Mercurial > projects > ddmd
annotate dmd/Lexer.d @ 192:eb38fdcb3e62 default tip
updated to compile with dmd2.062
author | korDen |
---|---|
date | Sat, 02 Mar 2013 01:25:52 -0800 |
parents | e3afd1303184 |
children |
rev | line source |
---|---|
0 | 1 module dmd.Lexer; |
2 | |
114 | 3 import dmd.common; |
0 | 4 import dmd.StringTable; |
5 import dmd.OutBuffer; | |
6 import dmd.Token; | |
7 import dmd.Loc; | |
8 import dmd.Module; | |
9 import dmd.Identifier; | |
10 import dmd.TOK; | |
11 import dmd.Keyword; | |
12 import dmd.StringValue; | |
13 import dmd.Global; | |
14 import dmd.Util; | |
15 import dmd.Id; | |
16 import dmd.Dchar; | |
17 import dmd.Utf; | |
18 | |
19 import std.stdio : writeln; | |
20 | |
4 | 21 import core.memory; |
2 | 22 |
0 | 23 import core.stdc.ctype; |
24 import core.stdc.stdlib; | |
25 import core.stdc.string; | |
26 import core.stdc.errno; | |
27 | |
28 enum LS = 0x2028; // UTF line separator | |
29 enum PS = 0x2029; // UTF paragraph separator | |
30 | |
31 extern (C) extern | |
32 { | |
33 __gshared char* __locale_decpoint; | |
34 } | |
35 | |
162 | 36 bool isUniAlpha(uint u) |
0 | 37 { |
168
ceed63f310fb
stringtable, stringbuffer and freelist moved to Global
korDen
parents:
163
diff
changeset
|
38 enum ushort table[][2] = |
162 | 39 [ |
40 [ 0x00AA, 0x00AA ], | |
41 [ 0x00B5, 0x00B5 ], | |
42 [ 0x00B7, 0x00B7 ], | |
43 [ 0x00BA, 0x00BA ], | |
44 [ 0x00C0, 0x00D6 ], | |
45 [ 0x00D8, 0x00F6 ], | |
46 [ 0x00F8, 0x01F5 ], | |
47 [ 0x01FA, 0x0217 ], | |
48 [ 0x0250, 0x02A8 ], | |
49 [ 0x02B0, 0x02B8 ], | |
50 [ 0x02BB, 0x02BB ], | |
51 [ 0x02BD, 0x02C1 ], | |
52 [ 0x02D0, 0x02D1 ], | |
53 [ 0x02E0, 0x02E4 ], | |
54 [ 0x037A, 0x037A ], | |
55 [ 0x0386, 0x0386 ], | |
56 [ 0x0388, 0x038A ], | |
57 [ 0x038C, 0x038C ], | |
58 [ 0x038E, 0x03A1 ], | |
59 [ 0x03A3, 0x03CE ], | |
60 [ 0x03D0, 0x03D6 ], | |
61 [ 0x03DA, 0x03DA ], | |
62 [ 0x03DC, 0x03DC ], | |
63 [ 0x03DE, 0x03DE ], | |
64 [ 0x03E0, 0x03E0 ], | |
65 [ 0x03E2, 0x03F3 ], | |
66 [ 0x0401, 0x040C ], | |
67 [ 0x040E, 0x044F ], | |
68 [ 0x0451, 0x045C ], | |
69 [ 0x045E, 0x0481 ], | |
70 [ 0x0490, 0x04C4 ], | |
71 [ 0x04C7, 0x04C8 ], | |
72 [ 0x04CB, 0x04CC ], | |
73 [ 0x04D0, 0x04EB ], | |
74 [ 0x04EE, 0x04F5 ], | |
75 [ 0x04F8, 0x04F9 ], | |
76 [ 0x0531, 0x0556 ], | |
77 [ 0x0559, 0x0559 ], | |
78 [ 0x0561, 0x0587 ], | |
79 [ 0x05B0, 0x05B9 ], | |
80 [ 0x05BB, 0x05BD ], | |
81 [ 0x05BF, 0x05BF ], | |
82 [ 0x05C1, 0x05C2 ], | |
83 [ 0x05D0, 0x05EA ], | |
84 [ 0x05F0, 0x05F2 ], | |
85 [ 0x0621, 0x063A ], | |
86 [ 0x0640, 0x0652 ], | |
87 [ 0x0660, 0x0669 ], | |
88 [ 0x0670, 0x06B7 ], | |
89 [ 0x06BA, 0x06BE ], | |
90 [ 0x06C0, 0x06CE ], | |
91 [ 0x06D0, 0x06DC ], | |
92 [ 0x06E5, 0x06E8 ], | |
93 [ 0x06EA, 0x06ED ], | |
94 [ 0x06F0, 0x06F9 ], | |
95 [ 0x0901, 0x0903 ], | |
96 [ 0x0905, 0x0939 ], | |
97 [ 0x093D, 0x093D ], | |
98 [ 0x093E, 0x094D ], | |
99 [ 0x0950, 0x0952 ], | |
100 [ 0x0958, 0x0963 ], | |
101 [ 0x0966, 0x096F ], | |
102 [ 0x0981, 0x0983 ], | |
103 [ 0x0985, 0x098C ], | |
104 [ 0x098F, 0x0990 ], | |
105 [ 0x0993, 0x09A8 ], | |
106 [ 0x09AA, 0x09B0 ], | |
107 [ 0x09B2, 0x09B2 ], | |
108 [ 0x09B6, 0x09B9 ], | |
109 [ 0x09BE, 0x09C4 ], | |
110 [ 0x09C7, 0x09C8 ], | |
111 [ 0x09CB, 0x09CD ], | |
112 [ 0x09DC, 0x09DD ], | |
113 [ 0x09DF, 0x09E3 ], | |
114 [ 0x09E6, 0x09EF ], | |
115 [ 0x09F0, 0x09F1 ], | |
116 [ 0x0A02, 0x0A02 ], | |
117 [ 0x0A05, 0x0A0A ], | |
118 [ 0x0A0F, 0x0A10 ], | |
119 [ 0x0A13, 0x0A28 ], | |
120 [ 0x0A2A, 0x0A30 ], | |
121 [ 0x0A32, 0x0A33 ], | |
122 [ 0x0A35, 0x0A36 ], | |
123 [ 0x0A38, 0x0A39 ], | |
124 [ 0x0A3E, 0x0A42 ], | |
125 [ 0x0A47, 0x0A48 ], | |
126 [ 0x0A4B, 0x0A4D ], | |
127 [ 0x0A59, 0x0A5C ], | |
128 [ 0x0A5E, 0x0A5E ], | |
129 [ 0x0A66, 0x0A6F ], | |
130 [ 0x0A74, 0x0A74 ], | |
131 [ 0x0A81, 0x0A83 ], | |
132 [ 0x0A85, 0x0A8B ], | |
133 [ 0x0A8D, 0x0A8D ], | |
134 [ 0x0A8F, 0x0A91 ], | |
135 [ 0x0A93, 0x0AA8 ], | |
136 [ 0x0AAA, 0x0AB0 ], | |
137 [ 0x0AB2, 0x0AB3 ], | |
138 [ 0x0AB5, 0x0AB9 ], | |
139 [ 0x0ABD, 0x0AC5 ], | |
140 [ 0x0AC7, 0x0AC9 ], | |
141 [ 0x0ACB, 0x0ACD ], | |
142 [ 0x0AD0, 0x0AD0 ], | |
143 [ 0x0AE0, 0x0AE0 ], | |
144 [ 0x0AE6, 0x0AEF ], | |
145 [ 0x0B01, 0x0B03 ], | |
146 [ 0x0B05, 0x0B0C ], | |
147 [ 0x0B0F, 0x0B10 ], | |
148 [ 0x0B13, 0x0B28 ], | |
149 [ 0x0B2A, 0x0B30 ], | |
150 [ 0x0B32, 0x0B33 ], | |
151 [ 0x0B36, 0x0B39 ], | |
152 [ 0x0B3D, 0x0B3D ], | |
153 [ 0x0B3E, 0x0B43 ], | |
154 [ 0x0B47, 0x0B48 ], | |
155 [ 0x0B4B, 0x0B4D ], | |
156 [ 0x0B5C, 0x0B5D ], | |
157 [ 0x0B5F, 0x0B61 ], | |
158 [ 0x0B66, 0x0B6F ], | |
159 [ 0x0B82, 0x0B83 ], | |
160 [ 0x0B85, 0x0B8A ], | |
161 [ 0x0B8E, 0x0B90 ], | |
162 [ 0x0B92, 0x0B95 ], | |
163 [ 0x0B99, 0x0B9A ], | |
164 [ 0x0B9C, 0x0B9C ], | |
165 [ 0x0B9E, 0x0B9F ], | |
166 [ 0x0BA3, 0x0BA4 ], | |
167 [ 0x0BA8, 0x0BAA ], | |
168 [ 0x0BAE, 0x0BB5 ], | |
169 [ 0x0BB7, 0x0BB9 ], | |
170 [ 0x0BBE, 0x0BC2 ], | |
171 [ 0x0BC6, 0x0BC8 ], | |
172 [ 0x0BCA, 0x0BCD ], | |
173 [ 0x0BE7, 0x0BEF ], | |
174 [ 0x0C01, 0x0C03 ], | |
175 [ 0x0C05, 0x0C0C ], | |
176 [ 0x0C0E, 0x0C10 ], | |
177 [ 0x0C12, 0x0C28 ], | |
178 [ 0x0C2A, 0x0C33 ], | |
179 [ 0x0C35, 0x0C39 ], | |
180 [ 0x0C3E, 0x0C44 ], | |
181 [ 0x0C46, 0x0C48 ], | |
182 [ 0x0C4A, 0x0C4D ], | |
183 [ 0x0C60, 0x0C61 ], | |
184 [ 0x0C66, 0x0C6F ], | |
185 [ 0x0C82, 0x0C83 ], | |
186 [ 0x0C85, 0x0C8C ], | |
187 [ 0x0C8E, 0x0C90 ], | |
188 [ 0x0C92, 0x0CA8 ], | |
189 [ 0x0CAA, 0x0CB3 ], | |
190 [ 0x0CB5, 0x0CB9 ], | |
191 [ 0x0CBE, 0x0CC4 ], | |
192 [ 0x0CC6, 0x0CC8 ], | |
193 [ 0x0CCA, 0x0CCD ], | |
194 [ 0x0CDE, 0x0CDE ], | |
195 [ 0x0CE0, 0x0CE1 ], | |
196 [ 0x0CE6, 0x0CEF ], | |
197 [ 0x0D02, 0x0D03 ], | |
198 [ 0x0D05, 0x0D0C ], | |
199 [ 0x0D0E, 0x0D10 ], | |
200 [ 0x0D12, 0x0D28 ], | |
201 [ 0x0D2A, 0x0D39 ], | |
202 [ 0x0D3E, 0x0D43 ], | |
203 [ 0x0D46, 0x0D48 ], | |
204 [ 0x0D4A, 0x0D4D ], | |
205 [ 0x0D60, 0x0D61 ], | |
206 [ 0x0D66, 0x0D6F ], | |
207 [ 0x0E01, 0x0E3A ], | |
208 [ 0x0E40, 0x0E5B ], | |
209 // { 0x0E50, 0x0E59 }, | |
210 [ 0x0E81, 0x0E82 ], | |
211 [ 0x0E84, 0x0E84 ], | |
212 [ 0x0E87, 0x0E88 ], | |
213 [ 0x0E8A, 0x0E8A ], | |
214 [ 0x0E8D, 0x0E8D ], | |
215 [ 0x0E94, 0x0E97 ], | |
216 [ 0x0E99, 0x0E9F ], | |
217 [ 0x0EA1, 0x0EA3 ], | |
218 [ 0x0EA5, 0x0EA5 ], | |
219 [ 0x0EA7, 0x0EA7 ], | |
220 [ 0x0EAA, 0x0EAB ], | |
221 [ 0x0EAD, 0x0EAE ], | |
222 [ 0x0EB0, 0x0EB9 ], | |
223 [ 0x0EBB, 0x0EBD ], | |
224 [ 0x0EC0, 0x0EC4 ], | |
225 [ 0x0EC6, 0x0EC6 ], | |
226 [ 0x0EC8, 0x0ECD ], | |
227 [ 0x0ED0, 0x0ED9 ], | |
228 [ 0x0EDC, 0x0EDD ], | |
229 [ 0x0F00, 0x0F00 ], | |
230 [ 0x0F18, 0x0F19 ], | |
231 [ 0x0F20, 0x0F33 ], | |
232 [ 0x0F35, 0x0F35 ], | |
233 [ 0x0F37, 0x0F37 ], | |
234 [ 0x0F39, 0x0F39 ], | |
235 [ 0x0F3E, 0x0F47 ], | |
236 [ 0x0F49, 0x0F69 ], | |
237 [ 0x0F71, 0x0F84 ], | |
238 [ 0x0F86, 0x0F8B ], | |
239 [ 0x0F90, 0x0F95 ], | |
240 [ 0x0F97, 0x0F97 ], | |
241 [ 0x0F99, 0x0FAD ], | |
242 [ 0x0FB1, 0x0FB7 ], | |
243 [ 0x0FB9, 0x0FB9 ], | |
244 [ 0x10A0, 0x10C5 ], | |
245 [ 0x10D0, 0x10F6 ], | |
246 [ 0x1E00, 0x1E9B ], | |
247 [ 0x1EA0, 0x1EF9 ], | |
248 [ 0x1F00, 0x1F15 ], | |
249 [ 0x1F18, 0x1F1D ], | |
250 [ 0x1F20, 0x1F45 ], | |
251 [ 0x1F48, 0x1F4D ], | |
252 [ 0x1F50, 0x1F57 ], | |
253 [ 0x1F59, 0x1F59 ], | |
254 [ 0x1F5B, 0x1F5B ], | |
255 [ 0x1F5D, 0x1F5D ], | |
256 [ 0x1F5F, 0x1F7D ], | |
257 [ 0x1F80, 0x1FB4 ], | |
258 [ 0x1FB6, 0x1FBC ], | |
259 [ 0x1FBE, 0x1FBE ], | |
260 [ 0x1FC2, 0x1FC4 ], | |
261 [ 0x1FC6, 0x1FCC ], | |
262 [ 0x1FD0, 0x1FD3 ], | |
263 [ 0x1FD6, 0x1FDB ], | |
264 [ 0x1FE0, 0x1FEC ], | |
265 [ 0x1FF2, 0x1FF4 ], | |
266 [ 0x1FF6, 0x1FFC ], | |
267 [ 0x203F, 0x2040 ], | |
268 [ 0x207F, 0x207F ], | |
269 [ 0x2102, 0x2102 ], | |
270 [ 0x2107, 0x2107 ], | |
271 [ 0x210A, 0x2113 ], | |
272 [ 0x2115, 0x2115 ], | |
273 [ 0x2118, 0x211D ], | |
274 [ 0x2124, 0x2124 ], | |
275 [ 0x2126, 0x2126 ], | |
276 [ 0x2128, 0x2128 ], | |
277 [ 0x212A, 0x2131 ], | |
278 [ 0x2133, 0x2138 ], | |
279 [ 0x2160, 0x2182 ], | |
280 [ 0x3005, 0x3007 ], | |
281 [ 0x3021, 0x3029 ], | |
282 [ 0x3041, 0x3093 ], | |
283 [ 0x309B, 0x309C ], | |
284 [ 0x30A1, 0x30F6 ], | |
285 [ 0x30FB, 0x30FC ], | |
286 [ 0x3105, 0x312C ], | |
287 [ 0x4E00, 0x9FA5 ], | |
288 [ 0xAC00, 0xD7A3 ], | |
289 ]; | |
290 | |
291 debug { | |
292 for (int i = 0; i < table.length; i++) | |
293 { | |
294 //printf("%x\n", table[i][0]); | |
295 assert(table[i][0] <= table[i][1]); | |
296 if (i < table.length - 1) | |
297 assert(table[i][1] < table[i + 1][0]); | |
298 } | |
299 } | |
300 | |
301 if (u > 0xD7A3) | |
302 goto Lisnot; | |
303 | |
304 // Binary search | |
305 int mid; | |
306 int low; | |
307 int high; | |
308 | |
309 low = 0; | |
310 high = table.length - 1; | |
311 while (low <= high) | |
312 { | |
313 mid = (low + high) >> 1; | |
314 if (u < table[mid][0]) | |
315 high = mid - 1; | |
316 else if (u > table[mid][1]) | |
317 low = mid + 1; | |
318 else | |
319 goto Lis; | |
320 } | |
321 | |
322 Lisnot: | |
323 debug { | |
324 for (int i = 0; i < table.length; i++) | |
325 { | |
326 assert(u < table[i][0] || u > table[i][1]); | |
327 } | |
328 } | |
329 return false; | |
330 | |
331 Lis: | |
332 debug { | |
333 for (int i = 0; i < table.length; i++) | |
334 { | |
335 if (u >= table[i][0] && u <= table[i][1]) | |
336 return 1; | |
337 } | |
338 assert(0); // should have been in table | |
339 } | |
340 return true; | |
0 | 341 } |
342 | |
178 | 343 import dmd.TObject; |
344 | |
345 class Lexer : TObject | |
0 | 346 { |
347 Loc loc; // for error messages | |
348 | |
349 ubyte* base; // pointer to start of buffer | |
350 ubyte* end; // past end of buffer | |
351 ubyte* p; // current character | |
352 Token token; | |
353 Module mod; | |
354 int doDocComment; // collect doc comment information | |
355 int anyToken; // !=0 means seen at least one token | |
356 int commentToken; // !=0 means comments are TOKcomment's | |
357 | |
358 this(Module mod, ubyte* base, uint begoffset, uint endoffset, int doDocComment, int commentToken) | |
359 { | |
178 | 360 register(); |
0 | 361 loc = Loc(mod, 1); |
178 | 362 |
0 | 363 memset(&token,0,token.sizeof); |
364 this.base = base; | |
365 this.end = base + endoffset; | |
366 p = base + begoffset; | |
367 this.mod = mod; | |
368 this.doDocComment = doDocComment; | |
369 this.anyToken = 0; | |
370 this.commentToken = commentToken; | |
371 //initKeywords(); | |
372 | |
373 /* If first line starts with '#!', ignore the line | |
374 */ | |
375 | |
376 if (p[0] == '#' && p[1] =='!') | |
377 { | |
378 p += 2; | |
379 while (1) | |
178 | 380 { |
0 | 381 ubyte c = *p; |
382 switch (c) | |
383 { | |
384 case '\n': | |
385 p++; | |
386 break; | |
387 | |
388 case '\r': | |
389 p++; | |
390 if (*p == '\n') | |
391 p++; | |
392 break; | |
393 | |
394 case 0: | |
395 case 0x1A: | |
396 break; | |
397 | |
398 default: | |
399 if (c & 0x80) | |
400 { | |
401 uint u = decodeUTF(); | |
402 if (u == PS || u == LS) | |
403 break; | |
404 } | |
405 p++; | |
406 continue; | |
407 } | |
408 break; | |
409 } | |
410 loc.linnum = 2; | |
411 } | |
412 } | |
413 | |
414 version (DMDV2) { | |
169 | 415 enum Keyword[] keywords = |
0 | 416 [ |
417 // { "", TOK }, | |
418 | |
419 { "this", TOK.TOKthis }, | |
420 { "super", TOK.TOKsuper }, | |
421 { "assert", TOK.TOKassert }, | |
422 { "null", TOK.TOKnull }, | |
423 { "true", TOK.TOKtrue }, | |
424 { "false", TOK.TOKfalse }, | |
425 { "cast", TOK.TOKcast }, | |
426 { "new", TOK.TOKnew }, | |
427 { "delete", TOK.TOKdelete }, | |
428 { "throw", TOK.TOKthrow }, | |
429 { "module", TOK.TOKmodule }, | |
430 { "pragma", TOK.TOKpragma }, | |
431 { "typeof", TOK.TOKtypeof }, | |
432 { "typeid", TOK.TOKtypeid }, | |
433 | |
434 { "template", TOK.TOKtemplate }, | |
435 | |
436 { "void", TOK.TOKvoid }, | |
437 { "byte", TOK.TOKint8 }, | |
438 { "ubyte", TOK.TOKuns8 }, | |
439 { "short", TOK.TOKint16 }, | |
440 { "ushort", TOK.TOKuns16 }, | |
441 { "int", TOK.TOKint32 }, | |
442 { "uint", TOK.TOKuns32 }, | |
443 { "long", TOK.TOKint64 }, | |
444 { "ulong", TOK.TOKuns64 }, | |
445 { "cent", TOK.TOKcent, }, | |
446 { "ucent", TOK.TOKucent, }, | |
447 { "float", TOK.TOKfloat32 }, | |
448 { "double", TOK.TOKfloat64 }, | |
449 { "real", TOK.TOKfloat80 }, | |
450 | |
451 { "bool", TOK.TOKbool }, | |
452 { "char", TOK.TOKchar }, | |
453 { "wchar", TOK.TOKwchar }, | |
454 { "dchar", TOK.TOKdchar }, | |
455 | |
456 { "ifloat", TOK.TOKimaginary32 }, | |
457 { "idouble", TOK.TOKimaginary64 }, | |
458 { "ireal", TOK.TOKimaginary80 }, | |
459 | |
460 { "cfloat", TOK.TOKcomplex32 }, | |
461 { "cdouble", TOK.TOKcomplex64 }, | |
462 { "creal", TOK.TOKcomplex80 }, | |
463 | |
464 { "delegate", TOK.TOKdelegate }, | |
465 { "function", TOK.TOKfunction }, | |
466 | |
467 { "is", TOK.TOKis }, | |
468 { "if", TOK.TOKif }, | |
