Annotation of mandoc/man.c, Revision 1.136
1.136 ! schwarze 1: /* $Id: man.c,v 1.135 2014/07/30 21:18:24 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: if ( ! man_valid_pre(man, p))
190: return(0);
191:
192: switch (p->type) {
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;
349:
1.119 schwarze 350: if ( ! man_node_append(man, n))
1.101 kristaps 351: return(0);
352:
1.119 schwarze 353: man->next = MAN_NEXT_SIBLING;
354: return(man_descope(man, ep->ln, ep->pos));
1.101 kristaps 355: }
1.1 kristaps 356:
1.94 kristaps 357: int
1.119 schwarze 358: man_addspan(struct man *man, const struct tbl_span *sp)
1.94 kristaps 359: {
1.100 kristaps 360: struct man_node *n;
1.94 kristaps 361:
1.119 schwarze 362: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.100 kristaps 363: n->span = sp;
364:
1.119 schwarze 365: if ( ! man_node_append(man, n))
1.94 kristaps 366: return(0);
1.100 kristaps 367:
1.119 schwarze 368: man->next = MAN_NEXT_SIBLING;
369: return(man_descope(man, sp->line, 0));
1.94 kristaps 370: }
371:
372: static int
1.119 schwarze 373: man_descope(struct man *man, int line, int offs)
1.94 kristaps 374: {
375: /*
376: * Co-ordinate what happens with having a next-line scope open:
377: * first close out the element scope (if applicable), then close
378: * out the block scope (also if applicable).
379: */
380:
1.119 schwarze 381: if (MAN_ELINE & man->flags) {
382: man->flags &= ~MAN_ELINE;
1.132 schwarze 383: if ( ! man_unscope(man, man->last->parent))
1.94 kristaps 384: return(0);
385: }
386:
1.119 schwarze 387: if ( ! (MAN_BLINE & man->flags))
1.94 kristaps 388: return(1);
1.119 schwarze 389: man->flags &= ~MAN_BLINE;
1.94 kristaps 390:
1.132 schwarze 391: if ( ! man_unscope(man, man->last->parent))
1.94 kristaps 392: return(0);
1.119 schwarze 393: return(man_body_alloc(man, line, offs, man->last->tok));
1.94 kristaps 394: }
395:
1.1 kristaps 396: static int
1.119 schwarze 397: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 398: {
1.61 kristaps 399: int i;
1.60 kristaps 400:
1.35 kristaps 401: /* Literal free-form text whitespace is preserved. */
402:
1.119 schwarze 403: if (MAN_LITERAL & man->flags) {
404: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.35 kristaps 405: return(0);
1.119 schwarze 406: return(man_descope(man, line, offs));
1.35 kristaps 407: }
408:
1.72 kristaps 409: for (i = offs; ' ' == buf[i]; i++)
1.31 kristaps 410: /* Skip leading whitespace. */ ;
1.48 kristaps 411:
1.121 schwarze 412: /*
413: * Blank lines are ignored right after headings
414: * but add a single vertical space elsewhere.
415: */
416:
1.49 kristaps 417: if ('\0' == buf[i]) {
1.61 kristaps 418: /* Allocate a blank entry. */
1.121 schwarze 419: if (MAN_SH != man->last->tok &&
420: MAN_SS != man->last->tok) {
421: if ( ! man_elem_alloc(man, line, offs, MAN_sp))
422: return(0);
423: man->next = MAN_NEXT_SIBLING;
424: }
1.118 schwarze 425: return(1);
1.31 kristaps 426: }
427:
1.129 schwarze 428: /*
1.63 kristaps 429: * Warn if the last un-escaped character is whitespace. Then
1.129 schwarze 430: * strip away the remaining spaces (tabs stay!).
1.63 kristaps 431: */
1.29 kristaps 432:
1.61 kristaps 433: i = (int)strlen(buf);
434: assert(i);
1.49 kristaps 435:
1.63 kristaps 436: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
1.64 kristaps 437: if (i > 1 && '\\' != buf[i - 2])
1.131 schwarze 438: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
439: line, i - 1, NULL);
1.63 kristaps 440:
441: for (--i; i && ' ' == buf[i]; i--)
442: /* Spin back to non-space. */ ;
443:
444: /* Jump ahead of escaped whitespace. */
445: i += '\\' == buf[i] ? 2 : 1;
446:
447: buf[i] = '\0';
448: }
1.49 kristaps 449:
1.119 schwarze 450: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.1 kristaps 451: return(0);
1.65 kristaps 452:
453: /*
454: * End-of-sentence check. If the last character is an unescaped
455: * EOS character, then flag the node as being the end of a
456: * sentence. The front-end will know how to interpret this.
