Annotation of src/usr.bin/mandoc/man.c, Revision 1.73
1.73 ! schwarze 1: /* $Id: man.c,v 1.72 2013/12/30 00:52:18 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>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.2 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.14 schwarze 18: #include <sys/types.h>
19:
1.1 kristaps 20: #include <assert.h>
21: #include <stdarg.h>
22: #include <stdlib.h>
23: #include <stdio.h>
24: #include <string.h>
25:
1.59 schwarze 26: #include "man.h"
1.33 schwarze 27: #include "mandoc.h"
1.1 kristaps 28: #include "libman.h"
1.16 schwarze 29: #include "libmandoc.h"
1.1 kristaps 30:
31: const char *const __man_macronames[MAN_MAX] = {
1.3 schwarze 32: "br", "TH", "SH", "SS",
1.1 kristaps 33: "TP", "LP", "PP", "P",
34: "IP", "HP", "SM", "SB",
35: "BI", "IB", "BR", "RB",
36: "R", "B", "I", "IR",
1.50 schwarze 37: "RI", "na", "sp", "nf",
38: "fi", "RE", "RS", "DT",
39: "UC", "PD", "AT", "in",
1.70 schwarze 40: "ft", "OP", "EX", "EE",
41: "UR", "UE"
1.1 kristaps 42: };
43:
44: const char * const *man_macronames = __man_macronames;
45:
1.54 schwarze 46: static struct man_node *man_node_alloc(struct man *, int, int,
1.22 schwarze 47: enum man_type, enum mant);
1.1 kristaps 48: static int man_node_append(struct man *,
49: struct man_node *);
1.22 schwarze 50: static void man_node_free(struct man_node *);
51: static void man_node_unlink(struct man *,
52: struct man_node *);
1.31 schwarze 53: static int man_ptext(struct man *, int, char *, int);
54: static int man_pmacro(struct man *, int, char *, int);
1.1 kristaps 55: static void man_free1(struct man *);
1.16 schwarze 56: static void man_alloc1(struct man *);
1.52 schwarze 57: static int man_descope(struct man *, int, int);
1.1 kristaps 58:
59:
60: const struct man_node *
1.69 schwarze 61: man_node(const struct man *man)
1.1 kristaps 62: {
63:
1.69 schwarze 64: assert( ! (MAN_HALT & man->flags));
65: return(man->first);
1.1 kristaps 66: }
67:
68:
69: const struct man_meta *
1.69 schwarze 70: man_meta(const struct man *man)
1.1 kristaps 71: {
72:
1.69 schwarze 73: assert( ! (MAN_HALT & man->flags));
74: return(&man->meta);
1.1 kristaps 75: }
76:
77:
1.16 schwarze 78: void
1.1 kristaps 79: man_reset(struct man *man)
80: {
81:
82: man_free1(man);
1.16 schwarze 83: man_alloc1(man);
1.1 kristaps 84: }
85:
86:
87: void
88: man_free(struct man *man)
89: {
90:
91: man_free1(man);
92: free(man);
93: }
94:
95:
96: struct man *
1.73 ! schwarze 97: man_alloc(struct roff *roff, struct mparse *parse, int quick)
1.1 kristaps 98: {
99: struct man *p;
100:
1.16 schwarze 101: p = mandoc_calloc(1, sizeof(struct man));
1.1 kristaps 102:
1.13 schwarze 103: man_hash_init();
1.59 schwarze 104: p->parse = parse;
1.73 ! schwarze 105: p->quick = quick;
1.60 schwarze 106: p->roff = roff;
1.16 schwarze 107:
108: man_alloc1(p);
1.1 kristaps 109: return(p);
110: }
111:
112:
113: int
1.69 schwarze 114: man_endparse(struct man *man)
1.1 kristaps 115: {
116:
1.69 schwarze 117: assert( ! (MAN_HALT & man->flags));
118: if (man_macroend(man))
1.1 kristaps 119: return(1);
1.69 schwarze 120: man->flags |= MAN_HALT;
1.1 kristaps 121: return(0);
122: }
123:
124:
125: int
1.69 schwarze 126: man_parseln(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 127: {
1.25 schwarze 128:
1.69 schwarze 129: man->flags |= MAN_NEWLINE;
1.54 schwarze 130:
1.69 schwarze 131: assert( ! (MAN_HALT & man->flags));
1.59 schwarze 132:
1.69 schwarze 133: return (roff_getcontrol(man->roff, buf, &offs) ?
