Annotation of mandoc/man.c, Revision 1.153
1.153 ! schwarze 1: /* $Id: man.c,v 1.152 2015/04/02 23:48:19 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));
1.119 schwarze 152: man->flags = 0;
1.151 schwarze 153: man->last = mandoc_calloc(1, sizeof(*man->last));
1.119 schwarze 154: man->first = man->last;
1.150 schwarze 155: man->last->type = ROFFT_ROOT;
1.119 schwarze 156: man->last->tok = MAN_MAX;
1.153 ! schwarze 157: man->next = ROFF_NEXT_CHILD;
1.2 kristaps 158: }
159:
160:
1.144 schwarze 161: static void
1.153 ! schwarze 162: man_node_append(struct roff_man *man, struct roff_node *p)
1.1 kristaps 163: {
164:
165: assert(man->last);
166: assert(man->first);
1.150 schwarze 167: assert(p->type != ROFFT_ROOT);
1.1 kristaps 168:
169: switch (man->next) {
1.153 ! schwarze 170: case ROFF_NEXT_SIBLING:
1.1 kristaps 171: man->last->next = p;
172: p->prev = man->last;
173: p->parent = man->last->parent;
174: break;
1.153 ! schwarze 175: case ROFF_NEXT_CHILD:
1.1 kristaps 176: man->last->child = p;
177: p->parent = man->last;
178: break;
179: default:
180: abort();
181: /* NOTREACHED */
182: }
1.129 schwarze 183:
1.54 kristaps 184: assert(p->parent);
1.22 kristaps 185: p->parent->nchild++;
1.1 kristaps 186:
1.29 kristaps 187: switch (p->type) {
1.150 schwarze 188: case ROFFT_BLOCK:
1.137 schwarze 189: if (p->tok == MAN_SH || p->tok == MAN_SS)
190: man->flags &= ~MAN_LITERAL;
191: break;
1.150 schwarze 192: case ROFFT_HEAD:
193: assert(p->parent->type == ROFFT_BLOCK);
1.29 kristaps 194: p->parent->head = p;
195: break;
1.150 schwarze 196: case ROFFT_BODY:
197: assert(p->parent->type == ROFFT_BLOCK);
1.29 kristaps 198: p->parent->body = p;
199: break;
200: default:
201: break;
202: }
203:
1.2 kristaps 204: man->last = p;
205:
1.1 kristaps 206: switch (p->type) {
1.150 schwarze 207: case ROFFT_TBL:
1.94 kristaps 208: /* FALLTHROUGH */
1.150 schwarze 209: case ROFFT_TEXT:
1.144 schwarze 210: man_valid_post(man);
1.1 kristaps 211: break;
212: default:
213: break;
214: }
215: }
216:
1.151 schwarze 217: static struct roff_node *
1.153 ! schwarze 218: man_node_alloc(struct roff_man *man, int line, int pos,
1.151 schwarze 219: enum roff_type type, int tok)
1.1 kristaps 220: {
1.151 schwarze 221: struct roff_node *p;
1.1 kristaps 222:
1.151 schwarze 223: p = mandoc_calloc(1, sizeof(*p));
1.1 kristaps 224: p->line = line;
225: p->pos = pos;
226: p->type = type;
1.16 kristaps 227: p->tok = tok;
1.97 kristaps 228:
1.144 schwarze 229: if (man->flags & MAN_NEWLINE)
1.97 kristaps 230: p->flags |= MAN_LINE;
1.119 schwarze 231: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 232: return(p);
233: }
234:
1.144 schwarze 235: void
1.153 ! schwarze 236: man_elem_alloc(struct roff_man *man, int line, int pos, int tok)
1.1 kristaps 237: {
1.151 schwarze 238: struct roff_node *p;
1.1 kristaps 239:
1.150 schwarze 240: p = man_node_alloc(man, line, pos, ROFFT_ELEM, tok);
1.144 schwarze 241: man_node_append(man, p);
1.153 ! schwarze 242: man->next = ROFF_NEXT_CHILD;
1.106 kristaps 243: }
244:
1.144 schwarze 245: void
1.153 ! schwarze 246: man_head_alloc(struct roff_man *man, int line, int pos, int tok)
1.29 kristaps 247: {
1.151 schwarze 248: struct roff_node *p;
1.29 kristaps 249:
1.150 schwarze 250: p = man_node_alloc(man, line, pos, ROFFT_HEAD, tok);
1.144 schwarze 251: man_node_append(man, p);
1.153 ! schwarze 252: man->next = ROFF_NEXT_CHILD;
1.29 kristaps 253: }
254:
1.144 schwarze 255: void
1.153 ! schwarze 256: man_body_alloc(struct roff_man *man, int line, int pos, int tok)
1.29 kristaps 257: {
1.151 schwarze 258: struct roff_node *p;
1.29 kristaps 259:
1.150 schwarze 260: p = man_node_alloc(man, line, pos, ROFFT_BODY, tok);
1.144 schwarze 261: man_node_append(man, p);
1.153 ! schwarze 262: man->next = ROFF_NEXT_CHILD;
1.29 kristaps 263: }
264:
1.144 schwarze 265: void
1.153 ! schwarze 266: man_block_alloc(struct roff_man *man, int line, int pos, int tok)
1.29 kristaps 267: {
1.151 schwarze 268: struct roff_node *p;
1.29 kristaps 269:
1.150 schwarze 270: p = man_node_alloc(man, line, pos, ROFFT_BLOCK, tok);
1.144 schwarze 271: man_node_append(man, p);
1.153 ! schwarze 272: man->next = ROFF_NEXT_CHILD;
1.29 kristaps 273: }
274:
1.144 schwarze 275: void
1.153 ! schwarze 276: man_word_alloc(struct roff_man *man, int line, int pos, const char *word)
1.1 kristaps 277: {
1.151 schwarze 278: struct roff_node *n;
1.1 kristaps 279:
1.150 schwarze 280: n = man_node_alloc(man, line, pos, ROFFT_TEXT, MAN_MAX);
1.119 schwarze 281: n->string = roff_strdup(man->roff, word);
1.144 schwarze 282: man_node_append(man, n);
1.153 ! schwarze 283: man->next = ROFF_NEXT_SIBLING;
1.142 schwarze 284: }
285:
286: void
1.153 ! schwarze 287: man_word_append(struct roff_man *man, const char *word)
1.142 schwarze 288: {
1.151 schwarze 289: struct roff_node *n;
1.142 schwarze 290: char *addstr, *newstr;
291:
292: n = man->last;
293: addstr = roff_strdup(man->roff, word);
294: mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
295: free(addstr);
296: free(n->string);
297: n->string = newstr;
1.153 ! schwarze 298: man->next = ROFF_NEXT_SIBLING;
1.1 kristaps 299: }
300:
1.54 kristaps 301: /*
302: * Free all of the resources held by a node. This does NOT unlink a
303: * node from its context; for that, see man_node_unlink().
304: */
305: static void
1.151 schwarze 306: man_node_free(struct roff_node *p)
1.1 kristaps 307: {
308:
1.144 schwarze 309: free(p->string);
1.1 kristaps 310: free(p);
311: }
312:
313: void
1.153 ! schwarze 314: man_node_delete(struct roff_man *man, struct roff_node *p)
1.1 kristaps 315: {
316:
1.54 kristaps 317: while (p->child)
1.119 schwarze 318: man_node_delete(man, p->child);
1.54 kristaps 319:
1.119 schwarze 320: man_node_unlink(man, p);
1.1 kristaps 321: man_node_free(p);
322: }
323:
1.145 schwarze 324: void
1.153 ! schwarze 325: man_addeqn(struct roff_man *man, const struct eqn *ep)
1.101 kristaps 326: {
1.151 schwarze 327: struct roff_node *n;
1.101 kristaps 328:
1.150 schwarze 329: n = man_node_alloc(man, ep->ln, ep->pos, ROFFT_EQN, MAN_MAX);
1.101 kristaps 330: n->eqn = ep;
1.140 schwarze 331: if (ep->ln > man->last->line)
332: n->flags |= MAN_LINE;
1.144 schwarze 333: man_node_append(man, n);
1.153 ! schwarze 334: man->next = ROFF_NEXT_SIBLING;
1.144 schwarze 335: man_descope(man, ep->ln, ep->pos);
1.101 kristaps 336: }
1.1 kristaps 337:
1.145 schwarze 338: void
1.153 ! schwarze 339: man_addspan(struct roff_man *man, const struct tbl_span *sp)
1.94 kristaps 340: {
1.151 schwarze 341: struct roff_node *n;
1.94 kristaps 342:
1.149 schwarze 343: man_breakscope(man, MAN_MAX);
1.150 schwarze 344: n = man_node_alloc(man, sp->line, 0, ROFFT_TBL, MAN_MAX);
1.100 kristaps 345: n->span = sp;
1.144 schwarze 346: man_node_append(man, n);
1.153 ! schwarze 347: man->next = ROFF_NEXT_SIBLING;
1.144 schwarze 348: man_descope(man, sp->line, 0);
1.94 kristaps 349: }
350:
1.144 schwarze 351: static void
1.153 ! schwarze 352: man_descope(struct roff_man *man, int line, int offs)
1.94 kristaps 353: {
354: /*
355: * Co-ordinate what happens with having a next-line scope open:
356: * first close out the element scope (if applicable), then close
357: * out the block scope (also if applicable).
