
312 | |
313 fprintf(stdmsg, "\n"); | |
314 fflush(stdmsg); | |
315 | |
316 if (global.errors >= 20) // moderate blizzard of cascading messages | |
317 fatal(); | |
318 } | |
319 global.errors++; | |
320 } | |
321 | |
322 void Lexer::error(Loc loc, const char *format, ...) | |
323 { | |
324 if (mod && !global.gag) | |
325 { | |
326 char *p = loc.toChars(); | |
327 if (*p) | |
328 fprintf(stdmsg, "%s: ", p); | |
329 mem.free(p); | |
330 | |
331 va_list ap; | |
332 va_start(ap, format); | |
333 vfprintf(stdmsg, format, ap); | |
334 va_end(ap); | |
335 | |
336 fprintf(stdmsg, "\n"); | |
337 fflush(stdmsg); | |
338 | |
339 if (global.errors >= 20) // moderate blizzard of cascading messages | |
340 fatal(); | |
341 } | |
342 global.errors++; | |
343 } | |
344 | |
345 TOK Lexer::nextToken() | |
346 { Token *t; | |
347 | |
348 if (token.next) | |
349 { | |
350 t = token.next; | |
351 memcpy(&token,t,sizeof(Token)); | |
352 t->next = freelist; | |
353 freelist = t; | |
354 } | |
355 else | |
356 { | |
357 scan(&token); | |
358 } | |
359 //token.print(); | |
360 return token.value; | |
361 } | |
362 | |
363 Token *Lexer::peek(Token *ct) | |
364 { Token *t; | |
365 | |
366 if (ct->next) | |
367 t = ct->next; | |
368 else | |
369 { | |
370 t = new Token(); | |
371 scan(t); | |
372 t->next = NULL; | |
373 ct->next = t; | |
374 } | |
375 return t; | |
376 } | |
377 | |
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378 /*********************** |
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379 * Look ahead at next token's value. |
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380 */ |
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381 |
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382 TOK Lexer::peekNext() |
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383 { |
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384 return peek(&token)->value; |
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385 } |
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386 |
159 | 387 /********************************* |
388 * tk is on the opening (. | |
389 * Look ahead and return token that is past the closing ). | |
390 */ | |
391 | |
392 Token *Lexer::peekPastParen(Token *tk) | |
393 { | |
394 //printf("peekPastParen()\n"); | |
395 int parens = 1; | |
396 int curlynest = 0; | |
397 while (1) | |
398 { | |
399 tk = peek(tk); | |
400 //tk->print(); | |
401 switch (tk->value) | |
402 { | |
403 case TOKlparen: | |
404 parens++; | |
405 continue; | |
406 | |
407 case TOKrparen: | |
408 --parens; | |
409 if (parens) | |
410 continue; | |
411 tk = peek(tk); | |
412 break; | |
413 | |
414 case TOKlcurly: | |
415 curlynest++; | |
416 continue; | |
417 | |
418 case TOKrcurly: | |
419 if (--curlynest >= 0) | |
420 continue; | |
421 break; | |
422 | |
423 case TOKsemicolon: | |
424 if (curlynest) | |
425 continue; | |
426 break; | |
427 | |
428 case TOKeof: | |
429 break; | |
430 | |
431 default: | |
432 continue; | |
433 } | |
434 return tk; | |
435 } | |
436 } | |
437 | |
438 /********************************** | |
439 * Determine if string is a valid Identifier. | |
440 * Placed here because of commonality with Lexer functionality. | |
441 * Returns: | |
442 * 0 invalid | |
443 */ | |
444 | |
445 int Lexer::isValidIdentifier(char *p) | |
446 { | |
447 size_t len; | |
448 size_t idx; | |
449 | |
450 if (!p || !*p) | |
451 goto Linvalid; | |
452 | |
453 if (*p >= '0' && *p <= '9') // beware of isdigit() on signed chars | |
454 goto Linvalid; | |
455 | |
456 len = strlen(p); | |
457 idx = 0; | |
458 while (p[idx]) | |
459 { dchar_t dc; | |
460 | |
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461 const char *q = utf_decodeChar((unsigned char *)p, len, &idx, &dc); |
159 | 462 if (q) |
463 goto Linvalid; | |
464 | |
465 if (!((dc >= 0x80 && isUniAlpha(dc)) || isalnum(dc) || dc == '_')) | |
466 goto Linvalid; | |
467 } | |
468 return 1; | |
469 | |
470 Linvalid: | |
471 return 0; | |
472 } | |
473 | |
474 /**************************** | |
475 * Turn next token in buffer into a token. | |
476 */ | |
477 | |
478 void Lexer::scan(Token *t) | |
479 { | |
480 unsigned lastLine = loc.linnum; | |
481 unsigned linnum; | |
482 | |
483 t->blockComment = NULL; | |
484 t->lineComment = NULL; | |
485 while (1) | |
486 { | |
487 t->ptr = p; | |
488 //printf("p = %p, *p = '%c'\n",p,*p); | |
489 switch (*p) | |
490 { | |
491 case 0: | |
492 case 0x1A: | |
493 t->value = TOKeof; // end of file | |
494 return; | |
495 | |
496 case ' ': | |
497 case '\t': | |
498 case '\v': | |
499 case '\f': | |
500 p++; | |
501 continue; // skip white space | |
502 | |
503 case '\r': | |
504 p++; | |
505 if (*p != '\n') // if CR stands by itself | |
506 loc.linnum++; | |
507 continue; // skip white space | |
508 | |
509 case '\n': | |
510 p++; | |
511 loc.linnum++; | |
512 continue; // skip white space | |
513 | |
514 case '0': case '1': case '2': case '3': case '4': | |
515 case '5': case '6': case '7': case '8': case '9': | |
516 t->value = number(t); | |
517 return; | |
518 | |
519 #if CSTRINGS | |
520 case '\'': | |
521 t->value = charConstant(t, 0); | |
522 return; | |
523 | |
524 case '"': | |
525 t->value = stringConstant(t,0); | |
526 return; | |
527 | |
528 case 'l': | |
529 case 'L': | |
530 if (p[1] == '\'') | |
531 { | |
532 p++; | |
533 t->value = charConstant(t, 1); | |
534 return; | |
535 } | |
536 else if (p[1] == '"') | |
537 { | |
538 p++; | |
539 t->value = stringConstant(t, 1); | |
540 return; | |
541 } | |
542 #else | |
543 case '\'': | |
544 t->value = charConstant(t,0); | |
545 return; | |
546 | |
547 case 'r': | |
548 if (p[1] != '"') | |
549 goto case_ident; | |
550 p++; | |
551 case '`': | |
552 t->value = wysiwygStringConstant(t, *p); | |
553 return; | |
554 | |
555 case 'x': | |
556 if (p[1] != '"') | |
557 goto case_ident; | |
558 p++; | |
559 t->value = hexStringConstant(t); | |
560 return; | |
561 | |
336 | 562 #if DMDV2 |
159 | 563 case 'q': |
564 if (p[1] == '"') | |
565 { | |
566 p++; | |
567 t->value = delimitedStringConstant(t); | |
568 return; | |
569 } | |
570 else if (p[1] == '{') | |
571 { | |
572 p++; | |
573 t->value = tokenStringConstant(t); | |
574 return; | |
575 } | |
576 else | |
577 goto case_ident; | |
578 #endif | |
579 | |
580 case '"': | |
581 t->value = escapeStringConstant(t,0); | |
582 return; | |
583 | |
584 case '\\': // escaped string literal | |
585 { unsigned c; | |
586 | |
587 stringbuffer.reset(); | |
588 do | |
589 { | |
590 p++; | |
591 switch (*p) | |
592 { | |
593 case 'u': | |
594 case 'U': | |
595 case '&': | |
596 c = escapeSequence(); | |
597 stringbuffer.writeUTF8(c); | |
598 break; | |
599 | |
600 default: | |
601 c = escapeSequence(); | |
602 stringbuffer.writeByte(c); | |
603 break; | |
604 } | |
605 } while (*p == '\\'); | |
606 t->len = stringbuffer.offset; | |
607 stringbuffer.writeByte(0); | |
608 t->ustring = (unsigned char *)mem.malloc(stringbuffer.offset); | |
609 memcpy(t->ustring, stringbuffer.data, stringbuffer.offset); | |
610 t->postfix = 0; | |
611 t->value = TOKstring; | |
612 return; | |
613 } | |
614 | |
615 case 'l': | |
616 case 'L': | |
617 #endif | |
618 case 'a': case 'b': case 'c': case 'd': case 'e': | |
619 case 'f': case 'g': case 'h': case 'i': case 'j': | |
620 case 'k': case 'm': case 'n': case 'o': | |
336 | 621 #if DMDV2 |
159 | 622 case 'p': /*case 'q': case 'r':*/ case 's': case 't': |
623 #else | |
624 case 'p': case 'q': /*case 'r':*/ case 's': case 't': | |
625 #endif | |
626 case 'u': case 'v': case 'w': /*case 'x':*/ case 'y': | |
627 case 'z': | |
628 case 'A': case 'B': case 'C': case 'D': case 'E': | |
629 case 'F': case 'G': case 'H': case 'I': case 'J': | |
630 case 'K': case 'M': case 'N': case 'O': | |
631 case 'P': case 'Q': case 'R': case 'S': case 'T': | |
632 case 'U': case 'V': case 'W': case 'X': case 'Y': | |
633 case 'Z': | |
634 case '_': | |
635 case_ident: | |
636 { unsigned char c; | |
637 StringValue *sv; | |
638 Identifier *id; | |
639 | |
640 do | |
641 { | |
642 c = *++p; | |
643 } while (isidchar(c) || (c & 0x80 && isUniAlpha(decodeUTF()))); | |
644 sv = stringtable.update((char *)t->ptr, p - t->ptr); | |
645 id = (Identifier *) sv->ptrvalue; | |
646 if (!id) | |
647 { id = new Identifier(sv->lstring.string,TOKidentifier); | |
648 sv->ptrvalue = id; | |
649 } | |
650 t->ident = id; | |
651 t->value = (enum TOK) id->value; | |
652 anyToken = 1; | |
653 if (*t->ptr == '_') // if special identifier token | |
654 { | |
655 static char date[11+1]; | |
656 static char time[8+1]; | |
657 static char timestamp[24+1]; | |
658 | |
659 if (!date[0]) // lazy evaluation | |
660 { time_t t; | |
661 char *p; | |
662 | |
663 ::time(&t); | |
664 p = ctime(&t); | |
665 assert(p); | |
666 sprintf(date, "%.6s %.4s", p + 4, p + 20); | |
667 sprintf(time, "%.8s", p + 11); | |
668 sprintf(timestamp, "%.24s", p); | |
669 } | |
670 | |
336 | 671 #if DMDV1 |
159 | 672 if (mod && id == Id::FILE) |
673 { | |
674 t->ustring = (unsigned char *)(loc.filename ? loc.filename : mod->ident->toChars()); | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
675 goto Lstr; |
159 | 676 } |
677 else if (mod && id == Id::LINE) | |
678 { | |
679 t->value = TOKint64v; | |
680 t->uns64value = loc.linnum; | |
681 } | |
336 | 682 else |
683 #endif | |
684 if (id == Id::DATE) | |
159 | 685 { |
686 t->ustring = (unsigned char *)date; | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
687 goto Lstr; |
159 | 688 } |
689 else if (id == Id::TIME) | |
690 { | |
691 t->ustring = (unsigned char *)time; | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
692 goto Lstr; |
159 | 693 } |
694 else if (id == Id::VENDOR) | |
695 { | |
664
eef8ac26c66c
Some missed LLVMDC -> LDC.
