Annotation of src/usr.bin/mandoc/man.c, Revision 1.90
1.90 ! schwarze 1: /* $OpenBSD: man.c,v 1.89 2014/10/20 15:49:45 schwarze Exp $ */
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:
1.89 schwarze 120: if (man->last->type != MAN_EQN || ln > man->last->line)
121: man->flags |= MAN_NEWLINE;
1.54 schwarze 122:
1.69 schwarze 123: return (roff_getcontrol(man->roff, buf, &offs) ?
1.79 schwarze 124: man_pmacro(man, ln, buf, offs) :
125: man_ptext(man, ln, buf, offs));
1.1 kristaps 126: }
127:
128: static void
129: man_free1(struct man *man)
130: {
131:
132: if (man->first)
1.22 schwarze 133: man_node_delete(man, man->first);
1.1 kristaps 134: if (man->meta.title)
135: free(man->meta.title);
136: if (man->meta.source)
137: free(man->meta.source);
1.56 schwarze 138: if (man->meta.date)
139: free(man->meta.date);
1.1 kristaps 140: if (man->meta.vol)
141: free(man->meta.vol);
1.29 schwarze 142: if (man->meta.msec)
143: free(man->meta.msec);
1.1 kristaps 144: }
145:
1.16 schwarze 146: static void
1.69 schwarze 147: man_alloc1(struct man *man)
1.1 kristaps 148: {
149:
1.69 schwarze 150: memset(&man->meta, 0, sizeof(struct man_meta));
151: man->flags = 0;
152: man->last = mandoc_calloc(1, sizeof(struct man_node));
153: man->first = man->last;
154: man->last->type = MAN_ROOT;
155: man->last->tok = MAN_MAX;
156: man->next = MAN_NEXT_CHILD;
1.1 kristaps 157: }
158:
159:
160: static int
161: man_node_append(struct man *man, struct man_node *p)
162: {
163:
164: assert(man->last);
165: assert(man->first);
166: assert(MAN_ROOT != p->type);
167:
168: switch (man->next) {
1.79 schwarze 169: case MAN_NEXT_SIBLING:
1.1 kristaps 170: man->last->next = p;
171: p->prev = man->last;
172: p->parent = man->last->parent;
173: break;
1.79 schwarze 174: case MAN_NEXT_CHILD:
1.1 kristaps 175: man->last->child = p;
176: p->parent = man->last;
177: break;
178: default:
179: abort();
180: /* NOTREACHED */
181: }
1.79 schwarze 182:
1.22 schwarze 183: assert(p->parent);
1.5 schwarze 184: p->parent->nchild++;
1.1 kristaps 185:
1.9 schwarze 186: switch (p->type) {
1.86 schwarze 187: case MAN_BLOCK:
188: if (p->tok == MAN_SH || p->tok == MAN_SS)
189: man->flags &= ~MAN_LITERAL;
190: break;
1.79 schwarze 191: case MAN_HEAD:
1.9 schwarze 192: assert(MAN_BLOCK == p->parent->type);
193: p->parent->head = p;
194: break;
1.79 schwarze 195: case MAN_TAIL:
1.59 schwarze 196: assert(MAN_BLOCK == p->parent->type);
197: p->parent->tail = p;
198: break;
1.79 schwarze 199: case MAN_BODY:
1.9 schwarze 200: assert(MAN_BLOCK == p->parent->type);
201: p->parent->body = p;
202: break;
203: default:
204: break;
205: }
206:
1.1 kristaps 207: man->last = p;
208:
209: switch (p->type) {
1.79 schwarze 210: case MAN_TBL:
1.52 schwarze 211: /* FALLTHROUGH */
1.79 schwarze 212: case MAN_TEXT:
1.1 kristaps 213: if ( ! man_valid_post(man))
214: return(0);
215: break;
216: default:
217: break;
218: }
219:
220: return(1);
221: }
222:
223: static struct man_node *
1.79 schwarze 224: man_node_alloc(struct man *man, int line, int pos,
1.54 schwarze 225: enum man_type type, enum mant tok)
1.1 kristaps 226: {
227: struct man_node *p;
228:
1.16 schwarze 229: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 230: p->line = line;
231: p->pos = pos;
232: p->type = type;
233: p->tok = tok;
1.54 schwarze 234:
1.69 schwarze 235: if (MAN_NEWLINE & man->flags)
1.54 schwarze 236: p->flags |= MAN_LINE;
1.69 schwarze 237: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 238: return(p);
239: }
240:
241: int
1.69 schwarze 242: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 243: {
244: struct man_node *p;
245:
1.69 schwarze 246: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
247: if ( ! man_node_append(man, p))
1.10 schwarze 248: return(0);
1.69 schwarze 249: man->next = MAN_NEXT_CHILD;
1.10 schwarze 250: return(1);
1.1 kristaps 251: }
252:
253: int
1.69 schwarze 254: man_tail_alloc(struct man *man, int line, int pos, enum mant tok)
1.59 schwarze 255: {
256: struct man_node *p;
257:
1.69 schwarze 258: p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
