1 | /* Generated by re2c */ |
2 | // Copyright 2011 Google Inc. All Rights Reserved. |
3 | // |
4 | // Licensed under the Apache License, Version 2.0 (the "License"); |
5 | // you may not use this file except in compliance with the License. |
6 | // You may obtain a copy of the License at |
7 | // |
8 | // http://www.apache.org/licenses/LICENSE-2.0 |
9 | // |
10 | // Unless required by applicable law or agreed to in writing, software |
11 | // distributed under the License is distributed on an "AS IS" BASIS, |
12 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
13 | // See the License for the specific language governing permissions and |
14 | // limitations under the License. |
15 | |
16 | #include "lexer.h" |
17 | |
18 | #include <stdio.h> |
19 | |
20 | #include "eval_env.h" |
21 | #include "util.h" |
22 | |
23 | using namespace std; |
24 | |
25 | bool Lexer::Error(const string& message, string* err) { |
26 | // Compute line/column. |
27 | int line = 1; |
28 | const char* line_start = input_.str_; |
29 | for (const char* p = input_.str_; p < last_token_; ++p) { |
30 | if (*p == '\n') { |
31 | ++line; |
32 | line_start = p + 1; |
33 | } |
34 | } |
35 | int col = last_token_ ? (int)(last_token_ - line_start) : 0; |
36 | |
37 | char buf[1024]; |
38 | snprintf(buf, sizeof(buf), "%s:%d: " , filename_.AsString().c_str(), line); |
39 | *err = buf; |
40 | *err += message + "\n" ; |
41 | |
42 | // Add some context to the message. |
43 | const int kTruncateColumn = 72; |
44 | if (col > 0 && col < kTruncateColumn) { |
45 | int len; |
46 | bool truncated = true; |
47 | for (len = 0; len < kTruncateColumn; ++len) { |
48 | if (line_start[len] == 0 || line_start[len] == '\n') { |
49 | truncated = false; |
50 | break; |
51 | } |
52 | } |
53 | *err += string(line_start, len); |
54 | if (truncated) |
55 | *err += "..." ; |
56 | *err += "\n" ; |
57 | *err += string(col, ' '); |
58 | *err += "^ near here" ; |
59 | } |
60 | |
61 | return false; |
62 | } |
63 | |
64 | Lexer::Lexer(const char* input) { |
65 | Start("input" , input); |
66 | } |
67 | |
68 | void Lexer::Start(StringPiece filename, StringPiece input) { |
69 | filename_ = filename; |
70 | input_ = input; |
71 | ofs_ = input_.str_; |
72 | last_token_ = NULL; |
73 | } |
74 | |
75 | const char* Lexer::TokenName(Token t) { |
76 | switch (t) { |
77 | case ERROR: return "lexing error" ; |
78 | case BUILD: return "'build'" ; |
79 | case COLON: return "':'" ; |
80 | case DEFAULT: return "'default'" ; |
81 | case EQUALS: return "'='" ; |
82 | case IDENT: return "identifier" ; |
83 | case INCLUDE: return "'include'" ; |
84 | case INDENT: return "indent" ; |
