Annotation of mandoc/man.c, Revision 1.140
1.140 ! schwarze 1: /* $Id: man.c,v 1.139 2014/09/06 23:24:32 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:
1.119 schwarze 122: man->flags |= MAN_NEWLINE;
1.97 kristaps 123:
1.119 schwarze 124: return (roff_getcontrol(man->roff, buf, &offs) ?
1.129 schwarze 125: man_pmacro(man, ln, buf, offs) :
126: man_ptext(man, ln, buf, offs));
1.1 kristaps 127: }
128:
1.2 kristaps 129: static void
130: man_free1(struct man *man)
131: {
132:
133: if (man->first)
1.54 kristaps 134: man_node_delete(man, man->first);
1.2 kristaps 135: if (man->meta.title)
136: free(man->meta.title);
1.6 kristaps 137: if (man->meta.source)
138: free(man->meta.source);
1.102 schwarze 139: if (man->meta.date)
140: free(man->meta.date);
1.2 kristaps 141: if (man->meta.vol)
142: free(man->meta.vol);
1.68 kristaps 143: if (man->meta.msec)
144: free(man->meta.msec);
1.2 kristaps 145: }
146:
1.45 kristaps 147: static void
1.119 schwarze 148: man_alloc1(struct man *man)
1.2 kristaps 149: {
150:
1.119 schwarze 151: memset(&man->meta, 0, sizeof(struct man_meta));
152: man->flags = 0;
153: man->last = mandoc_calloc(1, sizeof(struct man_node));
154: man->first = man->last;
155: man->last->type = MAN_ROOT;
156: man->last->tok = MAN_MAX;
157: man->next = MAN_NEXT_CHILD;
1.2 kristaps 158: }
159:
160:
1.1 kristaps 161: static int
162: man_node_append(struct man *man, struct man_node *p)
163: {
164:
165: assert(man->last);
166: assert(man->first);
167: assert(MAN_ROOT != p->type);
168:
169: switch (man->next) {
1.129 schwarze 170: case MAN_NEXT_SIBLING:
1.1 kristaps 171: man->last->next = p;
172: p->prev = man->last;
173: p->parent = man->last->parent;
174: break;
1.129 schwarze 175: case MAN_NEXT_CHILD:
1.1 kristaps 176: man->last->child = p;
177: p->parent = man->last;
178: break;
179: default:
180: abort();
181: /* NOTREACHED */
182: }
1.129 schwarze 183:
1.54 kristaps 184: assert(p->parent);
1.22 kristaps 185: p->parent->nchild++;
1.1 kristaps 186:
1.29 kristaps 187: switch (p->type) {
1.137 schwarze 188: case MAN_BLOCK:
189: if (p->tok == MAN_SH || p->tok == MAN_SS)
190: man->flags &= ~MAN_LITERAL;
191: break;
1.129 schwarze 192: case MAN_HEAD:
1.29 kristaps 193: assert(MAN_BLOCK == p->parent->type);
194: p->parent->head = p;
195: break;
1.129 schwarze 196: case MAN_TAIL:
1.106 kristaps 197: assert(MAN_BLOCK == p->parent->type);
198: p->parent->tail = p;
199: break;
1.129 schwarze 200: case MAN_BODY:
1.29 kristaps 201: assert(MAN_BLOCK == p->parent->type);
202: p->parent->body = p;
203: break;
204: default:
205: break;
206: }
207:
1.2 kristaps 208: man->last = p;
209:
1.1 kristaps 210: switch (p->type) {
1.129 schwarze 211: case MAN_TBL:
1.94 kristaps 212: /* FALLTHROUGH */
1.129 schwarze 213: case MAN_TEXT:
1.2 kristaps 214: if ( ! man_valid_post(man))
215: return(0);
1.1 kristaps 216: break;
217: default:
218: break;
219: }
220:
221: return(1);
222: }
223:
224: static struct man_node *
1.129 schwarze 225: man_node_alloc(struct man *man, int line, int pos,
1.97 kristaps 226: enum man_type type, enum mant tok)
1.1 kristaps 227: {
228: struct man_node *p;
229:
1.45 kristaps 230: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 231: p->line = line;
232: p->pos = pos;
233: p->type = type;
1.16 kristaps 234: p->tok = tok;
1.97 kristaps 235:
1.119 schwarze 236: if (MAN_NEWLINE & man->flags)
1.97 kristaps 237: p->flags |= MAN_LINE;
1.119 schwarze 238: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 239: return(p);
240: }
