Annotation of src/usr.bin/mandoc/mandoc.c, Revision 1.75
1.75 ! schwarze 1: /* $OpenBSD: mandoc.c,v 1.74 2018/08/16 13:49:40 schwarze Exp $ */
1.1 schwarze 2: /*
1.58 schwarze 3: * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
1.72 schwarze 4: * Copyright (c) 2011-2015, 2017, 2018 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
1.21 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.1 schwarze 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.21 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.1 schwarze 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
1.2 schwarze 18: #include <sys/types.h>
19:
1.1 schwarze 20: #include <assert.h>
21: #include <ctype.h>
1.26 schwarze 22: #include <errno.h>
23: #include <limits.h>
1.1 schwarze 24: #include <stdlib.h>
1.4 schwarze 25: #include <stdio.h>
26: #include <string.h>
1.5 schwarze 27: #include <time.h>
1.1 schwarze 28:
1.69 schwarze 29: #include "mandoc_aux.h"
1.14 schwarze 30: #include "mandoc.h"
1.69 schwarze 31: #include "roff.h"
1.1 schwarze 32: #include "libmandoc.h"
1.22 schwarze 33:
1.14 schwarze 34: static int a2time(time_t *, const char *, const char *);
1.22 schwarze 35: static char *time2a(time_t);
1.5 schwarze 36:
1.26 schwarze 37:
38: enum mandoc_esc
1.44 schwarze 39: mandoc_escape(const char **end, const char **start, int *sz)
1.26 schwarze 40: {
1.34 schwarze 41: const char *local_start;
1.73 schwarze 42: int local_sz, c, i;
1.34 schwarze 43: char term;
1.48 schwarze 44: enum mandoc_esc gly;
1.26 schwarze 45:
1.34 schwarze 46: /*
47: * When the caller doesn't provide return storage,
48: * use local storage.
49: */
50:
51: if (NULL == start)
52: start = &local_start;
53: if (NULL == sz)
54: sz = &local_sz;
55:
56: /*
57: * Beyond the backslash, at least one input character
58: * is part of the escape sequence. With one exception
59: * (see below), that character won't be returned.
60: */
61:
1.26 schwarze 62: gly = ESCAPE_ERROR;
1.34 schwarze 63: *start = ++*end;
64: *sz = 0;
1.33 schwarze 65: term = '\0';
1.26 schwarze 66:
1.34 schwarze 67: switch ((*start)[-1]) {
1.26 schwarze 68: /*
69: * First the glyphs. There are several different forms of
70: * these, but each eventually returns a substring of the glyph
71: * name.
72: */
1.48 schwarze 73: case '(':
1.26 schwarze 74: gly = ESCAPE_SPECIAL;
1.34 schwarze 75: *sz = 2;
1.26 schwarze 76: break;
1.48 schwarze 77: case '[':
1.26 schwarze 78: gly = ESCAPE_SPECIAL;
79: term = ']';
80: break;
1.48 schwarze 81: case 'C':
1.34 schwarze 82: if ('\'' != **start)
1.62 schwarze 83: return ESCAPE_ERROR;
1.34 schwarze 84: *start = ++*end;
1.54 schwarze 85: gly = ESCAPE_SPECIAL;
1.26 schwarze 86: term = '\'';
87: break;
1.41 schwarze 88:
89: /*
90: * Escapes taking no arguments at all.
91: */
1.48 schwarze 92: case 'd':
93: case 'u':
1.61 schwarze 94: case ',':
95: case '/':
1.62 schwarze 96: return ESCAPE_IGNORE;
1.70 schwarze 97: case 'p':
98: return ESCAPE_BREAK;
1.32 schwarze 99:
100: /*
101: * The \z escape is supposed to output the following
1.48 schwarze 102: * character without advancing the cursor position.
1.32 schwarze 103: * Since we are mostly dealing with terminal mode,
104: * let us just skip the next character.
105: */
1.48 schwarze 106: case 'z':
1.62 schwarze 107: return ESCAPE_SKIPCHAR;
1.1 schwarze 108:
1.26 schwarze 109: /*
110: * Handle all triggers matching \X(xy, \Xx, and \X[xxxx], where
111: * 'X' is the trigger. These have opaque sub-strings.
