Annotation of mandoc/mdoc_action.c, Revision 1.44
1.44 ! kristaps 1: /* $Id: mdoc_action.c,v 1.43 2009/10/24 05:52:13 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: */
1.44 ! kristaps 17: #ifndef OSNAME
1.1 kristaps 18: #include <sys/utsname.h>
1.44 ! kristaps 19: #endif
1.1 kristaps 20:
21: #include <assert.h>
22: #include <errno.h>
23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <string.h>
1.44 ! kristaps 26: #include <time.h>
1.1 kristaps 27:
28: #include "libmdoc.h"
29:
1.35 kristaps 30: #define POST_ARGS struct mdoc *m, struct mdoc_node *n
1.1 kristaps 31: #define PRE_ARGS struct mdoc *m, const struct mdoc_node *n
32:
33: struct actions {
34: int (*pre)(PRE_ARGS);
35: int (*post)(POST_ARGS);
36: };
37:
1.39 kristaps 38: static int concat(struct mdoc *,
39: const struct mdoc_node *,
40: char *, size_t);
41: static inline int order_rs(int);
42:
43: #ifdef __linux__
44: extern size_t strlcat(char *, const char *, size_t);
45: #endif
46:
1.1 kristaps 47: static int post_ar(POST_ARGS);
1.25 kristaps 48: static int post_at(POST_ARGS);
1.1 kristaps 49: static int post_bl(POST_ARGS);
1.14 kristaps 50: static int post_bl_head(POST_ARGS);
1.25 kristaps 51: static int post_bl_tagwidth(POST_ARGS);
1.1 kristaps 52: static int post_bl_width(POST_ARGS);
53: static int post_dd(POST_ARGS);
54: static int post_display(POST_ARGS);
55: static int post_dt(POST_ARGS);
1.27 kristaps 56: static int post_lb(POST_ARGS);
1.1 kristaps 57: static int post_nm(POST_ARGS);
58: static int post_os(POST_ARGS);
59: static int post_prol(POST_ARGS);
1.39 kristaps 60: static int post_rs(POST_ARGS);
1.1 kristaps 61: static int post_sh(POST_ARGS);
1.26 kristaps 62: static int post_st(POST_ARGS);
1.1 kristaps 63: static int post_std(POST_ARGS);
1.31 kristaps 64: static int post_tilde(POST_ARGS);
1.1 kristaps 65:
66: static int pre_bd(PRE_ARGS);
1.38 kristaps 67: static int pre_bl(PRE_ARGS);
1.1 kristaps 68: static int pre_dl(PRE_ARGS);
1.38 kristaps 69: static int pre_offset(PRE_ARGS);
1.1 kristaps 70:
1.37 kristaps 71: static const struct actions mdoc_actions[MDOC_MAX] = {
1.12 kristaps 72: { NULL, NULL }, /* Ap */
1.1 kristaps 73: { NULL, post_dd }, /* Dd */
74: { NULL, post_dt }, /* Dt */
75: { NULL, post_os }, /* Os */
76: { NULL, post_sh }, /* Sh */
77: { NULL, NULL }, /* Ss */
78: { NULL, NULL }, /* Pp */
79: { NULL, NULL }, /* D1 */
80: { pre_dl, post_display }, /* Dl */
81: { pre_bd, post_display }, /* Bd */
82: { NULL, NULL }, /* Ed */
1.38 kristaps 83: { pre_bl, post_bl }, /* Bl */
1.1 kristaps 84: { NULL, NULL }, /* El */
85: { NULL, NULL }, /* It */
86: { NULL, NULL }, /* Ad */
87: { NULL, NULL }, /* An */
88: { NULL, post_ar }, /* Ar */
1.35 kristaps 89: { NULL, NULL }, /* Cd */
1.1 kristaps 90: { NULL, NULL }, /* Cm */
91: { NULL, NULL }, /* Dv */
92: { NULL, NULL }, /* Er */
93: { NULL, NULL }, /* Ev */
94: { NULL, post_std }, /* Ex */
95: { NULL, NULL }, /* Fa */
96: { NULL, NULL }, /* Fd */
97: { NULL, NULL }, /* Fl */
98: { NULL, NULL }, /* Fn */
99: { NULL, NULL }, /* Ft */
100: { NULL, NULL }, /* Ic */
101: { NULL, NULL }, /* In */
102: { NULL, NULL }, /* Li */
103: { NULL, NULL }, /* Nd */
104: { NULL, post_nm }, /* Nm */
105: { NULL, NULL }, /* Op */
106: { NULL, NULL }, /* Ot */
1.31 kristaps 107: { NULL, post_tilde }, /* Pa */
