Mercurial > projects > ddmd
annotate dmd/Lexer.d @ 168:ceed63f310fb
stringtable, stringbuffer and freelist moved to Global
| author | korDen |
|---|---|
| date | Thu, 30 Sep 2010 12:57:13 +0400 |
| parents | fe932c1a9563 |
| children | e7769d53e750 |
| 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.stdio; | |
| 27 import core.stdc.time; | |
| 28 import core.stdc.errno; | |
| 29 | |
| 30 enum LS = 0x2028; // UTF line separator | |
| 31 enum PS = 0x2029; // UTF paragraph separator | |
| 32 | |
| 33 extern (C) extern | |
| 34 { | |
| 35 __gshared char* __locale_decpoint; | |
| 36 } | |
| 37 | |
| 162 | 38 bool isUniAlpha(uint u) |
| 0 | 39 { |
|
168
ceed63f310fb
stringtable, stringbuffer and freelist moved to Global
korDen
parents:
163
diff
changeset
|
40 enum ushort table[][2] = |
| 162 | 41 [ |
| 42 [ 0x00AA, 0x00AA ], | |
| 43 [ 0x00B5, 0x00B5 ], | |
| 44 [ 0x00B7, 0x00B7 ], | |
| 45 [ 0x00BA, 0x00BA ], | |
| 46 [ 0x00C0, 0x00D6 ], | |
| 47 [ 0x00D8, 0x00F6 ], | |
| 48 [ 0x00F8, 0x01F5 ], | |
| 49 [ 0x01FA, 0x0217 ], | |
| 50 [ 0x0250, 0x02A8 ], | |
| 51 [ 0x02B0, 0x02B8 ], | |
| 52 [ 0x02BB, 0x02BB ], | |
| 53 [ 0x02BD, 0x02C1 ], | |
| 54 [ 0x02D0, 0x02D1 ], | |
| 55 [ 0x02E0, 0x02E4 ], | |
| 56 [ 0x037A, 0x037A ], | |
| 57 [ 0x0386, 0x0386 ], | |
| 58 [ 0x0388, 0x038A ], | |
| 59 [ 0x038C, 0x038C ], | |
| 60 [ 0x038E, 0x03A1 ], | |
| 61 [ 0x03A3, 0x03CE ], | |
| 62 [ 0x03D0, 0x03D6 ], | |
| 63 [ 0x03DA, 0x03DA ], | |
| 64 [ 0x03DC, 0x03DC ], | |
| 65 [ 0x03DE, 0x03DE ], | |
| 66 [ 0x03E0, 0x03E0 ], | |
| 67 [ 0x03E2, 0x03F3 ], | |
| 68 [ 0x0401, 0x040C ], | |
| 69 [ 0x040E, 0x044F ], | |
| 70 [ 0x0451, 0x045C ], | |
| 71 [ 0x045E, 0x0481 ], | |
| 72 [ 0x0490, 0x04C4 ], | |
| 73 [ 0x04C7, 0x04C8 ], | |
| 74 [ 0x04CB, 0x04CC ], | |
| 75 [ 0x04D0, 0x04EB ], | |
| 76 [ 0x04EE, 0x04F5 ], | |
| 77 [ 0x04F8, 0x04F9 ], | |
| 78 [ 0x0531, 0x0556 ], | |
| 79 [ 0x0559, 0x0559 ], | |
| 80 [ 0x0561, 0x0587 ], | |
| 81 [ 0x05B0, 0x05B9 ], | |
| 82 [ 0x05BB, 0x05BD ], | |
| 83 [ 0x05BF, 0x05BF ], | |
| 84 [ 0x05C1, 0x05C2 ], | |
| 85 [ 0x05D0, 0x05EA ], | |
| 86 [ 0x05F0, 0x05F2 ], | |
| 87 [ 0x0621, 0x063A ], | |
| 88 [ 0x0640, 0x0652 ], | |
| 89 [ 0x0660, 0x0669 ], | |
| 90 [ 0x0670, 0x06B7 ], | |
| 91 [ 0x06BA, 0x06BE ], | |
| 92 [ 0x06C0, 0x06CE ], | |
| 93 [ 0x06D0, 0x06DC ], | |
| 94 [ 0x06E5, 0x06E8 ], | |
| 95 [ 0x06EA, 0x06ED ], | |
| 96 [ 0x06F0, 0x06F9 ], | |
| 97 [ 0x0901, 0x0903 ], | |
| 98 [ 0x0905, 0x0939 ], | |
| 99 [ 0x093D, 0x093D ], | |
| 100 [ 0x093E, 0x094D ], | |
| 101 [ 0x0950, 0x0952 ], | |
| 102 [ 0x0958, 0x0963 ], | |
| 103 [ 0x0966, 0x096F ], | |
| 104 [ 0x0981, 0x0983 ], | |
| 105 [ 0x0985, 0x098C ], | |
| 106 [ 0x098F, 0x0990 ], | |
| 107 [ 0x0993, 0x09A8 ], | |
| 108 [ 0x09AA, 0x09B0 ], | |
| 109 [ 0x09B2, 0x09B2 ], | |
| 110 [ 0x09B6, 0x09B9 ], | |
| 111 [ 0x09BE, 0x09C4 ], | |
| 112 [ 0x09C7, 0x09C8 ], | |
| 113 [ 0x09CB, 0x09CD ], | |
| 114 [ 0x09DC, 0x09DD ], | |
| 115 [ 0x09DF, 0x09E3 ], | |
| 116 [ 0x09E6, 0x09EF ], | |
| 117 [ 0x09F0, 0x09F1 ], | |
| 118 [ 0x0A02, 0x0A02 ], | |
| 119 [ 0x0A05, 0x0A0A ], | |
| 120 [ 0x0A0F, 0x0A10 ], | |
| 121 [ 0x0A13, 0x0A28 ], | |
| 122 [ 0x0A2A, 0x0A30 ], | |
| 123 [ 0x0A32, 0x0A33 ], | |
| 124 [ 0x0A35, 0x0A36 ], | |
| 125 [ 0x0A38, 0x0A39 ], | |
| 126 [ 0x0A3E, 0x0A42 ], | |
| 127 [ 0x0A47, 0x0A48 ], | |
| 128 [ 0x0A4B, 0x0A4D ], | |
| 129 [ 0x0A59, 0x0A5C ], | |
| 130 [ 0x0A5E, 0x0A5E ], | |
| 131 [ 0x0A66, 0x0A6F ], | |
| 132 [ 0x0A74, 0x0A74 ], | |
| 133 [ 0x0A81, 0x0A83 ], | |
| 134 [ 0x0A85, 0x0A8B ], | |
| 135 [ 0x0A8D, 0x0A8D ], | |
| 136 [ 0x0A8F, 0x0A91 ], | |
| 137 [ 0x0A93, 0x0AA8 ], | |
| 138 [ 0x0AAA, 0x0AB0 ], | |
| 139 [ 0x0AB2, 0x0AB3 ], | |
| 140 [ 0x0AB5, 0x0AB9 ], | |
| 141 [ 0x0ABD, 0x0AC5 ], | |
| 142 [ 0x0AC7, 0x0AC9 ], | |
| 143 [ 0x0ACB, 0x0ACD ], | |
| 144 [ 0x0AD0, 0x0AD0 ], | |
| 145 [ 0x0AE0, 0x0AE0 ], | |
| 146 [ 0x0AE6, 0x0AEF ], | |
| 147 [ 0x0B01, 0x0B03 ], | |
| 148 [ 0x0B05, 0x0B0C ], | |
| 149 [ 0x0B0F, 0x0B10 ], | |
| 150 [ 0x0B13, 0x0B28 ], | |
| 151 [ 0x0B2A, 0x0B30 ], | |
| 152 [ 0x0B32, 0x0B33 ], | |
| 153 [ 0x0B36, 0x0B39 ], | |
| 154 [ 0x0B3D, 0x0B3D ], | |
| 155 [ 0x0B3E, 0x0B43 ], | |
| 156 [ 0x0B47, 0x0B48 ], | |
| 157 [ 0x0B4B, 0x0B4D ], | |
| 158 [ 0x0B5C, 0x0B5D ], | |
| 159 [ 0x0B5F, 0x0B61 ], | |
| 160 [ 0x0B66, 0x0B6F ], | |
| 161 [ 0x0B82, 0x0B83 ], | |
| 162 [ 0x0B85, 0x0B8A ], | |
| 163 [ 0x0B8E, 0x0B90 ], | |
| 164 [ 0x0B92, 0x0B95 ], | |
| 165 [ 0x0B99, 0x0B9A ], | |
| 166 [ 0x0B9C, 0x0B9C ], | |
| 167 [ 0x0B9E, 0x0B9F ], | |
| 168 [ 0x0BA3, 0x0BA4 ], | |
| 169 [ 0x0BA8, 0x0BAA ], | |
| 170 [ 0x0BAE, 0x0BB5 ], | |
| 171 [ 0x0BB7, 0x0BB9 ], | |
| 172 [ 0x0BBE, 0x0BC2 ], | |
| 173 [ 0x0BC6, 0x0BC8 ], | |
| 174 [ 0x0BCA, 0x0BCD ], | |
| 175 [ 0x0BE7, 0x0BEF ], | |
| 176 [ 0x0C01, 0x0C03 ], | |
| 177 [ 0x0C05, 0x0C0C ], | |
| 178 [ 0x0C0E, 0x0C10 ], | |
| 179 [ 0x0C12, 0x0C28 ], | |
| 180 [ 0x0C2A, 0x0C33 ], | |
| 181 [ 0x0C35, 0x0C39 ], | |
| 182 [ 0x0C3E, 0x0C44 ], | |
| 183 [ 0x0C46, 0x0C48 ], | |
| 184 [ 0x0C4A, 0x0C4D ], | |
| 185 [ 0x0C60, 0x0C61 ], | |
| 186 [ 0x0C66, 0x0C6F ], | |
| 187 [ 0x0C82, 0x0C83 ], | |
| 188 [ 0x0C85, 0x0C8C ], | |
| 189 [ 0x0C8E, 0x0C90 ], | |
| 190 [ 0x0C92, 0x0CA8 ], | |
| 191 [ 0x0CAA, 0x0CB3 ], | |
| 192 [ 0x0CB5, 0x0CB9 ], | |
| 193 [ 0x0CBE, 0x0CC4 ], | |
| 194 [ 0x0CC6, 0x0CC8 ], | |
| 195 [ 0x0CCA, 0x0CCD ], | |
| 196 [ 0x0CDE, 0x0CDE ], | |
| 197 [ 0x0CE0, 0x0CE1 ], | |
| 198 [ 0x0CE6, 0x0CEF ], | |
| 199 [ 0x0D02, 0x0D03 ], | |
| 200 [ 0x0D05, 0x0D0C ], | |
| 201 [ 0x0D0E, 0x0D10 ], | |
| 202 [ 0x0D12, 0x0D28 ], | |
| 203 [ 0x0D2A, 0x0D39 ], | |
| 204 [ 0x0D3E, 0x0D43 ], | |
| 205 [ 0x0D46, 0x0D48 ], | |
| 206 [ 0x0D4A, 0x0D4D ], | |
| 207 [ 0x0D60, 0x0D61 ], | |
| 208 [ 0x0D66, 0x0D6F ], | |
| 209 [ 0x0E01, 0x0E3A ], | |
| 210 [ 0x0E40, 0x0E5B ], | |
| 211 // { 0x0E50, 0x0E59 }, | |
| 212 [ 0x0E81, 0x0E82 ], | |
| 213 [ 0x0E84, 0x0E84 ], | |
| 214 [ 0x0E87, 0x0E88 ], | |
| 215 [ 0x0E8A, 0x0E8A ], | |
| 216 [ 0x0E8D, 0x0E8D ], | |
| 217 [ 0x0E94, 0x0E97 ], | |
| 218 [ 0x0E99, 0x0E9F ], | |
| 219 [ 0x0EA1, 0x0EA3 ], | |
| 220 [ 0x0EA5, 0x0EA5 ], | |
| 221 [ 0x0EA7, 0x0EA7 ], | |
| 222 [ 0x0EAA, 0x0EAB ], | |
| 223 [ 0x0EAD, 0x0EAE ], | |
| 224 [ 0x0EB0, 0x0EB9 ], | |
| 225 [ 0x0EBB, 0x0EBD ], | |
| 226 [ 0x0EC0, 0x0EC4 ], | |
| 227 [ 0x0EC6, 0x0EC6 ], | |
| 228 [ 0x0EC8, 0x0ECD ], | |
| 229 [ 0x0ED0, 0x0ED9 ], | |
| 230 [ 0x0EDC, 0x0EDD ], | |
| 231 [ 0x0F00, 0x0F00 ], | |
| 232 [ 0x0F18, 0x0F19 ], | |
| 233 [ 0x0F20, 0x0F33 ], | |
| 234 [ 0x0F35, 0x0F35 ], | |
| 235 [ 0x0F37, 0x0F37 ], | |
| 236 [ 0x0F39, 0x0F39 ], | |
| 237 [ 0x0F3E, 0x0F47 ], | |
| 238 [ 0x0F49, 0x0F69 ], | |
| 239 [ 0x0F71, 0x0F84 ], | |
| 240 [ 0x0F86, 0x0F8B ], | |
| 241 [ 0x0F90, 0x0F95 ], | |
| 242 [ 0x0F97, 0x0F97 ], | |
| 243 [ 0x0F99, 0x0FAD ], | |
| 244 [ 0x0FB1, 0x0FB7 ], | |
| 245 [ 0x0FB9, 0x0FB9 ], | |
| 246 [ 0x10A0, 0x10C5 ], | |
| 247 [ 0x10D0, 0x10F6 ], | |
| 248 [ 0x1E00, 0x1E9B ], | |
| 249 [ 0x1EA0, 0x1EF9 ], | |
| 250 [ 0x1F00, 0x1F15 ], | |
| 251 [ 0x1F18, 0x1F1D ], | |
| 252 [ 0x1F20, 0x1F45 ], | |
| 253 [ 0x1F48, 0x1F4D ], | |
| 254 [ 0x1F50, 0x1F57 ], | |
| 255 [ 0x1F59, 0x1F59 ], | |
| 256 [ 0x1F5B, 0x1F5B ], | |
| 257 [ 0x1F5D, 0x1F5D ], | |
| 258 [ 0x1F5F, 0x1F7D ], | |
| 259 [ 0x1F80, 0x1FB4 ], | |
| 260 [ 0x1FB6, 0x1FBC ], | |
| 261 [ 0x1FBE, 0x1FBE ], | |
| 262 [ 0x1FC2, 0x1FC4 ], | |
| 263 [ 0x1FC6, 0x1FCC ], | |
| 264 [ 0x1FD0, 0x1FD3 ], | |
| 265 [ 0x1FD6, 0x1FDB ], | |
| 266 [ 0x1FE0, 0x1FEC ], | |
| 267 [ 0x1FF2, 0x1FF4 ], | |
| 268 [ 0x1FF6, 0x1FFC ], | |
| 269 [ 0x203F, 0x2040 ], | |
| 270 [ 0x207F, 0x207F ], | |
| 271 [ 0x2102, 0x2102 ], | |
| 272 [ 0x2107, 0x2107 ], | |
| 273 [ 0x210A, 0x2113 ], | |
| 274 [ 0x2115, 0x2115 ], | |
| 275 [ 0x2118, 0x211D ], | |
| 276 [ 0x2124, 0x2124 ], | |
| 277 [ 0x2126, 0x2126 ], | |
| 278 [ 0x2128, 0x2128 ], | |
| 279 [ 0x212A, 0x2131 ], | |
| 280 [ 0x2133, 0x2138 ], | |
| 281 [ 0x2160, 0x2182 ], | |
| 282 [ 0x3005, 0x3007 ], | |
| 283 [ 0x3021, 0x3029 ], | |
| 284 [ 0x3041, 0x3093 ], | |
| 285 [ 0x309B, 0x309C ], | |
| 286 [ 0x30A1, 0x30F6 ], | |
| 287 [ 0x30FB, 0x30FC ], | |
| 288 [ 0x3105, 0x312C ], | |
| 289 [ 0x4E00, 0x9FA5 ], | |
| 290 [ 0xAC00, 0xD7A3 ], | |
| 291 ]; | |
| 292 | |
| 293 debug { | |
| 294 for (int i = 0; i < table.length; i++) | |
| 295 { | |
| 296 //printf("%x\n", table[i][0]); | |
| 297 assert(table[i][0] <= table[i][1]); | |
| 298 if (i < table.length - 1) | |
| 299 assert(table[i][1] < table[i + 1][0]); | |
| 300 } | |
| 301 } | |
| 302 | |
| 303 if (u > 0xD7A3) | |
| 304 goto Lisnot; | |
| 305 | |
| 306 // Binary search | |
| 307 int mid; | |
| 308 int low; | |
| 309 int high; | |
| 310 | |
| 311 low = 0; | |
| 312 high = table.length - 1; | |
| 313 while (low <= high) | |
| 314 { | |
| 315 mid = (low + high) >> 1; | |
| 316 if (u < table[mid][0]) | |
| 317 high = mid - 1; | |
| 318 else if (u > table[mid][1]) | |
| 319 low = mid + 1; | |
| 320 else | |
| 321 goto Lis; | |
| 322 } | |
| 323 | |
| 324 Lisnot: | |
| 325 debug { | |
| 326 for (int i = 0; i < table.length; i++) | |
| 327 { | |
| 328 assert(u < table[i][0] || u > table[i][1]); | |
| 329 } | |
| 330 } | |
| 331 return false; | |
| 332 | |
| 333 Lis: | |
| 334 debug { | |
| 335 for (int i = 0; i < table.length; i++) | |
| 336 { | |
| 337 if (u >= table[i][0] && u <= table[i][1]) | |
| 338 return 1; | |
| 339 } | |
| 340 assert(0); // should have been in table | |
| 341 } | |
| 342 return true; | |
| 0 | 343 } |
| 344 | |
| 345 class Lexer | |
| 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 { | |
| 360 loc = Loc(mod, 1); | |
| 361 | |
| 362 memset(&token,0,token.sizeof); | |
| 363 this.base = base; | |
| 364 this.end = base + endoffset; | |
| 365 p = base + begoffset; | |
| 366 this.mod = mod; | |
| 367 this.doDocComment = doDocComment; | |
| 368 this.anyToken = 0; | |
| 369 this.commentToken = commentToken; | |
| 370 //initKeywords(); | |
| 371 | |
| 372 /* If first line starts with '#!', ignore the line | |
| 373 */ | |
| 374 | |
| 375 if (p[0] == '#' && p[1] =='!') | |
| 376 { | |
| 377 p += 2; | |
| 378 while (1) | |
| 379 { | |
| 380 ubyte c = *p; | |
| 381 switch (c) | |
| 382 { | |
| 383 case '\n': | |
| 384 p++; | |
| 385 break; | |
| 386 | |
| 387 case '\r': | |
| 388 p++; | |
| 389 if (*p == '\n') | |
| 390 p++; | |
| 391 break; | |
| 392 | |
| 393 case 0: | |
| 394 case 0x1A: | |
| 395 break; | |
| 396 | |
| 397 default: | |
| 398 if (c & 0x80) | |
| 399 { | |
| 400 uint u = decodeUTF(); | |
| 401 if (u == PS || u == LS) | |
| 402 break; | |
| 403 } | |
| 404 p++; | |
| 405 continue; | |
| 406 } | |
| 407 break; | |
| 408 } | |
| 409 loc.linnum = 2; | |
| 410 } | |
| 411 } | |
| 412 | |
| 413 version (DMDV2) { | |
| 414 static Keyword[] keywords = | |
| 415 [ | |
| 416 // { "", TOK }, | |
| 417 | |
| 418 { "this", TOK.TOKthis }, | |
| 419 { "super", TOK.TOKsuper }, | |
| 420 { "assert", TOK.TOKassert }, | |
| 421 { "null", TOK.TOKnull }, | |
| 422 { "true", TOK.TOKtrue }, | |
| 423 { "false", TOK.TOKfalse }, | |
| 424 { "cast", TOK.TOKcast }, | |
| 425 { "new", TOK.TOKnew }, | |
| 426 { "delete", TOK.TOKdelete }, | |
| 427 { "throw", TOK.TOKthrow }, | |
| 428 { "module", TOK.TOKmodule }, | |
| 429 { "pragma", TOK.TOKpragma }, | |
| 430 { "typeof", TOK.TOKtypeof }, | |
| 431 { "typeid", TOK.TOKtypeid }, | |
| 432 | |
| 433 { "template", TOK.TOKtemplate }, | |
| 434 | |
| 435 { "void", TOK.TOKvoid }, | |
| 436 { "byte", TOK.TOKint8 }, | |
| 437 { "ubyte", TOK.TOKuns8 }, | |
| 438 { "short", TOK.TOKint16 }, | |
| 439 { "ushort", TOK.TOKuns16 }, | |
| 440 { "int", TOK.TOKint32 }, | |
| 441 { "uint", TOK.TOKuns32 }, | |
| 442 { "long", TOK.TOKint64 }, | |
| 443 { "ulong", TOK.TOKuns64 }, | |
| 444 { "cent", TOK.TOKcent, }, | |
| 445 { "ucent", TOK.TOKucent, }, | |
| 446 { "float", TOK.TOKfloat32 }, | |
| 447 { "double", TOK.TOKfloat64 }, | |
| 448 { "real", TOK.TOKfloat80 }, | |
| 449 | |
| 450 { "bool", TOK.TOKbool }, | |
| 451 { "char", TOK.TOKchar }, | |
| 452 { "wchar", TOK.TOKwchar }, | |
| 453 { "dchar", TOK.TOKdchar }, | |
| 454 | |
| 455 { "ifloat", TOK.TOKimaginary32 }, | |
| 456 { "idouble", TOK.TOKimaginary64 }, | |
| 457 { "ireal", TOK.TOKimaginary80 }, | |
| 458 | |
| 459 { "cfloat", TOK.TOKcomplex32 }, | |
| 460 { "cdouble", TOK.TOKcomplex64 }, | |
| 461 { "creal", TOK.TOKcomplex80 }, | |
| 462 | |
| 463 { "delegate", TOK.TOKdelegate }, | |
| 464 { "function", TOK.TOKfunction }, | |
| 465 | |
| 466 { "is", TOK.TOKis }, | |
| 467 { "if", TOK.TOKif }, | |
| 468 { "else", TOK.TOKelse }, | |
| 469 { "while", TOK.TOKwhile }, | |
| 470 { "for", TOK.TOKfor }, | |
| 471 { "do", TOK.TOKdo }, | |
| 472 { "switch", TOK.TOKswitch }, | |
| 473 { "case", TOK.TOKcase }, | |
| 474 { "default", TOK.TOKdefault }, | |
| 475 { "break", TOK.TOKbreak }, | |
| 476 { "continue", TOK.TOKcontinue }, | |
| 477 { "synchronized", TOK.TOKsynchronized }, | |
| 478 { "return", TOK.TOKreturn }, | |
| 479 { "goto", TOK.TOKgoto }, | |
| 480 { "try", TOK.TOKtry }, | |
| 481 { "catch", TOK.TOKcatch }, | |
| 482 { "finally", TOK.TOKfinally }, | |
| 483 { "with", TOK.TOKwith }, | |
| 484 { "asm", TOK.TOKasm }, | |
| 485 { "foreach", TOK.TOKforeach }, | |
| 486 { "foreach_reverse", TOK.TOKforeach_reverse }, | |
| 487 { "scope", TOK.TOKscope }, | |
| 488 | |
| 489 { "struct", TOK.TOKstruct }, | |
| 490 { "class", TOK.TOKclass }, | |
| 491 { "interface", TOK.TOKinterface }, | |
| 492 { "union", TOK.TOKunion }, | |
