Annotation of mandoc/mdoc_action.c, Revision 1.13
1.13 ! kristaps 1: /* $Id: mdoc_action.c,v 1.12 2009/06/16 19:45:51 kristaps Exp $ */
1.1 kristaps 2: /*
1.9 kristaps 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 8: *
1.8 kristaps 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 16: */
17: #include <sys/utsname.h>
18:
19: #include <assert.h>
20: #include <errno.h>
21: #include <stdio.h>
22: #include <stdlib.h>
23: #include <string.h>
24:
25: #include "libmdoc.h"
26:
27: enum mwarn {
28: WBADSEC,
29: WNOWIDTH,
30: WBADDATE
31: };
32:
1.2 kristaps 33: enum merr {
34: ETOOLONG,
35: EMALLOC,
36: ENUMFMT
37: };
38:
1.1 kristaps 39: #define PRE_ARGS struct mdoc *m, const struct mdoc_node *n
40: #define POST_ARGS struct mdoc *m
41:
42: struct actions {
43: int (*pre)(PRE_ARGS);
44: int (*post)(POST_ARGS);
45: };
46:
47: static int pwarn(struct mdoc *, int, int, enum mwarn);
1.2 kristaps 48: static int perr(struct mdoc *, int, int, enum merr);
49: static int concat(struct mdoc *, const struct mdoc_node *,
50: char *, size_t);
1.1 kristaps 51:
52: static int post_ar(POST_ARGS);
53: static int post_bl(POST_ARGS);
54: static int post_bl_width(POST_ARGS);
55: static int post_bl_tagwidth(POST_ARGS);
56: static int post_dd(POST_ARGS);
57: static int post_display(POST_ARGS);
58: static int post_dt(POST_ARGS);
1.10 kristaps 59: static int post_lk(POST_ARGS);
1.1 kristaps 60: static int post_nm(POST_ARGS);
61: static int post_os(POST_ARGS);
62: static int post_prol(POST_ARGS);
63: static int post_sh(POST_ARGS);
64: static int post_std(POST_ARGS);
65:
66: static int pre_bd(PRE_ARGS);
67: static int pre_dl(PRE_ARGS);
68:
1.2 kristaps 69: #define vwarn(m, t) pwarn((m), (m)->last->line, (m)->last->pos, (t))
70: #define verr(m, t) perr((m), (m)->last->line, (m)->last->pos, (t))
71: #define nerr(m, n, t) perr((m), (n)->line, (n)->pos, (t))
1.1 kristaps 72:
73: const struct actions mdoc_actions[MDOC_MAX] = {
1.12 kristaps 74: { NULL, NULL }, /* Ap */
1.1 kristaps 75: { NULL, post_dd }, /* Dd */
76: { NULL, post_dt }, /* Dt */
77: { NULL, post_os }, /* Os */
78: { NULL, post_sh }, /* Sh */
79: { NULL, NULL }, /* Ss */
80: { NULL, NULL }, /* Pp */
81: { NULL, NULL }, /* D1 */
82: { pre_dl, post_display }, /* Dl */
83: { pre_bd, post_display }, /* Bd */
84: { NULL, NULL }, /* Ed */
85: { NULL, post_bl }, /* Bl */
86: { NULL, NULL }, /* El */
87: { NULL, NULL }, /* It */
88: { NULL, NULL }, /* Ad */
89: { NULL, NULL }, /* An */
90: { NULL, post_ar }, /* Ar */
91: { NULL, NULL }, /* Cd */
92: { NULL, NULL }, /* Cm */
93: { NULL, NULL }, /* Dv */
94: { NULL, NULL }, /* Er */
95: { NULL, NULL }, /* Ev */
96: { NULL, post_std }, /* Ex */
97: { NULL, NULL }, /* Fa */
98: { NULL, NULL }, /* Fd */
99: { NULL, NULL }, /* Fl */