358: */
359:
1.144 schwarze 360: if (man->flags & MAN_ELINE) {
1.119 schwarze 361: man->flags &= ~MAN_ELINE;
1.144 schwarze 362: man_unscope(man, man->last->parent);
1.94 kristaps 363: }
1.144 schwarze 364: if ( ! (man->flags & MAN_BLINE))
365: return;
1.119 schwarze 366: man->flags &= ~MAN_BLINE;
1.144 schwarze 367: man_unscope(man, man->last->parent);
368: man_body_alloc(man, line, offs, man->last->tok);
1.94 kristaps 369: }
370:
1.1 kristaps 371: static int
1.153 ! schwarze 372: man_ptext(struct roff_man *man, int line, char *buf, int offs)
1.1 kristaps 373: {
1.61 kristaps 374: int i;
1.60 kristaps 375:
1.35 kristaps 376: /* Literal free-form text whitespace is preserved. */
377:
1.144 schwarze 378: if (man->flags & MAN_LITERAL) {
379: man_word_alloc(man, line, offs, buf + offs);
380: man_descope(man, line, offs);
381: return(1);
1.35 kristaps 382: }
383:
1.144 schwarze 384: for (i = offs; buf[i] == ' '; i++)
1.31 kristaps 385: /* Skip leading whitespace. */ ;
1.48 kristaps 386:
1.121 schwarze 387: /*
388: * Blank lines are ignored right after headings
389: * but add a single vertical space elsewhere.
390: */
391:
1.144 schwarze 392: if (buf[i] == '\0') {
1.61 kristaps 393: /* Allocate a blank entry. */
1.144 schwarze 394: if (man->last->tok != MAN_SH &&
395: man->last->tok != MAN_SS) {
396: man_elem_alloc(man, line, offs, MAN_sp);
1.153 ! schwarze 397: man->next = ROFF_NEXT_SIBLING;
1.121 schwarze 398: }
1.118 schwarze 399: return(1);
1.31 kristaps 400: }
401:
1.129 schwarze 402: /*
1.63 kristaps 403: * Warn if the last un-escaped character is whitespace. Then
1.129 schwarze 404: * strip away the remaining spaces (tabs stay!).
1.63 kristaps 405: */
1.29 kristaps 406:
1.61 kristaps 407: i = (int)strlen(buf);
408: assert(i);
1.49 kristaps 409:
1.63 kristaps 410: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
1.64 kristaps 411: if (i > 1 && '\\' != buf[i - 2])
1.131 schwarze 412: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
413: line, i - 1, NULL);
1.63 kristaps 414:
415: for (--i; i && ' ' == buf[i]; i--)
416: /* Spin back to non-space. */ ;
417:
418: /* Jump ahead of escaped whitespace. */
419: i += '\\' == buf[i] ? 2 : 1;
420:
421: buf[i] = '\0';
422: }
1.144 schwarze 423: man_word_alloc(man, line, offs, buf + offs);
1.65 kristaps 424:
425: /*
426: * End-of-sentence check. If the last character is an unescaped
427: * EOS character, then flag the node as being the end of a
428: * sentence. The front-end will know how to interpret this.
429: */
1.67 kristaps 430:
1.65 kristaps 431: assert(i);
1.122 schwarze 432: if (mandoc_eos(buf, (size_t)i))
1.119 schwarze 433: man->last->flags |= MAN_EOS;
1.31 kristaps 434:
1.144 schwarze 435: man_descope(man, line, offs);
436: return(1);
1.1 kristaps 437: }
438:
1.96 kristaps 439: static int
1.153 ! schwarze 440: man_pmacro(struct roff_man *man, int ln, char *buf, int offs)
1.1 kristaps 441: {
1.151 schwarze 442: struct roff_node *n;
1.143 schwarze 443: const char *cp;
1.151 schwarze 444: int tok;
1.134 schwarze 445: int i, ppos;
446: int bline;
1.143 schwarze 447: char mac[5];
1.1 kristaps 448:
1.107 kristaps 449: ppos = offs;
1.9 kristaps 450:
1.56 kristaps 451: /*
1.107 kristaps 452: * Copy the first word into a nil-terminated buffer.