| 493 { "enum", TOK.TOKenum }, | |
| 494 { "import", TOK.TOKimport }, | |
| 495 { "mixin", TOK.TOKmixin }, | |
| 496 { "static", TOK.TOKstatic }, | |
| 497 { "final", TOK.TOKfinal }, | |
| 498 { "const", TOK.TOKconst }, | |
| 499 { "typedef", TOK.TOKtypedef }, | |
| 500 { "alias", TOK.TOKalias }, | |
| 501 { "override", TOK.TOKoverride }, | |
| 502 { "abstract", TOK.TOKabstract }, | |
| 503 { "volatile", TOK.TOKvolatile }, | |
| 504 { "debug", TOK.TOKdebug }, | |
| 505 { "deprecated", TOK.TOKdeprecated }, | |
| 506 { "in", TOK.TOKin }, | |
| 507 { "out", TOK.TOKout }, | |
| 508 { "inout", TOK.TOKinout }, | |
| 509 { "lazy", TOK.TOKlazy }, | |
| 510 { "auto", TOK.TOKauto }, | |
| 511 | |
| 512 { "align", TOK.TOKalign }, | |
| 513 { "extern", TOK.TOKextern }, | |
| 514 { "private", TOK.TOKprivate }, | |
| 515 { "package", TOK.TOKpackage }, | |
| 516 { "protected", TOK.TOKprotected }, | |
| 517 { "public", TOK.TOKpublic }, | |
| 518 { "export", TOK.TOKexport }, | |
| 519 | |
| 520 { "body", TOK.TOKbody }, | |
| 521 { "invariant", TOK.TOKinvariant }, | |
| 522 { "unittest", TOK.TOKunittest }, | |
| 523 { "version", TOK.TOKversion }, | |
| 524 //{ "manifest", TOK.TOKmanifest }, | |
| 525 | |
| 526 // Added after 1.0 | |
| 527 { "ref", TOK.TOKref }, | |
| 528 { "macro", TOK.TOKmacro }, | |
| 529 { "pure", TOK.TOKpure }, | |
| 530 { "nothrow", TOK.TOKnothrow }, | |
| 531 { "__thread", TOK.TOKtls }, | |
| 532 { "__gshared", TOK.TOKgshared }, | |
| 533 { "__traits", TOK.TOKtraits }, | |
| 534 { "__overloadset", TOK.TOKoverloadset }, | |
| 535 { "__FILE__", TOK.TOKfile }, | |
| 536 { "__LINE__", TOK.TOKline }, | |
| 537 { "shared", TOK.TOKshared }, | |
| 538 { "immutable", TOK.TOKimmutable }, | |
| 539 ]; | |
| 540 } else { | |
| 541 static Keyword[] keywords = | |
| 542 [ | |
| 543 // { "", TOK }, | |
| 544 | |
| 545 { "this", TOK.TOKthis }, | |
| 546 { "super", TOK.TOKsuper }, | |
| 547 { "assert", TOK.TOKassert }, | |
| 548 { "null", TOK.TOKnull }, | |
| 549 { "true", TOK.TOKtrue }, | |
| 550 { "false", TOK.TOKfalse }, | |
| 551 { "cast", TOK.TOKcast }, | |
| 552 { "new", TOK.TOKnew }, | |
| 553 { "delete", TOK.TOKdelete }, | |
| 554 { "throw", TOK.TOKthrow }, | |
| 555 { "module", TOK.TOKmodule }, | |
| 556 { "pragma", TOK.TOKpragma }, | |
| 557 { "typeof", TOK.TOKtypeof }, | |
| 558 { "typeid", TOK.TOKtypeid }, | |
| 559 | |
| 560 { "template", TOK.TOKtemplate }, | |
| 561 | |
| 562 { "void", TOK.TOKvoid }, | |
| 563 { "byte", TOK.TOKint8 }, | |
| 564 { "ubyte", TOK.TOKuns8 }, | |
| 565 { "short", TOK.TOKint16 }, | |
| 566 { "ushort", TOK.TOKuns16 }, | |
| 567 { "int", TOK.TOKint32 }, | |
| 568 { "uint", TOK.TOKuns32 }, | |
| 569 { "long", TOK.TOKint64 }, | |
| 570 { "ulong", TOK.TOKuns64 }, | |
| 571 { "cent", TOK.TOKcent, }, | |
| 572 { "ucent", TOK.TOKucent, }, | |
| 573 { "float", TOK.TOKfloat32 }, | |
| 574 { "double", TOK.TOKfloat64 }, | |
| 575 { "real", TOK.TOKfloat80 }, | |
| 576 | |
| 577 { "bool", TOK.TOKbool }, | |
| 578 { "char", TOK.TOKchar }, | |
| 579 { "wchar", TOK.TOKwchar }, | |
| 580 { "dchar", TOK.TOKdchar }, | |
| 581 | |
| 582 { "ifloat", TOK.TOKimaginary32 }, | |
| 583 { "idouble", TOK.TOKimaginary64 }, | |
| 584 { "ireal", TOK.TOKimaginary80 }, | |
| 585 | |
| 586 { "cfloat", TOK.TOKcomplex32 }, | |
| 587 { "cdouble", TOK.TOKcomplex64 }, | |
| 588 { "creal", TOK.TOKcomplex80 }, | |
| 589 | |
| 590 { "delegate", TOK.TOKdelegate }, | |
| 591 { "function", TOK.TOKfunction }, | |
| 592 | |
| 593 { "is", TOK.TOKis }, | |
| 594 { "if", TOK.TOKif }, | |
| 595 { "else", TOK.TOKelse }, | |
| 596 { "while", TOK.TOKwhile }, | |
| 597 { "for", TOK.TOKfor }, | |
| 598 { "do", TOK.TOKdo }, | |
| 599 { "switch", TOK.TOKswitch }, | |
| 600 { "case", TOK.TOKcase }, | |
| 601 { "default", TOK.TOKdefault }, | |
| 602 { "break", TOK.TOKbreak }, | |
| 603 { "continue", TOK.TOKcontinue }, | |
| 604 { "synchronized", TOK.TOKsynchronized }, | |
| 605 { "return", TOK.TOKreturn }, | |
| 606 { "goto", TOK.TOKgoto }, | |
| 607 { "try", TOK.TOKtry }, | |
| 608 { "catch", TOK.TOKcatch }, | |
| 609 { "finally", TOK.TOKfinally }, | |
| 610 { "with", TOK.TOKwith }, | |
| 611 { "asm", TOK.TOKasm }, | |
| 612 { "foreach", TOK.TOKforeach }, | |
| 613 { "foreach_reverse", TOK.TOKforeach_reverse }, | |
| 614 { "scope", TOK.TOKscope }, | |
| 615 | |
| 616 { "struct", TOK.TOKstruct }, | |
| 617 { "class", TOK.TOKclass }, | |
| 618 { "interface", TOK.TOKinterface }, | |
| 619 { "union", TOK.TOKunion }, | |
| 620 { "enum", TOK.TOKenum }, | |
| 621 { "import", TOK.TOKimport }, | |
| 622 { "mixin", TOK.TOKmixin }, | |
| 623 { "static", TOK.TOKstatic }, | |
| 624 { "final", TOK.TOKfinal }, | |
| 625 { "const", TOK.TOKconst }, | |
| 626 { "typedef", TOK.TOKtypedef }, | |
| 627 { "alias", TOK.TOKalias }, | |
| 628 { "override", TOK.TOKoverride }, | |
| 629 { "abstract", TOK.TOKabstract }, | |
| 630 { "volatile", TOK.TOKvolatile }, | |
| 631 { "debug", TOK.TOKdebug }, | |
| 632 { "deprecated", TOK.TOKdeprecated }, | |
| 633 { "in", TOK.TOKin }, | |
| 634 { "out", TOK.TOKout }, | |
| 635 { "inout", TOK.TOKinout }, | |
| 636 { "lazy", TOK.TOKlazy }, | |
| 637 { "auto", TOK.TOKauto }, | |
| 638 | |
| 639 { "align", TOK.TOKalign }, | |
| 640 { "extern", TOK.TOKextern }, | |
| 641 { "private", TOK.TOKprivate }, | |
| 642 { "package", TOK.TOKpackage }, | |
| 643 { "protected", TOK.TOKprotected }, | |
| 644 { "public", TOK.TOKpublic }, | |
| 645 { "export", TOK.TOKexport }, | |
| 646 | |
| 647 { "body", TOK.TOKbody }, | |
| 648 { "invariant", TOK.TOKinvariant }, | |
| 649 { "unittest", TOK.TOKunittest }, | |
| 650 { "version", TOK.TOKversion }, | |
| 651 //{ "manifest", TOK.TOKmanifest }, | |
| 652 | |
| 653 // Added after 1.0 | |
| 654 { "ref", TOK.TOKref }, | |
| 655 { "macro", TOK.TOKmacro }, | |
| 656 ]; | |
| 657 } | |
| 658 | |
| 659 static ubyte cmtable[256]; | |
| 660 enum CMoctal = 0x1; | |
| 661 enum CMhex = 0x2; | |
| 662 enum CMidchar = 0x4; | |
| 663 | |
| 664 ubyte isoctal (ubyte c) { return cmtable[c] & CMoctal; } | |
| 665 ubyte ishex (ubyte c) { return cmtable[c] & CMhex; } | |
| 666 ubyte isidchar(ubyte c) { return cmtable[c] & CMidchar; } | |
| 667 | |
| 668 static void cmtable_init() | |
| 669 { | |
| 670 for (uint c = 0; c < cmtable.length; c++) | |
| 671 { | |
| 672 if ('0' <= c && c <= '7') | |
| 673 cmtable[c] |= CMoctal; | |
| 674 if (isdigit(c) || ('a' <= c && c <= 'f') || ('A' <= c && c <= 'F')) | |
| 675 cmtable[c] |= CMhex; | |
| 676 if (isalnum(c) || c == '_') | |
| 677 cmtable[c] |= CMidchar; | |
| 678 } | |
| 679 } | |
|
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680 |
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681 static StringTable stringtable() |
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682 { |
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683 return global.stringtable; |
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684 } |
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685 |
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686 static OutBuffer stringbuffer() |
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687 { |
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688 return global.stringbuffer; |
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689 } |
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690 |
| 0 | 691 static void initKeywords() |
| 692 { | |
| 693 uint nkeywords = keywords.length; | |
| 694 | |
| 695 if (global.params.Dversion == 1) | |
| 696 nkeywords -= 2; | |
| 697 | |
| 698 cmtable_init(); | |
| 699 | |
| 700 for (uint u = 0; u < nkeywords; u++) | |
| 701 { | |
| 34 | 702 //printf("keyword[%d] = '%.*s'\n",u, keywords[u].name); |
| 0 | 703 string s = keywords[u].name; |
| 704 TOK v = keywords[u].value; | |
| 705 StringValue* sv = stringtable.insert(s); | |
| 706 sv.ptrvalue = cast(void*) new Identifier(sv.lstring.string_, v); | |
| 707 | |
| 708 //printf("tochars[%d] = '%s'\n",v, s); | |
| 709 Token.tochars[v] = s; | |
| 710 } | |
| 711 | |
| 712 Token.tochars[TOK.TOKeof] = "EOF"; | |
| 713 Token.tochars[TOK.TOKlcurly] = "{"; | |
| 714 Token.tochars[TOK.TOKrcurly] = "}"; | |
| 715 Token.tochars[TOK.TOKlparen] = "("; | |
| 716 Token.tochars[TOK.TOKrparen] = ")"; | |
| 717 Token.tochars[TOK.TOKlbracket] = "["; | |
| 718 Token.tochars[TOK.TOKrbracket] = "]"; | |
| 719 Token.tochars[TOK.TOKsemicolon] = ";"; | |
| 720 Token.tochars[TOK.TOKcolon] = ":"; | |
| 721 Token.tochars[TOK.TOKcomma] = ","; | |
| 722 Token.tochars[TOK.TOKdot] = "."; | |
| 723 Token.tochars[TOK.TOKxor] = "^"; | |
| 724 Token.tochars[TOK.TOKxorass] = "^="; | |
| 725 Token.tochars[TOK.TOKassign] = "="; | |
| 726 Token.tochars[TOK.TOKconstruct] = "="; | |
| 727 version (DMDV2) { | |
| 728 Token.tochars[TOK.TOKblit] = "="; | |
| 729 } | |
| 730 Token.tochars[TOK.TOKlt] = "<"; | |
| 731 Token.tochars[TOK.TOKgt] = ">"; | |
| 732 Token.tochars[TOK.TOKle] = "<="; | |
| 733 Token.tochars[TOK.TOKge] = ">="; | |
| 734 Token.tochars[TOK.TOKequal] = "=="; | |
| 735 Token.tochars[TOK.TOKnotequal] = "!="; | |
| 736 Token.tochars[TOK.TOKnotidentity] = "!is"; | |
| 737 Token.tochars[TOK.TOKtobool] = "!!"; | |
| 738 | |
| 739 Token.tochars[TOK.TOKunord] = "!<>="; | |
| 740 Token.tochars[TOK.TOKue] = "!<>"; | |
| 741 Token.tochars[TOK.TOKlg] = "<>"; | |
| 742 Token.tochars[TOK.TOKleg] = "<>="; | |
| 743 Token.tochars[TOK.TOKule] = "!>"; | |
| 744 Token.tochars[TOK.TOKul] = "!>="; | |
| 745 Token.tochars[TOK.TOKuge] = "!<"; | |
| 746 Token.tochars[TOK.TOKug] = "!<="; | |
| 747 | |
| 748 Token.tochars[TOK.TOKnot] = "!"; | |
| 749 Token.tochars[TOK.TOKtobool] = "!!"; | |
| 750 Token.tochars[TOK.TOKshl] = "<<"; | |
| 751 Token.tochars[TOK.TOKshr] = ">>"; | |
| 752 Token.tochars[TOK.TOKushr] = ">>>"; | |
| 753 Token.tochars[TOK.TOKadd] = "+"; | |
| 754 Token.tochars[TOK.TOKmin] = "-"; | |
| 755 Token.tochars[TOK.TOKmul] = "*"; | |
| 756 Token.tochars[TOK.TOKdiv] = "/"; | |
| 757 Token.tochars[TOK.TOKmod] = "%"; | |
| 758 Token.tochars[TOK.TOKslice] = ".."; | |
| 759 Token.tochars[TOK.TOKdotdotdot] = "..."; | |
| 760 Token.tochars[TOK.TOKand] = "&"; | |
| 761 Token.tochars[TOK.TOKandand] = "&&"; | |
| 762 Token.tochars[TOK.TOKor] = "|"; | |
| 763 Token.tochars[TOK.TOKoror] = "||"; | |
| 764 Token.tochars[TOK.TOKarray] = "[]"; | |
| 765 Token.tochars[TOK.TOKindex] = "[i]"; | |
| 766 Token.tochars[TOK.TOKaddress] = "&"; | |
| 767 Token.tochars[TOK.TOKstar] = "*"; | |
| 768 Token.tochars[TOK.TOKtilde] = "~"; | |
| 769 Token.tochars[TOK.TOKdollar] = "$"; | |
| 770 Token.tochars[TOK.TOKcast] = "cast"; | |
| 771 Token.tochars[TOK.TOKplusplus] = "++"; | |
| 772 Token.tochars[TOK.TOKminusminus] = "--"; | |
| 773 Token.tochars[TOK.TOKtype] = "type"; | |
| 774 Token.tochars[TOK.TOKquestion] = "?"; | |
| 775 Token.tochars[TOK.TOKneg] = "-"; | |
| 776 Token.tochars[TOK.TOKuadd] = "+"; | |
| 777 Token.tochars[TOK.TOKvar] = "var"; | |
| 778 Token.tochars[TOK.TOKaddass] = "+="; | |
| 779 Token.tochars[TOK.TOKminass] = "-="; | |
| 780 Token.tochars[TOK.TOKmulass] = "*="; | |
| 781 Token.tochars[TOK.TOKdivass] = "/="; | |
| 782 Token.tochars[TOK.TOKmodass] = "%="; | |
| 783 Token.tochars[TOK.TOKshlass] = "<<="; | |
| 784 Token.tochars[TOK.TOKshrass] = ">>="; | |
| 785 Token.tochars[TOK.TOKushrass] = ">>>="; | |
| 786 Token.tochars[TOK.TOKandass] = "&="; | |
| 787 Token.tochars[TOK.TOKorass] = "|="; | |
| 788 Token.tochars[TOK.TOKcatass] = "~="; | |
| 789 Token.tochars[TOK.TOKcat] = "~"; | |
| 790 Token.tochars[TOK.TOKcall] = "call"; | |
| 791 Token.tochars[TOK.TOKidentity] = "is"; | |
| 792 Token.tochars[TOK.TOKnotidentity] = "!is"; | |
| 793 | |
| 794 Token.tochars[TOK.TOKorass] = "|="; | |
| 795 Token.tochars[TOK.TOKidentifier] = "identifier"; | |
| 796 Token.tochars[TOK.TOKat] = "@"; | |
|
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797 Token.tochars[TOK.TOKpow] = "^^"; |
| 135 | 798 Token.tochars[TOK.TOKpowass] = "^^="; |
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799 |
| 0 | 800 // For debugging |
| 73 | 801 Token.tochars[TOKerror] = "error"; |
| 0 | 802 Token.tochars[TOK.TOKdotexp] = "dotexp"; |
| 803 Token.tochars[TOK.TOKdotti] = "dotti"; | |
| 804 Token.tochars[TOK.TOKdotvar] = "dotvar"; | |
| 805 Token.tochars[TOK.TOKdottype] = "dottype"; | |
| 806 Token.tochars[TOK.TOKsymoff] = "symoff"; | |
| 807 Token.tochars[TOK.TOKarraylength] = "arraylength"; | |
| 808 Token.tochars[TOK.TOKarrayliteral] = "arrayliteral"; | |
| 809 Token.tochars[TOK.TOKassocarrayliteral] = "assocarrayliteral"; | |
| 810 Token.tochars[TOK.TOKstructliteral] = "structliteral"; | |
| 811 Token.tochars[TOK.TOKstring] = "string"; | |
| 812 Token.tochars[TOK.TOKdsymbol] = "symbol"; | |
| 813 Token.tochars[TOK.TOKtuple] = "tuple"; | |
| 814 Token.tochars[TOK.TOKdeclaration] = "declaration"; | |
| 815 Token.tochars[TOK.TOKdottd] = "dottd"; | |
| 816 Token.tochars[TOK.TOKon_scope_exit] = "scope(exit)"; | |
| 817 Token.tochars[TOK.TOKon_scope_success] = "scope(success)"; | |
| 818 Token.tochars[TOK.TOKon_scope_failure] = "scope(failure)"; | |
| 819 } | |
| 820 | |
| 821 static Identifier idPool(string s) | |
| 822 { | |
| 823 StringValue* sv = stringtable.update(s); | |
| 824 Identifier id = cast(Identifier) sv.ptrvalue; | |
| 825 if (id is null) | |
| 826 { | |
| 827 id = new Identifier(sv.lstring.string_, TOK.TOKidentifier); | |
| 828 sv.ptrvalue = cast(void*)id; | |
| 829 } | |
| 830 | |
| 831 return id; | |
| 832 } | |
| 833 | |
| 834 static Identifier uniqueId(string s) | |
| 835 { | |
