Annotation of src/usr.bin/mandoc/man.c, Revision 1.69
1.69 ! schwarze 1: /* $Id: man.c,v 1.68 2012/07/14 10:43:48 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",
1.66 schwarze 39: "ft", "OP", "EX", "EE"
1.1 kristaps 40: };
41:
42: const char * const *man_macronames = __man_macronames;
43:
1.54 schwarze 44: static struct man_node *man_node_alloc(struct man *, int, int,
1.22 schwarze 45: enum man_type, enum mant);
1.1 kristaps 46: static int man_node_append(struct man *,
47: struct man_node *);
1.22 schwarze 48: static void man_node_free(struct man_node *);
49: static void man_node_unlink(struct man *,
50: struct man_node *);
1.31 schwarze 51: static int man_ptext(struct man *, int, char *, int);
52: static int man_pmacro(struct man *, int, char *, int);
1.1 kristaps 53: static void man_free1(struct man *);
1.16 schwarze 54: static void man_alloc1(struct man *);
1.52 schwarze 55: static int man_descope(struct man *, int, int);
1.1 kristaps 56:
57:
58: const struct man_node *
1.69 ! schwarze 59: man_node(const struct man *man)
1.1 kristaps 60: {
61:
1.69 ! schwarze 62: assert( ! (MAN_HALT & man->flags));
! 63: return(man->first);
1.1 kristaps 64: }
65:
66:
67: const struct man_meta *
1.69 ! schwarze 68: man_meta(const struct man *man)
1.1 kristaps 69: {
70:
1.69 ! schwarze 71: assert( ! (MAN_HALT & man->flags));
! 72: return(&man->meta);
1.1 kristaps 73: }
74:
75:
1.16 schwarze 76: void
1.1 kristaps 77: man_reset(struct man *man)
78: {
79:
80: man_free1(man);
1.16 schwarze 81: man_alloc1(man);
1.1 kristaps 82: }
83:
84:
85: void
86: man_free(struct man *man)
87: {
88:
89: man_free1(man);
90: free(man);
91: }
92:
93:
94: struct man *
1.60 schwarze 95: man_alloc(struct roff *roff, struct mparse *parse)
1.1 kristaps 96: {
97: struct man *p;
98:
1.16 schwarze 99: p = mandoc_calloc(1, sizeof(struct man));
1.1 kristaps 100:
1.13 schwarze 101: man_hash_init();
1.59 schwarze 102: p->parse = parse;
1.60 schwarze 103: p->roff = roff;
1.16 schwarze 104:
105: man_alloc1(p);
1.1 kristaps 106: return(p);
107: }
108:
109:
110: int
1.69 ! schwarze 111: man_endparse(struct man *man)
1.1 kristaps 112: {
113:
1.69 ! schwarze 114: assert( ! (MAN_HALT & man->flags));
! 115: if (man_macroend(man))
1.1 kristaps 116: return(1);
1.69 ! schwarze 117: man->flags |= MAN_HALT;
1.1 kristaps 118: return(0);
119: }
120:
121:
122: int
1.69 ! schwarze 123: man_parseln(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 124: {
1.25 schwarze 125:
1.69 ! schwarze 126: man->flags |= MAN_NEWLINE;
1.54 schwarze 127:
1.69 ! schwarze 128: assert( ! (MAN_HALT & man->flags));
1.59 schwarze 129:
1.69 ! schwarze 130: return (roff_getcontrol(man->roff, buf, &offs) ?
