Annotation of mandoc/mdoc_action.c, Revision 1.57
1.57 ! kristaps 1: /* $Id: mdoc_action.c,v 1.56 2010/05/14 15:26:39 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: */
1.50 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.44 kristaps 21: #ifndef OSNAME
1.1 kristaps 22: #include <sys/utsname.h>
1.44 kristaps 23: #endif
1.1 kristaps 24:
25: #include <assert.h>
26: #include <stdio.h>
27: #include <stdlib.h>
28: #include <string.h>
1.44 kristaps 29: #include <time.h>
1.1 kristaps 30:
31: #include "libmdoc.h"
1.46 kristaps 32: #include "libmandoc.h"
1.1 kristaps 33:
1.35 kristaps 34: #define POST_ARGS struct mdoc *m, struct mdoc_node *n
1.1 kristaps 35: #define PRE_ARGS struct mdoc *m, const struct mdoc_node *n
36:
1.46 kristaps 37: #define NUMSIZ 32
38: #define DATESIZ 32
39:
1.1 kristaps 40: struct actions {
41: int (*pre)(PRE_ARGS);
42: int (*post)(POST_ARGS);
43: };
44:
1.46 kristaps 45: static int concat(struct mdoc *, char *,
46: const struct mdoc_node *, size_t);
1.54 kristaps 47: static inline int order_rs(enum mdoct);
1.39 kristaps 48:
1.1 kristaps 49: static int post_ar(POST_ARGS);
1.25 kristaps 50: static int post_at(POST_ARGS);
1.1 kristaps 51: static int post_bl(POST_ARGS);
1.14 kristaps 52: static int post_bl_head(POST_ARGS);
1.25 kristaps 53: static int post_bl_tagwidth(POST_ARGS);
1.1 kristaps 54: static int post_bl_width(POST_ARGS);
55: static int post_dd(POST_ARGS);
56: static int post_display(POST_ARGS);
57: static int post_dt(POST_ARGS);
1.27 kristaps 58: static int post_lb(POST_ARGS);
1.1 kristaps 59: static int post_nm(POST_ARGS);
60: static int post_os(POST_ARGS);
1.46 kristaps 61: static int post_pa(POST_ARGS);
1.1 kristaps 62: static int post_prol(POST_ARGS);
1.39 kristaps 63: static int post_rs(POST_ARGS);
1.1 kristaps 64: static int post_sh(POST_ARGS);
1.26 kristaps 65: static int post_st(POST_ARGS);
1.1 kristaps 66: static int post_std(POST_ARGS);
67:
68: static int pre_bd(PRE_ARGS);
1.38 kristaps 69: static int pre_bl(PRE_ARGS);
1.1 kristaps 70: static int pre_dl(PRE_ARGS);
1.38 kristaps 71: static int pre_offset(PRE_ARGS);
1.1 kristaps 72:
1.37 kristaps 73: static const struct actions mdoc_actions[MDOC_MAX] = {
1.12 kristaps 74: { NULL, NULL }, /* Ap */
1.1 kristaps 75: { NULL, post_dd }, /* Dd */
76: { NULL, post_dt }, /* Dt */
77: { NULL, post_os }, /* Os */
78: { NULL, post_sh }, /* Sh */
79: { NULL, NULL }, /* Ss */
80: { NULL, NULL }, /* Pp */
81: { NULL, NULL }, /* D1 */
82: { pre_dl, post_display }, /* Dl */
83: { pre_bd, post_display }, /* Bd */
84: { NULL, NULL }, /* Ed */
1.38 kristaps 85: { pre_bl, post_bl }, /* Bl */
1.1 kristaps 86: { NULL, NULL }, /* El */
87: { NULL, NULL }, /* It */
88: { NULL, NULL }, /* Ad */
89: { NULL, NULL }, /* An */
90: { NULL, post_ar }, /* Ar */
1.35 kristaps 91: { NULL, NULL }, /* Cd */
1.1 kristaps 92: { NULL, NULL }, /* Cm */