259: if ( ! man_node_append(man, p))
1.59 schwarze 260: return(0);
1.69 schwarze 261: man->next = MAN_NEXT_CHILD;
1.59 schwarze 262: return(1);
263: }
264:
265: int
1.69 schwarze 266: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 267: {
268: struct man_node *p;
269:
1.69 schwarze 270: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
271: if ( ! man_node_append(man, p))
1.9 schwarze 272: return(0);
1.69 schwarze 273: man->next = MAN_NEXT_CHILD;
1.9 schwarze 274: return(1);
275: }
276:
277: int
1.69 schwarze 278: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 279: {
280: struct man_node *p;
281:
1.69 schwarze 282: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
283: if ( ! man_node_append(man, p))
1.9 schwarze 284: return(0);
1.69 schwarze 285: man->next = MAN_NEXT_CHILD;
1.9 schwarze 286: return(1);
287: }
288:
289: int
1.69 schwarze 290: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 291: {
292: struct man_node *p;
293:
1.69 schwarze 294: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
295: if ( ! man_node_append(man, p))
1.9 schwarze 296: return(0);
1.69 schwarze 297: man->next = MAN_NEXT_CHILD;
1.9 schwarze 298: return(1);
299: }
300:
1.27 schwarze 301: int
1.69 schwarze 302: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 303: {
1.10 schwarze 304: struct man_node *n;
1.1 kristaps 305:
1.69 schwarze 306: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
307: n->string = roff_strdup(man->roff, word);
1.10 schwarze 308:
1.69 schwarze 309: if ( ! man_node_append(man, n))
1.1 kristaps 310: return(0);
1.27 schwarze 311:
1.69 schwarze 312: man->next = MAN_NEXT_SIBLING;
1.10 schwarze 313: return(1);
1.90 ! schwarze 314: }
! 315:
! 316: void
! 317: man_word_append(struct man *man, const char *word)
! 318: {
! 319: struct man_node *n;
! 320: char *addstr, *newstr;
! 321:
! 322: n = man->last;
! 323: addstr = roff_strdup(man->roff, word);
! 324: mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
! 325: free(addstr);
! 326: free(n->string);
! 327: n->string = newstr;
! 328: man->next = MAN_NEXT_SIBLING;
1.10 schwarze 329: }
330:
1.22 schwarze 331: /*
332: * Free all of the resources held by a node. This does NOT unlink a
333: * node from its context; for that, see man_node_unlink().
334: */
335: static void
1.1 kristaps 336: man_node_free(struct man_node *p)
337: {
338:
339: if (p->string)
340: free(p->string);
341: free(p);
342: }
343:
344: void
1.69 schwarze 345: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 346: {
347:
1.22 schwarze 348: while (p->child)
1.69 schwarze 349: man_node_delete(man, p->child);
1.22 schwarze 350:
1.69 schwarze 351: man_node_unlink(man, p);
1.1 kristaps 352: man_node_free(p);
353: }
354:
1.57 schwarze 355: int
1.69 schwarze 356: man_addeqn(struct man *man, const struct eqn *ep)
1.57 schwarze 357: {
358: struct man_node *n;
359:
1.69 schwarze 360: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.57 schwarze 361: n->eqn = ep;
1.88 schwarze 362: if (ep->ln > man->last->line)
363: n->flags |= MAN_LINE;
1.57 schwarze 364:
1.69 schwarze 365: if ( ! man_node_append(man, n))
1.57 schwarze 366: return(0);
367:
1.69 schwarze 368: man->next = MAN_NEXT_SIBLING;
369: return(man_descope(man, ep->ln, ep->pos));
1.57 schwarze 370: }
1.1 kristaps 371:
1.52 schwarze 372: int
1.69 schwarze 373: man_addspan(struct man *man, const struct tbl_span *sp)
1.52 schwarze 374: {
1.55 schwarze 375: struct man_node *n;
1.52 schwarze 376:
1.69 schwarze 377: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.55 schwarze 378: n->span = sp;
379:
1.69 schwarze 380: if ( ! man_node_append(man, n))
1.52 schwarze 381: return(0);
1.55 schwarze 382:
1.69 schwarze 383: man->next = MAN_NEXT_SIBLING;
384: return(man_descope(man, sp->line, 0));
1.52 schwarze 385: }
386:
387: static int
1.69 schwarze 388: man_descope(struct man *man, int line, int offs)
1.52 schwarze 389: {
390: /*
391: * Co-ordinate what happens with having a next-line scope open:
392: * first close out the element scope (if applicable), then close
393: * out the block scope (also if applicable).
