| 1 | /* $RCSfile: toke.c,v $$Revision: 4.0.1.1 $$Date: 91/04/12 09:18:18 $ |
| 2 | * |
| 3 | * Copyright (c) 1989, Larry Wall |
| 4 | * |
| 5 | * You may distribute under the terms of the GNU General Public License |
| 6 | * as specified in the README file that comes with the perl 3.0 kit. |
| 7 | * |
| 8 | * $Log: toke.c,v $ |
| 9 | * Revision 4.0.1.1 91/04/12 09:18:18 lwall |
| 10 | * patch1: perl -de "print" wouldn't stop at the first statement |
| 11 | * |
| 12 | * Revision 4.0 91/03/20 01:42:14 lwall |
| 13 | * 4.0 baseline. |
| 14 | * |
| 15 | */ |
| 16 | |
| 17 | #include "EXTERN.h" |
| 18 | #include "perl.h" |
| 19 | #include "perly.h" |
| 20 | |
| 21 | #ifdef I_FCNTL |
| 22 | #include <fcntl.h> |
| 23 | #endif |
| 24 | #ifdef I_SYS_FILE |
| 25 | #include <sys/file.h> |
| 26 | #endif |
| 27 | |
| 28 | /* which backslash sequences to keep in m// or s// */ |
| 29 | |
| 30 | static char *patleave = "\\.^$@dDwWsSbB+*?|()-nrtf0123456789[{]}"; |
| 31 | |
| 32 | char *reparse; /* if non-null, scanident found ${foo[$bar]} */ |
| 33 | |
| 34 | void checkcomma(); |
| 35 | |
| 36 | #ifdef CLINE |
| 37 | #undef CLINE |
| 38 | #endif |
| 39 | #define CLINE (cmdline = (curcmd->c_line < cmdline ? curcmd->c_line : cmdline)) |
| 40 | |
| 41 | #define META(c) ((c) | 128) |
| 42 | |
| 43 | #define RETURN(retval) return (bufptr = s,(int)retval) |
| 44 | #define OPERATOR(retval) return (expectterm = TRUE,bufptr = s,(int)retval) |
| 45 | #define TERM(retval) return (CLINE, expectterm = FALSE,bufptr = s,(int)retval) |
| 46 | #define LOOPX(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)LOOPEX) |
| 47 | #define FTST(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)FILETEST) |
| 48 | #define FUN0(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC0) |
| 49 | #define FUN1(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC1) |
| 50 | #define FUN2(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC2) |
| 51 | #define FUN2x(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC2x) |
| 52 | #define FUN3(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC3) |
| 53 | #define FUN4(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC4) |
| 54 | #define FUN5(f) return(yylval.ival = f,expectterm = FALSE,bufptr = s,(int)FUNC5) |
| 55 | #define FL(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FLIST) |
| 56 | #define FL2(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FLIST2) |
| 57 | #define HFUN(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)HSHFUN) |
| 58 | #define HFUN3(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)HSHFUN3) |
| 59 | #define LFUN(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)LVALFUN) |
| 60 | #define AOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)ADDOP) |
| 61 | #define MOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)MULOP) |
| 62 | #define EOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)EQOP) |
| 63 | #define ROP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)RELOP) |
| 64 | #define FOP(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP) |
| 65 | #define FOP2(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP2) |
| 66 | #define FOP3(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP3) |
| 67 | #define FOP4(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP4) |
| 68 | #define FOP22(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP22) |
| 69 | #define FOP25(f) return(yylval.ival=f,expectterm = FALSE,bufptr = s,(int)FILOP25) |
| 70 | |
| 71 | /* This bit of chicanery makes a unary function followed by |
| 72 | * a parenthesis into a function with one argument, highest precedence. |
| 73 | */ |
| 74 | #define UNI(f) return(yylval.ival = f,expectterm = TRUE,bufptr = s, \ |
| 75 | (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) ) |
| 76 | |
| 77 | /* This does similarly for list operators, merely by pretending that the |
| 78 | * paren came before the listop rather than after. |
| 79 | */ |
| 80 | #define LOP(f) return(CLINE, *s == '(' || (s = skipspace(s), *s == '(') ? \ |
| 81 | (*s = META('('), bufptr = oldbufptr, '(') : \ |
| 82 | (yylval.ival=f,expectterm = TRUE,bufptr = s,(int)LISTOP)) |
| 83 | /* grandfather return to old style */ |
| 84 | #define OLDLOP(f) return(yylval.ival=f,expectterm = TRUE,bufptr = s,(int)LISTOP) |
| 85 | |
| 86 | char * |
| 87 | skipspace(s) |
| 88 | register char *s; |
| 89 | { |
| 90 | while (s < bufend && isascii(*s) && isspace(*s)) |
| 91 | s++; |
| 92 | return s; |
| 93 | } |
| 94 | |
| 95 | #ifdef CRIPPLED_CC |
| 96 | |
| 97 | #undef UNI |
| 98 | #undef LOP |
| 99 | #define UNI(f) return uni(f,s) |
| 100 | #define LOP(f) return lop(f,s) |
| 101 | |
| 102 | int |
| 103 | uni(f,s) |
| 104 | int f; |
| 105 | char *s; |
| 106 | { |
| 107 | yylval.ival = f; |
| 108 | expectterm = TRUE; |
| 109 | bufptr = s; |
| 110 | if (*s == '(') |
| 111 | return FUNC1; |
| 112 | s = skipspace(s); |
| 113 | if (*s == '(') |
| 114 | return FUNC1; |
| 115 | else |
| 116 | return UNIOP; |
| 117 | } |
| 118 | |
| 119 | int |
| 120 | lop(f,s) |
| 121 | int f; |
| 122 | char *s; |
| 123 | { |
| 124 | CLINE; |
| 125 | if (*s != '(') |
| 126 | s = skipspace(s); |
| 127 | if (*s == '(') { |
| 128 | *s = META('('); |
| 129 | bufptr = oldbufptr; |
| 130 | return '('; |
| 131 | } |
| 132 | else { |
| 133 | yylval.ival=f; |
| 134 | expectterm = TRUE; |
| 135 | bufptr = s; |
| 136 | return LISTOP; |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | #endif /* CRIPPLED_CC */ |
| 141 | |
| 142 | yylex() |
| 143 | { |
| 144 | register char *s = bufptr; |
| 145 | register char *d; |
| 146 | register int tmp; |
| 147 | static bool in_format = FALSE; |
| 148 | static bool firstline = TRUE; |
| 149 | extern int yychar; /* last token */ |
| 150 | |
| 151 | oldoldbufptr = oldbufptr; |
| 152 | oldbufptr = s; |
| 153 | |
| 154 | retry: |
| 155 | #ifdef YYDEBUG |
| 156 | if (debug & 1) |
| 157 | if (index(s,'\n')) |
| 158 | fprintf(stderr,"Tokener at %s",s); |
| 159 | else |
| 160 | fprintf(stderr,"Tokener at %s\n",s); |
| 161 | #endif |
| 162 | #ifdef BADSWITCH |
| 163 | if (*s & 128) { |
| 164 | if ((*s & 127) == '(') |
| 165 | *s++ = '('; |
| 166 | else |
| 167 | warn("Unrecognized character \\%03o ignored", *s++ & 255); |
| 168 | goto retry; |
| 169 | } |
| 170 | #endif |
| 171 | switch (*s) { |
| 172 | default: |
| 173 | if ((*s & 127) == '(') |
| 174 | *s++ = '('; |
| 175 | else |
| 176 | warn("Unrecognized character \\%03o ignored", *s++ & 255); |
| 177 | goto retry; |
| 178 | case 4: |
| 179 | case 26: |
| 180 | goto fake_eof; /* emulate EOF on ^D or ^Z */ |
| 181 | case 0: |
| 182 | if (!rsfp) |
| 183 | RETURN(0); |
| 184 | if (s++ < bufend) |
| 185 | goto retry; /* ignore stray nulls */ |
| 186 | if (firstline) { |
| 187 | firstline = FALSE; |
| 188 | if (minus_n || minus_p || perldb) { |
| 189 | str_set(linestr,""); |
| 190 | if (perldb) { |
| 191 | char *getenv(); |
| 192 | char *pdb = getenv("PERLDB"); |
| 193 | |
| 194 | str_cat(linestr, pdb ? pdb : "require 'perldb.pl'"); |
| 195 | str_cat(linestr, ";"); |
| 196 | } |
| 197 | if (minus_n || minus_p) { |
| 198 | str_cat(linestr,"line: while (<>) {"); |
| 199 | if (minus_l) |
| 200 | str_cat(linestr,"chop;"); |
| 201 | if (minus_a) |
| 202 | str_cat(linestr,"@F=split(' ');"); |
| 203 | } |
| 204 | oldoldbufptr = oldbufptr = s = str_get(linestr); |
| 205 | bufend = linestr->str_ptr + linestr->str_cur; |
| 206 | goto retry; |
| 207 | } |
| 208 | } |
| 209 | if (in_format) { |
| 210 | bufptr = bufend; |
| 211 | yylval.formval = load_format(); |
| 212 | in_format = FALSE; |
| 213 | oldoldbufptr = oldbufptr = s = str_get(linestr) + 1; |
| 214 | bufend = linestr->str_ptr + linestr->str_cur; |
| 215 | OPERATOR(FORMLIST); |
| 216 | } |
| 217 | curcmd->c_line++; |
| 218 | #ifdef CRYPTSCRIPT |
| 219 | cryptswitch(); |
| 220 | #endif /* CRYPTSCRIPT */ |
| 221 | do { |
| 222 | if ((s = str_gets(linestr, rsfp, 0)) == Nullch) { |
| 223 | fake_eof: |
| 224 | if (rsfp) { |
| 225 | if (preprocess) |
| 226 | (void)mypclose(rsfp); |
| 227 | else if (rsfp == stdin) |
| 228 | clearerr(stdin); |
| 229 | else |
| 230 | (void)fclose(rsfp); |
| 231 | rsfp = Nullfp; |
| 232 | } |
| 233 | if (minus_n || minus_p) { |
| 234 | str_set(linestr,minus_p ? ";}continue{print" : ""); |
| 235 | str_cat(linestr,";}"); |
| 236 | oldoldbufptr = oldbufptr = s = str_get(linestr); |
| 237 | bufend = linestr->str_ptr + linestr->str_cur; |
| 238 | minus_n = minus_p = 0; |
| 239 | goto retry; |
| 240 | } |
| 241 | oldoldbufptr = oldbufptr = s = str_get(linestr); |
| 242 | str_set(linestr,""); |
| 243 | RETURN(';'); /* not infinite loop because rsfp is NULL now */ |
| 244 | } |
| 245 | if (doextract && *linestr->str_ptr == '#') |
| 246 | doextract = FALSE; |
| 247 | } while (doextract); |
| 248 | oldoldbufptr = oldbufptr = bufptr = s; |
| 249 | if (perldb) { |
| 250 | STR *str = Str_new(85,0); |
| 251 | |
| 252 | str_sset(str,linestr); |
| 253 | astore(stab_xarray(curcmd->c_filestab),(int)curcmd->c_line,str); |
| 254 | } |
| 255 | #ifdef DEBUG |
| 256 | if (firstline) { |
| 257 | char *showinput(); |
| 258 | s = showinput(); |
| 259 | } |
| 260 | #endif |
| 261 | bufend = linestr->str_ptr + linestr->str_cur; |
| 262 | if (curcmd->c_line == 1) { |
| 263 | if (*s == '#' && s[1] == '!') { |
| 264 | if (!in_eval && !instr(s,"perl") && instr(origargv[0],"perl")) { |
| 265 | char **newargv; |
| 266 | char *cmd; |