1.143 schwarze 453: * Stop when a space, tab, escape, or eoln is encountered.
1.56 kristaps 454: */
1.62 kristaps 455:
1.107 kristaps 456: i = 0;
1.143 schwarze 457: while (i < 4 && strchr(" \t\\", buf[offs]) == NULL)
1.107 kristaps 458: mac[i++] = buf[offs++];
1.10 kristaps 459:
1.107 kristaps 460: mac[i] = '\0';
1.1 kristaps 461:
1.107 kristaps 462: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 463:
1.143 schwarze 464: if (tok == MAN_MAX) {
1.136 schwarze 465: mandoc_msg(MANDOCERR_MACRO, man->parse,
466: ln, ppos, buf + ppos - 1);
1.12 kristaps 467: return(1);
1.1 kristaps 468: }
469:
1.143 schwarze 470: /* Skip a leading escape sequence or tab. */
471:
472: switch (buf[offs]) {
473: case '\\':
474: cp = buf + offs + 1;
475: mandoc_escape(&cp, NULL, NULL);
476: offs = cp - buf;
477: break;
478: case '\t':
479: offs++;
480: break;
481: default:
482: break;
483: }
484:
485: /* Jump to the next non-whitespace word. */
1.1 kristaps 486:
1.144 schwarze 487: while (buf[offs] && buf[offs] == ' ')
1.107 kristaps 488: offs++;
1.1 kristaps 489:
1.129 schwarze 490: /*
1.62 kristaps 491: * Trailing whitespace. Note that tabs are allowed to be passed
492: * into the parser as "text", so we only warn about spaces here.
493: */
1.48 kristaps 494:
1.144 schwarze 495: if (buf[offs] == '\0' && buf[offs - 1] == ' ')
1.131 schwarze 496: mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
497: ln, offs - 1, NULL);
1.48 kristaps 498:
1.129 schwarze 499: /*
1.149 schwarze 500: * Some macros break next-line scopes; otherwise, remember
501: * whether we are in next-line scope for a block head.
1.50 kristaps 502: */
1.34 kristaps 503:
1.149 schwarze 504: man_breakscope(man, tok);
1.134 schwarze 505: bline = man->flags & MAN_BLINE;
1.59 kristaps 506:
507: /* Call to handler... */
1.1 kristaps 508:
1.53 kristaps 509: assert(man_macros[tok].fp);
1.144 schwarze 510: (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf);
1.123 schwarze 511:
512: /* In quick mode (for mandocdb), abort after the NAME section. */
513:
1.144 schwarze 514: if (man->quick && tok == MAN_SH) {
1.130 schwarze 515: n = man->last;
1.150 schwarze 516: if (n->type == ROFFT_BODY &&
1.130 schwarze 517: strcmp(n->prev->child->string, "NAME"))
518: return(2);
519: }
1.1 kristaps 520:
1.129 schwarze 521: /*
1.135 schwarze 522: * If we are in a next-line scope for a block head,
523: * close it out now and switch to the body,
524: * unless the next-line scope is allowed to continue.
1.29 kristaps 525: */
526:
1.135 schwarze 527: if ( ! bline || man->flags & MAN_ELINE ||
528: man_macros[tok].flags & MAN_NSCOPED)
1.29 kristaps 529: return(1);
530:
1.144 schwarze 531: assert(man->flags & MAN_BLINE);
1.119 schwarze 532: man->flags &= ~MAN_BLINE;
1.11 kristaps 533:
1.144 schwarze 534: man_unscope(man, man->last->parent);
535: man_body_alloc(man, ln, ppos, man->last->tok);
536: return(1);
1.149 schwarze 537: }
538:
539: void
1.153 ! schwarze 540: man_breakscope(struct roff_man *man, int tok)
1.149 schwarze 541: {
1.151 schwarze 542: struct roff_node *n;
1.149 schwarze 543:
544: /*
545: * An element next line scope is open,
546: * and the new macro is not allowed inside elements.
547: * Delete the element that is being broken.
548: */
549:
550: if (man->flags & MAN_ELINE && (tok == MAN_MAX ||
551: ! (man_macros[tok].flags & MAN_NSCOPED))) {
552: n = man->last;
1.150 schwarze 553: assert(n->type != ROFFT_TEXT);
1.149 schwarze 554: if (man_macros[n->tok].flags & MAN_NSCOPED)
555: n = n->parent;
556:
557: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
558: n->line, n->pos, "%s breaks %s",
559: tok == MAN_MAX ? "TS" : man_macronames[tok],
560: man_macronames[n->tok]);
561:
562: man_node_delete(man, n);
563: man->flags &= ~MAN_ELINE;
564: }
565:
566: /*
567: * A block header next line scope is open,
568: * and the new macro is not allowed inside block headers.