93: { NULL, NULL }, /* Dv */
94: { NULL, NULL }, /* Er */
95: { NULL, NULL }, /* Ev */
96: { NULL, post_std }, /* Ex */
97: { NULL, NULL }, /* Fa */
98: { NULL, NULL }, /* Fd */
99: { NULL, NULL }, /* Fl */
100: { NULL, NULL }, /* Fn */
101: { NULL, NULL }, /* Ft */
102: { NULL, NULL }, /* Ic */
103: { NULL, NULL }, /* In */
104: { NULL, NULL }, /* Li */
105: { NULL, NULL }, /* Nd */
106: { NULL, post_nm }, /* Nm */
107: { NULL, NULL }, /* Op */
108: { NULL, NULL }, /* Ot */
1.46 kristaps 109: { NULL, post_pa }, /* Pa */
1.1 kristaps 110: { NULL, post_std }, /* Rv */
1.26 kristaps 111: { NULL, post_st }, /* St */
1.1 kristaps 112: { NULL, NULL }, /* Va */
113: { NULL, NULL }, /* Vt */
114: { NULL, NULL }, /* Xr */
115: { NULL, NULL }, /* %A */
116: { NULL, NULL }, /* %B */
117: { NULL, NULL }, /* %D */
118: { NULL, NULL }, /* %I */
119: { NULL, NULL }, /* %J */
120: { NULL, NULL }, /* %N */
121: { NULL, NULL }, /* %O */
122: { NULL, NULL }, /* %P */
123: { NULL, NULL }, /* %R */
124: { NULL, NULL }, /* %T */
125: { NULL, NULL }, /* %V */
126: { NULL, NULL }, /* Ac */
127: { NULL, NULL }, /* Ao */
128: { NULL, NULL }, /* Aq */
1.25 kristaps 129: { NULL, post_at }, /* At */
1.1 kristaps 130: { NULL, NULL }, /* Bc */
131: { NULL, NULL }, /* Bf */
132: { NULL, NULL }, /* Bo */
133: { NULL, NULL }, /* Bq */
134: { NULL, NULL }, /* Bsx */
135: { NULL, NULL }, /* Bx */
136: { NULL, NULL }, /* Db */
137: { NULL, NULL }, /* Dc */
138: { NULL, NULL }, /* Do */
139: { NULL, NULL }, /* Dq */
140: { NULL, NULL }, /* Ec */
141: { NULL, NULL }, /* Ef */
142: { NULL, NULL }, /* Em */
143: { NULL, NULL }, /* Eo */
144: { NULL, NULL }, /* Fx */
145: { NULL, NULL }, /* Ms */
146: { NULL, NULL }, /* No */
147: { NULL, NULL }, /* Ns */
148: { NULL, NULL }, /* Nx */
149: { NULL, NULL }, /* Ox */
150: { NULL, NULL }, /* Pc */
151: { NULL, NULL }, /* Pf */
152: { NULL, NULL }, /* Po */
153: { NULL, NULL }, /* Pq */
154: { NULL, NULL }, /* Qc */
155: { NULL, NULL }, /* Ql */
156: { NULL, NULL }, /* Qo */
157: { NULL, NULL }, /* Qq */
158: { NULL, NULL }, /* Re */
1.39 kristaps 159: { NULL, post_rs }, /* Rs */
1.1 kristaps 160: { NULL, NULL }, /* Sc */
161: { NULL, NULL }, /* So */
162: { NULL, NULL }, /* Sq */
163: { NULL, NULL }, /* Sm */
164: { NULL, NULL }, /* Sx */
165: { NULL, NULL }, /* Sy */
166: { NULL, NULL }, /* Tn */
167: { NULL, NULL }, /* Ux */
168: { NULL, NULL }, /* Xc */
169: { NULL, NULL }, /* Xo */
170: { NULL, NULL }, /* Fo */
171: { NULL, NULL }, /* Fc */
172: { NULL, NULL }, /* Oo */
173: { NULL, NULL }, /* Oc */
174: { NULL, NULL }, /* Bk */
175: { NULL, NULL }, /* Ek */
176: { NULL, NULL }, /* Bt */
177: { NULL, NULL }, /* Hf */
178: { NULL, NULL }, /* Fr */
179: { NULL, NULL }, /* Ud */
1.27 kristaps 180: { NULL, post_lb }, /* Lb */
1.1 kristaps 181: { NULL, NULL }, /* Lp */
1.44 kristaps 182: { NULL, NULL }, /* Lk */
