Annotation of src/usr.bin/mandoc/man.c, Revision 1.92
1.92 ! schwarze 1: /* $OpenBSD: man.c,v 1.91 2014/11/19 03:07:43 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);
1.92 ! schwarze 51: static void man_node_append(struct man *, struct man_node *);
1.22 schwarze 52: static void man_node_free(struct man_node *);
1.79 schwarze 53: static void man_node_unlink(struct man *,
1.22 schwarze 54: struct man_node *);
1.31 schwarze 55: static int man_ptext(struct man *, int, char *, int);
56: static int man_pmacro(struct man *, int, char *, int);
1.1 kristaps 57: static void man_free1(struct man *);
1.16 schwarze 58: static void man_alloc1(struct man *);
1.92 ! schwarze 59: static void man_descope(struct man *, int, int);
1.1 kristaps 60:
61:
62: const struct man_node *
1.69 schwarze 63: man_node(const struct man *man)
1.1 kristaps 64: {
65:
1.69 schwarze 66: return(man->first);
1.1 kristaps 67: }
68:
69: const struct man_meta *
1.69 schwarze 70: man_meta(const struct man *man)
1.1 kristaps 71: {
72:
1.69 schwarze 73: return(&man->meta);
1.1 kristaps 74: }
75:
1.16 schwarze 76: void
1.1 kristaps 77: man_reset(struct man *man)
78: {
79:
80: man_free1(man);
1.16 schwarze 81: man_alloc1(man);
1.1 kristaps 82: }
83:
84: void
85: man_free(struct man *man)
86: {
87:
88: man_free1(man);
89: free(man);
90: }
91:
92: struct man *
1.73 schwarze 93: man_alloc(struct roff *roff, struct mparse *parse, int quick)
1.1 kristaps 94: {
95: struct man *p;
96:
1.16 schwarze 97: p = mandoc_calloc(1, sizeof(struct man));
1.1 kristaps 98:
1.13 schwarze 99: man_hash_init();
1.59 schwarze 100: p->parse = parse;
1.73 schwarze 101: p->quick = quick;
1.60 schwarze 102: p->roff = roff;
1.16 schwarze 103:
104: man_alloc1(p);
1.1 kristaps 105: return(p);
106: }
107:
108: int
1.69 schwarze 109: man_endparse(struct man *man)
1.1 kristaps 110: {
111:
1.92 ! schwarze 112: man_macroend(man);
! 113: return(1);
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);
1.92 ! schwarze 134: free(man->meta.title);
! 135: free(man->meta.source);
! 136: free(man->meta.date);
! 137: free(man->meta.vol);
! 138: free(man->meta.msec);
1.1 kristaps 139: }
140:
1.16 schwarze 141: static void
1.69 schwarze 142: man_alloc1(struct man *man)
1.1 kristaps 143: {
144:
1.69 schwarze 145: memset(&man->meta, 0, sizeof(struct man_meta));
146: man->flags = 0;
147: man->last = mandoc_calloc(1, sizeof(struct man_node));
148: man->first = man->last;
149: man->last->type = MAN_ROOT;
150: man->last->tok = MAN_MAX;
151: man->next = MAN_NEXT_CHILD;
1.1 kristaps 152: }
153:
154:
1.92 ! schwarze 155: static void
1.1 kristaps 156: man_node_append(struct man *man, struct man_node *p)
157: {
158:
159: assert(man->last);
160: assert(man->first);
1.92 ! schwarze 161: assert(p->type != MAN_ROOT);
1.1 kristaps 162:
163: switch (man->next) {
1.79 schwarze 164: case MAN_NEXT_SIBLING:
1.1 kristaps 165: man->last->next = p;
166: p->prev = man->last;
167: p->parent = man->last->parent;
168: break;
1.79 schwarze 169: case MAN_NEXT_CHILD:
1.1 kristaps 170: man->last->child = p;
171: p->parent = man->last;
172: break;
173: default:
174: abort();
175: /* NOTREACHED */
176: }
1.79 schwarze 177:
1.22 schwarze 178: assert(p->parent);
1.5 schwarze 179: p->parent->nchild++;
1.1 kristaps 180:
1.9 schwarze 181: switch (p->type) {
1.86 schwarze 182: case MAN_BLOCK:
183: if (p->tok == MAN_SH || p->tok == MAN_SS)
184: man->flags &= ~MAN_LITERAL;
185: break;
