Annotation of src/usr.bin/mandoc/mdoc_action.c, Revision 1.12
1.12 ! schwarze 1: /* $Id: mdoc_action.c,v 1.11 2009/07/12 20:30:27 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: #define PRE_ARGS struct mdoc *m, const struct mdoc_node *n
34: #define POST_ARGS struct mdoc *m
35:
36: struct actions {
37: int (*pre)(PRE_ARGS);
38: int (*post)(POST_ARGS);
39: };
40:
41: static int pwarn(struct mdoc *, int, int, enum mwarn);
42: static int perr(struct mdoc *, int, int, enum merr);
43: static int concat(struct mdoc *, const struct mdoc_node *,
44: char *, size_t);
45:
46: static int post_ar(POST_ARGS);
47: static int post_bl(POST_ARGS);
1.6 schwarze 48: static int post_bl_head(POST_ARGS);
1.1 kristaps 49: static int post_bl_width(POST_ARGS);
50: static int post_bl_tagwidth(POST_ARGS);
51: static int post_dd(POST_ARGS);
52: static int post_display(POST_ARGS);
53: static int post_dt(POST_ARGS);
1.3 schwarze 54: static int post_lk(POST_ARGS);
1.1 kristaps 55: static int post_nm(POST_ARGS);
56: static int post_os(POST_ARGS);
57: static int post_prol(POST_ARGS);
58: static int post_sh(POST_ARGS);
59: static int post_std(POST_ARGS);
60:
61: static int pre_bd(PRE_ARGS);
62: static int pre_dl(PRE_ARGS);
63:
64: #define vwarn(m, t) pwarn((m), (m)->last->line, (m)->last->pos, (t))
65: #define verr(m, t) perr((m), (m)->last->line, (m)->last->pos, (t))
66: #define nerr(m, n, t) perr((m), (n)->line, (n)->pos, (t))
67:
68: const struct actions mdoc_actions[MDOC_MAX] = {
1.4 schwarze 69: { NULL, NULL }, /* Ap */
1.1 kristaps 70: { NULL, post_dd }, /* Dd */
71: { NULL, post_dt }, /* Dt */
72: { NULL, post_os }, /* Os */
73: { NULL, post_sh }, /* Sh */
74: { NULL, NULL }, /* Ss */
75: { NULL, NULL }, /* Pp */
76: { NULL, NULL }, /* D1 */
77: { pre_dl, post_display }, /* Dl */
78: { pre_bd, post_display }, /* Bd */
79: { NULL, NULL }, /* Ed */
80: { NULL, post_bl }, /* Bl */
81: { NULL, NULL }, /* El */
82: { NULL, NULL }, /* It */
83: { NULL, NULL }, /* Ad */
84: { NULL, NULL }, /* An */
85: { NULL, post_ar }, /* Ar */
1.9 schwarze 86: { NULL, NULL }, /* Cd */ /* FIXME: tabs are accepted! */
1.1 kristaps 87: { NULL, NULL }, /* Cm */
88: { NULL, NULL }, /* Dv */
89: { NULL, NULL }, /* Er */
90: { NULL, NULL }, /* Ev */
91: { NULL, post_std }, /* Ex */
92: { NULL, NULL }, /* Fa */
93: { NULL, NULL }, /* Fd */
94: { NULL, NULL }, /* Fl */
95: { NULL, NULL }, /* Fn */
96: { NULL, NULL }, /* Ft */
97: { NULL, NULL }, /* Ic */
98: { NULL, NULL }, /* In */
99: { NULL, NULL }, /* Li */
100: { NULL, NULL }, /* Nd */
101: { NULL, post_nm }, /* Nm */
102: { NULL, NULL }, /* Op */
103: { NULL, NULL }, /* Ot */
104: { NULL, NULL }, /* Pa */
105: { NULL, post_std }, /* Rv */
106: { NULL, NULL }, /* St */
107: { NULL, NULL }, /* Va */
108: { NULL, NULL }, /* Vt */
109: { NULL, NULL }, /* Xr */
110: { NULL, NULL }, /* %A */
111: { NULL, NULL }, /* %B */
112: { NULL, NULL }, /* %D */
113: { NULL, NULL }, /* %I */
114: { NULL, NULL }, /* %J */
