Annotation of mandoc/man.c, Revision 1.137
1.137 ! schwarze 1: /* $Id: man.c,v 1.136 2014/08/01 17:27:44 schwarze Exp $ */
1.1 kristaps 2: /*
1.102 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.123 schwarze 4: * Copyright (c) 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
1.124 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
1.18 kristaps 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: *
1.18 kristaps 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: */
1.47 kristaps 19: #ifdef HAVE_CONFIG_H
20: #include "config.h"
21: #endif
22:
1.41 kristaps 23: #include <sys/types.h>
24:
1.1 kristaps 25: #include <assert.h>
1.126 schwarze 26: #include <ctype.h>
1.1 kristaps 27: #include <stdarg.h>
28: #include <stdlib.h>
29: #include <stdio.h>
30: #include <string.h>
31:
1.105 kristaps 32: #include "man.h"
1.74 kristaps 33: #include "mandoc.h"
1.125 schwarze 34: #include "mandoc_aux.h"
1.1 kristaps 35: #include "libman.h"
1.45 kristaps 36: #include "libmandoc.h"
1.1 kristaps 37:
1.129 schwarze 38: const char *const __man_macronames[MAN_MAX] = {
1.21 kristaps 39: "br", "TH", "SH", "SS",
1.129 schwarze 40: "TP", "LP", "PP", "P",
1.1 kristaps 41: "IP", "HP", "SM", "SB",
42: "BI", "IB", "BR", "RB",
1.11 kristaps 43: "R", "B", "I", "IR",
1.92 kristaps 44: "RI", "na", "sp", "nf",
45: "fi", "RE", "RS", "DT",
46: "UC", "PD", "AT", "in",
1.120 schwarze 47: "ft", "OP", "EX", "EE",
1.128 schwarze 48: "UR", "UE", "ll"
1.1 kristaps 49: };
50:
51: const char * const *man_macronames = __man_macronames;
52:
1.129 schwarze 53: static struct man_node *man_node_alloc(struct man *, int, int,
1.53 kristaps 54: enum man_type, enum mant);
1.129 schwarze 55: static int man_node_append(struct man *,
1.1 kristaps 56: struct man_node *);
1.54 kristaps 57: static void man_node_free(struct man_node *);
1.129 schwarze 58: static void man_node_unlink(struct man *,
1.54 kristaps 59: struct man_node *);
1.72 kristaps 60: static int man_ptext(struct man *, int, char *, int);
1.79 kristaps 61: static int man_pmacro(struct man *, int, char *, int);
1.2 kristaps 62: static void man_free1(struct man *);
1.45 kristaps 63: static void man_alloc1(struct man *);
1.94 kristaps 64: static int man_descope(struct man *, int, int);
1.1 kristaps 65:
66:
67: const struct man_node *
1.119 schwarze 68: man_node(const struct man *man)
1.1 kristaps 69: {
70:
1.119 schwarze 71: return(man->first);
1.1 kristaps 72: }
73:
74: const struct man_meta *
1.119 schwarze 75: man_meta(const struct man *man)
1.1 kristaps 76: {
77:
1.119 schwarze 78: return(&man->meta);
1.1 kristaps 79: }
80:
1.45 kristaps 81: void
1.1 kristaps 82: man_reset(struct man *man)
83: {
84:
1.2 kristaps 85: man_free1(man);
1.45 kristaps 86: man_alloc1(man);
1.1 kristaps 87: }
88:
89: void
90: man_free(struct man *man)
91: {
92:
1.2 kristaps 93: man_free1(man);
1.1 kristaps 94: free(man);
95: }
96:
97: struct man *
1.123 schwarze 98: man_alloc(struct roff *roff, struct mparse *parse, int quick)
1.1 kristaps 99: {
100: struct man *p;
101:
1.45 kristaps 102: p = mandoc_calloc(1, sizeof(struct man));
1.2 kristaps 103:
1.40 kristaps 104: man_hash_init();
1.104 kristaps 105: p->parse = parse;
1.123 schwarze 106: p->quick = quick;
1.108 kristaps 107: p->roff = roff;
1.45 kristaps 108:
109: man_alloc1(p);
1.1 kristaps 110: return(p);
111: }
112:
113: int
1.119 schwarze 114: man_endparse(struct man *man)
1.1 kristaps 115: {
116:
1.135 schwarze 117: return(man_macroend(man));
1.1 kristaps 118: }
119:
120: int
1.119 schwarze 121: man_parseln(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 122: {
123:
1.119 schwarze 124: man->flags |= MAN_NEWLINE;
1.97 kristaps 125:
1.119 schwarze 126: return (roff_getcontrol(man->roff, buf, &offs) ?