1.79 schwarze 186: case MAN_HEAD:
1.92 ! schwarze 187: assert(p->parent->type == MAN_BLOCK);
1.9 schwarze 188: p->parent->head = p;
189: break;
1.79 schwarze 190: case MAN_BODY:
1.92 ! schwarze 191: assert(p->parent->type == MAN_BLOCK);
1.9 schwarze 192: p->parent->body = p;
193: break;
194: default:
195: break;
196: }
197:
1.1 kristaps 198: man->last = p;
199:
200: switch (p->type) {
1.79 schwarze 201: case MAN_TBL:
1.52 schwarze 202: /* FALLTHROUGH */
1.79 schwarze 203: case MAN_TEXT:
1.92 ! schwarze 204: man_valid_post(man);
1.1 kristaps 205: break;
206: default:
207: break;
208: }
209: }
210:
211: static struct man_node *
1.79 schwarze 212: man_node_alloc(struct man *man, int line, int pos,
1.54 schwarze 213: enum man_type type, enum mant tok)
1.1 kristaps 214: {
215: struct man_node *p;
216:
1.16 schwarze 217: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 218: p->line = line;
219: p->pos = pos;
220: p->type = type;
221: p->tok = tok;
1.54 schwarze 222:
1.92 ! schwarze 223: if (man->flags & MAN_NEWLINE)
1.54 schwarze 224: p->flags |= MAN_LINE;
1.69 schwarze 225: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 226: return(p);
227: }
228:
1.92 ! schwarze 229: void
1.69 schwarze 230: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 231: {
232: struct man_node *p;
233:
1.69 schwarze 234: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
1.92 ! schwarze 235: man_node_append(man, p);
1.69 schwarze 236: man->next = MAN_NEXT_CHILD;
1.1 kristaps 237: }
238:
1.92 ! schwarze 239: void
1.69 schwarze 240: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 241: {
242: struct man_node *p;
243:
1.69 schwarze 244: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
1.92 ! schwarze 245: man_node_append(man, p);
1.69 schwarze 246: man->next = MAN_NEXT_CHILD;
1.9 schwarze 247: }
248:
1.92 ! schwarze 249: void
1.69 schwarze 250: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 251: {
252: struct man_node *p;
253:
1.69 schwarze 254: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
1.92 ! schwarze 255: man_node_append(man, p);
1.69 schwarze 256: man->next = MAN_NEXT_CHILD;
1.9 schwarze 257: }
258:
1.92 ! schwarze 259: void
1.69 schwarze 260: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 261: {
262: struct man_node *p;
263:
1.69 schwarze 264: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
1.92 ! schwarze 265: man_node_append(man, p);
1.69 schwarze 266: man->next = MAN_NEXT_CHILD;
1.9 schwarze 267: }
268:
1.92 ! schwarze 269: void
1.69 schwarze 270: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 271: {
1.10 schwarze 272: struct man_node *n;
1.1 kristaps 273:
1.69 schwarze 274: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
275: n->string = roff_strdup(man->roff, word);
1.92 ! schwarze 276: man_node_append(man, n);
1.69 schwarze 277: man->next = MAN_NEXT_SIBLING;
1.90 schwarze 278: }
279:
280: void
281: man_word_append(struct man *man, const char *word)
282: {
283: struct man_node *n;
284: char *addstr, *newstr;
285:
286: n = man->last;
287: addstr = roff_strdup(man->roff, word);
288: mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
289: free(addstr);
290: free(n->string);
291: n->string = newstr;
292: man->next = MAN_NEXT_SIBLING;
1.10 schwarze 293: }
294:
1.22 schwarze 295: /*
296: * Free all of the resources held by a node. This does NOT unlink a
297: * node from its context; for that, see man_node_unlink().