100: { NULL, NULL }, /* Fn */
101: { NULL, NULL }, /* Ft */
102: { NULL, NULL }, /* Ic */
103: { NULL, NULL }, /* In */
104: { NULL, NULL }, /* Li */
105: { NULL, NULL }, /* Nd */
106: { NULL, post_nm }, /* Nm */
107: { NULL, NULL }, /* Op */
108: { NULL, NULL }, /* Ot */
109: { NULL, NULL }, /* Pa */
110: { NULL, post_std }, /* Rv */
111: { NULL, NULL }, /* St */
112: { NULL, NULL }, /* Va */
113: { NULL, NULL }, /* Vt */
114: { NULL, NULL }, /* Xr */
115: { NULL, NULL }, /* %A */
116: { NULL, NULL }, /* %B */
117: { NULL, NULL }, /* %D */
118: { NULL, NULL }, /* %I */
119: { NULL, NULL }, /* %J */
120: { NULL, NULL }, /* %N */
121: { NULL, NULL }, /* %O */
122: { NULL, NULL }, /* %P */
123: { NULL, NULL }, /* %R */
124: { NULL, NULL }, /* %T */
125: { NULL, NULL }, /* %V */
126: { NULL, NULL }, /* Ac */
127: { NULL, NULL }, /* Ao */
128: { NULL, NULL }, /* Aq */
129: { NULL, NULL }, /* At */
130: { NULL, NULL }, /* Bc */
131: { NULL, NULL }, /* Bf */
132: { NULL, NULL }, /* Bo */
133: { NULL, NULL }, /* Bq */
134: { NULL, NULL }, /* Bsx */
135: { NULL, NULL }, /* Bx */
136: { NULL, NULL }, /* Db */
137: { NULL, NULL }, /* Dc */
138: { NULL, NULL }, /* Do */
139: { NULL, NULL }, /* Dq */
140: { NULL, NULL }, /* Ec */
141: { NULL, NULL }, /* Ef */
142: { NULL, NULL }, /* Em */
143: { NULL, NULL }, /* Eo */
144: { NULL, NULL }, /* Fx */
145: { NULL, NULL }, /* Ms */
146: { NULL, NULL }, /* No */
147: { NULL, NULL }, /* Ns */
148: { NULL, NULL }, /* Nx */
149: { NULL, NULL }, /* Ox */
150: { NULL, NULL }, /* Pc */
151: { NULL, NULL }, /* Pf */
152: { NULL, NULL }, /* Po */
153: { NULL, NULL }, /* Pq */
154: { NULL, NULL }, /* Qc */
155: { NULL, NULL }, /* Ql */
156: { NULL, NULL }, /* Qo */
157: { NULL, NULL }, /* Qq */
158: { NULL, NULL }, /* Re */
159: { NULL, NULL }, /* Rs */
160: { NULL, NULL }, /* Sc */
161: { NULL, NULL }, /* So */
162: { NULL, NULL }, /* Sq */
163: { NULL, NULL }, /* Sm */
164: { NULL, NULL }, /* Sx */
165: { NULL, NULL }, /* Sy */
166: { NULL, NULL }, /* Tn */
167: { NULL, NULL }, /* Ux */
168: { NULL, NULL }, /* Xc */
169: { NULL, NULL }, /* Xo */
170: { NULL, NULL }, /* Fo */
171: { NULL, NULL }, /* Fc */
172: { NULL, NULL }, /* Oo */
173: { NULL, NULL }, /* Oc */
174: { NULL, NULL }, /* Bk */
175: { NULL, NULL }, /* Ek */
176: { NULL, NULL }, /* Bt */
177: { NULL, NULL }, /* Hf */
178: { NULL, NULL }, /* Fr */
179: { NULL, NULL }, /* Ud */
180: { NULL, NULL }, /* Lb */
181: { NULL, NULL }, /* Lp */
1.10 kristaps 182: { NULL, post_lk }, /* Lk */
1.1 kristaps 183: { NULL, NULL }, /* Mt */
184: { NULL, NULL }, /* Brq */
185: { NULL, NULL }, /* Bro */
186: { NULL, NULL }, /* Brc */
187: { NULL, NULL }, /* %C */
188: { NULL, NULL }, /* Es */
189: { NULL, NULL }, /* En */