394: */
395:
1.69 schwarze 396: if (MAN_ELINE & man->flags) {
397: man->flags &= ~MAN_ELINE;
1.82 schwarze 398: if ( ! man_unscope(man, man->last->parent))
1.52 schwarze 399: return(0);
400: }
401:
1.69 schwarze 402: if ( ! (MAN_BLINE & man->flags))
1.52 schwarze 403: return(1);
1.69 schwarze 404: man->flags &= ~MAN_BLINE;
1.52 schwarze 405:
1.82 schwarze 406: if ( ! man_unscope(man, man->last->parent))
1.52 schwarze 407: return(0);
1.69 schwarze 408: return(man_body_alloc(man, line, offs, man->last->tok));
1.52 schwarze 409: }
410:
1.1 kristaps 411: static int
1.69 schwarze 412: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 413: {
1.27 schwarze 414: int i;
1.26 schwarze 415:
1.10 schwarze 416: /* Literal free-form text whitespace is preserved. */
417:
1.69 schwarze 418: if (MAN_LITERAL & man->flags) {
419: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.10 schwarze 420: return(0);
1.69 schwarze 421: return(man_descope(man, line, offs));
1.10 schwarze 422: }
423:
1.31 schwarze 424: for (i = offs; ' ' == buf[i]; i++)
1.10 schwarze 425: /* Skip leading whitespace. */ ;
1.18 schwarze 426:
1.71 schwarze 427: /*
428: * Blank lines are ignored right after headings
429: * but add a single vertical space elsewhere.
430: */
431:
1.18 schwarze 432: if ('\0' == buf[i]) {
1.27 schwarze 433: /* Allocate a blank entry. */
1.71 schwarze 434: if (MAN_SH != man->last->tok &&
435: MAN_SS != man->last->tok) {
436: if ( ! man_elem_alloc(man, line, offs, MAN_sp))
437: return(0);
438: man->next = MAN_NEXT_SIBLING;
439: }
1.68 schwarze 440: return(1);
1.10 schwarze 441: }
1.1 kristaps 442:
1.79 schwarze 443: /*
1.27 schwarze 444: * Warn if the last un-escaped character is whitespace. Then
1.79 schwarze 445: * strip away the remaining spaces (tabs stay!).
1.27 schwarze 446: */
1.18 schwarze 447:
1.27 schwarze 448: i = (int)strlen(buf);
449: assert(i);
1.18 schwarze 450:
1.27 schwarze 451: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
452: if (i > 1 && '\\' != buf[i - 2])
1.81 schwarze 453: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
454: line, i - 1, NULL);
1.18 schwarze 455:
1.27 schwarze 456: for (--i; i && ' ' == buf[i]; i--)
457: /* Spin back to non-space. */ ;
1.10 schwarze 458:
1.27 schwarze 459: /* Jump ahead of escaped whitespace. */
460: i += '\\' == buf[i] ? 2 : 1;
1.18 schwarze 461:
1.27 schwarze 462: buf[i] = '\0';
1.10 schwarze 463: }
1.9 schwarze 464:
1.69 schwarze 465: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.1 kristaps 466: return(0);
1.28 schwarze 467:
468: /*
469: * End-of-sentence check. If the last character is an unescaped
470: * EOS character, then flag the node as being the end of a
471: * sentence. The front-end will know how to interpret this.