85 | case NEWLINE: return "newline" ; |
86 | case PIPE2: return "'||'" ; |
87 | case PIPE: return "'|'" ; |
88 | case PIPEAT: return "'|@'" ; |
89 | case POOL: return "'pool'" ; |
90 | case RULE: return "'rule'" ; |
91 | case SUBNINJA: return "'subninja'" ; |
92 | case TEOF: return "eof" ; |
93 | } |
94 | return NULL; // not reached |
95 | } |
96 | |
97 | const char* Lexer::TokenErrorHint(Token expected) { |
98 | switch (expected) { |
99 | case COLON: |
100 | return " ($ also escapes ':')" ; |
101 | default: |
102 | return "" ; |
103 | } |
104 | } |
105 | |
106 | string Lexer::DescribeLastError() { |
107 | if (last_token_) { |
108 | switch (last_token_[0]) { |
109 | case '\t': |
110 | return "tabs are not allowed, use spaces" ; |
111 | } |
112 | } |
113 | return "lexing error" ; |
114 | } |
115 | |
116 | void Lexer::UnreadToken() { |
117 | ofs_ = last_token_; |
118 | } |
119 | |
120 | Lexer::Token Lexer::ReadToken() { |
121 | const char* p = ofs_; |
122 | const char* q; |
123 | const char* start; |
124 | Lexer::Token token; |
125 | for (;;) { |
126 | start = p; |
127 | |
128 | { |
129 | unsigned char yych; |
130 | unsigned int yyaccept = 0; |
131 | static const unsigned char yybm[] = { |
132 | 0, 128, 128, 128, 128, 128, 128, 128, |
133 | 128, 128, 0, 128, 128, 128, 128, 128, |
134 | 128, 128, 128, 128, 128, 128, 128, 128, |
135 | 128, 128, 128, 128, 128, 128, 128, 128, |
136 | 160, 128, 128, 128, 128, 128, 128, 128, |
137 | 128, 128, 128, 128, 128, 192, 192, 128, |
138 | 192, 192, 192, 192, 192, 192, 192, 192, |
139 | 192, 192, 128, 128, 128, 128, 128, 128, |
140 | 128, 192, 192, 192, 192, 192, 192, 192, |
141 | 192, 192, 192, 192, 192, 192, 192, 192, |
142 | 192, 192, 192, 192, 192, 192, 192, 192, |
143 | 192, 192, 192, 128, 128, 128, 128, 192, |
144 | 128, 192, 192, 192, 192, 192, 192, 192, |
145 | 192, 192, 192, 192, 192, 192, 192, 192, |
146 | 192, 192, 192, 192, 192, 192, 192, 192, |
147 | 192, 192, 192, 128, 128, 128, 128, 128, |
148 | 128, 128, 128, 128, 128, 128, 128, 128, |
149 | 128, 128, 128, 128, 128, 128, 128, 128, |
150 | 128, 128, 128, 128, 128, 128, 128, 128, |
151 | 128, 128, 128, 128, 128, 128, 128, 128, |
152 | 128, 128, 128, 128, 128, 128, 128, 128, |
153 | 128, 128, 128, 128, 128, 128, 128, 128, |
154 | 128, 128, 128, 128, 128, 128, 128, 128, |
155 | 128, 128, 128, 128, 128, 128, 128, 128, |
156 | 128, 128, 128, 128, 128, 128, 128, 128, |
157 | 128, 128, 128, 128, 128, 128, 128, 128, |
158 | 128, 128, 128, 128, 128, 128, 128, 128, |
159 | 128, 128, 128, 128, 128, 128, 128, 128, |
160 | 128, 128, 128, 128, 128, 128, 128, 128, |
161 | 128, 128, 128, 128, 128, 128, 128, 128, |
