Annotation of src/usr.bin/mandoc/man.c, Revision 1.74
1.74 ! schwarze 1: /* $Id: man.c,v 1.73 2014/01/05 20:26:27 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"
1.1 kristaps 29: #include "libman.h"
1.16 schwarze 30: #include "libmandoc.h"
1.1 kristaps 31:
32: const char *const __man_macronames[MAN_MAX] = {
1.3 schwarze 33: "br", "TH", "SH", "SS",
1.1 kristaps 34: "TP", "LP", "PP", "P",
35: "IP", "HP", "SM", "SB",
36: "BI", "IB", "BR", "RB",
37: "R", "B", "I", "IR",
1.50 schwarze 38: "RI", "na", "sp", "nf",
39: "fi", "RE", "RS", "DT",
40: "UC", "PD", "AT", "in",
1.70 schwarze 41: "ft", "OP", "EX", "EE",
42: "UR", "UE"
1.1 kristaps 43: };
44:
45: const char * const *man_macronames = __man_macronames;
46:
1.54 schwarze 47: static struct man_node *man_node_alloc(struct man *, int, int,
1.22 schwarze 48: enum man_type, enum mant);
1.1 kristaps 49: static int man_node_append(struct man *,
50: struct man_node *);
1.22 schwarze 51: static void man_node_free(struct man_node *);
52: static void man_node_unlink(struct man *,
53: struct man_node *);
1.31 schwarze 54: static int man_ptext(struct man *, int, char *, int);
55: static int man_pmacro(struct man *, int, char *, int);
1.1 kristaps 56: static void man_free1(struct man *);
1.16 schwarze 57: static void man_alloc1(struct man *);
1.52 schwarze 58: static int man_descope(struct man *, int, int);
1.1 kristaps 59:
60:
61: const struct man_node *
1.69 schwarze 62: man_node(const struct man *man)
1.1 kristaps 63: {
64:
1.69 schwarze 65: assert( ! (MAN_HALT & man->flags));
66: return(man->first);
1.1 kristaps 67: }
68:
69:
70: const struct man_meta *
1.69 schwarze 71: man_meta(const struct man *man)
1.1 kristaps 72: {
73:
1.69 schwarze 74: assert( ! (MAN_HALT & man->flags));
75: return(&man->meta);
1.1 kristaps 76: }
77:
78:
1.16 schwarze 79: void
1.1 kristaps 80: man_reset(struct man *man)
81: {
82:
83: man_free1(man);
1.16 schwarze 84: man_alloc1(man);
1.1 kristaps 85: }
86:
87:
88: void
89: man_free(struct man *man)
90: {
91:
92: man_free1(man);
93: free(man);
94: }
95:
96:
97: struct man *
1.73 schwarze 98: man_alloc(struct roff *roff, struct mparse *parse, int quick)
1.1 kristaps 99: {
100: struct man *p;
101:
1.16 schwarze 102: p = mandoc_calloc(1, sizeof(struct man));
1.1 kristaps 103:
1.13 schwarze 104: man_hash_init();
1.59 schwarze 105: p->parse = parse;
1.73 schwarze 106: p->quick = quick;
1.60 schwarze 107: p->roff = roff;
1.16 schwarze 108:
109: man_alloc1(p);
1.1 kristaps 110: return(p);
111: }
112:
113:
114: int
1.69 schwarze 115: man_endparse(struct man *man)
1.1 kristaps 116: {
117:
1.69 schwarze 118: assert( ! (MAN_HALT & man->flags));
119: if (man_macroend(man))
1.1 kristaps 120: return(1);
1.69 schwarze 121: man->flags |= MAN_HALT;
1.1 kristaps 122: return(0);
123: }
124:
125:
126: int
1.69 schwarze 127: man_parseln(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 128: {
1.25 schwarze 129:
1.69 schwarze 130: man->flags |= MAN_NEWLINE;
1.54 schwarze 131:
1.69 schwarze 132: assert( ! (MAN_HALT & man->flags));
1.59 schwarze 133:
1.69 schwarze 134: return (roff_getcontrol(man->roff, buf, &offs) ?
135: man_pmacro(man, ln, buf, offs) :
136: man_ptext(man, ln, buf, offs));
1.1 kristaps 137: }
138:
139:
140: static void
141: man_free1(struct man *man)
142: {
143:
144: if (man->first)
1.22 schwarze 145: man_node_delete(man, man->first);
1.1 kristaps 146: if (man->meta.title)
147: free(man->meta.title);
148: if (man->meta.source)
149: free(man->meta.source);
1.56 schwarze 150: if (man->meta.date)
151: free(man->meta.date);
1.1 kristaps 152: if (man->meta.vol)
153: free(man->meta.vol);
1.29 schwarze 154: if (man->meta.msec)
155: free(man->meta.msec);
1.1 kristaps 156: }
157:
158:
1.16 schwarze 159: static void
1.69 schwarze 160: man_alloc1(struct man *man)
1.1 kristaps 161: {
162:
1.69 schwarze 163: memset(&man->meta, 0, sizeof(struct man_meta));
164: man->flags = 0;
165: man->last = mandoc_calloc(1, sizeof(struct man_node));
166: man->first = man->last;
167: man->last->type = MAN_ROOT;
168: man->last->tok = MAN_MAX;
169: man->next = MAN_NEXT_CHILD;
1.1 kristaps 170: }
171:
172:
173: static int
174: man_node_append(struct man *man, struct man_node *p)
175: {
176:
177: assert(man->last);
178: assert(man->first);
179: assert(MAN_ROOT != p->type);
180:
181: switch (man->next) {
182: case (MAN_NEXT_SIBLING):
183: man->last->next = p;
184: p->prev = man->last;
185: p->parent = man->last->parent;
186: break;
187: case (MAN_NEXT_CHILD):
188: man->last->child = p;
189: p->parent = man->last;
190: break;
191: default:
192: abort();
193: /* NOTREACHED */
194: }
1.5 schwarze 195:
1.22 schwarze 196: assert(p->parent);
1.5 schwarze 197: p->parent->nchild++;
1.1 kristaps 198:
1.9 schwarze 199: if ( ! man_valid_pre(man, p))
200: return(0);
201:
202: switch (p->type) {
203: case (MAN_HEAD):
204: assert(MAN_BLOCK == p->parent->type);
205: p->parent->head = p;
206: break;
1.59 schwarze 207: case (MAN_TAIL):
208: assert(MAN_BLOCK == p->parent->type);
209: p->parent->tail = p;
210: break;
1.9 schwarze 211: case (MAN_BODY):
212: assert(MAN_BLOCK == p->parent->type);
213: p->parent->body = p;
214: break;
215: default:
216: break;
217: }
218:
1.1 kristaps 219: man->last = p;
220:
221: switch (p->type) {
1.52 schwarze 222: case (MAN_TBL):
223: /* FALLTHROUGH */
1.1 kristaps 224: case (MAN_TEXT):
225: if ( ! man_valid_post(man))
226: return(0);
227: break;
228: default:
229: break;
230: }
231:
232: return(1);
233: }
234:
235:
236: static struct man_node *
1.69 schwarze 237: man_node_alloc(struct man *man, int line, int pos,
1.54 schwarze 238: enum man_type type, enum mant tok)
1.1 kristaps 239: {
240: struct man_node *p;
241:
1.16 schwarze 242: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 243: p->line = line;
244: p->pos = pos;
245: p->type = type;
246: p->tok = tok;
1.54 schwarze 247:
1.69 schwarze 248: if (MAN_NEWLINE & man->flags)
1.54 schwarze 249: p->flags |= MAN_LINE;
1.69 schwarze 250: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 251: return(p);
252: }
253:
254:
255: int
1.69 schwarze 256: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 257: {
258: struct man_node *p;
259:
1.69 schwarze 260: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
261: if ( ! man_node_append(man, p))
1.10 schwarze 262: return(0);
1.69 schwarze 263: man->next = MAN_NEXT_CHILD;
1.10 schwarze 264: return(1);
1.1 kristaps 265: }
266:
267:
268: int
1.69 schwarze 269: man_tail_alloc(struct man *man, int line, int pos, enum mant tok)
1.59 schwarze 270: {
271: struct man_node *p;
272:
1.69 schwarze 273: p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
274: if ( ! man_node_append(man, p))
1.59 schwarze 275: return(0);
1.69 schwarze 276: man->next = MAN_NEXT_CHILD;
1.59 schwarze 277: return(1);
278: }
279:
280:
281: int
1.69 schwarze 282: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 283: {
284: struct man_node *p;
285:
1.69 schwarze 286: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
287: if ( ! man_node_append(man, p))
1.9 schwarze 288: return(0);
1.69 schwarze 289: man->next = MAN_NEXT_CHILD;
1.9 schwarze 290: return(1);
291: }
292:
293:
294: int
1.69 schwarze 295: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 296: {
297: struct man_node *p;
298:
1.69 schwarze 299: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
300: if ( ! man_node_append(man, p))
1.9 schwarze 301: return(0);
1.69 schwarze 302: man->next = MAN_NEXT_CHILD;
1.9 schwarze 303: return(1);
304: }
305:
306:
307: int
1.69 schwarze 308: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 309: {
310: struct man_node *p;
311:
1.69 schwarze 312: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
313: if ( ! man_node_append(man, p))
1.9 schwarze 314: return(0);
1.69 schwarze 315: man->next = MAN_NEXT_CHILD;
1.9 schwarze 316: return(1);
317: }
318:
1.27 schwarze 319: int
1.69 schwarze 320: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 321: {
1.10 schwarze 322: struct man_node *n;
1.1 kristaps 323:
1.69 schwarze 324: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
325: n->string = roff_strdup(man->roff, word);
1.10 schwarze 326:
1.69 schwarze 327: if ( ! man_node_append(man, n))
1.1 kristaps 328: return(0);
1.27 schwarze 329:
1.69 schwarze 330: man->next = MAN_NEXT_SIBLING;
1.10 schwarze 331: return(1);
332: }
333:
334:
1.22 schwarze 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
1.69 schwarze 350: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 351: {
352:
1.22 schwarze 353: while (p->child)
1.69 schwarze 354: man_node_delete(man, p->child);
1.22 schwarze 355:
1.69 schwarze 356: man_node_unlink(man, p);
1.1 kristaps 357: man_node_free(p);
358: }
359:
1.57 schwarze 360: int
1.69 schwarze 361: man_addeqn(struct man *man, const struct eqn *ep)
1.57 schwarze 362: {
363: struct man_node *n;
364:
1.69 schwarze 365: assert( ! (MAN_HALT & man->flags));
1.57 schwarze 366:
1.69 schwarze 367: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.57 schwarze 368: n->eqn = ep;
369:
1.69 schwarze 370: if ( ! man_node_append(man, n))
1.57 schwarze 371: return(0);
372:
1.69 schwarze 373: man->next = MAN_NEXT_SIBLING;
374: return(man_descope(man, ep->ln, ep->pos));
1.57 schwarze 375: }
1.1 kristaps 376:
1.52 schwarze 377: int
1.69 schwarze 378: man_addspan(struct man *man, const struct tbl_span *sp)
1.52 schwarze 379: {
1.55 schwarze 380: struct man_node *n;
1.52 schwarze 381:
1.69 schwarze 382: assert( ! (MAN_HALT & man->flags));
1.55 schwarze 383:
1.69 schwarze 384: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.55 schwarze 385: n->span = sp;
386:
1.69 schwarze 387: if ( ! man_node_append(man, n))
1.52 schwarze 388: return(0);
1.55 schwarze 389:
1.69 schwarze 390: man->next = MAN_NEXT_SIBLING;
391: return(man_descope(man, sp->line, 0));
1.52 schwarze 392: }
393:
394: static int
1.69 schwarze 395: man_descope(struct man *man, int line, int offs)
1.52 schwarze 396: {
397: /*
398: * Co-ordinate what happens with having a next-line scope open:
399: * first close out the element scope (if applicable), then close
400: * out the block scope (also if applicable).
401: */
402:
1.69 schwarze 403: if (MAN_ELINE & man->flags) {
404: man->flags &= ~MAN_ELINE;
405: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 406: return(0);
407: }
408:
1.69 schwarze 409: if ( ! (MAN_BLINE & man->flags))
1.52 schwarze 410: return(1);
1.69 schwarze 411: man->flags &= ~MAN_BLINE;
1.52 schwarze 412:
1.69 schwarze 413: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 414: return(0);
1.69 schwarze 415: return(man_body_alloc(man, line, offs, man->last->tok));
1.52 schwarze 416: }
417:
1.1 kristaps 418: static int
1.69 schwarze 419: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 420: {
1.27 schwarze 421: int i;
1.26 schwarze 422:
1.10 schwarze 423: /* Literal free-form text whitespace is preserved. */
424:
1.69 schwarze 425: if (MAN_LITERAL & man->flags) {
426: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.10 schwarze 427: return(0);
1.69 schwarze 428: return(man_descope(man, line, offs));
1.10 schwarze 429: }
430:
1.31 schwarze 431: for (i = offs; ' ' == buf[i]; i++)
1.10 schwarze 432: /* Skip leading whitespace. */ ;
1.18 schwarze 433:
1.71 schwarze 434: /*
435: * Blank lines are ignored right after headings
436: * but add a single vertical space elsewhere.
437: */
438:
1.18 schwarze 439: if ('\0' == buf[i]) {
1.27 schwarze 440: /* Allocate a blank entry. */
1.71 schwarze 441: if (MAN_SH != man->last->tok &&
442: MAN_SS != man->last->tok) {
443: if ( ! man_elem_alloc(man, line, offs, MAN_sp))
444: return(0);
445: man->next = MAN_NEXT_SIBLING;
446: }
1.68 schwarze 447: return(1);
1.10 schwarze 448: }
1.1 kristaps 449:
1.27 schwarze 450: /*
451: * Warn if the last un-escaped character is whitespace. Then
452: * strip away the remaining spaces (tabs stay!).
453: */
1.18 schwarze 454:
1.27 schwarze 455: i = (int)strlen(buf);
456: assert(i);
1.18 schwarze 457:
1.27 schwarze 458: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
459: if (i > 1 && '\\' != buf[i - 2])
1.69 schwarze 460: man_pmsg(man, line, i - 1, MANDOCERR_EOLNSPACE);
1.18 schwarze 461:
1.27 schwarze 462: for (--i; i && ' ' == buf[i]; i--)
463: /* Spin back to non-space. */ ;
1.10 schwarze 464:
1.27 schwarze 465: /* Jump ahead of escaped whitespace. */
466: i += '\\' == buf[i] ? 2 : 1;
1.18 schwarze 467:
1.27 schwarze 468: buf[i] = '\0';
1.10 schwarze 469: }
1.9 schwarze 470:
1.69 schwarze 471: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.1 kristaps 472: return(0);
1.28 schwarze 473:
474: /*
475: * End-of-sentence check. If the last character is an unescaped
476: * EOS character, then flag the node as being the end of a
477: * sentence. The front-end will know how to interpret this.
478: */
479:
480: assert(i);
1.72 schwarze 481: if (mandoc_eos(buf, (size_t)i))
1.69 schwarze 482: man->last->flags |= MAN_EOS;
1.10 schwarze 483:
1.69 schwarze 484: return(man_descope(man, line, offs));
1.1 kristaps 485: }
486:
1.53 schwarze 487: static int
1.69 schwarze 488: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 489: {
1.59 schwarze 490: int i, ppos;
1.22 schwarze 491: enum mant tok;
1.10 schwarze 492: char mac[5];
493: struct man_node *n;
1.1 kristaps 494:
1.59 schwarze 495: if ('"' == buf[offs]) {
1.69 schwarze 496: man_pmsg(man, ln, offs, MANDOCERR_BADCOMMENT);
1.59 schwarze 497: return(1);
498: } else if ('\0' == buf[offs])
1.17 schwarze 499: return(1);
1.1 kristaps 500:
1.59 schwarze 501: ppos = offs;
1.1 kristaps 502:
1.23 schwarze 503: /*
1.59 schwarze 504: * Copy the first word into a nil-terminated buffer.
505: * Stop copying when a tab, space, or eoln is encountered.
1.23 schwarze 506: */
1.27 schwarze 507:
1.59 schwarze 508: i = 0;
509: while (i < 4 && '\0' != buf[offs] &&
510: ' ' != buf[offs] && '\t' != buf[offs])
511: mac[i++] = buf[offs++];
1.1 kristaps 512:
1.59 schwarze 513: mac[i] = '\0';
1.1 kristaps 514:
1.59 schwarze 515: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 516:
1.40 schwarze 517: if (MAN_MAX == tok) {
1.69 schwarze 518: mandoc_vmsg(MANDOCERR_MACRO, man->parse, ln,
1.59 schwarze 519: ppos, "%s", buf + ppos - 1);
1.1 kristaps 520: return(1);
521: }
522:
523: /* The macro is sane. Jump to the next word. */
524:
1.59 schwarze 525: while (buf[offs] && ' ' == buf[offs])
526: offs++;
1.18 schwarze 527:
1.27 schwarze 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: */
1.18 schwarze 532:
1.59 schwarze 533: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.69 schwarze 534: man_pmsg(man, ln, offs - 1, MANDOCERR_EOLNSPACE);
1.1 kristaps 535:
1.21 schwarze 536: /*
1.46 schwarze 537: * Remove prior ELINE macro, as it's being clobbered by a new
1.21 schwarze 538: * macro. Note that NSCOPED macros do not close out ELINE
539: * macros---they don't print text---so we let those slip by.
540: */
541:
1.22 schwarze 542: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.69 schwarze 543: man->flags & MAN_ELINE) {
544: n = man->last;
1.46 schwarze 545: assert(MAN_TEXT != n->type);
1.21 schwarze 546:
1.49 schwarze 547: /* Remove repeated NSCOPED macros causing ELINE. */
548:
1.46 schwarze 549: if (MAN_NSCOPED & man_macros[n->tok].flags)
550: n = n->parent;
1.21 schwarze 551:
1.69 schwarze 552: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 553: n->pos, "%s breaks %s", man_macronames[tok],
554: man_macronames[n->tok]);
1.10 schwarze 555:
1.69 schwarze 556: man_node_delete(man, n);
557: man->flags &= ~MAN_ELINE;
1.63 schwarze 558: }
559:
560: /*
561: * Remove prior BLINE macro that is being clobbered.
562: */
1.69 schwarze 563: if ((man->flags & MAN_BLINE) &&
1.63 schwarze 564: (MAN_BSCOPE & man_macros[tok].flags)) {
1.69 schwarze 565: n = man->last;
1.64 schwarze 566:
567: /* Might be a text node like 8 in
568: * .TP 8
569: * .SH foo
570: */
571: if (MAN_TEXT == n->type)
572: n = n->parent;
1.63 schwarze 573:
574: /* Remove element that didn't end BLINE, if any. */
575: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
576: n = n->parent;
577:
578: assert(MAN_HEAD == n->type);
579: n = n->parent;
580: assert(MAN_BLOCK == n->type);
581: assert(MAN_SCOPED & man_macros[n->tok].flags);
582:
1.69 schwarze 583: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 584: n->pos, "%s breaks %s", man_macronames[tok],
585: man_macronames[n->tok]);
586:
1.69 schwarze 587: man_node_delete(man, n);
588: man->flags &= ~MAN_BLINE;
1.10 schwarze 589: }
590:
1.24 schwarze 591: /*
592: * Save the fact that we're in the next-line for a block. In
593: * this way, embedded roff instructions can "remember" state
594: * when they exit.
