Annotation of mandoc/man.c, Revision 1.154
1.154 ! schwarze 1: /* $Id: man.c,v 1.153 2015/04/18 16:06:40 schwarze Exp $ */
1.1 kristaps 2: /*
1.102 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.149 schwarze 4: * Copyright (c) 2013, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
1.124 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
1.18 kristaps 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: *
1.150 schwarze 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.18 kristaps 12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.150 schwarze 13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.18 kristaps 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: */
1.47 kristaps 19: #include "config.h"
20:
1.41 kristaps 21: #include <sys/types.h>
22:
1.1 kristaps 23: #include <assert.h>
1.126 schwarze 24: #include <ctype.h>
1.1 kristaps 25: #include <stdarg.h>
26: #include <stdlib.h>
27: #include <stdio.h>
28: #include <string.h>
29:
1.150 schwarze 30: #include "mandoc_aux.h"
31: #include "mandoc.h"
32: #include "roff.h"
1.105 kristaps 33: #include "man.h"
1.150 schwarze 34: #include "libmandoc.h"
1.1 kristaps 35: #include "libman.h"
36:
1.129 schwarze 37: const char *const __man_macronames[MAN_MAX] = {
1.21 kristaps 38: "br", "TH", "SH", "SS",
1.129 schwarze 39: "TP", "LP", "PP", "P",
1.1 kristaps 40: "IP", "HP", "SM", "SB",
41: "BI", "IB", "BR", "RB",
1.11 kristaps 42: "R", "B", "I", "IR",
1.148 schwarze 43: "RI", "sp", "nf",
1.92 kristaps 44: "fi", "RE", "RS", "DT",
45: "UC", "PD", "AT", "in",
1.120 schwarze 46: "ft", "OP", "EX", "EE",
1.128 schwarze 47: "UR", "UE", "ll"
1.1 kristaps 48: };
49:
50: const char * const *man_macronames = __man_macronames;
51:
1.153 schwarze 52: static void man_alloc1(struct roff_man *);
53: static void man_breakscope(struct roff_man *, int);
54: static void man_descope(struct roff_man *, int, int);
55: static void man_free1(struct roff_man *);
56: static struct roff_node *man_node_alloc(struct roff_man *, int, int,
1.151 schwarze 57: enum roff_type, int);
1.153 schwarze 58: static void man_node_append(struct roff_man *,
59: struct roff_node *);
1.151 schwarze 60: static void man_node_free(struct roff_node *);
1.153 schwarze 61: static void man_node_unlink(struct roff_man *,
62: struct roff_node *);
63: static int man_ptext(struct roff_man *, int, char *, int);
64: static int man_pmacro(struct roff_man *, int, char *, int);
1.1 kristaps 65:
66:
1.151 schwarze 67: const struct roff_node *
1.153 schwarze 68: man_node(const struct roff_man *man)
1.1 kristaps 69: {
70:
1.119 schwarze 71: return(man->first);
1.1 kristaps 72: }
73:
1.152 schwarze 74: const struct roff_meta *
1.153 schwarze 75: man_meta(const struct roff_man *man)
1.1 kristaps 76: {
77:
1.119 schwarze 78: return(&man->meta);
1.1 kristaps 79: }
80:
1.45 kristaps 81: void
1.153 schwarze 82: man_reset(struct roff_man *man)
1.1 kristaps 83: {
84:
1.2 kristaps 85: man_free1(man);
1.45 kristaps 86: man_alloc1(man);
1.1 kristaps 87: }
88:
89: void
1.153 schwarze 90: man_free(struct roff_man *man)
1.1 kristaps 91: {
92:
1.2 kristaps 93: man_free1(man);
1.1 kristaps 94: free(man);
95: }
96:
1.153 schwarze 97: struct roff_man *
1.146 schwarze 98: man_alloc(struct roff *roff, struct mparse *parse,
99: const char *defos, int quick)
1.1 kristaps 100: {
1.153 schwarze 101: struct roff_man *p;
1.1 kristaps 102:
1.153 schwarze 103: p = mandoc_calloc(1, sizeof(*p));
1.2 kristaps 104:
1.40 kristaps 105: man_hash_init();
1.104 kristaps 106: p->parse = parse;
1.146 schwarze 107: p->defos = defos;
1.123 schwarze 108: p->quick = quick;
1.108 kristaps 109: p->roff = roff;
1.45 kristaps 110:
111: man_alloc1(p);
1.1 kristaps 112: return(p);
113: }
114:
1.147 schwarze 115: void
1.153 schwarze 116: man_endparse(struct roff_man *man)
1.1 kristaps 117: {
118:
1.144 schwarze 119: man_macroend(man);
1.1 kristaps 120: }
121:
122: int
1.153 schwarze 123: man_parseln(struct roff_man *man, int ln, char *buf, int offs)
1.1 kristaps 124: {
125:
1.150 schwarze 126: if (man->last->type != ROFFT_EQN || ln > man->last->line)
1.141 schwarze 127: man->flags |= MAN_NEWLINE;
1.97 kristaps 128:
1.119 schwarze 129: return (roff_getcontrol(man->roff, buf, &offs) ?
1.129 schwarze 130: man_pmacro(man, ln, buf, offs) :
131: man_ptext(man, ln, buf, offs));
1.1 kristaps 132: }
133:
1.2 kristaps 134: static void
1.153 schwarze 135: man_free1(struct roff_man *man)
1.2 kristaps 136: {
137:
138: if (man->first)
1.54 kristaps 139: man_node_delete(man, man->first);
1.144 schwarze 140: free(man->meta.title);
1.152 schwarze 141: free(man->meta.os);
1.144 schwarze 142: free(man->meta.date);
143: free(man->meta.vol);
144: free(man->meta.msec);
1.2 kristaps 145: }
146:
1.45 kristaps 147: static void
1.153 schwarze 148: man_alloc1(struct roff_man *man)
1.2 kristaps 149: {
150:
1.152 schwarze 151: memset(&man->meta, 0, sizeof(man->meta));
1.154 ! schwarze 152: man->macroset = MACROSET_MAN;
1.119 schwarze 153: man->flags = 0;
1.151 schwarze 154: man->last = mandoc_calloc(1, sizeof(*man->last));
1.119 schwarze 155: man->first = man->last;
1.150 schwarze 156: man->last->type = ROFFT_ROOT;
1.119 schwarze 157: man->last->tok = MAN_MAX;
1.153 schwarze 158: man->next = ROFF_NEXT_CHILD;
1.2 kristaps 159: }
160:
161:
1.144 schwarze 162: static void
1.153 schwarze 163: man_node_append(struct roff_man *man, struct roff_node *p)
1.1 kristaps 164: {
165:
166: assert(man->last);
167: assert(man->first);
1.150 schwarze 168: assert(p->type != ROFFT_ROOT);
1.1 kristaps 169:
170: switch (man->next) {
1.153 schwarze 171: case ROFF_NEXT_SIBLING:
1.1 kristaps 172: man->last->next = p;
173: p->prev = man->last;
174: p->parent = man->last->parent;
175: break;
1.153 schwarze 176: case ROFF_NEXT_CHILD:
1.1 kristaps 177: man->last->child = p;
178: p->parent = man->last;
179: break;
180: default:
181: abort();
182: /* NOTREACHED */
183: }
1.129 schwarze 184:
1.54 kristaps 185: assert(p->parent);
1.22 kristaps 186: p->parent->nchild++;
1.1 kristaps 187:
1.29 kristaps 188: switch (p->type) {
1.150 schwarze 189: case ROFFT_BLOCK:
1.137 schwarze 190: if (p->tok == MAN_SH || p->tok == MAN_SS)
191: man->flags &= ~MAN_LITERAL;
192: break;
1.150 schwarze 193: case ROFFT_HEAD:
194: assert(p->parent->type == ROFFT_BLOCK);
1.29 kristaps 195: p->parent->head = p;
196: break;
1.150 schwarze 197: case ROFFT_BODY:
198: assert(p->parent->type == ROFFT_BLOCK);
1.29 kristaps 199: p->parent->body = p;
200: break;
201: default:
202: break;
203: }
204:
1.2 kristaps 205: man->last = p;
206:
1.1 kristaps 207: switch (p->type) {
1.150 schwarze 208: case ROFFT_TBL:
1.94 kristaps 209: /* FALLTHROUGH */
1.150 schwarze 210: case ROFFT_TEXT:
1.144 schwarze 211: man_valid_post(man);
1.1 kristaps 212: break;
213: default:
214: break;
215: }
216: }
217:
1.151 schwarze 218: static struct roff_node *
1.153 schwarze 219: man_node_alloc(struct roff_man *man, int line, int pos,
1.151 schwarze 220: enum roff_type type, int tok)
1.1 kristaps 221: {
1.151 schwarze 222: struct roff_node *p;
1.1 kristaps 223:
1.151 schwarze 224: p = mandoc_calloc(1, sizeof(*p));
1.1 kristaps 225: p->line = line;
226: p->pos = pos;
227: p->type = type;
1.16 kristaps 228: p->tok = tok;
1.97 kristaps 229:
1.144 schwarze 230: if (man->flags & MAN_NEWLINE)
1.97 kristaps 231: p->flags |= MAN_LINE;
1.119 schwarze 232: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 233: return(p);
234: }
235:
1.144 schwarze 236: void
1.153 schwarze 237: man_elem_alloc(struct roff_man *man, int line, int pos, int tok)
1.1 kristaps 238: {
1.151 schwarze 239: struct roff_node *p;
1.1 kristaps 240:
1.150 schwarze 241: p = man_node_alloc(man, line, pos, ROFFT_ELEM, tok);
1.144 schwarze 242: man_node_append(man, p);
1.153 schwarze 243: man->next = ROFF_NEXT_CHILD;
1.106 kristaps 244: }
245:
1.144 schwarze 246: void
1.153 schwarze 247: man_head_alloc(struct roff_man *man, int line, int pos, int tok)
1.29 kristaps 248: {
1.151 schwarze 249: struct roff_node *p;
1.29 kristaps 250:
1.150 schwarze 251: p = man_node_alloc(man, line, pos, ROFFT_HEAD, tok);
1.144 schwarze 252: man_node_append(man, p);
1.153 schwarze 253: man->next = ROFF_NEXT_CHILD;
1.29 kristaps 254: }
255:
1.144 schwarze 256: void
1.153 schwarze 257: man_body_alloc(struct roff_man *man, int line, int pos, int tok)
1.29 kristaps 258: {
1.151 schwarze 259: struct roff_node *p;
1.29 kristaps 260:
1.150 schwarze 261: p = man_node_alloc(man, line, pos, ROFFT_BODY, tok);
1.144 schwarze 262: man_node_append(man, p);
1.153 schwarze 263: man->next = ROFF_NEXT_CHILD;
1.29 kristaps 264: }
265:
1.144 schwarze 266: void
1.153 schwarze 267: man_block_alloc(struct roff_man *man, int line, int pos, int tok)
1.29 kristaps 268: {
1.151 schwarze 269: struct roff_node *p;
1.29 kristaps 270:
1.150 schwarze 271: p = man_node_alloc(man, line, pos, ROFFT_BLOCK, tok);
1.144 schwarze 272: man_node_append(man, p);
1.153 schwarze 273: man->next = ROFF_NEXT_CHILD;
1.29 kristaps 274: }
275:
1.144 schwarze 276: void
1.153 schwarze 277: man_word_alloc(struct roff_man *man, int line, int pos, const char *word)
1.1 kristaps 278: {
1.151 schwarze 279: struct roff_node *n;
1.1 kristaps 280:
1.150 schwarze 281: n = man_node_alloc(man, line, pos, ROFFT_TEXT, MAN_MAX);
1.119 schwarze 282: n->string = roff_strdup(man->roff, word);
1.144 schwarze 283: man_node_append(man, n);
1.153 schwarze 284: man->next = ROFF_NEXT_SIBLING;
1.142 schwarze 285: }
286:
287: void
1.153 schwarze 288: man_word_append(struct roff_man *man, const char *word)
1.142 schwarze 289: {
1.151 schwarze 290: struct roff_node *n;
1.142 schwarze 291: char *addstr, *newstr;
292:
293: n = man->last;
294: addstr = roff_strdup(man->roff, word);
295: mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
296: free(addstr);
297: free(n->string);
298: n->string = newstr;
1.153 schwarze 299: man->next = ROFF_NEXT_SIBLING;
1.1 kristaps 300: }
301:
1.54 kristaps 302: /*
303: * Free all of the resources held by a node. This does NOT unlink a
304: * node from its context; for that, see man_node_unlink().
305: */
306: static void
1.151 schwarze 307: man_node_free(struct roff_node *p)
1.1 kristaps 308: {
309:
1.144 schwarze 310: free(p->string);
1.1 kristaps 311: free(p);
312: }
313:
314: void
1.153 schwarze 315: man_node_delete(struct roff_man *man, struct roff_node *p)
1.1 kristaps 316: {
317:
1.54 kristaps 318: while (p->child)
1.119 schwarze 319: man_node_delete(man, p->child);
1.54 kristaps 320:
1.119 schwarze 321: man_node_unlink(man, p);
1.1 kristaps 322: man_node_free(p);
323: }
324:
1.145 schwarze 325: void
1.153 schwarze 326: man_addeqn(struct roff_man *man, const struct eqn *ep)
1.101 kristaps 327: {
1.151 schwarze 328: struct roff_node *n;
1.101 kristaps 329:
1.150 schwarze 330: n = man_node_alloc(man, ep->ln, ep->pos, ROFFT_EQN, MAN_MAX);
1.101 kristaps 331: n->eqn = ep;
1.140 schwarze 332: if (ep->ln > man->last->line)
333: n->flags |= MAN_LINE;
1.144 schwarze 334: man_node_append(man, n);
1.153 schwarze 335: man->next = ROFF_NEXT_SIBLING;
1.144 schwarze 336: man_descope(man, ep->ln, ep->pos);
1.101 kristaps 337: }
1.1 kristaps 338:
1.145 schwarze 339: void
1.153 schwarze 340: man_addspan(struct roff_man *man, const struct tbl_span *sp)
1.94 kristaps 341: {
1.151 schwarze 342: struct roff_node *n;
1.94 kristaps 343:
1.149 schwarze 344: man_breakscope(man, MAN_MAX);
1.150 schwarze 345: n = man_node_alloc(man, sp->line, 0, ROFFT_TBL, MAN_MAX);
1.100 kristaps 346: n->span = sp;
1.144 schwarze 347: man_node_append(man, n);
1.153 schwarze 348: man->next = ROFF_NEXT_SIBLING;
1.144 schwarze 349: man_descope(man, sp->line, 0);
1.94 kristaps 350: }
351:
1.144 schwarze 352: static void
1.153 schwarze 353: man_descope(struct roff_man *man, int line, int offs)
1.94 kristaps 354: {
355: /*
356: * Co-ordinate what happens with having a next-line scope open:
357: * first close out the element scope (if applicable), then close
358: * out the block scope (also if applicable).
359: */
360:
1.144 schwarze 361: if (man->flags & MAN_ELINE) {
1.119 schwarze 362: man->flags &= ~MAN_ELINE;
1.144 schwarze 363: man_unscope(man, man->last->parent);
1.94 kristaps 364: }
1.144 schwarze 365: if ( ! (man->flags & MAN_BLINE))
366: return;
1.119 schwarze 367: man->flags &= ~MAN_BLINE;
1.144 schwarze 368: man_unscope(man, man->last->parent);
369: man_body_alloc(man, line, offs, man->last->tok);
1.94 kristaps 370: }
371:
1.1 kristaps 372: static int
1.153 schwarze 373: man_ptext(struct roff_man *man, int line, char *buf, int offs)
1.1 kristaps 374: {
1.61 kristaps 375: int i;
1.60 kristaps 376:
1.35 kristaps 377: /* Literal free-form text whitespace is preserved. */
378:
1.144 schwarze 379: if (man->flags & MAN_LITERAL) {
380: man_word_alloc(man, line, offs, buf + offs);
381: man_descope(man, line, offs);
382: return(1);
1.35 kristaps 383: }
384:
1.144 schwarze 385: for (i = offs; buf[i] == ' '; i++)
1.31 kristaps 386: /* Skip leading whitespace. */ ;
1.48 kristaps 387:
1.121 schwarze 388: /*
389: * Blank lines are ignored right after headings
390: * but add a single vertical space elsewhere.
391: */
392:
1.144 schwarze 393: if (buf[i] == '\0') {
1.61 kristaps 394: /* Allocate a blank entry. */
1.144 schwarze 395: if (man->last->tok != MAN_SH &&
396: man->last->tok != MAN_SS) {
397: man_elem_alloc(man, line, offs, MAN_sp);
1.153 schwarze 398: man->next = ROFF_NEXT_SIBLING;
1.121 schwarze 399: }
1.118 schwarze 400: return(1);
1.31 kristaps 401: }
402:
1.129 schwarze 403: /*
1.63 kristaps 404: * Warn if the last un-escaped character is whitespace. Then
1.129 schwarze 405: * strip away the remaining spaces (tabs stay!).
1.63 kristaps 406: */
1.29 kristaps 407:
1.61 kristaps 408: i = (int)strlen(buf);
409: assert(i);
1.49 kristaps 410:
1.63 kristaps 411: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
1.64 kristaps 412: if (i > 1 && '\\' != buf[i - 2])
1.131 schwarze 413: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
414: line, i - 1, NULL);
1.63 kristaps 415:
416: for (--i; i && ' ' == buf[i]; i--)
417: /* Spin back to non-space. */ ;
418:
419: /* Jump ahead of escaped whitespace. */
420: i += '\\' == buf[i] ? 2 : 1;
421:
422: buf[i] = '\0';
423: }
1.144 schwarze 424: man_word_alloc(man, line, offs, buf + offs);
1.65 kristaps 425:
426: /*
427: * End-of-sentence check. If the last character is an unescaped
428: * EOS character, then flag the node as being the end of a
429: * sentence. The front-end will know how to interpret this.
430: */
1.67 kristaps 431:
1.65 kristaps 432: assert(i);
1.122 schwarze 433: if (mandoc_eos(buf, (size_t)i))
1.119 schwarze 434: man->last->flags |= MAN_EOS;
1.31 kristaps 435:
1.144 schwarze 436: man_descope(man, line, offs);
437: return(1);
1.1 kristaps 438: }
439:
1.96 kristaps 440: static int
1.153 schwarze 441: man_pmacro(struct roff_man *man, int ln, char *buf, int offs)
1.1 kristaps 442: {
1.151 schwarze 443: struct roff_node *n;
1.143 schwarze 444: const char *cp;
1.151 schwarze 445: int tok;
1.134 schwarze 446: int i, ppos;
447: int bline;
1.143 schwarze 448: char mac[5];
1.1 kristaps 449:
1.107 kristaps 450: ppos = offs;
1.9 kristaps 451:
1.56 kristaps 452: /*
1.107 kristaps 453: * Copy the first word into a nil-terminated buffer.
1.143 schwarze 454: * Stop when a space, tab, escape, or eoln is encountered.
1.56 kristaps 455: */
1.62 kristaps 456:
1.107 kristaps 457: i = 0;
1.143 schwarze 458: while (i < 4 && strchr(" \t\\", buf[offs]) == NULL)
1.107 kristaps 459: mac[i++] = buf[offs++];
1.10 kristaps 460:
1.107 kristaps 461: mac[i] = '\0';
1.1 kristaps 462:
1.107 kristaps 463: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 464:
1.143 schwarze 465: if (tok == MAN_MAX) {
1.136 schwarze 466: mandoc_msg(MANDOCERR_MACRO, man->parse,
467: ln, ppos, buf + ppos - 1);
1.12 kristaps 468: return(1);
1.1 kristaps 469: }
470:
1.143 schwarze 471: /* Skip a leading escape sequence or tab. */
472:
473: switch (buf[offs]) {
474: case '\\':
475: cp = buf + offs + 1;
476: mandoc_escape(&cp, NULL, NULL);
477: offs = cp - buf;
478: break;
479: case '\t':
480: offs++;
481: break;
482: default:
483: break;
484: }
485:
486: /* Jump to the next non-whitespace word. */
1.1 kristaps 487:
1.144 schwarze 488: while (buf[offs] && buf[offs] == ' ')
1.107 kristaps 489: offs++;
1.1 kristaps 490:
1.129 schwarze 491: /*
1.62 kristaps 492: * Trailing whitespace. Note that tabs are allowed to be passed
493: * into the parser as "text", so we only warn about spaces here.
494: */
1.48 kristaps 495:
1.144 schwarze 496: if (buf[offs] == '\0' && buf[offs - 1] == ' ')
1.131 schwarze 497: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
498: ln, offs - 1, NULL);
1.48 kristaps 499:
1.129 schwarze 500: /*
1.149 schwarze 501: * Some macros break next-line scopes; otherwise, remember
502: * whether we are in next-line scope for a block head.
1.50 kristaps 503: */
1.34 kristaps 504:
1.149 schwarze 505: man_breakscope(man, tok);
1.134 schwarze 506: bline = man->flags & MAN_BLINE;
1.59 kristaps 507:
508: /* Call to handler... */
1.1 kristaps 509:
1.53 kristaps 510: assert(man_macros[tok].fp);
1.144 schwarze 511: (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf);
1.123 schwarze 512:
513: /* In quick mode (for mandocdb), abort after the NAME section. */
514:
1.144 schwarze 515: if (man->quick && tok == MAN_SH) {
1.130 schwarze 516: n = man->last;
1.150 schwarze 517: if (n->type == ROFFT_BODY &&
1.130 schwarze 518: strcmp(n->prev->child->string, "NAME"))
519: return(2);
520: }
1.1 kristaps 521:
1.129 schwarze 522: /*
1.135 schwarze 523: * If we are in a next-line scope for a block head,
524: * close it out now and switch to the body,
525: * unless the next-line scope is allowed to continue.
1.29 kristaps 526: */
527:
1.135 schwarze 528: if ( ! bline || man->flags & MAN_ELINE ||
529: man_macros[tok].flags & MAN_NSCOPED)
1.29 kristaps 530: return(1);
531:
1.144 schwarze 532: assert(man->flags & MAN_BLINE);
1.119 schwarze 533: man->flags &= ~MAN_BLINE;
1.11 kristaps 534:
1.144 schwarze 535: man_unscope(man, man->last->parent);
536: man_body_alloc(man, ln, ppos, man->last->tok);
537: return(1);
1.149 schwarze 538: }
539:
540: void
1.153 schwarze 541: man_breakscope(struct roff_man *man, int tok)
1.149 schwarze 542: {
1.151 schwarze 543: struct roff_node *n;
1.149 schwarze 544:
545: /*
546: * An element next line scope is open,
547: * and the new macro is not allowed inside elements.
548: * Delete the element that is being broken.
549: */
550:
551: if (man->flags & MAN_ELINE && (tok == MAN_MAX ||
552: ! (man_macros[tok].flags & MAN_NSCOPED))) {
553: n = man->last;
1.150 schwarze 554: assert(n->type != ROFFT_TEXT);
1.149 schwarze 555: if (man_macros[n->tok].flags & MAN_NSCOPED)
556: n = n->parent;
557:
558: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
559: n->line, n->pos, "%s breaks %s",
560: tok == MAN_MAX ? "TS" : man_macronames[tok],
561: man_macronames[n->tok]);
562:
563: man_node_delete(man, n);
564: man->flags &= ~MAN_ELINE;
565: }
566:
567: /*
568: * A block header next line scope is open,
569: * and the new macro is not allowed inside block headers.
570: * Delete the block that is being broken.
571: */
572:
573: if (man->flags & MAN_BLINE && (tok == MAN_MAX ||
574: man_macros[tok].flags & MAN_BSCOPE)) {
575: n = man->last;
1.150 schwarze 576: if (n->type == ROFFT_TEXT)
1.149 schwarze 577: n = n->parent;
578: if ( ! (man_macros[n->tok].flags & MAN_BSCOPE))
579: n = n->parent;
580:
1.150 schwarze 581: assert(n->type == ROFFT_HEAD);
1.149 schwarze 582: n = n->parent;
1.150 schwarze 583: assert(n->type == ROFFT_BLOCK);
1.149 schwarze 584: assert(man_macros[n->tok].flags & MAN_SCOPED);
585:
586: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
587: n->line, n->pos, "%s breaks %s",
588: tok == MAN_MAX ? "TS" : man_macronames[tok],
589: man_macronames[n->tok]);
590:
591: man_node_delete(man, n);
592: man->flags &= ~MAN_BLINE;
593: }
1.1 kristaps 594: }
1.51 kristaps 595:
1.54 kristaps 596: /*
1.119 schwarze 597: * Unlink a node from its context. If "man" is provided, the last parse
1.54 kristaps 598: * point will also be adjusted accordingly.
599: */
600: static void
1.153 schwarze 601: man_node_unlink(struct roff_man *man, struct roff_node *n)
1.51 kristaps 602: {
603:
1.54 kristaps 604: /* Adjust siblings. */
605:
606: if (n->prev)
1.51 kristaps 607: n->prev->next = n->next;
1.54 kristaps 608: if (n->next)
609: n->next->prev = n->prev;
610:
611: /* Adjust parent. */
612:
613: if (n->parent) {
614: n->parent->nchild--;
615: if (n->parent->child == n)
616: n->parent->child = n->prev ? n->prev : n->next;
617: }
618:
619: /* Adjust parse point, if applicable. */
620:
1.119 schwarze 621: if (man && man->last == n) {
1.54 kristaps 622: /*XXX: this can occur when bailing from validation. */
623: /*assert(NULL == n->next);*/
624: if (n->prev) {
1.119 schwarze 625: man->last = n->prev;
1.153 schwarze 626: man->next = ROFF_NEXT_SIBLING;
1.54 kristaps 627: } else {
1.119 schwarze 628: man->last = n->parent;
1.153 schwarze 629: man->next = ROFF_NEXT_CHILD;
1.51 kristaps 630: }
631: }
632:
1.119 schwarze 633: if (man && man->first == n)
634: man->first = NULL;
1.112 kristaps 635: }
636:
637: const struct mparse *
1.153 schwarze 638: man_mparse(const struct roff_man *man)
1.112 kristaps 639: {
640:
1.119 schwarze 641: assert(man && man->parse);
642: return(man->parse);
1.126 schwarze 643: }
644:
645: void
1.151 schwarze 646: man_deroff(char **dest, const struct roff_node *n)
1.126 schwarze 647: {
648: char *cp;
649: size_t sz;
650:
1.150 schwarze 651: if (n->type != ROFFT_TEXT) {
1.126 schwarze 652: for (n = n->child; n; n = n->next)
653: man_deroff(dest, n);
654: return;
655: }
656:
1.127 schwarze 657: /* Skip leading whitespace and escape sequences. */
1.126 schwarze 658:
1.127 schwarze 659: cp = n->string;
660: while ('\0' != *cp) {
661: if ('\\' == *cp) {
662: cp++;
663: mandoc_escape((const char **)&cp, NULL, NULL);
664: } else if (isspace((unsigned char)*cp))
665: cp++;
666: else
1.126 schwarze 667: break;
1.127 schwarze 668: }
1.126 schwarze 669:
670: /* Skip trailing whitespace. */
671:
672: for (sz = strlen(cp); sz; sz--)
673: if (0 == isspace((unsigned char)cp[sz-1]))
674: break;
675:
676: /* Skip empty strings. */
677:
678: if (0 == sz)
679: return;
680:
681: if (NULL == *dest) {
682: *dest = mandoc_strndup(cp, sz);
683: return;
684: }
685:
686: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
687: free(*dest);
688: *dest = cp;
1.23 kristaps 689: }
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