190: { NULL, NULL }, /* Dx */
191: { NULL, NULL }, /* %Q */
192: };
193:
194:
1.2 kristaps 195: #ifdef __linux__
196: extern size_t strlcat(char *, const char *, size_t);
197: #endif
198:
199:
1.1 kristaps 200: int
201: mdoc_action_pre(struct mdoc *m, const struct mdoc_node *n)
202: {
203:
204: switch (n->type) {
205: case (MDOC_ROOT):
1.2 kristaps 206: /* FALLTHROUGH */
1.1 kristaps 207: case (MDOC_TEXT):
1.2 kristaps 208: return(1);
209: default:
1.1 kristaps 210: break;
211: }
1.2 kristaps 212:
1.6 kristaps 213: if (NULL == mdoc_actions[n->tok].pre)
1.2 kristaps 214: return(1);
1.6 kristaps 215: return((*mdoc_actions[n->tok].pre)(m, n));
1.1 kristaps 216: }
217:
218:
219: int
220: mdoc_action_post(struct mdoc *m)
221: {
222:
223: if (MDOC_ACTED & m->last->flags)
224: return(1);
225: m->last->flags |= MDOC_ACTED;
226:
227: switch (m->last->type) {
228: case (MDOC_TEXT):
1.2 kristaps 229: /* FALLTHROUGH */
1.1 kristaps 230: case (MDOC_ROOT):
1.2 kristaps 231: return(1);
232: default:
1.1 kristaps 233: break;
234: }
1.2 kristaps 235:
236: if (NULL == mdoc_actions[m->last->tok].post)
237: return(1);
238: return((*mdoc_actions[m->last->tok].post)(m));
239: }
240:
241:
242: static int
243: concat(struct mdoc *m, const struct mdoc_node *n,
244: char *buf, size_t sz)
245: {
246:
247: for ( ; n; n = n->next) {
248: assert(MDOC_TEXT == n->type);
249: if (strlcat(buf, n->string, sz) >= sz)
250: return(nerr(m, n, ETOOLONG));
251: if (NULL == n->next)
252: continue;
253: if (strlcat(buf, " ", sz) >= sz)
254: return(nerr(m, n, ETOOLONG));
255: }
256:
1.1 kristaps 257: return(1);
258: }
259:
260:
261: static int
1.2 kristaps 262: perr(struct mdoc *m, int line, int pos, enum merr type)
263: {
264: char *p;
265:
266: p = NULL;
267: switch (type) {
268: case (ENUMFMT):
269: p = "bad number format";
270: break;
271: case (ETOOLONG):
272: p = "argument text too long";
273: break;
274: case (EMALLOC):
275: p = "memory exhausted";
276: break;
277: }
278: assert(p);
279: return(mdoc_perr(m, line, pos, p));
280: }
281:
282:
283: static int
1.1 kristaps 284: pwarn(struct mdoc *m, int line, int pos, enum mwarn type)
285: {
286: char *p;
287: int c;
288:
289: p = NULL;
290: c = WARN_SYNTAX;
291: switch (type) {
292: case (WBADSEC):
293: p = "inappropriate document section in manual section";
294: c = WARN_COMPAT;
295: break;
296: case (WNOWIDTH):
297: p = "cannot determine default width";
298: break;
299: case (WBADDATE):
300: p = "malformed date syntax";
301: break;
302: }
303: assert(p);
304: return(mdoc_pwarn(m, line, pos, c, p));
305: }
306:
307:
308: static int
309: post_std(POST_ARGS)
310: {
311:
312: /*
313: * If '-std' is invoked without an argument, fill it in with our
314: * name (if it's been set).