1.1 kristaps 183: { NULL, NULL }, /* Mt */
184: { NULL, NULL }, /* Brq */
185: { NULL, NULL }, /* Bro */
186: { NULL, NULL }, /* Brc */
187: { NULL, NULL }, /* %C */
188: { NULL, NULL }, /* Es */
189: { NULL, NULL }, /* En */
190: { NULL, NULL }, /* Dx */
191: { NULL, NULL }, /* %Q */
1.30 kristaps 192: { NULL, NULL }, /* br */
193: { NULL, NULL }, /* sp */
1.43 kristaps 194: { NULL, NULL }, /* %U */
1.1 kristaps 195: };
196:
1.45 kristaps 197: #define RSORD_MAX 14
1.1 kristaps 198:
1.54 kristaps 199: static const enum mdoct rsord[RSORD_MAX] = {
1.39 kristaps 200: MDOC__A,
201: MDOC__T,
202: MDOC__B,
203: MDOC__I,
204: MDOC__J,
205: MDOC__R,
206: MDOC__N,
207: MDOC__V,
208: MDOC__P,
209: MDOC__Q,
210: MDOC__D,
211: MDOC__O,
1.45 kristaps 212: MDOC__C,
213: MDOC__U
1.39 kristaps 214: };
1.2 kristaps 215:
216:
1.1 kristaps 217: int
218: mdoc_action_pre(struct mdoc *m, const struct mdoc_node *n)
219: {
220:
221: switch (n->type) {
222: case (MDOC_ROOT):
1.2 kristaps 223: /* FALLTHROUGH */
1.1 kristaps 224: case (MDOC_TEXT):
1.2 kristaps 225: return(1);
226: default:
1.1 kristaps 227: break;
228: }
1.2 kristaps 229:
1.6 kristaps 230: if (NULL == mdoc_actions[n->tok].pre)
1.2 kristaps 231: return(1);
1.6 kristaps 232: return((*mdoc_actions[n->tok].pre)(m, n));
1.1 kristaps 233: }
234:
235:
236: int
237: mdoc_action_post(struct mdoc *m)
238: {
239:
240: if (MDOC_ACTED & m->last->flags)
241: return(1);
242: m->last->flags |= MDOC_ACTED;
243:
244: switch (m->last->type) {
245: case (MDOC_TEXT):
1.2 kristaps 246: /* FALLTHROUGH */
1.1 kristaps 247: case (MDOC_ROOT):
1.2 kristaps 248: return(1);
249: default:
1.1 kristaps 250: break;
251: }
1.2 kristaps 252:
253: if (NULL == mdoc_actions[m->last->tok].post)
254: return(1);
1.35 kristaps 255: return((*mdoc_actions[m->last->tok].post)(m, m->last));
1.2 kristaps 256: }
257:
258:
1.46 kristaps 259: /*
260: * Concatenate sibling nodes together. All siblings must be of type
261: * MDOC_TEXT or an assertion is raised. Concatenation is separated by a
262: * single whitespace.
263: */
1.2 kristaps 264: static int
1.46 kristaps 265: concat(struct mdoc *m, char *p, const struct mdoc_node *n, size_t sz)
1.2 kristaps 266: {
267:
1.46 kristaps 268: assert(sz);
269: p[0] = '\0';
1.2 kristaps 270: for ( ; n; n = n->next) {
271: assert(MDOC_TEXT == n->type);
1.46 kristaps 272: if (strlcat(p, n->string, sz) >= sz)
1.23 kristaps 273: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 274: if (NULL == n->next)
275: continue;
1.46 kristaps 276: if (strlcat(p, " ", sz) >= sz)
1.23 kristaps 277: return(mdoc_nerr(m, n, ETOOLONG));
1.2 kristaps 278: }
279:
1.1 kristaps 280: return(1);
281: }
282:
283:
1.46 kristaps 284: /*
285: * Macros accepting `-std' as an argument have the name of the current
286: * document (`Nm') filled in as the argument if it's not provided.
