Annotation of mandoc/man.c, Revision 1.96
1.96 ! kristaps 1: /* $Id: man.c,v 1.95 2011/01/01 13:54:58 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:
1.16 kristaps 47: static struct man_node *man_node_alloc(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:
1.96 ! kristaps 132: assert( ! (MAN_HALT & m->flags));
1.72 kristaps 133: return(('.' == buf[offs] || '\'' == buf[offs]) ?
1.79 kristaps 134: man_pmacro(m, ln, buf, offs) :
1.72 kristaps 135: man_ptext(m, ln, buf, offs));
1.1 kristaps 136: }
137:
138:
1.2 kristaps 139: static void
140: man_free1(struct man *man)
141: {
142:
143: if (man->first)
1.54 kristaps 144: man_node_delete(man, man->first);
1.2 kristaps 145: if (man->meta.title)
146: free(man->meta.title);
1.6 kristaps 147: if (man->meta.source)
148: free(man->meta.source);
1.75 kristaps 149: if (man->meta.rawdate)
150: free(man->meta.rawdate);
1.2 kristaps 151: if (man->meta.vol)
152: free(man->meta.vol);
1.68 kristaps 153: if (man->meta.msec)
154: free(man->meta.msec);
1.2 kristaps 155: }
156:
157:
1.45 kristaps 158: static void
1.2 kristaps 159: man_alloc1(struct man *m)
160: {
161:
1.44 kristaps 162: memset(&m->meta, 0, sizeof(struct man_meta));
1.2 kristaps 163: m->flags = 0;
1.45 kristaps 164: m->last = mandoc_calloc(1, sizeof(struct man_node));
1.2 kristaps 165: m->first = m->last;
166: m->last->type = MAN_ROOT;
1.54 kristaps 167: m->last->tok = MAN_MAX;
1.2 kristaps 168: m->next = MAN_NEXT_CHILD;
169: }
170:
171:
1.1 kristaps 172: static int
173: man_node_append(struct man *man, struct man_node *p)
174: {
175:
176: assert(man->last);
177: assert(man->first);
178: assert(MAN_ROOT != p->type);
179:
180: switch (man->next) {
181: case (MAN_NEXT_SIBLING):
182: man->last->next = p;
183: p->prev = man->last;
184: p->parent = man->last->parent;
185: break;
186: case (MAN_NEXT_CHILD):
187: man->last->child = p;
188: p->parent = man->last;
189: break;
190: default:
191: abort();
192: /* NOTREACHED */
193: }
1.22 kristaps 194:
1.54 kristaps 195: assert(p->parent);
1.22 kristaps 196: p->parent->nchild++;
1.1 kristaps 197:
1.29 kristaps 198: if ( ! man_valid_pre(man, p))
199: return(0);
200:
201: switch (p->type) {
202: case (MAN_HEAD):
203: assert(MAN_BLOCK == p->parent->type);
204: p->parent->head = p;
205: break;
206: case (MAN_BODY):
207: assert(MAN_BLOCK == p->parent->type);
208: p->parent->body = p;
209: break;
210: default:
211: break;
212: }
213:
1.2 kristaps 214: man->last = p;
215:
1.1 kristaps 216: switch (p->type) {
1.94 kristaps 217: case (MAN_TBL):
218: /* FALLTHROUGH */
1.2 kristaps 219: case (MAN_TEXT):
220: if ( ! man_valid_post(man))
221: return(0);
1.1 kristaps 222: break;
223: default:
224: break;
225: }
226:
227: return(1);
228: }
229:
230:
231: static struct man_node *
1.53 kristaps 232: man_node_alloc(int line, int pos, enum man_type type, enum mant tok)
1.1 kristaps 233: {
234: struct man_node *p;
235:
1.45 kristaps 236: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 237: p->line = line;
238: p->pos = pos;
239: p->type = type;
1.16 kristaps 240: p->tok = tok;
1.1 kristaps 241: return(p);
242: }
243:
244:
245: int
1.53 kristaps 246: man_elem_alloc(struct man *m, int line, int pos, enum mant tok)
1.1 kristaps 247: {
248: struct man_node *p;
249:
1.16 kristaps 250: p = man_node_alloc(line, pos, MAN_ELEM, tok);
