Annotation of mandoc/man.c, Revision 1.148
1.148 ! schwarze 1: /* $Id: man.c,v 1.147 2015/01/15 04:26:40 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",
1.148 ! schwarze 42: "RI", "sp", "nf",
1.92 kristaps 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);
1.144 schwarze 53: static void man_node_append(struct man *, struct man_node *);
1.54 kristaps 54: static void man_node_free(struct man_node *);
1.129 schwarze 55: static void man_node_unlink(struct man *,
1.54 kristaps 56: struct man_node *);
1.72 kristaps 57: static int man_ptext(struct man *, int, char *, int);
1.79 kristaps 58: static int man_pmacro(struct man *, int, char *, int);
1.2 kristaps 59: static void man_free1(struct man *);
1.45 kristaps 60: static void man_alloc1(struct man *);
1.144 schwarze 61: static void man_descope(struct man *, int, int);
1.1 kristaps 62:
63:
64: const struct man_node *
1.119 schwarze 65: man_node(const struct man *man)
1.1 kristaps 66: {
67:
1.119 schwarze 68: return(man->first);
1.1 kristaps 69: }
70:
71: const struct man_meta *
1.119 schwarze 72: man_meta(const struct man *man)
1.1 kristaps 73: {
74:
1.119 schwarze 75: return(&man->meta);
1.1 kristaps 76: }
77:
1.45 kristaps 78: void
1.1 kristaps 79: man_reset(struct man *man)
80: {
81:
1.2 kristaps 82: man_free1(man);
1.45 kristaps 83: man_alloc1(man);
1.1 kristaps 84: }
85:
86: void
87: man_free(struct man *man)
88: {
89:
1.2 kristaps 90: man_free1(man);
1.1 kristaps 91: free(man);
92: }
93:
94: struct man *
1.146 schwarze 95: man_alloc(struct roff *roff, struct mparse *parse,
96: const char *defos, 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;
1.146 schwarze 104: p->defos = defos;
1.123 schwarze 105: p->quick = quick;
1.108 kristaps 106: p->roff = roff;
1.45 kristaps 107:
108: man_alloc1(p);
1.1 kristaps 109: return(p);
110: }
111:
1.147 schwarze 112: void
1.119 schwarze 113: man_endparse(struct man *man)
1.1 kristaps 114: {
115:
1.144 schwarze 116: man_macroend(man);
1.1 kristaps 117: }
118:
119: int
1.119 schwarze 120: man_parseln(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 121: {
122:
1.141 schwarze 123: if (man->last->type != MAN_EQN || ln > man->last->line)
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);
1.144 schwarze 137: free(man->meta.title);
138: free(man->meta.source);
139: free(man->meta.date);
140: free(man->meta.vol);
141: free(man->meta.msec);
1.2 kristaps 142: }
143:
1.45 kristaps 144: static void
1.119 schwarze 145: man_alloc1(struct man *man)
1.2 kristaps 146: {
147:
1.119 schwarze 148: memset(&man->meta, 0, sizeof(struct man_meta));
149: man->flags = 0;
150: man->last = mandoc_calloc(1, sizeof(struct man_node));
151: man->first = man->last;
152: man->last->type = MAN_ROOT;
153: man->last->tok = MAN_MAX;
154: man->next = MAN_NEXT_CHILD;
1.2 kristaps 155: }
156:
157:
1.144 schwarze 158: static void
1.1 kristaps 159: man_node_append(struct man *man, struct man_node *p)
160: {
161:
162: assert(man->last);
163: assert(man->first);
1.144 schwarze 164: assert(p->type != MAN_ROOT);
1.1 kristaps 165:
166: switch (man->next) {
1.129 schwarze 167: case MAN_NEXT_SIBLING:
1.1 kristaps 168: man->last->next = p;
169: p->prev = man->last;
170: p->parent = man->last->parent;
171: break;
1.129 schwarze 172: case MAN_NEXT_CHILD:
1.1 kristaps 173: man->last->child = p;
174: p->parent = man->last;
175: break;
176: default:
177: abort();
178: /* NOTREACHED */
179: }
1.129 schwarze 180:
1.54 kristaps 181: assert(p->parent);
1.22 kristaps 182: p->parent->nchild++;
1.1 kristaps 183:
1.29 kristaps 184: switch (p->type) {