298: */
299: static void
1.1 kristaps 300: man_node_free(struct man_node *p)
301: {
302:
1.92 ! schwarze 303: free(p->string);
1.1 kristaps 304: free(p);
305: }
306:
307: void
1.69 schwarze 308: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 309: {
310:
1.22 schwarze 311: while (p->child)
1.69 schwarze 312: man_node_delete(man, p->child);
1.22 schwarze 313:
1.69 schwarze 314: man_node_unlink(man, p);
1.1 kristaps 315: man_node_free(p);
316: }
317:
1.57 schwarze 318: int
1.69 schwarze 319: man_addeqn(struct man *man, const struct eqn *ep)
1.57 schwarze 320: {
321: struct man_node *n;
322:
1.69 schwarze 323: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.57 schwarze 324: n->eqn = ep;
1.88 schwarze 325: if (ep->ln > man->last->line)
326: n->flags |= MAN_LINE;
1.92 ! schwarze 327: man_node_append(man, n);
1.69 schwarze 328: man->next = MAN_NEXT_SIBLING;
1.92 ! schwarze 329: man_descope(man, ep->ln, ep->pos);
! 330: return(1);
1.57 schwarze 331: }
1.1 kristaps 332:
1.52 schwarze 333: int
1.69 schwarze 334: man_addspan(struct man *man, const struct tbl_span *sp)
1.52 schwarze 335: {
1.55 schwarze 336: struct man_node *n;
1.52 schwarze 337:
1.69 schwarze 338: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.55 schwarze 339: n->span = sp;
1.92 ! schwarze 340: man_node_append(man, n);
1.69 schwarze 341: man->next = MAN_NEXT_SIBLING;
1.92 ! schwarze 342: man_descope(man, sp->line, 0);
! 343: return(1);
1.52 schwarze 344: }
345:
1.92 ! schwarze 346: static void
1.69 schwarze 347: man_descope(struct man *man, int line, int offs)
1.52 schwarze 348: {
349: /*
350: * Co-ordinate what happens with having a next-line scope open:
351: * first close out the element scope (if applicable), then close
352: * out the block scope (also if applicable).
353: */
354:
1.92 ! schwarze 355: if (man->flags & MAN_ELINE) {
1.69 schwarze 356: man->flags &= ~MAN_ELINE;
1.92 ! schwarze 357: man_unscope(man, man->last->parent);
1.52 schwarze 358: }
1.92 ! schwarze 359: if ( ! (man->flags & MAN_BLINE))
! 360: return;
1.69 schwarze 361: man->flags &= ~MAN_BLINE;
1.92 ! schwarze 362: man_unscope(man, man->last->parent);
! 363: man_body_alloc(man, line, offs, man->last->tok);
1.52 schwarze 364: }
365:
1.1 kristaps 366: static int
1.69 schwarze 367: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 368: {
1.27 schwarze 369: int i;
1.26 schwarze 370:
1.10 schwarze 371: /* Literal free-form text whitespace is preserved. */
372:
1.92 ! schwarze 373: if (man->flags & MAN_LITERAL) {
! 374: man_word_alloc(man, line, offs, buf + offs);
! 375: man_descope(man, line, offs);
! 376: return(1);
1.10 schwarze 377: }
378:
1.92 ! schwarze 379: for (i = offs; buf[i] == ' '; i++)
1.10 schwarze 380: /* Skip leading whitespace. */ ;
1.18 schwarze 381:
1.71 schwarze 382: /*
383: * Blank lines are ignored right after headings
384: * but add a single vertical space elsewhere.