469 { "else", TOK.TOKelse }, | |
470 { "while", TOK.TOKwhile }, | |
471 { "for", TOK.TOKfor }, | |
472 { "do", TOK.TOKdo }, | |
473 { "switch", TOK.TOKswitch }, | |
474 { "case", TOK.TOKcase }, | |
475 { "default", TOK.TOKdefault }, | |
476 { "break", TOK.TOKbreak }, | |
477 { "continue", TOK.TOKcontinue }, | |
478 { "synchronized", TOK.TOKsynchronized }, | |
479 { "return", TOK.TOKreturn }, | |
480 { "goto", TOK.TOKgoto }, | |
481 { "try", TOK.TOKtry }, | |
482 { "catch", TOK.TOKcatch }, | |
483 { "finally", TOK.TOKfinally }, | |
484 { "with", TOK.TOKwith }, | |
485 { "asm", TOK.TOKasm }, | |
486 { "foreach", TOK.TOKforeach }, | |
487 { "foreach_reverse", TOK.TOKforeach_reverse }, | |
488 { "scope", TOK.TOKscope }, | |
489 | |
490 { "struct", TOK.TOKstruct }, | |
491 { "class", TOK.TOKclass }, | |
492 { "interface", TOK.TOKinterface }, | |
493 { "union", TOK.TOKunion }, | |
494 { "enum", TOK.TOKenum }, | |
495 { "import", TOK.TOKimport }, | |
496 { "mixin", TOK.TOKmixin }, | |
497 { "static", TOK.TOKstatic }, | |
498 { "final", TOK.TOKfinal }, | |
499 { "const", TOK.TOKconst }, | |
500 { "typedef", TOK.TOKtypedef }, | |
501 { "alias", TOK.TOKalias }, | |
502 { "override", TOK.TOKoverride }, | |
503 { "abstract", TOK.TOKabstract }, | |
504 { "volatile", TOK.TOKvolatile }, | |
505 { "debug", TOK.TOKdebug }, | |
506 { "deprecated", TOK.TOKdeprecated }, | |
507 { "in", TOK.TOKin }, | |
508 { "out", TOK.TOKout }, | |
509 { "inout", TOK.TOKinout }, | |
510 { "lazy", TOK.TOKlazy }, | |
511 { "auto", TOK.TOKauto }, | |
512 | |
513 { "align", TOK.TOKalign }, | |
514 { "extern", TOK.TOKextern }, | |
515 { "private", TOK.TOKprivate }, | |
516 { "package", TOK.TOKpackage }, | |
517 { "protected", TOK.TOKprotected }, | |
518 { "public", TOK.TOKpublic }, | |
519 { "export", TOK.TOKexport }, | |
520 | |
521 { "body", TOK.TOKbody }, | |
522 { "invariant", TOK.TOKinvariant }, | |
523 { "unittest", TOK.TOKunittest }, | |
524 { "version", TOK.TOKversion }, | |
525 //{ "manifest", TOK.TOKmanifest }, | |
526 | |
527 // Added after 1.0 | |
528 { "ref", TOK.TOKref }, | |
529 { "macro", TOK.TOKmacro }, | |
530 { "pure", TOK.TOKpure }, | |
531 { "nothrow", TOK.TOKnothrow }, | |
532 { "__thread", TOK.TOKtls }, | |
533 { "__gshared", TOK.TOKgshared }, | |
534 { "__traits", TOK.TOKtraits }, | |
535 { "__overloadset", TOK.TOKoverloadset }, | |
536 { "__FILE__", TOK.TOKfile }, | |
537 { "__LINE__", TOK.TOKline }, | |
538 { "shared", TOK.TOKshared }, | |
539 { "immutable", TOK.TOKimmutable }, | |
540 ]; | |
541 } else { | |
169 | 542 enum Keyword[] keywords = |
0 | 543 [ |
544 // { "", TOK }, | |
545 | |
546 { "this", TOK.TOKthis }, | |
547 { "super", TOK.TOKsuper }, | |
548 { "assert", TOK.TOKassert }, | |
549 { "null", TOK.TOKnull }, | |
550 { "true", TOK.TOKtrue }, | |
551 { "false", TOK.TOKfalse }, | |
552 { "cast", TOK.TOKcast }, | |
553 { "new", TOK.TOKnew }, | |
554 { "delete", TOK.TOKdelete }, | |
555 { "throw", TOK.TOKthrow }, | |
556 { "module", TOK.TOKmodule }, | |
557 { "pragma", TOK.TOKpragma }, | |
558 { "typeof", TOK.TOKtypeof }, | |
559 { "typeid", TOK.TOKtypeid }, | |
560 | |
561 { "template", TOK.TOKtemplate }, | |
562 | |
563 { "void", TOK.TOKvoid }, | |
564 { "byte", TOK.TOKint8 }, | |
565 { "ubyte", TOK.TOKuns8 }, | |
566 { "short", TOK.TOKint16 }, | |
567 { "ushort", TOK.TOKuns16 }, | |
568 { "int", TOK.TOKint32 }, | |
569 { "uint", TOK.TOKuns32 }, | |
570 { "long", TOK.TOKint64 }, | |
571 { "ulong", TOK.TOKuns64 }, | |
572 { "cent", TOK.TOKcent, }, | |
573 { "ucent", TOK.TOKucent, }, | |
574 { "float", TOK.TOKfloat32 }, | |
575 { "double", TOK.TOKfloat64 }, | |
576 { "real", TOK.TOKfloat80 }, | |
577 | |
578 { "bool", TOK.TOKbool }, | |
579 { "char", TOK.TOKchar }, | |
580 { "wchar", TOK.TOKwchar }, | |
581 { "dchar", TOK.TOKdchar }, | |
582 | |
583 { "ifloat", TOK.TOKimaginary32 }, | |
584 { "idouble", TOK.TOKimaginary64 }, | |
585 { "ireal", TOK.TOKimaginary80 }, | |
586 | |
587 { "cfloat", TOK.TOKcomplex32 }, | |
588 { "cdouble", TOK.TOKcomplex64 }, | |
589 { "creal", TOK.TOKcomplex80 }, | |
590 | |
591 { "delegate", TOK.TOKdelegate }, | |
592 { "function", TOK.TOKfunction }, | |
593 | |
594 { "is", TOK.TOKis }, | |
595 { "if", TOK.TOKif }, | |
596 { "else", TOK.TOKelse }, | |
597 { "while", TOK.TOKwhile }, | |
598 { "for", TOK.TOKfor }, | |
599 { "do", TOK.TOKdo }, | |
600 { "switch", TOK.TOKswitch }, | |
601 { "case", TOK.TOKcase }, | |
602 { "default", TOK.TOKdefault }, | |
603 { "break", TOK.TOKbreak }, | |
604 { "continue", TOK.TOKcontinue }, | |
605 { "synchronized", TOK.TOKsynchronized }, | |
606 { "return", TOK.TOKreturn }, | |
607 { "goto", TOK.TOKgoto }, | |
608 { "try", TOK.TOKtry }, | |
609 { "catch", TOK.TOKcatch }, | |
610 { "finally", TOK.TOKfinally }, | |
611 { "with", TOK.TOKwith }, | |
612 { "asm", TOK.TOKasm }, | |
613 { "foreach", TOK.TOKforeach }, | |
614 { "foreach_reverse", TOK.TOKforeach_reverse }, | |
615 { "scope", TOK.TOKscope }, | |
616 | |
617 { "struct", TOK.TOKstruct }, | |
618 { "class", TOK.TOKclass }, | |
619 { "interface", TOK.TOKinterface }, | |
620 { "union", TOK.TOKunion }, | |
621 { "enum", TOK.TOKenum }, | |
622 { "import", TOK.TOKimport }, | |
623 { "mixin", TOK.TOKmixin }, | |
624 { "static", TOK.TOKstatic }, | |
625 { "final", TOK.TOKfinal }, | |
626 { "const", TOK.TOKconst }, | |
627 { "typedef", TOK.TOKtypedef }, | |
628 { "alias", TOK.TOKalias }, | |
629 { "override", TOK.TOKoverride }, | |
630 { "abstract", TOK.TOKabstract }, | |
631 { "volatile", TOK.TOKvolatile }, | |
632 { "debug", TOK.TOKdebug }, | |
633 { "deprecated", TOK.TOKdeprecated }, | |
634 { "in", TOK.TOKin }, | |
635 { "out", TOK.TOKout }, | |
636 { "inout", TOK.TOKinout }, | |
637 { "lazy", TOK.TOKlazy }, | |
638 { "auto", TOK.TOKauto }, | |
639 | |
640 { "align", TOK.TOKalign }, | |
641 { "extern", TOK.TOKextern }, | |
642 { "private", TOK.TOKprivate }, | |
643 { "package", TOK.TOKpackage }, | |
644 { "protected", TOK.TOKprotected }, | |
645 { "public", TOK.TOKpublic }, | |
646 { "export", TOK.TOKexport }, | |
647 | |
648 { "body", TOK.TOKbody }, | |
649 { "invariant", TOK.TOKinvariant }, | |
650 { "unittest", TOK.TOKunittest }, | |
651 { "version", TOK.TOKversion }, | |
652 //{ "manifest", TOK.TOKmanifest }, | |
653 | |
654 // Added after 1.0 | |
655 { "ref", TOK.TOKref }, | |
656 { "macro", TOK.TOKmacro }, | |
657 ]; | |
658 } | |
659 | |
174 | 660 static __gshared ubyte cmtable[256]; |
0 | 661 enum CMoctal = 0x1; |
662 enum CMhex = 0x2; | |
663 enum CMidchar = 0x4; | |
178 | 664 |
0 | 665 ubyte isoctal (ubyte c) { return cmtable[c] & CMoctal; } |
666 ubyte ishex (ubyte c) { return cmtable[c] & CMhex; } | |
667 ubyte isidchar(ubyte c) { return cmtable[c] & CMidchar; } | |
668 | |
669 static void cmtable_init() | |
670 { | |
671 for (uint c = 0; c < cmtable.length; c++) | |
672 { | |
673 if ('0' <= c && c <= '7') | |
674 cmtable[c] |= CMoctal; | |
675 if (isdigit(c) || ('a' <= c && c <= 'f') || ('A' <= c && c <= 'F')) | |
676 cmtable[c] |= CMhex; | |
677 if (isalnum(c) || c == '_') | |
678 cmtable[c] |= CMidchar; | |
679 } | |
680 } | |
178 | 681 |
682 static ref StringTable stringtable() | |
168
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683 { |
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684 return global.stringtable; |
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685 } |
178 | 686 |
168
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687 static OutBuffer stringbuffer() |
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688 { |
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689 return global.stringbuffer; |
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690 } |
178 | 691 |
0 | 692 static void initKeywords() |
693 { | |
694 uint nkeywords = keywords.length; | |
695 | |
696 if (global.params.Dversion == 1) | |
697 nkeywords -= 2; | |
698 | |
699 cmtable_init(); | |
178 | 700 |
0 | 701 for (uint u = 0; u < nkeywords; u++) |
702 { | |
34 | 703 //printf("keyword[%d] = '%.*s'\n",u, keywords[u].name); |
0 | 704 string s = keywords[u].name; |
705 TOK v = keywords[u].value; | |
178 | 706 Object* sv = stringtable.insert(s); |
707 *sv = new Identifier(s, v); | |
0 | 708 |
709 //printf("tochars[%d] = '%s'\n",v, s); | |
710 Token.tochars[v] = s; | |
711 } | |
712 | |
713 Token.tochars[TOK.TOKeof] = "EOF"; | |
714 Token.tochars[TOK.TOKlcurly] = "{"; | |
715 Token.tochars[TOK.TOKrcurly] = "}"; | |
716 Token.tochars[TOK.TOKlparen] = "("; | |
717 Token.tochars[TOK.TOKrparen] = ")"; | |
718 Token.tochars[TOK.TOKlbracket] = "["; | |
719 Token.tochars[TOK.TOKrbracket] = "]"; | |
720 Token.tochars[TOK.TOKsemicolon] = ";"; | |
721 Token.tochars[TOK.TOKcolon] = ":"; | |
722 Token.tochars[TOK.TOKcomma] = ","; | |
723 Token.tochars[TOK.TOKdot] = "."; | |
724 Token.tochars[TOK.TOKxor] = "^"; | |
725 Token.tochars[TOK.TOKxorass] = "^="; | |
726 Token.tochars[TOK.TOKassign] = "="; | |
727 Token.tochars[TOK.TOKconstruct] = "="; | |
728 version (DMDV2) { | |
729 Token.tochars[TOK.TOKblit] = "="; | |
730 } | |
731 Token.tochars[TOK.TOKlt] = "<"; | |
732 Token.tochars[TOK.TOKgt] = ">"; | |
733 Token.tochars[TOK.TOKle] = "<="; | |
734 Token.tochars[TOK.TOKge] = ">="; | |
735 Token.tochars[TOK.TOKequal] = "=="; | |
736 Token.tochars[TOK.TOKnotequal] = "!="; | |
737 Token.tochars[TOK.TOKnotidentity] = "!is"; | |
738 Token.tochars[TOK.TOKtobool] = "!!"; | |
739 | |
740 Token.tochars[TOK.TOKunord] = "!<>="; | |
741 Token.tochars[TOK.TOKue] = "!<>"; | |
742 Token.tochars[TOK.TOKlg] = "<>"; | |
743 Token.tochars[TOK.TOKleg] = "<>="; | |
744 Token.tochars[TOK.TOKule] = "!>"; | |
745 Token.tochars[TOK.TOKul] = "!>="; | |
746 Token.tochars[TOK.TOKuge] = "!<"; | |
747 Token.tochars[TOK.TOKug] = "!<="; | |
748 | |
749 Token.tochars[TOK.TOKnot] = "!"; | |
750 Token.tochars[TOK.TOKtobool] = "!!"; | |
751 Token.tochars[TOK.TOKshl] = "<<"; | |
752 Token.tochars[TOK.TOKshr] = ">>"; | |
753 Token.tochars[TOK.TOKushr] = ">>>"; | |
754 Token.tochars[TOK.TOKadd] = "+"; | |
755 Token.tochars[TOK.TOKmin] = "-"; | |
756 Token.tochars[TOK.TOKmul] = "*"; | |
757 Token.tochars[TOK.TOKdiv] = "/"; | |
758 Token.tochars[TOK.TOKmod] = "%"; | |
759 Token.tochars[TOK.TOKslice] = ".."; | |
760 Token.tochars[TOK.TOKdotdotdot] = "..."; | |
761 Token.tochars[TOK.TOKand] = "&"; | |
762 Token.tochars[TOK.TOKandand] = "&&"; | |
763 Token.tochars[TOK.TOKor] = "|"; | |
764 Token.tochars[TOK.TOKoror] = "||"; | |
765 Token.tochars[TOK.TOKarray] = "[]"; | |
766 Token.tochars[TOK.TOKindex] = "[i]"; | |
767 Token.tochars[TOK.TOKaddress] = "&"; | |
768 Token.tochars[TOK.TOKstar] = "*"; | |
769 Token.tochars[TOK.TOKtilde] = "~"; | |
770 Token.tochars[TOK.TOKdollar] = "$"; | |
771 Token.tochars[TOK.TOKcast] = "cast"; | |
772 Token.tochars[TOK.TOKplusplus] = "++"; | |
773 Token.tochars[TOK.TOKminusminus] = "--"; | |
774 Token.tochars[TOK.TOKtype] = "type"; | |
775 Token.tochars[TOK.TOKquestion] = "?"; | |
776 Token.tochars[TOK.TOKneg] = "-"; | |
777 Token.tochars[TOK.TOKuadd] = "+"; | |
778 Token.tochars[TOK.TOKvar] = "var"; | |
779 Token.tochars[TOK.TOKaddass] = "+="; | |
780 Token.tochars[TOK.TOKminass] = "-="; | |
781 Token.tochars[TOK.TOKmulass] = "*="; | |
782 Token.tochars[TOK.TOKdivass] = "/="; | |
783 Token.tochars[TOK.TOKmodass] = "%="; | |
784 Token.tochars[TOK.TOKshlass] = "<<="; | |
785 Token.tochars[TOK.TOKshrass] = ">>="; | |
786 Token.tochars[TOK.TOKushrass] = ">>>="; | |
787 Token.tochars[TOK.TOKandass] = "&="; | |
788 Token.tochars[TOK.TOKorass] = "|="; | |
789 Token.tochars[TOK.TOKcatass] = "~="; | |
790 Token.tochars[TOK.TOKcat] = "~"; | |
791 Token.tochars[TOK.TOKcall] = "call"; | |
792 Token.tochars[TOK.TOKidentity] = "is"; | |
793 Token.tochars[TOK.TOKnotidentity] = "!is"; | |
794 | |
795 Token.tochars[TOK.TOKorass] = "|="; | |
796 Token.tochars[TOK.TOKidentifier] = "identifier"; | |
797 Token.tochars[TOK.TOKat] = "@"; | |
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798 Token.tochars[TOK.TOKpow] = "^^"; |
135 | 799 Token.tochars[TOK.TOKpowass] = "^^="; |
178 | 800 |
0 | 801 // For debugging |
73 | 802 Token.tochars[TOKerror] = "error"; |
0 | 803 Token.tochars[TOK.TOKdotexp] = "dotexp"; |
804 Token.tochars[TOK.TOKdotti] = "dotti"; | |
805 Token.tochars[TOK.TOKdotvar] = "dotvar"; | |
806 Token.tochars[TOK.TOKdottype] = "dottype"; | |
807 Token.tochars[TOK.TOKsymoff] = "symoff"; | |
808 Token.tochars[TOK.TOKarraylength] = "arraylength"; | |
809 Token.tochars[TOK.TOKarrayliteral] = "arrayliteral"; | |
810 Token.tochars[TOK.TOKassocarrayliteral] = "assocarrayliteral"; | |
811 Token.tochars[TOK.TOKstructliteral] = "structliteral"; | |
812 Token.tochars[TOK.TOKstring] = "string"; | |
813 Token.tochars[TOK.TOKdsymbol] = "symbol"; | |
814 Token.tochars[TOK.TOKtuple] = "tuple"; | |