1.137 schwarze 185: case MAN_BLOCK:
186: if (p->tok == MAN_SH || p->tok == MAN_SS)
187: man->flags &= ~MAN_LITERAL;
188: break;
1.129 schwarze 189: case MAN_HEAD:
1.144 schwarze 190: assert(p->parent->type == MAN_BLOCK);
1.29 kristaps 191: p->parent->head = p;
192: break;
1.129 schwarze 193: case MAN_BODY:
1.144 schwarze 194: assert(p->parent->type == MAN_BLOCK);
1.29 kristaps 195: p->parent->body = p;
196: break;
197: default:
198: break;
199: }
200:
1.2 kristaps 201: man->last = p;
202:
1.1 kristaps 203: switch (p->type) {
1.129 schwarze 204: case MAN_TBL:
1.94 kristaps 205: /* FALLTHROUGH */
1.129 schwarze 206: case MAN_TEXT:
1.144 schwarze 207: man_valid_post(man);
1.1 kristaps 208: break;
209: default:
210: break;
211: }
212: }
213:
214: static struct man_node *
1.129 schwarze 215: man_node_alloc(struct man *man, int line, int pos,
1.97 kristaps 216: enum man_type type, enum mant tok)
1.1 kristaps 217: {
218: struct man_node *p;
219:
1.45 kristaps 220: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 221: p->line = line;
222: p->pos = pos;
223: p->type = type;
1.16 kristaps 224: p->tok = tok;
1.97 kristaps 225:
1.144 schwarze 226: if (man->flags & MAN_NEWLINE)
1.97 kristaps 227: p->flags |= MAN_LINE;
1.119 schwarze 228: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 229: return(p);
230: }
231:
1.144 schwarze 232: void
1.119 schwarze 233: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 234: {
235: struct man_node *p;
236:
1.119 schwarze 237: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
1.144 schwarze 238: man_node_append(man, p);
1.119 schwarze 239: man->next = MAN_NEXT_CHILD;
1.106 kristaps 240: }
241:
1.144 schwarze 242: void
1.119 schwarze 243: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 244: {
245: struct man_node *p;
246:
1.119 schwarze 247: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
1.144 schwarze 248: man_node_append(man, p);
1.119 schwarze 249: man->next = MAN_NEXT_CHILD;
1.29 kristaps 250: }
251:
1.144 schwarze 252: void
1.119 schwarze 253: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 254: {
255: struct man_node *p;
256:
1.119 schwarze 257: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
1.144 schwarze 258: man_node_append(man, p);
1.119 schwarze 259: man->next = MAN_NEXT_CHILD;
1.29 kristaps 260: }
261:
1.144 schwarze 262: void
1.119 schwarze 263: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 264: {
265: struct man_node *p;
266:
1.119 schwarze 267: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
1.144 schwarze 268: man_node_append(man, p);
1.119 schwarze 269: man->next = MAN_NEXT_CHILD;
1.29 kristaps 270: }
271:
1.144 schwarze 272: void
1.119 schwarze 273: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 274: {
1.31 kristaps 275: struct man_node *n;
1.1 kristaps 276:
1.119 schwarze 277: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
278: n->string = roff_strdup(man->roff, word);
1.144 schwarze 279: man_node_append(man, n);
1.119 schwarze 280: man->next = MAN_NEXT_SIBLING;
1.142 schwarze 281: }
282:
283: void
284: man_word_append(struct man *man, const char *word)
285: {
286: struct man_node *n;
287: char *addstr, *newstr;
288:
289: n = man->last;
290: addstr = roff_strdup(man->roff, word);
291: mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
292: free(addstr);
293: free(n->string);
294: n->string = newstr;
295: man->next = MAN_NEXT_SIBLING;
1.1 kristaps 296: }
297:
1.54 kristaps 298: /*
299: * Free all of the resources held by a node. This does NOT unlink a
300: * node from its context; for that, see man_node_unlink().
