Annotation of mandoc/mdoc.c, Revision 1.70
1.70 ! kristaps 1: /* $Id: mdoc.c,v 1.69 2009/03/21 09:42:07 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 <err.h>
22: #include <stdarg.h>
23: #include <stdlib.h>
24: #include <stdio.h>
25: #include <string.h>
26:
1.70 ! kristaps 27: #include "libmdoc.h"
1.1 kristaps 28:
1.41 kristaps 29: /*
30: * Main caller in the libmdoc library. This begins the parsing routine,
31: * handles allocation of data, and so forth. Most of the "work" is done
1.68 kristaps 32: * in macro.c, validate.c and action.c.
1.41 kristaps 33: */
34:
1.70 ! kristaps 35: /* FIXME: have this accept line/pos/tok. */
1.48 kristaps 36: static struct mdoc_node *mdoc_node_alloc(const struct mdoc *);
37: static int mdoc_node_append(struct mdoc *,
38: struct mdoc_node *);
1.53 kristaps 39:
40: static int parsetext(struct mdoc *, int, char *);
41: static int parsemacro(struct mdoc *, int, char *);
1.58 kristaps 42: static int macrowarn(struct mdoc *, int, const char *);
1.48 kristaps 43:
44:
1.1 kristaps 45: const char *const __mdoc_macronames[MDOC_MAX] = {
46: "\\\"", "Dd", "Dt", "Os",
47: "Sh", "Ss", "Pp", "D1",
48: "Dl", "Bd", "Ed", "Bl",
49: "El", "It", "Ad", "An",
50: "Ar", "Cd", "Cm", "Dv",
51: "Er", "Ev", "Ex", "Fa",
52: "Fd", "Fl", "Fn", "Ft",
53: "Ic", "In", "Li", "Nd",
54: "Nm", "Op", "Ot", "Pa",
55: "Rv", "St", "Va", "Vt",
56: /* LINTED */
57: "Xr", "\%A", "\%B", "\%D",
58: /* LINTED */
59: "\%I", "\%J", "\%N", "\%O",
60: /* LINTED */
61: "\%P", "\%R", "\%T", "\%V",
62: "Ac", "Ao", "Aq", "At",
63: "Bc", "Bf", "Bo", "Bq",
64: "Bsx", "Bx", "Db", "Dc",
65: "Do", "Dq", "Ec", "Ef",
66: "Em", "Eo", "Fx", "Ms",
67: "No", "Ns", "Nx", "Ox",
68: "Pc", "Pf", "Po", "Pq",
69: "Qc", "Ql", "Qo", "Qq",
70: "Re", "Rs", "Sc", "So",
71: "Sq", "Sm", "Sx", "Sy",
72: "Tn", "Ux", "Xc", "Xo",
73: "Fo", "Fc", "Oo", "Oc",
74: "Bk", "Ek", "Bt", "Hf",
1.57 kristaps 75: "Fr", "Ud", "Lb", "Ap",
1.61 kristaps 76: "Lp", "Lk", "Mt", "Brq",
1.64 kristaps 77: /* LINTED */
1.65 kristaps 78: "Bro", "Brc", "\%C", "Es",
1.69 kristaps 79: /* LINTED */
80: "En", "Dx", "\%Q"
1.1 kristaps 81: };
82:
83: const char *const __mdoc_argnames[MDOC_ARG_MAX] = {
84: "split", "nosplit", "ragged",
85: "unfilled", "literal", "file",
86: "offset", "bullet", "dash",
87: "hyphen", "item", "enum",
88: "tag", "diag", "hang",
89: "ohang", "inset", "column",
90: "width", "compact", "std",
1.52 kristaps 91: "filled", "words", "emphasis",
1.64 kristaps 92: "symbolic", "nested"
1.1 kristaps 93: };
94:
95: const char * const *mdoc_macronames = __mdoc_macronames;
96: const char * const *mdoc_argnames = __mdoc_argnames;
97:
1.45 kristaps 98:
1.68 kristaps 99: /*
100: * Get the first (root) node of the parse tree.
