Annotation of mandoc/man.c, Revision 1.141
1.141 ! schwarze 1: /* $Id: man.c,v 1.140 2014/10/20 02:33:06 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: #include "config.h"
20:
1.41 kristaps 21: #include <sys/types.h>
22:
1.1 kristaps 23: #include <assert.h>
1.126 schwarze 24: #include <ctype.h>
1.1 kristaps 25: #include <stdarg.h>
26: #include <stdlib.h>
27: #include <stdio.h>
28: #include <string.h>
29:
1.105 kristaps 30: #include "man.h"
1.74 kristaps 31: #include "mandoc.h"
1.125 schwarze 32: #include "mandoc_aux.h"
1.1 kristaps 33: #include "libman.h"
1.45 kristaps 34: #include "libmandoc.h"
1.1 kristaps 35:
1.129 schwarze 36: const char *const __man_macronames[MAN_MAX] = {
1.21 kristaps 37: "br", "TH", "SH", "SS",
1.129 schwarze 38: "TP", "LP", "PP", "P",
1.1 kristaps 39: "IP", "HP", "SM", "SB",
40: "BI", "IB", "BR", "RB",
1.11 kristaps 41: "R", "B", "I", "IR",
1.92 kristaps 42: "RI", "na", "sp", "nf",
43: "fi", "RE", "RS", "DT",
44: "UC", "PD", "AT", "in",
1.120 schwarze 45: "ft", "OP", "EX", "EE",
1.128 schwarze 46: "UR", "UE", "ll"
1.1 kristaps 47: };
48:
49: const char * const *man_macronames = __man_macronames;
50:
1.129 schwarze 51: static struct man_node *man_node_alloc(struct man *, int, int,
1.53 kristaps 52: enum man_type, enum mant);
1.129 schwarze 53: static int man_node_append(struct man *,
1.1 kristaps 54: struct man_node *);
1.54 kristaps 55: static void man_node_free(struct man_node *);
1.129 schwarze 56: static void man_node_unlink(struct man *,
1.54 kristaps 57: struct man_node *);
1.72 kristaps 58: static int man_ptext(struct man *, int, char *, int);
1.79 kristaps 59: static int man_pmacro(struct man *, int, char *, int);
1.2 kristaps 60: static void man_free1(struct man *);
1.45 kristaps 61: static void man_alloc1(struct man *);
1.94 kristaps 62: static int man_descope(struct man *, int, int);
1.1 kristaps 63:
64:
65: const struct man_node *
1.119 schwarze 66: man_node(const struct man *man)
1.1 kristaps 67: {
68:
1.119 schwarze 69: return(man->first);
1.1 kristaps 70: }
71:
72: const struct man_meta *
1.119 schwarze 73: man_meta(const struct man *man)
1.1 kristaps 74: {
75:
1.119 schwarze 76: return(&man->meta);
1.1 kristaps 77: }
78:
1.45 kristaps 79: void
1.1 kristaps 80: man_reset(struct man *man)
81: {
82:
1.2 kristaps 83: man_free1(man);
1.45 kristaps 84: man_alloc1(man);
1.1 kristaps 85: }
86:
87: void
88: man_free(struct man *man)
89: {
90:
1.2 kristaps 91: man_free1(man);
1.1 kristaps 92: free(man);
93: }
94:
95: struct man *
1.123 schwarze 96: man_alloc(struct roff *roff, struct mparse *parse, int quick)
1.1 kristaps 97: {
98: struct man *p;
99:
1.45 kristaps 100: p = mandoc_calloc(1, sizeof(struct man));
1.2 kristaps 101:
1.40 kristaps 102: man_hash_init();
1.104 kristaps 103: p->parse = parse;
1.123 schwarze 104: p->quick = quick;
1.108 kristaps 105: p->roff = roff;
1.45 kristaps 106:
107: man_alloc1(p);
1.1 kristaps 108: return(p);
109: }
110:
111: int
1.119 schwarze 112: man_endparse(struct man *man)
1.1 kristaps 113: {
114:
1.135 schwarze 115: return(man_macroend(man));
1.1 kristaps 116: }
117:
118: int
1.119 schwarze 119: man_parseln(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 120: {
121:
1.141 ! schwarze 122: if (man->last->type != MAN_EQN || ln > man->last->line)
! 123: man->flags |= MAN_NEWLINE;
1.97 kristaps 124:
1.119 schwarze 125: return (roff_getcontrol(man->roff, buf, &offs) ?
