Annotation of src/usr.bin/mandoc/man.c, Revision 1.80
1.80 ! schwarze 1: /* $Id: man.c,v 1.79 2014/04/20 16:44:44 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);
1.79 schwarze 51: static int man_node_append(struct man *,
1.1 kristaps 52: struct man_node *);
1.22 schwarze 53: static void man_node_free(struct man_node *);
1.79 schwarze 54: static void man_node_unlink(struct man *,
1.22 schwarze 55: struct man_node *);
1.31 schwarze 56: static int man_ptext(struct man *, int, char *, int);
57: static int man_pmacro(struct man *, int, char *, int);
1.1 kristaps 58: static void man_free1(struct man *);
1.16 schwarze 59: static void man_alloc1(struct man *);
1.52 schwarze 60: static int man_descope(struct man *, int, int);
1.1 kristaps 61:
62:
63: const struct man_node *
1.69 schwarze 64: man_node(const struct man *man)
1.1 kristaps 65: {
66:
1.69 schwarze 67: assert( ! (MAN_HALT & man->flags));
68: return(man->first);
1.1 kristaps 69: }
70:
71: const struct man_meta *
1.69 schwarze 72: man_meta(const struct man *man)
1.1 kristaps 73: {
74:
1.69 schwarze 75: assert( ! (MAN_HALT & man->flags));
76: return(&man->meta);
1.1 kristaps 77: }
78:
1.16 schwarze 79: void
1.1 kristaps 80: man_reset(struct man *man)
81: {
82:
83: man_free1(man);
1.16 schwarze 84: man_alloc1(man);
1.1 kristaps 85: }
86:
87: void
88: man_free(struct man *man)
89: {
90:
91: man_free1(man);
92: free(man);
93: }
94:
95: struct man *
1.73 schwarze 96: man_alloc(struct roff *roff, struct mparse *parse, int quick)
1.1 kristaps 97: {
98: struct man *p;
99:
1.16 schwarze 100: p = mandoc_calloc(1, sizeof(struct man));
1.1 kristaps 101:
1.13 schwarze 102: man_hash_init();
1.59 schwarze 103: p->parse = parse;
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:
111: int
1.69 schwarze 112: man_endparse(struct man *man)
1.1 kristaps 113: {
114:
1.69 schwarze 115: assert( ! (MAN_HALT & man->flags));
116: if (man_macroend(man))
1.1 kristaps 117: return(1);
1.69 schwarze 118: man->flags |= MAN_HALT;
1.1 kristaps 119: return(0);
120: }
121:
122: int
1.69 schwarze 123: man_parseln(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 124: {
1.25 schwarze 125:
1.69 schwarze 126: man->flags |= MAN_NEWLINE;
1.54 schwarze 127:
1.69 schwarze 128: assert( ! (MAN_HALT & man->flags));
1.59 schwarze 129:
1.69 schwarze 130: return (roff_getcontrol(man->roff, buf, &offs) ?
1.79 schwarze 131: man_pmacro(man, ln, buf, offs) :
132: man_ptext(man, ln, buf, offs));
1.1 kristaps 133: }
134:
135: static void
136: man_free1(struct man *man)
137: {
138:
139: if (man->first)
1.22 schwarze 140: man_node_delete(man, man->first);
1.1 kristaps 141: if (man->meta.title)
142: free(man->meta.title);
143: if (man->meta.source)
144: free(man->meta.source);
1.56 schwarze 145: if (man->meta.date)
146: free(man->meta.date);
1.1 kristaps 147: if (man->meta.vol)
148: free(man->meta.vol);
1.29 schwarze 149: if (man->meta.msec)
150: free(man->meta.msec);
1.1 kristaps 151: }
152:
1.16 schwarze 153: static void
1.69 schwarze 154: man_alloc1(struct man *man)
1.1 kristaps 155: {
156:
1.69 schwarze 157: memset(&man->meta, 0, sizeof(struct man_meta));
158: man->flags = 0;
159: man->last = mandoc_calloc(1, sizeof(struct man_node));
160: man->first = man->last;
161: man->last->type = MAN_ROOT;
162: man->last->tok = MAN_MAX;
163: man->next = MAN_NEXT_CHILD;
1.1 kristaps 164: }
165:
166:
167: static int
168: man_node_append(struct man *man, struct man_node *p)
169: {
170:
171: assert(man->last);
172: assert(man->first);
173: assert(MAN_ROOT != p->type);
174:
175: switch (man->next) {
1.79 schwarze 176: case MAN_NEXT_SIBLING:
1.1 kristaps 177: man->last->next = p;
178: p->prev = man->last;
179: p->parent = man->last->parent;
180: break;
1.79 schwarze 181: case MAN_NEXT_CHILD:
1.1 kristaps 182: man->last->child = p;
183: p->parent = man->last;
184: break;
185: default:
186: abort();
187: /* NOTREACHED */
188: }
1.79 schwarze 189:
1.22 schwarze 190: assert(p->parent);
