Annotation of src/usr.bin/mandoc/man.c, Revision 1.75
1.75 ! schwarze 1: /* $Id: man.c,v 1.74 2014/01/06 00:53:14 schwarze Exp $ */
1.1 kristaps 2: /*
1.52 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.73 schwarze 4: * Copyright (c) 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
1.74 schwarze 5: * Copyright (c) 2011 Joerg Sonnenberger <joerg@netbsd.org>
1.1 kristaps 6: *
7: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 10: *
1.2 schwarze 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 18: */
1.14 schwarze 19: #include <sys/types.h>
20:
1.1 kristaps 21: #include <assert.h>
22: #include <stdarg.h>
23: #include <stdlib.h>
24: #include <stdio.h>
25: #include <string.h>
26:
1.59 schwarze 27: #include "man.h"
1.33 schwarze 28: #include "mandoc.h"
1.75 ! schwarze 29: #include "mandoc_aux.h"
1.1 kristaps 30: #include "libman.h"
1.16 schwarze 31: #include "libmandoc.h"
1.1 kristaps 32:
33: const char *const __man_macronames[MAN_MAX] = {
1.3 schwarze 34: "br", "TH", "SH", "SS",
1.1 kristaps 35: "TP", "LP", "PP", "P",
36: "IP", "HP", "SM", "SB",
37: "BI", "IB", "BR", "RB",
38: "R", "B", "I", "IR",
1.50 schwarze 39: "RI", "na", "sp", "nf",
40: "fi", "RE", "RS", "DT",
41: "UC", "PD", "AT", "in",
1.70 schwarze 42: "ft", "OP", "EX", "EE",
43: "UR", "UE"
1.1 kristaps 44: };
45:
46: const char * const *man_macronames = __man_macronames;
47:
1.54 schwarze 48: static struct man_node *man_node_alloc(struct man *, int, int,
1.22 schwarze 49: enum man_type, enum mant);
1.1 kristaps 50: static int man_node_append(struct man *,
51: struct man_node *);
1.22 schwarze 52: static void man_node_free(struct man_node *);
53: static void man_node_unlink(struct man *,
54: struct man_node *);
1.31 schwarze 55: static int man_ptext(struct man *, int, char *, int);
56: static int man_pmacro(struct man *, int, char *, int);
1.1 kristaps 57: static void man_free1(struct man *);
1.16 schwarze 58: static void man_alloc1(struct man *);
1.52 schwarze 59: static int man_descope(struct man *, int, int);
1.1 kristaps 60:
61:
62: const struct man_node *
1.69 schwarze 63: man_node(const struct man *man)
1.1 kristaps 64: {
65:
1.69 schwarze 66: assert( ! (MAN_HALT & man->flags));
67: return(man->first);
1.1 kristaps 68: }
69:
70:
71: const struct man_meta *
1.69 schwarze 72: man_meta(const struct man *man)
1.1 kristaps 73: {
74:
1.69 schwarze 75: assert( ! (MAN_HALT & man->flags));
76: return(&man->meta);
1.1 kristaps 77: }
78:
79:
1.16 schwarze 80: void
1.1 kristaps 81: man_reset(struct man *man)
82: {
83:
84: man_free1(man);
1.16 schwarze 85: man_alloc1(man);
1.1 kristaps 86: }
87:
88:
89: void
90: man_free(struct man *man)
91: {
92:
93: man_free1(man);
94: free(man);
95: }
96:
97:
98: struct man *
1.73 schwarze 99: man_alloc(struct roff *roff, struct mparse *parse, int quick)
1.1 kristaps 100: {
101: struct man *p;
102:
1.16 schwarze 103: p = mandoc_calloc(1, sizeof(struct man));
1.1 kristaps 104:
1.13 schwarze 105: man_hash_init();
1.59 schwarze 106: p->parse = parse;
1.73 schwarze 107: p->quick = quick;
1.60 schwarze 108: p->roff = roff;
1.16 schwarze 109:
110: man_alloc1(p);
1.1 kristaps 111: return(p);
112: }
113:
114:
115: int
1.69 schwarze 116: man_endparse(struct man *man)
1.1 kristaps 117: {
118:
1.69 schwarze 119: assert( ! (MAN_HALT & man->flags));
120: if (man_macroend(man))
1.1 kristaps 121: return(1);
1.69 schwarze 122: man->flags |= MAN_HALT;
1.1 kristaps 123: return(0);
124: }
125:
126:
127: int
1.69 schwarze 128: man_parseln(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 129: {
1.25 schwarze 130:
1.69 schwarze 131: man->flags |= MAN_NEWLINE;
1.54 schwarze 132:
1.69 schwarze 133: assert( ! (MAN_HALT & man->flags));
1.59 schwarze 134:
1.69 schwarze 135: return (roff_getcontrol(man->roff, buf, &offs) ?
