Annotation of src/usr.bin/mandoc/man.c, Revision 1.70
1.70 ! schwarze 1: /* $Id: man.c,v 1.69 2012/11/17 00:25:20 schwarze Exp $ */
1.1 kristaps 2: /*
1.52 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 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: *
1.2 schwarze 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: */
1.14 schwarze 17: #include <sys/types.h>
18:
1.1 kristaps 19: #include <assert.h>
20: #include <stdarg.h>
21: #include <stdlib.h>
22: #include <stdio.h>
23: #include <string.h>
24:
1.59 schwarze 25: #include "man.h"
1.33 schwarze 26: #include "mandoc.h"
1.1 kristaps 27: #include "libman.h"
1.16 schwarze 28: #include "libmandoc.h"
1.1 kristaps 29:
30: const char *const __man_macronames[MAN_MAX] = {
1.3 schwarze 31: "br", "TH", "SH", "SS",
1.1 kristaps 32: "TP", "LP", "PP", "P",
33: "IP", "HP", "SM", "SB",
34: "BI", "IB", "BR", "RB",
35: "R", "B", "I", "IR",
1.50 schwarze 36: "RI", "na", "sp", "nf",
37: "fi", "RE", "RS", "DT",
38: "UC", "PD", "AT", "in",
1.70 ! schwarze 39: "ft", "OP", "EX", "EE",
! 40: "UR", "UE"
1.1 kristaps 41: };
42:
43: const char * const *man_macronames = __man_macronames;
44:
1.54 schwarze 45: static struct man_node *man_node_alloc(struct man *, int, int,
1.22 schwarze 46: enum man_type, enum mant);
1.1 kristaps 47: static int man_node_append(struct man *,
48: struct man_node *);
1.22 schwarze 49: static void man_node_free(struct man_node *);
50: static void man_node_unlink(struct man *,
51: struct man_node *);
1.31 schwarze 52: static int man_ptext(struct man *, int, char *, int);
53: static int man_pmacro(struct man *, int, char *, int);
1.1 kristaps 54: static void man_free1(struct man *);
1.16 schwarze 55: static void man_alloc1(struct man *);
1.52 schwarze 56: static int man_descope(struct man *, int, int);
1.1 kristaps 57:
58:
59: const struct man_node *
1.69 schwarze 60: man_node(const struct man *man)
1.1 kristaps 61: {
62:
1.69 schwarze 63: assert( ! (MAN_HALT & man->flags));
64: return(man->first);
1.1 kristaps 65: }
66:
67:
68: const struct man_meta *
1.69 schwarze 69: man_meta(const struct man *man)
1.1 kristaps 70: {
71:
1.69 schwarze 72: assert( ! (MAN_HALT & man->flags));
73: return(&man->meta);
1.1 kristaps 74: }
75:
76:
1.16 schwarze 77: void
1.1 kristaps 78: man_reset(struct man *man)
79: {
80:
81: man_free1(man);
1.16 schwarze 82: man_alloc1(man);
1.1 kristaps 83: }
84:
85:
86: void
87: man_free(struct man *man)
88: {
89:
90: man_free1(man);
91: free(man);
92: }
93:
94:
95: struct man *
1.60 schwarze 96: man_alloc(struct roff *roff, struct mparse *parse)
1.1 kristaps 97: {
98: struct man *p;
99:
1.16 schwarze 100: p = mandoc_calloc(1, sizeof(struct man));
1.1 kristaps 101:
1.13 schwarze 102: man_hash_init();
1.59 schwarze 103: p->parse = parse;
1.60 schwarze 104: p->roff = roff;
1.16 schwarze 105:
106: man_alloc1(p);
1.1 kristaps 107: return(p);
108: }
109:
110:
111: int
1.69 schwarze 112: man_endparse(struct man *man)
1.1 kristaps 113: {
114:
1.69 schwarze 115: assert( ! (MAN_HALT & man->flags));
116: if (man_macroend(man))
1.1 kristaps 117: return(1);
1.69 schwarze 118: man->flags |= MAN_HALT;
1.1 kristaps 119: return(0);
120: }
121:
122:
123: int
1.69 schwarze 124: man_parseln(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 125: {
1.25 schwarze 126:
1.69 schwarze 127: man->flags |= MAN_NEWLINE;
1.54 schwarze 128:
1.69 schwarze 129: assert( ! (MAN_HALT & man->flags));
1.59 schwarze 130:
1.69 schwarze 131: return (roff_getcontrol(man->roff, buf, &offs) ?