815 Token.tochars[TOK.TOKdeclaration] = "declaration"; | |
816 Token.tochars[TOK.TOKdottd] = "dottd"; | |
817 Token.tochars[TOK.TOKon_scope_exit] = "scope(exit)"; | |
818 Token.tochars[TOK.TOKon_scope_success] = "scope(success)"; | |
819 Token.tochars[TOK.TOKon_scope_failure] = "scope(failure)"; | |
820 } | |
821 | |
822 static Identifier idPool(string s) | |
823 { | |
178 | 824 Object* sv = stringtable.update(s); |
825 Identifier id = cast(Identifier) *sv; | |
0 | 826 if (id is null) |
827 { | |
178 | 828 id = new Identifier(s, TOK.TOKidentifier); |
829 *sv = id; | |
0 | 830 } |
831 | |
832 return id; | |
833 } | |
834 | |
835 static Identifier uniqueId(string s) | |
836 { | |
168
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837 return uniqueId(s, ++global.num); |
0 | 838 } |
839 | |
840 /********************************************* | |
841 * Create a unique identifier using the prefix s. | |
842 */ | |
843 static Identifier uniqueId(string s, int num) | |
844 { | |
845 char buffer[32]; | |
846 size_t slen = s.length; | |
847 | |
848 assert(slen + num.sizeof * 3 + 1 <= buffer.sizeof); | |
849 int len = sprintf(buffer.ptr, "%.*s%d", s, num); | |
850 | |
851 return idPool(buffer[0..len].idup); | |
852 } | |
853 | |
854 TOK nextToken() | |
855 { | |
856 Token *t; | |
857 | |
858 if (token.next) | |
859 { | |
860 t = token.next; | |
861 memcpy(&token, t, Token.sizeof); | |
168
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862 t.next = global.freelist; |
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863 global.freelist = t; |
0 | 864 } |
865 else | |
866 { | |
867 scan(&token); | |
868 } | |
869 | |
870 //token.print(); | |
871 return token.value; | |
872 } | |
873 | |
874 /*********************** | |
875 * Look ahead at next token's value. | |
876 */ | |
877 TOK peekNext() | |
878 { | |
879 return peek(&token).value; | |
880 } | |
881 | |
163 | 882 /*********************** |
883 * Look 2 tokens ahead at value. | |
884 */ | |
0 | 885 TOK peekNext2() |
886 { | |
163 | 887 Token* t = peek(&token); |
888 return peek(t).value; | |
0 | 889 } |
890 | |
891 void scan(Token* t) | |
892 { | |
893 uint lastLine = loc.linnum; | |
894 uint linnum; | |
895 | |
896 t.blockComment = null; | |
897 t.lineComment = null; | |
898 while (1) | |
899 { | |
900 t.ptr = p; | |
901 //printf("p = %p, *p = '%c'\n",p,*p); | |
902 switch (*p) | |
903 { | |
904 case 0: | |
905 case 0x1A: | |
906 t.value = TOK.TOKeof; // end of file | |
907 return; | |
908 | |
909 case ' ': | |
910 case '\t': | |
911 case '\v': | |
912 case '\f': | |
913 p++; | |
914 continue; // skip white space | |
915 | |
916 case '\r': | |
917 p++; | |
918 if (*p != '\n') // if CR stands by itself | |
919 loc.linnum++; | |
920 continue; // skip white space | |
921 | |
922 case '\n': | |
923 p++; | |
924 loc.linnum++; | |
925 continue; // skip white space | |
926 | |
927 case '0': case '1': case '2': case '3': case '4': | |
928 case '5': case '6': case '7': case '8': case '9': | |
929 t.value = number(t); | |
930 return; | |
931 | |
932 version (CSTRINGS) { | |
933 case '\'': | |
934 t.value = charConstant(t, 0); | |
935 return; | |
936 | |
937 case '"': | |
938 t.value = stringConstant(t,0); | |
939 return; | |
940 | |
941 case 'l': | |
942 case 'L': | |
943 if (p[1] == '\'') | |
944 { | |
945 p++; | |
946 t.value = charConstant(t, 1); | |
947 return; | |
948 } | |
949 else if (p[1] == '"') | |
950 { | |
951 p++; | |
952 t.value = stringConstant(t, 1); | |
953 return; | |
954 } | |
955 } else { | |
956 case '\'': | |
957 t.value = charConstant(t,0); | |
958 return; | |
959 | |
960 case 'r': | |
961 if (p[1] != '"') | |
962 goto case_ident; | |
963 p++; | |
964 case '`': | |
965 t.value = wysiwygStringConstant(t, *p); | |
966 return; | |
967 | |
968 case 'x': | |
969 if (p[1] != '"') | |
970 goto case_ident; | |
971 p++; | |
972 t.value = hexStringConstant(t); | |
973 return; | |
974 | |
975 version (DMDV2) { | |
976 case 'q': | |
977 if (p[1] == '"') | |
978 { | |
979 p++; | |
980 t.value = delimitedStringConstant(t); | |
981 return; | |
982 } | |
983 else if (p[1] == '{') | |
984 { | |
985 p++; | |
986 t.value = tokenStringConstant(t); | |
987 return; | |
988 } | |
989 else | |
990 goto case_ident; | |
991 } | |
992 | |
993 case '"': | |
994 t.value = escapeStringConstant(t,0); | |
995 return; | |
996 version (TEXTUAL_ASSEMBLY_OUT) { | |
997 } else { | |
998 case '\\': // escaped string literal | |
999 { uint c; | |
1000 ubyte* pstart = p; | |
1001 | |
1002 stringbuffer.reset(); | |
1003 do | |
1004 { | |
1005 p++; | |
1006 switch (*p) | |
1007 { | |
1008 case 'u': | |
1009 case 'U': | |
1010 case '&': | |
1011 c = escapeSequence(); | |
1012 stringbuffer.writeUTF8(c); | |
1013 break; | |
1014 | |
1015 default: | |
1016 c = escapeSequence(); | |
1017 stringbuffer.writeByte(c); | |
1018 break; | |
1019 } | |
1020 } while (*p == '\\'); | |
1021 t.len = stringbuffer.offset; | |
1022 stringbuffer.writeByte(0); | |
2 | 1023 char* cc = cast(char*)GC.malloc(stringbuffer.offset); |
0 | 1024 memcpy(cc, stringbuffer.data, stringbuffer.offset); |
1025 t.ustring = cc; | |
1026 t.postfix = 0; | |
1027 t.value = TOK.TOKstring; | |
1028 if (!global.params.useDeprecated) | |
1029 error("Escape String literal %.*s is deprecated, use double quoted string literal \"%.*s\" instead", p - pstart, pstart, p - pstart, pstart); | |
1030 return; | |
1031 } | |
1032 } | |
1033 case 'l': | |
1034 case 'L': | |
1035 } | |
1036 case 'a': case 'b': case 'c': case 'd': case 'e': | |
1037 case 'f': case 'g': case 'h': case 'i': case 'j': | |
1038 case 'k': case 'm': case 'n': case 'o': | |
1039 version (DMDV2) { | |
1040 case 'p': /*case 'q': case 'r':*/ case 's': case 't': | |
1041 } else { | |
1042 case 'p': case 'q': /*case 'r':*/ case 's': case 't': | |
1043 } | |
1044 case 'u': case 'v': case 'w': /*case 'x':*/ case 'y': | |
1045 case 'z': | |
1046 case 'A': case 'B': case 'C': case 'D': case 'E': | |
1047 case 'F': case 'G': case 'H': case 'I': case 'J': | |
1048 case 'K': case 'M': case 'N': case 'O': | |
1049 case 'P': case 'Q': case 'R': case 'S': case 'T': | |
1050 case 'U': case 'V': case 'W': case 'X': case 'Y': | |
1051 case 'Z': | |
1052 case '_': | |
1053 case_ident: | |
135 | 1054 { |
1055 ubyte c; | |
0 | 1056 |
135 | 1057 while (1) |
1058 { | |
1059 c = *++p; | |
1060 if (isidchar(c)) | |
1061 continue; | |
1062 else if (c & 0x80) | |
1063 { | |
1064 ubyte *s = p; | |
1065 uint u = decodeUTF(); | |
1066 if (isUniAlpha(u)) | |
1067 continue; | |
1068 error("char 0x%04x not allowed in identifier", u); | |
1069 p = s; | |
1070 } | |
1071 break; | |
1072 } | |
1073 | |
178 | 1074 auto s = cast(string)(t.ptr[0.. p - t.ptr]); |
1075 Object* sv = stringtable.update(s); | |
1076 Identifier id = cast(Identifier) *sv; | |
1077 | |
0 | 1078 if (id is null) |
178 | 1079 { |
1080 id = new Identifier(s, TOK.TOKidentifier); | |
1081 *sv = id; | |
0 | 1082 } |
1083 t.ident = id; | |
1084 t.value = cast(TOK) id.value; | |
1085 anyToken = 1; | |
1086 if (*t.ptr == '_') // if special identifier token | |
1087 { | |
1088 ///version (DMDV1) { | |
1089 /// if (mod && id == Id.FILE) | |
1090 /// { | |
1091 /// t.ustring = cast(ubyte*)(loc.filename ? loc.filename : mod.ident.toChars()); | |
1092 /// goto Lstr; | |
1093 /// } | |
1094 /// else if (mod && id == Id.LINE) | |
1095 /// { | |
1096 /// t.value = TOK.TOKint64v; | |
1097 /// t.uns64value = loc.linnum; | |
1098 /// } | |
1099 /// else | |
1100 ///} | |
1101 if (id == Id.DATE) | |
1102 { | |
169 | 1103 t.ustring = global.date.ptr; |
0 | 1104 goto Lstr; |
1105 } | |
1106 else if (id == Id.TIME) | |
1107 { | |
169 | 1108 t.ustring = global.time.ptr; |
0 | 1109 goto Lstr; |
1110 } | |
1111 else if (id == Id.VENDOR) | |
1112 { | |
1113 t.ustring = "Digital Mars D".ptr; | |
1114 goto Lstr; | |
1115 } | |
1116 else if (id == Id.TIMESTAMP) | |
1117 { | |
169 | 1118 t.ustring = global.timestamp.ptr; |
0 | 1119 Lstr: |
1120 t.value = TOK.TOKstring; | |
1121 Llen: | |
1122 t.postfix = 0; | |
1123 t.len = strlen(cast(char*)t.ustring); | |
1124 } | |
1125 else if (id == Id.VERSIONX) | |
1126 { | |
1127 uint major = 0; | |
1128 uint minor = 0; | |
1129 | |
1130 foreach (char cc; global.version_[1..$]) | |
1131 { | |
1132 if (isdigit(cc)) | |
1133 minor = minor * 10 + cc - '0'; | |
1134 else if (cc == '.') | |
1135 { | |
1136 major = minor; | |
1137 minor = 0; | |
1138 } | |
1139 else | |
1140 break; | |
1141 } | |
1142 t.value = TOK.TOKint64v; | |
1143 t.uns64value = major * 1000 + minor; | |
1144 } | |
1145 ///version (DMDV2) { | |
1146 else if (id == Id.EOFX) | |
1147 { | |
1148 t.value = TOK.TOKeof; | |
1149 // Advance scanner to end of file | |
1150 while (!(*p == 0 || *p == 0x1A)) | |
1151 p++; | |
1152 } | |
1153 ///} | |
1154 } | |
1155 //printf("t.value = %d\n",t.value); | |
1156 return; | |
1157 } | |
1158 | |
1159 case '/': | |
1160 p++; | |
1161 switch (*p) | |
1162 { | |
1163 case '=': | |
1164 p++; | |
1165 t.value = TOK.TOKdivass; | |
1166 return; | |
1167 | |
1168 case '*': | |
1169 p++; | |
1170 linnum = loc.linnum; | |
1171 while (1) | |
1172 { | |
1173 while (1) | |
1174 { | |
1175 ubyte c = *p; | |
1176 switch (c) | |
1177 { | |
1178 case '/': | |
1179 break; | |
1180 | |
1181 case '\n': | |
1182 loc.linnum++; | |
1183 p++; | |
1184 continue; | |
1185 | |
1186 case '\r': | |
1187 p++; | |
1188 if (*p != '\n') | |
1189 loc.linnum++; | |
1190 continue; | |
1191 | |
1192 case 0: | |
1193 case 0x1A: | |
1194 error("unterminated /* */ comment"); | |
1195 p = end; | |
1196 t.value = TOK.TOKeof; | |
1197 return; | |
1198 | |
1199 default: | |
1200 if (c & 0x80) | |
1201 { uint u = decodeUTF(); | |
1202 if (u == PS || u == LS) | |
1203 loc.linnum++; | |
1204 } | |
1205 p++; | |
1206 continue; | |
1207 } | |
1208 break; | |
1209 } | |
1210 p++; | |
1211 if (p[-2] == '*' && p - 3 != t.ptr) | |
1212 break; | |
1213 } | |
1214 if (commentToken) | |
1215 { | |
1216 t.value = TOK.TOKcomment; | |
1217 return; | |
1218 } | |
1219 else if (doDocComment && t.ptr[2] == '*' && p - 4 != t.ptr) | |
1220 { // if /** but not /**/ | |
1221 getDocComment(t, lastLine == linnum); | |
1222 } | |
1223 continue; | |
1224 | |
1225 case '/': // do // style comments | |
1226 linnum = loc.linnum; | |
1227 while (1) | |
1228 { ubyte c = *++p; | |
1229 switch (c) | |
1230 { | |
1231 case '\n': | |
1232 break; | |
1233 | |
1234 case '\r': | |
1235 if (p[1] == '\n') | |
1236 p++; | |
1237 break; | |
1238 | |
1239 case 0: | |
1240 case 0x1A: | |
1241 if (commentToken) | |
1242 { | |
1243 p = end; | |
1244 t.value = TOK.TOKcomment; | |
1245 return; | |
1246 } | |
157
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1247 if (doDocComment && t.ptr[2] == '/' || t.ptr[2] == '!') // '///' or '//!' |
0 | 1248 getDocComment(t, lastLine == linnum); |
1249 p = end; | |
1250 t.value = TOK.TOKeof; | |
1251 return; | |
1252 | |
1253 default: | |
1254 if (c & 0x80) | |
1255 { uint u = decodeUTF(); | |
1256 if (u == PS || u == LS) | |
1257 break; | |
1258 } | |
1259 continue; | |
1260 } | |
1261 break; | |
1262 } | |
1263 | |
1264 if (commentToken) | |
1265 { | |
1266 p++; | |
1267 loc.linnum++; | |
1268 t.value = TOK.TOKcomment; | |
1269 return; | |
1270 } | |
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1271 if (doDocComment && t.ptr[2] == '/' || t.ptr[2] == '!') // '///' or '//!' |
0 | 1272 getDocComment(t, lastLine == linnum); |
1273 | |
1274 p++; | |
1275 loc.linnum++; | |
1276 continue; | |
1277 | |
1278 case '+': | |
1279 { | |
1280 int nest; | |
1281 | |
1282 linnum = loc.linnum; | |
1283 p++; | |
1284 nest = 1; | |
1285 while (1) | |
1286 { ubyte c = *p; | |
1287 switch (c) | |
1288 { | |
1289 case '/': | |
1290 p++; | |
1291 if (*p == '+') | |
1292 { | |
1293 p++; | |
1294 nest++; | |
1295 } | |
1296 continue; | |
1297 | |
1298 case '+': | |
1299 p++; | |
1300 if (*p == '/') | |
1301 { | |
1302 p++; | |
1303 if (--nest == 0) | |
1304 break; | |
1305 } | |
1306 continue; | |
1307 | |
1308 case '\r': | |
1309 p++; | |
1310 if (*p != '\n') | |
1311 loc.linnum++; | |
1312 continue; | |
1313 | |
1314 case '\n': | |
1315 loc.linnum++; | |
1316 p++; | |
1317 continue; | |
1318 | |
1319 case 0: | |
1320 case 0x1A: | |
1321 error("unterminated /+ +/ comment"); | |
1322 p = end; | |
1323 t.value = TOK.TOKeof; | |
1324 return; | |
1325 | |
1326 default: | |
1327 if (c & 0x80) | |
1328 { uint u = decodeUTF(); | |
1329 if (u == PS || u == LS) | |
1330 loc.linnum++; | |
1331 } | |
1332 p++; | |
1333 continue; | |
1334 } | |
1335 break; | |
1336 } | |
1337 if (commentToken) | |
1338 { | |
1339 t.value = TOK.TOKcomment; | |
1340 return; | |
1341 } | |
1342 if (doDocComment && t.ptr[2] == '+' && p - 4 != t.ptr) | |
1343 { // if /++ but not /++/ | |
1344 getDocComment(t, lastLine == linnum); | |