1.30 kristaps 251: if ( ! man_node_append(m, p))
252: return(0);
253: m->next = MAN_NEXT_CHILD;
254: return(1);
1.1 kristaps 255: }
256:
257:
258: int
1.53 kristaps 259: man_head_alloc(struct man *m, int line, int pos, enum mant tok)
1.29 kristaps 260: {
261: struct man_node *p;
262:
263: p = man_node_alloc(line, pos, MAN_HEAD, tok);
264: if ( ! man_node_append(m, p))
265: return(0);
266: m->next = MAN_NEXT_CHILD;
267: return(1);
268: }
269:
270:
271: int
1.53 kristaps 272: man_body_alloc(struct man *m, int line, int pos, enum mant tok)
1.29 kristaps 273: {
274: struct man_node *p;
275:
276: p = man_node_alloc(line, pos, MAN_BODY, tok);
277: if ( ! man_node_append(m, p))
278: return(0);
279: m->next = MAN_NEXT_CHILD;
280: return(1);
281: }
282:
283:
284: int
1.53 kristaps 285: man_block_alloc(struct man *m, int line, int pos, enum mant tok)
1.29 kristaps 286: {
287: struct man_node *p;
288:
289: p = man_node_alloc(line, pos, MAN_BLOCK, tok);
290: if ( ! man_node_append(m, p))
291: return(0);
292: m->next = MAN_NEXT_CHILD;
293: return(1);
294: }
295:
1.94 kristaps 296: static int
297: man_span_alloc(struct man *m, const struct tbl_span *span)
298: {
299: struct man_node *n;
300:
301: /* FIXME: grab from span */
302: n = man_node_alloc(0, 0, MAN_TBL, MAN_MAX);
1.95 kristaps 303: n->span = span;
1.94 kristaps 304:
305: if ( ! man_node_append(m, n))
306: return(0);
307:
308: m->next = MAN_NEXT_SIBLING;
309: return(1);
310: }
1.29 kristaps 311:
1.61 kristaps 312: int
313: man_word_alloc(struct man *m, int line, int pos, const char *word)
1.1 kristaps 314: {
1.31 kristaps 315: struct man_node *n;
1.61 kristaps 316: size_t sv, len;
317:
318: len = strlen(word);
1.1 kristaps 319:
1.53 kristaps 320: n = man_node_alloc(line, pos, MAN_TEXT, MAN_MAX);
1.45 kristaps 321: n->string = mandoc_malloc(len + 1);
1.61 kristaps 322: sv = strlcpy(n->string, word, len + 1);
1.31 kristaps 323:
324: /* Prohibit truncation. */
325: assert(sv < len + 1);
326:
327: if ( ! man_node_append(m, n))
1.30 kristaps 328: return(0);
1.61 kristaps 329:
1.30 kristaps 330: m->next = MAN_NEXT_SIBLING;
331: return(1);
1.1 kristaps 332: }
333:
334:
1.54 kristaps 335: /*
336: * Free all of the resources held by a node. This does NOT unlink a
337: * node from its context; for that, see man_node_unlink().
338: */
339: static void
1.1 kristaps 340: man_node_free(struct man_node *p)
341: {
342:
343: if (p->string)
344: free(p->string);
345: free(p);
346: }
347:
348:
349: void
1.54 kristaps 350: man_node_delete(struct man *m, struct man_node *p)
1.1 kristaps 351: {
352:
1.54 kristaps 353: while (p->child)
354: man_node_delete(m, p->child);
355:
356: man_node_unlink(m, p);
1.1 kristaps 357: man_node_free(p);
358: }
359:
360:
1.94 kristaps 361: int
362: man_addspan(struct man *m, const struct tbl_span *sp)
363: {
364:
1.96 ! kristaps 365: assert( ! (MAN_HALT & m->flags));
1.94 kristaps 366: if ( ! man_span_alloc(m, sp))
367: return(0);
368: return(man_descope(m, 0, 0));
369: }
370:
371: static int
372: man_descope(struct man *m, int line, int offs)
373: {
374: /*
375: * Co-ordinate what happens with having a next-line scope open:
376: * first close out the element scope (if applicable), then close
377: * out the block scope (also if applicable).