301: */
302: static void
1.1 kristaps 303: man_node_free(struct man_node *p)
304: {
305:
1.144 schwarze 306: free(p->string);
1.1 kristaps 307: free(p);
308: }
309:
310: void
1.119 schwarze 311: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 312: {
313:
1.54 kristaps 314: while (p->child)
1.119 schwarze 315: man_node_delete(man, p->child);
1.54 kristaps 316:
1.119 schwarze 317: man_node_unlink(man, p);
1.1 kristaps 318: man_node_free(p);
319: }
320:
1.145 schwarze 321: void
1.119 schwarze 322: man_addeqn(struct man *man, const struct eqn *ep)
1.101 kristaps 323: {
324: struct man_node *n;
325:
1.119 schwarze 326: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.101 kristaps 327: n->eqn = ep;
1.140 schwarze 328: if (ep->ln > man->last->line)
329: n->flags |= MAN_LINE;
1.144 schwarze 330: man_node_append(man, n);
1.119 schwarze 331: man->next = MAN_NEXT_SIBLING;
1.144 schwarze 332: man_descope(man, ep->ln, ep->pos);
1.101 kristaps 333: }
1.1 kristaps 334:
1.145 schwarze 335: void
1.119 schwarze 336: man_addspan(struct man *man, const struct tbl_span *sp)
1.94 kristaps 337: {
1.100 kristaps 338: struct man_node *n;
1.94 kristaps 339:
1.119 schwarze 340: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.100 kristaps 341: n->span = sp;
1.144 schwarze 342: man_node_append(man, n);
1.119 schwarze 343: man->next = MAN_NEXT_SIBLING;
1.144 schwarze 344: man_descope(man, sp->line, 0);
1.94 kristaps 345: }
346:
1.144 schwarze 347: static void
1.119 schwarze 348: man_descope(struct man *man, int line, int offs)
1.94 kristaps 349: {
350: /*
351: * Co-ordinate what happens with having a next-line scope open:
352: * first close out the element scope (if applicable), then close
353: * out the block scope (also if applicable).
354: */
355:
1.144 schwarze 356: if (man->flags & MAN_ELINE) {
1.119 schwarze 357: man->flags &= ~MAN_ELINE;
1.144 schwarze 358: man_unscope(man, man->last->parent);
1.94 kristaps 359: }
1.144 schwarze 360: if ( ! (man->flags & MAN_BLINE))
361: return;
1.119 schwarze 362: man->flags &= ~MAN_BLINE;
1.144 schwarze 363: man_unscope(man, man->last->parent);
364: man_body_alloc(man, line, offs, man->last->tok);
1.94 kristaps 365: }
366:
1.1 kristaps 367: static int
1.119 schwarze 368: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 369: {
1.61 kristaps 370: int i;
1.60 kristaps 371:
1.35 kristaps 372: /* Literal free-form text whitespace is preserved. */
373:
1.144 schwarze 374: if (man->flags & MAN_LITERAL) {
375: man_word_alloc(man, line, offs, buf + offs);
376: man_descope(man, line, offs);
377: return(1);
1.35 kristaps 378: }
379:
1.144 schwarze 380: for (i = offs; buf[i] == ' '; i++)
1.31 kristaps 381: /* Skip leading whitespace. */ ;
1.48 kristaps 382:
1.121 schwarze 383: /*
384: * Blank lines are ignored right after headings
385: * but add a single vertical space elsewhere.