1345 } | |
1346 continue; | |
1347 } | |
178 | 1348 |
0 | 1349 default: |
1350 break; /// | |
1351 } | |
1352 t.value = TOK.TOKdiv; | |
1353 return; | |
1354 | |
1355 case '.': | |
1356 p++; | |
1357 if (isdigit(*p)) | |
1358 { /* Note that we don't allow ._1 and ._ as being | |
1359 * valid floating point numbers. | |
1360 */ | |
1361 p--; | |
1362 t.value = inreal(t); | |
1363 } | |
1364 else if (p[0] == '.') | |
1365 { | |
1366 if (p[1] == '.') | |
1367 { p += 2; | |
1368 t.value = TOK.TOKdotdotdot; | |
1369 } | |
1370 else | |
1371 { p++; | |
1372 t.value = TOK.TOKslice; | |
1373 } | |
1374 } | |
1375 else | |
1376 t.value = TOK.TOKdot; | |
1377 return; | |
1378 | |
1379 case '&': | |
1380 p++; | |
1381 if (*p == '=') | |
1382 { p++; | |
1383 t.value = TOK.TOKandass; | |
1384 } | |
1385 else if (*p == '&') | |
1386 { p++; | |
1387 t.value = TOK.TOKandand; | |
1388 } | |
1389 else | |
1390 t.value = TOK.TOKand; | |
1391 return; | |
1392 | |
1393 case '|': | |
1394 p++; | |
1395 if (*p == '=') | |
1396 { p++; | |
1397 t.value = TOK.TOKorass; | |
1398 } | |
1399 else if (*p == '|') | |
1400 { p++; | |
1401 t.value = TOK.TOKoror; | |
1402 } | |
1403 else | |
1404 t.value = TOK.TOKor; | |
1405 return; | |
1406 | |
1407 case '-': | |
1408 p++; | |
1409 if (*p == '=') | |
1410 { p++; | |
1411 t.value = TOK.TOKminass; | |
1412 } | |
1413 /// #if 0 | |
1414 /// else if (*p == '>') | |
1415 /// { p++; | |
1416 /// t.value = TOK.TOKarrow; | |
1417 /// } | |
1418 /// #endif | |
1419 else if (*p == '-') | |
1420 { p++; | |
1421 t.value = TOK.TOKminusminus; | |
1422 } | |
1423 else | |
1424 t.value = TOK.TOKmin; | |
1425 return; | |
1426 | |
1427 case '+': | |
1428 p++; | |
1429 if (*p == '=') | |
1430 { p++; | |
1431 t.value = TOK.TOKaddass; | |
1432 } | |
1433 else if (*p == '+') | |
1434 { p++; | |
1435 t.value = TOK.TOKplusplus; | |
1436 } | |
1437 else | |
1438 t.value = TOK.TOKadd; | |
1439 return; | |
1440 | |
1441 case '<': | |
1442 p++; | |
1443 if (*p == '=') | |
1444 { p++; | |
1445 t.value = TOK.TOKle; // <= | |
1446 } | |
1447 else if (*p == '<') | |
1448 { p++; | |
1449 if (*p == '=') | |
1450 { p++; | |
1451 t.value = TOK.TOKshlass; // <<= | |
1452 } | |
1453 else | |
1454 t.value = TOK.TOKshl; // << | |
1455 } | |
1456 else if (*p == '>') | |
1457 { p++; | |
1458 if (*p == '=') | |
1459 { p++; | |
1460 t.value = TOK.TOKleg; // <>= | |
1461 } | |
1462 else | |
1463 t.value = TOK.TOKlg; // <> | |
1464 } | |
1465 else | |
1466 t.value = TOK.TOKlt; // < | |
1467 return; | |
1468 | |
1469 case '>': | |
1470 p++; | |
1471 if (*p == '=') | |
1472 { p++; | |
1473 t.value = TOK.TOKge; // >= | |
1474 } | |
1475 else if (*p == '>') | |
1476 { p++; | |
1477 if (*p == '=') | |
1478 { p++; | |
1479 t.value = TOK.TOKshrass; // >>= | |
1480 } | |
1481 else if (*p == '>') | |
1482 { p++; | |
1483 if (*p == '=') | |
1484 { p++; | |
1485 t.value = TOK.TOKushrass; // >>>= | |
1486 } | |
1487 else | |
1488 t.value = TOK.TOKushr; // >>> | |
1489 } | |
1490 else | |
1491 t.value = TOK.TOKshr; // >> | |
1492 } | |
1493 else | |
1494 t.value = TOK.TOKgt; // > | |
1495 return; | |
1496 | |
1497 case '!': | |
1498 p++; | |
1499 if (*p == '=') | |
1500 { p++; | |
1501 if (*p == '=' && global.params.Dversion == 1) | |
1502 { p++; | |
1503 t.value = TOK.TOKnotidentity; // !== | |
1504 } | |
1505 else | |
1506 t.value = TOK.TOKnotequal; // != | |
1507 } | |
1508 else if (*p == '<') | |
1509 { p++; | |
1510 if (*p == '>') | |
1511 { p++; | |
1512 if (*p == '=') | |
1513 { p++; | |
1514 t.value = TOK.TOKunord; // !<>= | |
1515 } | |
1516 else | |
1517 t.value = TOK.TOKue; // !<> | |
1518 } | |
1519 else if (*p == '=') | |
1520 { p++; | |
1521 t.value = TOK.TOKug; // !<= | |
1522 } | |
1523 else | |
1524 t.value = TOK.TOKuge; // !< | |
1525 } | |
1526 else if (*p == '>') | |
1527 { p++; | |
1528 if (*p == '=') | |
1529 { p++; | |
1530 t.value = TOK.TOKul; // !>= | |
1531 } | |
1532 else | |
1533 t.value = TOK.TOKule; // !> | |
1534 } | |
1535 else | |
1536 t.value = TOK.TOKnot; // ! | |
1537 return; | |
1538 | |
1539 case '=': | |
1540 p++; | |
1541 if (*p == '=') | |
1542 { p++; | |
1543 if (*p == '=' && global.params.Dversion == 1) | |
1544 { p++; | |
1545 t.value = TOK.TOKidentity; // === | |
1546 } | |
1547 else | |
1548 t.value = TOK.TOKequal; // == | |
1549 } | |
1550 else | |
1551 t.value = TOK.TOKassign; // = | |
1552 return; | |
1553 | |
1554 case '~': | |
1555 p++; | |
1556 if (*p == '=') | |
1557 { p++; | |
1558 t.value = TOK.TOKcatass; // ~= | |
1559 } | |
1560 else | |
1561 t.value = TOK.TOKtilde; // ~ | |
1562 return; | |
178 | 1563 |
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1564 version(DMDV2) { |
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1565 case '^': |
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|
1566 p++; |
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diff
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|
1567 if (*p == '^') |
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diff
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|
1568 { p++; |
135 | 1569 if (*p == '=') |
1570 { p++; | |
1571 t.value = TOKpowass; // ^^= | |
1572 } | |
1573 else | |
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1574 t.value = TOKpow; // ^^ |
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1575 } |
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|
1576 else if (*p == '=') |
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|
1577 { p++; |
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diff
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|
1578 t.value = TOKxorass; // ^= |
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|
1579 } |
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|
1580 else |
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diff
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|
1581 t.value = TOKxor; // ^ |
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|
1582 return; |
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|
1583 } |
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|
1584 |
0 | 1585 /* |
1586 #define SINGLE(c,tok) case c: p++; t.value = tok; return; | |
1587 | |
1588 SINGLE('(', TOKlparen) | |
1589 SINGLE(')', TOKrparen) | |
1590 SINGLE('[', TOKlbracket) | |
1591 SINGLE(']', TOKrbracket) | |
1592 SINGLE('{', TOKlcurly) | |
1593 SINGLE('}', TOKrcurly) | |
1594 SINGLE('?', TOKquestion) | |
1595 SINGLE(',', TOKcomma) | |
1596 SINGLE(';', TOKsemicolon) | |
1597 SINGLE(':', TOKcolon) | |
1598 SINGLE('$', TOKdollar) | |
1599 SINGLE('@', TOKat) | |
1600 | |
1601 #undef SINGLE | |
1602 | |
1603 #define DOUBLE(c1,tok1,c2,tok2) \ | |
1604 case c1: \ | |
1605 p++; \ | |
1606 if (*p == c2) \ | |
1607 { p++; \ | |
1608 t.value = tok2; \ | |
1609 } \ | |
1610 else \ | |
1611 t.value = tok1; \ | |
1612 return; | |
1613 | |
1614 DOUBLE('*', TOKmul, '=', TOKmulass) | |
1615 DOUBLE('%', TOKmod, '=', TOKmodass) | |
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1616 #if DMDV1 |
0 | 1617 DOUBLE('^', TOKxor, '=', TOKxorass) |
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1618 #endif |
0 | 1619 #undef DOUBLE |
1620 */ | |
1621 | |
1622 case '(': p++; t.value = TOK.TOKlparen; return; | |
1623 case ')': p++; t.value = TOK.TOKrparen; return; | |
1624 case '[': p++; t.value = TOK.TOKlbracket; return; | |
1625 case ']': p++; t.value = TOK.TOKrbracket; return; | |
1626 case '{': p++; t.value = TOK.TOKlcurly; return; | |
1627 case '}': p++; t.value = TOK.TOKrcurly; return; | |
1628 case '?': p++; t.value = TOK.TOKquestion; return; | |
1629 case ',': p++; t.value = TOK.TOKcomma; return; | |
1630 case ';': p++; t.value = TOK.TOKsemicolon; return; | |
1631 case ':': p++; t.value = TOK.TOKcolon; return; | |
1632 case '$': p++; t.value = TOK.TOKdollar; return; | |
1633 case '@': p++; t.value = TOK.TOKat; return; | |
1634 | |
1635 case '*': | |
1636 p++; | |
1637 if (*p == '=') { | |
1638 p++; | |
1639 t.value = TOK.TOKmulass; | |
1640 } else { | |
1641 t.value = TOK.TOKmul; | |
1642 } | |
1643 return; | |
178 | 1644 |
0 | 1645 case '%': |
1646 p++; | |
1647 if (*p == '=') { | |
1648 p++; | |
1649 t.value = TOK.TOKmodass; | |
1650 } else { | |
1651 t.value = TOK.TOKmod; | |
1652 } | |
1653 return; | |
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|
1654 version(DMDV1) { |
0 | 1655 case '^': |
1656 p++; | |
1657 if (*p == '=') { | |
1658 p++; | |
1659 t.value = TOK.TOKxorass; | |
1660 } else { | |
1661 t.value = TOK.TOKxor; | |
1662 } | |
1663 return; | |
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1664 } |
0 | 1665 case '#': |
1666 p++; | |
1667 pragma_(); | |
1668 continue; | |
1669 | |
1670 default: | |
135 | 1671 { uint c = *p; |
0 | 1672 |
1673 if (c & 0x80) | |
135 | 1674 { c = decodeUTF(); |
0 | 1675 |
1676 // Check for start of unicode identifier | |
135 | 1677 if (isUniAlpha(c)) |
0 | 1678 goto case_ident; |
1679 | |
135 | 1680 if (c == PS || c == LS) |
0 | 1681 { |
1682 loc.linnum++; | |
1683 p++; | |
1684 continue; | |
1685 } | |
1686 } | |
135 | 1687 if (c < 0x80 && isprint(c)) |
0 | 1688 error("unsupported char '%c'", c); |
1689 else | |
1690 error("unsupported char 0x%02x", c); | |
1691 p++; | |
1692 continue; | |
1693 } | |
1694 } | |
1695 } | |
1696 } | |
1697 | |
1698 Token* peek(Token* ct) | |
1699 { | |
1700 Token* t; | |
1701 | |
1702 if (ct.next) | |
1703 t = ct.next; | |
1704 else | |
1705 { | |
1706 t = new Token(); | |
1707 scan(t); | |
1708 t.next = null; | |
1709 ct.next = t; | |
1710 } | |
1711 return t; | |
1712 } | |
1713 | |
1714 Token* peekPastParen(Token* tk) | |
1715 { | |
1716 //printf("peekPastParen()\n"); | |
1717 int parens = 1; | |
1718 int curlynest = 0; | |
1719 while (1) | |
1720 { | |
1721 tk = peek(tk); | |
1722 //tk.print(); | |
1723 switch (tk.value) | |
1724 { | |
1725 case TOK.TOKlparen: | |
1726 parens++; | |
1727 continue; | |
1728 | |
1729 case TOK.TOKrparen: | |
1730 --parens; | |
1731 if (parens) | |
1732 continue; | |
1733 tk = peek(tk); | |
1734 break; | |
1735 | |
1736 case TOK.TOKlcurly: | |
1737 curlynest++; | |
1738 continue; | |
1739 | |
1740 case TOK.TOKrcurly: | |
1741 if (--curlynest >= 0) | |
1742 continue; | |
1743 break; | |
1744 | |
1745 case TOK.TOKsemicolon: | |
1746 if (curlynest) | |
1747 continue; | |
1748 break; | |
1749 | |
1750 case TOK.TOKeof: | |
1751 break; | |
1752 | |
1753 default: | |
1754 continue; | |
1755 } | |
1756 return tk; | |
1757 } | |
1758 } | |
1759 | |
1760 /******************************************* | |
1761 * Parse escape sequence. | |
1762 */ | |
1763 uint escapeSequence() | |
1764 { | |
1765 uint c = *p; | |
1766 | |
1767 version (TEXTUAL_ASSEMBLY_OUT) { | |
1768 return c; | |
1769 } | |
1770 int n; | |
1771 int ndigits; | |
1772 | |
1773 switch (c) | |
1774 { | |
1775 case '\'': | |
1776 case '"': | |
1777 case '?': | |
1778 case '\\': | |
1779 Lconsume: | |
1780 p++; | |
1781 break; | |
1782 | |
1783 case 'a': c = 7; goto Lconsume; | |
1784 case 'b': c = 8; goto Lconsume; | |
1785 case 'f': c = 12; goto Lconsume; | |
1786 case 'n': c = 10; goto Lconsume; | |
1787 case 'r': c = 13; goto Lconsume; | |
1788 case 't': c = 9; goto Lconsume; | |
1789 case 'v': c = 11; goto Lconsume; | |
1790 | |
1791 case 'u': | |
1792 ndigits = 4; | |
1793 goto Lhex; | |
1794 case 'U': | |
1795 ndigits = 8; | |
1796 goto Lhex; | |
1797 case 'x': | |
1798 ndigits = 2; | |
1799 Lhex: | |
1800 p++; | |
1801 c = *p; | |
1802 if (ishex(cast(ubyte)c)) | |
178 | 1803 { |
0 | 1804 uint v; |
1805 | |
1806 n = 0; | |
1807 v = 0; | |
1808 while (1) | |
1809 { | |
1810 if (isdigit(c)) | |
1811 c -= '0'; | |
1812 else if (islower(c)) | |
1813 c -= 'a' - 10; | |
1814 else | |
1815 c -= 'A' - 10; | |
1816 v = v * 16 + c; | |
1817 c = *++p; | |
1818 if (++n == ndigits) | |
1819 break; | |
1820 if (!ishex(cast(ubyte)c)) | |
1821 { error("escape hex sequence has %d hex digits instead of %d", n, ndigits); | |
1822 break; | |
1823 } | |
1824 } | |
1825 if (ndigits != 2 && !utf_isValidDchar(v)) | |
1826 { error("invalid UTF character \\U%08x", v); | |
1827 v = '?'; // recover with valid UTF character | |
1828 } | |
1829 c = v; | |
1830 } | |
1831 else | |
1832 error("undefined escape hex sequence \\%c\n",c); | |
1833 break; | |
1834 | |
1835 case '&': // named character entity | |
1836 for (ubyte* idstart = ++p; true; p++) | |
1837 { | |
1838 switch (*p) | |
1839 { | |
1840 case ';': | |
1841 c = HtmlNamedEntity(idstart, p - idstart); | |
1842 if (c == ~0) | |
178 | 1843 { |
0 | 1844 error("unnamed character entity &%s;", idstart[0..(p - idstart)]); |
1845 c = ' '; | |
1846 } | |
1847 p++; | |
1848 break; | |
1849 | |
1850 default: | |
1851 if (isalpha(*p) || | |
1852 (p != idstart + 1 && isdigit(*p))) | |
1853 continue; | |