112: */
1.48 schwarze 113: case 'F':
114: case 'g':
115: case 'k':
116: case 'M':
117: case 'm':
118: case 'n':
119: case 'V':
120: case 'Y':
1.29 schwarze 121: gly = ESCAPE_IGNORE;
1.1 schwarze 122: /* FALLTHROUGH */
1.48 schwarze 123: case 'f':
1.26 schwarze 124: if (ESCAPE_ERROR == gly)
125: gly = ESCAPE_FONT;
1.34 schwarze 126: switch (**start) {
1.48 schwarze 127: case '(':
1.34 schwarze 128: *start = ++*end;
129: *sz = 2;
1.26 schwarze 130: break;
1.48 schwarze 131: case '[':
1.34 schwarze 132: *start = ++*end;
1.26 schwarze 133: term = ']';
134: break;
135: default:
1.34 schwarze 136: *sz = 1;
1.26 schwarze 137: break;
138: }
1.74 schwarze 139: break;
140: case '*':
141: if (strncmp(*start, "(.T", 3) != 0)
142: abort();
143: gly = ESCAPE_DEVICE;
144: *start = ++*end;
145: *sz = 2;
1.26 schwarze 146: break;
147:
148: /*
149: * These escapes are of the form \X'Y', where 'X' is the trigger
150: * and 'Y' is any string. These have opaque sub-strings.
1.47 schwarze 151: * The \B and \w escapes are handled in roff.c, roff_res().
1.26 schwarze 152: */
1.48 schwarze 153: case 'A':
154: case 'b':
155: case 'D':
156: case 'R':
157: case 'X':
158: case 'Z':
1.59 schwarze 159: gly = ESCAPE_IGNORE;
160: /* FALLTHROUGH */
161: case 'o':
162: if (**start == '\0')
1.62 schwarze 163: return ESCAPE_ERROR;
1.59 schwarze 164: if (gly == ESCAPE_ERROR)
165: gly = ESCAPE_OVERSTRIKE;
1.46 schwarze 166: term = **start;
1.34 schwarze 167: *start = ++*end;
1.16 schwarze 168: break;
1.26 schwarze 169:
170: /*
171: * These escapes are of the form \X'N', where 'X' is the trigger
172: * and 'N' resolves to a numerical expression.
173: */
1.48 schwarze 174: case 'h':
175: case 'H':
176: case 'L':
177: case 'l':
178: case 'S':
179: case 'v':
180: case 'x':
1.51 schwarze 181: if (strchr(" %&()*+-./0123456789:<=>", **start)) {
1.53 schwarze 182: if ('\0' != **start)
183: ++*end;
1.62 schwarze 184: return ESCAPE_ERROR;
1.51 schwarze 185: }
1.68 schwarze 186: switch ((*start)[-1]) {
187: case 'h':
188: gly = ESCAPE_HORIZ;
189: break;
190: case 'l':
191: gly = ESCAPE_HLINE;
192: break;
193: default:
194: gly = ESCAPE_IGNORE;
195: break;
196: }
1.46 schwarze 197: term = **start;
1.34 schwarze 198: *start = ++*end;
1.26 schwarze 199: break;
1.29 schwarze 200:
201: /*
202: * Special handling for the numbered character escape.
203: * XXX Do any other escapes need similar handling?
204: */
1.48 schwarze 205: case 'N':
1.34 schwarze 206: if ('\0' == **start)
1.62 schwarze 207: return ESCAPE_ERROR;
1.34 schwarze 208: (*end)++;
209: if (isdigit((unsigned char)**start)) {
210: *sz = 1;
1.62 schwarze 211: return ESCAPE_IGNORE;
1.34 schwarze 212: }
213: (*start)++;
1.29 schwarze 214: while (isdigit((unsigned char)**end))
215: (*end)++;
1.34 schwarze 216: *sz = *end - *start;
1.29 schwarze 217: if ('\0' != **end)
218: (*end)++;
1.62 schwarze 219: return ESCAPE_NUMBERED;
1.26 schwarze 220:
1.48 schwarze 221: /*
1.26 schwarze 222: * Sizes get a special category of their own.