1.1 kristaps 108: { NULL, post_std }, /* Rv */
1.26 kristaps 109: { NULL, post_st }, /* St */
1.1 kristaps 110: { NULL, NULL }, /* Va */
111: { NULL, NULL }, /* Vt */
112: { NULL, NULL }, /* Xr */
113: { NULL, NULL }, /* %A */
114: { NULL, NULL }, /* %B */
115: { NULL, NULL }, /* %D */
116: { NULL, NULL }, /* %I */
117: { NULL, NULL }, /* %J */
118: { NULL, NULL }, /* %N */
119: { NULL, NULL }, /* %O */
120: { NULL, NULL }, /* %P */
121: { NULL, NULL }, /* %R */
122: { NULL, NULL }, /* %T */
123: { NULL, NULL }, /* %V */
124: { NULL, NULL }, /* Ac */
125: { NULL, NULL }, /* Ao */
126: { NULL, NULL }, /* Aq */
1.25 kristaps 127: { NULL, post_at }, /* At */
1.1 kristaps 128: { NULL, NULL }, /* Bc */
129: { NULL, NULL }, /* Bf */
130: { NULL, NULL }, /* Bo */
131: { NULL, NULL }, /* Bq */
132: { NULL, NULL }, /* Bsx */
133: { NULL, NULL }, /* Bx */
134: { NULL, NULL }, /* Db */
135: { NULL, NULL }, /* Dc */
136: { NULL, NULL }, /* Do */
137: { NULL, NULL }, /* Dq */
138: { NULL, NULL }, /* Ec */
139: { NULL, NULL }, /* Ef */
140: { NULL, NULL }, /* Em */
141: { NULL, NULL }, /* Eo */
142: { NULL, NULL }, /* Fx */
143: { NULL, NULL }, /* Ms */
144: { NULL, NULL }, /* No */
145: { NULL, NULL }, /* Ns */
146: { NULL, NULL }, /* Nx */
147: { NULL, NULL }, /* Ox */
148: { NULL, NULL }, /* Pc */
149: { NULL, NULL }, /* Pf */
150: { NULL, NULL }, /* Po */
151: { NULL, NULL }, /* Pq */
152: { NULL, NULL }, /* Qc */
153: { NULL, NULL }, /* Ql */
154: { NULL, NULL }, /* Qo */
155: { NULL, NULL }, /* Qq */
156: { NULL, NULL }, /* Re */
1.39 kristaps 157: { NULL, post_rs }, /* Rs */
1.1 kristaps 158: { NULL, NULL }, /* Sc */
159: { NULL, NULL }, /* So */
160: { NULL, NULL }, /* Sq */
161: { NULL, NULL }, /* Sm */
162: { NULL, NULL }, /* Sx */
163: { NULL, NULL }, /* Sy */
164: { NULL, NULL }, /* Tn */
165: { NULL, NULL }, /* Ux */
166: { NULL, NULL }, /* Xc */
167: { NULL, NULL }, /* Xo */
168: { NULL, NULL }, /* Fo */
169: { NULL, NULL }, /* Fc */
170: { NULL, NULL }, /* Oo */
171: { NULL, NULL }, /* Oc */
172: { NULL, NULL }, /* Bk */
173: { NULL, NULL }, /* Ek */
174: { NULL, NULL }, /* Bt */
175: { NULL, NULL }, /* Hf */
176: { NULL, NULL }, /* Fr */
177: { NULL, NULL }, /* Ud */
1.27 kristaps 178: { NULL, post_lb }, /* Lb */
1.1 kristaps 179: { NULL, NULL }, /* Lp */
1.44 ! kristaps 180: { NULL, NULL }, /* Lk */
1.1 kristaps 181: { NULL, NULL }, /* Mt */
182: { NULL, NULL }, /* Brq */
183: { NULL, NULL }, /* Bro */
184: { NULL, NULL }, /* Brc */
185: { NULL, NULL }, /* %C */
186: { NULL, NULL }, /* Es */
187: { NULL, NULL }, /* En */
188: { NULL, NULL }, /* Dx */
189: { NULL, NULL }, /* %Q */
1.30 kristaps 190: { NULL, NULL }, /* br */
191: { NULL, NULL }, /* sp */
1.43 kristaps 192: { NULL, NULL }, /* %U */
1.1 kristaps 193: };
194:
1.39 kristaps 195: #define RSORD_MAX 13
1.1 kristaps 196:
1.39 kristaps 197: static const int rsord[RSORD_MAX] = {
198: MDOC__A,
199: MDOC__T,
200: MDOC__B,
201: MDOC__I,
202: MDOC__J,
203: MDOC__R,
204: MDOC__N,
205: MDOC__V,
206: MDOC__P,
207: MDOC__Q,
208: MDOC__D,
209: MDOC__O,
210: MDOC__C
211: };
1.2 kristaps 212:
213:
1.1 kristaps 214: int
215: mdoc_action_pre(struct mdoc *m, const struct mdoc_node *n)
216: {
217:
218: switch (n->type) {
219: case (MDOC_ROOT):
1.2 kristaps 220: /* FALLTHROUGH */