101: */
1.1 kristaps 102: const struct mdoc_node *
1.47 kristaps 103: mdoc_node(const struct mdoc *mdoc)
1.1 kristaps 104: {
105:
1.68 kristaps 106: if (MDOC_HALT & mdoc->flags)
107: return(NULL);
108: if (mdoc->first)
109: assert(MDOC_ROOT == mdoc->first->type);
1.1 kristaps 110: return(mdoc->first);
111: }
112:
113:
1.37 kristaps 114: const struct mdoc_meta *
1.47 kristaps 115: mdoc_meta(const struct mdoc *mdoc)
1.37 kristaps 116: {
117:
1.68 kristaps 118: if (MDOC_HALT & mdoc->flags)
119: return(NULL);
1.37 kristaps 120: return(&mdoc->meta);
121: }
122:
123:
1.68 kristaps 124: /*
1.70 ! kristaps 125: * Free up all resources contributed by a parse: the node tree,
! 126: * meta-data and so on. Then reallocate the root node for another
! 127: * parse.
1.68 kristaps 128: */
1.1 kristaps 129: void
1.67 kristaps 130: mdoc_reset(struct mdoc *mdoc)
131: {
132:
133: if (mdoc->first)
134: mdoc_node_freelist(mdoc->first);
135: if (mdoc->meta.title)
136: free(mdoc->meta.title);
137: if (mdoc->meta.os)
138: free(mdoc->meta.os);
139: if (mdoc->meta.name)
140: free(mdoc->meta.name);
141: if (mdoc->meta.arch)
142: free(mdoc->meta.arch);
143: if (mdoc->meta.vol)
144: free(mdoc->meta.vol);
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)
! 151: err(1, "calloc");
! 152: mdoc->first = mdoc->last;
1.67 kristaps 153: mdoc->last->type = MDOC_ROOT;
154: mdoc->next = MDOC_NEXT_CHILD;
155: }
156:
157:
1.68 kristaps 158: /*
159: * Completely free up all resources.
160: */
1.67 kristaps 161: void
1.38 kristaps 162: mdoc_free(struct mdoc *mdoc)
1.34 kristaps 163: {
164:
1.38 kristaps 165: if (mdoc->first)
166: mdoc_node_freelist(mdoc->first);
1.34 kristaps 167: if (mdoc->meta.title)
168: free(mdoc->meta.title);
169: if (mdoc->meta.os)
170: free(mdoc->meta.os);
171: if (mdoc->meta.name)
172: free(mdoc->meta.name);
1.52 kristaps 173: if (mdoc->meta.arch)
174: free(mdoc->meta.arch);
175: if (mdoc->meta.vol)
176: free(mdoc->meta.vol);
1.34 kristaps 177:
1.68 kristaps 178: if (mdoc->htab)
179: mdoc_tokhash_free(mdoc->htab);
180:
1.1 kristaps 181: free(mdoc);
182: }
183:
184:
185: struct mdoc *
1.55 kristaps 186: mdoc_alloc(void *data, int pflags, const struct mdoc_cb *cb)
1.1 kristaps 187: {
188: struct mdoc *p;
189:
1.70 ! kristaps 190: if (NULL == (p = calloc(1, sizeof(struct mdoc))))
! 191: err(1, "calloc");
1.1 kristaps 192:
193: p->data = data;
1.33 kristaps 194: if (cb)
195: (void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
1.1 kristaps 196:
1.70 ! kristaps 197: if (NULL == (p->first = calloc(1, sizeof(struct mdoc_node))))
! 198: err(1, "calloc");
! 199: p->last = p->first;
1.25 kristaps 200: p->last->type = MDOC_ROOT;
1.55 kristaps 201: p->pflags = pflags;
1.25 kristaps 202: p->next = MDOC_NEXT_CHILD;
1.4 kristaps 203: p->htab = mdoc_tokhash_alloc();
1.1 kristaps 204: return(p);
205: }
206:
207:
1.68 kristaps 208: /*
209: * Climb back up the parse tree, validating open scopes. Mostly calls
210: * through to macro_end in macro.c.
