Annotation of mandoc/mdoc_action.c, Revision 1.40
1.40 ! kristaps 1: /* $Id: mdoc_action.c,v 1.39 2009/09/24 15:01:06 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:
1.39 kristaps 35: static int concat(struct mdoc *,
36: const struct mdoc_node *,
37: char *, size_t);
38: static inline int order_rs(int);
39:
40: #ifdef __linux__
41: extern size_t strlcat(char *, const char *, size_t);
42: #endif
43:
1.1 kristaps 44: static int post_ar(POST_ARGS);
1.25 kristaps 45: static int post_at(POST_ARGS);
1.1 kristaps 46: static int post_bl(POST_ARGS);
1.14 kristaps 47: static int post_bl_head(POST_ARGS);
1.25 kristaps 48: static int post_bl_tagwidth(POST_ARGS);
1.1 kristaps 49: static int post_bl_width(POST_ARGS);
50: static int post_dd(POST_ARGS);
51: static int post_display(POST_ARGS);
52: static int post_dt(POST_ARGS);
1.27 kristaps 53: static int post_lb(POST_ARGS);
1.1 kristaps 54: static int post_nm(POST_ARGS);
55: static int post_os(POST_ARGS);
56: static int post_prol(POST_ARGS);
1.39 kristaps 57: static int post_rs(POST_ARGS);
1.1 kristaps 58: static int post_sh(POST_ARGS);
1.26 kristaps 59: static int post_st(POST_ARGS);
1.1 kristaps 60: static int post_std(POST_ARGS);
1.31 kristaps 61: static int post_tilde(POST_ARGS);
1.1 kristaps 62:
63: static int pre_bd(PRE_ARGS);
1.38 kristaps 64: static int pre_bl(PRE_ARGS);
1.1 kristaps 65: static int pre_dl(PRE_ARGS);
1.38 kristaps 66: static int pre_offset(PRE_ARGS);
1.1 kristaps 67:
1.37 kristaps 68: static const struct actions mdoc_actions[MDOC_MAX] = {
1.12 kristaps 69: { NULL, NULL }, /* Ap */
1.1 kristaps 70: { NULL, post_dd }, /* Dd */
71: { NULL, post_dt }, /* Dt */
72: { NULL, post_os }, /* Os */
73: { NULL, post_sh }, /* Sh */
74: { NULL, NULL }, /* Ss */
75: { NULL, NULL }, /* Pp */
76: { NULL, NULL }, /* D1 */
77: { pre_dl, post_display }, /* Dl */
78: { pre_bd, post_display }, /* Bd */
79: { NULL, NULL }, /* Ed */
1.38 kristaps 80: { pre_bl, post_bl }, /* Bl */
1.1 kristaps 81: { NULL, NULL }, /* El */
82: { NULL, NULL }, /* It */
83: { NULL, NULL }, /* Ad */
84: { NULL, NULL }, /* An */
85: { NULL, post_ar }, /* Ar */
1.35 kristaps 86: { NULL, NULL }, /* Cd */
1.1 kristaps 87: { NULL, NULL }, /* Cm */
88: { NULL, NULL }, /* Dv */
89: { NULL, NULL }, /* Er */
90: { NULL, NULL }, /* Ev */
91: { NULL, post_std }, /* Ex */
92: { NULL, NULL }, /* Fa */
93: { NULL, NULL }, /* Fd */
94: { NULL, NULL }, /* Fl */
95: { NULL, NULL }, /* Fn */
96: { NULL, NULL }, /* Ft */
97: { NULL, NULL }, /* Ic */
98: { NULL, NULL }, /* In */
99: { NULL, NULL }, /* Li */
100: { NULL, NULL }, /* Nd */
101: { NULL, post_nm }, /* Nm */
102: { NULL, NULL }, /* Op */
103: { NULL, NULL }, /* Ot */
1.31 kristaps 104: { NULL, post_tilde }, /* Pa */
1.1 kristaps 105: { NULL, post_std }, /* Rv */
1.26 kristaps 106: { NULL, post_st }, /* St */
1.1 kristaps 107: { NULL, NULL }, /* Va */
108: { NULL, NULL }, /* Vt */
109: { NULL, NULL }, /* Xr */
110: { NULL, NULL }, /* %A */
111: { NULL, NULL }, /* %B */
112: { NULL, NULL }, /* %D */
113: { NULL, NULL }, /* %I */
114: { NULL, NULL }, /* %J */
115: { NULL, NULL }, /* %N */
116: { NULL, NULL }, /* %O */
117: { NULL, NULL }, /* %P */
118: { NULL, NULL }, /* %R */
119: { NULL, NULL }, /* %T */
120: { NULL, NULL }, /* %V */
121: { NULL, NULL }, /* Ac */
122: { NULL, NULL }, /* Ao */