472: */
473:
474: assert(i);
1.72 schwarze 475: if (mandoc_eos(buf, (size_t)i))
1.69 schwarze 476: man->last->flags |= MAN_EOS;
1.10 schwarze 477:
1.69 schwarze 478: return(man_descope(man, line, offs));
1.1 kristaps 479: }
480:
1.53 schwarze 481: static int
1.69 schwarze 482: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 483: {
1.10 schwarze 484: char mac[5];
485: struct man_node *n;
1.84 schwarze 486: enum mant tok;
487: int i, ppos;
488: int bline;
1.1 kristaps 489:
1.59 schwarze 490: ppos = offs;
1.1 kristaps 491:
1.23 schwarze 492: /*
1.59 schwarze 493: * Copy the first word into a nil-terminated buffer.
494: * Stop copying when a tab, space, or eoln is encountered.
1.23 schwarze 495: */
1.27 schwarze 496:
1.59 schwarze 497: i = 0;
1.79 schwarze 498: while (i < 4 && '\0' != buf[offs] && ' ' != buf[offs] &&
499: '\t' != buf[offs])
1.59 schwarze 500: mac[i++] = buf[offs++];
1.1 kristaps 501:
1.59 schwarze 502: mac[i] = '\0';
1.1 kristaps 503:
1.59 schwarze 504: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 505:
1.40 schwarze 506: if (MAN_MAX == tok) {
1.85 schwarze 507: mandoc_msg(MANDOCERR_MACRO, man->parse,
508: ln, ppos, buf + ppos - 1);
1.1 kristaps 509: return(1);
510: }
511:
512: /* The macro is sane. Jump to the next word. */
513:
1.59 schwarze 514: while (buf[offs] && ' ' == buf[offs])
515: offs++;
1.18 schwarze 516:
1.79 schwarze 517: /*
1.27 schwarze 518: * Trailing whitespace. Note that tabs are allowed to be passed
519: * into the parser as "text", so we only warn about spaces here.
520: */
1.18 schwarze 521:
1.59 schwarze 522: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.81 schwarze 523: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
524: ln, offs - 1, NULL);
1.1 kristaps 525:
1.79 schwarze 526: /*
1.46 schwarze 527: * Remove prior ELINE macro, as it's being clobbered by a new
1.21 schwarze 528: * macro. Note that NSCOPED macros do not close out ELINE
529: * macros---they don't print text---so we let those slip by.
530: */
531:
1.22 schwarze 532: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.69 schwarze 533: man->flags & MAN_ELINE) {
534: n = man->last;
1.46 schwarze 535: assert(MAN_TEXT != n->type);
1.21 schwarze 536:
1.49 schwarze 537: /* Remove repeated NSCOPED macros causing ELINE. */
538:
1.46 schwarze 539: if (MAN_NSCOPED & man_macros[n->tok].flags)
540: n = n->parent;
1.21 schwarze 541:
1.83 schwarze 542: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.63 schwarze 543: n->pos, "%s breaks %s", man_macronames[tok],
544: man_macronames[n->tok]);
1.10 schwarze 545:
1.69 schwarze 546: man_node_delete(man, n);
547: man->flags &= ~MAN_ELINE;
1.63 schwarze 548: }
549:
550: /*
551: * Remove prior BLINE macro that is being clobbered.
552: */
1.69 schwarze 553: if ((man->flags & MAN_BLINE) &&
1.63 schwarze 554: (MAN_BSCOPE & man_macros[tok].flags)) {
1.69 schwarze 555: n = man->last;
1.64 schwarze 556:
557: /* Might be a text node like 8 in
558: * .TP 8
559: * .SH foo
560: */
561: if (MAN_TEXT == n->type)
562: n = n->parent;
1.63 schwarze 563:
564: /* Remove element that didn't end BLINE, if any. */
565: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
566: n = n->parent;
567:
568: assert(MAN_HEAD == n->type);
569: n = n->parent;
570: assert(MAN_BLOCK == n->type);
571: assert(MAN_SCOPED & man_macros[n->tok].flags);
572:
1.83 schwarze 573: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.63 schwarze 574: n->pos, "%s breaks %s", man_macronames[tok],
575: man_macronames[n->tok]);
576:
1.69 schwarze 577: man_node_delete(man, n);
578: man->flags &= ~MAN_BLINE;
1.10 schwarze 579: }
580:
1.84 schwarze 581: /* Remember whether we are in next-line scope for a block head. */
1.24 schwarze 582:
1.84 schwarze 583: bline = man->flags & MAN_BLINE;
1.24 schwarze 584:
585: /* Call to handler... */
1.1 kristaps 586:
1.22 schwarze 587: assert(man_macros[tok].fp);
1.69 schwarze 588: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.84 schwarze 589: return(0);
1.73 schwarze 590:
591: /* In quick mode (for mandocdb), abort after the NAME section. */
592:
1.80 schwarze 593: if (man->quick && MAN_SH == tok) {
594: n = man->last;
595: if (MAN_BODY == n->type &&
596: strcmp(n->prev->child->string, "NAME"))
597: return(2);
598: }
1.1 kristaps 599:
1.79 schwarze 600: /*
1.84 schwarze 601: * If we are in a next-line scope for a block head,
602: * close it out now and switch to the body,
603: * unless the next-line scope is allowed to continue.