223: */
1.48 schwarze 224: case 's':
1.26 schwarze 225: gly = ESCAPE_IGNORE;
1.17 schwarze 226:
1.26 schwarze 227: /* See +/- counts as a sign. */
1.34 schwarze 228: if ('+' == **end || '-' == **end || ASCII_HYPH == **end)
1.58 schwarze 229: *start = ++*end;
1.6 schwarze 230:
1.34 schwarze 231: switch (**end) {
1.48 schwarze 232: case '(':
1.34 schwarze 233: *start = ++*end;
234: *sz = 2;
1.16 schwarze 235: break;
1.48 schwarze 236: case '[':
1.34 schwarze 237: *start = ++*end;
1.33 schwarze 238: term = ']';
1.16 schwarze 239: break;
1.48 schwarze 240: case '\'':
1.34 schwarze 241: *start = ++*end;
1.33 schwarze 242: term = '\'';
1.60 schwarze 243: break;
244: case '3':
245: case '2':
246: case '1':
247: *sz = (*end)[-1] == 's' &&
248: isdigit((unsigned char)(*end)[1]) ? 2 : 1;
1.16 schwarze 249: break;
250: default:
1.34 schwarze 251: *sz = 1;
1.16 schwarze 252: break;
1.6 schwarze 253: }
254:
1.26 schwarze 255: break;
256:
257: /*
258: * Anything else is assumed to be a glyph.
1.34 schwarze 259: * In this case, pass back the character after the backslash.
1.26 schwarze 260: */
261: default:
262: gly = ESCAPE_SPECIAL;
1.34 schwarze 263: *start = --*end;
264: *sz = 1;
1.26 schwarze 265: break;
266: }
267:
268: assert(ESCAPE_ERROR != gly);
269:
270: /*
1.33 schwarze 271: * Read up to the terminating character,
272: * paying attention to nested escapes.
1.26 schwarze 273: */
274:
275: if ('\0' != term) {
1.33 schwarze 276: while (**end != term) {
277: switch (**end) {
1.48 schwarze 278: case '\0':
1.62 schwarze 279: return ESCAPE_ERROR;
1.48 schwarze 280: case '\\':
1.33 schwarze 281: (*end)++;
282: if (ESCAPE_ERROR ==
283: mandoc_escape(end, NULL, NULL))
1.62 schwarze 284: return ESCAPE_ERROR;
1.33 schwarze 285: break;
286: default:
287: (*end)++;
288: break;
289: }
290: }
1.34 schwarze 291: *sz = (*end)++ - *start;
1.33 schwarze 292: } else {
1.34 schwarze 293: assert(*sz > 0);
294: if ((size_t)*sz > strlen(*start))
1.62 schwarze 295: return ESCAPE_ERROR;
1.34 schwarze 296: *end += *sz;
1.26 schwarze 297: }
1.19 schwarze 298:
1.26 schwarze 299: /* Run post-processors. */
1.19 schwarze 300:
1.26 schwarze 301: switch (gly) {
1.48 schwarze 302: case ESCAPE_FONT:
1.75 ! schwarze 303: if (*sz == 2) {
! 304: if (**start == 'C') {
1.37 schwarze 305: /*
306: * Treat constant-width font modes
307: * just like regular font modes.
308: */
309: (*start)++;
310: (*sz)--;
311: } else {
1.75 ! schwarze 312: if ((*start)[0] == 'B' && (*start)[1] == 'I')
1.37 schwarze 313: gly = ESCAPE_FONTBI;
314: break;
315: }
1.75 ! schwarze 316: } else if (*sz != 1) {
! 317: if (*sz == 0)
! 318: gly = ESCAPE_FONTPREV;
1.26 schwarze 319: break;
1.75 ! schwarze 320: }
1.30 schwarze 321:
1.34 schwarze 322: switch (**start) {
1.48 schwarze 323: case '3':
324: case 'B':
1.26 schwarze 325: gly = ESCAPE_FONTBOLD;
326: break;
1.48 schwarze 327: case '2':
328: case 'I':
1.26 schwarze 329: gly = ESCAPE_FONTITALIC;
1.16 schwarze 330: break;
1.48 schwarze 331: case 'P':
1.26 schwarze 332: gly = ESCAPE_FONTPREV;
1.16 schwarze 333: break;
1.48 schwarze 334: case '1':
335: case 'R':
1.26 schwarze 336: gly = ESCAPE_FONTROMAN;
1.1 schwarze 337: break;
338: }
1.16 schwarze 339: break;
1.48 schwarze 340: case ESCAPE_SPECIAL:
1.73 schwarze 341: if (**start == 'c') {
342: if (*sz == 1) {
343: gly = ESCAPE_NOSPACE;
344: break;
345: }
346: if (*sz < 6 || *sz > 7 ||
347: strncmp(*start, "char", 4) != 0 ||
348: (int)strspn(*start + 4, "0123456789") + 4 < *sz)
349: break;
350: c = 0;
351: for (i = 4; i < *sz; i++)
352: c = 10 * c + ((*start)[i] - '0');
353: if (c < 0x21 || (c > 0x7e && c < 0xa0) || c > 0xff)
354: break;
355: *start += 4;
356: *sz -= 4;
357: gly = ESCAPE_NUMBERED;
358: break;
359: }
360:
1.54 schwarze 361: /*
1.55 schwarze 362: * Unicode escapes are defined in groff as \[u0000]
1.54 schwarze 363: * to \[u10FFFF], where the contained value must be
364: * a valid Unicode codepoint. Here, however, only
1.55 schwarze 365: * check the length and range.