386: */
387:
1.144 schwarze 388: if (buf[i] == '\0') {
1.61 kristaps 389: /* Allocate a blank entry. */
1.144 schwarze 390: if (man->last->tok != MAN_SH &&
391: man->last->tok != MAN_SS) {
392: man_elem_alloc(man, line, offs, MAN_sp);
1.121 schwarze 393: man->next = MAN_NEXT_SIBLING;
394: }
1.118 schwarze 395: return(1);
1.31 kristaps 396: }
397:
1.129 schwarze 398: /*
1.63 kristaps 399: * Warn if the last un-escaped character is whitespace. Then
1.129 schwarze 400: * strip away the remaining spaces (tabs stay!).
1.63 kristaps 401: */
1.29 kristaps 402:
1.61 kristaps 403: i = (int)strlen(buf);
404: assert(i);
1.49 kristaps 405:
1.63 kristaps 406: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
1.64 kristaps 407: if (i > 1 && '\\' != buf[i - 2])
1.131 schwarze 408: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
409: line, i - 1, NULL);
1.63 kristaps 410:
411: for (--i; i && ' ' == buf[i]; i--)
412: /* Spin back to non-space. */ ;
413:
414: /* Jump ahead of escaped whitespace. */
415: i += '\\' == buf[i] ? 2 : 1;
416:
417: buf[i] = '\0';
418: }
1.144 schwarze 419: man_word_alloc(man, line, offs, buf + offs);
1.65 kristaps 420:
421: /*
422: * End-of-sentence check. If the last character is an unescaped
423: * EOS character, then flag the node as being the end of a
424: * sentence. The front-end will know how to interpret this.
425: */
1.67 kristaps 426:
1.65 kristaps 427: assert(i);
1.122 schwarze 428: if (mandoc_eos(buf, (size_t)i))
1.119 schwarze 429: man->last->flags |= MAN_EOS;
1.31 kristaps 430:
1.144 schwarze 431: man_descope(man, line, offs);
432: return(1);
1.1 kristaps 433: }
434:
1.96 kristaps 435: static int
1.119 schwarze 436: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 437: {
1.34 kristaps 438: struct man_node *n;
1.143 schwarze 439: const char *cp;
1.134 schwarze 440: enum mant tok;
441: int i, ppos;
442: int bline;
1.143 schwarze 443: char mac[5];
1.1 kristaps 444:
1.107 kristaps 445: ppos = offs;
1.9 kristaps 446:
1.56 kristaps 447: /*
1.107 kristaps 448: * Copy the first word into a nil-terminated buffer.
1.143 schwarze 449: * Stop when a space, tab, escape, or eoln is encountered.
1.56 kristaps 450: */
1.62 kristaps 451:
1.107 kristaps 452: i = 0;
1.143 schwarze 453: while (i < 4 && strchr(" \t\\", buf[offs]) == NULL)
1.107 kristaps 454: mac[i++] = buf[offs++];
1.10 kristaps 455:
1.107 kristaps 456: mac[i] = '\0';
1.1 kristaps 457:
1.107 kristaps 458: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 459:
1.143 schwarze 460: if (tok == MAN_MAX) {
1.136 schwarze 461: mandoc_msg(MANDOCERR_MACRO, man->parse,
462: ln, ppos, buf + ppos - 1);
1.12 kristaps 463: return(1);
1.1 kristaps 464: }
465:
1.143 schwarze 466: /* Skip a leading escape sequence or tab. */
467:
468: switch (buf[offs]) {
469: case '\\':
470: cp = buf + offs + 1;
471: mandoc_escape(&cp, NULL, NULL);
472: offs = cp - buf;
473: break;
474: case '\t':
475: offs++;
476: break;
477: default:
478: break;
479: }
480:
481: /* Jump to the next non-whitespace word. */
1.1 kristaps 482:
1.144 schwarze 483: while (buf[offs] && buf[offs] == ' ')
1.107 kristaps 484: offs++;
1.1 kristaps 485:
1.129 schwarze 486: /*
1.62 kristaps 487: * Trailing whitespace. Note that tabs are allowed to be passed
488: * into the parser as "text", so we only warn about spaces here.