1854 error("unterminated named entity"); | |
1855 break; | |
1856 } | |
1857 break; | |
1858 } | |
1859 break; | |
1860 | |
1861 case 0: | |
1862 case 0x1A: // end of file | |
1863 c = '\\'; | |
1864 break; | |
1865 | |
1866 default: | |
1867 if (isoctal(cast(ubyte)c)) | |
178 | 1868 { |
0 | 1869 uint v; |
1870 | |
1871 n = 0; | |
1872 v = 0; | |
1873 do | |
1874 { | |
1875 v = v * 8 + (c - '0'); | |
1876 c = *++p; | |
1877 } while (++n < 3 && isoctal(cast(ubyte)c)); | |
1878 c = v; | |
1879 if (c > 0xFF) | |
1880 error("0%03o is larger than a byte", c); | |
1881 } | |
1882 else | |
1883 error("undefined escape sequence \\%c\n",c); | |
1884 break; | |
1885 } | |
1886 return c; | |
1887 } | |
1888 | |
1889 TOK wysiwygStringConstant(Token* t, int tc) | |
1890 { | |
8
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1891 uint c; |
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1892 Loc start = loc; |
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1893 |
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1894 p++; |
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1895 stringbuffer.reset(); |
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1896 while (true) |
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1897 { |
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1898 c = *p++; |
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1899 switch (c) |
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1900 { |
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1901 case '\n': |
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1902 loc.linnum++; |
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1903 break; |
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1904 |
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1905 case '\r': |
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1906 if (*p == '\n') |
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1907 continue; // ignore |
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1908 c = '\n'; // treat EndOfLine as \n character |
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1909 loc.linnum++; |
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1910 break; |
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1911 |
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1912 case 0: |
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1913 case 0x1A: |
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1914 error("unterminated string constant starting at %s", start.toChars()); |
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1915 t.ustring = "".ptr; |
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1916 t.len = 0; |
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1917 t.postfix = 0; |
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1918 return TOKstring; |
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1919 |
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1920 case '"': |
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1921 case '`': |
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1922 if (c == tc) |
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1923 { |
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1924 t.len = stringbuffer.offset; |
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1925 stringbuffer.writeByte(0); |
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1926 char* tmp = cast(char*)GC.malloc(stringbuffer.offset); |
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1927 memcpy(tmp, stringbuffer.data, stringbuffer.offset); |
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1928 t.ustring = tmp; |
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1929 stringPostfix(t); |
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1930 return TOKstring; |
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1931 } |
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1932 break; |
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1933 |
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1934 default: |
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1935 if (c & 0x80) |
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1936 { p--; |
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1937 uint u = decodeUTF(); |
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1938 p++; |
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1939 if (u == PS || u == LS) |
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|
1940 loc.linnum++; |
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|
1941 stringbuffer.writeUTF8(u); |
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1942 continue; |
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|
1943 } |
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1944 break; |
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|
1945 } |
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1946 stringbuffer.writeByte(c); |
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|
1947 } |
178 | 1948 |
0 | 1949 assert(false); |
1950 } | |
1951 | |
51 | 1952 /************************************** |
1953 * Lex hex strings: | |
1954 * x"0A ae 34FE BD" | |
1955 */ | |
0 | 1956 TOK hexStringConstant(Token* t) |
1957 { | |
51 | 1958 uint c; |
1959 Loc start = loc; | |
1960 uint n = 0; | |
1961 uint v; | |
1962 | |
1963 p++; | |
1964 stringbuffer.reset(); | |
1965 while (1) | |
1966 { | |
1967 c = *p++; | |
1968 switch (c) | |
1969 { | |
1970 case ' ': | |
1971 case '\t': | |
1972 case '\v': | |
1973 case '\f': | |
1974 continue; // skip white space | |
1975 | |
1976 case '\r': | |
1977 if (*p == '\n') | |
1978 continue; // ignore | |
1979 // Treat isolated '\r' as if it were a '\n' | |
1980 case '\n': | |
1981 loc.linnum++; | |
1982 continue; | |
1983 | |
1984 case 0: | |
1985 case 0x1A: | |
1986 error("unterminated string constant starting at %s", start.toChars()); | |
1987 t.ustring = "".ptr; | |
1988 t.len = 0; | |
1989 t.postfix = 0; | |
1990 return TOKstring; | |
1991 | |
1992 case '"': | |
1993 if (n & 1) | |
178 | 1994 { |
51 | 1995 error("odd number (%d) of hex characters in hex string", n); |
1996 stringbuffer.writeByte(v); | |
1997 } | |
1998 t.len = stringbuffer.offset; | |
1999 stringbuffer.writeByte(0); | |
175 | 2000 void* mem = GC.malloc(stringbuffer.offset); |
51 | 2001 memcpy(mem, stringbuffer.data, stringbuffer.offset); |
2002 t.ustring = cast(const(char)*)mem; | |
2003 stringPostfix(t); | |
2004 return TOKstring; | |
2005 | |
2006 default: | |
2007 if (c >= '0' && c <= '9') | |
2008 c -= '0'; | |
2009 else if (c >= 'a' && c <= 'f') | |
2010 c -= 'a' - 10; | |
2011 else if (c >= 'A' && c <= 'F') | |
2012 c -= 'A' - 10; | |
2013 else if (c & 0x80) | |
2014 { p--; | |
2015 uint u = decodeUTF(); | |
2016 p++; | |
2017 if (u == PS || u == LS) | |
2018 loc.linnum++; | |
2019 else | |
135 | 2020 error("non-hex character \\u%04x", u); |
51 | 2021 } |
2022 else | |
2023 error("non-hex character '%c'", c); | |
2024 if (n & 1) | |
2025 { v = (v << 4) | c; | |
2026 stringbuffer.writeByte(v); | |
2027 } | |
2028 else | |
2029 v = c; | |
2030 n++; | |
2031 break; | |
2032 } | |
2033 } | |
0 | 2034 } |
2035 | |
2036 version (DMDV2) { | |
51 | 2037 /************************************** |
2038 * Lex delimited strings: | |
2039 * q"(foo(xxx))" // "foo(xxx)" | |
2040 * q"[foo(]" // "foo(" | |
2041 * q"/foo]/" // "foo]" | |
2042 * q"HERE | |
2043 * foo | |
2044 * HERE" // "foo\n" | |
2045 * Input: | |
2046 * p is on the " | |
2047 */ | |
0 | 2048 TOK delimitedStringConstant(Token* t) |
2049 { | |
51 | 2050 uint c; |
2051 Loc start = loc; | |
2052 uint delimleft = 0; | |
2053 uint delimright = 0; | |
2054 uint nest = 1; | |
2055 uint nestcount; | |
2056 Identifier hereid = null; | |
2057 uint blankrol = 0; | |
2058 uint startline = 0; | |
2059 | |
2060 p++; | |
2061 stringbuffer.reset(); | |
2062 while (1) | |
2063 { | |
2064 c = *p++; | |
2065 //printf("c = '%c'\n", c); | |
2066 switch (c) | |
2067 { | |
2068 case '\n': | |
2069 Lnextline: | |
2070 loc.linnum++; | |
2071 startline = 1; | |
2072 if (blankrol) | |
2073 { blankrol = 0; | |
2074 continue; | |
2075 } | |
2076 if (hereid) | |
2077 { | |
2078 stringbuffer.writeUTF8(c); | |
2079 continue; | |
2080 } | |
2081 break; | |
2082 | |
2083 case '\r': | |
2084 if (*p == '\n') | |
2085 continue; // ignore | |
2086 c = '\n'; // treat EndOfLine as \n character | |
2087 goto Lnextline; | |
2088 | |
2089 case 0: | |
2090 case 0x1A: | |
2091 goto Lerror; | |
2092 | |
2093 default: | |
2094 if (c & 0x80) | |
2095 { p--; | |
2096 c = decodeUTF(); | |
2097 p++; | |
2098 if (c == PS || c == LS) | |
2099 goto Lnextline; | |
2100 } | |
2101 break; | |
2102 } | |
2103 if (delimleft == 0) | |
178 | 2104 { |
51 | 2105 delimleft = c; |
2106 nest = 1; | |
2107 nestcount = 1; | |
2108 if (c == '(') | |
2109 delimright = ')'; | |
2110 else if (c == '{') | |
2111 delimright = '}'; | |
2112 else if (c == '[') | |
2113 delimright = ']'; | |
2114 else if (c == '<') | |
2115 delimright = '>'; | |
2116 else if (isalpha(c) || c == '_' || (c >= 0x80 && isUniAlpha(c))) | |
178 | 2117 { |
51 | 2118 // Start of identifier; must be a heredoc |
2119 Token t2; | |
2120 p--; | |
2121 scan(&t2); // read in heredoc identifier | |
2122 if (t2.value != TOKidentifier) | |
178 | 2123 { |
51 | 2124 error("identifier expected for heredoc, not %s", t2.toChars()); |
2125 delimright = c; | |
2126 } | |
2127 else | |
178 | 2128 { |
51 | 2129 hereid = t2.ident; |
2130 //printf("hereid = '%s'\n", hereid.toChars()); | |
2131 blankrol = 1; | |
2132 } | |
2133 nest = 0; | |
2134 } | |
2135 else | |
178 | 2136 { |
51 | 2137 delimright = c; |
2138 nest = 0; | |
2139 if (isspace(c)) | |
2140 error("delimiter cannot be whitespace"); | |
2141 } | |
2142 } | |
2143 else | |
2144 { | |
2145 if (blankrol) | |
178 | 2146 { |
51 | 2147 error("heredoc rest of line should be blank"); |
2148 blankrol = 0; | |
2149 continue; | |
2150 } | |
2151 if (nest == 1) | |
2152 { | |
2153 if (c == delimleft) | |
2154 nestcount++; | |
2155 else if (c == delimright) | |
2156 { nestcount--; | |
2157 if (nestcount == 0) | |
2158 goto Ldone; | |
2159 } | |
2160 } | |
2161 else if (c == delimright) | |
2162 goto Ldone; | |
2163 if (startline && isalpha(c) && hereid) | |
178 | 2164 { |
51 | 2165 Token t2; |
2166 ubyte* psave = p; | |
2167 p--; | |
2168 scan(&t2); // read in possible heredoc identifier | |
2169 //printf("endid = '%s'\n", t2.ident.toChars()); | |
2170 if (t2.value == TOKidentifier && t2.ident.equals(hereid)) | |
178 | 2171 { |
51 | 2172 /* should check that rest of line is blank |
2173 */ | |
2174 goto Ldone; | |
2175 } | |
2176 p = psave; | |
2177 } | |
2178 stringbuffer.writeUTF8(c); | |
2179 startline = 0; | |
2180 } | |
2181 } | |
2182 | |
2183 Ldone: | |
2184 if (*p == '"') | |
2185 p++; | |
2186 else | |
2187 error("delimited string must end in %c\"", delimright); | |
2188 t.len = stringbuffer.offset; | |
2189 stringbuffer.writeByte(0); | |
175 | 2190 void* mem = GC.malloc(stringbuffer.offset); |
51 | 2191 memcpy(mem, stringbuffer.data, stringbuffer.offset); |
2192 t.ustring = cast(const(char)*)mem; | |
2193 stringPostfix(t); | |
2194 return TOKstring; | |
2195 | |
2196 Lerror: | |
2197 error("unterminated string constant starting at %s", start.toChars()); | |
2198 t.ustring = "".ptr; | |
2199 t.len = 0; | |
2200 t.postfix = 0; | |
2201 return TOKstring; | |
0 | 2202 } |
2203 | |
8
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2204 /************************************** |
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2205 * Lex delimited strings: |
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2206 * q{ foo(xxx) } // " foo(xxx) " |
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2207 * q{foo(} // "foo(" |
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2208 * q{{foo}"}"} // "{foo}"}"" |
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2209 * Input: |
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2210 * p is on the q |
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2211 */ |
0 | 2212 TOK tokenStringConstant(Token* t) |
2213 { | |
8
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2214 uint nest = 1; |
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2215 Loc start = loc; |
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2216 ubyte* pstart = ++p; |
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|
2217 |
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2218 while (true) |
178 | 2219 { |
8
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2220 Token tok; |
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2221 |
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2222 scan(&tok); |