241:
242: int
1.119 schwarze 243: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 244: {
245: struct man_node *p;
246:
1.119 schwarze 247: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
248: if ( ! man_node_append(man, p))
1.106 kristaps 249: return(0);
1.119 schwarze 250: man->next = MAN_NEXT_CHILD;
1.106 kristaps 251: return(1);
252: }
253:
254: int
1.119 schwarze 255: man_tail_alloc(struct man *man, int line, int pos, enum mant tok)
1.106 kristaps 256: {
257: struct man_node *p;
258:
1.119 schwarze 259: p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
260: if ( ! man_node_append(man, p))
1.30 kristaps 261: return(0);
1.119 schwarze 262: man->next = MAN_NEXT_CHILD;
1.30 kristaps 263: return(1);
1.1 kristaps 264: }
265:
266: int
1.119 schwarze 267: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 268: {
269: struct man_node *p;
270:
1.119 schwarze 271: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
272: if ( ! man_node_append(man, p))
1.29 kristaps 273: return(0);
1.119 schwarze 274: man->next = MAN_NEXT_CHILD;
1.29 kristaps 275: return(1);
276: }
277:
278: int
1.119 schwarze 279: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 280: {
281: struct man_node *p;
282:
1.119 schwarze 283: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
284: if ( ! man_node_append(man, p))
1.29 kristaps 285: return(0);
1.119 schwarze 286: man->next = MAN_NEXT_CHILD;
1.29 kristaps 287: return(1);
288: }
289:
290: int
1.119 schwarze 291: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 292: {
293: struct man_node *p;
294:
1.119 schwarze 295: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
296: if ( ! man_node_append(man, p))
1.29 kristaps 297: return(0);
1.119 schwarze 298: man->next = MAN_NEXT_CHILD;
1.29 kristaps 299: return(1);
300: }
301:
1.61 kristaps 302: int
1.119 schwarze 303: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 304: {
1.31 kristaps 305: struct man_node *n;
1.1 kristaps 306:
1.119 schwarze 307: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
308: n->string = roff_strdup(man->roff, word);
1.31 kristaps 309:
1.119 schwarze 310: if ( ! man_node_append(man, n))
1.30 kristaps 311: return(0);
1.61 kristaps 312:
1.119 schwarze 313: man->next = MAN_NEXT_SIBLING;
1.30 kristaps 314: return(1);
1.1 kristaps 315: }
316:
1.54 kristaps 317: /*
318: * Free all of the resources held by a node. This does NOT unlink a
319: * node from its context; for that, see man_node_unlink().
320: */
321: static void
1.1 kristaps 322: man_node_free(struct man_node *p)
323: {
324:
325: if (p->string)
326: free(p->string);
327: free(p);
328: }
329:
330: void
1.119 schwarze 331: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 332: {
333:
1.54 kristaps 334: while (p->child)
1.119 schwarze 335: man_node_delete(man, p->child);
1.54 kristaps 336:
1.119 schwarze 337: man_node_unlink(man, p);
1.1 kristaps 338: man_node_free(p);
339: }
340:
1.101 kristaps 341: int
1.119 schwarze 342: man_addeqn(struct man *man, const struct eqn *ep)
1.101 kristaps 343: {
344: struct man_node *n;
345:
1.119 schwarze 346: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.101 kristaps 347: n->eqn = ep;
1.140 ! schwarze 348: if (ep->ln > man->last->line)
! 349: n->flags |= MAN_LINE;
1.101 kristaps 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: ppos = offs;
1.9 kristaps 477:
1.56 kristaps 478: /*
1.107 kristaps 479: * Copy the first word into a nil-terminated buffer.
480: * Stop copying when a tab, space, or eoln is encountered.