378: */
379:
380: if (MAN_ELINE & m->flags) {
381: m->flags &= ~MAN_ELINE;
382: if ( ! man_unscope(m, m->last->parent, MANDOCERR_MAX))
383: return(0);
384: }
385:
386: if ( ! (MAN_BLINE & m->flags))
387: return(1);
388: m->flags &= ~MAN_BLINE;
389:
390: if ( ! man_unscope(m, m->last->parent, MANDOCERR_MAX))
391: return(0);
392: return(man_body_alloc(m, line, offs, m->last->tok));
393: }
394:
395:
1.1 kristaps 396: static int
1.72 kristaps 397: man_ptext(struct man *m, int line, char *buf, int offs)
1.1 kristaps 398: {
1.61 kristaps 399: int i;
1.60 kristaps 400:
401: /* Ignore bogus comments. */
402:
1.72 kristaps 403: if ('\\' == buf[offs] &&
404: '.' == buf[offs + 1] &&
1.93 kristaps 405: '"' == buf[offs + 2]) {
406: man_pmsg(m, line, offs, MANDOCERR_BADCOMMENT);
407: return(1);
408: }
1.31 kristaps 409:
1.35 kristaps 410: /* Literal free-form text whitespace is preserved. */
411:
412: if (MAN_LITERAL & m->flags) {
1.72 kristaps 413: if ( ! man_word_alloc(m, line, offs, buf + offs))
1.35 kristaps 414: return(0);
1.94 kristaps 415: return(man_descope(m, line, offs));
1.35 kristaps 416: }
417:
1.61 kristaps 418: /* Pump blank lines directly into the backend. */
1.31 kristaps 419:
1.72 kristaps 420: for (i = offs; ' ' == buf[i]; i++)
1.31 kristaps 421: /* Skip leading whitespace. */ ;
1.48 kristaps 422:
1.49 kristaps 423: if ('\0' == buf[i]) {
1.61 kristaps 424: /* Allocate a blank entry. */
1.72 kristaps 425: if ( ! man_word_alloc(m, line, offs, ""))
1.31 kristaps 426: return(0);
1.94 kristaps 427: return(man_descope(m, line, offs));
1.31 kristaps 428: }
429:
1.63 kristaps 430: /*
431: * Warn if the last un-escaped character is whitespace. Then
432: * strip away the remaining spaces (tabs stay!).
433: */
1.29 kristaps 434:
1.61 kristaps 435: i = (int)strlen(buf);
436: assert(i);
1.49 kristaps 437:
1.63 kristaps 438: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
1.64 kristaps 439: if (i > 1 && '\\' != buf[i - 2])
1.93 kristaps 440: man_pmsg(m, line, i - 1, MANDOCERR_EOLNSPACE);
1.63 kristaps 441:
442: for (--i; i && ' ' == buf[i]; i--)
443: /* Spin back to non-space. */ ;
444:
445: /* Jump ahead of escaped whitespace. */
446: i += '\\' == buf[i] ? 2 : 1;
447:
448: buf[i] = '\0';
449: }
1.49 kristaps 450:
1.72 kristaps 451: if ( ! man_word_alloc(m, line, offs, buf + offs))
1.1 kristaps 452: return(0);
1.65 kristaps 453:
454: /*
455: * End-of-sentence check. If the last character is an unescaped
456: * EOS character, then flag the node as being the end of a
457: * sentence. The front-end will know how to interpret this.
