Annotation of src/usr.bin/mandoc/man.c, Revision 1.87
1.87 ! schwarze 1: /* $OpenBSD$ */
1.1 kristaps 2: /*
1.52 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.73 schwarze 4: * Copyright (c) 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
1.74 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
1.2 schwarze 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: *
1.2 schwarze 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: */
1.14 schwarze 19: #include <sys/types.h>
20:
1.1 kristaps 21: #include <assert.h>
1.76 schwarze 22: #include <ctype.h>
1.1 kristaps 23: #include <stdarg.h>
24: #include <stdlib.h>
25: #include <stdio.h>
26: #include <string.h>
27:
1.59 schwarze 28: #include "man.h"
1.33 schwarze 29: #include "mandoc.h"
1.75 schwarze 30: #include "mandoc_aux.h"
1.1 kristaps 31: #include "libman.h"
1.16 schwarze 32: #include "libmandoc.h"
1.1 kristaps 33:
1.79 schwarze 34: const char *const __man_macronames[MAN_MAX] = {
1.3 schwarze 35: "br", "TH", "SH", "SS",
1.79 schwarze 36: "TP", "LP", "PP", "P",
1.1 kristaps 37: "IP", "HP", "SM", "SB",
38: "BI", "IB", "BR", "RB",
39: "R", "B", "I", "IR",
1.50 schwarze 40: "RI", "na", "sp", "nf",
41: "fi", "RE", "RS", "DT",
42: "UC", "PD", "AT", "in",
1.70 schwarze 43: "ft", "OP", "EX", "EE",
1.78 schwarze 44: "UR", "UE", "ll"
1.1 kristaps 45: };
46:
47: const char * const *man_macronames = __man_macronames;
48:
1.79 schwarze 49: static struct man_node *man_node_alloc(struct man *, int, int,
1.22 schwarze 50: enum man_type, enum mant);
1.79 schwarze 51: static int man_node_append(struct man *,
1.1 kristaps 52: struct man_node *);
1.22 schwarze 53: static void man_node_free(struct man_node *);
1.79 schwarze 54: static void man_node_unlink(struct man *,
1.22 schwarze 55: struct man_node *);
1.31 schwarze 56: static int man_ptext(struct man *, int, char *, int);
57: static int man_pmacro(struct man *, int, char *, int);
1.1 kristaps 58: static void man_free1(struct man *);
1.16 schwarze 59: static void man_alloc1(struct man *);
1.52 schwarze 60: static int man_descope(struct man *, int, int);
1.1 kristaps 61:
62:
63: const struct man_node *
1.69 schwarze 64: man_node(const struct man *man)
1.1 kristaps 65: {
66:
1.69 schwarze 67: return(man->first);
1.1 kristaps 68: }
69:
70: const struct man_meta *
1.69 schwarze 71: man_meta(const struct man *man)
1.1 kristaps 72: {
73:
1.69 schwarze 74: return(&man->meta);
1.1 kristaps 75: }
76:
1.16 schwarze 77: void
1.1 kristaps 78: man_reset(struct man *man)
79: {
80:
81: man_free1(man);
1.16 schwarze 82: man_alloc1(man);
1.1 kristaps 83: }
84:
85: void
86: man_free(struct man *man)
87: {
88:
89: man_free1(man);
90: free(man);
91: }
92:
93: struct man *
1.73 schwarze 94: man_alloc(struct roff *roff, struct mparse *parse, int quick)
1.1 kristaps 95: {
96: struct man *p;
97:
1.16 schwarze 98: p = mandoc_calloc(1, sizeof(struct man));
1.1 kristaps 99:
1.13 schwarze 100: man_hash_init();
1.59 schwarze 101: p->parse = parse;
1.73 schwarze 102: p->quick = quick;
1.60 schwarze 103: p->roff = roff;
1.16 schwarze 104:
105: man_alloc1(p);
1.1 kristaps 106: return(p);
107: }
108:
109: int
1.69 schwarze 110: man_endparse(struct man *man)
1.1 kristaps 111: {
112:
1.84 schwarze 113: return(man_macroend(man));
1.1 kristaps 114: }
115:
116: int
1.69 schwarze 117: man_parseln(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 118: {
1.25 schwarze 119:
1.69 schwarze 120: man->flags |= MAN_NEWLINE;
1.54 schwarze 121:
1.69 schwarze 122: return (roff_getcontrol(man->roff, buf, &offs) ?