|
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836 return uniqueId(s, ++global.num); |
| 0 | 837 } |
| 838 | |
| 839 /********************************************* | |
| 840 * Create a unique identifier using the prefix s. | |
| 841 */ | |
| 842 static Identifier uniqueId(string s, int num) | |
| 843 { | |
| 844 char buffer[32]; | |
| 845 size_t slen = s.length; | |
| 846 | |
| 847 assert(slen + num.sizeof * 3 + 1 <= buffer.sizeof); | |
| 848 int len = sprintf(buffer.ptr, "%.*s%d", s, num); | |
| 849 | |
| 850 return idPool(buffer[0..len].idup); | |
| 851 } | |
| 852 | |
| 853 TOK nextToken() | |
| 854 { | |
| 855 Token *t; | |
| 856 | |
| 857 if (token.next) | |
| 858 { | |
| 859 t = token.next; | |
| 860 memcpy(&token, t, Token.sizeof); | |
|
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861 t.next = global.freelist; |
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862 global.freelist = t; |
| 0 | 863 } |
| 864 else | |
| 865 { | |
| 866 scan(&token); | |
| 867 } | |
| 868 | |
| 869 //token.print(); | |
| 870 return token.value; | |
| 871 } | |
| 872 | |
| 873 /*********************** | |
| 874 * Look ahead at next token's value. | |
| 875 */ | |
| 876 TOK peekNext() | |
| 877 { | |
| 878 return peek(&token).value; | |
| 879 } | |
| 880 | |
| 163 | 881 /*********************** |
| 882 * Look 2 tokens ahead at value. | |
| 883 */ | |
| 0 | 884 TOK peekNext2() |
| 885 { | |
| 163 | 886 Token* t = peek(&token); |
| 887 return peek(t).value; | |
| 0 | 888 } |
| 889 | |
| 890 void scan(Token* t) | |
| 891 { | |
| 892 uint lastLine = loc.linnum; | |
| 893 uint linnum; | |
| 894 | |
| 895 t.blockComment = null; | |
| 896 t.lineComment = null; | |
| 897 while (1) | |
| 898 { | |
| 899 t.ptr = p; | |
| 900 //printf("p = %p, *p = '%c'\n",p,*p); | |
| 901 switch (*p) | |
| 902 { | |
| 903 case 0: | |
| 904 case 0x1A: | |
| 905 t.value = TOK.TOKeof; // end of file | |
| 906 return; | |
| 907 | |
| 908 case ' ': | |
| 909 case '\t': | |
| 910 case '\v': | |
| 911 case '\f': | |
| 912 p++; | |
| 913 continue; // skip white space | |
| 914 | |
| 915 case '\r': | |
| 916 p++; | |
| 917 if (*p != '\n') // if CR stands by itself | |
| 918 loc.linnum++; | |
| 919 continue; // skip white space | |
| 920 | |
| 921 case '\n': | |
| 922 p++; | |
| 923 loc.linnum++; | |
| 924 continue; // skip white space | |
| 925 | |
| 926 case '0': case '1': case '2': case '3': case '4': | |
| 927 case '5': case '6': case '7': case '8': case '9': | |
| 928 t.value = number(t); | |
| 929 return; | |
| 930 | |
| 931 version (CSTRINGS) { | |
| 932 case '\'': | |
| 933 t.value = charConstant(t, 0); | |
| 934 return; | |
| 935 | |
| 936 case '"': | |
| 937 t.value = stringConstant(t,0); | |
| 938 return; | |
| 939 | |
| 940 case 'l': | |
| 941 case 'L': | |
| 942 if (p[1] == '\'') | |
| 943 { | |
| 944 p++; | |
| 945 t.value = charConstant(t, 1); | |
| 946 return; | |
| 947 } | |
| 948 else if (p[1] == '"') | |
| 949 { | |
| 950 p++; | |
| 951 t.value = stringConstant(t, 1); | |
| 952 return; | |
| 953 } | |
| 954 } else { | |
| 955 case '\'': | |
| 956 t.value = charConstant(t,0); | |
| 957 return; | |
| 958 | |
| 959 case 'r': | |
| 960 if (p[1] != '"') | |
| 961 goto case_ident; | |
| 962 p++; | |
| 963 case '`': | |
| 964 t.value = wysiwygStringConstant(t, *p); | |
| 965 return; | |
| 966 | |
| 967 case 'x': | |
| 968 if (p[1] != '"') | |
| 969 goto case_ident; | |
| 970 p++; | |
| 971 t.value = hexStringConstant(t); | |
| 972 return; | |
| 973 | |
| 974 version (DMDV2) { | |
| 975 case 'q': | |
| 976 if (p[1] == '"') | |
| 977 { | |
| 978 p++; | |
| 979 t.value = delimitedStringConstant(t); | |
| 980 return; | |
| 981 } | |
| 982 else if (p[1] == '{') | |
| 983 { | |
| 984 p++; | |
| 985 t.value = tokenStringConstant(t); | |
| 986 return; | |
| 987 } | |
| 988 else | |
| 989 goto case_ident; | |
| 990 } | |
| 991 | |
| 992 case '"': | |
| 993 t.value = escapeStringConstant(t,0); | |
| 994 return; | |
| 995 version (TEXTUAL_ASSEMBLY_OUT) { | |
| 996 } else { | |
| 997 case '\\': // escaped string literal | |
| 998 { uint c; | |
| 999 ubyte* pstart = p; | |
| 1000 | |
| 1001 stringbuffer.reset(); | |
| 1002 do | |
| 1003 { | |
| 1004 p++; | |
| 1005 switch (*p) | |
| 1006 { | |
| 1007 case 'u': | |
| 1008 case 'U': | |
| 1009 case '&': | |
| 1010 c = escapeSequence(); | |
| 1011 stringbuffer.writeUTF8(c); | |
| 1012 break; | |
| 1013 | |
| 1014 default: | |
| 1015 c = escapeSequence(); | |
| 1016 stringbuffer.writeByte(c); | |
| 1017 break; | |
| 1018 } | |
| 1019 } while (*p == '\\'); | |
| 1020 t.len = stringbuffer.offset; | |
| 1021 stringbuffer.writeByte(0); | |
| 2 | 1022 char* cc = cast(char*)GC.malloc(stringbuffer.offset); |
| 0 | 1023 memcpy(cc, stringbuffer.data, stringbuffer.offset); |
| 1024 t.ustring = cc; | |
| 1025 t.postfix = 0; | |
| 1026 t.value = TOK.TOKstring; | |
| 1027 if (!global.params.useDeprecated) | |
| 1028 error("Escape String literal %.*s is deprecated, use double quoted string literal \"%.*s\" instead", p - pstart, pstart, p - pstart, pstart); | |
| 1029 return; | |
| 1030 } | |
| 1031 } | |
| 1032 case 'l': | |
| 1033 case 'L': | |
| 1034 } | |
| 1035 case 'a': case 'b': case 'c': case 'd': case 'e': | |
| 1036 case 'f': case 'g': case 'h': case 'i': case 'j': | |
| 1037 case 'k': case 'm': case 'n': case 'o': | |
| 1038 version (DMDV2) { | |
| 1039 case 'p': /*case 'q': case 'r':*/ case 's': case 't': | |
| 1040 } else { | |
| 1041 case 'p': case 'q': /*case 'r':*/ case 's': case 't': | |
| 1042 } | |
| 1043 case 'u': case 'v': case 'w': /*case 'x':*/ case 'y': | |
| 1044 case 'z': | |
| 1045 case 'A': case 'B': case 'C': case 'D': case 'E': | |
| 1046 case 'F': case 'G': case 'H': case 'I': case 'J': | |
| 1047 case 'K': case 'M': case 'N': case 'O': | |
| 1048 case 'P': case 'Q': case 'R': case 'S': case 'T': | |
| 1049 case 'U': case 'V': case 'W': case 'X': case 'Y': | |
| 1050 case 'Z': | |
| 1051 case '_': | |
| 1052 case_ident: | |
| 135 | 1053 { |
| 1054 ubyte c; | |
| 0 | 1055 |
| 135 | 1056 while (1) |
| 1057 { | |
| 1058 c = *++p; | |
| 1059 if (isidchar(c)) | |
| 1060 continue; | |
| 1061 else if (c & 0x80) | |
| 1062 { | |
| 1063 ubyte *s = p; | |
| 1064 uint u = decodeUTF(); | |
| 1065 if (isUniAlpha(u)) | |
| 1066 continue; | |
| 1067 error("char 0x%04x not allowed in identifier", u); | |
| 1068 p = s; | |
| 1069 } | |
| 1070 break; | |
| 1071 } | |
| 1072 | |
| 1073 StringValue *sv = stringtable.update((cast(immutable(char)*)t.ptr)[0.. p - t.ptr]); | |
| 1074 Identifier id = cast(Identifier) sv.ptrvalue; | |
| 1075 | |
| 0 | 1076 if (id is null) |
| 1077 { id = new Identifier(sv.lstring.string_, TOK.TOKidentifier); | |
| 1078 sv.ptrvalue = cast(void*)id; | |
| 1079 } | |
| 1080 t.ident = id; | |
| 1081 t.value = cast(TOK) id.value; | |
| 1082 anyToken = 1; | |
| 1083 if (*t.ptr == '_') // if special identifier token | |
| 1084 { | |
| 1085 static char date[11+1]; | |
| 1086 static char time[8+1]; | |
| 1087 static char timestamp[24+1]; | |
| 1088 | |
| 1089 if (!date[0]) // lazy evaluation | |
| 1090 { time_t tm; | |
| 1091 char *p; | |
| 1092 | |
| 1093 .time(&tm); | |
| 1094 p = ctime(&tm); | |
| 1095 assert(p); | |
| 1096 sprintf(date.ptr, "%.6s %.4s", p + 4, p + 20); | |
| 1097 sprintf(time.ptr, "%.8s", p + 11); | |
| 1098 sprintf(timestamp.ptr, "%.24s", p); | |
| 1099 } | |
| 1100 | |
| 1101 ///version (DMDV1) { | |
| 1102 /// if (mod && id == Id.FILE) | |
| 1103 /// { | |
| 1104 /// t.ustring = cast(ubyte*)(loc.filename ? loc.filename : mod.ident.toChars()); | |
| 1105 /// goto Lstr; | |
| 1106 /// } | |
| 1107 /// else if (mod && id == Id.LINE) | |
| 1108 /// { | |
| 1109 /// t.value = TOK.TOKint64v; | |
| 1110 /// t.uns64value = loc.linnum; | |
| 1111 /// } | |
| 1112 /// else | |
| 1113 ///} | |
| 1114 if (id == Id.DATE) | |
| 1115 { | |
| 1116 t.ustring = date.ptr; | |
| 1117 goto Lstr; | |
| 1118 } | |
| 1119 else if (id == Id.TIME) | |
| 1120 { | |
| 1121 t.ustring = time.ptr; | |
| 1122 goto Lstr; | |
| 1123 } | |
| 1124 else if (id == Id.VENDOR) | |
| 1125 { | |
| 1126 t.ustring = "Digital Mars D".ptr; | |
| 1127 goto Lstr; | |
| 1128 } | |
| 1129 else if (id == Id.TIMESTAMP) | |
| 1130 { | |
| 1131 t.ustring = timestamp.ptr; | |
| 1132 Lstr: | |
| 1133 t.value = TOK.TOKstring; | |
| 1134 Llen: | |
| 1135 t.postfix = 0; | |
| 1136 t.len = strlen(cast(char*)t.ustring); | |
| 1137 } | |
| 1138 else if (id == Id.VERSIONX) | |
| 1139 { | |
| 1140 uint major = 0; | |
| 1141 uint minor = 0; | |
| 1142 | |
| 1143 foreach (char cc; global.version_[1..$]) | |
| 1144 { | |
| 1145 if (isdigit(cc)) | |
| 1146 minor = minor * 10 + cc - '0'; | |
| 1147 else if (cc == '.') | |
| 1148 { | |
| 1149 major = minor; | |
| 1150 minor = 0; | |
| 1151 } | |
| 1152 else | |
| 1153 break; | |
| 1154 } | |
| 1155 t.value = TOK.TOKint64v; | |
| 1156 t.uns64value = major * 1000 + minor; | |
| 1157 } | |
| 1158 ///version (DMDV2) { | |
| 1159 else if (id == Id.EOFX) | |
| 1160 { | |
| 1161 t.value = TOK.TOKeof; | |
| 1162 // Advance scanner to end of file | |
| 1163 while (!(*p == 0 || *p == 0x1A)) | |
| 1164 p++; | |
| 1165 } | |
| 1166 ///} | |
| 1167 } | |
| 1168 //printf("t.value = %d\n",t.value); | |
| 1169 return; | |
| 1170 } | |
| 1171 | |
| 1172 case '/': | |
| 1173 p++; | |
| 1174 switch (*p) | |
| 1175 { | |
| 1176 case '=': | |
| 1177 p++; | |
| 1178 t.value = TOK.TOKdivass; | |
| 1179 return; | |
| 1180 | |
| 1181 case '*': | |
| 1182 p++; | |
| 1183 linnum = loc.linnum; | |
| 1184 while (1) | |
| 1185 { | |
| 1186 while (1) | |
| 1187 { | |
| 1188 ubyte c = *p; | |
| 1189 switch (c) | |
| 1190 { | |
| 1191 case '/': | |
| 1192 break; | |
| 1193 | |
| 1194 case '\n': | |
| 1195 loc.linnum++; | |
| 1196 p++; | |
| 1197 continue; | |
| 1198 | |
| 1199 case '\r': | |
| 1200 p++; | |
| 1201 if (*p != '\n') | |
| 1202 loc.linnum++; | |
| 1203 continue; | |
| 1204 | |
| 1205 case 0: | |
| 1206 case 0x1A: | |
| 1207 error("unterminated /* */ comment"); | |
| 1208 p = end; | |
| 1209 t.value = TOK.TOKeof; | |
| 1210 return; | |
| 1211 | |
| 1212 default: | |
| 1213 if (c & 0x80) | |
| 1214 { uint u = decodeUTF(); | |
| 1215 if (u == PS || u == LS) | |
| 1216 loc.linnum++; | |
| 1217 } | |
| 1218 p++; | |
| 1219 continue; | |
| 1220 } | |
| 1221 break; | |
| 1222 } | |
| 1223 p++; | |
| 1224 if (p[-2] == '*' && p - 3 != t.ptr) | |
| 1225 break; | |
| 1226 } | |
| 1227 if (commentToken) | |
| 1228 { | |
| 1229 t.value = TOK.TOKcomment; | |
| 1230 return; | |
| 1231 } | |
| 1232 else if (doDocComment && t.ptr[2] == '*' && p - 4 != t.ptr) | |
| 1233 { // if /** but not /**/ | |
| 1234 getDocComment(t, lastLine == linnum); | |
| 1235 } | |
| 1236 continue; | |
| 1237 | |
| 1238 case '/': // do // style comments | |
| 1239 linnum = loc.linnum; | |
| 1240 while (1) | |
| 1241 { ubyte c = *++p; | |
| 1242 switch (c) | |
| 1243 { | |
| 1244 case '\n': | |
| 1245 break; | |
| 1246 | |
| 1247 case '\r': | |
| 1248 if (p[1] == '\n') | |
| 1249 p++; | |
| 1250 break; | |
| 1251 | |
| 1252 case 0: | |
| 1253 case 0x1A: | |
| 1254 if (commentToken) | |
| 1255 { | |
| 1256 p = end; | |
| 1257 t.value = TOK.TOKcomment; | |
| 1258 return; | |
| 1259 } | |
|
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diff
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|
1260 if (doDocComment && t.ptr[2] == '/' || t.ptr[2] == '!') // '///' or '//!' |
| 0 | 1261 getDocComment(t, lastLine == linnum); |
| 1262 p = end; | |
| 1263 t.value = TOK.TOKeof; | |
| 1264 return; | |
| 1265 | |
| 1266 default: | |
| 1267 if (c & 0x80) | |
| 1268 { uint u = decodeUTF(); | |
| 1269 if (u == PS || u == LS) | |
| 1270 break; | |
| 1271 } | |
| 1272 continue; | |
| 1273 } | |
| 1274 break; | |
| 1275 } | |
| 1276 | |
| 1277 if (commentToken) | |
| 1278 { | |
| 1279 p++; | |
| 1280 loc.linnum++; | |
| 1281 t.value = TOK.TOKcomment; | |
| 1282 return; | |
| 1283 } | |
|
157
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diff
changeset
|
1284 if (doDocComment && t.ptr[2] == '/' || t.ptr[2] == '!') // '///' or '//!' |
| 0 | 1285 getDocComment(t, lastLine == linnum); |
| 1286 | |
| 1287 p++; | |
| 1288 loc.linnum++; | |
| 1289 continue; | |
| 1290 | |
| 1291 case '+': | |
| 1292 { | |
| 1293 int nest; | |
| 1294 | |
| 1295 linnum = loc.linnum; | |
| 1296 p++; | |
| 1297 nest = 1; | |
| 1298 while (1) | |
| 1299 { ubyte c = *p; | |
| 1300 switch (c) | |
| 1301 { | |
| 1302 case '/': | |
| 1303 p++; | |
| 1304 if (*p == '+') | |
| 1305 { | |
| 1306 p++; | |
| 1307 nest++; | |
| 1308 } | |
| 1309 continue; | |
| 1310 | |
| 1311 case '+': | |
| 1312 p++; | |
| 1313 if (*p == '/') | |
| 1314 { | |
| 1315 p++; | |
| 1316 if (--nest == 0) | |
| 1317 break; | |
| 1318 } | |
| 1319 continue; | |
| 1320 | |
| 1321 case '\r': | |
| 1322 p++; | |
| 1323 if (*p != '\n') | |
| 1324 loc.linnum++; | |
| 1325 continue; | |
| 1326 | |
| 1327 case '\n': | |
| 1328 loc.linnum++; | |
| 1329 p++; | |
| 1330 continue; | |
| 1331 | |
| 1332 case 0: | |
| 1333 case 0x1A: | |
| 1334 error("unterminated /+ +/ comment"); | |
| 1335 p = end; | |
| 1336 t.value = TOK.TOKeof; | |
| 1337 return; | |
| 1338 | |
| 1339 default: | |
| 1340 if (c & 0x80) | |
| 1341 { uint u = decodeUTF(); | |
| 1342 if (u == PS || u == LS) | |
| 1343 loc.linnum++; | |
| 1344 } | |
| 1345 p++; | |
| 1346 continue; | |
| 1347 } | |
| 1348 break; | |
| 1349 } | |
| 1350 if (commentToken) | |
| 1351 { | |
| 1352 t.value = TOK.TOKcomment; | |
| 1353 return; | |