Christian Kamm <kamm incasoftware de>
parents:
658
diff
changeset
|
696 t->ustring = (unsigned char *)"LDC"; |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
697 goto Lstr; |
159 | 698 } |
699 else if (id == Id::TIMESTAMP) | |
700 { | |
701 t->ustring = (unsigned char *)timestamp; | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
702 Lstr: |
159 | 703 t->value = TOKstring; |
704 Llen: | |
705 t->postfix = 0; | |
706 t->len = strlen((char *)t->ustring); | |
707 } | |
708 else if (id == Id::VERSIONX) | |
709 { unsigned major = 0; | |
710 unsigned minor = 0; | |
711 | |
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
366
diff
changeset
|
712 for (const char *p = global.version + 1; 1; p++) |
159 | 713 { |
714 char c = *p; | |
715 if (isdigit(c)) | |
716 minor = minor * 10 + c - '0'; | |
717 else if (c == '.') | |
718 { major = minor; | |
719 minor = 0; | |
720 } | |
721 else | |
722 break; | |
723 } | |
724 t->value = TOKint64v; | |
725 t->uns64value = major * 1000 + minor; | |
726 } | |
336 | 727 #if DMDV2 |
159 | 728 else if (id == Id::EOFX) |
729 { | |
730 t->value = TOKeof; | |
731 // Advance scanner to end of file | |
732 while (!(*p == 0 || *p == 0x1A)) | |
733 p++; | |
734 } | |
735 #endif | |
736 } | |
737 //printf("t->value = %d\n",t->value); | |
738 return; | |
739 } | |
740 | |
741 case '/': | |
742 p++; | |
743 switch (*p) | |
744 { | |
745 case '=': | |
746 p++; | |
747 t->value = TOKdivass; | |
748 return; | |
749 | |
750 case '*': | |
751 p++; | |
752 linnum = loc.linnum; | |
753 while (1) | |
754 { | |
755 while (1) | |
756 { unsigned char c = *p; | |
757 switch (c) | |
758 { | |
759 case '/': | |
760 break; | |
761 | |
762 case '\n': | |
763 loc.linnum++; | |
764 p++; | |
765 continue; | |
766 | |
767 case '\r': | |
768 p++; | |
769 if (*p != '\n') | |
770 loc.linnum++; | |
771 continue; | |
772 | |
773 case 0: | |
774 case 0x1A: | |
775 error("unterminated /* */ comment"); | |
776 p = end; | |
777 t->value = TOKeof; | |
778 return; | |
779 | |
780 default: | |
781 if (c & 0x80) | |
782 { unsigned u = decodeUTF(); | |
783 if (u == PS || u == LS) | |
784 loc.linnum++; | |
785 } | |
786 p++; | |
787 continue; | |
788 } | |
789 break; | |
790 } | |
791 p++; | |
792 if (p[-2] == '*' && p - 3 != t->ptr) | |
793 break; | |
794 } | |
795 if (commentToken) | |
796 { | |
797 t->value = TOKcomment; | |
798 return; | |
799 } | |
800 else if (doDocComment && t->ptr[2] == '*' && p - 4 != t->ptr) | |
801 { // if /** but not /**/ | |
802 getDocComment(t, lastLine == linnum); | |
803 } | |
804 continue; | |
805 | |
806 case '/': // do // style comments | |
807 linnum = loc.linnum; | |
808 while (1) | |
809 { unsigned char c = *++p; | |
810 switch (c) | |
811 { | |
812 case '\n': | |
813 break; | |
814 | |
815 case '\r': | |
816 if (p[1] == '\n') | |
817 p++; | |
818 break; | |
819 | |
820 case 0: | |
821 case 0x1A: | |
822 if (commentToken) | |
823 { | |
824 p = end; | |
825 t->value = TOKcomment; | |
826 return; | |
827 } | |
828 if (doDocComment && t->ptr[2] == '/') | |
829 getDocComment(t, lastLine == linnum); | |
830 p = end; | |
831 t->value = TOKeof; | |
832 return; | |
833 | |
834 default: | |
835 if (c & 0x80) | |
836 { unsigned u = decodeUTF(); | |
837 if (u == PS || u == LS) | |
838 break; | |
839 } | |
840 continue; | |
841 } | |
842 break; | |
843 } | |
844 | |
845 if (commentToken) | |
846 { | |
847 p++; | |
848 loc.linnum++; | |
849 t->value = TOKcomment; | |
850 return; | |
851 } | |
852 if (doDocComment && t->ptr[2] == '/') | |
853 getDocComment(t, lastLine == linnum); | |
854 | |
855 p++; | |
856 loc.linnum++; | |
857 continue; | |
858 | |
859 case '+': | |
860 { int nest; | |
861 | |
862 linnum = loc.linnum; | |
863 p++; | |
864 nest = 1; | |
865 while (1) | |
866 { unsigned char c = *p; | |
867 switch (c) | |
868 { | |
869 case '/': | |
870 p++; | |
871 if (*p == '+') | |
872 { | |
873 p++; | |
874 nest++; | |
875 } | |
876 continue; | |
877 | |
878 case '+': | |
879 p++; | |
880 if (*p == '/') | |
881 { | |
882 p++; | |
883 if (--nest == 0) | |
884 break; | |
885 } | |
886 continue; | |
887 | |
888 case '\r': | |
889 p++; | |
890 if (*p != '\n') | |
891 loc.linnum++; | |
892 continue; | |
893 | |
894 case '\n': | |
895 loc.linnum++; | |
896 p++; | |
897 continue; | |
898 | |
899 case 0: | |
900 case 0x1A: | |
901 error("unterminated /+ +/ comment"); | |
902 p = end; | |
903 t->value = TOKeof; | |
904 return; | |
905 | |
906 default: | |
907 if (c & 0x80) | |
908 { unsigned u = decodeUTF(); | |
909 if (u == PS || u == LS) | |
910 loc.linnum++; | |
911 } | |
912 p++; | |
913 continue; | |
914 } | |
915 break; | |
916 } | |
917 if (commentToken) | |
918 { | |
919 t->value = TOKcomment; | |
920 return; | |
921 } | |
922 if (doDocComment && t->ptr[2] == '+' && p - 4 != t->ptr) | |
923 { // if /++ but not /++/ | |
924 getDocComment(t, lastLine == linnum); | |
925 } | |
926 continue; | |
927 } | |
928 } | |
929 t->value = TOKdiv; | |
930 return; | |
931 | |
932 case '.': | |
933 p++; | |
934 if (isdigit(*p)) | |
935 { /* Note that we don't allow ._1 and ._ as being | |
936 * valid floating point numbers. | |
937 */ | |
938 p--; | |
939 t->value = inreal(t); | |
940 } | |
941 else if (p[0] == '.') | |
942 { | |
943 if (p[1] == '.') | |
944 { p += 2; | |
945 t->value = TOKdotdotdot; | |
946 } | |
947 else | |
948 { p++; | |
949 t->value = TOKslice; | |
950 } | |
951 } | |
952 else | |
953 t->value = TOKdot; | |
954 return; | |
955 | |
956 case '&': | |
957 p++; | |
958 if (*p == '=') | |
959 { p++; | |
960 t->value = TOKandass; | |
961 } | |
962 else if (*p == '&') | |
963 { p++; | |
964 t->value = TOKandand; | |
965 } | |
966 else | |
967 t->value = TOKand; | |
968 return; | |
969 | |
970 case '|': | |
971 p++; | |
972 if (*p == '=') | |
973 { p++; | |
974 t->value = TOKorass; | |
975 } | |
976 else if (*p == '|') | |
977 { p++; | |
978 t->value = TOKoror; | |
979 } | |
980 else | |
981 t->value = TOKor; | |
982 return; | |
983 | |
984 case '-': | |
985 p++; | |
986 if (*p == '=') | |
987 { p++; | |
988 t->value = TOKminass; | |
989 } | |
990 #if 0 | |
991 else if (*p == '>') | |
992 { p++; | |
993 t->value = TOKarrow; | |
994 } | |
995 #endif | |
996 else if (*p == '-') | |
997 { p++; | |
998 t->value = TOKminusminus; | |
999 } | |
1000 else | |
1001 t->value = TOKmin; | |
1002 return; | |
1003 | |
1004 case '+': | |
1005 p++; | |
1006 if (*p == '=') | |
1007 { p++; | |
1008 t->value = TOKaddass; | |
1009 } | |
1010 else if (*p == '+') | |
1011 { p++; | |
1012 t->value = TOKplusplus; | |
1013 } | |
1014 else | |
1015 t->value = TOKadd; | |
1016 return; | |
1017 | |
1018 case '<': | |
1019 p++; | |
1020 if (*p == '=') | |
1021 { p++; | |
1022 t->value = TOKle; // <= | |
1023 } | |
1024 else if (*p == '<') | |
1025 { p++; | |
1026 if (*p == '=') | |
1027 { p++; | |
1028 t->value = TOKshlass; // <<= | |
1029 } | |
1030 else | |
1031 t->value = TOKshl; // << | |
1032 } | |
1033 else if (*p == '>') | |
1034 { p++; | |
1035 if (*p == '=') | |
1036 { p++; | |
1037 t->value = TOKleg; // <>= | |
1038 } | |
1039 else | |
1040 t->value = TOKlg; // <> | |
1041 } | |
1042 else | |
1043 t->value = TOKlt; // < | |
1044 return; | |
1045 | |
1046 case '>': | |
1047 p++; | |
1048 if (*p == '=') | |
1049 { p++; | |
1050 t->value = TOKge; // >= | |
1051 } | |
1052 else if (*p == '>') | |
1053 { p++; | |
1054 if (*p == '=') | |
1055 { p++; | |
1056 t->value = TOKshrass; // >>= | |
1057 } | |
1058 else if (*p == '>') | |
1059 { p++; | |
1060 if (*p == '=') | |
1061 { p++; | |
1062 t->value = TOKushrass; // >>>= | |
1063 } | |
1064 else | |
1065 t->value = TOKushr; // >>> | |
1066 } | |
1067 else | |
1068 t->value = TOKshr; // >> | |
1069 } | |
1070 else | |
1071 t->value = TOKgt; // > | |
1072 return; | |
1073 | |
1074 case '!': | |
1075 p++; | |
1076 if (*p == '=') | |
1077 { p++; | |
1078 if (*p == '=' && global.params.Dversion == 1) | |
1079 { p++; | |
1080 t->value = TOKnotidentity; // !== | |
1081 } | |
1082 else | |
1083 t->value = TOKnotequal; // != | |
1084 } | |
1085 else if (*p == '<') | |
1086 { p++; | |
1087 if (*p == '>') | |
1088 { p++; | |
1089 if (*p == '=') | |
1090 { p++; | |
1091 t->value = TOKunord; // !<>= | |
1092 } | |
1093 else | |
1094 t->value = TOKue; // !<> | |
1095 } | |
1096 else if (*p == '=') | |
1097 { p++; | |
1098 t->value = TOKug; // !<= | |
1099 } | |
1100 else | |
1101 t->value = TOKuge; // !< | |
1102 } | |
1103 else if (*p == '>') | |
1104 { p++; | |
1105 if (*p == '=') | |
1106 { p++; | |
1107 t->value = TOKul; // !>= | |
1108 } | |
1109 else | |
1110 t->value = TOKule; // !> | |
1111 } | |
1112 else | |
1113 t->value = TOKnot; // ! | |