| 267 | |
| 268 | s += 2; |
| 269 | if (*s == ' ') |
| 270 | s++; |
| 271 | cmd = s; |
| 272 | while (s < bufend && !isspace(*s)) |
| 273 | s++; |
| 274 | *s++ = '\0'; |
| 275 | while (s < bufend && isspace(*s)) |
| 276 | s++; |
| 277 | if (s < bufend) { |
| 278 | Newz(899,newargv,origargc+3,char*); |
| 279 | newargv[1] = s; |
| 280 | while (s < bufend && !isspace(*s)) |
| 281 | s++; |
| 282 | *s = '\0'; |
| 283 | Copy(origargv+1, newargv+2, origargc+1, char*); |
| 284 | } |
| 285 | else |
| 286 | newargv = origargv; |
| 287 | newargv[0] = cmd; |
| 288 | execv(cmd,newargv); |
| 289 | fatal("Can't exec %s", cmd); |
| 290 | } |
| 291 | } |
| 292 | else { |
| 293 | while (s < bufend && isspace(*s)) |
| 294 | s++; |
| 295 | if (*s == ':') /* for csh's that have to exec sh scripts */ |
| 296 | s++; |
| 297 | } |
| 298 | } |
| 299 | goto retry; |
| 300 | case ' ': case '\t': case '\f': case '\r': case 013: |
| 301 | s++; |
| 302 | goto retry; |
| 303 | case '#': |
| 304 | if (preprocess && s == str_get(linestr) && |
| 305 | s[1] == ' ' && isdigit(s[2])) { |
| 306 | curcmd->c_line = atoi(s+2)-1; |
| 307 | for (s += 2; isdigit(*s); s++) ; |
| 308 | d = bufend; |
| 309 | while (s < d && isspace(*s)) s++; |
| 310 | s[strlen(s)-1] = '\0'; /* wipe out newline */ |
| 311 | if (*s == '"') { |
| 312 | s++; |
| 313 | s[strlen(s)-1] = '\0'; /* wipe out trailing quote */ |
| 314 | } |
| 315 | if (*s) |
| 316 | curcmd->c_filestab = fstab(s); |
| 317 | else |
| 318 | curcmd->c_filestab = fstab(origfilename); |
| 319 | oldoldbufptr = oldbufptr = s = str_get(linestr); |
| 320 | } |
| 321 | /* FALL THROUGH */ |
| 322 | case '\n': |
| 323 | if (in_eval && !rsfp) { |
| 324 | d = bufend; |
| 325 | while (s < d && *s != '\n') |
| 326 | s++; |
| 327 | if (s < d) |
| 328 | s++; |
| 329 | if (perldb) { |
| 330 | STR *str = Str_new(85,0); |
| 331 | |
| 332 | str_nset(str,linestr->str_ptr, s - linestr->str_ptr); |
| 333 | astore(stab_xarray(curcmd->c_filestab),(int)curcmd->c_line,str); |
| 334 | str_chop(linestr, s); |
| 335 | } |
| 336 | if (in_format) { |
| 337 | bufptr = s; |
| 338 | yylval.formval = load_format(); |
| 339 | in_format = FALSE; |
| 340 | oldoldbufptr = oldbufptr = s = bufptr + 1; |
| 341 | TERM(FORMLIST); |
| 342 | } |
| 343 | curcmd->c_line++; |
| 344 | } |
| 345 | else { |
| 346 | *s = '\0'; |
| 347 | bufend = s; |
| 348 | } |
| 349 | goto retry; |
| 350 | case '-': |
| 351 | if (s[1] && isalpha(s[1]) && !isalpha(s[2])) { |
| 352 | s++; |
| 353 | switch (*s++) { |
| 354 | case 'r': FTST(O_FTEREAD); |
| 355 | case 'w': FTST(O_FTEWRITE); |
| 356 | case 'x': FTST(O_FTEEXEC); |
| 357 | case 'o': FTST(O_FTEOWNED); |
| 358 | case 'R': FTST(O_FTRREAD); |
| 359 | case 'W': FTST(O_FTRWRITE); |
| 360 | case 'X': FTST(O_FTREXEC); |
| 361 | case 'O': FTST(O_FTROWNED); |
| 362 | case 'e': FTST(O_FTIS); |
| 363 | case 'z': FTST(O_FTZERO); |
| 364 | case 's': FTST(O_FTSIZE); |
| 365 | case 'f': FTST(O_FTFILE); |
| 366 | case 'd': FTST(O_FTDIR); |
| 367 | case 'l': FTST(O_FTLINK); |
| 368 | case 'p': FTST(O_FTPIPE); |
| 369 | case 'S': FTST(O_FTSOCK); |
| 370 | case 'u': FTST(O_FTSUID); |
| 371 | case 'g': FTST(O_FTSGID); |
| 372 | case 'k': FTST(O_FTSVTX); |
| 373 | case 'b': FTST(O_FTBLK); |
| 374 | case 'c': FTST(O_FTCHR); |
| 375 | case 't': FTST(O_FTTTY); |
| 376 | case 'T': FTST(O_FTTEXT); |
| 377 | case 'B': FTST(O_FTBINARY); |
| 378 | case 'M': stabent("\024",TRUE); FTST(O_FTMTIME); |
| 379 | case 'A': stabent("\024",TRUE); FTST(O_FTATIME); |
| 380 | case 'C': stabent("\024",TRUE); FTST(O_FTCTIME); |
| 381 | default: |
| 382 | s -= 2; |
| 383 | break; |
| 384 | } |
| 385 | } |
| 386 | tmp = *s++; |
| 387 | if (*s == tmp) { |
| 388 | s++; |
| 389 | RETURN(DEC); |
| 390 | } |
| 391 | if (expectterm) |
| 392 | OPERATOR('-'); |
| 393 | else |
| 394 | AOP(O_SUBTRACT); |
| 395 | case '+': |
| 396 | tmp = *s++; |
| 397 | if (*s == tmp) { |
| 398 | s++; |
| 399 | RETURN(INC); |
| 400 | } |
| 401 | if (expectterm) |
| 402 | OPERATOR('+'); |
| 403 | else |
| 404 | AOP(O_ADD); |
| 405 | |
| 406 | case '*': |
| 407 | if (expectterm) { |
| 408 | s = scanident(s,bufend,tokenbuf); |
| 409 | yylval.stabval = stabent(tokenbuf,TRUE); |
| 410 | TERM(STAR); |
| 411 | } |
| 412 | tmp = *s++; |
| 413 | if (*s == tmp) { |
| 414 | s++; |
| 415 | OPERATOR(POW); |
| 416 | } |
| 417 | MOP(O_MULTIPLY); |
| 418 | case '%': |
| 419 | if (expectterm) { |
| 420 | s = scanident(s,bufend,tokenbuf); |
| 421 | yylval.stabval = hadd(stabent(tokenbuf,TRUE)); |
| 422 | TERM(HSH); |
| 423 | } |
| 424 | s++; |
| 425 | MOP(O_MODULO); |
| 426 | |
| 427 | case '^': |
| 428 | case '~': |
| 429 | case '(': |
| 430 | case ',': |
| 431 | case ':': |
| 432 | case '[': |
| 433 | tmp = *s++; |
| 434 | OPERATOR(tmp); |
| 435 | case '{': |
| 436 | tmp = *s++; |
| 437 | if (isspace(*s) || *s == '#') |
| 438 | cmdline = NOLINE; /* invalidate current command line number */ |
| 439 | OPERATOR(tmp); |
| 440 | case ';': |
| 441 | if (curcmd->c_line < cmdline) |
| 442 | cmdline = curcmd->c_line; |
| 443 | tmp = *s++; |
| 444 | OPERATOR(tmp); |
| 445 | case ')': |
| 446 | case ']': |
| 447 | tmp = *s++; |
| 448 | TERM(tmp); |
| 449 | case '}': |
| 450 | tmp = *s++; |
| 451 | RETURN(tmp); |
| 452 | case '&': |
| 453 | s++; |
| 454 | tmp = *s++; |
| 455 | if (tmp == '&') |
| 456 | OPERATOR(ANDAND); |
| 457 | s--; |
| 458 | if (expectterm) { |
| 459 | d = bufend; |
| 460 | while (s < d && isspace(*s)) |
| 461 | s++; |
| 462 | if (isalpha(*s) || *s == '_' || *s == '\'') |
| 463 | *(--s) = '\\'; /* force next ident to WORD */ |
| 464 | OPERATOR(AMPER); |
| 465 | } |
| 466 | OPERATOR('&'); |
| 467 | case '|': |
| 468 | s++; |
| 469 | tmp = *s++; |
| 470 | if (tmp == '|') |
| 471 | OPERATOR(OROR); |
| 472 | s--; |
| 473 | OPERATOR('|'); |
| 474 | case '=': |
| 475 | s++; |
| 476 | tmp = *s++; |
| 477 | if (tmp == '=') |
| 478 | EOP(O_EQ); |
| 479 | if (tmp == '~') |
| 480 | OPERATOR(MATCH); |
| 481 | s--; |
| 482 | OPERATOR('='); |
| 483 | case '!': |
| 484 | s++; |
| 485 | tmp = *s++; |
| 486 | if (tmp == '=') |
| 487 | EOP(O_NE); |
| 488 | if (tmp == '~') |
| 489 | OPERATOR(NMATCH); |
| 490 | s--; |
| 491 | OPERATOR('!'); |
| 492 | case '<': |
| 493 | if (expectterm) { |
| 494 | s = scanstr(s); |
| 495 | TERM(RSTRING); |
| 496 | } |
| 497 | s++; |
| 498 | tmp = *s++; |
| 499 | if (tmp == '<') |
| 500 | OPERATOR(LS); |
| 501 | if (tmp == '=') { |
| 502 | tmp = *s++; |
| 503 | if (tmp == '>') |
| 504 | EOP(O_NCMP); |
| 505 | s--; |
| 506 | ROP(O_LE); |
| 507 | } |
| 508 | s--; |
| 509 | ROP(O_LT); |
| 510 | case '>': |
| 511 | s++; |
| 512 | tmp = *s++; |
| 513 | if (tmp == '>') |
| 514 | OPERATOR(RS); |
| 515 | if (tmp == '=') |
| 516 | ROP(O_GE); |
| 517 | s--; |
| 518 | ROP(O_GT); |
| 519 | |
| 520 | #define SNARFWORD \ |
| 521 | d = tokenbuf; \ |
| 522 | while (isascii(*s) && \ |
| 523 | (isalpha(*s) || isdigit(*s) || *s == '_' || *s == '\'')) \ |
| 524 | *d++ = *s++; \ |
| 525 | while (d[-1] == '\'') \ |
| 526 | d--,s--; \ |
| 527 | *d = '\0'; \ |
| 528 | d = tokenbuf; |
| 529 | |
| 530 | case '$': |
| 531 | if (s[1] == '#' && (isalpha(s[2]) || s[2] == '_')) { |
| 532 | s++; |
| 533 | s = scanident(s,bufend,tokenbuf); |
| 534 | yylval.stabval = aadd(stabent(tokenbuf,TRUE)); |
| 535 | TERM(ARYLEN); |
| 536 | } |
| 537 | d = s; |
| 538 | s = scanident(s,bufend,tokenbuf); |
| 539 | if (reparse) { /* turn ${foo[bar]} into ($foo[bar]) */ |
| 540 | do_reparse: |
| 541 | s[-1] = ')'; |
| 542 | s = d; |
| 543 | s[1] = s[0]; |
| 544 | s[0] = '('; |
| 545 | goto retry; |
| 546 | } |
| 547 | yylval.stabval = stabent(tokenbuf,TRUE); |
| 548 | TERM(REG); |
| 549 | |
| 550 | case '@': |
| 551 | d = s; |
| 552 | s = scanident(s,bufend,tokenbuf); |
| 553 | if (reparse) |
| 554 | goto do_reparse; |
| 555 | yylval.stabval = aadd(stabent(tokenbuf,TRUE)); |
| 556 | TERM(ARY); |
| 557 | |
| 558 | case '/': /* may either be division or pattern */ |
| 559 | case '?': /* may either be conditional or pattern */ |
| 560 | if (expectterm) { |
| 561 | s = scanpat(s); |
| 562 | TERM(PATTERN); |
| 563 | } |
| 564 | tmp = *s++; |
| 565 | if (tmp == '/') |
| 566 | MOP(O_DIVIDE); |
| 567 | OPERATOR(tmp); |
| 568 | |
| 569 | case '.': |
| 570 | if (!expectterm || !isdigit(s[1])) { |
| 571 | tmp = *s++; |
| 572 | if (*s == tmp) { |
| 573 | s++; |
| 574 | OPERATOR(DOTDOT); |
| 575 | } |
| 576 | AOP(O_CONCAT); |
| 577 | } |
| 578 | /* FALL THROUGH */ |
| 579 | case '0': case '1': case '2': case '3': case '4': |
| 580 | case '5': case '6': case '7': case '8': case '9': |
| 581 | case '\'': case '"': case '`': |
| 582 | s = scanstr(s); |
| 583 | TERM(RSTRING); |
| 584 | |
| 585 | case '\\': /* some magic to force next word to be a WORD */ |
| 586 | s++; /* used by do and sub to force a separate namespace */ |
| 587 | /* FALL THROUGH */ |
| 588 | case '_': |
| 589 | SNARFWORD; |
| 590 | if (d[1] == '_') { |
| 591 | if (strEQ(d,"__LINE__") || strEQ(d,"__FILE__")) { |
| 592 | ARG *arg = op_new(1); |
| 593 | |
| 594 | yylval.arg = arg; |
| 595 | arg->arg_type = O_ITEM; |
| 596 | if (d[2] == 'L') |
| 597 | (void)sprintf(tokenbuf,"%ld",(long)curcmd->c_line); |
| 598 | else |
| 599 | strcpy(tokenbuf, stab_val(curcmd->c_filestab)->str_ptr); |
| 600 | arg[1].arg_type = A_SINGLE; |
| 601 | arg[1].arg_ptr.arg_str = str_make(tokenbuf,strlen(tokenbuf)); |
| 602 | TERM(RSTRING); |
| 603 | } |
| 604 | else if (strEQ(d,"__END__")) { |