| 1354 } | |
| 1355 if (doDocComment && t.ptr[2] == '+' && p - 4 != t.ptr) | |
| 1356 { // if /++ but not /++/ | |
| 1357 getDocComment(t, lastLine == linnum); | |
| 1358 } | |
| 1359 continue; | |
| 1360 } | |
| 1361 | |
| 1362 default: | |
| 1363 break; /// | |
| 1364 } | |
| 1365 t.value = TOK.TOKdiv; | |
| 1366 return; | |
| 1367 | |
| 1368 case '.': | |
| 1369 p++; | |
| 1370 if (isdigit(*p)) | |
| 1371 { /* Note that we don't allow ._1 and ._ as being | |
| 1372 * valid floating point numbers. | |
| 1373 */ | |
| 1374 p--; | |
| 1375 t.value = inreal(t); | |
| 1376 } | |
| 1377 else if (p[0] == '.') | |
| 1378 { | |
| 1379 if (p[1] == '.') | |
| 1380 { p += 2; | |
| 1381 t.value = TOK.TOKdotdotdot; | |
| 1382 } | |
| 1383 else | |
| 1384 { p++; | |
| 1385 t.value = TOK.TOKslice; | |
| 1386 } | |
| 1387 } | |
| 1388 else | |
| 1389 t.value = TOK.TOKdot; | |
| 1390 return; | |
| 1391 | |
| 1392 case '&': | |
| 1393 p++; | |
| 1394 if (*p == '=') | |
| 1395 { p++; | |
| 1396 t.value = TOK.TOKandass; | |
| 1397 } | |
| 1398 else if (*p == '&') | |
| 1399 { p++; | |
| 1400 t.value = TOK.TOKandand; | |
| 1401 } | |
| 1402 else | |
| 1403 t.value = TOK.TOKand; | |
| 1404 return; | |
| 1405 | |
| 1406 case '|': | |
| 1407 p++; | |
| 1408 if (*p == '=') | |
| 1409 { p++; | |
| 1410 t.value = TOK.TOKorass; | |
| 1411 } | |
| 1412 else if (*p == '|') | |
| 1413 { p++; | |
| 1414 t.value = TOK.TOKoror; | |
| 1415 } | |
| 1416 else | |
| 1417 t.value = TOK.TOKor; | |
| 1418 return; | |
| 1419 | |
| 1420 case '-': | |
| 1421 p++; | |
| 1422 if (*p == '=') | |
| 1423 { p++; | |
| 1424 t.value = TOK.TOKminass; | |
| 1425 } | |
| 1426 /// #if 0 | |
| 1427 /// else if (*p == '>') | |
| 1428 /// { p++; | |
| 1429 /// t.value = TOK.TOKarrow; | |
| 1430 /// } | |
| 1431 /// #endif | |
| 1432 else if (*p == '-') | |
| 1433 { p++; | |
| 1434 t.value = TOK.TOKminusminus; | |
| 1435 } | |
| 1436 else | |
| 1437 t.value = TOK.TOKmin; | |
| 1438 return; | |
| 1439 | |
| 1440 case '+': | |
| 1441 p++; | |
| 1442 if (*p == '=') | |
| 1443 { p++; | |
| 1444 t.value = TOK.TOKaddass; | |
| 1445 } | |
| 1446 else if (*p == '+') | |
| 1447 { p++; | |
| 1448 t.value = TOK.TOKplusplus; | |
| 1449 } | |
| 1450 else | |
| 1451 t.value = TOK.TOKadd; | |
| 1452 return; | |
| 1453 | |
| 1454 case '<': | |
| 1455 p++; | |
| 1456 if (*p == '=') | |
| 1457 { p++; | |
| 1458 t.value = TOK.TOKle; // <= | |
| 1459 } | |
| 1460 else if (*p == '<') | |
| 1461 { p++; | |
| 1462 if (*p == '=') | |
| 1463 { p++; | |
| 1464 t.value = TOK.TOKshlass; // <<= | |
| 1465 } | |
| 1466 else | |
| 1467 t.value = TOK.TOKshl; // << | |
| 1468 } | |
| 1469 else if (*p == '>') | |
| 1470 { p++; | |
| 1471 if (*p == '=') | |
| 1472 { p++; | |
| 1473 t.value = TOK.TOKleg; // <>= | |
| 1474 } | |
| 1475 else | |
| 1476 t.value = TOK.TOKlg; // <> | |
| 1477 } | |
| 1478 else | |
| 1479 t.value = TOK.TOKlt; // < | |
| 1480 return; | |
| 1481 | |
| 1482 case '>': | |
| 1483 p++; | |
| 1484 if (*p == '=') | |
| 1485 { p++; | |
| 1486 t.value = TOK.TOKge; // >= | |
| 1487 } | |
| 1488 else if (*p == '>') | |
| 1489 { p++; | |
| 1490 if (*p == '=') | |
| 1491 { p++; | |
| 1492 t.value = TOK.TOKshrass; // >>= | |
| 1493 } | |
| 1494 else if (*p == '>') | |
| 1495 { p++; | |
| 1496 if (*p == '=') | |
| 1497 { p++; | |
| 1498 t.value = TOK.TOKushrass; // >>>= | |
| 1499 } | |
| 1500 else | |
| 1501 t.value = TOK.TOKushr; // >>> | |
| 1502 } | |
| 1503 else | |
| 1504 t.value = TOK.TOKshr; // >> | |
| 1505 } | |
| 1506 else | |
| 1507 t.value = TOK.TOKgt; // > | |
| 1508 return; | |
| 1509 | |
| 1510 case '!': | |
| 1511 p++; | |
| 1512 if (*p == '=') | |
| 1513 { p++; | |
| 1514 if (*p == '=' && global.params.Dversion == 1) | |
| 1515 { p++; | |
| 1516 t.value = TOK.TOKnotidentity; // !== | |
| 1517 } | |
| 1518 else | |
| 1519 t.value = TOK.TOKnotequal; // != | |
| 1520 } | |
| 1521 else if (*p == '<') | |
| 1522 { p++; | |
| 1523 if (*p == '>') | |
| 1524 { p++; | |
| 1525 if (*p == '=') | |
| 1526 { p++; | |
| 1527 t.value = TOK.TOKunord; // !<>= | |
| 1528 } | |
| 1529 else | |
| 1530 t.value = TOK.TOKue; // !<> | |
| 1531 } | |
| 1532 else if (*p == '=') | |
| 1533 { p++; | |
| 1534 t.value = TOK.TOKug; // !<= | |
| 1535 } | |
| 1536 else | |
| 1537 t.value = TOK.TOKuge; // !< | |
| 1538 } | |
| 1539 else if (*p == '>') | |
| 1540 { p++; | |
| 1541 if (*p == '=') | |
| 1542 { p++; | |
| 1543 t.value = TOK.TOKul; // !>= | |
| 1544 } | |
| 1545 else | |
| 1546 t.value = TOK.TOKule; // !> | |
| 1547 } | |
| 1548 else | |
| 1549 t.value = TOK.TOKnot; // ! | |
| 1550 return; | |
| 1551 | |
| 1552 case '=': | |
| 1553 p++; | |
| 1554 if (*p == '=') | |
| 1555 { p++; | |
| 1556 if (*p == '=' && global.params.Dversion == 1) | |
| 1557 { p++; | |
| 1558 t.value = TOK.TOKidentity; // === | |
| 1559 } | |
| 1560 else | |
| 1561 t.value = TOK.TOKequal; // == | |
| 1562 } | |
| 1563 else | |
| 1564 t.value = TOK.TOKassign; // = | |
| 1565 return; | |
| 1566 | |
| 1567 case '~': | |
| 1568 p++; | |
| 1569 if (*p == '=') | |
| 1570 { p++; | |
| 1571 t.value = TOK.TOKcatass; // ~= | |
| 1572 } | |
| 1573 else | |
| 1574 t.value = TOK.TOKtilde; // ~ | |
| 1575 return; | |
|
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|
1576 |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
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parents:
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diff
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|
1577 version(DMDV2) { |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
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parents:
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diff
changeset
|
1578 case '^': |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
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parents:
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diff
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|
1579 p++; |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
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parents:
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|
1580 if (*p == '^') |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
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parents:
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|
1581 { p++; |
| 135 | 1582 if (*p == '=') |
| 1583 { p++; | |
| 1584 t.value = TOKpowass; // ^^= | |
| 1585 } | |
| 1586 else | |
|
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1587 t.value = TOKpow; // ^^ |
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1588 } |
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1589 else if (*p == '=') |
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1590 { p++; |
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1591 t.value = TOKxorass; // ^= |
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1592 } |
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1593 else |
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1594 t.value = TOKxor; // ^ |
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1595 return; |
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1596 } |
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1597 |
| 0 | 1598 /* |
| 1599 #define SINGLE(c,tok) case c: p++; t.value = tok; return; | |
| 1600 | |
| 1601 SINGLE('(', TOKlparen) | |
| 1602 SINGLE(')', TOKrparen) | |
| 1603 SINGLE('[', TOKlbracket) | |
| 1604 SINGLE(']', TOKrbracket) | |
| 1605 SINGLE('{', TOKlcurly) | |
| 1606 SINGLE('}', TOKrcurly) | |
| 1607 SINGLE('?', TOKquestion) | |
| 1608 SINGLE(',', TOKcomma) | |
| 1609 SINGLE(';', TOKsemicolon) | |
| 1610 SINGLE(':', TOKcolon) | |
| 1611 SINGLE('$', TOKdollar) | |
| 1612 SINGLE('@', TOKat) | |
| 1613 | |
| 1614 #undef SINGLE | |
| 1615 | |
| 1616 #define DOUBLE(c1,tok1,c2,tok2) \ | |
| 1617 case c1: \ | |
| 1618 p++; \ | |
| 1619 if (*p == c2) \ | |
| 1620 { p++; \ | |
| 1621 t.value = tok2; \ | |
| 1622 } \ | |
| 1623 else \ | |
| 1624 t.value = tok1; \ | |
| 1625 return; | |
| 1626 | |
| 1627 DOUBLE('*', TOKmul, '=', TOKmulass) | |
| 1628 DOUBLE('%', TOKmod, '=', TOKmodass) | |
|
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1629 #if DMDV1 |
| 0 | 1630 DOUBLE('^', TOKxor, '=', TOKxorass) |
|
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1631 #endif |
| 0 | 1632 #undef DOUBLE |
| 1633 */ | |
| 1634 | |
| 1635 case '(': p++; t.value = TOK.TOKlparen; return; | |
| 1636 case ')': p++; t.value = TOK.TOKrparen; return; | |
| 1637 case '[': p++; t.value = TOK.TOKlbracket; return; | |
| 1638 case ']': p++; t.value = TOK.TOKrbracket; return; | |
| 1639 case '{': p++; t.value = TOK.TOKlcurly; return; | |
| 1640 case '}': p++; t.value = TOK.TOKrcurly; return; | |
| 1641 case '?': p++; t.value = TOK.TOKquestion; return; | |
| 1642 case ',': p++; t.value = TOK.TOKcomma; return; | |
| 1643 case ';': p++; t.value = TOK.TOKsemicolon; return; | |
| 1644 case ':': p++; t.value = TOK.TOKcolon; return; | |
| 1645 case '$': p++; t.value = TOK.TOKdollar; return; | |
| 1646 case '@': p++; t.value = TOK.TOKat; return; | |
| 1647 | |
| 1648 case '*': | |
| 1649 p++; | |
| 1650 if (*p == '=') { | |
| 1651 p++; | |
| 1652 t.value = TOK.TOKmulass; | |
| 1653 } else { | |
| 1654 t.value = TOK.TOKmul; | |
| 1655 } | |
| 1656 return; | |
| 1657 | |
| 1658 case '%': | |
| 1659 p++; | |
| 1660 if (*p == '=') { | |
| 1661 p++; | |
| 1662 t.value = TOK.TOKmodass; | |
| 1663 } else { | |
| 1664 t.value = TOK.TOKmod; | |
| 1665 } | |
| 1666 return; | |
|
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1667 version(DMDV1) { |
| 0 | 1668 case '^': |
| 1669 p++; | |
| 1670 if (*p == '=') { | |
| 1671 p++; | |
| 1672 t.value = TOK.TOKxorass; | |
| 1673 } else { | |
| 1674 t.value = TOK.TOKxor; | |
| 1675 } | |
| 1676 return; | |
|
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1677 } |
| 0 | 1678 case '#': |
| 1679 p++; | |
| 1680 pragma_(); | |
| 1681 continue; | |
| 1682 | |
| 1683 default: | |
| 135 | 1684 { uint c = *p; |
| 0 | 1685 |
| 1686 if (c & 0x80) | |
| 135 | 1687 { c = decodeUTF(); |
| 0 | 1688 |
| 1689 // Check for start of unicode identifier | |
| 135 | 1690 if (isUniAlpha(c)) |
| 0 | 1691 goto case_ident; |
| 1692 | |
| 135 | 1693 if (c == PS || c == LS) |
| 0 | 1694 { |
| 1695 loc.linnum++; | |
| 1696 p++; | |
| 1697 continue; | |
| 1698 } | |
| 1699 } | |
| 135 | 1700 if (c < 0x80 && isprint(c)) |
| 0 | 1701 error("unsupported char '%c'", c); |
| 1702 else | |
| 1703 error("unsupported char 0x%02x", c); | |
| 1704 p++; | |
| 1705 continue; | |
| 1706 } | |
| 1707 } | |
| 1708 } | |
| 1709 } | |
| 1710 | |
| 1711 Token* peek(Token* ct) | |
| 1712 { | |
| 1713 Token* t; | |
| 1714 | |
| 1715 if (ct.next) | |
| 1716 t = ct.next; | |
| 1717 else | |
| 1718 { | |
| 1719 t = new Token(); | |
| 1720 scan(t); | |
| 1721 t.next = null; | |
| 1722 ct.next = t; | |
| 1723 } | |
| 1724 return t; | |
| 1725 } | |
| 1726 | |
| 1727 Token* peekPastParen(Token* tk) | |
| 1728 { | |
| 1729 //printf("peekPastParen()\n"); | |
| 1730 int parens = 1; | |
| 1731 int curlynest = 0; | |
| 1732 while (1) | |
| 1733 { | |
| 1734 tk = peek(tk); | |
| 1735 //tk.print(); | |
| 1736 switch (tk.value) | |
| 1737 { | |
| 1738 case TOK.TOKlparen: | |
| 1739 parens++; | |
| 1740 continue; | |
| 1741 | |
| 1742 case TOK.TOKrparen: | |
| 1743 --parens; | |
| 1744 if (parens) | |
| 1745 continue; | |
| 1746 tk = peek(tk); | |
| 1747 break; | |
| 1748 | |
| 1749 case TOK.TOKlcurly: | |
| 1750 curlynest++; | |
| 1751 continue; | |
| 1752 | |
| 1753 case TOK.TOKrcurly: | |
| 1754 if (--curlynest >= 0) | |
| 1755 continue; | |
| 1756 break; | |
| 1757 | |
| 1758 case TOK.TOKsemicolon: | |
| 1759 if (curlynest) | |
| 1760 continue; | |
| 1761 break; | |
| 1762 | |
| 1763 case TOK.TOKeof: | |
| 1764 break; | |
| 1765 | |
| 1766 default: | |
| 1767 continue; | |
| 1768 } | |
| 1769 return tk; | |
| 1770 } | |
| 1771 } | |
| 1772 | |
| 1773 /******************************************* | |
| 1774 * Parse escape sequence. | |
| 1775 */ | |
| 1776 uint escapeSequence() | |
| 1777 { | |
| 1778 uint c = *p; | |
| 1779 | |
| 1780 version (TEXTUAL_ASSEMBLY_OUT) { | |
| 1781 return c; | |
| 1782 } | |
| 1783 int n; | |
| 1784 int ndigits; | |
| 1785 | |
| 1786 switch (c) | |
| 1787 { | |
| 1788 case '\'': | |
| 1789 case '"': | |
| 1790 case '?': | |
| 1791 case '\\': | |
| 1792 Lconsume: | |
| 1793 p++; | |
| 1794 break; | |
| 1795 | |
| 1796 case 'a': c = 7; goto Lconsume; | |
| 1797 case 'b': c = 8; goto Lconsume; | |
| 1798 case 'f': c = 12; goto Lconsume; | |
| 1799 case 'n': c = 10; goto Lconsume; | |
| 1800 case 'r': c = 13; goto Lconsume; | |
| 1801 case 't': c = 9; goto Lconsume; | |
| 1802 case 'v': c = 11; goto Lconsume; | |
| 1803 | |
| 1804 case 'u': | |
| 1805 ndigits = 4; | |
| 1806 goto Lhex; | |
| 1807 case 'U': | |
| 1808 ndigits = 8; | |
| 1809 goto Lhex; | |
| 1810 case 'x': | |
| 1811 ndigits = 2; | |
| 1812 Lhex: | |
| 1813 p++; | |
| 1814 c = *p; | |
| 1815 if (ishex(cast(ubyte)c)) | |
| 1816 { | |
| 1817 uint v; | |
| 1818 | |
| 1819 n = 0; | |
| 1820 v = 0; | |
| 1821 while (1) | |
| 1822 { | |
| 1823 if (isdigit(c)) | |
| 1824 c -= '0'; | |
| 1825 else if (islower(c)) | |
| 1826 c -= 'a' - 10; | |
| 1827 else | |
| 1828 c -= 'A' - 10; | |
| 1829 v = v * 16 + c; | |
| 1830 c = *++p; | |
| 1831 if (++n == ndigits) | |
| 1832 break; | |
| 1833 if (!ishex(cast(ubyte)c)) | |
| 1834 { error("escape hex sequence has %d hex digits instead of %d", n, ndigits); | |