1114 return; | |
1115 | |
1116 case '=': | |
1117 p++; | |
1118 if (*p == '=') | |
1119 { p++; | |
1120 if (*p == '=' && global.params.Dversion == 1) | |
1121 { p++; | |
1122 t->value = TOKidentity; // === | |
1123 } | |
1124 else | |
1125 t->value = TOKequal; // == | |
1126 } | |
1127 else | |
1128 t->value = TOKassign; // = | |
1129 return; | |
1130 | |
1131 case '~': | |
1132 p++; | |
1133 if (*p == '=') | |
1134 { p++; | |
1135 t->value = TOKcatass; // ~= | |
1136 } | |
1137 else | |
1138 t->value = TOKtilde; // ~ | |
1139 return; | |
1140 | |
1141 #define SINGLE(c,tok) case c: p++; t->value = tok; return; | |
1142 | |
1143 SINGLE('(', TOKlparen) | |
1144 SINGLE(')', TOKrparen) | |
1145 SINGLE('[', TOKlbracket) | |
1146 SINGLE(']', TOKrbracket) | |
1147 SINGLE('{', TOKlcurly) | |
1148 SINGLE('}', TOKrcurly) | |
1149 SINGLE('?', TOKquestion) | |
1150 SINGLE(',', TOKcomma) | |
1151 SINGLE(';', TOKsemicolon) | |
1152 SINGLE(':', TOKcolon) | |
1153 SINGLE('$', TOKdollar) | |
1154 | |
1155 #undef SINGLE | |
1156 | |
1157 #define DOUBLE(c1,tok1,c2,tok2) \ | |
1158 case c1: \ | |
1159 p++; \ | |
1160 if (*p == c2) \ | |
1161 { p++; \ | |
1162 t->value = tok2; \ | |
1163 } \ | |
1164 else \ | |
1165 t->value = tok1; \ | |
1166 return; | |
1167 | |
1168 DOUBLE('*', TOKmul, '=', TOKmulass) | |
1169 DOUBLE('%', TOKmod, '=', TOKmodass) | |
1170 DOUBLE('^', TOKxor, '=', TOKxorass) | |
1171 | |
1172 #undef DOUBLE | |
1173 | |
1174 case '#': | |
1175 p++; | |
1176 pragma(); | |
1177 continue; | |
1178 | |
1179 default: | |
1180 { unsigned char c = *p; | |
1181 | |
1182 if (c & 0x80) | |
1183 { unsigned u = decodeUTF(); | |
1184 | |
1185 // Check for start of unicode identifier | |
1186 if (isUniAlpha(u)) | |
1187 goto case_ident; | |
1188 | |
1189 if (u == PS || u == LS) | |
1190 { | |
1191 loc.linnum++; | |
1192 p++; | |
1193 continue; | |
1194 } | |
1195 } | |
1196 if (isprint(c)) | |
1197 error("unsupported char '%c'", c); | |
1198 else | |
1199 error("unsupported char 0x%02x", c); | |
1200 p++; | |
1201 continue; | |
1202 } | |
1203 } | |
1204 } | |
1205 } | |
1206 | |
1207 /******************************************* | |
1208 * Parse escape sequence. | |
1209 */ | |
1210 | |
1211 unsigned Lexer::escapeSequence() | |
1212 { unsigned c; | |
1213 int n; | |
1214 int ndigits; | |
1215 | |
1216 c = *p; | |
1217 switch (c) | |
1218 { | |
1219 case '\'': | |
1220 case '"': | |
1221 case '?': | |
1222 case '\\': | |
1223 Lconsume: | |
1224 p++; | |
1225 break; | |
1226 | |
1227 case 'a': c = 7; goto Lconsume; | |
1228 case 'b': c = 8; goto Lconsume; | |
1229 case 'f': c = 12; goto Lconsume; | |
1230 case 'n': c = 10; goto Lconsume; | |
1231 case 'r': c = 13; goto Lconsume; | |
1232 case 't': c = 9; goto Lconsume; | |
1233 case 'v': c = 11; goto Lconsume; | |
1234 | |
1235 case 'u': | |
1236 ndigits = 4; | |
1237 goto Lhex; | |
1238 case 'U': | |
1239 ndigits = 8; | |
1240 goto Lhex; | |
1241 case 'x': | |
1242 ndigits = 2; | |
1243 Lhex: | |
1244 p++; | |
1245 c = *p; | |
1246 if (ishex(c)) | |
1247 { unsigned v; | |
1248 | |
1249 n = 0; | |
1250 v = 0; | |
1251 while (1) | |
1252 { | |
1253 if (isdigit(c)) | |
1254 c -= '0'; | |
1255 else if (islower(c)) | |
1256 c -= 'a' - 10; | |
1257 else | |
1258 c -= 'A' - 10; | |
1259 v = v * 16 + c; | |
1260 c = *++p; | |
1261 if (++n == ndigits) | |
1262 break; | |
1263 if (!ishex(c)) | |
1264 { error("escape hex sequence has %d hex digits instead of %d", n, ndigits); | |
1265 break; | |
1266 } | |
1267 } | |
1268 if (ndigits != 2 && !utf_isValidDchar(v)) | |
1269 error("invalid UTF character \\U%08x", v); | |
1270 c = v; | |
1271 } | |
1272 else | |
1273 error("undefined escape hex sequence \\%c\n",c); | |
1274 break; | |
1275 | |
1276 case '&': // named character entity | |
1277 for (unsigned char *idstart = ++p; 1; p++) | |
1278 { | |
1279 switch (*p) | |
1280 { | |
1281 case ';': | |
1282 c = HtmlNamedEntity(idstart, p - idstart); | |
1283 if (c == ~0) | |
1284 { error("unnamed character entity &%.*s;", (int)(p - idstart), idstart); | |
1285 c = ' '; | |
1286 } | |
1287 p++; | |
1288 break; | |
1289 | |
1290 default: | |
1291 if (isalpha(*p) || | |
1292 (p != idstart + 1 && isdigit(*p))) | |
1293 continue; | |
1294 error("unterminated named entity"); | |
1295 break; | |
1296 } | |
1297 break; | |
1298 } | |
1299 break; | |
1300 | |
1301 case 0: | |
1302 case 0x1A: // end of file | |
1303 c = '\\'; | |
1304 break; | |
1305 | |
1306 default: | |
1307 if (isoctal(c)) | |
1308 { unsigned v; | |
1309 | |
1310 n = 0; | |
1311 v = 0; | |
1312 do | |
1313 { | |
1314 v = v * 8 + (c - '0'); | |
1315 c = *++p; | |
1316 } while (++n < 3 && isoctal(c)); | |
1317 c = v; | |
1318 if (c > 0xFF) | |
1319 error("0%03o is larger than a byte", c); | |
1320 } | |
1321 else | |
1322 error("undefined escape sequence \\%c\n",c); | |
1323 break; | |
1324 } | |
1325 return c; | |
1326 } | |
1327 | |
1328 /************************************** | |
1329 */ | |
1330 | |
1331 TOK Lexer::wysiwygStringConstant(Token *t, int tc) | |
1332 { unsigned c; | |
1333 Loc start = loc; | |
1334 | |
1335 p++; | |
1336 stringbuffer.reset(); | |
1337 while (1) | |
1338 { | |
1339 c = *p++; | |
1340 switch (c) | |
1341 { | |
1342 case '\n': | |
1343 loc.linnum++; | |
1344 break; | |
1345 | |
1346 case '\r': | |
1347 if (*p == '\n') | |
1348 continue; // ignore | |
1349 c = '\n'; // treat EndOfLine as \n character | |
1350 loc.linnum++; | |
1351 break; | |
1352 | |
1353 case 0: | |
1354 case 0x1A: | |
1355 error("unterminated string constant starting at %s", start.toChars()); | |
1356 t->ustring = (unsigned char *)""; | |
1357 t->len = 0; | |
1358 t->postfix = 0; | |
1359 return TOKstring; | |
1360 | |
1361 case '"': | |
1362 case '`': | |
1363 if (c == tc) | |
1364 { | |
1365 t->len = stringbuffer.offset; | |
1366 stringbuffer.writeByte(0); | |
1367 t->ustring = (unsigned char *)mem.malloc(stringbuffer.offset); | |
1368 memcpy(t->ustring, stringbuffer.data, stringbuffer.offset); | |
1369 stringPostfix(t); | |
1370 return TOKstring; | |
1371 } | |
1372 break; | |
1373 | |
1374 default: | |
1375 if (c & 0x80) | |
1376 { p--; | |
1377 unsigned u = decodeUTF(); | |
1378 p++; | |
1379 if (u == PS || u == LS) | |
1380 loc.linnum++; | |
1381 stringbuffer.writeUTF8(u); | |
1382 continue; | |
1383 } | |
1384 break; | |
1385 } | |
1386 stringbuffer.writeByte(c); | |
1387 } | |
1388 } | |
1389 | |
1390 /************************************** | |
1391 * Lex hex strings: | |
1392 * x"0A ae 34FE BD" | |
1393 */ | |
1394 | |
1395 TOK Lexer::hexStringConstant(Token *t) | |
1396 { unsigned c; | |
1397 Loc start = loc; | |
1398 unsigned n = 0; | |
1399 unsigned v; | |
1400 | |
1401 p++; | |
1402 stringbuffer.reset(); | |
1403 while (1) | |
1404 { | |
1405 c = *p++; | |
1406 switch (c) | |
1407 { | |
1408 case ' ': | |
1409 case '\t': | |
1410 case '\v': | |
1411 case '\f': | |
1412 continue; // skip white space | |
1413 | |
1414 case '\r': | |
1415 if (*p == '\n') | |
1416 continue; // ignore | |
1417 // Treat isolated '\r' as if it were a '\n' | |
1418 case '\n': | |
1419 loc.linnum++; | |
1420 continue; | |
1421 | |
1422 case 0: | |
1423 case 0x1A: | |
1424 error("unterminated string constant starting at %s", start.toChars()); | |
1425 t->ustring = (unsigned char *)""; | |
1426 t->len = 0; | |
1427 t->postfix = 0; | |
1428 return TOKstring; | |
1429 | |
1430 case '"': | |
1431 if (n & 1) | |
1432 { error("odd number (%d) of hex characters in hex string", n); | |
1433 stringbuffer.writeByte(v); | |
1434 } | |
1435 t->len = stringbuffer.offset; | |
1436 stringbuffer.writeByte(0); | |
1437 t->ustring = (unsigned char *)mem.malloc(stringbuffer.offset); | |
1438 memcpy(t->ustring, stringbuffer.data, stringbuffer.offset); | |
1439 stringPostfix(t); | |
1440 return TOKstring; | |
1441 | |
1442 default: | |
1443 if (c >= '0' && c <= '9') | |
1444 c -= '0'; | |
1445 else if (c >= 'a' && c <= 'f') | |
1446 c -= 'a' - 10; | |
1447 else if (c >= 'A' && c <= 'F') | |
1448 c -= 'A' - 10; | |
1449 else if (c & 0x80) | |
1450 { p--; | |
1451 unsigned u = decodeUTF(); | |
1452 p++; | |
1453 if (u == PS || u == LS) | |
1454 loc.linnum++; | |
1455 else | |
1456 error("non-hex character \\u%x", u); | |
1457 } | |
1458 else | |
1459 error("non-hex character '%c'", c); | |
1460 if (n & 1) | |
1461 { v = (v << 4) | c; | |
1462 stringbuffer.writeByte(v); | |
1463 } | |
1464 else | |
1465 v = c; | |
1466 n++; | |
1467 break; | |
1468 } | |
1469 } | |
1470 } | |
1471 | |
1472 | |
336 | 1473 #if DMDV2 |
159 | 1474 /************************************** |
1475 * Lex delimited strings: | |
1476 * q"(foo(xxx))" // "foo(xxx)" | |