| 605 | #ifndef TAINT |
| 606 | STAB *stab; |
| 607 | int fd; |
| 608 | |
| 609 | if (stab = stabent("DATA",FALSE)) { |
| 610 | stab->str_pok |= SP_MULTI; |
| 611 | stab_io(stab) = stio_new(); |
| 612 | stab_io(stab)->ifp = rsfp; |
| 613 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
| 614 | fd = fileno(rsfp); |
| 615 | fcntl(fd,F_SETFD,fd >= 3); |
| 616 | #endif |
| 617 | if (preprocess) |
| 618 | stab_io(stab)->type = '|'; |
| 619 | else if (rsfp == stdin) |
| 620 | stab_io(stab)->type = '-'; |
| 621 | else |
| 622 | stab_io(stab)->type = '<'; |
| 623 | rsfp = Nullfp; |
| 624 | } |
| 625 | #endif |
| 626 | goto fake_eof; |
| 627 | } |
| 628 | } |
| 629 | break; |
| 630 | case 'a': case 'A': |
| 631 | SNARFWORD; |
| 632 | if (strEQ(d,"alarm")) |
| 633 | UNI(O_ALARM); |
| 634 | if (strEQ(d,"accept")) |
| 635 | FOP22(O_ACCEPT); |
| 636 | if (strEQ(d,"atan2")) |
| 637 | FUN2(O_ATAN2); |
| 638 | break; |
| 639 | case 'b': case 'B': |
| 640 | SNARFWORD; |
| 641 | if (strEQ(d,"bind")) |
| 642 | FOP2(O_BIND); |
| 643 | if (strEQ(d,"binmode")) |
| 644 | FOP(O_BINMODE); |
| 645 | break; |
| 646 | case 'c': case 'C': |
| 647 | SNARFWORD; |
| 648 | if (strEQ(d,"chop")) |
| 649 | LFUN(O_CHOP); |
| 650 | if (strEQ(d,"continue")) |
| 651 | OPERATOR(CONTINUE); |
| 652 | if (strEQ(d,"chdir")) { |
| 653 | (void)stabent("ENV",TRUE); /* may use HOME */ |
| 654 | UNI(O_CHDIR); |
| 655 | } |
| 656 | if (strEQ(d,"close")) |
| 657 | FOP(O_CLOSE); |
| 658 | if (strEQ(d,"closedir")) |
| 659 | FOP(O_CLOSEDIR); |
| 660 | if (strEQ(d,"cmp")) |
| 661 | EOP(O_SCMP); |
| 662 | if (strEQ(d,"caller")) |
| 663 | UNI(O_CALLER); |
| 664 | if (strEQ(d,"crypt")) { |
| 665 | #ifdef FCRYPT |
| 666 | init_des(); |
| 667 | #endif |
| 668 | FUN2(O_CRYPT); |
| 669 | } |
| 670 | if (strEQ(d,"chmod")) |
| 671 | LOP(O_CHMOD); |
| 672 | if (strEQ(d,"chown")) |
| 673 | LOP(O_CHOWN); |
| 674 | if (strEQ(d,"connect")) |
| 675 | FOP2(O_CONNECT); |
| 676 | if (strEQ(d,"cos")) |
| 677 | UNI(O_COS); |
| 678 | if (strEQ(d,"chroot")) |
| 679 | UNI(O_CHROOT); |
| 680 | break; |
| 681 | case 'd': case 'D': |
| 682 | SNARFWORD; |
| 683 | if (strEQ(d,"do")) { |
| 684 | d = bufend; |
| 685 | while (s < d && isspace(*s)) |
| 686 | s++; |
| 687 | if (isalpha(*s) || *s == '_') |
| 688 | *(--s) = '\\'; /* force next ident to WORD */ |
| 689 | OPERATOR(DO); |
| 690 | } |
| 691 | if (strEQ(d,"die")) |
| 692 | LOP(O_DIE); |
| 693 | if (strEQ(d,"defined")) |
| 694 | LFUN(O_DEFINED); |
| 695 | if (strEQ(d,"delete")) |
| 696 | OPERATOR(DELETE); |
| 697 | if (strEQ(d,"dbmopen")) |
| 698 | HFUN3(O_DBMOPEN); |
| 699 | if (strEQ(d,"dbmclose")) |
| 700 | HFUN(O_DBMCLOSE); |
| 701 | if (strEQ(d,"dump")) |
| 702 | LOOPX(O_DUMP); |
| 703 | break; |
| 704 | case 'e': case 'E': |
| 705 | SNARFWORD; |
| 706 | if (strEQ(d,"else")) |
| 707 | OPERATOR(ELSE); |
| 708 | if (strEQ(d,"elsif")) { |
| 709 | yylval.ival = curcmd->c_line; |
| 710 | OPERATOR(ELSIF); |
| 711 | } |
| 712 | if (strEQ(d,"eq") || strEQ(d,"EQ")) |
| 713 | EOP(O_SEQ); |
| 714 | if (strEQ(d,"exit")) |
| 715 | UNI(O_EXIT); |
| 716 | if (strEQ(d,"eval")) { |
| 717 | allstabs = TRUE; /* must initialize everything since */ |
| 718 | UNI(O_EVAL); /* we don't know what will be used */ |
| 719 | } |
| 720 | if (strEQ(d,"eof")) |
| 721 | FOP(O_EOF); |
| 722 | if (strEQ(d,"exp")) |
| 723 | UNI(O_EXP); |
| 724 | if (strEQ(d,"each")) |
| 725 | HFUN(O_EACH); |
| 726 | if (strEQ(d,"exec")) { |
| 727 | set_csh(); |
| 728 | LOP(O_EXEC_OP); |
| 729 | } |
| 730 | if (strEQ(d,"endhostent")) |
| 731 | FUN0(O_EHOSTENT); |
| 732 | if (strEQ(d,"endnetent")) |
| 733 | FUN0(O_ENETENT); |
| 734 | if (strEQ(d,"endservent")) |
| 735 | FUN0(O_ESERVENT); |
| 736 | if (strEQ(d,"endprotoent")) |
| 737 | FUN0(O_EPROTOENT); |
| 738 | if (strEQ(d,"endpwent")) |
| 739 | FUN0(O_EPWENT); |
| 740 | if (strEQ(d,"endgrent")) |
| 741 | FUN0(O_EGRENT); |
| 742 | break; |
| 743 | case 'f': case 'F': |
| 744 | SNARFWORD; |
| 745 | if (strEQ(d,"for") || strEQ(d,"foreach")) { |
| 746 | yylval.ival = curcmd->c_line; |
| 747 | OPERATOR(FOR); |
| 748 | } |
| 749 | if (strEQ(d,"format")) { |
| 750 | d = bufend; |
| 751 | while (s < d && isspace(*s)) |
| 752 | s++; |
| 753 | if (isalpha(*s) || *s == '_') |
| 754 | *(--s) = '\\'; /* force next ident to WORD */ |
| 755 | in_format = TRUE; |
| 756 | allstabs = TRUE; /* must initialize everything since */ |
| 757 | OPERATOR(FORMAT); /* we don't know what will be used */ |
| 758 | } |
| 759 | if (strEQ(d,"fork")) |
| 760 | FUN0(O_FORK); |
| 761 | if (strEQ(d,"fcntl")) |
| 762 | FOP3(O_FCNTL); |
| 763 | if (strEQ(d,"fileno")) |
| 764 | FOP(O_FILENO); |
| 765 | if (strEQ(d,"flock")) |
| 766 | FOP2(O_FLOCK); |
| 767 | break; |
| 768 | case 'g': case 'G': |
| 769 | SNARFWORD; |
| 770 | if (strEQ(d,"gt") || strEQ(d,"GT")) |
| 771 | ROP(O_SGT); |
| 772 | if (strEQ(d,"ge") || strEQ(d,"GE")) |
| 773 | ROP(O_SGE); |
| 774 | if (strEQ(d,"grep")) |
| 775 | FL2(O_GREP); |
| 776 | if (strEQ(d,"goto")) |
| 777 | LOOPX(O_GOTO); |
| 778 | if (strEQ(d,"gmtime")) |
| 779 | UNI(O_GMTIME); |
| 780 | if (strEQ(d,"getc")) |
| 781 | FOP(O_GETC); |
| 782 | if (strnEQ(d,"get",3)) { |
| 783 | d += 3; |
| 784 | if (*d == 'p') { |
| 785 | if (strEQ(d,"ppid")) |
| 786 | FUN0(O_GETPPID); |
| 787 | if (strEQ(d,"pgrp")) |
| 788 | UNI(O_GETPGRP); |
| 789 | if (strEQ(d,"priority")) |
| 790 | FUN2(O_GETPRIORITY); |
| 791 | if (strEQ(d,"protobyname")) |
| 792 | UNI(O_GPBYNAME); |
| 793 | if (strEQ(d,"protobynumber")) |
| 794 | FUN1(O_GPBYNUMBER); |
| 795 | if (strEQ(d,"protoent")) |
| 796 | FUN0(O_GPROTOENT); |
| 797 | if (strEQ(d,"pwent")) |
| 798 | FUN0(O_GPWENT); |
| 799 | if (strEQ(d,"pwnam")) |
| 800 | FUN1(O_GPWNAM); |
| 801 | if (strEQ(d,"pwuid")) |
| 802 | FUN1(O_GPWUID); |
| 803 | if (strEQ(d,"peername")) |
| 804 | FOP(O_GETPEERNAME); |
| 805 | } |
| 806 | else if (*d == 'h') { |
| 807 | if (strEQ(d,"hostbyname")) |
| 808 | UNI(O_GHBYNAME); |
| 809 | if (strEQ(d,"hostbyaddr")) |
| 810 | FUN2(O_GHBYADDR); |
| 811 | if (strEQ(d,"hostent")) |
| 812 | FUN0(O_GHOSTENT); |
| 813 | } |
| 814 | else if (*d == 'n') { |
| 815 | if (strEQ(d,"netbyname")) |
| 816 | UNI(O_GNBYNAME); |
| 817 | if (strEQ(d,"netbyaddr")) |
| 818 | FUN2(O_GNBYADDR); |
| 819 | if (strEQ(d,"netent")) |
| 820 | FUN0(O_GNETENT); |
| 821 | } |
| 822 | else if (*d == 's') { |
| 823 | if (strEQ(d,"servbyname")) |
| 824 | FUN2(O_GSBYNAME); |
| 825 | if (strEQ(d,"servbyport")) |
| 826 | FUN2(O_GSBYPORT); |
| 827 | if (strEQ(d,"servent")) |
| 828 | FUN0(O_GSERVENT); |
| 829 | if (strEQ(d,"sockname")) |
| 830 | FOP(O_GETSOCKNAME); |
| 831 | if (strEQ(d,"sockopt")) |
| 832 | FOP3(O_GSOCKOPT); |
| 833 | } |
| 834 | else if (*d == 'g') { |
| 835 | if (strEQ(d,"grent")) |
| 836 | FUN0(O_GGRENT); |
| 837 | if (strEQ(d,"grnam")) |
| 838 | FUN1(O_GGRNAM); |
| 839 | if (strEQ(d,"grgid")) |
| 840 | FUN1(O_GGRGID); |
| 841 | } |
| 842 | else if (*d == 'l') { |
| 843 | if (strEQ(d,"login")) |
| 844 | FUN0(O_GETLOGIN); |
| 845 | } |
| 846 | d -= 3; |
| 847 | } |
| 848 | break; |
| 849 | case 'h': case 'H': |
| 850 | SNARFWORD; |
| 851 | if (strEQ(d,"hex")) |
| 852 | UNI(O_HEX); |
| 853 | break; |
| 854 | case 'i': case 'I': |
| 855 | SNARFWORD; |
| 856 | if (strEQ(d,"if")) { |
| 857 | yylval.ival = curcmd->c_line; |
| 858 | OPERATOR(IF); |
| 859 | } |
| 860 | if (strEQ(d,"index")) |
| 861 | FUN2x(O_INDEX); |
| 862 | if (strEQ(d,"int")) |
| 863 | UNI(O_INT); |
| 864 | if (strEQ(d,"ioctl")) |
| 865 | FOP3(O_IOCTL); |
| 866 | break; |
| 867 | case 'j': case 'J': |
| 868 | SNARFWORD; |
| 869 | if (strEQ(d,"join")) |
| 870 | FL2(O_JOIN); |
| 871 | break; |
| 872 | case 'k': case 'K': |
| 873 | SNARFWORD; |
| 874 | if (strEQ(d,"keys")) |
| 875 | HFUN(O_KEYS); |
| 876 | if (strEQ(d,"kill")) |
| 877 | LOP(O_KILL); |
| 878 | break; |
| 879 | case 'l': case 'L': |
| 880 | SNARFWORD; |
| 881 | if (strEQ(d,"last")) |
| 882 | LOOPX(O_LAST); |
| 883 | if (strEQ(d,"local")) |
| 884 | OPERATOR(LOCAL); |
| 885 | if (strEQ(d,"length")) |
| 886 | UNI(O_LENGTH); |
| 887 | if (strEQ(d,"lt") || strEQ(d,"LT")) |
| 888 | ROP(O_SLT); |
| 889 | if (strEQ(d,"le") || strEQ(d,"LE")) |
| 890 | ROP(O_SLE); |
| 891 | if (strEQ(d,"localtime")) |
| 892 | UNI(O_LOCALTIME); |
| 893 | if (strEQ(d,"log")) |
| 894 | UNI(O_LOG); |
| 895 | if (strEQ(d,"link")) |
| 896 | FUN2(O_LINK); |
| 897 | if (strEQ(d,"listen")) |
| 898 | FOP2(O_LISTEN); |
| 899 | if (strEQ(d,"lstat")) |
| 900 | FOP(O_LSTAT); |
| 901 | break; |
| 902 | case 'm': case 'M': |
| 903 | if (s[1] == '\'') { |
| 904 | d = "m"; |
| 905 | s++; |
| 906 | } |
| 907 | else { |
| 908 | SNARFWORD; |
| 909 | } |
| 910 | if (strEQ(d,"m")) { |
| 911 | s = scanpat(s-1); |
| 912 | if (yylval.arg) |
| 913 | TERM(PATTERN); |
| 914 | else |
| 915 | RETURN(1); /* force error */ |
| 916 | } |
| 917 | switch (d[1]) { |
| 918 | case 'k': |
| 919 | if (strEQ(d,"mkdir")) |
| 920 | FUN2(O_MKDIR); |
| 921 | break; |
| 922 | case 's': |
| 923 | if (strEQ(d,"msgctl")) |
| 924 | FUN3(O_MSGCTL); |
| 925 | if (strEQ(d,"msgget")) |
| 926 | FUN2(O_MSGGET); |
| 927 | if (strEQ(d,"msgrcv")) |
| 928 | FUN5(O_MSGRCV); |
| 929 | if (strEQ(d,"msgsnd")) |
| 930 | FUN3(O_MSGSND); |
| 931 | break; |
| 932 | } |
| 933 | break; |
| 934 | case 'n': case 'N': |
| 935 | SNARFWORD; |
| 936 | if (strEQ(d,"next")) |
| 937 | LOOPX(O_NEXT); |
| 938 | if (strEQ(d,"ne") || strEQ(d,"NE")) |
| 939 | EOP(O_SNE); |
| 940 | break; |