134: man_pmacro(man, ln, buf, offs) :
135: man_ptext(man, ln, buf, offs));
1.1 kristaps 136: }
137:
138:
139: static void
140: man_free1(struct man *man)
141: {
142:
143: if (man->first)
1.22 schwarze 144: man_node_delete(man, man->first);
1.1 kristaps 145: if (man->meta.title)
146: free(man->meta.title);
147: if (man->meta.source)
148: free(man->meta.source);
1.56 schwarze 149: if (man->meta.date)
150: free(man->meta.date);
1.1 kristaps 151: if (man->meta.vol)
152: free(man->meta.vol);
1.29 schwarze 153: if (man->meta.msec)
154: free(man->meta.msec);
1.1 kristaps 155: }
156:
157:
1.16 schwarze 158: static void
1.69 schwarze 159: man_alloc1(struct man *man)
1.1 kristaps 160: {
161:
1.69 schwarze 162: memset(&man->meta, 0, sizeof(struct man_meta));
163: man->flags = 0;
164: man->last = mandoc_calloc(1, sizeof(struct man_node));
165: man->first = man->last;
166: man->last->type = MAN_ROOT;
167: man->last->tok = MAN_MAX;
168: man->next = MAN_NEXT_CHILD;
1.1 kristaps 169: }
170:
171:
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: }
1.5 schwarze 194:
1.22 schwarze 195: assert(p->parent);
1.5 schwarze 196: p->parent->nchild++;
1.1 kristaps 197:
1.9 schwarze 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;
1.59 schwarze 206: case (MAN_TAIL):
207: assert(MAN_BLOCK == p->parent->type);
208: p->parent->tail = p;
209: break;
1.9 schwarze 210: case (MAN_BODY):
211: assert(MAN_BLOCK == p->parent->type);
212: p->parent->body = p;
213: break;
214: default:
215: break;
216: }
217:
1.1 kristaps 218: man->last = p;
219:
220: switch (p->type) {
1.52 schwarze 221: case (MAN_TBL):
222: /* FALLTHROUGH */
1.1 kristaps 223: case (MAN_TEXT):
224: if ( ! man_valid_post(man))
225: return(0);
226: break;
227: default:
228: break;
229: }
230:
231: return(1);
232: }
233:
234:
235: static struct man_node *
1.69 schwarze 236: man_node_alloc(struct man *man, int line, int pos,
1.54 schwarze 237: enum man_type type, enum mant tok)
1.1 kristaps 238: {
239: struct man_node *p;
240:
1.16 schwarze 241: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 242: p->line = line;
243: p->pos = pos;
244: p->type = type;
245: p->tok = tok;
1.54 schwarze 246:
1.69 schwarze 247: if (MAN_NEWLINE & man->flags)
1.54 schwarze 248: p->flags |= MAN_LINE;
1.69 schwarze 249: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 250: return(p);
251: }
252:
253:
254: int
1.69 schwarze 255: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 256: {
257: struct man_node *p;
258:
1.69 schwarze 259: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
260: if ( ! man_node_append(man, p))
1.10 schwarze 261: return(0);
1.69 schwarze 262: man->next = MAN_NEXT_CHILD;
1.10 schwarze 263: return(1);
1.1 kristaps 264: }
265:
266:
267: int
1.69 schwarze 268: man_tail_alloc(struct man *man, int line, int pos, enum mant tok)
1.59 schwarze 269: {
270: struct man_node *p;
271:
1.69 schwarze 272: p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
273: if ( ! man_node_append(man, p))
1.59 schwarze 274: return(0);
1.69 schwarze 275: man->next = MAN_NEXT_CHILD;
1.59 schwarze 276: return(1);
277: }
278:
279:
280: int
1.69 schwarze 281: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 282: {
283: struct man_node *p;
284:
1.69 schwarze 285: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
286: if ( ! man_node_append(man, p))
