Annotation of mandoc/man.c, Revision 1.149
1.149 ! schwarze 1: /* $Id: man.c,v 1.148 2015/01/24 02:41:49 schwarze Exp $ */
1.1 kristaps 2: /*
1.102 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.149 ! schwarze 4: * Copyright (c) 2013, 2014, 2015 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:
1.149 ! schwarze 51: static void man_alloc1(struct man *);
! 52: static void man_breakscope(struct man *, enum mant);
! 53: static void man_descope(struct man *, int, int);
! 54: static void man_free1(struct man *);
1.129 schwarze 55: static struct man_node *man_node_alloc(struct man *, int, int,
1.53 kristaps 56: enum man_type, enum mant);
1.144 schwarze 57: static void man_node_append(struct man *, struct man_node *);
1.54 kristaps 58: static void man_node_free(struct man_node *);
1.129 schwarze 59: static void man_node_unlink(struct man *,
1.54 kristaps 60: struct man_node *);
1.72 kristaps 61: static int man_ptext(struct man *, int, char *, int);
1.79 kristaps 62: static int man_pmacro(struct man *, int, char *, 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 *
1.146 schwarze 96: man_alloc(struct roff *roff, struct mparse *parse,
97: const char *defos, int quick)
1.1 kristaps 98: {
99: struct man *p;
100:
1.45 kristaps 101: p = mandoc_calloc(1, sizeof(struct man));
1.2 kristaps 102:
1.40 kristaps 103: man_hash_init();
1.104 kristaps 104: p->parse = parse;
1.146 schwarze 105: p->defos = defos;
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:
1.147 schwarze 113: void
1.119 schwarze 114: man_endparse(struct man *man)
1.1 kristaps 115: {
116:
1.144 schwarze 117: 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:
1.141 schwarze 124: if (man->last->type != MAN_EQN || ln > man->last->line)
125: man->flags |= MAN_NEWLINE;
1.97 kristaps 126:
1.119 schwarze 127: return (roff_getcontrol(man->roff, buf, &offs) ?
1.129 schwarze 128: man_pmacro(man, ln, buf, offs) :
129: man_ptext(man, ln, buf, offs));
1.1 kristaps 130: }
131:
1.2 kristaps 132: static void
133: man_free1(struct man *man)
134: {
135:
136: if (man->first)
1.54 kristaps 137: man_node_delete(man, man->first);
1.144 schwarze 138: free(man->meta.title);
139: free(man->meta.source);
140: free(man->meta.date);
141: free(man->meta.vol);
142: free(man->meta.msec);
1.2 kristaps 143: }
144:
1.45 kristaps 145: static void
1.119 schwarze 146: man_alloc1(struct man *man)
1.2 kristaps 147: {
148:
1.119 schwarze 149: memset(&man->meta, 0, sizeof(struct man_meta));
150: man->flags = 0;
151: man->last = mandoc_calloc(1, sizeof(struct man_node));
152: man->first = man->last;
153: man->last->type = MAN_ROOT;
154: man->last->tok = MAN_MAX;
155: man->next = MAN_NEXT_CHILD;
1.2 kristaps 156: }
157:
158:
1.144 schwarze 159: static void
1.1 kristaps 160: man_node_append(struct man *man, struct man_node *p)
161: {
162:
163: assert(man->last);
164: assert(man->first);
1.144 schwarze 165: assert(p->type != MAN_ROOT);
1.1 kristaps 166:
167: switch (man->next) {
1.129 schwarze 168: case MAN_NEXT_SIBLING:
1.1 kristaps 169: man->last->next = p;
170: p->prev = man->last;
171: p->parent = man->last->parent;
172: break;
1.129 schwarze 173: case MAN_NEXT_CHILD:
1.1 kristaps 174: man->last->child = p;
175: p->parent = man->last;
176: break;
177: default:
178: abort();
179: /* NOTREACHED */
180: }
1.129 schwarze 181:
1.54 kristaps 182: assert(p->parent);
1.22 kristaps 183: p->parent->nchild++;
1.1 kristaps 184:
1.29 kristaps 185: switch (p->type) {
1.137 schwarze 186: case MAN_BLOCK:
187: if (p->tok == MAN_SH || p->tok == MAN_SS)
188: man->flags &= ~MAN_LITERAL;
189: break;
1.129 schwarze 190: case MAN_HEAD:
1.144 schwarze 191: assert(p->parent->type == MAN_BLOCK);
1.29 kristaps 192: p->parent->head = p;
193: break;
1.129 schwarze 194: case MAN_BODY:
1.144 schwarze 195: assert(p->parent->type == MAN_BLOCK);
1.29 kristaps 196: p->parent->body = p;
197: break;
198: default:
199: break;
200: }
201:
1.2 kristaps 202: man->last = p;
203:
1.1 kristaps 204: switch (p->type) {
1.129 schwarze 205: case MAN_TBL:
1.94 kristaps 206: /* FALLTHROUGH */
1.129 schwarze 207: case MAN_TEXT:
1.144 schwarze 208: man_valid_post(man);
1.1 kristaps 209: break;
210: default:
211: break;
212: }
213: }
214:
215: static struct man_node *
1.129 schwarze 216: man_node_alloc(struct man *man, int line, int pos,
1.97 kristaps 217: enum man_type type, enum mant tok)
1.1 kristaps 218: {
219: struct man_node *p;
220:
1.45 kristaps 221: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 222: p->line = line;
223: p->pos = pos;
224: p->type = type;
1.16 kristaps 225: p->tok = tok;
1.97 kristaps 226:
1.144 schwarze 227: if (man->flags & MAN_NEWLINE)
1.97 kristaps 228: p->flags |= MAN_LINE;
1.119 schwarze 229: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 230: return(p);
231: }
232:
1.144 schwarze 233: void
1.119 schwarze 234: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 235: {
236: struct man_node *p;
237:
1.119 schwarze 238: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
1.144 schwarze 239: man_node_append(man, p);
1.119 schwarze 240: man->next = MAN_NEXT_CHILD;
1.106 kristaps 241: }
242:
1.144 schwarze 243: void
1.119 schwarze 244: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 245: {
246: struct man_node *p;
247:
1.119 schwarze 248: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
1.144 schwarze 249: man_node_append(man, p);
1.119 schwarze 250: man->next = MAN_NEXT_CHILD;
1.29 kristaps 251: }
252:
1.144 schwarze 253: void
1.119 schwarze 254: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 255: {
256: struct man_node *p;
257:
1.119 schwarze 258: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
1.144 schwarze 259: man_node_append(man, p);
1.119 schwarze 260: man->next = MAN_NEXT_CHILD;
1.29 kristaps 261: }
262:
1.144 schwarze 263: void
1.119 schwarze 264: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.29 kristaps 265: {
266: struct man_node *p;
267:
1.119 schwarze 268: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
1.144 schwarze 269: man_node_append(man, p);
1.119 schwarze 270: man->next = MAN_NEXT_CHILD;
1.29 kristaps 271: }
272:
1.144 schwarze 273: void
1.119 schwarze 274: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 275: {
1.31 kristaps 276: struct man_node *n;
1.1 kristaps 277:
1.119 schwarze 278: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
279: n->string = roff_strdup(man->roff, word);
1.144 schwarze 280: man_node_append(man, n);
1.119 schwarze 281: man->next = MAN_NEXT_SIBLING;
1.142 schwarze 282: }
283:
284: void
285: man_word_append(struct man *man, const char *word)
286: {
287: struct man_node *n;
288: char *addstr, *newstr;
289:
290: n = man->last;
291: addstr = roff_strdup(man->roff, word);
292: mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
293: free(addstr);
294: free(n->string);
295: n->string = newstr;
296: man->next = MAN_NEXT_SIBLING;
1.1 kristaps 297: }
298:
1.54 kristaps 299: /*
300: * Free all of the resources held by a node. This does NOT unlink a
301: * node from its context; for that, see man_node_unlink().
302: */
303: static void
1.1 kristaps 304: man_node_free(struct man_node *p)
305: {
306:
1.144 schwarze 307: free(p->string);
1.1 kristaps 308: free(p);
309: }
310:
311: void
1.119 schwarze 312: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 313: {
314:
1.54 kristaps 315: while (p->child)
1.119 schwarze 316: man_node_delete(man, p->child);
1.54 kristaps 317:
1.119 schwarze 318: man_node_unlink(man, p);
1.1 kristaps 319: man_node_free(p);
320: }
321:
1.145 schwarze 322: void
1.119 schwarze 323: man_addeqn(struct man *man, const struct eqn *ep)
1.101 kristaps 324: {
325: struct man_node *n;
326:
1.119 schwarze 327: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.101 kristaps 328: n->eqn = ep;
1.140 schwarze 329: if (ep->ln > man->last->line)
330: n->flags |= MAN_LINE;
1.144 schwarze 331: man_node_append(man, n);
1.119 schwarze 332: man->next = MAN_NEXT_SIBLING;
1.144 schwarze 333: man_descope(man, ep->ln, ep->pos);
1.101 kristaps 334: }
1.1 kristaps 335:
1.145 schwarze 336: void
1.119 schwarze 337: man_addspan(struct man *man, const struct tbl_span *sp)
1.94 kristaps 338: {
1.100 kristaps 339: struct man_node *n;
1.94 kristaps 340:
1.149 ! schwarze 341: man_breakscope(man, MAN_MAX);
1.119 schwarze 342: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.100 kristaps 343: n->span = sp;
1.144 schwarze 344: man_node_append(man, n);
1.119 schwarze 345: man->next = MAN_NEXT_SIBLING;
1.144 schwarze 346: man_descope(man, sp->line, 0);
1.94 kristaps 347: }
348:
1.144 schwarze 349: static void
1.119 schwarze 350: man_descope(struct man *man, int line, int offs)
1.94 kristaps 351: {
352: /*
353: * Co-ordinate what happens with having a next-line scope open:
354: * first close out the element scope (if applicable), then close
355: * out the block scope (also if applicable).