| 941 | case 'o': case 'O': |
| 942 | SNARFWORD; |
| 943 | if (strEQ(d,"open")) |
| 944 | OPERATOR(OPEN); |
| 945 | if (strEQ(d,"ord")) |
| 946 | UNI(O_ORD); |
| 947 | if (strEQ(d,"oct")) |
| 948 | UNI(O_OCT); |
| 949 | if (strEQ(d,"opendir")) |
| 950 | FOP2(O_OPENDIR); |
| 951 | break; |
| 952 | case 'p': case 'P': |
| 953 | SNARFWORD; |
| 954 | if (strEQ(d,"print")) { |
| 955 | checkcomma(s,"filehandle"); |
| 956 | LOP(O_PRINT); |
| 957 | } |
| 958 | if (strEQ(d,"printf")) { |
| 959 | checkcomma(s,"filehandle"); |
| 960 | LOP(O_PRTF); |
| 961 | } |
| 962 | if (strEQ(d,"push")) { |
| 963 | yylval.ival = O_PUSH; |
| 964 | OPERATOR(PUSH); |
| 965 | } |
| 966 | if (strEQ(d,"pop")) |
| 967 | OPERATOR(POP); |
| 968 | if (strEQ(d,"pack")) |
| 969 | FL2(O_PACK); |
| 970 | if (strEQ(d,"package")) |
| 971 | OPERATOR(PACKAGE); |
| 972 | if (strEQ(d,"pipe")) |
| 973 | FOP22(O_PIPE); |
| 974 | break; |
| 975 | case 'q': case 'Q': |
| 976 | SNARFWORD; |
| 977 | if (strEQ(d,"q")) { |
| 978 | s = scanstr(s-1); |
| 979 | TERM(RSTRING); |
| 980 | } |
| 981 | if (strEQ(d,"qq")) { |
| 982 | s = scanstr(s-2); |
| 983 | TERM(RSTRING); |
| 984 | } |
| 985 | if (strEQ(d,"qx")) { |
| 986 | s = scanstr(s-2); |
| 987 | TERM(RSTRING); |
| 988 | } |
| 989 | break; |
| 990 | case 'r': case 'R': |
| 991 | SNARFWORD; |
| 992 | if (strEQ(d,"return")) |
| 993 | OLDLOP(O_RETURN); |
| 994 | if (strEQ(d,"require")) { |
| 995 | allstabs = TRUE; /* must initialize everything since */ |
| 996 | UNI(O_REQUIRE); /* we don't know what will be used */ |
| 997 | } |
| 998 | if (strEQ(d,"reset")) |
| 999 | UNI(O_RESET); |
| 1000 | if (strEQ(d,"redo")) |
| 1001 | LOOPX(O_REDO); |
| 1002 | if (strEQ(d,"rename")) |
| 1003 | FUN2(O_RENAME); |
| 1004 | if (strEQ(d,"rand")) |
| 1005 | UNI(O_RAND); |
| 1006 | if (strEQ(d,"rmdir")) |
| 1007 | UNI(O_RMDIR); |
| 1008 | if (strEQ(d,"rindex")) |
| 1009 | FUN2x(O_RINDEX); |
| 1010 | if (strEQ(d,"read")) |
| 1011 | FOP3(O_READ); |
| 1012 | if (strEQ(d,"readdir")) |
| 1013 | FOP(O_READDIR); |
| 1014 | if (strEQ(d,"rewinddir")) |
| 1015 | FOP(O_REWINDDIR); |
| 1016 | if (strEQ(d,"recv")) |
| 1017 | FOP4(O_RECV); |
| 1018 | if (strEQ(d,"reverse")) |
| 1019 | LOP(O_REVERSE); |
| 1020 | if (strEQ(d,"readlink")) |
| 1021 | UNI(O_READLINK); |
| 1022 | break; |
| 1023 | case 's': case 'S': |
| 1024 | if (s[1] == '\'') { |
| 1025 | d = "s"; |
| 1026 | s++; |
| 1027 | } |
| 1028 | else { |
| 1029 | SNARFWORD; |
| 1030 | } |
| 1031 | if (strEQ(d,"s")) { |
| 1032 | s = scansubst(s); |
| 1033 | if (yylval.arg) |
| 1034 | TERM(SUBST); |
| 1035 | else |
| 1036 | RETURN(1); /* force error */ |
| 1037 | } |
| 1038 | switch (d[1]) { |
| 1039 | case 'a': |
| 1040 | case 'b': |
| 1041 | break; |
| 1042 | case 'c': |
| 1043 | if (strEQ(d,"scalar")) |
| 1044 | UNI(O_SCALAR); |
| 1045 | break; |
| 1046 | case 'd': |
| 1047 | break; |
| 1048 | case 'e': |
| 1049 | if (strEQ(d,"select")) |
| 1050 | OPERATOR(SSELECT); |
| 1051 | if (strEQ(d,"seek")) |
| 1052 | FOP3(O_SEEK); |
| 1053 | if (strEQ(d,"semctl")) |
| 1054 | FUN4(O_SEMCTL); |
| 1055 | if (strEQ(d,"semget")) |
| 1056 | FUN3(O_SEMGET); |
| 1057 | if (strEQ(d,"semop")) |
| 1058 | FUN2(O_SEMOP); |
| 1059 | if (strEQ(d,"send")) |
| 1060 | FOP3(O_SEND); |
| 1061 | if (strEQ(d,"setpgrp")) |
| 1062 | FUN2(O_SETPGRP); |
| 1063 | if (strEQ(d,"setpriority")) |
| 1064 | FUN3(O_SETPRIORITY); |
| 1065 | if (strEQ(d,"sethostent")) |
| 1066 | FUN1(O_SHOSTENT); |
| 1067 | if (strEQ(d,"setnetent")) |
| 1068 | FUN1(O_SNETENT); |
| 1069 | if (strEQ(d,"setservent")) |
| 1070 | FUN1(O_SSERVENT); |
| 1071 | if (strEQ(d,"setprotoent")) |
| 1072 | FUN1(O_SPROTOENT); |
| 1073 | if (strEQ(d,"setpwent")) |
| 1074 | FUN0(O_SPWENT); |
| 1075 | if (strEQ(d,"setgrent")) |
| 1076 | FUN0(O_SGRENT); |
| 1077 | if (strEQ(d,"seekdir")) |
| 1078 | FOP2(O_SEEKDIR); |
| 1079 | if (strEQ(d,"setsockopt")) |
| 1080 | FOP4(O_SSOCKOPT); |
| 1081 | break; |
| 1082 | case 'f': |
| 1083 | case 'g': |
| 1084 | break; |
| 1085 | case 'h': |
| 1086 | if (strEQ(d,"shift")) |
| 1087 | TERM(SHIFT); |
| 1088 | if (strEQ(d,"shmctl")) |
| 1089 | FUN3(O_SHMCTL); |
| 1090 | if (strEQ(d,"shmget")) |
| 1091 | FUN3(O_SHMGET); |
| 1092 | if (strEQ(d,"shmread")) |
| 1093 | FUN4(O_SHMREAD); |
| 1094 | if (strEQ(d,"shmwrite")) |
| 1095 | FUN4(O_SHMWRITE); |
| 1096 | if (strEQ(d,"shutdown")) |
| 1097 | FOP2(O_SHUTDOWN); |
| 1098 | break; |
| 1099 | case 'i': |
| 1100 | if (strEQ(d,"sin")) |
| 1101 | UNI(O_SIN); |
| 1102 | break; |
| 1103 | case 'j': |
| 1104 | case 'k': |
| 1105 | break; |
| 1106 | case 'l': |
| 1107 | if (strEQ(d,"sleep")) |
| 1108 | UNI(O_SLEEP); |
| 1109 | break; |
| 1110 | case 'm': |
| 1111 | case 'n': |
| 1112 | break; |
| 1113 | case 'o': |
| 1114 | if (strEQ(d,"socket")) |
| 1115 | FOP4(O_SOCKET); |
| 1116 | if (strEQ(d,"socketpair")) |
| 1117 | FOP25(O_SOCKPAIR); |
| 1118 | if (strEQ(d,"sort")) { |
| 1119 | checkcomma(s,"subroutine name"); |
| 1120 | d = bufend; |
| 1121 | while (s < d && isascii(*s) && isspace(*s)) s++; |
| 1122 | if (*s == ';' || *s == ')') /* probably a close */ |
| 1123 | fatal("sort is now a reserved word"); |
| 1124 | if (isascii(*s) && (isalpha(*s) || *s == '_')) { |
| 1125 | for (d = s; isalpha(*d) || isdigit(*d) || *d == '_'; d++) ; |
| 1126 | strncpy(tokenbuf,s,d-s); |
| 1127 | if (strNE(tokenbuf,"keys") && |
| 1128 | strNE(tokenbuf,"values") && |
| 1129 | strNE(tokenbuf,"split") && |
| 1130 | strNE(tokenbuf,"grep") && |
| 1131 | strNE(tokenbuf,"readdir") && |
| 1132 | strNE(tokenbuf,"unpack") && |
| 1133 | strNE(tokenbuf,"do") && |
| 1134 | (d >= bufend || isspace(*d)) ) |
| 1135 | *(--s) = '\\'; /* force next ident to WORD */ |
| 1136 | } |
| 1137 | LOP(O_SORT); |
| 1138 | } |
| 1139 | break; |
| 1140 | case 'p': |
| 1141 | if (strEQ(d,"split")) |
| 1142 | TERM(SPLIT); |
| 1143 | if (strEQ(d,"sprintf")) |
| 1144 | FL(O_SPRINTF); |
| 1145 | if (strEQ(d,"splice")) { |
| 1146 | yylval.ival = O_SPLICE; |
| 1147 | OPERATOR(PUSH); |
| 1148 | } |
| 1149 | break; |
| 1150 | case 'q': |
| 1151 | if (strEQ(d,"sqrt")) |
| 1152 | UNI(O_SQRT); |
| 1153 | break; |
| 1154 | case 'r': |
| 1155 | if (strEQ(d,"srand")) |
| 1156 | UNI(O_SRAND); |
| 1157 | break; |
| 1158 | case 's': |
| 1159 | break; |
| 1160 | case 't': |
| 1161 | if (strEQ(d,"stat")) |
| 1162 | FOP(O_STAT); |
| 1163 | if (strEQ(d,"study")) { |
| 1164 | sawstudy++; |
| 1165 | LFUN(O_STUDY); |
| 1166 | } |
| 1167 | break; |
| 1168 | case 'u': |
| 1169 | if (strEQ(d,"substr")) |
| 1170 | FUN2x(O_SUBSTR); |
| 1171 | if (strEQ(d,"sub")) { |
| 1172 | subline = curcmd->c_line; |
| 1173 | d = bufend; |
| 1174 | while (s < d && isspace(*s)) |
| 1175 | s++; |
| 1176 | if (isalpha(*s) || *s == '_' || *s == '\'') { |
| 1177 | if (perldb) { |
| 1178 | str_sset(subname,curstname); |
| 1179 | str_ncat(subname,"'",1); |
| 1180 | for (d = s+1; |
| 1181 | isalpha(*d) || isdigit(*d) || *d == '_' || *d == '\''; |
| 1182 | d++); |
| 1183 | if (d[-1] == '\'') |
| 1184 | d--; |
| 1185 | str_ncat(subname,s,d-s); |
| 1186 | } |
| 1187 | *(--s) = '\\'; /* force next ident to WORD */ |
| 1188 | } |
| 1189 | else if (perldb) |
| 1190 | str_set(subname,"?"); |
| 1191 | OPERATOR(SUB); |
| 1192 | } |
| 1193 | break; |
| 1194 | case 'v': |
| 1195 | case 'w': |
| 1196 | case 'x': |
| 1197 | break; |
| 1198 | case 'y': |
| 1199 | if (strEQ(d,"system")) { |
| 1200 | set_csh(); |
| 1201 | LOP(O_SYSTEM); |
| 1202 | } |
| 1203 | if (strEQ(d,"symlink")) |
| 1204 | FUN2(O_SYMLINK); |
| 1205 | if (strEQ(d,"syscall")) |
| 1206 | LOP(O_SYSCALL); |
| 1207 | if (strEQ(d,"sysread")) |
| 1208 | FOP3(O_SYSREAD); |
| 1209 | if (strEQ(d,"syswrite")) |
| 1210 | FOP3(O_SYSWRITE); |
| 1211 | break; |
| 1212 | case 'z': |
| 1213 | break; |
| 1214 | } |
| 1215 | break; |
| 1216 | case 't': case 'T': |
| 1217 | SNARFWORD; |
| 1218 | if (strEQ(d,"tr")) { |
| 1219 | s = scantrans(s); |
| 1220 | if (yylval.arg) |
| 1221 | TERM(TRANS); |
| 1222 | else |
| 1223 | RETURN(1); /* force error */ |
| 1224 | } |
| 1225 | if (strEQ(d,"tell")) |
| 1226 | FOP(O_TELL); |
| 1227 | if (strEQ(d,"telldir")) |
| 1228 | FOP(O_TELLDIR); |
| 1229 | if (strEQ(d,"time")) |
| 1230 | FUN0(O_TIME); |
| 1231 | if (strEQ(d,"times")) |
| 1232 | FUN0(O_TMS); |
| 1233 | if (strEQ(d,"truncate")) |
| 1234 | FOP2(O_TRUNCATE); |
| 1235 | break; |
| 1236 | case 'u': case 'U': |
| 1237 | SNARFWORD; |
| 1238 | if (strEQ(d,"using")) |
| 1239 | OPERATOR(USING); |
| 1240 | if (strEQ(d,"until")) { |
| 1241 | yylval.ival = curcmd->c_line; |
| 1242 | OPERATOR(UNTIL); |
| 1243 | } |
| 1244 | if (strEQ(d,"unless")) { |
| 1245 | yylval.ival = curcmd->c_line; |
| 1246 | OPERATOR(UNLESS); |
| 1247 | } |
| 1248 | if (strEQ(d,"unlink")) |
| 1249 | LOP(O_UNLINK); |
| 1250 | if (strEQ(d,"undef")) |
| 1251 | LFUN(O_UNDEF); |
| 1252 | if (strEQ(d,"unpack")) |
| 1253 | FUN2(O_UNPACK); |
| 1254 | if (strEQ(d,"utime")) |
| 1255 | LOP(O_UTIME); |
| 1256 | if (strEQ(d,"umask")) |
| 1257 | UNI(O_UMASK); |
| 1258 | if (strEQ(d,"unshift")) { |
| 1259 | yylval.ival = O_UNSHIFT; |
| 1260 | OPERATOR(PUSH); |
| 1261 | } |
| 1262 | break; |
| 1263 | case 'v': case 'V': |
| 1264 | SNARFWORD; |
| 1265 | if (strEQ(d,"values")) |
| 1266 | HFUN(O_VALUES); |
| 1267 | if (strEQ(d,"vec")) { |
| 1268 | sawvec = TRUE; |
| 1269 | FUN3(O_VEC); |
| 1270 | } |
| 1271 | break; |
| 1272 | case 'w': case 'W': |
| 1273 | SNARFWORD; |
| 1274 | if (strEQ(d,"while")) { |
| 1275 | yylval.ival = curcmd->c_line; |
