Annotation of src/usr.bin/mandoc/man.c, Revision 1.99
1.99 ! schwarze 1: /* $OpenBSD: man.c,v 1.98 2015/04/02 21:03:18 schwarze Exp $ */
1.1 kristaps 2: /*
1.52 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.97 schwarze 4: * Copyright (c) 2013, 2014, 2015 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: *
1.98 schwarze 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.2 schwarze 12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.98 schwarze 13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.2 schwarze 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:
1.98 schwarze 28: #include "mandoc_aux.h"
29: #include "mandoc.h"
30: #include "roff.h"
1.59 schwarze 31: #include "man.h"
1.98 schwarze 32: #include "libmandoc.h"
1.1 kristaps 33: #include "libman.h"
34:
1.79 schwarze 35: const char *const __man_macronames[MAN_MAX] = {
1.3 schwarze 36: "br", "TH", "SH", "SS",
1.79 schwarze 37: "TP", "LP", "PP", "P",
1.1 kristaps 38: "IP", "HP", "SM", "SB",
39: "BI", "IB", "BR", "RB",
40: "R", "B", "I", "IR",
1.96 schwarze 41: "RI", "sp", "nf",
1.50 schwarze 42: "fi", "RE", "RS", "DT",
43: "UC", "PD", "AT", "in",
1.70 schwarze 44: "ft", "OP", "EX", "EE",
1.78 schwarze 45: "UR", "UE", "ll"
1.1 kristaps 46: };
47:
48: const char * const *man_macronames = __man_macronames;
49:
1.97 schwarze 50: static void man_alloc1(struct man *);
1.99 ! schwarze 51: static void man_breakscope(struct man *, int);
1.97 schwarze 52: static void man_descope(struct man *, int, int);
53: static void man_free1(struct man *);
1.99 ! schwarze 54: static struct roff_node *man_node_alloc(struct man *, int, int,
! 55: enum roff_type, int);
! 56: static void man_node_append(struct man *, struct roff_node *);
! 57: static void man_node_free(struct roff_node *);
! 58: static void man_node_unlink(struct man *, struct roff_node *);
1.31 schwarze 59: static int man_ptext(struct man *, int, char *, int);
60: static int man_pmacro(struct man *, int, char *, int);
1.1 kristaps 61:
62:
1.99 ! schwarze 63: const struct roff_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 *
1.94 schwarze 94: man_alloc(struct roff *roff, struct mparse *parse,
95: const char *defos, int quick)
1.1 kristaps 96: {
97: struct man *p;
98:
1.16 schwarze 99: p = mandoc_calloc(1, sizeof(struct man));
1.1 kristaps 100:
1.13 schwarze 101: man_hash_init();
1.59 schwarze 102: p->parse = parse;
1.94 schwarze 103: p->defos = defos;
1.73 schwarze 104: p->quick = quick;
1.60 schwarze 105: p->roff = roff;
1.16 schwarze 106:
107: man_alloc1(p);
1.1 kristaps 108: return(p);
109: }
110:
1.95 schwarze 111: void
1.69 schwarze 112: man_endparse(struct man *man)
1.1 kristaps 113: {
114:
1.92 schwarze 115: man_macroend(man);
1.1 kristaps 116: }
117:
118: int
1.69 schwarze 119: man_parseln(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 120: {
1.25 schwarze 121:
1.98 schwarze 122: if (man->last->type != ROFFT_EQN || ln > man->last->line)
1.89 schwarze 123: man->flags |= MAN_NEWLINE;
1.54 schwarze 124:
1.69 schwarze 125: return (roff_getcontrol(man->roff, buf, &offs) ?