! 131: man_pmacro(man, ln, buf, offs) :
! 132: man_ptext(man, ln, buf, offs));
1.1 kristaps 133: }
134:
135:
136: static void
137: man_free1(struct man *man)
138: {
139:
140: if (man->first)
1.22 schwarze 141: man_node_delete(man, man->first);
1.1 kristaps 142: if (man->meta.title)
143: free(man->meta.title);
144: if (man->meta.source)
145: free(man->meta.source);
1.56 schwarze 146: if (man->meta.date)
147: free(man->meta.date);
1.1 kristaps 148: if (man->meta.vol)
149: free(man->meta.vol);
1.29 schwarze 150: if (man->meta.msec)
151: free(man->meta.msec);
1.1 kristaps 152: }
153:
154:
1.16 schwarze 155: static void
1.69 ! schwarze 156: man_alloc1(struct man *man)
1.1 kristaps 157: {
158:
1.69 ! schwarze 159: memset(&man->meta, 0, sizeof(struct man_meta));
! 160: man->flags = 0;
! 161: man->last = mandoc_calloc(1, sizeof(struct man_node));
! 162: man->first = man->last;
! 163: man->last->type = MAN_ROOT;
! 164: man->last->tok = MAN_MAX;
! 165: man->next = MAN_NEXT_CHILD;
1.1 kristaps 166: }
167:
168:
169: static int
170: man_node_append(struct man *man, struct man_node *p)
171: {
172:
173: assert(man->last);
174: assert(man->first);
175: assert(MAN_ROOT != p->type);
176:
177: switch (man->next) {
178: case (MAN_NEXT_SIBLING):
179: man->last->next = p;
180: p->prev = man->last;
181: p->parent = man->last->parent;
182: break;
183: case (MAN_NEXT_CHILD):
184: man->last->child = p;
185: p->parent = man->last;
186: break;
187: default:
188: abort();
189: /* NOTREACHED */
190: }
1.5 schwarze 191:
1.22 schwarze 192: assert(p->parent);
1.5 schwarze 193: p->parent->nchild++;
1.1 kristaps 194:
1.9 schwarze 195: if ( ! man_valid_pre(man, p))
196: return(0);
197:
198: switch (p->type) {
199: case (MAN_HEAD):
200: assert(MAN_BLOCK == p->parent->type);
201: p->parent->head = p;
202: break;
1.59 schwarze 203: case (MAN_TAIL):
204: assert(MAN_BLOCK == p->parent->type);
205: p->parent->tail = p;
206: break;
1.9 schwarze 207: case (MAN_BODY):
208: assert(MAN_BLOCK == p->parent->type);
209: p->parent->body = p;
210: break;
211: default:
212: break;
213: }
214:
1.1 kristaps 215: man->last = p;
216:
217: switch (p->type) {
1.52 schwarze 218: case (MAN_TBL):
219: /* FALLTHROUGH */
1.1 kristaps 220: case (MAN_TEXT):
221: if ( ! man_valid_post(man))
222: return(0);
223: break;
224: default:
225: break;
226: }
227:
228: return(1);
229: }
230:
231:
232: static struct man_node *
1.69 ! schwarze 233: man_node_alloc(struct man *man, int line, int pos,
1.54 schwarze 234: enum man_type type, enum mant tok)
1.1 kristaps 235: {
236: struct man_node *p;
237:
1.16 schwarze 238: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 239: p->line = line;
240: p->pos = pos;
241: p->type = type;
242: p->tok = tok;
1.54 schwarze 243:
1.69 ! schwarze 244: if (MAN_NEWLINE & man->flags)
1.54 schwarze 245: p->flags |= MAN_LINE;
1.69 ! schwarze 246: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 247: return(p);
248: }
249:
250:
251: int
1.69 ! schwarze 252: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 253: {
254: struct man_node *p;
255:
1.69 ! schwarze 256: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
! 257: if ( ! man_node_append(man, p))
1.10 schwarze 258: return(0);
1.69 ! schwarze 259: man->next = MAN_NEXT_CHILD;
1.10 schwarze 260: return(1);
1.1 kristaps 261: }
262:
263:
264: int
1.69 ! schwarze 265: man_tail_alloc(struct man *man, int line, int pos, enum mant tok)
1.59 schwarze 266: {
267: struct man_node *p;
268:
1.69 ! schwarze 269: p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
! 270: if ( ! man_node_append(man, p))
1.59 schwarze 271: return(0);
1.69 ! schwarze 272: man->next = MAN_NEXT_CHILD;