1.79 schwarze 123: man_pmacro(man, ln, buf, offs) :
124: man_ptext(man, ln, buf, offs));
1.1 kristaps 125: }
126:
127: static void
128: man_free1(struct man *man)
129: {
130:
131: if (man->first)
1.22 schwarze 132: man_node_delete(man, man->first);
1.1 kristaps 133: if (man->meta.title)
134: free(man->meta.title);
135: if (man->meta.source)
136: free(man->meta.source);
1.56 schwarze 137: if (man->meta.date)
138: free(man->meta.date);
1.1 kristaps 139: if (man->meta.vol)
140: free(man->meta.vol);
1.29 schwarze 141: if (man->meta.msec)
142: free(man->meta.msec);
1.1 kristaps 143: }
144:
1.16 schwarze 145: static void
1.69 schwarze 146: man_alloc1(struct man *man)
1.1 kristaps 147: {
148:
1.69 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;
1.1 kristaps 156: }
157:
158:
159: static int
160: man_node_append(struct man *man, struct man_node *p)
161: {
162:
163: assert(man->last);
164: assert(man->first);
165: assert(MAN_ROOT != p->type);
166:
167: switch (man->next) {
1.79 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;
1.79 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: }
1.79 schwarze 181:
1.22 schwarze 182: assert(p->parent);
1.5 schwarze 183: p->parent->nchild++;
1.1 kristaps 184:
1.9 schwarze 185: switch (p->type) {
1.86 schwarze 186: case MAN_BLOCK:
187: if (p->tok == MAN_SH || p->tok == MAN_SS)
188: man->flags &= ~MAN_LITERAL;
189: break;
1.79 schwarze 190: case MAN_HEAD:
1.9 schwarze 191: assert(MAN_BLOCK == p->parent->type);
192: p->parent->head = p;
193: break;
1.79 schwarze 194: case MAN_TAIL:
1.59 schwarze 195: assert(MAN_BLOCK == p->parent->type);
196: p->parent->tail = p;
197: break;
1.79 schwarze 198: case MAN_BODY:
1.9 schwarze 199: assert(MAN_BLOCK == p->parent->type);
200: p->parent->body = p;
201: break;
202: default:
203: break;
204: }
205:
1.1 kristaps 206: man->last = p;
207:
208: switch (p->type) {
1.79 schwarze 209: case MAN_TBL:
1.52 schwarze 210: /* FALLTHROUGH */
1.79 schwarze 211: case MAN_TEXT:
1.1 kristaps 212: if ( ! man_valid_post(man))
213: return(0);
214: break;
215: default:
216: break;
217: }
218:
219: return(1);
220: }
221:
222: static struct man_node *
1.79 schwarze 223: man_node_alloc(struct man *man, int line, int pos,
1.54 schwarze 224: enum man_type type, enum mant tok)
1.1 kristaps 225: {
226: struct man_node *p;
227:
1.16 schwarze 228: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 229: p->line = line;
230: p->pos = pos;
231: p->type = type;
232: p->tok = tok;
1.54 schwarze 233:
1.69 schwarze 234: if (MAN_NEWLINE & man->flags)
1.54 schwarze 235: p->flags |= MAN_LINE;
1.69 schwarze 236: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 237: return(p);
238: }
239:
240: int
1.69 schwarze 241: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 242: {
243: struct man_node *p;
244:
1.69 schwarze 245: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
246: if ( ! man_node_append(man, p))
1.10 schwarze 247: return(0);
1.69 schwarze 248: man->next = MAN_NEXT_CHILD;
1.10 schwarze 249: return(1);
1.1 kristaps 250: }
251:
252: int
1.69 schwarze 253: man_tail_alloc(struct man *man, int line, int pos, enum mant tok)
1.59 schwarze 254: {
255: struct man_node *p;
256:
1.69 schwarze 257: p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
258: if ( ! man_node_append(man, p))
1.59 schwarze 259: return(0);
1.69 schwarze 260: man->next = MAN_NEXT_CHILD;
1.59 schwarze 261: return(1);
262: }