385: */
386:
1.92 ! schwarze 387: if (buf[i] == '\0') {
1.27 schwarze 388: /* Allocate a blank entry. */
1.92 ! schwarze 389: if (man->last->tok != MAN_SH &&
! 390: man->last->tok != MAN_SS) {
! 391: man_elem_alloc(man, line, offs, MAN_sp);
1.71 schwarze 392: man->next = MAN_NEXT_SIBLING;
393: }
1.68 schwarze 394: return(1);
1.10 schwarze 395: }
1.1 kristaps 396:
1.79 schwarze 397: /*
1.27 schwarze 398: * Warn if the last un-escaped character is whitespace. Then
1.79 schwarze 399: * strip away the remaining spaces (tabs stay!).
1.27 schwarze 400: */
1.18 schwarze 401:
1.27 schwarze 402: i = (int)strlen(buf);
403: assert(i);
1.18 schwarze 404:
1.27 schwarze 405: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
406: if (i > 1 && '\\' != buf[i - 2])
1.81 schwarze 407: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
408: line, i - 1, NULL);
1.18 schwarze 409:
1.27 schwarze 410: for (--i; i && ' ' == buf[i]; i--)
411: /* Spin back to non-space. */ ;
1.10 schwarze 412:
1.27 schwarze 413: /* Jump ahead of escaped whitespace. */
414: i += '\\' == buf[i] ? 2 : 1;
1.18 schwarze 415:
1.27 schwarze 416: buf[i] = '\0';
1.10 schwarze 417: }
1.92 ! schwarze 418: man_word_alloc(man, line, offs, buf + offs);
1.28 schwarze 419:
420: /*
421: * End-of-sentence check. If the last character is an unescaped
422: * EOS character, then flag the node as being the end of a
423: * sentence. The front-end will know how to interpret this.
424: */
425:
426: assert(i);
1.72 schwarze 427: if (mandoc_eos(buf, (size_t)i))
1.69 schwarze 428: man->last->flags |= MAN_EOS;
1.10 schwarze 429:
1.92 ! schwarze 430: man_descope(man, line, offs);
! 431: return(1);
1.1 kristaps 432: }
433:
1.53 schwarze 434: static int
1.69 schwarze 435: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 436: {
1.10 schwarze 437: struct man_node *n;
1.91 schwarze 438: const char *cp;
1.84 schwarze 439: enum mant tok;
440: int i, ppos;
441: int bline;
1.91 schwarze 442: char mac[5];
1.1 kristaps 443:
1.59 schwarze 444: ppos = offs;
1.1 kristaps 445:
1.23 schwarze 446: /*
1.59 schwarze 447: * Copy the first word into a nil-terminated buffer.
1.91 schwarze 448: * Stop when a space, tab, escape, or eoln is encountered.
1.23 schwarze 449: */
1.27 schwarze 450:
1.59 schwarze 451: i = 0;
1.91 schwarze 452: while (i < 4 && strchr(" \t\\", buf[offs]) == NULL)
1.59 schwarze 453: mac[i++] = buf[offs++];
1.1 kristaps 454:
1.59 schwarze 455: mac[i] = '\0';
1.1 kristaps 456:
1.59 schwarze 457: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 458:
1.91 schwarze 459: if (tok == MAN_MAX) {
1.85 schwarze 460: mandoc_msg(MANDOCERR_MACRO, man->parse,
461: ln, ppos, buf + ppos - 1);
1.1 kristaps 462: return(1);
463: }
464:
1.91 schwarze 465: /* Skip a leading escape sequence or tab. */
466:
467: switch (buf[offs]) {
468: case '\\':
469: cp = buf + offs + 1;
470: mandoc_escape(&cp, NULL, NULL);
471: offs = cp - buf;
472: break;
473: case '\t':
474: offs++;
475: break;
476: default:
477: break;
478: }
479:
480: /* Jump to the next non-whitespace word. */
1.1 kristaps 481:
1.92 ! schwarze 482: while (buf[offs] && buf[offs] == ' ')
1.59 schwarze 483: offs++;
1.18 schwarze 484:
1.79 schwarze 485: /*
1.27 schwarze 486: * Trailing whitespace. Note that tabs are allowed to be passed
487: * into the parser as "text", so we only warn about spaces here.