1.1 kristaps 221: case (MDOC_TEXT):
1.2 kristaps 222: return(1);
223: default:
1.1 kristaps 224: break;
225: }
1.2 kristaps 226:
1.6 kristaps 227: if (NULL == mdoc_actions[n->tok].pre)
1.2 kristaps 228: return(1);
1.6 kristaps 229: return((*mdoc_actions[n->tok].pre)(m, n));
1.1 kristaps 230: }
231:
232:
233: int
234: mdoc_action_post(struct mdoc *m)
235: {
236:
237: if (MDOC_ACTED & m->last->flags)
238: return(1);
239: m->last->flags |= MDOC_ACTED;
240:
241: switch (m->last->type) {
242: case (MDOC_TEXT):
1.2 kristaps 243: /* FALLTHROUGH */
1.1 kristaps 244: case (MDOC_ROOT):
1.2 kristaps 245: return(1);
246: default:
1.1 kristaps 247: break;
248: }
1.2 kristaps 249:
250: if (NULL == mdoc_actions[m->last->tok].post)
251: return(1);
1.35 kristaps 252: return((*mdoc_actions[m->last->tok].post)(m, m->last));
1.2 kristaps 253: }
254:
255:
256: static int
257: concat(struct mdoc *m, const struct mdoc_node *n,
258: char *buf, size_t sz)
259: {
260:
261: for ( ; n; n = n->next) {
262: assert(MDOC_TEXT == n->type);
263: if (strlcat(buf, n->string, sz) >= sz)
1.23 kristaps 264: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 265: if (NULL == n->next)
266: continue;
267: if (strlcat(buf, " ", sz) >= sz)
1.23 kristaps 268: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 269: }
270:
1.1 kristaps 271: return(1);
272: }
273:
274:
275: static int
276: post_std(POST_ARGS)
277: {
1.35 kristaps 278: struct mdoc_node *nn;
1.1 kristaps 279:
1.35 kristaps 280: if (n->child)
1.1 kristaps 281: return(1);
1.35 kristaps 282:
283: nn = n;
284: m->next = MDOC_NEXT_CHILD;
1.1 kristaps 285: assert(m->meta.name);
1.35 kristaps 286: if ( ! mdoc_word_alloc(m, n->line, n->pos, m->meta.name))
287: return(0);
288: m->last = nn;
1.2 kristaps 289:
1.1 kristaps 290: return(1);
291: }
292:
293:
294: static int
295: post_nm(POST_ARGS)
296: {
297: char buf[64];
298:
299: if (m->meta.name)
300: return(1);
1.5 kristaps 301:
302: buf[0] = 0;
1.35 kristaps 303: if ( ! concat(m, n->child, buf, sizeof(buf)))
1.2 kristaps 304: return(0);
305: if (NULL == (m->meta.name = strdup(buf)))
1.35 kristaps 306: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 307:
308: return(1);
309: }
310:
311:
312: static int
1.27 kristaps 313: post_lb(POST_ARGS)
314: {
315: const char *p;
316: char *buf;
317: size_t sz;
318:
1.35 kristaps 319: assert(MDOC_TEXT == n->child->type);
320: p = mdoc_a2lib(n->child->string);
1.27 kristaps 321: if (NULL == p) {
1.35 kristaps 322: sz = strlen(n->child->string) +
1.27 kristaps 323: 2 + strlen("\\(lqlibrary\\(rq");
324: buf = malloc(sz);
325: if (NULL == buf)
1.35 kristaps 326: return(mdoc_nerr(m, n, EMALLOC));
1.27 kristaps 327: (void)snprintf(buf, sz, "library \\(lq%s\\(rq",
1.35 kristaps 328: n->child->string);
329: free(n->child->string);
330: n->child->string = buf;
1.27 kristaps 331: return(1);
332: }
333:
1.35 kristaps 334: free(n->child->string);
335: n->child->string = strdup(p);
336: if (NULL == n->child->string)
337: return(mdoc_nerr(m, n, EMALLOC));
338:
1.27 kristaps 339: return(1);
340: }
341:
342:
343: static int
1.26 kristaps 344: post_st(POST_ARGS)
345: {
346: const char *p;
347:
1.35 kristaps 348: assert(MDOC_TEXT == n->child->type);
349: p = mdoc_a2st(n->child->string);
1.26 kristaps 350: assert(p);
1.35 kristaps 351: free(n->child->string);