132: man_pmacro(man, ln, buf, offs) :
133: man_ptext(man, ln, buf, offs));
1.1 kristaps 134: }
135:
136:
137: static void
138: man_free1(struct man *man)
139: {
140:
141: if (man->first)
1.22 schwarze 142: man_node_delete(man, man->first);
1.1 kristaps 143: if (man->meta.title)
144: free(man->meta.title);
145: if (man->meta.source)
146: free(man->meta.source);
1.56 schwarze 147: if (man->meta.date)
148: free(man->meta.date);
1.1 kristaps 149: if (man->meta.vol)
150: free(man->meta.vol);
1.29 schwarze 151: if (man->meta.msec)
152: free(man->meta.msec);
1.1 kristaps 153: }
154:
155:
1.16 schwarze 156: static void
1.69 schwarze 157: man_alloc1(struct man *man)
1.1 kristaps 158: {
159:
1.69 schwarze 160: memset(&man->meta, 0, sizeof(struct man_meta));
161: man->flags = 0;
162: man->last = mandoc_calloc(1, sizeof(struct man_node));
163: man->first = man->last;
164: man->last->type = MAN_ROOT;
165: man->last->tok = MAN_MAX;
166: man->next = MAN_NEXT_CHILD;
1.1 kristaps 167: }
168:
169:
170: static int
171: man_node_append(struct man *man, struct man_node *p)
172: {
173:
174: assert(man->last);
175: assert(man->first);
176: assert(MAN_ROOT != p->type);
177:
178: switch (man->next) {
179: case (MAN_NEXT_SIBLING):
180: man->last->next = p;
181: p->prev = man->last;
182: p->parent = man->last->parent;
183: break;
184: case (MAN_NEXT_CHILD):
185: man->last->child = p;
186: p->parent = man->last;
187: break;
188: default:
189: abort();
190: /* NOTREACHED */
191: }
1.5 schwarze 192:
1.22 schwarze 193: assert(p->parent);
1.5 schwarze 194: p->parent->nchild++;
1.1 kristaps 195:
1.9 schwarze 196: if ( ! man_valid_pre(man, p))
197: return(0);
198:
199: switch (p->type) {
200: case (MAN_HEAD):
201: assert(MAN_BLOCK == p->parent->type);
202: p->parent->head = p;
203: break;
1.59 schwarze 204: case (MAN_TAIL):
205: assert(MAN_BLOCK == p->parent->type);
206: p->parent->tail = p;
207: break;
1.9 schwarze 208: case (MAN_BODY):
209: assert(MAN_BLOCK == p->parent->type);
210: p->parent->body = p;
211: break;
212: default:
213: break;
214: }
215:
1.1 kristaps 216: man->last = p;
217:
218: switch (p->type) {
1.52 schwarze 219: case (MAN_TBL):
220: /* FALLTHROUGH */
1.1 kristaps 221: case (MAN_TEXT):
222: if ( ! man_valid_post(man))
223: return(0);
224: break;
225: default:
226: break;
227: }
228:
229: return(1);
230: }
231:
232:
233: static struct man_node *
1.69 schwarze 234: man_node_alloc(struct man *man, int line, int pos,
1.54 schwarze 235: enum man_type type, enum mant tok)
1.1 kristaps 236: {
237: struct man_node *p;
238:
1.16 schwarze 239: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 240: p->line = line;
241: p->pos = pos;
242: p->type = type;
243: p->tok = tok;
1.54 schwarze 244:
1.69 schwarze 245: if (MAN_NEWLINE & man->flags)
1.54 schwarze 246: p->flags |= MAN_LINE;
1.69 schwarze 247: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 248: return(p);
249: }
250:
251:
252: int
1.69 schwarze 253: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 254: {
255: struct man_node *p;
256:
1.69 schwarze 257: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
258: if ( ! man_node_append(man, p))
1.10 schwarze 259: return(0);
1.69 schwarze 260: man->next = MAN_NEXT_CHILD;
1.10 schwarze 261: return(1);
1.1 kristaps 262: }
263:
264:
265: int
1.69 schwarze 266: man_tail_alloc(struct man *man, int line, int pos, enum mant tok)
1.59 schwarze 267: {
268: struct man_node *p;
269:
1.69 schwarze 270: p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
271: if ( ! man_node_append(man, p))
1.59 schwarze 272: return(0);
1.69 schwarze 273: man->next = MAN_NEXT_CHILD;