| 1276 | OPERATOR(WHILE); |
| 1277 | } |
| 1278 | if (strEQ(d,"warn")) |
| 1279 | LOP(O_WARN); |
| 1280 | if (strEQ(d,"wait")) |
| 1281 | FUN0(O_WAIT); |
| 1282 | if (strEQ(d,"waitpid")) |
| 1283 | FUN2(O_WAITPID); |
| 1284 | if (strEQ(d,"wantarray")) { |
| 1285 | yylval.arg = op_new(1); |
| 1286 | yylval.arg->arg_type = O_ITEM; |
| 1287 | yylval.arg[1].arg_type = A_WANTARRAY; |
| 1288 | TERM(RSTRING); |
| 1289 | } |
| 1290 | if (strEQ(d,"write")) |
| 1291 | FOP(O_WRITE); |
| 1292 | break; |
| 1293 | case 'x': case 'X': |
| 1294 | SNARFWORD; |
| 1295 | if (!expectterm && strEQ(d,"x")) |
| 1296 | MOP(O_REPEAT); |
| 1297 | break; |
| 1298 | case 'y': case 'Y': |
| 1299 | if (s[1] == '\'') { |
| 1300 | d = "y"; |
| 1301 | s++; |
| 1302 | } |
| 1303 | else { |
| 1304 | SNARFWORD; |
| 1305 | } |
| 1306 | if (strEQ(d,"y")) { |
| 1307 | s = scantrans(s); |
| 1308 | TERM(TRANS); |
| 1309 | } |
| 1310 | break; |
| 1311 | case 'z': case 'Z': |
| 1312 | SNARFWORD; |
| 1313 | break; |
| 1314 | } |
| 1315 | yylval.cval = savestr(d); |
| 1316 | expectterm = FALSE; |
| 1317 | if (oldoldbufptr && oldoldbufptr < bufptr) { |
| 1318 | while (isspace(*oldoldbufptr)) |
| 1319 | oldoldbufptr++; |
| 1320 | if (*oldoldbufptr == 'p' && strnEQ(oldoldbufptr,"print",5)) |
| 1321 | expectterm = TRUE; |
| 1322 | else if (*oldoldbufptr == 's' && strnEQ(oldoldbufptr,"sort",4)) |
| 1323 | expectterm = TRUE; |
| 1324 | } |
| 1325 | return (CLINE, bufptr = s, (int)WORD); |
| 1326 | } |
| 1327 | |
| 1328 | void |
| 1329 | checkcomma(s,what) |
| 1330 | register char *s; |
| 1331 | char *what; |
| 1332 | { |
| 1333 | char *someword; |
| 1334 | |
| 1335 | if (*s == '(') |
| 1336 | s++; |
| 1337 | while (s < bufend && isascii(*s) && isspace(*s)) |
| 1338 | s++; |
| 1339 | if (isascii(*s) && (isalpha(*s) || *s == '_')) { |
| 1340 | someword = s++; |
| 1341 | while (isalpha(*s) || isdigit(*s) || *s == '_') |
| 1342 | s++; |
| 1343 | while (s < bufend && isspace(*s)) |
| 1344 | s++; |
| 1345 | if (*s == ',') { |
| 1346 | *s = '\0'; |
| 1347 | someword = instr( |
| 1348 | "tell eof times getlogin wait length shift umask getppid \ |
| 1349 | cos exp int log rand sin sqrt ord wantarray", |
| 1350 | someword); |
| 1351 | *s = ','; |
| 1352 | if (someword) |
| 1353 | return; |
| 1354 | fatal("No comma allowed after %s", what); |
| 1355 | } |
| 1356 | } |
| 1357 | } |
| 1358 | |
| 1359 | char * |
| 1360 | scanident(s,send,dest) |
| 1361 | register char *s; |
| 1362 | register char *send; |
| 1363 | char *dest; |
| 1364 | { |
| 1365 | register char *d; |
| 1366 | int brackets = 0; |
| 1367 | |
| 1368 | reparse = Nullch; |
| 1369 | s++; |
| 1370 | d = dest; |
| 1371 | if (isdigit(*s)) { |
| 1372 | while (isdigit(*s)) |
| 1373 | *d++ = *s++; |
| 1374 | } |
| 1375 | else { |
| 1376 | while (isalpha(*s) || isdigit(*s) || *s == '_' || *s == '\'') |
| 1377 | *d++ = *s++; |
| 1378 | } |
| 1379 | while (d > dest+1 && d[-1] == '\'') |
| 1380 | d--,s--; |
| 1381 | *d = '\0'; |
| 1382 | d = dest; |
| 1383 | if (!*d) { |
| 1384 | *d = *s++; |
| 1385 | if (*d == '{' /* } */ ) { |
| 1386 | d = dest; |
| 1387 | brackets++; |
| 1388 | while (s < send && brackets) { |
| 1389 | if (!reparse && (d == dest || (*s && isascii(*s) && |
| 1390 | (isalpha(*s) || isdigit(*s) || *s == '_') ))) { |
| 1391 | *d++ = *s++; |
| 1392 | continue; |
| 1393 | } |
| 1394 | else if (!reparse) |
| 1395 | reparse = s; |
| 1396 | switch (*s++) { |
| 1397 | /* { */ |
| 1398 | case '}': |
| 1399 | brackets--; |
| 1400 | if (reparse && reparse == s - 1) |
| 1401 | reparse = Nullch; |
| 1402 | break; |
| 1403 | case '{': /* } */ |
| 1404 | brackets++; |
| 1405 | break; |
| 1406 | } |
| 1407 | } |
| 1408 | *d = '\0'; |
| 1409 | d = dest; |
| 1410 | } |
| 1411 | else |
| 1412 | d[1] = '\0'; |
| 1413 | } |
| 1414 | if (*d == '^' && (isupper(*s) || index("[\\]^_?",*s))) |
| 1415 | *d = *s++ ^ 64; |
| 1416 | return s; |
| 1417 | } |
| 1418 | |
| 1419 | STR * |
| 1420 | scanconst(string,len) |
| 1421 | char *string; |
| 1422 | int len; |
| 1423 | { |
| 1424 | register STR *retstr; |
| 1425 | register char *t; |
| 1426 | register char *d; |
| 1427 | register char *e; |
| 1428 | |
| 1429 | if (index(string,'|')) { |
| 1430 | return Nullstr; |
| 1431 | } |
| 1432 | retstr = Str_new(86,len); |
| 1433 | str_nset(retstr,string,len); |
| 1434 | t = str_get(retstr); |
| 1435 | e = t + len; |
| 1436 | retstr->str_u.str_useful = 100; |
| 1437 | for (d=t; d < e; ) { |
| 1438 | switch (*d) { |
| 1439 | case '{': |
| 1440 | if (isdigit(d[1])) |
| 1441 | e = d; |
| 1442 | else |
| 1443 | goto defchar; |
| 1444 | break; |
| 1445 | case '.': case '[': case '$': case '(': case ')': case '|': case '+': |
| 1446 | e = d; |
| 1447 | break; |
| 1448 | case '\\': |
| 1449 | if (d[1] && index("wWbB0123456789sSdDlLuUE",d[1])) { |
| 1450 | e = d; |
| 1451 | break; |
| 1452 | } |
| 1453 | (void)bcopy(d+1,d,e-d); |
| 1454 | e--; |
| 1455 | switch(*d) { |
| 1456 | case 'n': |
| 1457 | *d = '\n'; |
| 1458 | break; |
| 1459 | case 't': |
| 1460 | *d = '\t'; |
| 1461 | break; |
| 1462 | case 'f': |
| 1463 | *d = '\f'; |
| 1464 | break; |
| 1465 | case 'r': |
| 1466 | *d = '\r'; |
| 1467 | break; |
| 1468 | case 'e': |
| 1469 | *d = '\033'; |
| 1470 | break; |
| 1471 | case 'a': |
| 1472 | *d = '\007'; |
| 1473 | break; |
| 1474 | } |
| 1475 | /* FALL THROUGH */ |
| 1476 | default: |
| 1477 | defchar: |
| 1478 | if (d[1] == '*' || (d[1] == '{' && d[2] == '0') || d[1] == '?') { |
| 1479 | e = d; |
| 1480 | break; |
| 1481 | } |
| 1482 | d++; |
| 1483 | } |
| 1484 | } |
| 1485 | if (d == t) { |
| 1486 | str_free(retstr); |
| 1487 | return Nullstr; |
| 1488 | } |
| 1489 | *d = '\0'; |
| 1490 | retstr->str_cur = d - t; |
| 1491 | return retstr; |
| 1492 | } |
| 1493 | |
| 1494 | char * |
| 1495 | scanpat(s) |
| 1496 | register char *s; |
| 1497 | { |
| 1498 | register SPAT *spat; |
| 1499 | register char *d; |
| 1500 | register char *e; |
| 1501 | int len; |
| 1502 | SPAT savespat; |
| 1503 | STR *str = Str_new(93,0); |
| 1504 | |
| 1505 | Newz(801,spat,1,SPAT); |
| 1506 | spat->spat_next = curstash->tbl_spatroot; /* link into spat list */ |
| 1507 | curstash->tbl_spatroot = spat; |
| 1508 | |
| 1509 | switch (*s++) { |
| 1510 | case 'm': |
| 1511 | s++; |
| 1512 | break; |
| 1513 | case '/': |
| 1514 | break; |
| 1515 | case '?': |
| 1516 | spat->spat_flags |= SPAT_ONCE; |
| 1517 | break; |
| 1518 | default: |
| 1519 | fatal("panic: scanpat"); |
| 1520 | } |
| 1521 | s = str_append_till(str,s,bufend,s[-1],patleave); |
| 1522 | if (s >= bufend) { |
| 1523 | str_free(str); |
| 1524 | yyerror("Search pattern not terminated"); |
| 1525 | yylval.arg = Nullarg; |
| 1526 | return s; |
| 1527 | } |
| 1528 | s++; |
| 1529 | while (*s == 'i' || *s == 'o') { |
| 1530 | if (*s == 'i') { |
| 1531 | s++; |
| 1532 | sawi = TRUE; |
| 1533 | spat->spat_flags |= SPAT_FOLD; |
| 1534 | } |
| 1535 | if (*s == 'o') { |
| 1536 | s++; |
| 1537 | spat->spat_flags |= SPAT_KEEP; |
| 1538 | } |
| 1539 | } |
| 1540 | len = str->str_cur; |
| 1541 | e = str->str_ptr + len; |
| 1542 | for (d = str->str_ptr; d < e; d++) { |
| 1543 | if (*d == '\\') |
| 1544 | d++; |
| 1545 | else if ((*d == '$' && d[1] && d[1] != '|' && d[1] != ')') || |
| 1546 | (*d == '@')) { |
| 1547 | register ARG *arg; |
| 1548 | |
| 1549 | spat->spat_runtime = arg = op_new(1); |
| 1550 | arg->arg_type = O_ITEM; |
| 1551 | arg[1].arg_type = A_DOUBLE; |
| 1552 | arg[1].arg_ptr.arg_str = str_smake(str); |
| 1553 | d = scanident(d,bufend,buf); |
| 1554 | (void)stabent(buf,TRUE); /* make sure it's created */ |
| 1555 | for (; d < e; d++) { |
| 1556 | if (*d == '\\') |
| 1557 | d++; |
| 1558 | else if (*d == '$' && d[1] && d[1] != '|' && d[1] != ')') { |
| 1559 | d = scanident(d,bufend,buf); |
| 1560 | (void)stabent(buf,TRUE); |
| 1561 | } |
| 1562 | else if (*d == '@') { |
| 1563 | d = scanident(d,bufend,buf); |
| 1564 | if (strEQ(buf,"ARGV") || strEQ(buf,"ENV") || |
| 1565 | strEQ(buf,"SIG") || strEQ(buf,"INC")) |
| 1566 | (void)stabent(buf,TRUE); |
| 1567 | } |
| 1568 | } |
| 1569 | goto got_pat; /* skip compiling for now */ |
| 1570 | } |
| 1571 | } |
| 1572 | if (spat->spat_flags & SPAT_FOLD) |
| 1573 | #ifdef STRUCTCOPY |
| 1574 | savespat = *spat; |
| 1575 | #else |
| 1576 | (void)bcopy((char *)spat, (char *)&savespat, sizeof(SPAT)); |
| 1577 | #endif |
| 1578 | if (*str->str_ptr == '^') { |
| 1579 | spat->spat_short = scanconst(str->str_ptr+1,len-1); |
| 1580 | if (spat->spat_short) { |
| 1581 | spat->spat_slen = spat->spat_short->str_cur; |
| 1582 | if (spat->spat_slen == len - 1) |
| 1583 | spat->spat_flags |= SPAT_ALL; |
| 1584 | } |
| 1585 | } |
| 1586 | else { |
| 1587 | spat->spat_flags |= SPAT_SCANFIRST; |
| 1588 | spat->spat_short = scanconst(str->str_ptr,len); |
| 1589 | if (spat->spat_short) { |
| 1590 | spat->spat_slen = spat->spat_short->str_cur; |
| 1591 | if (spat->spat_slen == len) |
| 1592 | spat->spat_flags |= SPAT_ALL; |
| 1593 | } |
| 1594 | } |
| 1595 | if ((spat->spat_flags & SPAT_ALL) && (spat->spat_flags & SPAT_SCANFIRST)) { |
| 1596 | fbmcompile(spat->spat_short, spat->spat_flags & SPAT_FOLD); |
| 1597 | spat->spat_regexp = regcomp(str->str_ptr,str->str_ptr+len, |
| 1598 | spat->spat_flags & SPAT_FOLD); |
| 1599 | /* Note that this regexp can still be used if someone says |
| 1600 | * something like /a/ && s//b/; so we can't delete it. |
| 1601 | */ |
| 1602 | } |
