Annotation of mandoc/man.c, Revision 1.155
1.155 ! schwarze 1: /* $Id: man.c,v 1.154 2015/04/18 16:34:25 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));
1.104 kristaps 104: p->parse = parse;
1.146 schwarze 105: p->defos = defos;
1.123 schwarze 106: p->quick = quick;
1.108 kristaps 107: p->roff = roff;
1.45 kristaps 108:
109: man_alloc1(p);
1.1 kristaps 110: return(p);
111: }
112:
1.147 schwarze 113: void
1.153 schwarze 114: man_endparse(struct roff_man *man)
1.1 kristaps 115: {
116:
1.144 schwarze 117: man_macroend(man);
1.1 kristaps 118: }
119:
120: int
1.153 schwarze 121: man_parseln(struct roff_man *man, int ln, char *buf, int offs)
1.1 kristaps 122: {
123:
1.150 schwarze 124: if (man->last->type != ROFFT_EQN || ln > man->last->line)
1.141 schwarze 125: man->flags |= MAN_NEWLINE;
1.97 kristaps 126:
1.119 schwarze 127: return (roff_getcontrol(man->roff, buf, &offs) ?
1.129 schwarze 128: man_pmacro(man, ln, buf, offs) :
129: man_ptext(man, ln, buf, offs));
1.1 kristaps 130: }
131:
1.2 kristaps 132: static void
1.153 schwarze 133: man_free1(struct roff_man *man)
1.2 kristaps 134: {
135:
136: if (man->first)
1.54 kristaps 137: man_node_delete(man, man->first);
1.144 schwarze 138: free(man->meta.title);
1.152 schwarze 139: free(man->meta.os);
1.144 schwarze 140: free(man->meta.date);
141: free(man->meta.vol);
142: free(man->meta.msec);
1.2 kristaps 143: }
144:
1.45 kristaps 145: static void
1.153 schwarze 146: man_alloc1(struct roff_man *man)
1.2 kristaps 147: {
148:
1.152 schwarze 149: memset(&man->meta, 0, sizeof(man->meta));
1.154 schwarze 150: man->macroset = MACROSET_MAN;
1.119 schwarze 151: man->flags = 0;
1.151 schwarze 152: man->last = mandoc_calloc(1, sizeof(*man->last));
1.119 schwarze 153: man->first = man->last;
1.150 schwarze 154: man->last->type = ROFFT_ROOT;
1.119 schwarze 155: man->last->tok = MAN_MAX;
1.153 schwarze 156: man->next = ROFF_NEXT_CHILD;
1.2 kristaps 157: }
158:
159:
1.144 schwarze 160: static void
1.153 schwarze 161: man_node_append(struct roff_man *man, struct roff_node *p)
1.1 kristaps 162: {
163:
164: assert(man->last);
165: assert(man->first);
1.150 schwarze 166: assert(p->type != ROFFT_ROOT);
1.1 kristaps 167:
168: switch (man->next) {
1.153 schwarze 169: case ROFF_NEXT_SIBLING:
1.1 kristaps 170: man->last->next = p;
171: p->prev = man->last;
172: p->parent = man->last->parent;
173: break;
1.153 schwarze 174: case ROFF_NEXT_CHILD:
1.1 kristaps 175: man->last->child = p;
176: p->parent = man->last;
177: break;
178: default:
179: abort();
180: /* NOTREACHED */
181: }
1.129 schwarze 182:
1.54 kristaps 183: assert(p->parent);
1.22 kristaps 184: p->parent->nchild++;
1.1 kristaps 185:
1.29 kristaps 186: switch (p->type) {
1.150 schwarze 187: case ROFFT_BLOCK:
1.137 schwarze 188: if (p->tok == MAN_SH || p->tok == MAN_SS)
189: man->flags &= ~MAN_LITERAL;
190: break;
1.150 schwarze 191: case ROFFT_HEAD:
192: assert(p->parent->type == ROFFT_BLOCK);
1.29 kristaps 193: p->parent->head = p;
194: break;
1.150 schwarze 195: case ROFFT_BODY:
196: assert(p->parent->type == ROFFT_BLOCK);
1.29 kristaps 197: p->parent->body = p;
198: break;
199: default:
200: break;
201: }
202:
1.2 kristaps 203: man->last = p;
204:
1.1 kristaps 205: switch (p->type) {
1.150 schwarze 206: case ROFFT_TBL:
1.94 kristaps 207: /* FALLTHROUGH */
1.150 schwarze 208: case ROFFT_TEXT:
1.144 schwarze 209: man_valid_post(man);
1.1 kristaps 210: break;
211: default:
212: break;
213: }
214: }
215:
1.151 schwarze 216: static struct roff_node *
1.153 schwarze 217: man_node_alloc(struct roff_man *man, int line, int pos,
1.151 schwarze 218: enum roff_type type, int tok)
1.1 kristaps 219: {
1.151 schwarze 220: struct roff_node *p;
1.1 kristaps 221:
1.151 schwarze 222: p = mandoc_calloc(1, sizeof(*p));
1.1 kristaps 223: p->line = line;
224: p->pos = pos;
225: p->type = type;
1.16 kristaps 226: p->tok = tok;
1.97 kristaps 227:
1.144 schwarze 228: if (man->flags & MAN_NEWLINE)
1.97 kristaps 229: p->flags |= MAN_LINE;
1.119 schwarze 230: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 231: return(p);
232: }
233:
1.144 schwarze 234: void
1.153 schwarze 235: man_elem_alloc(struct roff_man *man, int line, int pos, int tok)
1.1 kristaps 236: {
1.151 schwarze 237: struct roff_node *p;
1.1 kristaps 238:
1.150 schwarze 239: p = man_node_alloc(man, line, pos, ROFFT_ELEM, tok);
1.144 schwarze 240: man_node_append(man, p);
1.153 schwarze 241: man->next = ROFF_NEXT_CHILD;
1.106 kristaps 242: }
243:
1.144 schwarze 244: void
1.153 schwarze 245: man_head_alloc(struct roff_man *man, int line, int pos, int tok)
1.29 kristaps 246: {
1.151 schwarze 247: struct roff_node *p;
1.29 kristaps 248:
1.150 schwarze 249: p = man_node_alloc(man, line, pos, ROFFT_HEAD, tok);
1.144 schwarze 250: man_node_append(man, p);
1.153 schwarze 251: man->next = ROFF_NEXT_CHILD;
1.29 kristaps 252: }
253:
1.144 schwarze 254: void
1.153 schwarze 255: man_body_alloc(struct roff_man *man, int line, int pos, int tok)
1.29 kristaps 256: {
1.151 schwarze 257: struct roff_node *p;
1.29 kristaps 258:
1.150 schwarze 259: p = man_node_alloc(man, line, pos, ROFFT_BODY, tok);
1.144 schwarze 260: man_node_append(man, p);
1.153 schwarze 261: man->next = ROFF_NEXT_CHILD;
1.29 kristaps 262: }
263:
1.144 schwarze 264: void
1.153 schwarze 265: man_block_alloc(struct roff_man *man, int line, int pos, int tok)
1.29 kristaps 266: {
1.151 schwarze 267: struct roff_node *p;
1.29 kristaps 268:
1.150 schwarze 269: p = man_node_alloc(man, line, pos, ROFFT_BLOCK, tok);
1.144 schwarze 270: man_node_append(man, p);
1.153 schwarze 271: man->next = ROFF_NEXT_CHILD;
1.29 kristaps 272: }
273:
1.144 schwarze 274: void
1.153 schwarze 275: man_word_alloc(struct roff_man *man, int line, int pos, const char *word)
1.1 kristaps 276: {
1.151 schwarze 277: struct roff_node *n;
1.1 kristaps 278:
1.150 schwarze 279: n = man_node_alloc(man, line, pos, ROFFT_TEXT, MAN_MAX);
1.119 schwarze 280: n->string = roff_strdup(man->roff, word);
1.144 schwarze 281: man_node_append(man, n);
1.153 schwarze 282: man->next = ROFF_NEXT_SIBLING;
1.142 schwarze 283: }
284:
285: void
1.153 schwarze 286: man_word_append(struct roff_man *man, const char *word)
1.142 schwarze 287: {
1.151 schwarze 288: struct roff_node *n;
1.142 schwarze 289: char *addstr, *newstr;
290:
291: n = man->last;
292: addstr = roff_strdup(man->roff, word);
293: mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
294: free(addstr);
295: free(n->string);
296: n->string = newstr;
1.153 schwarze 297: man->next = ROFF_NEXT_SIBLING;
1.1 kristaps 298: }
299:
1.54 kristaps 300: /*
301: * Free all of the resources held by a node. This does NOT unlink a
302: * node from its context; for that, see man_node_unlink().