1.129 schwarze 126: man_pmacro(man, ln, buf, offs) :
127: man_ptext(man, ln, buf, offs));
1.1 kristaps 128: }
129:
1.2 kristaps 130: static void
131: man_free1(struct man *man)
132: {
133:
134: if (man->first)
1.54 kristaps 135: man_node_delete(man, man->first);
1.2 kristaps 136: if (man->meta.title)
137: free(man->meta.title);
1.6 kristaps 138: if (man->meta.source)
139: free(man->meta.source);
1.102 schwarze 140: if (man->meta.date)
141: free(man->meta.date);
1.2 kristaps 142: if (man->meta.vol)
143: free(man->meta.vol);
1.68 kristaps 144: if (man->meta.msec)
145: free(man->meta.msec);
1.2 kristaps 146: }
147:
1.45 kristaps 148: static void
1.119 schwarze 149: man_alloc1(struct man *man)
1.2 kristaps 150: {
151:
1.119 schwarze 152: memset(&man->meta, 0, sizeof(struct man_meta));
153: man->flags = 0;
154: man->last = mandoc_calloc(1, sizeof(struct man_node));
155: man->first = man->last;
156: man->last->type = MAN_ROOT;
157: man->last->tok = MAN_MAX;
158: man->next = MAN_NEXT_CHILD;
1.2 kristaps 159: }
160:
161:
1.1 kristaps 162: static int
163: man_node_append(struct man *man, struct man_node *p)
164: {
165:
166: assert(man->last);
167: assert(man->first);
168: assert(MAN_ROOT != p->type);
169:
170: switch (man->next) {
1.129 schwarze 171: case MAN_NEXT_SIBLING:
1.1 kristaps 172: man->last->next = p;
173: p->prev = man->last;
174: p->parent = man->last->parent;
175: break;
1.129 schwarze 176: case MAN_NEXT_CHILD:
1.1 kristaps 177: man->last->child = p;
178: p->parent = man->last;
179: break;
180: default:
181: abort();
182: /* NOTREACHED */
183: }
1.129 schwarze 184:
1.54 kristaps 185: assert(p->parent);
1.22 kristaps 186: p->parent->nchild++;
1.1 kristaps 187:
1.29 kristaps 188: switch (p->type) {
1.137 schwarze 189: case MAN_BLOCK:
190: if (p->tok == MAN_SH || p->tok == MAN_SS)
191: man->flags &= ~MAN_LITERAL;
192: break;
1.129 schwarze 193: case MAN_HEAD:
1.29 kristaps 194: assert(MAN_BLOCK == p->parent->type);
195: p->parent->head = p;
196: break;
1.129 schwarze 197: case MAN_TAIL:
1.106 kristaps 198: assert(MAN_BLOCK == p->parent->type);
199: p->parent->tail = p;
200: break;
1.129 schwarze 201: case MAN_BODY:
1.29 kristaps 202: assert(MAN_BLOCK == p->parent->type);
203: p->parent->body = p;
204: break;
205: default:
206: break;
207: }
208:
1.2 kristaps 209: man->last = p;
210:
1.1 kristaps 211: switch (p->type) {
1.129 schwarze 212: case MAN_TBL:
1.94 kristaps 213: /* FALLTHROUGH */
1.129 schwarze 214: case MAN_TEXT:
1.2 kristaps 215: if ( ! man_valid_post(man))
216: return(0);
1.1 kristaps 217: break;
218: default:
219: break;
220: }
221:
222: return(1);
223: }
224:
225: static struct man_node *
1.129 schwarze 226: man_node_alloc(struct man *man, int line, int pos,
1.97 kristaps 227: enum man_type type, enum mant tok)
1.1 kristaps 228: {
229: struct man_node *p;
230:
1.45 kristaps 231: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 232: p->line = line;
233: p->pos = pos;
234: p->type = type;
1.16 kristaps 235: p->tok = tok;
1.97 kristaps 236:
1.119 schwarze 237: if (MAN_NEWLINE & man->flags)
1.97 kristaps 238: p->flags |= MAN_LINE;
1.119 schwarze 239: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 240: return(p);
241: }
242:
243: int
1.119 schwarze 244: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 245: {
246: struct man_node *p;
247:
1.119 schwarze 248: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
249: if ( ! man_node_append(man, p))
1.106 kristaps 250: return(0);
1.119 schwarze 251: man->next = MAN_NEXT_CHILD;
1.106 kristaps 252: return(1);
253: }
254:
255: int
1.119 schwarze 256: man_tail_alloc(struct man *man, int line, int pos, enum mant tok)
1.106 kristaps 257: {
258: struct man_node *p;
259:
1.119 schwarze 260: p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
