Annotation of src/usr.bin/mandoc/man.c, Revision 1.78
1.78 ! schwarze 1: /* $Id: man.c,v 1.77 2014/03/23 20:57:23 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:
34: const char *const __man_macronames[MAN_MAX] = {
1.3 schwarze 35: "br", "TH", "SH", "SS",
1.1 kristaps 36: "TP", "LP", "PP", "P",
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:
1.54 schwarze 49: static struct man_node *man_node_alloc(struct man *, int, int,
1.22 schwarze 50: enum man_type, enum mant);
1.1 kristaps 51: static int man_node_append(struct man *,
52: struct man_node *);
1.22 schwarze 53: static void man_node_free(struct man_node *);
54: static void man_node_unlink(struct man *,
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: assert( ! (MAN_HALT & man->flags));
68: return(man->first);
1.1 kristaps 69: }
70:
71:
72: const struct man_meta *
1.69 schwarze 73: man_meta(const struct man *man)
1.1 kristaps 74: {
75:
1.69 schwarze 76: assert( ! (MAN_HALT & man->flags));
77: return(&man->meta);
1.1 kristaps 78: }
79:
80:
1.16 schwarze 81: void
1.1 kristaps 82: man_reset(struct man *man)
83: {
84:
85: man_free1(man);
1.16 schwarze 86: man_alloc1(man);
1.1 kristaps 87: }
88:
89:
90: void
91: man_free(struct man *man)
92: {
93:
94: man_free1(man);
95: free(man);
96: }
97:
98:
99: struct man *
1.73 schwarze 100: man_alloc(struct roff *roff, struct mparse *parse, int quick)
1.1 kristaps 101: {
102: struct man *p;
103:
1.16 schwarze 104: p = mandoc_calloc(1, sizeof(struct man));
1.1 kristaps 105:
1.13 schwarze 106: man_hash_init();
1.59 schwarze 107: p->parse = parse;
1.73 schwarze 108: p->quick = quick;
1.60 schwarze 109: p->roff = roff;
1.16 schwarze 110:
111: man_alloc1(p);
1.1 kristaps 112: return(p);
113: }
114:
115:
116: int
1.69 schwarze 117: man_endparse(struct man *man)
1.1 kristaps 118: {
119:
1.69 schwarze 120: assert( ! (MAN_HALT & man->flags));
121: if (man_macroend(man))
1.1 kristaps 122: return(1);
1.69 schwarze 123: man->flags |= MAN_HALT;
1.1 kristaps 124: return(0);
125: }
126:
127:
128: int
1.69 schwarze 129: man_parseln(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 130: {
1.25 schwarze 131:
1.69 schwarze 132: man->flags |= MAN_NEWLINE;
1.54 schwarze 133:
1.69 schwarze 134: assert( ! (MAN_HALT & man->flags));
1.59 schwarze 135:
1.69 schwarze 136: return (roff_getcontrol(man->roff, buf, &offs) ?