123: { NULL, NULL }, /* Aq */
1.25 kristaps 124: { NULL, post_at }, /* At */
1.1 kristaps 125: { NULL, NULL }, /* Bc */
126: { NULL, NULL }, /* Bf */
127: { NULL, NULL }, /* Bo */
128: { NULL, NULL }, /* Bq */
129: { NULL, NULL }, /* Bsx */
130: { NULL, NULL }, /* Bx */
131: { NULL, NULL }, /* Db */
132: { NULL, NULL }, /* Dc */
133: { NULL, NULL }, /* Do */
134: { NULL, NULL }, /* Dq */
135: { NULL, NULL }, /* Ec */
136: { NULL, NULL }, /* Ef */
137: { NULL, NULL }, /* Em */
138: { NULL, NULL }, /* Eo */
139: { NULL, NULL }, /* Fx */
140: { NULL, NULL }, /* Ms */
141: { NULL, NULL }, /* No */
142: { NULL, NULL }, /* Ns */
143: { NULL, NULL }, /* Nx */
144: { NULL, NULL }, /* Ox */
145: { NULL, NULL }, /* Pc */
146: { NULL, NULL }, /* Pf */
147: { NULL, NULL }, /* Po */
148: { NULL, NULL }, /* Pq */
149: { NULL, NULL }, /* Qc */
150: { NULL, NULL }, /* Ql */
151: { NULL, NULL }, /* Qo */
152: { NULL, NULL }, /* Qq */
153: { NULL, NULL }, /* Re */
1.39 kristaps 154: { NULL, post_rs }, /* Rs */
1.1 kristaps 155: { NULL, NULL }, /* Sc */
156: { NULL, NULL }, /* So */
157: { NULL, NULL }, /* Sq */
158: { NULL, NULL }, /* Sm */
159: { NULL, NULL }, /* Sx */
160: { NULL, NULL }, /* Sy */
161: { NULL, NULL }, /* Tn */
162: { NULL, NULL }, /* Ux */
163: { NULL, NULL }, /* Xc */
164: { NULL, NULL }, /* Xo */
165: { NULL, NULL }, /* Fo */
166: { NULL, NULL }, /* Fc */
167: { NULL, NULL }, /* Oo */
168: { NULL, NULL }, /* Oc */
169: { NULL, NULL }, /* Bk */
170: { NULL, NULL }, /* Ek */
171: { NULL, NULL }, /* Bt */
172: { NULL, NULL }, /* Hf */
173: { NULL, NULL }, /* Fr */
174: { NULL, NULL }, /* Ud */
1.27 kristaps 175: { NULL, post_lb }, /* Lb */
1.1 kristaps 176: { NULL, NULL }, /* Lp */
1.31 kristaps 177: { NULL, post_tilde }, /* Lk */
1.1 kristaps 178: { NULL, NULL }, /* Mt */
179: { NULL, NULL }, /* Brq */
180: { NULL, NULL }, /* Bro */
181: { NULL, NULL }, /* Brc */
182: { NULL, NULL }, /* %C */
183: { NULL, NULL }, /* Es */
184: { NULL, NULL }, /* En */
185: { NULL, NULL }, /* Dx */
186: { NULL, NULL }, /* %Q */
1.30 kristaps 187: { NULL, NULL }, /* br */
188: { NULL, NULL }, /* sp */
1.1 kristaps 189: };
190:
1.39 kristaps 191: #define RSORD_MAX 13
1.1 kristaps 192:
1.39 kristaps 193: static const int rsord[RSORD_MAX] = {
194: MDOC__A,
195: MDOC__T,
196: MDOC__B,
197: MDOC__I,
198: MDOC__J,
199: MDOC__R,
200: MDOC__N,
201: MDOC__V,
202: MDOC__P,
203: MDOC__Q,
204: MDOC__D,
205: MDOC__O,
206: MDOC__C
207: };
1.2 kristaps 208:
209:
1.1 kristaps 210: int
211: mdoc_action_pre(struct mdoc *m, const struct mdoc_node *n)
212: {
213:
214: switch (n->type) {
215: case (MDOC_ROOT):
1.2 kristaps 216: /* FALLTHROUGH */
1.1 kristaps 217: case (MDOC_TEXT):
1.2 kristaps 218: return(1);
219: default:
1.1 kristaps 220: break;
221: }
1.2 kristaps 222:
1.6 kristaps 223: if (NULL == mdoc_actions[n->tok].pre)
1.2 kristaps 224: return(1);
1.6 kristaps 225: return((*mdoc_actions[n->tok].pre)(m, n));
1.1 kristaps 226: }
227:
228:
229: int
230: mdoc_action_post(struct mdoc *m)
231: {
232:
233: if (MDOC_ACTED & m->last->flags)
234: return(1);
235: m->last->flags |= MDOC_ACTED;
236:
237: switch (m->last->type) {
238: case (MDOC_TEXT):
1.2 kristaps 239: /* FALLTHROUGH */
1.1 kristaps 240: case (MDOC_ROOT):
1.2 kristaps 241: return(1);
242: default:
1.1 kristaps 243: break;