162 | 128, 128, 128, 128, 128, 128, 128, 128, |
163 | 128, 128, 128, 128, 128, 128, 128, 128, |
164 | }; |
165 | yych = *p; |
166 | if (yybm[0+yych] & 32) { |
167 | goto yy9; |
168 | } |
169 | if (yych <= '^') { |
170 | if (yych <= ',') { |
171 | if (yych <= '\f') { |
172 | if (yych <= 0x00) goto yy2; |
173 | if (yych == '\n') goto yy6; |
174 | goto yy4; |
175 | } else { |
176 | if (yych <= '\r') goto yy8; |
177 | if (yych == '#') goto yy12; |
178 | goto yy4; |
179 | } |
180 | } else { |
181 | if (yych <= ':') { |
182 | if (yych == '/') goto yy4; |
183 | if (yych <= '9') goto yy13; |
184 | goto yy16; |
185 | } else { |
186 | if (yych <= '=') { |
187 | if (yych <= '<') goto yy4; |
188 | goto yy18; |
189 | } else { |
190 | if (yych <= '@') goto yy4; |
191 | if (yych <= 'Z') goto yy13; |
192 | goto yy4; |
193 | } |
194 | } |
195 | } |
196 | } else { |
197 | if (yych <= 'i') { |
198 | if (yych <= 'b') { |
199 | if (yych == '`') goto yy4; |
200 | if (yych <= 'a') goto yy13; |
201 | goto yy20; |
202 | } else { |
203 | if (yych == 'd') goto yy21; |
204 | if (yych <= 'h') goto yy13; |
205 | goto yy22; |
206 | } |
207 | } else { |
208 | if (yych <= 'r') { |
209 | if (yych == 'p') goto yy23; |
210 | if (yych <= 'q') goto yy13; |
211 | goto yy24; |
212 | } else { |
213 | if (yych <= 'z') { |
214 | if (yych <= 's') goto yy25; |
215 | goto yy13; |
216 | } else { |
217 | if (yych == '|') goto yy26; |
218 | goto yy4; |
219 | } |
220 | } |
221 | } |
222 | } |
223 | yy2: |
224 | ++p; |
225 | { token = TEOF; break; } |
226 | yy4: |
227 | ++p; |
228 | yy5: |
229 | { token = ERROR; break; } |
230 | yy6: |
231 | ++p; |
232 | { token = NEWLINE; break; } |
233 | yy8: |
234 | yych = *++p; |
235 | if (yych == '\n') goto yy28; |
236 | goto yy5; |
237 | yy9: |
238 | yyaccept = 0; |
239 | yych = *(q = ++p); |
240 | if (yybm[0+yych] & 32) { |
241 | goto yy9; |
242 | } |
243 | if (yych <= '\f') { |
244 | if (yych == '\n') goto yy6; |
245 | } else { |
246 | if (yych <= '\r') goto yy30; |
247 | if (yych == '#') goto yy32; |
248 | } |
249 | yy11: |
250 | { token = INDENT; break; } |
251 | yy12: |
252 | yyaccept = 1; |
253 | yych = *(q = ++p); |
254 | if (yych <= 0x00) goto yy5; |
255 | goto yy33; |
256 | yy13: |
257 | yych = *++p; |
258 | yy14: |
259 | if (yybm[0+yych] & 64) { |
260 | goto yy13; |
261 | } |
262 | { token = IDENT; break; } |
263 | yy16: |
264 | ++p; |
265 | { token = COLON; break; } |
266 | yy18: |
267 | ++p; |
268 | { token = EQUALS; break; } |
269 | yy20: |
270 | yych = *++p; |
271 | if (yych == 'u') goto yy36; |
272 | goto yy14; |
273 | yy21: |
274 | yych = *++p; |
275 | if (yych == 'e') goto yy37; |
276 | goto yy14; |
277 | yy22: |