| 1835 break; | |
| 1836 } | |
| 1837 } | |
| 1838 if (ndigits != 2 && !utf_isValidDchar(v)) | |
| 1839 { error("invalid UTF character \\U%08x", v); | |
| 1840 v = '?'; // recover with valid UTF character | |
| 1841 } | |
| 1842 c = v; | |
| 1843 } | |
| 1844 else | |
| 1845 error("undefined escape hex sequence \\%c\n",c); | |
| 1846 break; | |
| 1847 | |
| 1848 case '&': // named character entity | |
| 1849 for (ubyte* idstart = ++p; true; p++) | |
| 1850 { | |
| 1851 switch (*p) | |
| 1852 { | |
| 1853 case ';': | |
| 1854 c = HtmlNamedEntity(idstart, p - idstart); | |
| 1855 if (c == ~0) | |
| 1856 { | |
| 1857 error("unnamed character entity &%s;", idstart[0..(p - idstart)]); | |
| 1858 c = ' '; | |
| 1859 } | |
| 1860 p++; | |
| 1861 break; | |
| 1862 | |
| 1863 default: | |
| 1864 if (isalpha(*p) || | |
| 1865 (p != idstart + 1 && isdigit(*p))) | |
| 1866 continue; | |
| 1867 error("unterminated named entity"); | |
| 1868 break; | |
| 1869 } | |
| 1870 break; | |
| 1871 } | |
| 1872 break; | |
| 1873 | |
| 1874 case 0: | |
| 1875 case 0x1A: // end of file | |
| 1876 c = '\\'; | |
| 1877 break; | |
| 1878 | |
| 1879 default: | |
| 1880 if (isoctal(cast(ubyte)c)) | |
| 1881 { | |
| 1882 uint v; | |
| 1883 | |
| 1884 n = 0; | |
| 1885 v = 0; | |
| 1886 do | |
| 1887 { | |
| 1888 v = v * 8 + (c - '0'); | |
| 1889 c = *++p; | |
| 1890 } while (++n < 3 && isoctal(cast(ubyte)c)); | |
| 1891 c = v; | |
| 1892 if (c > 0xFF) | |
| 1893 error("0%03o is larger than a byte", c); | |
| 1894 } | |
| 1895 else | |
| 1896 error("undefined escape sequence \\%c\n",c); | |
| 1897 break; | |
| 1898 } | |
| 1899 return c; | |
| 1900 } | |
| 1901 | |
| 1902 TOK wysiwygStringConstant(Token* t, int tc) | |
| 1903 { | |
|
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1904 uint c; |
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1905 Loc start = loc; |
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1906 |
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1907 p++; |
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1908 stringbuffer.reset(); |
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1909 while (true) |
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1910 { |
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1911 c = *p++; |
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1912 switch (c) |
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1913 { |
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1914 case '\n': |
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1915 loc.linnum++; |
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1916 break; |
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1917 |
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1918 case '\r': |
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1919 if (*p == '\n') |
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1920 continue; // ignore |
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1921 c = '\n'; // treat EndOfLine as \n character |
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1922 loc.linnum++; |
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1923 break; |
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1924 |
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1925 case 0: |
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1926 case 0x1A: |
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1927 error("unterminated string constant starting at %s", start.toChars()); |
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1928 t.ustring = "".ptr; |
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1929 t.len = 0; |
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1930 t.postfix = 0; |
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1931 return TOKstring; |
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1932 |
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1933 case '"': |
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1934 case '`': |
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1935 if (c == tc) |
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1936 { |
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1937 t.len = stringbuffer.offset; |
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1938 stringbuffer.writeByte(0); |
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1939 char* tmp = cast(char*)GC.malloc(stringbuffer.offset); |
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1940 memcpy(tmp, stringbuffer.data, stringbuffer.offset); |
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1941 t.ustring = tmp; |
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1942 stringPostfix(t); |
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1943 return TOKstring; |
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1944 } |
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1945 break; |
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1946 |
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1947 default: |
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1948 if (c & 0x80) |
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1949 { p--; |
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1950 uint u = decodeUTF(); |
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1951 p++; |
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1952 if (u == PS || u == LS) |
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1953 loc.linnum++; |
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1954 stringbuffer.writeUTF8(u); |
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1955 continue; |
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1956 } |
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|
1957 break; |
|
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|
1958 } |
|
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|
1959 stringbuffer.writeByte(c); |
|
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|
1960 } |
|
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|
1961 |
| 0 | 1962 assert(false); |
| 1963 } | |
| 1964 | |
| 51 | 1965 /************************************** |
| 1966 * Lex hex strings: | |
| 1967 * x"0A ae 34FE BD" | |
| 1968 */ | |
| 0 | 1969 TOK hexStringConstant(Token* t) |
| 1970 { | |
| 51 | 1971 uint c; |
| 1972 Loc start = loc; | |
| 1973 uint n = 0; | |
| 1974 uint v; | |
| 1975 | |
| 1976 p++; | |
| 1977 stringbuffer.reset(); | |
| 1978 while (1) | |
| 1979 { | |
| 1980 c = *p++; | |
| 1981 switch (c) | |
| 1982 { | |
| 1983 case ' ': | |
| 1984 case '\t': | |
| 1985 case '\v': | |
| 1986 case '\f': | |
| 1987 continue; // skip white space | |
| 1988 | |
| 1989 case '\r': | |
| 1990 if (*p == '\n') | |
| 1991 continue; // ignore | |
| 1992 // Treat isolated '\r' as if it were a '\n' | |
| 1993 case '\n': | |
| 1994 loc.linnum++; | |
| 1995 continue; | |
| 1996 | |
| 1997 case 0: | |
| 1998 case 0x1A: | |
| 1999 error("unterminated string constant starting at %s", start.toChars()); | |
| 2000 t.ustring = "".ptr; | |
| 2001 t.len = 0; | |
| 2002 t.postfix = 0; | |
| 2003 return TOKstring; | |
| 2004 | |
| 2005 case '"': | |
| 2006 if (n & 1) | |
| 2007 { | |
| 2008 error("odd number (%d) of hex characters in hex string", n); | |
| 2009 stringbuffer.writeByte(v); | |
| 2010 } | |
| 2011 t.len = stringbuffer.offset; | |
| 2012 stringbuffer.writeByte(0); | |
| 2013 void* mem = malloc(stringbuffer.offset); | |
| 2014 memcpy(mem, stringbuffer.data, stringbuffer.offset); | |
| 2015 t.ustring = cast(const(char)*)mem; | |
| 2016 stringPostfix(t); | |
| 2017 return TOKstring; | |
| 2018 | |
| 2019 default: | |
| 2020 if (c >= '0' && c <= '9') | |
| 2021 c -= '0'; | |
| 2022 else if (c >= 'a' && c <= 'f') | |
| 2023 c -= 'a' - 10; | |
| 2024 else if (c >= 'A' && c <= 'F') | |
| 2025 c -= 'A' - 10; | |
| 2026 else if (c & 0x80) | |
| 2027 { p--; | |
| 2028 uint u = decodeUTF(); | |
| 2029 p++; | |
| 2030 if (u == PS || u == LS) | |
| 2031 loc.linnum++; | |
| 2032 else | |
| 135 | 2033 error("non-hex character \\u%04x", u); |
| 51 | 2034 } |
| 2035 else | |
| 2036 error("non-hex character '%c'", c); | |
| 2037 if (n & 1) | |
| 2038 { v = (v << 4) | c; | |
| 2039 stringbuffer.writeByte(v); | |
| 2040 } | |
| 2041 else | |
| 2042 v = c; | |
| 2043 n++; | |
| 2044 break; | |
| 2045 } | |
| 2046 } | |
| 0 | 2047 } |
| 2048 | |
| 2049 version (DMDV2) { | |
| 51 | 2050 /************************************** |
| 2051 * Lex delimited strings: | |
| 2052 * q"(foo(xxx))" // "foo(xxx)" | |
| 2053 * q"[foo(]" // "foo(" | |
| 2054 * q"/foo]/" // "foo]" | |
| 2055 * q"HERE | |
| 2056 * foo | |
| 2057 * HERE" // "foo\n" | |
| 2058 * Input: | |
| 2059 * p is on the " | |
| 2060 */ | |
| 0 | 2061 TOK delimitedStringConstant(Token* t) |
| 2062 { | |
| 51 | 2063 uint c; |
| 2064 Loc start = loc; | |
| 2065 uint delimleft = 0; | |
| 2066 uint delimright = 0; | |
| 2067 uint nest = 1; | |
| 2068 uint nestcount; | |
| 2069 Identifier hereid = null; | |
| 2070 uint blankrol = 0; | |
| 2071 uint startline = 0; | |
| 2072 | |
| 2073 p++; | |
| 2074 stringbuffer.reset(); | |
| 2075 while (1) | |
| 2076 { | |
| 2077 c = *p++; | |
| 2078 //printf("c = '%c'\n", c); | |
| 2079 switch (c) | |
| 2080 { | |
| 2081 case '\n': | |
| 2082 Lnextline: | |
| 2083 loc.linnum++; | |
| 2084 startline = 1; | |
| 2085 if (blankrol) | |
| 2086 { blankrol = 0; | |
| 2087 continue; | |
| 2088 } | |
| 2089 if (hereid) | |
| 2090 { | |
| 2091 stringbuffer.writeUTF8(c); | |
| 2092 continue; | |
| 2093 } | |
| 2094 break; | |
| 2095 | |
| 2096 case '\r': | |
| 2097 if (*p == '\n') | |
| 2098 continue; // ignore | |
| 2099 c = '\n'; // treat EndOfLine as \n character | |
| 2100 goto Lnextline; | |
| 2101 | |
| 2102 case 0: | |
| 2103 case 0x1A: | |
| 2104 goto Lerror; | |
| 2105 | |
| 2106 default: | |
| 2107 if (c & 0x80) | |
| 2108 { p--; | |
| 2109 c = decodeUTF(); | |
| 2110 p++; | |
| 2111 if (c == PS || c == LS) | |
| 2112 goto Lnextline; | |
| 2113 } | |
| 2114 break; | |
| 2115 } | |
| 2116 if (delimleft == 0) | |
| 2117 { | |
| 2118 delimleft = c; | |
| 2119 nest = 1; | |
| 2120 nestcount = 1; | |
| 2121 if (c == '(') | |
| 2122 delimright = ')'; | |
| 2123 else if (c == '{') | |
| 2124 delimright = '}'; | |
| 2125 else if (c == '[') | |
| 2126 delimright = ']'; | |
| 2127 else if (c == '<') | |
| 2128 delimright = '>'; | |
| 2129 else if (isalpha(c) || c == '_' || (c >= 0x80 && isUniAlpha(c))) | |
| 2130 { | |
| 2131 // Start of identifier; must be a heredoc | |
| 2132 Token t2; | |
| 2133 p--; | |
| 2134 scan(&t2); // read in heredoc identifier | |
| 2135 if (t2.value != TOKidentifier) | |
| 2136 { | |
| 2137 error("identifier expected for heredoc, not %s", t2.toChars()); | |
| 2138 delimright = c; | |
| 2139 } | |
| 2140 else | |
| 2141 { | |
| 2142 hereid = t2.ident; | |
| 2143 //printf("hereid = '%s'\n", hereid.toChars()); | |
| 2144 blankrol = 1; | |
| 2145 } | |
| 2146 nest = 0; | |
| 2147 } | |
| 2148 else | |
| 2149 { | |
| 2150 delimright = c; | |
| 2151 nest = 0; | |
| 2152 if (isspace(c)) | |
| 2153 error("delimiter cannot be whitespace"); | |
| 2154 } | |
| 2155 } | |
| 2156 else | |
| 2157 { | |
| 2158 if (blankrol) | |
| 2159 { | |
| 2160 error("heredoc rest of line should be blank"); | |
| 2161 blankrol = 0; | |
| 2162 continue; | |
| 2163 } | |
| 2164 if (nest == 1) | |
| 2165 { | |
| 2166 if (c == delimleft) | |
| 2167 nestcount++; | |
| 2168 else if (c == delimright) | |
| 2169 { nestcount--; | |
| 2170 if (nestcount == 0) | |
| 2171 goto Ldone; | |
| 2172 } | |
| 2173 } | |
| 2174 else if (c == delimright) | |
| 2175 goto Ldone; | |
| 2176 if (startline && isalpha(c) && hereid) | |
| 2177 { | |
| 2178 Token t2; | |
| 2179 ubyte* psave = p; | |
| 2180 p--; | |
| 2181 scan(&t2); // read in possible heredoc identifier | |
| 2182 //printf("endid = '%s'\n", t2.ident.toChars()); | |
| 2183 if (t2.value == TOKidentifier && t2.ident.equals(hereid)) | |
| 2184 { | |
| 2185 /* should check that rest of line is blank | |
| 2186 */ | |
| 2187 goto Ldone; | |
| 2188 } | |
| 2189 p = psave; | |
| 2190 } | |
| 2191 stringbuffer.writeUTF8(c); | |
| 2192 startline = 0; | |
| 2193 } | |
| 2194 } | |
| 2195 | |
| 2196 Ldone: | |
| 2197 if (*p == '"') | |
| 2198 p++; | |
| 2199 else | |
| 2200 error("delimited string must end in %c\"", delimright); | |
| 2201 t.len = stringbuffer.offset; | |
| 2202 stringbuffer.writeByte(0); | |
| 2203 void* mem = malloc(stringbuffer.offset); | |
| 2204 memcpy(mem, stringbuffer.data, stringbuffer.offset); | |
| 2205 t.ustring = cast(const(char)*)mem; | |
| 2206 stringPostfix(t); | |
| 2207 return TOKstring; | |
| 2208 | |
| 2209 Lerror: | |
| 2210 error("unterminated string constant starting at %s", start.toChars()); | |
| 2211 t.ustring = "".ptr; | |
| 2212 t.len = 0; | |
| 2213 t.postfix = 0; | |
| 2214 return TOKstring; | |
| 0 | 2215 } |
| 2216 | |
|
8
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2217 /************************************** |
|
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|
2218 * Lex delimited strings: |
|
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|
2219 * q{ foo(xxx) } // " foo(xxx) " |
|
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2220 * q{foo(} // "foo(" |
|
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2221 * q{{foo}"}"} // "{foo}"}"" |
|
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|
2222 * Input: |
|