489: */
1.48 kristaps 490:
1.144 schwarze 491: if (buf[offs] == '\0' && buf[offs - 1] == ' ')
1.131 schwarze 492: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
493: ln, offs - 1, NULL);
1.48 kristaps 494:
1.129 schwarze 495: /*
1.90 kristaps 496: * Remove prior ELINE macro, as it's being clobbered by a new
1.51 kristaps 497: * macro. Note that NSCOPED macros do not close out ELINE
498: * macros---they don't print text---so we let those slip by.
1.50 kristaps 499: */
1.34 kristaps 500:
1.144 schwarze 501: if ( ! (man_macros[tok].flags & MAN_NSCOPED) &&
1.119 schwarze 502: man->flags & MAN_ELINE) {
503: n = man->last;
1.90 kristaps 504: assert(MAN_TEXT != n->type);
1.51 kristaps 505:
1.90 kristaps 506: /* Remove repeated NSCOPED macros causing ELINE. */
1.51 kristaps 507:
1.144 schwarze 508: if (man_macros[n->tok].flags & MAN_NSCOPED)
1.90 kristaps 509: n = n->parent;
1.51 kristaps 510:
1.133 schwarze 511: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.113 schwarze 512: n->pos, "%s breaks %s", man_macronames[tok],
513: man_macronames[n->tok]);
1.34 kristaps 514:
1.119 schwarze 515: man_node_delete(man, n);
516: man->flags &= ~MAN_ELINE;
1.113 schwarze 517: }
518:
519: /*
520: * Remove prior BLINE macro that is being clobbered.
521: */
1.119 schwarze 522: if ((man->flags & MAN_BLINE) &&
1.144 schwarze 523: (man_macros[tok].flags & MAN_BSCOPE)) {
1.119 schwarze 524: n = man->last;
1.114 joerg 525:
526: /* Might be a text node like 8 in
527: * .TP 8
528: * .SH foo
529: */
1.144 schwarze 530: if (n->type == MAN_TEXT)
1.114 joerg 531: n = n->parent;
1.113 schwarze 532:
533: /* Remove element that didn't end BLINE, if any. */
1.144 schwarze 534: if ( ! (man_macros[n->tok].flags & MAN_BSCOPE))
1.113 schwarze 535: n = n->parent;
536:
1.144 schwarze 537: assert(n->type == MAN_HEAD);
1.113 schwarze 538: n = n->parent;
1.144 schwarze 539: assert(n->type == MAN_BLOCK);
540: assert(man_macros[n->tok].flags & MAN_SCOPED);
1.113 schwarze 541:
1.133 schwarze 542: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.113 schwarze 543: n->pos, "%s breaks %s", man_macronames[tok],
544: man_macronames[n->tok]);
545:
1.119 schwarze 546: man_node_delete(man, n);
547: man->flags &= ~MAN_BLINE;
1.34 kristaps 548: }
549:
1.134 schwarze 550: /* Remember whether we are in next-line scope for a block head. */
1.59 kristaps 551:
1.134 schwarze 552: bline = man->flags & MAN_BLINE;
1.59 kristaps 553:
554: /* Call to handler... */
1.1 kristaps 555:
1.53 kristaps 556: assert(man_macros[tok].fp);
1.144 schwarze 557: (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf);
1.123 schwarze 558:
559: /* In quick mode (for mandocdb), abort after the NAME section. */
560:
1.144 schwarze 561: if (man->quick && tok == MAN_SH) {
1.130 schwarze 562: n = man->last;
1.144 schwarze 563: if (n->type == MAN_BODY &&
1.130 schwarze 564: strcmp(n->prev->child->string, "NAME"))
565: return(2);
566: }
1.1 kristaps 567:
1.129 schwarze 568: /*
1.135 schwarze 569: * If we are in a next-line scope for a block head,
570: * close it out now and switch to the body,
571: * unless the next-line scope is allowed to continue.