1.5 schwarze 191: p->parent->nchild++;
1.1 kristaps 192:
1.9 schwarze 193: if ( ! man_valid_pre(man, p))
194: return(0);
195:
196: switch (p->type) {
1.79 schwarze 197: case MAN_HEAD:
1.9 schwarze 198: assert(MAN_BLOCK == p->parent->type);
199: p->parent->head = p;
200: break;
1.79 schwarze 201: case MAN_TAIL:
1.59 schwarze 202: assert(MAN_BLOCK == p->parent->type);
203: p->parent->tail = p;
204: break;
1.79 schwarze 205: case MAN_BODY:
1.9 schwarze 206: assert(MAN_BLOCK == p->parent->type);
207: p->parent->body = p;
208: break;
209: default:
210: break;
211: }
212:
1.1 kristaps 213: man->last = p;
214:
215: switch (p->type) {
1.79 schwarze 216: case MAN_TBL:
1.52 schwarze 217: /* FALLTHROUGH */
1.79 schwarze 218: case MAN_TEXT:
1.1 kristaps 219: if ( ! man_valid_post(man))
220: return(0);
221: break;
222: default:
223: break;
224: }
225:
226: return(1);
227: }
228:
229: static struct man_node *
1.79 schwarze 230: man_node_alloc(struct man *man, int line, int pos,
1.54 schwarze 231: enum man_type type, enum mant tok)
1.1 kristaps 232: {
233: struct man_node *p;
234:
1.16 schwarze 235: p = mandoc_calloc(1, sizeof(struct man_node));
1.1 kristaps 236: p->line = line;
237: p->pos = pos;
238: p->type = type;
239: p->tok = tok;
1.54 schwarze 240:
1.69 schwarze 241: if (MAN_NEWLINE & man->flags)
1.54 schwarze 242: p->flags |= MAN_LINE;
1.69 schwarze 243: man->flags &= ~MAN_NEWLINE;
1.1 kristaps 244: return(p);
245: }
246:
247: int
1.69 schwarze 248: man_elem_alloc(struct man *man, int line, int pos, enum mant tok)
1.1 kristaps 249: {
250: struct man_node *p;
251:
1.69 schwarze 252: p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
253: if ( ! man_node_append(man, p))
1.10 schwarze 254: return(0);
1.69 schwarze 255: man->next = MAN_NEXT_CHILD;
1.10 schwarze 256: return(1);
1.1 kristaps 257: }
258:
259: int
1.69 schwarze 260: man_tail_alloc(struct man *man, int line, int pos, enum mant tok)
1.59 schwarze 261: {
262: struct man_node *p;
263:
1.69 schwarze 264: p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
265: if ( ! man_node_append(man, p))
1.59 schwarze 266: return(0);
1.69 schwarze 267: man->next = MAN_NEXT_CHILD;
1.59 schwarze 268: return(1);
269: }
270:
271: int
1.69 schwarze 272: man_head_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 273: {
274: struct man_node *p;
275:
1.69 schwarze 276: p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
277: if ( ! man_node_append(man, p))
1.9 schwarze 278: return(0);
1.69 schwarze 279: man->next = MAN_NEXT_CHILD;
1.9 schwarze 280: return(1);
281: }
282:
283: int
1.69 schwarze 284: man_body_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 285: {
286: struct man_node *p;
287:
1.69 schwarze 288: p = man_node_alloc(man, line, pos, MAN_BODY, tok);
289: if ( ! man_node_append(man, p))
1.9 schwarze 290: return(0);
1.69 schwarze 291: man->next = MAN_NEXT_CHILD;
1.9 schwarze 292: return(1);
293: }
294:
295: int
1.69 schwarze 296: man_block_alloc(struct man *man, int line, int pos, enum mant tok)
1.9 schwarze 297: {
298: struct man_node *p;
299:
1.69 schwarze 300: p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
301: if ( ! man_node_append(man, p))
1.9 schwarze 302: return(0);
1.69 schwarze 303: man->next = MAN_NEXT_CHILD;
1.9 schwarze 304: return(1);
305: }
306:
1.27 schwarze 307: int
1.69 schwarze 308: man_word_alloc(struct man *man, int line, int pos, const char *word)
1.1 kristaps 309: {
1.10 schwarze 310: struct man_node *n;
1.1 kristaps 311:
1.69 schwarze 312: n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
313: n->string = roff_strdup(man->roff, word);
1.10 schwarze 314:
1.69 schwarze 315: if ( ! man_node_append(man, n))
1.1 kristaps 316: return(0);
1.27 schwarze 317:
1.69 schwarze 318: man->next = MAN_NEXT_SIBLING;
1.10 schwarze 319: return(1);
320: }
321:
1.22 schwarze 322: /*
323: * Free all of the resources held by a node. This does NOT unlink a
324: * node from its context; for that, see man_node_unlink().