| 1603 | else { |
| 1604 | if (spat->spat_flags & SPAT_FOLD) |
| 1605 | #ifdef STRUCTCOPY |
| 1606 | *spat = savespat; |
| 1607 | #else |
| 1608 | (void)bcopy((char *)&savespat, (char *)spat, sizeof(SPAT)); |
| 1609 | #endif |
| 1610 | if (spat->spat_short) |
| 1611 | fbmcompile(spat->spat_short, spat->spat_flags & SPAT_FOLD); |
| 1612 | spat->spat_regexp = regcomp(str->str_ptr,str->str_ptr+len, |
| 1613 | spat->spat_flags & SPAT_FOLD); |
| 1614 | hoistmust(spat); |
| 1615 | } |
| 1616 | got_pat: |
| 1617 | str_free(str); |
| 1618 | yylval.arg = make_match(O_MATCH,stab2arg(A_STAB,defstab),spat); |
| 1619 | return s; |
| 1620 | } |
| 1621 | |
| 1622 | char * |
| 1623 | scansubst(s) |
| 1624 | register char *s; |
| 1625 | { |
| 1626 | register SPAT *spat; |
| 1627 | register char *d; |
| 1628 | register char *e; |
| 1629 | int len; |
| 1630 | STR *str = Str_new(93,0); |
| 1631 | |
| 1632 | Newz(802,spat,1,SPAT); |
| 1633 | spat->spat_next = curstash->tbl_spatroot; /* link into spat list */ |
| 1634 | curstash->tbl_spatroot = spat; |
| 1635 | |
| 1636 | s = str_append_till(str,s+1,bufend,*s,patleave); |
| 1637 | if (s >= bufend) { |
| 1638 | str_free(str); |
| 1639 | yyerror("Substitution pattern not terminated"); |
| 1640 | yylval.arg = Nullarg; |
| 1641 | return s; |
| 1642 | } |
| 1643 | len = str->str_cur; |
| 1644 | e = str->str_ptr + len; |
| 1645 | for (d = str->str_ptr; d < e; d++) { |
| 1646 | if (*d == '\\') |
| 1647 | d++; |
| 1648 | else if ((*d == '$' && d[1] && d[1] != '|' && /*(*/ d[1] != ')') || |
| 1649 | *d == '@' ) { |
| 1650 | register ARG *arg; |
| 1651 | |
| 1652 | spat->spat_runtime = arg = op_new(1); |
| 1653 | arg->arg_type = O_ITEM; |
| 1654 | arg[1].arg_type = A_DOUBLE; |
| 1655 | arg[1].arg_ptr.arg_str = str_smake(str); |
| 1656 | d = scanident(d,bufend,buf); |
| 1657 | (void)stabent(buf,TRUE); /* make sure it's created */ |
| 1658 | for (; *d; d++) { |
| 1659 | if (*d == '$' && d[1] && d[-1] != '\\' && d[1] != '|') { |
| 1660 | d = scanident(d,bufend,buf); |
| 1661 | (void)stabent(buf,TRUE); |
| 1662 | } |
| 1663 | else if (*d == '@' && d[-1] != '\\') { |
| 1664 | d = scanident(d,bufend,buf); |
| 1665 | if (strEQ(buf,"ARGV") || strEQ(buf,"ENV") || |
| 1666 | strEQ(buf,"SIG") || strEQ(buf,"INC")) |
| 1667 | (void)stabent(buf,TRUE); |
| 1668 | } |
| 1669 | } |
| 1670 | goto get_repl; /* skip compiling for now */ |
| 1671 | } |
| 1672 | } |
| 1673 | if (*str->str_ptr == '^') { |
| 1674 | spat->spat_short = scanconst(str->str_ptr+1,len-1); |
| 1675 | if (spat->spat_short) |
| 1676 | spat->spat_slen = spat->spat_short->str_cur; |
| 1677 | } |
| 1678 | else { |
| 1679 | spat->spat_flags |= SPAT_SCANFIRST; |
| 1680 | spat->spat_short = scanconst(str->str_ptr,len); |
| 1681 | if (spat->spat_short) |
| 1682 | spat->spat_slen = spat->spat_short->str_cur; |
| 1683 | } |
| 1684 | get_repl: |
| 1685 | s = scanstr(s); |
| 1686 | if (s >= bufend) { |
| 1687 | str_free(str); |
| 1688 | yyerror("Substitution replacement not terminated"); |
| 1689 | yylval.arg = Nullarg; |
| 1690 | return s; |
| 1691 | } |
| 1692 | spat->spat_repl = yylval.arg; |
| 1693 | spat->spat_flags |= SPAT_ONCE; |
| 1694 | if ((spat->spat_repl[1].arg_type & A_MASK) == A_SINGLE) |
| 1695 | spat->spat_flags |= SPAT_CONST; |
| 1696 | else if ((spat->spat_repl[1].arg_type & A_MASK) == A_DOUBLE) { |
| 1697 | STR *tmpstr; |
| 1698 | register char *t; |
| 1699 | |
| 1700 | spat->spat_flags |= SPAT_CONST; |
| 1701 | tmpstr = spat->spat_repl[1].arg_ptr.arg_str; |
| 1702 | e = tmpstr->str_ptr + tmpstr->str_cur; |
| 1703 | for (t = tmpstr->str_ptr; t < e; t++) { |
| 1704 | if (*t == '$' && t[1] && (index("`'&+0123456789",t[1]) || |
| 1705 | (t[1] == '{' /*}*/ && isdigit(t[2])) )) |
| 1706 | spat->spat_flags &= ~SPAT_CONST; |
| 1707 | } |
| 1708 | } |
| 1709 | while (*s == 'g' || *s == 'i' || *s == 'e' || *s == 'o') { |
| 1710 | if (*s == 'e') { |
| 1711 | s++; |
| 1712 | if ((spat->spat_repl[1].arg_type & A_MASK) == A_DOUBLE) |
| 1713 | spat->spat_repl[1].arg_type = A_SINGLE; |
| 1714 | spat->spat_repl = make_op(O_EVAL,2, |
| 1715 | spat->spat_repl, |
| 1716 | Nullarg, |
| 1717 | Nullarg); |
| 1718 | spat->spat_flags &= ~SPAT_CONST; |
| 1719 | } |
| 1720 | if (*s == 'g') { |
| 1721 | s++; |
| 1722 | spat->spat_flags &= ~SPAT_ONCE; |
| 1723 | } |
| 1724 | if (*s == 'i') { |
| 1725 | s++; |
| 1726 | sawi = TRUE; |
| 1727 | spat->spat_flags |= SPAT_FOLD; |
| 1728 | if (!(spat->spat_flags & SPAT_SCANFIRST)) { |
| 1729 | str_free(spat->spat_short); /* anchored opt doesn't do */ |
| 1730 | spat->spat_short = Nullstr; /* case insensitive match */ |
| 1731 | spat->spat_slen = 0; |
| 1732 | } |
| 1733 | } |
| 1734 | if (*s == 'o') { |
| 1735 | s++; |
| 1736 | spat->spat_flags |= SPAT_KEEP; |
| 1737 | } |
| 1738 | } |
| 1739 | if (spat->spat_short && (spat->spat_flags & SPAT_SCANFIRST)) |
| 1740 | fbmcompile(spat->spat_short, spat->spat_flags & SPAT_FOLD); |
| 1741 | if (!spat->spat_runtime) { |
| 1742 | spat->spat_regexp = regcomp(str->str_ptr,str->str_ptr+len, |
| 1743 | spat->spat_flags & SPAT_FOLD); |
| 1744 | hoistmust(spat); |
| 1745 | } |
| 1746 | yylval.arg = make_match(O_SUBST,stab2arg(A_STAB,defstab),spat); |
| 1747 | str_free(str); |
| 1748 | return s; |
| 1749 | } |
| 1750 | |
| 1751 | hoistmust(spat) |
| 1752 | register SPAT *spat; |
| 1753 | { |
| 1754 | if (spat->spat_regexp->regmust) { /* is there a better short-circuit? */ |
| 1755 | if (spat->spat_short && |
| 1756 | str_eq(spat->spat_short,spat->spat_regexp->regmust)) |
| 1757 | { |
| 1758 | if (spat->spat_flags & SPAT_SCANFIRST) { |
| 1759 | str_free(spat->spat_short); |
| 1760 | spat->spat_short = Nullstr; |
| 1761 | } |
| 1762 | else { |
| 1763 | str_free(spat->spat_regexp->regmust); |
| 1764 | spat->spat_regexp->regmust = Nullstr; |
| 1765 | return; |
| 1766 | } |
| 1767 | } |
| 1768 | if (!spat->spat_short || /* promote the better string */ |
| 1769 | ((spat->spat_flags & SPAT_SCANFIRST) && |
| 1770 | (spat->spat_short->str_cur < spat->spat_regexp->regmust->str_cur) )){ |
| 1771 | str_free(spat->spat_short); /* ok if null */ |
| 1772 | spat->spat_short = spat->spat_regexp->regmust; |
| 1773 | spat->spat_regexp->regmust = Nullstr; |
| 1774 | spat->spat_flags |= SPAT_SCANFIRST; |
| 1775 | } |
| 1776 | } |
| 1777 | } |
| 1778 | |
| 1779 | char * |
| 1780 | expand_charset(s,len,retlen) |
| 1781 | register char *s; |
| 1782 | int len; |
| 1783 | int *retlen; |
| 1784 | { |
| 1785 | char t[520]; |
| 1786 | register char *d = t; |
| 1787 | register int i; |
| 1788 | register char *send = s + len; |
| 1789 | |
| 1790 | while (s < send && d - t <= 256) { |
| 1791 | if (s[1] == '-' && s+2 < send) { |
| 1792 | for (i = (s[0] & 0377); i <= (s[2] & 0377); i++) |
| 1793 | *d++ = i; |
| 1794 | s += 3; |
| 1795 | } |
| 1796 | else |
| 1797 | *d++ = *s++; |
| 1798 | } |
| 1799 | *d = '\0'; |
| 1800 | *retlen = d - t; |
| 1801 | return nsavestr(t,d-t); |
| 1802 | } |
| 1803 | |
| 1804 | char * |
| 1805 | scantrans(s) |
| 1806 | register char *s; |
| 1807 | { |
| 1808 | ARG *arg = |
| 1809 | l(make_op(O_TRANS,2,stab2arg(A_STAB,defstab),Nullarg,Nullarg)); |
| 1810 | register char *t; |
| 1811 | register char *r; |
| 1812 | register short *tbl; |
| 1813 | register int i; |
| 1814 | register int j; |
| 1815 | int tlen, rlen; |
| 1816 | int squash; |
| 1817 | int delete; |
| 1818 | int complement; |
| 1819 | |
| 1820 | New(803,tbl,256,short); |
| 1821 | arg[2].arg_type = A_NULL; |
| 1822 | arg[2].arg_ptr.arg_cval = (char*) tbl; |
| 1823 | s = scanstr(s); |
| 1824 | if (s >= bufend) { |
| 1825 | yyerror("Translation pattern not terminated"); |
| 1826 | yylval.arg = Nullarg; |
| 1827 | return s; |
| 1828 | } |
| 1829 | t = expand_charset(yylval.arg[1].arg_ptr.arg_str->str_ptr, |
| 1830 | yylval.arg[1].arg_ptr.arg_str->str_cur,&tlen); |
| 1831 | arg_free(yylval.arg); |
| 1832 | s = scanstr(s-1); |
| 1833 | if (s >= bufend) { |
| 1834 | yyerror("Translation replacement not terminated"); |
| 1835 | yylval.arg = Nullarg; |
| 1836 | return s; |
| 1837 | } |
| 1838 | complement = delete = squash = 0; |
| 1839 | while (*s == 'c' || *s == 'd' || *s == 's') { |
| 1840 | if (*s == 'c') |
| 1841 | complement = 1; |
| 1842 | else if (*s == 'd') |
| 1843 | delete = 2; |
| 1844 | else |
| 1845 | squash = 1; |
| 1846 | s++; |
| 1847 | } |
| 1848 | r = expand_charset(yylval.arg[1].arg_ptr.arg_str->str_ptr, |
| 1849 | yylval.arg[1].arg_ptr.arg_str->str_cur,&rlen); |
| 1850 | arg_free(yylval.arg); |
| 1851 | arg[2].arg_len = delete|squash; |
| 1852 | yylval.arg = arg; |
| 1853 | if (!rlen && !delete) { |
| 1854 | Safefree(r); |
| 1855 | r = t; rlen = tlen; |
| 1856 | } |
| 1857 | if (complement) { |
| 1858 | Zero(tbl, 256, short); |
| 1859 | for (i = 0; i < tlen; i++) |
| 1860 | tbl[t[i] & 0377] = -1; |
| 1861 | for (i = 0, j = 0; i < 256; i++) { |
| 1862 | if (!tbl[i]) { |
| 1863 | if (j >= rlen) { |
| 1864 | if (delete) |
| 1865 | tbl[i] = -2; |
| 1866 | else |
| 1867 | tbl[i] = r[j-1]; |
| 1868 | } |
| 1869 | else |
| 1870 | tbl[i] = r[j++]; |
| 1871 | } |
| 1872 | } |
| 1873 | } |
| 1874 | else { |
| 1875 | for (i = 0; i < 256; i++) |
| 1876 | tbl[i] = -1; |
| 1877 | for (i = 0, j = 0; i < tlen; i++,j++) { |
| 1878 | if (j >= rlen) { |
| 1879 | if (delete) { |
| 1880 | if (tbl[t[i] & 0377] == -1) |
| 1881 | tbl[t[i] & 0377] = -2; |
| 1882 | continue; |
| 1883 | } |
| 1884 | --j; |
| 1885 | } |
| 1886 | if (tbl[t[i] & 0377] == -1) |