137: man_pmacro(man, ln, buf, offs) :
138: man_ptext(man, ln, buf, offs));
1.1 kristaps 139: }
140:
141:
142: static void
143: man_free1(struct man *man)
144: {
145:
146: if (man->first)
1.22 schwarze 147: man_node_delete(man, man->first);
1.1 kristaps 148: if (man->meta.title)
149: free(man->meta.title);
150: if (man->meta.source)
151: free(man->meta.source);
1.56 schwarze 152: if (man->meta.date)
153: free(man->meta.date);
1.1 kristaps 154: if (man->meta.vol)
155: free(man->meta.vol);
1.29 schwarze 156: if (man->meta.msec)
157: free(man->meta.msec);
1.1 kristaps 158: }
159:
160:
1.16 schwarze 161: static void
1.69 schwarze 162: man_alloc1(struct man *man)
1.1 kristaps 163: {
164:
1.69 schwarze 165: memset(&man->meta, 0, sizeof(struct man_meta));
166: man->flags = 0;
167: man->last = mandoc_calloc(1, sizeof(struct man_node));
168: man->first = man->last;
169: man->last->type = MAN_ROOT;
170: man->last->tok = MAN_MAX;
171: man->next = MAN_NEXT_CHILD;
1.1 kristaps 172: }
173:
174:
175: static int
176: man_node_append(struct man *man, struct man_node *p)
177: {
178:
179: assert(man->last);
180: assert(man->first);
181: assert(MAN_ROOT != p->type);
182:
183: switch (man->next) {
184: case (MAN_NEXT_SIBLING):
185: man->last->next = p;
186: p->prev = man->last;
187: p->parent = man->last->parent;
188: break;
189: case (MAN_NEXT_CHILD):
190: man->last->child = p;
191: p->parent = man->last;
192: break;
193: default:
194: abort();
195: /* NOTREACHED */
196: }
1.5 schwarze 197:
1.22 schwarze 198: assert(p->parent);
1.5 schwarze 199: p->parent->nchild++;
1.1 kristaps 200:
1.9 schwarze 201: if ( ! man_valid_pre(man, p))
202: return(0);
203:
204: switch (p->type) {
205: case (MAN_HEAD):
206: assert(MAN_BLOCK == p->parent->type);
207: p->parent->head = p;
208: break;
1.59 schwarze 209: case (MAN_TAIL):
210: assert(MAN_BLOCK == p->parent->type);
211: p->parent->tail = p;
212: break;
1.9 schwarze 213: case (MAN_BODY):
214: assert(MAN_BLOCK == p->parent->type);
215: p->parent->body = p;
216: break;
217: default:
218: break;
219: }
220:
1.1 kristaps 221: man->last = p;
222:
223: switch (p->type) {
1.52 schwarze 224: case (MAN_TBL):
225: /* FALLTHROUGH */
1.1 kristaps 226: case (MAN_TEXT):
227: if ( ! man_valid_post(man))
228: return(0);
229: break;
230: default:
231: break;
232: }
233:
234: return(1);
235: }
236:
237:
238: static struct man_node *
1.69 schwarze 239: man_node_alloc(struct man *man, int line, int pos,
1.54 schwarze 240: enum man_type type, enum mant tok)
1.1 kristaps 241: {
242: struct man_node *p;
243:
1.16 schwarze 244: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 245: p->line = line;
246: p->pos = pos;
247: p->type = type;
248: p->tok = tok;
1.54 schwarze 249:
1.69 schwarze 250: if (MAN_NEWLINE & man->flags)
1.54 schwarze 251: p->flags |= MAN_LINE;
1.69 schwarze 252: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 253: return(p);
254: }
255:
256:
257: int
1.69 schwarze 258: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 259: {
260: struct man_node *p;
261:
1.69 schwarze 262: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
263: if ( ! man_node_append(man, p))
1.10 schwarze 264: return(0);
1.69 schwarze 265: man->next = MAN_NEXT_CHILD;
1.10 schwarze 266: return(1);
1.1 kristaps 267: }
268:
269:
270: int
1.69 schwarze 271: man_tail_alloc(struct man *man, int line, int pos, enum mant tok)
1.59 schwarze 272: {
273: struct man_node *p;
274:
1.69 schwarze 275: p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
276: if ( ! man_node_append(man, p))
1.59 schwarze 277: return(0);
1.69 schwarze 278: man->next = MAN_NEXT_CHILD;
1.59 schwarze 279: return(1);
280: }
281:
282:
283: int
1.69 schwarze 284: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 285: {
286: struct man_node *p;
287:
1.69 schwarze 288: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
289: if ( ! man_node_append(man, p))
1.9 schwarze 290: return(0);
1.69 schwarze 291: man->next = MAN_NEXT_CHILD;
1.9 schwarze 292: return(1);
293: }
294:
295:
296: int
1.69 schwarze 297: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 298: {
299: struct man_node *p;
300:
1.69 schwarze 301: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
302: if ( ! man_node_append(man, p))
1.9 schwarze 303: return(0);
1.69 schwarze 304: man->next = MAN_NEXT_CHILD;
1.9 schwarze 305: return(1);
306: }
307:
308:
309: int
1.69 schwarze 310: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 311: {
312: struct man_node *p;
313:
1.69 schwarze 314: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
315: if ( ! man_node_append(man, p))
1.9 schwarze 316: return(0);
1.69 schwarze 317: man->next = MAN_NEXT_CHILD;
1.9 schwarze 318: return(1);
319: }
320:
1.27 schwarze 321: int
1.69 schwarze 322: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 323: {
1.10 schwarze 324: struct man_node *n;
1.1 kristaps 325:
1.69 schwarze 326: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
327: n->string = roff_strdup(man->roff, word);
1.10 schwarze 328:
1.69 schwarze 329: if ( ! man_node_append(man, n))
1.1 kristaps 330: return(0);
1.27 schwarze 331:
1.69 schwarze 332: man->next = MAN_NEXT_SIBLING;
1.10 schwarze 333: return(1);
334: }
335:
336:
1.22 schwarze 337: /*
338: * Free all of the resources held by a node. This does NOT unlink a
339: * node from its context; for that, see man_node_unlink().