1.54 schwarze 366: */
1.55 schwarze 367: if (**start != 'u' || *sz < 5 || *sz > 7)
368: break;
369: if (*sz == 7 && ((*start)[1] != '1' || (*start)[2] != '0'))
370: break;
371: if (*sz == 6 && (*start)[1] == '0')
1.64 schwarze 372: break;
373: if (*sz == 5 && (*start)[1] == 'D' &&
374: strchr("89ABCDEF", (*start)[2]) != NULL)
1.55 schwarze 375: break;
376: if ((int)strspn(*start + 1, "0123456789ABCDEFabcdef")
1.54 schwarze 377: + 1 == *sz)
378: gly = ESCAPE_UNICODE;
1.16 schwarze 379: break;
1.1 schwarze 380: default:
1.16 schwarze 381: break;
1.1 schwarze 382: }
383:
1.62 schwarze 384: return gly;
1.21 schwarze 385: }
386:
387: /*
388: * Parse a quoted or unquoted roff-style request or macro argument.
389: * Return a pointer to the parsed argument, which is either the original
390: * pointer or advanced by one byte in case the argument is quoted.
1.40 schwarze 391: * NUL-terminate the argument in place.
1.21 schwarze 392: * Collapse pairs of quotes inside quoted arguments.
393: * Advance the argument pointer to the next argument,
1.40 schwarze 394: * or to the NUL byte terminating the argument line.
1.21 schwarze 395: */
396: char *
1.25 schwarze 397: mandoc_getarg(struct mparse *parse, char **cpp, int ln, int *pos)
1.21 schwarze 398: {
399: char *start, *cp;
400: int quoted, pairs, white;
401:
402: /* Quoting can only start with a new word. */
403: start = *cpp;
1.26 schwarze 404: quoted = 0;
1.21 schwarze 405: if ('"' == *start) {
406: quoted = 1;
407: start++;
1.48 schwarze 408: }
1.21 schwarze 409:
410: pairs = 0;
411: white = 0;
412: for (cp = start; '\0' != *cp; cp++) {
1.36 schwarze 413:
414: /*
415: * Move the following text left
416: * after quoted quotes and after "\\" and "\t".
417: */
1.21 schwarze 418: if (pairs)
419: cp[-pairs] = cp[0];
1.36 schwarze 420:
1.21 schwarze 421: if ('\\' == cp[0]) {
1.36 schwarze 422: /*
423: * In copy mode, translate double to single
424: * backslashes and backslash-t to literal tabs.