244: }
1.2 kristaps 245:
246: if (NULL == mdoc_actions[m->last->tok].post)
247: return(1);
1.35 kristaps 248: return((*mdoc_actions[m->last->tok].post)(m, m->last));
1.2 kristaps 249: }
250:
251:
252: static int
253: concat(struct mdoc *m, const struct mdoc_node *n,
254: char *buf, size_t sz)
255: {
256:
257: for ( ; n; n = n->next) {
258: assert(MDOC_TEXT == n->type);
259: if (strlcat(buf, n->string, sz) >= sz)
1.23 kristaps 260: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 261: if (NULL == n->next)
262: continue;
263: if (strlcat(buf, " ", sz) >= sz)
1.23 kristaps 264: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 265: }
266:
1.1 kristaps 267: return(1);
268: }
269:
270:
271: static int
272: post_std(POST_ARGS)
273: {
1.35 kristaps 274: struct mdoc_node *nn;
1.1 kristaps 275:
1.35 kristaps 276: if (n->child)
1.1 kristaps 277: return(1);
1.35 kristaps 278:
279: nn = n;
280: m->next = MDOC_NEXT_CHILD;
1.1 kristaps 281: assert(m->meta.name);
1.35 kristaps 282: if ( ! mdoc_word_alloc(m, n->line, n->pos, m->meta.name))
283: return(0);
284: m->last = nn;
1.2 kristaps 285:
1.1 kristaps 286: return(1);
287: }
288:
289:
290: static int
291: post_nm(POST_ARGS)
292: {
293: char buf[64];
294:
295: if (m->meta.name)
296: return(1);
1.5 kristaps 297:
298: buf[0] = 0;
1.35 kristaps 299: if ( ! concat(m, n->child, buf, sizeof(buf)))
1.2 kristaps 300: return(0);
301: if (NULL == (m->meta.name = strdup(buf)))
1.35 kristaps 302: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 303:
304: return(1);
305: }
306:
307:
308: static int
1.27 kristaps 309: post_lb(POST_ARGS)
310: {
311: const char *p;
312: char *buf;
313: size_t sz;
314:
1.35 kristaps 315: assert(MDOC_TEXT == n->child->type);
316: p = mdoc_a2lib(n->child->string);
1.27 kristaps 317: if (NULL == p) {
1.35 kristaps 318: sz = strlen(n->child->string) +
1.27 kristaps 319: 2 + strlen("\\(lqlibrary\\(rq");
320: buf = malloc(sz);
321: if (NULL == buf)
1.35 kristaps 322: return(mdoc_nerr(m, n, EMALLOC));
1.27 kristaps 323: (void)snprintf(buf, sz, "library \\(lq%s\\(rq",
1.35 kristaps 324: n->child->string);
325: free(n->child->string);
326: n->child->string = buf;
1.27 kristaps 327: return(1);
328: }
329:
1.35 kristaps 330: free(n->child->string);
331: n->child->string = strdup(p);
332: if (NULL == n->child->string)
333: return(mdoc_nerr(m, n, EMALLOC));
334:
1.27 kristaps 335: return(1);
336: }
337:
338:
339: static int
1.26 kristaps 340: post_st(POST_ARGS)
341: {
342: const char *p;
343:
1.35 kristaps 344: assert(MDOC_TEXT == n->child->type);
345: p = mdoc_a2st(n->child->string);
1.26 kristaps 346: assert(p);
1.35 kristaps 347: free(n->child->string);
348: n->child->string = strdup(p);
349: if (NULL == n->child->string)
350: return(mdoc_nerr(m, n, EMALLOC));
351:
1.26 kristaps 352: return(1);
353: }
354:
355:
356: static int
1.25 kristaps 357: post_at(POST_ARGS)
358: {
1.35 kristaps 359: struct mdoc_node *nn;
360: const char *p;
1.25 kristaps 361:
1.35 kristaps 362: if (n->child) {
363: assert(MDOC_TEXT == n->child->type);
364: p = mdoc_a2att(n->child->string);
1.25 kristaps 365: assert(p);
1.35 kristaps 366: free(n->child->string);
367: n->child->string = strdup(p);
368: if (NULL == n->child->string)
369: return(mdoc_nerr(m, n, EMALLOC));
1.25 kristaps 370: return(1);
371: }
372:
1.35 kristaps 373: nn = n;
1.25 kristaps 374: m->next = MDOC_NEXT_CHILD;
375:
1.35 kristaps 376: if ( ! mdoc_word_alloc(m, nn->line, nn->pos, "AT&T UNIX"))
1.25 kristaps 377: return(0);
1.35 kristaps 378: m->last = nn;
1.25 kristaps 379:
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:
1.35 kristaps 396: if (MDOC_HEAD != n->type)
1.1 kristaps 397: return(1);
1.5 kristaps 398:
399: buf[0] = 0;
1.35 kristaps 400: if ( ! concat(m, n->child, buf, sizeof(buf)))
1.2 kristaps 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:
1.35 kristaps 417: return(mdoc_nwarn(m, n, 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: {
1.35 kristaps 430: struct mdoc_node *nn;
1.1 kristaps 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:
1.35 kristaps 449: if (NULL == (nn = n->child)) {
1.2 kristaps 450: if (NULL == (m->meta.title = strdup("unknown")))
1.35 kristaps 451: return(mdoc_nerr(m, n, EMALLOC));
1.2 kristaps 452: if (NULL == (m->meta.vol = strdup("local")))
1.35 kristaps 453: return(mdoc_nerr(m, n, EMALLOC));
454: return(post_prol(m, n));
1.1 kristaps 455: }
456:
457: /* Handles: `.Dt TITLE'
458: * --> title = TITLE, volume = local, msec = 0, arch = NULL
459: */
460:
1.35 kristaps 461: if (NULL == (m->meta.title = strdup(nn->string)))
462: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 463:
1.35 kristaps 464: if (NULL == (nn = nn->next)) {
1.2 kristaps 465: if (NULL == (m->meta.vol = strdup("local")))
1.35 kristaps 466: return(mdoc_nerr(m, n, EMALLOC));
467: return(post_prol(m, n));
1.1 kristaps 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:
1.35 kristaps 477: cp = mdoc_a2msec(nn->string);
1.1 kristaps 478: if (cp) {
1.2 kristaps 479: if (NULL == (m->meta.vol = strdup(cp)))
1.35 kristaps 480: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 481: errno = 0;
1.35 kristaps 482: lval = strtol(nn->string, &ep, 10);
483: if (nn->string[0] != '\0' && *ep == '\0')
1.1 kristaps 484: m->meta.msec = (int)lval;
1.35 kristaps 485: } else if (NULL == (m->meta.vol = strdup(nn->string)))
486: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 487:
1.35 kristaps 488: if (NULL == (nn = nn->next))
489: return(post_prol(m, n));
1.1 kristaps 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:
1.35 kristaps 498: cp = mdoc_a2vol(nn->string);
1.1 kristaps 499: if (cp) {
500: free(m->meta.vol);
1.2 kristaps 501: if (NULL == (m->meta.vol = strdup(cp)))
1.35 kristaps 502: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 503: } else {
1.35 kristaps 504: cp = mdoc_a2arch(nn->string);
1.1 kristaps 505: if (NULL == cp) {
506: free(m->meta.vol);
1.35 kristaps 507: if (NULL == (m->meta.vol = strdup(nn->string)))
508: return(mdoc_nerr(m, n, EMALLOC));
1.2 kristaps 509: } else if (NULL == (m->meta.arch = strdup(cp)))
1.35 kristaps 510: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 511: }
512:
513: /* Ignore any subsequent parameters... */
514:
1.35 kristaps 515: return(post_prol(m, n));
1.1 kristaps 516: }
517:
518:
519: static int
520: post_os(POST_ARGS)
521: {
522: char buf[64];
523: struct utsname utsname;
524:
525: if (m->meta.os)
526: free(m->meta.os);
1.4 kristaps 527:
528: buf[0] = 0;
1.35 kristaps 529: if ( ! concat(m, n->child, buf, sizeof(buf)))
1.2 kristaps 530: return(0);
1.1 kristaps 531:
532: if (0 == buf[0]) {
533: if (-1 == uname(&utsname))
1.35 kristaps 534: return(mdoc_nerr(m, n, EUTSNAME));
1.4 kristaps 535: if (strlcat(buf, utsname.sysname, 64) >= 64)
1.35 kristaps 536: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 537: if (strlcat(buf, " ", 64) >= 64)
1.35 kristaps 538: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 539: if (strlcat(buf, utsname.release, 64) >= 64)
1.35 kristaps 540: return(mdoc_nerr(m, n, ETOOLONG));
1.1 kristaps 541: }
542:
1.2 kristaps 543: if (NULL == (m->meta.os = strdup(buf)))
1.35 kristaps 544: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 545:
1.35 kristaps 546: return(post_prol(m, n));
1.1 kristaps 547: }
548:
549:
550: /*
551: * Calculate the -width for a `Bl -tag' list if it hasn't been provided.
552: * Uses the first head macro.
553: */
554: static int
1.35 kristaps 555: post_bl_tagwidth(POST_ARGS)
1.1 kristaps 556: {
1.35 kristaps 557: struct mdoc_node *nn;
1.1 kristaps 558: int sz;
559: char buf[32];
560:
561: /*
562: * Use the text width, if a text node, or the default macro
563: * width if a macro.
564: */
565:
1.35 kristaps 566: nn = n->body->child;
567: if (nn) {
568: assert(MDOC_BLOCK == nn->type);
569: assert(MDOC_It == nn->tok);
570: nn = nn->head->child;
1.1 kristaps 571: }
572:
573: sz = 10; /* Default size. */
574:
1.35 kristaps 575: if (nn) {
576: if (MDOC_TEXT != nn->type) {
577: if (0 == (sz = (int)mdoc_macro2len(nn->tok)))
578: if ( ! mdoc_nwarn(m, n, ENOWIDTH))
1.1 kristaps 579: return(0);
580: } else
1.35 kristaps 581: sz = (int)strlen(nn->string) + 1;
1.1 kristaps 582: }
583:
1.2 kristaps 584: if (-1 == snprintf(buf, sizeof(buf), "%dn", sz))
1.35 kristaps 585: return(mdoc_nerr(m, n, ENUMFMT));
1.1 kristaps 586:
587: /*
588: * We have to dynamically add this to the macro's argument list.
589: * We're guaranteed that a MDOC_Width doesn't already exist.
590: */
591:
1.35 kristaps 592: nn = n;
593: assert(nn->args);
594: sz = (int)(nn->args->argc)++;
1.1 kristaps 595:
1.35 kristaps 596: nn->args->argv = realloc(nn->args->argv,
597: nn->args->argc * sizeof(struct mdoc_argv));
1.1 kristaps 598:
1.35 kristaps 599: if (NULL == nn->args->argv)
600: return(mdoc_nerr(m, n, EMALLOC));
1.2 kristaps 601:
1.35 kristaps 602: nn->args->argv[sz].arg = MDOC_Width;
603: nn->args->argv[sz].line = n->line;
604: nn->args->argv[sz].pos = n->pos;
605: nn->args->argv[sz].sz = 1;
606: nn->args->argv[sz].value = calloc(1, sizeof(char *));
1.2 kristaps 607:
1.35 kristaps 608: if (NULL == nn->args->argv[sz].value)
609: return(mdoc_nerr(m, n, EMALLOC));
610: if (NULL == (nn->args->argv[sz].value[0] = strdup(buf)))
611: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 612:
613: return(1);
614: }
615:
616:
617: static int
1.35 kristaps 618: post_bl_width(POST_ARGS)
1.1 kristaps 619: {
620: size_t width;
621: int i, tok;
622: char buf[32];
623: char *p;
624:
1.35 kristaps 625: if (NULL == n->args)
1.1 kristaps 626: return(1);
627:
1.35 kristaps 628: for (i = 0; i < (int)n->args->argc; i++)
629: if (MDOC_Width == n->args->argv[i].arg)
1.1 kristaps 630: break;
631:
1.35 kristaps 632: if (i == (int)n->args->argc)
1.1 kristaps 633: return(1);
1.35 kristaps 634: p = n->args->argv[i].value[0];
1.1 kristaps 635:
636: /*
637: * If the value to -width is a macro, then we re-write it to be
638: * the macro's width as set in share/tmac/mdoc/doc-common.
