Annotation of mandoc/mdoc_action.c, Revision 1.20
1.20 ! kristaps 1: /* $Id: mdoc_action.c,v 1.19 2009/06/22 12:38:07 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: int c;
293:
294: p = NULL;
295: c = WARN_SYNTAX;
296: switch (type) {
297: case (WBADSEC):
298: p = "inappropriate document section in manual section";
299: c = WARN_COMPAT;
300: break;
301: case (WNOWIDTH):
302: p = "cannot determine default width";
303: break;
304: case (WBADDATE):
305: p = "malformed date syntax";
306: break;
307: }
308: assert(p);
309: return(mdoc_pwarn(m, line, pos, c, p));
310: }
311:
312:
313: static int
314: post_std(POST_ARGS)
315: {
316:
317: /*
318: * If '-std' is invoked without an argument, fill it in with our
319: * name (if it's been set).
320: */
321:
322: if (NULL == m->last->args)
323: return(1);
324: if (m->last->args->argv[0].sz)
325: return(1);
326:
327: assert(m->meta.name);
328:
329: m->last->args->argv[0].value = calloc(1, sizeof(char *));
330: if (NULL == m->last->args->argv[0].value)
1.2 kristaps 331: return(verr(m, EMALLOC));
1.1 kristaps 332:
333: m->last->args->argv[0].sz = 1;
1.2 kristaps 334: m->last->args->argv[0].value[0] = strdup(m->meta.name);
335: if (NULL == m->last->args->argv[0].value[0])
336: return(verr(m, EMALLOC));
337:
1.1 kristaps 338: return(1);
339: }
340:
341:
342: static int
343: post_nm(POST_ARGS)
344: {
345: char buf[64];
346:
347: if (m->meta.name)
348: return(1);
1.5 kristaps 349:
350: buf[0] = 0;
1.2 kristaps 351: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
352: return(0);
1.6 kristaps 353:
1.2 kristaps 354: if (NULL == (m->meta.name = strdup(buf)))
355: return(verr(m, EMALLOC));
1.1 kristaps 356:
357: return(1);
358: }
359:
360:
361: static int
362: post_sh(POST_ARGS)
363: {
364: enum mdoc_sec sec;
365: char buf[64];
366:
367: /*
368: * We keep track of the current section /and/ the "named"
369: * section, which is one of the conventional ones, in order to
370: * check ordering.
371: */
372:
373: if (MDOC_HEAD != m->last->type)
374: return(1);
1.5 kristaps 375:
376: buf[0] = 0;
1.2 kristaps 377: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
378: return(0);
1.1 kristaps 379: if (SEC_CUSTOM != (sec = mdoc_atosec(buf)))
380: m->lastnamed = sec;
381:
382: switch ((m->lastsec = sec)) {
383: case (SEC_RETURN_VALUES):
384: /* FALLTHROUGH */
385: case (SEC_ERRORS):
386: switch (m->meta.msec) {
387: case (2):
388: /* FALLTHROUGH */
389: case (3):
390: /* FALLTHROUGH */
391: case (9):
392: break;
393: default:
1.2 kristaps 394: return(vwarn(m, WBADSEC));
1.1 kristaps 395: }
396: break;
397: default:
398: break;
399: }
400: return(1);
401: }
402:
403:
404: static int
405: post_dt(POST_ARGS)
406: {
407: struct mdoc_node *n;
408: const char *cp;
409: char *ep;
410: long lval;
411:
412: if (m->meta.title)
413: free(m->meta.title);
414: if (m->meta.vol)
415: free(m->meta.vol);
416: if (m->meta.arch)
417: free(m->meta.arch);
418:
419: m->meta.title = m->meta.vol = m->meta.arch = NULL;
420: m->meta.msec = 0;
421:
422: /* Handles: `.Dt'
423: * --> title = unknown, volume = local, msec = 0, arch = NULL
424: */
425:
426: if (NULL == (n = m->last->child)) {
1.2 kristaps 427: if (NULL == (m->meta.title = strdup("unknown")))
428: return(verr(m, EMALLOC));
429: if (NULL == (m->meta.vol = strdup("local")))
430: return(verr(m, EMALLOC));
1.1 kristaps 431: return(post_prol(m));
432: }
433:
434: /* Handles: `.Dt TITLE'
435: * --> title = TITLE, volume = local, msec = 0, arch = NULL
436: */
437:
1.2 kristaps 438: if (NULL == (m->meta.title = strdup(n->string)))
439: return(verr(m, EMALLOC));
1.1 kristaps 440:
441: if (NULL == (n = n->next)) {
1.2 kristaps 442: if (NULL == (m->meta.vol = strdup("local")))
443: return(verr(m, EMALLOC));
1.1 kristaps 444: return(post_prol(m));
445: }
446:
447: /* Handles: `.Dt TITLE SEC'
448: * --> title = TITLE, volume = SEC is msec ?
449: * format(msec) : SEC,
450: * msec = SEC is msec ? atoi(msec) : 0,
451: * arch = NULL
452: */
453:
454: cp = mdoc_a2msec(n->string);
455: if (cp) {
1.2 kristaps 456: if (NULL == (m->meta.vol = strdup(cp)))
457: return(verr(m, EMALLOC));
1.1 kristaps 458: errno = 0;
459: lval = strtol(n->string, &ep, 10);
460: if (n->string[0] != '\0' && *ep == '\0')
461: m->meta.msec = (int)lval;
1.2 kristaps 462: } else if (NULL == (m->meta.vol = strdup(n->string)))
463: return(verr(m, EMALLOC));
1.1 kristaps 464:
465: if (NULL == (n = n->next))
466: return(post_prol(m));
467:
468: /* Handles: `.Dt TITLE SEC VOL'
469: * --> title = TITLE, volume = VOL is vol ?
470: * format(VOL) :
471: * VOL is arch ? format(arch) :
472: * VOL
473: */
474:
475: cp = mdoc_a2vol(n->string);
476: if (cp) {
477: free(m->meta.vol);
1.2 kristaps 478: if (NULL == (m->meta.vol = strdup(cp)))
479: return(verr(m, EMALLOC));
1.1 kristaps 480: n = n->next;
481: } else {
482: cp = mdoc_a2arch(n->string);
483: if (NULL == cp) {
484: free(m->meta.vol);
1.2 kristaps 485: if (NULL == (m->meta.vol = strdup(n->string)))
486: return(verr(m, EMALLOC));
487: } else if (NULL == (m->meta.arch = strdup(cp)))
488: return(verr(m, EMALLOC));
1.1 kristaps 489: }
490:
491: /* Ignore any subsequent parameters... */
492:
493: return(post_prol(m));
494: }
495:
496:
497: static int
498: post_os(POST_ARGS)
499: {
500: char buf[64];
501: struct utsname utsname;
502:
503: if (m->meta.os)
504: free(m->meta.os);
1.4 kristaps 505:
506: buf[0] = 0;
1.2 kristaps 507: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
508: return(0);
1.1 kristaps 509:
510: if (0 == buf[0]) {
511: if (-1 == uname(&utsname))
1.20 ! kristaps 512: return(verr(m, EUTSNAME));
1.4 kristaps 513: if (strlcat(buf, utsname.sysname, 64) >= 64)
1.2 kristaps 514: return(verr(m, ETOOLONG));
515: if (strlcat(buf, " ", 64) >= 64)
516: return(verr(m, ETOOLONG));
517: if (strlcat(buf, utsname.release, 64) >= 64)
518: return(verr(m, ETOOLONG));
1.1 kristaps 519: }
520:
1.2 kristaps 521: if (NULL == (m->meta.os = strdup(buf)))
522: return(verr(m, EMALLOC));
1.1 kristaps 523:
1.13 kristaps 524: m->flags |= MDOC_PBODY;
1.1 kristaps 525: return(post_prol(m));
526: }
527:
528:
529: /*
530: * Calculate the -width for a `Bl -tag' list if it hasn't been provided.
531: * Uses the first head macro.
532: */
533: static int
534: post_bl_tagwidth(struct mdoc *m)
535: {
536: struct mdoc_node *n;
537: int sz;
538: char buf[32];
539:
540: /*
541: * Use the text width, if a text node, or the default macro
542: * width if a macro.
543: */
544:
1.11 kristaps 545: n = m->last->body->child;
546: if (n) {
1.1 kristaps 547: assert(MDOC_BLOCK == n->type);
548: assert(MDOC_It == n->tok);
549: n = n->head->child;
550: }
551:
552: sz = 10; /* Default size. */
553:
554: if (n) {
555: if (MDOC_TEXT != n->type) {
556: if (0 == (sz = (int)mdoc_macro2len(n->tok)))
1.2 kristaps 557: if ( ! vwarn(m, WNOWIDTH))
1.1 kristaps 558: return(0);
559: } else
560: sz = (int)strlen(n->string) + 1;
561: }
562:
1.2 kristaps 563: if (-1 == snprintf(buf, sizeof(buf), "%dn", sz))
564: return(verr(m, ENUMFMT));
1.1 kristaps 565:
566: /*
567: * We have to dynamically add this to the macro's argument list.
568: * We're guaranteed that a MDOC_Width doesn't already exist.
569: */
570:
571: n = m->last;
572: assert(n->args);
1.2 kristaps 573: sz = (int)(n->args->argc)++;
1.1 kristaps 574:
1.2 kristaps 575: n->args->argv = realloc(n->args->argv,
1.1 kristaps 576: n->args->argc * sizeof(struct mdoc_argv));
577:
1.2 kristaps 578: if (NULL == n->args->argv)
579: return(verr(m, EMALLOC));
580:
1.1 kristaps 581: n->args->argv[sz].arg = MDOC_Width;
582: n->args->argv[sz].line = m->last->line;
583: n->args->argv[sz].pos = m->last->pos;
584: n->args->argv[sz].sz = 1;
585: n->args->argv[sz].value = calloc(1, sizeof(char *));
1.2 kristaps 586:
1.1 kristaps 587: if (NULL == n->args->argv[sz].value)
1.2 kristaps 588: return(verr(m, EMALLOC));
589: if (NULL == (n->args->argv[sz].value[0] = strdup(buf)))
590: return(verr(m, EMALLOC));
1.1 kristaps 591:
592: return(1);
593: }
594:
595:
596: static int
597: post_bl_width(struct mdoc *m)
598: {
599: size_t width;
600: int i, tok;
601: char buf[32];
602: char *p;
603:
604: if (NULL == m->last->args)
605: return(1);
606:
607: for (i = 0; i < (int)m->last->args->argc; i++)
608: if (MDOC_Width == m->last->args->argv[i].arg)
609: break;
610:
611: if (i == (int)m->last->args->argc)
612: return(1);
613: p = m->last->args->argv[i].value[0];
614:
615: /*
616: * If the value to -width is a macro, then we re-write it to be
617: * the macro's width as set in share/tmac/mdoc/doc-common.
618: */
619:
1.2 kristaps 620: if (0 == strcmp(p, "Ds"))
1.18 kristaps 621: width = 6;
1.3 kristaps 622: else if (MDOC_MAX == (tok = mdoc_hash_find(m->htab, p)))
1.1 kristaps 623: return(1);
624: else if (0 == (width = mdoc_macro2len(tok)))
1.2 kristaps 625: return(vwarn(m, WNOWIDTH));
1.1 kristaps 626:
627: /* The value already exists: free and reallocate it. */
628:
1.2 kristaps 629: if (-1 == snprintf(buf, sizeof(buf), "%zun", width))
630: return(verr(m, ENUMFMT));
1.1 kristaps 631:
632: free(m->last->args->argv[i].value[0]);
1.2 kristaps 633: m->last->args->argv[i].value[0] = strdup(buf);
634: if (NULL == m->last->args->argv[i].value[0])
635: return(verr(m, EMALLOC));
1.1 kristaps 636:
637: return(1);
638: }
639:
640:
641: static int
1.14 kristaps 642: post_bl_head(POST_ARGS)
643: {
644: int i, c;
645: struct mdoc_node *n, *nn, *nnp;
646:
647: if (NULL == m->last->child)
648: return(1);
649:
650: n = m->last->parent;
651: assert(n->args);
652:
653: for (c = 0; c < (int)n->args->argc; c++)
654: if (MDOC_Column == n->args->argv[c].arg)
655: break;
656:
657: /* Only process -column. */
658:
659: if (c == (int)n->args->argc)
660: return(1);
661:
662: assert(0 == n->args->argv[c].sz);
663:
664: /*
665: * Accomodate for new-style groff column syntax. Shuffle the
666: * child nodes, all of which must be TEXT, as arguments for the
667: * column field. Then, delete the head children.
668: */
669:
1.17 kristaps 670: n->args->argv[c].sz = (size_t)m->last->nchild;
671: n->args->argv[c].value = malloc
672: ((size_t)m->last->nchild * sizeof(char *));
1.14 kristaps 673:
674: for (i = 0, nn = m->last->child; nn; i++) {
675: n->args->argv[c].value[i] = nn->string;
676: nn->string = NULL;
677: nnp = nn;
678: nn = nn->next;
679: mdoc_node_free(nnp);
680: }
681:
1.17 kristaps 682: m->last->nchild = 0;
1.14 kristaps 683: m->last->child = NULL;
1.17 kristaps 684:
1.14 kristaps 685: return(1);
686: }
687:
688:
689: static int
1.1 kristaps 690: post_bl(POST_ARGS)
691: {
692: int i, r, len;
693:
1.14 kristaps 694: if (MDOC_HEAD == m->last->type)
695: return(post_bl_head(m));
1.1 kristaps 696: if (MDOC_BLOCK != m->last->type)
697: return(1);
698:
699: /*
700: * These are fairly complicated, so we've broken them into two
701: * functions. post_bl_tagwidth() is called when a -tag is
702: * specified, but no -width (it must be guessed). The second
703: * when a -width is specified (macro indicators must be
704: * rewritten into real lengths).
705: */
706:
707: len = (int)(m->last->args ? m->last->args->argc : 0);
708:
709: for (r = i = 0; i < len; i++) {
710: if (MDOC_Tag == m->last->args->argv[i].arg)
711: r |= 1 << 0;
712: if (MDOC_Width == m->last->args->argv[i].arg)
713: r |= 1 << 1;
714: }
715:
716: if (r & (1 << 0) && ! (r & (1 << 1))) {
717: if ( ! post_bl_tagwidth(m))
718: return(0);
719: } else if (r & (1 << 1))
720: if ( ! post_bl_width(m))
721: return(0);
722:
723: return(1);
724: }
725:
726:
727: static int
1.10 kristaps 728: post_lk(POST_ARGS)
729: {
730: struct mdoc_node *n;
731:
732: if (m->last->child)
733: return(1);
734:
735: n = m->last;
736: m->next = MDOC_NEXT_CHILD;
737: /* FIXME: this isn't documented anywhere! */
738: if ( ! mdoc_word_alloc(m, m->last->line,
739: m->last->pos, "~"))
740: return(0);
741:
742: m->last = n;
743: m->next = MDOC_NEXT_SIBLING;
744: return(1);
745: }
746:
747:
748: static int
1.1 kristaps 749: post_ar(POST_ARGS)
750: {
751: struct mdoc_node *n;
752:
753: if (m->last->child)
754: return(1);
755:
756: n = m->last;
757: m->next = MDOC_NEXT_CHILD;
758: if ( ! mdoc_word_alloc(m, m->last->line,
759: m->last->pos, "file"))
760: return(0);
761: m->next = MDOC_NEXT_SIBLING;
762: if ( ! mdoc_word_alloc(m, m->last->line,
763: m->last->pos, "..."))
764: return(0);
765:
766: m->last = n;
767: m->next = MDOC_NEXT_SIBLING;
768: return(1);
769: }
770:
771:
772: static int
773: post_dd(POST_ARGS)
774: {
775: char buf[64];
776:
1.5 kristaps 777: buf[0] = 0;
1.2 kristaps 778: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
779: return(0);
1.1 kristaps 780:
781: if (0 == (m->meta.date = mdoc_atotime(buf))) {
1.2 kristaps 782: if ( ! vwarn(m, WBADDATE))
1.1 kristaps 783: return(0);
784: m->meta.date = time(NULL);
785: }
786:
787: return(post_prol(m));
788: }
789:
790:
791: static int
792: post_prol(POST_ARGS)
793: {
794: struct mdoc_node *n;
795:
796: /*
797: * The end document shouldn't have the prologue macros as part
798: * of the syntax tree (they encompass only meta-data).
799: */
800:
801: if (m->last->parent->child == m->last)
802: m->last->parent->child = m->last->prev;
803: if (m->last->prev)
804: m->last->prev->next = NULL;
805:
806: n = m->last;
807: assert(NULL == m->last->next);
808:
809: if (m->last->prev) {
810: m->last = m->last->prev;
811: m->next = MDOC_NEXT_SIBLING;
812: } else {
813: m->last = m->last->parent;
814: m->next = MDOC_NEXT_CHILD;
815: }
816:
817: mdoc_node_freelist(n);
818: return(1);
819: }
820:
821:
822: static int
823: pre_dl(PRE_ARGS)
824: {
825:
1.16 kristaps 826: if (MDOC_BODY == n->type)
827: m->flags |= MDOC_LITERAL;
1.1 kristaps 828: return(1);
829: }
830:
831:
832: static int
833: pre_bd(PRE_ARGS)
834: {
835: int i;
836:
837: if (MDOC_BODY != n->type)
838: return(1);
839:
1.2 kristaps 840: /* Enter literal context if `Bd -literal' or * -unfilled'. */
1.1 kristaps 841:
1.2 kristaps 842: for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
1.1 kristaps 843: if (MDOC_Literal == n->args->argv[i].arg)
844: break;
845: else if (MDOC_Unfilled == n->args->argv[i].arg)
846: break;
847:
848: if (i < (int)n->args->argc)
849: m->flags |= MDOC_LITERAL;
850:
851: return(1);
852: }
853:
854:
855: static int
856: post_display(POST_ARGS)
857: {
858:
859: if (MDOC_BODY == m->last->type)
860: m->flags &= ~MDOC_LITERAL;
861: return(1);
862: }
863:
864:
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