115: { NULL, NULL }, /* %N */
116: { NULL, NULL }, /* %O */
117: { NULL, NULL }, /* %P */
118: { NULL, NULL }, /* %R */
119: { NULL, NULL }, /* %T */
120: { NULL, NULL }, /* %V */
121: { NULL, NULL }, /* Ac */
122: { NULL, NULL }, /* Ao */
123: { NULL, NULL }, /* Aq */
124: { NULL, NULL }, /* At */
125: { NULL, NULL }, /* Bc */
126: { NULL, NULL }, /* Bf */
127: { NULL, NULL }, /* Bo */
128: { NULL, NULL }, /* Bq */
129: { NULL, NULL }, /* Bsx */
130: { NULL, NULL }, /* Bx */
131: { NULL, NULL }, /* Db */
132: { NULL, NULL }, /* Dc */
133: { NULL, NULL }, /* Do */
134: { NULL, NULL }, /* Dq */
135: { NULL, NULL }, /* Ec */
136: { NULL, NULL }, /* Ef */
137: { NULL, NULL }, /* Em */
138: { NULL, NULL }, /* Eo */
139: { NULL, NULL }, /* Fx */
140: { NULL, NULL }, /* Ms */
141: { NULL, NULL }, /* No */
142: { NULL, NULL }, /* Ns */
143: { NULL, NULL }, /* Nx */
144: { NULL, NULL }, /* Ox */
145: { NULL, NULL }, /* Pc */
146: { NULL, NULL }, /* Pf */
147: { NULL, NULL }, /* Po */
148: { NULL, NULL }, /* Pq */
149: { NULL, NULL }, /* Qc */
150: { NULL, NULL }, /* Ql */
151: { NULL, NULL }, /* Qo */
152: { NULL, NULL }, /* Qq */
153: { NULL, NULL }, /* Re */
154: { NULL, NULL }, /* Rs */
155: { NULL, NULL }, /* Sc */
156: { NULL, NULL }, /* So */
157: { NULL, NULL }, /* Sq */
158: { NULL, NULL }, /* Sm */
159: { NULL, NULL }, /* Sx */
160: { NULL, NULL }, /* Sy */
161: { NULL, NULL }, /* Tn */
162: { NULL, NULL }, /* Ux */
163: { NULL, NULL }, /* Xc */
164: { NULL, NULL }, /* Xo */
165: { NULL, NULL }, /* Fo */
166: { NULL, NULL }, /* Fc */
167: { NULL, NULL }, /* Oo */
168: { NULL, NULL }, /* Oc */
169: { NULL, NULL }, /* Bk */
170: { NULL, NULL }, /* Ek */
171: { NULL, NULL }, /* Bt */
172: { NULL, NULL }, /* Hf */
173: { NULL, NULL }, /* Fr */
174: { NULL, NULL }, /* Ud */
175: { NULL, NULL }, /* Lb */
176: { NULL, NULL }, /* Lp */
1.3 schwarze 177: { NULL, post_lk }, /* Lk */
1.1 kristaps 178: { NULL, NULL }, /* Mt */
179: { NULL, NULL }, /* Brq */
180: { NULL, NULL }, /* Bro */
181: { NULL, NULL }, /* Brc */
182: { NULL, NULL }, /* %C */
183: { NULL, NULL }, /* Es */
184: { NULL, NULL }, /* En */
185: { NULL, NULL }, /* Dx */
186: { NULL, NULL }, /* %Q */
187: };
188:
189:
190: int
191: mdoc_action_pre(struct mdoc *m, const struct mdoc_node *n)
192: {
193:
194: switch (n->type) {
195: case (MDOC_ROOT):
196: /* FALLTHROUGH */
197: case (MDOC_TEXT):
198: return(1);
199: default:
200: break;
201: }
202:
203: if (NULL == mdoc_actions[n->tok].pre)
204: return(1);
205: return((*mdoc_actions[n->tok].pre)(m, n));
206: }
207:
208:
209: int
210: mdoc_action_post(struct mdoc *m)
211: {
212:
213: if (MDOC_ACTED & m->last->flags)
214: return(1);
215: m->last->flags |= MDOC_ACTED;
216:
217: switch (m->last->type) {
218: case (MDOC_TEXT):
219: /* FALLTHROUGH */
220: case (MDOC_ROOT):
221: return(1);
222: default:
223: break;
224: }
225:
226: if (NULL == mdoc_actions[m->last->tok].post)
227: return(1);
228: return((*mdoc_actions[m->last->tok].post)(m));