352: n->child->string = strdup(p);
353: if (NULL == n->child->string)
354: return(mdoc_nerr(m, n, EMALLOC));
355:
1.26 kristaps 356: return(1);
357: }
358:
359:
360: static int
1.25 kristaps 361: post_at(POST_ARGS)
362: {
1.35 kristaps 363: struct mdoc_node *nn;
364: const char *p;
1.25 kristaps 365:
1.35 kristaps 366: if (n->child) {
367: assert(MDOC_TEXT == n->child->type);
368: p = mdoc_a2att(n->child->string);
1.25 kristaps 369: assert(p);
1.35 kristaps 370: free(n->child->string);
371: n->child->string = strdup(p);
372: if (NULL == n->child->string)
373: return(mdoc_nerr(m, n, EMALLOC));
1.25 kristaps 374: return(1);
375: }
376:
1.35 kristaps 377: nn = n;
1.25 kristaps 378: m->next = MDOC_NEXT_CHILD;
379:
1.35 kristaps 380: if ( ! mdoc_word_alloc(m, nn->line, nn->pos, "AT&T UNIX"))
1.25 kristaps 381: return(0);
1.35 kristaps 382: m->last = nn;
1.25 kristaps 383:
384: return(1);
385: }
386:
387:
388: static int
1.1 kristaps 389: post_sh(POST_ARGS)
390: {
391: enum mdoc_sec sec;
392: char buf[64];
393:
394: /*
395: * We keep track of the current section /and/ the "named"
396: * section, which is one of the conventional ones, in order to
397: * check ordering.
398: */
399:
1.35 kristaps 400: if (MDOC_HEAD != n->type)
1.1 kristaps 401: return(1);
1.5 kristaps 402:
403: buf[0] = 0;
1.35 kristaps 404: if ( ! concat(m, n->child, buf, sizeof(buf)))
1.2 kristaps 405: return(0);
1.1 kristaps 406: if (SEC_CUSTOM != (sec = mdoc_atosec(buf)))
407: m->lastnamed = sec;
408:
409: switch ((m->lastsec = sec)) {
410: case (SEC_RETURN_VALUES):
411: /* FALLTHROUGH */
412: case (SEC_ERRORS):
413: switch (m->meta.msec) {
414: case (2):
415: /* FALLTHROUGH */
416: case (3):
417: /* FALLTHROUGH */
418: case (9):
419: break;
420: default:
1.35 kristaps 421: return(mdoc_nwarn(m, n, EBADSEC));
1.1 kristaps 422: }
423: break;
424: default:
425: break;
426: }
427: return(1);
428: }
429:
430:
431: static int
432: post_dt(POST_ARGS)
433: {
1.35 kristaps 434: struct mdoc_node *nn;
1.1 kristaps 435: const char *cp;
436: char *ep;
437: long lval;
438:
439: if (m->meta.title)
440: free(m->meta.title);
441: if (m->meta.vol)
442: free(m->meta.vol);
443: if (m->meta.arch)
444: free(m->meta.arch);
445:
446: m->meta.title = m->meta.vol = m->meta.arch = NULL;
447: m->meta.msec = 0;
448:
449: /* Handles: `.Dt'
450: * --> title = unknown, volume = local, msec = 0, arch = NULL
451: */
452:
1.35 kristaps 453: if (NULL == (nn = n->child)) {
1.2 kristaps 454: if (NULL == (m->meta.title = strdup("unknown")))
1.35 kristaps 455: return(mdoc_nerr(m, n, EMALLOC));
1.2 kristaps 456: if (NULL == (m->meta.vol = strdup("local")))
1.35 kristaps 457: return(mdoc_nerr(m, n, EMALLOC));
458: return(post_prol(m, n));
1.1 kristaps 459: }
460:
461: /* Handles: `.Dt TITLE'
462: * --> title = TITLE, volume = local, msec = 0, arch = NULL
463: */
464:
1.35 kristaps 465: if (NULL == (m->meta.title = strdup(nn->string)))
466: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 467:
1.35 kristaps 468: if (NULL == (nn = nn->next)) {
1.2 kristaps 469: if (NULL == (m->meta.vol = strdup("local")))
1.35 kristaps 470: return(mdoc_nerr(m, n, EMALLOC));
471: return(post_prol(m, n));
1.1 kristaps 472: }
473:
474: /* Handles: `.Dt TITLE SEC'
475: * --> title = TITLE, volume = SEC is msec ?
476: * format(msec) : SEC,
477: * msec = SEC is msec ? atoi(msec) : 0,
478: * arch = NULL
479: */
480:
1.35 kristaps 481: cp = mdoc_a2msec(nn->string);
1.1 kristaps 482: if (cp) {
1.2 kristaps 483: if (NULL == (m->meta.vol = strdup(cp)))
1.35 kristaps 484: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 485: errno = 0;
1.35 kristaps 486: lval = strtol(nn->string, &ep, 10);
487: if (nn->string[0] != '\0' && *ep == '\0')
1.1 kristaps 488: m->meta.msec = (int)lval;
1.35 kristaps 489: } else if (NULL == (m->meta.vol = strdup(nn->string)))
490: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 491:
1.35 kristaps 492: if (NULL == (nn = nn->next))
493: return(post_prol(m, n));
1.1 kristaps 494:
495: /* Handles: `.Dt TITLE SEC VOL'
496: * --> title = TITLE, volume = VOL is vol ?
497: * format(VOL) :
498: * VOL is arch ? format(arch) :
499: * VOL
500: */
501:
1.35 kristaps 502: cp = mdoc_a2vol(nn->string);
1.1 kristaps 503: if (cp) {
504: free(m->meta.vol);
1.2 kristaps 505: if (NULL == (m->meta.vol = strdup(cp)))
1.35 kristaps 506: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 507: } else {
1.35 kristaps 508: cp = mdoc_a2arch(nn->string);
1.1 kristaps 509: if (NULL == cp) {
510: free(m->meta.vol);
1.35 kristaps 511: if (NULL == (m->meta.vol = strdup(nn->string)))
512: return(mdoc_nerr(m, n, EMALLOC));
1.2 kristaps 513: } else if (NULL == (m->meta.arch = strdup(cp)))
1.35 kristaps 514: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 515: }
516:
517: /* Ignore any subsequent parameters... */
518:
1.35 kristaps 519: return(post_prol(m, n));
1.1 kristaps 520: }
521:
522:
523: static int
524: post_os(POST_ARGS)
525: {
526: char buf[64];
1.42 kristaps 527: #ifndef OSNAME
1.1 kristaps 528: struct utsname utsname;
1.42 kristaps 529: #endif
530:
531: /*
532: * Setting OSNAME to be the name of the target operating system,
533: * e.g., "OpenBSD 4.4", will result in the compile-time constant
534: * by supplied instead of the value in uname().
535: */
1.1 kristaps 536:
537: if (m->meta.os)
538: free(m->meta.os);
1.4 kristaps 539:
540: buf[0] = 0;
1.35 kristaps 541: if ( ! concat(m, n->child, buf, sizeof(buf)))
1.2 kristaps 542: return(0);
1.1 kristaps 543:
544: if (0 == buf[0]) {
1.42 kristaps 545: #ifdef OSNAME
546: if (strlcat(buf, OSNAME, 64) >= 64)
547: return(mdoc_nerr(m, n, EUTSNAME));
548: #else
1.1 kristaps 549: if (-1 == uname(&utsname))
1.35 kristaps 550: return(mdoc_nerr(m, n, EUTSNAME));
1.4 kristaps 551: if (strlcat(buf, utsname.sysname, 64) >= 64)
1.35 kristaps 552: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 553: if (strlcat(buf, " ", 64) >= 64)
1.35 kristaps 554: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 555: if (strlcat(buf, utsname.release, 64) >= 64)
1.35 kristaps 556: return(mdoc_nerr(m, n, ETOOLONG));
1.42 kristaps 557: #endif
1.1 kristaps 558: }
559:
1.2 kristaps 560: if (NULL == (m->meta.os = strdup(buf)))
1.35 kristaps 561: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 562:
1.35 kristaps 563: return(post_prol(m, n));
1.1 kristaps 564: }
565:
566:
567: /*
568: * Calculate the -width for a `Bl -tag' list if it hasn't been provided.
569: * Uses the first head macro.
570: */
571: static int
1.35 kristaps 572: post_bl_tagwidth(POST_ARGS)
1.1 kristaps 573: {
1.35 kristaps 574: struct mdoc_node *nn;
1.1 kristaps 575: int sz;
576: char buf[32];
577:
578: /*
579: * Use the text width, if a text node, or the default macro
580: * width if a macro.
581: */
582:
1.35 kristaps 583: nn = n->body->child;
584: if (nn) {
585: assert(MDOC_BLOCK == nn->type);
586: assert(MDOC_It == nn->tok);
587: nn = nn->head->child;
1.1 kristaps 588: }
589:
590: sz = 10; /* Default size. */
591:
1.35 kristaps 592: if (nn) {
593: if (MDOC_TEXT != nn->type) {
594: if (0 == (sz = (int)mdoc_macro2len(nn->tok)))
595: if ( ! mdoc_nwarn(m, n, ENOWIDTH))
1.1 kristaps 596: return(0);
597: } else
1.35 kristaps 598: sz = (int)strlen(nn->string) + 1;
1.1 kristaps 599: }
600:
1.2 kristaps 601: if (-1 == snprintf(buf, sizeof(buf), "%dn", sz))
1.35 kristaps 602: return(mdoc_nerr(m, n, ENUMFMT));
1.1 kristaps 603:
604: /*
605: * We have to dynamically add this to the macro's argument list.