1477 * q"[foo(]" // "foo(" | |
1478 * q"/foo]/" // "foo]" | |
1479 * q"HERE | |
1480 * foo | |
1481 * HERE" // "foo\n" | |
1482 * Input: | |
1483 * p is on the " | |
1484 */ | |
1485 | |
1486 TOK Lexer::delimitedStringConstant(Token *t) | |
1487 { unsigned c; | |
1488 Loc start = loc; | |
1489 unsigned delimleft = 0; | |
1490 unsigned delimright = 0; | |
1491 unsigned nest = 1; | |
1492 unsigned nestcount; | |
1493 Identifier *hereid = NULL; | |
1494 unsigned blankrol = 0; | |
1495 unsigned startline = 0; | |
1496 | |
1497 p++; | |
1498 stringbuffer.reset(); | |
1499 while (1) | |
1500 { | |
1501 c = *p++; | |
1502 //printf("c = '%c'\n", c); | |
1503 switch (c) | |
1504 { | |
1505 case '\n': | |
1506 Lnextline: | |
1507 loc.linnum++; | |
1508 startline = 1; | |
1509 if (blankrol) | |
1510 { blankrol = 0; | |
1511 continue; | |
1512 } | |
1513 if (hereid) | |
1514 { | |
1515 stringbuffer.writeUTF8(c); | |
1516 continue; | |
1517 } | |
1518 break; | |
1519 | |
1520 case '\r': | |
1521 if (*p == '\n') | |
1522 continue; // ignore | |
1523 c = '\n'; // treat EndOfLine as \n character | |
1524 goto Lnextline; | |
1525 | |
1526 case 0: | |
1527 case 0x1A: | |
1528 goto Lerror; | |
1529 | |
1530 default: | |
1531 if (c & 0x80) | |
1532 { p--; | |
1533 c = decodeUTF(); | |
1534 p++; | |
1535 if (c == PS || c == LS) | |
1536 goto Lnextline; | |
1537 } | |
1538 break; | |
1539 } | |
1540 if (delimleft == 0) | |
1541 { delimleft = c; | |
1542 nest = 1; | |
1543 nestcount = 1; | |
1544 if (c == '(') | |
1545 delimright = ')'; | |
1546 else if (c == '{') | |
1547 delimright = '}'; | |
1548 else if (c == '[') | |
1549 delimright = ']'; | |
1550 else if (c == '<') | |
1551 delimright = '>'; | |
1552 else if (isalpha(c) || c == '_' || (c >= 0x80 && isUniAlpha(c))) | |
1553 { // Start of identifier; must be a heredoc | |
1554 Token t; | |
1555 p--; | |
1556 scan(&t); // read in heredoc identifier | |
1557 if (t.value != TOKidentifier) | |
1558 { error("identifier expected for heredoc, not %s", t.toChars()); | |
1559 delimright = c; | |
1560 } | |
1561 else | |
1562 { hereid = t.ident; | |
1563 //printf("hereid = '%s'\n", hereid->toChars()); | |
1564 blankrol = 1; | |
1565 } | |
1566 nest = 0; | |
1567 } | |
1568 else | |
1569 { delimright = c; | |
1570 nest = 0; | |
1571 } | |
1572 } | |
1573 else | |
1574 { | |
1575 if (blankrol) | |
1576 { error("heredoc rest of line should be blank"); | |
1577 blankrol = 0; | |
1578 continue; | |
1579 } | |
1580 if (nest == 1) | |
1581 { | |
1582 if (c == delimleft) | |
1583 nestcount++; | |
1584 else if (c == delimright) | |
1585 { nestcount--; | |
1586 if (nestcount == 0) | |
1587 goto Ldone; | |
1588 } | |
1589 } | |
1590 else if (c == delimright) | |
1591 goto Ldone; | |
1592 if (startline && isalpha(c)) | |
1593 { Token t; | |
1594 unsigned char *psave = p; | |
1595 p--; | |
1596 scan(&t); // read in possible heredoc identifier | |
1597 //printf("endid = '%s'\n", t.ident->toChars()); | |
1598 if (t.value == TOKidentifier && t.ident->equals(hereid)) | |
1599 { /* should check that rest of line is blank | |
1600 */ | |
1601 goto Ldone; | |
1602 } | |
1603 p = psave; | |
1604 } | |
1605 stringbuffer.writeUTF8(c); | |
1606 startline = 0; | |
1607 } | |
1608 } | |
1609 | |
1610 Ldone: | |
1611 if (*p == '"') | |
1612 p++; | |
1613 else | |
1614 error("delimited string must end in %c\"", delimright); | |
1615 t->len = stringbuffer.offset; | |
1616 stringbuffer.writeByte(0); | |
1617 t->ustring = (unsigned char *)mem.malloc(stringbuffer.offset); | |
1618 memcpy(t->ustring, stringbuffer.data, stringbuffer.offset); | |
1619 stringPostfix(t); | |
1620 return TOKstring; | |
1621 | |
1622 Lerror: | |
1623 error("unterminated string constant starting at %s", start.toChars()); | |
1624 t->ustring = (unsigned char *)""; | |
1625 t->len = 0; | |
1626 t->postfix = 0; | |
1627 return TOKstring; | |
1628 } | |
1629 | |
1630 /************************************** | |
1631 * Lex delimited strings: | |
1632 * q{ foo(xxx) } // " foo(xxx) " | |
1633 * q{foo(} // "foo(" | |
1634 * q{{foo}"}"} // "{foo}"}"" | |
1635 * Input: | |
1636 * p is on the q | |
1637 */ | |
1638 | |
1639 TOK Lexer::tokenStringConstant(Token *t) | |
1640 { | |
1641 unsigned nest = 1; | |
1642 Loc start = loc; | |
1643 unsigned char *pstart = ++p; | |
1644 | |
1645 while (1) | |
1646 { Token tok; | |
1647 | |
1648 scan(&tok); | |
1649 switch (tok.value) | |
1650 { | |
1651 case TOKlcurly: | |
1652 nest++; | |
1653 continue; | |
1654 | |
1655 case TOKrcurly: | |
1656 if (--nest == 0) | |
1657 goto Ldone; | |
1658 continue; | |
1659 | |
1660 case TOKeof: | |
1661 goto Lerror; | |
1662 | |
1663 default: | |
1664 continue; | |
1665 } | |
1666 } | |
1667 | |
1668 Ldone: | |
1669 t->len = p - 1 - pstart; | |
1670 t->ustring = (unsigned char *)mem.malloc(t->len + 1); | |
1671 memcpy(t->ustring, pstart, t->len); | |
1672 t->ustring[t->len] = 0; | |
1673 stringPostfix(t); | |
1674 return TOKstring; | |
1675 | |
1676 Lerror: | |
1677 error("unterminated token string constant starting at %s", start.toChars()); | |
1678 t->ustring = (unsigned char *)""; | |
1679 t->len = 0; | |
1680 t->postfix = 0; | |
1681 return TOKstring; | |
1682 } | |
1683 | |
1684 #endif | |
1685 | |
1686 | |
1687 /************************************** | |
1688 */ | |
1689 | |
1690 TOK Lexer::escapeStringConstant(Token *t, int wide) | |
1691 { unsigned c; | |
1692 Loc start = loc; | |
1693 | |
1694 p++; | |
1695 stringbuffer.reset(); | |
1696 while (1) | |
1697 { | |
1698 c = *p++; | |
1699 switch (c) | |
1700 { | |
1701 case '\\': | |
1702 switch (*p) | |
1703 { | |
1704 case 'u': | |
1705 case 'U': | |
1706 case '&': | |
1707 c = escapeSequence(); | |
1708 stringbuffer.writeUTF8(c); | |
1709 continue; | |
1710 | |
1711 default: | |
1712 c = escapeSequence(); | |
1713 break; | |
1714 } | |
1715 break; | |
1716 | |
1717 case '\n': | |
1718 loc.linnum++; | |
1719 break; | |
1720 | |
1721 case '\r': | |
1722 if (*p == '\n') | |
1723 continue; // ignore | |
1724 c = '\n'; // treat EndOfLine as \n character | |
1725 loc.linnum++; | |
1726 break; | |
1727 | |
1728 case '"': | |
1729 t->len = stringbuffer.offset; | |
1730 stringbuffer.writeByte(0); | |
1731 t->ustring = (unsigned char *)mem.malloc(stringbuffer.offset); | |
1732 memcpy(t->ustring, stringbuffer.data, stringbuffer.offset); | |
1733 stringPostfix(t); | |
1734 return TOKstring; | |
1735 | |
1736 case 0: | |
1737 case 0x1A: | |
1738 p--; | |
1739 error("unterminated string constant starting at %s", start.toChars()); | |
1740 t->ustring = (unsigned char *)""; | |
1741 t->len = 0; | |
1742 t->postfix = 0; | |
1743 return TOKstring; | |
1744 | |
1745 default: | |
1746 if (c & 0x80) | |
1747 { | |
1748 p--; | |
1749 c = decodeUTF(); | |
1750 if (c == LS || c == PS) | |
1751 { c = '\n'; | |
1752 loc.linnum++; | |
1753 } | |
1754 p++; | |
1755 stringbuffer.writeUTF8(c); | |
1756 continue; | |
1757 } | |
1758 break; | |
1759 } | |
1760 stringbuffer.writeByte(c); | |
1761 } | |
1762 } | |
1763 | |
1764 /************************************** | |
1765 */ | |
1766 | |
1767 TOK Lexer::charConstant(Token *t, int wide) | |
1768 { | |
1769 unsigned c; | |
1770 TOK tk = TOKcharv; | |
1771 | |
1772 //printf("Lexer::charConstant\n"); | |
1773 p++; | |
1774 c = *p++; | |
1775 switch (c) | |
1776 { | |
1777 case '\\': | |
1778 switch (*p) | |
1779 { | |
1780 case 'u': | |
1781 t->uns64value = escapeSequence(); | |
1782 tk = TOKwcharv; | |
1783 break; | |
1784 | |
1785 case 'U': | |
1786 case '&': | |
1787 t->uns64value = escapeSequence(); | |
1788 tk = TOKdcharv; | |
1789 break; | |
1790 | |
1791 default: | |
1792 t->uns64value = escapeSequence(); | |
1793 break; | |
1794 } | |
1795 break; | |
1796 | |
1797 case '\n': | |
1798 L1: | |
1799 loc.linnum++; | |
1800 case '\r': | |
1801 case 0: | |
1802 case 0x1A: | |
1803 case '\'': | |
1804 error("unterminated character constant"); | |
1805 return tk; | |
1806 | |
1807 default: | |
1808 if (c & 0x80) | |
1809 { | |
1810 p--; | |
1811 c = decodeUTF(); | |
1812 p++; | |
1813 if (c == LS || c == PS) | |
1814 goto L1; | |
1815 if (c < 0xD800 || (c >= 0xE000 && c < 0xFFFE)) | |
1816 tk = TOKwcharv; | |
1817 else | |
1818 tk = TOKdcharv; | |
1819 } | |
1820 t->uns64value = c; | |
1821 break; | |
1822 } | |
1823 | |
1824 if (*p != '\'') | |
1825 { error("unterminated character constant"); | |
1826 return tk; | |
1827 } | |
1828 p++; | |
1829 return tk; | |
1830 } | |
1831 | |
1832 /*************************************** | |
1833 * Get postfix of string literal. | |
1834 */ | |
1835 | |
1836 void Lexer::stringPostfix(Token *t) | |
1837 { | |
1838 switch (*p) | |
1839 { | |
1840 case 'c': | |