457: */
1.67 kristaps 458:
1.65 kristaps 459: assert(i);
1.122 schwarze 460: if (mandoc_eos(buf, (size_t)i))
1.119 schwarze 461: man->last->flags |= MAN_EOS;
1.31 kristaps 462:
1.119 schwarze 463: return(man_descope(man, line, offs));
1.1 kristaps 464: }
465:
1.96 kristaps 466: static int
1.119 schwarze 467: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 468: {
1.34 kristaps 469: char mac[5];
470: struct man_node *n;
1.134 schwarze 471: enum mant tok;
472: int i, ppos;
473: int bline;
1.1 kristaps 474:
1.107 kristaps 475: if ('"' == buf[offs]) {
1.131 schwarze 476: mandoc_msg(MANDOCERR_COMMENT_BAD, man->parse,
477: ln, offs, NULL);
1.107 kristaps 478: return(1);
479: } else if ('\0' == buf[offs])
1.46 kristaps 480: return(1);
1.1 kristaps 481:
1.107 kristaps 482: ppos = offs;
1.9 kristaps 483:
1.56 kristaps 484: /*
1.107 kristaps 485: * Copy the first word into a nil-terminated buffer.
486: * Stop copying when a tab, space, or eoln is encountered.
1.56 kristaps 487: */
1.62 kristaps 488:
1.107 kristaps 489: i = 0;
1.129 schwarze 490: while (i < 4 && '\0' != buf[offs] && ' ' != buf[offs] &&
491: '\t' != buf[offs])
1.107 kristaps 492: mac[i++] = buf[offs++];
1.10 kristaps 493:
1.107 kristaps 494: mac[i] = '\0';
1.1 kristaps 495:
1.107 kristaps 496: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 497:
1.87 schwarze 498: if (MAN_MAX == tok) {
1.136 ! schwarze 499: mandoc_msg(MANDOCERR_MACRO, man->parse,
! 500: ln, ppos, buf + ppos - 1);
1.12 kristaps 501: return(1);
1.1 kristaps 502: }
503:
504: /* The macro is sane. Jump to the next word. */
505:
1.107 kristaps 506: while (buf[offs] && ' ' == buf[offs])
507: offs++;
1.1 kristaps 508:
1.129 schwarze 509: /*
1.62 kristaps 510: * Trailing whitespace. Note that tabs are allowed to be passed
511: * into the parser as "text", so we only warn about spaces here.
512: */
1.48 kristaps 513:
1.107 kristaps 514: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.131 schwarze 515: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
516: ln, offs - 1, NULL);
1.48 kristaps 517:
1.129 schwarze 518: /*
1.90 kristaps 519: * Remove prior ELINE macro, as it's being clobbered by a new
1.51 kristaps 520: * macro. Note that NSCOPED macros do not close out ELINE
521: * macros---they don't print text---so we let those slip by.
1.50 kristaps 522: */
1.34 kristaps 523:
1.53 kristaps 524: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.119 schwarze 525: man->flags & MAN_ELINE) {
526: n = man->last;
1.90 kristaps 527: assert(MAN_TEXT != n->type);
1.51 kristaps 528:
1.90 kristaps 529: /* Remove repeated NSCOPED macros causing ELINE. */
1.51 kristaps 530:
1.90 kristaps 531: if (MAN_NSCOPED & man_macros[n->tok].flags)
532: n = n->parent;
1.51 kristaps 533:
1.133 schwarze 534: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.113 schwarze 535: n->pos, "%s breaks %s", man_macronames[tok],
536: man_macronames[n->tok]);
1.34 kristaps 537:
1.119 schwarze 538: man_node_delete(man, n);
539: man->flags &= ~MAN_ELINE;
1.113 schwarze 540: }
541:
542: /*
543: * Remove prior BLINE macro that is being clobbered.