606: * We're guaranteed that a MDOC_Width doesn't already exist.
607: */
608:
1.35 kristaps 609: nn = n;
610: assert(nn->args);
611: sz = (int)(nn->args->argc)++;
1.1 kristaps 612:
1.35 kristaps 613: nn->args->argv = realloc(nn->args->argv,
614: nn->args->argc * sizeof(struct mdoc_argv));
1.1 kristaps 615:
1.35 kristaps 616: if (NULL == nn->args->argv)
617: return(mdoc_nerr(m, n, EMALLOC));
1.2 kristaps 618:
1.35 kristaps 619: nn->args->argv[sz].arg = MDOC_Width;
620: nn->args->argv[sz].line = n->line;
621: nn->args->argv[sz].pos = n->pos;
622: nn->args->argv[sz].sz = 1;
623: nn->args->argv[sz].value = calloc(1, sizeof(char *));
1.2 kristaps 624:
1.35 kristaps 625: if (NULL == nn->args->argv[sz].value)
626: return(mdoc_nerr(m, n, EMALLOC));
627: if (NULL == (nn->args->argv[sz].value[0] = strdup(buf)))
628: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 629:
630: return(1);
631: }
632:
633:
634: static int
1.35 kristaps 635: post_bl_width(POST_ARGS)
1.1 kristaps 636: {
637: size_t width;
638: int i, tok;
639: char buf[32];
640: char *p;
641:
1.35 kristaps 642: if (NULL == n->args)
1.1 kristaps 643: return(1);
644:
1.35 kristaps 645: for (i = 0; i < (int)n->args->argc; i++)
646: if (MDOC_Width == n->args->argv[i].arg)
1.1 kristaps 647: break;
648:
1.35 kristaps 649: if (i == (int)n->args->argc)
1.1 kristaps 650: return(1);
1.35 kristaps 651: p = n->args->argv[i].value[0];
1.1 kristaps 652:
653: /*
654: * If the value to -width is a macro, then we re-write it to be
655: * the macro's width as set in share/tmac/mdoc/doc-common.
656: */
657:
1.2 kristaps 658: if (0 == strcmp(p, "Ds"))
1.18 kristaps 659: width = 6;
1.36 kristaps 660: else if (MDOC_MAX == (tok = mdoc_hash_find(p)))
1.1 kristaps 661: return(1);
662: else if (0 == (width = mdoc_macro2len(tok)))
1.35 kristaps 663: return(mdoc_nwarn(m, n, ENOWIDTH));
1.1 kristaps 664:
665: /* The value already exists: free and reallocate it. */
666:
1.2 kristaps 667: if (-1 == snprintf(buf, sizeof(buf), "%zun", width))
1.35 kristaps 668: return(mdoc_nerr(m, n, ENUMFMT));
1.1 kristaps 669:
1.35 kristaps 670: free(n->args->argv[i].value[0]);
671: n->args->argv[i].value[0] = strdup(buf);
672: if (NULL == n->args->argv[i].value[0])
673: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 674:
675: return(1);
676: }
677:
678:
1.35 kristaps 679: /* ARGSUSED */
1.1 kristaps 680: static int
1.14 kristaps 681: post_bl_head(POST_ARGS)
682: {
683: int i, c;
1.35 kristaps 684: struct mdoc_node *np, *nn, *nnp;
1.14 kristaps 685:
1.35 kristaps 686: if (NULL == n->child)
1.14 kristaps 687: return(1);
688:
1.35 kristaps 689: np = n->parent;
690: assert(np->args);
1.14 kristaps 691:
1.35 kristaps 692: for (c = 0; c < (int)np->args->argc; c++)
693: if (MDOC_Column == np->args->argv[c].arg)
1.14 kristaps 694: break;
695:
696: /* Only process -column. */
697:
1.35 kristaps 698: if (c == (int)np->args->argc)
1.14 kristaps 699: return(1);
700:
1.35 kristaps 701: assert(0 == np->args->argv[c].sz);
1.14 kristaps 702:
703: /*
704: * Accomodate for new-style groff column syntax. Shuffle the
705: * child nodes, all of which must be TEXT, as arguments for the
706: * column field. Then, delete the head children.