315: */
316:
317: if (NULL == m->last->args)
318: return(1);
319: if (m->last->args->argv[0].sz)
320: return(1);
321:
322: assert(m->meta.name);
323:
324: m->last->args->argv[0].value = calloc(1, sizeof(char *));
325: if (NULL == m->last->args->argv[0].value)
1.2 kristaps 326: return(verr(m, EMALLOC));
1.1 kristaps 327:
328: m->last->args->argv[0].sz = 1;
1.2 kristaps 329: m->last->args->argv[0].value[0] = strdup(m->meta.name);
330: if (NULL == m->last->args->argv[0].value[0])
331: return(verr(m, EMALLOC));
332:
1.1 kristaps 333: return(1);
334: }
335:
336:
337: static int
338: post_nm(POST_ARGS)
339: {
340: char buf[64];
341:
342: if (m->meta.name)
343: return(1);
1.5 kristaps 344:
345: buf[0] = 0;
1.2 kristaps 346: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
347: return(0);
1.6 kristaps 348:
1.2 kristaps 349: if (NULL == (m->meta.name = strdup(buf)))
350: return(verr(m, EMALLOC));
1.1 kristaps 351:
352: return(1);
353: }
354:
355:
356: static int
357: post_sh(POST_ARGS)
358: {
359: enum mdoc_sec sec;
360: char buf[64];
361:
362: /*
363: * We keep track of the current section /and/ the "named"
364: * section, which is one of the conventional ones, in order to
365: * check ordering.
366: */
367:
368: if (MDOC_HEAD != m->last->type)
369: return(1);
1.5 kristaps 370:
371: buf[0] = 0;
1.2 kristaps 372: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
373: return(0);
1.1 kristaps 374: if (SEC_CUSTOM != (sec = mdoc_atosec(buf)))
375: m->lastnamed = sec;
376:
377: switch ((m->lastsec = sec)) {
378: case (SEC_RETURN_VALUES):
379: /* FALLTHROUGH */
380: case (SEC_ERRORS):
381: switch (m->meta.msec) {
382: case (2):
383: /* FALLTHROUGH */
384: case (3):
385: /* FALLTHROUGH */
386: case (9):
387: break;
388: default:
1.2 kristaps 389: return(vwarn(m, WBADSEC));
1.1 kristaps 390: }
391: break;
392: default:
393: break;
394: }
395: return(1);
396: }
397:
398:
399: static int
400: post_dt(POST_ARGS)
401: {
402: struct mdoc_node *n;
403: const char *cp;
404: char *ep;
405: long lval;
406:
407: if (m->meta.title)
408: free(m->meta.title);
409: if (m->meta.vol)
410: free(m->meta.vol);
411: if (m->meta.arch)
412: free(m->meta.arch);
413:
414: m->meta.title = m->meta.vol = m->meta.arch = NULL;
415: m->meta.msec = 0;
416:
417: /* Handles: `.Dt'
418: * --> title = unknown, volume = local, msec = 0, arch = NULL
419: */
420:
421: if (NULL == (n = m->last->child)) {
1.2 kristaps 422: if (NULL == (m->meta.title = strdup("unknown")))
423: return(verr(m, EMALLOC));
424: if (NULL == (m->meta.vol = strdup("local")))
425: return(verr(m, EMALLOC));
1.1 kristaps 426: return(post_prol(m));
427: }
428:
429: /* Handles: `.Dt TITLE'
430: * --> title = TITLE, volume = local, msec = 0, arch = NULL
431: */
432:
1.2 kristaps 433: if (NULL == (m->meta.title = strdup(n->string)))
434: return(verr(m, EMALLOC));
1.1 kristaps 435:
436: if (NULL == (n = n->next)) {
1.2 kristaps 437: if (NULL == (m->meta.vol = strdup("local")))
438: return(verr(m, EMALLOC));
1.1 kristaps 439: return(post_prol(m));
440: }
441:
442: /* Handles: `.Dt TITLE SEC'
443: * --> title = TITLE, volume = SEC is msec ?