1841 case 'w': | |
1842 case 'd': | |
1843 t->postfix = *p; | |
1844 p++; | |
1845 break; | |
1846 | |
1847 default: | |
1848 t->postfix = 0; | |
1849 break; | |
1850 } | |
1851 } | |
1852 | |
1853 /*************************************** | |
1854 * Read \u or \U unicode sequence | |
1855 * Input: | |
1856 * u 'u' or 'U' | |
1857 */ | |
1858 | |
1859 #if 0 | |
1860 unsigned Lexer::wchar(unsigned u) | |
1861 { | |
1862 unsigned value; | |
1863 unsigned n; | |
1864 unsigned char c; | |
1865 unsigned nchars; | |
1866 | |
1867 nchars = (u == 'U') ? 8 : 4; | |
1868 value = 0; | |
1869 for (n = 0; 1; n++) | |
1870 { | |
1871 ++p; | |
1872 if (n == nchars) | |
1873 break; | |
1874 c = *p; | |
1875 if (!ishex(c)) | |
1876 { error("\\%c sequence must be followed by %d hex characters", u, nchars); | |
1877 break; | |
1878 } | |
1879 if (isdigit(c)) | |
1880 c -= '0'; | |
1881 else if (islower(c)) | |
1882 c -= 'a' - 10; | |
1883 else | |
1884 c -= 'A' - 10; | |
1885 value <<= 4; | |
1886 value |= c; | |
1887 } | |
1888 return value; | |
1889 } | |
1890 #endif | |
1891 | |
1892 /************************************** | |
1893 * Read in a number. | |
1894 * If it's an integer, store it in tok.TKutok.Vlong. | |
1895 * integers can be decimal, octal or hex | |
1896 * Handle the suffixes U, UL, LU, L, etc. | |
1897 * If it's double, store it in tok.TKutok.Vdouble. | |
1898 * Returns: | |
1899 * TKnum | |
1900 * TKdouble,... | |
1901 */ | |
1902 | |
1903 TOK Lexer::number(Token *t) | |
1904 { | |
1905 // We use a state machine to collect numbers | |
1906 enum STATE { STATE_initial, STATE_0, STATE_decimal, STATE_octal, STATE_octale, | |
1907 STATE_hex, STATE_binary, STATE_hex0, STATE_binary0, | |
1908 STATE_hexh, STATE_error }; | |
1909 enum STATE state; | |
1910 | |
1911 enum FLAGS | |
1912 { FLAGS_decimal = 1, // decimal | |
1913 FLAGS_unsigned = 2, // u or U suffix | |
1914 FLAGS_long = 4, // l or L suffix | |
1915 }; | |
1916 enum FLAGS flags = FLAGS_decimal; | |
1917 | |
1918 int i; | |
1919 int base; | |
1920 unsigned c; | |
1921 unsigned char *start; | |
1922 TOK result; | |
1923 | |
1924 //printf("Lexer::number()\n"); | |
1925 state = STATE_initial; | |
1926 base = 0; | |
1927 stringbuffer.reset(); | |
1928 start = p; | |
1929 while (1) | |
1930 { | |
1931 c = *p; | |
1932 switch (state) | |
1933 { | |
1934 case STATE_initial: // opening state | |
1935 if (c == '0') | |
1936 state = STATE_0; | |
1937 else | |
1938 state = STATE_decimal; | |
1939 break; | |
1940 | |
1941 case STATE_0: | |
1942 flags = (FLAGS) (flags & ~FLAGS_decimal); | |
1943 switch (c) | |
1944 { | |
1945 #if ZEROH | |
1946 case 'H': // 0h | |
1947 case 'h': | |
1948 goto hexh; | |
1949 #endif | |
1950 case 'X': | |
1951 case 'x': | |
1952 state = STATE_hex0; | |
1953 break; | |
1954 | |
1955 case '.': | |
1956 if (p[1] == '.') // .. is a separate token | |
1957 goto done; | |
1958 case 'i': | |
1959 case 'f': | |
1960 case 'F': | |
1961 goto real; | |
1962 #if ZEROH | |
1963 case 'E': | |
1964 case 'e': | |
1965 goto case_hex; | |
1966 #endif | |
1967 case 'B': | |
1968 case 'b': | |
1969 state = STATE_binary0; | |
1970 break; | |
1971 | |
1972 case '0': case '1': case '2': case '3': | |
1973 case '4': case '5': case '6': case '7': | |
1974 state = STATE_octal; | |
1975 break; | |
1976 | |
1977 #if ZEROH | |
1978 case '8': case '9': case 'A': | |
1979 case 'C': case 'D': case 'F': | |
1980 case 'a': case 'c': case 'd': case 'f': | |
1981 case_hex: | |
1982 state = STATE_hexh; | |
1983 break; | |
1984 #endif | |
1985 case '_': | |
1986 state = STATE_octal; | |
1987 p++; | |
1988 continue; | |
1989 | |
1990 case 'L': | |
1991 if (p[1] == 'i') | |
1992 goto real; | |
1993 goto done; | |
1994 | |
1995 default: | |
1996 goto done; | |
1997 } | |
1998 break; | |
1999 | |
2000 case STATE_decimal: // reading decimal number | |
2001 if (!isdigit(c)) | |
2002 { | |
2003 #if ZEROH | |
2004 if (ishex(c) | |
2005 || c == 'H' || c == 'h' | |
2006 ) | |
2007 goto hexh; | |
2008 #endif | |
2009 if (c == '_') // ignore embedded _ | |
2010 { p++; | |
2011 continue; | |
2012 } | |
2013 if (c == '.' && p[1] != '.') | |
2014 goto real; | |
2015 else if (c == 'i' || c == 'f' || c == 'F' || | |
2016 c == 'e' || c == 'E') | |
2017 { | |
2018 real: // It's a real number. Back up and rescan as a real | |
2019 p = start; | |
2020 return inreal(t); | |
2021 } | |
2022 else if (c == 'L' && p[1] == 'i') | |
2023 goto real; | |
2024 goto done; | |
2025 } | |
2026 break; | |
2027 | |
2028 case STATE_hex0: // reading hex number | |
2029 case STATE_hex: | |
2030 if (!ishex(c)) | |
2031 { | |
2032 if (c == '_') // ignore embedded _ | |
2033 { p++; | |
2034 continue; | |
2035 } | |
2036 if (c == '.' && p[1] != '.') | |
2037 goto real; | |
2038 if (c == 'P' || c == 'p' || c == 'i') | |
2039 goto real; | |
2040 if (state == STATE_hex0) | |
2041 error("Hex digit expected, not '%c'", c); | |
2042 goto done; | |
2043 } | |
2044 state = STATE_hex; | |
2045 break; | |
2046 | |
2047 #if ZEROH | |
2048 hexh: | |
2049 state = STATE_hexh; | |
2050 case STATE_hexh: // parse numbers like 0FFh | |
2051 if (!ishex(c)) | |
2052 { | |
2053 if (c == 'H' || c == 'h') | |
2054 { | |
2055 p++; | |
2056 base = 16; | |
2057 goto done; | |
2058 } | |
2059 else | |
2060 { | |
2061 // Check for something like 1E3 or 0E24 | |
2062 if (memchr((char *)stringbuffer.data, 'E', stringbuffer.offset) || | |
2063 memchr((char *)stringbuffer.data, 'e', stringbuffer.offset)) | |
2064 goto real; | |
2065 error("Hex digit expected, not '%c'", c); | |
2066 goto done; | |
2067 } | |
2068 } | |
2069 break; | |
2070 #endif | |
2071 | |
2072 case STATE_octal: // reading octal number | |
2073 case STATE_octale: // reading octal number with non-octal digits | |
2074 if (!isoctal(c)) | |
2075 { | |
2076 #if ZEROH | |
2077 if (ishex(c) | |
2078 || c == 'H' || c == 'h' | |
2079 ) | |
2080 goto hexh; | |
2081 #endif | |
2082 if (c == '_') // ignore embedded _ | |
2083 { p++; | |
2084 continue; | |
2085 } | |
2086 if (c == '.' && p[1] != '.') | |
2087 goto real; | |
2088 if (c == 'i') | |
2089 goto real; | |
2090 if (isdigit(c)) | |
2091 { | |
2092 state = STATE_octale; | |
2093 } | |
2094 else | |
2095 goto done; | |
2096 } | |
2097 break; | |
2098 | |
2099 case STATE_binary0: // starting binary number | |
2100 case STATE_binary: // reading binary number | |
2101 if (c != '0' && c != '1') | |
2102 { | |
2103 #if ZEROH | |
2104 if (ishex(c) | |
2105 || c == 'H' || c == 'h' | |
2106 ) | |
2107 goto hexh; | |
2108 #endif | |
2109 if (c == '_') // ignore embedded _ | |
2110 { p++; | |
2111 continue; | |
2112 } | |
2113 if (state == STATE_binary0) | |
2114 { error("binary digit expected"); | |
2115 state = STATE_error; | |
2116 break; | |
2117 } | |
2118 else | |
2119 goto done; | |
2120 } | |
2121 state = STATE_binary; | |
2122 break; | |
2123 | |
2124 case STATE_error: // for error recovery | |
2125 if (!isdigit(c)) // scan until non-digit | |
2126 goto done; | |
2127 break; | |
2128 | |
2129 default: | |
2130 assert(0); | |
2131 } | |
2132 stringbuffer.writeByte(c); | |
2133 p++; | |
2134 } | |
2135 done: | |
2136 stringbuffer.writeByte(0); // terminate string | |
2137 if (state == STATE_octale) | |
2138 error("Octal digit expected"); | |
2139 | |
2140 uinteger_t n; // unsigned >=64 bit integer type | |
2141 | |
2142 if (stringbuffer.offset == 2 && (state == STATE_decimal || state == STATE_0)) | |
2143 n = stringbuffer.data[0] - '0'; | |
2144 else | |
2145 { | |
2146 // Convert string to integer | |
2147 #if __DMC__ | |
2148 errno = 0; | |
2149 n = strtoull((char *)stringbuffer.data,NULL,base); | |
2150 if (errno == ERANGE) | |
2151 error("integer overflow"); | |
2152 #else | |
2153 // Not everybody implements strtoull() | |
2154 char *p = (char *)stringbuffer.data; | |
2155 int r = 10, d; | |
2156 | |
2157 if (*p == '0') | |
2158 { | |
2159 if (p[1] == 'x' || p[1] == 'X') | |
2160 p += 2, r = 16; | |
2161 else if (p[1] == 'b' || p[1] == 'B') | |
2162 p += 2, r = 2; | |
2163 else if (isdigit(p[1])) | |
2164 p += 1, r = 8; | |
2165 } | |
2166 | |
2167 n = 0; | |
2168 while (1) | |
2169 { | |
2170 if (*p >= '0' && *p <= '9') | |
2171 d = *p - '0'; | |
2172 else if (*p >= 'a' && *p <= 'z') | |
2173 d = *p - 'a' + 10; | |
2174 else if (*p >= 'A' && *p <= 'Z') | |
2175 d = *p - 'A' + 10; | |
2176 else | |
2177 break; | |
2178 if (d >= r) | |
2179 break; | |
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
366
diff
changeset
|
2180 uinteger_t n2 = n * r; |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
366
diff
changeset
|
2181 //printf("n2 / r = %llx, n = %llx\n", n2/r, n); |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