303: */
304: static void
1.151 schwarze 305: man_node_free(struct roff_node *p)
1.1 kristaps 306: {
307:
1.144 schwarze 308: free(p->string);
1.1 kristaps 309: free(p);
310: }
311:
312: void
1.153 schwarze 313: man_node_delete(struct roff_man *man, struct roff_node *p)
1.1 kristaps 314: {
315:
1.54 kristaps 316: while (p->child)
1.119 schwarze 317: man_node_delete(man, p->child);
1.54 kristaps 318:
1.119 schwarze 319: man_node_unlink(man, p);
1.1 kristaps 320: man_node_free(p);
321: }
322:
1.145 schwarze 323: void
1.153 schwarze 324: man_addeqn(struct roff_man *man, const struct eqn *ep)
1.101 kristaps 325: {
1.151 schwarze 326: struct roff_node *n;
1.101 kristaps 327:
1.150 schwarze 328: n = man_node_alloc(man, ep->ln, ep->pos, ROFFT_EQN, MAN_MAX);
1.101 kristaps 329: n->eqn = ep;
1.140 schwarze 330: if (ep->ln > man->last->line)
331: n->flags |= MAN_LINE;
1.144 schwarze 332: man_node_append(man, n);
1.153 schwarze 333: man->next = ROFF_NEXT_SIBLING;
1.144 schwarze 334: man_descope(man, ep->ln, ep->pos);
1.101 kristaps 335: }
1.1 kristaps 336:
1.145 schwarze 337: void
1.153 schwarze 338: man_addspan(struct roff_man *man, const struct tbl_span *sp)
1.94 kristaps 339: {
1.151 schwarze 340: struct roff_node *n;
1.94 kristaps 341:
1.149 schwarze 342: man_breakscope(man, MAN_MAX);
1.150 schwarze 343: n = man_node_alloc(man, sp->line, 0, ROFFT_TBL, MAN_MAX);
1.100 kristaps 344: n->span = sp;
1.144 schwarze 345: man_node_append(man, n);
1.153 schwarze 346: man->next = ROFF_NEXT_SIBLING;
1.144 schwarze 347: man_descope(man, sp->line, 0);
1.94 kristaps 348: }
349:
1.144 schwarze 350: static void
1.153 schwarze 351: man_descope(struct roff_man *man, int line, int offs)
1.94 kristaps 352: {
353: /*
354: * Co-ordinate what happens with having a next-line scope open:
355: * first close out the element scope (if applicable), then close
356: * out the block scope (also if applicable).
357: */
358:
1.144 schwarze 359: if (man->flags & MAN_ELINE) {
1.119 schwarze 360: man->flags &= ~MAN_ELINE;
1.144 schwarze 361: man_unscope(man, man->last->parent);
1.94 kristaps 362: }
1.144 schwarze 363: if ( ! (man->flags & MAN_BLINE))
364: return;
1.119 schwarze 365: man->flags &= ~MAN_BLINE;
1.144 schwarze 366: man_unscope(man, man->last->parent);
367: man_body_alloc(man, line, offs, man->last->tok);
1.94 kristaps 368: }
369:
1.1 kristaps 370: static int
1.153 schwarze 371: man_ptext(struct roff_man *man, int line, char *buf, int offs)
1.1 kristaps 372: {
1.61 kristaps 373: int i;
1.60 kristaps 374:
1.35 kristaps 375: /* Literal free-form text whitespace is preserved. */
376:
1.144 schwarze 377: if (man->flags & MAN_LITERAL) {
378: man_word_alloc(man, line, offs, buf + offs);
379: man_descope(man, line, offs);
380: return(1);
1.35 kristaps 381: }
382:
1.144 schwarze 383: for (i = offs; buf[i] == ' '; i++)
1.31 kristaps 384: /* Skip leading whitespace. */ ;
1.48 kristaps 385:
1.121 schwarze 386: /*
387: * Blank lines are ignored right after headings
388: * but add a single vertical space elsewhere.