707: */
708:
1.35 kristaps 709: np->args->argv[c].sz = (size_t)n->nchild;
710: np->args->argv[c].value = malloc
711: ((size_t)n->nchild * sizeof(char *));
1.14 kristaps 712:
1.35 kristaps 713: for (i = 0, nn = n->child; nn; i++) {
714: np->args->argv[c].value[i] = nn->string;
1.14 kristaps 715: nn->string = NULL;
716: nnp = nn;
717: nn = nn->next;
718: mdoc_node_free(nnp);
719: }
720:
1.35 kristaps 721: n->nchild = 0;
722: n->child = NULL;
1.17 kristaps 723:
1.14 kristaps 724: return(1);
725: }
726:
727:
728: static int
1.1 kristaps 729: post_bl(POST_ARGS)
730: {
731: int i, r, len;
732:
1.35 kristaps 733: if (MDOC_HEAD == n->type)
734: return(post_bl_head(m, n));
735: if (MDOC_BLOCK != n->type)
1.1 kristaps 736: return(1);
737:
738: /*
739: * These are fairly complicated, so we've broken them into two
740: * functions. post_bl_tagwidth() is called when a -tag is
741: * specified, but no -width (it must be guessed). The second
742: * when a -width is specified (macro indicators must be
743: * rewritten into real lengths).
744: */
745:
1.35 kristaps 746: len = (int)(n->args ? n->args->argc : 0);
1.1 kristaps 747:
748: for (r = i = 0; i < len; i++) {
1.35 kristaps 749: if (MDOC_Tag == n->args->argv[i].arg)
1.1 kristaps 750: r |= 1 << 0;
1.35 kristaps 751: if (MDOC_Width == n->args->argv[i].arg)
1.1 kristaps 752: r |= 1 << 1;
753: }
754:
755: if (r & (1 << 0) && ! (r & (1 << 1))) {
1.35 kristaps 756: if ( ! post_bl_tagwidth(m, n))
1.1 kristaps 757: return(0);
758: } else if (r & (1 << 1))
1.35 kristaps 759: if ( ! post_bl_width(m, n))
1.1 kristaps 760: return(0);
761:
762: return(1);
763: }
764:
765:
766: static int
1.31 kristaps 767: post_tilde(POST_ARGS)
1.10 kristaps 768: {
1.35 kristaps 769: struct mdoc_node *np;
1.10 kristaps 770:
1.35 kristaps 771: if (n->child)
1.10 kristaps 772: return(1);
773:
1.35 kristaps 774: np = n;
1.10 kristaps 775: m->next = MDOC_NEXT_CHILD;
1.24 kristaps 776:
1.35 kristaps 777: if ( ! mdoc_word_alloc(m, n->line, n->pos, "~"))
1.10 kristaps 778: return(0);
1.35 kristaps 779: m->last = np;
1.10 kristaps 780:
781: return(1);
782: }
783:
784:
785: static int
1.1 kristaps 786: post_ar(POST_ARGS)
787: {
1.35 kristaps 788: struct mdoc_node *np;
1.1 kristaps 789:
1.35 kristaps 790: if (n->child)
1.1 kristaps 791: return(1);
792:
1.35 kristaps 793: np = n;
1.1 kristaps 794: m->next = MDOC_NEXT_CHILD;
1.35 kristaps 795: if ( ! mdoc_word_alloc(m, n->line, n->pos, "file"))
1.1 kristaps 796: return(0);
1.35 kristaps 797: if ( ! mdoc_word_alloc(m, n->line, n->pos, "..."))
1.1 kristaps 798: return(0);
1.35 kristaps 799: m->last = np;
1.1 kristaps 800:
801: return(1);
802: }
803:
804:
805: static int
806: post_dd(POST_ARGS)
807: {
808: char buf[64];
809:
1.5 kristaps 810: buf[0] = 0;
1.35 kristaps 811: if ( ! concat(m, n->child, buf, sizeof(buf)))
1.2 kristaps 812: return(0);
1.1 kristaps 813:
814: if (0 == (m->meta.date = mdoc_atotime(buf))) {
1.35 kristaps 815: if ( ! mdoc_nwarn(m, n, EBADDATE))
1.1 kristaps 816: return(0);
817: m->meta.date = time(NULL);
818: }
819:
1.35 kristaps 820: return(post_prol(m, n));
1.1 kristaps 821: }
822:
823:
824: static int
825: post_prol(POST_ARGS)
826: {
1.35 kristaps 827: struct mdoc_node *np;
1.1 kristaps 828:
1.35 kristaps 829: /* Remove prologue macros from AST. */
1.1 kristaps 830:
1.35 kristaps 831: if (n->parent->child == n)
832: n->parent->child = n->prev;
833: if (n->prev)
834: n->prev->next = NULL;
1.1 kristaps 835:
1.35 kristaps 836: np = n;
837: assert(NULL == n->next);
1.1 kristaps 838:
1.35 kristaps 839: if (n->prev) {
840: m->last = n->prev;
1.1 kristaps 841: m->next = MDOC_NEXT_SIBLING;
842: } else {
1.35 kristaps 843: m->last = n->parent;
1.1 kristaps 844: m->next = MDOC_NEXT_CHILD;
845: }
846:
1.35 kristaps 847: mdoc_node_freelist(np);
1.34 kristaps 848:
849: if (m->meta.title && m->meta.date && m->meta.os)
850: m->flags |= MDOC_PBODY;
1.35 kristaps 851:
1.1 kristaps 852: return(1);
853: }
854:
855:
856: static int
857: pre_dl(PRE_ARGS)
858: {
859:
1.16 kristaps 860: if (MDOC_BODY == n->type)
861: m->flags |= MDOC_LITERAL;
1.1 kristaps 862: return(1);
863: }
864:
865:
866: static int
1.38 kristaps 867: pre_offset(PRE_ARGS)
868: {
869: int i;
870:
871: /*
872: * Make sure that an empty offset produces an 8n length space as
873: * stipulated by mdoc.samples.