1.79 schwarze 126: man_pmacro(man, ln, buf, offs) :
127: man_ptext(man, ln, buf, offs));
1.1 kristaps 128: }
129:
130: static void
131: man_free1(struct man *man)
132: {
133:
134: if (man->first)
1.22 schwarze 135: man_node_delete(man, man->first);
1.92 schwarze 136: free(man->meta.title);
137: free(man->meta.source);
138: free(man->meta.date);
139: free(man->meta.vol);
140: free(man->meta.msec);
1.1 kristaps 141: }
142:
1.16 schwarze 143: static void
1.69 schwarze 144: man_alloc1(struct man *man)
1.1 kristaps 145: {
146:
1.69 schwarze 147: memset(&man->meta, 0, sizeof(struct man_meta));
148: man->flags = 0;
1.99 ! schwarze 149: man->last = mandoc_calloc(1, sizeof(*man->last));
1.69 schwarze 150: man->first = man->last;
1.98 schwarze 151: man->last->type = ROFFT_ROOT;
1.69 schwarze 152: man->last->tok = MAN_MAX;
153: man->next = MAN_NEXT_CHILD;
1.1 kristaps 154: }
155:
156:
1.92 schwarze 157: static void
1.99 ! schwarze 158: man_node_append(struct man *man, struct roff_node *p)
1.1 kristaps 159: {
160:
161: assert(man->last);
162: assert(man->first);
1.98 schwarze 163: assert(p->type != ROFFT_ROOT);
1.1 kristaps 164:
165: switch (man->next) {
1.79 schwarze 166: case MAN_NEXT_SIBLING:
1.1 kristaps 167: man->last->next = p;
168: p->prev = man->last;
169: p->parent = man->last->parent;
170: break;
1.79 schwarze 171: case MAN_NEXT_CHILD:
1.1 kristaps 172: man->last->child = p;
173: p->parent = man->last;
174: break;
175: default:
176: abort();
177: /* NOTREACHED */
178: }
1.79 schwarze 179:
1.22 schwarze 180: assert(p->parent);
1.5 schwarze 181: p->parent->nchild++;
1.1 kristaps 182:
1.9 schwarze 183: switch (p->type) {
1.98 schwarze 184: case ROFFT_BLOCK:
1.86 schwarze 185: if (p->tok == MAN_SH || p->tok == MAN_SS)
186: man->flags &= ~MAN_LITERAL;
187: break;
1.98 schwarze 188: case ROFFT_HEAD:
189: assert(p->parent->type == ROFFT_BLOCK);
1.9 schwarze 190: p->parent->head = p;
191: break;
1.98 schwarze 192: case ROFFT_BODY:
193: assert(p->parent->type == ROFFT_BLOCK);
1.9 schwarze 194: p->parent->body = p;
195: break;
196: default:
197: break;
198: }
199:
1.1 kristaps 200: man->last = p;
201:
202: switch (p->type) {
1.98 schwarze 203: case ROFFT_TBL:
1.52 schwarze 204: /* FALLTHROUGH */
1.98 schwarze 205: case ROFFT_TEXT:
1.92 schwarze 206: man_valid_post(man);
1.1 kristaps 207: break;
208: default:
209: break;
210: }
211: }
212:
1.99 ! schwarze 213: static struct roff_node *
1.79 schwarze 214: man_node_alloc(struct man *man, int line, int pos,
1.99 ! schwarze 215: enum roff_type type, int tok)
1.1 kristaps 216: {
1.99 ! schwarze 217: struct roff_node *p;
1.1 kristaps 218:
1.99 ! schwarze 219: p = mandoc_calloc(1, sizeof(*p));
1.1 kristaps 220: p->line = line;
221: p->pos = pos;
222: p->type = type;
223: p->tok = tok;
1.54 schwarze 224:
1.92 schwarze 225: if (man->flags & MAN_NEWLINE)
1.54 schwarze 226: p->flags |= MAN_LINE;
1.69 schwarze 227: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 228: return(p);
229: }
230:
1.92 schwarze 231: void
1.99 ! schwarze 232: man_elem_alloc(struct man *man, int line, int pos, int tok)
1.1 kristaps 233: {
1.99 ! schwarze 234: struct roff_node *p;
1.1 kristaps 235:
1.98 schwarze 236: p = man_node_alloc(man, line, pos, ROFFT_ELEM, tok);
1.92 schwarze 237: man_node_append(man, p);
1.69 schwarze 238: man->next = MAN_NEXT_CHILD;
1.1 kristaps 239: }
240:
1.92 schwarze 241: void
1.99 ! schwarze 242: man_head_alloc(struct man *man, int line, int pos, int tok)
1.9 schwarze 243: {
1.99 ! schwarze 244: struct roff_node *p;
1.9 schwarze 245:
1.98 schwarze 246: p = man_node_alloc(man, line, pos, ROFFT_HEAD, tok);
1.92 schwarze 247: man_node_append(man, p);