595: */
596:
1.69 schwarze 597: if (MAN_BLINE & man->flags)
598: man->flags |= MAN_BPLINE;
1.24 schwarze 599:
600: /* Call to handler... */
1.1 kristaps 601:
1.22 schwarze 602: assert(man_macros[tok].fp);
1.69 schwarze 603: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.1 kristaps 604: goto err;
1.73 schwarze 605:
606: /* In quick mode (for mandocdb), abort after the NAME section. */
607:
608: if (man->quick && MAN_SH == tok &&
609: strcmp(man->last->prev->child->string, "NAME"))
610: return(2);
1.1 kristaps 611:
1.21 schwarze 612: /*
613: * We weren't in a block-line scope when entering the
614: * above-parsed macro, so return.
615: */
616:
1.69 schwarze 617: if ( ! (MAN_BPLINE & man->flags)) {
618: man->flags &= ~MAN_ILINE;
1.9 schwarze 619: return(1);
1.21 schwarze 620: }
1.69 schwarze 621: man->flags &= ~MAN_BPLINE;
1.21 schwarze 622:
623: /*
624: * If we're in a block scope, then allow this macro to slip by
625: * without closing scope around it.
626: */
627:
1.69 schwarze 628: if (MAN_ILINE & man->flags) {
629: man->flags &= ~MAN_ILINE;
1.21 schwarze 630: return(1);
631: }
1.9 schwarze 632:
633: /*
634: * If we've opened a new next-line element scope, then return
635: * now, as the next line will close out the block scope.
636: */
637:
1.69 schwarze 638: if (MAN_ELINE & man->flags)
1.9 schwarze 639: return(1);
640:
641: /* Close out the block scope opened in the prior line. */
1.1 kristaps 642:
1.69 schwarze 643: assert(MAN_BLINE & man->flags);
644: man->flags &= ~MAN_BLINE;
1.1 kristaps 645:
1.69 schwarze 646: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.9 schwarze 647: return(0);
1.69 schwarze 648: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 649:
650: err: /* Error out. */
651:
1.69 schwarze 652: man->flags |= MAN_HALT;
1.1 kristaps 653: return(0);
654: }
1.21 schwarze 655:
1.22 schwarze 656: /*
1.69 schwarze 657: * Unlink a node from its context. If "man" is provided, the last parse
1.22 schwarze 658: * point will also be adjusted accordingly.
659: */
660: static void
1.69 schwarze 661: man_node_unlink(struct man *man, struct man_node *n)
1.21 schwarze 662: {
663:
1.22 schwarze 664: /* Adjust siblings. */
665:
666: if (n->prev)
1.21 schwarze 667: n->prev->next = n->next;
1.22 schwarze 668: if (n->next)
669: n->next->prev = n->prev;
670:
671: /* Adjust parent. */
672:
673: if (n->parent) {
674: n->parent->nchild--;
675: if (n->parent->child == n)
676: n->parent->child = n->prev ? n->prev : n->next;
677: }
678:
679: /* Adjust parse point, if applicable. */
680:
1.69 schwarze 681: if (man && man->last == n) {
1.22 schwarze 682: /*XXX: this can occur when bailing from validation. */
683: /*assert(NULL == n->next);*/
684: if (n->prev) {
1.69 schwarze 685: man->last = n->prev;
686: man->next = MAN_NEXT_SIBLING;
1.22 schwarze 687: } else {
1.69 schwarze 688: man->last = n->parent;
689: man->next = MAN_NEXT_CHILD;
1.21 schwarze 690: }
691: }
692:
1.69 schwarze 693: if (man && man->first == n)
694: man->first = NULL;
1.62 schwarze 695: }
696:
697: const struct mparse *
1.69 schwarze 698: man_mparse(const struct man *man)
1.62 schwarze 699: {
700:
1.69 schwarze 701: assert(man && man->parse);
702: return(man->parse);
1.4 schwarze 703: }
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