229: }
230:
231:
232: static int
233: concat(struct mdoc *m, const struct mdoc_node *n,
234: char *buf, size_t sz)
235: {
236:
237: for ( ; n; n = n->next) {
238: assert(MDOC_TEXT == n->type);
239: if (strlcat(buf, n->string, sz) >= sz)
1.12 ! schwarze 240: return(mdoc_nerr(m, n, ETOOLONG));
1.1 kristaps 241: if (NULL == n->next)
242: continue;
243: if (strlcat(buf, " ", sz) >= sz)
1.12 ! schwarze 244: return(mdoc_nerr(m, n, ETOOLONG));
1.1 kristaps 245: }
246:
247: return(1);
248: }
249:
250:
251: static int
252: perr(struct mdoc *m, int line, int pos, enum merr type)
253: {
254: char *p;
255:
256: p = NULL;
257: switch (type) {
258: case (ENUMFMT):
259: p = "bad number format";
260: break;
261: case (ETOOLONG):
262: p = "argument text too long";
263: break;
1.10 schwarze 264: case (EUTSNAME):
265: p = "utsname";
266: break;
1.1 kristaps 267: case (EMALLOC):
268: p = "memory exhausted";
269: break;
270: }
271: assert(p);
272: return(mdoc_perr(m, line, pos, p));
273: }
274:
275:
276: static int
277: pwarn(struct mdoc *m, int line, int pos, enum mwarn type)
278: {
279: char *p;
280: int c;
281:
282: p = NULL;
283: c = WARN_SYNTAX;
284: switch (type) {
285: case (WBADSEC):
286: p = "inappropriate document section in manual section";
287: c = WARN_COMPAT;
288: break;
289: case (WNOWIDTH):
290: p = "cannot determine default width";
291: break;
292: case (WBADDATE):
293: p = "malformed date syntax";
294: break;
295: }
296: assert(p);
297: return(mdoc_pwarn(m, line, pos, c, p));
298: }
299:
300:
301: static int
302: post_std(POST_ARGS)
303: {
304:
305: /*
306: * If '-std' is invoked without an argument, fill it in with our
307: * name (if it's been set).
308: */
309:
310: if (NULL == m->last->args)
311: return(1);
312: if (m->last->args->argv[0].sz)
313: return(1);
314:
315: assert(m->meta.name);
316:
317: m->last->args->argv[0].value = calloc(1, sizeof(char *));
318: if (NULL == m->last->args->argv[0].value)
1.12 ! schwarze 319: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 320:
321: m->last->args->argv[0].sz = 1;
322: m->last->args->argv[0].value[0] = strdup(m->meta.name);
323: if (NULL == m->last->args->argv[0].value[0])
1.12 ! schwarze 324: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 325:
326: return(1);
327: }
328:
329:
330: static int
331: post_nm(POST_ARGS)
332: {
333: char buf[64];
334:
335: if (m->meta.name)
336: return(1);
337:
338: buf[0] = 0;
339: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
340: return(0);
1.2 schwarze 341:
1.1 kristaps 342: if (NULL == (m->meta.name = strdup(buf)))
1.12 ! schwarze 343: return(mdoc_nerr(m, m->last, EMALLOC));
1.2 schwarze 344:
1.1 kristaps 345: return(1);
346: }
347:
348:
349: static int
350: post_sh(POST_ARGS)
351: {
352: enum mdoc_sec sec;
353: char buf[64];
354:
355: /*
356: * We keep track of the current section /and/ the "named"
357: * section, which is one of the conventional ones, in order to
358: * check ordering.
359: */
360:
361: if (MDOC_HEAD != m->last->type)
362: return(1);
363:
364: buf[0] = 0;
365: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
366: return(0);
367: if (SEC_CUSTOM != (sec = mdoc_atosec(buf)))
368: m->lastnamed = sec;
369:
370: switch ((m->lastsec = sec)) {
371: case (SEC_RETURN_VALUES):
372: /* FALLTHROUGH */
373: case (SEC_ERRORS):
374: switch (m->meta.msec) {
375: case (2):
376: /* FALLTHROUGH */
377: case (3):
378: /* FALLTHROUGH */
379: case (9):
380: break;
381: default:
382: return(vwarn(m, WBADSEC));
383: }
384: break;
385: default:
386: break;
387: }
388: return(1);
389: }
390:
391:
392: static int
393: post_dt(POST_ARGS)
394: {
395: struct mdoc_node *n;
396: const char *cp;
397: char *ep;
398: long lval;
399:
400: if (m->meta.title)
401: free(m->meta.title);
402: if (m->meta.vol)
403: free(m->meta.vol);
404: if (m->meta.arch)
405: free(m->meta.arch);
406:
407: m->meta.title = m->meta.vol = m->meta.arch = NULL;
408: m->meta.msec = 0;
409:
410: /* Handles: `.Dt'
411: * --> title = unknown, volume = local, msec = 0, arch = NULL
412: */
413:
414: if (NULL == (n = m->last->child)) {
415: if (NULL == (m->meta.title = strdup("unknown")))
1.12 ! schwarze 416: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 417: if (NULL == (m->meta.vol = strdup("local")))
1.12 ! schwarze 418: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 419: return(post_prol(m));
420: }
421:
422: /* Handles: `.Dt TITLE'
423: * --> title = TITLE, volume = local, msec = 0, arch = NULL
424: */
425:
426: if (NULL == (m->meta.title = strdup(n->string)))
1.12 ! schwarze 427: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 428:
429: if (NULL == (n = n->next)) {
430: if (NULL == (m->meta.vol = strdup("local")))
1.12 ! schwarze 431: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 432: return(post_prol(m));
433: }
434:
435: /* Handles: `.Dt TITLE SEC'
436: * --> title = TITLE, volume = SEC is msec ?
437: * format(msec) : SEC,
438: * msec = SEC is msec ? atoi(msec) : 0,
439: * arch = NULL
440: */
441:
442: cp = mdoc_a2msec(n->string);
443: if (cp) {
444: if (NULL == (m->meta.vol = strdup(cp)))
1.12 ! schwarze 445: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 446: errno = 0;
447: lval = strtol(n->string, &ep, 10);
448: if (n->string[0] != '\0' && *ep == '\0')
449: m->meta.msec = (int)lval;
450: } else if (NULL == (m->meta.vol = strdup(n->string)))
1.12 ! schwarze 451: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 452:
453: if (NULL == (n = n->next))
454: return(post_prol(m));
455:
456: /* Handles: `.Dt TITLE SEC VOL'
457: * --> title = TITLE, volume = VOL is vol ?
458: * format(VOL) :
459: * VOL is arch ? format(arch) :
460: * VOL
461: */
462:
463: cp = mdoc_a2vol(n->string);
464: if (cp) {
465: free(m->meta.vol);
466: if (NULL == (m->meta.vol = strdup(cp)))
1.12 ! schwarze 467: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 468: n = n->next;
469: } else {
470: cp = mdoc_a2arch(n->string);
471: if (NULL == cp) {
472: free(m->meta.vol);
473: if (NULL == (m->meta.vol = strdup(n->string)))
1.12 ! schwarze 474: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 475: } else if (NULL == (m->meta.arch = strdup(cp)))
1.12 ! schwarze 476: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 477: }
478:
479: /* Ignore any subsequent parameters... */
480:
481: return(post_prol(m));
482: }
483:
484:
485: static int
486: post_os(POST_ARGS)
487: {
488: char buf[64];
489: struct utsname utsname;
490:
491: if (m->meta.os)
492: free(m->meta.os);
493:
494: buf[0] = 0;
495: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
496: return(0);
497:
498: if (0 == buf[0]) {
499: if (-1 == uname(&utsname))
1.12 ! schwarze 500: return(mdoc_nerr(m, m->last, EUTSNAME));
1.1 kristaps 501: if (strlcat(buf, utsname.sysname, 64) >= 64)
1.12 ! schwarze 502: return(mdoc_nerr(m, m->last, ETOOLONG));
1.1 kristaps 503: if (strlcat(buf, " ", 64) >= 64)
1.12 ! schwarze 504: return(mdoc_nerr(m, m->last, ETOOLONG));
1.1 kristaps 505: if (strlcat(buf, utsname.release, 64) >= 64)
1.12 ! schwarze 506: return(mdoc_nerr(m, m->last, ETOOLONG));
1.1 kristaps 507: }
508:
509: if (NULL == (m->meta.os = strdup(buf)))
1.12 ! schwarze 510: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 511:
1.5 schwarze 512: m->flags |= MDOC_PBODY;
1.1 kristaps 513: return(post_prol(m));
514: }
515:
516:
517: /*
518: * Calculate the -width for a `Bl -tag' list if it hasn't been provided.
519: * Uses the first head macro.
520: */
521: static int
522: post_bl_tagwidth(struct mdoc *m)
523: {
524: struct mdoc_node *n;
525: int sz;
526: char buf[32];
527:
528: /*
529: * Use the text width, if a text node, or the default macro
530: * width if a macro.
531: */
532:
1.3 schwarze 533: n = m->last->body->child;
534: if (n) {
1.1 kristaps 535: assert(MDOC_BLOCK == n->type);
536: assert(MDOC_It == n->tok);
537: n = n->head->child;
538: }
539:
540: sz = 10; /* Default size. */
541:
542: if (n) {
543: if (MDOC_TEXT != n->type) {
544: if (0 == (sz = (int)mdoc_macro2len(n->tok)))
545: if ( ! vwarn(m, WNOWIDTH))
546: return(0);
547: } else
548: sz = (int)strlen(n->string) + 1;
549: }
550:
551: if (-1 == snprintf(buf, sizeof(buf), "%dn", sz))
1.12 ! schwarze 552: return(mdoc_nerr(m, m->last, ENUMFMT));
1.1 kristaps 553:
554: /*
555: * We have to dynamically add this to the macro's argument list.
556: * We're guaranteed that a MDOC_Width doesn't already exist.
557: */
558:
559: n = m->last;
560: assert(n->args);
561: sz = (int)(n->args->argc)++;
562:
563: n->args->argv = realloc(n->args->argv,
564: n->args->argc * sizeof(struct mdoc_argv));
565:
566: if (NULL == n->args->argv)
1.12 ! schwarze 567: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 568:
569: n->args->argv[sz].arg = MDOC_Width;
570: n->args->argv[sz].line = m->last->line;
571: n->args->argv[sz].pos = m->last->pos;
572: n->args->argv[sz].sz = 1;
573: n->args->argv[sz].value = calloc(1, sizeof(char *));
574:
575: if (NULL == n->args->argv[sz].value)
1.12 ! schwarze 576: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 577: if (NULL == (n->args->argv[sz].value[0] = strdup(buf)))
1.12 ! schwarze 578: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 579:
580: return(1);
581: }
582:
583:
584: static int
585: post_bl_width(struct mdoc *m)
586: {
587: size_t width;
588: int i, tok;
589: char buf[32];
590: char *p;
591:
592: if (NULL == m->last->args)
593: return(1);
594:
595: for (i = 0; i < (int)m->last->args->argc; i++)
596: if (MDOC_Width == m->last->args->argv[i].arg)
597: break;
598:
599: if (i == (int)m->last->args->argc)
600: return(1);
601: p = m->last->args->argv[i].value[0];
602:
603: /*
604: * If the value to -width is a macro, then we re-write it to be
605: * the macro's width as set in share/tmac/mdoc/doc-common.
606: */
607:
608: if (0 == strcmp(p, "Ds"))
1.9 schwarze 609: width = 6;
1.1 kristaps 610: else if (MDOC_MAX == (tok = mdoc_hash_find(m->htab, p)))
611: return(1);
612: else if (0 == (width = mdoc_macro2len(tok)))
613: return(vwarn(m, WNOWIDTH));
614:
615: /* The value already exists: free and reallocate it. */
616:
617: if (-1 == snprintf(buf, sizeof(buf), "%zun", width))
1.12 ! schwarze 618: return(mdoc_nerr(m, m->last, ENUMFMT));
1.1 kristaps 619:
620: free(m->last->args->argv[i].value[0]);
621: m->last->args->argv[i].value[0] = strdup(buf);
622: if (NULL == m->last->args->argv[i].value[0])
1.12 ! schwarze 623: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 624:
625: return(1);
626: }
627:
628:
629: static int
1.6 schwarze 630: post_bl_head(POST_ARGS)
631: {
632: int i, c;
633: struct mdoc_node *n, *nn, *nnp;
634:
635: if (NULL == m->last->child)
636: return(1);
637:
638: n = m->last->parent;
639: assert(n->args);
640:
641: for (c = 0; c < (int)n->args->argc; c++)
642: if (MDOC_Column == n->args->argv[c].arg)
643: break;
644:
645: /* Only process -column. */
646:
647: if (c == (int)n->args->argc)
648: return(1);
649:
650: assert(0 == n->args->argv[c].sz);
651:
652: /*
653: * Accomodate for new-style groff column syntax. Shuffle the
654: * child nodes, all of which must be TEXT, as arguments for the
655: * column field. Then, delete the head children.
656: */
657:
1.8 schwarze 658: n->args->argv[c].sz = (size_t)m->last->nchild;
659: n->args->argv[c].value = malloc
660: ((size_t)m->last->nchild * sizeof(char *));
1.6 schwarze 661:
662: for (i = 0, nn = m->last->child; nn; i++) {
663: n->args->argv[c].value[i] = nn->string;
664: nn->string = NULL;
665: nnp = nn;
666: nn = nn->next;
667: mdoc_node_free(nnp);
668: }
669:
1.8 schwarze 670: m->last->nchild = 0;
1.6 schwarze 671: m->last->child = NULL;
1.8 schwarze 672:
1.6 schwarze 673: return(1);
674: }
675:
676:
677: static int
1.1 kristaps 678: post_bl(POST_ARGS)
679: {
680: int i, r, len;
681:
1.6 schwarze 682: if (MDOC_HEAD == m->last->type)
683: return(post_bl_head(m));
1.1 kristaps 684: if (MDOC_BLOCK != m->last->type)
685: return(1);
686:
687: /*
688: * These are fairly complicated, so we've broken them into two
689: * functions. post_bl_tagwidth() is called when a -tag is
690: * specified, but no -width (it must be guessed). The second
691: * when a -width is specified (macro indicators must be
692: * rewritten into real lengths).