1.69 schwarze 248: man->next = MAN_NEXT_CHILD;
1.9 schwarze 249: }
250:
1.92 schwarze 251: void
1.99 ! schwarze 252: man_body_alloc(struct man *man, int line, int pos, int tok)
1.9 schwarze 253: {
1.99 ! schwarze 254: struct roff_node *p;
1.9 schwarze 255:
1.98 schwarze 256: p = man_node_alloc(man, line, pos, ROFFT_BODY, tok);
1.92 schwarze 257: man_node_append(man, p);
1.69 schwarze 258: man->next = MAN_NEXT_CHILD;
1.9 schwarze 259: }
260:
1.92 schwarze 261: void
1.99 ! schwarze 262: man_block_alloc(struct man *man, int line, int pos, int tok)
1.9 schwarze 263: {
1.99 ! schwarze 264: struct roff_node *p;
1.9 schwarze 265:
1.98 schwarze 266: p = man_node_alloc(man, line, pos, ROFFT_BLOCK, tok);
1.92 schwarze 267: man_node_append(man, p);
1.69 schwarze 268: man->next = MAN_NEXT_CHILD;
1.9 schwarze 269: }
270:
1.92 schwarze 271: void
1.69 schwarze 272: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 273: {
1.99 ! schwarze 274: struct roff_node *n;
1.1 kristaps 275:
1.98 schwarze 276: n = man_node_alloc(man, line, pos, ROFFT_TEXT, MAN_MAX);
1.69 schwarze 277: n->string = roff_strdup(man->roff, word);
1.92 schwarze 278: man_node_append(man, n);
1.69 schwarze 279: man->next = MAN_NEXT_SIBLING;
1.90 schwarze 280: }
281:
282: void
283: man_word_append(struct man *man, const char *word)
284: {
1.99 ! schwarze 285: struct roff_node *n;
1.90 schwarze 286: char *addstr, *newstr;
287:
288: n = man->last;
289: addstr = roff_strdup(man->roff, word);
290: mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
291: free(addstr);
292: free(n->string);
293: n->string = newstr;
294: man->next = MAN_NEXT_SIBLING;
1.10 schwarze 295: }
296:
1.22 schwarze 297: /*
298: * Free all of the resources held by a node. This does NOT unlink a
299: * node from its context; for that, see man_node_unlink().
300: */
301: static void
1.99 ! schwarze 302: man_node_free(struct roff_node *p)
1.1 kristaps 303: {
304:
1.92 schwarze 305: free(p->string);
1.1 kristaps 306: free(p);
307: }
308:
309: void
1.99 ! schwarze 310: man_node_delete(struct man *man, struct roff_node *p)
1.1 kristaps 311: {
312:
1.22 schwarze 313: while (p->child)
1.69 schwarze 314: man_node_delete(man, p->child);
1.22 schwarze 315:
1.69 schwarze 316: man_node_unlink(man, p);
1.1 kristaps 317: man_node_free(p);
318: }
319:
1.93 schwarze 320: void
1.69 schwarze 321: man_addeqn(struct man *man, const struct eqn *ep)
1.57 schwarze 322: {
1.99 ! schwarze 323: struct roff_node *n;
1.57 schwarze 324:
1.98 schwarze 325: n = man_node_alloc(man, ep->ln, ep->pos, ROFFT_EQN, MAN_MAX);
1.57 schwarze 326: n->eqn = ep;
1.88 schwarze 327: if (ep->ln > man->last->line)
328: n->flags |= MAN_LINE;
1.92 schwarze 329: man_node_append(man, n);
1.69 schwarze 330: man->next = MAN_NEXT_SIBLING;
1.92 schwarze 331: man_descope(man, ep->ln, ep->pos);
1.57 schwarze 332: }
1.1 kristaps 333:
1.93 schwarze 334: void
1.69 schwarze 335: man_addspan(struct man *man, const struct tbl_span *sp)
1.52 schwarze 336: {
1.99 ! schwarze 337: struct roff_node *n;
1.52 schwarze 338:
1.97 schwarze 339: man_breakscope(man, MAN_MAX);
1.98 schwarze 340: n = man_node_alloc(man, sp->line, 0, ROFFT_TBL, MAN_MAX);
1.55 schwarze 341: n->span = sp;
1.92 schwarze 342: man_node_append(man, n);
1.69 schwarze 343: man->next = MAN_NEXT_SIBLING;
1.92 schwarze 344: man_descope(man, sp->line, 0);
1.52 schwarze 345: }
346:
1.92 schwarze 347: static void
1.69 schwarze 348: man_descope(struct man *man, int line, int offs)
1.52 schwarze 349: {
350: /*
351: * Co-ordinate what happens with having a next-line scope open:
352: * first close out the element scope (if applicable), then close
353: * out the block scope (also if applicable).