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2223 switch (tok.value) |
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|
2224 { |
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|
2225 case TOKlcurly: |
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|
2226 nest++; |
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|
2227 continue; |
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|
2228 |
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2229 case TOKrcurly: |
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|
2230 if (--nest == 0) |
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|
2231 goto Ldone; |
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|
2232 continue; |
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|
2233 |
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|
2234 case TOKeof: |
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|
2235 goto Lerror; |
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|
2236 |
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|
2237 default: |
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|
2238 continue; |
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|
2239 } |
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|
2240 } |
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|
2241 |
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|
2242 Ldone: |
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|
2243 t.len = p - 1 - pstart; |
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2244 char* tmp = cast(char*)GC.malloc(t.len + 1); |
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2245 memcpy(tmp, pstart, t.len); |
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|
2246 tmp[t.len] = 0; |
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diff
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|
2247 t.ustring = tmp; |
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|
2248 stringPostfix(t); |
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|
2249 return TOKstring; |
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|
2250 |
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|
2251 Lerror: |
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|
2252 error("unterminated token string constant starting at %s", start.toChars()); |
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|
2253 t.ustring = "".ptr; |
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|
2254 t.len = 0; |
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|
2255 t.postfix = 0; |
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|
2256 return TOKstring; |
0 | 2257 } |
2258 } | |
2259 TOK escapeStringConstant(Token* t, int wide) | |
2260 { | |
2261 uint c; | |
2262 Loc start = loc; | |
2263 | |
2264 p++; | |
2265 stringbuffer.reset(); | |
2266 while (true) | |
2267 { | |
2268 c = *p++; | |
2269 switch (c) | |
2270 { | |
2271 version (TEXTUAL_ASSEMBLY_OUT) { | |
2272 } else { | |
2273 case '\\': | |
2274 switch (*p) | |
2275 { | |
2276 case 'u': | |
2277 case 'U': | |
2278 case '&': | |
2279 c = escapeSequence(); | |
2280 stringbuffer.writeUTF8(c); | |
2281 continue; | |
2282 | |
2283 default: | |
2284 c = escapeSequence(); | |
2285 break; | |
2286 } | |
2287 break; | |
2288 } | |
2289 case '\n': | |
2290 loc.linnum++; | |
2291 break; | |
2292 | |
2293 case '\r': | |
2294 if (*p == '\n') | |
2295 continue; // ignore | |
2296 c = '\n'; // treat EndOfLine as \n character | |
2297 loc.linnum++; | |
2298 break; | |
2299 | |
2300 case '"': | |
2301 t.len = stringbuffer.offset; | |
2302 stringbuffer.writeByte(0); | |
2 | 2303 char* tmp = cast(char*)GC.malloc(stringbuffer.offset); |
0 | 2304 memcpy(tmp, stringbuffer.data, stringbuffer.offset); |
2305 t.ustring = tmp; | |
2306 stringPostfix(t); | |
2307 return TOK.TOKstring; | |
2308 | |
2309 case 0: | |
2310 case 0x1A: | |
2311 p--; | |
2312 error("unterminated string constant starting at %s", start.toChars()); | |
2313 t.ustring = "".ptr; | |
2314 t.len = 0; | |
2315 t.postfix = 0; | |
2316 return TOK.TOKstring; | |
2317 | |
2318 default: | |
2319 if (c & 0x80) | |
2320 { | |
2321 p--; | |
2322 c = decodeUTF(); | |
2323 if (c == LS || c == PS) | |
2324 { c = '\n'; | |
2325 loc.linnum++; | |
2326 } | |
2327 p++; | |
2328 stringbuffer.writeUTF8(c); | |
2329 continue; | |
2330 } | |
2331 break; | |
2332 } | |
2333 stringbuffer.writeByte(c); | |
2334 } | |
178 | 2335 |
0 | 2336 assert(false); |
2337 } | |
2338 | |
2339 TOK charConstant(Token* t, int wide) | |
2340 { | |
2341 uint c; | |
2342 TOK tk = TOKcharv; | |
2343 | |
2344 //printf("Lexer.charConstant\n"); | |
2345 p++; | |
2346 c = *p++; | |
2347 switch (c) | |
2348 { | |
2349 version (TEXTUAL_ASSEMBLY_OUT) { | |
2350 } else { | |
2351 case '\\': | |
2352 switch (*p) | |
2353 { | |
2354 case 'u': | |
2355 t.uns64value = escapeSequence(); | |
2356 tk = TOKwcharv; | |
2357 break; | |
2358 | |
2359 case 'U': | |
2360 case '&': | |
2361 t.uns64value = escapeSequence(); | |
2362 tk = TOKdcharv; | |
2363 break; | |
2364 | |
2365 default: | |
2366 t.uns64value = escapeSequence(); | |
2367 break; | |
2368 } | |
2369 break; | |
2370 } | |
2371 case '\n': | |
2372 L1: | |
2373 loc.linnum++; | |
2374 case '\r': | |
2375 case 0: | |
2376 case 0x1A: | |
2377 case '\'': | |
2378 error("unterminated character constant"); | |
2379 return tk; | |
2380 | |
2381 default: | |
2382 if (c & 0x80) | |
2383 { | |
2384 p--; | |
2385 c = decodeUTF(); | |
2386 p++; | |
2387 if (c == LS || c == PS) | |
2388 goto L1; | |
2389 if (c < 0xD800 || (c >= 0xE000 && c < 0xFFFE)) | |
2390 tk = TOKwcharv; | |
2391 else | |
2392 tk = TOKdcharv; | |
2393 } | |
2394 t.uns64value = c; | |
2395 break; | |
2396 } | |
2397 | |
2398 if (*p != '\'') | |
178 | 2399 { |
0 | 2400 error("unterminated character constant"); |
2401 return tk; | |
2402 } | |
2403 p++; | |
2404 return tk; | |
2405 } | |
2406 | |
2407 /*************************************** | |
2408 * Get postfix of string literal. | |
2409 */ | |
2410 void stringPostfix(Token* t) | |
2411 { | |
2412 switch (*p) | |
2413 { | |
2414 case 'c': | |
2415 case 'w': | |
2416 case 'd': | |
2417 t.postfix = *p; | |
2418 p++; | |
2419 break; | |
2420 | |
2421 default: | |
2422 t.postfix = 0; | |
2423 break; | |
2424 } | |
2425 } | |
2426 | |
2427 uint wchar_(uint u) | |
2428 { | |
2429 assert(false); | |
2430 } | |
178 | 2431 |
0 | 2432 /************************************** |
2433 * Read in a number. | |
2434 * If it's an integer, store it in tok.TKutok.Vlong. | |
2435 * integers can be decimal, octal or hex | |
2436 * Handle the suffixes U, UL, LU, L, etc. | |
2437 * If it's double, store it in tok.TKutok.Vdouble. | |
2438 * Returns: | |
2439 * TKnum | |
2440 * TKdouble,... | |
2441 */ | |
2442 | |
2443 TOK number(Token* t) | |
2444 { | |
2445 // We use a state machine to collect numbers | |
2446 enum STATE { STATE_initial, STATE_0, STATE_decimal, STATE_octal, STATE_octale, | |
2447 STATE_hex, STATE_binary, STATE_hex0, STATE_binary0, | |
2448 STATE_hexh, STATE_error }; | |
2449 STATE state; | |
2450 | |
2451 enum FLAGS | |
2452 { | |
2453 FLAGS_undefined = 0, | |
2454 FLAGS_decimal = 1, // decimal | |
2455 FLAGS_unsigned = 2, // u or U suffix | |
2456 FLAGS_long = 4, // l or L suffix | |
2457 }; | |
178 | 2458 |
0 | 2459 FLAGS flags = FLAGS.FLAGS_decimal; |
2460 | |
2461 int i; | |
2462 int base; | |
2463 uint c; | |
2464 ubyte *start; | |
2465 TOK result; | |
2466 | |
2467 //printf("Lexer.number()\n"); | |
2468 state = STATE.STATE_initial; | |
2469 base = 0; | |
2470 stringbuffer.reset(); | |
2471 start = p; | |
2472 while (1) | |
2473 { | |
2474 c = *p; | |
2475 switch (state) | |
2476 { | |
2477 case STATE.STATE_initial: // opening state | |
2478 if (c == '0') | |
2479 state = STATE.STATE_0; | |
2480 else | |
2481 state = STATE.STATE_decimal; | |
2482 break; | |
2483 | |
2484 case STATE.STATE_0: | |
2485 flags = (flags & ~FLAGS.FLAGS_decimal); | |
2486 switch (c) | |
2487 { | |
2488 version (ZEROH) { | |
2489 case 'H': // 0h | |
2490 case 'h': | |
2491 goto hexh; | |
2492 } | |
2493 case 'X': | |
2494 case 'x': | |
2495 state = STATE.STATE_hex0; | |
2496 break; | |
2497 | |
2498 case '.': | |
2499 if (p[1] == '.') // .. is a separate token | |
2500 goto done; | |
2501 case 'i': | |
2502 case 'f': | |
2503 case 'F': | |
2504 goto real_; | |
2505 version (ZEROH) { | |
2506 case 'E': | |
2507 case 'e': | |
2508 goto case_hex; | |
2509 } | |
2510 case 'B': | |
2511 case 'b': | |
2512 state = STATE.STATE_binary0; | |
2513 break; | |
2514 | |
2515 case '0': case '1': case '2': case '3': | |
2516 case '4': case '5': case '6': case '7': | |
2517 state = STATE.STATE_octal; | |
2518 break; | |
2519 | |
2520 version (ZEROH) { | |
2521 case '8': case '9': case 'A': | |
2522 case 'C': case 'D': case 'F': | |
2523 case 'a': case 'c': case 'd': case 'f': | |
2524 case_hex: | |
2525 state = STATE.STATE_hexh; | |
2526 break; | |
2527 } | |
2528 case '_': | |
2529 state = STATE.STATE_octal; | |
2530 p++; | |
2531 continue; | |
2532 | |
2533 case 'L': | |
2534 if (p[1] == 'i') | |
2535 goto real_; | |
2536 goto done; | |
2537 | |
2538 default: | |
2539 goto done; | |
2540 } | |
2541 break; | |
2542 | |
2543 case STATE.STATE_decimal: // reading decimal number | |
2544 if (!isdigit(c)) | |
2545 { | |
2546 version (ZEROH) { | |
2547 if (ishex(c) | |
2548 || c == 'H' || c == 'h' | |
2549 ) | |
2550 goto hexh; | |
2551 } | |
2552 if (c == '_') // ignore embedded _ | |
2553 { p++; | |
2554 continue; | |
2555 } | |
2556 if (c == '.' && p[1] != '.') | |
2557 goto real_; | |
2558 else if (c == 'i' || c == 'f' || c == 'F' || | |
2559 c == 'e' || c == 'E') | |
2560 { | |
2561 real_: // It's a real number. Back up and rescan as a real | |
2562 p = start; | |
2563 return inreal(t); | |
2564 } | |
2565 else if (c == 'L' && p[1] == 'i') | |
2566 goto real_; | |
2567 goto done; | |
2568 } | |
2569 break; | |
2570 | |
2571 case STATE.STATE_hex0: // reading hex number | |
2572 case STATE.STATE_hex: | |
2573 if (! ishex(cast(ubyte)c)) | |
2574 { | |
2575 if (c == '_') // ignore embedded _ | |
2576 { p++; | |
2577 continue; | |
2578 } | |
2579 if (c == '.' && p[1] != '.') | |
2580 goto real_; | |
2581 if (c == 'P' || c == 'p' || c == 'i') | |
2582 goto real_; | |
2583 if (state == STATE.STATE_hex0) | |
2584 error("Hex digit expected, not '%c'", c); | |
2585 goto done; | |
2586 } | |
2587 state = STATE.STATE_hex; | |
2588 break; | |
2589 | |
2590 version (ZEROH) { | |
2591 hexh: | |
2592 state = STATE.STATE_hexh; | |
2593 case STATE.STATE_hexh: // parse numbers like 0FFh | |
2594 if (!ishex(c)) | |
2595 { | |
2596 if (c == 'H' || c == 'h') | |
2597 { | |
2598 p++; | |
2599 base = 16; | |
2600 goto done; | |
2601 } | |
2602 else | |
2603 { | |
2604 // Check for something like 1E3 or 0E24 | |
2605 if (memchr(cast(char*)stringbuffer.data, 'E', stringbuffer.offset) || | |
2606 memchr(cast(char*)stringbuffer.data, 'e', stringbuffer.offset)) | |
2607 goto real_; | |
2608 error("Hex digit expected, not '%c'", c); | |
2609 goto done; | |
2610 } | |
2611 } | |
2612 break; | |
2613 } | |
2614 | |
2615 case STATE.STATE_octal: // reading octal number | |
2616 case STATE.STATE_octale: // reading octal number with non-octal digits | |
2617 if (!isoctal(cast(ubyte)c)) | |
2618 { | |
2619 version (ZEROH) { | |
2620 if (ishex(c) | |
2621 || c == 'H' || c == 'h' | |
2622 ) | |
2623 goto hexh; | |
2624 } | |
2625 if (c == '_') // ignore embedded _ | |
2626 { p++; | |
2627 continue; | |
2628 } | |
2629 if (c == '.' && p[1] != '.') | |
2630 goto real_; | |
2631 if (c == 'i') | |
2632 goto real_; | |
2633 if (isdigit(c)) | |
2634 { | |
2635 state = STATE.STATE_octale; | |
2636 } | |
2637 else | |
2638 goto done; | |
2639 } | |
2640 break; | |
2641 | |
2642 case STATE.STATE_binary0: // starting binary number | |
2643 case STATE.STATE_binary: // reading binary number | |
2644 if (c != '0' && c != '1') | |
2645 { | |
2646 version (ZEROH) { | |
2647 if (ishex(c) | |
2648 || c == 'H' || c == 'h' | |
2649 ) | |
2650 goto hexh; | |
2651 } | |
2652 if (c == '_') // ignore embedded _ | |
2653 { p++; | |
2654 continue; | |
2655 } | |
2656 if (state == STATE.STATE_binary0) | |
2657 { error("binary digit expected"); | |
2658 state = STATE.STATE_error; | |
2659 break; | |
2660 } | |
2661 else | |
2662 goto done; | |
2663 } | |
2664 state = STATE.STATE_binary; | |
2665 break; | |
2666 | |
2667 case STATE.STATE_error: // for error recovery | |
2668 if (!isdigit(c)) // scan until non-digit | |
2669 goto done; | |
2670 break; | |
2671 | |
2672 default: | |
2673 assert(0); | |
2674 } | |
2675 stringbuffer.writeByte(c); | |
2676 p++; | |
2677 } | |
2678 done: | |
2679 stringbuffer.writeByte(0); // terminate string | |
2680 if (state == STATE.STATE_octale) | |