1.59 schwarze 274: return(1);
275: }
276:
277:
278: int
1.69 schwarze 279: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 280: {
281: struct man_node *p;
282:
1.69 schwarze 283: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
284: if ( ! man_node_append(man, p))
1.9 schwarze 285: return(0);
1.69 schwarze 286: man->next = MAN_NEXT_CHILD;
1.9 schwarze 287: return(1);
288: }
289:
290:
291: int
1.69 schwarze 292: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 293: {
294: struct man_node *p;
295:
1.69 schwarze 296: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
297: if ( ! man_node_append(man, p))
1.9 schwarze 298: return(0);
1.69 schwarze 299: man->next = MAN_NEXT_CHILD;
1.9 schwarze 300: return(1);
301: }
302:
303:
304: int
1.69 schwarze 305: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 306: {
307: struct man_node *p;
308:
1.69 schwarze 309: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
310: if ( ! man_node_append(man, p))
1.9 schwarze 311: return(0);
1.69 schwarze 312: man->next = MAN_NEXT_CHILD;
1.9 schwarze 313: return(1);
314: }
315:
1.27 schwarze 316: int
1.69 schwarze 317: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 318: {
1.10 schwarze 319: struct man_node *n;
1.1 kristaps 320:
1.69 schwarze 321: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
322: n->string = roff_strdup(man->roff, word);
1.10 schwarze 323:
1.69 schwarze 324: if ( ! man_node_append(man, n))
1.1 kristaps 325: return(0);
1.27 schwarze 326:
1.69 schwarze 327: man->next = MAN_NEXT_SIBLING;
1.10 schwarze 328: return(1);
329: }
330:
331:
1.22 schwarze 332: /*
333: * Free all of the resources held by a node. This does NOT unlink a
334: * node from its context; for that, see man_node_unlink().
335: */
336: static void
1.1 kristaps 337: man_node_free(struct man_node *p)
338: {
339:
340: if (p->string)
341: free(p->string);
342: free(p);
343: }
344:
345:
346: void
1.69 schwarze 347: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 348: {
349:
1.22 schwarze 350: while (p->child)
1.69 schwarze 351: man_node_delete(man, p->child);
1.22 schwarze 352:
1.69 schwarze 353: man_node_unlink(man, p);
1.1 kristaps 354: man_node_free(p);
355: }
356:
1.57 schwarze 357: int
1.69 schwarze 358: man_addeqn(struct man *man, const struct eqn *ep)
1.57 schwarze 359: {
360: struct man_node *n;
361:
1.69 schwarze 362: assert( ! (MAN_HALT & man->flags));
1.57 schwarze 363:
1.69 schwarze 364: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.57 schwarze 365: n->eqn = ep;
366:
1.69 schwarze 367: if ( ! man_node_append(man, n))
1.57 schwarze 368: return(0);
369:
1.69 schwarze 370: man->next = MAN_NEXT_SIBLING;
371: return(man_descope(man, ep->ln, ep->pos));
1.57 schwarze 372: }
1.1 kristaps 373:
1.52 schwarze 374: int
1.69 schwarze 375: man_addspan(struct man *man, const struct tbl_span *sp)
1.52 schwarze 376: {
1.55 schwarze 377: struct man_node *n;
1.52 schwarze 378:
1.69 schwarze 379: assert( ! (MAN_HALT & man->flags));
1.55 schwarze 380:
1.69 schwarze 381: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.55 schwarze 382: n->span = sp;
383:
1.69 schwarze 384: if ( ! man_node_append(man, n))
1.52 schwarze 385: return(0);
1.55 schwarze 386:
1.69 schwarze 387: man->next = MAN_NEXT_SIBLING;
388: return(man_descope(man, sp->line, 0));
1.52 schwarze 389: }
390:
391: static int
1.69 schwarze 392: man_descope(struct man *man, int line, int offs)
1.52 schwarze 393: {
394: /*
395: * Co-ordinate what happens with having a next-line scope open:
396: * first close out the element scope (if applicable), then close
397: * out the block scope (also if applicable).