874: */
875:
876: assert(n->args);
877: for (i = 0; i < (int)n->args->argc; i++) {
878: if (MDOC_Offset != n->args->argv[i].arg)
879: continue;
880: if (n->args->argv[i].sz)
881: break;
882: assert(1 == n->args->refcnt);
883: /* If no value set, length of <string>. */
884: n->args->argv[i].value =
885: calloc(1, sizeof(char *));
886: if (NULL == n->args->argv[i].value)
887: return(mdoc_nerr(m, n, EMALLOC));
888: n->args->argv[i].sz++;
889: n->args->argv[i].value[0] = strdup("8n");
890: if (NULL == n->args->argv[i].value[0])
891: return(mdoc_nerr(m, n, EMALLOC));
892: break;
893: }
894:
895: return(1);
896: }
897:
898:
899: static int
900: pre_bl(PRE_ARGS)
901: {
902:
903: return(MDOC_BLOCK == n->type ? pre_offset(m, n) : 1);
904: }
905:
906:
907: static int
1.1 kristaps 908: pre_bd(PRE_ARGS)
909: {
910: int i;
911:
1.38 kristaps 912: if (MDOC_BLOCK == n->type)
913: return(pre_offset(m, n));
1.1 kristaps 914: if (MDOC_BODY != n->type)
915: return(1);
916:
1.32 kristaps 917: /* Enter literal context if `Bd -literal' or `-unfilled'. */
918:
1.2 kristaps 919: for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
1.1 kristaps 920: if (MDOC_Literal == n->args->argv[i].arg)
1.38 kristaps 921: m->flags |= MDOC_LITERAL;
1.1 kristaps 922: else if (MDOC_Unfilled == n->args->argv[i].arg)
1.38 kristaps 923: m->flags |= MDOC_LITERAL;
1.1 kristaps 924:
925: return(1);
926: }
927:
928:
929: static int
930: post_display(POST_ARGS)
931: {
932:
1.35 kristaps 933: if (MDOC_BODY == n->type)
1.1 kristaps 934: m->flags &= ~MDOC_LITERAL;
935: return(1);
936: }
937:
938:
1.39 kristaps 939: static inline int
940: order_rs(int t)
941: {
942: int i;
943:
944: for (i = 0; i < RSORD_MAX; i++)
945: if (rsord[i] == t)
946: return(i);
947:
948: abort();
949: /* NOTREACHED */
950: }
951:
952:
1.41 kristaps 953: /* ARGSUSED */
1.39 kristaps 954: static int
955: post_rs(POST_ARGS)
956: {
957: struct mdoc_node *nn, *next, *prev;
958: int o;
959:
960: if (MDOC_BLOCK != n->type)
961: return(1);
962:
1.40 kristaps 963: assert(n->body->child);
1.39 kristaps 964: for (next = NULL, nn = n->body->child->next; nn; nn = next) {
965: o = order_rs(nn->tok);
966:
967: /* Remove `nn' from the chain. */
968: next = nn->next;
969: if (next)
970: next->prev = nn->prev;
971:
972: prev = nn->prev;
973: if (prev)
974: prev->next = nn->next;
975:
976: nn->prev = nn->next = NULL;
977:
978: /*
979: * Scan back until we reach a node that's ordered before
980: * us, then set ourselves as being the next.
981: */
982: for ( ; prev; prev = prev->prev)
983: if (order_rs(prev->tok) <= o)
984: break;
985:
986: nn->prev = prev;
987: if (prev) {
988: if (prev->next)
989: prev->next->prev = nn;
990: nn->next = prev->next;
991: prev->next = nn;
992: continue;
993: }
994:
995: n->body->child->prev = nn;
996: nn->next = n->body->child;
997: n->body->child = nn;
998: }
999: return(1);
1000: }
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