Annotation of mandoc/mdoc_action.c, Revision 1.23
1.23 ! kristaps 1: /* $Id: mdoc_action.c,v 1.22 2009/07/06 11:14:03 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: #define PRE_ARGS struct mdoc *m, const struct mdoc_node *n
28: #define POST_ARGS struct mdoc *m
29:
30: struct actions {
31: int (*pre)(PRE_ARGS);
32: int (*post)(POST_ARGS);
33: };
34:
1.2 kristaps 35: static int concat(struct mdoc *, const struct mdoc_node *,
36: char *, size_t);
1.1 kristaps 37:
38: static int post_ar(POST_ARGS);
39: static int post_bl(POST_ARGS);
1.14 kristaps 40: static int post_bl_head(POST_ARGS);
1.1 kristaps 41: static int post_bl_width(POST_ARGS);
42: static int post_bl_tagwidth(POST_ARGS);
43: static int post_dd(POST_ARGS);
44: static int post_display(POST_ARGS);
45: static int post_dt(POST_ARGS);
1.10 kristaps 46: static int post_lk(POST_ARGS);
1.1 kristaps 47: static int post_nm(POST_ARGS);
48: static int post_os(POST_ARGS);
49: static int post_prol(POST_ARGS);
50: static int post_sh(POST_ARGS);
51: static int post_std(POST_ARGS);
52:
53: static int pre_bd(PRE_ARGS);
54: static int pre_dl(PRE_ARGS);
55:
56: const struct actions mdoc_actions[MDOC_MAX] = {
1.12 kristaps 57: { NULL, NULL }, /* Ap */
1.1 kristaps 58: { NULL, post_dd }, /* Dd */
59: { NULL, post_dt }, /* Dt */
60: { NULL, post_os }, /* Os */
61: { NULL, post_sh }, /* Sh */
62: { NULL, NULL }, /* Ss */
63: { NULL, NULL }, /* Pp */
64: { NULL, NULL }, /* D1 */
65: { pre_dl, post_display }, /* Dl */
66: { pre_bd, post_display }, /* Bd */
67: { NULL, NULL }, /* Ed */
68: { NULL, post_bl }, /* Bl */
69: { NULL, NULL }, /* El */
70: { NULL, NULL }, /* It */
71: { NULL, NULL }, /* Ad */
72: { NULL, NULL }, /* An */
73: { NULL, post_ar }, /* Ar */
1.19 kristaps 74: { NULL, NULL }, /* Cd */ /* FIXME: tabs are accepted! */
1.1 kristaps 75: { NULL, NULL }, /* Cm */
76: { NULL, NULL }, /* Dv */
77: { NULL, NULL }, /* Er */
78: { NULL, NULL }, /* Ev */
79: { NULL, post_std }, /* Ex */
80: { NULL, NULL }, /* Fa */
81: { NULL, NULL }, /* Fd */
82: { NULL, NULL }, /* Fl */
83: { NULL, NULL }, /* Fn */
84: { NULL, NULL }, /* Ft */
85: { NULL, NULL }, /* Ic */
86: { NULL, NULL }, /* In */
87: { NULL, NULL }, /* Li */
88: { NULL, NULL }, /* Nd */
89: { NULL, post_nm }, /* Nm */
90: { NULL, NULL }, /* Op */
91: { NULL, NULL }, /* Ot */
92: { NULL, NULL }, /* Pa */
93: { NULL, post_std }, /* Rv */
94: { NULL, NULL }, /* St */
95: { NULL, NULL }, /* Va */
96: { NULL, NULL }, /* Vt */
97: { NULL, NULL }, /* Xr */
98: { NULL, NULL }, /* %A */
99: { NULL, NULL }, /* %B */
100: { NULL, NULL }, /* %D */
101: { NULL, NULL }, /* %I */
102: { NULL, NULL }, /* %J */
103: { NULL, NULL }, /* %N */
104: { NULL, NULL }, /* %O */
105: { NULL, NULL }, /* %P */
106: { NULL, NULL }, /* %R */
107: { NULL, NULL }, /* %T */
108: { NULL, NULL }, /* %V */
109: { NULL, NULL }, /* Ac */
110: { NULL, NULL }, /* Ao */
111: { NULL, NULL }, /* Aq */
112: { NULL, NULL }, /* At */
113: { NULL, NULL }, /* Bc */
114: { NULL, NULL }, /* Bf */
115: { NULL, NULL }, /* Bo */
116: { NULL, NULL }, /* Bq */
117: { NULL, NULL }, /* Bsx */
118: { NULL, NULL }, /* Bx */
119: { NULL, NULL }, /* Db */
120: { NULL, NULL }, /* Dc */
121: { NULL, NULL }, /* Do */
122: { NULL, NULL }, /* Dq */
123: { NULL, NULL }, /* Ec */
124: { NULL, NULL }, /* Ef */
125: { NULL, NULL }, /* Em */
126: { NULL, NULL }, /* Eo */
127: { NULL, NULL }, /* Fx */
128: { NULL, NULL }, /* Ms */
129: { NULL, NULL }, /* No */
130: { NULL, NULL }, /* Ns */
131: { NULL, NULL }, /* Nx */
132: { NULL, NULL }, /* Ox */
133: { NULL, NULL }, /* Pc */
134: { NULL, NULL }, /* Pf */
135: { NULL, NULL }, /* Po */
136: { NULL, NULL }, /* Pq */
137: { NULL, NULL }, /* Qc */
138: { NULL, NULL }, /* Ql */
139: { NULL, NULL }, /* Qo */
140: { NULL, NULL }, /* Qq */
141: { NULL, NULL }, /* Re */
142: { NULL, NULL }, /* Rs */
143: { NULL, NULL }, /* Sc */
144: { NULL, NULL }, /* So */
145: { NULL, NULL }, /* Sq */
146: { NULL, NULL }, /* Sm */
147: { NULL, NULL }, /* Sx */
148: { NULL, NULL }, /* Sy */
149: { NULL, NULL }, /* Tn */
150: { NULL, NULL }, /* Ux */
151: { NULL, NULL }, /* Xc */
152: { NULL, NULL }, /* Xo */
153: { NULL, NULL }, /* Fo */
154: { NULL, NULL }, /* Fc */
155: { NULL, NULL }, /* Oo */
156: { NULL, NULL }, /* Oc */
157: { NULL, NULL }, /* Bk */
158: { NULL, NULL }, /* Ek */
159: { NULL, NULL }, /* Bt */
160: { NULL, NULL }, /* Hf */
161: { NULL, NULL }, /* Fr */
162: { NULL, NULL }, /* Ud */
163: { NULL, NULL }, /* Lb */
164: { NULL, NULL }, /* Lp */
1.10 kristaps 165: { NULL, post_lk }, /* Lk */
1.1 kristaps 166: { NULL, NULL }, /* Mt */
167: { NULL, NULL }, /* Brq */
168: { NULL, NULL }, /* Bro */
169: { NULL, NULL }, /* Brc */
170: { NULL, NULL }, /* %C */
171: { NULL, NULL }, /* Es */
172: { NULL, NULL }, /* En */
173: { NULL, NULL }, /* Dx */
174: { NULL, NULL }, /* %Q */
175: };
176:
177:
1.2 kristaps 178: #ifdef __linux__
179: extern size_t strlcat(char *, const char *, size_t);
180: #endif
181:
182:
1.1 kristaps 183: int
184: mdoc_action_pre(struct mdoc *m, const struct mdoc_node *n)
185: {
186:
187: switch (n->type) {
188: case (MDOC_ROOT):
1.2 kristaps 189: /* FALLTHROUGH */
1.1 kristaps 190: case (MDOC_TEXT):
1.2 kristaps 191: return(1);
192: default:
1.1 kristaps 193: break;
194: }
1.2 kristaps 195:
1.6 kristaps 196: if (NULL == mdoc_actions[n->tok].pre)
1.2 kristaps 197: return(1);
1.6 kristaps 198: return((*mdoc_actions[n->tok].pre)(m, n));
1.1 kristaps 199: }
200:
201:
202: int
203: mdoc_action_post(struct mdoc *m)
204: {
205:
206: if (MDOC_ACTED & m->last->flags)
207: return(1);
208: m->last->flags |= MDOC_ACTED;
209:
210: switch (m->last->type) {
211: case (MDOC_TEXT):
1.2 kristaps 212: /* FALLTHROUGH */
1.1 kristaps 213: case (MDOC_ROOT):
1.2 kristaps 214: return(1);
215: default:
1.1 kristaps 216: break;
217: }
1.2 kristaps 218:
219: if (NULL == mdoc_actions[m->last->tok].post)
220: return(1);
221: return((*mdoc_actions[m->last->tok].post)(m));
222: }
223:
224:
225: static int
226: concat(struct mdoc *m, const struct mdoc_node *n,
227: char *buf, size_t sz)
228: {
229:
230: for ( ; n; n = n->next) {
231: assert(MDOC_TEXT == n->type);
232: if (strlcat(buf, n->string, sz) >= sz)
1.23 ! kristaps 233: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 234: if (NULL == n->next)
235: continue;
236: if (strlcat(buf, " ", sz) >= sz)
1.23 ! kristaps 237: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 238: }
239:
1.1 kristaps 240: return(1);
241: }
242:
243:
244: static int
245: post_std(POST_ARGS)
246: {
247:
248: /*
249: * If '-std' is invoked without an argument, fill it in with our
250: * name (if it's been set).
251: */
252:
253: if (NULL == m->last->args)
254: return(1);
255: if (m->last->args->argv[0].sz)
256: return(1);
257:
258: assert(m->meta.name);
259:
260: m->last->args->argv[0].value = calloc(1, sizeof(char *));
261: if (NULL == m->last->args->argv[0].value)
1.23 ! kristaps 262: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 263:
264: m->last->args->argv[0].sz = 1;
1.2 kristaps 265: m->last->args->argv[0].value[0] = strdup(m->meta.name);
266: if (NULL == m->last->args->argv[0].value[0])
1.23 ! kristaps 267: return(mdoc_nerr(m, m->last, EMALLOC));
1.2 kristaps 268:
1.1 kristaps 269: return(1);
270: }
271:
272:
273: static int
274: post_nm(POST_ARGS)
275: {
276: char buf[64];
277:
278: if (m->meta.name)
279: return(1);
1.5 kristaps 280:
281: buf[0] = 0;
1.2 kristaps 282: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
283: return(0);
1.6 kristaps 284:
1.2 kristaps 285: if (NULL == (m->meta.name = strdup(buf)))
1.23 ! kristaps 286: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 287:
288: return(1);
289: }
290:
291:
292: static int
293: post_sh(POST_ARGS)
294: {
295: enum mdoc_sec sec;
296: char buf[64];
297:
298: /*
299: * We keep track of the current section /and/ the "named"
300: * section, which is one of the conventional ones, in order to
301: * check ordering.
302: */
303:
304: if (MDOC_HEAD != m->last->type)
305: return(1);
1.5 kristaps 306:
307: buf[0] = 0;
1.2 kristaps 308: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
309: return(0);
1.1 kristaps 310: if (SEC_CUSTOM != (sec = mdoc_atosec(buf)))
311: m->lastnamed = sec;
312:
313: switch ((m->lastsec = sec)) {
314: case (SEC_RETURN_VALUES):
315: /* FALLTHROUGH */
316: case (SEC_ERRORS):
317: switch (m->meta.msec) {
318: case (2):
319: /* FALLTHROUGH */
320: case (3):
321: /* FALLTHROUGH */
322: case (9):
323: break;
324: default:
1.23 ! kristaps 325: return(mdoc_nwarn(m, m->last, EBADSEC));
1.1 kristaps 326: }
327: break;
328: default:
329: break;
330: }
331: return(1);
332: }
333:
334:
335: static int
336: post_dt(POST_ARGS)
337: {
338: struct mdoc_node *n;
339: const char *cp;
340: char *ep;
341: long lval;
342:
343: if (m->meta.title)
344: free(m->meta.title);
345: if (m->meta.vol)
346: free(m->meta.vol);
347: if (m->meta.arch)
348: free(m->meta.arch);
349:
350: m->meta.title = m->meta.vol = m->meta.arch = NULL;
351: m->meta.msec = 0;
352:
353: /* Handles: `.Dt'
354: * --> title = unknown, volume = local, msec = 0, arch = NULL
355: */
356:
357: if (NULL == (n = m->last->child)) {
1.2 kristaps 358: if (NULL == (m->meta.title = strdup("unknown")))
1.23 ! kristaps 359: return(mdoc_nerr(m, m->last, EMALLOC));
1.2 kristaps 360: if (NULL == (m->meta.vol = strdup("local")))
1.23 ! kristaps 361: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 362: return(post_prol(m));
363: }
364:
365: /* Handles: `.Dt TITLE'
366: * --> title = TITLE, volume = local, msec = 0, arch = NULL
367: */
368:
1.2 kristaps 369: if (NULL == (m->meta.title = strdup(n->string)))
1.23 ! kristaps 370: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 371:
372: if (NULL == (n = n->next)) {
1.2 kristaps 373: if (NULL == (m->meta.vol = strdup("local")))
1.23 ! kristaps 374: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 375: return(post_prol(m));
376: }
377:
378: /* Handles: `.Dt TITLE SEC'
379: * --> title = TITLE, volume = SEC is msec ?
380: * format(msec) : SEC,
381: * msec = SEC is msec ? atoi(msec) : 0,
382: * arch = NULL
383: */
384:
385: cp = mdoc_a2msec(n->string);
386: if (cp) {
1.2 kristaps 387: if (NULL == (m->meta.vol = strdup(cp)))
1.23 ! kristaps 388: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 389: errno = 0;
390: lval = strtol(n->string, &ep, 10);
391: if (n->string[0] != '\0' && *ep == '\0')
392: m->meta.msec = (int)lval;
1.2 kristaps 393: } else if (NULL == (m->meta.vol = strdup(n->string)))
1.23 ! kristaps 394: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 395:
396: if (NULL == (n = n->next))
397: return(post_prol(m));
398:
399: /* Handles: `.Dt TITLE SEC VOL'
400: * --> title = TITLE, volume = VOL is vol ?
401: * format(VOL) :
402: * VOL is arch ? format(arch) :
403: * VOL
404: */
405:
406: cp = mdoc_a2vol(n->string);
407: if (cp) {
408: free(m->meta.vol);
1.2 kristaps 409: if (NULL == (m->meta.vol = strdup(cp)))
1.23 ! kristaps 410: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 411: n = n->next;
412: } else {
413: cp = mdoc_a2arch(n->string);
414: if (NULL == cp) {
415: free(m->meta.vol);
1.2 kristaps 416: if (NULL == (m->meta.vol = strdup(n->string)))
1.23 ! kristaps 417: return(mdoc_nerr(m, m->last, EMALLOC));
1.2 kristaps 418: } else if (NULL == (m->meta.arch = strdup(cp)))
1.23 ! kristaps 419: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 420: }
421:
422: /* Ignore any subsequent parameters... */
423:
424: return(post_prol(m));
425: }
426:
427:
428: static int
429: post_os(POST_ARGS)
430: {
431: char buf[64];
432: struct utsname utsname;
433:
434: if (m->meta.os)
435: free(m->meta.os);
1.4 kristaps 436:
437: buf[0] = 0;
1.2 kristaps 438: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
439: return(0);
1.1 kristaps 440:
441: if (0 == buf[0]) {
442: if (-1 == uname(&utsname))
1.23 ! kristaps 443: return(mdoc_nerr(m, m->last, EUTSNAME));
1.4 kristaps 444: if (strlcat(buf, utsname.sysname, 64) >= 64)
1.23 ! kristaps 445: return(mdoc_nerr(m, m->last, ETOOLONG));
1.2 kristaps 446: if (strlcat(buf, " ", 64) >= 64)
1.23 ! kristaps 447: return(mdoc_nerr(m, m->last, ETOOLONG));
1.2 kristaps 448: if (strlcat(buf, utsname.release, 64) >= 64)
1.23 ! kristaps 449: return(mdoc_nerr(m, m->last, ETOOLONG));
1.1 kristaps 450: }
451:
1.2 kristaps 452: if (NULL == (m->meta.os = strdup(buf)))
1.23 ! kristaps 453: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 454:
1.13 kristaps 455: m->flags |= MDOC_PBODY;
1.1 kristaps 456: return(post_prol(m));
457: }
458:
459:
460: /*
461: * Calculate the -width for a `Bl -tag' list if it hasn't been provided.
462: * Uses the first head macro.
463: */
464: static int
465: post_bl_tagwidth(struct mdoc *m)
466: {
467: struct mdoc_node *n;
468: int sz;
469: char buf[32];
470:
471: /*
472: * Use the text width, if a text node, or the default macro
473: * width if a macro.
474: */
475:
1.11 kristaps 476: n = m->last->body->child;
477: if (n) {
1.1 kristaps 478: assert(MDOC_BLOCK == n->type);
479: assert(MDOC_It == n->tok);
480: n = n->head->child;
481: }
482:
483: sz = 10; /* Default size. */
484:
485: if (n) {
486: if (MDOC_TEXT != n->type) {
487: if (0 == (sz = (int)mdoc_macro2len(n->tok)))
1.23 ! kristaps 488: if ( ! mdoc_nwarn(m, m->last, ENOWIDTH))
1.1 kristaps 489: return(0);
490: } else
491: sz = (int)strlen(n->string) + 1;
492: }
493:
1.2 kristaps 494: if (-1 == snprintf(buf, sizeof(buf), "%dn", sz))
1.23 ! kristaps 495: return(mdoc_nerr(m, m->last, ENUMFMT));
1.1 kristaps 496:
497: /*
498: * We have to dynamically add this to the macro's argument list.
499: * We're guaranteed that a MDOC_Width doesn't already exist.
500: */
501:
502: n = m->last;
503: assert(n->args);
1.2 kristaps 504: sz = (int)(n->args->argc)++;
1.1 kristaps 505:
1.2 kristaps 506: n->args->argv = realloc(n->args->argv,
1.1 kristaps 507: n->args->argc * sizeof(struct mdoc_argv));
508:
1.2 kristaps 509: if (NULL == n->args->argv)
1.23 ! kristaps 510: return(mdoc_nerr(m, m->last, EMALLOC));
1.2 kristaps 511:
1.1 kristaps 512: n->args->argv[sz].arg = MDOC_Width;
513: n->args->argv[sz].line = m->last->line;
514: n->args->argv[sz].pos = m->last->pos;
515: n->args->argv[sz].sz = 1;
516: n->args->argv[sz].value = calloc(1, sizeof(char *));
1.2 kristaps 517:
1.1 kristaps 518: if (NULL == n->args->argv[sz].value)
1.23 ! kristaps 519: return(mdoc_nerr(m, m->last, EMALLOC));
1.2 kristaps 520: if (NULL == (n->args->argv[sz].value[0] = strdup(buf)))
1.23 ! kristaps 521: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 522:
523: return(1);
524: }
525:
526:
527: static int
528: post_bl_width(struct mdoc *m)
529: {
530: size_t width;
531: int i, tok;
532: char buf[32];
533: char *p;
534:
535: if (NULL == m->last->args)
536: return(1);
537:
538: for (i = 0; i < (int)m->last->args->argc; i++)
539: if (MDOC_Width == m->last->args->argv[i].arg)
540: break;
541:
542: if (i == (int)m->last->args->argc)
543: return(1);
544: p = m->last->args->argv[i].value[0];
545:
546: /*
547: * If the value to -width is a macro, then we re-write it to be
548: * the macro's width as set in share/tmac/mdoc/doc-common.
549: */
550:
1.2 kristaps 551: if (0 == strcmp(p, "Ds"))
1.18 kristaps 552: width = 6;
1.3 kristaps 553: else if (MDOC_MAX == (tok = mdoc_hash_find(m->htab, p)))
1.1 kristaps 554: return(1);
555: else if (0 == (width = mdoc_macro2len(tok)))
1.23 ! kristaps 556: return(mdoc_nwarn(m, m->last, ENOWIDTH));
1.1 kristaps 557:
558: /* The value already exists: free and reallocate it. */
559:
1.2 kristaps 560: if (-1 == snprintf(buf, sizeof(buf), "%zun", width))
1.23 ! kristaps 561: return(mdoc_nerr(m, m->last, ENUMFMT));
1.1 kristaps 562:
563: free(m->last->args->argv[i].value[0]);
1.2 kristaps 564: m->last->args->argv[i].value[0] = strdup(buf);
565: if (NULL == m->last->args->argv[i].value[0])
1.23 ! kristaps 566: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 567:
568: return(1);
569: }
570:
571:
572: static int
1.14 kristaps 573: post_bl_head(POST_ARGS)
574: {
575: int i, c;
576: struct mdoc_node *n, *nn, *nnp;
577:
578: if (NULL == m->last->child)
579: return(1);
580:
581: n = m->last->parent;
582: assert(n->args);
583:
584: for (c = 0; c < (int)n->args->argc; c++)
585: if (MDOC_Column == n->args->argv[c].arg)
586: break;
587:
588: /* Only process -column. */
589:
590: if (c == (int)n->args->argc)
591: return(1);
592:
593: assert(0 == n->args->argv[c].sz);
594:
595: /*
596: * Accomodate for new-style groff column syntax. Shuffle the
597: * child nodes, all of which must be TEXT, as arguments for the
598: * column field. Then, delete the head children.
599: */
600:
1.17 kristaps 601: n->args->argv[c].sz = (size_t)m->last->nchild;
602: n->args->argv[c].value = malloc
603: ((size_t)m->last->nchild * sizeof(char *));
1.14 kristaps 604:
605: for (i = 0, nn = m->last->child; nn; i++) {
606: n->args->argv[c].value[i] = nn->string;
607: nn->string = NULL;
608: nnp = nn;
609: nn = nn->next;
610: mdoc_node_free(nnp);
611: }
612:
1.17 kristaps 613: m->last->nchild = 0;
1.14 kristaps 614: m->last->child = NULL;
1.17 kristaps 615:
1.14 kristaps 616: return(1);
617: }
618:
619:
620: static int
1.1 kristaps 621: post_bl(POST_ARGS)
622: {
623: int i, r, len;
624:
1.14 kristaps 625: if (MDOC_HEAD == m->last->type)
626: return(post_bl_head(m));
1.1 kristaps 627: if (MDOC_BLOCK != m->last->type)
628: return(1);
629:
630: /*
631: * These are fairly complicated, so we've broken them into two
632: * functions. post_bl_tagwidth() is called when a -tag is
633: * specified, but no -width (it must be guessed). The second
634: * when a -width is specified (macro indicators must be
635: * rewritten into real lengths).