1.129 schwarze 127: man_pmacro(man, ln, buf, offs) :
128: man_ptext(man, ln, buf, offs));
1.1 kristaps 129: }
130:
1.2 kristaps 131: static void
132: man_free1(struct man *man)
133: {
134:
135: if (man->first)
1.54 kristaps 136: man_node_delete(man, man->first);
1.2 kristaps 137: if (man->meta.title)
138: free(man->meta.title);
1.6 kristaps 139: if (man->meta.source)
140: free(man->meta.source);
1.102 schwarze 141: if (man->meta.date)
142: free(man->meta.date);
1.2 kristaps 143: if (man->meta.vol)
144: free(man->meta.vol);
1.68 kristaps 145: if (man->meta.msec)
146: free(man->meta.msec);
1.2 kristaps 147: }
148:
1.45 kristaps 149: static void
1.119 schwarze 150: man_alloc1(struct man *man)
1.2 kristaps 151: {
152:
1.119 schwarze 153: memset(&man->meta, 0, sizeof(struct man_meta));
154: man->flags = 0;
155: man->last = mandoc_calloc(1, sizeof(struct man_node));
156: man->first = man->last;
157: man->last->type = MAN_ROOT;
158: man->last->tok = MAN_MAX;
159: man->next = MAN_NEXT_CHILD;
1.2 kristaps 160: }
161:
162:
1.1 kristaps 163: static int
164: man_node_append(struct man *man, struct man_node *p)
165: {
166:
167: assert(man->last);
168: assert(man->first);
169: assert(MAN_ROOT != p->type);
170:
171: switch (man->next) {
1.129 schwarze 172: case MAN_NEXT_SIBLING:
1.1 kristaps 173: man->last->next = p;
174: p->prev = man->last;
175: p->parent = man->last->parent;
176: break;
1.129 schwarze 177: case MAN_NEXT_CHILD:
1.1 kristaps 178: man->last->child = p;
179: p->parent = man->last;
180: break;
181: default:
182: abort();
183: /* NOTREACHED */
184: }
1.129 schwarze 185:
1.54 kristaps 186: assert(p->parent);
1.22 kristaps 187: p->parent->nchild++;
1.1 kristaps 188:
1.29 kristaps 189: switch (p->type) {
1.137 ! schwarze 190: case MAN_BLOCK:
! 191: if (p->tok == MAN_SH || p->tok == MAN_SS)
! 192: man->flags &= ~MAN_LITERAL;
! 193: break;
1.129 schwarze 194: case MAN_HEAD:
1.29 kristaps 195: assert(MAN_BLOCK == p->parent->type);
196: p->parent->head = p;
197: break;
1.129 schwarze 198: case MAN_TAIL:
1.106 kristaps 199: assert(MAN_BLOCK == p->parent->type);
200: p->parent->tail = p;
201: break;
1.129 schwarze 202: case MAN_BODY:
1.29 kristaps 203: assert(MAN_BLOCK == p->parent->type);
204: p->parent->body = p;
205: break;
206: default:
207: break;
208: }
209:
1.2 kristaps 210: man->last = p;
211:
1.1 kristaps 212: switch (p->type) {
1.129 schwarze 213: case MAN_TBL:
1.94 kristaps 214: /* FALLTHROUGH */
1.129 schwarze 215: case MAN_TEXT:
1.2 kristaps 216: if ( ! man_valid_post(man))
217: return(0);
1.1 kristaps 218: break;
219: default:
220: break;
221: }
222:
223: return(1);
224: }
225:
226: static struct man_node *
1.129 schwarze 227: man_node_alloc(struct man *man, int line, int pos,
1.97 kristaps 228: enum man_type type, enum mant tok)
1.1 kristaps 229: {
230: struct man_node *p;
231:
1.45 kristaps 232: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 233: p->line = line;
234: p->pos = pos;
235: p->type = type;
1.16 kristaps 236: p->tok = tok;
1.97 kristaps 237:
1.119 schwarze 238: if (MAN_NEWLINE & man->flags)
1.97 kristaps 239: p->flags |= MAN_LINE;
1.119 schwarze 240: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 241: return(p);
242: }
243:
244: int
1.119 schwarze 245: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 246: {
247: struct man_node *p;
248:
1.119 schwarze 249: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
250: if ( ! man_node_append(man, p))
1.106 kristaps 251: return(0);
1.119 schwarze 252: man->next = MAN_NEXT_CHILD;
1.106 kristaps 253: return(1);
254: }
255:
256: int
1.119 schwarze 257: man_tail_alloc(struct man *man, int line, int pos, enum mant tok)
1.106 kristaps 258: {
259: struct man_node *p;