458: */
1.67 kristaps 459:
1.65 kristaps 460: assert(i);
1.83 schwarze 461: if (mandoc_eos(buf, (size_t)i, 0))
1.65 kristaps 462: m->last->flags |= MAN_EOS;
1.31 kristaps 463:
1.94 kristaps 464: return(man_descope(m, line, offs));
1.1 kristaps 465: }
466:
467:
1.96 ! kristaps 468: static int
1.79 kristaps 469: man_pmacro(struct man *m, int ln, char *buf, int offs)
1.1 kristaps 470: {
1.58 kristaps 471: int i, j, ppos;
1.53 kristaps 472: enum mant tok;
1.34 kristaps 473: char mac[5];
474: struct man_node *n;
1.1 kristaps 475:
476: /* Comments and empties are quickly ignored. */
477:
1.72 kristaps 478: offs++;
479:
480: if ('\0' == buf[offs])
1.46 kristaps 481: return(1);
1.1 kristaps 482:
1.72 kristaps 483: i = offs;
1.9 kristaps 484:
1.56 kristaps 485: /*
486: * Skip whitespace between the control character and initial
487: * text. "Whitespace" is both spaces and tabs.
488: */
1.62 kristaps 489:
1.57 kristaps 490: if (' ' == buf[i] || '\t' == buf[i]) {
1.9 kristaps 491: i++;
1.56 kristaps 492: while (buf[i] && (' ' == buf[i] || '\t' == buf[i]))
1.1 kristaps 493: i++;
1.48 kristaps 494: if ('\0' == buf[i])
1.11 kristaps 495: goto out;
1.1 kristaps 496: }
497:
1.10 kristaps 498: ppos = i;
499:
1.86 schwarze 500: /*
501: * Copy the first word into a nil-terminated buffer.
502: * Stop copying when a tab, space, or eoln is encountered.
503: */
1.1 kristaps 504:
1.86 schwarze 505: j = 0;
506: while (j < 4 && '\0' != buf[i] && ' ' != buf[i] && '\t' != buf[i])
507: mac[j++] = buf[i++];
1.46 kristaps 508: mac[j] = '\0';
1.1 kristaps 509:
1.87 schwarze 510: tok = (j > 0 && j < 4) ? man_hash_find(mac) : MAN_MAX;
511: if (MAN_MAX == tok) {
1.90 kristaps 512: man_vmsg(m, MANDOCERR_MACRO, ln, ppos, "%s", buf + ppos - 1);
1.12 kristaps 513: return(1);
1.1 kristaps 514: }
515:
516: /* The macro is sane. Jump to the next word. */
517:
518: while (buf[i] && ' ' == buf[i])
519: i++;
520:
1.62 kristaps 521: /*
522: * Trailing whitespace. Note that tabs are allowed to be passed
523: * into the parser as "text", so we only warn about spaces here.
524: */
1.48 kristaps 525:
526: if ('\0' == buf[i] && ' ' == buf[i - 1])
1.93 kristaps 527: man_pmsg(m, ln, i - 1, MANDOCERR_EOLNSPACE);
1.48 kristaps 528:
1.50 kristaps 529: /*
1.90 kristaps 530: * Remove prior ELINE macro, as it's being clobbered by a new
1.51 kristaps 531: * macro. Note that NSCOPED macros do not close out ELINE
532: * macros---they don't print text---so we let those slip by.
1.50 kristaps 533: */
1.34 kristaps 534:
1.53 kristaps 535: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.51 kristaps 536: m->flags & MAN_ELINE) {
1.90 kristaps 537: n = m->last;
538: assert(MAN_TEXT != n->type);
1.51 kristaps 539:
1.90 kristaps 540: /* Remove repeated NSCOPED macros causing ELINE. */
1.51 kristaps 541:
1.90 kristaps 542: if (MAN_NSCOPED & man_macros[n->tok].flags)
543: n = n->parent;
1.51 kristaps 544:
1.90 kristaps 545: man_vmsg(m, MANDOCERR_LINESCOPE, n->line, n->pos,
546: "%s", man_macronames[n->tok]);
1.34 kristaps 547:
1.54 kristaps 548: man_node_delete(m, n);
1.34 kristaps 549: m->flags &= ~MAN_ELINE;
550: }
551:
1.59 kristaps 552: /*
553: * Save the fact that we're in the next-line for a block. In
554: * this way, embedded roff instructions can "remember" state
555: * when they exit.
