Annotation of mandoc/man.c, Revision 1.97
1.97 ! kristaps 1: /* $Id: man.c,v 1.96 2011/01/03 11:31:26 kristaps Exp $ */
1.1 kristaps 2: /*
1.82 schwarze 3: * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.18 kristaps 6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 8: *
1.18 kristaps 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 16: */
1.47 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.41 kristaps 21: #include <sys/types.h>
22:
1.1 kristaps 23: #include <assert.h>
24: #include <stdarg.h>
25: #include <stdlib.h>
26: #include <stdio.h>
27: #include <string.h>
28:
1.74 kristaps 29: #include "mandoc.h"
1.1 kristaps 30: #include "libman.h"
1.45 kristaps 31: #include "libmandoc.h"
1.1 kristaps 32:
33: const char *const __man_macronames[MAN_MAX] = {
1.21 kristaps 34: "br", "TH", "SH", "SS",
1.1 kristaps 35: "TP", "LP", "PP", "P",
36: "IP", "HP", "SM", "SB",
37: "BI", "IB", "BR", "RB",
1.11 kristaps 38: "R", "B", "I", "IR",
1.92 kristaps 39: "RI", "na", "sp", "nf",
40: "fi", "RE", "RS", "DT",
41: "UC", "PD", "AT", "in",
42: "ft"
1.1 kristaps 43: };
44:
45: const char * const *man_macronames = __man_macronames;
46:
1.97 ! kristaps 47: static struct man_node *man_node_alloc(struct man *, int, int,
1.53 kristaps 48: enum man_type, enum mant);
1.1 kristaps 49: static int man_node_append(struct man *,
50: struct man_node *);
1.94 kristaps 51: static int man_span_alloc(struct man *,
52: const struct tbl_span *);
1.54 kristaps 53: static void man_node_free(struct man_node *);
54: static void man_node_unlink(struct man *,
55: struct man_node *);
1.72 kristaps 56: static int man_ptext(struct man *, int, char *, int);
1.79 kristaps 57: static int man_pmacro(struct man *, int, char *, int);
1.2 kristaps 58: static void man_free1(struct man *);
1.45 kristaps 59: static void man_alloc1(struct man *);
1.94 kristaps 60: static int man_descope(struct man *, int, int);
1.1 kristaps 61:
62:
63: const struct man_node *
1.2 kristaps 64: man_node(const struct man *m)
1.1 kristaps 65: {
66:
1.96 kristaps 67: assert( ! (MAN_HALT & m->flags));
68: return(m->first);
1.1 kristaps 69: }
70:
71:
72: const struct man_meta *
1.2 kristaps 73: man_meta(const struct man *m)
1.1 kristaps 74: {
75:
1.96 kristaps 76: assert( ! (MAN_HALT & m->flags));
77: return(&m->meta);
1.1 kristaps 78: }
79:
80:
1.45 kristaps 81: void
1.1 kristaps 82: man_reset(struct man *man)
83: {
84:
1.2 kristaps 85: man_free1(man);
1.45 kristaps 86: man_alloc1(man);
1.1 kristaps 87: }
88:
89:
90: void
91: man_free(struct man *man)
92: {
93:
1.2 kristaps 94: man_free1(man);
1.1 kristaps 95: free(man);
96: }
97:
98:
99: struct man *
1.87 schwarze 100: man_alloc(struct regset *regs, void *data, mandocmsg msg)
1.1 kristaps 101: {
102: struct man *p;
103:
1.45 kristaps 104: p = mandoc_calloc(1, sizeof(struct man));
1.2 kristaps 105:
1.40 kristaps 106: man_hash_init();
1.4 kristaps 107: p->data = data;
1.74 kristaps 108: p->msg = msg;
1.79 kristaps 109: p->regs = regs;
1.45 kristaps 110:
111: man_alloc1(p);
1.1 kristaps 112: return(p);
113: }
114:
115:
116: int
117: man_endparse(struct man *m)
118: {
119:
1.96 kristaps 120: assert( ! (MAN_HALT & m->flags));
121: if (man_macroend(m))
1.3 kristaps 122: return(1);
123: m->flags |= MAN_HALT;
124: return(0);
1.1 kristaps 125: }
126:
127:
128: int
1.79 kristaps 129: man_parseln(struct man *m, int ln, char *buf, int offs)
1.1 kristaps 130: {
131:
1.97 ! kristaps 132: m->flags |= MAN_NEWLINE;
! 133:
1.96 kristaps 134: assert( ! (MAN_HALT & m->flags));
1.72 kristaps 135: return(('.' == buf[offs] || '\'' == buf[offs]) ?