211: */
1.1 kristaps 212: int
1.20 kristaps 213: mdoc_endparse(struct mdoc *mdoc)
214: {
215:
216: if (MDOC_HALT & mdoc->flags)
217: return(0);
218: if (NULL == mdoc->first)
219: return(1);
220:
221: assert(mdoc->last);
222: if ( ! macro_end(mdoc)) {
223: mdoc->flags |= MDOC_HALT;
224: return(0);
225: }
226: return(1);
227: }
228:
229:
1.50 kristaps 230: /*
1.53 kristaps 231: * Main parse routine. Parses a single line -- really just hands off to
232: * the macro or text parser.
1.50 kristaps 233: */
1.20 kristaps 234: int
1.53 kristaps 235: mdoc_parseln(struct mdoc *m, int ln, char *buf)
1.1 kristaps 236: {
237:
1.53 kristaps 238: /* If in error-mode, then we parse no more. */
1.50 kristaps 239:
1.53 kristaps 240: if (MDOC_HALT & m->flags)
1.20 kristaps 241: return(0);
1.50 kristaps 242:
1.53 kristaps 243: return('.' == *buf ? parsemacro(m, ln, buf) :
244: parsetext(m, ln, buf));
1.1 kristaps 245: }
246:
247:
248: void
1.31 kristaps 249: mdoc_vmsg(struct mdoc *mdoc, int ln, int pos, const char *fmt, ...)
1.1 kristaps 250: {
1.31 kristaps 251: char buf[256];
1.23 kristaps 252: va_list ap;
1.1 kristaps 253:
254: if (NULL == mdoc->cb.mdoc_msg)
255: return;
256:
257: va_start(ap, fmt);
1.31 kristaps 258: (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
1.1 kristaps 259: va_end(ap);
1.31 kristaps 260: (*mdoc->cb.mdoc_msg)(mdoc->data, ln, pos, buf);
1.1 kristaps 261: }
262:
263:
264: int
1.31 kristaps 265: mdoc_verr(struct mdoc *mdoc, int ln, int pos,
266: const char *fmt, ...)
1.1 kristaps 267: {
1.31 kristaps 268: char buf[256];
269: va_list ap;
1.1 kristaps 270:
271: if (NULL == mdoc->cb.mdoc_err)
272: return(0);
1.31 kristaps 273:
274: va_start(ap, fmt);
275: (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
276: va_end(ap);
277: return((*mdoc->cb.mdoc_err)(mdoc->data, ln, pos, buf));
1.1 kristaps 278: }
279:
280:
281: int
1.31 kristaps 282: mdoc_vwarn(struct mdoc *mdoc, int ln, int pos,
283: enum mdoc_warn type, const char *fmt, ...)
1.1 kristaps 284: {
1.31 kristaps 285: char buf[256];
286: va_list ap;
1.1 kristaps 287:
288: if (NULL == mdoc->cb.mdoc_warn)
289: return(0);
1.31 kristaps 290:
291: va_start(ap, fmt);
292: (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
293: va_end(ap);
294: return((*mdoc->cb.mdoc_warn)(mdoc->data, ln, pos, type, buf));
1.1 kristaps 295: }
296:
297:
298: int
1.53 kristaps 299: mdoc_macro(struct mdoc *m, int tok,
300: int ln, int pp, int *pos, char *buf)
1.1 kristaps 301: {
302:
1.53 kristaps 303: /* FIXME - these should happen during validation. */
1.31 kristaps 304:
1.44 kristaps 305: if (MDOC_PROLOGUE & mdoc_macros[tok].flags &&
1.53 kristaps 306: SEC_PROLOGUE != m->lastnamed)
307: return(mdoc_perr(m, ln, pp,
308: "disallowed in document body"));
309:
1.44 kristaps 310: if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
1.53 kristaps 311: SEC_PROLOGUE == m->lastnamed)
312: return(mdoc_perr(m, ln, pp,
313: "disallowed in prologue"));