1.59 schwarze 273: return(1);
274: }
275:
276:
277: int
1.69 ! schwarze 278: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 279: {
280: struct man_node *p;
281:
1.69 ! schwarze 282: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
! 283: if ( ! man_node_append(man, p))
1.9 schwarze 284: return(0);
1.69 ! schwarze 285: man->next = MAN_NEXT_CHILD;
1.9 schwarze 286: return(1);
287: }
288:
289:
290: int
1.69 ! schwarze 291: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 292: {
293: struct man_node *p;
294:
1.69 ! schwarze 295: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
! 296: if ( ! man_node_append(man, p))
1.9 schwarze 297: return(0);
1.69 ! schwarze 298: man->next = MAN_NEXT_CHILD;
1.9 schwarze 299: return(1);
300: }
301:
302:
303: int
1.69 ! schwarze 304: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 305: {
306: struct man_node *p;
307:
1.69 ! schwarze 308: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
! 309: if ( ! man_node_append(man, p))
1.9 schwarze 310: return(0);
1.69 ! schwarze 311: man->next = MAN_NEXT_CHILD;
1.9 schwarze 312: return(1);
313: }
314:
1.27 schwarze 315: int
1.69 ! schwarze 316: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 317: {
1.10 schwarze 318: struct man_node *n;
1.1 kristaps 319:
1.69 ! schwarze 320: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
! 321: n->string = roff_strdup(man->roff, word);
1.10 schwarze 322:
1.69 ! schwarze 323: if ( ! man_node_append(man, n))
1.1 kristaps 324: return(0);
1.27 schwarze 325:
1.69 ! schwarze 326: man->next = MAN_NEXT_SIBLING;
1.10 schwarze 327: return(1);
328: }
329:
330:
1.22 schwarze 331: /*
332: * Free all of the resources held by a node. This does NOT unlink a
333: * node from its context; for that, see man_node_unlink().
334: */
335: static void
1.1 kristaps 336: man_node_free(struct man_node *p)
337: {
338:
339: if (p->string)
340: free(p->string);
341: free(p);
342: }
343:
344:
345: void
1.69 ! schwarze 346: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 347: {
348:
1.22 schwarze 349: while (p->child)
1.69 ! schwarze 350: man_node_delete(man, p->child);
1.22 schwarze 351:
1.69 ! schwarze 352: man_node_unlink(man, p);
1.1 kristaps 353: man_node_free(p);
354: }
355:
1.57 schwarze 356: int
1.69 ! schwarze 357: man_addeqn(struct man *man, const struct eqn *ep)
1.57 schwarze 358: {
359: struct man_node *n;
360:
1.69 ! schwarze 361: assert( ! (MAN_HALT & man->flags));
1.57 schwarze 362:
1.69 ! schwarze 363: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.57 schwarze 364: n->eqn = ep;
365:
1.69 ! schwarze 366: if ( ! man_node_append(man, n))
1.57 schwarze 367: return(0);
368:
1.69 ! schwarze 369: man->next = MAN_NEXT_SIBLING;
! 370: return(man_descope(man, ep->ln, ep->pos));
1.57 schwarze 371: }
1.1 kristaps 372:
1.52 schwarze 373: int
1.69 ! schwarze 374: man_addspan(struct man *man, const struct tbl_span *sp)
1.52 schwarze 375: {
1.55 schwarze 376: struct man_node *n;
1.52 schwarze 377:
1.69 ! schwarze 378: assert( ! (MAN_HALT & man->flags));
1.55 schwarze 379:
1.69 ! schwarze 380: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.55 schwarze 381: n->span = sp;
382:
1.69 ! schwarze 383: if ( ! man_node_append(man, n))
1.52 schwarze 384: return(0);
1.55 schwarze 385:
1.69 ! schwarze 386: man->next = MAN_NEXT_SIBLING;
! 387: return(man_descope(man, sp->line, 0));
1.52 schwarze 388: }
389:
390: static int
1.69 ! schwarze 391: man_descope(struct man *man, int line, int offs)
1.52 schwarze 392: {
393: /*
394: * Co-ordinate what happens with having a next-line scope open:
395: * first close out the element scope (if applicable), then close
396: * out the block scope (also if applicable).
397: */
398:
1.69 ! schwarze 399: if (MAN_ELINE & man->flags) {
! 400: man->flags &= ~MAN_ELINE;
! 401: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 402: return(0);
403: }
404:
1.69 ! schwarze 405: if ( ! (MAN_BLINE & man->flags))
1.52 schwarze 406: return(1);
1.69 ! schwarze 407: man->flags &= ~MAN_BLINE;
1.52 schwarze 408:
1.69 ! schwarze 409: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 410: return(0);
1.69 ! schwarze 411: return(man_body_alloc(man, line, offs, man->last->tok));
1.52 schwarze 412: }
413:
1.1 kristaps 414: static int
1.69 ! schwarze 415: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 416: {
1.27 schwarze 417: int i;
1.26 schwarze 418:
1.10 schwarze 419: /* Literal free-form text whitespace is preserved. */
420:
1.69 ! schwarze 421: if (MAN_LITERAL & man->flags) {
! 422: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.10 schwarze 423: return(0);
1.69 ! schwarze 424: return(man_descope(man, line, offs));
1.10 schwarze 425: }
426:
1.27 schwarze 427: /* Pump blank lines directly into the backend. */
1.10 schwarze 428:
1.31 schwarze 429: for (i = offs; ' ' == buf[i]; i++)
1.10 schwarze 430: /* Skip leading whitespace. */ ;
1.18 schwarze 431:
432: if ('\0' == buf[i]) {
1.27 schwarze 433: /* Allocate a blank entry. */
1.69 ! schwarze 434: if ( ! man_elem_alloc(man, line, offs, MAN_sp))
1.10 schwarze 435: return(0);
1.69 ! schwarze 436: man->next = MAN_NEXT_SIBLING;
1.68 schwarze 437: return(1);
1.10 schwarze 438: }
1.1 kristaps 439:
1.27 schwarze 440: /*
441: * Warn if the last un-escaped character is whitespace. Then
442: * strip away the remaining spaces (tabs stay!).
443: */
1.18 schwarze 444:
1.27 schwarze 445: i = (int)strlen(buf);
446: assert(i);
1.18 schwarze 447:
1.27 schwarze 448: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
449: if (i > 1 && '\\' != buf[i - 2])
1.69 ! schwarze 450: man_pmsg(man, line, i - 1, MANDOCERR_EOLNSPACE);
1.18 schwarze 451:
1.27 schwarze 452: for (--i; i && ' ' == buf[i]; i--)
453: /* Spin back to non-space. */ ;
1.10 schwarze 454:
1.27 schwarze 455: /* Jump ahead of escaped whitespace. */
456: i += '\\' == buf[i] ? 2 : 1;
1.18 schwarze 457:
1.27 schwarze 458: buf[i] = '\0';
1.10 schwarze 459: }
1.9 schwarze 460:
1.69 ! schwarze 461: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.1 kristaps 462: return(0);
1.28 schwarze 463:
464: /*
465: * End-of-sentence check. If the last character is an unescaped
466: * EOS character, then flag the node as being the end of a
467: * sentence. The front-end will know how to interpret this.
468: */
469:
470: assert(i);
1.37 schwarze 471: if (mandoc_eos(buf, (size_t)i, 0))
1.69 ! schwarze 472: man->last->flags |= MAN_EOS;
1.10 schwarze 473:
1.69 ! schwarze 474: return(man_descope(man, line, offs));
1.1 kristaps 475: }
476:
1.53 schwarze 477: static int
1.69 ! schwarze 478: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 479: {
1.59 schwarze 480: int i, ppos;
1.22 schwarze 481: enum mant tok;
1.10 schwarze 482: char mac[5];
483: struct man_node *n;
1.1 kristaps 484:
1.59 schwarze 485: if ('"' == buf[offs]) {
1.69 ! schwarze 486: man_pmsg(man, ln, offs, MANDOCERR_BADCOMMENT);
1.59 schwarze 487: return(1);
488: } else if ('\0' == buf[offs])
1.17 schwarze 489: return(1);
1.1 kristaps 490:
1.59 schwarze 491: ppos = offs;
1.1 kristaps 492:
1.23 schwarze 493: /*
1.59 schwarze 494: * Copy the first word into a nil-terminated buffer.