356: */
357:
1.144 schwarze 358: if (man->flags & MAN_ELINE) {
1.119 schwarze 359: man->flags &= ~MAN_ELINE;
1.144 schwarze 360: man_unscope(man, man->last->parent);
1.94 kristaps 361: }
1.144 schwarze 362: if ( ! (man->flags & MAN_BLINE))
363: return;
1.119 schwarze 364: man->flags &= ~MAN_BLINE;
1.144 schwarze 365: man_unscope(man, man->last->parent);
366: man_body_alloc(man, line, offs, man->last->tok);
1.94 kristaps 367: }
368:
1.1 kristaps 369: static int
1.119 schwarze 370: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 371: {
1.61 kristaps 372: int i;
1.60 kristaps 373:
1.35 kristaps 374: /* Literal free-form text whitespace is preserved. */
375:
1.144 schwarze 376: if (man->flags & MAN_LITERAL) {
377: man_word_alloc(man, line, offs, buf + offs);
378: man_descope(man, line, offs);
379: return(1);
1.35 kristaps 380: }
381:
1.144 schwarze 382: for (i = offs; buf[i] == ' '; i++)
1.31 kristaps 383: /* Skip leading whitespace. */ ;
1.48 kristaps 384:
1.121 schwarze 385: /*
386: * Blank lines are ignored right after headings
387: * but add a single vertical space elsewhere.
388: */
389:
1.144 schwarze 390: if (buf[i] == '\0') {
1.61 kristaps 391: /* Allocate a blank entry. */
1.144 schwarze 392: if (man->last->tok != MAN_SH &&
393: man->last->tok != MAN_SS) {
394: man_elem_alloc(man, line, offs, MAN_sp);
1.121 schwarze 395: man->next = MAN_NEXT_SIBLING;
396: }
1.118 schwarze 397: return(1);
1.31 kristaps 398: }
399:
1.129 schwarze 400: /*
1.63 kristaps 401: * Warn if the last un-escaped character is whitespace. Then
1.129 schwarze 402: * strip away the remaining spaces (tabs stay!).
1.63 kristaps 403: */
1.29 kristaps 404:
1.61 kristaps 405: i = (int)strlen(buf);
406: assert(i);
1.49 kristaps 407:
1.63 kristaps 408: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
1.64 kristaps 409: if (i > 1 && '\\' != buf[i - 2])
1.131 schwarze 410: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
411: line, i - 1, NULL);
1.63 kristaps 412:
413: for (--i; i && ' ' == buf[i]; i--)
414: /* Spin back to non-space. */ ;
415:
416: /* Jump ahead of escaped whitespace. */
417: i += '\\' == buf[i] ? 2 : 1;
418:
419: buf[i] = '\0';
420: }
1.144 schwarze 421: man_word_alloc(man, line, offs, buf + offs);
1.65 kristaps 422:
423: /*
424: * End-of-sentence check. If the last character is an unescaped
425: * EOS character, then flag the node as being the end of a
426: * sentence. The front-end will know how to interpret this.
427: */
1.67 kristaps 428:
1.65 kristaps 429: assert(i);
1.122 schwarze 430: if (mandoc_eos(buf, (size_t)i))
1.119 schwarze 431: man->last->flags |= MAN_EOS;
1.31 kristaps 432:
1.144 schwarze 433: man_descope(man, line, offs);
434: return(1);
1.1 kristaps 435: }
436:
1.96 kristaps 437: static int
1.119 schwarze 438: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 439: {
1.34 kristaps 440: struct man_node *n;
1.143 schwarze 441: const char *cp;
1.134 schwarze 442: enum mant tok;
443: int i, ppos;
444: int bline;
1.143 schwarze 445: char mac[5];
1.1 kristaps 446:
1.107 kristaps 447: ppos = offs;
1.9 kristaps 448:
1.56 kristaps 449: /*
1.107 kristaps 450: * Copy the first word into a nil-terminated buffer.