260:
1.119 schwarze 261: p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
262: if ( ! man_node_append(man, p))
1.30 kristaps 263: return(0);
1.119 schwarze 264: man->next = MAN_NEXT_CHILD;
1.30 kristaps 265: return(1);
1.1 kristaps 266: }
267:
268: int
1.119 schwarze 269: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 270: {
271: struct man_node *p;
272:
1.119 schwarze 273: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
274: if ( ! man_node_append(man, p))
1.29 kristaps 275: return(0);
1.119 schwarze 276: man->next = MAN_NEXT_CHILD;
1.29 kristaps 277: return(1);
278: }
279:
280: int
1.119 schwarze 281: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 282: {
283: struct man_node *p;
284:
1.119 schwarze 285: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
286: if ( ! man_node_append(man, p))
1.29 kristaps 287: return(0);
1.119 schwarze 288: man->next = MAN_NEXT_CHILD;
1.29 kristaps 289: return(1);
290: }
291:
292: int
1.119 schwarze 293: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 294: {
295: struct man_node *p;
296:
1.119 schwarze 297: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
298: if ( ! man_node_append(man, p))
1.29 kristaps 299: return(0);
1.119 schwarze 300: man->next = MAN_NEXT_CHILD;
1.29 kristaps 301: return(1);
302: }
303:
1.61 kristaps 304: int
1.119 schwarze 305: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 306: {
1.31 kristaps 307: struct man_node *n;
1.1 kristaps 308:
1.119 schwarze 309: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
310: n->string = roff_strdup(man->roff, word);
1.31 kristaps 311:
1.119 schwarze 312: if ( ! man_node_append(man, n))
1.30 kristaps 313: return(0);
1.61 kristaps 314:
1.119 schwarze 315: man->next = MAN_NEXT_SIBLING;
1.30 kristaps 316: return(1);
1.1 kristaps 317: }
318:
1.54 kristaps 319: /*
320: * Free all of the resources held by a node. This does NOT unlink a
321: * node from its context; for that, see man_node_unlink().
322: */
323: static void
1.1 kristaps 324: man_node_free(struct man_node *p)
325: {
326:
327: if (p->string)
328: free(p->string);
329: free(p);
330: }
331:
332: void
1.119 schwarze 333: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 334: {
335:
1.54 kristaps 336: while (p->child)
1.119 schwarze 337: man_node_delete(man, p->child);
1.54 kristaps 338:
1.119 schwarze 339: man_node_unlink(man, p);
1.1 kristaps 340: man_node_free(p);
341: }
342:
1.101 kristaps 343: int
1.119 schwarze 344: man_addeqn(struct man *man, const struct eqn *ep)
1.101 kristaps 345: {
346: struct man_node *n;
347:
1.119 schwarze 348: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.101 kristaps 349: n->eqn = ep;
350:
1.119 schwarze 351: if ( ! man_node_append(man, n))
1.101 kristaps 352: return(0);
353:
1.119 schwarze 354: man->next = MAN_NEXT_SIBLING;
355: return(man_descope(man, ep->ln, ep->pos));
1.101 kristaps 356: }
1.1 kristaps 357:
1.94 kristaps 358: int
1.119 schwarze 359: man_addspan(struct man *man, const struct tbl_span *sp)
1.94 kristaps 360: {
1.100 kristaps 361: struct man_node *n;
1.94 kristaps 362:
1.119 schwarze 363: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.100 kristaps 364: n->span = sp;
365:
1.119 schwarze 366: if ( ! man_node_append(man, n))
1.94 kristaps 367: return(0);
1.100 kristaps 368:
1.119 schwarze 369: man->next = MAN_NEXT_SIBLING;
370: return(man_descope(man, sp->line, 0));
1.94 kristaps 371: }
372:
373: static int
1.119 schwarze 374: man_descope(struct man *man, int line, int offs)
1.94 kristaps 375: {
376: /*
377: * Co-ordinate what happens with having a next-line scope open:
378: * first close out the element scope (if applicable), then close
379: * out the block scope (also if applicable).
