Annotation of mandoc/mdoc_action.c, Revision 1.21
1.21 ! kristaps 1: /* $Id: mdoc_action.c,v 1.20 2009/06/25 08:42:06 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,
1.20 kristaps 36: EUTSNAME,
1.2 kristaps 37: ENUMFMT
38: };
39:
1.1 kristaps 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);
1.2 kristaps 49: static int perr(struct mdoc *, int, int, enum merr);
50: static int concat(struct mdoc *, const struct mdoc_node *,
51: char *, size_t);
1.1 kristaps 52:
53: static int post_ar(POST_ARGS);
54: static int post_bl(POST_ARGS);
1.14 kristaps 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);
1.10 kristaps 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:
1.2 kristaps 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))
1.1 kristaps 74:
75: const struct actions mdoc_actions[MDOC_MAX] = {
1.12 kristaps 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 */
1.19 kristaps 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 */
1.10 kristaps 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:
1.2 kristaps 197: #ifdef __linux__
198: extern size_t strlcat(char *, const char *, size_t);
199: #endif
200:
201:
1.1 kristaps 202: int
203: mdoc_action_pre(struct mdoc *m, const struct mdoc_node *n)
204: {
205:
206: switch (n->type) {
207: case (MDOC_ROOT):
1.2 kristaps 208: /* FALLTHROUGH */
1.1 kristaps 209: case (MDOC_TEXT):
1.2 kristaps 210: return(1);
211: default:
1.1 kristaps 212: break;
213: }
1.2 kristaps 214:
1.6 kristaps 215: if (NULL == mdoc_actions[n->tok].pre)
1.2 kristaps 216: return(1);
1.6 kristaps 217: return((*mdoc_actions[n->tok].pre)(m, n));
1.1 kristaps 218: }
219:
220:
221: int
222: mdoc_action_post(struct mdoc *m)
223: {
224:
225: if (MDOC_ACTED & m->last->flags)
226: return(1);
227: m->last->flags |= MDOC_ACTED;
228:
229: switch (m->last->type) {
230: case (MDOC_TEXT):
1.2 kristaps 231: /* FALLTHROUGH */
1.1 kristaps 232: case (MDOC_ROOT):
1.2 kristaps 233: return(1);
234: default:
1.1 kristaps 235: break;
236: }
1.2 kristaps 237:
238: if (NULL == mdoc_actions[m->last->tok].post)
239: return(1);
240: return((*mdoc_actions[m->last->tok].post)(m));
241: }
242:
243:
244: static int
245: concat(struct mdoc *m, const struct mdoc_node *n,
246: char *buf, size_t sz)
247: {
248:
249: for ( ; n; n = n->next) {
250: assert(MDOC_TEXT == n->type);
251: if (strlcat(buf, n->string, sz) >= sz)
252: return(nerr(m, n, ETOOLONG));
253: if (NULL == n->next)
254: continue;
255: if (strlcat(buf, " ", sz) >= sz)
256: return(nerr(m, n, ETOOLONG));
257: }
258:
1.1 kristaps 259: return(1);
260: }
261:
262:
263: static int
1.2 kristaps 264: perr(struct mdoc *m, int line, int pos, enum merr type)
265: {
266: char *p;
267:
268: p = NULL;
269: switch (type) {
270: case (ENUMFMT):
271: p = "bad number format";
272: break;
273: case (ETOOLONG):
274: p = "argument text too long";
275: break;
1.20 kristaps 276: case (EUTSNAME):
277: p = "utsname";
278: break;
1.2 kristaps 279: case (EMALLOC):
280: p = "memory exhausted";
281: break;
282: }
283: assert(p);
284: return(mdoc_perr(m, line, pos, p));
285: }
286:
287:
288: static int
1.1 kristaps 289: pwarn(struct mdoc *m, int line, int pos, enum mwarn type)
290: {
291: char *p;
292:
293: p = NULL;
1.21 ! kristaps 294:
1.1 kristaps 295: switch (type) {
296: case (WBADSEC):
297: p = "inappropriate document section in manual section";
298: break;
299: case (WNOWIDTH):
300: p = "cannot determine default width";
301: break;
302: case (WBADDATE):
303: p = "malformed date syntax";
304: break;
305: }
1.21 ! kristaps 306:
1.1 kristaps 307: assert(p);
1.21 ! kristaps 308: return(mdoc_pwarn(m, line, pos, p));
1.1 kristaps 309: }
310:
311:
312: static int
313: post_std(POST_ARGS)
314: {
315:
316: /*
317: * If '-std' is invoked without an argument, fill it in with our
318: * name (if it's been set).