495: * Stop copying when a tab, space, or eoln is encountered.
1.23 schwarze 496: */
1.27 schwarze 497:
1.59 schwarze 498: i = 0;
499: while (i < 4 && '\0' != buf[offs] &&
500: ' ' != buf[offs] && '\t' != buf[offs])
501: mac[i++] = buf[offs++];
1.1 kristaps 502:
1.59 schwarze 503: mac[i] = '\0';
1.1 kristaps 504:
1.59 schwarze 505: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 506:
1.40 schwarze 507: if (MAN_MAX == tok) {
1.69 ! schwarze 508: mandoc_vmsg(MANDOCERR_MACRO, man->parse, ln,
1.59 schwarze 509: ppos, "%s", buf + ppos - 1);
1.1 kristaps 510: return(1);
511: }
512:
513: /* The macro is sane. Jump to the next word. */
514:
1.59 schwarze 515: while (buf[offs] && ' ' == buf[offs])
516: offs++;
1.18 schwarze 517:
1.27 schwarze 518: /*
519: * Trailing whitespace. Note that tabs are allowed to be passed
520: * into the parser as "text", so we only warn about spaces here.
521: */
1.18 schwarze 522:
1.59 schwarze 523: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.69 ! schwarze 524: man_pmsg(man, ln, offs - 1, MANDOCERR_EOLNSPACE);
1.1 kristaps 525:
1.21 schwarze 526: /*
1.46 schwarze 527: * Remove prior ELINE macro, as it's being clobbered by a new
1.21 schwarze 528: * macro. Note that NSCOPED macros do not close out ELINE
529: * macros---they don't print text---so we let those slip by.
530: */
531:
1.22 schwarze 532: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.69 ! schwarze 533: man->flags & MAN_ELINE) {
! 534: n = man->last;
1.46 schwarze 535: assert(MAN_TEXT != n->type);
1.21 schwarze 536:
1.49 schwarze 537: /* Remove repeated NSCOPED macros causing ELINE. */
538:
1.46 schwarze 539: if (MAN_NSCOPED & man_macros[n->tok].flags)
540: n = n->parent;
1.21 schwarze 541:
1.69 ! schwarze 542: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 543: n->pos, "%s breaks %s", man_macronames[tok],
544: man_macronames[n->tok]);
1.10 schwarze 545:
1.69 ! schwarze 546: man_node_delete(man, n);
! 547: man->flags &= ~MAN_ELINE;
1.63 schwarze 548: }
549:
550: /*
551: * Remove prior BLINE macro that is being clobbered.
552: */
1.69 ! schwarze 553: if ((man->flags & MAN_BLINE) &&
1.63 schwarze 554: (MAN_BSCOPE & man_macros[tok].flags)) {
1.69 ! schwarze 555: n = man->last;
1.64 schwarze 556:
557: /* Might be a text node like 8 in
558: * .TP 8
559: * .SH foo
560: */
561: if (MAN_TEXT == n->type)
562: n = n->parent;
1.63 schwarze 563:
564: /* Remove element that didn't end BLINE, if any. */
565: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
566: n = n->parent;
567:
568: assert(MAN_HEAD == n->type);
569: n = n->parent;
570: assert(MAN_BLOCK == n->type);
571: assert(MAN_SCOPED & man_macros[n->tok].flags);
572:
1.69 ! schwarze 573: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 574: n->pos, "%s breaks %s", man_macronames[tok],
575: man_macronames[n->tok]);
576:
1.69 ! schwarze 577: man_node_delete(man, n);
! 578: man->flags &= ~MAN_BLINE;
1.10 schwarze 579: }
580:
1.24 schwarze 581: /*
582: * Save the fact that we're in the next-line for a block. In
583: * this way, embedded roff instructions can "remember" state
584: * when they exit.