354: */
355:
1.92 schwarze 356: if (man->flags & MAN_ELINE) {
1.69 schwarze 357: man->flags &= ~MAN_ELINE;
1.92 schwarze 358: man_unscope(man, man->last->parent);
1.52 schwarze 359: }
1.92 schwarze 360: if ( ! (man->flags & MAN_BLINE))
361: return;
1.69 schwarze 362: man->flags &= ~MAN_BLINE;
1.92 schwarze 363: man_unscope(man, man->last->parent);
364: man_body_alloc(man, line, offs, man->last->tok);
1.52 schwarze 365: }
366:
1.1 kristaps 367: static int
1.69 schwarze 368: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 369: {
1.27 schwarze 370: int i;
1.26 schwarze 371:
1.10 schwarze 372: /* Literal free-form text whitespace is preserved. */
373:
1.92 schwarze 374: if (man->flags & MAN_LITERAL) {
375: man_word_alloc(man, line, offs, buf + offs);
376: man_descope(man, line, offs);
377: return(1);
1.10 schwarze 378: }
379:
1.92 schwarze 380: for (i = offs; buf[i] == ' '; i++)
1.10 schwarze 381: /* Skip leading whitespace. */ ;
1.18 schwarze 382:
1.71 schwarze 383: /*
384: * Blank lines are ignored right after headings
385: * but add a single vertical space elsewhere.
386: */
387:
1.92 schwarze 388: if (buf[i] == '\0') {
1.27 schwarze 389: /* Allocate a blank entry. */
1.92 schwarze 390: if (man->last->tok != MAN_SH &&
391: man->last->tok != MAN_SS) {
392: man_elem_alloc(man, line, offs, MAN_sp);
1.71 schwarze 393: man->next = MAN_NEXT_SIBLING;
394: }
1.68 schwarze 395: return(1);
1.10 schwarze 396: }
1.1 kristaps 397:
1.79 schwarze 398: /*
1.27 schwarze 399: * Warn if the last un-escaped character is whitespace. Then
1.79 schwarze 400: * strip away the remaining spaces (tabs stay!).
1.27 schwarze 401: */
1.18 schwarze 402:
1.27 schwarze 403: i = (int)strlen(buf);
404: assert(i);
1.18 schwarze 405:
1.27 schwarze 406: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
407: if (i > 1 && '\\' != buf[i - 2])
1.81 schwarze 408: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
409: line, i - 1, NULL);
1.18 schwarze 410:
1.27 schwarze 411: for (--i; i && ' ' == buf[i]; i--)
412: /* Spin back to non-space. */ ;
1.10 schwarze 413:
1.27 schwarze 414: /* Jump ahead of escaped whitespace. */
415: i += '\\' == buf[i] ? 2 : 1;
1.18 schwarze 416:
1.27 schwarze 417: buf[i] = '\0';
1.10 schwarze 418: }
1.92 schwarze 419: man_word_alloc(man, line, offs, buf + offs);
1.28 schwarze 420:
421: /*
422: * End-of-sentence check. If the last character is an unescaped
423: * EOS character, then flag the node as being the end of a
424: * sentence. The front-end will know how to interpret this.
425: */
426:
427: assert(i);
1.72 schwarze 428: if (mandoc_eos(buf, (size_t)i))
1.69 schwarze 429: man->last->flags |= MAN_EOS;
1.10 schwarze 430:
1.92 schwarze 431: man_descope(man, line, offs);
432: return(1);
1.1 kristaps 433: }
434:
1.53 schwarze 435: static int
1.69 schwarze 436: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 437: {
1.99 ! schwarze 438: struct roff_node *n;
1.91 schwarze 439: const char *cp;
1.99 ! schwarze 440: int tok;
1.84 schwarze 441: int i, ppos;
442: int bline;
1.91 schwarze 443: char mac[5];
1.1 kristaps 444:
1.59 schwarze 445: ppos = offs;
1.1 kristaps 446:
1.23 schwarze 447: /*
1.59 schwarze 448: * Copy the first word into a nil-terminated buffer.
1.91 schwarze 449: * Stop when a space, tab, escape, or eoln is encountered.