263:
264: int
1.69 schwarze 265: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 266: {
267: struct man_node *p;
268:
1.69 schwarze 269: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
270: if ( ! man_node_append(man, p))
1.9 schwarze 271: return(0);
1.69 schwarze 272: man->next = MAN_NEXT_CHILD;
1.9 schwarze 273: return(1);
274: }
275:
276: int
1.69 schwarze 277: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 278: {
279: struct man_node *p;
280:
1.69 schwarze 281: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
282: if ( ! man_node_append(man, p))
1.9 schwarze 283: return(0);
1.69 schwarze 284: man->next = MAN_NEXT_CHILD;
1.9 schwarze 285: return(1);
286: }
287:
288: int
1.69 schwarze 289: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 290: {
291: struct man_node *p;
292:
1.69 schwarze 293: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
294: if ( ! man_node_append(man, p))
1.9 schwarze 295: return(0);
1.69 schwarze 296: man->next = MAN_NEXT_CHILD;
1.9 schwarze 297: return(1);
298: }
299:
1.27 schwarze 300: int
1.69 schwarze 301: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 302: {
1.10 schwarze 303: struct man_node *n;
1.1 kristaps 304:
1.69 schwarze 305: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
306: n->string = roff_strdup(man->roff, word);
1.10 schwarze 307:
1.69 schwarze 308: if ( ! man_node_append(man, n))
1.1 kristaps 309: return(0);
1.27 schwarze 310:
1.69 schwarze 311: man->next = MAN_NEXT_SIBLING;
1.10 schwarze 312: return(1);
313: }
314:
1.22 schwarze 315: /*
316: * Free all of the resources held by a node. This does NOT unlink a
317: * node from its context; for that, see man_node_unlink().
318: */
319: static void
1.1 kristaps 320: man_node_free(struct man_node *p)
321: {
322:
323: if (p->string)
324: free(p->string);
325: free(p);
326: }
327:
328: void
1.69 schwarze 329: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 330: {
331:
1.22 schwarze 332: while (p->child)
1.69 schwarze 333: man_node_delete(man, p->child);
1.22 schwarze 334:
1.69 schwarze 335: man_node_unlink(man, p);
1.1 kristaps 336: man_node_free(p);
337: }
338:
1.57 schwarze 339: int
1.69 schwarze 340: man_addeqn(struct man *man, const struct eqn *ep)
1.57 schwarze 341: {
342: struct man_node *n;
343:
1.69 schwarze 344: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.57 schwarze 345: n->eqn = ep;
346:
1.69 schwarze 347: if ( ! man_node_append(man, n))
1.57 schwarze 348: return(0);
349:
1.69 schwarze 350: man->next = MAN_NEXT_SIBLING;
351: return(man_descope(man, ep->ln, ep->pos));
1.57 schwarze 352: }
1.1 kristaps 353:
1.52 schwarze 354: int
1.69 schwarze 355: man_addspan(struct man *man, const struct tbl_span *sp)
1.52 schwarze 356: {
1.55 schwarze 357: struct man_node *n;
1.52 schwarze 358:
1.69 schwarze 359: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.55 schwarze 360: n->span = sp;
361:
1.69 schwarze 362: if ( ! man_node_append(man, n))
1.52 schwarze 363: return(0);
1.55 schwarze 364:
1.69 schwarze 365: man->next = MAN_NEXT_SIBLING;
366: return(man_descope(man, sp->line, 0));
1.52 schwarze 367: }
368:
369: static int
1.69 schwarze 370: man_descope(struct man *man, int line, int offs)
1.52 schwarze 371: {
372: /*
373: * Co-ordinate what happens with having a next-line scope open:
374: * first close out the element scope (if applicable), then close
375: * out the block scope (also if applicable).