278 | yych = *++p; |
279 | if (yych == 'n') goto yy38; |
280 | goto yy14; |
281 | yy23: |
282 | yych = *++p; |
283 | if (yych == 'o') goto yy39; |
284 | goto yy14; |
285 | yy24: |
286 | yych = *++p; |
287 | if (yych == 'u') goto yy40; |
288 | goto yy14; |
289 | yy25: |
290 | yych = *++p; |
291 | if (yych == 'u') goto yy41; |
292 | goto yy14; |
293 | yy26: |
294 | yych = *++p; |
295 | if (yych == '@') goto yy42; |
296 | if (yych == '|') goto yy44; |
297 | { token = PIPE; break; } |
298 | yy28: |
299 | ++p; |
300 | { token = NEWLINE; break; } |
301 | yy30: |
302 | yych = *++p; |
303 | if (yych == '\n') goto yy28; |
304 | yy31: |
305 | p = q; |
306 | if (yyaccept == 0) { |
307 | goto yy11; |
308 | } else { |
309 | goto yy5; |
310 | } |
311 | yy32: |
312 | yych = *++p; |
313 | yy33: |
314 | if (yybm[0+yych] & 128) { |
315 | goto yy32; |
316 | } |
317 | if (yych <= 0x00) goto yy31; |
318 | ++p; |
319 | { continue; } |
320 | yy36: |
321 | yych = *++p; |
322 | if (yych == 'i') goto yy46; |
323 | goto yy14; |
324 | yy37: |
325 | yych = *++p; |
326 | if (yych == 'f') goto yy47; |
327 | goto yy14; |
328 | yy38: |
329 | yych = *++p; |
330 | if (yych == 'c') goto yy48; |
331 | goto yy14; |
332 | yy39: |
333 | yych = *++p; |
334 | if (yych == 'o') goto yy49; |
335 | goto yy14; |
336 | yy40: |
337 | yych = *++p; |
338 | if (yych == 'l') goto yy50; |
339 | goto yy14; |
340 | yy41: |
341 | yych = *++p; |
342 | if (yych == 'b') goto yy51; |
343 | goto yy14; |
344 | yy42: |
345 | ++p; |
346 | { token = PIPEAT; break; } |
347 | yy44: |
348 | ++p; |
349 | { token = PIPE2; break; } |
350 | yy46: |
351 | yych = *++p; |
352 | if (yych == 'l') goto yy52; |
353 | goto yy14; |
354 | yy47: |
355 | yych = *++p; |
356 | if (yych == 'a') goto yy53; |
357 | goto yy14; |
358 | yy48: |
359 | yych = *++p; |
360 | if (yych == 'l') goto yy54; |
361 | goto yy14; |
362 | yy49: |
363 | yych = *++p; |
364 | if (yych == 'l') goto yy55; |
365 | goto yy14; |
366 | yy50: |
367 | yych = *++p; |
368 | if (yych == 'e') goto yy57; |
369 | goto yy14; |
370 | yy51: |
371 | yych = *++p; |
372 | if (yych == 'n') goto yy59; |
373 | goto yy14; |
374 | yy52: |
375 | yych = *++p; |
376 | if (yych == 'd') goto yy60; |
377 | goto yy14; |
378 | yy53: |
379 | yych = *++p; |
380 | if (yych == 'u') goto yy62; |
381 | goto yy14; |
382 | yy54: |
383 | yych = *++p; |
384 | if (yych == 'u') goto yy63; |
385 | goto yy14; |
386 | yy55: |
387 | yych = *++p; |
388 | if (yybm[0+yych] & 64) { |
389 | goto yy13; |
390 | } |
391 | { token = POOL; break; } |
392 | yy57: |
393 | yych = *++p; |
394 | if (yybm[0+yych] & 64) { |
395 | goto yy13; |
396 | } |
397 | { token = RULE; break; } |