314:
315: if (1 != pp && ! (MDOC_CALLABLE & mdoc_macros[tok].flags))
1.64 kristaps 316: return(mdoc_perr(m, ln, pp, "%s not callable",
317: mdoc_macronames[tok]));
1.53 kristaps 318:
319: return((*mdoc_macros[tok].fp)(m, tok, ln, pp, pos, buf));
1.1 kristaps 320: }
321:
322:
1.23 kristaps 323: static int
324: mdoc_node_append(struct mdoc *mdoc, struct mdoc_node *p)
1.1 kristaps 325: {
326:
1.25 kristaps 327: assert(mdoc->last);
328: assert(mdoc->first);
329: assert(MDOC_ROOT != p->type);
1.1 kristaps 330:
1.13 kristaps 331: switch (mdoc->next) {
332: case (MDOC_NEXT_SIBLING):
1.6 kristaps 333: mdoc->last->next = p;
334: p->prev = mdoc->last;
1.13 kristaps 335: p->parent = mdoc->last->parent;
1.1 kristaps 336: break;
1.13 kristaps 337: case (MDOC_NEXT_CHILD):
338: mdoc->last->child = p;
1.1 kristaps 339: p->parent = mdoc->last;
340: break;
341: default:
1.13 kristaps 342: abort();
343: /* NOTREACHED */
1.1 kristaps 344: }
345:
1.23 kristaps 346: if ( ! mdoc_valid_pre(mdoc, p))
347: return(0);
1.68 kristaps 348: if ( ! mdoc_action_pre(mdoc, p))
349: return(0);
1.27 kristaps 350:
351: switch (p->type) {
352: case (MDOC_HEAD):
353: assert(MDOC_BLOCK == p->parent->type);
1.53 kristaps 354: p->parent->head = p;
1.27 kristaps 355: break;
356: case (MDOC_TAIL):
357: assert(MDOC_BLOCK == p->parent->type);
1.53 kristaps 358: p->parent->tail = p;
1.27 kristaps 359: break;
360: case (MDOC_BODY):
361: assert(MDOC_BLOCK == p->parent->type);
1.53 kristaps 362: p->parent->body = p;
1.27 kristaps 363: break;
364: default:
365: break;
366: }
367:
1.1 kristaps 368: mdoc->last = p;
1.23 kristaps 369: return(1);
1.1 kristaps 370: }
371:
372:
1.45 kristaps 373: static struct mdoc_node *
1.46 kristaps 374: mdoc_node_alloc(const struct mdoc *mdoc)
1.45 kristaps 375: {
1.46 kristaps 376: struct mdoc_node *p;
377:
1.70 ! kristaps 378: if (NULL == (p = calloc(1, sizeof(struct mdoc_node))))
! 379: err(1, "calloc");
1.46 kristaps 380: p->sec = mdoc->lastsec;
1.45 kristaps 381:
1.46 kristaps 382: return(p);
1.45 kristaps 383: }
384:
385:
1.23 kristaps 386: int
1.22 kristaps 387: mdoc_tail_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.17 kristaps 388: {
389: struct mdoc_node *p;
390:
391: assert(mdoc->first);
392: assert(mdoc->last);
393:
1.46 kristaps 394: p = mdoc_node_alloc(mdoc);
1.17 kristaps 395:
1.22 kristaps 396: p->line = line;
397: p->pos = pos;
1.17 kristaps 398: p->type = MDOC_TAIL;
1.27 kristaps 399: p->tok = tok;
1.17 kristaps 400:
1.23 kristaps 401: return(mdoc_node_append(mdoc, p));
1.17 kristaps 402: }
403:
404:
1.23 kristaps 405: int
1.22 kristaps 406: mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.1 kristaps 407: {
408: struct mdoc_node *p;
409:
410: assert(mdoc->first);
411: assert(mdoc->last);
412:
1.46 kristaps 413: p = mdoc_node_alloc(mdoc);
1.13 kristaps 414:
1.22 kristaps 415: p->line = line;
416: p->pos = pos;
1.1 kristaps 417: p->type = MDOC_HEAD;
