Annotation of mandoc/mdoc.c, Revision 1.74
1.74 ! kristaps 1: /* $Id: mdoc.c,v 1.73 2009/03/31 13:50:19 kristaps Exp $ */
1.1 kristaps 2: /*
1.66 kristaps 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@openbsd.org>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the
7: * above copyright notice and this permission notice appear in all
8: * copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11: * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12: * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13: * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16: * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17: * PERFORMANCE OF THIS SOFTWARE.
18: */
19: #include <assert.h>
20: #include <ctype.h>
21: #include <stdarg.h>
1.73 kristaps 22: #include <stdio.h>
1.1 kristaps 23: #include <stdlib.h>
24: #include <string.h>
25:
1.70 kristaps 26: #include "libmdoc.h"
1.1 kristaps 27:
1.73 kristaps 28: enum merr {
29: ENOCALL,
30: EBODYPROL,
31: EPROLBODY,
32: ESPACE,
33: ETEXTPROL,
34: ENOBLANK,
35: EMALLOC
36: };
1.41 kristaps 37:
1.1 kristaps 38: const char *const __mdoc_macronames[MDOC_MAX] = {
39: "\\\"", "Dd", "Dt", "Os",
40: "Sh", "Ss", "Pp", "D1",
41: "Dl", "Bd", "Ed", "Bl",
42: "El", "It", "Ad", "An",
43: "Ar", "Cd", "Cm", "Dv",
44: "Er", "Ev", "Ex", "Fa",
45: "Fd", "Fl", "Fn", "Ft",
46: "Ic", "In", "Li", "Nd",
47: "Nm", "Op", "Ot", "Pa",
48: "Rv", "St", "Va", "Vt",
49: /* LINTED */
50: "Xr", "\%A", "\%B", "\%D",
51: /* LINTED */
52: "\%I", "\%J", "\%N", "\%O",
53: /* LINTED */
54: "\%P", "\%R", "\%T", "\%V",
55: "Ac", "Ao", "Aq", "At",
56: "Bc", "Bf", "Bo", "Bq",
57: "Bsx", "Bx", "Db", "Dc",
58: "Do", "Dq", "Ec", "Ef",
59: "Em", "Eo", "Fx", "Ms",
60: "No", "Ns", "Nx", "Ox",
61: "Pc", "Pf", "Po", "Pq",
62: "Qc", "Ql", "Qo", "Qq",
63: "Re", "Rs", "Sc", "So",
64: "Sq", "Sm", "Sx", "Sy",
65: "Tn", "Ux", "Xc", "Xo",
66: "Fo", "Fc", "Oo", "Oc",
67: "Bk", "Ek", "Bt", "Hf",
1.57 kristaps 68: "Fr", "Ud", "Lb", "Ap",
1.61 kristaps 69: "Lp", "Lk", "Mt", "Brq",
1.64 kristaps 70: /* LINTED */
1.65 kristaps 71: "Bro", "Brc", "\%C", "Es",
1.69 kristaps 72: /* LINTED */
73: "En", "Dx", "\%Q"
1.1 kristaps 74: };
75:
76: const char *const __mdoc_argnames[MDOC_ARG_MAX] = {
77: "split", "nosplit", "ragged",
78: "unfilled", "literal", "file",
79: "offset", "bullet", "dash",
80: "hyphen", "item", "enum",
81: "tag", "diag", "hang",
82: "ohang", "inset", "column",
83: "width", "compact", "std",
1.52 kristaps 84: "filled", "words", "emphasis",
1.64 kristaps 85: "symbolic", "nested"
1.1 kristaps 86: };
87:
88: const char * const *mdoc_macronames = __mdoc_macronames;
89: const char * const *mdoc_argnames = __mdoc_argnames;
90:
1.73 kristaps 91: static void mdoc_free1(struct mdoc *);
92: static int mdoc_alloc1(struct mdoc *);
93: static struct mdoc_node *node_alloc(struct mdoc *, int, int,
94: int, enum mdoc_type);
95: static int node_append(struct mdoc *,
1.71 kristaps 96: struct mdoc_node *);
97: static int parsetext(struct mdoc *, int, char *);
98: static int parsemacro(struct mdoc *, int, char *);
99: static int macrowarn(struct mdoc *, int, const char *);
1.73 kristaps 100: static int perr(struct mdoc *, int, int, enum merr);
1.71 kristaps 101:
1.73 kristaps 102: #define verr(m, t) perr((m), (m)->last->line, (m)->last->pos, (t))
1.45 kristaps 103:
1.68 kristaps 104: /*
105: * Get the first (root) node of the parse tree.