1.79 kristaps 136: man_pmacro(m, ln, buf, offs) :
1.72 kristaps 137: man_ptext(m, ln, buf, offs));
1.1 kristaps 138: }
139:
140:
1.2 kristaps 141: static void
142: man_free1(struct man *man)
143: {
144:
145: if (man->first)
1.54 kristaps 146: man_node_delete(man, man->first);
1.2 kristaps 147: if (man->meta.title)
148: free(man->meta.title);
1.6 kristaps 149: if (man->meta.source)
150: free(man->meta.source);
1.75 kristaps 151: if (man->meta.rawdate)
152: free(man->meta.rawdate);
1.2 kristaps 153: if (man->meta.vol)
154: free(man->meta.vol);
1.68 kristaps 155: if (man->meta.msec)
156: free(man->meta.msec);
1.2 kristaps 157: }
158:
159:
1.45 kristaps 160: static void
1.2 kristaps 161: man_alloc1(struct man *m)
162: {
163:
1.44 kristaps 164: memset(&m->meta, 0, sizeof(struct man_meta));
1.2 kristaps 165: m->flags = 0;
1.45 kristaps 166: m->last = mandoc_calloc(1, sizeof(struct man_node));
1.2 kristaps 167: m->first = m->last;
168: m->last->type = MAN_ROOT;
1.54 kristaps 169: m->last->tok = MAN_MAX;
1.2 kristaps 170: m->next = MAN_NEXT_CHILD;
171: }
172:
173:
1.1 kristaps 174: static int
175: man_node_append(struct man *man, struct man_node *p)
176: {
177:
178: assert(man->last);
179: assert(man->first);
180: assert(MAN_ROOT != p->type);
181:
182: switch (man->next) {
183: case (MAN_NEXT_SIBLING):
184: man->last->next = p;
185: p->prev = man->last;
186: p->parent = man->last->parent;
187: break;
188: case (MAN_NEXT_CHILD):
189: man->last->child = p;
190: p->parent = man->last;
191: break;
192: default:
193: abort();
194: /* NOTREACHED */
195: }
1.22 kristaps 196:
1.54 kristaps 197: assert(p->parent);
1.22 kristaps 198: p->parent->nchild++;
1.1 kristaps 199:
1.29 kristaps 200: if ( ! man_valid_pre(man, p))
201: return(0);
202:
203: switch (p->type) {
204: case (MAN_HEAD):
205: assert(MAN_BLOCK == p->parent->type);
206: p->parent->head = p;
207: break;
208: case (MAN_BODY):
209: assert(MAN_BLOCK == p->parent->type);
210: p->parent->body = p;
211: break;
212: default:
213: break;
214: }
215:
1.2 kristaps 216: man->last = p;
217:
1.1 kristaps 218: switch (p->type) {
1.94 kristaps 219: case (MAN_TBL):
220: /* FALLTHROUGH */
1.2 kristaps 221: case (MAN_TEXT):
222: if ( ! man_valid_post(man))
223: return(0);
1.1 kristaps 224: break;
225: default:
226: break;
227: }
228:
229: return(1);
230: }
231:
232:
233: static struct man_node *
1.97 ! kristaps 234: man_node_alloc(struct man *m, int line, int pos,
! 235: enum man_type type, enum mant tok)
1.1 kristaps 236: {
237: struct man_node *p;
238:
1.45 kristaps 239: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 240: p->line = line;
241: p->pos = pos;
242: p->type = type;
1.16 kristaps 243: p->tok = tok;
1.97 ! kristaps 244:
! 245: if (MAN_NEWLINE & m->flags)