340: */
341: static void
1.1 kristaps 342: man_node_free(struct man_node *p)
343: {
344:
345: if (p->string)
346: free(p->string);
347: free(p);
348: }
349:
350:
351: void
1.69 schwarze 352: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 353: {
354:
1.22 schwarze 355: while (p->child)
1.69 schwarze 356: man_node_delete(man, p->child);
1.22 schwarze 357:
1.69 schwarze 358: man_node_unlink(man, p);
1.1 kristaps 359: man_node_free(p);
360: }
361:
1.57 schwarze 362: int
1.69 schwarze 363: man_addeqn(struct man *man, const struct eqn *ep)
1.57 schwarze 364: {
365: struct man_node *n;
366:
1.69 schwarze 367: assert( ! (MAN_HALT & man->flags));
1.57 schwarze 368:
1.69 schwarze 369: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.57 schwarze 370: n->eqn = ep;
371:
1.69 schwarze 372: if ( ! man_node_append(man, n))
1.57 schwarze 373: return(0);
374:
1.69 schwarze 375: man->next = MAN_NEXT_SIBLING;
376: return(man_descope(man, ep->ln, ep->pos));
1.57 schwarze 377: }
1.1 kristaps 378:
1.52 schwarze 379: int
1.69 schwarze 380: man_addspan(struct man *man, const struct tbl_span *sp)
1.52 schwarze 381: {
1.55 schwarze 382: struct man_node *n;
1.52 schwarze 383:
1.69 schwarze 384: assert( ! (MAN_HALT & man->flags));
1.55 schwarze 385:
1.69 schwarze 386: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.55 schwarze 387: n->span = sp;
388:
1.69 schwarze 389: if ( ! man_node_append(man, n))
1.52 schwarze 390: return(0);
1.55 schwarze 391:
1.69 schwarze 392: man->next = MAN_NEXT_SIBLING;
393: return(man_descope(man, sp->line, 0));
1.52 schwarze 394: }
395:
396: static int
1.69 schwarze 397: man_descope(struct man *man, int line, int offs)
1.52 schwarze 398: {
399: /*
400: * Co-ordinate what happens with having a next-line scope open:
401: * first close out the element scope (if applicable), then close
402: * out the block scope (also if applicable).
403: */
404:
1.69 schwarze 405: if (MAN_ELINE & man->flags) {
406: man->flags &= ~MAN_ELINE;
407: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 408: return(0);
409: }
410:
1.69 schwarze 411: if ( ! (MAN_BLINE & man->flags))
1.52 schwarze 412: return(1);
1.69 schwarze 413: man->flags &= ~MAN_BLINE;
1.52 schwarze 414:
1.69 schwarze 415: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 416: return(0);
1.69 schwarze 417: return(man_body_alloc(man, line, offs, man->last->tok));
1.52 schwarze 418: }
419:
1.1 kristaps 420: static int
1.69 schwarze 421: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 422: {
1.27 schwarze 423: int i;
1.26 schwarze 424:
1.10 schwarze 425: /* Literal free-form text whitespace is preserved. */
426:
1.69 schwarze 427: if (MAN_LITERAL & man->flags) {
428: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.10 schwarze 429: return(0);
1.69 schwarze 430: return(man_descope(man, line, offs));
1.10 schwarze 431: }
432:
1.31 schwarze 433: for (i = offs; ' ' == buf[i]; i++)
1.10 schwarze 434: /* Skip leading whitespace. */ ;
1.18 schwarze 435:
1.71 schwarze 436: /*
437: * Blank lines are ignored right after headings
438: * but add a single vertical space elsewhere.