1.21 schwarze 604: */
605:
1.84 schwarze 606: if ( ! bline || man->flags & MAN_ELINE ||
607: man_macros[tok].flags & MAN_NSCOPED)
1.21 schwarze 608: return(1);
1.1 kristaps 609:
1.69 schwarze 610: assert(MAN_BLINE & man->flags);
611: man->flags &= ~MAN_BLINE;
1.1 kristaps 612:
1.82 schwarze 613: if ( ! man_unscope(man, man->last->parent))
1.9 schwarze 614: return(0);
1.69 schwarze 615: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 616: }
1.21 schwarze 617:
1.22 schwarze 618: /*
1.69 schwarze 619: * Unlink a node from its context. If "man" is provided, the last parse
1.22 schwarze 620: * point will also be adjusted accordingly.
621: */
622: static void
1.69 schwarze 623: man_node_unlink(struct man *man, struct man_node *n)
1.21 schwarze 624: {
625:
1.22 schwarze 626: /* Adjust siblings. */
627:
628: if (n->prev)
1.21 schwarze 629: n->prev->next = n->next;
1.22 schwarze 630: if (n->next)
631: n->next->prev = n->prev;
632:
633: /* Adjust parent. */
634:
635: if (n->parent) {
636: n->parent->nchild--;
637: if (n->parent->child == n)
638: n->parent->child = n->prev ? n->prev : n->next;
639: }
640:
641: /* Adjust parse point, if applicable. */
642:
1.69 schwarze 643: if (man && man->last == n) {
1.22 schwarze 644: /*XXX: this can occur when bailing from validation. */
645: /*assert(NULL == n->next);*/
646: if (n->prev) {
1.69 schwarze 647: man->last = n->prev;
648: man->next = MAN_NEXT_SIBLING;
1.22 schwarze 649: } else {
1.69 schwarze 650: man->last = n->parent;
651: man->next = MAN_NEXT_CHILD;
1.21 schwarze 652: }
653: }
654:
1.69 schwarze 655: if (man && man->first == n)
656: man->first = NULL;
1.62 schwarze 657: }
658:
659: const struct mparse *
1.69 schwarze 660: man_mparse(const struct man *man)
1.62 schwarze 661: {
662:
1.69 schwarze 663: assert(man && man->parse);
664: return(man->parse);
1.76 schwarze 665: }
666:
667: void
668: man_deroff(char **dest, const struct man_node *n)
669: {
670: char *cp;
671: size_t sz;
672:
673: if (MAN_TEXT != n->type) {
674: for (n = n->child; n; n = n->next)
675: man_deroff(dest, n);
676: return;
677: }
678:
1.77 schwarze 679: /* Skip leading whitespace and escape sequences. */
1.76 schwarze 680:
1.77 schwarze 681: cp = n->string;
682: while ('\0' != *cp) {
683: if ('\\' == *cp) {
684: cp++;
685: mandoc_escape((const char **)&cp, NULL, NULL);
686: } else if (isspace((unsigned char)*cp))
687: cp++;
688: else
1.76 schwarze 689: break;
1.77 schwarze 690: }
1.76 schwarze 691:
692: /* Skip trailing whitespace. */
693:
694: for (sz = strlen(cp); sz; sz--)
695: if (0 == isspace((unsigned char)cp[sz-1]))
696: break;
697:
698: /* Skip empty strings. */
699:
700: if (0 == sz)
701: return;
702:
703: if (NULL == *dest) {
704: *dest = mandoc_strndup(cp, sz);
705: return;
706: }
707:
708: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
709: free(*dest);
710: *dest = cp;
1.4 schwarze 711: }
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