1.9 schwarze 287: return(0);
1.69 schwarze 288: man->next = MAN_NEXT_CHILD;
1.9 schwarze 289: return(1);
290: }
291:
292:
293: int
1.69 schwarze 294: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 295: {
296: struct man_node *p;
297:
1.69 schwarze 298: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
299: if ( ! man_node_append(man, p))
1.9 schwarze 300: return(0);
1.69 schwarze 301: man->next = MAN_NEXT_CHILD;
1.9 schwarze 302: return(1);
303: }
304:
305:
306: int
1.69 schwarze 307: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 308: {
309: struct man_node *p;
310:
1.69 schwarze 311: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
312: if ( ! man_node_append(man, p))
1.9 schwarze 313: return(0);
1.69 schwarze 314: man->next = MAN_NEXT_CHILD;
1.9 schwarze 315: return(1);
316: }
317:
1.27 schwarze 318: int
1.69 schwarze 319: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 320: {
1.10 schwarze 321: struct man_node *n;
1.1 kristaps 322:
1.69 schwarze 323: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
324: n->string = roff_strdup(man->roff, word);
1.10 schwarze 325:
1.69 schwarze 326: if ( ! man_node_append(man, n))
1.1 kristaps 327: return(0);
1.27 schwarze 328:
1.69 schwarze 329: man->next = MAN_NEXT_SIBLING;
1.10 schwarze 330: return(1);
331: }
332:
333:
1.22 schwarze 334: /*
335: * Free all of the resources held by a node. This does NOT unlink a
336: * node from its context; for that, see man_node_unlink().
337: */
338: static void
1.1 kristaps 339: man_node_free(struct man_node *p)
340: {
341:
342: if (p->string)
343: free(p->string);
344: free(p);
345: }
346:
347:
348: void
1.69 schwarze 349: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 350: {
351:
1.22 schwarze 352: while (p->child)
1.69 schwarze 353: man_node_delete(man, p->child);
1.22 schwarze 354:
1.69 schwarze 355: man_node_unlink(man, p);
1.1 kristaps 356: man_node_free(p);
357: }
358:
1.57 schwarze 359: int
1.69 schwarze 360: man_addeqn(struct man *man, const struct eqn *ep)
1.57 schwarze 361: {
362: struct man_node *n;
363:
1.69 schwarze 364: assert( ! (MAN_HALT & man->flags));
1.57 schwarze 365:
1.69 schwarze 366: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.57 schwarze 367: n->eqn = ep;
368:
1.69 schwarze 369: if ( ! man_node_append(man, n))
1.57 schwarze 370: return(0);
371:
1.69 schwarze 372: man->next = MAN_NEXT_SIBLING;
373: return(man_descope(man, ep->ln, ep->pos));
1.57 schwarze 374: }
1.1 kristaps 375:
1.52 schwarze 376: int
1.69 schwarze 377: man_addspan(struct man *man, const struct tbl_span *sp)
1.52 schwarze 378: {
1.55 schwarze 379: struct man_node *n;
1.52 schwarze 380:
1.69 schwarze 381: assert( ! (MAN_HALT & man->flags));
1.55 schwarze 382:
1.69 schwarze 383: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.55 schwarze 384: n->span = sp;
385:
1.69 schwarze 386: if ( ! man_node_append(man, n))
1.52 schwarze 387: return(0);
1.55 schwarze 388:
1.69 schwarze 389: man->next = MAN_NEXT_SIBLING;
390: return(man_descope(man, sp->line, 0));
1.52 schwarze 391: }
392:
393: static int
1.69 schwarze 394: man_descope(struct man *man, int line, int offs)
1.52 schwarze 395: {
396: /*
397: * Co-ordinate what happens with having a next-line scope open:
398: * first close out the element scope (if applicable), then close
399: * out the block scope (also if applicable).