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|
2223 * p is on the q |
|
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|
2224 */ |
| 0 | 2225 TOK tokenStringConstant(Token* t) |
| 2226 { | |
|
8
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|
2227 uint nest = 1; |
|
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|
2228 Loc start = loc; |
|
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|
2229 ubyte* pstart = ++p; |
|
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|
2230 |
|
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|
2231 while (true) |
|
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|
2232 { |
|
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|
2233 Token tok; |
|
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|
2234 |
|
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|
2235 scan(&tok); |
|
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|
2236 switch (tok.value) |
|
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|
2237 { |
|
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|
2238 case TOKlcurly: |
|
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|
2239 nest++; |
|
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|
2240 continue; |
|
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|
2241 |
|
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|
2242 case TOKrcurly: |
|
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|
2243 if (--nest == 0) |
|
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|
2244 goto Ldone; |
|
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|
2245 continue; |
|
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|
2246 |
|
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|
2247 case TOKeof: |
|
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|
2248 goto Lerror; |
|
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|
2249 |
|
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|
2250 default: |
|
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|
2251 continue; |
|
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|
2252 } |
|
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|
2253 } |
|
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|
2254 |
|
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|
2255 Ldone: |
|
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|
2256 t.len = p - 1 - pstart; |
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|
2257 char* tmp = cast(char*)GC.malloc(t.len + 1); |
|
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|
2258 memcpy(tmp, pstart, t.len); |
|
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|
2259 tmp[t.len] = 0; |
|
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|
2260 t.ustring = tmp; |
|
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|
2261 stringPostfix(t); |
|
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|
2262 return TOKstring; |
|
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|
2263 |
|
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|
2264 Lerror: |
|
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|
2265 error("unterminated token string constant starting at %s", start.toChars()); |
|
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|
2266 t.ustring = "".ptr; |
|
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|
2267 t.len = 0; |
|
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|
2268 t.postfix = 0; |
|
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|
2269 return TOKstring; |
| 0 | 2270 } |
| 2271 } | |
| 2272 TOK escapeStringConstant(Token* t, int wide) | |
| 2273 { | |
| 2274 uint c; | |
| 2275 Loc start = loc; | |
| 2276 | |
| 2277 p++; | |
| 2278 stringbuffer.reset(); | |
| 2279 while (true) | |
| 2280 { | |
| 2281 c = *p++; | |
| 2282 switch (c) | |
| 2283 { | |
| 2284 version (TEXTUAL_ASSEMBLY_OUT) { | |
| 2285 } else { | |
| 2286 case '\\': | |
| 2287 switch (*p) | |
| 2288 { | |
| 2289 case 'u': | |
| 2290 case 'U': | |
| 2291 case '&': | |
| 2292 c = escapeSequence(); | |
| 2293 stringbuffer.writeUTF8(c); | |
| 2294 continue; | |
| 2295 | |
| 2296 default: | |
| 2297 c = escapeSequence(); | |
| 2298 break; | |
| 2299 } | |
| 2300 break; | |
| 2301 } | |
| 2302 case '\n': | |
| 2303 loc.linnum++; | |
| 2304 break; | |
| 2305 | |
| 2306 case '\r': | |
| 2307 if (*p == '\n') | |
| 2308 continue; // ignore | |
| 2309 c = '\n'; // treat EndOfLine as \n character | |
| 2310 loc.linnum++; | |
| 2311 break; | |
| 2312 | |
| 2313 case '"': | |
| 2314 t.len = stringbuffer.offset; | |
| 2315 stringbuffer.writeByte(0); | |
| 2 | 2316 char* tmp = cast(char*)GC.malloc(stringbuffer.offset); |
| 0 | 2317 memcpy(tmp, stringbuffer.data, stringbuffer.offset); |
| 2318 t.ustring = tmp; | |
| 2319 stringPostfix(t); | |
| 2320 return TOK.TOKstring; | |
| 2321 | |
| 2322 case 0: | |
| 2323 case 0x1A: | |
| 2324 p--; | |
| 2325 error("unterminated string constant starting at %s", start.toChars()); | |
| 2326 t.ustring = "".ptr; | |
| 2327 t.len = 0; | |
| 2328 t.postfix = 0; | |
| 2329 return TOK.TOKstring; | |
| 2330 | |
| 2331 default: | |
| 2332 if (c & 0x80) | |
| 2333 { | |
| 2334 p--; | |
| 2335 c = decodeUTF(); | |
| 2336 if (c == LS || c == PS) | |
| 2337 { c = '\n'; | |
| 2338 loc.linnum++; | |
| 2339 } | |
| 2340 p++; | |
| 2341 stringbuffer.writeUTF8(c); | |
| 2342 continue; | |
| 2343 } | |
| 2344 break; | |
| 2345 } | |
| 2346 stringbuffer.writeByte(c); | |
| 2347 } | |
| 2348 | |
| 2349 assert(false); | |
| 2350 } | |
| 2351 | |
| 2352 TOK charConstant(Token* t, int wide) | |
| 2353 { | |
| 2354 uint c; | |
| 2355 TOK tk = TOKcharv; | |
| 2356 | |
| 2357 //printf("Lexer.charConstant\n"); | |
| 2358 p++; | |
| 2359 c = *p++; | |
| 2360 switch (c) | |
| 2361 { | |
| 2362 version (TEXTUAL_ASSEMBLY_OUT) { | |
| 2363 } else { | |
| 2364 case '\\': | |
| 2365 switch (*p) | |
| 2366 { | |
| 2367 case 'u': | |
| 2368 t.uns64value = escapeSequence(); | |
| 2369 tk = TOKwcharv; | |
| 2370 break; | |
| 2371 | |
| 2372 case 'U': | |
| 2373 case '&': | |
| 2374 t.uns64value = escapeSequence(); | |
| 2375 tk = TOKdcharv; | |
| 2376 break; | |
| 2377 | |
| 2378 default: | |
| 2379 t.uns64value = escapeSequence(); | |
| 2380 break; | |
| 2381 } | |
| 2382 break; | |
| 2383 } | |
| 2384 case '\n': | |
| 2385 L1: | |
| 2386 loc.linnum++; | |
| 2387 case '\r': | |
| 2388 case 0: | |
| 2389 case 0x1A: | |
| 2390 case '\'': | |
| 2391 error("unterminated character constant"); | |
| 2392 return tk; | |
| 2393 | |
| 2394 default: | |
| 2395 if (c & 0x80) | |
| 2396 { | |
| 2397 p--; | |
| 2398 c = decodeUTF(); | |
| 2399 p++; | |
| 2400 if (c == LS || c == PS) | |
| 2401 goto L1; | |
| 2402 if (c < 0xD800 || (c >= 0xE000 && c < 0xFFFE)) | |
| 2403 tk = TOKwcharv; | |
| 2404 else | |
| 2405 tk = TOKdcharv; | |
| 2406 } | |
| 2407 t.uns64value = c; | |
| 2408 break; | |
| 2409 } | |
| 2410 | |
| 2411 if (*p != '\'') | |
| 2412 { | |
| 2413 error("unterminated character constant"); | |
| 2414 return tk; | |
| 2415 } | |
| 2416 p++; | |
| 2417 return tk; | |
| 2418 } | |
| 2419 | |
| 2420 /*************************************** | |
| 2421 * Get postfix of string literal. | |
| 2422 */ | |
| 2423 void stringPostfix(Token* t) | |
| 2424 { | |
| 2425 switch (*p) | |
| 2426 { | |
| 2427 case 'c': | |
| 2428 case 'w': | |
| 2429 case 'd': | |
| 2430 t.postfix = *p; | |
| 2431 p++; | |
| 2432 break; | |
| 2433 | |
| 2434 default: | |
| 2435 t.postfix = 0; | |
| 2436 break; | |
| 2437 } | |
| 2438 } | |
| 2439 | |
| 2440 uint wchar_(uint u) | |
| 2441 { | |
| 2442 assert(false); | |
| 2443 } | |
| 2444 | |
| 2445 /************************************** | |
| 2446 * Read in a number. | |
| 2447 * If it's an integer, store it in tok.TKutok.Vlong. | |
| 2448 * integers can be decimal, octal or hex | |
| 2449 * Handle the suffixes U, UL, LU, L, etc. | |
| 2450 * If it's double, store it in tok.TKutok.Vdouble. | |
| 2451 * Returns: | |
| 2452 * TKnum | |
| 2453 * TKdouble,... | |
| 2454 */ | |
| 2455 | |
| 2456 TOK number(Token* t) | |
| 2457 { | |
| 2458 // We use a state machine to collect numbers | |
| 2459 enum STATE { STATE_initial, STATE_0, STATE_decimal, STATE_octal, STATE_octale, | |
| 2460 STATE_hex, STATE_binary, STATE_hex0, STATE_binary0, | |
| 2461 STATE_hexh, STATE_error }; | |
| 2462 STATE state; | |
| 2463 | |
| 2464 enum FLAGS | |
| 2465 { | |
| 2466 FLAGS_undefined = 0, | |
| 2467 FLAGS_decimal = 1, // decimal | |
| 2468 FLAGS_unsigned = 2, // u or U suffix | |
| 2469 FLAGS_long = 4, // l or L suffix | |
| 2470 }; | |
| 2471 | |
| 2472 FLAGS flags = FLAGS.FLAGS_decimal; | |
| 2473 | |
| 2474 int i; | |
| 2475 int base; | |
| 2476 uint c; | |
| 2477 ubyte *start; | |
| 2478 TOK result; | |
| 2479 | |
| 2480 //printf("Lexer.number()\n"); | |
| 2481 state = STATE.STATE_initial; | |
| 2482 base = 0; | |
| 2483 stringbuffer.reset(); | |
| 2484 start = p; | |
| 2485 while (1) | |
| 2486 { | |
| 2487 c = *p; | |
| 2488 switch (state) | |
| 2489 { | |
| 2490 case STATE.STATE_initial: // opening state | |
| 2491 if (c == '0') | |
| 2492 state = STATE.STATE_0; | |
| 2493 else | |
| 2494 state = STATE.STATE_decimal; | |
| 2495 break; | |
| 2496 | |
| 2497 case STATE.STATE_0: | |
| 2498 flags = (flags & ~FLAGS.FLAGS_decimal); | |
| 2499 switch (c) | |
| 2500 { | |
| 2501 version (ZEROH) { | |
| 2502 case 'H': // 0h | |
| 2503 case 'h': | |
| 2504 goto hexh; | |
| 2505 } | |
| 2506 case 'X': | |
| 2507 case 'x': | |
| 2508 state = STATE.STATE_hex0; | |
| 2509 break; | |
| 2510 | |
| 2511 case '.': | |
| 2512 if (p[1] == '.') // .. is a separate token | |
| 2513 goto done; | |
| 2514 case 'i': | |
| 2515 case 'f': | |
| 2516 case 'F': | |
| 2517 goto real_; | |
| 2518 version (ZEROH) { | |
| 2519 case 'E': | |
| 2520 case 'e': | |
| 2521 goto case_hex; | |
| 2522 } | |
| 2523 case 'B': | |
| 2524 case 'b': | |
| 2525 state = STATE.STATE_binary0; | |
| 2526 break; | |
| 2527 | |
| 2528 case '0': case '1': case '2': case '3': | |
| 2529 case '4': case '5': case '6': case '7': | |
| 2530 state = STATE.STATE_octal; | |
| 2531 break; | |
| 2532 | |
| 2533 version (ZEROH) { | |
| 2534 case '8': case '9': case 'A': | |
| 2535 case 'C': case 'D': case 'F': | |
| 2536 case 'a': case 'c': case 'd': case 'f': | |
| 2537 case_hex: | |
| 2538 state = STATE.STATE_hexh; | |
| 2539 break; | |
| 2540 } | |
| 2541 case '_': | |
| 2542 state = STATE.STATE_octal; | |
| 2543 p++; | |
| 2544 continue; | |
| 2545 | |
| 2546 case 'L': | |
| 2547 if (p[1] == 'i') | |
| 2548 goto real_; | |
| 2549 goto done; | |
| 2550 | |
| 2551 default: | |
| 2552 goto done; | |
| 2553 } | |
| 2554 break; | |
| 2555 | |
| 2556 case STATE.STATE_decimal: // reading decimal number | |
| 2557 if (!isdigit(c)) | |
| 2558 { | |
| 2559 version (ZEROH) { | |
| 2560 if (ishex(c) | |
| 2561 || c == 'H' || c == 'h' | |
| 2562 ) | |
| 2563 goto hexh; | |
| 2564 } | |
| 2565 if (c == '_') // ignore embedded _ | |
| 2566 { p++; | |
| 2567 continue; | |
| 2568 } | |
| 2569 if (c == '.' && p[1] != '.') | |
| 2570 goto real_; | |
| 2571 else if (c == 'i' || c == 'f' || c == 'F' || | |
| 2572 c == 'e' || c == 'E') | |
| 2573 { | |
| 2574 real_: // It's a real number. Back up and rescan as a real | |
| 2575 p = start; | |
| 2576 return inreal(t); | |
| 2577 } | |
| 2578 else if (c == 'L' && p[1] == 'i') | |
| 2579 goto real_; | |
| 2580 goto done; | |
| 2581 } | |
| 2582 break; | |
| 2583 | |
| 2584 case STATE.STATE_hex0: // reading hex number | |
| 2585 case STATE.STATE_hex: | |
| 2586 if (! ishex(cast(ubyte)c)) | |
| 2587 { | |
| 2588 if (c == '_') // ignore embedded _ | |
| 2589 { p++; | |
| 2590 continue; | |
| 2591 } | |
| 2592 if (c == '.' && p[1] != '.') | |
| 2593 goto real_; | |
| 2594 if (c == 'P' || c == 'p' || c == 'i') | |
| 2595 goto real_; | |
| 2596 if (state == STATE.STATE_hex0) | |
| 2597 error("Hex digit expected, not '%c'", c); | |
| 2598 goto done; | |
| 2599 } | |
| 2600 state = STATE.STATE_hex; | |
| 2601 break; | |
| 2602 | |
| 2603 version (ZEROH) { | |
| 2604 hexh: | |
| 2605 state = STATE.STATE_hexh; | |
| 2606 case STATE.STATE_hexh: // parse numbers like 0FFh | |
| 2607 if (!ishex(c)) | |
| 2608 { | |
| 2609 if (c == 'H' || c == 'h') | |
| 2610 { | |
| 2611 p++; | |
| 2612 base = 16; | |
| 2613 goto done; | |
| 2614 } | |
| 2615 else | |
| 2616 { | |
| 2617 // Check for something like 1E3 or 0E24 | |
| 2618 if (memchr(cast(char*)stringbuffer.data, 'E', stringbuffer.offset) || | |
| 2619 memchr(cast(char*)stringbuffer.data, 'e', stringbuffer.offset)) | |
| 2620 goto real_; | |
| 2621 error("Hex digit expected, not '%c'", c); | |
| 2622 goto done; | |
| 2623 } | |
| 2624 } | |
| 2625 break; | |
| 2626 } | |
| 2627 | |
| 2628 case STATE.STATE_octal: // reading octal number | |
| 2629 case STATE.STATE_octale: // reading octal number with non-octal digits | |
| 2630 if (!isoctal(cast(ubyte)c)) | |
| 2631 { | |
| 2632 version (ZEROH) { | |
| 2633 if (ishex(c) | |
| 2634 || c == 'H' || c == 'h' | |
| 2635 ) | |
| 2636 goto hexh; | |
| 2637 } | |
| 2638 if (c == '_') // ignore embedded _ | |
| 2639 { p++; | |
| 2640 continue; | |
| 2641 } | |
| 2642 if (c == '.' && p[1] != '.') | |
| 2643 goto real_; | |
| 2644 if (c == 'i') | |
| 2645 goto real_; | |
| 2646 if (isdigit(c)) | |
| 2647 { | |
| 2648 state = STATE.STATE_octale; | |
| 2649 } | |
| 2650 else | |
| 2651 goto done; | |
| 2652 } | |
| 2653 break; | |
| 2654 | |
| 2655 case STATE.STATE_binary0: // starting binary number | |