639: */
640:
1.2 kristaps 641: if (0 == strcmp(p, "Ds"))
1.18 kristaps 642: width = 6;
1.36 kristaps 643: else if (MDOC_MAX == (tok = mdoc_hash_find(p)))
1.1 kristaps 644: return(1);
645: else if (0 == (width = mdoc_macro2len(tok)))
1.35 kristaps 646: return(mdoc_nwarn(m, n, ENOWIDTH));
1.1 kristaps 647:
648: /* The value already exists: free and reallocate it. */
649:
1.2 kristaps 650: if (-1 == snprintf(buf, sizeof(buf), "%zun", width))
1.35 kristaps 651: return(mdoc_nerr(m, n, ENUMFMT));
1.1 kristaps 652:
1.35 kristaps 653: free(n->args->argv[i].value[0]);
654: n->args->argv[i].value[0] = strdup(buf);
655: if (NULL == n->args->argv[i].value[0])
656: return(mdoc_nerr(m, n, EMALLOC));
1.1 kristaps 657:
658: return(1);
659: }
660:
661:
1.35 kristaps 662: /* ARGSUSED */
1.1 kristaps 663: static int
1.14 kristaps 664: post_bl_head(POST_ARGS)
665: {
666: int i, c;
1.35 kristaps 667: struct mdoc_node *np, *nn, *nnp;
1.14 kristaps 668:
1.35 kristaps 669: if (NULL == n->child)
1.14 kristaps 670: return(1);
671:
1.35 kristaps 672: np = n->parent;
673: assert(np->args);
1.14 kristaps 674:
1.35 kristaps 675: for (c = 0; c < (int)np->args->argc; c++)
676: if (MDOC_Column == np->args->argv[c].arg)
1.14 kristaps 677: break;
678:
679: /* Only process -column. */
680:
1.35 kristaps 681: if (c == (int)np->args->argc)
1.14 kristaps 682: return(1);
683:
1.35 kristaps 684: assert(0 == np->args->argv[c].sz);
1.14 kristaps 685:
686: /*
687: * Accomodate for new-style groff column syntax. Shuffle the
688: * child nodes, all of which must be TEXT, as arguments for the
689: * column field. Then, delete the head children.
690: */
691:
1.35 kristaps 692: np->args->argv[c].sz = (size_t)n->nchild;
693: np->args->argv[c].value = malloc
694: ((size_t)n->nchild * sizeof(char *));
1.14 kristaps 695:
1.35 kristaps 696: for (i = 0, nn = n->child; nn; i++) {
697: np->args->argv[c].value[i] = nn->string;
1.14 kristaps 698: nn->string = NULL;
699: nnp = nn;
700: nn = nn->next;
701: mdoc_node_free(nnp);
702: }
703:
1.35 kristaps 704: n->nchild = 0;
705: n->child = NULL;
1.17 kristaps 706:
1.14 kristaps 707: return(1);
708: }
709:
710:
711: static int
1.1 kristaps 712: post_bl(POST_ARGS)
713: {
714: int i, r, len;
715:
1.35 kristaps 716: if (MDOC_HEAD == n->type)
717: return(post_bl_head(m, n));
718: if (MDOC_BLOCK != n->type)
1.1 kristaps 719: return(1);
720:
721: /*
722: * These are fairly complicated, so we've broken them into two
723: * functions. post_bl_tagwidth() is called when a -tag is
724: * specified, but no -width (it must be guessed). The second
725: * when a -width is specified (macro indicators must be
726: * rewritten into real lengths).
727: */
728:
1.35 kristaps 729: len = (int)(n->args ? n->args->argc : 0);
1.1 kristaps 730:
731: for (r = i = 0; i < len; i++) {
1.35 kristaps 732: if (MDOC_Tag == n->args->argv[i].arg)
1.1 kristaps 733: r |= 1 << 0;
1.35 kristaps 734: if (MDOC_Width == n->args->argv[i].arg)
1.1 kristaps 735: r |= 1 << 1;
736: }
737:
738: if (r & (1 << 0) && ! (r & (1 << 1))) {
1.35 kristaps 739: if ( ! post_bl_tagwidth(m, n))
1.1 kristaps 740: return(0);
741: } else if (r & (1 << 1))
1.35 kristaps 742: if ( ! post_bl_width(m, n))
1.1 kristaps 743: return(0);
744:
745: return(1);
746: }
747:
748:
749: static int
1.31 kristaps 750: post_tilde(POST_ARGS)
1.10 kristaps 751: {
1.35 kristaps 752: struct mdoc_node *np;
1.10 kristaps 753:
1.35 kristaps 754: if (n->child)
1.10 kristaps 755: return(1);
756:
1.35 kristaps 757: np = n;
1.10 kristaps 758: m->next = MDOC_NEXT_CHILD;
1.24 kristaps 759:
1.31 kristaps 760: /* XXX: not documented for `Lk'. */
1.35 kristaps 761: if ( ! mdoc_word_alloc(m, n->line, n->pos, "~"))
1.10 kristaps 762: return(0);
1.35 kristaps 763: m->last = np;
1.10 kristaps 764:
765: return(1);
766: }
767:
768:
769: static int
1.1 kristaps 770: post_ar(POST_ARGS)
771: {
1.35 kristaps 772: struct mdoc_node *np;
1.1 kristaps 773:
1.35 kristaps 774: if (n->child)
1.1 kristaps 775: return(1);
776:
1.35 kristaps 777: np = n;
1.1 kristaps 778: m->next = MDOC_NEXT_CHILD;
1.35 kristaps 779: if ( ! mdoc_word_alloc(m, n->line, n->pos, "file"))
1.1 kristaps 780: return(0);
1.35 kristaps 781: if ( ! mdoc_word_alloc(m, n->line, n->pos, "..."))
1.1 kristaps 782: return(0);
1.35 kristaps 783: m->last = np;
1.1 kristaps 784:
785: return(1);
786: }
787:
788:
789: static int
790: post_dd(POST_ARGS)
791: {
792: char buf[64];
793:
1.5 kristaps 794: buf[0] = 0;
1.35 kristaps 795: if ( ! concat(m, n->child, buf, sizeof(buf)))
1.2 kristaps 796: return(0);
1.1 kristaps 797:
798: if (0 == (m->meta.date = mdoc_atotime(buf))) {
1.35 kristaps 799: if ( ! mdoc_nwarn(m, n, EBADDATE))
1.1 kristaps 800: return(0);
801: m->meta.date = time(NULL);
802: }
803:
1.35 kristaps 804: return(post_prol(m, n));
1.1 kristaps 805: }
806:
807:
808: static int
809: post_prol(POST_ARGS)
810: {
1.35 kristaps 811: struct mdoc_node *np;
1.1 kristaps 812:
1.35 kristaps 813: /* Remove prologue macros from AST. */
1.1 kristaps 814:
1.35 kristaps 815: if (n->parent->child == n)
816: n->parent->child = n->prev;
817: if (n->prev)
818: n->prev->next = NULL;
1.1 kristaps 819:
1.35 kristaps 820: np = n;
821: assert(NULL == n->next);
1.1 kristaps 822:
1.35 kristaps 823: if (n->prev) {
824: m->last = n->prev;
1.1 kristaps 825: m->next = MDOC_NEXT_SIBLING;
826: } else {
1.35 kristaps 827: m->last = n->parent;
1.1 kristaps 828: m->next = MDOC_NEXT_CHILD;
829: }
830:
1.35 kristaps 831: mdoc_node_freelist(np);
1.34 kristaps 832:
833: if (m->meta.title && m->meta.date && m->meta.os)
834: m->flags |= MDOC_PBODY;
1.35 kristaps 835:
1.1 kristaps 836: return(1);
837: }
838:
839:
840: static int
841: pre_dl(PRE_ARGS)
842: {
843:
1.16 kristaps 844: if (MDOC_BODY == n->type)
845: m->flags |= MDOC_LITERAL;
1.1 kristaps 846: return(1);
847: }
848:
849:
850: static int
1.38 kristaps 851: pre_offset(PRE_ARGS)
852: {
853: int i;
854:
855: /*
856: * Make sure that an empty offset produces an 8n length space as
857: * stipulated by mdoc.samples.