261: if ( ! man_node_append(man, p))
1.30 kristaps 262: return(0);
1.119 schwarze 263: man->next = MAN_NEXT_CHILD;
1.30 kristaps 264: return(1);
1.1 kristaps 265: }
266:
267: int
1.119 schwarze 268: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 269: {
270: struct man_node *p;
271:
1.119 schwarze 272: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
273: if ( ! man_node_append(man, p))
1.29 kristaps 274: return(0);
1.119 schwarze 275: man->next = MAN_NEXT_CHILD;
1.29 kristaps 276: return(1);
277: }
278:
279: int
1.119 schwarze 280: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 281: {
282: struct man_node *p;
283:
1.119 schwarze 284: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
285: if ( ! man_node_append(man, p))
1.29 kristaps 286: return(0);
1.119 schwarze 287: man->next = MAN_NEXT_CHILD;
1.29 kristaps 288: return(1);
289: }
290:
291: int
1.119 schwarze 292: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 293: {
294: struct man_node *p;
295:
1.119 schwarze 296: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
297: if ( ! man_node_append(man, p))
1.29 kristaps 298: return(0);
1.119 schwarze 299: man->next = MAN_NEXT_CHILD;
1.29 kristaps 300: return(1);
301: }
302:
1.61 kristaps 303: int
1.119 schwarze 304: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 305: {
1.31 kristaps 306: struct man_node *n;
1.1 kristaps 307:
1.119 schwarze 308: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
309: n->string = roff_strdup(man->roff, word);
1.31 kristaps 310:
1.119 schwarze 311: if ( ! man_node_append(man, n))
1.30 kristaps 312: return(0);
1.61 kristaps 313:
1.119 schwarze 314: man->next = MAN_NEXT_SIBLING;
1.30 kristaps 315: return(1);
1.1 kristaps 316: }
317:
1.54 kristaps 318: /*
319: * Free all of the resources held by a node. This does NOT unlink a
320: * node from its context; for that, see man_node_unlink().
321: */
322: static void
1.1 kristaps 323: man_node_free(struct man_node *p)
324: {
325:
326: if (p->string)
327: free(p->string);
328: free(p);
329: }
330:
331: void
1.119 schwarze 332: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 333: {
334:
1.54 kristaps 335: while (p->child)
1.119 schwarze 336: man_node_delete(man, p->child);
1.54 kristaps 337:
1.119 schwarze 338: man_node_unlink(man, p);
1.1 kristaps 339: man_node_free(p);
340: }
341:
1.101 kristaps 342: int
1.119 schwarze 343: man_addeqn(struct man *man, const struct eqn *ep)
1.101 kristaps 344: {
345: struct man_node *n;
346:
1.119 schwarze 347: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.101 kristaps 348: n->eqn = ep;
1.140 schwarze 349: if (ep->ln > man->last->line)
350: n->flags |= MAN_LINE;
1.101 kristaps 351:
1.119 schwarze 352: if ( ! man_node_append(man, n))
1.101 kristaps 353: return(0);
354:
1.119 schwarze 355: man->next = MAN_NEXT_SIBLING;
356: return(man_descope(man, ep->ln, ep->pos));
1.101 kristaps 357: }
1.1 kristaps 358:
1.94 kristaps 359: int
1.119 schwarze 360: man_addspan(struct man *man, const struct tbl_span *sp)
1.94 kristaps 361: {
1.100 kristaps 362: struct man_node *n;
1.94 kristaps 363:
1.119 schwarze 364: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.100 kristaps 365: n->span = sp;
366:
1.119 schwarze 367: if ( ! man_node_append(man, n))
1.94 kristaps 368: return(0);
1.100 kristaps 369:
1.119 schwarze 370: man->next = MAN_NEXT_SIBLING;
371: return(man_descope(man, sp->line, 0));
1.94 kristaps 372: }
373:
374: static int
1.119 schwarze 375: man_descope(struct man *man, int line, int offs)
1.94 kristaps 376: {
377: /*
378: * Co-ordinate what happens with having a next-line scope open:
379: * first close out the element scope (if applicable), then close
380: * out the block scope (also if applicable).