556: */
557:
558: if (MAN_BLINE & m->flags)
559: m->flags |= MAN_BPLINE;
560:
561: /* Call to handler... */
1.1 kristaps 562:
1.53 kristaps 563: assert(man_macros[tok].fp);
1.79 kristaps 564: if ( ! (*man_macros[tok].fp)(m, tok, ln, ppos, &i, buf))
1.1 kristaps 565: goto err;
566:
1.11 kristaps 567: out:
1.50 kristaps 568: /*
569: * We weren't in a block-line scope when entering the
570: * above-parsed macro, so return.
571: */
572:
1.58 kristaps 573: if ( ! (MAN_BPLINE & m->flags)) {
1.50 kristaps 574: m->flags &= ~MAN_ILINE;
1.29 kristaps 575: return(1);
1.50 kristaps 576: }
1.58 kristaps 577: m->flags &= ~MAN_BPLINE;
1.50 kristaps 578:
579: /*
580: * If we're in a block scope, then allow this macro to slip by
581: * without closing scope around it.
582: */
583:
584: if (MAN_ILINE & m->flags) {
585: m->flags &= ~MAN_ILINE;
586: return(1);
587: }
1.29 kristaps 588:
589: /*
590: * If we've opened a new next-line element scope, then return
591: * now, as the next line will close out the block scope.
592: */
593:
594: if (MAN_ELINE & m->flags)
595: return(1);
596:
597: /* Close out the block scope opened in the prior line. */
1.11 kristaps 598:
1.29 kristaps 599: assert(MAN_BLINE & m->flags);
600: m->flags &= ~MAN_BLINE;
1.11 kristaps 601:
1.74 kristaps 602: if ( ! man_unscope(m, m->last->parent, MANDOCERR_MAX))
1.29 kristaps 603: return(0);
1.72 kristaps 604: return(man_body_alloc(m, ln, offs, m->last->tok));
1.1 kristaps 605:
606: err: /* Error out. */
607:
1.2 kristaps 608: m->flags |= MAN_HALT;
1.1 kristaps 609: return(0);
610: }
1.3 kristaps 611:
1.4 kristaps 612:
613: int
1.74 kristaps 614: man_vmsg(struct man *man, enum mandocerr t,
615: int ln, int pos, const char *fmt, ...)
1.4 kristaps 616: {
617: char buf[256];
618: va_list ap;
619:
620: va_start(ap, fmt);
1.74 kristaps 621: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
1.4 kristaps 622: va_end(ap);
1.74 kristaps 623: return((*man->msg)(t, man->data, ln, pos, buf));
1.51 kristaps 624: }
625:
626:
1.54 kristaps 627: /*
628: * Unlink a node from its context. If "m" is provided, the last parse
629: * point will also be adjusted accordingly.
630: */
631: static void
1.51 kristaps 632: man_node_unlink(struct man *m, struct man_node *n)
633: {
634:
1.54 kristaps 635: /* Adjust siblings. */
636:
637: if (n->prev)
1.51 kristaps 638: n->prev->next = n->next;
1.54 kristaps 639: if (n->next)
640: n->next->prev = n->prev;
641:
642: /* Adjust parent. */
643:
644: if (n->parent) {
645: n->parent->nchild--;
646: if (n->parent->child == n)
647: n->parent->child = n->prev ? n->prev : n->next;
648: }
649:
650: /* Adjust parse point, if applicable. */
651:
652: if (m && m->last == n) {
653: /*XXX: this can occur when bailing from validation. */
654: /*assert(NULL == n->next);*/
655: if (n->prev) {
1.51 kristaps 656: m->last = n->prev;
657: m->next = MAN_NEXT_SIBLING;
1.54 kristaps 658: } else {
1.51 kristaps 659: m->last = n->parent;
660: m->next = MAN_NEXT_CHILD;
661: }
662: }
663:
1.54 kristaps 664: if (m && m->first == n)
665: m->first = NULL;
1.23 kristaps 666: }
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