106: */
1.1 kristaps 107: const struct mdoc_node *
1.71 kristaps 108: mdoc_node(const struct mdoc *m)
1.1 kristaps 109: {
110:
1.71 kristaps 111: return(MDOC_HALT & m->flags ? NULL : m->first);
1.1 kristaps 112: }
113:
114:
1.37 kristaps 115: const struct mdoc_meta *
1.71 kristaps 116: mdoc_meta(const struct mdoc *m)
1.37 kristaps 117: {
118:
1.71 kristaps 119: return(MDOC_HALT & m->flags ? NULL : &m->meta);
1.37 kristaps 120: }
121:
122:
1.73 kristaps 123: static void
124: mdoc_free1(struct mdoc *mdoc)
1.67 kristaps 125: {
126:
127: if (mdoc->first)
128: mdoc_node_freelist(mdoc->first);
129: if (mdoc->meta.title)
130: free(mdoc->meta.title);
131: if (mdoc->meta.os)
132: free(mdoc->meta.os);
133: if (mdoc->meta.name)
134: free(mdoc->meta.name);
135: if (mdoc->meta.arch)
136: free(mdoc->meta.arch);
137: if (mdoc->meta.vol)
138: free(mdoc->meta.vol);
1.73 kristaps 139: }
140:
141:
142: static int
143: mdoc_alloc1(struct mdoc *mdoc)
144: {
1.67 kristaps 145:
146: bzero(&mdoc->meta, sizeof(struct mdoc_meta));
147: mdoc->flags = 0;
148: mdoc->lastnamed = mdoc->lastsec = 0;
1.70 kristaps 149: mdoc->last = calloc(1, sizeof(struct mdoc_node));
150: if (NULL == mdoc->last)
1.73 kristaps 151: return(0);
152:
1.70 kristaps 153: mdoc->first = mdoc->last;
1.67 kristaps 154: mdoc->last->type = MDOC_ROOT;
155: mdoc->next = MDOC_NEXT_CHILD;
1.73 kristaps 156: return(1);
157: }
158:
159:
160: /*
161: * Free up all resources contributed by a parse: the node tree,
162: * meta-data and so on. Then reallocate the root node for another
163: * parse.
164: */
165: int
166: mdoc_reset(struct mdoc *mdoc)
167: {
168:
169: mdoc_free1(mdoc);
170: return(mdoc_alloc1(mdoc));
1.67 kristaps 171: }
172:
173:
1.68 kristaps 174: /*
175: * Completely free up all resources.
176: */
1.67 kristaps 177: void
1.38 kristaps 178: mdoc_free(struct mdoc *mdoc)
1.34 kristaps 179: {
180:
1.73 kristaps 181: mdoc_free1(mdoc);
1.68 kristaps 182: if (mdoc->htab)
1.74 ! kristaps 183: mdoc_hash_free(mdoc->htab);
1.1 kristaps 184: free(mdoc);
185: }
186:
187:
188: struct mdoc *
1.55 kristaps 189: mdoc_alloc(void *data, int pflags, const struct mdoc_cb *cb)
1.1 kristaps 190: {
191: struct mdoc *p;
192:
1.70 kristaps 193: if (NULL == (p = calloc(1, sizeof(struct mdoc))))
1.73 kristaps 194: return(NULL);
1.74 ! kristaps 195: if (cb)
! 196: (void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
1.1 kristaps 197:
198: p->data = data;
1.73 kristaps 199: p->pflags = pflags;
200:
1.74 ! kristaps 201: if (NULL == (p->htab = mdoc_hash_alloc())) {
! 202: free(p);
! 203: return(NULL);
! 204: } else if (mdoc_alloc1(p))
! 205: return(p);
1.1 kristaps 206:
1.73 kristaps 207: free(p);
208: return(NULL);
1.1 kristaps 209: }
210:
211:
1.68 kristaps 212: /*
213: * Climb back up the parse tree, validating open scopes. Mostly calls
214: * through to macro_end in macro.c.