381: */
382:
1.119 schwarze 383: if (MAN_ELINE & man->flags) {
384: man->flags &= ~MAN_ELINE;
1.132 schwarze 385: if ( ! man_unscope(man, man->last->parent))
1.94 kristaps 386: return(0);
387: }
388:
1.119 schwarze 389: if ( ! (MAN_BLINE & man->flags))
1.94 kristaps 390: return(1);
1.119 schwarze 391: man->flags &= ~MAN_BLINE;
1.94 kristaps 392:
1.132 schwarze 393: if ( ! man_unscope(man, man->last->parent))
1.94 kristaps 394: return(0);
1.119 schwarze 395: return(man_body_alloc(man, line, offs, man->last->tok));
1.94 kristaps 396: }
397:
1.1 kristaps 398: static int
1.119 schwarze 399: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 400: {
1.61 kristaps 401: int i;
1.60 kristaps 402:
1.35 kristaps 403: /* Literal free-form text whitespace is preserved. */
404:
1.119 schwarze 405: if (MAN_LITERAL & man->flags) {
406: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.35 kristaps 407: return(0);
1.119 schwarze 408: return(man_descope(man, line, offs));
1.35 kristaps 409: }
410:
1.72 kristaps 411: for (i = offs; ' ' == buf[i]; i++)
1.31 kristaps 412: /* Skip leading whitespace. */ ;
1.48 kristaps 413:
1.121 schwarze 414: /*
415: * Blank lines are ignored right after headings
416: * but add a single vertical space elsewhere.
417: */
418:
1.49 kristaps 419: if ('\0' == buf[i]) {
1.61 kristaps 420: /* Allocate a blank entry. */
1.121 schwarze 421: if (MAN_SH != man->last->tok &&
422: MAN_SS != man->last->tok) {
423: if ( ! man_elem_alloc(man, line, offs, MAN_sp))
424: return(0);
425: man->next = MAN_NEXT_SIBLING;
426: }
1.118 schwarze 427: return(1);
1.31 kristaps 428: }
429:
1.129 schwarze 430: /*
1.63 kristaps 431: * Warn if the last un-escaped character is whitespace. Then
1.129 schwarze 432: * strip away the remaining spaces (tabs stay!).
1.63 kristaps 433: */
1.29 kristaps 434:
1.61 kristaps 435: i = (int)strlen(buf);
436: assert(i);
1.49 kristaps 437:
1.63 kristaps 438: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
1.64 kristaps 439: if (i > 1 && '\\' != buf[i - 2])
1.131 schwarze 440: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
441: line, i - 1, NULL);
1.63 kristaps 442:
443: for (--i; i && ' ' == buf[i]; i--)
444: /* Spin back to non-space. */ ;
445:
446: /* Jump ahead of escaped whitespace. */
447: i += '\\' == buf[i] ? 2 : 1;
448:
449: buf[i] = '\0';
450: }
1.49 kristaps 451:
1.119 schwarze 452: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.1 kristaps 453: return(0);
1.65 kristaps 454:
455: /*
456: * End-of-sentence check. If the last character is an unescaped
457: * EOS character, then flag the node as being the end of a
458: * sentence. The front-end will know how to interpret this.
459: */
1.67 kristaps 460:
1.65 kristaps 461: assert(i);
1.122 schwarze 462: if (mandoc_eos(buf, (size_t)i))
1.119 schwarze 463: man->last->flags |= MAN_EOS;
1.31 kristaps 464:
1.119 schwarze 465: return(man_descope(man, line, offs));
1.1 kristaps 466: }
467:
1.96 kristaps 468: static int
1.119 schwarze 469: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 470: {
1.34 kristaps 471: char mac[5];
472: struct man_node *n;
1.134 schwarze 473: enum mant tok;
474: int i, ppos;
475: int bline;
1.1 kristaps 476:
1.107 kristaps 477: ppos = offs;
1.9 kristaps 478:
1.56 kristaps 479: /*
1.107 kristaps 480: * Copy the first word into a nil-terminated buffer.