| 2656 case STATE.STATE_binary: // reading binary number | |
| 2657 if (c != '0' && c != '1') | |
| 2658 { | |
| 2659 version (ZEROH) { | |
| 2660 if (ishex(c) | |
| 2661 || c == 'H' || c == 'h' | |
| 2662 ) | |
| 2663 goto hexh; | |
| 2664 } | |
| 2665 if (c == '_') // ignore embedded _ | |
| 2666 { p++; | |
| 2667 continue; | |
| 2668 } | |
| 2669 if (state == STATE.STATE_binary0) | |
| 2670 { error("binary digit expected"); | |
| 2671 state = STATE.STATE_error; | |
| 2672 break; | |
| 2673 } | |
| 2674 else | |
| 2675 goto done; | |
| 2676 } | |
| 2677 state = STATE.STATE_binary; | |
| 2678 break; | |
| 2679 | |
| 2680 case STATE.STATE_error: // for error recovery | |
| 2681 if (!isdigit(c)) // scan until non-digit | |
| 2682 goto done; | |
| 2683 break; | |
| 2684 | |
| 2685 default: | |
| 2686 assert(0); | |
| 2687 } | |
| 2688 stringbuffer.writeByte(c); | |
| 2689 p++; | |
| 2690 } | |
| 2691 done: | |
| 2692 stringbuffer.writeByte(0); // terminate string | |
| 2693 if (state == STATE.STATE_octale) | |
| 2694 error("Octal digit expected"); | |
| 2695 | |
| 2696 ulong n; // unsigned >=64 bit integer type | |
| 2697 | |
| 2698 if (stringbuffer.offset == 2 && (state == STATE.STATE_decimal || state == STATE.STATE_0)) | |
| 2699 n = stringbuffer.data[0] - '0'; | |
| 2700 else | |
| 2701 { | |
| 2702 // Convert string to integer | |
| 2703 version (__DMC__) { | |
| 2704 errno = 0; | |
| 2705 n = strtoull(cast(char*)stringbuffer.data,null,base); | |
| 2706 if (errno == ERANGE) | |
| 2707 error("integer overflow"); | |
| 2708 } else { | |
| 2709 // Not everybody implements strtoull() | |
| 2710 char* p = cast(char*)stringbuffer.data; | |
| 2711 int r = 10, d; | |
| 2712 | |
| 2713 if (*p == '0') | |
| 2714 { | |
| 2715 if (p[1] == 'x' || p[1] == 'X') | |
| 2716 p += 2, r = 16; | |
| 2717 else if (p[1] == 'b' || p[1] == 'B') | |
| 2718 p += 2, r = 2; | |
| 2719 else if (isdigit(p[1])) | |
| 2720 p += 1, r = 8; | |
| 2721 } | |
| 2722 | |
| 2723 n = 0; | |
| 2724 while (1) | |
| 2725 { | |
| 2726 if (*p >= '0' && *p <= '9') | |
| 2727 d = *p - '0'; | |
| 2728 else if (*p >= 'a' && *p <= 'z') | |
| 2729 d = *p - 'a' + 10; | |
| 2730 else if (*p >= 'A' && *p <= 'Z') | |
| 2731 d = *p - 'A' + 10; | |
| 2732 else | |
| 2733 break; | |
| 2734 if (d >= r) | |
| 2735 break; | |
| 2736 ulong n2 = n * r; | |
| 2737 //printf("n2 / r = %llx, n = %llx\n", n2/r, n); | |
| 2738 if (n2 / r != n || n2 + d < n) | |
| 2739 { | |
| 2740 error ("integer overflow"); | |
| 2741 break; | |
| 2742 } | |
| 2743 | |
| 2744 n = n2 + d; | |
| 2745 p++; | |
| 2746 } | |
| 2747 } | |
| 2748 if (n.sizeof > 8 && | |
| 2749 n > 0xFFFFFFFFFFFFFFFF) // if n needs more than 64 bits | |
| 2750 error("integer overflow"); | |
| 2751 } | |
| 2752 | |
| 2753 // Parse trailing 'u', 'U', 'l' or 'L' in any combination | |
| 2754 while (1) | |
| 2755 { FLAGS f; | |
| 2756 | |
| 2757 switch (*p) | |
| 2758 { case 'U': | |
| 2759 case 'u': | |
| 2760 f = FLAGS.FLAGS_unsigned; | |
| 2761 goto L1; | |
| 2762 | |
| 2763 case 'l': | |
| 2764 if (1 || !global.params.useDeprecated) | |
| 2765 error("'l' suffix is deprecated, use 'L' instead"); | |
| 2766 case 'L': | |
| 2767 f = FLAGS.FLAGS_long; | |
| 2768 L1: | |
| 2769 p++; | |
| 2770 if (flags & f) | |
| 2771 error("unrecognized token"); | |
| 2772 flags = (flags | f); | |
| 2773 continue; | |
| 2774 default: | |
| 2775 break; | |
| 2776 } | |
| 2777 break; | |
| 2778 } | |
| 2779 | |
| 2780 switch (flags) | |
| 2781 { | |
| 2782 case FLAGS.FLAGS_undefined: | |
| 2783 /* Octal or Hexadecimal constant. | |
| 2784 * First that fits: int, uint, long, ulong | |
| 2785 */ | |
| 2786 if (n & 0x8000000000000000) | |
| 2787 result = TOK.TOKuns64v; | |
| 2788 else if (n & 0xFFFFFFFF00000000) | |
| 2789 result = TOK.TOKint64v; | |
| 2790 else if (n & 0x80000000) | |
| 2791 result = TOK.TOKuns32v; | |
| 2792 else | |
| 2793 result = TOK.TOKint32v; | |
| 2794 break; | |
| 2795 | |
| 2796 case FLAGS.FLAGS_decimal: | |
| 2797 /* First that fits: int, long, long long | |
| 2798 */ | |
| 2799 if (n & 0x8000000000000000) | |
| 2800 { error("signed integer overflow"); | |
| 2801 result = TOK.TOKuns64v; | |
| 2802 } | |
| 2803 else if (n & 0xFFFFFFFF80000000) | |
| 2804 result = TOK.TOKint64v; | |
| 2805 else | |
| 2806 result = TOK.TOKint32v; | |
| 2807 break; | |
| 2808 | |
| 2809 case FLAGS.FLAGS_unsigned: | |
| 2810 case FLAGS.FLAGS_decimal | FLAGS.FLAGS_unsigned: | |
| 2811 /* First that fits: uint, ulong | |
| 2812 */ | |
| 2813 if (n & 0xFFFFFFFF00000000) | |
| 2814 result = TOK.TOKuns64v; | |
| 2815 else | |
| 2816 result = TOK.TOKuns32v; | |
| 2817 break; | |
| 2818 | |
| 2819 case FLAGS.FLAGS_decimal | FLAGS.FLAGS_long: | |
| 2820 if (n & 0x8000000000000000) | |
| 2821 { error("signed integer overflow"); | |
| 2822 result = TOK.TOKuns64v; | |
| 2823 } | |
| 2824 else | |
| 2825 result = TOK.TOKint64v; | |
| 2826 break; | |
| 2827 | |
| 2828 case FLAGS.FLAGS_long: | |
| 2829 if (n & 0x8000000000000000) | |
| 2830 result = TOK.TOKuns64v; | |
| 2831 else | |
| 2832 result = TOK.TOKint64v; | |
| 2833 break; | |
| 2834 | |
| 2835 case FLAGS.FLAGS_unsigned | FLAGS.FLAGS_long: | |
| 2836 case FLAGS.FLAGS_decimal | FLAGS.FLAGS_unsigned | FLAGS.FLAGS_long: | |
| 2837 result = TOK.TOKuns64v; | |
| 2838 break; | |
| 2839 | |
| 2840 default: | |
| 2841 debug { | |
| 2842 printf("%x\n",flags); | |
| 2843 } | |
| 2844 assert(0); | |
| 2845 } | |
| 2846 t.uns64value = n; | |
| 2847 return result; | |
| 2848 } | |
| 2849 | |
| 2850 /************************************** | |
| 2851 * Read in characters, converting them to real. | |
| 2852 * Bugs: | |
| 2853 * Exponent overflow not detected. | |
| 2854 * Too much requested precision is not detected. | |
| 2855 */ | |
| 2856 TOK inreal(Token* t) | |
| 2857 in | |
| 2858 { | |
| 2859 assert(*p == '.' || isdigit(*p)); | |
| 2860 } | |
| 2861 out (result) | |
| 2862 { | |
| 2863 switch (result) | |
| 2864 { | |
| 2865 case TOKfloat32v: | |
| 2866 case TOKfloat64v: | |
| 2867 case TOKfloat80v: | |
| 2868 case TOKimaginary32v: | |
| 2869 case TOKimaginary64v: | |
| 2870 case TOKimaginary80v: | |
| 2871 break; | |
| 2872 | |
| 2873 default: | |
| 2874 assert(0); | |
| 2875 } | |
| 2876 } | |
| 2877 body | |
| 2878 { | |
| 2879 int dblstate; | |
| 2880 uint c; | |
| 2881 char hex; // is this a hexadecimal-floating-constant? | |
| 2882 TOK result; | |
| 2883 | |
| 2884 //printf("Lexer.inreal()\n"); | |
| 2885 stringbuffer.reset(); | |
| 2886 dblstate = 0; | |
| 2887 hex = 0; | |
| 2888 Lnext: | |
| 2889 while (true) | |
| 2890 { | |
| 2891 // Get next char from input | |
| 2892 c = *p++; | |
| 2893 //printf("dblstate = %d, c = '%c'\n", dblstate, c); | |
| 2894 while (true) | |
| 2895 { | |
| 2896 switch (dblstate) | |
| 2897 { | |
| 2898 case 0: // opening state | |
| 2899 if (c == '0') | |
| 2900 dblstate = 9; | |
| 2901 else if (c == '.') | |
| 2902 dblstate = 3; | |
| 2903 else | |
| 2904 dblstate = 1; | |
| 2905 break; | |
| 2906 | |
| 2907 case 9: | |
| 2908 dblstate = 1; | |
| 2909 if (c == 'X' || c == 'x') | |
| 2910 { | |
| 2911 hex++; | |
| 2912 break; | |
| 2913 } | |
| 2914 case 1: // digits to left of . | |
| 2915 case 3: // digits to right of . | |
| 2916 case 7: // continuing exponent digits | |
| 2917 if (!isdigit(c) && !(hex && isxdigit(c))) | |
| 2918 { | |
| 2919 if (c == '_') | |
| 2920 goto Lnext; // ignore embedded '_' | |
| 2921 dblstate++; | |
| 2922 continue; | |
| 2923 } | |
| 2924 break; | |
| 2925 | |
| 2926 case 2: // no more digits to left of . | |
| 2927 if (c == '.') | |
| 2928 { | |
| 2929 dblstate++; | |
| 2930 break; | |
| 2931 } | |
| 2932 case 4: // no more digits to right of . | |
| 2933 if ((c == 'E' || c == 'e') || | |
| 2934 hex && (c == 'P' || c == 'p')) | |
| 2935 { | |
| 2936 dblstate = 5; | |
| 2937 hex = 0; // exponent is always decimal | |
| 2938 break; | |
| 2939 } | |
| 2940 if (hex) | |
| 2941 error("binary-exponent-part required"); | |
| 2942 goto done; | |
| 2943 | |
| 2944 case 5: // looking immediately to right of E | |
| 2945 dblstate++; | |
| 2946 if (c == '-' || c == '+') | |
| 2947 break; | |
| 2948 case 6: // 1st exponent digit expected | |
| 2949 if (!isdigit(c)) | |
| 2950 error("exponent expected"); | |
| 2951 dblstate++; | |
| 2952 break; | |
| 2953 | |
| 2954 case 8: // past end of exponent digits | |
| 2955 goto done; | |
| 79 | 2956 |
| 2957 default: | |
| 2958 assert(0, "inreal.dblstate has unexpected value"); | |
| 0 | 2959 } |
| 2960 break; | |
| 2961 } | |
| 2962 stringbuffer.writeByte(c); | |
| 2963 } | |
| 2964 done: | |
| 2965 p--; | |
| 2966 | |
| 2967 stringbuffer.writeByte(0); | |
| 2968 | |
| 114 | 2969 version (Windows) { /// && __DMC__ |
| 0 | 2970 char* save = __locale_decpoint; |
| 2971 __locale_decpoint = cast(char*)".".ptr; | |
| 2972 } | |
| 2973 t.float80value = strtold(cast(char*)stringbuffer.data, null); | |
| 2974 | |
| 2975 errno = 0; | |
| 2976 switch (*p) | |
| 2977 { | |
| 2978 case 'F': | |
| 2979 case 'f': | |
| 2980 strtof(cast(char*)stringbuffer.data, null); | |
| 2981 result = TOKfloat32v; | |
| 2982 p++; | |
| 2983 break; | |
| 2984 | |
| 2985 default: | |
| 2986 strtod(cast(char*)stringbuffer.data, null); | |
| 2987 result = TOKfloat64v; | |
| 2988 break; | |
| 2989 | |
| 2990 case 'l': | |
| 2991 if (!global.params.useDeprecated) | |
| 2992 error("'l' suffix is deprecated, use 'L' instead"); | |
| 2993 case 'L': | |
| 2994 result = TOKfloat80v; | |
| 2995 p++; | |
| 2996 break; | |
| 2997 } | |
| 2998 if (*p == 'i' || *p == 'I') | |
| 2999 { | |
| 3000 if (!global.params.useDeprecated && *p == 'I') | |
| 3001 error("'I' suffix is deprecated, use 'i' instead"); | |
| 3002 p++; | |
| 3003 switch (result) | |
| 3004 { | |
| 3005 case TOKfloat32v: | |
| 3006 result = TOKimaginary32v; | |
| 3007 break; | |
| 3008 case TOKfloat64v: | |
| 3009 result = TOKimaginary64v; | |
| 3010 break; | |
| 3011 case TOKfloat80v: | |
| 3012 result = TOKimaginary80v; | |
| 3013 break; | |
|
157
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3014 default: |
| 0 | 3015 } |
| 3016 } | |
| 3017 | |
| 114 | 3018 version (Windows) { ///&& __DMC__ |
| 0 | 3019 __locale_decpoint = save; |
| 3020 } | |
| 3021 if (errno == ERANGE) | |
| 3022 error("number is not representable"); | |
| 3023 | |
| 3024 return result; | |
| 3025 } | |
| 3026 | |
| 3027 void error(T...)(string format, T t) | |
| 3028 { | |
| 3029 error(this.loc, format, t); | |
| 3030 } | |
| 3031 | |
| 3032 void error(T...)(Loc loc, string format, T t) | |
| 3033 { | |
| 3034 if (mod && !global.gag) | |
| 3035 { | |
| 3036 string p = loc.toChars(); | |
| 3037 if (p.length != 0) | |
| 3038 writef("%s: ", p); | |
| 3039 | |
| 3040 writefln(format, t); | |
| 3041 | |
| 3042 if (global.errors >= 20) // moderate blizzard of cascading messages | |
| 3043 fatal(); | |
| 3044 } | |
| 3045 | |
| 3046 global.errors++; | |
| 3047 } | |
| 3048 | |
| 162 | 3049 /********************************************* |
| 3050 * Do pragma. | |
| 3051 * Currently, the only pragma supported is: | |
| 3052 * #line linnum [filespec] | |
| 3053 */ | |
| 0 | 3054 void pragma_() |
| 3055 { | |
| 162 | 3056 Token tok; |
| 3057 int linnum; | |
| 3058 string filespec = null; | |
| 3059 Loc loc = this.loc; | |
| 3060 | |
| 3061 scan(&tok); | |
| 3062 if (tok.value != TOKidentifier || tok.ident != Id.line) | |
| 3063 goto Lerr; | |
| 3064 | |
| 3065 scan(&tok); | |
| 3066 if (tok.value == TOKint32v || tok.value == TOKint64v) | |
| 3067 linnum = cast(int)(tok.uns64value - 1); /// | |
| 3068 else | |
| 3069 goto Lerr; | |
| 3070 | |
| 3071 while (1) | |
| 3072 { | |
| 3073 switch (*p) | |
| 3074 { | |
| 3075 case 0: | |
| 3076 case 0x1A: | |
| 3077 case '\n': | |
| 3078 Lnewline: | |
| 3079 this.loc.linnum = linnum; | |
| 3080 if (filespec != null) | |
| 3081 this.loc.filename = filespec; | |
| 3082 return; | |
| 3083 | |
| 3084 case '\r': | |
| 3085 p++; | |
| 3086 if (*p != '\n') | |
| 3087 { p--; | |
| 3088 goto Lnewline; | |
| 3089 } | |
| 3090 continue; | |
| 3091 | |
| 3092 case ' ': | |
| 3093 case '\t': | |
| 3094 case '\v': | |
| 3095 case '\f': | |
| 3096 p++; | |
| 3097 continue; // skip white space | |
| 3098 | |
| 3099 case '_': | |
| 3100 if (mod && memcmp(p, "__FILE__".ptr, 8) == 0) | |
| 3101 { | |
| 3102 p += 8; | |
| 3103 filespec = (loc.filename ? loc.filename : mod.ident.toChars()); | |
| 3104 } | |
| 3105 continue; | |
| 3106 | |
| 3107 case '"': | |
| 3108 if (filespec) | |
| 3109 goto Lerr; | |
| 3110 stringbuffer.reset(); | |
| 3111 p++; | |
| 3112 while (1) | |
| 3113 { | |
| 3114 uint c; | |
| 3115 | |
| 3116 c = *p; | |
| 3117 switch (c) | |
| 3118 { | |
| 3119 case '\n': | |
| 3120 case '\r': | |
| 3121 case 0: | |
| 3122 case 0x1A: | |
| 3123 goto Lerr; | |
| 3124 | |
| 3125 case '"': | |
| 3126 stringbuffer.writeByte(0); | |
| 3127 filespec = stringbuffer.extractString(); /// | |
| 3128 p++; | |
| 3129 break; | |
| 3130 | |
| 3131 default: | |
| 3132 if (c & 0x80) | |
| 3133 { | |
| 3134 uint u = decodeUTF(); | |
| 3135 if (u == PS || u == LS) | |
| 3136 goto Lerr; | |
| 3137 } | |
| 3138 stringbuffer.writeByte(c); | |
| 3139 p++; | |
| 3140 continue; | |
| 3141 } | |
| 3142 break; | |
| 3143 } | |
| 3144 continue; | |
| 3145 | |
| 3146 default: | |
| 3147 if (*p & 0x80) | |
| 3148 { | |
| 3149 uint u = decodeUTF(); | |
| 3150 if (u == PS || u == LS) | |
| 3151 goto Lnewline; | |
| 3152 } | |
| 3153 goto Lerr; | |
| 3154 } | |
| 3155 } | |
| 3156 | |
| 3157 Lerr: | |