444: * format(msec) : SEC,
445: * msec = SEC is msec ? atoi(msec) : 0,
446: * arch = NULL
447: */
448:
449: cp = mdoc_a2msec(n->string);
450: if (cp) {
1.2 kristaps 451: if (NULL == (m->meta.vol = strdup(cp)))
452: return(verr(m, EMALLOC));
1.1 kristaps 453: errno = 0;
454: lval = strtol(n->string, &ep, 10);
455: if (n->string[0] != '\0' && *ep == '\0')
456: m->meta.msec = (int)lval;
1.2 kristaps 457: } else if (NULL == (m->meta.vol = strdup(n->string)))
458: return(verr(m, EMALLOC));
1.1 kristaps 459:
460: if (NULL == (n = n->next))
461: return(post_prol(m));
462:
463: /* Handles: `.Dt TITLE SEC VOL'
464: * --> title = TITLE, volume = VOL is vol ?
465: * format(VOL) :
466: * VOL is arch ? format(arch) :
467: * VOL
468: */
469:
470: cp = mdoc_a2vol(n->string);
471: if (cp) {
472: free(m->meta.vol);
1.2 kristaps 473: if (NULL == (m->meta.vol = strdup(cp)))
474: return(verr(m, EMALLOC));
1.1 kristaps 475: n = n->next;
476: } else {
477: cp = mdoc_a2arch(n->string);
478: if (NULL == cp) {
479: free(m->meta.vol);
1.2 kristaps 480: if (NULL == (m->meta.vol = strdup(n->string)))
481: return(verr(m, EMALLOC));
482: } else if (NULL == (m->meta.arch = strdup(cp)))
483: return(verr(m, EMALLOC));
1.1 kristaps 484: }
485:
486: /* Ignore any subsequent parameters... */
487:
488: return(post_prol(m));
489: }
490:
491:
492: static int
493: post_os(POST_ARGS)
494: {
495: char buf[64];
496: struct utsname utsname;
497:
498: if (m->meta.os)
499: free(m->meta.os);
1.4 kristaps 500:
501: buf[0] = 0;
1.2 kristaps 502: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
503: return(0);
1.1 kristaps 504:
505: if (0 == buf[0]) {
506: if (-1 == uname(&utsname))
507: return(mdoc_err(m, "utsname"));
1.4 kristaps 508: if (strlcat(buf, utsname.sysname, 64) >= 64)
1.2 kristaps 509: return(verr(m, ETOOLONG));
510: if (strlcat(buf, " ", 64) >= 64)
511: return(verr(m, ETOOLONG));
512: if (strlcat(buf, utsname.release, 64) >= 64)
513: return(verr(m, ETOOLONG));
1.1 kristaps 514: }
515:
1.2 kristaps 516: if (NULL == (m->meta.os = strdup(buf)))
517: return(verr(m, EMALLOC));
1.1 kristaps 518:
1.13 ! kristaps 519: m->flags |= MDOC_PBODY;
1.1 kristaps 520: return(post_prol(m));
521: }
522:
523:
524: /*
525: * Calculate the -width for a `Bl -tag' list if it hasn't been provided.
526: * Uses the first head macro.
527: */
528: static int
529: post_bl_tagwidth(struct mdoc *m)
530: {
531: struct mdoc_node *n;
532: int sz;
533: char buf[32];
534:
535: /*
536: * Use the text width, if a text node, or the default macro
537: * width if a macro.
538: */
539:
1.11 kristaps 540: n = m->last->body->child;
541: if (n) {
1.1 kristaps 542: assert(MDOC_BLOCK == n->type);
543: assert(MDOC_It == n->tok);
544: n = n->head->child;
545: }
546:
547: sz = 10; /* Default size. */
548:
549: if (n) {
550: if (MDOC_TEXT != n->type) {
551: if (0 == (sz = (int)mdoc_macro2len(n->tok)))
1.2 kristaps 552: if ( ! vwarn(m, WNOWIDTH))
1.1 kristaps 553: return(0);
554: } else
555: sz = (int)strlen(n->string) + 1;
556: }
557:
1.2 kristaps 558: if (-1 == snprintf(buf, sizeof(buf), "%dn", sz))
559: return(verr(m, ENUMFMT));
1.1 kristaps 560:
561: /*
562: * We have to dynamically add this to the macro's argument list.