398 | yy59: |
399 | yych = *++p; |
400 | if (yych == 'i') goto yy64; |
401 | goto yy14; |
402 | yy60: |
403 | yych = *++p; |
404 | if (yybm[0+yych] & 64) { |
405 | goto yy13; |
406 | } |
407 | { token = BUILD; break; } |
408 | yy62: |
409 | yych = *++p; |
410 | if (yych == 'l') goto yy65; |
411 | goto yy14; |
412 | yy63: |
413 | yych = *++p; |
414 | if (yych == 'd') goto yy66; |
415 | goto yy14; |
416 | yy64: |
417 | yych = *++p; |
418 | if (yych == 'n') goto yy67; |
419 | goto yy14; |
420 | yy65: |
421 | yych = *++p; |
422 | if (yych == 't') goto yy68; |
423 | goto yy14; |
424 | yy66: |
425 | yych = *++p; |
426 | if (yych == 'e') goto yy70; |
427 | goto yy14; |
428 | yy67: |
429 | yych = *++p; |
430 | if (yych == 'j') goto yy72; |
431 | goto yy14; |
432 | yy68: |
433 | yych = *++p; |
434 | if (yybm[0+yych] & 64) { |
435 | goto yy13; |
436 | } |
437 | { token = DEFAULT; break; } |
438 | yy70: |
439 | yych = *++p; |
440 | if (yybm[0+yych] & 64) { |
441 | goto yy13; |
442 | } |
443 | { token = INCLUDE; break; } |
444 | yy72: |
445 | yych = *++p; |
446 | if (yych != 'a') goto yy14; |
447 | yych = *++p; |
448 | if (yybm[0+yych] & 64) { |
449 | goto yy13; |
450 | } |
451 | { token = SUBNINJA; break; } |
452 | } |
453 | |
454 | } |
455 | |
456 | last_token_ = start; |
457 | ofs_ = p; |
458 | if (token != NEWLINE && token != TEOF) |
459 | EatWhitespace(); |
460 | return token; |
461 | } |
462 | |
463 | bool Lexer::PeekToken(Token token) { |
464 | Token t = ReadToken(); |
465 | if (t == token) |
466 | return true; |
467 | UnreadToken(); |
468 | return false; |
469 | } |
470 | |
471 | void Lexer::EatWhitespace() { |
472 | const char* p = ofs_; |
473 | const char* q; |
474 | for (;;) { |
475 | ofs_ = p; |
476 | |
477 | { |
478 | unsigned char yych; |
479 | static const unsigned char yybm[] = { |
480 | 0, 0, 0, 0, 0, 0, 0, 0, |
481 | 0, 0, 0, 0, 0, 0, 0, 0, |
482 | 0, 0, 0, 0, 0, 0, 0, 0, |
483 | 0, 0, 0, 0, 0, 0, 0, 0, |
484 | 128, 0, 0, 0, 0, 0, 0, 0, |
485 | 0, 0, 0, 0, 0, 0, 0, 0, |
486 | 0, 0, 0, 0, 0, 0, 0, 0, |
487 | 0, 0, 0, 0, 0, 0, 0, 0, |
488 | 0, 0, 0, 0, 0, 0, 0, 0, |
489 | 0, 0, 0, 0, 0, 0, 0, 0, |
490 | 0, 0, 0, 0, 0, 0, 0, 0, |
491 | 0, 0, 0, 0, 0, 0, 0, 0, |
492 | 0, 0, 0, 0, 0, 0, 0, 0, |
493 | 0, 0, 0, 0, 0, 0, 0, 0, |
494 | 0, 0, 0, 0, 0, 0, 0, 0, |
495 | 0, 0, 0, 0, 0, 0, 0, 0, |
496 | 0, 0, 0, 0, 0, 0, 0, 0, |
497 | 0, 0, 0, 0, 0, 0, 0, 0, |
498 | 0, 0, 0, 0, 0, 0, 0, 0, |
499 | 0, 0, 0, 0, 0, 0, 0, 0, |
500 | 0, 0, 0, 0, 0, 0, 0, 0, |
501 | 0, 0, 0, 0, 0, 0, 0, 0, |
502 | 0, 0, 0, 0, 0, 0, 0, 0, |
503 | 0, 0, 0, 0, 0, 0, 0, 0, |
504 | 0, 0, 0, 0, 0, 0, 0, 0, |
505 | 0, 0, 0, 0, 0, 0, 0, 0, |