325: */
326: static void
1.1 kristaps 327: man_node_free(struct man_node *p)
328: {
329:
330: if (p->string)
331: free(p->string);
332: free(p);
333: }
334:
335: void
1.69 schwarze 336: man_node_delete(struct man *man, struct man_node *p)
1.1 kristaps 337: {
338:
1.22 schwarze 339: while (p->child)
1.69 schwarze 340: man_node_delete(man, p->child);
1.22 schwarze 341:
1.69 schwarze 342: man_node_unlink(man, p);
1.1 kristaps 343: man_node_free(p);
344: }
345:
1.57 schwarze 346: int
1.69 schwarze 347: man_addeqn(struct man *man, const struct eqn *ep)
1.57 schwarze 348: {
349: struct man_node *n;
350:
1.69 schwarze 351: assert( ! (MAN_HALT & man->flags));
1.57 schwarze 352:
1.69 schwarze 353: n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
1.57 schwarze 354: n->eqn = ep;
355:
1.69 schwarze 356: if ( ! man_node_append(man, n))
1.57 schwarze 357: return(0);
358:
1.69 schwarze 359: man->next = MAN_NEXT_SIBLING;
360: return(man_descope(man, ep->ln, ep->pos));
1.57 schwarze 361: }
1.1 kristaps 362:
1.52 schwarze 363: int
1.69 schwarze 364: man_addspan(struct man *man, const struct tbl_span *sp)
1.52 schwarze 365: {
1.55 schwarze 366: struct man_node *n;
1.52 schwarze 367:
1.69 schwarze 368: assert( ! (MAN_HALT & man->flags));
1.55 schwarze 369:
1.69 schwarze 370: n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
1.55 schwarze 371: n->span = sp;
372:
1.69 schwarze 373: if ( ! man_node_append(man, n))
1.52 schwarze 374: return(0);
1.55 schwarze 375:
1.69 schwarze 376: man->next = MAN_NEXT_SIBLING;
377: return(man_descope(man, sp->line, 0));
1.52 schwarze 378: }
379:
380: static int
1.69 schwarze 381: man_descope(struct man *man, int line, int offs)
1.52 schwarze 382: {
383: /*
384: * Co-ordinate what happens with having a next-line scope open:
385: * first close out the element scope (if applicable), then close
386: * out the block scope (also if applicable).
387: */
388:
1.69 schwarze 389: if (MAN_ELINE & man->flags) {
390: man->flags &= ~MAN_ELINE;
391: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 392: return(0);
393: }
394:
1.69 schwarze 395: if ( ! (MAN_BLINE & man->flags))
1.52 schwarze 396: return(1);
1.69 schwarze 397: man->flags &= ~MAN_BLINE;
1.52 schwarze 398:
1.69 schwarze 399: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.52 schwarze 400: return(0);
1.69 schwarze 401: return(man_body_alloc(man, line, offs, man->last->tok));
1.52 schwarze 402: }
403:
1.1 kristaps 404: static int
1.69 schwarze 405: man_ptext(struct man *man, int line, char *buf, int offs)
1.1 kristaps 406: {
1.27 schwarze 407: int i;
1.26 schwarze 408:
1.10 schwarze 409: /* Literal free-form text whitespace is preserved. */
410:
1.69 schwarze 411: if (MAN_LITERAL & man->flags) {
412: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.10 schwarze 413: return(0);
1.69 schwarze 414: return(man_descope(man, line, offs));
1.10 schwarze 415: }
416:
1.31 schwarze 417: for (i = offs; ' ' == buf[i]; i++)
1.10 schwarze 418: /* Skip leading whitespace. */ ;
1.18 schwarze 419:
1.71 schwarze 420: /*
421: * Blank lines are ignored right after headings
422: * but add a single vertical space elsewhere.