1.56 kristaps 481: */
1.62 kristaps 482:
1.107 kristaps 483: i = 0;
1.129 schwarze 484: while (i < 4 && '\0' != buf[offs] && ' ' != buf[offs] &&
485: '\t' != buf[offs])
1.107 kristaps 486: mac[i++] = buf[offs++];
1.10 kristaps 487:
1.107 kristaps 488: mac[i] = '\0';
1.1 kristaps 489:
1.107 kristaps 490: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 491:
1.87 schwarze 492: if (MAN_MAX == tok) {
1.136 schwarze 493: mandoc_msg(MANDOCERR_MACRO, man->parse,
494: ln, ppos, buf + ppos - 1);
1.12 kristaps 495: return(1);
1.1 kristaps 496: }
497:
498: /* The macro is sane. Jump to the next word. */
499:
1.107 kristaps 500: while (buf[offs] && ' ' == buf[offs])
501: offs++;
1.1 kristaps 502:
1.129 schwarze 503: /*
1.62 kristaps 504: * Trailing whitespace. Note that tabs are allowed to be passed
505: * into the parser as "text", so we only warn about spaces here.
506: */
1.48 kristaps 507:
1.107 kristaps 508: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.131 schwarze 509: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
510: ln, offs - 1, NULL);
1.48 kristaps 511:
1.129 schwarze 512: /*
1.90 kristaps 513: * Remove prior ELINE macro, as it's being clobbered by a new
1.51 kristaps 514: * macro. Note that NSCOPED macros do not close out ELINE
515: * macros---they don't print text---so we let those slip by.
1.50 kristaps 516: */
1.34 kristaps 517:
1.53 kristaps 518: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.119 schwarze 519: man->flags & MAN_ELINE) {
520: n = man->last;
1.90 kristaps 521: assert(MAN_TEXT != n->type);
1.51 kristaps 522:
1.90 kristaps 523: /* Remove repeated NSCOPED macros causing ELINE. */
1.51 kristaps 524:
1.90 kristaps 525: if (MAN_NSCOPED & man_macros[n->tok].flags)
526: n = n->parent;
1.51 kristaps 527:
1.133 schwarze 528: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.113 schwarze 529: n->pos, "%s breaks %s", man_macronames[tok],
530: man_macronames[n->tok]);
1.34 kristaps 531:
1.119 schwarze 532: man_node_delete(man, n);
533: man->flags &= ~MAN_ELINE;
1.113 schwarze 534: }
535:
536: /*
537: * Remove prior BLINE macro that is being clobbered.
538: */
1.119 schwarze 539: if ((man->flags & MAN_BLINE) &&
1.113 schwarze 540: (MAN_BSCOPE & man_macros[tok].flags)) {
1.119 schwarze 541: n = man->last;
1.114 joerg 542:
543: /* Might be a text node like 8 in
544: * .TP 8
545: * .SH foo
546: */
547: if (MAN_TEXT == n->type)
548: n = n->parent;
1.113 schwarze 549:
550: /* Remove element that didn't end BLINE, if any. */
551: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
552: n = n->parent;
553:
554: assert(MAN_HEAD == n->type);
555: n = n->parent;
556: assert(MAN_BLOCK == n->type);
557: assert(MAN_SCOPED & man_macros[n->tok].flags);
558:
1.133 schwarze 559: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.113 schwarze 560: n->pos, "%s breaks %s", man_macronames[tok],
561: man_macronames[n->tok]);
562:
1.119 schwarze 563: man_node_delete(man, n);
564: man->flags &= ~MAN_BLINE;
1.34 kristaps 565: }
566:
1.134 schwarze 567: /* Remember whether we are in next-line scope for a block head. */
1.59 kristaps 568:
1.134 schwarze 569: bline = man->flags & MAN_BLINE;
1.59 kristaps 570:
571: /* Call to handler... */
1.1 kristaps 572:
1.53 kristaps 573: assert(man_macros[tok].fp);
1.119 schwarze 574: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.135 schwarze 575: return(0);
1.123 schwarze 576:
577: /* In quick mode (for mandocdb), abort after the NAME section. */
578:
1.130 schwarze 579: if (man->quick && MAN_SH == tok) {
580: n = man->last;
581: if (MAN_BODY == n->type &&
582: strcmp(n->prev->child->string, "NAME"))
583: return(2);
584: }
1.1 kristaps 585:
1.129 schwarze 586: /*
1.135 schwarze 587: * If we are in a next-line scope for a block head,
588: * close it out now and switch to the body,
589: * unless the next-line scope is allowed to continue.