1.29 kristaps 572: */
573:
1.135 schwarze 574: if ( ! bline || man->flags & MAN_ELINE ||
575: man_macros[tok].flags & MAN_NSCOPED)
1.29 kristaps 576: return(1);
577:
1.144 schwarze 578: assert(man->flags & MAN_BLINE);
1.119 schwarze 579: man->flags &= ~MAN_BLINE;
1.11 kristaps 580:
1.144 schwarze 581: man_unscope(man, man->last->parent);
582: man_body_alloc(man, ln, ppos, man->last->tok);
583: return(1);
1.1 kristaps 584: }
1.51 kristaps 585:
1.54 kristaps 586: /*
1.119 schwarze 587: * Unlink a node from its context. If "man" is provided, the last parse
1.54 kristaps 588: * point will also be adjusted accordingly.
589: */
590: static void
1.119 schwarze 591: man_node_unlink(struct man *man, struct man_node *n)
1.51 kristaps 592: {
593:
1.54 kristaps 594: /* Adjust siblings. */
595:
596: if (n->prev)
1.51 kristaps 597: n->prev->next = n->next;
1.54 kristaps 598: if (n->next)
599: n->next->prev = n->prev;
600:
601: /* Adjust parent. */
602:
603: if (n->parent) {
604: n->parent->nchild--;
605: if (n->parent->child == n)
606: n->parent->child = n->prev ? n->prev : n->next;
607: }
608:
609: /* Adjust parse point, if applicable. */
610:
1.119 schwarze 611: if (man && man->last == n) {
1.54 kristaps 612: /*XXX: this can occur when bailing from validation. */
613: /*assert(NULL == n->next);*/
614: if (n->prev) {
1.119 schwarze 615: man->last = n->prev;
616: man->next = MAN_NEXT_SIBLING;
1.54 kristaps 617: } else {
1.119 schwarze 618: man->last = n->parent;
619: man->next = MAN_NEXT_CHILD;
1.51 kristaps 620: }
621: }
622:
1.119 schwarze 623: if (man && man->first == n)
624: man->first = NULL;
1.112 kristaps 625: }
626:
627: const struct mparse *
1.119 schwarze 628: man_mparse(const struct man *man)
1.112 kristaps 629: {
630:
1.119 schwarze 631: assert(man && man->parse);
632: return(man->parse);
1.126 schwarze 633: }
634:
635: void
636: man_deroff(char **dest, const struct man_node *n)
637: {
638: char *cp;
639: size_t sz;
640:
1.144 schwarze 641: if (n->type != MAN_TEXT) {
1.126 schwarze 642: for (n = n->child; n; n = n->next)
643: man_deroff(dest, n);
644: return;
645: }
646:
1.127 schwarze 647: /* Skip leading whitespace and escape sequences. */
1.126 schwarze 648:
1.127 schwarze 649: cp = n->string;
650: while ('\0' != *cp) {
651: if ('\\' == *cp) {
652: cp++;
653: mandoc_escape((const char **)&cp, NULL, NULL);
654: } else if (isspace((unsigned char)*cp))
655: cp++;
656: else
1.126 schwarze 657: break;
1.127 schwarze 658: }
1.126 schwarze 659:
660: /* Skip trailing whitespace. */
661:
662: for (sz = strlen(cp); sz; sz--)
663: if (0 == isspace((unsigned char)cp[sz-1]))
664: break;
665:
666: /* Skip empty strings. */
667:
668: if (0 == sz)
669: return;
670:
671: if (NULL == *dest) {
672: *dest = mandoc_strndup(cp, sz);
673: return;
674: }
675:
676: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
677: free(*dest);
678: *dest = cp;
1.23 kristaps 679: }
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