376: */
377:
1.69 schwarze 378: if (MAN_ELINE & man->flags) {
379: man->flags &= ~MAN_ELINE;
1.82 schwarze 380: if ( ! man_unscope(man, man->last->parent))
1.52 schwarze 381: return(0);
382: }
383:
1.69 schwarze 384: if ( ! (MAN_BLINE & man->flags))
1.52 schwarze 385: return(1);
1.69 schwarze 386: man->flags &= ~MAN_BLINE;
1.52 schwarze 387:
1.82 schwarze 388: if ( ! man_unscope(man, man->last->parent))
1.52 schwarze 389: return(0);
1.69 schwarze 390: return(man_body_alloc(man, line, offs, man->last->tok));
1.52 schwarze 391: }
392:
1.1 kristaps 393: static int
1.69 schwarze 394: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 395: {
1.27 schwarze 396: int i;
1.26 schwarze 397:
1.10 schwarze 398: /* Literal free-form text whitespace is preserved. */
399:
1.69 schwarze 400: if (MAN_LITERAL & man->flags) {
401: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.10 schwarze 402: return(0);
1.69 schwarze 403: return(man_descope(man, line, offs));
1.10 schwarze 404: }
405:
1.31 schwarze 406: for (i = offs; ' ' == buf[i]; i++)
1.10 schwarze 407: /* Skip leading whitespace. */ ;
1.18 schwarze 408:
1.71 schwarze 409: /*
410: * Blank lines are ignored right after headings
411: * but add a single vertical space elsewhere.
412: */
413:
1.18 schwarze 414: if ('\0' == buf[i]) {
1.27 schwarze 415: /* Allocate a blank entry. */
1.71 schwarze 416: if (MAN_SH != man->last->tok &&
417: MAN_SS != man->last->tok) {
418: if ( ! man_elem_alloc(man, line, offs, MAN_sp))
419: return(0);
420: man->next = MAN_NEXT_SIBLING;
421: }
1.68 schwarze 422: return(1);
1.10 schwarze 423: }
1.1 kristaps 424:
1.79 schwarze 425: /*
1.27 schwarze 426: * Warn if the last un-escaped character is whitespace. Then
1.79 schwarze 427: * strip away the remaining spaces (tabs stay!).
1.27 schwarze 428: */
1.18 schwarze 429:
1.27 schwarze 430: i = (int)strlen(buf);
431: assert(i);
1.18 schwarze 432:
1.27 schwarze 433: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
434: if (i > 1 && '\\' != buf[i - 2])
1.81 schwarze 435: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
436: line, i - 1, NULL);
1.18 schwarze 437:
1.27 schwarze 438: for (--i; i && ' ' == buf[i]; i--)
439: /* Spin back to non-space. */ ;
1.10 schwarze 440:
1.27 schwarze 441: /* Jump ahead of escaped whitespace. */
442: i += '\\' == buf[i] ? 2 : 1;
1.18 schwarze 443:
1.27 schwarze 444: buf[i] = '\0';
1.10 schwarze 445: }
1.9 schwarze 446:
1.69 schwarze 447: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.1 kristaps 448: return(0);
1.28 schwarze 449:
450: /*
451: * End-of-sentence check. If the last character is an unescaped
452: * EOS character, then flag the node as being the end of a
453: * sentence. The front-end will know how to interpret this.
454: */
455:
456: assert(i);
1.72 schwarze 457: if (mandoc_eos(buf, (size_t)i))
1.69 schwarze 458: man->last->flags |= MAN_EOS;
1.10 schwarze 459:
1.69 schwarze 460: return(man_descope(man, line, offs));
1.1 kristaps 461: }
462:
1.53 schwarze 463: static int
1.69 schwarze 464: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 465: {
1.10 schwarze 466: char mac[5];
467: struct man_node *n;
1.84 schwarze 468: enum mant tok;
469: int i, ppos;
470: int bline;
1.1 kristaps 471:
1.59 schwarze 472: ppos = offs;
1.1 kristaps 473:
1.23 schwarze 474: /*
1.59 schwarze 475: * Copy the first word into a nil-terminated buffer.
476: * Stop copying when a tab, space, or eoln is encountered.