423: */
424:
1.18 schwarze 425: if ('\0' == buf[i]) {
1.27 schwarze 426: /* Allocate a blank entry. */
1.71 schwarze 427: if (MAN_SH != man->last->tok &&
428: MAN_SS != man->last->tok) {
429: if ( ! man_elem_alloc(man, line, offs, MAN_sp))
430: return(0);
431: man->next = MAN_NEXT_SIBLING;
432: }
1.68 schwarze 433: return(1);
1.10 schwarze 434: }
1.1 kristaps 435:
1.79 schwarze 436: /*
1.27 schwarze 437: * Warn if the last un-escaped character is whitespace. Then
1.79 schwarze 438: * strip away the remaining spaces (tabs stay!).
1.27 schwarze 439: */
1.18 schwarze 440:
1.27 schwarze 441: i = (int)strlen(buf);
442: assert(i);
1.18 schwarze 443:
1.27 schwarze 444: if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
445: if (i > 1 && '\\' != buf[i - 2])
1.69 schwarze 446: man_pmsg(man, line, i - 1, MANDOCERR_EOLNSPACE);
1.18 schwarze 447:
1.27 schwarze 448: for (--i; i && ' ' == buf[i]; i--)
449: /* Spin back to non-space. */ ;
1.10 schwarze 450:
1.27 schwarze 451: /* Jump ahead of escaped whitespace. */
452: i += '\\' == buf[i] ? 2 : 1;
1.18 schwarze 453:
1.27 schwarze 454: buf[i] = '\0';
1.10 schwarze 455: }
1.9 schwarze 456:
1.69 schwarze 457: if ( ! man_word_alloc(man, line, offs, buf + offs))
1.1 kristaps 458: return(0);
1.28 schwarze 459:
460: /*
461: * End-of-sentence check. If the last character is an unescaped
462: * EOS character, then flag the node as being the end of a
463: * sentence. The front-end will know how to interpret this.
464: */
465:
466: assert(i);
1.72 schwarze 467: if (mandoc_eos(buf, (size_t)i))
1.69 schwarze 468: man->last->flags |= MAN_EOS;
1.10 schwarze 469:
1.69 schwarze 470: return(man_descope(man, line, offs));
1.1 kristaps 471: }
472:
1.53 schwarze 473: static int
1.69 schwarze 474: man_pmacro(struct man *man, int ln, char *buf, int offs)
1.1 kristaps 475: {
1.59 schwarze 476: int i, ppos;
1.22 schwarze 477: enum mant tok;
1.10 schwarze 478: char mac[5];
479: struct man_node *n;
1.1 kristaps 480:
1.59 schwarze 481: if ('"' == buf[offs]) {
1.69 schwarze 482: man_pmsg(man, ln, offs, MANDOCERR_BADCOMMENT);
1.59 schwarze 483: return(1);
484: } else if ('\0' == buf[offs])
1.17 schwarze 485: return(1);
1.1 kristaps 486:
1.59 schwarze 487: ppos = offs;
1.1 kristaps 488:
1.23 schwarze 489: /*
1.59 schwarze 490: * Copy the first word into a nil-terminated buffer.
491: * Stop copying when a tab, space, or eoln is encountered.
1.23 schwarze 492: */
1.27 schwarze 493:
1.59 schwarze 494: i = 0;
1.79 schwarze 495: while (i < 4 && '\0' != buf[offs] && ' ' != buf[offs] &&
496: '\t' != buf[offs])
1.59 schwarze 497: mac[i++] = buf[offs++];
1.1 kristaps 498:
1.59 schwarze 499: mac[i] = '\0';
1.1 kristaps 500:
1.59 schwarze 501: tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;
1.1 kristaps 502:
1.40 schwarze 503: if (MAN_MAX == tok) {
1.79 schwarze 504: mandoc_vmsg(MANDOCERR_MACRO, man->parse, ln, ppos,
505: "%s", buf + ppos - 1);
1.1 kristaps 506: return(1);
507: }
508:
509: /* The macro is sane. Jump to the next word. */
510:
1.59 schwarze 511: while (buf[offs] && ' ' == buf[offs])
512: offs++;
1.18 schwarze 513:
1.79 schwarze 514: /*
1.27 schwarze 515: * Trailing whitespace. Note that tabs are allowed to be passed
516: * into the parser as "text", so we only warn about spaces here.