506 | 0, 0, 0, 0, 0, 0, 0, 0, |
507 | 0, 0, 0, 0, 0, 0, 0, 0, |
508 | 0, 0, 0, 0, 0, 0, 0, 0, |
509 | 0, 0, 0, 0, 0, 0, 0, 0, |
510 | 0, 0, 0, 0, 0, 0, 0, 0, |
511 | 0, 0, 0, 0, 0, 0, 0, 0, |
512 | }; |
513 | yych = *p; |
514 | if (yybm[0+yych] & 128) { |
515 | goto yy81; |
516 | } |
517 | if (yych <= 0x00) goto yy77; |
518 | if (yych == '$') goto yy84; |
519 | goto yy79; |
520 | yy77: |
521 | ++p; |
522 | { break; } |
523 | yy79: |
524 | ++p; |
525 | yy80: |
526 | { break; } |
527 | yy81: |
528 | yych = *++p; |
529 | if (yybm[0+yych] & 128) { |
530 | goto yy81; |
531 | } |
532 | { continue; } |
533 | yy84: |
534 | yych = *(q = ++p); |
535 | if (yych == '\n') goto yy85; |
536 | if (yych == '\r') goto yy87; |
537 | goto yy80; |
538 | yy85: |
539 | ++p; |
540 | { continue; } |
541 | yy87: |
542 | yych = *++p; |
543 | if (yych == '\n') goto yy89; |
544 | p = q; |
545 | goto yy80; |
546 | yy89: |
547 | ++p; |
548 | { continue; } |
549 | } |
550 | |
551 | } |
552 | } |
553 | |
554 | bool Lexer::ReadIdent(string* out) { |
555 | const char* p = ofs_; |
556 | const char* start; |
557 | for (;;) { |
558 | start = p; |
559 | |
560 | { |
561 | unsigned char yych; |
562 | static const unsigned char yybm[] = { |
563 | 0, 0, 0, 0, 0, 0, 0, 0, |
564 | 0, 0, 0, 0, 0, 0, 0, 0, |
565 | 0, 0, 0, 0, 0, 0, 0, 0, |
566 | 0, 0, 0, 0, 0, 0, 0, 0, |
567 | 0, 0, 0, 0, 0, 0, 0, 0, |
568 | 0, 0, 0, 0, 0, 128, 128, 0, |
569 | 128, 128, 128, 128, 128, 128, 128, 128, |
570 | 128, 128, 0, 0, 0, 0, 0, 0, |
571 | 0, 128, 128, 128, 128, 128, 128, 128, |
572 | 128, 128, 128, 128, 128, 128, 128, 128, |
573 | 128, 128, 128, 128, 128, 128, 128, 128, |
574 | 128, 128, 128, 0, 0, 0, 0, 128, |
575 | 0, 128, 128, 128, 128, 128, 128, 128, |
576 | 128, 128, 128, 128, 128, 128, 128, 128, |
577 | 128, 128, 128, 128, 128, 128, 128, 128, |
578 | 128, 128, 128, 0, 0, 0, 0, 0, |
579 | 0, 0, 0, 0, 0, 0, 0, 0, |
580 | 0, 0, 0, 0, 0, 0, 0, 0, |
581 | 0, 0, 0, 0, 0, 0, 0, 0, |
582 | 0, 0, 0, 0, 0, 0, 0, 0, |
583 | 0, 0, 0, 0, 0, 0, 0, 0, |
584 | 0, 0, 0, 0, 0, 0, 0, 0, |
585 | 0, 0, 0, 0, 0, 0, 0, 0, |
586 | 0, 0, 0, 0, 0, 0, 0, 0, |
587 | 0, 0, 0, 0, 0, 0, 0, 0, |
588 | 0, 0, 0, 0, 0, 0, 0, 0, |
589 | 0, 0, 0, 0, 0, 0, 0, 0, |
590 | 0, 0, 0, 0, 0, 0, 0, 0, |
591 | 0, 0, 0, 0, 0, 0, 0, 0, |
592 | 0, 0, 0, 0, 0, 0, 0, 0, |
593 | 0, 0, 0, 0, 0, 0, 0, 0, |
594 | 0, 0, 0, 0, 0, 0, 0, 0, |
595 | }; |
596 | yych = *p; |
597 | if (yybm[0+yych] & 128) { |
598 | goto yy95; |
599 | } |
600 | ++p; |
601 | { |
602 | last_token_ = start; |
603 | return false; |
604 | } |
605 | yy95: |
606 | yych = *++p; |
607 | if (yybm[0+yych] & 128) { |
608 | goto yy95; |
609 | } |
610 | { |