488: */
1.18 schwarze 489:
1.92 ! schwarze 490: if (buf[offs] == '\0' && buf[offs - 1] == ' ')
1.81 schwarze 491: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
492: ln, offs - 1, NULL);
1.1 kristaps 493:
1.79 schwarze 494: /*
1.46 schwarze 495: * Remove prior ELINE macro, as it's being clobbered by a new
1.21 schwarze 496: * macro. Note that NSCOPED macros do not close out ELINE
497: * macros---they don't print text---so we let those slip by.
498: */
499:
1.92 ! schwarze 500: if ( ! (man_macros[tok].flags & MAN_NSCOPED) &&
1.69 schwarze 501: man->flags & MAN_ELINE) {
502: n = man->last;
1.46 schwarze 503: assert(MAN_TEXT != n->type);
1.21 schwarze 504:
1.49 schwarze 505: /* Remove repeated NSCOPED macros causing ELINE. */
506:
1.92 ! schwarze 507: if (man_macros[n->tok].flags & MAN_NSCOPED)
1.46 schwarze 508: n = n->parent;
1.21 schwarze 509:
1.83 schwarze 510: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.63 schwarze 511: n->pos, "%s breaks %s", man_macronames[tok],
512: man_macronames[n->tok]);
1.10 schwarze 513:
1.69 schwarze 514: man_node_delete(man, n);
515: man->flags &= ~MAN_ELINE;
1.63 schwarze 516: }
517:
518: /*
519: * Remove prior BLINE macro that is being clobbered.
520: */
1.69 schwarze 521: if ((man->flags & MAN_BLINE) &&
1.92 ! schwarze 522: (man_macros[tok].flags & MAN_BSCOPE)) {
1.69 schwarze 523: n = man->last;
1.64 schwarze 524:
525: /* Might be a text node like 8 in
526: * .TP 8
527: * .SH foo
528: */
1.92 ! schwarze 529: if (n->type == MAN_TEXT)
1.64 schwarze 530: n = n->parent;
1.63 schwarze 531:
532: /* Remove element that didn't end BLINE, if any. */
1.92 ! schwarze 533: if ( ! (man_macros[n->tok].flags & MAN_BSCOPE))
1.63 schwarze 534: n = n->parent;
535:
1.92 ! schwarze 536: assert(n->type == MAN_HEAD);
1.63 schwarze 537: n = n->parent;
1.92 ! schwarze 538: assert(n->type == MAN_BLOCK);
! 539: assert(man_macros[n->tok].flags & MAN_SCOPED);
1.63 schwarze 540:
1.83 schwarze 541: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line,
1.63 schwarze 542: n->pos, "%s breaks %s", man_macronames[tok],
543: man_macronames[n->tok]);
544:
1.69 schwarze 545: man_node_delete(man, n);
546: man->flags &= ~MAN_BLINE;
1.10 schwarze 547: }
548:
1.84 schwarze 549: /* Remember whether we are in next-line scope for a block head. */
1.24 schwarze 550:
1.84 schwarze 551: bline = man->flags & MAN_BLINE;
1.24 schwarze 552:
553: /* Call to handler... */
1.1 kristaps 554:
1.22 schwarze 555: assert(man_macros[tok].fp);
1.92 ! schwarze 556: (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf);
1.73 schwarze 557:
558: /* In quick mode (for mandocdb), abort after the NAME section. */
559:
1.92 ! schwarze 560: if (man->quick && tok == MAN_SH) {
1.80 schwarze 561: n = man->last;
1.92 ! schwarze 562: if (n->type == MAN_BODY &&
1.80 schwarze 563: strcmp(n->prev->child->string, "NAME"))
564: return(2);
565: }
1.1 kristaps 566:
1.79 schwarze 567: /*
1.84 schwarze 568: * If we are in a next-line scope for a block head,
569: * close it out now and switch to the body,
570: * unless the next-line scope is allowed to continue.
