1 /* 2 * Copyright (c) 1989 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Guido van Rossum. 7 * 8 * %sccs.include.redist.c% 9 */ 10 11 #if defined(LIBC_SCCS) && !defined(lint) 12 static char sccsid[] = "@(#)glob.c 5.19 (Berkeley) 02/10/93"; 13 #endif /* LIBC_SCCS and not lint */ 14 15 /* 16 * glob(3) -- a superset of the one defined in POSIX 1003.2. 17 * 18 * The [!...] convention to negate a range is supported (SysV, Posix, ksh). 19 * 20 * Optional extra services, controlled by flags not defined by POSIX: 21 * 22 * GLOB_QUOTE: 23 * Escaping convention: \ inhibits any special meaning the following 24 * character might have (except \ at end of string is retained). 25 * GLOB_MAGCHAR: 26 * Set in gl_flags if pattern contained a globbing character. 27 * GLOB_NOMAGIC: 28 * Same as GLOB_NOCHECK, but it will only append pattern if it did 29 * not contain any magic characters. [Used in csh style globbing] 30 * GLOB_ALTDIRFUNC: 31 * Use alternately specified directory access functions. 32 * GLOB_TILDE: 33 * expand ~user/foo to the /home/dir/of/user/foo 34 * GLOB_BRACE: 35 * expand {1,2}{a,b} to 1a 1b 2a 2b 36 * gl_matchc: 37 * Number of matches in the current invocation of glob. 38 */ 39 40 #include <sys/param.h> 41 #include <sys/stat.h> 42 43 #include <ctype.h> 44 #include <dirent.h> 45 #include <errno.h> 46 #include <glob.h> 47 #include <pwd.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 #include <unistd.h> 52 53 #define DOLLAR '$' 54 #define DOT '.' 55 #define EOS '\0' 56 #define LBRACKET '[' 57 #define NOT '!' 58 #define QUESTION '?' 59 #define QUOTE '\\' 60 #define RANGE '-' 61 #define RBRACKET ']' 62 #define SEP '/' 63 #define STAR '*' 64 #define TILDE '~' 65 #define UNDERSCORE '_' 66 #define LBRACE '{' 67 #define RBRACE '}' 68 #define SLASH '/' 69 #define COMMA ',' 70 71 #ifndef DEBUG 72 73 #define M_QUOTE 0x8000 74 #define M_PROTECT 0x4000 75 #define M_MASK 0xffff 76 #define M_ASCII 0x00ff 77 78 typedef u_short Char; 79 80 #else 81 82 #define M_QUOTE 0x80 83 #define M_PROTECT 0x40 84 #define M_MASK 0xff 85 #define M_ASCII 0x7f 86 87 typedef char Char; 88 89 #endif 90 91 92 #define CHAR(c) ((Char)((c)&M_ASCII)) 93 #define META(c) ((Char)((c)|M_QUOTE)) 94 #define M_ALL META('*') 95 #define M_END META(']') 96 #define M_NOT META('!') 97 #define M_ONE META('?') 98 #define M_RNG META('-') 99 #define M_SET META('[') 100 #define ismeta(c) (((c)&M_QUOTE) != 0) 101 102 103 static int compare __P((const void *, const void *)); 104 static void g_Ctoc __P((const Char *, char *)); 105 static int g_lstat __P((Char *, struct stat *, glob_t *)); 106 static DIR *g_opendir __P((Char *, glob_t *)); 107 static Char *g_strchr __P((Char *, int)); 108 #ifdef notdef 109 static Char *g_strcat __P((Char *, const Char *)); 110 #endif 111 static int g_stat __P((Char *, struct stat *, glob_t *)); 112 static int glob0 __P((const Char *, glob_t *)); 113 static int glob1 __P((Char *, glob_t *)); 114 static int glob2 __P((Char *, Char *, Char *, glob_t *)); 115 static int glob3 __P((Char *, Char *, Char *, Char *, glob_t *)); 116 static int globextend __P((const Char *, glob_t *)); 117 static const Char * globtilde __P((const Char *, Char *, glob_t *)); 118 static int globexp1 __P((const Char *, glob_t *)); 119 static int globexp2 __P((const Char *, const Char *, glob_t *, int *)); 120 static int match __P((Char *, Char *, Char *)); 121 #ifdef DEBUG 122 static void qprintf __P((const char *, Char *)); 123 #endif 124 125 int 126 glob(pattern, flags, errfunc, pglob) 127 const char *pattern; 128 int flags, (*errfunc) __P((const char *, int)); 129 glob_t *pglob; 130 { 131 const u_char *patnext; 132 int c; 133 Char *bufnext, *bufend, patbuf[MAXPATHLEN+1]; 134 135 patnext = (u_char *) pattern; 136 if (!