400: */
401:
1.69 schwarze 402: if (MAN_ELINE & man->flags) {
403: man->flags &= ~MAN_ELINE;
404: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 405: return(0);
406: }
407:
1.69 schwarze 408: if ( ! (MAN_BLINE & man->flags))
1.52 schwarze 409: return(1);
1.69 schwarze 410: man->flags &= ~MAN_BLINE;
1.52 schwarze 411:
1.69 schwarze 412: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 413: return(0);
1.69 schwarze 414: return(man_body_alloc(man, line, offs, man->last->tok));
1.52 schwarze 415: }
416:
1.1 kristaps 417: static int
1.69 schwarze 418: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 419: {
1.27 schwarze 420: int i;
1.26 schwarze 421:
1.10 schwarze 422: /* Literal free-form text whitespace is preserved. */
423:
1.69 schwarze 424: if (MAN_LITERAL & man->flags) {
425: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.10 schwarze 426: return(0);
1.69 schwarze 427: return(man_descope(man, line, offs));
1.10 schwarze 428: }
429:
1.31 schwarze 430: for (i = offs; ' ' == buf[i]; i++)
1.10 schwarze 431: /* Skip leading whitespace. */ ;
1.18 schwarze 432:
1.71 schwarze 433: /*
434: * Blank lines are ignored right after headings
435: * but add a single vertical space elsewhere.
436: */
437:
1.18 schwarze 438: if ('\0' == buf[i]) {
1.27 schwarze 439: /* Allocate a blank entry. */
1.71 schwarze 440: if (MAN_SH != man->last->tok &&
441: MAN_SS != man->last->tok) {
442: if ( ! man_elem_alloc(man, line, offs, MAN_sp))
443: return(0);
444: man->next = MAN_NEXT_SIBLING;
445: }
1.68 schwarze 446: return(1);
1.10 schwarze 447: }
1.1 kristaps 448:
1.27 schwarze 449: /*
450: * Warn if the last un-escaped character is whitespace. Then
451: * strip away the remaining spaces (tabs stay!).
452: */
1.18 schwarze 453:
1.27 schwarze 454: i = (int)strlen(buf);
455: assert(i);
1.18 schwarze 456:
1.27 schwarze 457: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
458: if (i > 1 && '\\' != buf[i - 2])
1.69 schwarze 459: man_pmsg(man, line, i - 1, MANDOCERR_EOLNSPACE);
1.18 schwarze 460:
1.27 schwarze 461: for (--i; i && ' ' == buf[i]; i--)
462: /* Spin back to non-space. */ ;
1.10 schwarze 463:
1.27 schwarze 464: /* Jump ahead of escaped whitespace. */
465: i += '\\' == buf[i] ? 2 : 1;
1.18 schwarze 466:
1.27 schwarze 467: buf[i] = '\0';
1.10 schwarze 468: }
1.9 schwarze 469:
1.69 schwarze 470: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.1 kristaps 471: return(0);
1.28 schwarze 472:
473: /*
474: * End-of-sentence check. If the last character is an unescaped
475: * EOS character, then flag the node as being the end of a
476: * sentence. The front-end will know how to interpret this.
477: */
478:
479: assert(i);
1.72 schwarze 480: if (mandoc_eos(buf, (size_t)i))
1.69 schwarze 481: man->last->flags |= MAN_EOS;
1.10 schwarze 482:
1.69 schwarze 483: return(man_descope(man, line, offs));
1.1 kristaps 484: }
485:
1.53 schwarze 486: static int
1.69 schwarze 487: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 488: {
1.59 schwarze 489: int i, ppos;
1.22 schwarze 490: enum mant tok;
1.10 schwarze 491: char mac[5];
492: struct man_node *n;
1.1 kristaps 493:
1.59 schwarze 494: if ('"' == buf[offs]) {
1.69 schwarze 495: man_pmsg(man, ln, offs, MANDOCERR_BADCOMMENT);
1.59 schwarze 496: return(1);
497: } else if ('\0' == buf[offs])
1.17 schwarze 498: return(1);
1.1 kristaps 499:
1.59 schwarze 500: ppos = offs;
1.1 kristaps 501:
1.23 schwarze 502: /*
1.59 schwarze 503: * Copy the first word into a nil-terminated buffer.