563: * We're guaranteed that a MDOC_Width doesn't already exist.
564: */
565:
566: n = m->last;
567: assert(n->args);
1.2 kristaps 568: sz = (int)(n->args->argc)++;
1.1 kristaps 569:
1.2 kristaps 570: n->args->argv = realloc(n->args->argv,
1.1 kristaps 571: n->args->argc * sizeof(struct mdoc_argv));
572:
1.2 kristaps 573: if (NULL == n->args->argv)
574: return(verr(m, EMALLOC));
575:
1.1 kristaps 576: n->args->argv[sz].arg = MDOC_Width;
577: n->args->argv[sz].line = m->last->line;
578: n->args->argv[sz].pos = m->last->pos;
579: n->args->argv[sz].sz = 1;
580: n->args->argv[sz].value = calloc(1, sizeof(char *));
1.2 kristaps 581:
1.1 kristaps 582: if (NULL == n->args->argv[sz].value)
1.2 kristaps 583: return(verr(m, EMALLOC));
584: if (NULL == (n->args->argv[sz].value[0] = strdup(buf)))
585: return(verr(m, EMALLOC));
1.1 kristaps 586:
587: return(1);
588: }
589:
590:
591: static int
592: post_bl_width(struct mdoc *m)
593: {
594: size_t width;
595: int i, tok;
596: char buf[32];
597: char *p;
598:
599: if (NULL == m->last->args)
600: return(1);
601:
602: for (i = 0; i < (int)m->last->args->argc; i++)
603: if (MDOC_Width == m->last->args->argv[i].arg)
604: break;
605:
606: if (i == (int)m->last->args->argc)
607: return(1);
608: p = m->last->args->argv[i].value[0];
609:
610: /*
611: * If the value to -width is a macro, then we re-write it to be
612: * the macro's width as set in share/tmac/mdoc/doc-common.
613: */
614:
1.2 kristaps 615: if (0 == strcmp(p, "Ds"))
1.1 kristaps 616: width = 8;
1.3 kristaps 617: else if (MDOC_MAX == (tok = mdoc_hash_find(m->htab, p)))
1.1 kristaps 618: return(1);
619: else if (0 == (width = mdoc_macro2len(tok)))
1.2 kristaps 620: return(vwarn(m, WNOWIDTH));
1.1 kristaps 621:
622: /* The value already exists: free and reallocate it. */
623:
1.2 kristaps 624: if (-1 == snprintf(buf, sizeof(buf), "%zun", width))
625: return(verr(m, ENUMFMT));
1.1 kristaps 626:
627: free(m->last->args->argv[i].value[0]);
1.2 kristaps 628: m->last->args->argv[i].value[0] = strdup(buf);
629: if (NULL == m->last->args->argv[i].value[0])
630: return(verr(m, EMALLOC));
1.1 kristaps 631:
632: return(1);
633: }
634:
635:
636: static int
637: post_bl(POST_ARGS)
638: {
639: int i, r, len;
640:
641: if (MDOC_BLOCK != m->last->type)
642: return(1);
643:
644: /*
645: * These are fairly complicated, so we've broken them into two
646: * functions. post_bl_tagwidth() is called when a -tag is
647: * specified, but no -width (it must be guessed). The second
648: * when a -width is specified (macro indicators must be
649: * rewritten into real lengths).
