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1.10 ! schwarze 1: /* $Id: mdoc_action.c,v 1.9 2009/06/27 12:43:11 schwarze Exp $ */
1.1 kristaps 2: /*
1.2 schwarze 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
1.2 schwarze 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: *
1.2 schwarze 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:
33: enum merr {
34: ETOOLONG,
35: EMALLOC,
1.10 ! schwarze 36: EUTSNAME,
1.1 kristaps 37: ENUMFMT
38: };
39:
40: #define PRE_ARGS struct mdoc *m, const struct mdoc_node *n
41: #define POST_ARGS struct mdoc *m
42:
43: struct actions {
44: int (*pre)(PRE_ARGS);
45: int (*post)(POST_ARGS);
46: };
47:
48: static int pwarn(struct mdoc *, int, int, enum mwarn);
49: static int perr(struct mdoc *, int, int, enum merr);
50: static int concat(struct mdoc *, const struct mdoc_node *,
51: char *, size_t);
52:
53: static int post_ar(POST_ARGS);
54: static int post_bl(POST_ARGS);
1.6 schwarze 55: static int post_bl_head(POST_ARGS);
1.1 kristaps 56: static int post_bl_width(POST_ARGS);
57: static int post_bl_tagwidth(POST_ARGS);
58: static int post_dd(POST_ARGS);
59: static int post_display(POST_ARGS);
60: static int post_dt(POST_ARGS);
1.3 schwarze 61: static int post_lk(POST_ARGS);
1.1 kristaps 62: static int post_nm(POST_ARGS);
63: static int post_os(POST_ARGS);
64: static int post_prol(POST_ARGS);
65: static int post_sh(POST_ARGS);
66: static int post_std(POST_ARGS);
67:
68: static int pre_bd(PRE_ARGS);
69: static int pre_dl(PRE_ARGS);
70:
71: #define vwarn(m, t) pwarn((m), (m)->last->line, (m)->last->pos, (t))
72: #define verr(m, t) perr((m), (m)->last->line, (m)->last->pos, (t))
73: #define nerr(m, n, t) perr((m), (n)->line, (n)->pos, (t))
74:
75: const struct actions mdoc_actions[MDOC_MAX] = {
1.4 schwarze 76: { NULL, NULL }, /* Ap */
1.1 kristaps 77: { NULL, post_dd }, /* Dd */
78: { NULL, post_dt }, /* Dt */
79: { NULL, post_os }, /* Os */
80: { NULL, post_sh }, /* Sh */
81: { NULL, NULL }, /* Ss */
82: { NULL, NULL }, /* Pp */
83: { NULL, NULL }, /* D1 */
84: { pre_dl, post_display }, /* Dl */
85: { pre_bd, post_display }, /* Bd */
86: { NULL, NULL }, /* Ed */
87: { NULL, post_bl }, /* Bl */
88: { NULL, NULL }, /* El */
89: { NULL, NULL }, /* It */
90: { NULL, NULL }, /* Ad */
91: { NULL, NULL }, /* An */
92: { NULL, post_ar }, /* Ar */
1.9 schwarze 93: { NULL, NULL }, /* Cd */ /* FIXME: tabs are accepted! */
1.1 kristaps 94: { NULL, NULL }, /* Cm */
95: { NULL, NULL }, /* Dv */
96: { NULL, NULL }, /* Er */
97: { NULL, NULL }, /* Ev */
98: { NULL, post_std }, /* Ex */
99: { NULL, NULL }, /* Fa */
100: { NULL, NULL }, /* Fd */
101: { NULL, NULL }, /* Fl */
102: { NULL, NULL }, /* Fn */
103: { NULL, NULL }, /* Ft */
104: { NULL, NULL }, /* Ic */
105: { NULL, NULL }, /* In */
106: { NULL, NULL }, /* Li */
107: { NULL, NULL }, /* Nd */
108: { NULL, post_nm }, /* Nm */
109: { NULL, NULL }, /* Op */
110: { NULL, NULL }, /* Ot */
111: { NULL, NULL }, /* Pa */
112: { NULL, post_std }, /* Rv */
113: { NULL, NULL }, /* St */
114: { NULL, NULL }, /* Va */
115: { NULL, NULL }, /* Vt */
116: { NULL, NULL }, /* Xr */
117: { NULL, NULL }, /* %A */