1.23 schwarze 477: */
1.27 schwarze 478:
1.59 schwarze 479: i = 0;
1.79 schwarze 480: while (i < 4 && '\0' != buf[offs] && ' ' != buf[offs] &&
481: '\t' != buf[offs])
1.59 schwarze 482: mac[i++] = buf[offs++];
1.1 kristaps 483:
1.59 schwarze 484: mac[i] = '\0';
1.1 kristaps 485:
1.59 schwarze 486: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 487:
1.40 schwarze 488: if (MAN_MAX == tok) {
1.85 schwarze 489: mandoc_msg(MANDOCERR_MACRO, man->parse,
490: ln, ppos, buf + ppos - 1);
1.1 kristaps 491: return(1);
492: }
493:
494: /* The macro is sane. Jump to the next word. */
495:
1.59 schwarze 496: while (buf[offs] && ' ' == buf[offs])
497: offs++;
1.18 schwarze 498:
1.79 schwarze 499: /*
1.27 schwarze 500: * Trailing whitespace. Note that tabs are allowed to be passed
501: * into the parser as "text", so we only warn about spaces here.
502: */
1.18 schwarze 503:
1.59 schwarze 504: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.81 schwarze 505: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
506: ln, offs - 1, NULL);
1.1 kristaps 507:
1.79 schwarze 508: /*
1.46 schwarze 509: * Remove prior ELINE macro, as it's being clobbered by a new
1.21 schwarze 510: * macro. Note that NSCOPED macros do not close out ELINE
511: * macros---they don't print text---so we let those slip by.
512: */
513:
1.22 schwarze 514: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.69 schwarze 515: man->flags & MAN_ELINE) {
516: n = man->last;
1.46 schwarze 517: assert(MAN_TEXT != n->type);
1.21 schwarze 518:
1.49 schwarze 519: /* Remove repeated NSCOPED macros causing ELINE. */
520:
1.46 schwarze 521: if (MAN_NSCOPED & man_macros[n->tok].flags)
522: n = n->parent;
1.21 schwarze 523:
1.83 schwarze 524: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.63 schwarze 525: n->pos, "%s breaks %s", man_macronames[tok],
526: man_macronames[n->tok]);
1.10 schwarze 527:
1.69 schwarze 528: man_node_delete(man, n);
529: man->flags &= ~MAN_ELINE;
1.63 schwarze 530: }
531:
532: /*
533: * Remove prior BLINE macro that is being clobbered.
534: */
1.69 schwarze 535: if ((man->flags & MAN_BLINE) &&
1.63 schwarze 536: (MAN_BSCOPE & man_macros[tok].flags)) {
1.69 schwarze 537: n = man->last;
1.64 schwarze 538:
539: /* Might be a text node like 8 in
540: * .TP 8
541: * .SH foo
542: */
543: if (MAN_TEXT == n->type)
544: n = n->parent;
1.63 schwarze 545:
546: /* Remove element that didn't end BLINE, if any. */
547: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
548: n = n->parent;
549:
550: assert(MAN_HEAD == n->type);
551: n = n->parent;
552: assert(MAN_BLOCK == n->type);
553: assert(MAN_SCOPED & man_macros[n->tok].flags);
554:
1.83 schwarze 555: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.63 schwarze 556: n->pos, "%s breaks %s", man_macronames[tok],
557: man_macronames[n->tok]);
558:
1.69 schwarze 559: man_node_delete(man, n);
560: man->flags &= ~MAN_BLINE;
1.10 schwarze 561: }
562:
1.84 schwarze 563: /* Remember whether we are in next-line scope for a block head. */
1.24 schwarze 564:
1.84 schwarze 565: bline = man->flags & MAN_BLINE;
1.24 schwarze 566:
567: /* Call to handler... */
1.1 kristaps 568:
1.22 schwarze 569: assert(man_macros[tok].fp);
1.69 schwarze 570: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.84 schwarze 571: return(0);
1.73 schwarze 572:
573: /* In quick mode (for mandocdb), abort after the NAME section. */
574:
1.80 schwarze 575: if (man->quick && MAN_SH == tok) {
576: n = man->last;
577: if (MAN_BODY == n->type &&
578: strcmp(n->prev->child->string, "NAME"))
579: return(2);
580: }
1.1 kristaps 581:
1.79 schwarze 582: /*
1.84 schwarze 583: * If we are in a next-line scope for a block head,
584: * close it out now and switch to the body,
585: * unless the next-line scope is allowed to continue.