136: man_pmacro(man, ln, buf, offs) :
137: man_ptext(man, ln, buf, offs));
1.1 kristaps 138: }
139:
140:
141: static void
142: man_free1(struct man *man)
143: {
144:
145: if (man->first)
1.22 schwarze 146: man_node_delete(man, man->first);
1.1 kristaps 147: if (man->meta.title)
148: free(man->meta.title);
149: if (man->meta.source)
150: free(man->meta.source);
1.56 schwarze 151: if (man->meta.date)
152: free(man->meta.date);
1.1 kristaps 153: if (man->meta.vol)
154: free(man->meta.vol);
1.29 schwarze 155: if (man->meta.msec)
156: free(man->meta.msec);
1.1 kristaps 157: }
158:
159:
1.16 schwarze 160: static void
1.69 schwarze 161: man_alloc1(struct man *man)
1.1 kristaps 162: {
163:
1.69 schwarze 164: memset(&man->meta, 0, sizeof(struct man_meta));
165: man->flags = 0;
166: man->last = mandoc_calloc(1, sizeof(struct man_node));
167: man->first = man->last;
168: man->last->type = MAN_ROOT;
169: man->last->tok = MAN_MAX;
170: man->next = MAN_NEXT_CHILD;
1.1 kristaps 171: }
172:
173:
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: }
1.5 schwarze 196:
1.22 schwarze 197: assert(p->parent);
1.5 schwarze 198: p->parent->nchild++;
1.1 kristaps 199:
1.9 schwarze 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;
1.59 schwarze 208: case (MAN_TAIL):
209: assert(MAN_BLOCK == p->parent->type);
210: p->parent->tail = p;
211: break;
1.9 schwarze 212: case (MAN_BODY):
213: assert(MAN_BLOCK == p->parent->type);
214: p->parent->body = p;
215: break;
216: default:
217: break;
218: }
219:
1.1 kristaps 220: man->last = p;
221:
222: switch (p->type) {
1.52 schwarze 223: case (MAN_TBL):
224: /* FALLTHROUGH */
1.1 kristaps 225: case (MAN_TEXT):
226: if ( ! man_valid_post(man))
227: return(0);
228: break;
229: default:
230: break;
231: }
232:
233: return(1);
234: }
235:
236:
237: static struct man_node *
1.69 schwarze 238: man_node_alloc(struct man *man, int line, int pos,
1.54 schwarze 239: enum man_type type, enum mant tok)
1.1 kristaps 240: {
241: struct man_node *p;
242:
1.16 schwarze 243: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 244: p->line = line;
245: p->pos = pos;
246: p->type = type;
247: p->tok = tok;
1.54 schwarze 248:
1.69 schwarze 249: if (MAN_NEWLINE & man->flags)
1.54 schwarze 250: p->flags |= MAN_LINE;
1.69 schwarze 251: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 252: return(p);
253: }
254:
255:
256: int
1.69 schwarze 257: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 258: {
259: struct man_node *p;
260:
1.69 schwarze 261: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
262: if ( ! man_node_append(man, p))
1.10 schwarze 263: return(0);
1.69 schwarze 264: man->next = MAN_NEXT_CHILD;
1.10 schwarze 265: return(1);
1.1 kristaps 266: }
267:
268:
269: int
1.69 schwarze 270: man_tail_alloc(struct man *man, int line, int pos, enum mant tok)
1.59 schwarze 271: {
272: struct man_node *p;
273:
1.69 schwarze 274: p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
275: if ( ! man_node_append(man, p))
1.59 schwarze 276: return(0);
1.69 schwarze 277: man->next = MAN_NEXT_CHILD;
1.59 schwarze 278: return(1);
279: }
280:
281:
282: int
1.69 schwarze 283: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 284: {
285: struct man_node *p;
286:
1.69 schwarze 287: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
288: if ( ! man_node_append(man, p))