287: */
1.1 kristaps 288: static int
289: post_std(POST_ARGS)
290: {
1.35 kristaps 291: struct mdoc_node *nn;
1.1 kristaps 292:
1.35 kristaps 293: if (n->child)
1.1 kristaps 294: return(1);
1.35 kristaps 295:
296: nn = n;
297: m->next = MDOC_NEXT_CHILD;
1.1 kristaps 298: assert(m->meta.name);
1.35 kristaps 299: if ( ! mdoc_word_alloc(m, n->line, n->pos, m->meta.name))
300: return(0);
301: m->last = nn;
1.1 kristaps 302: return(1);
303: }
304:
305:
1.46 kristaps 306: /*
307: * The `Nm' macro's first use sets the name of the document. See also
308: * post_std(), etc.
309: */
1.1 kristaps 310: static int
311: post_nm(POST_ARGS)
312: {
1.46 kristaps 313: char buf[BUFSIZ];
1.1 kristaps 314:
315: if (m->meta.name)
316: return(1);
1.46 kristaps 317: if ( ! concat(m, buf, n->child, BUFSIZ))
1.2 kristaps 318: return(0);
1.46 kristaps 319: m->meta.name = mandoc_strdup(buf);
1.1 kristaps 320: return(1);
321: }
322:
323:
1.46 kristaps 324: /*
325: * Look up the value of `Lb' for matching predefined strings. If it has
326: * one, then substitute the current value for the formatted value. Note
327: * that the lookup may fail (we can provide arbitrary strings).
328: */
329: /* ARGSUSED */
1.1 kristaps 330: static int
1.27 kristaps 331: post_lb(POST_ARGS)
332: {
333: const char *p;
334: char *buf;
335: size_t sz;
336:
1.35 kristaps 337: assert(MDOC_TEXT == n->child->type);
338: p = mdoc_a2lib(n->child->string);
1.46 kristaps 339:
340: if (p) {
1.35 kristaps 341: free(n->child->string);
1.46 kristaps 342: n->child->string = mandoc_strdup(p);
1.27 kristaps 343: return(1);
344: }
345:
1.46 kristaps 346: sz = strlen(n->child->string) +
347: 2 + strlen("\\(lqlibrary\\(rq");
348: buf = mandoc_malloc(sz);
349: snprintf(buf, sz, "library \\(lq%s\\(rq", n->child->string);
1.35 kristaps 350: free(n->child->string);
1.46 kristaps 351: n->child->string = buf;
1.27 kristaps 352: return(1);
353: }
354:
355:
1.46 kristaps 356: /*
357: * Substitute the value of `St' for the corresponding formatted string.
358: * We're guaranteed that this exists (it's been verified during the
359: * validation phase).
360: */
361: /* ARGSUSED */
1.27 kristaps 362: static int
1.26 kristaps 363: post_st(POST_ARGS)
364: {
365: const char *p;
366:
1.35 kristaps 367: assert(MDOC_TEXT == n->child->type);
368: p = mdoc_a2st(n->child->string);
1.56 kristaps 369: if (p != NULL) {
370: free(n->child->string);
371: n->child->string = mandoc_strdup(p);
372: }
1.26 kristaps 373: return(1);
374: }
375:
376:
1.46 kristaps 377: /*
378: * Look up the standard string in a table. We know that it exists from
379: * the validation phase, so assert on failure. If a standard key wasn't
380: * supplied, supply the default ``AT&T UNIX''.