389: */
390:
1.144 schwarze 391: if (buf[i] == '\0') {
1.61 kristaps 392: /* Allocate a blank entry. */
1.144 schwarze 393: if (man->last->tok != MAN_SH &&
394: man->last->tok != MAN_SS) {
395: man_elem_alloc(man, line, offs, MAN_sp);
1.153 schwarze 396: man->next = ROFF_NEXT_SIBLING;
1.121 schwarze 397: }
1.118 schwarze 398: return(1);
1.31 kristaps 399: }
400:
1.129 schwarze 401: /*
1.63 kristaps 402: * Warn if the last un-escaped character is whitespace. Then
1.129 schwarze 403: * strip away the remaining spaces (tabs stay!).
1.63 kristaps 404: */
1.29 kristaps 405:
1.61 kristaps 406: i = (int)strlen(buf);
407: assert(i);
1.49 kristaps 408:
1.63 kristaps 409: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
1.64 kristaps 410: if (i > 1 && '\\' != buf[i - 2])
1.131 schwarze 411: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
412: line, i - 1, NULL);
1.63 kristaps 413:
414: for (--i; i && ' ' == buf[i]; i--)
415: /* Spin back to non-space. */ ;
416:
417: /* Jump ahead of escaped whitespace. */
418: i += '\\' == buf[i] ? 2 : 1;
419:
420: buf[i] = '\0';
421: }
1.144 schwarze 422: man_word_alloc(man, line, offs, buf + offs);
1.65 kristaps 423:
424: /*
425: * End-of-sentence check. If the last character is an unescaped
426: * EOS character, then flag the node as being the end of a
427: * sentence. The front-end will know how to interpret this.
428: */
1.67 kristaps 429:
1.65 kristaps 430: assert(i);
1.122 schwarze 431: if (mandoc_eos(buf, (size_t)i))
1.119 schwarze 432: man->last->flags |= MAN_EOS;
1.31 kristaps 433:
1.144 schwarze 434: man_descope(man, line, offs);
435: return(1);
1.1 kristaps 436: }
437:
1.96 kristaps 438: static int
1.153 schwarze 439: man_pmacro(struct roff_man *man, int ln, char *buf, int offs)
1.1 kristaps 440: {
1.151 schwarze 441: struct roff_node *n;
1.143 schwarze 442: const char *cp;
1.151 schwarze 443: int tok;
1.134 schwarze 444: int i, ppos;
445: int bline;
1.143 schwarze 446: char mac[5];
1.1 kristaps 447:
1.107 kristaps 448: ppos = offs;
1.9 kristaps 449:
1.56 kristaps 450: /*
1.107 kristaps 451: * Copy the first word into a nil-terminated buffer.
1.143 schwarze 452: * Stop when a space, tab, escape, or eoln is encountered.
1.56 kristaps 453: */
1.62 kristaps 454:
1.107 kristaps 455: i = 0;
1.143 schwarze 456: while (i < 4 && strchr(" \t\\", buf[offs]) == NULL)
1.107 kristaps 457: mac[i++] = buf[offs++];
1.10 kristaps 458:
1.107 kristaps 459: mac[i] = '\0';
1.1 kristaps 460:
1.107 kristaps 461: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 462:
1.143 schwarze 463: if (tok == MAN_MAX) {
1.136 schwarze 464: mandoc_msg(MANDOCERR_MACRO, man->parse,
465: ln, ppos, buf + ppos - 1);
1.12 kristaps 466: return(1);
1.1 kristaps 467: }
468:
1.143 schwarze 469: /* Skip a leading escape sequence or tab. */
470:
471: switch (buf[offs]) {
472: case '\\':
473: cp = buf + offs + 1;
474: mandoc_escape(&cp, NULL, NULL);
475: offs = cp - buf;
476: break;
477: case '\t':
478: offs++;
479: break;
480: default:
481: break;
482: }
483:
484: /* Jump to the next non-whitespace word. */
1.1 kristaps 485:
1.144 schwarze 486: while (buf[offs] && buf[offs] == ' ')
1.107 kristaps 487: offs++;
1.1 kristaps 488:
1.129 schwarze 489: /*
1.62 kristaps 490: * Trailing whitespace. Note that tabs are allowed to be passed
491: * into the parser as "text", so we only warn about spaces here.
492: */
1.48 kristaps 493:
1.144 schwarze 494: if (buf[offs] == '\0' && buf[offs - 1] == ' ')
1.131 schwarze 495: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
496: ln, offs - 1, NULL);
1.48 kristaps 497:
1.129 schwarze 498: /*
1.149 schwarze 499: * Some macros break next-line scopes; otherwise, remember
500: * whether we are in next-line scope for a block head.
1.50 kristaps 501: */
1.34 kristaps 502:
1.149 schwarze 503: man_breakscope(man, tok);
1.134 schwarze 504: bline = man->flags & MAN_BLINE;
1.59 kristaps 505:
506: /* Call to handler... */
1.1 kristaps 507:
1.53 kristaps 508: assert(man_macros[tok].fp);
1.144 schwarze 509: (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf);
1.123 schwarze 510:
511: /* In quick mode (for mandocdb), abort after the NAME section. */
512:
1.144 schwarze 513: if (man->quick && tok == MAN_SH) {
1.130 schwarze 514: n = man->last;
1.150 schwarze 515: if (n->type == ROFFT_BODY &&
1.130 schwarze 516: strcmp(n->prev->child->string, "NAME"))
517: return(2);
518: }
1.1 kristaps 519:
1.129 schwarze 520: /*
1.135 schwarze 521: * If we are in a next-line scope for a block head,
522: * close it out now and switch to the body,
523: * unless the next-line scope is allowed to continue.
1.29 kristaps 524: */
525:
1.135 schwarze 526: if ( ! bline || man->flags & MAN_ELINE ||
527: man_macros[tok].flags & MAN_NSCOPED)
1.29 kristaps 528: return(1);
529:
1.144 schwarze 530: assert(man->flags & MAN_BLINE);
1.119 schwarze 531: man->flags &= ~MAN_BLINE;
1.11 kristaps 532:
1.144 schwarze 533: man_unscope(man, man->last->parent);
534: man_body_alloc(man, ln, ppos, man->last->tok);
535: return(1);
1.149 schwarze 536: }
537:
538: void
1.153 schwarze 539: man_breakscope(struct roff_man *man, int tok)
1.149 schwarze 540: {
1.151 schwarze 541: struct roff_node *n;
1.149 schwarze 542:
543: /*
544: * An element next line scope is open,
545: * and the new macro is not allowed inside elements.
546: * Delete the element that is being broken.
547: */
548:
549: if (man->flags & MAN_ELINE && (tok == MAN_MAX ||
550: ! (man_macros[tok].flags & MAN_NSCOPED))) {
551: n = man->last;
1.150 schwarze 552: assert(n->type != ROFFT_TEXT);
1.149 schwarze 553: if (man_macros[n->tok].flags & MAN_NSCOPED)
554: n = n->parent;
555:
556: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
557: n->line, n->pos, "%s breaks %s",
558: tok == MAN_MAX ? "TS" : man_macronames[tok],
559: man_macronames[n->tok]);
560:
561: man_node_delete(man, n);
562: man->flags &= ~MAN_ELINE;
563: }
564:
565: /*
566: * A block header next line scope is open,
567: * and the new macro is not allowed inside block headers.
568: * Delete the block that is being broken.
569: */
570:
571: if (man->flags & MAN_BLINE && (tok == MAN_MAX ||
572: man_macros[tok].flags & MAN_BSCOPE)) {
573: n = man->last;
1.150 schwarze 574: if (n->type == ROFFT_TEXT)
1.149 schwarze 575: n = n->parent;
576: if ( ! (man_macros[n->tok].flags & MAN_BSCOPE))
577: n = n->parent;
578:
1.150 schwarze 579: assert(n->type == ROFFT_HEAD);
1.149 schwarze 580: n = n->parent;
1.150 schwarze 581: assert(n->type == ROFFT_BLOCK);
1.149 schwarze 582: assert(man_macros[n->tok].flags & MAN_SCOPED);
583:
584: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
585: n->line, n->pos, "%s breaks %s",
586: tok == MAN_MAX ? "TS" : man_macronames[tok],
587: man_macronames[n->tok]);
588:
589: man_node_delete(man, n);
590: man->flags &= ~MAN_BLINE;
591: }
1.1 kristaps 592: }
1.51 kristaps 593:
1.54 kristaps 594: /*
1.119 schwarze 595: * Unlink a node from its context. If "man" is provided, the last parse
1.54 kristaps 596: * point will also be adjusted accordingly.
597: */
598: static void
1.153 schwarze 599: man_node_unlink(struct roff_man *man, struct roff_node *n)
1.51 kristaps 600: {
601:
1.54 kristaps 602: /* Adjust siblings. */
603:
604: if (n->prev)
1.51 kristaps 605: n->prev->next = n->next;
1.54 kristaps 606: if (n->next)
607: n->next->prev = n->prev;
608:
609: /* Adjust parent. */
610:
611: if (n->parent) {
612: n->parent->nchild--;
613: if (n->parent->child == n)
614: n->parent->child = n->prev ? n->prev : n->next;
615: }
616:
617: /* Adjust parse point, if applicable. */
618:
1.119 schwarze 619: if (man && man->last == n) {
1.54 kristaps 620: /*XXX: this can occur when bailing from validation. */
621: /*assert(NULL == n->next);*/
622: if (n->prev) {
1.119 schwarze 623: man->last = n->prev;
1.153 schwarze 624: man->next = ROFF_NEXT_SIBLING;
1.54 kristaps 625: } else {
1.119 schwarze 626: man->last = n->parent;
1.153 schwarze 627: man->next = ROFF_NEXT_CHILD;
1.51 kristaps 628: }
629: }
630:
1.119 schwarze 631: if (man && man->first == n)
632: man->first = NULL;
1.112 kristaps 633: }
634:
635: const struct mparse *
1.153 schwarze 636: man_mparse(const struct roff_man *man)
1.112 kristaps 637: {
638:
1.119 schwarze 639: assert(man && man->parse);
640: return(man->parse);
1.126 schwarze 641: }
642:
643: void
1.151 schwarze 644: man_deroff(char **dest, const struct roff_node *n)
1.126 schwarze 645: {
646: char *cp;
647: size_t sz;
648:
1.150 schwarze 649: if (n->type != ROFFT_TEXT) {
1.126 schwarze 650: for (n = n->child; n; n = n->next)
651: man_deroff(dest, n);
652: return;
653: }
654:
1.127 schwarze 655: /* Skip leading whitespace and escape sequences. */
1.126 schwarze 656:
1.127 schwarze 657: cp = n->string;
658: while ('\0' != *cp) {
659: if ('\\' == *cp) {
660: cp++;
661: mandoc_escape((const char **)&cp, NULL, NULL);
662: } else if (isspace((unsigned char)*cp))
663: cp++;
664: else
1.126 schwarze 665: break;
1.127 schwarze 666: }
1.126 schwarze 667:
668: /* Skip trailing whitespace. */
669:
670: for (sz = strlen(cp); sz; sz--)
671: if (0 == isspace((unsigned char)cp[sz-1]))
672: break;
673:
674: /* Skip empty strings. */
675:
676: if (0 == sz)
677: return;
678:
679: if (NULL == *dest) {
680: *dest = mandoc_strndup(cp, sz);
681: return;
682: }
683:
684: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
685: free(*dest);
686: *dest = cp;
1.23 kristaps 687: }
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