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