1.9 schwarze 289: return(0);
1.69 schwarze 290: man->next = MAN_NEXT_CHILD;
1.9 schwarze 291: return(1);
292: }
293:
294:
295: int
1.69 schwarze 296: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 297: {
298: struct man_node *p;
299:
1.69 schwarze 300: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
301: if ( ! man_node_append(man, p))
1.9 schwarze 302: return(0);
1.69 schwarze 303: man->next = MAN_NEXT_CHILD;
1.9 schwarze 304: return(1);
305: }
306:
307:
308: int
1.69 schwarze 309: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 310: {
311: struct man_node *p;
312:
1.69 schwarze 313: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
314: if ( ! man_node_append(man, p))
1.9 schwarze 315: return(0);
1.69 schwarze 316: man->next = MAN_NEXT_CHILD;
1.9 schwarze 317: return(1);
318: }
319:
1.27 schwarze 320: int
1.69 schwarze 321: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 322: {
1.10 schwarze 323: struct man_node *n;
1.1 kristaps 324:
1.69 schwarze 325: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
326: n->string = roff_strdup(man->roff, word);
1.10 schwarze 327:
1.69 schwarze 328: if ( ! man_node_append(man, n))
1.1 kristaps 329: return(0);
1.27 schwarze 330:
1.69 schwarze 331: man->next = MAN_NEXT_SIBLING;
1.10 schwarze 332: return(1);
333: }
334:
335:
1.22 schwarze 336: /*
337: * Free all of the resources held by a node. This does NOT unlink a
338: * node from its context; for that, see man_node_unlink().
339: */
340: static void
1.1 kristaps 341: man_node_free(struct man_node *p)
342: {
343:
344: if (p->string)
345: free(p->string);
346: free(p);
347: }
348:
349:
350: void
1.69 schwarze 351: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 352: {
353:
1.22 schwarze 354: while (p->child)
1.69 schwarze 355: man_node_delete(man, p->child);
1.22 schwarze 356:
1.69 schwarze 357: man_node_unlink(man, p);
1.1 kristaps 358: man_node_free(p);
359: }
360:
1.57 schwarze 361: int
1.69 schwarze 362: man_addeqn(struct man *man, const struct eqn *ep)
1.57 schwarze 363: {
364: struct man_node *n;
365:
1.69 schwarze 366: assert( ! (MAN_HALT & man->flags));
1.57 schwarze 367:
1.69 schwarze 368: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.57 schwarze 369: n->eqn = ep;
370:
1.69 schwarze 371: if ( ! man_node_append(man, n))
1.57 schwarze 372: return(0);
373:
1.69 schwarze 374: man->next = MAN_NEXT_SIBLING;
375: return(man_descope(man, ep->ln, ep->pos));
1.57 schwarze 376: }
1.1 kristaps 377:
1.52 schwarze 378: int
1.69 schwarze 379: man_addspan(struct man *man, const struct tbl_span *sp)
1.52 schwarze 380: {
1.55 schwarze 381: struct man_node *n;
1.52 schwarze 382:
1.69 schwarze 383: assert( ! (MAN_HALT & man->flags));
1.55 schwarze 384:
1.69 schwarze 385: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.55 schwarze 386: n->span = sp;
387:
1.69 schwarze 388: if ( ! man_node_append(man, n))
1.52 schwarze 389: return(0);
1.55 schwarze 390:
1.69 schwarze 391: man->next = MAN_NEXT_SIBLING;
392: return(man_descope(man, sp->line, 0));
1.52 schwarze 393: }
394:
395: static int
1.69 schwarze 396: man_descope(struct man *man, int line, int offs)
1.52 schwarze 397: {
398: /*
399: * Co-ordinate what happens with having a next-line scope open:
400: * first close out the element scope (if applicable), then close
401: * out the block scope (also if applicable).
402: */
403:
1.69 schwarze 404: if (MAN_ELINE & man->flags) {
405: man->flags &= ~MAN_ELINE;
406: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 407: return(0);
408: }
409:
1.69 schwarze 410: if ( ! (MAN_BLINE & man->flags))
1.52 schwarze 411: return(1);
1.69 schwarze 412: man->flags &= ~MAN_BLINE;
1.52 schwarze 413:
1.69 schwarze 414: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 415: return(0);
1.69 schwarze 416: return(man_body_alloc(man, line, offs, man->last->tok));
1.52 schwarze 417: }
418:
1.1 kristaps 419: static int
1.69 schwarze 420: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 421: {
1.27 schwarze 422: int i;
1.26 schwarze 423:
1.10 schwarze 424: /* Literal free-form text whitespace is preserved. */
425:
1.69 schwarze 426: if (MAN_LITERAL & man->flags) {
427: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.10 schwarze 428: return(0);
1.69 schwarze 429: return(man_descope(man, line, offs));
1.10 schwarze 430: }
431:
1.31 schwarze 432: for (i = offs; ' ' == buf[i]; i++)
1.10 schwarze 433: /* Skip leading whitespace. */ ;
1.18 schwarze 434:
1.71 schwarze 435: /*
436: * Blank lines are ignored right after headings
437: * but add a single vertical space elsewhere.
438: */
439:
1.18 schwarze 440: if ('\0' == buf[i]) {
1.27 schwarze 441: /* Allocate a blank entry. */
1.71 schwarze 442: if (MAN_SH != man->last->tok &&
443: MAN_SS != man->last->tok) {
444: if ( ! man_elem_alloc(man, line, offs, MAN_sp))
445: return(0);
446: man->next = MAN_NEXT_SIBLING;
447: }
1.68 schwarze 448: return(1);
1.10 schwarze 449: }
1.1 kristaps 450:
1.27 schwarze 451: /*
452: * Warn if the last un-escaped character is whitespace. Then
453: * strip away the remaining spaces (tabs stay!).
454: */
1.18 schwarze 455:
1.27 schwarze 456: i = (int)strlen(buf);
457: assert(i);
1.18 schwarze 458:
1.27 schwarze 459: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
460: if (i > 1 && '\\' != buf[i - 2])
1.69 schwarze 461: man_pmsg(man, line, i - 1, MANDOCERR_EOLNSPACE);
1.18 schwarze 462:
1.27 schwarze 463: for (--i; i && ' ' == buf[i]; i--)
464: /* Spin back to non-space. */ ;
1.10 schwarze 465:
1.27 schwarze 466: /* Jump ahead of escaped whitespace. */
467: i += '\\' == buf[i] ? 2 : 1;
1.18 schwarze 468:
1.27 schwarze 469: buf[i] = '\0';
1.10 schwarze 470: }
1.9 schwarze 471:
1.69 schwarze 472: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.1 kristaps 473: return(0);
1.28 schwarze 474:
475: /*
476: * End-of-sentence check. If the last character is an unescaped
477: * EOS character, then flag the node as being the end of a
478: * sentence. The front-end will know how to interpret this.
479: */
480:
481: assert(i);
1.72 schwarze 482: if (mandoc_eos(buf, (size_t)i))
1.69 schwarze 483: man->last->flags |= MAN_EOS;
1.10 schwarze 484:
1.69 schwarze 485: return(man_descope(man, line, offs));
1.1 kristaps 486: }
487:
1.53 schwarze 488: static int
1.69 schwarze 489: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 490: {
1.59 schwarze 491: int i, ppos;
1.22 schwarze 492: enum mant tok;
1.10 schwarze 493: char mac[5];
494: struct man_node *n;
1.1 kristaps 495:
1.59 schwarze 496: if ('"' == buf[offs]) {
1.69 schwarze 497: man_pmsg(man, ln, offs, MANDOCERR_BADCOMMENT);
1.59 schwarze 498: return(1);
499: } else if ('\0' == buf[offs])
1.17 schwarze 500: return(1);
1.1 kristaps 501:
1.59 schwarze 502: ppos = offs;
1.1 kristaps 503:
1.23 schwarze 504: /*
1.59 schwarze 505: * Copy the first word into a nil-terminated buffer.
506: * Stop copying when a tab, space, or eoln is encountered.
1.23 schwarze 507: */
1.27 schwarze 508:
1.59 schwarze 509: i = 0;
510: while (i < 4 && '\0' != buf[offs] &&
511: ' ' != buf[offs] && '\t' != buf[offs])
512: mac[i++] = buf[offs++];
1.1 kristaps 513:
1.59 schwarze 514: mac[i] = '\0';
1.1 kristaps 515:
1.59 schwarze 516: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 517:
1.40 schwarze 518: if (MAN_MAX == tok) {
1.69 schwarze 519: mandoc_vmsg(MANDOCERR_MACRO, man->parse, ln,
1.59 schwarze 520: ppos, "%s", buf + ppos - 1);
1.1 kristaps 521: return(1);
522: }
523:
524: /* The macro is sane. Jump to the next word. */
525:
1.59 schwarze 526: while (buf[offs] && ' ' == buf[offs])
527: offs++;
1.18 schwarze 528:
1.27 schwarze 529: /*
530: * Trailing whitespace. Note that tabs are allowed to be passed
531: * into the parser as "text", so we only warn about spaces here.
532: */
1.18 schwarze 533:
1.59 schwarze 534: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.69 schwarze 535: man_pmsg(man, ln, offs - 1, MANDOCERR_EOLNSPACE);
1.1 kristaps 536:
1.21 schwarze 537: /*
1.46 schwarze 538: * Remove prior ELINE macro, as it's being clobbered by a new
1.21 schwarze 539: * macro. Note that NSCOPED macros do not close out ELINE
540: * macros---they don't print text---so we let those slip by.
541: */
542:
1.22 schwarze 543: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.69 schwarze 544: man->flags & MAN_ELINE) {
545: n = man->last;
1.46 schwarze 546: assert(MAN_TEXT != n->type);
1.21 schwarze 547:
1.49 schwarze 548: /* Remove repeated NSCOPED macros causing ELINE. */
549:
1.46 schwarze 550: if (MAN_NSCOPED & man_macros[n->tok].flags)
551: n = n->parent;
1.21 schwarze 552:
1.69 schwarze 553: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 554: n->pos, "%s breaks %s", man_macronames[tok],
555: man_macronames[n->tok]);
1.10 schwarze 556:
1.69 schwarze 557: man_node_delete(man, n);
558: man->flags &= ~MAN_ELINE;
1.63 schwarze 559: }
560:
561: /*
562: * Remove prior BLINE macro that is being clobbered.
563: */
1.69 schwarze 564: if ((man->flags & MAN_BLINE) &&
1.63 schwarze 565: (MAN_BSCOPE & man_macros[tok].flags)) {
1.69 schwarze 566: n = man->last;
1.64 schwarze 567:
568: /* Might be a text node like 8 in
569: * .TP 8
570: * .SH foo
571: */
572: if (MAN_TEXT == n->type)
573: n = n->parent;
1.63 schwarze 574:
575: /* Remove element that didn't end BLINE, if any. */
576: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
577: n = n->parent;
578:
579: assert(MAN_HEAD == n->type);
580: n = n->parent;
581: assert(MAN_BLOCK == n->type);
582: assert(MAN_SCOPED & man_macros[n->tok].flags);
583:
1.69 schwarze 584: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 585: n->pos, "%s breaks %s", man_macronames[tok],
586: man_macronames[n->tok]);
587:
1.69 schwarze 588: man_node_delete(man, n);
589: man->flags &= ~MAN_BLINE;
1.10 schwarze 590: }
591:
1.24 schwarze 592: /*
593: * Save the fact that we're in the next-line for a block. In
594: * this way, embedded roff instructions can "remember" state
595: * when they exit.