| 3158 error(loc, "#line integer [\"filespec\"]\\n expected"); | |
| 0 | 3159 } |
| 3160 | |
| 49 | 3161 /******************************************** |
| 3162 * Decode UTF character. | |
| 3163 * Issue error messages for invalid sequences. | |
| 3164 * Return decoded character, advance p to last character in UTF sequence. | |
| 3165 */ | |
| 0 | 3166 uint decodeUTF() |
| 3167 { | |
| 49 | 3168 dchar u; |
| 3169 ubyte c; | |
| 3170 ubyte* s = p; | |
| 3171 size_t len; | |
| 3172 size_t idx; | |
| 3173 string msg; | |
| 3174 | |
| 3175 c = *s; | |
| 3176 assert(c & 0x80); | |
| 3177 | |
| 3178 // Check length of remaining string up to 6 UTF-8 characters | |
| 3179 for (len = 1; len < 6 && s[len]; len++) { | |
| 3180 ; | |
| 3181 } | |
| 3182 | |
| 3183 idx = 0; | |
| 3184 msg = utf_decodeChar(cast(string)s[0..len], &idx, &u); | |
| 3185 p += idx - 1; | |
| 3186 if (msg) | |
| 3187 { | |
| 3188 error("%s", msg); | |
| 3189 } | |
| 3190 return u; | |
| 0 | 3191 } |
| 3192 | |
|
157
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3193 /*************************************************** |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3194 * Parse doc comment embedded between t.ptr and p. |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3195 * Remove trailing blanks and tabs from lines. |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3196 * Replace all newlines with \n. |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3197 * Remove leading comment character from each line. |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3198 * Decide if it's a lineComment or a blockComment. |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3199 * Append to previous one for this token. |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3200 */ |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3201 void getDocComment(Token* t, uint lineComment) |
| 0 | 3202 { |
|
157
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3203 /* ct tells us which kind of comment it is: '!', '/', '*', or '+' |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3204 */ |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3205 ubyte ct = t.ptr[2]; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3206 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3207 /* Start of comment text skips over / * *, / + +, or / / / |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3208 */ |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3209 ubyte* q = t.ptr + 3; // start of comment text |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3210 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3211 ubyte* qend = p; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3212 if (ct == '*' || ct == '+') |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3213 qend -= 2; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3214 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3215 /* Scan over initial row of ****'s or ++++'s or ////'s |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3216 */ |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3217 for (; q < qend; q++) |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3218 { |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3219 if (*q != ct) |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3220 break; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3221 } |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3222 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3223 /* Remove trailing row of ****'s or ++++'s |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3224 */ |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3225 if (ct != '/' && ct != '!') |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3226 { |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3227 for (; q < qend; qend--) |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3228 { |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3229 if (qend[-1] != ct) |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3230 break; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3231 } |
|
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 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3234 /* Comment is now [q .. qend]. |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3235 * Canonicalize it into buf[]. |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3236 */ |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3237 OutBuffer buf = new OutBuffer; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3238 int linestart = 0; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3239 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3240 for (; q < qend; q++) |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3241 { |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3242 ubyte c = *q; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3243 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3244 switch (c) |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3245 { |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3246 case '*': |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3247 case '+': |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3248 if (linestart && c == ct) |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3249 { linestart = 0; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3250 /* Trim preceding whitespace up to preceding \n |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3251 */ |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3252 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
|
3253 buf.offset--; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3254 continue; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3255 } |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3256 break; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3257 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3258 case ' ': |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3259 case '\t': |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3260 break; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3261 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3262 case '\r': |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3263 if (q[1] == '\n') |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3264 continue; // skip the \r |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3265 goto Lnewline; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3266 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3267 default: |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3268 if (c == 226) |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3269 { |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3270 // If LS or PS |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3271 if (q[1] == 128 && |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3272 (q[2] == 168 || q[2] == 169)) |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3273 { |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3274 q += 2; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3275 goto Lnewline; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3276 } |
|
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 linestart = 0; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3279 break; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3280 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3281 Lnewline: |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3282 c = '\n'; // replace all newlines with \n |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3283 case '\n': |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3284 linestart = 1; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3285 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3286 /* Trim trailing whitespace |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3287 */ |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3288 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
|
3289 buf.offset--; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3290 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3291 break; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3292 } |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3293 buf.writeByte(c); |
|
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 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3296 // Always end with a newline |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3297 if (!buf.offset || buf.data[buf.offset - 1] != '\n') |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3298 buf.writeByte('\n'); |
|
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 buf.writeByte(0); |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3301 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3302 // 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
|
3303 // after other non-whitespace on the same line. |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3304 string* dc = (lineComment && anyToken) |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3305 ? &t.lineComment |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3306 : &t.blockComment; |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3307 |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3308 // Combine with previous doc comment, if any |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3309 if (*dc) |
|
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
3310 *dc = combineComments(*dc, cast(string) buf.data[0 .. buf.size]); // TODO: utf decode etc? |
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3311 else |
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3312 { |
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3313 auto bufsize = buf.size; |
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3314 *dc = cast(string) buf.extractData()[0..bufsize]; |
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3315 } |
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3316 } |
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3317 |
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3318 /******************************************** |
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3319 * Combine two document comments into one, |
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3320 * separated by a newline. |
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3321 */ |
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3322 static string combineComments(string c1, string c2) |
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3323 { |
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3324 //printf("Lexer::combineComments('%s', '%s')\n", c1, c2); |
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3325 |
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3326 string c = c2; |
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3327 |
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3328 if (c1) |
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3329 { |
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3330 c = c1; |
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3331 if (c2) |
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3332 { |
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3333 size_t len1 = c1.length; |
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3334 size_t len2 = c2.length; |
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3335 |
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3336 c = c1.idup; |
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3337 if (len1 && c1[$-1] != '\n') |
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3338 c ~= '\n'; |
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3339 c ~= c2; |
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3340 } |
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3341 } |
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3342 return c; |
| 0 | 3343 } |
| 3344 | |
| 3345 static bool isValidIdentifier(string p) | |
| 3346 { | |
| 3347 if (p.length == 0) { | |
| 3348 return false; | |
| 3349 } | |
| 3350 | |
| 3351 if (p[0] >= '0' && p[0] <= '9') { // beware of isdigit() on signed chars | |
| 3352 return false; | |
| 3353 } | |
| 3354 | |
| 3355 size_t idx = 0; | |
| 3356 while (idx < p.length) | |
| 3357 { | |
| 3358 dchar dc; | |
| 3359 | |
| 3360 if (utf_decodeChar(p, &idx, &dc) !is null) { | |
| 3361 return false; | |
| 3362 } | |
| 3363 | |
| 3364 if (!((dc >= 0x80 && isUniAlpha(dc)) || isalnum(dc) || dc == '_')) { | |
| 3365 return false; | |
| 3366 } | |
| 3367 } | |
| 3368 | |
| 3369 return true; | |
| 3370 } | |
| 3371 | |
| 79 | 3372 /// TODO: use normal string append when GC works |
| 3373 static string combineComments(const(char)[] c1, const(char)[] c2) | |
| 0 | 3374 { |
| 79 | 3375 //writef("Lexer.combineComments('%s', '%s')\n", c1, c2); |
| 0 | 3376 |
| 79 | 3377 char[] c = cast(char[]) c2; |
| 3378 | |
| 3379 if (c1 !is null) | |
| 0 | 3380 { |
| 79 | 3381 c = cast(char[]) c1; |
| 3382 if (c2 !is null) | |
| 0 | 3383 { |
| 79 | 3384 c = cast(char[]) (GC.malloc(c1.length + 1 + c2.length)[0 .. c1.length + 1 + c2.length]); |
| 3385 size_t len1 = c1.length; | |
| 3386 c[0..len1] = c1[]; | |
| 3387 c[len1++] = '\n'; | |
| 3388 c[len1 .. len1 + c2.length] = c2[]; | |
| 0 | 3389 } |
| 3390 } | |
| 79 | 3391 |
| 3392 return cast(string)c; | |
| 0 | 3393 } |
| 3394 } |