1.27 kristaps 418: p->tok = tok;
1.1 kristaps 419:
1.23 kristaps 420: return(mdoc_node_append(mdoc, p));
1.1 kristaps 421: }
422:
423:
1.23 kristaps 424: int
1.22 kristaps 425: mdoc_body_alloc(struct mdoc *mdoc, int line, int pos, int tok)
1.1 kristaps 426: {
427: struct mdoc_node *p;
428:
429: assert(mdoc->first);
430: assert(mdoc->last);
431:
1.46 kristaps 432: p = mdoc_node_alloc(mdoc);
1.1 kristaps 433:
1.22 kristaps 434: p->line = line;
435: p->pos = pos;
1.1 kristaps 436: p->type = MDOC_BODY;
1.27 kristaps 437: p->tok = tok;
1.1 kristaps 438:
1.23 kristaps 439: return(mdoc_node_append(mdoc, p));
1.1 kristaps 440: }
441:
442:
1.23 kristaps 443: int
1.22 kristaps 444: mdoc_block_alloc(struct mdoc *mdoc, int line, int pos,
1.53 kristaps 445: int tok, struct mdoc_arg *args)
1.1 kristaps 446: {
447: struct mdoc_node *p;
448:
1.46 kristaps 449: p = mdoc_node_alloc(mdoc);
1.1 kristaps 450:
1.22 kristaps 451: p->pos = pos;
452: p->line = line;
1.1 kristaps 453: p->type = MDOC_BLOCK;
1.27 kristaps 454: p->tok = tok;
1.53 kristaps 455: p->args = args;
456:
457: if (args)
458: (args->refcnt)++;
1.1 kristaps 459:
1.23 kristaps 460: return(mdoc_node_append(mdoc, p));
1.1 kristaps 461: }
462:
463:
1.23 kristaps 464: int
1.22 kristaps 465: mdoc_elem_alloc(struct mdoc *mdoc, int line, int pos,
1.53 kristaps 466: int tok, struct mdoc_arg *args)
1.1 kristaps 467: {
468: struct mdoc_node *p;
469:
1.46 kristaps 470: p = mdoc_node_alloc(mdoc);
1.22 kristaps 471:
472: p->line = line;
473: p->pos = pos;
1.1 kristaps 474: p->type = MDOC_ELEM;
1.27 kristaps 475: p->tok = tok;
1.53 kristaps 476: p->args = args;
477:
478: if (args)
479: (args->refcnt)++;
1.1 kristaps 480:
1.23 kristaps 481: return(mdoc_node_append(mdoc, p));
1.1 kristaps 482: }
483:
484:
1.23 kristaps 485: int
1.22 kristaps 486: mdoc_word_alloc(struct mdoc *mdoc,
487: int line, int pos, const char *word)
1.1 kristaps 488: {
489: struct mdoc_node *p;
490:
1.46 kristaps 491: p = mdoc_node_alloc(mdoc);
1.45 kristaps 492:
1.22 kristaps 493: p->line = line;
494: p->pos = pos;
1.1 kristaps 495: p->type = MDOC_TEXT;
1.70 ! kristaps 496: if (NULL == (p->string = strdup(word)))
! 497: err(1, "strdup");
1.1 kristaps 498:
1.23 kristaps 499: return(mdoc_node_append(mdoc, p));
1.1 kristaps 500: }
501:
502:
1.53 kristaps 503: void
504: mdoc_node_free(struct mdoc_node *p)
1.1 kristaps 505: {
506:
1.53 kristaps 507: if (p->string)
508: free(p->string);
509: if (p->args)
510: mdoc_argv_free(p->args);
1.1 kristaps 511: free(p);
512: }
513:
514:
1.53 kristaps 515: void
516: mdoc_node_freelist(struct mdoc_node *p)
1.1 kristaps 517: {
518:
1.53 kristaps 519: if (p->child)
520: mdoc_node_freelist(p->child);
521: if (p->next)
522: mdoc_node_freelist(p->next);
1.1 kristaps 523:
1.53 kristaps 524: mdoc_node_free(p);
1.1 kristaps 525: }
526:
527:
1.53 kristaps 528: /*
529: * Parse free-form text, that is, a line that does not begin with the
530: * control character.