380: */
381:
1.119 schwarze 382: if (MAN_ELINE & man->flags) {
383: man->flags &= ~MAN_ELINE;
1.132 schwarze 384: if ( ! man_unscope(man, man->last->parent))
1.94 kristaps 385: return(0);
386: }
387:
1.119 schwarze 388: if ( ! (MAN_BLINE & man->flags))
1.94 kristaps 389: return(1);
1.119 schwarze 390: man->flags &= ~MAN_BLINE;
1.94 kristaps 391:
1.132 schwarze 392: if ( ! man_unscope(man, man->last->parent))
1.94 kristaps 393: return(0);
1.119 schwarze 394: return(man_body_alloc(man, line, offs, man->last->tok));
1.94 kristaps 395: }
396:
1.1 kristaps 397: static int
1.119 schwarze 398: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 399: {
1.61 kristaps 400: int i;
1.60 kristaps 401:
1.35 kristaps 402: /* Literal free-form text whitespace is preserved. */
403:
1.119 schwarze 404: if (MAN_LITERAL & man->flags) {
405: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.35 kristaps 406: return(0);
1.119 schwarze 407: return(man_descope(man, line, offs));
1.35 kristaps 408: }
409:
1.72 kristaps 410: for (i = offs; ' ' == buf[i]; i++)
1.31 kristaps 411: /* Skip leading whitespace. */ ;
1.48 kristaps 412:
1.121 schwarze 413: /*
414: * Blank lines are ignored right after headings
415: * but add a single vertical space elsewhere.
416: */
417:
1.49 kristaps 418: if ('\0' == buf[i]) {
1.61 kristaps 419: /* Allocate a blank entry. */
1.121 schwarze 420: if (MAN_SH != man->last->tok &&
421: MAN_SS != man->last->tok) {
422: if ( ! man_elem_alloc(man, line, offs, MAN_sp))
423: return(0);
424: man->next = MAN_NEXT_SIBLING;
425: }
1.118 schwarze 426: return(1);
1.31 kristaps 427: }
428:
1.129 schwarze 429: /*
1.63 kristaps 430: * Warn if the last un-escaped character is whitespace. Then
1.129 schwarze 431: * strip away the remaining spaces (tabs stay!).
1.63 kristaps 432: */
1.29 kristaps 433:
1.61 kristaps 434: i = (int)strlen(buf);
435: assert(i);
1.49 kristaps 436:
1.63 kristaps 437: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
1.64 kristaps 438: if (i > 1 && '\\' != buf[i - 2])
1.131 schwarze 439: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
440: line, i - 1, NULL);
1.63 kristaps 441:
442: for (--i; i && ' ' == buf[i]; i--)
443: /* Spin back to non-space. */ ;
444:
445: /* Jump ahead of escaped whitespace. */
446: i += '\\' == buf[i] ? 2 : 1;
447:
448: buf[i] = '\0';
449: }
1.49 kristaps 450:
1.119 schwarze 451: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.1 kristaps 452: return(0);
1.65 kristaps 453:
454: /*
455: * End-of-sentence check. If the last character is an unescaped
456: * EOS character, then flag the node as being the end of a
457: * sentence. The front-end will know how to interpret this.
458: */
1.67 kristaps 459:
1.65 kristaps 460: assert(i);
1.122 schwarze 461: if (mandoc_eos(buf, (size_t)i))
1.119 schwarze 462: man->last->flags |= MAN_EOS;
1.31 kristaps 463:
1.119 schwarze 464: return(man_descope(man, line, offs));
1.1 kristaps 465: }
466:
1.96 kristaps 467: static int
1.119 schwarze 468: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 469: {
1.34 kristaps 470: char mac[5];
471: struct man_node *n;
1.134 schwarze 472: enum mant tok;
473: int i, ppos;
474: int bline;
1.1 kristaps 475:
1.107 kristaps 476: if ('"' == buf[offs]) {
1.131 schwarze 477: mandoc_msg(MANDOCERR_COMMENT_BAD, man->parse,
478: ln, offs, NULL);
1.107 kristaps 479: return(1);
480: } else if ('\0' == buf[offs])
1.46 kristaps 481: return(1);
1.1 kristaps 482:
1.107 kristaps 483: ppos = offs;
1.9 kristaps 484:
1.56 kristaps 485: /*
1.107 kristaps 486: * Copy the first word into a nil-terminated buffer.