! 246: p->flags |= MAN_LINE;
! 247: m->flags &= ~MAN_NEWLINE;
1.1 kristaps 248: return(p);
249: }
250:
251:
252: int
1.53 kristaps 253: man_elem_alloc(struct man *m, int line, int pos, enum mant tok)
1.1 kristaps 254: {
255: struct man_node *p;
256:
1.97 ! kristaps 257: p = man_node_alloc(m, line, pos, MAN_ELEM, tok);
1.30 kristaps 258: if ( ! man_node_append(m, p))
259: return(0);
260: m->next = MAN_NEXT_CHILD;
261: return(1);
1.1 kristaps 262: }
263:
264:
265: int
1.53 kristaps 266: man_head_alloc(struct man *m, int line, int pos, enum mant tok)
1.29 kristaps 267: {
268: struct man_node *p;
269:
1.97 ! kristaps 270: p = man_node_alloc(m, line, pos, MAN_HEAD, tok);
1.29 kristaps 271: if ( ! man_node_append(m, p))
272: return(0);
273: m->next = MAN_NEXT_CHILD;
274: return(1);
275: }
276:
277:
278: int
1.53 kristaps 279: man_body_alloc(struct man *m, int line, int pos, enum mant tok)
1.29 kristaps 280: {
281: struct man_node *p;
282:
1.97 ! kristaps 283: p = man_node_alloc(m, line, pos, MAN_BODY, tok);
1.29 kristaps 284: if ( ! man_node_append(m, p))
285: return(0);
286: m->next = MAN_NEXT_CHILD;
287: return(1);
288: }
289:
290:
291: int
1.53 kristaps 292: man_block_alloc(struct man *m, int line, int pos, enum mant tok)
1.29 kristaps 293: {
294: struct man_node *p;
295:
1.97 ! kristaps 296: p = man_node_alloc(m, line, pos, MAN_BLOCK, tok);
1.29 kristaps 297: if ( ! man_node_append(m, p))
298: return(0);
299: m->next = MAN_NEXT_CHILD;
300: return(1);
301: }
302:
1.94 kristaps 303: static int
304: man_span_alloc(struct man *m, const struct tbl_span *span)
305: {
306: struct man_node *n;
307:
308: /* FIXME: grab from span */
1.97 ! kristaps 309: n = man_node_alloc(m, 0, 0, MAN_TBL, MAN_MAX);
1.95 kristaps 310: n->span = span;
1.94 kristaps 311:
312: if ( ! man_node_append(m, n))
313: return(0);
314:
315: m->next = MAN_NEXT_SIBLING;
316: return(1);
317: }
1.29 kristaps 318:
1.61 kristaps 319: int
320: man_word_alloc(struct man *m, int line, int pos, const char *word)
1.1 kristaps 321: {
1.31 kristaps 322: struct man_node *n;
1.61 kristaps 323: size_t sv, len;
324:
325: len = strlen(word);
1.1 kristaps 326:
1.97 ! kristaps 327: n = man_node_alloc(m, line, pos, MAN_TEXT, MAN_MAX);
1.45 kristaps 328: n->string = mandoc_malloc(len + 1);
1.61 kristaps 329: sv = strlcpy(n->string, word, len + 1);
1.31 kristaps 330:
331: /* Prohibit truncation. */
332: assert(sv < len + 1);
333:
334: if ( ! man_node_append(m, n))
1.30 kristaps 335: return(0);
1.61 kristaps 336:
1.30 kristaps 337: m->next = MAN_NEXT_SIBLING;
338: return(1);
1.1 kristaps 339: }
340:
341:
1.54 kristaps 342: /*
343: * Free all of the resources held by a node. This does NOT unlink a
344: * node from its context; for that, see man_node_unlink().
345: */
346: static void
1.1 kristaps 347: man_node_free(struct man_node *p)
348: {
349:
350: if (p->string)
351: free(p->string);
352: free(p);
353: }
354:
355:
356: void
1.54 kristaps 357: man_node_delete(struct man *m, struct man_node *p)
1.1 kristaps 358: {
359:
1.54 kristaps 360: while (p->child)
361: man_node_delete(m, p->child);
362:
363: man_node_unlink(m, p);
1.1 kristaps 364: man_node_free(p);
365: }
366:
367:
1.94 kristaps 368: int
369: man_addspan(struct man *m, const struct tbl_span *sp)
370: {
371:
1.96 kristaps 372: assert( ! (MAN_HALT & m->flags));
1.94 kristaps 373: if ( ! man_span_alloc(m, sp))
374: return(0);
375: return(man_descope(m, 0, 0));
376: }
377:
378: static int
379: man_descope(struct man *m, int line, int offs)
380: {
381: /*
382: * Co-ordinate what happens with having a next-line scope open:
383: * first close out the element scope (if applicable), then close
384: * out the block scope (also if applicable).
385: */
386:
387: if (MAN_ELINE & m->flags) {
388: m->flags &= ~MAN_ELINE;
389: if ( ! man_unscope(m, m->last->parent, MANDOCERR_MAX))
390: return(0);
391: }
392:
393: if ( ! (MAN_BLINE & m->flags))
394: return(1);
395: m->flags &= ~MAN_BLINE;
396:
397: if ( ! man_unscope(m, m->last->parent, MANDOCERR_MAX))
398: return(0);
399: return(man_body_alloc(m, line, offs, m->last->tok));
400: }
401:
402:
1.1 kristaps 403: static int
1.72 kristaps 404: man_ptext(struct man *m, int line, char *buf, int offs)
1.1 kristaps 405: {
1.61 kristaps 406: int i;
1.60 kristaps 407:
408: /* Ignore bogus comments. */
409:
1.72 kristaps 410: if ('\\' == buf[offs] &&
411: '.' == buf[offs + 1] &&
1.93 kristaps 412: '"' == buf[offs + 2]) {
413: man_pmsg(m, line, offs, MANDOCERR_BADCOMMENT);
414: return(1);
415: }
1.31 kristaps 416:
1.35 kristaps 417: /* Literal free-form text whitespace is preserved. */
418:
419: if (MAN_LITERAL & m->flags) {
1.72 kristaps 420: if ( ! man_word_alloc(m, line, offs, buf + offs))
1.35 kristaps 421: return(0);
1.94 kristaps 422: return(man_descope(m, line, offs));
1.35 kristaps 423: }
424:
1.61 kristaps 425: /* Pump blank lines directly into the backend. */
1.31 kristaps 426:
1.72 kristaps 427: for (i = offs; ' ' == buf[i]; i++)
1.31 kristaps 428: /* Skip leading whitespace. */ ;
1.48 kristaps 429:
1.49 kristaps 430: if ('\0' == buf[i]) {
1.61 kristaps 431: /* Allocate a blank entry. */
1.72 kristaps 432: if ( ! man_word_alloc(m, line, offs, ""))
1.31 kristaps 433: return(0);
1.94 kristaps 434: return(man_descope(m, line, offs));
1.31 kristaps 435: }
436:
1.63 kristaps 437: /*
438: * Warn if the last un-escaped character is whitespace. Then
439: * strip away the remaining spaces (tabs stay!).
440: */
1.29 kristaps 441:
1.61 kristaps 442: i = (int)strlen(buf);
443: assert(i);
1.49 kristaps 444:
1.63 kristaps 445: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
1.64 kristaps 446: if (i > 1 && '\\' != buf[i - 2])
1.93 kristaps 447: man_pmsg(m, line, i - 1, MANDOCERR_EOLNSPACE);
1.63 kristaps 448:
449: for (--i; i && ' ' == buf[i]; i--)
450: /* Spin back to non-space. */ ;
451:
452: /* Jump ahead of escaped whitespace. */
453: i += '\\' == buf[i] ? 2 : 1;
454:
455: buf[i] = '\0';
456: }
1.49 kristaps 457:
1.72 kristaps 458: if ( ! man_word_alloc(m, line, offs, buf + offs))
1.1 kristaps 459: return(0);
1.65 kristaps 460:
461: /*
462: * End-of-sentence check. If the last character is an unescaped
463: * EOS character, then flag the node as being the end of a
464: * sentence. The front-end will know how to interpret this.
465: */
1.67 kristaps 466:
1.65 kristaps 467: assert(i);
1.83 schwarze 468: if (mandoc_eos(buf, (size_t)i, 0))
1.65 kristaps 469: m->last->flags |= MAN_EOS;
1.31 kristaps 470:
1.94 kristaps 471: return(man_descope(m, line, offs));
1.1 kristaps 472: }
473:
474:
1.96 kristaps 475: static int
1.79 kristaps 476: man_pmacro(struct man *m, int ln, char *buf, int offs)
1.1 kristaps 477: {
1.58 kristaps 478: int i, j, ppos;
1.53 kristaps 479: enum mant tok;
1.34 kristaps 480: char mac[5];
481: struct man_node *n;
1.1 kristaps 482:
483: /* Comments and empties are quickly ignored. */
484:
1.72 kristaps 485: offs++;
486:
487: if ('\0' == buf[offs])
1.46 kristaps 488: return(1);
1.1 kristaps 489:
1.72 kristaps 490: i = offs;
1.9 kristaps 491:
1.56 kristaps 492: /*
493: * Skip whitespace between the control character and initial
494: * text. "Whitespace" is both spaces and tabs.
495: */
1.62 kristaps 496:
1.57 kristaps 497: if (' ' == buf[i] || '\t' == buf[i]) {
1.9 kristaps 498: i++;
1.56 kristaps 499: while (buf[i] && (' ' == buf[i] || '\t' == buf[i]))
1.1 kristaps 500: i++;
1.48 kristaps 501: if ('\0' == buf[i])
1.11 kristaps 502: goto out;
1.1 kristaps 503: }
504:
1.10 kristaps 505: ppos = i;
506:
1.86 schwarze 507: /*
508: * Copy the first word into a nil-terminated buffer.
509: * Stop copying when a tab, space, or eoln is encountered.
510: */
1.1 kristaps 511:
1.86 schwarze 512: j = 0;
513: while (j < 4 && '\0' != buf[i] && ' ' != buf[i] && '\t' != buf[i])
514: mac[j++] = buf[i++];
1.46 kristaps 515: mac[j] = '\0';
1.1 kristaps 516:
1.87 schwarze 517: tok = (j > 0 && j < 4) ? man_hash_find(mac) : MAN_MAX;
518: if (MAN_MAX == tok) {
1.90 kristaps 519: man_vmsg(m, MANDOCERR_MACRO, ln, ppos, "%s", buf + ppos - 1);
1.12 kristaps 520: return(1);
1.1 kristaps 521: }
522:
523: /* The macro is sane. Jump to the next word. */
524:
525: while (buf[i] && ' ' == buf[i])
526: i++;
527:
1.62 kristaps 528: /*
529: * Trailing whitespace. Note that tabs are allowed to be passed
530: * into the parser as "text", so we only warn about spaces here.
531: */
1.48 kristaps 532:
533: if ('\0' == buf[i] && ' ' == buf[i - 1])
1.93 kristaps 534: man_pmsg(m, ln, i - 1, MANDOCERR_EOLNSPACE);
1.48 kristaps 535:
1.50 kristaps 536: /*
1.90 kristaps 537: * Remove prior ELINE macro, as it's being clobbered by a new
1.51 kristaps 538: * macro. Note that NSCOPED macros do not close out ELINE
539: * macros---they don't print text---so we let those slip by.
1.50 kristaps 540: */
1.34 kristaps 541:
1.53 kristaps 542: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.51 kristaps 543: m->flags & MAN_ELINE) {
1.90 kristaps 544: n = m->last;
545: assert(MAN_TEXT != n->type);
1.51 kristaps 546:
1.90 kristaps 547: /* Remove repeated NSCOPED macros causing ELINE. */
1.51 kristaps 548:
1.90 kristaps 549: if (MAN_NSCOPED & man_macros[n->tok].flags)
550: n = n->parent;
1.51 kristaps 551:
1.90 kristaps 552: man_vmsg(m, MANDOCERR_LINESCOPE, n->line, n->pos,
553: "%s", man_macronames[n->tok]);
1.34 kristaps 554:
1.54 kristaps 555: man_node_delete(m, n);
1.34 kristaps 556: m->flags &= ~MAN_ELINE;
557: }
558:
1.59 kristaps 559: /*
560: * Save the fact that we're in the next-line for a block. In
561: * this way, embedded roff instructions can "remember" state
562: * when they exit.
563: */
564:
565: if (MAN_BLINE & m->flags)
566: m->flags |= MAN_BPLINE;
567:
568: /* Call to handler... */
1.1 kristaps 569:
1.53 kristaps 570: assert(man_macros[tok].fp);
1.79 kristaps 571: if ( ! (*man_macros[tok].fp)(m, tok, ln, ppos, &i, buf))
1.1 kristaps 572: goto err;
573:
1.11 kristaps 574: out:
1.50 kristaps 575: /*
576: * We weren't in a block-line scope when entering the
577: * above-parsed macro, so return.
578: */
579:
1.58 kristaps 580: if ( ! (MAN_BPLINE & m->flags)) {
1.50 kristaps 581: m->flags &= ~MAN_ILINE;
1.29 kristaps 582: return(1);
1.50 kristaps 583: }
1.58 kristaps 584: m->flags &= ~MAN_BPLINE;
1.50 kristaps 585:
586: /*
587: * If we're in a block scope, then allow this macro to slip by
588: * without closing scope around it.
589: */
590:
591: if (MAN_ILINE & m->flags) {
592: m->flags &= ~MAN_ILINE;
593: return(1);
594: }
1.29 kristaps 595:
596: /*
597: * If we've opened a new next-line element scope, then return
598: * now, as the next line will close out the block scope.
599: */
600:
601: if (MAN_ELINE & m->flags)
602: return(1);
603:
604: /* Close out the block scope opened in the prior line. */
1.11 kristaps 605:
1.29 kristaps 606: assert(MAN_BLINE & m->flags);
607: m->flags &= ~MAN_BLINE;
1.11 kristaps 608:
1.74 kristaps 609: if ( ! man_unscope(m, m->last->parent, MANDOCERR_MAX))
1.29 kristaps 610: return(0);
1.72 kristaps 611: return(man_body_alloc(m, ln, offs, m->last->tok));
1.1 kristaps 612:
613: err: /* Error out. */
614:
1.2 kristaps 615: m->flags |= MAN_HALT;
1.1 kristaps 616: return(0);
617: }
1.3 kristaps 618:
1.4 kristaps 619:
620: int
1.74 kristaps 621: man_vmsg(struct man *man, enum mandocerr t,
622: int ln, int pos, const char *fmt, ...)
1.4 kristaps 623: {
624: char buf[256];
625: va_list ap;
626:
627: va_start(ap, fmt);
1.74 kristaps 628: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
1.4 kristaps 629: va_end(ap);
1.74 kristaps 630: return((*man->msg)(t, man->data, ln, pos, buf));
1.51 kristaps 631: }
632:
633:
1.54 kristaps 634: /*
635: * Unlink a node from its context. If "m" is provided, the last parse
636: * point will also be adjusted accordingly.
637: */
638: static void
1.51 kristaps 639: man_node_unlink(struct man *m, struct man_node *n)
640: {
641:
1.54 kristaps 642: /* Adjust siblings. */
643:
644: if (n->prev)
1.51 kristaps 645: n->prev->next = n->next;
1.54 kristaps 646: if (n->next)
647: n->next->prev = n->prev;
648:
649: /* Adjust parent. */
650:
651: if (n->parent) {
652: n->parent->nchild--;
653: if (n->parent->child == n)
654: n->parent->child = n->prev ? n->prev : n->next;
655: }
656:
657: /* Adjust parse point, if applicable. */
658:
659: if (m && m->last == n) {
660: /*XXX: this can occur when bailing from validation. */
661: /*assert(NULL == n->next);*/
662: if (n->prev) {
1.51 kristaps 663: m->last = n->prev;
664: m->next = MAN_NEXT_SIBLING;
1.54 kristaps 665: } else {
1.51 kristaps 666: m->last = n->parent;
667: m->next = MAN_NEXT_CHILD;
668: }
669: }
670:
1.54 kristaps 671: if (m && m->first == n)
672: m->first = NULL;
1.23 kristaps 673: }
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