531: */
532: static int
1.68 kristaps 533: parsetext(struct mdoc *m, int line, char *buf)
1.1 kristaps 534: {
535:
1.68 kristaps 536: if (SEC_PROLOGUE == m->lastnamed)
537: return(mdoc_perr(m, line, 0,
1.53 kristaps 538: "text disallowed in prologue"));
1.1 kristaps 539:
1.68 kristaps 540: if (0 == buf[0] && ! (MDOC_LITERAL & m->flags))
541: return(mdoc_perr(m, line, 0,
542: "blank lines only in literal context"));
543:
544: if ( ! mdoc_word_alloc(m, line, 0, buf))
1.53 kristaps 545: return(0);
1.1 kristaps 546:
1.68 kristaps 547: m->next = MDOC_NEXT_SIBLING;
1.53 kristaps 548: return(1);
1.1 kristaps 549: }
550:
551:
1.58 kristaps 552: static int
553: macrowarn(struct mdoc *m, int ln, const char *buf)
554: {
555: if ( ! (MDOC_IGN_MACRO & m->pflags))
556: return(mdoc_perr(m, ln, 1, "unknown macro: %s%s",
1.59 kristaps 557: buf, strlen(buf) > 3 ? "..." : ""));
1.58 kristaps 558: return(mdoc_pwarn(m, ln, 1, WARN_SYNTAX,
559: "unknown macro: %s%s",
1.59 kristaps 560: buf, strlen(buf) > 3 ? "..." : ""));
1.58 kristaps 561: }
562:
563:
564:
1.53 kristaps 565: /*
566: * Parse a macro line, that is, a line beginning with the control
567: * character.
568: */
569: int
570: parsemacro(struct mdoc *m, int ln, char *buf)
1.1 kristaps 571: {
1.53 kristaps 572: int i, c;
573: char mac[5];
1.1 kristaps 574:
1.63 kristaps 575: /* Comments and empties are quickly ignored. */
576:
577: if (0 == buf[1])
578: return(1);
579:
1.65 kristaps 580: if (' ' == buf[1]) {
1.63 kristaps 581: i = 2;
1.65 kristaps 582: while (buf[i] && ' ' == buf[i])
1.63 kristaps 583: i++;
584: if (0 == buf[i])
585: return(1);
586: return(mdoc_perr(m, ln, 1, "invalid syntax"));
587: }
1.1 kristaps 588:
1.53 kristaps 589: if (buf[1] && '\\' == buf[1])
590: if (buf[2] && '\"' == buf[2])
591: return(1);
1.1 kristaps 592:
1.53 kristaps 593: /* Copy the first word into a nil-terminated buffer. */
1.1 kristaps 594:
1.53 kristaps 595: for (i = 1; i < 5; i++) {
596: if (0 == (mac[i - 1] = buf[i]))
597: break;
1.65 kristaps 598: else if (' ' == buf[i])
1.53 kristaps 599: break;
600: }
1.1 kristaps 601:
1.53 kristaps 602: mac[i - 1] = 0;
1.1 kristaps 603:
1.53 kristaps 604: if (i == 5 || i <= 2) {
1.58 kristaps 605: if ( ! macrowarn(m, ln, mac))
606: goto err;
607: return(1);
1.53 kristaps 608: }
609:
610: if (MDOC_MAX == (c = mdoc_tokhash_find(m->htab, mac))) {
1.58 kristaps 611: if ( ! macrowarn(m, ln, mac))
612: goto err;
613: return(1);
1.53 kristaps 614: }
1.1 kristaps 615:
1.53 kristaps 616: /* The macro is sane. Jump to the next word. */
1.1 kristaps 617:
1.65 kristaps 618: while (buf[i] && ' ' == buf[i])
1.53 kristaps 619: i++;
1.1 kristaps 620:
1.53 kristaps 621: /* Begin recursive parse sequence. */
1.1 kristaps 622:
1.53 kristaps 623: if ( ! mdoc_macro(m, c, ln, 1, &i, buf))
624: goto err;
1.1 kristaps 625:
1.53 kristaps 626: return(1);
1.1 kristaps 627:
1.53 kristaps 628: err: /* Error out. */
1.1 kristaps 629:
1.53 kristaps 630: m->flags |= MDOC_HALT;
631: return(0);
1.1 kristaps 632: }
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