585: */
586:
1.69 ! schwarze 587: if (MAN_BLINE & man->flags)
! 588: man->flags |= MAN_BPLINE;
1.24 schwarze 589:
590: /* Call to handler... */
1.1 kristaps 591:
1.22 schwarze 592: assert(man_macros[tok].fp);
1.69 ! schwarze 593: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.1 kristaps 594: goto err;
595:
1.21 schwarze 596: /*
597: * We weren't in a block-line scope when entering the
598: * above-parsed macro, so return.
599: */
600:
1.69 ! schwarze 601: if ( ! (MAN_BPLINE & man->flags)) {
! 602: man->flags &= ~MAN_ILINE;
1.9 schwarze 603: return(1);
1.21 schwarze 604: }
1.69 ! schwarze 605: man->flags &= ~MAN_BPLINE;
1.21 schwarze 606:
607: /*
608: * If we're in a block scope, then allow this macro to slip by
609: * without closing scope around it.
610: */
611:
1.69 ! schwarze 612: if (MAN_ILINE & man->flags) {
! 613: man->flags &= ~MAN_ILINE;
1.21 schwarze 614: return(1);
615: }
1.9 schwarze 616:
617: /*
618: * If we've opened a new next-line element scope, then return
619: * now, as the next line will close out the block scope.
620: */
621:
1.69 ! schwarze 622: if (MAN_ELINE & man->flags)
1.9 schwarze 623: return(1);
624:
625: /* Close out the block scope opened in the prior line. */
1.1 kristaps 626:
1.69 ! schwarze 627: assert(MAN_BLINE & man->flags);
! 628: man->flags &= ~MAN_BLINE;
1.1 kristaps 629:
1.69 ! schwarze 630: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.9 schwarze 631: return(0);
1.69 ! schwarze 632: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 633:
634: err: /* Error out. */
635:
1.69 ! schwarze 636: man->flags |= MAN_HALT;
1.1 kristaps 637: return(0);
638: }
1.21 schwarze 639:
1.22 schwarze 640: /*
1.69 ! schwarze 641: * Unlink a node from its context. If "man" is provided, the last parse
1.22 schwarze 642: * point will also be adjusted accordingly.
643: */
644: static void
1.69 ! schwarze 645: man_node_unlink(struct man *man, struct man_node *n)
1.21 schwarze 646: {
647:
1.22 schwarze 648: /* Adjust siblings. */
649:
650: if (n->prev)
1.21 schwarze 651: n->prev->next = n->next;
1.22 schwarze 652: if (n->next)
653: n->next->prev = n->prev;
654:
655: /* Adjust parent. */
656:
657: if (n->parent) {
658: n->parent->nchild--;
659: if (n->parent->child == n)
660: n->parent->child = n->prev ? n->prev : n->next;
661: }
662:
663: /* Adjust parse point, if applicable. */
664:
1.69 ! schwarze 665: if (man && man->last == n) {
1.22 schwarze 666: /*XXX: this can occur when bailing from validation. */
667: /*assert(NULL == n->next);*/
668: if (n->prev) {
1.69 ! schwarze 669: man->last = n->prev;
! 670: man->next = MAN_NEXT_SIBLING;
1.22 schwarze 671: } else {
1.69 ! schwarze 672: man->last = n->parent;
! 673: man->next = MAN_NEXT_CHILD;
1.21 schwarze 674: }
675: }
676:
1.69 ! schwarze 677: if (man && man->first == n)
! 678: man->first = NULL;
1.62 schwarze 679: }
680:
681: const struct mparse *
1.69 ! schwarze 682: man_mparse(const struct man *man)
1.62 schwarze 683: {
684:
1.69 ! schwarze 685: assert(man && man->parse);
! 686: return(man->parse);
1.4 schwarze 687: }
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