Annotation of mandoc/mdoc_action.c, Revision 1.28
1.28 ! kristaps 1: /* $Id: mdoc_action.c,v 1.27 2009/07/12 20:50:08 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: #define PRE_ARGS struct mdoc *m, const struct mdoc_node *n
28: #define POST_ARGS struct mdoc *m
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);
1.10 kristaps 45: static int post_lk(POST_ARGS);
1.1 kristaps 46: static int post_nm(POST_ARGS);
47: static int post_os(POST_ARGS);
48: static int post_prol(POST_ARGS);
49: static int post_sh(POST_ARGS);
1.26 kristaps 50: static int post_st(POST_ARGS);
1.1 kristaps 51: static int post_std(POST_ARGS);
52:
53: static int pre_bd(PRE_ARGS);
54: static int pre_dl(PRE_ARGS);
55:
56: const struct actions mdoc_actions[MDOC_MAX] = {
1.12 kristaps 57: { NULL, NULL }, /* Ap */
1.1 kristaps 58: { NULL, post_dd }, /* Dd */
59: { NULL, post_dt }, /* Dt */
60: { NULL, post_os }, /* Os */
61: { NULL, post_sh }, /* Sh */
62: { NULL, NULL }, /* Ss */
63: { NULL, NULL }, /* Pp */
64: { NULL, NULL }, /* D1 */
65: { pre_dl, post_display }, /* Dl */
66: { pre_bd, post_display }, /* Bd */
67: { NULL, NULL }, /* Ed */
68: { NULL, post_bl }, /* Bl */
69: { NULL, NULL }, /* El */
70: { NULL, NULL }, /* It */
71: { NULL, NULL }, /* Ad */
72: { NULL, NULL }, /* An */
73: { NULL, post_ar }, /* Ar */
1.19 kristaps 74: { NULL, NULL }, /* Cd */ /* FIXME: tabs are accepted! */
1.1 kristaps 75: { NULL, NULL }, /* Cm */
76: { NULL, NULL }, /* Dv */
77: { NULL, NULL }, /* Er */
78: { NULL, NULL }, /* Ev */
79: { NULL, post_std }, /* Ex */
80: { NULL, NULL }, /* Fa */
81: { NULL, NULL }, /* Fd */
82: { NULL, NULL }, /* Fl */
83: { NULL, NULL }, /* Fn */
84: { NULL, NULL }, /* Ft */
85: { NULL, NULL }, /* Ic */
86: { NULL, NULL }, /* In */
87: { NULL, NULL }, /* Li */
88: { NULL, NULL }, /* Nd */
89: { NULL, post_nm }, /* Nm */
90: { NULL, NULL }, /* Op */
91: { NULL, NULL }, /* Ot */
92: { NULL, NULL }, /* Pa */
93: { NULL, post_std }, /* Rv */
1.26 kristaps 94: { NULL, post_st }, /* St */
1.1 kristaps 95: { NULL, NULL }, /* Va */
96: { NULL, NULL }, /* Vt */
97: { NULL, NULL }, /* Xr */
98: { NULL, NULL }, /* %A */
99: { NULL, NULL }, /* %B */
100: { NULL, NULL }, /* %D */
101: { NULL, NULL }, /* %I */
102: { NULL, NULL }, /* %J */
103: { NULL, NULL }, /* %N */
104: { NULL, NULL }, /* %O */
105: { NULL, NULL }, /* %P */
106: { NULL, NULL }, /* %R */
107: { NULL, NULL }, /* %T */
108: { NULL, NULL }, /* %V */
109: { NULL, NULL }, /* Ac */
110: { NULL, NULL }, /* Ao */
111: { NULL, NULL }, /* Aq */
1.25 kristaps 112: { NULL, post_at }, /* At */
1.1 kristaps 113: { NULL, NULL }, /* Bc */
114: { NULL, NULL }, /* Bf */
115: { NULL, NULL }, /* Bo */
116: { NULL, NULL }, /* Bq */
117: { NULL, NULL }, /* Bsx */
118: { NULL, NULL }, /* Bx */
119: { NULL, NULL }, /* Db */
120: { NULL, NULL }, /* Dc */
121: { NULL, NULL }, /* Do */
122: { NULL, NULL }, /* Dq */
123: { NULL, NULL }, /* Ec */
124: { NULL, NULL }, /* Ef */
125: { NULL, NULL }, /* Em */
126: { NULL, NULL }, /* Eo */
127: { NULL, NULL }, /* Fx */
128: { NULL, NULL }, /* Ms */
129: { NULL, NULL }, /* No */
130: { NULL, NULL }, /* Ns */
131: { NULL, NULL }, /* Nx */
132: { NULL, NULL }, /* Ox */
133: { NULL, NULL }, /* Pc */
134: { NULL, NULL }, /* Pf */
135: { NULL, NULL }, /* Po */
136: { NULL, NULL }, /* Pq */
137: { NULL, NULL }, /* Qc */
138: { NULL, NULL }, /* Ql */
139: { NULL, NULL }, /* Qo */
140: { NULL, NULL }, /* Qq */
141: { NULL, NULL }, /* Re */
142: { NULL, NULL }, /* Rs */
143: { NULL, NULL }, /* Sc */
144: { NULL, NULL }, /* So */
145: { NULL, NULL }, /* Sq */
146: { NULL, NULL }, /* Sm */
147: { NULL, NULL }, /* Sx */
148: { NULL, NULL }, /* Sy */
149: { NULL, NULL }, /* Tn */
150: { NULL, NULL }, /* Ux */
151: { NULL, NULL }, /* Xc */
152: { NULL, NULL }, /* Xo */
153: { NULL, NULL }, /* Fo */
154: { NULL, NULL }, /* Fc */
155: { NULL, NULL }, /* Oo */
156: { NULL, NULL }, /* Oc */
157: { NULL, NULL }, /* Bk */
158: { NULL, NULL }, /* Ek */
159: { NULL, NULL }, /* Bt */
160: { NULL, NULL }, /* Hf */
161: { NULL, NULL }, /* Fr */
162: { NULL, NULL }, /* Ud */
1.27 kristaps 163: { NULL, post_lb }, /* Lb */
1.1 kristaps 164: { NULL, NULL }, /* Lp */
1.10 kristaps 165: { NULL, post_lk }, /* Lk */
1.1 kristaps 166: { NULL, NULL }, /* Mt */
167: { NULL, NULL }, /* Brq */
168: { NULL, NULL }, /* Bro */
169: { NULL, NULL }, /* Brc */
170: { NULL, NULL }, /* %C */
171: { NULL, NULL }, /* Es */
172: { NULL, NULL }, /* En */
173: { NULL, NULL }, /* Dx */
174: { NULL, NULL }, /* %Q */
175: };
176:
1.25 kristaps 177: static int concat(struct mdoc *, const struct mdoc_node *,
178: char *, size_t);
1.1 kristaps 179:
1.2 kristaps 180: #ifdef __linux__
1.25 kristaps 181: extern size_t strlcat(char *, const char *, size_t);
1.2 kristaps 182: #endif
183:
184:
1.1 kristaps 185: int
186: mdoc_action_pre(struct mdoc *m, const struct mdoc_node *n)
187: {
188:
189: switch (n->type) {
190: case (MDOC_ROOT):
1.2 kristaps 191: /* FALLTHROUGH */
1.1 kristaps 192: case (MDOC_TEXT):
1.2 kristaps 193: return(1);
194: default:
1.1 kristaps 195: break;
196: }
1.2 kristaps 197:
1.6 kristaps 198: if (NULL == mdoc_actions[n->tok].pre)
1.2 kristaps 199: return(1);
1.6 kristaps 200: return((*mdoc_actions[n->tok].pre)(m, n));
1.1 kristaps 201: }
202:
203:
204: int
205: mdoc_action_post(struct mdoc *m)
206: {
207:
208: if (MDOC_ACTED & m->last->flags)
209: return(1);
210: m->last->flags |= MDOC_ACTED;
211:
212: switch (m->last->type) {
213: case (MDOC_TEXT):
1.2 kristaps 214: /* FALLTHROUGH */
1.1 kristaps 215: case (MDOC_ROOT):
1.2 kristaps 216: return(1);
217: default:
1.1 kristaps 218: break;
219: }
1.2 kristaps 220:
221: if (NULL == mdoc_actions[m->last->tok].post)
222: return(1);
223: return((*mdoc_actions[m->last->tok].post)(m));
224: }
225:
226:
227: static int
228: concat(struct mdoc *m, const struct mdoc_node *n,
229: char *buf, size_t sz)
230: {
231:
232: for ( ; n; n = n->next) {
233: assert(MDOC_TEXT == n->type);
234: if (strlcat(buf, n->string, sz) >= sz)
1.23 kristaps 235: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 236: if (NULL == n->next)
237: continue;
238: if (strlcat(buf, " ", sz) >= sz)
1.23 kristaps 239: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 240: }
241:
1.1 kristaps 242: return(1);
243: }
244:
245:
246: static int
247: post_std(POST_ARGS)
248: {
249:
250: /*
251: * If '-std' is invoked without an argument, fill it in with our
252: * name (if it's been set).
253: */
254:
255: if (NULL == m->last->args)
256: return(1);
257: if (m->last->args->argv[0].sz)
258: return(1);
259:
260: assert(m->meta.name);
261:
262: m->last->args->argv[0].value = calloc(1, sizeof(char *));
263: if (NULL == m->last->args->argv[0].value)
1.23 kristaps 264: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 265:
266: m->last->args->argv[0].sz = 1;
1.2 kristaps 267: m->last->args->argv[0].value[0] = strdup(m->meta.name);
268: if (NULL == m->last->args->argv[0].value[0])
1.23 kristaps 269: return(mdoc_nerr(m, m->last, EMALLOC));
1.2 kristaps 270:
1.1 kristaps 271: return(1);
272: }
273:
274:
275: static int
276: post_nm(POST_ARGS)
277: {
278: char buf[64];
279:
280: if (m->meta.name)
281: return(1);
1.5 kristaps 282:
283: buf[0] = 0;
1.2 kristaps 284: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
285: return(0);
1.6 kristaps 286:
1.2 kristaps 287: if (NULL == (m->meta.name = strdup(buf)))
1.23 kristaps 288: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 289:
290: return(1);
291: }
292:
293:
294: static int
1.27 kristaps 295: post_lb(POST_ARGS)
296: {
297: const char *p;
298: char *buf;
299: size_t sz;
300:
1.28 ! kristaps 301: /*
! 302: * FIXME: this must be broken apart into a series of TEXT nodes,
! 303: * each containing a single word.
! 304: */
! 305:
1.27 kristaps 306: assert(MDOC_TEXT == m->last->child->type);
307: p = mdoc_a2lib(m->last->child->string);
308: if (NULL == p) {
309: sz = strlen(m->last->child->string) +
310: 2 + strlen("\\(lqlibrary\\(rq");
311: buf = malloc(sz);
312: if (NULL == buf)
313: return(mdoc_nerr(m, m->last, EMALLOC));
314: (void)snprintf(buf, sz, "library \\(lq%s\\(rq",
315: m->last->child->string);
316: free(m->last->child->string);
317: m->last->child->string = buf;
318: return(1);
319: }
320:
321: free(m->last->child->string);
322: m->last->child->string = strdup(p);
323: if (NULL == m->last->child->string)
324: return(mdoc_nerr(m, m->last, EMALLOC));
325: return(1);
326: }
327:
328:
329: static int
1.26 kristaps 330: post_st(POST_ARGS)
331: {
332: const char *p;
333:
1.28 ! kristaps 334: /*
! 335: * FIXME: this must be broken apart into a series of TEXT nodes,
! 336: * each containing a single word.
! 337: */
! 338:
1.26 kristaps 339: assert(MDOC_TEXT == m->last->child->type);
340: p = mdoc_a2st(m->last->child->string);
341: assert(p);
342: free(m->last->child->string);
343: m->last->child->string = strdup(p);
344: if (NULL == m->last->child->string)
345: return(mdoc_nerr(m, m->last, EMALLOC));
346: return(1);
347: }
348:
349:
350: static int
1.25 kristaps 351: post_at(POST_ARGS)
352: {
353: struct mdoc_node *n;
354: const char *p;
355:
1.28 ! kristaps 356: /*
! 357: * FIXME: this must be broken apart into a series of TEXT nodes,
! 358: * each containing a single word.
! 359: */
! 360:
1.25 kristaps 361: if (m->last->child) {
362: assert(MDOC_TEXT == m->last->child->type);
363: p = mdoc_a2att(m->last->child->string);
364: assert(p);
365: free(m->last->child->string);
366: m->last->child->string = strdup(p);
367: if (NULL == m->last->child->string)
368: return(mdoc_nerr(m, m->last, EMALLOC));
369: return(1);
370: }
371:
372: n = m->last;
373: m->next = MDOC_NEXT_CHILD;
374:
375: if ( ! mdoc_word_alloc(m, n->line, n->pos, "AT&T UNIX"))
376: return(0);
377:
378: m->last = n;
379: m->next = MDOC_NEXT_SIBLING;
380: return(1);
381: }
382:
383:
384: static int
1.1 kristaps 385: post_sh(POST_ARGS)
386: {
387: enum mdoc_sec sec;
388: char buf[64];
389:
390: /*
391: * We keep track of the current section /and/ the "named"
392: * section, which is one of the conventional ones, in order to
393: * check ordering.
394: */
395:
396: if (MDOC_HEAD != m->last->type)
397: return(1);
1.5 kristaps 398:
399: buf[0] = 0;
1.2 kristaps 400: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
401: return(0);
1.1 kristaps 402: if (SEC_CUSTOM != (sec = mdoc_atosec(buf)))
403: m->lastnamed = sec;
404:
405: switch ((m->lastsec = sec)) {
406: case (SEC_RETURN_VALUES):
407: /* FALLTHROUGH */
408: case (SEC_ERRORS):
409: switch (m->meta.msec) {
410: case (2):
411: /* FALLTHROUGH */
412: case (3):
413: /* FALLTHROUGH */
414: case (9):
415: break;
416: default:
1.23 kristaps 417: return(mdoc_nwarn(m, m->last, EBADSEC));
1.1 kristaps 418: }
419: break;
420: default:
421: break;
422: }
423: return(1);
424: }
425:
426:
427: static int
428: post_dt(POST_ARGS)
429: {
430: struct mdoc_node *n;
431: const char *cp;
432: char *ep;
433: long lval;
434:
435: if (m->meta.title)
436: free(m->meta.title);
437: if (m->meta.vol)
438: free(m->meta.vol);
439: if (m->meta.arch)
440: free(m->meta.arch);
441:
442: m->meta.title = m->meta.vol = m->meta.arch = NULL;
443: m->meta.msec = 0;
444:
445: /* Handles: `.Dt'
446: * --> title = unknown, volume = local, msec = 0, arch = NULL
447: */
448:
449: if (NULL == (n = m->last->child)) {
1.2 kristaps 450: if (NULL == (m->meta.title = strdup("unknown")))
1.23 kristaps 451: return(mdoc_nerr(m, m->last, EMALLOC));
1.2 kristaps 452: if (NULL == (m->meta.vol = strdup("local")))
1.23 kristaps 453: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 454: return(post_prol(m));
455: }
456:
457: /* Handles: `.Dt TITLE'
458: * --> title = TITLE, volume = local, msec = 0, arch = NULL
459: */
460:
1.2 kristaps 461: if (NULL == (m->meta.title = strdup(n->string)))
1.23 kristaps 462: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 463:
464: if (NULL == (n = n->next)) {
1.2 kristaps 465: if (NULL == (m->meta.vol = strdup("local")))
1.23 kristaps 466: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 467: return(post_prol(m));
468: }
469:
470: /* Handles: `.Dt TITLE SEC'
471: * --> title = TITLE, volume = SEC is msec ?
472: * format(msec) : SEC,
473: * msec = SEC is msec ? atoi(msec) : 0,
474: * arch = NULL
475: */
476:
477: cp = mdoc_a2msec(n->string);
478: if (cp) {
1.2 kristaps 479: if (NULL == (m->meta.vol = strdup(cp)))
1.23 kristaps 480: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 481: errno = 0;
482: lval = strtol(n->string, &ep, 10);
483: if (n->string[0] != '\0' && *ep == '\0')
484: m->meta.msec = (int)lval;
1.2 kristaps 485: } else if (NULL == (m->meta.vol = strdup(n->string)))
1.23 kristaps 486: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 487:
488: if (NULL == (n = n->next))
489: return(post_prol(m));
490:
491: /* Handles: `.Dt TITLE SEC VOL'
492: * --> title = TITLE, volume = VOL is vol ?
493: * format(VOL) :
494: * VOL is arch ? format(arch) :
495: * VOL
496: */
497:
498: cp = mdoc_a2vol(n->string);
499: if (cp) {
500: free(m->meta.vol);
1.2 kristaps 501: if (NULL == (m->meta.vol = strdup(cp)))
1.23 kristaps 502: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 503: n = n->next;
504: } else {
505: cp = mdoc_a2arch(n->string);
506: if (NULL == cp) {
507: free(m->meta.vol);
1.2 kristaps 508: if (NULL == (m->meta.vol = strdup(n->string)))
1.23 kristaps 509: return(mdoc_nerr(m, m->last, EMALLOC));
1.2 kristaps 510: } else if (NULL == (m->meta.arch = strdup(cp)))
1.23 kristaps 511: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 512: }
513:
514: /* Ignore any subsequent parameters... */
515:
516: return(post_prol(m));
517: }
518:
519:
520: static int
521: post_os(POST_ARGS)
522: {
523: char buf[64];
524: struct utsname utsname;
525:
526: if (m->meta.os)
527: free(m->meta.os);
1.4 kristaps 528:
529: buf[0] = 0;
1.2 kristaps 530: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
531: return(0);
1.1 kristaps 532:
533: if (0 == buf[0]) {
534: if (-1 == uname(&utsname))
1.23 kristaps 535: return(mdoc_nerr(m, m->last, EUTSNAME));
1.4 kristaps 536: if (strlcat(buf, utsname.sysname, 64) >= 64)
1.23 kristaps 537: return(mdoc_nerr(m, m->last, ETOOLONG));
1.2 kristaps 538: if (strlcat(buf, " ", 64) >= 64)
1.23 kristaps 539: return(mdoc_nerr(m, m->last, ETOOLONG));
1.2 kristaps 540: if (strlcat(buf, utsname.release, 64) >= 64)
1.23 kristaps 541: return(mdoc_nerr(m, m->last, ETOOLONG));
1.1 kristaps 542: }
543:
1.2 kristaps 544: if (NULL == (m->meta.os = strdup(buf)))
1.23 kristaps 545: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 546:
1.13 kristaps 547: m->flags |= MDOC_PBODY;
1.1 kristaps 548: return(post_prol(m));
549: }
550:
551:
552: /*
553: * Calculate the -width for a `Bl -tag' list if it hasn't been provided.
554: * Uses the first head macro.
555: */
556: static int
557: post_bl_tagwidth(struct mdoc *m)
558: {
559: struct mdoc_node *n;
560: int sz;
561: char buf[32];
562:
563: /*
564: * Use the text width, if a text node, or the default macro
565: * width if a macro.
566: */
567:
1.11 kristaps 568: n = m->last->body->child;
569: if (n) {
1.1 kristaps 570: assert(MDOC_BLOCK == n->type);
571: assert(MDOC_It == n->tok);
572: n = n->head->child;
573: }
574:
575: sz = 10; /* Default size. */
576:
577: if (n) {
578: if (MDOC_TEXT != n->type) {
579: if (0 == (sz = (int)mdoc_macro2len(n->tok)))
1.23 kristaps 580: if ( ! mdoc_nwarn(m, m->last, ENOWIDTH))
1.1 kristaps 581: return(0);
582: } else
583: sz = (int)strlen(n->string) + 1;
584: }
585:
1.2 kristaps 586: if (-1 == snprintf(buf, sizeof(buf), "%dn", sz))
1.23 kristaps 587: return(mdoc_nerr(m, m->last, ENUMFMT));
1.1 kristaps 588:
589: /*
590: * We have to dynamically add this to the macro's argument list.
591: * We're guaranteed that a MDOC_Width doesn't already exist.
592: */
593:
594: n = m->last;
595: assert(n->args);
1.2 kristaps 596: sz = (int)(n->args->argc)++;
1.1 kristaps 597:
1.2 kristaps 598: n->args->argv = realloc(n->args->argv,
1.1 kristaps 599: n->args->argc * sizeof(struct mdoc_argv));
600:
1.2 kristaps 601: if (NULL == n->args->argv)
1.23 kristaps 602: return(mdoc_nerr(m, m->last, EMALLOC));
1.2 kristaps 603:
1.1 kristaps 604: n->args->argv[sz].arg = MDOC_Width;
605: n->args->argv[sz].line = m->last->line;
606: n->args->argv[sz].pos = m->last->pos;
607: n->args->argv[sz].sz = 1;
608: n->args->argv[sz].value = calloc(1, sizeof(char *));
1.2 kristaps 609:
1.1 kristaps 610: if (NULL == n->args->argv[sz].value)
1.23 kristaps 611: return(mdoc_nerr(m, m->last, EMALLOC));
1.2 kristaps 612: if (NULL == (n->args->argv[sz].value[0] = strdup(buf)))
1.23 kristaps 613: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 614:
615: return(1);
616: }
617:
618:
619: static int
620: post_bl_width(struct mdoc *m)
621: {
622: size_t width;
623: int i, tok;
624: char buf[32];
625: char *p;
626:
627: if (NULL == m->last->args)
628: return(1);
629:
630: for (i = 0; i < (int)m->last->args->argc; i++)
631: if (MDOC_Width == m->last->args->argv[i].arg)
632: break;
633:
634: if (i == (int)m->last->args->argc)
635: return(1);
636: p = m->last->args->argv[i].value[0];
637:
638: /*
639: * If the value to -width is a macro, then we re-write it to be
640: * the macro's width as set in share/tmac/mdoc/doc-common.
641: */
642:
1.2 kristaps 643: if (0 == strcmp(p, "Ds"))
1.18 kristaps 644: width = 6;
1.3 kristaps 645: else if (MDOC_MAX == (tok = mdoc_hash_find(m->htab, p)))
1.1 kristaps 646: return(1);
647: else if (0 == (width = mdoc_macro2len(tok)))
1.23 kristaps 648: return(mdoc_nwarn(m, m->last, ENOWIDTH));
1.1 kristaps 649:
650: /* The value already exists: free and reallocate it. */
651:
1.2 kristaps 652: if (-1 == snprintf(buf, sizeof(buf), "%zun", width))
1.23 kristaps 653: return(mdoc_nerr(m, m->last, ENUMFMT));
1.1 kristaps 654:
655: free(m->last->args->argv[i].value[0]);
1.2 kristaps 656: m->last->args->argv[i].value[0] = strdup(buf);
657: if (NULL == m->last->args->argv[i].value[0])
1.23 kristaps 658: return(mdoc_nerr(m, m->last, EMALLOC));
1.1 kristaps 659:
660: return(1);
661: }
662:
663:
664: static int
1.14 kristaps 665: post_bl_head(POST_ARGS)
666: {
667: int i, c;
668: struct mdoc_node *n, *nn, *nnp;
669:
670: if (NULL == m->last->child)
671: return(1);
672:
673: n = m->last->parent;
674: assert(n->args);
675:
676: for (c = 0; c < (int)n->args->argc; c++)
677: if (MDOC_Column == n->args->argv[c].arg)
678: break;
679:
680: /* Only process -column. */
681:
682: if (c == (int)n->args->argc)
683: return(1);
684:
685: assert(0 == n->args->argv[c].sz);
686:
687: /*
688: * Accomodate for new-style groff column syntax. Shuffle the
689: * child nodes, all of which must be TEXT, as arguments for the
690: * column field. Then, delete the head children.
691: */
692:
1.17 kristaps 693: n->args->argv[c].sz = (size_t)m->last->nchild;
694: n->args->argv[c].value = malloc
695: ((size_t)m->last->nchild * sizeof(char *));
1.14 kristaps 696:
697: for (i = 0, nn = m->last->child; nn; i++) {
698: n->args->argv[c].value[i] = nn->string;
699: nn->string = NULL;
700: nnp = nn;
701: nn = nn->next;
702: mdoc_node_free(nnp);
703: }
704:
1.17 kristaps 705: m->last->nchild = 0;
1.14 kristaps 706: m->last->child = NULL;
1.17 kristaps 707:
1.14 kristaps 708: return(1);
709: }
710:
711:
712: static int
1.1 kristaps 713: post_bl(POST_ARGS)
714: {
715: int i, r, len;
716:
1.14 kristaps 717: if (MDOC_HEAD == m->last->type)
718: return(post_bl_head(m));
1.1 kristaps 719: if (MDOC_BLOCK != m->last->type)
720: return(1);
721:
722: /*
723: * These are fairly complicated, so we've broken them into two
724: * functions. post_bl_tagwidth() is called when a -tag is
725: * specified, but no -width (it must be guessed). The second
726: * when a -width is specified (macro indicators must be
727: * rewritten into real lengths).
728: */
729:
730: len = (int)(m->last->args ? m->last->args->argc : 0);
731:
732: for (r = i = 0; i < len; i++) {
733: if (MDOC_Tag == m->last->args->argv[i].arg)
734: r |= 1 << 0;
735: if (MDOC_Width == m->last->args->argv[i].arg)
736: r |= 1 << 1;
737: }
738:
739: if (r & (1 << 0) && ! (r & (1 << 1))) {
740: if ( ! post_bl_tagwidth(m))
741: return(0);
742: } else if (r & (1 << 1))
743: if ( ! post_bl_width(m))
744: return(0);
745:
746: return(1);
747: }
748:
749:
750: static int
1.10 kristaps 751: post_lk(POST_ARGS)
752: {
753: struct mdoc_node *n;
754:
755: if (m->last->child)
756: return(1);
757:
758: n = m->last;
759: m->next = MDOC_NEXT_CHILD;
1.24 kristaps 760:
761: /* XXX: this isn't documented anywhere! */
1.25 kristaps 762: if ( ! mdoc_word_alloc(m, m->last->line, m->last->pos, "~"))
1.10 kristaps 763: return(0);
764:
765: m->last = n;
766: m->next = MDOC_NEXT_SIBLING;
767: return(1);
768: }
769:
770:
771: static int
1.1 kristaps 772: post_ar(POST_ARGS)
773: {
774: struct mdoc_node *n;
775:
776: if (m->last->child)
777: return(1);
778:
779: n = m->last;
780: m->next = MDOC_NEXT_CHILD;
1.25 kristaps 781: if ( ! mdoc_word_alloc(m, m->last->line, m->last->pos, "file"))
1.1 kristaps 782: return(0);
783: m->next = MDOC_NEXT_SIBLING;
1.25 kristaps 784: if ( ! mdoc_word_alloc(m, m->last->line, m->last->pos, "..."))
1.1 kristaps 785: return(0);
786:
787: m->last = n;
788: m->next = MDOC_NEXT_SIBLING;
789: return(1);
790: }
791:
792:
793: static int
794: post_dd(POST_ARGS)
795: {
796: char buf[64];
797:
1.5 kristaps 798: buf[0] = 0;
1.2 kristaps 799: if ( ! concat(m, m->last->child, buf, sizeof(buf)))
800: return(0);
1.1 kristaps 801:
802: if (0 == (m->meta.date = mdoc_atotime(buf))) {
1.23 kristaps 803: if ( ! mdoc_nwarn(m, m->last, EBADDATE))
1.1 kristaps 804: return(0);
805: m->meta.date = time(NULL);
806: }
807:
808: return(post_prol(m));
809: }
810:
811:
812: static int
813: post_prol(POST_ARGS)
814: {
815: struct mdoc_node *n;
816:
817: /*
818: * The end document shouldn't have the prologue macros as part
819: * of the syntax tree (they encompass only meta-data).
820: */
821:
822: if (m->last->parent->child == m->last)
823: m->last->parent->child = m->last->prev;
824: if (m->last->prev)
825: m->last->prev->next = NULL;
826:
827: n = m->last;
828: assert(NULL == m->last->next);
829:
830: if (m->last->prev) {
831: m->last = m->last->prev;
832: m->next = MDOC_NEXT_SIBLING;
833: } else {
834: m->last = m->last->parent;
835: m->next = MDOC_NEXT_CHILD;
836: }
837:
838: mdoc_node_freelist(n);
839: return(1);
840: }
841:
842:
843: static int
844: pre_dl(PRE_ARGS)
845: {
846:
1.16 kristaps 847: if (MDOC_BODY == n->type)
848: m->flags |= MDOC_LITERAL;
1.1 kristaps 849: return(1);
850: }
851:
852:
853: static int
854: pre_bd(PRE_ARGS)
855: {
856: int i;
857:
858: if (MDOC_BODY != n->type)
859: return(1);
860:
1.2 kristaps 861: /* Enter literal context if `Bd -literal' or * -unfilled'. */
1.1 kristaps 862:
1.2 kristaps 863: for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
1.1 kristaps 864: if (MDOC_Literal == n->args->argv[i].arg)
865: break;
866: else if (MDOC_Unfilled == n->args->argv[i].arg)
867: break;
868:
869: if (i < (int)n->args->argc)
870: m->flags |= MDOC_LITERAL;
871:
872: return(1);
873: }
874:
875:
876: static int
877: post_display(POST_ARGS)
878: {
879:
880: if (MDOC_BODY == m->last->type)
881: m->flags &= ~MDOC_LITERAL;
882: return(1);
883: }
884:
885:
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