2681 error("Octal digit expected"); | |
2682 | |
2683 ulong n; // unsigned >=64 bit integer type | |
2684 | |
2685 if (stringbuffer.offset == 2 && (state == STATE.STATE_decimal || state == STATE.STATE_0)) | |
2686 n = stringbuffer.data[0] - '0'; | |
2687 else | |
2688 { | |
2689 // Convert string to integer | |
2690 version (__DMC__) { | |
2691 errno = 0; | |
2692 n = strtoull(cast(char*)stringbuffer.data,null,base); | |
2693 if (errno == ERANGE) | |
2694 error("integer overflow"); | |
2695 } else { | |
2696 // Not everybody implements strtoull() | |
2697 char* p = cast(char*)stringbuffer.data; | |
2698 int r = 10, d; | |
2699 | |
2700 if (*p == '0') | |
2701 { | |
2702 if (p[1] == 'x' || p[1] == 'X') | |
2703 p += 2, r = 16; | |
2704 else if (p[1] == 'b' || p[1] == 'B') | |
2705 p += 2, r = 2; | |
2706 else if (isdigit(p[1])) | |
2707 p += 1, r = 8; | |
2708 } | |
2709 | |
2710 n = 0; | |
2711 while (1) | |
2712 { | |
2713 if (*p >= '0' && *p <= '9') | |
2714 d = *p - '0'; | |
2715 else if (*p >= 'a' && *p <= 'z') | |
2716 d = *p - 'a' + 10; | |
2717 else if (*p >= 'A' && *p <= 'Z') | |
2718 d = *p - 'A' + 10; | |
2719 else | |
2720 break; | |
2721 if (d >= r) | |
2722 break; | |
2723 ulong n2 = n * r; | |
2724 //printf("n2 / r = %llx, n = %llx\n", n2/r, n); | |
2725 if (n2 / r != n || n2 + d < n) | |
2726 { | |
2727 error ("integer overflow"); | |
2728 break; | |
2729 } | |
2730 | |
2731 n = n2 + d; | |
2732 p++; | |
2733 } | |
2734 } | |
2735 if (n.sizeof > 8 && | |
2736 n > 0xFFFFFFFFFFFFFFFF) // if n needs more than 64 bits | |
2737 error("integer overflow"); | |
2738 } | |
2739 | |
2740 // Parse trailing 'u', 'U', 'l' or 'L' in any combination | |
2741 while (1) | |
2742 { FLAGS f; | |
2743 | |
2744 switch (*p) | |
2745 { case 'U': | |
2746 case 'u': | |
2747 f = FLAGS.FLAGS_unsigned; | |
2748 goto L1; | |
2749 | |
2750 case 'l': | |
2751 if (1 || !global.params.useDeprecated) | |
2752 error("'l' suffix is deprecated, use 'L' instead"); | |
2753 case 'L': | |
2754 f = FLAGS.FLAGS_long; | |
2755 L1: | |
2756 p++; | |
2757 if (flags & f) | |
2758 error("unrecognized token"); | |
2759 flags = (flags | f); | |
2760 continue; | |
2761 default: | |
2762 break; | |
2763 } | |
2764 break; | |
2765 } | |
2766 | |
2767 switch (flags) | |
2768 { | |
2769 case FLAGS.FLAGS_undefined: | |
2770 /* Octal or Hexadecimal constant. | |
2771 * First that fits: int, uint, long, ulong | |
2772 */ | |
2773 if (n & 0x8000000000000000) | |
2774 result = TOK.TOKuns64v; | |
2775 else if (n & 0xFFFFFFFF00000000) | |
2776 result = TOK.TOKint64v; | |
2777 else if (n & 0x80000000) | |
2778 result = TOK.TOKuns32v; | |
2779 else | |
2780 result = TOK.TOKint32v; | |
2781 break; | |
2782 | |
2783 case FLAGS.FLAGS_decimal: | |
2784 /* First that fits: int, long, long long | |
2785 */ | |
2786 if (n & 0x8000000000000000) | |
2787 { error("signed integer overflow"); | |
2788 result = TOK.TOKuns64v; | |
2789 } | |
2790 else if (n & 0xFFFFFFFF80000000) | |
2791 result = TOK.TOKint64v; | |
2792 else | |
2793 result = TOK.TOKint32v; | |
2794 break; | |
2795 | |
2796 case FLAGS.FLAGS_unsigned: | |
2797 case FLAGS.FLAGS_decimal | FLAGS.FLAGS_unsigned: | |
2798 /* First that fits: uint, ulong | |
2799 */ | |
2800 if (n & 0xFFFFFFFF00000000) | |
2801 result = TOK.TOKuns64v; | |
2802 else | |
2803 result = TOK.TOKuns32v; | |
2804 break; | |
2805 | |
2806 case FLAGS.FLAGS_decimal | FLAGS.FLAGS_long: | |
2807 if (n & 0x8000000000000000) | |
2808 { error("signed integer overflow"); | |
2809 result = TOK.TOKuns64v; | |
2810 } | |
2811 else | |
2812 result = TOK.TOKint64v; | |
2813 break; | |
2814 | |
2815 case FLAGS.FLAGS_long: | |
2816 if (n & 0x8000000000000000) | |
2817 result = TOK.TOKuns64v; | |
2818 else | |
2819 result = TOK.TOKint64v; | |
2820 break; | |
2821 | |
2822 case FLAGS.FLAGS_unsigned | FLAGS.FLAGS_long: | |
2823 case FLAGS.FLAGS_decimal | FLAGS.FLAGS_unsigned | FLAGS.FLAGS_long: | |
2824 result = TOK.TOKuns64v; | |
2825 break; | |
2826 | |
2827 default: | |
2828 debug { | |
2829 printf("%x\n",flags); | |
2830 } | |
2831 assert(0); | |
2832 } | |
2833 t.uns64value = n; | |
2834 return result; | |
2835 } | |
2836 | |
2837 /************************************** | |
2838 * Read in characters, converting them to real. | |
2839 * Bugs: | |
2840 * Exponent overflow not detected. | |
2841 * Too much requested precision is not detected. | |
2842 */ | |
2843 TOK inreal(Token* t) | |
2844 in | |
2845 { | |
2846 assert(*p == '.' || isdigit(*p)); | |
2847 } | |
2848 out (result) | |
2849 { | |
2850 switch (result) | |
2851 { | |
2852 case TOKfloat32v: | |
2853 case TOKfloat64v: | |
2854 case TOKfloat80v: | |
2855 case TOKimaginary32v: | |
2856 case TOKimaginary64v: | |
2857 case TOKimaginary80v: | |
2858 break; | |
2859 | |
2860 default: | |
2861 assert(0); | |
2862 } | |
2863 } | |
2864 body | |
2865 { | |
2866 int dblstate; | |
2867 uint c; | |
2868 char hex; // is this a hexadecimal-floating-constant? | |
2869 TOK result; | |
2870 | |
2871 //printf("Lexer.inreal()\n"); | |
2872 stringbuffer.reset(); | |
2873 dblstate = 0; | |
2874 hex = 0; | |
2875 Lnext: | |
2876 while (true) | |
2877 { | |
2878 // Get next char from input | |
2879 c = *p++; | |
2880 //printf("dblstate = %d, c = '%c'\n", dblstate, c); | |
2881 while (true) | |
2882 { | |
2883 switch (dblstate) | |
2884 { | |
2885 case 0: // opening state | |
2886 if (c == '0') | |
2887 dblstate = 9; | |
2888 else if (c == '.') | |
2889 dblstate = 3; | |
2890 else | |
2891 dblstate = 1; | |
2892 break; | |
2893 | |
2894 case 9: | |
2895 dblstate = 1; | |
2896 if (c == 'X' || c == 'x') | |
178 | 2897 { |
0 | 2898 hex++; |
2899 break; | |
2900 } | |
2901 case 1: // digits to left of . | |
2902 case 3: // digits to right of . | |
2903 case 7: // continuing exponent digits | |
2904 if (!isdigit(c) && !(hex && isxdigit(c))) | |
2905 { | |
2906 if (c == '_') | |
2907 goto Lnext; // ignore embedded '_' | |
2908 dblstate++; | |
2909 continue; | |
2910 } | |
2911 break; | |
2912 | |
2913 case 2: // no more digits to left of . | |
2914 if (c == '.') | |
178 | 2915 { |
0 | 2916 dblstate++; |
2917 break; | |
2918 } | |
2919 case 4: // no more digits to right of . | |
2920 if ((c == 'E' || c == 'e') || | |
2921 hex && (c == 'P' || c == 'p')) | |
178 | 2922 { |
0 | 2923 dblstate = 5; |
2924 hex = 0; // exponent is always decimal | |
2925 break; | |
2926 } | |
2927 if (hex) | |
2928 error("binary-exponent-part required"); | |
2929 goto done; | |
2930 | |
2931 case 5: // looking immediately to right of E | |
2932 dblstate++; | |
2933 if (c == '-' || c == '+') | |
2934 break; | |
2935 case 6: // 1st exponent digit expected | |
2936 if (!isdigit(c)) | |
2937 error("exponent expected"); | |
2938 dblstate++; | |
2939 break; | |
2940 | |
2941 case 8: // past end of exponent digits | |
2942 goto done; | |
79 | 2943 |
2944 default: | |
2945 assert(0, "inreal.dblstate has unexpected value"); | |
0 | 2946 } |
2947 break; | |
2948 } | |
2949 stringbuffer.writeByte(c); | |
2950 } | |
2951 done: | |
2952 p--; | |
2953 | |
2954 stringbuffer.writeByte(0); | |
2955 | |
114 | 2956 version (Windows) { /// && __DMC__ |
0 | 2957 char* save = __locale_decpoint; |
2958 __locale_decpoint = cast(char*)".".ptr; | |
2959 } | |
2960 t.float80value = strtold(cast(char*)stringbuffer.data, null); | |
2961 | |
2962 errno = 0; | |
2963 switch (*p) | |
2964 { | |
2965 case 'F': | |
2966 case 'f': | |
2967 strtof(cast(char*)stringbuffer.data, null); | |
2968 result = TOKfloat32v; | |
2969 p++; | |
2970 break; | |
2971 | |
2972 default: | |
2973 strtod(cast(char*)stringbuffer.data, null); | |
2974 result = TOKfloat64v; | |
2975 break; | |
2976 | |
2977 case 'l': | |
2978 if (!global.params.useDeprecated) | |
2979 error("'l' suffix is deprecated, use 'L' instead"); | |
2980 case 'L': | |
2981 result = TOKfloat80v; | |
2982 p++; | |
2983 break; | |
2984 } | |
2985 if (*p == 'i' || *p == 'I') | |
2986 { | |
2987 if (!global.params.useDeprecated && *p == 'I') | |
2988 error("'I' suffix is deprecated, use 'i' instead"); | |
2989 p++; | |
2990 switch (result) | |
2991 { | |
2992 case TOKfloat32v: | |
2993 result = TOKimaginary32v; | |
2994 break; | |
2995 case TOKfloat64v: | |
2996 result = TOKimaginary64v; | |
2997 break; | |
2998 case TOKfloat80v: | |
2999 result = TOKimaginary80v; | |
3000 break; | |
157
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3001 default: |
0 | 3002 } |
3003 } | |
178 | 3004 |
114 | 3005 version (Windows) { ///&& __DMC__ |
0 | 3006 __locale_decpoint = save; |
3007 } | |
3008 if (errno == ERANGE) | |
3009 error("number is not representable"); | |
3010 | |
3011 return result; | |
3012 } | |
3013 | |
3014 void error(T...)(string format, T t) | |
3015 { | |
3016 error(this.loc, format, t); | |
3017 } | |
3018 | |
3019 void error(T...)(Loc loc, string format, T t) | |
3020 { | |
3021 if (mod && !global.gag) | |
3022 { | |
3023 string p = loc.toChars(); | |
3024 if (p.length != 0) | |
3025 writef("%s: ", p); | |
3026 | |
3027 writefln(format, t); | |
3028 | |
3029 if (global.errors >= 20) // moderate blizzard of cascading messages | |
3030 fatal(); | |
3031 } | |
3032 | |
3033 global.errors++; | |
3034 } | |
178 | 3035 |
162 | 3036 /********************************************* |
3037 * Do pragma. | |
3038 * Currently, the only pragma supported is: | |
3039 * #line linnum [filespec] | |
3040 */ | |
0 | 3041 void pragma_() |
3042 { | |
162 | 3043 Token tok; |
3044 int linnum; | |
3045 string filespec = null; | |
3046 Loc loc = this.loc; | |
3047 | |
3048 scan(&tok); | |
3049 if (tok.value != TOKidentifier || tok.ident != Id.line) | |
3050 goto Lerr; | |
3051 | |
3052 scan(&tok); | |
3053 if (tok.value == TOKint32v || tok.value == TOKint64v) | |
3054 linnum = cast(int)(tok.uns64value - 1); /// | |
3055 else | |
3056 goto Lerr; | |
3057 | |
3058 while (1) | |
3059 { | |
3060 switch (*p) | |
3061 { | |
3062 case 0: | |
3063 case 0x1A: | |
3064 case '\n': | |
3065 Lnewline: | |
3066 this.loc.linnum = linnum; | |
3067 if (filespec != null) | |
3068 this.loc.filename = filespec; | |
3069 return; | |
3070 | |
3071 case '\r': | |
3072 p++; | |
3073 if (*p != '\n') | |
3074 { p--; | |
3075 goto Lnewline; | |
3076 } | |
3077 continue; | |
3078 | |
3079 case ' ': | |
3080 case '\t': | |
3081 case '\v': | |
3082 case '\f': | |
3083 p++; | |
3084 continue; // skip white space | |
3085 | |
3086 case '_': | |
3087 if (mod && memcmp(p, "__FILE__".ptr, 8) == 0) | |
3088 { | |
3089 p += 8; | |
3090 filespec = (loc.filename ? loc.filename : mod.ident.toChars()); | |
3091 } | |
3092 continue; | |
3093 | |
3094 case '"': | |
3095 if (filespec) | |
3096 goto Lerr; | |
3097 stringbuffer.reset(); | |
3098 p++; | |
3099 while (1) | |
178 | 3100 { |
162 | 3101 uint c; |
3102 | |
3103 c = *p; | |
3104 switch (c) | |
3105 { | |
3106 case '\n': | |
3107 case '\r': | |
3108 case 0: | |
3109 case 0x1A: | |
3110 goto Lerr; | |
3111 | |
3112 case '"': | |
3113 stringbuffer.writeByte(0); | |
3114 filespec = stringbuffer.extractString(); /// | |
3115 p++; | |
3116 break; | |
3117 | |
3118 default: | |
3119 if (c & 0x80) | |
178 | 3120 { |
162 | 3121 uint u = decodeUTF(); |
3122 if (u == PS || u == LS) | |
3123 goto Lerr; | |
3124 } | |
3125 stringbuffer.writeByte(c); | |
3126 p++; | |
3127 continue; | |
3128 } | |
3129 break; | |
3130 } | |
3131 continue; | |
3132 | |
3133 default: | |
3134 if (*p & 0x80) | |
178 | 3135 { |
162 | 3136 uint u = decodeUTF(); |
3137 if (u == PS || u == LS) | |
3138 goto Lnewline; | |
3139 } | |
3140 goto Lerr; | |
3141 } | |
3142 } | |
3143 | |
3144 Lerr: | |
3145 error(loc, "#line integer [\"filespec\"]\\n expected"); | |
0 | 3146 } |
3147 | |
49 | 3148 /******************************************** |
3149 * Decode UTF character. | |
3150 * Issue error messages for invalid sequences. | |
3151 * Return decoded character, advance p to last character in UTF sequence. | |
3152 */ | |
0 | 3153 uint decodeUTF() |
3154 { | |
49 | 3155 dchar u; |
3156 ubyte c; | |
3157 ubyte* s = p; | |
3158 size_t len; | |
3159 size_t idx; | |
3160 string msg; | |
3161 | |
3162 c = *s; | |
3163 assert(c & 0x80); | |
3164 | |
3165 // Check length of remaining string up to 6 UTF-8 characters | |
3166 for (len = 1; len < 6 && s[len]; len++) { | |
3167 ; | |
3168 } | |
3169 | |
3170 idx = 0; | |
3171 msg = utf_decodeChar(cast(string)s[0..len], &idx, &u); | |
3172 p += idx - 1; | |
3173 if (msg) | |
3174 { | |
3175 error("%s", msg); | |
3176 } | |
3177 return u; | |
0 | 3178 } |
3179 | |
157
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3180 /*************************************************** |
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3181 * Parse doc comment embedded between t.ptr and p. |