1.143 schwarze 451: * Stop when a space, tab, escape, or eoln is encountered.
1.56 kristaps 452: */
1.62 kristaps 453:
1.107 kristaps 454: i = 0;
1.143 schwarze 455: while (i < 4 && strchr(" \t\\", buf[offs]) == NULL)
1.107 kristaps 456: mac[i++] = buf[offs++];
1.10 kristaps 457:
1.107 kristaps 458: mac[i] = '\0';
1.1 kristaps 459:
1.107 kristaps 460: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 461:
1.143 schwarze 462: if (tok == MAN_MAX) {
1.136 schwarze 463: mandoc_msg(MANDOCERR_MACRO, man->parse,
464: ln, ppos, buf + ppos - 1);
1.12 kristaps 465: return(1);
1.1 kristaps 466: }
467:
1.143 schwarze 468: /* Skip a leading escape sequence or tab. */
469:
470: switch (buf[offs]) {
471: case '\\':
472: cp = buf + offs + 1;
473: mandoc_escape(&cp, NULL, NULL);
474: offs = cp - buf;
475: break;
476: case '\t':
477: offs++;
478: break;
479: default:
480: break;
481: }
482:
483: /* Jump to the next non-whitespace word. */
1.1 kristaps 484:
1.144 schwarze 485: while (buf[offs] && buf[offs] == ' ')
1.107 kristaps 486: offs++;
1.1 kristaps 487:
1.129 schwarze 488: /*
1.62 kristaps 489: * Trailing whitespace. Note that tabs are allowed to be passed
490: * into the parser as "text", so we only warn about spaces here.
491: */
1.48 kristaps 492:
1.144 schwarze 493: if (buf[offs] == '\0' && buf[offs - 1] == ' ')
1.131 schwarze 494: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
495: ln, offs - 1, NULL);
1.48 kristaps 496:
1.129 schwarze 497: /*
1.149 ! schwarze 498: * Some macros break next-line scopes; otherwise, remember
! 499: * whether we are in next-line scope for a block head.
1.50 kristaps 500: */
1.34 kristaps 501:
1.149 ! schwarze 502: man_breakscope(man, tok);
1.134 schwarze 503: bline = man->flags & MAN_BLINE;
1.59 kristaps 504:
505: /* Call to handler... */
1.1 kristaps 506:
1.53 kristaps 507: assert(man_macros[tok].fp);
1.144 schwarze 508: (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf);
1.123 schwarze 509:
510: /* In quick mode (for mandocdb), abort after the NAME section. */
511:
1.144 schwarze 512: if (man->quick && tok == MAN_SH) {
1.130 schwarze 513: n = man->last;
1.144 schwarze 514: if (n->type == MAN_BODY &&
1.130 schwarze 515: strcmp(n->prev->child->string, "NAME"))
516: return(2);
517: }
1.1 kristaps 518:
1.129 schwarze 519: /*
1.135 schwarze 520: * If we are in a next-line scope for a block head,
521: * close it out now and switch to the body,
522: * unless the next-line scope is allowed to continue.
1.29 kristaps 523: */
524:
1.135 schwarze 525: if ( ! bline || man->flags & MAN_ELINE ||
526: man_macros[tok].flags & MAN_NSCOPED)
1.29 kristaps 527: return(1);
528:
1.144 schwarze 529: assert(man->flags & MAN_BLINE);
1.119 schwarze 530: man->flags &= ~MAN_BLINE;
1.11 kristaps 531:
1.144 schwarze 532: man_unscope(man, man->last->parent);
533: man_body_alloc(man, ln, ppos, man->last->tok);
534: return(1);
1.149 ! schwarze 535: }
! 536:
! 537: void
! 538: man_breakscope(struct man *man, enum mant tok)
! 539: {
! 540: struct man_node *n;
! 541:
! 542: /*
! 543: * An element next line scope is open,
! 544: * and the new macro is not allowed inside elements.
! 545: * Delete the element that is being broken.