439: */
440:
1.18 schwarze 441: if ('\0' == buf[i]) {
1.27 schwarze 442: /* Allocate a blank entry. */
1.71 schwarze 443: if (MAN_SH != man->last->tok &&
444: MAN_SS != man->last->tok) {
445: if ( ! man_elem_alloc(man, line, offs, MAN_sp))
446: return(0);
447: man->next = MAN_NEXT_SIBLING;
448: }
1.68 schwarze 449: return(1);
1.10 schwarze 450: }
1.1 kristaps 451:
1.27 schwarze 452: /*
453: * Warn if the last un-escaped character is whitespace. Then
454: * strip away the remaining spaces (tabs stay!).
455: */
1.18 schwarze 456:
1.27 schwarze 457: i = (int)strlen(buf);
458: assert(i);
1.18 schwarze 459:
1.27 schwarze 460: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
461: if (i > 1 && '\\' != buf[i - 2])
1.69 schwarze 462: man_pmsg(man, line, i - 1, MANDOCERR_EOLNSPACE);
1.18 schwarze 463:
1.27 schwarze 464: for (--i; i && ' ' == buf[i]; i--)
465: /* Spin back to non-space. */ ;
1.10 schwarze 466:
1.27 schwarze 467: /* Jump ahead of escaped whitespace. */
468: i += '\\' == buf[i] ? 2 : 1;
1.18 schwarze 469:
1.27 schwarze 470: buf[i] = '\0';
1.10 schwarze 471: }
1.9 schwarze 472:
1.69 schwarze 473: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.1 kristaps 474: return(0);
1.28 schwarze 475:
476: /*
477: * End-of-sentence check. If the last character is an unescaped
478: * EOS character, then flag the node as being the end of a
479: * sentence. The front-end will know how to interpret this.
480: */
481:
482: assert(i);
1.72 schwarze 483: if (mandoc_eos(buf, (size_t)i))
1.69 schwarze 484: man->last->flags |= MAN_EOS;
1.10 schwarze 485:
1.69 schwarze 486: return(man_descope(man, line, offs));
1.1 kristaps 487: }
488:
1.53 schwarze 489: static int
1.69 schwarze 490: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 491: {
1.59 schwarze 492: int i, ppos;
1.22 schwarze 493: enum mant tok;
1.10 schwarze 494: char mac[5];
495: struct man_node *n;
1.1 kristaps 496:
1.59 schwarze 497: if ('"' == buf[offs]) {
1.69 schwarze 498: man_pmsg(man, ln, offs, MANDOCERR_BADCOMMENT);
1.59 schwarze 499: return(1);
500: } else if ('\0' == buf[offs])
1.17 schwarze 501: return(1);
1.1 kristaps 502:
1.59 schwarze 503: ppos = offs;
1.1 kristaps 504:
1.23 schwarze 505: /*
1.59 schwarze 506: * Copy the first word into a nil-terminated buffer.
507: * Stop copying when a tab, space, or eoln is encountered.
1.23 schwarze 508: */
1.27 schwarze 509:
1.59 schwarze 510: i = 0;
511: while (i < 4 && '\0' != buf[offs] &&
512: ' ' != buf[offs] && '\t' != buf[offs])
513: mac[i++] = buf[offs++];
1.1 kristaps 514:
1.59 schwarze 515: mac[i] = '\0';
1.1 kristaps 516:
1.59 schwarze 517: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 518:
1.40 schwarze 519: if (MAN_MAX == tok) {
1.69 schwarze 520: mandoc_vmsg(MANDOCERR_MACRO, man->parse, ln,
1.59 schwarze 521: ppos, "%s", buf + ppos - 1);
1.1 kristaps 522: return(1);
523: }
524:
525: /* The macro is sane. Jump to the next word. */
526:
1.59 schwarze 527: while (buf[offs] && ' ' == buf[offs])
528: offs++;
1.18 schwarze 529:
1.27 schwarze 530: /*
531: * Trailing whitespace. Note that tabs are allowed to be passed
532: * into the parser as "text", so we only warn about spaces here.