481: * Stop copying when a tab, space, or eoln is encountered.
1.56 kristaps 482: */
1.62 kristaps 483:
1.107 kristaps 484: i = 0;
1.129 schwarze 485: while (i < 4 && '\0' != buf[offs] && ' ' != buf[offs] &&
486: '\t' != buf[offs])
1.107 kristaps 487: mac[i++] = buf[offs++];
1.10 kristaps 488:
1.107 kristaps 489: mac[i] = '\0';
1.1 kristaps 490:
1.107 kristaps 491: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 492:
1.87 schwarze 493: if (MAN_MAX == tok) {
1.136 schwarze 494: mandoc_msg(MANDOCERR_MACRO, man->parse,
495: ln, ppos, buf + ppos - 1);
1.12 kristaps 496: return(1);
1.1 kristaps 497: }
498:
499: /* The macro is sane. Jump to the next word. */
500:
1.107 kristaps 501: while (buf[offs] && ' ' == buf[offs])
502: offs++;
1.1 kristaps 503:
1.129 schwarze 504: /*
1.62 kristaps 505: * Trailing whitespace. Note that tabs are allowed to be passed
506: * into the parser as "text", so we only warn about spaces here.
507: */
1.48 kristaps 508:
1.107 kristaps 509: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.131 schwarze 510: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
511: ln, offs - 1, NULL);
1.48 kristaps 512:
1.129 schwarze 513: /*
1.90 kristaps 514: * Remove prior ELINE macro, as it's being clobbered by a new
1.51 kristaps 515: * macro. Note that NSCOPED macros do not close out ELINE
516: * macros---they don't print text---so we let those slip by.
1.50 kristaps 517: */
1.34 kristaps 518:
1.53 kristaps 519: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.119 schwarze 520: man->flags & MAN_ELINE) {
521: n = man->last;
1.90 kristaps 522: assert(MAN_TEXT != n->type);
1.51 kristaps 523:
1.90 kristaps 524: /* Remove repeated NSCOPED macros causing ELINE. */
1.51 kristaps 525:
1.90 kristaps 526: if (MAN_NSCOPED & man_macros[n->tok].flags)
527: n = n->parent;
1.51 kristaps 528:
1.133 schwarze 529: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.113 schwarze 530: n->pos, "%s breaks %s", man_macronames[tok],
531: man_macronames[n->tok]);
1.34 kristaps 532:
1.119 schwarze 533: man_node_delete(man, n);
534: man->flags &= ~MAN_ELINE;
1.113 schwarze 535: }
536:
537: /*
538: * Remove prior BLINE macro that is being clobbered.
539: */
1.119 schwarze 540: if ((man->flags & MAN_BLINE) &&
1.113 schwarze 541: (MAN_BSCOPE & man_macros[tok].flags)) {
1.119 schwarze 542: n = man->last;
1.114 joerg 543:
544: /* Might be a text node like 8 in
545: * .TP 8
546: * .SH foo
547: */
548: if (MAN_TEXT == n->type)
549: n = n->parent;
1.113 schwarze 550:
551: /* Remove element that didn't end BLINE, if any. */
552: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
553: n = n->parent;
554:
555: assert(MAN_HEAD == n->type);
556: n = n->parent;
557: assert(MAN_BLOCK == n->type);
558: assert(MAN_SCOPED & man_macros[n->tok].flags);
559:
1.133 schwarze 560: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.113 schwarze 561: n->pos, "%s breaks %s", man_macronames[tok],
562: man_macronames[n->tok]);
563:
1.119 schwarze 564: man_node_delete(man, n);
565: man->flags &= ~MAN_BLINE;
1.34 kristaps 566: }
567:
1.134 schwarze 568: /* Remember whether we are in next-line scope for a block head. */
1.59 kristaps 569:
1.134 schwarze 570: bline = man->flags & MAN_BLINE;
1.59 kristaps 571:
572: /* Call to handler... */
1.1 kristaps 573:
1.53 kristaps 574: assert(man_macros[tok].fp);
1.119 schwarze 575: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.135 schwarze 576: return(0);
1.123 schwarze 577:
578: /* In quick mode (for mandocdb), abort after the NAME section. */
579:
1.130 schwarze 580: if (man->quick && MAN_SH == tok) {
581: n = man->last;
582: if (MAN_BODY == n->type &&
583: strcmp(n->prev->child->string, "NAME"))
584: return(2);
585: }
1.1 kristaps 586:
1.129 schwarze 587: /*
1.135 schwarze 588: * If we are in a next-line scope for a block head,
589: * close it out now and switch to the body,
590: * unless the next-line scope is allowed to continue.