| 1887 | tbl[t[i] & 0377] = r[j] & 0377; |
| 1888 | } |
| 1889 | } |
| 1890 | if (r != t) |
| 1891 | Safefree(r); |
| 1892 | Safefree(t); |
| 1893 | return s; |
| 1894 | } |
| 1895 | |
| 1896 | char * |
| 1897 | scanstr(s) |
| 1898 | register char *s; |
| 1899 | { |
| 1900 | register char term; |
| 1901 | register char *d; |
| 1902 | register ARG *arg; |
| 1903 | register char *send; |
| 1904 | register bool makesingle = FALSE; |
| 1905 | register STAB *stab; |
| 1906 | bool alwaysdollar = FALSE; |
| 1907 | bool hereis = FALSE; |
| 1908 | STR *herewas; |
| 1909 | STR *str; |
| 1910 | char *leave = "\\$@nrtfbeacx0123456789[{]}lLuUE"; /* which backslash sequences to keep */ |
| 1911 | int len; |
| 1912 | |
| 1913 | arg = op_new(1); |
| 1914 | yylval.arg = arg; |
| 1915 | arg->arg_type = O_ITEM; |
| 1916 | |
| 1917 | switch (*s) { |
| 1918 | default: /* a substitution replacement */ |
| 1919 | arg[1].arg_type = A_DOUBLE; |
| 1920 | makesingle = TRUE; /* maybe disable runtime scanning */ |
| 1921 | term = *s; |
| 1922 | if (term == '\'') |
| 1923 | leave = Nullch; |
| 1924 | goto snarf_it; |
| 1925 | case '0': |
| 1926 | { |
| 1927 | unsigned long i; |
| 1928 | int shift; |
| 1929 | |
| 1930 | arg[1].arg_type = A_SINGLE; |
| 1931 | if (s[1] == 'x') { |
| 1932 | shift = 4; |
| 1933 | s += 2; |
| 1934 | } |
| 1935 | else if (s[1] == '.') |
| 1936 | goto decimal; |
| 1937 | else |
| 1938 | shift = 3; |
| 1939 | i = 0; |
| 1940 | for (;;) { |
| 1941 | switch (*s) { |
| 1942 | default: |
| 1943 | goto out; |
| 1944 | case '8': case '9': |
| 1945 | if (shift != 4) |
| 1946 | yyerror("Illegal octal digit"); |
| 1947 | /* FALL THROUGH */ |
| 1948 | case '0': case '1': case '2': case '3': case '4': |
| 1949 | case '5': case '6': case '7': |
| 1950 | i <<= shift; |
| 1951 | i += *s++ & 15; |
| 1952 | break; |
| 1953 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| 1954 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| 1955 | if (shift != 4) |
| 1956 | goto out; |
| 1957 | i <<= 4; |
| 1958 | i += (*s++ & 7) + 9; |
| 1959 | break; |
| 1960 | } |
| 1961 | } |
| 1962 | out: |
| 1963 | str = Str_new(92,0); |
| 1964 | str_numset(str,(double)i); |
| 1965 | if (str->str_ptr) { |
| 1966 | Safefree(str->str_ptr); |
| 1967 | str->str_ptr = Nullch; |
| 1968 | str->str_len = str->str_cur = 0; |
| 1969 | } |
| 1970 | arg[1].arg_ptr.arg_str = str; |
| 1971 | } |
| 1972 | break; |
| 1973 | case '1': case '2': case '3': case '4': case '5': |
| 1974 | case '6': case '7': case '8': case '9': case '.': |
| 1975 | decimal: |
| 1976 | arg[1].arg_type = A_SINGLE; |
| 1977 | d = tokenbuf; |
| 1978 | while (isdigit(*s) || *s == '_') { |
| 1979 | if (*s == '_') |
| 1980 | s++; |
| 1981 | else |
| 1982 | *d++ = *s++; |
| 1983 | } |
| 1984 | if (*s == '.' && s[1] && index("0123456789eE ;",s[1])) { |
| 1985 | *d++ = *s++; |
| 1986 | while (isdigit(*s) || *s == '_') { |
| 1987 | if (*s == '_') |
| 1988 | s++; |
| 1989 | else |
| 1990 | *d++ = *s++; |
| 1991 | } |
| 1992 | } |
| 1993 | if (*s && index("eE",*s) && index("+-0123456789",s[1])) { |
| 1994 | *d++ = *s++; |
| 1995 | if (*s == '+' || *s == '-') |
| 1996 | *d++ = *s++; |
| 1997 | while (isdigit(*s)) |
| 1998 | *d++ = *s++; |
| 1999 | } |
| 2000 | *d = '\0'; |
| 2001 | str = Str_new(92,0); |
| 2002 | str_numset(str,atof(tokenbuf)); |
| 2003 | if (str->str_ptr) { |
| 2004 | Safefree(str->str_ptr); |
| 2005 | str->str_ptr = Nullch; |
| 2006 | str->str_len = str->str_cur = 0; |
| 2007 | } |
| 2008 | arg[1].arg_ptr.arg_str = str; |
| 2009 | break; |
| 2010 | case '<': |
| 2011 | if (*++s == '<') { |
| 2012 | hereis = TRUE; |
| 2013 | d = tokenbuf; |
| 2014 | if (!rsfp) |
| 2015 | *d++ = '\n'; |
| 2016 | if (*++s && index("`'\"",*s)) { |
| 2017 | term = *s++; |
| 2018 | s = cpytill(d,s,bufend,term,&len); |
| 2019 | if (s < bufend) |
| 2020 | s++; |
| 2021 | d += len; |
| 2022 | } |
| 2023 | else { |
| 2024 | if (*s == '\\') |
| 2025 | s++, term = '\''; |
| 2026 | else |
| 2027 | term = '"'; |
| 2028 | while (isascii(*s) && (isalpha(*s) || isdigit(*s) || *s == '_')) |
| 2029 | *d++ = *s++; |
| 2030 | } /* assuming tokenbuf won't clobber */ |
| 2031 | *d++ = '\n'; |
| 2032 | *d = '\0'; |
| 2033 | len = d - tokenbuf; |
| 2034 | d = "\n"; |
| 2035 | if (rsfp || !(d=ninstr(s,bufend,d,d+1))) |
| 2036 | herewas = str_make(s,bufend-s); |
| 2037 | else |
| 2038 | s--, herewas = str_make(s,d-s); |
| 2039 | s += herewas->str_cur; |
| 2040 | if (term == '\'') |
| 2041 | goto do_single; |
| 2042 | if (term == '`') |
| 2043 | goto do_back; |
| 2044 | goto do_double; |
| 2045 | } |
| 2046 | d = tokenbuf; |
| 2047 | s = cpytill(d,s,bufend,'>',&len); |
| 2048 | if (s < bufend) |
| 2049 | s++; |
| 2050 | if (*d == '$') d++; |
| 2051 | while (*d && |
| 2052 | (isalpha(*d) || isdigit(*d) || *d == '_' || *d == '\'')) |
| 2053 | d++; |
| 2054 | if (d - tokenbuf != len) { |
| 2055 | d = tokenbuf; |
| 2056 | arg[1].arg_type = A_GLOB; |
| 2057 | d = nsavestr(d,len); |
| 2058 | arg[1].arg_ptr.arg_stab = stab = genstab(); |
| 2059 | stab_io(stab) = stio_new(); |
| 2060 | stab_val(stab) = str_make(d,len); |
| 2061 | Safefree(d); |
| 2062 | set_csh(); |
| 2063 | } |
| 2064 | else { |
| 2065 | d = tokenbuf; |
| 2066 | if (!len) |
| 2067 | (void)strcpy(d,"ARGV"); |
| 2068 | if (*d == '$') { |
| 2069 | arg[1].arg_type = A_INDREAD; |
| 2070 | arg[1].arg_ptr.arg_stab = stabent(d+1,TRUE); |
| 2071 | } |
| 2072 | else { |
| 2073 | arg[1].arg_type = A_READ; |
| 2074 | arg[1].arg_ptr.arg_stab = stabent(d,TRUE); |
| 2075 | if (!stab_io(arg[1].arg_ptr.arg_stab)) |
| 2076 | stab_io(arg[1].arg_ptr.arg_stab) = stio_new(); |
| 2077 | if (strEQ(d,"ARGV")) { |
| 2078 | (void)aadd(arg[1].arg_ptr.arg_stab); |
| 2079 | stab_io(arg[1].arg_ptr.arg_stab)->flags |= |
| 2080 | IOF_ARGV|IOF_START; |
| 2081 | } |
| 2082 | } |
| 2083 | } |
| 2084 | break; |
| 2085 | |
| 2086 | case 'q': |
| 2087 | s++; |
| 2088 | if (*s == 'q') { |
| 2089 | s++; |
| 2090 | goto do_double; |
| 2091 | } |
| 2092 | if (*s == 'x') { |
| 2093 | s++; |
| 2094 | goto do_back; |
| 2095 | } |
| 2096 | /* FALL THROUGH */ |
| 2097 | case '\'': |
| 2098 | do_single: |
| 2099 | term = *s; |
| 2100 | arg[1].arg_type = A_SINGLE; |
| 2101 | leave = Nullch; |
| 2102 | goto snarf_it; |
| 2103 | |
| 2104 | case '"': |
| 2105 | do_double: |
| 2106 | term = *s; |
| 2107 | arg[1].arg_type = A_DOUBLE; |
| 2108 | makesingle = TRUE; /* maybe disable runtime scanning */ |
| 2109 | alwaysdollar = TRUE; /* treat $) and $| as variables */ |
| 2110 | goto snarf_it; |
| 2111 | case '`': |
| 2112 | do_back: |
| 2113 | term = *s; |
| 2114 | arg[1].arg_type = A_BACKTICK; |
| 2115 | set_csh(); |
| 2116 | alwaysdollar = TRUE; /* treat $) and $| as variables */ |
| 2117 | snarf_it: |
| 2118 | { |
| 2119 | STR *tmpstr; |
| 2120 | char *tmps; |
| 2121 | |
| 2122 | multi_start = curcmd->c_line; |
| 2123 | if (hereis) |
| 2124 | multi_open = multi_close = '<'; |
| 2125 | else { |
| 2126 | multi_open = term; |
| 2127 | if (term && (tmps = index("([{< )]}> )]}>",term))) |
| 2128 | term = tmps[5]; |
| 2129 | multi_close = term; |
| 2130 | } |
| 2131 | tmpstr = Str_new(87,80); |
| 2132 | if (hereis) { |
| 2133 | term = *tokenbuf; |
| 2134 | if (!rsfp) { |
| 2135 | d = s; |
| 2136 | while (s < bufend && |
| 2137 | (*s != term || bcmp(s,tokenbuf,len) != 0) ) { |
| 2138 | if (*s++ == '\n') |
| 2139 | curcmd->c_line++; |
| 2140 | } |
| 2141 | if (s >= bufend) { |
| 2142 | curcmd->c_line = multi_start; |
| 2143 | fatal("EOF in string"); |
| 2144 | } |
| 2145 | str_nset(tmpstr,d+1,s-d); |
| 2146 | s += len - 1; |
| 2147 | str_ncat(herewas,s,bufend-s); |
| 2148 | str_replace(linestr,herewas); |
| 2149 | oldoldbufptr = oldbufptr = bufptr = s = str_get(linestr); |
| 2150 | bufend = linestr->str_ptr + linestr->str_cur; |
| 2151 | hereis = FALSE; |
| 2152 | } |
| 2153 | else |
| 2154 | str_nset(tmpstr,"",0); /* avoid "uninitialized" warning */ |
| 2155 | } |
| 2156 | else |
| 2157 | s = str_append_till(tmpstr,s+1,bufend,term,leave); |
| 2158 | while (s >= bufend) { /* multiple line string? */ |
| 2159 | if (!rsfp || |
| 2160 | !(oldoldbufptr = oldbufptr = s = str_gets(linestr, rsfp, 0))) { |
| 2161 | curcmd->c_line = multi_start; |
| 2162 | fatal("EOF in string"); |
| 2163 | } |
| 2164 | curcmd->c_line++; |
| 2165 | if (perldb) { |
| 2166 | STR *str = Str_new(88,0); |
| 2167 | |
| 2168 | str_sset(str,linestr); |
| 2169 | astore(stab_xarray(curcmd->c_filestab), |
| 2170 | (int)curcmd->c_line,str); |
| 2171 | } |
| 2172 | bufend = linestr->str_ptr + linestr->str_cur; |
| 2173 | if (hereis) { |
| 2174 | if (*s == term && bcmp(s,tokenbuf,len) == 0) { |
| 2175 | s = bufend - 1; |
| 2176 | *s = ' '; |
| 2177 | str_scat(linestr,herewas); |
| 2178 | bufend = linestr->str_ptr + linestr->str_cur; |
| 2179 | } |
| 2180 | else { |
| 2181 | s = bufend; |
| 2182 | str_scat(tmpstr,linestr); |
| 2183 | } |
| 2184 | } |
| 2185 | else |
| 2186 | s = str_append_till(tmpstr,s,bufend,term,leave); |
| 2187 | } |
| 2188 | multi_end = curcmd->c_line; |
| 2189 | s++; |
| 2190 | if (tmpstr->str_cur + 5 < tmpstr->str_len) { |
| 2191 | tmpstr->str_len = tmpstr->str_cur + 1; |
| 2192 | Renew(tmpstr->str_ptr, tmpstr->str_len, char); |
| 2193 | } |
| 2194 | if ((arg[1].arg_type & A_MASK) == A_SINGLE) { |
| 2195 | arg[1].arg_ptr.arg_str = tmpstr; |
| 2196 | break; |
| 2197 | } |
| 2198 | tmps = s; |
| 2199 | s = tmpstr->str_ptr; |