544: */
1.119 schwarze 545: if ((man->flags & MAN_BLINE) &&
1.113 schwarze 546: (MAN_BSCOPE & man_macros[tok].flags)) {
1.119 schwarze 547: n = man->last;
1.114 joerg 548:
549: /* Might be a text node like 8 in
550: * .TP 8
551: * .SH foo
552: */
553: if (MAN_TEXT == n->type)
554: n = n->parent;
1.113 schwarze 555:
556: /* Remove element that didn't end BLINE, if any. */
557: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
558: n = n->parent;
559:
560: assert(MAN_HEAD == n->type);
561: n = n->parent;
562: assert(MAN_BLOCK == n->type);
563: assert(MAN_SCOPED & man_macros[n->tok].flags);
564:
1.133 schwarze 565: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.113 schwarze 566: n->pos, "%s breaks %s", man_macronames[tok],
567: man_macronames[n->tok]);
568:
1.119 schwarze 569: man_node_delete(man, n);
570: man->flags &= ~MAN_BLINE;
1.34 kristaps 571: }
572:
1.134 schwarze 573: /* Remember whether we are in next-line scope for a block head. */
1.59 kristaps 574:
1.134 schwarze 575: bline = man->flags & MAN_BLINE;
1.59 kristaps 576:
577: /* Call to handler... */
1.1 kristaps 578:
1.53 kristaps 579: assert(man_macros[tok].fp);
1.119 schwarze 580: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.135 schwarze 581: return(0);
1.123 schwarze 582:
583: /* In quick mode (for mandocdb), abort after the NAME section. */
584:
1.130 schwarze 585: if (man->quick && MAN_SH == tok) {
586: n = man->last;
587: if (MAN_BODY == n->type &&
588: strcmp(n->prev->child->string, "NAME"))
589: return(2);
590: }
1.1 kristaps 591:
1.129 schwarze 592: /*
1.135 schwarze 593: * If we are in a next-line scope for a block head,
594: * close it out now and switch to the body,
595: * unless the next-line scope is allowed to continue.
1.29 kristaps 596: */
597:
1.135 schwarze 598: if ( ! bline || man->flags & MAN_ELINE ||
599: man_macros[tok].flags & MAN_NSCOPED)
1.29 kristaps 600: return(1);
601:
1.119 schwarze 602: assert(MAN_BLINE & man->flags);
603: man->flags &= ~MAN_BLINE;
1.11 kristaps 604:
1.132 schwarze 605: if ( ! man_unscope(man, man->last->parent))
1.29 kristaps 606: return(0);
1.119 schwarze 607: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 608: }
1.51 kristaps 609:
1.54 kristaps 610: /*
1.119 schwarze 611: * Unlink a node from its context. If "man" is provided, the last parse
1.54 kristaps 612: * point will also be adjusted accordingly.
613: */
614: static void
1.119 schwarze 615: man_node_unlink(struct man *man, struct man_node *n)
1.51 kristaps 616: {
617:
1.54 kristaps 618: /* Adjust siblings. */
619:
620: if (n->prev)
1.51 kristaps 621: n->prev->next = n->next;
1.54 kristaps 622: if (n->next)
623: n->next->prev = n->prev;
624:
625: /* Adjust parent. */
626:
627: if (n->parent) {
628: n->parent->nchild--;
629: if (n->parent->child == n)
630: n->parent->child = n->prev ? n->prev : n->next;
631: }
632:
633: /* Adjust parse point, if applicable. */
634:
1.119 schwarze 635: if (man && man->last == n) {
1.54 kristaps 636: /*XXX: this can occur when bailing from validation. */
637: /*assert(NULL == n->next);*/
638: if (n->prev) {
1.119 schwarze 639: man->last = n->prev;
640: man->next = MAN_NEXT_SIBLING;
1.54 kristaps 641: } else {
1.119 schwarze 642: man->last = n->parent;
643: man->next = MAN_NEXT_CHILD;
1.51 kristaps 644: }
645: }
646:
1.119 schwarze 647: if (man && man->first == n)
648: man->first = NULL;
1.112 kristaps 649: }
650:
651: const struct mparse *
1.119 schwarze 652: man_mparse(const struct man *man)
1.112 kristaps 653: {
654:
1.119 schwarze 655: assert(man && man->parse);
656: return(man->parse);
1.126 schwarze 657: }
658:
659: void
660: man_deroff(char **dest, const struct man_node *n)
661: {
662: char *cp;
663: size_t sz;
664:
665: if (MAN_TEXT != n->type) {
666: for (n = n->child; n; n = n->next)
667: man_deroff(dest, n);
668: return;
669: }
670:
1.127 schwarze 671: /* Skip leading whitespace and escape sequences. */
1.126 schwarze 672:
1.127 schwarze 673: cp = n->string;
674: while ('\0' != *cp) {
675: if ('\\' == *cp) {
676: cp++;
677: mandoc_escape((const char **)&cp, NULL, NULL);
678: } else if (isspace((unsigned char)*cp))
679: cp++;
680: else
1.126 schwarze 681: break;
1.127 schwarze 682: }
1.126 schwarze 683:
684: /* Skip trailing whitespace. */
685:
686: for (sz = strlen(cp); sz; sz--)
687: if (0 == isspace((unsigned char)cp[sz-1]))
688: break;
689:
690: /* Skip empty strings. */
691:
692: if (0 == sz)
693: return;
694:
695: if (NULL == *dest) {
696: *dest = mandoc_strndup(cp, sz);
697: return;
698: }
699:
700: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
701: free(*dest);
702: *dest = cp;
1.23 kristaps 703: }
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