1.29 kristaps 590: */
591:
1.135 schwarze 592: if ( ! bline || man->flags & MAN_ELINE ||
593: man_macros[tok].flags & MAN_NSCOPED)
1.29 kristaps 594: return(1);
595:
1.119 schwarze 596: assert(MAN_BLINE & man->flags);
597: man->flags &= ~MAN_BLINE;
1.11 kristaps 598:
1.132 schwarze 599: if ( ! man_unscope(man, man->last->parent))
1.29 kristaps 600: return(0);
1.119 schwarze 601: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 602: }
1.51 kristaps 603:
1.54 kristaps 604: /*
1.119 schwarze 605: * Unlink a node from its context. If "man" is provided, the last parse
1.54 kristaps 606: * point will also be adjusted accordingly.
607: */
608: static void
1.119 schwarze 609: man_node_unlink(struct man *man, struct man_node *n)
1.51 kristaps 610: {
611:
1.54 kristaps 612: /* Adjust siblings. */
613:
614: if (n->prev)
1.51 kristaps 615: n->prev->next = n->next;
1.54 kristaps 616: if (n->next)
617: n->next->prev = n->prev;
618:
619: /* Adjust parent. */
620:
621: if (n->parent) {
622: n->parent->nchild--;
623: if (n->parent->child == n)
624: n->parent->child = n->prev ? n->prev : n->next;
625: }
626:
627: /* Adjust parse point, if applicable. */
628:
1.119 schwarze 629: if (man && man->last == n) {
1.54 kristaps 630: /*XXX: this can occur when bailing from validation. */
631: /*assert(NULL == n->next);*/
632: if (n->prev) {
1.119 schwarze 633: man->last = n->prev;
634: man->next = MAN_NEXT_SIBLING;
1.54 kristaps 635: } else {
1.119 schwarze 636: man->last = n->parent;
637: man->next = MAN_NEXT_CHILD;
1.51 kristaps 638: }
639: }
640:
1.119 schwarze 641: if (man && man->first == n)
642: man->first = NULL;
1.112 kristaps 643: }
644:
645: const struct mparse *
1.119 schwarze 646: man_mparse(const struct man *man)
1.112 kristaps 647: {
648:
1.119 schwarze 649: assert(man && man->parse);
650: return(man->parse);
1.126 schwarze 651: }
652:
653: void
654: man_deroff(char **dest, const struct man_node *n)
655: {
656: char *cp;
657: size_t sz;
658:
659: if (MAN_TEXT != n->type) {
660: for (n = n->child; n; n = n->next)
661: man_deroff(dest, n);
662: return;
663: }
664:
1.127 schwarze 665: /* Skip leading whitespace and escape sequences. */
1.126 schwarze 666:
1.127 schwarze 667: cp = n->string;
668: while ('\0' != *cp) {
669: if ('\\' == *cp) {
670: cp++;
671: mandoc_escape((const char **)&cp, NULL, NULL);
672: } else if (isspace((unsigned char)*cp))
673: cp++;
674: else
1.126 schwarze 675: break;
1.127 schwarze 676: }
1.126 schwarze 677:
678: /* Skip trailing whitespace. */
679:
680: for (sz = strlen(cp); sz; sz--)
681: if (0 == isspace((unsigned char)cp[sz-1]))
682: break;
683:
684: /* Skip empty strings. */
685:
686: if (0 == sz)
687: return;
688:
689: if (NULL == *dest) {
690: *dest = mandoc_strndup(cp, sz);
691: return;
692: }
693:
694: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
695: free(*dest);
696: *dest = cp;
1.23 kristaps 697: }
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