517: */
1.18 schwarze 518:
1.59 schwarze 519: if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.69 schwarze 520: man_pmsg(man, ln, offs - 1, MANDOCERR_EOLNSPACE);
1.1 kristaps 521:
1.79 schwarze 522: /*
1.46 schwarze 523: * Remove prior ELINE macro, as it's being clobbered by a new
1.21 schwarze 524: * macro. Note that NSCOPED macros do not close out ELINE
525: * macros---they don't print text---so we let those slip by.
526: */
527:
1.22 schwarze 528: if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
1.69 schwarze 529: man->flags & MAN_ELINE) {
530: n = man->last;
1.46 schwarze 531: assert(MAN_TEXT != n->type);
1.21 schwarze 532:
1.49 schwarze 533: /* Remove repeated NSCOPED macros causing ELINE. */
534:
1.46 schwarze 535: if (MAN_NSCOPED & man_macros[n->tok].flags)
536: n = n->parent;
1.21 schwarze 537:
1.79 schwarze 538: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 539: n->pos, "%s breaks %s", man_macronames[tok],
540: man_macronames[n->tok]);
1.10 schwarze 541:
1.69 schwarze 542: man_node_delete(man, n);
543: man->flags &= ~MAN_ELINE;
1.63 schwarze 544: }
545:
546: /*
547: * Remove prior BLINE macro that is being clobbered.
548: */
1.69 schwarze 549: if ((man->flags & MAN_BLINE) &&
1.63 schwarze 550: (MAN_BSCOPE & man_macros[tok].flags)) {
1.69 schwarze 551: n = man->last;
1.64 schwarze 552:
553: /* Might be a text node like 8 in
554: * .TP 8
555: * .SH foo
556: */
557: if (MAN_TEXT == n->type)
558: n = n->parent;
1.63 schwarze 559:
560: /* Remove element that didn't end BLINE, if any. */
561: if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
562: n = n->parent;
563:
564: assert(MAN_HEAD == n->type);
565: n = n->parent;
566: assert(MAN_BLOCK == n->type);
567: assert(MAN_SCOPED & man_macros[n->tok].flags);
568:
1.79 schwarze 569: mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
1.63 schwarze 570: n->pos, "%s breaks %s", man_macronames[tok],
571: man_macronames[n->tok]);
572:
1.69 schwarze 573: man_node_delete(man, n);
574: man->flags &= ~MAN_BLINE;
1.10 schwarze 575: }
576:
1.24 schwarze 577: /*
578: * Save the fact that we're in the next-line for a block. In
579: * this way, embedded roff instructions can "remember" state
580: * when they exit.
581: */
582:
1.69 schwarze 583: if (MAN_BLINE & man->flags)
584: man->flags |= MAN_BPLINE;
1.24 schwarze 585:
586: /* Call to handler... */
1.1 kristaps 587:
1.22 schwarze 588: assert(man_macros[tok].fp);
1.69 schwarze 589: if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))
1.1 kristaps 590: goto err;
1.73 schwarze 591:
592: /* In quick mode (for mandocdb), abort after the NAME section. */
593:
1.80 ! schwarze 594: if (man->quick && MAN_SH == tok) {
! 595: n = man->last;
! 596: if (MAN_BODY == n->type &&
! 597: strcmp(n->prev->child->string, "NAME"))
! 598: return(2);
! 599: }
1.1 kristaps 600:
1.79 schwarze 601: /*
1.21 schwarze 602: * We weren't in a block-line scope when entering the
603: * above-parsed macro, so return.
604: */
605:
1.69 schwarze 606: if ( ! (MAN_BPLINE & man->flags)) {
1.79 schwarze 607: man->flags &= ~MAN_ILINE;
1.9 schwarze 608: return(1);
1.21 schwarze 609: }
1.69 schwarze 610: man->flags &= ~MAN_BPLINE;
1.21 schwarze 611:
612: /*
613: * If we're in a block scope, then allow this macro to slip by
614: * without closing scope around it.