1.23 schwarze 450: */
1.27 schwarze 451:
1.59 schwarze 452: i = 0;
1.91 schwarze 453: while (i < 4 && strchr(" \t\\", buf[offs]) == NULL)
1.59 schwarze 454: mac[i++] = buf[offs++];
1.1 kristaps 455:
1.59 schwarze 456: mac[i] = '\0';
1.1 kristaps 457:
1.59 schwarze 458: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 459:
1.91 schwarze 460: if (tok == MAN_MAX) {
1.85 schwarze 461: mandoc_msg(MANDOCERR_MACRO, man->parse,
462: ln, ppos, buf + ppos - 1);
1.1 kristaps 463: return(1);
464: }
465:
1.91 schwarze 466: /* Skip a leading escape sequence or tab. */
467:
468: switch (buf[offs]) {
469: case '\\':
470: cp = buf + offs + 1;
471: mandoc_escape(&cp, NULL, NULL);
472: offs = cp - buf;
473: break;
474: case '\t':
475: offs++;
476: break;
477: default:
478: break;
479: }
480:
481: /* Jump to the next non-whitespace word. */
1.1 kristaps 482:
1.92 schwarze 483: while (buf[offs] && buf[offs] == ' ')
1.59 schwarze 484: offs++;
1.18 schwarze 485:
1.79 schwarze 486: /*
1.27 schwarze 487: * Trailing whitespace. Note that tabs are allowed to be passed
488: * into the parser as "text", so we only warn about spaces here.
489: */
1.18 schwarze 490:
1.92 schwarze 491: if (buf[offs] == '\0' && buf[offs - 1] == ' ')
1.81 schwarze 492: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
493: ln, offs - 1, NULL);
1.1 kristaps 494:
1.79 schwarze 495: /*
1.97 schwarze 496: * Some macros break next-line scopes; otherwise, remember
497: * whether we are in next-line scope for a block head.
1.21 schwarze 498: */
499:
1.97 schwarze 500: man_breakscope(man, tok);
1.84 schwarze 501: bline = man->flags & MAN_BLINE;
1.24 schwarze 502:
503: /* Call to handler... */
1.1 kristaps 504:
1.22 schwarze 505: assert(man_macros[tok].fp);
1.92 schwarze 506: (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf);
1.73 schwarze 507:
508: /* In quick mode (for mandocdb), abort after the NAME section. */
509:
1.92 schwarze 510: if (man->quick && tok == MAN_SH) {
1.80 schwarze 511: n = man->last;
1.98 schwarze 512: if (n->type == ROFFT_BODY &&
1.80 schwarze 513: strcmp(n->prev->child->string, "NAME"))
514: return(2);
515: }
1.1 kristaps 516:
1.79 schwarze 517: /*
1.84 schwarze 518: * If we are in a next-line scope for a block head,
519: * close it out now and switch to the body,
520: * unless the next-line scope is allowed to continue.
1.21 schwarze 521: */
522:
1.84 schwarze 523: if ( ! bline || man->flags & MAN_ELINE ||
524: man_macros[tok].flags & MAN_NSCOPED)
1.21 schwarze 525: return(1);
1.1 kristaps 526:
1.92 schwarze 527: assert(man->flags & MAN_BLINE);
1.69 schwarze 528: man->flags &= ~MAN_BLINE;
1.1 kristaps 529:
1.92 schwarze 530: man_unscope(man, man->last->parent);
531: man_body_alloc(man, ln, ppos, man->last->tok);
532: return(1);
1.97 schwarze 533: }
534:
535: void
1.99 ! schwarze 536: man_breakscope(struct man *man, int tok)
1.97 schwarze 537: {
1.99 ! schwarze 538: struct roff_node *n;
1.97 schwarze 539:
540: /*
541: * An element next line scope is open,
542: * and the new macro is not allowed inside elements.
543: * Delete the element that is being broken.
544: */
545:
546: if (man->flags & MAN_ELINE && (tok == MAN_MAX ||
547: ! (man_macros[tok].flags & MAN_NSCOPED))) {
548: n = man->last;
1.98 schwarze 549: assert(n->type != ROFFT_TEXT);
1.97 schwarze 550: if (man_macros[n->tok].flags & MAN_NSCOPED)
551: n = n->parent;
552:
553: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
554: n->line, n->pos, "%s breaks %s",
555: tok == MAN_MAX ? "TS" : man_macronames[tok],
556: man_macronames[n->tok]);
557:
558: man_node_delete(man, n);
559: man->flags &= ~MAN_ELINE;
560: }
561:
562: /*
563: * A block header next line scope is open,
564: * and the new macro is not allowed inside block headers.