596: */
597:
1.69 schwarze 598: if (MAN_BLINE & man->flags)
599: man->flags |= MAN_BPLINE;
1.24 schwarze 600:
601: /* Call to handler... */
1.1 kristaps 602:
1.22 schwarze 603: assert(man_macros[tok].fp);
1.69 schwarze 604: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.1 kristaps 605: goto err;
1.73 schwarze 606:
607: /* In quick mode (for mandocdb), abort after the NAME section. */
608:
609: if (man->quick && MAN_SH == tok &&
610: strcmp(man->last->prev->child->string, "NAME"))
611: return(2);
1.1 kristaps 612:
1.21 schwarze 613: /*
614: * We weren't in a block-line scope when entering the
615: * above-parsed macro, so return.
616: */
617:
1.69 schwarze 618: if ( ! (MAN_BPLINE & man->flags)) {
619: man->flags &= ~MAN_ILINE;
1.9 schwarze 620: return(1);
1.21 schwarze 621: }
1.69 schwarze 622: man->flags &= ~MAN_BPLINE;
1.21 schwarze 623:
624: /*
625: * If we're in a block scope, then allow this macro to slip by
626: * without closing scope around it.
627: */
628:
1.69 schwarze 629: if (MAN_ILINE & man->flags) {
630: man->flags &= ~MAN_ILINE;
1.21 schwarze 631: return(1);
632: }
1.9 schwarze 633:
634: /*
635: * If we've opened a new next-line element scope, then return
636: * now, as the next line will close out the block scope.
637: */
638:
1.69 schwarze 639: if (MAN_ELINE & man->flags)
1.9 schwarze 640: return(1);
641:
642: /* Close out the block scope opened in the prior line. */
1.1 kristaps 643:
1.69 schwarze 644: assert(MAN_BLINE & man->flags);
645: man->flags &= ~MAN_BLINE;
1.1 kristaps 646:
1.69 schwarze 647: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.9 schwarze 648: return(0);
1.69 schwarze 649: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 650:
651: err: /* Error out. */
652:
1.69 schwarze 653: man->flags |= MAN_HALT;
1.1 kristaps 654: return(0);
655: }
1.21 schwarze 656:
1.22 schwarze 657: /*
1.69 schwarze 658: * Unlink a node from its context. If "man" is provided, the last parse
1.22 schwarze 659: * point will also be adjusted accordingly.
660: */
661: static void
1.69 schwarze 662: man_node_unlink(struct man *man, struct man_node *n)
1.21 schwarze 663: {
664:
1.22 schwarze 665: /* Adjust siblings. */
666:
667: if (n->prev)
1.21 schwarze 668: n->prev->next = n->next;
1.22 schwarze 669: if (n->next)
670: n->next->prev = n->prev;
671:
672: /* Adjust parent. */
673:
674: if (n->parent) {
675: n->parent->nchild--;
676: if (n->parent->child == n)
677: n->parent->child = n->prev ? n->prev : n->next;
678: }
679:
680: /* Adjust parse point, if applicable. */
681:
1.69 schwarze 682: if (man && man->last == n) {
1.22 schwarze 683: /*XXX: this can occur when bailing from validation. */
684: /*assert(NULL == n->next);*/
685: if (n->prev) {
1.69 schwarze 686: man->last = n->prev;
687: man->next = MAN_NEXT_SIBLING;
1.22 schwarze 688: } else {
1.69 schwarze 689: man->last = n->parent;
690: man->next = MAN_NEXT_CHILD;
1.21 schwarze 691: }
692: }
693:
1.69 schwarze 694: if (man && man->first == n)
695: man->first = NULL;
1.62 schwarze 696: }
697:
698: const struct mparse *
1.69 schwarze 699: man_mparse(const struct man *man)
1.62 schwarze 700: {
701:
1.69 schwarze 702: assert(man && man->parse);
703: return(man->parse);
1.4 schwarze 704: }
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