615: */
616:
1.69 schwarze 617: if (MAN_ILINE & man->flags) {
618: man->flags &= ~MAN_ILINE;
1.21 schwarze 619: return(1);
620: }
1.9 schwarze 621:
1.79 schwarze 622: /*
1.9 schwarze 623: * If we've opened a new next-line element scope, then return
624: * now, as the next line will close out the block scope.
625: */
626:
1.69 schwarze 627: if (MAN_ELINE & man->flags)
1.9 schwarze 628: return(1);
629:
630: /* Close out the block scope opened in the prior line. */
1.1 kristaps 631:
1.69 schwarze 632: assert(MAN_BLINE & man->flags);
633: man->flags &= ~MAN_BLINE;
1.1 kristaps 634:
1.69 schwarze 635: if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))
1.9 schwarze 636: return(0);
1.69 schwarze 637: return(man_body_alloc(man, ln, ppos, man->last->tok));
1.1 kristaps 638:
639: err: /* Error out. */
640:
1.69 schwarze 641: man->flags |= MAN_HALT;
1.1 kristaps 642: return(0);
643: }
1.21 schwarze 644:
1.22 schwarze 645: /*
1.69 schwarze 646: * Unlink a node from its context. If "man" is provided, the last parse
1.22 schwarze 647: * point will also be adjusted accordingly.
648: */
649: static void
1.69 schwarze 650: man_node_unlink(struct man *man, struct man_node *n)
1.21 schwarze 651: {
652:
1.22 schwarze 653: /* Adjust siblings. */
654:
655: if (n->prev)
1.21 schwarze 656: n->prev->next = n->next;
1.22 schwarze 657: if (n->next)
658: n->next->prev = n->prev;
659:
660: /* Adjust parent. */
661:
662: if (n->parent) {
663: n->parent->nchild--;
664: if (n->parent->child == n)
665: n->parent->child = n->prev ? n->prev : n->next;
666: }
667:
668: /* Adjust parse point, if applicable. */
669:
1.69 schwarze 670: if (man && man->last == n) {
1.22 schwarze 671: /*XXX: this can occur when bailing from validation. */
672: /*assert(NULL == n->next);*/
673: if (n->prev) {
1.69 schwarze 674: man->last = n->prev;
675: man->next = MAN_NEXT_SIBLING;
1.22 schwarze 676: } else {
1.69 schwarze 677: man->last = n->parent;
678: man->next = MAN_NEXT_CHILD;
1.21 schwarze 679: }
680: }
681:
1.69 schwarze 682: if (man && man->first == n)
683: man->first = NULL;
1.62 schwarze 684: }
685:
686: const struct mparse *
1.69 schwarze 687: man_mparse(const struct man *man)
1.62 schwarze 688: {
689:
1.69 schwarze 690: assert(man && man->parse);
691: return(man->parse);
1.76 schwarze 692: }
693:
694: void
695: man_deroff(char **dest, const struct man_node *n)
696: {
697: char *cp;
698: size_t sz;
699:
700: if (MAN_TEXT != n->type) {
701: for (n = n->child; n; n = n->next)
702: man_deroff(dest, n);
703: return;
704: }
705:
1.77 schwarze 706: /* Skip leading whitespace and escape sequences. */
1.76 schwarze 707:
1.77 schwarze 708: cp = n->string;
709: while ('\0' != *cp) {
710: if ('\\' == *cp) {
711: cp++;
712: mandoc_escape((const char **)&cp, NULL, NULL);
713: } else if (isspace((unsigned char)*cp))
714: cp++;
715: else
1.76 schwarze 716: break;
1.77 schwarze 717: }
1.76 schwarze 718:
719: /* Skip trailing whitespace. */
720:
721: for (sz = strlen(cp); sz; sz--)
722: if (0 == isspace((unsigned char)cp[sz-1]))
723: break;
724:
725: /* Skip empty strings. */
726:
727: if (0 == sz)
728: return;
729:
730: if (NULL == *dest) {
731: *dest = mandoc_strndup(cp, sz);
732: return;
733: }
734:
735: mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
736: free(*dest);
737: *dest = cp;
1.4 schwarze 738: }
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