118: { NULL, NULL }, /* %B */
119: { NULL, NULL }, /* %D */
120: { NULL, NULL }, /* %I */
121: { NULL, NULL }, /* %J */
122: { NULL, NULL }, /* %N */
123: { NULL, NULL }, /* %O */
124: { NULL, NULL }, /* %P */
125: { NULL, NULL }, /* %R */
126: { NULL, NULL }, /* %T */
127: { NULL, NULL }, /* %V */
128: { NULL, NULL }, /* Ac */
129: { NULL, NULL }, /* Ao */
130: { NULL, NULL }, /* Aq */
131: { NULL, NULL }, /* At */
132: { NULL, NULL }, /* Bc */
133: { NULL, NULL }, /* Bf */
134: { NULL, NULL }, /* Bo */
135: { NULL, NULL }, /* Bq */
136: { NULL, NULL }, /* Bsx */
137: { NULL, NULL }, /* Bx */
138: { NULL, NULL }, /* Db */
139: { NULL, NULL }, /* Dc */
140: { NULL, NULL }, /* Do */
141: { NULL, NULL }, /* Dq */
142: { NULL, NULL }, /* Ec */
143: { NULL, NULL }, /* Ef */
144: { NULL, NULL }, /* Em */
145: { NULL, NULL }, /* Eo */
146: { NULL, NULL }, /* Fx */
147: { NULL, NULL }, /* Ms */
148: { NULL, NULL }, /* No */
149: { NULL, NULL }, /* Ns */
150: { NULL, NULL }, /* Nx */
151: { NULL, NULL }, /* Ox */
152: { NULL, NULL }, /* Pc */
153: { NULL, NULL }, /* Pf */
154: { NULL, NULL }, /* Po */
155: { NULL, NULL }, /* Pq */
156: { NULL, NULL }, /* Qc */
157: { NULL, NULL }, /* Ql */
158: { NULL, NULL }, /* Qo */
159: { NULL, NULL }, /* Qq */
160: { NULL, NULL }, /* Re */
161: { NULL, NULL }, /* Rs */
162: { NULL, NULL }, /* Sc */
163: { NULL, NULL }, /* So */
164: { NULL, NULL }, /* Sq */
165: { NULL, NULL }, /* Sm */
166: { NULL, NULL }, /* Sx */
167: { NULL, NULL }, /* Sy */
168: { NULL, NULL }, /* Tn */
169: { NULL, NULL }, /* Ux */
170: { NULL, NULL }, /* Xc */
171: { NULL, NULL }, /* Xo */
172: { NULL, NULL }, /* Fo */
173: { NULL, NULL }, /* Fc */
174: { NULL, NULL }, /* Oo */
175: { NULL, NULL }, /* Oc */
176: { NULL, NULL }, /* Bk */
177: { NULL, NULL }, /* Ek */
178: { NULL, NULL }, /* Bt */
179: { NULL, NULL }, /* Hf */
180: { NULL, NULL }, /* Fr */
181: { NULL, NULL }, /* Ud */
182: { NULL, NULL }, /* Lb */
183: { NULL, NULL }, /* Lp */
1.3 schwarze 184: { NULL, post_lk }, /* Lk */
1.1 kristaps 185: { NULL, NULL }, /* Mt */
186: { NULL, NULL }, /* Brq */
187: { NULL, NULL }, /* Bro */
188: { NULL, NULL }, /* Brc */
189: { NULL, NULL }, /* %C */
190: { NULL, NULL }, /* Es */
191: { NULL, NULL }, /* En */
192: { NULL, NULL }, /* Dx */
193: { NULL, NULL }, /* %Q */
194: };
195:
196:
197: int
198: mdoc_action_pre(struct mdoc *m, const struct mdoc_node *n)
199: {
200:
201: switch (n->type) {
202: case (MDOC_ROOT):
203: /* FALLTHROUGH */
204: case (MDOC_TEXT):
205: return(1);
206: default:
207: break;
208: }
209:
210: if (NULL == mdoc_actions[n->tok].pre)
211: return(1);
212: return((*mdoc_actions[n->tok].pre)(m, n));
213: }
214:
215:
216: int
217: mdoc_action_post(struct mdoc *m)
218: {
219:
220: if (MDOC_ACTED & m->last->flags)
221: return(1);
222: m->last->flags |= MDOC_ACTED;
223:
224: switch (m->last->type) {
225: case (MDOC_TEXT):
226: /* FALLTHROUGH */
227: case (MDOC_ROOT):
228: return(1);
229: default:
230: break;
231: }
232:
233: if (NULL == mdoc_actions[m->last->tok].post)
234: return(1);
235: return((*mdoc_actions[m->last->tok].post)(m));
236: }
237:
238:
239: static int
240: concat(struct mdoc *m, const struct mdoc_node *n,
241: char *buf, size_t sz)
242: {
243:
244: for ( ; n; n = n->next) {
245: assert(MDOC_TEXT == n->type);
246: if (strlcat(buf, n->string, sz) >= sz)
247: return(nerr(m, n, ETOOLONG));
248: if (NULL == n->next)
249: continue;
250: if (strlcat(buf, " ", sz) >= sz)
251: return(nerr(m, n, ETOOLONG));
252: }
253:
254: return(1);
255: }
256:
257:
258: static int
259: perr(struct mdoc *m, int line, int pos, enum merr type)
260: {
261: char *p;
262:
263: p = NULL;
264: switch (type) {
265: case (ENUMFMT):
266: p = "bad number format";
267: break;
268: case (ETOOLONG):
269: p = "argument text too long";
270: break;
1.10 ! schwarze 271: case (EUTSNAME):
! 272: p = "utsname";
! 273: break;
1.1 kristaps 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
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)
326: return(verr(m, EMALLOC));
327:
328: m->last->args->argv[0].sz = 1;
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:
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);
344:
345: buf[0] = 0;
346: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
347: return(0);
1.2 schwarze 348:
1.1 kristaps 349: if (NULL == (m->meta.name = strdup(buf)))
350: return(verr(m, EMALLOC));
1.2 schwarze 351:
1.1 kristaps 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);
370:
371: buf[0] = 0;
372: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
373: return(0);
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:
389: return(vwarn(m, WBADSEC));
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)) {
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));
426: return(post_prol(m));
427: }
428:
429: /* Handles: `.Dt TITLE'
430: * --> title = TITLE, volume = local, msec = 0, arch = NULL
431: */
432:
433: if (NULL == (m->meta.title = strdup(n->string)))
434: return(verr(m, EMALLOC));
435:
436: if (NULL == (n = n->next)) {
437: if (NULL == (m->meta.vol = strdup("local")))
438: return(verr(m, EMALLOC));
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) {
451: if (NULL == (m->meta.vol = strdup(cp)))
452: return(verr(m, EMALLOC));
453: errno = 0;
454: lval = strtol(n->string, &ep, 10);
455: if (n->string[0] != '\0' && *ep == '\0')
456: m->meta.msec = (int)lval;
457: } else if (NULL == (m->meta.vol = strdup(n->string)))
458: return(verr(m, EMALLOC));
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);
473: if (NULL == (m->meta.vol = strdup(cp)))
474: return(verr(m, EMALLOC));
475: n = n->next;
476: } else {
477: cp = mdoc_a2arch(n->string);
478: if (NULL == cp) {
479: free(m->meta.vol);
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));
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);
500:
501: buf[0] = 0;
502: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
503: return(0);
504:
505: if (0 == buf[0]) {
506: if (-1 == uname(&utsname))
1.10 ! schwarze 507: return(verr(m, EUTSNAME));
1.1 kristaps 508: if (strlcat(buf, utsname.sysname, 64) >= 64)
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));
514: }
515:
516: if (NULL == (m->meta.os = strdup(buf)))
517: return(verr(m, EMALLOC));
518:
1.5 schwarze 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:
1.3 schwarze 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)))
552: if ( ! vwarn(m, WNOWIDTH))
553: return(0);
554: } else
555: sz = (int)strlen(n->string) + 1;
556: }
557:
558: if (-1 == snprintf(buf, sizeof(buf), "%dn", sz))
559: return(verr(m, ENUMFMT));
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);
568: sz = (int)(n->args->argc)++;
569:
570: n->args->argv = realloc(n->args->argv,
571: n->args->argc * sizeof(struct mdoc_argv));
572:
573: if (NULL == n->args->argv)
574: return(verr(m, EMALLOC));
575:
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 *));
581:
582: if (NULL == n->args->argv[sz].value)
583: return(verr(m, EMALLOC));
584: if (NULL == (n->args->argv[sz].value[0] = strdup(buf)))
585: return(verr(m, EMALLOC));
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:
615: if (0 == strcmp(p, "Ds"))
1.9 schwarze 616: width = 6;
1.1 kristaps 617: else if (MDOC_MAX == (tok = mdoc_hash_find(m->htab, p)))
618: return(1);
619: else if (0 == (width = mdoc_macro2len(tok)))
620: return(vwarn(m, WNOWIDTH));
621:
622: /* The value already exists: free and reallocate it. */
623:
624: if (-1 == snprintf(buf, sizeof(buf), "%zun", width))
625: return(verr(m, ENUMFMT));
626:
627: free(m->last->args->argv[i].value[0]);
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));
631:
632: return(1);
633: }
634:
635:
636: static int
1.6 schwarze 637: post_bl_head(POST_ARGS)
638: {
639: int i, c;
640: struct mdoc_node *n, *nn, *nnp;
641:
642: if (NULL == m->last->child)
643: return(1);
644:
645: n = m->last->parent;
646: assert(n->args);
647:
648: for (c = 0; c < (int)n->args->argc; c++)
649: if (MDOC_Column == n->args->argv[c].arg)
650: break;
651:
652: /* Only process -column. */
653:
654: if (c == (int)n->args->argc)
655: return(1);
656:
657: assert(0 == n->args->argv[c].sz);
658:
659: /*
660: * Accomodate for new-style groff column syntax. Shuffle the
661: * child nodes, all of which must be TEXT, as arguments for the
662: * column field. Then, delete the head children.
663: */
664:
1.8 schwarze 665: n->args->argv[c].sz = (size_t)m->last->nchild;
666: n->args->argv[c].value = malloc
667: ((size_t)m->last->nchild * sizeof(char *));
1.6 schwarze 668:
669: for (i = 0, nn = m->last->child; nn; i++) {
670: n->args->argv[c].value[i] = nn->string;
671: nn->string = NULL;
672: nnp = nn;
673: nn = nn->next;
674: mdoc_node_free(nnp);
675: }
676:
1.8 schwarze 677: m->last->nchild = 0;
1.6 schwarze 678: m->last->child = NULL;
1.8 schwarze 679:
1.6 schwarze 680: return(1);
681: }
682:
683:
684: static int
1.1 kristaps 685: post_bl(POST_ARGS)
686: {
687: int i, r, len;
688:
1.6 schwarze 689: if (MDOC_HEAD == m->last->type)
690: return(post_bl_head(m));
1.1 kristaps 691: if (MDOC_BLOCK != m->last->type)
692: return(1);
693:
694: /*
695: * These are fairly complicated, so we've broken them into two
696: * functions. post_bl_tagwidth() is called when a -tag is
697: * specified, but no -width (it must be guessed). The second
698: * when a -width is specified (macro indicators must be
699: * rewritten into real lengths).