(flags & GLOB_APPEND)) { 137 pglob->gl_pathc = 0; 138 pglob->gl_pathv = NULL; 139 if (!(flags & GLOB_DOOFFS)) 140 pglob->gl_offs = 0; 141 } 142 pglob->gl_flags = flags & ~GLOB_MAGCHAR; 143 pglob->gl_errfunc = errfunc; 144 pglob->gl_matchc = 0; 145 146 bufnext = patbuf; 147 bufend = bufnext + MAXPATHLEN; 148 if (flags & GLOB_QUOTE) { 149 /* Protect the quoted characters. */ 150 while (bufnext < bufend && (c = *patnext++) != EOS) 151 if (c == QUOTE) { 152 if ((c = *patnext++) == EOS) { 153 c = QUOTE; 154 --patnext; 155 } 156 *bufnext++ = c | M_PROTECT; 157 } 158 else 159 *bufnext++ = c; 160 } 161 else 162 while (bufnext < bufend && (c = *patnext++) != EOS) 163 *bufnext++ = c; 164 *bufnext = EOS; 165 166 if (flags & GLOB_BRACE) 167 return globexp1(patbuf, pglob); 168 else 169 return glob0(patbuf, pglob); 170 } 171 172 /* 173 * Expand recursively a glob {} pattern. When there is no more expansion 174 * invoke the standard globbing routine to glob the rest of the magic 175 * characters 176 */ 177 static int globexp1(pattern, pglob) 178 const Char *pattern; 179 glob_t *pglob; 180 { 181 const Char* ptr = pattern; 182 int rv; 183 184 /* Protect a single {}, for find(1), like csh */ 185 if (pattern[0] == LBRACE && pattern[1] == RBRACE && pattern[2] == EOS) 186 return glob0(pattern, pglob); 187 188 while ((ptr = (const Char *) g_strchr((Char *) ptr, LBRACE)) != NULL) 189 if (!globexp2(ptr, pattern, pglob, &rv)) 190 return rv; 191 192 return glob0(pattern, pglob); 193 } 194 195 196 /* 197 * Recursive brace globbing helper. Tries to expand a single brace. 198 * If it succeeds then it invokes globexp1 with the new pattern. 199 * If it fails then it tries to glob the rest of the pattern and returns. 200 */ 201 static int globexp2(ptr, pattern, pglob, rv) 202 const Char *ptr, *pattern; 203 glob_t *pglob; 204 int *rv; 205 { 206 int i; 207 Char *lm, *ls; 208 const Char *pe, *pm, *pl; 209 Char patbuf[MAXPATHLEN + 1]; 210 211 /* copy part up to the brace */ 212 for (lm = patbuf, pm = pattern; pm != ptr; *lm++ = *pm++) 213 continue; 214 ls = lm; 215 216 /* Find the balanced brace */ 217 for (i = 0, pe = ++ptr; *pe; pe++) 218 if (*pe == LBRACKET) { 219 /* Ignore everything between [] */ 220 for (pm = pe++; *pe != RBRACKET && *pe != EOS; pe++) 221 continue; 222 if (*pe == EOS) { 223 /* 224 * We could not find a matching RBRACKET. 225 * Ignore and just look for RBRACE 226 */ 227 pe = pm; 228 } 229 } 230 else if (*pe == LBRACE) 231 i++; 232 else if (*pe == RBRACE) { 233 if (i == 0) 234 break; 235 i--; 236 } 237 238 /* Non matching braces; just glob the pattern */ 239 if (i != 0 || *pe == EOS) { 240 *rv = glob0(patbuf, pglob); 241 return 0; 242 } 243 244 for (i = 0, pl = pm = ptr; pm <= pe; pm++) 245 switch (*pm) { 246 case LBRACKET: 247 /* Ignore everything between [] */ 248 for (pl = pm++; *pm != RBRACKET && *pm != EOS; pm++) 249 continue; 250 if (*pm == EOS) { 251 /* 252 * We could not find a matching RBRACKET. 