487: * Stop copying when a tab, space, or eoln is encountered.
1.56 kristaps 488: */
1.62 kristaps 489:
1.107 kristaps 490: i = 0;
1.129 schwarze 491: while (i < 4 && '\0' != buf[offs] && ' ' != buf[offs] &&
492: '\t' != buf[offs])
1.107 kristaps 493: mac[i++] = buf[offs++];
1.10 kristaps 494:
1.107 kristaps 495: mac[i] = '\0';
1.1 kristaps 496:
1.107 kristaps 497: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 498:
1.87 schwarze 499: if (MAN_MAX == tok) {
1.136 schwarze 500: mandoc_msg(MANDOCERR_MACRO, man->parse,
501: ln, ppos, buf + ppos - 1);
1.12 kristaps 502: return(1);
1.1 kristaps 503: }
504:
505: /* The macro is sane. Jump to the next word. */
506:
1.107 kristaps 507: while (buf[offs] && ' ' == buf[offs])
508: offs++;
1.1 kristaps 509:
1.129 schwarze 510: /*
1.62 kristaps 511: * Trailing whitespace. Note that tabs are allowed to be passed
512: * into the parser as "text", so we only warn about spaces here.
513: */
1.48 kristaps 514:
1.107 kristaps 515: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.131 schwarze 516: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
517: ln, offs - 1, NULL);
1.48 kristaps 518:
1.129 schwarze 519: /*
1.90 kristaps 520: * Remove prior ELINE macro, as it's being clobbered by a new
1.51 kristaps 521: * macro. Note that NSCOPED macros do not close out ELINE
522: * macros---they don't print text---so we let those slip by.
1.50 kristaps 523: */
1.34 kristaps 524:
1.53 kristaps 525: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.119 schwarze 526: man->flags & MAN_ELINE) {
527: n = man->last;
1.90 kristaps 528: assert(MAN_TEXT != n->type);
1.51 kristaps 529:
1.90 kristaps 530: /* Remove repeated NSCOPED macros causing ELINE. */
1.51 kristaps 531:
1.90 kristaps 532: if (MAN_NSCOPED & man_macros[n->tok].flags)
533: n = n->parent;
1.51 kristaps 534:
1.133 schwarze 535: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.113 schwarze 536: n->pos, "%s breaks %s", man_macronames[tok],
537: man_macronames[n->tok]);
1.34 kristaps 538:
1.119 schwarze 539: man_node_delete(man, n);
540: man->flags &= ~MAN_ELINE;
1.113 schwarze 541: }
542:
543: /*
544: * Remove prior BLINE macro that is being clobbered.
545: */
1.119 schwarze 546: if ((man->flags & MAN_BLINE) &&
1.113 schwarze 547: (MAN_BSCOPE & man_macros[tok].flags)) {
1.119 schwarze 548: n = man->last;
1.114 joerg 549:
550: /* Might be a text node like 8 in
551: * .TP 8
552: * .SH foo
553: */
554: if (MAN_TEXT == n->type)
555: n = n->parent;
1.113 schwarze 556:
557: /* Remove element that didn't end BLINE, if any. */
558: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
559: n = n->parent;
560:
561: assert(MAN_HEAD == n->type);
562: n = n->parent;
563: assert(MAN_BLOCK == n->type);
564: assert(MAN_SCOPED & man_macros[n->tok].flags);
565:
1.133 schwarze 566: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.113 schwarze 567: n->pos, "%s breaks %s", man_macronames[tok],
568: man_macronames[n->tok]);
569:
1.119 schwarze 570: man_node_delete(man, n);
571: man->flags &= ~MAN_BLINE;
1.34 kristaps 572: }
573:
1.134 schwarze 574: /* Remember whether we are in next-line scope for a block head. */
1.59 kristaps 575:
1.134 schwarze 576: bline = man->flags & MAN_BLINE;
1.59 kristaps 577:
578: /* Call to handler... */
1.1 kristaps 579:
1.53 kristaps 580: assert(man_macros[tok].fp);
1.119 schwarze 581: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.135 schwarze 582: return(0);
1.123 schwarze 583:
584: /* In quick mode (for mandocdb), abort after the NAME section. */
585:
1.130 schwarze 586: if (man->quick && MAN_SH == tok) {
587: n = man->last;
588: if (MAN_BODY == n->type &&
589: strcmp(n->prev->child->string, "NAME"))
590: return(2);
591: }
1.1 kristaps 592:
1.129 schwarze 593: /*
1.135 schwarze 594: * If we are in a next-line scope for a block head,
595: * close it out now and switch to the body,
596: * unless the next-line scope is allowed to continue.