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3182 * Remove trailing blanks and tabs from lines. |
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3183 * Replace all newlines with \n. |
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|
3184 * Remove leading comment character from each line. |
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3185 * Decide if it's a lineComment or a blockComment. |
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* added all missing default cases in switch statements
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|
3186 * Append to previous one for this token. |
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|
3187 */ |
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3188 void getDocComment(Token* t, uint lineComment) |
0 | 3189 { |
157
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3190 /* ct tells us which kind of comment it is: '!', '/', '*', or '+' |
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|
3191 */ |
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3192 ubyte ct = t.ptr[2]; |
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|
3193 |
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3194 /* Start of comment text skips over / * *, / + +, or / / / |
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3195 */ |
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3196 ubyte* q = t.ptr + 3; // start of comment text |
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3197 |
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3198 ubyte* qend = p; |
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3199 if (ct == '*' || ct == '+') |
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3200 qend -= 2; |
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3201 |
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3202 /* Scan over initial row of ****'s or ++++'s or ////'s |
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3203 */ |
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3204 for (; q < qend; q++) |
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3205 { |
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3206 if (*q != ct) |
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3207 break; |
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|
3208 } |
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3209 |
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3210 /* Remove trailing row of ****'s or ++++'s |
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3211 */ |
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3212 if (ct != '/' && ct != '!') |
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3213 { |
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3214 for (; q < qend; qend--) |
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3215 { |
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3216 if (qend[-1] != ct) |
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3217 break; |
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3218 } |
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3219 } |
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3220 |
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3221 /* Comment is now [q .. qend]. |
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3222 * Canonicalize it into buf[]. |
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3223 */ |
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3224 OutBuffer buf = new OutBuffer; |
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3225 int linestart = 0; |
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3226 |
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3227 for (; q < qend; q++) |
b7b61140701d
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|
3228 { |
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135
diff
changeset
|
3229 ubyte c = *q; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3230 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3231 switch (c) |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3232 { |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3233 case '*': |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3234 case '+': |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3235 if (linestart && c == ct) |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3236 { linestart = 0; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3237 /* Trim preceding whitespace up to preceding \n |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3238 */ |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3239 while (buf.offset && (buf.data[buf.offset - 1] == ' ' || buf.data[buf.offset - 1] == '\t')) |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3240 buf.offset--; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3241 continue; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3242 } |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3243 break; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3244 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3245 case ' ': |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3246 case '\t': |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3247 break; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3248 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3249 case '\r': |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3250 if (q[1] == '\n') |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3251 continue; // skip the \r |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3252 goto Lnewline; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3253 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3254 default: |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3255 if (c == 226) |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3256 { |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3257 // If LS or PS |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3258 if (q[1] == 128 && |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3259 (q[2] == 168 || q[2] == 169)) |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3260 { |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3261 q += 2; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3262 goto Lnewline; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3263 } |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3264 } |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3265 linestart = 0; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3266 break; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3267 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3268 Lnewline: |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3269 c = '\n'; // replace all newlines with \n |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3270 case '\n': |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3271 linestart = 1; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3272 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3273 /* Trim trailing whitespace |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3274 */ |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3275 while (buf.offset && (buf.data[buf.offset - 1] == ' ' || buf.data[buf.offset - 1] == '\t')) |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3276 buf.offset--; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3277 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3278 break; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3279 } |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3280 buf.writeByte(c); |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3281 } |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3282 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3283 // Always end with a newline |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3284 if (!buf.offset || buf.data[buf.offset - 1] != '\n') |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3285 buf.writeByte('\n'); |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3286 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3287 buf.writeByte(0); |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3288 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3289 // It's a line comment if the start of the doc comment comes |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3290 // after other non-whitespace on the same line. |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3291 string* dc = (lineComment && anyToken) |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3292 ? &t.lineComment |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3293 : &t.blockComment; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3294 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3295 // Combine with previous doc comment, if any |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3296 if (*dc) |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3297 *dc = combineComments(*dc, cast(string) buf.data[0 .. buf.size]); // TODO: utf decode etc? |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3298 else |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3299 { |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3300 auto bufsize = buf.size; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3301 *dc = cast(string) buf.extractData()[0..bufsize]; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3302 } |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3303 } |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3304 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3305 /******************************************** |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3306 * Combine two document comments into one, |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3307 * separated by a newline. |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3308 */ |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3309 static string combineComments(string c1, string c2) |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3310 { |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3311 //printf("Lexer::combineComments('%s', '%s')\n", c1, c2); |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3312 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3313 string c = c2; |
178 | 3314 |
157
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3315 if (c1) |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3316 { |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3317 c = c1; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3318 if (c2) |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3319 { |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3320 size_t len1 = c1.length; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3321 size_t len2 = c2.length; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3322 |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3323 c = c1.idup; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3324 if (len1 && c1[$-1] != '\n') |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3325 c ~= '\n'; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3326 c ~= c2; |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3327 } |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3328 } |
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3329 return c; |
0 | 3330 } |
3331 | |
3332 static bool isValidIdentifier(string p) | |
3333 { | |
3334 if (p.length == 0) { | |
3335 return false; | |
3336 } | |
3337 | |
3338 if (p[0] >= '0' && p[0] <= '9') { // beware of isdigit() on signed chars | |
3339 return false; | |
3340 } | |
3341 | |
3342 size_t idx = 0; | |
3343 while (idx < p.length) | |
3344 { | |
3345 dchar dc; | |
3346 | |
3347 if (utf_decodeChar(p, &idx, &dc) !is null) { | |
3348 return false; | |
3349 } | |
3350 | |
3351 if (!((dc >= 0x80 && isUniAlpha(dc)) || isalnum(dc) || dc == '_')) { | |
3352 return false; | |
3353 } | |
3354 } | |
3355 | |
3356 return true; | |
3357 } | |
3358 | |
79 | 3359 /// TODO: use normal string append when GC works |
3360 static string combineComments(const(char)[] c1, const(char)[] c2) | |
0 | 3361 { |
79 | 3362 //writef("Lexer.combineComments('%s', '%s')\n", c1, c2); |
0 | 3363 |
79 | 3364 char[] c = cast(char[]) c2; |
178 | 3365 |
79 | 3366 if (c1 !is null) |
0 | 3367 { |
79 | 3368 c = cast(char[]) c1; |
3369 if (c2 !is null) | |
0 | 3370 { |
79 | 3371 c = cast(char[]) (GC.malloc(c1.length + 1 + c2.length)[0 .. c1.length + 1 + c2.length]); |
3372 size_t len1 = c1.length; | |
3373 c[0..len1] = c1[]; | |
3374 c[len1++] = '\n'; | |
3375 c[len1 .. len1 + c2.length] = c2[]; | |
0 | 3376 } |
3377 } | |
178 | 3378 |
79 | 3379 return cast(string)c; |
0 | 3380 } |
178 | 3381 } |