366
diff
changeset
|
2182 if (n2 / r != n || n2 + d < n) |
159 | 2183 { |
2184 error ("integer overflow"); | |
2185 break; | |
2186 } | |
2187 | |
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
366
diff
changeset
|
2188 n = n2 + d; |
159 | 2189 p++; |
2190 } | |
2191 #endif | |
2192 if (sizeof(n) > 8 && | |
2193 n > 0xFFFFFFFFFFFFFFFFULL) // if n needs more than 64 bits | |
2194 error("integer overflow"); | |
2195 } | |
2196 | |
2197 // Parse trailing 'u', 'U', 'l' or 'L' in any combination | |
2198 while (1) | |
2199 { unsigned char f; | |
2200 | |
2201 switch (*p) | |
2202 { case 'U': | |
2203 case 'u': | |
2204 f = FLAGS_unsigned; | |
2205 goto L1; | |
2206 | |
2207 case 'l': | |
2208 if (1 || !global.params.useDeprecated) | |
2209 error("'l' suffix is deprecated, use 'L' instead"); | |
2210 case 'L': | |
2211 f = FLAGS_long; | |
2212 L1: | |
2213 p++; | |
2214 if (flags & f) | |
2215 error("unrecognized token"); | |
2216 flags = (FLAGS) (flags | f); | |
2217 continue; | |
2218 default: | |
2219 break; | |
2220 } | |
2221 break; | |
2222 } | |
2223 | |
2224 switch (flags) | |
2225 { | |
2226 case 0: | |
2227 /* Octal or Hexadecimal constant. | |
2228 * First that fits: int, uint, long, ulong | |
2229 */ | |
2230 if (n & 0x8000000000000000LL) | |
2231 result = TOKuns64v; | |
2232 else if (n & 0xFFFFFFFF00000000LL) | |
2233 result = TOKint64v; | |
2234 else if (n & 0x80000000) | |
2235 result = TOKuns32v; | |
2236 else | |
2237 result = TOKint32v; | |
2238 break; | |
2239 | |
2240 case FLAGS_decimal: | |
2241 /* First that fits: int, long, long long | |
2242 */ | |
2243 if (n & 0x8000000000000000LL) | |
2244 { error("signed integer overflow"); | |
2245 result = TOKuns64v; | |
2246 } | |
2247 else if (n & 0xFFFFFFFF80000000LL) | |
2248 result = TOKint64v; | |
2249 else | |
2250 result = TOKint32v; | |
2251 break; | |
2252 | |
2253 case FLAGS_unsigned: | |
2254 case FLAGS_decimal | FLAGS_unsigned: | |
2255 /* First that fits: uint, ulong | |
2256 */ | |
2257 if (n & 0xFFFFFFFF00000000LL) | |
2258 result = TOKuns64v; | |
2259 else | |
2260 result = TOKuns32v; | |
2261 break; | |
2262 | |
2263 case FLAGS_decimal | FLAGS_long: | |
2264 if (n & 0x8000000000000000LL) | |
2265 { error("signed integer overflow"); | |
2266 result = TOKuns64v; | |
2267 } | |
2268 else | |
2269 result = TOKint64v; | |
2270 break; | |
2271 | |
2272 case FLAGS_long: | |
2273 if (n & 0x8000000000000000LL) | |
2274 result = TOKuns64v; | |
2275 else | |
2276 result = TOKint64v; | |
2277 break; | |
2278 | |
2279 case FLAGS_unsigned | FLAGS_long: | |
2280 case FLAGS_decimal | FLAGS_unsigned | FLAGS_long: | |
2281 result = TOKuns64v; | |
2282 break; | |
2283 | |
2284 default: | |
2285 #ifdef DEBUG | |
2286 printf("%x\n",flags); | |
2287 #endif | |
2288 assert(0); | |
2289 } | |
2290 t->uns64value = n; | |
2291 return result; | |
2292 } | |
2293 | |
2294 /************************************** | |
2295 * Read in characters, converting them to real. | |
2296 * Bugs: | |
2297 * Exponent overflow not detected. | |
2298 * Too much requested precision is not detected. | |
2299 */ | |
2300 | |
2301 TOK Lexer::inreal(Token *t) | |
2302 #ifdef __DMC__ | |
2303 __in | |
2304 { | |
2305 assert(*p == '.' || isdigit(*p)); | |
2306 } | |
2307 __out (result) | |
2308 { | |
2309 switch (result) | |
2310 { | |
2311 case TOKfloat32v: | |
2312 case TOKfloat64v: | |
2313 case TOKfloat80v: | |
2314 case TOKimaginary32v: | |
2315 case TOKimaginary64v: | |
2316 case TOKimaginary80v: | |
2317 break; | |
2318 | |
2319 default: | |
2320 assert(0); | |
2321 } | |
2322 } | |
2323 __body | |
2324 #endif /* __DMC__ */ | |
2325 { int dblstate; | |
2326 unsigned c; | |
2327 char hex; // is this a hexadecimal-floating-constant? | |
2328 TOK result; | |
2329 | |
2330 //printf("Lexer::inreal()\n"); | |
2331 stringbuffer.reset(); | |
2332 dblstate = 0; | |
2333 hex = 0; | |
2334 Lnext: | |
2335 while (1) | |
2336 { | |
2337 // Get next char from input | |
2338 c = *p++; | |
2339 //printf("dblstate = %d, c = '%c'\n", dblstate, c); | |
2340 while (1) | |
2341 { | |
2342 switch (dblstate) | |
2343 { | |
2344 case 0: // opening state | |
2345 if (c == '0') | |
2346 dblstate = 9; | |
2347 else if (c == '.') | |
2348 dblstate = 3; | |
2349 else | |
2350 dblstate = 1; | |
2351 break; | |
2352 | |
2353 case 9: | |
2354 dblstate = 1; | |
2355 if (c == 'X' || c == 'x') | |
2356 { hex++; | |
2357 break; | |
2358 } | |
2359 case 1: // digits to left of . | |
2360 case 3: // digits to right of . | |
2361 case 7: // continuing exponent digits | |
2362 if (!isdigit(c) && !(hex && isxdigit(c))) | |
2363 { | |
2364 if (c == '_') | |
2365 goto Lnext; // ignore embedded '_' | |
2366 dblstate++; | |
2367 continue; | |
2368 } | |
2369 break; | |
2370 | |
2371 case 2: // no more digits to left of . | |
2372 if (c == '.') | |
2373 { dblstate++; | |
2374 break; | |
2375 } | |
2376 case 4: // no more digits to right of . | |
2377 if ((c == 'E' || c == 'e') || | |
2378 hex && (c == 'P' || c == 'p')) | |
2379 { dblstate = 5; | |
2380 hex = 0; // exponent is always decimal | |
2381 break; | |
2382 } | |
2383 if (hex) | |
2384 error("binary-exponent-part required"); | |
2385 goto done; | |
2386 | |
2387 case 5: // looking immediately to right of E | |
2388 dblstate++; | |
2389 if (c == '-' || c == '+') | |
2390 break; | |
2391 case 6: // 1st exponent digit expected | |
2392 if (!isdigit(c)) | |
2393 error("exponent expected"); | |
2394 dblstate++; | |
2395 break; | |
2396 | |
2397 case 8: // past end of exponent digits | |
2398 goto done; | |
2399 } | |
2400 break; | |
2401 } | |
2402 stringbuffer.writeByte(c); | |
2403 } | |
2404 done: | |
2405 p--; | |
2406 | |
2407 stringbuffer.writeByte(0); | |
2408 | |
2409 #if _WIN32 && __DMC__ | |
2410 char *save = __locale_decpoint; | |
2411 __locale_decpoint = "."; | |
2412 #endif | |
2413 #ifdef IN_GCC | |
2414 t->float80value = real_t::parse((char *)stringbuffer.data, real_t::LongDouble); | |
2415 #else | |
2416 t->float80value = strtold((char *)stringbuffer.data, NULL); | |
2417 #endif | |
2418 errno = 0; | |
696
48f462341528
Fix issues with gradual underflow and strtof, strtod on Mac.
Christian Kamm <kamm incasoftware de>
parents:
664
diff
changeset
|
2419 float strtofres; |
48f462341528
Fix issues with gradual underflow and strtof, strtod on Mac.
Christian Kamm <kamm incasoftware de>
parents:
664
diff
changeset
|
2420 double strtodres; |
159 | 2421 switch (*p) |
2422 { | |
2423 case 'F': | |
2424 case 'f': | |
2425 #ifdef IN_GCC | |
2426 real_t::parse((char *)stringbuffer.data, real_t::Float); | |
2427 #else | |
696
48f462341528
Fix issues with gradual underflow and strtof, strtod on Mac.
Christian Kamm <kamm incasoftware de>
parents:
664
diff
changeset
|
2428 strtofres = strtof((char *)stringbuffer.data, NULL); |
48f462341528
Fix issues with gradual underflow and strtof, strtod on Mac.
Christian Kamm <kamm incasoftware de>
parents:
664
diff
changeset
|
2429 // LDC change: don't error on gradual underflow |
48f462341528
Fix issues with gradual underflow and strtof, strtod on Mac.
Christian Kamm <kamm incasoftware de>
parents:
664
diff
changeset
|
2430 if (errno == ERANGE && |
48f462341528
Fix issues with gradual underflow and strtof, strtod on Mac.
Christian Kamm <kamm incasoftware de>
parents:
664
diff
changeset
|
2431 strtofres != 0 && strtofres != HUGE_VALF && strtofres != -HUGE_VALF) |
48f462341528
Fix issues with gradual underflow and strtof, strtod on Mac.
Christian Kamm <kamm incasoftware de>
parents:
664
diff
changeset
|
2432 errno = 0; |
159 | 2433 #endif |
2434 result = TOKfloat32v; | |
2435 p++; | |
2436 break; | |
2437 | |
2438 default: | |
2439 #ifdef IN_GCC | |
2440 real_t::parse((char *)stringbuffer.data, real_t::Double); | |
2441 #else | |
696
48f462341528
Fix issues with gradual underflow and strtof, strtod on Mac.
Christian Kamm <kamm incasoftware de>
parents:
664
diff
changeset
|
2442 strtodres = strtod((char *)stringbuffer.data, NULL); |
48f462341528
Fix issues with gradual underflow and strtof, strtod on Mac.
Christian Kamm <kamm incasoftware de>
parents:
664
diff
changeset
|
2443 // LDC change: don't error on gradual underflow |
48f462341528
Fix issues with gradual underflow and strtof, strtod on Mac.
Christian Kamm <kamm incasoftware de>
parents:
664
diff
changeset
|
2444 if (errno == ERANGE && |
48f462341528
Fix issues with gradual underflow and strtof, strtod on Mac.
Christian Kamm <kamm incasoftware de>
parents:
664
diff
changeset
|
2445 strtodres != 0 && strtodres != HUGE_VAL && strtodres != -HUGE_VAL) |
48f462341528
Fix issues with gradual underflow and strtof, strtod on Mac.