| 2200 | send = s + tmpstr->str_cur; |
| 2201 | while (s < send) { /* see if we can make SINGLE */ |
| 2202 | if (*s == '\\' && s[1] && isdigit(s[1]) && !isdigit(s[2]) && |
| 2203 | !alwaysdollar && s[1] != '0') |
| 2204 | *s = '$'; /* grandfather \digit in subst */ |
| 2205 | if ((*s == '$' || *s == '@') && s+1 < send && |
| 2206 | (alwaysdollar || (s[1] != ')' && s[1] != '|'))) { |
| 2207 | makesingle = FALSE; /* force interpretation */ |
| 2208 | } |
| 2209 | else if (*s == '\\' && s+1 < send) { |
| 2210 | if (index("lLuUE",s[1])) |
| 2211 | makesingle = FALSE; |
| 2212 | s++; |
| 2213 | } |
| 2214 | s++; |
| 2215 | } |
| 2216 | s = d = tmpstr->str_ptr; /* assuming shrinkage only */ |
| 2217 | while (s < send) { |
| 2218 | if ((*s == '$' && s+1 < send && |
| 2219 | (alwaysdollar || /*(*/ (s[1] != ')' && s[1] != '|')) ) || |
| 2220 | (*s == '@' && s+1 < send) ) { |
| 2221 | len = scanident(s,send,tokenbuf) - s; |
| 2222 | if (*s == '$' || strEQ(tokenbuf,"ARGV") |
| 2223 | || strEQ(tokenbuf,"ENV") |
| 2224 | || strEQ(tokenbuf,"SIG") |
| 2225 | || strEQ(tokenbuf,"INC") ) |
| 2226 | (void)stabent(tokenbuf,TRUE); /* make sure it exists */ |
| 2227 | while (len--) |
| 2228 | *d++ = *s++; |
| 2229 | continue; |
| 2230 | } |
| 2231 | else if (*s == '\\' && s+1 < send) { |
| 2232 | s++; |
| 2233 | switch (*s) { |
| 2234 | default: |
| 2235 | if (!makesingle && (!leave || (*s && index(leave,*s)))) |
| 2236 | *d++ = '\\'; |
| 2237 | *d++ = *s++; |
| 2238 | continue; |
| 2239 | case '0': case '1': case '2': case '3': |
| 2240 | case '4': case '5': case '6': case '7': |
| 2241 | *d++ = scanoct(s, 3, &len); |
| 2242 | s += len; |
| 2243 | continue; |
| 2244 | case 'x': |
| 2245 | *d++ = scanhex(++s, 2, &len); |
| 2246 | s += len; |
| 2247 | continue; |
| 2248 | case 'c': |
| 2249 | s++; |
| 2250 | *d = *s++; |
| 2251 | if (islower(*d)) |
| 2252 | *d = toupper(*d); |
| 2253 | *d++ ^= 64; |
| 2254 | continue; |
| 2255 | case 'b': |
| 2256 | *d++ = '\b'; |
| 2257 | break; |
| 2258 | case 'n': |
| 2259 | *d++ = '\n'; |
| 2260 | break; |
| 2261 | case 'r': |
| 2262 | *d++ = '\r'; |
| 2263 | break; |
| 2264 | case 'f': |
| 2265 | *d++ = '\f'; |
| 2266 | break; |
| 2267 | case 't': |
| 2268 | *d++ = '\t'; |
| 2269 | break; |
| 2270 | case 'e': |
| 2271 | *d++ = '\033'; |
| 2272 | break; |
| 2273 | case 'a': |
| 2274 | *d++ = '\007'; |
| 2275 | break; |
| 2276 | } |
| 2277 | s++; |
| 2278 | continue; |
| 2279 | } |
| 2280 | *d++ = *s++; |
| 2281 | } |
| 2282 | *d = '\0'; |
| 2283 | |
| 2284 | if ((arg[1].arg_type & A_MASK) == A_DOUBLE && makesingle) |
| 2285 | arg[1].arg_type = A_SINGLE; /* now we can optimize on it */ |
| 2286 | |
| 2287 | tmpstr->str_cur = d - tmpstr->str_ptr; |
| 2288 | arg[1].arg_ptr.arg_str = tmpstr; |
| 2289 | s = tmps; |
| 2290 | break; |
| 2291 | } |
| 2292 | } |
| 2293 | if (hereis) |
| 2294 | str_free(herewas); |
| 2295 | return s; |
| 2296 | } |
| 2297 | |
| 2298 | FCMD * |
| 2299 | load_format() |
| 2300 | { |
| 2301 | FCMD froot; |
| 2302 | FCMD *flinebeg; |
| 2303 | char *eol; |
| 2304 | register FCMD *fprev = &froot; |
| 2305 | register FCMD *fcmd; |
| 2306 | register char *s; |
| 2307 | register char *t; |
| 2308 | register STR *str; |
| 2309 | bool noblank; |
| 2310 | bool repeater; |
| 2311 | |
| 2312 | Zero(&froot, 1, FCMD); |
| 2313 | s = bufptr; |
| 2314 | while (s < bufend || (rsfp && (s = str_gets(linestr,rsfp, 0)) != Nullch)) { |
| 2315 | curcmd->c_line++; |
| 2316 | if (in_eval && !rsfp) { |
| 2317 | eol = index(s,'\n'); |
| 2318 | if (!eol++) |
| 2319 | eol = bufend; |
| 2320 | } |
| 2321 | else |
| 2322 | eol = bufend = linestr->str_ptr + linestr->str_cur; |
| 2323 | if (perldb) { |
| 2324 | STR *tmpstr = Str_new(89,0); |
| 2325 | |
| 2326 | str_nset(tmpstr, s, eol-s); |
| 2327 | astore(stab_xarray(curcmd->c_filestab), (int)curcmd->c_line,tmpstr); |
| 2328 | } |
| 2329 | if (*s == '.') { |
| 2330 | for (t = s+1; *t == ' ' || *t == '\t'; t++) ; |
| 2331 | if (*t == '\n') { |
| 2332 | bufptr = s; |
| 2333 | return froot.f_next; |
| 2334 | } |
| 2335 | } |
| 2336 | if (*s == '#') { |
| 2337 | s = eol; |
| 2338 | continue; |
| 2339 | } |
| 2340 | flinebeg = Nullfcmd; |
| 2341 | noblank = FALSE; |
| 2342 | repeater = FALSE; |
| 2343 | while (s < eol) { |
| 2344 | Newz(804,fcmd,1,FCMD); |
| 2345 | fprev->f_next = fcmd; |
| 2346 | fprev = fcmd; |
| 2347 | for (t=s; t < eol && *t != '@' && *t != '^'; t++) { |
| 2348 | if (*t == '~') { |
| 2349 | noblank = TRUE; |
| 2350 | *t = ' '; |
| 2351 | if (t[1] == '~') { |
| 2352 | repeater = TRUE; |
| 2353 | t[1] = ' '; |
| 2354 | } |
| 2355 | } |
| 2356 | } |
| 2357 | fcmd->f_pre = nsavestr(s, t-s); |
| 2358 | fcmd->f_presize = t-s; |
| 2359 | s = t; |
| 2360 | if (s >= eol) { |
| 2361 | if (noblank) |
| 2362 | fcmd->f_flags |= FC_NOBLANK; |
| 2363 | if (repeater) |
| 2364 | fcmd->f_flags |= FC_REPEAT; |
| 2365 | break; |
| 2366 | } |
| 2367 | if (!flinebeg) |
| 2368 | flinebeg = fcmd; /* start values here */ |
| 2369 | if (*s++ == '^') |
| 2370 | fcmd->f_flags |= FC_CHOP; /* for doing text filling */ |
| 2371 | switch (*s) { |
| 2372 | case '*': |
| 2373 | fcmd->f_type = F_LINES; |
| 2374 | *s = '\0'; |
| 2375 | break; |
| 2376 | case '<': |
| 2377 | fcmd->f_type = F_LEFT; |
| 2378 | while (*s == '<') |
| 2379 | s++; |
| 2380 | break; |
| 2381 | case '>': |
| 2382 | fcmd->f_type = F_RIGHT; |
| 2383 | while (*s == '>') |
| 2384 | s++; |
| 2385 | break; |
| 2386 | case '|': |
| 2387 | fcmd->f_type = F_CENTER; |
| 2388 | while (*s == '|') |
| 2389 | s++; |
| 2390 | break; |
| 2391 | case '#': |
| 2392 | case '.': |
| 2393 | /* Catch the special case @... and handle it as a string |
| 2394 | field. */ |
| 2395 | if (*s == '.' && s[1] == '.') { |
| 2396 | goto default_format; |
| 2397 | } |
| 2398 | fcmd->f_type = F_DECIMAL; |
| 2399 | { |
| 2400 | char *p; |
| 2401 | |
| 2402 | /* Read a format in the form @####.####, where either group |
| 2403 | of ### may be empty, or the final .### may be missing. */ |
| 2404 | while (*s == '#') |
| 2405 | s++; |
| 2406 | if (*s == '.') { |
| 2407 | s++; |
| 2408 | p = s; |
| 2409 | while (*s == '#') |
| 2410 | s++; |
| 2411 | fcmd->f_decimals = s-p; |
| 2412 | fcmd->f_flags |= FC_DP; |
| 2413 | } else { |
| 2414 | fcmd->f_decimals = 0; |
| 2415 | } |
| 2416 | } |
| 2417 | break; |
| 2418 | default: |
| 2419 | default_format: |
| 2420 | fcmd->f_type = F_LEFT; |
| 2421 | break; |
| 2422 | } |
| 2423 | if (fcmd->f_flags & FC_CHOP && *s == '.') { |
| 2424 | fcmd->f_flags |= FC_MORE; |
| 2425 | while (*s == '.') |
| 2426 | s++; |
| 2427 | } |
| 2428 | fcmd->f_size = s-t; |
| 2429 | } |
| 2430 | if (flinebeg) { |
| 2431 | again: |
| 2432 | if (s >= bufend && |
| 2433 | (!rsfp || (s = str_gets(linestr, rsfp, 0)) == Nullch) ) |
| 2434 | goto badform; |
| 2435 | curcmd->c_line++; |
| 2436 | if (in_eval && !rsfp) { |
| 2437 | eol = index(s,'\n'); |
| 2438 | if (!eol++) |
| 2439 | eol = bufend; |
| 2440 | } |
| 2441 | else |
| 2442 | eol = bufend = linestr->str_ptr + linestr->str_cur; |
| 2443 | if (perldb) { |
| 2444 | STR *tmpstr = Str_new(90,0); |
| 2445 | |
| 2446 | str_nset(tmpstr, s, eol-s); |
| 2447 | astore(stab_xarray(curcmd->c_filestab), |
| 2448 | (int)curcmd->c_line,tmpstr); |
| 2449 | } |
| 2450 | if (strnEQ(s,".\n",2)) { |
| 2451 | bufptr = s; |
| 2452 | yyerror("Missing values line"); |
| 2453 | return froot.f_next; |
| 2454 | } |
| 2455 | if (*s == '#') { |
| 2456 | s = eol; |
| 2457 | goto again; |
| 2458 | } |
| 2459 | str = flinebeg->f_unparsed = Str_new(91,eol - s); |
| 2460 | str->str_u.str_hash = curstash; |
| 2461 | str_nset(str,"(",1); |
| 2462 | flinebeg->f_line = curcmd->c_line; |
| 2463 | eol[-1] = '\0'; |
| 2464 | if (!flinebeg->f_next->f_type || index(s, ',')) { |
| 2465 | eol[-1] = '\n'; |
| 2466 | str_ncat(str, s, eol - s - 1); |
| 2467 | str_ncat(str,",$$);",5); |
| 2468 | s = eol; |
| 2469 | } |
| 2470 | else { |
| 2471 | eol[-1] = '\n'; |
| 2472 | while (s < eol && isspace(*s)) |
| 2473 | s++; |
| 2474 | t = s; |
| 2475 | while (s < eol) { |
| 2476 | switch (*s) { |
| 2477 | case ' ': case '\t': case '\n': case ';': |
| 2478 | str_ncat(str, t, s - t); |
| 2479 | str_ncat(str, "," ,1); |
| 2480 | while (s < eol && (isspace(*s) || *s == ';')) |
| 2481 | s++; |
| 2482 | t = s; |
| 2483 | break; |
| 2484 | case '$': |
| 2485 | str_ncat(str, t, s - t); |
| 2486 | t = s; |
| 2487 | s = scanident(s,eol,tokenbuf); |
| 2488 | str_ncat(str, t, s - t); |
| 2489 | t = s; |
| 2490 | if (s < eol && *s && index("$'\"",*s)) |
| 2491 | str_ncat(str, ",", 1); |
| 2492 | break; |
| 2493 | case '"': case '\'': |
| 2494 | str_ncat(str, t, s - t); |
| 2495 | t = s; |
| 2496 | s++; |
| 2497 | while (s < eol && (*s != *t || s[-1] == '\\')) |
| 2498 | s++; |
| 2499 | if (s < eol) |
| 2500 | s++; |
| 2501 | str_ncat(str, t, s - t); |
| 2502 | t = s; |
| 2503 | if (s < eol && *s && index("$'\"",*s)) |
| 2504 | str_ncat(str, ",", 1); |
| 2505 | break; |
| 2506 | default: |
| 2507 | yyerror("Please use commas to separate fields"); |
| 2508 | } |
| 2509 | } |
| 2510 | str_ncat(str,"$$);",4); |
| 2511 | } |
| 2512 | } |
| 2513 | } |
| 2514 | badform: |
| 2515 | bufptr = str_get(linestr); |
| 2516 | yyerror("Format not terminated"); |
| 2517 | return froot.f_next; |
| 2518 | } |
| 2519 | |
| 2520 | set_csh() |
| 2521 | { |
| 2522 | #ifdef CSH |
| 2523 | if (!cshlen) |
| 2524 | cshlen = strlen(cshname); |
| 2525 | #endif |
| 2526 | } |