Annotation of mandoc/mdoc_action.c, Revision 1.17
1.17 ! kristaps 1: /* $Id: mdoc_action.c,v 1.16 2009/06/17 14:14:51 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);
1.14 kristaps 54: static int post_bl_head(POST_ARGS);
1.1 kristaps 55: static int post_bl_width(POST_ARGS);
56: static int post_bl_tagwidth(POST_ARGS);
57: static int post_dd(POST_ARGS);
58: static int post_display(POST_ARGS);
59: static int post_dt(POST_ARGS);
1.10 kristaps 60: static int post_lk(POST_ARGS);
1.1 kristaps 61: static int post_nm(POST_ARGS);
62: static int post_os(POST_ARGS);
63: static int post_prol(POST_ARGS);
64: static int post_sh(POST_ARGS);
65: static int post_std(POST_ARGS);
66:
67: static int pre_bd(PRE_ARGS);
68: static int pre_dl(PRE_ARGS);
69:
1.2 kristaps 70: #define vwarn(m, t) pwarn((m), (m)->last->line, (m)->last->pos, (t))
71: #define verr(m, t) perr((m), (m)->last->line, (m)->last->pos, (t))
72: #define nerr(m, n, t) perr((m), (n)->line, (n)->pos, (t))
1.1 kristaps 73:
74: const struct actions mdoc_actions[MDOC_MAX] = {
1.12 kristaps 75: { NULL, NULL }, /* Ap */
1.1 kristaps 76: { NULL, post_dd }, /* Dd */
77: { NULL, post_dt }, /* Dt */
78: { NULL, post_os }, /* Os */
79: { NULL, post_sh }, /* Sh */
80: { NULL, NULL }, /* Ss */
81: { NULL, NULL }, /* Pp */
82: { NULL, NULL }, /* D1 */
83: { pre_dl, post_display }, /* Dl */
84: { pre_bd, post_display }, /* Bd */
85: { NULL, NULL }, /* Ed */
86: { NULL, post_bl }, /* Bl */
87: { NULL, NULL }, /* El */
88: { NULL, NULL }, /* It */
89: { NULL, NULL }, /* Ad */
90: { NULL, NULL }, /* An */
91: { NULL, post_ar }, /* Ar */
92: { NULL, NULL }, /* Cd */
93: { NULL, NULL }, /* Cm */
94: { NULL, NULL }, /* Dv */
95: { NULL, NULL }, /* Er */
96: { NULL, NULL }, /* Ev */
97: { NULL, post_std }, /* Ex */
98: { NULL, NULL }, /* Fa */
99: { NULL, NULL }, /* Fd */
100: { NULL, NULL }, /* Fl */
101: { NULL, NULL }, /* Fn */
102: { NULL, NULL }, /* Ft */
103: { NULL, NULL }, /* Ic */
104: { NULL, NULL }, /* In */
105: { NULL, NULL }, /* Li */
106: { NULL, NULL }, /* Nd */
107: { NULL, post_nm }, /* Nm */
108: { NULL, NULL }, /* Op */
109: { NULL, NULL }, /* Ot */
110: { NULL, NULL }, /* Pa */
111: { NULL, post_std }, /* Rv */
112: { NULL, NULL }, /* St */
113: { NULL, NULL }, /* Va */
114: { NULL, NULL }, /* Vt */
115: { NULL, NULL }, /* Xr */
116: { NULL, NULL }, /* %A */
117: { NULL, NULL }, /* %B */
118: { NULL, NULL }, /* %D */
119: { NULL, NULL }, /* %I */
120: { NULL, NULL }, /* %J */
121: { NULL, NULL }, /* %N */
122: { NULL, NULL }, /* %O */
123: { NULL, NULL }, /* %P */
124: { NULL, NULL }, /* %R */
125: { NULL, NULL }, /* %T */
126: { NULL, NULL }, /* %V */
127: { NULL, NULL }, /* Ac */
128: { NULL, NULL }, /* Ao */
129: { NULL, NULL }, /* Aq */
130: { NULL, NULL }, /* At */
131: { NULL, NULL }, /* Bc */
132: { NULL, NULL }, /* Bf */
133: { NULL, NULL }, /* Bo */
134: { NULL, NULL }, /* Bq */
135: { NULL, NULL }, /* Bsx */
136: { NULL, NULL }, /* Bx */
137: { NULL, NULL }, /* Db */
138: { NULL, NULL }, /* Dc */
139: { NULL, NULL }, /* Do */
140: { NULL, NULL }, /* Dq */
141: { NULL, NULL }, /* Ec */
142: { NULL, NULL }, /* Ef */
143: { NULL, NULL }, /* Em */
144: { NULL, NULL }, /* Eo */
145: { NULL, NULL }, /* Fx */
146: { NULL, NULL }, /* Ms */
147: { NULL, NULL }, /* No */
148: { NULL, NULL }, /* Ns */
149: { NULL, NULL }, /* Nx */
150: { NULL, NULL }, /* Ox */
151: { NULL, NULL }, /* Pc */
152: { NULL, NULL }, /* Pf */
153: { NULL, NULL }, /* Po */
154: { NULL, NULL }, /* Pq */
155: { NULL, NULL }, /* Qc */
156: { NULL, NULL }, /* Ql */
157: { NULL, NULL }, /* Qo */
158: { NULL, NULL }, /* Qq */
159: { NULL, NULL }, /* Re */
160: { NULL, NULL }, /* Rs */
161: { NULL, NULL }, /* Sc */
162: { NULL, NULL }, /* So */
163: { NULL, NULL }, /* Sq */
164: { NULL, NULL }, /* Sm */
165: { NULL, NULL }, /* Sx */
166: { NULL, NULL }, /* Sy */
167: { NULL, NULL }, /* Tn */
168: { NULL, NULL }, /* Ux */
169: { NULL, NULL }, /* Xc */
170: { NULL, NULL }, /* Xo */
171: { NULL, NULL }, /* Fo */
172: { NULL, NULL }, /* Fc */
173: { NULL, NULL }, /* Oo */
174: { NULL, NULL }, /* Oc */
175: { NULL, NULL }, /* Bk */
176: { NULL, NULL }, /* Ek */
177: { NULL, NULL }, /* Bt */
178: { NULL, NULL }, /* Hf */
179: { NULL, NULL }, /* Fr */
180: { NULL, NULL }, /* Ud */
181: { NULL, NULL }, /* Lb */
182: { NULL, NULL }, /* Lp */
1.10 kristaps 183: { NULL, post_lk }, /* Lk */
1.1 kristaps 184: { NULL, NULL }, /* Mt */
185: { NULL, NULL }, /* Brq */
186: { NULL, NULL }, /* Bro */
187: { NULL, NULL }, /* Brc */
188: { NULL, NULL }, /* %C */
189: { NULL, NULL }, /* Es */
190: { NULL, NULL }, /* En */
191: { NULL, NULL }, /* Dx */
192: { NULL, NULL }, /* %Q */
193: };
194:
195:
1.2 kristaps 196: #ifdef __linux__
197: extern size_t strlcat(char *, const char *, size_t);
198: #endif
199:
200:
1.1 kristaps 201: int
202: mdoc_action_pre(struct mdoc *m, const struct mdoc_node *n)
203: {
204:
205: switch (n->type) {
206: case (MDOC_ROOT):
1.2 kristaps 207: /* FALLTHROUGH */
1.1 kristaps 208: case (MDOC_TEXT):
1.2 kristaps 209: return(1);
210: default:
1.1 kristaps 211: break;
212: }
1.2 kristaps 213:
1.6 kristaps 214: if (NULL == mdoc_actions[n->tok].pre)
1.2 kristaps 215: return(1);
1.6 kristaps 216: return((*mdoc_actions[n->tok].pre)(m, n));
1.1 kristaps 217: }
218:
219:
220: int
221: mdoc_action_post(struct mdoc *m)
222: {
223:
224: if (MDOC_ACTED & m->last->flags)
225: return(1);
226: m->last->flags |= MDOC_ACTED;
227:
228: switch (m->last->type) {
229: case (MDOC_TEXT):
1.2 kristaps 230: /* FALLTHROUGH */
1.1 kristaps 231: case (MDOC_ROOT):
1.2 kristaps 232: return(1);
233: default:
1.1 kristaps 234: break;
235: }
1.2 kristaps 236:
237: if (NULL == mdoc_actions[m->last->tok].post)
238: return(1);
239: return((*mdoc_actions[m->last->tok].post)(m));
240: }
241:
242:
243: static int
244: concat(struct mdoc *m, const struct mdoc_node *n,
245: char *buf, size_t sz)
246: {
247:
248: for ( ; n; n = n->next) {
249: assert(MDOC_TEXT == n->type);
250: if (strlcat(buf, n->string, sz) >= sz)
251: return(nerr(m, n, ETOOLONG));
252: if (NULL == n->next)
253: continue;
254: if (strlcat(buf, " ", sz) >= sz)
255: return(nerr(m, n, ETOOLONG));
256: }
257:
1.1 kristaps 258: return(1);
259: }
260:
261:
262: static int
1.2 kristaps 263: perr(struct mdoc *m, int line, int pos, enum merr type)
264: {
265: char *p;
266:
267: p = NULL;
268: switch (type) {
269: case (ENUMFMT):
270: p = "bad number format";
271: break;
272: case (ETOOLONG):
273: p = "argument text too long";
274: break;
275: case (EMALLOC):
276: p = "memory exhausted";
277: break;
278: }
279: assert(p);
280: return(mdoc_perr(m, line, pos, p));
281: }
282:
283:
284: static int
1.1 kristaps 285: pwarn(struct mdoc *m, int line, int pos, enum mwarn type)
286: {
287: char *p;
288: int c;
289:
290: p = NULL;
291: c = WARN_SYNTAX;
292: switch (type) {
293: case (WBADSEC):
294: p = "inappropriate document section in manual section";
295: c = WARN_COMPAT;
296: break;
297: case (WNOWIDTH):
298: p = "cannot determine default width";
299: break;
300: case (WBADDATE):
301: p = "malformed date syntax";
302: break;
303: }
304: assert(p);
305: return(mdoc_pwarn(m, line, pos, c, p));
306: }
307:
308:
309: static int
310: post_std(POST_ARGS)
311: {
312:
313: /*
314: * If '-std' is invoked without an argument, fill it in with our
315: * name (if it's been set).
316: */
317:
318: if (NULL == m->last->args)
319: return(1);
320: if (m->last->args->argv[0].sz)
321: return(1);
322:
323: assert(m->meta.name);
324:
325: m->last->args->argv[0].value = calloc(1, sizeof(char *));
326: if (NULL == m->last->args->argv[0].value)
1.2 kristaps 327: return(verr(m, EMALLOC));
1.1 kristaps 328:
329: m->last->args->argv[0].sz = 1;
1.2 kristaps 330: m->last->args->argv[0].value[0] = strdup(m->meta.name);
331: if (NULL == m->last->args->argv[0].value[0])
332: return(verr(m, EMALLOC));
333:
1.1 kristaps 334: return(1);
335: }
336:
337:
338: static int
339: post_nm(POST_ARGS)
340: {
341: char buf[64];
342:
343: if (m->meta.name)
344: return(1);
1.5 kristaps 345:
346: buf[0] = 0;
1.2 kristaps 347: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
348: return(0);
1.6 kristaps 349:
1.2 kristaps 350: if (NULL == (m->meta.name = strdup(buf)))
351: return(verr(m, EMALLOC));
1.1 kristaps 352:
353: return(1);
354: }
355:
356:
357: static int
358: post_sh(POST_ARGS)
359: {
360: enum mdoc_sec sec;
361: char buf[64];
362:
363: /*
364: * We keep track of the current section /and/ the "named"
365: * section, which is one of the conventional ones, in order to
366: * check ordering.
367: */
368:
369: if (MDOC_HEAD != m->last->type)
370: return(1);
1.5 kristaps 371:
372: buf[0] = 0;
1.2 kristaps 373: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
374: return(0);
1.1 kristaps 375: if (SEC_CUSTOM != (sec = mdoc_atosec(buf)))
376: m->lastnamed = sec;
377:
378: switch ((m->lastsec = sec)) {
379: case (SEC_RETURN_VALUES):
380: /* FALLTHROUGH */
381: case (SEC_ERRORS):
382: switch (m->meta.msec) {
383: case (2):
384: /* FALLTHROUGH */
385: case (3):
386: /* FALLTHROUGH */
387: case (9):
388: break;
389: default:
1.2 kristaps 390: return(vwarn(m, WBADSEC));
1.1 kristaps 391: }
392: break;
393: default:
394: break;
395: }
396: return(1);
397: }
398:
399:
400: static int
401: post_dt(POST_ARGS)
402: {
403: struct mdoc_node *n;
404: const char *cp;
405: char *ep;
406: long lval;
407:
408: if (m->meta.title)
409: free(m->meta.title);
410: if (m->meta.vol)
411: free(m->meta.vol);
412: if (m->meta.arch)
413: free(m->meta.arch);
414:
415: m->meta.title = m->meta.vol = m->meta.arch = NULL;
416: m->meta.msec = 0;
417:
418: /* Handles: `.Dt'
419: * --> title = unknown, volume = local, msec = 0, arch = NULL
420: */
421:
422: if (NULL == (n = m->last->child)) {
1.2 kristaps 423: if (NULL == (m->meta.title = strdup("unknown")))
424: return(verr(m, EMALLOC));
425: if (NULL == (m->meta.vol = strdup("local")))
426: return(verr(m, EMALLOC));
1.1 kristaps 427: return(post_prol(m));
428: }
429:
430: /* Handles: `.Dt TITLE'
431: * --> title = TITLE, volume = local, msec = 0, arch = NULL
432: */
433:
1.2 kristaps 434: if (NULL == (m->meta.title = strdup(n->string)))
435: return(verr(m, EMALLOC));
1.1 kristaps 436:
437: if (NULL == (n = n->next)) {
1.2 kristaps 438: if (NULL == (m->meta.vol = strdup("local")))
439: return(verr(m, EMALLOC));
1.1 kristaps 440: return(post_prol(m));
441: }
442:
443: /* Handles: `.Dt TITLE SEC'
444: * --> title = TITLE, volume = SEC is msec ?
445: * format(msec) : SEC,
446: * msec = SEC is msec ? atoi(msec) : 0,
447: * arch = NULL
448: */
449:
450: cp = mdoc_a2msec(n->string);
451: if (cp) {
1.2 kristaps 452: if (NULL == (m->meta.vol = strdup(cp)))
453: return(verr(m, EMALLOC));
1.1 kristaps 454: errno = 0;
455: lval = strtol(n->string, &ep, 10);
456: if (n->string[0] != '\0' && *ep == '\0')
457: m->meta.msec = (int)lval;
1.2 kristaps 458: } else if (NULL == (m->meta.vol = strdup(n->string)))
459: return(verr(m, EMALLOC));
1.1 kristaps 460:
461: if (NULL == (n = n->next))
462: return(post_prol(m));
463:
464: /* Handles: `.Dt TITLE SEC VOL'
465: * --> title = TITLE, volume = VOL is vol ?
466: * format(VOL) :
467: * VOL is arch ? format(arch) :
468: * VOL
469: */
470:
471: cp = mdoc_a2vol(n->string);
472: if (cp) {
473: free(m->meta.vol);
1.2 kristaps 474: if (NULL == (m->meta.vol = strdup(cp)))
475: return(verr(m, EMALLOC));
1.1 kristaps 476: n = n->next;
477: } else {
478: cp = mdoc_a2arch(n->string);
479: if (NULL == cp) {
480: free(m->meta.vol);
1.2 kristaps 481: if (NULL == (m->meta.vol = strdup(n->string)))
482: return(verr(m, EMALLOC));
483: } else if (NULL == (m->meta.arch = strdup(cp)))
484: return(verr(m, EMALLOC));
1.1 kristaps 485: }
486:
487: /* Ignore any subsequent parameters... */
488:
489: return(post_prol(m));
490: }
491:
492:
493: static int
494: post_os(POST_ARGS)
495: {
496: char buf[64];
497: struct utsname utsname;
498:
499: if (m->meta.os)
500: free(m->meta.os);
1.4 kristaps 501:
502: buf[0] = 0;
1.2 kristaps 503: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
504: return(0);
1.1 kristaps 505:
506: if (0 == buf[0]) {
507: if (-1 == uname(&utsname))
508: return(mdoc_err(m, "utsname"));
1.4 kristaps 509: if (strlcat(buf, utsname.sysname, 64) >= 64)
1.2 kristaps 510: return(verr(m, ETOOLONG));
511: if (strlcat(buf, " ", 64) >= 64)
512: return(verr(m, ETOOLONG));
513: if (strlcat(buf, utsname.release, 64) >= 64)
514: return(verr(m, ETOOLONG));
1.1 kristaps 515: }
516:
1.2 kristaps 517: if (NULL == (m->meta.os = strdup(buf)))
518: return(verr(m, EMALLOC));
1.1 kristaps 519:
1.13 kristaps 520: m->flags |= MDOC_PBODY;
1.1 kristaps 521: return(post_prol(m));
522: }
523:
524:
525: /*
526: * Calculate the -width for a `Bl -tag' list if it hasn't been provided.
527: * Uses the first head macro.
528: */
529: static int
530: post_bl_tagwidth(struct mdoc *m)
531: {
532: struct mdoc_node *n;
533: int sz;
534: char buf[32];
535:
536: /*
537: * Use the text width, if a text node, or the default macro
538: * width if a macro.
539: */
540:
1.11 kristaps 541: n = m->last->body->child;
542: if (n) {
1.1 kristaps 543: assert(MDOC_BLOCK == n->type);
544: assert(MDOC_It == n->tok);
545: n = n->head->child;
546: }
547:
548: sz = 10; /* Default size. */
549:
550: if (n) {
551: if (MDOC_TEXT != n->type) {
552: if (0 == (sz = (int)mdoc_macro2len(n->tok)))
1.2 kristaps 553: if ( ! vwarn(m, WNOWIDTH))
1.1 kristaps 554: return(0);
555: } else
556: sz = (int)strlen(n->string) + 1;
557: }
558:
1.2 kristaps 559: if (-1 == snprintf(buf, sizeof(buf), "%dn", sz))
560: return(verr(m, ENUMFMT));
1.1 kristaps 561:
562: /*
563: * We have to dynamically add this to the macro's argument list.
564: * We're guaranteed that a MDOC_Width doesn't already exist.
565: */
566:
567: n = m->last;
568: assert(n->args);
1.2 kristaps 569: sz = (int)(n->args->argc)++;
1.1 kristaps 570:
1.2 kristaps 571: n->args->argv = realloc(n->args->argv,
1.1 kristaps 572: n->args->argc * sizeof(struct mdoc_argv));
573:
1.2 kristaps 574: if (NULL == n->args->argv)
575: return(verr(m, EMALLOC));
576:
1.1 kristaps 577: n->args->argv[sz].arg = MDOC_Width;
578: n->args->argv[sz].line = m->last->line;
579: n->args->argv[sz].pos = m->last->pos;
580: n->args->argv[sz].sz = 1;
581: n->args->argv[sz].value = calloc(1, sizeof(char *));
1.2 kristaps 582:
1.1 kristaps 583: if (NULL == n->args->argv[sz].value)
1.2 kristaps 584: return(verr(m, EMALLOC));
585: if (NULL == (n->args->argv[sz].value[0] = strdup(buf)))
586: return(verr(m, EMALLOC));
1.1 kristaps 587:
588: return(1);
589: }
590:
591:
592: static int
593: post_bl_width(struct mdoc *m)
594: {
595: size_t width;
596: int i, tok;
597: char buf[32];
598: char *p;
599:
600: if (NULL == m->last->args)
601: return(1);
602:
603: for (i = 0; i < (int)m->last->args->argc; i++)
604: if (MDOC_Width == m->last->args->argv[i].arg)
605: break;
606:
607: if (i == (int)m->last->args->argc)
608: return(1);
609: p = m->last->args->argv[i].value[0];
610:
611: /*
612: * If the value to -width is a macro, then we re-write it to be
613: * the macro's width as set in share/tmac/mdoc/doc-common.
614: */
615:
1.2 kristaps 616: if (0 == strcmp(p, "Ds"))
1.1 kristaps 617: width = 8;
1.3 kristaps 618: else if (MDOC_MAX == (tok = mdoc_hash_find(m->htab, p)))
1.1 kristaps 619: return(1);
620: else if (0 == (width = mdoc_macro2len(tok)))
1.2 kristaps 621: return(vwarn(m, WNOWIDTH));
1.1 kristaps 622:
623: /* The value already exists: free and reallocate it. */
624:
1.2 kristaps 625: if (-1 == snprintf(buf, sizeof(buf), "%zun", width))
626: return(verr(m, ENUMFMT));
1.1 kristaps 627:
628: free(m->last->args->argv[i].value[0]);
1.2 kristaps 629: m->last->args->argv[i].value[0] = strdup(buf);
630: if (NULL == m->last->args->argv[i].value[0])
631: return(verr(m, EMALLOC));
1.1 kristaps 632:
633: return(1);
634: }
635:
636:
637: static int
1.14 kristaps 638: post_bl_head(POST_ARGS)
639: {
640: int i, c;
641: struct mdoc_node *n, *nn, *nnp;
642:
643: if (NULL == m->last->child)
644: return(1);
645:
646: n = m->last->parent;
647: assert(n->args);
648:
649: for (c = 0; c < (int)n->args->argc; c++)
650: if (MDOC_Column == n->args->argv[c].arg)
651: break;
652:
653: /* Only process -column. */
654:
655: if (c == (int)n->args->argc)
656: return(1);
657:
658: assert(0 == n->args->argv[c].sz);
659:
660: /*
661: * Accomodate for new-style groff column syntax. Shuffle the
662: * child nodes, all of which must be TEXT, as arguments for the
663: * column field. Then, delete the head children.
664: */
665:
1.17 ! kristaps 666: n->args->argv[c].sz = (size_t)m->last->nchild;
! 667: n->args->argv[c].value = malloc
! 668: ((size_t)m->last->nchild * sizeof(char *));
1.14 kristaps 669:
670: for (i = 0, nn = m->last->child; nn; i++) {
671: n->args->argv[c].value[i] = nn->string;
672: nn->string = NULL;
673: nnp = nn;
674: nn = nn->next;
675: mdoc_node_free(nnp);
676: }
677:
1.17 ! kristaps 678: m->last->nchild = 0;
1.14 kristaps 679: m->last->child = NULL;
1.17 ! kristaps 680:
1.14 kristaps 681: return(1);
682: }
683:
684:
685: static int
1.1 kristaps 686: post_bl(POST_ARGS)
687: {
688: int i, r, len;
689:
1.14 kristaps 690: if (MDOC_HEAD == m->last->type)
691: return(post_bl_head(m));
1.1 kristaps 692: if (MDOC_BLOCK != m->last->type)
693: return(1);
694:
695: /*
696: * These are fairly complicated, so we've broken them into two
697: * functions. post_bl_tagwidth() is called when a -tag is
698: * specified, but no -width (it must be guessed). The second
699: * when a -width is specified (macro indicators must be
700: * rewritten into real lengths).
701: */
702:
703: len = (int)(m->last->args ? m->last->args->argc : 0);
704:
705: for (r = i = 0; i < len; i++) {
706: if (MDOC_Tag == m->last->args->argv[i].arg)
707: r |= 1 << 0;
708: if (MDOC_Width == m->last->args->argv[i].arg)
709: r |= 1 << 1;
710: }
711:
712: if (r & (1 << 0) && ! (r & (1 << 1))) {
713: if ( ! post_bl_tagwidth(m))
714: return(0);
715: } else if (r & (1 << 1))
716: if ( ! post_bl_width(m))
717: return(0);
718:
719: return(1);
720: }
721:
722:
723: static int
1.10 kristaps 724: post_lk(POST_ARGS)
725: {
726: struct mdoc_node *n;
727:
728: if (m->last->child)
729: return(1);
730:
731: n = m->last;
732: m->next = MDOC_NEXT_CHILD;
733: /* FIXME: this isn't documented anywhere! */
734: if ( ! mdoc_word_alloc(m, m->last->line,
735: m->last->pos, "~"))
736: return(0);
737:
738: m->last = n;
739: m->next = MDOC_NEXT_SIBLING;
740: return(1);
741: }
742:
743:
744: static int
1.1 kristaps 745: post_ar(POST_ARGS)
746: {
747: struct mdoc_node *n;
748:
749: if (m->last->child)
750: return(1);
751:
752: n = m->last;
753: m->next = MDOC_NEXT_CHILD;
754: if ( ! mdoc_word_alloc(m, m->last->line,
755: m->last->pos, "file"))
756: return(0);
757: m->next = MDOC_NEXT_SIBLING;
758: if ( ! mdoc_word_alloc(m, m->last->line,
759: m->last->pos, "..."))
760: return(0);
761:
762: m->last = n;
763: m->next = MDOC_NEXT_SIBLING;
764: return(1);
765: }
766:
767:
768: static int
769: post_dd(POST_ARGS)
770: {
771: char buf[64];
772:
1.5 kristaps 773: buf[0] = 0;
1.2 kristaps 774: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
775: return(0);
1.1 kristaps 776:
777: if (0 == (m->meta.date = mdoc_atotime(buf))) {
1.2 kristaps 778: if ( ! vwarn(m, WBADDATE))
1.1 kristaps 779: return(0);
780: m->meta.date = time(NULL);
781: }
782:
783: return(post_prol(m));
784: }
785:
786:
787: static int
788: post_prol(POST_ARGS)
789: {
790: struct mdoc_node *n;
791:
792: /*
793: * The end document shouldn't have the prologue macros as part
794: * of the syntax tree (they encompass only meta-data).
795: */
796:
797: if (m->last->parent->child == m->last)
798: m->last->parent->child = m->last->prev;
799: if (m->last->prev)
800: m->last->prev->next = NULL;
801:
802: n = m->last;
803: assert(NULL == m->last->next);
804:
805: if (m->last->prev) {
806: m->last = m->last->prev;
807: m->next = MDOC_NEXT_SIBLING;
808: } else {
809: m->last = m->last->parent;
810: m->next = MDOC_NEXT_CHILD;
811: }
812:
813: mdoc_node_freelist(n);
814: return(1);
815: }
816:
817:
818: static int
819: pre_dl(PRE_ARGS)
820: {
821:
1.16 kristaps 822: if (MDOC_BODY == n->type)
823: m->flags |= MDOC_LITERAL;
1.1 kristaps 824: return(1);
825: }
826:
827:
828: static int
829: pre_bd(PRE_ARGS)
830: {
831: int i;
832:
833: if (MDOC_BODY != n->type)
834: return(1);
835:
1.2 kristaps 836: /* Enter literal context if `Bd -literal' or * -unfilled'. */
1.1 kristaps 837:
1.2 kristaps 838: for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
1.1 kristaps 839: if (MDOC_Literal == n->args->argv[i].arg)
840: break;
841: else if (MDOC_Unfilled == n->args->argv[i].arg)
842: break;
843:
844: if (i < (int)n->args->argc)
845: m->flags |= MDOC_LITERAL;
846:
847: return(1);
848: }
849:
850:
851: static int
852: post_display(POST_ARGS)
853: {
854:
855: if (MDOC_BODY == m->last->type)
856: m->flags &= ~MDOC_LITERAL;
857: return(1);
858: }
859:
860:
CVSweb
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to mdoc_action.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [cvsweb.bsd.lv] / mandoc