Christian Kamm <kamm incasoftware de>
parents:
664
diff
changeset
|
2446 errno = 0; |
159 | 2447 #endif |
2448 result = TOKfloat64v; | |
2449 break; | |
2450 | |
2451 case 'l': | |
2452 if (!global.params.useDeprecated) | |
2453 error("'l' suffix is deprecated, use 'L' instead"); | |
2454 case 'L': | |
2455 result = TOKfloat80v; | |
2456 p++; | |
2457 break; | |
2458 } | |
2459 if (*p == 'i' || *p == 'I') | |
2460 { | |
2461 if (!global.params.useDeprecated && *p == 'I') | |
2462 error("'I' suffix is deprecated, use 'i' instead"); | |
2463 p++; | |
2464 switch (result) | |
2465 { | |
2466 case TOKfloat32v: | |
2467 result = TOKimaginary32v; | |
2468 break; | |
2469 case TOKfloat64v: | |
2470 result = TOKimaginary64v; | |
2471 break; | |
2472 case TOKfloat80v: | |
2473 result = TOKimaginary80v; | |
2474 break; | |
2475 } | |
2476 } | |
2477 #if _WIN32 && __DMC__ | |
2478 __locale_decpoint = save; | |
2479 #endif | |
2480 if (errno == ERANGE) | |
2481 error("number is not representable"); | |
2482 return result; | |
2483 } | |
2484 | |
2485 /********************************************* | |
2486 * Do pragma. | |
2487 * Currently, the only pragma supported is: | |
2488 * #line linnum [filespec] | |
2489 */ | |
2490 | |
2491 void Lexer::pragma() | |
2492 { | |
2493 Token tok; | |
2494 int linnum; | |
2495 char *filespec = NULL; | |
2496 Loc loc = this->loc; | |
2497 | |
2498 scan(&tok); | |
2499 if (tok.value != TOKidentifier || tok.ident != Id::line) | |
2500 goto Lerr; | |
2501 | |
2502 scan(&tok); | |
2503 if (tok.value == TOKint32v || tok.value == TOKint64v) | |
2504 linnum = tok.uns64value - 1; | |
2505 else | |
2506 goto Lerr; | |
2507 | |
2508 while (1) | |
2509 { | |
2510 switch (*p) | |
2511 { | |
2512 case 0: | |
2513 case 0x1A: | |
2514 case '\n': | |
2515 Lnewline: | |
2516 this->loc.linnum = linnum; | |
2517 if (filespec) | |
2518 this->loc.filename = filespec; | |
2519 return; | |
2520 | |
2521 case '\r': | |
2522 p++; | |
2523 if (*p != '\n') | |
2524 { p--; | |
2525 goto Lnewline; | |
2526 } | |
2527 continue; | |
2528 | |
2529 case ' ': | |
2530 case '\t': | |
2531 case '\v': | |
2532 case '\f': | |
2533 p++; | |
2534 continue; // skip white space | |
2535 | |
2536 case '_': | |
2537 if (mod && memcmp(p, "__FILE__", 8) == 0) | |
2538 { | |
2539 p += 8; | |
2540 filespec = mem.strdup(loc.filename ? loc.filename : mod->ident->toChars()); | |
2541 } | |
2542 continue; | |
2543 | |
2544 case '"': | |
2545 if (filespec) | |
2546 goto Lerr; | |
2547 stringbuffer.reset(); | |
2548 p++; | |
2549 while (1) | |
2550 { unsigned c; | |
2551 | |
2552 c = *p; | |
2553 switch (c) | |
2554 { | |
2555 case '\n': | |
2556 case '\r': | |
2557 case 0: | |
2558 case 0x1A: | |
2559 goto Lerr; | |
2560 | |
2561 case '"': | |
2562 stringbuffer.writeByte(0); | |
2563 filespec = mem.strdup((char *)stringbuffer.data); | |
2564 p++; | |
2565 break; | |
2566 | |
2567 default: | |
2568 if (c & 0x80) | |
2569 { unsigned u = decodeUTF(); | |
2570 if (u == PS || u == LS) | |
2571 goto Lerr; | |
2572 } | |
2573 stringbuffer.writeByte(c); | |
2574 p++; | |
2575 continue; | |
2576 } | |
2577 break; | |
2578 } | |
2579 continue; | |
2580 | |
2581 default: | |
2582 if (*p & 0x80) | |
2583 { unsigned u = decodeUTF(); | |
2584 if (u == PS || u == LS) | |
2585 goto Lnewline; | |
2586 } | |
2587 goto Lerr; | |
2588 } | |
2589 } | |
2590 | |
2591 Lerr: | |
2592 error(loc, "#line integer [\"filespec\"]\\n expected"); | |
2593 } | |
2594 | |
2595 | |
2596 /******************************************** | |
2597 * Decode UTF character. | |
2598 * Issue error messages for invalid sequences. | |
2599 * Return decoded character, advance p to last character in UTF sequence. | |
2600 */ | |
2601 | |
2602 unsigned Lexer::decodeUTF() | |
2603 { | |
2604 dchar_t u; | |
2605 unsigned char c; | |
2606 unsigned char *s = p; | |
2607 size_t len; | |
2608 size_t idx; | |
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
366
diff
changeset
|
2609 const char *msg; |
159 | 2610 |
2611 c = *s; | |
2612 assert(c & 0x80); | |
2613 | |
2614 // Check length of remaining string up to 6 UTF-8 characters | |
2615 for (len = 1; len < 6 && s[len]; len++) | |
2616 ; | |
2617 | |
2618 idx = 0; | |
2619 msg = utf_decodeChar(s, len, &idx, &u); | |
2620 p += idx - 1; | |
2621 if (msg) | |
2622 { | |
2623 error("%s", msg); | |
2624 } | |
2625 return u; | |
2626 } | |
2627 | |
2628 | |
2629 /*************************************************** | |
2630 * Parse doc comment embedded between t->ptr and p. | |
2631 * Remove trailing blanks and tabs from lines. | |
2632 * Replace all newlines with \n. | |
2633 * Remove leading comment character from each line. | |
2634 * Decide if it's a lineComment or a blockComment. | |
2635 * Append to previous one for this token. | |
2636 */ | |
2637 | |
2638 void Lexer::getDocComment(Token *t, unsigned lineComment) | |
2639 { | |
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2640 /* ct tells us which kind of comment it is: '/', '*', or '+' |
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2641 */ |
159 | 2642 unsigned char ct = t->ptr[2]; |
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2643 |
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2644 /* Start of comment text skips over / * *, / + +, or / / / |
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2645 */ |
159 | 2646 unsigned char *q = t->ptr + 3; // start of comment text |
2647 | |
2648 unsigned char *qend = p; | |
2649 if (ct == '*' || ct == '+') | |
2650 qend -= 2; | |
2651 | |
2652 /* Scan over initial row of ****'s or ++++'s or ////'s | |
2653 */ | |
2654 for (; q < qend; q++) | |
2655 { | |
2656 if (*q != ct) | |
2657 break; | |
2658 } | |
2659 | |
2660 /* Remove trailing row of ****'s or ++++'s | |
2661 */ | |
2662 if (ct != '/') | |
2663 { | |
2664 for (; q < qend; qend--) | |
2665 { | |
2666 if (qend[-1] != ct) | |
2667 break; | |
2668 } | |
2669 } | |
2670 | |
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2671 /* Comment is now [q .. qend]. |
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
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2672 * Canonicalize it into buf[]. |
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2673 */ |
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2674 OutBuffer buf; |
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2675 int linestart = 0; |
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2676 |
159 | 2677 for (; q < qend; q++) |
2678 { | |
2679 unsigned char c = *q; | |
2680 | |
2681 switch (c) | |
2682 { | |
2683 case '*': | |
2684 case '+': | |
2685 if (linestart && c == ct) | |
2686 { linestart = 0; | |
2687 /* Trim preceding whitespace up to preceding \n | |
2688 */ | |
2689 while (buf.offset && (buf.data[buf.offset - 1] == ' ' || buf.data[buf.offset - 1] == '\t')) | |
2690 buf.offset--; | |
2691 continue; | |
2692 } | |
2693 break; | |
2694 | |
2695 case ' ': | |
2696 case '\t': | |
2697 break; | |
2698 | |
2699 case '\r': | |
2700 if (q[1] == '\n') | |
2701 continue; // skip the \r | |
2702 goto Lnewline; | |
2703 | |
2704 default: | |
2705 if (c == 226) | |
2706 { | |
2707 // If LS or PS | |
2708 if (q[1] == 128 && | |
2709 (q[2] == 168 || q[2] == 169)) | |
2710 { | |
2711 q += 2; | |
2712 goto Lnewline; | |
2713 } | |
2714 } | |
2715 linestart = 0; | |
2716 break; | |
2717 | |
2718 Lnewline: | |
2719 c = '\n'; // replace all newlines with \n | |
2720 case '\n': | |
2721 linestart = 1; | |
2722 | |
2723 /* Trim trailing whitespace | |
2724 */ | |
2725 while (buf.offset && (buf.data[buf.offset - 1] == ' ' || buf.data[buf.offset - 1] == '\t')) | |
2726 buf.offset--; | |
2727 | |
2728 break; | |
2729 } | |
2730 buf.writeByte(c); | |
2731 } | |
2732 | |
2733 // Always end with a newline | |
2734 if (!buf.offset || buf.data[buf.offset - 1] != '\n') | |
2735 buf.writeByte('\n'); | |
2736 | |
2737 buf.writeByte(0); | |
2738 | |
2739 // It's a line comment if the start of the doc comment comes | |
2740 // after other non-whitespace on the same line. | |
2741 unsigned char** dc = (lineComment && anyToken) | |
2742 ? &t->lineComment | |
2743 : &t->blockComment; | |
2744 | |
2745 // Combine with previous doc comment, if any | |
2746 if (*dc) | |
2747 *dc = combineComments(*dc, (unsigned char *)buf.data); | |
2748 else | |
2749 *dc = (unsigned char *)buf.extractData(); | |
2750 } | |
2751 | |
2752 /******************************************** | |
846
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diff
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2753 * Combine two document comments into one, |
bc982f1ad106
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diff
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2754 * separated by a newline. |
159 | 2755 */ |
2756 | |
2757 unsigned char *Lexer::combineComments(unsigned char *c1, unsigned char *c2) | |
2758 { | |
846
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Merged DMD 1.037 frontend
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2759 //printf("Lexer::combineComments('%s', '%s')\n", c1, c2); |
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Merged DMD 1.037 frontend
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2760 |
159 | 2761 unsigned char *c = c2; |
2762 | |
2763 if (c1) | |
2764 { c = c1; | |
2765 if (c2) | |
2766 { size_t len1 = strlen((char *)c1); | |
2767 size_t len2 = strlen((char *)c2); | |
2768 | |
2769 c = (unsigned char *)mem.malloc(len1 + 1 + len2 + 1); | |
2770 memcpy(c, c1, len1); | |
846
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2771 if (len1 && c1[len1 - 1] != '\n') |
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Merged DMD 1.037 frontend
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diff
changeset
|
2772 { c[len1] = '\n'; |
bc982f1ad106
Merged DMD 1.037 frontend
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diff
changeset
|
2773 len1++; |
bc982f1ad106
Merged DMD 1.037 frontend
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diff
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|
2774 } |
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Merged DMD 1.037 frontend
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parents:
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diff
changeset
|
2775 memcpy(c + len1, c2, len2); |
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Merged DMD 1.037 frontend
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2776 c[len1 + len2] = 0; |
159 | 2777 } |
2778 } | |
2779 return c; | |
2780 } | |
2781 | |
2782 /******************************************** | |
2783 * Create an identifier in the string table. | |
2784 */ | |
2785 | |
2786 Identifier *Lexer::idPool(const char *s) | |
2787 { | |
2788 size_t len = strlen(s); | |
2789 StringValue *sv = stringtable.update(s, len); | |
2790 Identifier *id = (Identifier *) sv->ptrvalue; | |
2791 if (!id) | |
2792 { | |