611 | out->assign(start, p - start); |
612 | break; |
613 | } |
614 | } |
615 | |
616 | } |
617 | last_token_ = start; |
618 | ofs_ = p; |
619 | EatWhitespace(); |
620 | return true; |
621 | } |
622 | |
623 | bool Lexer::ReadEvalString(EvalString* eval, bool path, string* err) { |
624 | const char* p = ofs_; |
625 | const char* q; |
626 | const char* start; |
627 | for (;;) { |
628 | start = p; |
629 | |
630 | { |
631 | unsigned char yych; |
632 | static const unsigned char yybm[] = { |
633 | 0, 16, 16, 16, 16, 16, 16, 16, |
634 | 16, 16, 0, 16, 16, 0, 16, 16, |
635 | 16, 16, 16, 16, 16, 16, 16, 16, |
636 | 16, 16, 16, 16, 16, 16, 16, 16, |
637 | 32, 16, 16, 16, 0, 16, 16, 16, |
638 | 16, 16, 16, 16, 16, 208, 144, 16, |
639 | 208, 208, 208, 208, 208, 208, 208, 208, |
640 | 208, 208, 0, 16, 16, 16, 16, 16, |
641 | 16, 208, 208, 208, 208, 208, 208, 208, |
642 | 208, 208, 208, 208, 208, 208, 208, 208, |
643 | 208, 208, 208, 208, 208, 208, 208, 208, |
644 | 208, 208, 208, 16, 16, 16, 16, 208, |
645 | 16, 208, 208, 208, 208, 208, 208, 208, |
646 | 208, 208, 208, 208, 208, 208, 208, 208, |
647 | 208, 208, 208, 208, 208, 208, 208, 208, |
648 | 208, 208, 208, 16, 0, 16, 16, 16, |
649 | 16, 16, 16, 16, 16, 16, 16, 16, |
650 | 16, 16, 16, 16, 16, 16, 16, 16, |
651 | 16, 16, 16, 16, 16, 16, 16, 16, |
652 | 16, 16, 16, 16, 16, 16, 16, 16, |
653 | 16, 16, 16, 16, 16, 16, 16, 16, |
654 | 16, 16, 16, 16, 16, 16, 16, 16, |
655 | 16, 16, 16, 16, 16, 16, 16, 16, |
656 | 16, 16, 16, 16, 16, 16, 16, 16, |
657 | 16, 16, 16, 16, 16, 16, 16, 16, |
658 | 16, 16, 16, 16, 16, 16, 16, 16, |
659 | 16, 16, 16, 16, 16, 16, 16, 16, |
660 | 16, 16, 16, 16, 16, 16, 16, 16, |
661 | 16, 16, 16, 16, 16, 16, 16, 16, |
662 | 16, 16, 16, 16, 16, 16, 16, 16, |
663 | 16, 16, 16, 16, 16, 16, 16, 16, |
664 | 16, 16, 16, 16, 16, 16, 16, 16, |
665 | }; |
666 | yych = *p; |
667 | if (yybm[0+yych] & 16) { |
668 | goto yy102; |
669 | } |
670 | if (yych <= '\r') { |
671 | if (yych <= 0x00) goto yy100; |
672 | if (yych <= '\n') goto yy105; |
673 | goto yy107; |
674 | } else { |
675 | if (yych <= ' ') goto yy105; |
676 | if (yych <= '$') goto yy109; |
677 | goto yy105; |
678 | } |
679 | yy100: |
680 | ++p; |
681 | { |
682 | last_token_ = start; |
683 | return Error("unexpected EOF" , err); |
684 | } |
685 | yy102: |
686 | yych = *++p; |
687 | if (yybm[0+yych] & 16) { |
688 | goto yy102; |
689 | } |
690 | { |
691 | eval->AddText(StringPiece(start, p - start)); |
692 | continue; |
693 | } |
694 | yy105: |
695 | ++p; |
696 | { |
697 | if (path) { |
698 | p = start; |
699 | break; |
700 | } else { |
701 | if (*start == '\n') |
702 | break; |