693: */
694:
695: len = (int)(m->last->args ? m->last->args->argc : 0);
696:
697: for (r = i = 0; i < len; i++) {
698: if (MDOC_Tag == m->last->args->argv[i].arg)
699: r |= 1 << 0;
700: if (MDOC_Width == m->last->args->argv[i].arg)
701: r |= 1 << 1;
702: }
703:
704: if (r & (1 << 0) && ! (r & (1 << 1))) {
705: if ( ! post_bl_tagwidth(m))
706: return(0);
707: } else if (r & (1 << 1))
708: if ( ! post_bl_width(m))
709: return(0);
710:
1.3 schwarze 711: return(1);
712: }
713:
714:
715: static int
716: post_lk(POST_ARGS)
717: {
718: struct mdoc_node *n;
719:
720: if (m->last->child)
721: return(1);
722:
723: n = m->last;
724: m->next = MDOC_NEXT_CHILD;
725: /* FIXME: this isn't documented anywhere! */
726: if ( ! mdoc_word_alloc(m, m->last->line,
727: m->last->pos, "~"))
728: return(0);
729:
730: m->last = n;
731: m->next = MDOC_NEXT_SIBLING;
1.1 kristaps 732: return(1);
733: }
734:
735:
736: static int
737: post_ar(POST_ARGS)
738: {
739: struct mdoc_node *n;
740:
741: if (m->last->child)
742: return(1);
743:
744: n = m->last;
745: m->next = MDOC_NEXT_CHILD;
746: if ( ! mdoc_word_alloc(m, m->last->line,
747: m->last->pos, "file"))
748: return(0);
749: m->next = MDOC_NEXT_SIBLING;
750: if ( ! mdoc_word_alloc(m, m->last->line,
751: m->last->pos, "..."))
752: return(0);
753:
754: m->last = n;
755: m->next = MDOC_NEXT_SIBLING;
756: return(1);
757: }
758:
759:
760: static int
761: post_dd(POST_ARGS)
762: {
763: char buf[64];
764:
765: buf[0] = 0;
766: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
767: return(0);
768:
769: if (0 == (m->meta.date = mdoc_atotime(buf))) {
770: if ( ! vwarn(m, WBADDATE))
771: return(0);
772: m->meta.date = time(NULL);
773: }
774:
775: return(post_prol(m));
776: }
777:
778:
779: static int
780: post_prol(POST_ARGS)
781: {
782: struct mdoc_node *n;
783:
784: /*
785: * The end document shouldn't have the prologue macros as part
786: * of the syntax tree (they encompass only meta-data).
787: */
788:
789: if (m->last->parent->child == m->last)
790: m->last->parent->child = m->last->prev;
791: if (m->last->prev)
792: m->last->prev->next = NULL;
793:
794: n = m->last;
795: assert(NULL == m->last->next);
796:
797: if (m->last->prev) {
798: m->last = m->last->prev;
799: m->next = MDOC_NEXT_SIBLING;
800: } else {
801: m->last = m->last->parent;
802: m->next = MDOC_NEXT_CHILD;
803: }
804:
805: mdoc_node_freelist(n);
806: return(1);
807: }
808:
809:
810: static int
811: pre_dl(PRE_ARGS)
812: {
813:
1.7 schwarze 814: if (MDOC_BODY == n->type)
815: m->flags |= MDOC_LITERAL;
1.1 kristaps 816: return(1);
817: }
818:
819:
820: static int
821: pre_bd(PRE_ARGS)
822: {
823: int i;
824:
825: if (MDOC_BODY != n->type)
826: return(1);
827:
828: /* Enter literal context if `Bd -literal' or * -unfilled'. */
829:
830: for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
831: if (MDOC_Literal == n->args->argv[i].arg)
832: break;
833: else if (MDOC_Unfilled == n->args->argv[i].arg)
834: break;
835:
836: if (i < (int)n->args->argc)
837: m->flags |= MDOC_LITERAL;
838:
839: return(1);
840: }
841:
842:
843: static int
844: post_display(POST_ARGS)
845: {
846:
847: if (MDOC_BODY == m->last->type)
848: m->flags &= ~MDOC_LITERAL;
849: return(1);
850: }
851:
852:
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