858: */
859:
860: assert(n->args);
861: for (i = 0; i < (int)n->args->argc; i++) {
862: if (MDOC_Offset != n->args->argv[i].arg)
863: continue;
864: if (n->args->argv[i].sz)
865: break;
866: assert(1 == n->args->refcnt);
867: /* If no value set, length of <string>. */
868: n->args->argv[i].value =
869: calloc(1, sizeof(char *));
870: if (NULL == n->args->argv[i].value)
871: return(mdoc_nerr(m, n, EMALLOC));
872: n->args->argv[i].sz++;
873: n->args->argv[i].value[0] = strdup("8n");
874: if (NULL == n->args->argv[i].value[0])
875: return(mdoc_nerr(m, n, EMALLOC));
876: break;
877: }
878:
879: return(1);
880: }
881:
882:
883: static int
884: pre_bl(PRE_ARGS)
885: {
886:
887: return(MDOC_BLOCK == n->type ? pre_offset(m, n) : 1);
888: }
889:
890:
891: static int
1.1 kristaps 892: pre_bd(PRE_ARGS)
893: {
894: int i;
895:
1.38 kristaps 896: if (MDOC_BLOCK == n->type)
897: return(pre_offset(m, n));
1.1 kristaps 898: if (MDOC_BODY != n->type)
899: return(1);
900:
1.32 kristaps 901: /* Enter literal context if `Bd -literal' or `-unfilled'. */
902:
1.2 kristaps 903: for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
1.1 kristaps 904: if (MDOC_Literal == n->args->argv[i].arg)
1.38 kristaps 905: m->flags |= MDOC_LITERAL;
1.1 kristaps 906: else if (MDOC_Unfilled == n->args->argv[i].arg)
1.38 kristaps 907: m->flags |= MDOC_LITERAL;
1.1 kristaps 908:
909: return(1);
910: }
911:
912:
913: static int
914: post_display(POST_ARGS)
915: {
916:
1.35 kristaps 917: if (MDOC_BODY == n->type)
1.1 kristaps 918: m->flags &= ~MDOC_LITERAL;
919: return(1);
920: }
921:
922:
1.39 kristaps 923: static inline int
924: order_rs(int t)
925: {
926: int i;
927:
928: for (i = 0; i < RSORD_MAX; i++)
929: if (rsord[i] == t)
930: return(i);
931:
932: abort();
933: /* NOTREACHED */
934: }
935:
936:
937: static int
938: post_rs(POST_ARGS)
939: {
940: struct mdoc_node *nn, *next, *prev;
941: int o;
942:
943: if (MDOC_BLOCK != n->type)
944: return(1);
945:
1.40 ! kristaps 946: assert(n->body->child);
1.39 kristaps 947: for (next = NULL, nn = n->body->child->next; nn; nn = next) {
948: o = order_rs(nn->tok);
949:
950: /* Remove `nn' from the chain. */
951: next = nn->next;
952: if (next)
953: next->prev = nn->prev;
954:
955: prev = nn->prev;
956: if (prev)
957: prev->next = nn->next;
958:
959: nn->prev = nn->next = NULL;
960:
961: /*
962: * Scan back until we reach a node that's ordered before
963: * us, then set ourselves as being the next.
964: */
965: for ( ; prev; prev = prev->prev)
966: if (order_rs(prev->tok) <= o)
967: break;
968:
969: nn->prev = prev;
970: if (prev) {
971: if (prev->next)
972: prev->next->prev = nn;
973: nn->next = prev->next;
974: prev->next = nn;
975: continue;
976: }
977:
978: n->body->child->prev = nn;
979: nn->next = n->body->child;
980: n->body->child = nn;
981: }
982: return(1);
983: }
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