! 546: */
! 547:
! 548: if (man->flags & MAN_ELINE && (tok == MAN_MAX ||
! 549: ! (man_macros[tok].flags & MAN_NSCOPED))) {
! 550: n = man->last;
! 551: assert(n->type != MAN_TEXT);
! 552: if (man_macros[n->tok].flags & MAN_NSCOPED)
! 553: n = n->parent;
! 554:
! 555: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
! 556: n->line, n->pos, "%s breaks %s",
! 557: tok == MAN_MAX ? "TS" : man_macronames[tok],
! 558: man_macronames[n->tok]);
! 559:
! 560: man_node_delete(man, n);
! 561: man->flags &= ~MAN_ELINE;
! 562: }
! 563:
! 564: /*
! 565: * A block header next line scope is open,
! 566: * and the new macro is not allowed inside block headers.
! 567: * Delete the block that is being broken.
! 568: */
! 569:
! 570: if (man->flags & MAN_BLINE && (tok == MAN_MAX ||
! 571: man_macros[tok].flags & MAN_BSCOPE)) {
! 572: n = man->last;
! 573: if (n->type == MAN_TEXT)
! 574: n = n->parent;
! 575: if ( ! (man_macros[n->tok].flags & MAN_BSCOPE))
! 576: n = n->parent;
! 577:
! 578: assert(n->type == MAN_HEAD);
! 579: n = n->parent;
! 580: assert(n->type == MAN_BLOCK);
! 581: assert(man_macros[n->tok].flags & MAN_SCOPED);
! 582:
! 583: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
! 584: n->line, n->pos, "%s breaks %s",
! 585: tok == MAN_MAX ? "TS" : man_macronames[tok],
! 586: man_macronames[n->tok]);
! 587:
! 588: man_node_delete(man, n);
! 589: man->flags &= ~MAN_BLINE;
! 590: }
1.1 kristaps 591: }
1.51 kristaps 592:
1.54 kristaps 593: /*
1.119 schwarze 594: * Unlink a node from its context. If "man" is provided, the last parse
1.54 kristaps 595: * point will also be adjusted accordingly.
596: */
597: static void
1.119 schwarze 598: man_node_unlink(struct man *man, struct man_node *n)
1.51 kristaps 599: {
600:
1.54 kristaps 601: /* Adjust siblings. */
602:
603: if (n->prev)
1.51 kristaps 604: n->prev->next = n->next;
1.54 kristaps 605: if (n->next)
606: n->next->prev = n->prev;
607:
608: /* Adjust parent. */
609:
610: if (n->parent) {
611: n->parent->nchild--;
612: if (n->parent->child == n)
613: n->parent->child = n->prev ? n->prev : n->next;
614: }
615:
616: /* Adjust parse point, if applicable. */
617:
1.119 schwarze 618: if (man && man->last == n) {
1.54 kristaps 619: /*XXX: this can occur when bailing from validation. */
620: /*assert(NULL == n->next);*/
621: if (n->prev) {
1.119 schwarze 622: man->last = n->prev;
623: man->next = MAN_NEXT_SIBLING;
1.54 kristaps 624: } else {
1.119 schwarze 625: man->last = n->parent;
626: man->next = MAN_NEXT_CHILD;
1.51 kristaps 627: }
628: }
629:
1.119 schwarze 630: if (man && man->first == n)
631: man->first = NULL;
1.112 kristaps 632: }
633:
634: const struct mparse *
1.119 schwarze 635: man_mparse(const struct man *man)
1.112 kristaps 636: {
637:
1.119 schwarze 638: assert(man && man->parse);
639: return(man->parse);
1.126 schwarze 640: }
641:
642: void
643: man_deroff(char **dest, const struct man_node *n)
644: {
645: char *cp;
646: size_t sz;
647:
1.144 schwarze 648: if (n->type != MAN_TEXT) {
1.126 schwarze 649: for (n = n->child; n; n = n->next)
650: man_deroff(dest, n);
651: return;
652: }
653:
1.127 schwarze 654: /* Skip leading whitespace and escape sequences. */
1.126 schwarze 655:
1.127 schwarze 656: cp = n->string;
657: while ('\0' != *cp) {
658: if ('\\' == *cp) {
659: cp++;
660: mandoc_escape((const char **)&cp, NULL, NULL);
661: } else if (isspace((unsigned char)*cp))
662: cp++;
663: else
1.126 schwarze 664: break;
1.127 schwarze 665: }
1.126 schwarze 666:
667: /* Skip trailing whitespace. */
668:
669: for (sz = strlen(cp); sz; sz--)
670: if (0 == isspace((unsigned char)cp[sz-1]))
671: break;
672:
673: /* Skip empty strings. */
674:
675: if (0 == sz)
676: return;
677:
678: if (NULL == *dest) {
679: *dest = mandoc_strndup(cp, sz);
680: return;
681: }
682:
683: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
684: free(*dest);
685: *dest = cp;
1.23 kristaps 686: }
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