700: */
701:
702: len = (int)(m->last->args ? m->last->args->argc : 0);
703:
704: for (r = i = 0; i < len; i++) {
705: if (MDOC_Tag == m->last->args->argv[i].arg)
706: r |= 1 << 0;
707: if (MDOC_Width == m->last->args->argv[i].arg)
708: r |= 1 << 1;
709: }
710:
711: if (r & (1 << 0) && ! (r & (1 << 1))) {
712: if ( ! post_bl_tagwidth(m))
713: return(0);
714: } else if (r & (1 << 1))
715: if ( ! post_bl_width(m))
716: return(0);
717:
1.3 schwarze 718: return(1);
719: }
720:
721:
722: static int
723: post_lk(POST_ARGS)
724: {
725: struct mdoc_node *n;
726:
727: if (m->last->child)
728: return(1);
729:
730: n = m->last;
731: m->next = MDOC_NEXT_CHILD;
732: /* FIXME: this isn't documented anywhere! */
733: if ( ! mdoc_word_alloc(m, m->last->line,
734: m->last->pos, "~"))
735: return(0);
736:
737: m->last = n;
738: m->next = MDOC_NEXT_SIBLING;
1.1 kristaps 739: return(1);
740: }
741:
742:
743: static int
744: post_ar(POST_ARGS)
745: {
746: struct mdoc_node *n;
747:
748: if (m->last->child)
749: return(1);
750:
751: n = m->last;
752: m->next = MDOC_NEXT_CHILD;
753: if ( ! mdoc_word_alloc(m, m->last->line,
754: m->last->pos, "file"))
755: return(0);
756: m->next = MDOC_NEXT_SIBLING;
757: if ( ! mdoc_word_alloc(m, m->last->line,
758: m->last->pos, "..."))
759: return(0);
760:
761: m->last = n;
762: m->next = MDOC_NEXT_SIBLING;
763: return(1);
764: }
765:
766:
767: static int
768: post_dd(POST_ARGS)
769: {
770: char buf[64];
771:
772: buf[0] = 0;
773: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
774: return(0);
775:
776: if (0 == (m->meta.date = mdoc_atotime(buf))) {
777: if ( ! vwarn(m, WBADDATE))
778: return(0);
779: m->meta.date = time(NULL);
780: }
781:
782: return(post_prol(m));
783: }
784:
785:
786: static int
787: post_prol(POST_ARGS)
788: {
789: struct mdoc_node *n;
790:
791: /*
792: * The end document shouldn't have the prologue macros as part
793: * of the syntax tree (they encompass only meta-data).
794: */
795:
796: if (m->last->parent->child == m->last)
797: m->last->parent->child = m->last->prev;
798: if (m->last->prev)
799: m->last->prev->next = NULL;
800:
801: n = m->last;
802: assert(NULL == m->last->next);
803:
804: if (m->last->prev) {
805: m->last = m->last->prev;
806: m->next = MDOC_NEXT_SIBLING;
807: } else {
808: m->last = m->last->parent;
809: m->next = MDOC_NEXT_CHILD;
810: }
811:
812: mdoc_node_freelist(n);
813: return(1);
814: }
815:
816:
817: static int
818: pre_dl(PRE_ARGS)
819: {
820:
1.7 schwarze 821: if (MDOC_BODY == n->type)
822: m->flags |= MDOC_LITERAL;
1.1 kristaps 823: return(1);
824: }
825:
826:
827: static int
828: pre_bd(PRE_ARGS)
829: {
830: int i;
831:
832: if (MDOC_BODY != n->type)
833: return(1);
834:
835: /* Enter literal context if `Bd -literal' or * -unfilled'. */
836:
837: for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
838: if (MDOC_Literal == n->args->argv[i].arg)
839: break;
840: else if (MDOC_Unfilled == n->args->argv[i].arg)
841: break;
842:
843: if (i < (int)n->args->argc)
844: m->flags |= MDOC_LITERAL;
845:
846: return(1);
847: }
848:
849:
850: static int
851: post_display(POST_ARGS)
852: {
853:
854: if (MDOC_BODY == m->last->type)
855: m->flags &= ~MDOC_LITERAL;
856: return(1);
857: }
858:
859: