Annotation of mandoc/mdoc_action.c, Revision 1.38
1.38 ! kristaps 1: /* $Id: mdoc_action.c,v 1.37 2009/09/16 20:49:06 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:
1.35 kristaps 27: #define POST_ARGS struct mdoc *m, struct mdoc_node *n
1.1 kristaps 28: #define PRE_ARGS struct mdoc *m, const struct mdoc_node *n
29:
30: struct actions {
31: int (*pre)(PRE_ARGS);
32: int (*post)(POST_ARGS);
33: };
34:
35: static int post_ar(POST_ARGS);
1.25 kristaps 36: static int post_at(POST_ARGS);
1.1 kristaps 37: static int post_bl(POST_ARGS);
1.14 kristaps 38: static int post_bl_head(POST_ARGS);
1.25 kristaps 39: static int post_bl_tagwidth(POST_ARGS);
1.1 kristaps 40: static int post_bl_width(POST_ARGS);
41: static int post_dd(POST_ARGS);
42: static int post_display(POST_ARGS);
43: static int post_dt(POST_ARGS);
1.27 kristaps 44: static int post_lb(POST_ARGS);
1.1 kristaps 45: static int post_nm(POST_ARGS);
46: static int post_os(POST_ARGS);
47: static int post_prol(POST_ARGS);
48: static int post_sh(POST_ARGS);
1.26 kristaps 49: static int post_st(POST_ARGS);
1.1 kristaps 50: static int post_std(POST_ARGS);
1.31 kristaps 51: static int post_tilde(POST_ARGS);
1.1 kristaps 52:
53: static int pre_bd(PRE_ARGS);
1.38 ! kristaps 54: static int pre_bl(PRE_ARGS);
1.1 kristaps 55: static int pre_dl(PRE_ARGS);
1.38 ! kristaps 56: static int pre_offset(PRE_ARGS);
1.1 kristaps 57:
1.37 kristaps 58: static const struct actions mdoc_actions[MDOC_MAX] = {
1.12 kristaps 59: { NULL, NULL }, /* Ap */
1.1 kristaps 60: { NULL, post_dd }, /* Dd */
61: { NULL, post_dt }, /* Dt */
62: { NULL, post_os }, /* Os */
63: { NULL, post_sh }, /* Sh */
64: { NULL, NULL }, /* Ss */
65: { NULL, NULL }, /* Pp */
66: { NULL, NULL }, /* D1 */
67: { pre_dl, post_display }, /* Dl */
68: { pre_bd, post_display }, /* Bd */
69: { NULL, NULL }, /* Ed */
1.38 ! kristaps 70: { pre_bl, post_bl }, /* Bl */
1.1 kristaps 71: { NULL, NULL }, /* El */
72: { NULL, NULL }, /* It */
73: { NULL, NULL }, /* Ad */
74: { NULL, NULL }, /* An */
75: { NULL, post_ar }, /* Ar */
1.35 kristaps 76: { NULL, NULL }, /* Cd */
1.1 kristaps 77: { NULL, NULL }, /* Cm */
78: { NULL, NULL }, /* Dv */
79: { NULL, NULL }, /* Er */
80: { NULL, NULL }, /* Ev */
81: { NULL, post_std }, /* Ex */
82: { NULL, NULL }, /* Fa */
83: { NULL, NULL }, /* Fd */
84: { NULL, NULL }, /* Fl */
85: { NULL, NULL }, /* Fn */
86: { NULL, NULL }, /* Ft */
87: { NULL, NULL }, /* Ic */
88: { NULL, NULL }, /* In */
89: { NULL, NULL }, /* Li */
90: { NULL, NULL }, /* Nd */
91: { NULL, post_nm }, /* Nm */
92: { NULL, NULL }, /* Op */
93: { NULL, NULL }, /* Ot */
1.31 kristaps 94: { NULL, post_tilde }, /* Pa */
1.1 kristaps 95: { NULL, post_std }, /* Rv */
1.26 kristaps 96: { NULL, post_st }, /* St */
1.1 kristaps 97: { NULL, NULL }, /* Va */
98: { NULL, NULL }, /* Vt */
99: { NULL, NULL }, /* Xr */
100: { NULL, NULL }, /* %A */
101: { NULL, NULL }, /* %B */
102: { NULL, NULL }, /* %D */
103: { NULL, NULL }, /* %I */
104: { NULL, NULL }, /* %J */
105: { NULL, NULL }, /* %N */
106: { NULL, NULL }, /* %O */
107: { NULL, NULL }, /* %P */
108: { NULL, NULL }, /* %R */
109: { NULL, NULL }, /* %T */
110: { NULL, NULL }, /* %V */
111: { NULL, NULL }, /* Ac */
112: { NULL, NULL }, /* Ao */
113: { NULL, NULL }, /* Aq */
1.25 kristaps 114: { NULL, post_at }, /* At */
1.1 kristaps 115: { NULL, NULL }, /* Bc */
116: { NULL, NULL }, /* Bf */
117: { NULL, NULL }, /* Bo */
118: { NULL, NULL }, /* Bq */
119: { NULL, NULL }, /* Bsx */
120: { NULL, NULL }, /* Bx */
121: { NULL, NULL }, /* Db */
122: { NULL, NULL }, /* Dc */
123: { NULL, NULL }, /* Do */
124: { NULL, NULL }, /* Dq */
125: { NULL, NULL }, /* Ec */
126: { NULL, NULL }, /* Ef */
127: { NULL, NULL }, /* Em */
128: { NULL, NULL }, /* Eo */
129: { NULL, NULL }, /* Fx */
130: { NULL, NULL }, /* Ms */
131: { NULL, NULL }, /* No */
132: { NULL, NULL }, /* Ns */
133: { NULL, NULL }, /* Nx */
134: { NULL, NULL }, /* Ox */
135: { NULL, NULL }, /* Pc */
136: { NULL, NULL }, /* Pf */
137: { NULL, NULL }, /* Po */
138: { NULL, NULL }, /* Pq */
139: { NULL, NULL }, /* Qc */
140: { NULL, NULL }, /* Ql */
141: { NULL, NULL }, /* Qo */
142: { NULL, NULL }, /* Qq */
143: { NULL, NULL }, /* Re */
144: { NULL, NULL }, /* Rs */
145: { NULL, NULL }, /* Sc */
146: { NULL, NULL }, /* So */
147: { NULL, NULL }, /* Sq */
148: { NULL, NULL }, /* Sm */
149: { NULL, NULL }, /* Sx */
150: { NULL, NULL }, /* Sy */
151: { NULL, NULL }, /* Tn */
152: { NULL, NULL }, /* Ux */
153: { NULL, NULL }, /* Xc */
154: { NULL, NULL }, /* Xo */
155: { NULL, NULL }, /* Fo */
156: { NULL, NULL }, /* Fc */
157: { NULL, NULL }, /* Oo */
158: { NULL, NULL }, /* Oc */
159: { NULL, NULL }, /* Bk */
160: { NULL, NULL }, /* Ek */
161: { NULL, NULL }, /* Bt */
162: { NULL, NULL }, /* Hf */
163: { NULL, NULL }, /* Fr */
164: { NULL, NULL }, /* Ud */
1.27 kristaps 165: { NULL, post_lb }, /* Lb */
1.1 kristaps 166: { NULL, NULL }, /* Lp */
1.31 kristaps 167: { NULL, post_tilde }, /* Lk */
1.1 kristaps 168: { NULL, NULL }, /* Mt */
169: { NULL, NULL }, /* Brq */
170: { NULL, NULL }, /* Bro */
171: { NULL, NULL }, /* Brc */
172: { NULL, NULL }, /* %C */
173: { NULL, NULL }, /* Es */
174: { NULL, NULL }, /* En */
175: { NULL, NULL }, /* Dx */
176: { NULL, NULL }, /* %Q */
1.30 kristaps 177: { NULL, NULL }, /* br */
178: { NULL, NULL }, /* sp */
1.1 kristaps 179: };
180:
1.25 kristaps 181: static int concat(struct mdoc *, const struct mdoc_node *,
182: char *, size_t);
1.1 kristaps 183:
1.2 kristaps 184: #ifdef __linux__
1.25 kristaps 185: extern size_t strlcat(char *, const char *, size_t);
1.2 kristaps 186: #endif
187:
188:
1.1 kristaps 189: int
190: mdoc_action_pre(struct mdoc *m, const struct mdoc_node *n)
191: {
192:
193: switch (n->type) {
194: case (MDOC_ROOT):
1.2 kristaps 195: /* FALLTHROUGH */
1.1 kristaps 196: case (MDOC_TEXT):
1.2 kristaps 197: return(1);
198: default:
1.1 kristaps 199: break;
200: }
1.2 kristaps 201:
1.6 kristaps 202: if (NULL == mdoc_actions[n->tok].pre)
1.2 kristaps 203: return(1);
1.6 kristaps 204: return((*mdoc_actions[n->tok].pre)(m, n));
1.1 kristaps 205: }
206:
207:
208: int
209: mdoc_action_post(struct mdoc *m)
210: {
211:
212: if (MDOC_ACTED & m->last->flags)
213: return(1);
214: m->last->flags |= MDOC_ACTED;
215:
216: switch (m->last->type) {
217: case (MDOC_TEXT):
1.2 kristaps 218: /* FALLTHROUGH */
1.1 kristaps 219: case (MDOC_ROOT):
1.2 kristaps 220: return(1);
221: default:
1.1 kristaps 222: break;
223: }
1.2 kristaps 224:
225: if (NULL == mdoc_actions[m->last->tok].post)
226: return(1);
1.35 kristaps 227: return((*mdoc_actions[m->last->tok].post)(m, m->last));
1.2 kristaps 228: }
229:
230:
231: static int
232: concat(struct mdoc *m, const struct mdoc_node *n,
233: char *buf, size_t sz)
234: {
235:
236: for ( ; n; n = n->next) {
237: assert(MDOC_TEXT == n->type);
238: if (strlcat(buf, n->string, sz) >= sz)
1.23 kristaps 239: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 240: if (NULL == n->next)
241: continue;
242: if (strlcat(buf, " ", sz) >= sz)
1.23 kristaps 243: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 244: }
245:
1.1 kristaps 246: return(1);
247: }
248:
249:
250: static int
251: post_std(POST_ARGS)
252: {
1.35 kristaps 253: struct mdoc_node *nn;
1.1 kristaps 254:
1.35 kristaps 255: if (n->child)
1.1 kristaps 256: return(1);
1.35 kristaps 257:
258: nn = n;
259: m->next = MDOC_NEXT_CHILD;
1.1 kristaps 260: assert(m->meta.name);
1.35 kristaps 261: if ( ! mdoc_word_alloc(m, n->line, n->pos, m->meta.name))
262: return(0);
263: m->last = nn;
1.2 kristaps 264:
1.1 kristaps 265: return(1);
266: }
267:
268:
269: static int
270: post_nm(POST_ARGS)
271: {
272: char buf[64];
273:
274: if (m->meta.name)
275: return(1);
1.5 kristaps 276:
277: buf[0] = 0;
1.35 kristaps 278: if ( ! concat(m, n->child, buf, sizeof(buf)))
1.2 kristaps 279: return(0);
280: if (NULL == (m->meta.name = strdup(buf)))
1.35 kristaps 281: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 282:
283: return(1);
284: }
285:
286:
287: static int
1.27 kristaps 288: post_lb(POST_ARGS)
289: {
290: const char *p;
291: char *buf;
292: size_t sz;
293:
1.35 kristaps 294: assert(MDOC_TEXT == n->child->type);
295: p = mdoc_a2lib(n->child->string);
1.27 kristaps 296: if (NULL == p) {
1.35 kristaps 297: sz = strlen(n->child->string) +
1.27 kristaps 298: 2 + strlen("\\(lqlibrary\\(rq");
299: buf = malloc(sz);
300: if (NULL == buf)
1.35 kristaps 301: return(mdoc_nerr(m, n, EMALLOC));
1.27 kristaps 302: (void)snprintf(buf, sz, "library \\(lq%s\\(rq",
1.35 kristaps 303: n->child->string);
304: free(n->child->string);
305: n->child->string = buf;
1.27 kristaps 306: return(1);
307: }
308:
1.35 kristaps 309: free(n->child->string);
310: n->child->string = strdup(p);
311: if (NULL == n->child->string)
312: return(mdoc_nerr(m, n, EMALLOC));
313:
1.27 kristaps 314: return(1);
315: }
316:
317:
318: static int
1.26 kristaps 319: post_st(POST_ARGS)
320: {
321: const char *p;
322:
1.35 kristaps 323: assert(MDOC_TEXT == n->child->type);
324: p = mdoc_a2st(n->child->string);
1.26 kristaps 325: assert(p);
1.35 kristaps 326: free(n->child->string);
327: n->child->string = strdup(p);
328: if (NULL == n->child->string)
329: return(mdoc_nerr(m, n, EMALLOC));
330:
1.26 kristaps 331: return(1);
332: }
333:
334:
335: static int
1.25 kristaps 336: post_at(POST_ARGS)
337: {
1.35 kristaps 338: struct mdoc_node *nn;
339: const char *p;
1.25 kristaps 340:
1.35 kristaps 341: if (n->child) {
342: assert(MDOC_TEXT == n->child->type);
343: p = mdoc_a2att(n->child->string);
1.25 kristaps 344: assert(p);
1.35 kristaps 345: free(n->child->string);
346: n->child->string = strdup(p);
347: if (NULL == n->child->string)
348: return(mdoc_nerr(m, n, EMALLOC));
1.25 kristaps 349: return(1);
350: }
351:
1.35 kristaps 352: nn = n;
1.25 kristaps 353: m->next = MDOC_NEXT_CHILD;
354:
1.35 kristaps 355: if ( ! mdoc_word_alloc(m, nn->line, nn->pos, "AT&T UNIX"))
1.25 kristaps 356: return(0);
1.35 kristaps 357: m->last = nn;
1.25 kristaps 358:
359: return(1);
360: }
361:
362:
363: static int
1.1 kristaps 364: post_sh(POST_ARGS)
365: {
366: enum mdoc_sec sec;
367: char buf[64];
368:
369: /*
370: * We keep track of the current section /and/ the "named"
371: * section, which is one of the conventional ones, in order to
372: * check ordering.
373: */
374:
1.35 kristaps 375: if (MDOC_HEAD != n->type)
1.1 kristaps 376: return(1);
1.5 kristaps 377:
378: buf[0] = 0;
1.35 kristaps 379: if ( ! concat(m, n->child, buf, sizeof(buf)))
1.2 kristaps 380: return(0);
1.1 kristaps 381: if (SEC_CUSTOM != (sec = mdoc_atosec(buf)))
382: m->lastnamed = sec;
383:
384: switch ((m->lastsec = sec)) {
385: case (SEC_RETURN_VALUES):
386: /* FALLTHROUGH */
387: case (SEC_ERRORS):
388: switch (m->meta.msec) {
389: case (2):
390: /* FALLTHROUGH */
391: case (3):
392: /* FALLTHROUGH */
393: case (9):
394: break;
395: default:
1.35 kristaps 396: return(mdoc_nwarn(m, n, EBADSEC));
1.1 kristaps 397: }
398: break;
399: default:
400: break;
401: }
402: return(1);
403: }
404:
405:
406: static int
407: post_dt(POST_ARGS)
408: {
1.35 kristaps 409: struct mdoc_node *nn;
1.1 kristaps 410: const char *cp;
411: char *ep;
412: long lval;
413:
414: if (m->meta.title)
415: free(m->meta.title);
416: if (m->meta.vol)
417: free(m->meta.vol);
418: if (m->meta.arch)
419: free(m->meta.arch);
420:
421: m->meta.title = m->meta.vol = m->meta.arch = NULL;
422: m->meta.msec = 0;
423:
424: /* Handles: `.Dt'
425: * --> title = unknown, volume = local, msec = 0, arch = NULL
426: */
427:
1.35 kristaps 428: if (NULL == (nn = n->child)) {
1.2 kristaps 429: if (NULL == (m->meta.title = strdup("unknown")))
1.35 kristaps 430: return(mdoc_nerr(m, n, EMALLOC));
1.2 kristaps 431: if (NULL == (m->meta.vol = strdup("local")))
1.35 kristaps 432: return(mdoc_nerr(m, n, EMALLOC));
433: return(post_prol(m, n));
1.1 kristaps 434: }
435:
436: /* Handles: `.Dt TITLE'
437: * --> title = TITLE, volume = local, msec = 0, arch = NULL
438: */
439:
1.35 kristaps 440: if (NULL == (m->meta.title = strdup(nn->string)))
441: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 442:
1.35 kristaps 443: if (NULL == (nn = nn->next)) {
1.2 kristaps 444: if (NULL == (m->meta.vol = strdup("local")))
1.35 kristaps 445: return(mdoc_nerr(m, n, EMALLOC));
446: return(post_prol(m, n));
1.1 kristaps 447: }
448:
449: /* Handles: `.Dt TITLE SEC'
450: * --> title = TITLE, volume = SEC is msec ?
451: * format(msec) : SEC,
452: * msec = SEC is msec ? atoi(msec) : 0,
453: * arch = NULL
454: */
455:
1.35 kristaps 456: cp = mdoc_a2msec(nn->string);
1.1 kristaps 457: if (cp) {
1.2 kristaps 458: if (NULL == (m->meta.vol = strdup(cp)))
1.35 kristaps 459: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 460: errno = 0;
1.35 kristaps 461: lval = strtol(nn->string, &ep, 10);
462: if (nn->string[0] != '\0' && *ep == '\0')
1.1 kristaps 463: m->meta.msec = (int)lval;
1.35 kristaps 464: } else if (NULL == (m->meta.vol = strdup(nn->string)))
465: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 466:
1.35 kristaps 467: if (NULL == (nn = nn->next))
468: return(post_prol(m, n));
1.1 kristaps 469:
470: /* Handles: `.Dt TITLE SEC VOL'
471: * --> title = TITLE, volume = VOL is vol ?
472: * format(VOL) :
473: * VOL is arch ? format(arch) :
474: * VOL
475: */
476:
1.35 kristaps 477: cp = mdoc_a2vol(nn->string);
1.1 kristaps 478: if (cp) {
479: free(m->meta.vol);
1.2 kristaps 480: if (NULL == (m->meta.vol = strdup(cp)))
1.35 kristaps 481: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 482: } else {
1.35 kristaps 483: cp = mdoc_a2arch(nn->string);
1.1 kristaps 484: if (NULL == cp) {
485: free(m->meta.vol);
1.35 kristaps 486: if (NULL == (m->meta.vol = strdup(nn->string)))
487: return(mdoc_nerr(m, n, EMALLOC));
1.2 kristaps 488: } else if (NULL == (m->meta.arch = strdup(cp)))
1.35 kristaps 489: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 490: }
491:
492: /* Ignore any subsequent parameters... */
493:
1.35 kristaps 494: return(post_prol(m, n));
1.1 kristaps 495: }
496:
497:
498: static int
499: post_os(POST_ARGS)
500: {
501: char buf[64];
502: struct utsname utsname;
503:
504: if (m->meta.os)
505: free(m->meta.os);
1.4 kristaps 506:
507: buf[0] = 0;
1.35 kristaps 508: if ( ! concat(m, n->child, buf, sizeof(buf)))
1.2 kristaps 509: return(0);
1.1 kristaps 510:
511: if (0 == buf[0]) {
512: if (-1 == uname(&utsname))
1.35 kristaps 513: return(mdoc_nerr(m, n, EUTSNAME));
1.4 kristaps 514: if (strlcat(buf, utsname.sysname, 64) >= 64)
1.35 kristaps 515: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 516: if (strlcat(buf, " ", 64) >= 64)
1.35 kristaps 517: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 518: if (strlcat(buf, utsname.release, 64) >= 64)
1.35 kristaps 519: return(mdoc_nerr(m, n, ETOOLONG));
1.1 kristaps 520: }
521:
1.2 kristaps 522: if (NULL == (m->meta.os = strdup(buf)))
1.35 kristaps 523: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 524:
1.35 kristaps 525: return(post_prol(m, n));
1.1 kristaps 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
1.35 kristaps 534: post_bl_tagwidth(POST_ARGS)
1.1 kristaps 535: {
1.35 kristaps 536: struct mdoc_node *nn;
1.1 kristaps 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:
1.35 kristaps 545: nn = n->body->child;
546: if (nn) {
547: assert(MDOC_BLOCK == nn->type);
548: assert(MDOC_It == nn->tok);
549: nn = nn->head->child;
1.1 kristaps 550: }
551:
552: sz = 10; /* Default size. */
553:
1.35 kristaps 554: if (nn) {
555: if (MDOC_TEXT != nn->type) {
556: if (0 == (sz = (int)mdoc_macro2len(nn->tok)))
557: if ( ! mdoc_nwarn(m, n, ENOWIDTH))
1.1 kristaps 558: return(0);
559: } else
1.35 kristaps 560: sz = (int)strlen(nn->string) + 1;
1.1 kristaps 561: }
562:
1.2 kristaps 563: if (-1 == snprintf(buf, sizeof(buf), "%dn", sz))
1.35 kristaps 564: return(mdoc_nerr(m, n, 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:
1.35 kristaps 571: nn = n;
572: assert(nn->args);
573: sz = (int)(nn->args->argc)++;
1.1 kristaps 574:
1.35 kristaps 575: nn->args->argv = realloc(nn->args->argv,
576: nn->args->argc * sizeof(struct mdoc_argv));
1.1 kristaps 577:
1.35 kristaps 578: if (NULL == nn->args->argv)
579: return(mdoc_nerr(m, n, EMALLOC));
1.2 kristaps 580:
1.35 kristaps 581: nn->args->argv[sz].arg = MDOC_Width;
582: nn->args->argv[sz].line = n->line;
583: nn->args->argv[sz].pos = n->pos;
584: nn->args->argv[sz].sz = 1;
585: nn->args->argv[sz].value = calloc(1, sizeof(char *));
1.2 kristaps 586:
1.35 kristaps 587: if (NULL == nn->args->argv[sz].value)
588: return(mdoc_nerr(m, n, EMALLOC));
589: if (NULL == (nn->args->argv[sz].value[0] = strdup(buf)))
590: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 591:
592: return(1);
593: }
594:
595:
596: static int
1.35 kristaps 597: post_bl_width(POST_ARGS)
1.1 kristaps 598: {
599: size_t width;
600: int i, tok;
601: char buf[32];
602: char *p;
603:
1.35 kristaps 604: if (NULL == n->args)
1.1 kristaps 605: return(1);
606:
1.35 kristaps 607: for (i = 0; i < (int)n->args->argc; i++)
608: if (MDOC_Width == n->args->argv[i].arg)
1.1 kristaps 609: break;
610:
1.35 kristaps 611: if (i == (int)n->args->argc)
1.1 kristaps 612: return(1);
1.35 kristaps 613: p = n->args->argv[i].value[0];
1.1 kristaps 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;
1.36 kristaps 622: else if (MDOC_MAX == (tok = mdoc_hash_find(p)))
1.1 kristaps 623: return(1);
624: else if (0 == (width = mdoc_macro2len(tok)))
1.35 kristaps 625: return(mdoc_nwarn(m, n, ENOWIDTH));
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))
1.35 kristaps 630: return(mdoc_nerr(m, n, ENUMFMT));
1.1 kristaps 631:
1.35 kristaps 632: free(n->args->argv[i].value[0]);
633: n->args->argv[i].value[0] = strdup(buf);
634: if (NULL == n->args->argv[i].value[0])
635: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 636:
637: return(1);
638: }
639:
640:
1.35 kristaps 641: /* ARGSUSED */
1.1 kristaps 642: static int
1.14 kristaps 643: post_bl_head(POST_ARGS)
644: {
645: int i, c;
1.35 kristaps 646: struct mdoc_node *np, *nn, *nnp;
1.14 kristaps 647:
1.35 kristaps 648: if (NULL == n->child)
1.14 kristaps 649: return(1);
650:
1.35 kristaps 651: np = n->parent;
652: assert(np->args);
1.14 kristaps 653:
1.35 kristaps 654: for (c = 0; c < (int)np->args->argc; c++)
655: if (MDOC_Column == np->args->argv[c].arg)
1.14 kristaps 656: break;
657:
658: /* Only process -column. */
659:
1.35 kristaps 660: if (c == (int)np->args->argc)
1.14 kristaps 661: return(1);
662:
1.35 kristaps 663: assert(0 == np->args->argv[c].sz);
1.14 kristaps 664:
665: /*
666: * Accomodate for new-style groff column syntax. Shuffle the
667: * child nodes, all of which must be TEXT, as arguments for the
668: * column field. Then, delete the head children.
669: */
670:
1.35 kristaps 671: np->args->argv[c].sz = (size_t)n->nchild;
672: np->args->argv[c].value = malloc
673: ((size_t)n->nchild * sizeof(char *));
1.14 kristaps 674:
1.35 kristaps 675: for (i = 0, nn = n->child; nn; i++) {
676: np->args->argv[c].value[i] = nn->string;
1.14 kristaps 677: nn->string = NULL;
678: nnp = nn;
679: nn = nn->next;
680: mdoc_node_free(nnp);
681: }
682:
1.35 kristaps 683: n->nchild = 0;
684: n->child = NULL;
1.17 kristaps 685:
1.14 kristaps 686: return(1);
687: }
688:
689:
690: static int
1.1 kristaps 691: post_bl(POST_ARGS)
692: {
693: int i, r, len;
694:
1.35 kristaps 695: if (MDOC_HEAD == n->type)
696: return(post_bl_head(m, n));
697: if (MDOC_BLOCK != n->type)
1.1 kristaps 698: return(1);
699:
700: /*
701: * These are fairly complicated, so we've broken them into two
702: * functions. post_bl_tagwidth() is called when a -tag is
703: * specified, but no -width (it must be guessed). The second
704: * when a -width is specified (macro indicators must be
705: * rewritten into real lengths).
706: */
707:
1.35 kristaps 708: len = (int)(n->args ? n->args->argc : 0);
1.1 kristaps 709:
710: for (r = i = 0; i < len; i++) {
1.35 kristaps 711: if (MDOC_Tag == n->args->argv[i].arg)
1.1 kristaps 712: r |= 1 << 0;
1.35 kristaps 713: if (MDOC_Width == n->args->argv[i].arg)
1.1 kristaps 714: r |= 1 << 1;
715: }
716:
717: if (r & (1 << 0) && ! (r & (1 << 1))) {
1.35 kristaps 718: if ( ! post_bl_tagwidth(m, n))
1.1 kristaps 719: return(0);
720: } else if (r & (1 << 1))
1.35 kristaps 721: if ( ! post_bl_width(m, n))
1.1 kristaps 722: return(0);
723:
724: return(1);
725: }
726:
727:
728: static int
1.31 kristaps 729: post_tilde(POST_ARGS)
1.10 kristaps 730: {
1.35 kristaps 731: struct mdoc_node *np;
1.10 kristaps 732:
1.35 kristaps 733: if (n->child)
1.10 kristaps 734: return(1);
735:
1.35 kristaps 736: np = n;
1.10 kristaps 737: m->next = MDOC_NEXT_CHILD;
1.24 kristaps 738:
1.31 kristaps 739: /* XXX: not documented for `Lk'. */
1.35 kristaps 740: if ( ! mdoc_word_alloc(m, n->line, n->pos, "~"))
1.10 kristaps 741: return(0);
1.35 kristaps 742: m->last = np;
1.10 kristaps 743:
744: return(1);
745: }
746:
747:
748: static int
1.1 kristaps 749: post_ar(POST_ARGS)
750: {
1.35 kristaps 751: struct mdoc_node *np;
1.1 kristaps 752:
1.35 kristaps 753: if (n->child)
1.1 kristaps 754: return(1);
755:
1.35 kristaps 756: np = n;
1.1 kristaps 757: m->next = MDOC_NEXT_CHILD;
1.35 kristaps 758: if ( ! mdoc_word_alloc(m, n->line, n->pos, "file"))
1.1 kristaps 759: return(0);
1.35 kristaps 760: if ( ! mdoc_word_alloc(m, n->line, n->pos, "..."))
1.1 kristaps 761: return(0);
1.35 kristaps 762: m->last = np;
1.1 kristaps 763:
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;
1.35 kristaps 774: if ( ! concat(m, n->child, buf, sizeof(buf)))
1.2 kristaps 775: return(0);
1.1 kristaps 776:
777: if (0 == (m->meta.date = mdoc_atotime(buf))) {
1.35 kristaps 778: if ( ! mdoc_nwarn(m, n, EBADDATE))
1.1 kristaps 779: return(0);
780: m->meta.date = time(NULL);
781: }
782:
1.35 kristaps 783: return(post_prol(m, n));
1.1 kristaps 784: }
785:
786:
787: static int
788: post_prol(POST_ARGS)
789: {
1.35 kristaps 790: struct mdoc_node *np;
1.1 kristaps 791:
1.35 kristaps 792: /* Remove prologue macros from AST. */
1.1 kristaps 793:
1.35 kristaps 794: if (n->parent->child == n)
795: n->parent->child = n->prev;
796: if (n->prev)
797: n->prev->next = NULL;
1.1 kristaps 798:
1.35 kristaps 799: np = n;
800: assert(NULL == n->next);
1.1 kristaps 801:
1.35 kristaps 802: if (n->prev) {
803: m->last = n->prev;
1.1 kristaps 804: m->next = MDOC_NEXT_SIBLING;
805: } else {
1.35 kristaps 806: m->last = n->parent;
1.1 kristaps 807: m->next = MDOC_NEXT_CHILD;
808: }
809:
1.35 kristaps 810: mdoc_node_freelist(np);
1.34 kristaps 811:
812: if (m->meta.title && m->meta.date && m->meta.os)
813: m->flags |= MDOC_PBODY;
1.35 kristaps 814:
1.1 kristaps 815: return(1);
816: }
817:
818:
819: static int
820: pre_dl(PRE_ARGS)
821: {
822:
1.16 kristaps 823: if (MDOC_BODY == n->type)
824: m->flags |= MDOC_LITERAL;
1.1 kristaps 825: return(1);
826: }
827:
828:
829: static int
1.38 ! kristaps 830: pre_offset(PRE_ARGS)
! 831: {
! 832: int i;
! 833:
! 834: /*
! 835: * Make sure that an empty offset produces an 8n length space as
! 836: * stipulated by mdoc.samples.
! 837: */
! 838:
! 839: assert(n->args);
! 840: for (i = 0; i < (int)n->args->argc; i++) {
! 841: if (MDOC_Offset != n->args->argv[i].arg)
! 842: continue;
! 843: if (n->args->argv[i].sz)
! 844: break;
! 845: assert(1 == n->args->refcnt);
! 846: /* If no value set, length of <string>. */
! 847: n->args->argv[i].value =
! 848: calloc(1, sizeof(char *));
! 849: if (NULL == n->args->argv[i].value)
! 850: return(mdoc_nerr(m, n, EMALLOC));
! 851: n->args->argv[i].sz++;
! 852: n->args->argv[i].value[0] = strdup("8n");
! 853: if (NULL == n->args->argv[i].value[0])
! 854: return(mdoc_nerr(m, n, EMALLOC));
! 855: break;
! 856: }
! 857:
! 858: return(1);
! 859: }
! 860:
! 861:
! 862: static int
! 863: pre_bl(PRE_ARGS)
! 864: {
! 865:
! 866: return(MDOC_BLOCK == n->type ? pre_offset(m, n) : 1);
! 867: }
! 868:
! 869:
! 870: static int
1.1 kristaps 871: pre_bd(PRE_ARGS)
872: {
873: int i;
874:
1.38 ! kristaps 875: if (MDOC_BLOCK == n->type)
! 876: return(pre_offset(m, n));
1.1 kristaps 877: if (MDOC_BODY != n->type)
878: return(1);
879:
1.32 kristaps 880: /* Enter literal context if `Bd -literal' or `-unfilled'. */
881:
1.2 kristaps 882: for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
1.1 kristaps 883: if (MDOC_Literal == n->args->argv[i].arg)
1.38 ! kristaps 884: m->flags |= MDOC_LITERAL;
1.1 kristaps 885: else if (MDOC_Unfilled == n->args->argv[i].arg)
1.38 ! kristaps 886: m->flags |= MDOC_LITERAL;
1.1 kristaps 887:
888: return(1);
889: }
890:
891:
892: static int
893: post_display(POST_ARGS)
894: {
895:
1.35 kristaps 896: if (MDOC_BODY == n->type)
1.1 kristaps 897: m->flags &= ~MDOC_LITERAL;
898: return(1);
899: }
900:
901:
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