425: */
426: switch (cp[1]) {
1.48 schwarze 427: case 't':
1.36 schwarze 428: cp[0] = '\t';
429: /* FALLTHROUGH */
1.48 schwarze 430: case '\\':
1.21 schwarze 431: pairs++;
432: cp++;
1.36 schwarze 433: break;
1.48 schwarze 434: case ' ':
1.21 schwarze 435: /* Skip escaped blanks. */
1.36 schwarze 436: if (0 == quoted)
437: cp++;
438: break;
439: default:
440: break;
441: }
1.21 schwarze 442: } else if (0 == quoted) {
443: if (' ' == cp[0]) {
444: /* Unescaped blanks end unquoted args. */
445: white = 1;
446: break;
447: }
448: } else if ('"' == cp[0]) {
449: if ('"' == cp[1]) {
450: /* Quoted quotes collapse. */
451: pairs++;
452: cp++;
453: } else {
454: /* Unquoted quotes end quoted args. */
455: quoted = 2;
456: break;
457: }
458: }
459: }
460:
461: /* Quoted argument without a closing quote. */
1.25 schwarze 462: if (1 == quoted)
1.52 schwarze 463: mandoc_msg(MANDOCERR_ARG_QUOTE, parse, ln, *pos, NULL);
1.21 schwarze 464:
1.40 schwarze 465: /* NUL-terminate this argument and move to the next one. */
1.21 schwarze 466: if (pairs)
467: cp[-pairs] = '\0';
468: if ('\0' != *cp) {
469: *cp++ = '\0';
470: while (' ' == *cp)
471: cp++;
472: }
1.24 schwarze 473: *pos += (int)(cp - start) + (quoted ? 1 : 0);
1.21 schwarze 474: *cpp = cp;
475:
1.25 schwarze 476: if ('\0' == *cp && (white || ' ' == cp[-1]))
1.52 schwarze 477: mandoc_msg(MANDOCERR_SPACE_EOL, parse, ln, *pos, NULL);
1.21 schwarze 478:
1.62 schwarze 479: return start;
1.4 schwarze 480: }
1.5 schwarze 481:
482: static int
483: a2time(time_t *t, const char *fmt, const char *p)
484: {
485: struct tm tm;
486: char *pp;
487:
488: memset(&tm, 0, sizeof(struct tm));
489:
490: pp = strptime(p, fmt, &tm);
491: if (NULL != pp && '\0' == *pp) {
492: *t = mktime(&tm);
1.62 schwarze 493: return 1;
1.5 schwarze 494: }
495:
1.62 schwarze 496: return 0;
1.5 schwarze 497: }
498:
1.22 schwarze 499: static char *
500: time2a(time_t t)
501: {
1.28 schwarze 502: struct tm *tm;
1.23 schwarze 503: char *buf, *p;
504: size_t ssz;
1.22 schwarze 505: int isz;
506:
1.28 schwarze 507: tm = localtime(&t);
1.57 schwarze 508: if (tm == NULL)
1.62 schwarze 509: return NULL;
1.22 schwarze 510:
1.23 schwarze 511: /*
512: * Reserve space:
513: * up to 9 characters for the month (September) + blank
514: * up to 2 characters for the day + comma + blank
515: * 4 characters for the year and a terminating '\0'
516: */
1.66 schwarze 517:
1.23 schwarze 518: p = buf = mandoc_malloc(10 + 4 + 4 + 1);
519:
1.66 schwarze 520: if ((ssz = strftime(p, 10 + 1, "%B ", tm)) == 0)
1.23 schwarze 521: goto fail;
522: p += (int)ssz;
1.22 schwarze 523:
1.66 schwarze 524: /*
525: * The output format is just "%d" here, not "%2d" or "%02d".
526: * That's also the reason why we can't just format the
527: * date as a whole with "%B %e, %Y" or "%B %d, %Y".
528: * Besides, the present approach is less prone to buffer
529: * overflows, in case anybody should ever introduce the bug
530: * of looking at LC_TIME.
531: */
532:
533: if ((isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday)) == -1)
1.23 schwarze 534: goto fail;
1.22 schwarze 535: p += isz;
536:
1.66 schwarze 537: if (strftime(p, 4 + 1, "%Y", tm) == 0)
1.23 schwarze 538: goto fail;
1.62 schwarze 539: return buf;
1.23 schwarze 540:
541: fail:
542: free(buf);
1.62 schwarze 543: return NULL;
1.22 schwarze 544: }
545:
546: char *
1.69 schwarze 547: mandoc_normdate(struct roff_man *man, char *in, int ln, int pos)
1.5 schwarze 548: {
1.71 schwarze 549: char *cp;
1.5 schwarze 550: time_t t;
551:
1.66 schwarze 552: /* No date specified: use today's date. */
553:
554: if (in == NULL || *in == '\0' || strcmp(in, "$" "Mdocdate$") == 0) {
1.69 schwarze 555: mandoc_msg(MANDOCERR_DATE_MISSING, man->parse, ln, pos, NULL);
1.66 schwarze 556: return time2a(time(NULL));
1.22 schwarze 557: }
1.66 schwarze 558:
559: /* Valid mdoc(7) date format. */
560:
561: if (a2time(&t, "$" "Mdocdate: %b %d %Y $", in) ||
1.71 schwarze 562: a2time(&t, "%b %d, %Y", in)) {
563: cp = time2a(t);
564: if (t > time(NULL) + 86400)
565: mandoc_msg(MANDOCERR_DATE_FUTURE, man->parse,
1.72 schwarze 566: ln, pos, cp);
567: else if (*in != '$' && strcmp(in, cp) != 0)
568: mandoc_msg(MANDOCERR_DATE_NORM, man->parse,
1.71 schwarze 569: ln, pos, cp);
570: return cp;
571: }
1.66 schwarze 572:
1.69 schwarze 573: /* In man(7), do not warn about the legacy format. */
1.66 schwarze 574:
1.69 schwarze 575: if (a2time(&t, "%Y-%m-%d", in) == 0)
576: mandoc_msg(MANDOCERR_DATE_BAD, man->parse, ln, pos, in);
1.71 schwarze 577: else if (t > time(NULL) + 86400)
578: mandoc_msg(MANDOCERR_DATE_FUTURE, man->parse, ln, pos, in);
1.69 schwarze 579: else if (man->macroset == MACROSET_MDOC)
580: mandoc_vmsg(MANDOCERR_DATE_LEGACY, man->parse,
581: ln, pos, "Dd %s", in);
1.66 schwarze 582:
583: /* Use any non-mdoc(7) date verbatim. */
584:
585: return mandoc_strdup(in);
1.5 schwarze 586: }
587:
1.9 schwarze 588: int
1.43 schwarze 589: mandoc_eos(const char *p, size_t sz)
1.9 schwarze 590: {
1.43 schwarze 591: const char *q;
592: int enclosed, found;
1.9 schwarze 593:
1.10 schwarze 594: if (0 == sz)
1.62 schwarze 595: return 0;
1.9 schwarze 596:
1.11 schwarze 597: /*
598: * End-of-sentence recognition must include situations where
599: * some symbols, such as `)', allow prior EOS punctuation to
1.26 schwarze 600: * propagate outward.
1.11 schwarze 601: */
602:
1.43 schwarze 603: enclosed = found = 0;
1.16 schwarze 604: for (q = p + (int)sz - 1; q >= p; q--) {
1.15 schwarze 605: switch (*q) {
1.48 schwarze 606: case '\"':
607: case '\'':
608: case ']':
609: case ')':
1.15 schwarze 610: if (0 == found)
611: enclosed = 1;
1.11 schwarze 612: break;
1.48 schwarze 613: case '.':
614: case '!':
615: case '?':
1.15 schwarze 616: found = 1;
617: break;
1.11 schwarze 618: default:
1.62 schwarze 619: return found &&
620: (!enclosed || isalnum((unsigned char)*q));
1.11 schwarze 621: }
1.9 schwarze 622: }
623:
1.62 schwarze 624: return found && !enclosed;
1.9 schwarze 625: }
1.26 schwarze 626:
627: /*
628: * Convert a string to a long that may not be <0.
629: * If the string is invalid, or is less than 0, return -1.
630: */
631: int
1.27 schwarze 632: mandoc_strntoi(const char *p, size_t sz, int base)
1.26 schwarze 633: {
634: char buf[32];
635: char *ep;
636: long v;
637:
638: if (sz > 31)
1.62 schwarze 639: return -1;
1.26 schwarze 640:
641: memcpy(buf, p, sz);
642: buf[(int)sz] = '\0';
643:
644: errno = 0;
645: v = strtol(buf, &ep, base);
646:
647: if (buf[0] == '\0' || *ep != '\0')
1.62 schwarze 648: return -1;
1.26 schwarze 649:
1.27 schwarze 650: if (v > INT_MAX)
651: v = INT_MAX;
652: if (v < INT_MIN)
653: v = INT_MIN;
1.26 schwarze 654:
1.62 schwarze 655: return (int)v;
1.26 schwarze 656: }
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