1.21 schwarze 571: */
572:
1.84 schwarze 573: if ( ! bline || man->flags & MAN_ELINE ||
574: man_macros[tok].flags & MAN_NSCOPED)
1.21 schwarze 575: return(1);
1.1 kristaps 576:
1.92 ! schwarze 577: assert(man->flags & MAN_BLINE);
1.69 schwarze 578: man->flags &= ~MAN_BLINE;
1.1 kristaps 579:
1.92 ! schwarze 580: man_unscope(man, man->last->parent);
! 581: man_body_alloc(man, ln, ppos, man->last->tok);
! 582: return(1);
1.1 kristaps 583: }
1.21 schwarze 584:
1.22 schwarze 585: /*
1.69 schwarze 586: * Unlink a node from its context. If "man" is provided, the last parse
1.22 schwarze 587: * point will also be adjusted accordingly.
588: */
589: static void
1.69 schwarze 590: man_node_unlink(struct man *man, struct man_node *n)
1.21 schwarze 591: {
592:
1.22 schwarze 593: /* Adjust siblings. */
594:
595: if (n->prev)
1.21 schwarze 596: n->prev->next = n->next;
1.22 schwarze 597: if (n->next)
598: n->next->prev = n->prev;
599:
600: /* Adjust parent. */
601:
602: if (n->parent) {
603: n->parent->nchild--;
604: if (n->parent->child == n)
605: n->parent->child = n->prev ? n->prev : n->next;
606: }
607:
608: /* Adjust parse point, if applicable. */
609:
1.69 schwarze 610: if (man && man->last == n) {
1.22 schwarze 611: /*XXX: this can occur when bailing from validation. */
612: /*assert(NULL == n->next);*/
613: if (n->prev) {
1.69 schwarze 614: man->last = n->prev;
615: man->next = MAN_NEXT_SIBLING;
1.22 schwarze 616: } else {
1.69 schwarze 617: man->last = n->parent;
618: man->next = MAN_NEXT_CHILD;
1.21 schwarze 619: }
620: }
621:
1.69 schwarze 622: if (man && man->first == n)
623: man->first = NULL;
1.62 schwarze 624: }
625:
626: const struct mparse *
1.69 schwarze 627: man_mparse(const struct man *man)
1.62 schwarze 628: {
629:
1.69 schwarze 630: assert(man && man->parse);
631: return(man->parse);
1.76 schwarze 632: }
633:
634: void
635: man_deroff(char **dest, const struct man_node *n)
636: {
637: char *cp;
638: size_t sz;
639:
1.92 ! schwarze 640: if (n->type != MAN_TEXT) {
1.76 schwarze 641: for (n = n->child; n; n = n->next)
642: man_deroff(dest, n);
643: return;
644: }
645:
1.77 schwarze 646: /* Skip leading whitespace and escape sequences. */
1.76 schwarze 647:
1.77 schwarze 648: cp = n->string;
649: while ('\0' != *cp) {
650: if ('\\' == *cp) {
651: cp++;
652: mandoc_escape((const char **)&cp, NULL, NULL);
653: } else if (isspace((unsigned char)*cp))
654: cp++;
655: else
1.76 schwarze 656: break;
1.77 schwarze 657: }
1.76 schwarze 658:
659: /* Skip trailing whitespace. */
660:
661: for (sz = strlen(cp); sz; sz--)
662: if (0 == isspace((unsigned char)cp[sz-1]))
663: break;
664:
665: /* Skip empty strings. */
666:
667: if (0 == sz)
668: return;
669:
670: if (NULL == *dest) {
671: *dest = mandoc_strndup(cp, sz);
672: return;
673: }
674:
675: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
676: free(*dest);
677: *dest = cp;
1.4 schwarze 678: }
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