319: */
320:
321: if (NULL == m->last->args)
322: return(1);
323: if (m->last->args->argv[0].sz)
324: return(1);
325:
326: assert(m->meta.name);
327:
328: m->last->args->argv[0].value = calloc(1, sizeof(char *));
329: if (NULL == m->last->args->argv[0].value)
1.2 kristaps 330: return(verr(m, EMALLOC));
1.1 kristaps 331:
332: m->last->args->argv[0].sz = 1;
1.2 kristaps 333: m->last->args->argv[0].value[0] = strdup(m->meta.name);
334: if (NULL == m->last->args->argv[0].value[0])
335: return(verr(m, EMALLOC));
336:
1.1 kristaps 337: return(1);
338: }
339:
340:
341: static int
342: post_nm(POST_ARGS)
343: {
344: char buf[64];
345:
346: if (m->meta.name)
347: return(1);
1.5 kristaps 348:
349: buf[0] = 0;
1.2 kristaps 350: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
351: return(0);
1.6 kristaps 352:
1.2 kristaps 353: if (NULL == (m->meta.name = strdup(buf)))
354: return(verr(m, EMALLOC));
1.1 kristaps 355:
356: return(1);
357: }
358:
359:
360: static int
361: post_sh(POST_ARGS)
362: {
363: enum mdoc_sec sec;
364: char buf[64];
365:
366: /*
367: * We keep track of the current section /and/ the "named"
368: * section, which is one of the conventional ones, in order to
369: * check ordering.
370: */
371:
372: if (MDOC_HEAD != m->last->type)
373: return(1);
1.5 kristaps 374:
375: buf[0] = 0;
1.2 kristaps 376: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
377: return(0);
1.1 kristaps 378: if (SEC_CUSTOM != (sec = mdoc_atosec(buf)))
379: m->lastnamed = sec;
380:
381: switch ((m->lastsec = sec)) {
382: case (SEC_RETURN_VALUES):
383: /* FALLTHROUGH */
384: case (SEC_ERRORS):
385: switch (m->meta.msec) {
386: case (2):
387: /* FALLTHROUGH */
388: case (3):
389: /* FALLTHROUGH */
390: case (9):
391: break;
392: default:
1.2 kristaps 393: return(vwarn(m, WBADSEC));
1.1 kristaps 394: }
395: break;
396: default:
397: break;
398: }
399: return(1);
400: }
401:
402:
403: static int
404: post_dt(POST_ARGS)
405: {
406: struct mdoc_node *n;
407: const char *cp;
408: char *ep;
409: long lval;
410:
411: if (m->meta.title)
412: free(m->meta.title);
413: if (m->meta.vol)
414: free(m->meta.vol);
415: if (m->meta.arch)
416: free(m->meta.arch);
417:
418: m->meta.title = m->meta.vol = m->meta.arch = NULL;
419: m->meta.msec = 0;
420:
421: /* Handles: `.Dt'
422: * --> title = unknown, volume = local, msec = 0, arch = NULL
423: */
424:
425: if (NULL == (n = m->last->child)) {
1.2 kristaps 426: if (NULL == (m->meta.title = strdup("unknown")))
427: return(verr(m, EMALLOC));
428: if (NULL == (m->meta.vol = strdup("local")))
429: return(verr(m, EMALLOC));
1.1 kristaps 430: return(post_prol(m));
431: }
432:
433: /* Handles: `.Dt TITLE'
434: * --> title = TITLE, volume = local, msec = 0, arch = NULL
435: */
436:
1.2 kristaps 437: if (NULL == (m->meta.title = strdup(n->string)))
438: return(verr(m, EMALLOC));
1.1 kristaps 439:
440: if (NULL == (n = n->next)) {
1.2 kristaps 441: if (NULL == (m->meta.vol = strdup("local")))
442: return(verr(m, EMALLOC));
1.1 kristaps 443: return(post_prol(m));
444: }
445:
446: /* Handles: `.Dt TITLE SEC'
447: * --> title = TITLE, volume = SEC is msec ?