398: */
399:
1.69 schwarze 400: if (MAN_ELINE & man->flags) {
401: man->flags &= ~MAN_ELINE;
402: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 403: return(0);
404: }
405:
1.69 schwarze 406: if ( ! (MAN_BLINE & man->flags))
1.52 schwarze 407: return(1);
1.69 schwarze 408: man->flags &= ~MAN_BLINE;
1.52 schwarze 409:
1.69 schwarze 410: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 411: return(0);
1.69 schwarze 412: return(man_body_alloc(man, line, offs, man->last->tok));
1.52 schwarze 413: }
414:
1.1 kristaps 415: static int
1.69 schwarze 416: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 417: {
1.27 schwarze 418: int i;
1.26 schwarze 419:
1.10 schwarze 420: /* Literal free-form text whitespace is preserved. */
421:
1.69 schwarze 422: if (MAN_LITERAL & man->flags) {
423: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.10 schwarze 424: return(0);
1.69 schwarze 425: return(man_descope(man, line, offs));
1.10 schwarze 426: }
427:
1.27 schwarze 428: /* Pump blank lines directly into the backend. */
1.10 schwarze 429:
1.31 schwarze 430: for (i = offs; ' ' == buf[i]; i++)
1.10 schwarze 431: /* Skip leading whitespace. */ ;
1.18 schwarze 432:
433: if ('\0' == buf[i]) {
1.27 schwarze 434: /* Allocate a blank entry. */
1.69 schwarze 435: if ( ! man_elem_alloc(man, line, offs, MAN_sp))
1.10 schwarze 436: return(0);
1.69 schwarze 437: man->next = MAN_NEXT_SIBLING;
1.68 schwarze 438: return(1);
1.10 schwarze 439: }
1.1 kristaps 440:
1.27 schwarze 441: /*
442: * Warn if the last un-escaped character is whitespace. Then
443: * strip away the remaining spaces (tabs stay!).
444: */
1.18 schwarze 445:
1.27 schwarze 446: i = (int)strlen(buf);
447: assert(i);
1.18 schwarze 448:
1.27 schwarze 449: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
450: if (i > 1 && '\\' != buf[i - 2])
1.69 schwarze 451: man_pmsg(man, line, i - 1, MANDOCERR_EOLNSPACE);
1.18 schwarze 452:
1.27 schwarze 453: for (--i; i && ' ' == buf[i]; i--)
454: /* Spin back to non-space. */ ;
1.10 schwarze 455:
1.27 schwarze 456: /* Jump ahead of escaped whitespace. */
457: i += '\\' == buf[i] ? 2 : 1;
1.18 schwarze 458:
1.27 schwarze 459: buf[i] = '\0';
1.10 schwarze 460: }
1.9 schwarze 461:
1.69 schwarze 462: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.1 kristaps 463: return(0);
1.28 schwarze 464:
465: /*
466: * End-of-sentence check. If the last character is an unescaped
467: * EOS character, then flag the node as being the end of a
468: * sentence. The front-end will know how to interpret this.