565: * Delete the block that is being broken.
566: */
567:
568: if (man->flags & MAN_BLINE && (tok == MAN_MAX ||
569: man_macros[tok].flags & MAN_BSCOPE)) {
570: n = man->last;
1.98 schwarze 571: if (n->type == ROFFT_TEXT)
1.97 schwarze 572: n = n->parent;
573: if ( ! (man_macros[n->tok].flags & MAN_BSCOPE))
574: n = n->parent;
575:
1.98 schwarze 576: assert(n->type == ROFFT_HEAD);
1.97 schwarze 577: n = n->parent;
1.98 schwarze 578: assert(n->type == ROFFT_BLOCK);
1.97 schwarze 579: assert(man_macros[n->tok].flags & MAN_SCOPED);
580:
581: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
582: n->line, n->pos, "%s breaks %s",
583: tok == MAN_MAX ? "TS" : man_macronames[tok],
584: man_macronames[n->tok]);
585:
586: man_node_delete(man, n);
587: man->flags &= ~MAN_BLINE;
588: }
1.1 kristaps 589: }
1.21 schwarze 590:
1.22 schwarze 591: /*
1.69 schwarze 592: * Unlink a node from its context. If "man" is provided, the last parse
1.22 schwarze 593: * point will also be adjusted accordingly.
594: */
595: static void
1.99 ! schwarze 596: man_node_unlink(struct man *man, struct roff_node *n)
1.21 schwarze 597: {
598:
1.22 schwarze 599: /* Adjust siblings. */
600:
601: if (n->prev)
1.21 schwarze 602: n->prev->next = n->next;
1.22 schwarze 603: if (n->next)
604: n->next->prev = n->prev;
605:
606: /* Adjust parent. */
607:
608: if (n->parent) {
609: n->parent->nchild--;
610: if (n->parent->child == n)
611: n->parent->child = n->prev ? n->prev : n->next;
612: }
613:
614: /* Adjust parse point, if applicable. */
615:
1.69 schwarze 616: if (man && man->last == n) {
1.22 schwarze 617: /*XXX: this can occur when bailing from validation. */
618: /*assert(NULL == n->next);*/
619: if (n->prev) {
1.69 schwarze 620: man->last = n->prev;
621: man->next = MAN_NEXT_SIBLING;
1.22 schwarze 622: } else {
1.69 schwarze 623: man->last = n->parent;
624: man->next = MAN_NEXT_CHILD;
1.21 schwarze 625: }
626: }
627:
1.69 schwarze 628: if (man && man->first == n)
629: man->first = NULL;
1.62 schwarze 630: }
631:
632: const struct mparse *
1.69 schwarze 633: man_mparse(const struct man *man)
1.62 schwarze 634: {
635:
1.69 schwarze 636: assert(man && man->parse);
637: return(man->parse);
1.76 schwarze 638: }
639:
640: void
1.99 ! schwarze 641: man_deroff(char **dest, const struct roff_node *n)
1.76 schwarze 642: {
643: char *cp;
644: size_t sz;
645:
1.98 schwarze 646: if (n->type != ROFFT_TEXT) {
1.76 schwarze 647: for (n = n->child; n; n = n->next)
648: man_deroff(dest, n);
649: return;
650: }
651:
1.77 schwarze 652: /* Skip leading whitespace and escape sequences. */
1.76 schwarze 653:
1.77 schwarze 654: cp = n->string;
655: while ('\0' != *cp) {
656: if ('\\' == *cp) {
657: cp++;
658: mandoc_escape((const char **)&cp, NULL, NULL);
659: } else if (isspace((unsigned char)*cp))
660: cp++;
661: else
1.76 schwarze 662: break;
1.77 schwarze 663: }
1.76 schwarze 664:
665: /* Skip trailing whitespace. */
666:
667: for (sz = strlen(cp); sz; sz--)
668: if (0 == isspace((unsigned char)cp[sz-1]))
669: break;
670:
671: /* Skip empty strings. */
672:
673: if (0 == sz)
674: return;
675:
676: if (NULL == *dest) {
677: *dest = mandoc_strndup(cp, sz);
678: return;
679: }
680:
681: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
682: free(*dest);
683: *dest = cp;
1.4 schwarze 684: }
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