253 * Ignore and just look for RBRACE 254 */ 255 pm = pl; 256 } 257 break; 258 259 case LBRACE: 260 i++; 261 break; 262 263 case RBRACE: 264 if (i) { 265 i--; 266 break; 267 } 268 /* FALLTHROUGH */ 269 case COMMA: 270 if (i && *pm == COMMA) 271 break; 272 else { 273 /* Append the current string */ 274 for (lm = ls; (pl < pm); *lm++ = *pl++) 275 continue; 276 /* 277 * Append the rest of the pattern after the 278 * closing brace 279 */ 280 for (pl = pe + 1; (*lm++ = *pl++) != EOS;) 281 continue; 282 283 /* Expand the current pattern */ 284 #ifdef DEBUG 285 qprintf("globexp2:", patbuf); 286 #endif 287 *rv = globexp1(patbuf, pglob); 288 289 /* move after the comma, to the next string */ 290 pl = pm + 1; 291 } 292 break; 293 294 default: 295 break; 296 } 297 *rv = 0; 298 return 0; 299 } 300 301 302 303 /* 304 * expand tilde from the passwd file. 305 */ 306 static const Char * 307 globtilde(pattern, patbuf, pglob) 308 const Char *pattern; 309 Char *patbuf; 310 glob_t *pglob; 311 { 312 struct passwd *pwd; 313 char *h; 314 const Char *p; 315 Char *b; 316 317 if (*pattern != TILDE || !(pglob->gl_flags & GLOB_TILDE)) 318 return pattern; 319 320 /* Copy up to the end of the string or / */ 321 for (p = pattern + 1, h = (char *) patbuf; *p && *p != SLASH; 322 *h++ = *p++) 323 continue; 324 325 *h = EOS; 326 327 if (((char *) patbuf)[0] == EOS) { 328 /* 329 * handle a plain ~ or ~/ by expanding $HOME 330 * first and then trying the password file 331 */ 332 if ((h = getenv("HOME")) == NULL) { 333 if ((pwd = getpwuid(getuid())) == NULL) 334 return pattern; 335 else 336 h = pwd->pw_dir; 337 } 338 } 339 else { 340 /* 341 * Expand a ~user 342 */ 343 if ((pwd = getpwnam((char*) patbuf)) == NULL) 344 return pattern; 345 else 346 h = pwd->pw_dir; 347 } 348 349 /* Copy the home directory */ 350 for (b = patbuf; *h; *b++ = *h++) 351 continue; 352 353 /* Append the rest of the pattern */ 354 while ((*b++ = *p++) != EOS) 355 continue; 356 357 return patbuf; 358 } 359 360 361 /* 362 * The main glob() routine: compiles the pattern (optionally processing 363 * quotes), calls glob1() to do the real pattern matching, and finally 364 * sorts the list (unless unsorted operation is requested). Returns 0 365 * if things went well, nonzero if errors occurred. It is not an error 366 * to find no matches. 367 */ 368 static int 369 glob0(pattern, pglob) 370 const Char *pattern; 371 glob_t *pglob; 372 { 373 const Char *qpatnext; 374 int c, err, oldpathc; 375 Char *bufnext, *bufend, patbuf[MAXPATHLEN+1]; 376 377 qpatnext = globtilde(pattern, patbuf, pglob); 378 379 oldpathc = pglob->gl_pathc; 380 pglob->gl_matchc = 0; 381 382 bufnext = patbuf; 383 bufend = bufnext + MAXPATHLEN; 384 385 /* We don't need to check for buffer overflow any more. */ 386 while ((c = *qpatnext++) != EOS) { 387 switch (c) { 388 case LBRACKET: 389 c = *qpatnext; 390 if (c == NOT) 391 ++qpatnext; 392 if (*qpatnext == EOS || 393 g_strchr((Char *) qpatnext+1, RBRACKET) == NULL) { 394 *bufnext++ = LBRACKET; 395 if (c == NOT) 396 --qpatnext; 397 break; 398 } 399 *bufnext++ = M_SET; 400 if (c == NOT) 401 *bufnext++ = M_NOT; 402 c = *qpatnext++; 403 do { 404 *bufnext++ = CHAR(c); 405 if (*qpatnext == RANGE && 406 (c = qpatnext[1]) != RBRACKET) { 407 *bufnext++ = M_RNG; 408 *bufnext++ = CHAR(c); 409 qpatnext += 2; 410 } 411 } while ((c = *qpatnext++) != RBRACKET); 412 pglob->gl_flags |= GLOB_MAGCHAR; 413 *bufnext++ = M_END; 414 break; 415 case QUESTION: 416 pglob->gl_flags |= GLOB_MAGCHAR; 417 *bufnext++ = M_ONE; 418 break; 419 case STAR: 420 pglob->gl_flags |= GLOB_MAGCHAR; 421 /* collapse adjacent stars to one, 422 * to avoid exponential behavior 423 */ 424 if (bufnext == patbuf || bufnext[-1] != M_ALL) 425 *bufnext++ = M_ALL; 426 break; 427 default: 428 *bufnext++ = CHAR(c); 429 break; 430 } 431 } 432 *bufnext = EOS; 433 #ifdef DEBUG 434 qprintf("glob0:", patbuf); 435 #endif 436 437 if ((err = glob1(patbuf, pglob)) != 0) 438 return(err); 439 440 /* 441 * If there was no match we are going to append the pattern 442 * if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was specified 443 * and the pattern did not contain any magic characters 444 * GLOB_NOMAGIC is there just for compatibility with csh. 445 */ 446 if (pglob->gl_pathc == oldpathc && 447 ((pglob->gl_flags & GLOB_NOCHECK) || 448 ((pglob->gl_flags & (GLOB_NOMAGIC|GLOB_BRACE|GLOB_TILDE)) || 449 !(pglob->gl_flags & GLOB_MAGCHAR)))) 450 return(globextend(pattern, pglob)); 451 else if (!(pglob->gl_flags & GLOB_NOSORT)) 452 qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc, 453 pglob->gl_pathc - oldpathc, sizeof(char *), compare); 454 return(0); 455 } 456 457 static int 458 compare(p, q) 459 const void *p, *q; 460 { 461 return(strcmp(*(char **)p, *(char **)q)); 462 } 463 464 static int 465 glob1(pattern, pglob) 466 Char *pattern; 467 glob_t *pglob; 468 { 469 Char pathbuf[MAXPATHLEN+1]; 470 471 /* A null pathname is invalid -- POSIX 1003.1 sect. 2.4. */ 472 if (*pattern == EOS) 473 return(0); 474 return(glob2(pathbuf, pathbuf, pattern, pglob)); 475 } 476 477 /* 478 * The functions glob2 and glob3 are mutually recursive; there is one level 479 * of recursion for each segment in the pattern that contains one or more 480 * meta characters. 481 */ 482 static int 483 glob2(pathbuf, pathend, pattern, pglob) 484 Char *pathbuf, *pathend, *pattern; 485 glob_t *pglob; 486 { 487 struct stat sb; 488 Char *p, *q; 489 int anymeta; 490 491 /* 492 * Loop over pattern segments until end of pattern or until 493 * segment with meta character found. 494 */ 495 for (anymeta = 0;;) { 496 if (*pattern == EOS) { /* End of pattern? */ 497 *pathend = EOS; 498 if (g_lstat(pathbuf, &sb, pglob)) 499 return(0); 500 501 if (((pglob->gl_flags & GLOB_MARK) && 502 pathend[-1] != SEP) && (S_ISDIR(sb.st_mode) 503 || (S_ISLNK(sb.st_mode) && 504 (g_stat(pathbuf, &sb, pglob) == 0) && 505 S_ISDIR(sb.st_mode)))) { 506 *pathend++ = SEP; 507 *pathend = EOS; 508 } 509 ++pglob->gl_matchc; 510 return(globextend(pathbuf, pglob)); 511 } 512 513 /* Find end of next segment, copy tentatively to pathend. */ 514 q = pathend; 515 p = pattern; 516 while (*p != EOS && *p != SEP) { 517 if (ismeta(*p)) 518 anymeta = 1; 519 *q++ = *p++; 520 } 521 522 if (!anymeta) { /* No expansion, do next segment. */ 523 pathend = q; 524 pattern = p; 525 while (*pattern == SEP) 526 *pathend++ = *pattern++; 527 } else /* Need expansion, recurse. */ 528 return(glob3(pathbuf, pathend, pattern, p, pglob)); 