650: */
651:
652: len = (int)(m->last->args ? m->last->args->argc : 0);
653:
654: for (r = i = 0; i < len; i++) {
655: if (MDOC_Tag == m->last->args->argv[i].arg)
656: r |= 1 << 0;
657: if (MDOC_Width == m->last->args->argv[i].arg)
658: r |= 1 << 1;
659: }
660:
661: if (r & (1 << 0) && ! (r & (1 << 1))) {
662: if ( ! post_bl_tagwidth(m))
663: return(0);
664: } else if (r & (1 << 1))
665: if ( ! post_bl_width(m))
666: return(0);
667:
668: return(1);
669: }
670:
671:
672: static int
1.10 kristaps 673: post_lk(POST_ARGS)
674: {
675: struct mdoc_node *n;
676:
677: if (m->last->child)
678: return(1);
679:
680: n = m->last;
681: m->next = MDOC_NEXT_CHILD;
682: /* FIXME: this isn't documented anywhere! */
683: if ( ! mdoc_word_alloc(m, m->last->line,
684: m->last->pos, "~"))
685: return(0);
686:
687: m->last = n;
688: m->next = MDOC_NEXT_SIBLING;
689: return(1);
690: }
691:
692:
693: static int
1.1 kristaps 694: post_ar(POST_ARGS)
695: {
696: struct mdoc_node *n;
697:
698: if (m->last->child)
699: return(1);
700:
701: n = m->last;
702: m->next = MDOC_NEXT_CHILD;
703: if ( ! mdoc_word_alloc(m, m->last->line,
704: m->last->pos, "file"))
705: return(0);
706: m->next = MDOC_NEXT_SIBLING;
707: if ( ! mdoc_word_alloc(m, m->last->line,
708: m->last->pos, "..."))
709: return(0);
710:
711: m->last = n;
712: m->next = MDOC_NEXT_SIBLING;
713: return(1);
714: }
715:
716:
717: static int
718: post_dd(POST_ARGS)
719: {
720: char buf[64];
721:
1.5 kristaps 722: buf[0] = 0;
1.2 kristaps 723: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
724: return(0);
1.1 kristaps 725:
726: if (0 == (m->meta.date = mdoc_atotime(buf))) {
1.2 kristaps 727: if ( ! vwarn(m, WBADDATE))
1.1 kristaps 728: return(0);
729: m->meta.date = time(NULL);
730: }
731:
732: return(post_prol(m));
733: }
734:
735:
736: static int
737: post_prol(POST_ARGS)
738: {
739: struct mdoc_node *n;
740:
741: /*
742: * The end document shouldn't have the prologue macros as part
743: * of the syntax tree (they encompass only meta-data).
744: */
745:
746: if (m->last->parent->child == m->last)
747: m->last->parent->child = m->last->prev;
748: if (m->last->prev)
749: m->last->prev->next = NULL;
750:
751: n = m->last;
752: assert(NULL == m->last->next);
753:
754: if (m->last->prev) {
755: m->last = m->last->prev;
756: m->next = MDOC_NEXT_SIBLING;
757: } else {
758: m->last = m->last->parent;
759: m->next = MDOC_NEXT_CHILD;
760: }
761:
762: mdoc_node_freelist(n);
763: return(1);
764: }
765:
766:
767: static int
768: pre_dl(PRE_ARGS)
769: {
770:
771: if (MDOC_BODY != n->type)
772: return(1);
773: m->flags |= MDOC_LITERAL;
774: return(1);
775: }
776:
777:
778: static int
779: pre_bd(PRE_ARGS)
780: {
781: int i;
782:
783: if (MDOC_BODY != n->type)
784: return(1);
785:
1.2 kristaps 786: /* Enter literal context if `Bd -literal' or * -unfilled'. */
1.1 kristaps 787:
1.2 kristaps 788: for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
1.1 kristaps 789: if (MDOC_Literal == n->args->argv[i].arg)
790: break;
791: else if (MDOC_Unfilled == n->args->argv[i].arg)
792: break;
793:
794: if (i < (int)n->args->argc)
795: m->flags |= MDOC_LITERAL;
796:
797: return(1);
798: }
799:
800:
801: static int
802: post_display(POST_ARGS)
803: {
804:
805: if (MDOC_BODY == m->last->type)
806: m->flags &= ~MDOC_LITERAL;
807: return(1);
808: }
809:
810:
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