1.29 kristaps 597: */
598:
1.135 schwarze 599: if ( ! bline || man->flags & MAN_ELINE ||
600: man_macros[tok].flags & MAN_NSCOPED)
1.29 kristaps 601: return(1);
602:
1.119 schwarze 603: assert(MAN_BLINE & man->flags);
604: man->flags &= ~MAN_BLINE;
1.11 kristaps 605:
1.132 schwarze 606: if ( ! man_unscope(man, man->last->parent))
1.29 kristaps 607: return(0);
1.119 schwarze 608: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 609: }
1.51 kristaps 610:
1.54 kristaps 611: /*
1.119 schwarze 612: * Unlink a node from its context. If "man" is provided, the last parse
1.54 kristaps 613: * point will also be adjusted accordingly.
614: */
615: static void
1.119 schwarze 616: man_node_unlink(struct man *man, struct man_node *n)
1.51 kristaps 617: {
618:
1.54 kristaps 619: /* Adjust siblings. */
620:
621: if (n->prev)
1.51 kristaps 622: n->prev->next = n->next;
1.54 kristaps 623: if (n->next)
624: n->next->prev = n->prev;
625:
626: /* Adjust parent. */
627:
628: if (n->parent) {
629: n->parent->nchild--;
630: if (n->parent->child == n)
631: n->parent->child = n->prev ? n->prev : n->next;
632: }
633:
634: /* Adjust parse point, if applicable. */
635:
1.119 schwarze 636: if (man && man->last == n) {
1.54 kristaps 637: /*XXX: this can occur when bailing from validation. */
638: /*assert(NULL == n->next);*/
639: if (n->prev) {
1.119 schwarze 640: man->last = n->prev;
641: man->next = MAN_NEXT_SIBLING;
1.54 kristaps 642: } else {
1.119 schwarze 643: man->last = n->parent;
644: man->next = MAN_NEXT_CHILD;
1.51 kristaps 645: }
646: }
647:
1.119 schwarze 648: if (man && man->first == n)
649: man->first = NULL;
1.112 kristaps 650: }
651:
652: const struct mparse *
1.119 schwarze 653: man_mparse(const struct man *man)
1.112 kristaps 654: {
655:
1.119 schwarze 656: assert(man && man->parse);
657: return(man->parse);
1.126 schwarze 658: }
659:
660: void
661: man_deroff(char **dest, const struct man_node *n)
662: {
663: char *cp;
664: size_t sz;
665:
666: if (MAN_TEXT != n->type) {
667: for (n = n->child; n; n = n->next)
668: man_deroff(dest, n);
669: return;
670: }
671:
1.127 schwarze 672: /* Skip leading whitespace and escape sequences. */
1.126 schwarze 673:
1.127 schwarze 674: cp = n->string;
675: while ('\0' != *cp) {
676: if ('\\' == *cp) {
677: cp++;
678: mandoc_escape((const char **)&cp, NULL, NULL);
679: } else if (isspace((unsigned char)*cp))
680: cp++;
681: else
1.126 schwarze 682: break;
1.127 schwarze 683: }
1.126 schwarze 684:
685: /* Skip trailing whitespace. */
686:
687: for (sz = strlen(cp); sz; sz--)
688: if (0 == isspace((unsigned char)cp[sz-1]))
689: break;
690:
691: /* Skip empty strings. */
692:
693: if (0 == sz)
694: return;
695:
696: if (NULL == *dest) {
697: *dest = mandoc_strndup(cp, sz);
698: return;
699: }
700:
701: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
702: free(*dest);
703: *dest = cp;
1.23 kristaps 704: }
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