469: */
470:
471: assert(i);
1.37 schwarze 472: if (mandoc_eos(buf, (size_t)i, 0))
1.69 schwarze 473: man->last->flags |= MAN_EOS;
1.10 schwarze 474:
1.69 schwarze 475: return(man_descope(man, line, offs));
1.1 kristaps 476: }
477:
1.53 schwarze 478: static int
1.69 schwarze 479: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 480: {
1.59 schwarze 481: int i, ppos;
1.22 schwarze 482: enum mant tok;
1.10 schwarze 483: char mac[5];
484: struct man_node *n;
1.1 kristaps 485:
1.59 schwarze 486: if ('"' == buf[offs]) {
1.69 schwarze 487: man_pmsg(man, ln, offs, MANDOCERR_BADCOMMENT);
1.59 schwarze 488: return(1);
489: } else if ('\0' == buf[offs])
1.17 schwarze 490: return(1);
1.1 kristaps 491:
1.59 schwarze 492: ppos = offs;
1.1 kristaps 493:
1.23 schwarze 494: /*
1.59 schwarze 495: * Copy the first word into a nil-terminated buffer.
496: * Stop copying when a tab, space, or eoln is encountered.
1.23 schwarze 497: */
1.27 schwarze 498:
1.59 schwarze 499: i = 0;
500: while (i < 4 && '\0' != buf[offs] &&
501: ' ' != buf[offs] && '\t' != buf[offs])
502: mac[i++] = buf[offs++];
1.1 kristaps 503:
1.59 schwarze 504: mac[i] = '\0';
1.1 kristaps 505:
1.59 schwarze 506: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 507:
1.40 schwarze 508: if (MAN_MAX == tok) {
1.69 schwarze 509: mandoc_vmsg(MANDOCERR_MACRO, man->parse, ln,
1.59 schwarze 510: ppos, "%s", buf + ppos - 1);
1.1 kristaps 511: return(1);
512: }
513:
514: /* The macro is sane. Jump to the next word. */
515:
1.59 schwarze 516: while (buf[offs] && ' ' == buf[offs])
517: offs++;
1.18 schwarze 518:
1.27 schwarze 519: /*
520: * Trailing whitespace. Note that tabs are allowed to be passed
521: * into the parser as "text", so we only warn about spaces here.
522: */
1.18 schwarze 523:
1.59 schwarze 524: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.69 schwarze 525: man_pmsg(man, ln, offs - 1, MANDOCERR_EOLNSPACE);
1.1 kristaps 526:
1.21 schwarze 527: /*
1.46 schwarze 528: * Remove prior ELINE macro, as it's being clobbered by a new
1.21 schwarze 529: * macro. Note that NSCOPED macros do not close out ELINE
530: * macros---they don't print text---so we let those slip by.
531: */
532:
1.22 schwarze 533: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.69 schwarze 534: man->flags & MAN_ELINE) {
535: n = man->last;
1.46 schwarze 536: assert(MAN_TEXT != n->type);
1.21 schwarze 537:
1.49 schwarze 538: /* Remove repeated NSCOPED macros causing ELINE. */
539:
1.46 schwarze 540: if (MAN_NSCOPED & man_macros[n->tok].flags)
541: n = n->parent;
1.21 schwarze 542:
1.69 schwarze 543: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 544: n->pos, "%s breaks %s", man_macronames[tok],
545: man_macronames[n->tok]);
1.10 schwarze 546:
1.69 schwarze 547: man_node_delete(man, n);
548: man->flags &= ~MAN_ELINE;
1.63 schwarze 549: }
550:
551: /*
552: * Remove prior BLINE macro that is being clobbered.
553: */
1.69 schwarze 554: if ((man->flags & MAN_BLINE) &&
1.63 schwarze 555: (MAN_BSCOPE & man_macros[tok].flags)) {
1.69 schwarze 556: n = man->last;
1.64 schwarze 557:
558: /* Might be a text node like 8 in
559: * .TP 8
560: * .SH foo
561: */
562: if (MAN_TEXT == n->type)
563: n = n->parent;
1.63 schwarze 564:
565: /* Remove element that didn't end BLINE, if any. */
566: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
567: n = n->parent;
568:
569: assert(MAN_HEAD == n->type);
570: n = n->parent;
571: assert(MAN_BLOCK == n->type);
572: assert(MAN_SCOPED & man_macros[n->tok].flags);
573:
1.69 schwarze 574: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 575: n->pos, "%s breaks %s", man_macronames[tok],
576: man_macronames[n->tok]);
577:
1.69 schwarze 578: man_node_delete(man, n);
579: man->flags &= ~MAN_BLINE;
1.10 schwarze 580: }
581:
1.24 schwarze 582: /*
583: * Save the fact that we're in the next-line for a block. In
584: * this way, embedded roff instructions can "remember" state
585: * when they exit.