533: */
1.18 schwarze 534:
1.59 schwarze 535: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.69 schwarze 536: man_pmsg(man, ln, offs - 1, MANDOCERR_EOLNSPACE);
1.1 kristaps 537:
1.21 schwarze 538: /*
1.46 schwarze 539: * Remove prior ELINE macro, as it's being clobbered by a new
1.21 schwarze 540: * macro. Note that NSCOPED macros do not close out ELINE
541: * macros---they don't print text---so we let those slip by.
542: */
543:
1.22 schwarze 544: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.69 schwarze 545: man->flags & MAN_ELINE) {
546: n = man->last;
1.46 schwarze 547: assert(MAN_TEXT != n->type);
1.21 schwarze 548:
1.49 schwarze 549: /* Remove repeated NSCOPED macros causing ELINE. */
550:
1.46 schwarze 551: if (MAN_NSCOPED & man_macros[n->tok].flags)
552: n = n->parent;
1.21 schwarze 553:
1.69 schwarze 554: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 555: n->pos, "%s breaks %s", man_macronames[tok],
556: man_macronames[n->tok]);
1.10 schwarze 557:
1.69 schwarze 558: man_node_delete(man, n);
559: man->flags &= ~MAN_ELINE;
1.63 schwarze 560: }
561:
562: /*
563: * Remove prior BLINE macro that is being clobbered.
564: */
1.69 schwarze 565: if ((man->flags & MAN_BLINE) &&
1.63 schwarze 566: (MAN_BSCOPE & man_macros[tok].flags)) {
1.69 schwarze 567: n = man->last;
1.64 schwarze 568:
569: /* Might be a text node like 8 in
570: * .TP 8
571: * .SH foo
572: */
573: if (MAN_TEXT == n->type)
574: n = n->parent;
1.63 schwarze 575:
576: /* Remove element that didn't end BLINE, if any. */
577: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
578: n = n->parent;
579:
580: assert(MAN_HEAD == n->type);
581: n = n->parent;
582: assert(MAN_BLOCK == n->type);
583: assert(MAN_SCOPED & man_macros[n->tok].flags);
584:
1.69 schwarze 585: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 586: n->pos, "%s breaks %s", man_macronames[tok],
587: man_macronames[n->tok]);
588:
1.69 schwarze 589: man_node_delete(man, n);
590: man->flags &= ~MAN_BLINE;
1.10 schwarze 591: }
592:
1.24 schwarze 593: /*
594: * Save the fact that we're in the next-line for a block. In
595: * this way, embedded roff instructions can "remember" state
596: * when they exit.
597: */
598:
1.69 schwarze 599: if (MAN_BLINE & man->flags)
600: man->flags |= MAN_BPLINE;
1.24 schwarze 601:
602: /* Call to handler... */
1.1 kristaps 603:
1.22 schwarze 604: assert(man_macros[tok].fp);
1.69 schwarze 605: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.1 kristaps 606: goto err;
1.73 schwarze 607:
608: /* In quick mode (for mandocdb), abort after the NAME section. */
609:
610: if (man->quick && MAN_SH == tok &&
611: strcmp(man->last->prev->child->string, "NAME"))
612: return(2);
1.1 kristaps 613:
1.21 schwarze 614: /*
615: * We weren't in a block-line scope when entering the
616: * above-parsed macro, so return.
617: */
618:
1.69 schwarze 619: if ( ! (MAN_BPLINE & man->flags)) {
620: man->flags &= ~MAN_ILINE;
1.9 schwarze 621: return(1);
1.21 schwarze 622: }
1.69 schwarze 623: man->flags &= ~MAN_BPLINE;
1.21 schwarze 624:
625: /*
626: * If we're in a block scope, then allow this macro to slip by
627: * without closing scope around it.