2793 id = new Identifier(sv->lstring.string, TOKidentifier); | |
2794 sv->ptrvalue = id; | |
2795 } | |
2796 return id; | |
2797 } | |
2798 | |
2799 /********************************************* | |
2800 * Create a unique identifier using the prefix s. | |
2801 */ | |
2802 | |
2803 Identifier *Lexer::uniqueId(const char *s, int num) | |
2804 { char buffer[32]; | |
2805 size_t slen = strlen(s); | |
2806 | |
2807 assert(slen + sizeof(num) * 3 + 1 <= sizeof(buffer)); | |
2808 sprintf(buffer, "%s%d", s, num); | |
2809 return idPool(buffer); | |
2810 } | |
2811 | |
2812 Identifier *Lexer::uniqueId(const char *s) | |
2813 { | |
2814 static int num; | |
2815 return uniqueId(s, ++num); | |
2816 } | |
2817 | |
2818 /**************************************** | |
2819 */ | |
2820 | |
2821 struct Keyword | |
658
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Upgraded frontend to DMD 1.035
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2822 { const char *name; |
159 | 2823 enum TOK value; |
2824 }; | |
2825 | |
2826 static Keyword keywords[] = | |
2827 { | |
2828 // { "", TOK }, | |
2829 | |
2830 { "this", TOKthis }, | |
2831 { "super", TOKsuper }, | |
2832 { "assert", TOKassert }, | |
2833 { "null", TOKnull }, | |
2834 { "true", TOKtrue }, | |
2835 { "false", TOKfalse }, | |
2836 { "cast", TOKcast }, | |
2837 { "new", TOKnew }, | |
2838 { "delete", TOKdelete }, | |
2839 { "throw", TOKthrow }, | |
2840 { "module", TOKmodule }, | |
2841 { "pragma", TOKpragma }, | |
2842 { "typeof", TOKtypeof }, | |
2843 { "typeid", TOKtypeid }, | |
2844 | |
2845 { "template", TOKtemplate }, | |
2846 | |
2847 { "void", TOKvoid }, | |
2848 { "byte", TOKint8 }, | |
2849 { "ubyte", TOKuns8 }, | |
2850 { "short", TOKint16 }, | |
2851 { "ushort", TOKuns16 }, | |
2852 { "int", TOKint32 }, | |
2853 { "uint", TOKuns32 }, | |
2854 { "long", TOKint64 }, | |
2855 { "ulong", TOKuns64 }, | |
2856 { "cent", TOKcent, }, | |
2857 { "ucent", TOKucent, }, | |
2858 { "float", TOKfloat32 }, | |
2859 { "double", TOKfloat64 }, | |
2860 { "real", TOKfloat80 }, | |
2861 | |
2862 { "bool", TOKbool }, | |
2863 { "char", TOKchar }, | |
2864 { "wchar", TOKwchar }, | |
2865 { "dchar", TOKdchar }, | |
2866 | |
2867 { "ifloat", TOKimaginary32 }, | |
2868 { "idouble", TOKimaginary64 }, | |
2869 { "ireal", TOKimaginary80 }, | |
2870 | |
2871 { "cfloat", TOKcomplex32 }, | |
2872 { "cdouble", TOKcomplex64 }, | |
2873 { "creal", TOKcomplex80 }, | |
2874 | |
2875 { "delegate", TOKdelegate }, | |
2876 { "function", TOKfunction }, | |
2877 | |
2878 { "is", TOKis }, | |
2879 { "if", TOKif }, | |
2880 { "else", TOKelse }, | |
2881 { "while", TOKwhile }, | |
2882 { "for", TOKfor }, | |
2883 { "do", TOKdo }, | |
2884 { "switch", TOKswitch }, | |
2885 { "case", TOKcase }, | |
2886 { "default", TOKdefault }, | |
2887 { "break", TOKbreak }, | |
2888 { "continue", TOKcontinue }, | |
2889 { "synchronized", TOKsynchronized }, | |
2890 { "return", TOKreturn }, | |
2891 { "goto", TOKgoto }, | |
2892 { "try", TOKtry }, | |
2893 { "catch", TOKcatch }, | |
2894 { "finally", TOKfinally }, | |
2895 { "with", TOKwith }, | |
2896 { "asm", TOKasm }, | |
2897 { "foreach", TOKforeach }, | |
2898 { "foreach_reverse", TOKforeach_reverse }, | |
2899 { "scope", TOKscope }, | |
2900 | |
2901 { "struct", TOKstruct }, | |
2902 { "class", TOKclass }, | |
2903 { "interface", TOKinterface }, | |
2904 { "union", TOKunion }, | |
2905 { "enum", TOKenum }, | |
2906 { "import", TOKimport }, | |
2907 { "mixin", TOKmixin }, | |
2908 { "static", TOKstatic }, | |
2909 { "final", TOKfinal }, | |
2910 { "const", TOKconst }, | |
2911 { "typedef", TOKtypedef }, | |
2912 { "alias", TOKalias }, | |
2913 { "override", TOKoverride }, | |
2914 { "abstract", TOKabstract }, | |
2915 { "volatile", TOKvolatile }, | |
2916 { "debug", TOKdebug }, | |
2917 { "deprecated", TOKdeprecated }, | |
2918 { "in", TOKin }, | |
2919 { "out", TOKout }, | |
2920 { "inout", TOKinout }, | |
2921 { "lazy", TOKlazy }, | |
2922 { "auto", TOKauto }, | |
2923 | |
2924 { "align", TOKalign }, | |
2925 { "extern", TOKextern }, | |
2926 { "private", TOKprivate }, | |
2927 { "package", TOKpackage }, | |
2928 { "protected", TOKprotected }, | |
2929 { "public", TOKpublic }, | |
2930 { "export", TOKexport }, | |
2931 | |
2932 { "body", TOKbody }, | |
2933 { "invariant", TOKinvariant }, | |
2934 { "unittest", TOKunittest }, | |
2935 { "version", TOKversion }, | |
2936 //{ "manifest", TOKmanifest }, | |
2937 | |
2938 // Added after 1.0 | |
2939 { "ref", TOKref }, | |
2940 { "macro", TOKmacro }, | |
336 | 2941 #if DMDV2 |
159 | 2942 { "pure", TOKpure }, |
2943 { "nothrow", TOKnothrow }, | |
336 | 2944 { "__thread", TOKtls }, |
159 | 2945 { "__traits", TOKtraits }, |
2946 { "__overloadset", TOKoverloadset }, | |
336 | 2947 { "__FILE__", TOKfile }, |
2948 { "__LINE__", TOKline }, | |
658
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Upgraded frontend to DMD 1.035
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|
2949 { "shared", TOKshared }, |
846
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Merged DMD 1.037 frontend
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changeset
|
2950 { "immutable", TOKimmutable }, |
159 | 2951 #endif |
2952 }; | |
2953 | |
2954 int Token::isKeyword() | |
2955 { | |
2956 for (unsigned u = 0; u < sizeof(keywords) / sizeof(keywords[0]); u++) | |
2957 { | |
2958 if (keywords[u].value == value) | |
2959 return 1; | |
2960 } | |
2961 return 0; | |
2962 } | |
2963 | |
2964 void Lexer::initKeywords() | |
2965 { StringValue *sv; | |
2966 unsigned u; | |
2967 enum TOK v; | |
2968 unsigned nkeywords = sizeof(keywords) / sizeof(keywords[0]); | |
2969 | |
2970 if (global.params.Dversion == 1) | |
2971 nkeywords -= 2; | |
2972 | |
2973 cmtable_init(); | |
2974 | |
2975 for (u = 0; u < nkeywords; u++) | |
658
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Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff
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|
2976 { const char *s; |
159 | 2977 |
2978 //printf("keyword[%d] = '%s'\n",u, keywords[u].name); | |
2979 s = keywords[u].name; | |
2980 v = keywords[u].value; | |
2981 sv = stringtable.insert(s, strlen(s)); | |
2982 sv->ptrvalue = (void *) new Identifier(sv->lstring.string,v); | |
2983 | |
2984 //printf("tochars[%d] = '%s'\n",v, s); | |
2985 Token::tochars[v] = s; | |
2986 } | |
2987 | |
2988 Token::tochars[TOKeof] = "EOF"; | |
2989 Token::tochars[TOKlcurly] = "{"; | |
2990 Token::tochars[TOKrcurly] = "}"; | |
2991 Token::tochars[TOKlparen] = "("; | |
2992 Token::tochars[TOKrparen] = ")"; | |
2993 Token::tochars[TOKlbracket] = "["; | |
2994 Token::tochars[TOKrbracket] = "]"; | |
2995 Token::tochars[TOKsemicolon] = ";"; | |
2996 Token::tochars[TOKcolon] = ":"; | |
2997 Token::tochars[TOKcomma] = ","; | |
2998 Token::tochars[TOKdot] = "."; | |
2999 Token::tochars[TOKxor] = "^"; | |
3000 Token::tochars[TOKxorass] = "^="; | |
3001 Token::tochars[TOKassign] = "="; | |
3002 Token::tochars[TOKconstruct] = "="; | |
336 | 3003 #if DMDV2 |
159 | 3004 Token::tochars[TOKblit] = "="; |
3005 #endif | |
3006 Token::tochars[TOKlt] = "<"; | |
3007 Token::tochars[TOKgt] = ">"; | |
3008 Token::tochars[TOKle] = "<="; | |
3009 Token::tochars[TOKge] = ">="; | |
3010 Token::tochars[TOKequal] = "=="; | |
3011 Token::tochars[TOKnotequal] = "!="; | |
3012 Token::tochars[TOKnotidentity] = "!is"; | |
3013 Token::tochars[TOKtobool] = "!!"; | |
3014 | |
3015 Token::tochars[TOKunord] = "!<>="; | |
3016 Token::tochars[TOKue] = "!<>"; | |
3017 Token::tochars[TOKlg] = "<>"; | |
3018 Token::tochars[TOKleg] = "<>="; | |
3019 Token::tochars[TOKule] = "!>"; | |
3020 Token::tochars[TOKul] = "!>="; | |
3021 Token::tochars[TOKuge] = "!<"; | |
3022 Token::tochars[TOKug] = "!<="; | |
3023 | |
3024 Token::tochars[TOKnot] = "!"; | |
3025 Token::tochars[TOKtobool] = "!!"; | |
3026 Token::tochars[TOKshl] = "<<"; | |
3027 Token::tochars[TOKshr] = ">>"; | |
3028 Token::tochars[TOKushr] = ">>>"; | |
3029 Token::tochars[TOKadd] = "+"; | |
3030 Token::tochars[TOKmin] = "-"; | |
3031 Token::tochars[TOKmul] = "*"; | |
3032 Token::tochars[TOKdiv] = "/"; | |
3033 Token::tochars[TOKmod] = "%"; | |
3034 Token::tochars[TOKslice] = ".."; | |
3035 Token::tochars[TOKdotdotdot] = "..."; | |
3036 Token::tochars[TOKand] = "&"; | |
3037 Token::tochars[TOKandand] = "&&"; | |
3038 Token::tochars[TOKor] = "|"; | |
3039 Token::tochars[TOKoror] = "||"; | |
3040 Token::tochars[TOKarray] = "[]"; | |
3041 Token::tochars[TOKindex] = "[i]"; | |
3042 Token::tochars[TOKaddress] = "&"; | |
3043 Token::tochars[TOKstar] = "*"; | |
3044 Token::tochars[TOKtilde] = "~"; | |
3045 Token::tochars[TOKdollar] = "$"; | |
3046 Token::tochars[TOKcast] = "cast"; | |
3047 Token::tochars[TOKplusplus] = "++"; | |
3048 Token::tochars[TOKminusminus] = "--"; | |
3049 Token::tochars[TOKtype] = "type"; | |
3050 Token::tochars[TOKquestion] = "?"; | |
3051 Token::tochars[TOKneg] = "-"; | |
3052 Token::tochars[TOKuadd] = "+"; | |
3053 Token::tochars[TOKvar] = "var"; | |
3054 Token::tochars[TOKaddass] = "+="; | |
3055 Token::tochars[TOKminass] = "-="; | |
3056 Token::tochars[TOKmulass] = "*="; | |
3057 Token::tochars[TOKdivass] = "/="; | |
3058 Token::tochars[TOKmodass] = "%="; | |
3059 Token::tochars[TOKshlass] = "<<="; | |
3060 Token::tochars[TOKshrass] = ">>="; | |
3061 Token::tochars[TOKushrass] = ">>>="; | |
3062 Token::tochars[TOKandass] = "&="; | |
3063 Token::tochars[TOKorass] = "|="; | |
3064 Token::tochars[TOKcatass] = "~="; | |
3065 Token::tochars[TOKcat] = "~"; | |
3066 Token::tochars[TOKcall] = "call"; | |
3067 Token::tochars[TOKidentity] = "is"; | |
3068 Token::tochars[TOKnotidentity] = "!is"; | |
3069 | |
3070 Token::tochars[TOKorass] = "|="; | |
3071 Token::tochars[TOKidentifier] = "identifier"; | |
3072 | |
3073 // For debugging | |
3074 Token::tochars[TOKdotexp] = "dotexp"; | |
3075 Token::tochars[TOKdotti] = "dotti"; | |
3076 Token::tochars[TOKdotvar] = "dotvar"; | |
3077 Token::tochars[TOKdottype] = "dottype"; | |
3078 Token::tochars[TOKsymoff] = "symoff"; | |
3079 Token::tochars[TOKarraylength] = "arraylength"; | |
3080 Token::tochars[TOKarrayliteral] = "arrayliteral"; | |
3081 Token::tochars[TOKassocarrayliteral] = "assocarrayliteral"; | |
3082 Token::tochars[TOKstructliteral] = "structliteral"; | |
3083 Token::tochars[TOKstring] = "string"; | |
3084 Token::tochars[TOKdsymbol] = "symbol"; | |
3085 Token::tochars[TOKtuple] = "tuple"; | |
3086 Token::tochars[TOKdeclaration] = "declaration"; | |
3087 Token::tochars[TOKdottd] = "dottd"; | |
3088 Token::tochars[TOKon_scope_exit] = "scope(exit)"; | |
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3089 Token::tochars[TOKon_scope_success] = "scope(success)"; |
e961851fb8be
Merged DMD 1.042.
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parents:
1165
diff
changeset
|
3090 Token::tochars[TOKon_scope_failure] = "scope(failure)"; |
159 | 3091 } |