1.29 kristaps 591: */
592:
1.135 schwarze 593: if ( ! bline || man->flags & MAN_ELINE ||
594: man_macros[tok].flags & MAN_NSCOPED)
1.29 kristaps 595: return(1);
596:
1.119 schwarze 597: assert(MAN_BLINE & man->flags);
598: man->flags &= ~MAN_BLINE;
1.11 kristaps 599:
1.132 schwarze 600: if ( ! man_unscope(man, man->last->parent))
1.29 kristaps 601: return(0);
1.119 schwarze 602: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 603: }
1.51 kristaps 604:
1.54 kristaps 605: /*
1.119 schwarze 606: * Unlink a node from its context. If "man" is provided, the last parse
1.54 kristaps 607: * point will also be adjusted accordingly.
608: */
609: static void
1.119 schwarze 610: man_node_unlink(struct man *man, struct man_node *n)
1.51 kristaps 611: {
612:
1.54 kristaps 613: /* Adjust siblings. */
614:
615: if (n->prev)
1.51 kristaps 616: n->prev->next = n->next;
1.54 kristaps 617: if (n->next)
618: n->next->prev = n->prev;
619:
620: /* Adjust parent. */
621:
622: if (n->parent) {
623: n->parent->nchild--;
624: if (n->parent->child == n)
625: n->parent->child = n->prev ? n->prev : n->next;
626: }
627:
628: /* Adjust parse point, if applicable. */
629:
1.119 schwarze 630: if (man && man->last == n) {
1.54 kristaps 631: /*XXX: this can occur when bailing from validation. */
632: /*assert(NULL == n->next);*/
633: if (n->prev) {
1.119 schwarze 634: man->last = n->prev;
635: man->next = MAN_NEXT_SIBLING;
1.54 kristaps 636: } else {
1.119 schwarze 637: man->last = n->parent;
638: man->next = MAN_NEXT_CHILD;
1.51 kristaps 639: }
640: }
641:
1.119 schwarze 642: if (man && man->first == n)
643: man->first = NULL;
1.112 kristaps 644: }
645:
646: const struct mparse *
1.119 schwarze 647: man_mparse(const struct man *man)
1.112 kristaps 648: {
649:
1.119 schwarze 650: assert(man && man->parse);
651: return(man->parse);
1.126 schwarze 652: }
653:
654: void
655: man_deroff(char **dest, const struct man_node *n)
656: {
657: char *cp;
658: size_t sz;
659:
660: if (MAN_TEXT != n->type) {
661: for (n = n->child; n; n = n->next)
662: man_deroff(dest, n);
663: return;
664: }
665:
1.127 schwarze 666: /* Skip leading whitespace and escape sequences. */
1.126 schwarze 667:
1.127 schwarze 668: cp = n->string;
669: while ('\0' != *cp) {
670: if ('\\' == *cp) {
671: cp++;
672: mandoc_escape((const char **)&cp, NULL, NULL);
673: } else if (isspace((unsigned char)*cp))
674: cp++;
675: else
1.126 schwarze 676: break;
1.127 schwarze 677: }
1.126 schwarze 678:
679: /* Skip trailing whitespace. */
680:
681: for (sz = strlen(cp); sz; sz--)
682: if (0 == isspace((unsigned char)cp[sz-1]))
683: break;
684:
685: /* Skip empty strings. */
686:
687: if (0 == sz)
688: return;
689:
690: if (NULL == *dest) {
691: *dest = mandoc_strndup(cp, sz);
692: return;
693: }
694:
695: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
696: free(*dest);
697: *dest = cp;
1.23 kristaps 698: }
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