529 } 530 /* NOTREACHED */ 531 } 532 533 static int 534 glob3(pathbuf, pathend, pattern, restpattern, pglob) 535 Char *pathbuf, *pathend, *pattern, *restpattern; 536 glob_t *pglob; 537 { 538 register struct dirent *dp; 539 DIR *dirp; 540 int err; 541 char buf[MAXPATHLEN]; 542 543 /* 544 * The readdirfunc declaration can't be prototyped, because it is 545 * assigned, below, to two functions which are prototyped in glob.h 546 * and dirent.h as taking pointers to differently typed opaque 547 * structures. 548 */ 549 struct dirent *(*readdirfunc)(); 550 551 *pathend = EOS; 552 errno = 0; 553 554 if ((dirp = g_opendir(pathbuf, pglob)) == NULL) { 555 /* TODO: don't call for ENOENT or ENOTDIR? */ 556 if (pglob->gl_errfunc) { 557 g_Ctoc(pathbuf, buf); 558 if (pglob->gl_errfunc(buf, errno) || 559 pglob->gl_flags & GLOB_ERR) 560 return (GLOB_ABEND); 561 } 562 return(0); 563 } 564 565 err = 0; 566 567 /* Search directory for matching names. */ 568 if (pglob->gl_flags & GLOB_ALTDIRFUNC) 569 readdirfunc = pglob->gl_readdir; 570 else 571 readdirfunc = readdir; 572 while ((dp = (*readdirfunc)(dirp))) { 573 register u_char *sc; 574 register Char *dc; 575 576 /* Initial DOT must be matched literally. */ 577 if (dp->d_name[0] == DOT && *pattern != DOT) 578 continue; 579 for (sc = (u_char *) dp->d_name, dc = pathend; 580 (*dc++ = *sc++) != EOS;) 581 continue; 582 if (!match(pathend, pattern, restpattern)) { 583 *pathend = EOS; 584 continue; 585 } 586 err = glob2(pathbuf, --dc, restpattern, pglob); 587 if (err) 588 break; 589 } 590 591 if (pglob->gl_flags & GLOB_ALTDIRFUNC) 592 (*pglob->gl_closedir)(dirp); 593 else 594 closedir(dirp); 595 return(err); 596 } 597 598 599 /* 600 * Extend the gl_pathv member of a glob_t structure to accomodate a new item, 601 * add the new item, and update gl_pathc. 602 * 603 * This assumes the BSD realloc, which only copies the block when its size 604 * crosses a power-of-two boundary; for v7 realloc, this would cause quadratic 605 * behavior. 606 * 607 * Return 0 if new item added, error code if memory couldn't be allocated. 608 * 609 * Invariant of the glob_t structure: 610 * Either gl_pathc is zero and gl_pathv is NULL; or gl_pathc > 0 and 611 * gl_pathv points to (gl_offs + gl_pathc + 1) items. 612 */ 613 static int 614 globextend(path, pglob) 615 const Char *path; 616 glob_t *pglob; 617 { 618 register char **pathv; 619 register int i; 620 u_int newsize; 621 char *copy; 622 const Char *p; 623 624 newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs); 625 pathv = pglob->gl_pathv ? 626 realloc((char *)pglob->gl_pathv, newsize) : 627 malloc(newsize); 628 if (pathv == NULL) 629 return(GLOB_NOSPACE); 630 631 if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) { 632 /* first time around -- clear initial gl_offs items */ 633 pathv += pglob->gl_offs; 634 for (i = pglob->gl_offs; --i >= 0; ) 635 *--pathv = NULL; 636 } 637 pglob->gl_pathv = pathv; 638 639 for (p = path; *p++;) 640 continue; 641 if ((copy = malloc(p - path)) != NULL) { 642 g_Ctoc(path, copy); 643 pathv[pglob->gl_offs + pglob->gl_pathc++] = copy; 644 } 645 pathv[pglob->gl_offs + pglob->gl_pathc] = NULL; 646 return(copy == NULL ? GLOB_NOSPACE : 0); 647 } 648 649 650 /* 651 * pattern matching function for filenames. Each occurrence of the * 652 * pattern causes a recursion level. 