703 | eval->AddText(StringPiece(start, 1)); |
704 | continue; |
705 | } |
706 | } |
707 | yy107: |
708 | yych = *++p; |
709 | if (yych == '\n') goto yy110; |
710 | { |
711 | last_token_ = start; |
712 | return Error(DescribeLastError(), err); |
713 | } |
714 | yy109: |
715 | yych = *++p; |
716 | if (yybm[0+yych] & 64) { |
717 | goto yy122; |
718 | } |
719 | if (yych <= ' ') { |
720 | if (yych <= '\f') { |
721 | if (yych == '\n') goto yy114; |
722 | goto yy112; |
723 | } else { |
724 | if (yych <= '\r') goto yy117; |
725 | if (yych <= 0x1F) goto yy112; |
726 | goto yy118; |
727 | } |
728 | } else { |
729 | if (yych <= '/') { |
730 | if (yych == '$') goto yy120; |
731 | goto yy112; |
732 | } else { |
733 | if (yych <= ':') goto yy125; |
734 | if (yych <= '`') goto yy112; |
735 | if (yych <= '{') goto yy127; |
736 | goto yy112; |
737 | } |
738 | } |
739 | yy110: |
740 | ++p; |
741 | { |
742 | if (path) |
743 | p = start; |
744 | break; |
745 | } |
746 | yy112: |
747 | ++p; |
748 | yy113: |
749 | { |
750 | last_token_ = start; |
751 | return Error("bad $-escape (literal $ must be written as $$)" , err); |
752 | } |
753 | yy114: |
754 | yych = *++p; |
755 | if (yybm[0+yych] & 32) { |
756 | goto yy114; |
757 | } |
758 | { |
759 | continue; |
760 | } |
761 | yy117: |
762 | yych = *++p; |
763 | if (yych == '\n') goto yy128; |
764 | goto yy113; |
765 | yy118: |
766 | ++p; |
767 | { |
768 | eval->AddText(StringPiece(" " , 1)); |
769 | continue; |
770 | } |
771 | yy120: |
772 | ++p; |
773 | { |
774 | eval->AddText(StringPiece("$" , 1)); |
775 | continue; |
776 | } |
777 | yy122: |
778 | yych = *++p; |
779 | if (yybm[0+yych] & 64) { |
780 | goto yy122; |
781 | } |
782 | { |
783 | eval->AddSpecial(StringPiece(start + 1, p - start - 1)); |
784 | continue; |
785 | } |
786 | yy125: |
787 | ++p; |
788 | { |
789 | eval->AddText(StringPiece(":" , 1)); |
790 | continue; |
791 | } |
792 | yy127: |
793 | yych = *(q = ++p); |
794 | if (yybm[0+yych] & 128) { |
795 | goto yy131; |
796 | } |
797 | goto yy113; |
798 | yy128: |
799 | yych = *++p; |
800 | if (yych == ' ') goto yy128; |
801 | { |
802 | continue; |
803 | } |
804 | yy131: |
805 | yych = *++p; |
806 | if (yybm[0+yych] & 128) { |
807 | goto yy131; |
808 | } |
809 | if (yych == '}') goto yy134; |
810 | p = q; |
811 | goto yy113; |
812 | yy134: |
813 | ++p; |
814 | { |
815 | eval->AddSpecial(StringPiece(start + 2, p - start - 3)); |
816 | continue; |
817 | } |
818 | } |
819 | |
820 | } |
821 | last_token_ = start; |
822 | ofs_ = p; |
823 | if (path) |
824 | EatWhitespace(); |
825 | // Non-path strings end in newlines, so there's no whitespace to eat. |
826 | return true; |
827 | } |
828 | |