569: * Delete the block that is being broken.
570: */
571:
572: if (man->flags & MAN_BLINE && (tok == MAN_MAX ||
573: man_macros[tok].flags & MAN_BSCOPE)) {
574: n = man->last;
1.150 schwarze 575: if (n->type == ROFFT_TEXT)
1.149 schwarze 576: n = n->parent;
577: if ( ! (man_macros[n->tok].flags & MAN_BSCOPE))
578: n = n->parent;
579:
1.150 schwarze 580: assert(n->type == ROFFT_HEAD);
1.149 schwarze 581: n = n->parent;
1.150 schwarze 582: assert(n->type == ROFFT_BLOCK);
1.149 schwarze 583: assert(man_macros[n->tok].flags & MAN_SCOPED);
584:
585: mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
586: n->line, n->pos, "%s breaks %s",
587: tok == MAN_MAX ? "TS" : man_macronames[tok],
588: man_macronames[n->tok]);
589:
590: man_node_delete(man, n);
591: man->flags &= ~MAN_BLINE;
592: }
1.1 kristaps 593: }
1.51 kristaps 594:
1.54 kristaps 595: /*
1.119 schwarze 596: * Unlink a node from its context. If "man" is provided, the last parse
1.54 kristaps 597: * point will also be adjusted accordingly.
598: */
599: static void
1.153 ! schwarze 600: man_node_unlink(struct roff_man *man, struct roff_node *n)
1.51 kristaps 601: {
602:
1.54 kristaps 603: /* Adjust siblings. */
604:
605: if (n->prev)
1.51 kristaps 606: n->prev->next = n->next;
1.54 kristaps 607: if (n->next)
608: n->next->prev = n->prev;
609:
610: /* Adjust parent. */
611:
612: if (n->parent) {
613: n->parent->nchild--;
614: if (n->parent->child == n)
615: n->parent->child = n->prev ? n->prev : n->next;
616: }
617:
618: /* Adjust parse point, if applicable. */
619:
1.119 schwarze 620: if (man && man->last == n) {
1.54 kristaps 621: /*XXX: this can occur when bailing from validation. */
622: /*assert(NULL == n->next);*/
623: if (n->prev) {
1.119 schwarze 624: man->last = n->prev;
1.153 ! schwarze 625: man->next = ROFF_NEXT_SIBLING;
1.54 kristaps 626: } else {
1.119 schwarze 627: man->last = n->parent;
1.153 ! schwarze 628: man->next = ROFF_NEXT_CHILD;
1.51 kristaps 629: }
630: }
631:
1.119 schwarze 632: if (man && man->first == n)
633: man->first = NULL;
1.112 kristaps 634: }
635:
636: const struct mparse *
1.153 ! schwarze 637: man_mparse(const struct roff_man *man)
1.112 kristaps 638: {
639:
1.119 schwarze 640: assert(man && man->parse);
641: return(man->parse);
1.126 schwarze 642: }
643:
644: void
1.151 schwarze 645: man_deroff(char **dest, const struct roff_node *n)
1.126 schwarze 646: {
647: char *cp;
648: size_t sz;
649:
1.150 schwarze 650: if (n->type != ROFFT_TEXT) {
1.126 schwarze 651: for (n = n->child; n; n = n->next)
652: man_deroff(dest, n);
653: return;
654: }
655:
1.127 schwarze 656: /* Skip leading whitespace and escape sequences. */
1.126 schwarze 657:
1.127 schwarze 658: cp = n->string;
659: while ('\0' != *cp) {
660: if ('\\' == *cp) {
661: cp++;
662: mandoc_escape((const char **)&cp, NULL, NULL);
663: } else if (isspace((unsigned char)*cp))
664: cp++;
665: else
1.126 schwarze 666: break;
1.127 schwarze 667: }
1.126 schwarze 668:
669: /* Skip trailing whitespace. */
670:
671: for (sz = strlen(cp); sz; sz--)
672: if (0 == isspace((unsigned char)cp[sz-1]))
673: break;
674:
675: /* Skip empty strings. */
676:
677: if (0 == sz)
678: return;
679:
680: if (NULL == *dest) {
681: *dest = mandoc_strndup(cp, sz);
682: return;
683: }
684:
685: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
686: free(*dest);
687: *dest = cp;
1.23 kristaps 688: }
CVSweb
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to man.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [cvsweb.bsd.lv] / mandoc