653 */ 654 static int 655 match(name, pat, patend) 656 register Char *name, *pat, *patend; 657 { 658 int ok, negate_range; 659 Char c, k; 660 661 while (pat < patend) { 662 c = *pat++; 663 switch (c & M_MASK) { 664 case M_ALL: 665 if (pat == patend) 666 return(1); 667 do 668 if (match(name, pat, patend)) 669 return(1); 670 while (*name++ != EOS); 671 return(0); 672 case M_ONE: 673 if (*name++ == EOS) 674 return(0); 675 break; 676 case M_SET: 677 ok = 0; 678 if ((k = *name++) == EOS) 679 return(0); 680 if ((negate_range = ((*pat & M_MASK) == M_NOT)) != EOS) 681 ++pat; 682 while (((c = *pat++) & M_MASK) != M_END) 683 if ((*pat & M_MASK) == M_RNG) { 684 if (c <= k && k <= pat[1]) 685 ok = 1; 686 pat += 2; 687 } else if (c == k) 688 ok = 1; 689 if (ok == negate_range) 690 return(0); 691 break; 692 default: 693 if (*name++ != c) 694 return(0); 695 break; 696 } 697 } 698 return(*name == EOS); 699 } 700 701 /* Free allocated data belonging to a glob_t structure. */ 702 void 703 globfree(pglob) 704 glob_t *pglob; 705 { 706 register int i; 707 register char **pp; 708 709 if (pglob->gl_pathv != NULL) { 710 pp = pglob->gl_pathv + pglob->gl_offs; 711 for (i = pglob->gl_pathc; i--; ++pp) 712 if (*pp) 713 free(*pp); 714 free(pglob->gl_pathv); 715 } 716 } 717 718 static DIR * 719 g_opendir(str, pglob) 720 register Char *str; 721 glob_t *pglob; 722 { 723 char buf[MAXPATHLEN]; 724 725 if (!*str) 726 strcpy(buf, "."); 727 else 728 g_Ctoc(str, buf); 729 730 if (pglob->gl_flags & GLOB_ALTDIRFUNC) 731 return((*pglob->gl_opendir)(buf)); 732 733 return(opendir(buf)); 734 } 735 736 static int 737 g_lstat(fn, sb, pglob) 738 register Char *fn; 739 struct stat *sb; 740 glob_t *pglob; 741 { 742 char buf[MAXPATHLEN]; 743 744 g_Ctoc(fn, buf); 745 if (pglob->gl_flags & GLOB_ALTDIRFUNC) 746 return((*pglob->gl_lstat)(buf, sb)); 747 return(lstat(buf, sb)); 748 } 749 750 static int 751 g_stat(fn, sb, pglob) 752 register Char *fn; 753 struct stat *sb; 754 glob_t *pglob; 755 { 756 char buf[MAXPATHLEN]; 757 758 g_Ctoc(fn, buf); 759 if (pglob->gl_flags & GLOB_ALTDIRFUNC) 760 return((*pglob->gl_stat)(buf, sb)); 761 return(stat(buf, sb)); 762 } 763 764 static Char * 765 g_strchr(str, ch) 766 Char *str; 767 int ch; 768 { 769 do { 770 if (*str == ch) 771 return (str); 772 } while (*str++); 773 return (NULL); 774 } 775 776 #ifdef notdef 777 static Char * 778 g_strcat(dst, src) 779 Char *dst; 780 const Char* src; 781 { 782 Char *sdst = dst; 783 784 while (*dst++) 785 continue; 786 --dst; 787 while((*dst++ = *src++) != EOS) 788 continue; 789 790 return (sdst); 791 } 792 #endif 793 794 static void 795 g_Ctoc(str, buf) 796 register const Char *str; 797 char *buf; 798 { 799 register char *dc; 800 801 for (dc = buf; (*dc++ = *str++) != EOS;) 802 continue; 803 } 804 805 #ifdef DEBUG 806 static void 807 qprintf(str, s) 808 const char *str; 809 register Char *s; 810 { 811 register Char *p; 812 813 (void)printf("%s:\n", str); 814 for (p = s; *p; p++) 815 (void)printf("%c", CHAR(*p)); 816 (void)printf("\n"); 817 for (p = s; *p; p++) 818 (void)printf("%c", *p & M_PROTECT ? '"' : ' '); 819 (void)printf("\n"); 820 for (p = s; *p; p++) 821 (void)printf("%c", ismeta(*p) ? '_' : ' '); 822 (void)printf("\n"); 823 } 824 #endif 825