1.21 schwarze 586: */
587:
1.84 schwarze 588: if ( ! bline || man->flags & MAN_ELINE ||
589: man_macros[tok].flags & MAN_NSCOPED)
1.21 schwarze 590: return(1);
1.1 kristaps 591:
1.69 schwarze 592: assert(MAN_BLINE & man->flags);
593: man->flags &= ~MAN_BLINE;
1.1 kristaps 594:
1.82 schwarze 595: if ( ! man_unscope(man, man->last->parent))
1.9 schwarze 596: return(0);
1.69 schwarze 597: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 598: }
1.21 schwarze 599:
1.22 schwarze 600: /*
1.69 schwarze 601: * Unlink a node from its context. If "man" is provided, the last parse
1.22 schwarze 602: * point will also be adjusted accordingly.
603: */
604: static void
1.69 schwarze 605: man_node_unlink(struct man *man, struct man_node *n)
1.21 schwarze 606: {
607:
1.22 schwarze 608: /* Adjust siblings. */
609:
610: if (n->prev)
1.21 schwarze 611: n->prev->next = n->next;
1.22 schwarze 612: if (n->next)
613: n->next->prev = n->prev;
614:
615: /* Adjust parent. */
616:
617: if (n->parent) {
618: n->parent->nchild--;
619: if (n->parent->child == n)
620: n->parent->child = n->prev ? n->prev : n->next;
621: }
622:
623: /* Adjust parse point, if applicable. */
624:
1.69 schwarze 625: if (man && man->last == n) {
1.22 schwarze 626: /*XXX: this can occur when bailing from validation. */
627: /*assert(NULL == n->next);*/
628: if (n->prev) {
1.69 schwarze 629: man->last = n->prev;
630: man->next = MAN_NEXT_SIBLING;
1.22 schwarze 631: } else {
1.69 schwarze 632: man->last = n->parent;
633: man->next = MAN_NEXT_CHILD;
1.21 schwarze 634: }
635: }
636:
1.69 schwarze 637: if (man && man->first == n)
638: man->first = NULL;
1.62 schwarze 639: }
640:
641: const struct mparse *
1.69 schwarze 642: man_mparse(const struct man *man)
1.62 schwarze 643: {
644:
1.69 schwarze 645: assert(man && man->parse);
646: return(man->parse);
1.76 schwarze 647: }
648:
649: void
650: man_deroff(char **dest, const struct man_node *n)
651: {
652: char *cp;
653: size_t sz;
654:
655: if (MAN_TEXT != n->type) {
656: for (n = n->child; n; n = n->next)
657: man_deroff(dest, n);
658: return;
659: }
660:
1.77 schwarze 661: /* Skip leading whitespace and escape sequences. */
1.76 schwarze 662:
1.77 schwarze 663: cp = n->string;
664: while ('\0' != *cp) {
665: if ('\\' == *cp) {
666: cp++;
667: mandoc_escape((const char **)&cp, NULL, NULL);
668: } else if (isspace((unsigned char)*cp))
669: cp++;
670: else
1.76 schwarze 671: break;
1.77 schwarze 672: }
1.76 schwarze 673:
674: /* Skip trailing whitespace. */
675:
676: for (sz = strlen(cp); sz; sz--)
677: if (0 == isspace((unsigned char)cp[sz-1]))
678: break;
679:
680: /* Skip empty strings. */
681:
682: if (0 == sz)
683: return;
684:
685: if (NULL == *dest) {
686: *dest = mandoc_strndup(cp, sz);
687: return;
688: }
689:
690: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
691: free(*dest);
692: *dest = cp;
1.4 schwarze 693: }
![[BACK]](/icons/back.gif){kind=icon}
Return to man.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / mandoc