628: */
629:
1.69 schwarze 630: if (MAN_ILINE & man->flags) {
631: man->flags &= ~MAN_ILINE;
1.21 schwarze 632: return(1);
633: }
1.9 schwarze 634:
635: /*
636: * If we've opened a new next-line element scope, then return
637: * now, as the next line will close out the block scope.
638: */
639:
1.69 schwarze 640: if (MAN_ELINE & man->flags)
1.9 schwarze 641: return(1);
642:
643: /* Close out the block scope opened in the prior line. */
1.1 kristaps 644:
1.69 schwarze 645: assert(MAN_BLINE & man->flags);
646: man->flags &= ~MAN_BLINE;
1.1 kristaps 647:
1.69 schwarze 648: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.9 schwarze 649: return(0);
1.69 schwarze 650: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 651:
652: err: /* Error out. */
653:
1.69 schwarze 654: man->flags |= MAN_HALT;
1.1 kristaps 655: return(0);
656: }
1.21 schwarze 657:
1.22 schwarze 658: /*
1.69 schwarze 659: * Unlink a node from its context. If "man" is provided, the last parse
1.22 schwarze 660: * point will also be adjusted accordingly.
661: */
662: static void
1.69 schwarze 663: man_node_unlink(struct man *man, struct man_node *n)
1.21 schwarze 664: {
665:
1.22 schwarze 666: /* Adjust siblings. */
667:
668: if (n->prev)
1.21 schwarze 669: n->prev->next = n->next;
1.22 schwarze 670: if (n->next)
671: n->next->prev = n->prev;
672:
673: /* Adjust parent. */
674:
675: if (n->parent) {
676: n->parent->nchild--;
677: if (n->parent->child == n)
678: n->parent->child = n->prev ? n->prev : n->next;
679: }
680:
681: /* Adjust parse point, if applicable. */
682:
1.69 schwarze 683: if (man && man->last == n) {
1.22 schwarze 684: /*XXX: this can occur when bailing from validation. */
685: /*assert(NULL == n->next);*/
686: if (n->prev) {
1.69 schwarze 687: man->last = n->prev;
688: man->next = MAN_NEXT_SIBLING;
1.22 schwarze 689: } else {
1.69 schwarze 690: man->last = n->parent;
691: man->next = MAN_NEXT_CHILD;
1.21 schwarze 692: }
693: }
694:
1.69 schwarze 695: if (man && man->first == n)
696: man->first = NULL;
1.62 schwarze 697: }
698:
699: const struct mparse *
1.69 schwarze 700: man_mparse(const struct man *man)
1.62 schwarze 701: {
702:
1.69 schwarze 703: assert(man && man->parse);
704: return(man->parse);
1.76 schwarze 705: }
706:
707: void
708: man_deroff(char **dest, const struct man_node *n)
709: {
710: char *cp;
711: size_t sz;
712:
713: if (MAN_TEXT != n->type) {
714: for (n = n->child; n; n = n->next)
715: man_deroff(dest, n);
716: return;
717: }
718:
1.77 schwarze 719: /* Skip leading whitespace and escape sequences. */
1.76 schwarze 720:
1.77 schwarze 721: cp = n->string;
722: while ('\0' != *cp) {
723: if ('\\' == *cp) {
724: cp++;
725: mandoc_escape((const char **)&cp, NULL, NULL);
726: } else if (isspace((unsigned char)*cp))
727: cp++;
728: else
1.76 schwarze 729: break;
1.77 schwarze 730: }
1.76 schwarze 731:
732: /* Skip trailing whitespace. */
733:
734: for (sz = strlen(cp); sz; sz--)
735: if (0 == isspace((unsigned char)cp[sz-1]))
736: break;
737:
738: /* Skip empty strings. */
739:
740: if (0 == sz)
741: return;
742:
743: if (NULL == *dest) {
744: *dest = mandoc_strndup(cp, sz);
745: return;
746: }
747:
748: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
749: free(*dest);
750: *dest = cp;
1.4 schwarze 751: }
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