586: */
587:
1.69 schwarze 588: if (MAN_BLINE & man->flags)
589: man->flags |= MAN_BPLINE;
1.24 schwarze 590:
591: /* Call to handler... */
1.1 kristaps 592:
1.22 schwarze 593: assert(man_macros[tok].fp);
1.69 schwarze 594: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.1 kristaps 595: goto err;
596:
1.21 schwarze 597: /*
598: * We weren't in a block-line scope when entering the
599: * above-parsed macro, so return.
600: */
601:
1.69 schwarze 602: if ( ! (MAN_BPLINE & man->flags)) {
603: man->flags &= ~MAN_ILINE;
1.9 schwarze 604: return(1);
1.21 schwarze 605: }
1.69 schwarze 606: man->flags &= ~MAN_BPLINE;
1.21 schwarze 607:
608: /*
609: * If we're in a block scope, then allow this macro to slip by
610: * without closing scope around it.
611: */
612:
1.69 schwarze 613: if (MAN_ILINE & man->flags) {
614: man->flags &= ~MAN_ILINE;
1.21 schwarze 615: return(1);
616: }
1.9 schwarze 617:
618: /*
619: * If we've opened a new next-line element scope, then return
620: * now, as the next line will close out the block scope.
621: */
622:
1.69 schwarze 623: if (MAN_ELINE & man->flags)
1.9 schwarze 624: return(1);
625:
626: /* Close out the block scope opened in the prior line. */
1.1 kristaps 627:
1.69 schwarze 628: assert(MAN_BLINE & man->flags);
629: man->flags &= ~MAN_BLINE;
1.1 kristaps 630:
1.69 schwarze 631: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.9 schwarze 632: return(0);
1.69 schwarze 633: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 634:
635: err: /* Error out. */
636:
1.69 schwarze 637: man->flags |= MAN_HALT;
1.1 kristaps 638: return(0);
639: }
1.21 schwarze 640:
1.22 schwarze 641: /*
1.69 schwarze 642: * Unlink a node from its context. If "man" is provided, the last parse
1.22 schwarze 643: * point will also be adjusted accordingly.
644: */
645: static void
1.69 schwarze 646: man_node_unlink(struct man *man, struct man_node *n)
1.21 schwarze 647: {
648:
1.22 schwarze 649: /* Adjust siblings. */
650:
651: if (n->prev)
1.21 schwarze 652: n->prev->next = n->next;
1.22 schwarze 653: if (n->next)
654: n->next->prev = n->prev;
655:
656: /* Adjust parent. */
657:
658: if (n->parent) {
659: n->parent->nchild--;
660: if (n->parent->child == n)
661: n->parent->child = n->prev ? n->prev : n->next;
662: }
663:
664: /* Adjust parse point, if applicable. */
665:
1.69 schwarze 666: if (man && man->last == n) {
1.22 schwarze 667: /*XXX: this can occur when bailing from validation. */
668: /*assert(NULL == n->next);*/
669: if (n->prev) {
1.69 schwarze 670: man->last = n->prev;
671: man->next = MAN_NEXT_SIBLING;
1.22 schwarze 672: } else {
1.69 schwarze 673: man->last = n->parent;
674: man->next = MAN_NEXT_CHILD;
1.21 schwarze 675: }
676: }
677:
1.69 schwarze 678: if (man && man->first == n)
679: man->first = NULL;
1.62 schwarze 680: }
681:
682: const struct mparse *
1.69 schwarze 683: man_mparse(const struct man *man)
1.62 schwarze 684: {
685:
1.69 schwarze 686: assert(man && man->parse);
687: return(man->parse);
1.4 schwarze 688: }
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