448: * format(msec) : SEC,
449: * msec = SEC is msec ? atoi(msec) : 0,
450: * arch = NULL
451: */
452:
453: cp = mdoc_a2msec(n->string);
454: if (cp) {
1.2 kristaps 455: if (NULL == (m->meta.vol = strdup(cp)))
456: return(verr(m, EMALLOC));
1.1 kristaps 457: errno = 0;
458: lval = strtol(n->string, &ep, 10);
459: if (n->string[0] != '\0' && *ep == '\0')
460: m->meta.msec = (int)lval;
1.2 kristaps 461: } else if (NULL == (m->meta.vol = strdup(n->string)))
462: return(verr(m, EMALLOC));
1.1 kristaps 463:
464: if (NULL == (n = n->next))
465: return(post_prol(m));
466:
467: /* Handles: `.Dt TITLE SEC VOL'
468: * --> title = TITLE, volume = VOL is vol ?
469: * format(VOL) :
470: * VOL is arch ? format(arch) :
471: * VOL
472: */
473:
474: cp = mdoc_a2vol(n->string);
475: if (cp) {
476: free(m->meta.vol);
1.2 kristaps 477: if (NULL == (m->meta.vol = strdup(cp)))
478: return(verr(m, EMALLOC));
1.1 kristaps 479: n = n->next;
480: } else {
481: cp = mdoc_a2arch(n->string);
482: if (NULL == cp) {
483: free(m->meta.vol);
1.2 kristaps 484: if (NULL == (m->meta.vol = strdup(n->string)))
485: return(verr(m, EMALLOC));
486: } else if (NULL == (m->meta.arch = strdup(cp)))
487: return(verr(m, EMALLOC));
1.1 kristaps 488: }
489:
490: /* Ignore any subsequent parameters... */
491:
492: return(post_prol(m));
493: }
494:
495:
496: static int
497: post_os(POST_ARGS)
498: {
499: char buf[64];
500: struct utsname utsname;
501:
502: if (m->meta.os)
503: free(m->meta.os);
1.4 kristaps 504:
505: buf[0] = 0;
1.2 kristaps 506: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
507: return(0);
1.1 kristaps 508:
509: if (0 == buf[0]) {
510: if (-1 == uname(&utsname))
1.20 kristaps 511: return(verr(m, EUTSNAME));
1.4 kristaps 512: if (strlcat(buf, utsname.sysname, 64) >= 64)
1.2 kristaps 513: return(verr(m, ETOOLONG));
514: if (strlcat(buf, " ", 64) >= 64)
515: return(verr(m, ETOOLONG));
516: if (strlcat(buf, utsname.release, 64) >= 64)
517: return(verr(m, ETOOLONG));
1.1 kristaps 518: }
519:
1.2 kristaps 520: if (NULL == (m->meta.os = strdup(buf)))
521: return(verr(m, EMALLOC));
1.1 kristaps 522:
1.13 kristaps 523: m->flags |= MDOC_PBODY;
1.1 kristaps 524: return(post_prol(m));
525: }
526:
527:
528: /*
529: * Calculate the -width for a `Bl -tag' list if it hasn't been provided.
530: * Uses the first head macro.
531: */
532: static int
533: post_bl_tagwidth(struct mdoc *m)
534: {
535: struct mdoc_node *n;
536: int sz;
537: char buf[32];
538:
539: /*
540: * Use the text width, if a text node, or the default macro
541: * width if a macro.
542: */
543:
1.11 kristaps 544: n = m->last->body->child;
545: if (n) {
1.1 kristaps 546: assert(MDOC_BLOCK == n->type);
547: assert(MDOC_It == n->tok);
548: n = n->head->child;
549: }
550:
551: sz = 10; /* Default size. */
552:
553: if (n) {
554: if (MDOC_TEXT != n->type) {
555: if (0 == (sz = (int)mdoc_macro2len(n->tok)))
1.2 kristaps 556: if ( ! vwarn(m, WNOWIDTH))
1.1 kristaps 557: return(0);
558: } else
559: sz = (int)strlen(n->string) + 1;
560: }
561:
1.2 kristaps 562: if (-1 == snprintf(buf, sizeof(buf), "%dn", sz))
563: return(verr(m, ENUMFMT));
1.1 kristaps 564:
565: /*
566: * We have to dynamically add this to the macro's argument list.
567: * We're guaranteed that a MDOC_Width doesn't already exist.
568: */
569:
570: n = m->last;
571: assert(n->args);
1.2 kristaps 572: sz = (int)(n->args->argc)++;
1.1 kristaps 573:
1.2 kristaps 574: n->args->argv = realloc(n->args->argv,
1.1 kristaps 575: n->args->argc * sizeof(struct mdoc_argv));
576:
1.2 kristaps 577: if (NULL == n->args->argv)
578: return(verr(m, EMALLOC));
579:
1.1 kristaps 580: n->args->argv[sz].arg = MDOC_Width;
581: n->args->argv[sz].line = m->last->line;
582: n->args->argv[sz].pos = m->last->pos;
583: n->args->argv[sz].sz = 1;
584: n->args->argv[sz].value = calloc(1, sizeof(char *));
1.2 kristaps 585:
1.1 kristaps 586: if (NULL == n->args->argv[sz].value)
1.2 kristaps 587: return(verr(m, EMALLOC));
588: if (NULL == (n->args->argv[sz].value[0] = strdup(buf)))
589: return(verr(m, EMALLOC));
1.1 kristaps 590:
591: return(1);
592: }
593:
594:
595: static int
596: post_bl_width(struct mdoc *m)
597: {
598: size_t width;
599: int i, tok;
600: char buf[32];
601: char *p;
602:
603: if (NULL == m->last->args)
604: return(1);
605:
606: for (i = 0; i < (int)m->last->args->argc; i++)
607: if (MDOC_Width == m->last->args->argv[i].arg)
608: break;
609:
610: if (i == (int)m->last->args->argc)
611: return(1);
612: p = m->last->args->argv[i].value[0];
613:
614: /*
615: * If the value to -width is a macro, then we re-write it to be
616: * the macro's width as set in share/tmac/mdoc/doc-common.
617: */
618:
1.2 kristaps 619: if (0 == strcmp(p, "Ds"))
1.18 kristaps 620: width = 6;
1.3 kristaps 621: else if (MDOC_MAX == (tok = mdoc_hash_find(m->htab, p)))
1.1 kristaps 622: return(1);
623: else if (0 == (width = mdoc_macro2len(tok)))
1.2 kristaps 624: return(vwarn(m, WNOWIDTH));
1.1 kristaps 625:
626: /* The value already exists: free and reallocate it. */
627:
1.2 kristaps 628: if (-1 == snprintf(buf, sizeof(buf), "%zun", width))
629: return(verr(m, ENUMFMT));
1.1 kristaps 630:
631: free(m->last->args->argv[i].value[0]);
1.2 kristaps 632: m->last->args->argv[i].value[0] = strdup(buf);
633: if (NULL == m->last->args->argv[i].value[0])
634: return(verr(m, EMALLOC));
1.1 kristaps 635:
636: return(1);
637: }
638:
639:
640: static int
1.14 kristaps 641: post_bl_head(POST_ARGS)
642: {
643: int i, c;
644: struct mdoc_node *n, *nn, *nnp;
645:
646: if (NULL == m->last->child)
647: return(1);
648:
649: n = m->last->parent;
650: assert(n->args);
651:
652: for (c = 0; c < (int)n->args->argc; c++)
653: if (MDOC_Column == n->args->argv[c].arg)
654: break;
655:
656: /* Only process -column. */
657:
658: if (c == (int)n->args->argc)
659: return(1);
660:
661: assert(0 == n->args->argv[c].sz);
662:
663: /*
664: * Accomodate for new-style groff column syntax. Shuffle the
665: * child nodes, all of which must be TEXT, as arguments for the
666: * column field. Then, delete the head children.
667: */
668:
1.17 kristaps 669: n->args->argv[c].sz = (size_t)m->last->nchild;
670: n->args->argv[c].value = malloc
671: ((size_t)m->last->nchild * sizeof(char *));
1.14 kristaps 672:
673: for (i = 0, nn = m->last->child; nn; i++) {
674: n->args->argv[c].value[i] = nn->string;
675: nn->string = NULL;
676: nnp = nn;
677: nn = nn->next;
678: mdoc_node_free(nnp);
679: }
680:
1.17 kristaps 681: m->last->nchild = 0;
1.14 kristaps 682: m->last->child = NULL;
1.17 kristaps 683:
1.14 kristaps 684: return(1);
685: }
686:
687:
688: static int
1.1 kristaps 689: post_bl(POST_ARGS)
690: {
691: int i, r, len;
692:
1.14 kristaps 693: if (MDOC_HEAD == m->last->type)
694: return(post_bl_head(m));
1.1 kristaps 695: if (MDOC_BLOCK != m->last->type)
696: return(1);
697:
698: /*
699: * These are fairly complicated, so we've broken them into two
700: * functions. post_bl_tagwidth() is called when a -tag is
701: * specified, but no -width (it must be guessed). The second
702: * when a -width is specified (macro indicators must be
703: * rewritten into real lengths).
704: */
705:
706: len = (int)(m->last->args ? m->last->args->argc : 0);
707:
708: for (r = i = 0; i < len; i++) {
709: if (MDOC_Tag == m->last->args->argv[i].arg)
710: r |= 1 << 0;
711: if (MDOC_Width == m->last->args->argv[i].arg)
712: r |= 1 << 1;
713: }
714:
715: if (r & (1 << 0) && ! (r & (1 << 1))) {
716: if ( ! post_bl_tagwidth(m))
717: return(0);
718: } else if (r & (1 << 1))
719: if ( ! post_bl_width(m))
720: return(0);
721:
722: return(1);
723: }
724:
725:
726: static int
1.10 kristaps 727: post_lk(POST_ARGS)
728: {
729: struct mdoc_node *n;
730:
731: if (m->last->child)
732: return(1);
733:
734: n = m->last;
735: m->next = MDOC_NEXT_CHILD;
736: /* FIXME: this isn't documented anywhere! */
737: if ( ! mdoc_word_alloc(m, m->last->line,
738: m->last->pos, "~"))
739: return(0);
740:
741: m->last = n;
742: m->next = MDOC_NEXT_SIBLING;
743: return(1);
744: }
745:
746:
747: static int
1.1 kristaps 748: post_ar(POST_ARGS)
749: {
750: struct mdoc_node *n;
751:
752: if (m->last->child)
753: return(1);
754:
755: n = m->last;
756: m->next = MDOC_NEXT_CHILD;
757: if ( ! mdoc_word_alloc(m, m->last->line,
758: m->last->pos, "file"))
759: return(0);
760: m->next = MDOC_NEXT_SIBLING;
761: if ( ! mdoc_word_alloc(m, m->last->line,
762: m->last->pos, "..."))
763: return(0);
764:
765: m->last = n;
766: m->next = MDOC_NEXT_SIBLING;
767: return(1);
768: }
769:
770:
771: static int
772: post_dd(POST_ARGS)
773: {
774: char buf[64];
775:
1.5 kristaps 776: buf[0] = 0;
1.2 kristaps 777: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
778: return(0);
1.1 kristaps 779:
780: if (0 == (m->meta.date = mdoc_atotime(buf))) {
1.2 kristaps 781: if ( ! vwarn(m, WBADDATE))
1.1 kristaps 782: return(0);
783: m->meta.date = time(NULL);
784: }
785:
786: return(post_prol(m));
787: }
788:
789:
790: static int
791: post_prol(POST_ARGS)
792: {
793: struct mdoc_node *n;
794:
795: /*
796: * The end document shouldn't have the prologue macros as part
797: * of the syntax tree (they encompass only meta-data).
798: */
799:
800: if (m->last->parent->child == m->last)
801: m->last->parent->child = m->last->prev;
802: if (m->last->prev)
803: m->last->prev->next = NULL;
804:
805: n = m->last;
806: assert(NULL == m->last->next);
807:
808: if (m->last->prev) {
809: m->last = m->last->prev;
810: m->next = MDOC_NEXT_SIBLING;
811: } else {
812: m->last = m->last->parent;
813: m->next = MDOC_NEXT_CHILD;
814: }
815:
816: mdoc_node_freelist(n);
817: return(1);
818: }
819:
820:
821: static int
822: pre_dl(PRE_ARGS)
823: {
824:
1.16 kristaps 825: if (MDOC_BODY == n->type)
826: m->flags |= MDOC_LITERAL;
1.1 kristaps 827: return(1);
828: }
829:
830:
831: static int
832: pre_bd(PRE_ARGS)
833: {
834: int i;
835:
836: if (MDOC_BODY != n->type)
837: return(1);
838:
1.2 kristaps 839: /* Enter literal context if `Bd -literal' or * -unfilled'. */
1.1 kristaps 840:
1.2 kristaps 841: for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
1.1 kristaps 842: if (MDOC_Literal == n->args->argv[i].arg)
843: break;
844: else if (MDOC_Unfilled == n->args->argv[i].arg)
845: break;
846:
847: if (i < (int)n->args->argc)
848: m->flags |= MDOC_LITERAL;
849:
850: return(1);
851: }
852:
853:
854: static int
855: post_display(POST_ARGS)
856: {
857:
858: if (MDOC_BODY == m->last->type)
859: m->flags &= ~MDOC_LITERAL;
860: return(1);
861: }
862:
863:
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