Annotation of src/usr.bin/mandoc/mandoc.c, Revision 1.77
1.77 ! schwarze 1: /* $OpenBSD: mandoc.c,v 1.76 2018/10/25 01:21:30 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') {
1.76 schwarze 305: if ((*start)[1] == 'W' ||
306: (*start)[1] == 'R') {
307: gly = ESCAPE_FONTCW;
308: break;
309: }
1.37 schwarze 310: /*
1.76 schwarze 311: * Treat other constant-width font modes
1.37 schwarze 312: * just like regular font modes.
313: */
314: (*start)++;
315: (*sz)--;
316: } else {
1.75 schwarze 317: if ((*start)[0] == 'B' && (*start)[1] == 'I')
1.37 schwarze 318: gly = ESCAPE_FONTBI;
319: break;
320: }
1.75 schwarze 321: } else if (*sz != 1) {
322: if (*sz == 0)
323: gly = ESCAPE_FONTPREV;
1.26 schwarze 324: break;
1.75 schwarze 325: }
1.30 schwarze 326:
1.34 schwarze 327: switch (**start) {
1.48 schwarze 328: case '3':
329: case 'B':
1.26 schwarze 330: gly = ESCAPE_FONTBOLD;
331: break;
1.48 schwarze 332: case '2':
333: case 'I':
1.26 schwarze 334: gly = ESCAPE_FONTITALIC;
1.16 schwarze 335: break;
1.48 schwarze 336: case 'P':
1.26 schwarze 337: gly = ESCAPE_FONTPREV;
1.16 schwarze 338: break;
1.48 schwarze 339: case '1':
340: case 'R':
1.26 schwarze 341: gly = ESCAPE_FONTROMAN;
1.1 schwarze 342: break;
343: }
1.16 schwarze 344: break;
1.48 schwarze 345: case ESCAPE_SPECIAL:
1.73 schwarze 346: if (**start == 'c') {
347: if (*sz == 1) {
348: gly = ESCAPE_NOSPACE;
349: break;
350: }
351: if (*sz < 6 || *sz > 7 ||
352: strncmp(*start, "char", 4) != 0 ||
353: (int)strspn(*start + 4, "0123456789") + 4 < *sz)
354: break;
355: c = 0;
356: for (i = 4; i < *sz; i++)
357: c = 10 * c + ((*start)[i] - '0');
358: if (c < 0x21 || (c > 0x7e && c < 0xa0) || c > 0xff)
359: break;
360: *start += 4;
361: *sz -= 4;
362: gly = ESCAPE_NUMBERED;
363: break;
364: }
365:
1.54 schwarze 366: /*
1.55 schwarze 367: * Unicode escapes are defined in groff as \[u0000]
1.54 schwarze 368: * to \[u10FFFF], where the contained value must be
369: * a valid Unicode codepoint. Here, however, only
1.55 schwarze 370: * check the length and range.
1.54 schwarze 371: */
1.55 schwarze 372: if (**start != 'u' || *sz < 5 || *sz > 7)
373: break;
374: if (*sz == 7 && ((*start)[1] != '1' || (*start)[2] != '0'))
375: break;
376: if (*sz == 6 && (*start)[1] == '0')
1.64 schwarze 377: break;
378: if (*sz == 5 && (*start)[1] == 'D' &&
379: strchr("89ABCDEF", (*start)[2]) != NULL)
1.55 schwarze 380: break;
381: if ((int)strspn(*start + 1, "0123456789ABCDEFabcdef")
1.54 schwarze 382: + 1 == *sz)
383: gly = ESCAPE_UNICODE;
1.16 schwarze 384: break;
1.1 schwarze 385: default:
1.16 schwarze 386: break;
1.1 schwarze 387: }
388:
1.62 schwarze 389: return gly;
1.21 schwarze 390: }
391:
392: /*
393: * Parse a quoted or unquoted roff-style request or macro argument.
394: * Return a pointer to the parsed argument, which is either the original
395: * pointer or advanced by one byte in case the argument is quoted.
1.40 schwarze 396: * NUL-terminate the argument in place.
1.21 schwarze 397: * Collapse pairs of quotes inside quoted arguments.
398: * Advance the argument pointer to the next argument,
1.40 schwarze 399: * or to the NUL byte terminating the argument line.
1.21 schwarze 400: */
401: char *
1.25 schwarze 402: mandoc_getarg(struct mparse *parse, char **cpp, int ln, int *pos)
1.21 schwarze 403: {
404: char *start, *cp;
405: int quoted, pairs, white;
406:
407: /* Quoting can only start with a new word. */
408: start = *cpp;
1.26 schwarze 409: quoted = 0;
1.21 schwarze 410: if ('"' == *start) {
411: quoted = 1;
412: start++;
1.48 schwarze 413: }
1.21 schwarze 414:
415: pairs = 0;
416: white = 0;
417: for (cp = start; '\0' != *cp; cp++) {
1.36 schwarze 418:
419: /*
420: * Move the following text left
421: * after quoted quotes and after "\\" and "\t".
422: */
1.21 schwarze 423: if (pairs)
424: cp[-pairs] = cp[0];
1.36 schwarze 425:
1.21 schwarze 426: if ('\\' == cp[0]) {
1.36 schwarze 427: /*
428: * In copy mode, translate double to single
429: * backslashes and backslash-t to literal tabs.
430: */
431: switch (cp[1]) {
1.48 schwarze 432: case 't':
1.36 schwarze 433: cp[0] = '\t';
434: /* FALLTHROUGH */
1.48 schwarze 435: case '\\':
1.21 schwarze 436: pairs++;
437: cp++;
1.36 schwarze 438: break;
1.48 schwarze 439: case ' ':
1.21 schwarze 440: /* Skip escaped blanks. */
1.36 schwarze 441: if (0 == quoted)
442: cp++;
443: break;
444: default:
445: break;
446: }
1.21 schwarze 447: } else if (0 == quoted) {
448: if (' ' == cp[0]) {
449: /* Unescaped blanks end unquoted args. */
450: white = 1;
451: break;
452: }
453: } else if ('"' == cp[0]) {
454: if ('"' == cp[1]) {
455: /* Quoted quotes collapse. */
456: pairs++;
457: cp++;
458: } else {
459: /* Unquoted quotes end quoted args. */
460: quoted = 2;
461: break;
462: }
463: }
464: }
465:
466: /* Quoted argument without a closing quote. */
1.25 schwarze 467: if (1 == quoted)
1.77 ! schwarze 468: mandoc_msg(MANDOCERR_ARG_QUOTE, ln, *pos, NULL);
1.21 schwarze 469:
1.40 schwarze 470: /* NUL-terminate this argument and move to the next one. */
1.21 schwarze 471: if (pairs)
472: cp[-pairs] = '\0';
473: if ('\0' != *cp) {
474: *cp++ = '\0';
475: while (' ' == *cp)
476: cp++;
477: }
1.24 schwarze 478: *pos += (int)(cp - start) + (quoted ? 1 : 0);
1.21 schwarze 479: *cpp = cp;
480:
1.25 schwarze 481: if ('\0' == *cp && (white || ' ' == cp[-1]))
1.77 ! schwarze 482: mandoc_msg(MANDOCERR_SPACE_EOL, ln, *pos, NULL);
1.21 schwarze 483:
1.62 schwarze 484: return start;
1.4 schwarze 485: }
1.5 schwarze 486:
487: static int
488: a2time(time_t *t, const char *fmt, const char *p)
489: {
490: struct tm tm;
491: char *pp;
492:
493: memset(&tm, 0, sizeof(struct tm));
494:
495: pp = strptime(p, fmt, &tm);
496: if (NULL != pp && '\0' == *pp) {
497: *t = mktime(&tm);
1.62 schwarze 498: return 1;
1.5 schwarze 499: }
500:
1.62 schwarze 501: return 0;
1.5 schwarze 502: }
503:
1.22 schwarze 504: static char *
505: time2a(time_t t)
506: {
1.28 schwarze 507: struct tm *tm;
1.23 schwarze 508: char *buf, *p;
509: size_t ssz;
1.22 schwarze 510: int isz;
511:
1.28 schwarze 512: tm = localtime(&t);
1.57 schwarze 513: if (tm == NULL)
1.62 schwarze 514: return NULL;
1.22 schwarze 515:
1.23 schwarze 516: /*
517: * Reserve space:
518: * up to 9 characters for the month (September) + blank
519: * up to 2 characters for the day + comma + blank
520: * 4 characters for the year and a terminating '\0'
521: */
1.66 schwarze 522:
1.23 schwarze 523: p = buf = mandoc_malloc(10 + 4 + 4 + 1);
524:
1.66 schwarze 525: if ((ssz = strftime(p, 10 + 1, "%B ", tm)) == 0)
1.23 schwarze 526: goto fail;
527: p += (int)ssz;
1.22 schwarze 528:
1.66 schwarze 529: /*
530: * The output format is just "%d" here, not "%2d" or "%02d".
531: * That's also the reason why we can't just format the
532: * date as a whole with "%B %e, %Y" or "%B %d, %Y".
533: * Besides, the present approach is less prone to buffer
534: * overflows, in case anybody should ever introduce the bug
535: * of looking at LC_TIME.
536: */
537:
538: if ((isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday)) == -1)
1.23 schwarze 539: goto fail;
1.22 schwarze 540: p += isz;
541:
1.66 schwarze 542: if (strftime(p, 4 + 1, "%Y", tm) == 0)
1.23 schwarze 543: goto fail;
1.62 schwarze 544: return buf;
1.23 schwarze 545:
546: fail:
547: free(buf);
1.62 schwarze 548: return NULL;
1.22 schwarze 549: }
550:
551: char *
1.69 schwarze 552: mandoc_normdate(struct roff_man *man, char *in, int ln, int pos)
1.5 schwarze 553: {
1.71 schwarze 554: char *cp;
1.5 schwarze 555: time_t t;
556:
1.66 schwarze 557: /* No date specified: use today's date. */
558:
559: if (in == NULL || *in == '\0' || strcmp(in, "$" "Mdocdate$") == 0) {
1.77 ! schwarze 560: mandoc_msg(MANDOCERR_DATE_MISSING, ln, pos, NULL);
1.66 schwarze 561: return time2a(time(NULL));
1.22 schwarze 562: }
1.66 schwarze 563:
564: /* Valid mdoc(7) date format. */
565:
566: if (a2time(&t, "$" "Mdocdate: %b %d %Y $", in) ||
1.71 schwarze 567: a2time(&t, "%b %d, %Y", in)) {
568: cp = time2a(t);
569: if (t > time(NULL) + 86400)
1.77 ! schwarze 570: mandoc_msg(MANDOCERR_DATE_FUTURE, ln, pos, "%s", cp);
1.72 schwarze 571: else if (*in != '$' && strcmp(in, cp) != 0)
1.77 ! schwarze 572: mandoc_msg(MANDOCERR_DATE_NORM, ln, pos, "%s", cp);
1.71 schwarze 573: return cp;
574: }
1.66 schwarze 575:
1.69 schwarze 576: /* In man(7), do not warn about the legacy format. */
1.66 schwarze 577:
1.69 schwarze 578: if (a2time(&t, "%Y-%m-%d", in) == 0)
1.77 ! schwarze 579: mandoc_msg(MANDOCERR_DATE_BAD, ln, pos, "%s", in);
1.71 schwarze 580: else if (t > time(NULL) + 86400)
1.77 ! schwarze 581: mandoc_msg(MANDOCERR_DATE_FUTURE, ln, pos, "%s", in);
1.69 schwarze 582: else if (man->macroset == MACROSET_MDOC)
1.77 ! schwarze 583: mandoc_msg(MANDOCERR_DATE_LEGACY, ln, pos, "Dd %s", in);
1.66 schwarze 584:
585: /* Use any non-mdoc(7) date verbatim. */
586:
587: return mandoc_strdup(in);
1.5 schwarze 588: }
589:
1.9 schwarze 590: int
1.43 schwarze 591: mandoc_eos(const char *p, size_t sz)
1.9 schwarze 592: {
1.43 schwarze 593: const char *q;
594: int enclosed, found;
1.9 schwarze 595:
1.10 schwarze 596: if (0 == sz)
1.62 schwarze 597: return 0;
1.9 schwarze 598:
1.11 schwarze 599: /*
600: * End-of-sentence recognition must include situations where
601: * some symbols, such as `)', allow prior EOS punctuation to
1.26 schwarze 602: * propagate outward.
1.11 schwarze 603: */
604:
1.43 schwarze 605: enclosed = found = 0;
1.16 schwarze 606: for (q = p + (int)sz - 1; q >= p; q--) {
1.15 schwarze 607: switch (*q) {
1.48 schwarze 608: case '\"':
609: case '\'':
610: case ']':
611: case ')':
1.15 schwarze 612: if (0 == found)
613: enclosed = 1;
1.11 schwarze 614: break;
1.48 schwarze 615: case '.':
616: case '!':
617: case '?':
1.15 schwarze 618: found = 1;
619: break;
1.11 schwarze 620: default:
1.62 schwarze 621: return found &&
622: (!enclosed || isalnum((unsigned char)*q));
1.11 schwarze 623: }
1.9 schwarze 624: }
625:
1.62 schwarze 626: return found && !enclosed;
1.9 schwarze 627: }
1.26 schwarze 628:
629: /*
630: * Convert a string to a long that may not be <0.
631: * If the string is invalid, or is less than 0, return -1.
632: */
633: int
1.27 schwarze 634: mandoc_strntoi(const char *p, size_t sz, int base)
1.26 schwarze 635: {
636: char buf[32];
637: char *ep;
638: long v;
639:
640: if (sz > 31)
1.62 schwarze 641: return -1;
1.26 schwarze 642:
643: memcpy(buf, p, sz);
644: buf[(int)sz] = '\0';
645:
646: errno = 0;
647: v = strtol(buf, &ep, base);
648:
649: if (buf[0] == '\0' || *ep != '\0')
1.62 schwarze 650: return -1;
1.26 schwarze 651:
1.27 schwarze 652: if (v > INT_MAX)
653: v = INT_MAX;
654: if (v < INT_MIN)
655: v = INT_MIN;
1.26 schwarze 656:
1.62 schwarze 657: return (int)v;
1.26 schwarze 658: }
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