215: */
1.1 kristaps 216: int
1.72 kristaps 217: mdoc_endparse(struct mdoc *m)
1.20 kristaps 218: {
219:
1.72 kristaps 220: if (MDOC_HALT & m->flags)
1.20 kristaps 221: return(0);
1.72 kristaps 222: else if (mdoc_macroend(m))
1.20 kristaps 223: return(1);
1.72 kristaps 224: m->flags |= MDOC_HALT;
225: return(0);
1.20 kristaps 226: }
227:
228:
1.50 kristaps 229: /*
1.53 kristaps 230: * Main parse routine. Parses a single line -- really just hands off to
231: * the macro or text parser.
1.50 kristaps 232: */
1.20 kristaps 233: int
1.53 kristaps 234: mdoc_parseln(struct mdoc *m, int ln, char *buf)
1.1 kristaps 235: {
236:
1.53 kristaps 237: /* If in error-mode, then we parse no more. */
1.50 kristaps 238:
1.53 kristaps 239: if (MDOC_HALT & m->flags)
1.20 kristaps 240: return(0);
1.50 kristaps 241:
1.53 kristaps 242: return('.' == *buf ? parsemacro(m, ln, buf) :
243: parsetext(m, ln, buf));
1.1 kristaps 244: }
245:
246:
247: void
1.31 kristaps 248: mdoc_vmsg(struct mdoc *mdoc, int ln, int pos, const char *fmt, ...)
1.1 kristaps 249: {
1.31 kristaps 250: char buf[256];
1.23 kristaps 251: va_list ap;
1.1 kristaps 252:
253: if (NULL == mdoc->cb.mdoc_msg)
254: return;
255:
256: va_start(ap, fmt);
1.31 kristaps 257: (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
1.1 kristaps 258: va_end(ap);
1.31 kristaps 259: (*mdoc->cb.mdoc_msg)(mdoc->data, ln, pos, buf);
1.1 kristaps 260: }
261:
262:
263: int
1.31 kristaps 264: mdoc_verr(struct mdoc *mdoc, int ln, int pos,
265: const char *fmt, ...)
1.1 kristaps 266: {
1.31 kristaps 267: char buf[256];
268: va_list ap;
1.1 kristaps 269:
270: if (NULL == mdoc->cb.mdoc_err)
271: return(0);
1.31 kristaps 272:
273: va_start(ap, fmt);
274: (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
275: va_end(ap);
276: return((*mdoc->cb.mdoc_err)(mdoc->data, ln, pos, buf));
1.1 kristaps 277: }
278:
279:
280: int
1.31 kristaps 281: mdoc_vwarn(struct mdoc *mdoc, int ln, int pos,
282: enum mdoc_warn type, const char *fmt, ...)
1.1 kristaps 283: {
1.31 kristaps 284: char buf[256];
285: va_list ap;
1.1 kristaps 286:
287: if (NULL == mdoc->cb.mdoc_warn)
288: return(0);
1.31 kristaps 289:
290: va_start(ap, fmt);
291: (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
292: va_end(ap);
293: return((*mdoc->cb.mdoc_warn)(mdoc->data, ln, pos, type, buf));
1.1 kristaps 294: }
295:
296:
297: int
1.53 kristaps 298: mdoc_macro(struct mdoc *m, int tok,
299: int ln, int pp, int *pos, char *buf)
1.1 kristaps 300: {
301:
1.53 kristaps 302: /* FIXME - these should happen during validation. */
1.31 kristaps 303:
1.44 kristaps 304: if (MDOC_PROLOGUE & mdoc_macros[tok].flags &&
1.53 kristaps 305: SEC_PROLOGUE != m->lastnamed)
1.73 kristaps 306: return(perr(m, ln, pp, EPROLBODY));
1.53 kristaps 307:
1.44 kristaps 308: if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
1.53 kristaps 309: SEC_PROLOGUE == m->lastnamed)
1.73 kristaps 310: return(perr(m, ln, pp, EBODYPROL));
1.53 kristaps 311:
312: if (1 != pp && ! (MDOC_CALLABLE & mdoc_macros[tok].flags))
1.73 kristaps 313: return(perr(m, ln, pp, ENOCALL));