504: * Stop copying when a tab, space, or eoln is encountered.
1.23 schwarze 505: */
1.27 schwarze 506:
1.59 schwarze 507: i = 0;
508: while (i < 4 && '\0' != buf[offs] &&
509: ' ' != buf[offs] && '\t' != buf[offs])
510: mac[i++] = buf[offs++];
1.1 kristaps 511:
1.59 schwarze 512: mac[i] = '\0';
1.1 kristaps 513:
1.59 schwarze 514: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 515:
1.40 schwarze 516: if (MAN_MAX == tok) {
1.69 schwarze 517: mandoc_vmsg(MANDOCERR_MACRO, man->parse, ln,
1.59 schwarze 518: ppos, "%s", buf + ppos - 1);
1.1 kristaps 519: return(1);
520: }
521:
522: /* The macro is sane. Jump to the next word. */
523:
1.59 schwarze 524: while (buf[offs] && ' ' == buf[offs])
525: offs++;
1.18 schwarze 526:
1.27 schwarze 527: /*
528: * Trailing whitespace. Note that tabs are allowed to be passed
529: * into the parser as "text", so we only warn about spaces here.
530: */
1.18 schwarze 531:
1.59 schwarze 532: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.69 schwarze 533: man_pmsg(man, ln, offs - 1, MANDOCERR_EOLNSPACE);
1.1 kristaps 534:
1.21 schwarze 535: /*
1.46 schwarze 536: * Remove prior ELINE macro, as it's being clobbered by a new
1.21 schwarze 537: * macro. Note that NSCOPED macros do not close out ELINE
538: * macros---they don't print text---so we let those slip by.
539: */
540:
1.22 schwarze 541: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.69 schwarze 542: man->flags & MAN_ELINE) {
543: n = man->last;
1.46 schwarze 544: assert(MAN_TEXT != n->type);
1.21 schwarze 545:
1.49 schwarze 546: /* Remove repeated NSCOPED macros causing ELINE. */
547:
1.46 schwarze 548: if (MAN_NSCOPED & man_macros[n->tok].flags)
549: n = n->parent;
1.21 schwarze 550:
1.69 schwarze 551: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 552: n->pos, "%s breaks %s", man_macronames[tok],
553: man_macronames[n->tok]);
1.10 schwarze 554:
1.69 schwarze 555: man_node_delete(man, n);
556: man->flags &= ~MAN_ELINE;
1.63 schwarze 557: }
558:
559: /*
560: * Remove prior BLINE macro that is being clobbered.
561: */
1.69 schwarze 562: if ((man->flags & MAN_BLINE) &&
1.63 schwarze 563: (MAN_BSCOPE & man_macros[tok].flags)) {
1.69 schwarze 564: n = man->last;
1.64 schwarze 565:
566: /* Might be a text node like 8 in
567: * .TP 8
568: * .SH foo
569: */
570: if (MAN_TEXT == n->type)
571: n = n->parent;
1.63 schwarze 572:
573: /* Remove element that didn't end BLINE, if any. */
574: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
575: n = n->parent;
576:
577: assert(MAN_HEAD == n->type);
578: n = n->parent;
579: assert(MAN_BLOCK == n->type);
580: assert(MAN_SCOPED & man_macros[n->tok].flags);
581:
1.69 schwarze 582: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 583: n->pos, "%s breaks %s", man_macronames[tok],
584: man_macronames[n->tok]);
585:
1.69 schwarze 586: man_node_delete(man, n);
587: man->flags &= ~MAN_BLINE;
1.10 schwarze 588: }
589:
1.24 schwarze 590: /*
591: * Save the fact that we're in the next-line for a block. In
592: * this way, embedded roff instructions can "remember" state
593: * when they exit.
594: */
595:
1.69 schwarze 596: if (MAN_BLINE & man->flags)
597: man->flags |= MAN_BPLINE;
1.24 schwarze 598:
599: /* Call to handler... */
1.1 kristaps 600:
1.22 schwarze 601: assert(man_macros[tok].fp);
1.69 schwarze 602: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.1 kristaps 603: goto err;
1.73 ! schwarze 604:
! 605: /* In quick mode (for mandocdb), abort after the NAME section. */
! 606:
! 607: if (man->quick && MAN_SH == tok &&
! 608: strcmp(man->last->prev->child->string, "NAME"))
! 609: return(2);
1.1 kristaps 610:
1.21 schwarze 611: /*
612: * We weren't in a block-line scope when entering the
613: * above-parsed macro, so return.
614: */
615:
1.69 schwarze 616: if ( ! (MAN_BPLINE & man->flags)) {
617: man->flags &= ~MAN_ILINE;
1.9 schwarze 618: return(1);
1.21 schwarze 619: }
1.69 schwarze 620: man->flags &= ~MAN_BPLINE;
1.21 schwarze 621:
622: /*
623: * If we're in a block scope, then allow this macro to slip by
624: * without closing scope around it.
625: */
626:
1.69 schwarze 627: if (MAN_ILINE & man->flags) {
628: man->flags &= ~MAN_ILINE;
1.21 schwarze 629: return(1);
630: }
1.9 schwarze 631:
632: /*
633: * If we've opened a new next-line element scope, then return
634: * now, as the next line will close out the block scope.
635: */
636:
1.69 schwarze 637: if (MAN_ELINE & man->flags)
1.9 schwarze 638: return(1);
639:
640: /* Close out the block scope opened in the prior line. */
1.1 kristaps 641:
1.69 schwarze 642: assert(MAN_BLINE & man->flags);
643: man->flags &= ~MAN_BLINE;
1.1 kristaps 644:
1.69 schwarze 645: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.9 schwarze 646: return(0);
1.69 schwarze 647: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 648:
649: err: /* Error out. */
650:
1.69 schwarze 651: man->flags |= MAN_HALT;
1.1 kristaps 652: return(0);
653: }
1.21 schwarze 654:
1.22 schwarze 655: /*
1.69 schwarze 656: * Unlink a node from its context. If "man" is provided, the last parse
1.22 schwarze 657: * point will also be adjusted accordingly.
658: */
659: static void
1.69 schwarze 660: man_node_unlink(struct man *man, struct man_node *n)
1.21 schwarze 661: {
662:
1.22 schwarze 663: /* Adjust siblings. */
664:
665: if (n->prev)
1.21 schwarze 666: n->prev->next = n->next;
1.22 schwarze 667: if (n->next)
668: n->next->prev = n->prev;
669:
670: /* Adjust parent. */
671:
672: if (n->parent) {
673: n->parent->nchild--;
674: if (n->parent->child == n)
675: n->parent->child = n->prev ? n->prev : n->next;
676: }
677:
678: /* Adjust parse point, if applicable. */
679:
1.69 schwarze 680: if (man && man->last == n) {
1.22 schwarze 681: /*XXX: this can occur when bailing from validation. */
682: /*assert(NULL == n->next);*/
683: if (n->prev) {
1.69 schwarze 684: man->last = n->prev;
685: man->next = MAN_NEXT_SIBLING;
1.22 schwarze 686: } else {
1.69 schwarze 687: man->last = n->parent;
688: man->next = MAN_NEXT_CHILD;
1.21 schwarze 689: }
690: }
691:
1.69 schwarze 692: if (man && man->first == n)
693: man->first = NULL;
1.62 schwarze 694: }
695:
696: const struct mparse *
1.69 schwarze 697: man_mparse(const struct man *man)
1.62 schwarze 698: {
699:
1.69 schwarze 700: assert(man && man->parse);
701: return(man->parse);
1.4 schwarze 702: }
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