636: */
637:
638: len = (int)(m->last->args ? m->last->args->argc : 0);
639:
640: for (r = i = 0; i < len; i++) {
641: if (MDOC_Tag == m->last->args->argv[i].arg)
642: r |= 1 << 0;
643: if (MDOC_Width == m->last->args->argv[i].arg)
644: r |= 1 << 1;
645: }
646:
647: if (r & (1 << 0) && ! (r & (1 << 1))) {
648: if ( ! post_bl_tagwidth(m))
649: return(0);
650: } else if (r & (1 << 1))
651: if ( ! post_bl_width(m))
652: return(0);
653:
654: return(1);
655: }
656:
657:
658: static int
1.10 kristaps 659: post_lk(POST_ARGS)
660: {
661: struct mdoc_node *n;
662:
663: if (m->last->child)
664: return(1);
665:
666: n = m->last;
667: m->next = MDOC_NEXT_CHILD;
668: /* FIXME: this isn't documented anywhere! */
669: if ( ! mdoc_word_alloc(m, m->last->line,
670: m->last->pos, "~"))
671: return(0);
672:
673: m->last = n;
674: m->next = MDOC_NEXT_SIBLING;
675: return(1);
676: }
677:
678:
679: static int
1.1 kristaps 680: post_ar(POST_ARGS)
681: {
682: struct mdoc_node *n;
683:
684: if (m->last->child)
685: return(1);
686:
687: n = m->last;
688: m->next = MDOC_NEXT_CHILD;
689: if ( ! mdoc_word_alloc(m, m->last->line,
690: m->last->pos, "file"))
691: return(0);
692: m->next = MDOC_NEXT_SIBLING;
693: if ( ! mdoc_word_alloc(m, m->last->line,
694: m->last->pos, "..."))
695: return(0);
696:
697: m->last = n;
698: m->next = MDOC_NEXT_SIBLING;
699: return(1);
700: }
701:
702:
703: static int
704: post_dd(POST_ARGS)
705: {
706: char buf[64];
707:
1.5 kristaps 708: buf[0] = 0;
1.2 kristaps 709: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
710: return(0);
1.1 kristaps 711:
712: if (0 == (m->meta.date = mdoc_atotime(buf))) {
1.23 ! kristaps 713: if ( ! mdoc_nwarn(m, m->last, EBADDATE))
1.1 kristaps 714: return(0);
715: m->meta.date = time(NULL);
716: }
717:
718: return(post_prol(m));
719: }
720:
721:
722: static int
723: post_prol(POST_ARGS)
724: {
725: struct mdoc_node *n;
726:
727: /*
728: * The end document shouldn't have the prologue macros as part
729: * of the syntax tree (they encompass only meta-data).
730: */
731:
732: if (m->last->parent->child == m->last)
733: m->last->parent->child = m->last->prev;
734: if (m->last->prev)
735: m->last->prev->next = NULL;
736:
737: n = m->last;
738: assert(NULL == m->last->next);
739:
740: if (m->last->prev) {
741: m->last = m->last->prev;
742: m->next = MDOC_NEXT_SIBLING;
743: } else {
744: m->last = m->last->parent;
745: m->next = MDOC_NEXT_CHILD;
746: }
747:
748: mdoc_node_freelist(n);
749: return(1);
750: }
751:
752:
753: static int
754: pre_dl(PRE_ARGS)
755: {
756:
1.16 kristaps 757: if (MDOC_BODY == n->type)
758: m->flags |= MDOC_LITERAL;
1.1 kristaps 759: return(1);
760: }
761:
762:
763: static int
764: pre_bd(PRE_ARGS)
765: {
766: int i;
767:
768: if (MDOC_BODY != n->type)
769: return(1);
770:
1.2 kristaps 771: /* Enter literal context if `Bd -literal' or * -unfilled'. */
1.1 kristaps 772:
1.2 kristaps 773: for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
1.1 kristaps 774: if (MDOC_Literal == n->args->argv[i].arg)
775: break;
776: else if (MDOC_Unfilled == n->args->argv[i].arg)
777: break;
778:
779: if (i < (int)n->args->argc)
780: m->flags |= MDOC_LITERAL;
781:
782: return(1);
783: }
784:
785:
786: static int
787: post_display(POST_ARGS)
788: {
789:
790: if (MDOC_BODY == m->last->type)
791: m->flags &= ~MDOC_LITERAL;
792: return(1);
793: }
794:
795:
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