1.53 kristaps 314:
315: return((*mdoc_macros[tok].fp)(m, tok, ln, pp, pos, buf));
1.1 kristaps 316: }
317:
318:
1.23 kristaps 319: static int
1.73 kristaps 320: perr(struct mdoc *m, int line, int pos, enum merr type)
321: {
322: char *p;
323:
324: p = NULL;
325: switch (type) {
326: case (ENOCALL):
327: p = "not callable";
328: break;
329: case (EPROLBODY):
330: p = "macro disallowed in document body";
331: break;
332: case (EBODYPROL):
333: p = "macro disallowed in document prologue";
334: break;
335: case (EMALLOC):
336: p = "memory exhausted";
337: break;
338: case (ETEXTPROL):
339: p = "text disallowed in document prologue";
340: break;
341: case (ENOBLANK):
342: p = "blank lines disallowed in non-literal contexts";
343: break;
344: case (ESPACE):
345: p = "whitespace disallowed after delimiter";
346: break;
347: }
348: assert(p);
349: return(mdoc_perr(m, line, pos, p));
350: }
351:
352:
353: static int
354: node_append(struct mdoc *mdoc, struct mdoc_node *p)
1.1 kristaps 355: {
356:
1.25 kristaps 357: assert(mdoc->last);
358: assert(mdoc->first);
359: assert(MDOC_ROOT != p->type);
1.1 kristaps 360:
1.13 kristaps 361: switch (mdoc->next) {
362: case (MDOC_NEXT_SIBLING):
1.6 kristaps 363: mdoc->last->next = p;
364: p->prev = mdoc->last;
1.13 kristaps 365: p->parent = mdoc->last->parent;
1.1 kristaps 366: break;
1.13 kristaps 367: case (MDOC_NEXT_CHILD):
368: mdoc->last->child = p;
1.1 kristaps 369: p->parent = mdoc->last;
370: break;
371: default:
1.13 kristaps 372: abort();
373: /* NOTREACHED */
1.1 kristaps 374: }
375:
1.23 kristaps 376: if ( ! mdoc_valid_pre(mdoc, p))
377: return(0);
1.68 kristaps 378: if ( ! mdoc_action_pre(mdoc, p))
379: return(0);
1.27 kristaps 380:
381: switch (p->type) {
382: case (MDOC_HEAD):
383: assert(MDOC_BLOCK == p->parent->type);
1.53 kristaps 384: p->parent->head = p;
1.27 kristaps 385: break;
386: case (MDOC_TAIL):
387: assert(MDOC_BLOCK == p->parent->type);
1.53 kristaps 388: p->parent->tail = p;
1.27 kristaps 389: break;
390: case (MDOC_BODY):
391: assert(MDOC_BLOCK == p->parent->type);
1.53 kristaps 392: p->parent->body = p;
1.27 kristaps 393: break;
394: default:
395: break;
396: }
397:
1.1 kristaps 398: mdoc->last = p;
1.71 kristaps 399:
400: switch (p->type) {
401: case (MDOC_TEXT):
402: if ( ! mdoc_valid_post(mdoc))
403: return(0);
404: if ( ! mdoc_action_post(mdoc))
405: return(0);
406: break;
407: default:
408: break;
409: }
410:
1.23 kristaps 411: return(1);
1.1 kristaps 412: }
413:
414:
1.45 kristaps 415: static struct mdoc_node *
1.73 kristaps 416: node_alloc(struct mdoc *mdoc, int line,
417: int pos, int tok, enum mdoc_type type)
1.45 kristaps 418: {
1.46 kristaps 419: struct mdoc_node *p;
420:
1.73 kristaps 421: if (NULL == (p = calloc(1, sizeof(struct mdoc_node)))) {
422: (void)verr(mdoc, EMALLOC);
423: return(NULL);
424: }
425:
1.46 kristaps 426: p->sec = mdoc->lastsec;
1.73 kristaps 427: p->line = line;
428: p->pos = pos;
429: p->tok = tok;
430: if (MDOC_TEXT != (p->type = type))
431: assert(p->tok >= 0);
1.45 kristaps 432:
1.46 kristaps 433: return(p);
1.45 kristaps 434: }
435:
436:
1.23 kristaps 437: int
1.22 kristaps 438: mdoc_tail_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.17 kristaps 439: {
440: struct mdoc_node *p;
441:
1.73 kristaps 442: p = node_alloc(mdoc, line, pos, tok, MDOC_TAIL);
443: if (NULL == p)
444: return(0);
445: return(node_append(mdoc, p));
1.17 kristaps 446: }
447:
448:
1.23 kristaps 449: int
1.22 kristaps 450: mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.1 kristaps 451: {
452: struct mdoc_node *p;
453:
454: assert(mdoc->first);
455: assert(mdoc->last);
456:
1.73 kristaps 457: p = node_alloc(mdoc, line, pos, tok, MDOC_HEAD);
458: if (NULL == p)
459: return(0);
460: return(node_append(mdoc, p));
1.1 kristaps 461: }
462:
463:
1.23 kristaps 464: int
1.22 kristaps 465: mdoc_body_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.1 kristaps 466: {
467: struct mdoc_node *p;
468:
1.73 kristaps 469: p = node_alloc(mdoc, line, pos, tok, MDOC_BODY);
470: if (NULL == p)
471: return(0);
472: return(node_append(mdoc, p));
1.1 kristaps 473: }
474:
475:
1.23 kristaps 476: int
1.22 kristaps 477: mdoc_block_alloc(struct mdoc *mdoc, int line, int pos,
1.53 kristaps 478: int tok, struct mdoc_arg *args)
1.1 kristaps 479: {
480: struct mdoc_node *p;
481:
1.73 kristaps 482: p = node_alloc(mdoc, line, pos, tok, MDOC_BLOCK);
483: if (NULL == p)
484: return(0);
485: if ((p->args = args))
1.53 kristaps 486: (args->refcnt)++;
1.73 kristaps 487: return(node_append(mdoc, p));
1.1 kristaps 488: }
489:
490:
1.23 kristaps 491: int
1.22 kristaps 492: mdoc_elem_alloc(struct mdoc *mdoc, int line, int pos,
1.53 kristaps 493: int tok, struct mdoc_arg *args)
1.1 kristaps 494: {
495: struct mdoc_node *p;
496:
1.73 kristaps 497: p = node_alloc(mdoc, line, pos, tok, MDOC_ELEM);
498: if (NULL == p)
499: return(0);
500: if ((p->args = args))
1.53 kristaps 501: (args->refcnt)++;
1.73 kristaps 502: return(node_append(mdoc, p));
1.1 kristaps 503: }
504:
505:
1.23 kristaps 506: int
1.22 kristaps 507: mdoc_word_alloc(struct mdoc *mdoc,
508: int line, int pos, const char *word)
1.1 kristaps 509: {
510: struct mdoc_node *p;
511:
1.73 kristaps 512: p = node_alloc(mdoc, line, pos, -1, MDOC_TEXT);
513: if (NULL == p)
514: return(0);
515: if (NULL == (p->string = strdup(word))) {
516: (void)verr(mdoc, EMALLOC);
517: return(0);
518: }
519: return(node_append(mdoc, p));
1.1 kristaps 520: }
521:
522:
1.53 kristaps 523: void
524: mdoc_node_free(struct mdoc_node *p)
1.1 kristaps 525: {
526:
1.53 kristaps 527: if (p->string)
528: free(p->string);
529: if (p->args)
530: mdoc_argv_free(p->args);
1.1 kristaps 531: free(p);
532: }
533:
534:
1.53 kristaps 535: void
536: mdoc_node_freelist(struct mdoc_node *p)
1.1 kristaps 537: {
538:
1.53 kristaps 539: if (p->child)
540: mdoc_node_freelist(p->child);
541: if (p->next)
542: mdoc_node_freelist(p->next);
1.1 kristaps 543:
1.53 kristaps 544: mdoc_node_free(p);
1.1 kristaps 545: }
546:
547:
1.53 kristaps 548: /*
549: * Parse free-form text, that is, a line that does not begin with the
550: * control character.
551: */
552: static int
1.68 kristaps 553: parsetext(struct mdoc *m, int line, char *buf)
1.1 kristaps 554: {
555:
1.68 kristaps 556: if (SEC_PROLOGUE == m->lastnamed)
1.73 kristaps 557: return(perr(m, line, 0, ETEXTPROL));
1.1 kristaps 558:
1.68 kristaps 559: if (0 == buf[0] && ! (MDOC_LITERAL & m->flags))
1.73 kristaps 560: return(perr(m, line, 0, ENOBLANK));
1.68 kristaps 561:
562: if ( ! mdoc_word_alloc(m, line, 0, buf))
1.53 kristaps 563: return(0);
1.1 kristaps 564:
1.68 kristaps 565: m->next = MDOC_NEXT_SIBLING;
1.53 kristaps 566: return(1);
1.1 kristaps 567: }
568:
569:
1.58 kristaps 570: static int
571: macrowarn(struct mdoc *m, int ln, const char *buf)
572: {
573: if ( ! (MDOC_IGN_MACRO & m->pflags))
1.73 kristaps 574: return(mdoc_perr(m, ln, 1,
575: "unknown macro: %s%s",
1.59 kristaps 576: buf, strlen(buf) > 3 ? "..." : ""));
1.58 kristaps 577: return(mdoc_pwarn(m, ln, 1, WARN_SYNTAX,
578: "unknown macro: %s%s",
1.59 kristaps 579: buf, strlen(buf) > 3 ? "..." : ""));
1.58 kristaps 580: }
581:
582:
583:
1.53 kristaps 584: /*
585: * Parse a macro line, that is, a line beginning with the control
586: * character.
587: */
588: int
589: parsemacro(struct mdoc *m, int ln, char *buf)
1.1 kristaps 590: {
1.53 kristaps 591: int i, c;
592: char mac[5];
1.1 kristaps 593:
1.63 kristaps 594: /* Comments and empties are quickly ignored. */
595:
596: if (0 == buf[1])
597: return(1);
598:
1.65 kristaps 599: if (' ' == buf[1]) {
1.63 kristaps 600: i = 2;
1.65 kristaps 601: while (buf[i] && ' ' == buf[i])
1.63 kristaps 602: i++;
603: if (0 == buf[i])
604: return(1);
1.73 kristaps 605: return(perr(m, ln, 1, ESPACE));
1.63 kristaps 606: }
1.1 kristaps 607:
1.53 kristaps 608: if (buf[1] && '\\' == buf[1])
609: if (buf[2] && '\"' == buf[2])
610: return(1);
1.1 kristaps 611:
1.53 kristaps 612: /* Copy the first word into a nil-terminated buffer. */
1.1 kristaps 613:
1.53 kristaps 614: for (i = 1; i < 5; i++) {
615: if (0 == (mac[i - 1] = buf[i]))
616: break;
1.65 kristaps 617: else if (' ' == buf[i])
1.53 kristaps 618: break;
619: }
1.1 kristaps 620:
1.53 kristaps 621: mac[i - 1] = 0;
1.1 kristaps 622:
1.53 kristaps 623: if (i == 5 || i <= 2) {
1.58 kristaps 624: if ( ! macrowarn(m, ln, mac))
625: goto err;
626: return(1);
1.53 kristaps 627: }
628:
1.74 ! kristaps 629: if (MDOC_MAX == (c = mdoc_hash_find(m->htab, mac))) {
1.58 kristaps 630: if ( ! macrowarn(m, ln, mac))
631: goto err;
632: return(1);
1.53 kristaps 633: }
1.1 kristaps 634:
1.53 kristaps 635: /* The macro is sane. Jump to the next word. */
1.1 kristaps 636:
1.65 kristaps 637: while (buf[i] && ' ' == buf[i])
1.53 kristaps 638: i++;
1.1 kristaps 639:
1.53 kristaps 640: /* Begin recursive parse sequence. */
1.1 kristaps 641:
1.53 kristaps 642: if ( ! mdoc_macro(m, c, ln, 1, &i, buf))
643: goto err;
1.1 kristaps 644:
1.53 kristaps 645: return(1);
1.1 kristaps 646:
1.53 kristaps 647: err: /* Error out. */
1.1 kristaps 648:
1.53 kristaps 649: m->flags |= MDOC_HALT;
650: return(0);
1.1 kristaps 651: }
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