381: */
1.26 kristaps 382: static int
1.25 kristaps 383: post_at(POST_ARGS)
384: {
1.57 ! kristaps 385: struct mdoc_node *nn;
! 386: const char *p, *q;
! 387: char *buf;
! 388: size_t sz;
1.25 kristaps 389:
1.35 kristaps 390: if (n->child) {
391: assert(MDOC_TEXT == n->child->type);
392: p = mdoc_a2att(n->child->string);
1.57 ! kristaps 393: if (p) {
! 394: free(n->child->string);
! 395: n->child->string = mandoc_strdup(p);
! 396: } else {
! 397: p = "AT&T UNIX ";
! 398: q = n->child->string;
! 399: sz = strlen(p) + strlen(q) + 1;
! 400: buf = mandoc_malloc(sz);
! 401: strlcpy(buf, p, sz);
! 402: strlcat(buf, q, sz);
! 403: free(n->child->string);
! 404: n->child->string = buf;
! 405: }
1.25 kristaps 406: return(1);
407: }
408:
1.35 kristaps 409: nn = n;
1.25 kristaps 410: m->next = MDOC_NEXT_CHILD;
1.35 kristaps 411: if ( ! mdoc_word_alloc(m, nn->line, nn->pos, "AT&T UNIX"))
1.25 kristaps 412: return(0);
1.35 kristaps 413: m->last = nn;
1.25 kristaps 414: return(1);
415: }
416:
417:
1.46 kristaps 418: /*
419: * Mark the current section. The ``named'' section (lastnamed) is set
420: * whenever the current section isn't a custom section--we use this to
421: * keep track of section ordering. Also check that the section is
422: * allowed within the document's manual section.
423: */
1.25 kristaps 424: static int
1.1 kristaps 425: post_sh(POST_ARGS)
426: {
427: enum mdoc_sec sec;
1.46 kristaps 428: char buf[BUFSIZ];
1.1 kristaps 429:
1.35 kristaps 430: if (MDOC_HEAD != n->type)
1.1 kristaps 431: return(1);
1.5 kristaps 432:
1.46 kristaps 433: if ( ! concat(m, buf, n->child, BUFSIZ))
1.2 kristaps 434: return(0);
1.55 kristaps 435: sec = mdoc_str2sec(buf);
1.52 kristaps 436: /*
437: * The first section should always make us move into a non-new
438: * state.
439: */
440: if (SEC_NONE == m->lastnamed || SEC_CUSTOM != sec)
1.1 kristaps 441: m->lastnamed = sec;
442:
1.46 kristaps 443: /* Some sections only live in certain manual sections. */
444:
1.1 kristaps 445: switch ((m->lastsec = sec)) {
446: case (SEC_RETURN_VALUES):
447: /* FALLTHROUGH */
448: case (SEC_ERRORS):
449: switch (m->meta.msec) {
450: case (2):
451: /* FALLTHROUGH */
452: case (3):
453: /* FALLTHROUGH */
454: case (9):
455: break;
456: default:
1.35 kristaps 457: return(mdoc_nwarn(m, n, EBADSEC));
1.1 kristaps 458: }
459: break;
460: default:
461: break;
462: }
463: return(1);
464: }
465:
466:
1.46 kristaps 467: /*
468: * Parse out the contents of `Dt'. See in-line documentation for how we
469: * handle the various fields of this macro.
470: */
1.1 kristaps 471: static int
472: post_dt(POST_ARGS)
473: {
1.35 kristaps 474: struct mdoc_node *nn;
1.1 kristaps 475: const char *cp;
476: char *ep;
477: long lval;
478:
479: if (m->meta.title)
480: free(m->meta.title);
481: if (m->meta.vol)
482: free(m->meta.vol);
483: if (m->meta.arch)
484: free(m->meta.arch);
485:
486: m->meta.title = m->meta.vol = m->meta.arch = NULL;
487: m->meta.msec = 0;
488:
489: /* Handles: `.Dt'
490: * --> title = unknown, volume = local, msec = 0, arch = NULL
491: */
492:
1.35 kristaps 493: if (NULL == (nn = n->child)) {
1.46 kristaps 494: /* XXX: make these macro values. */
495: m->meta.title = mandoc_strdup("unknown");
496: m->meta.vol = mandoc_strdup("local");
1.35 kristaps 497: return(post_prol(m, n));
1.1 kristaps 498: }
499:
500: /* Handles: `.Dt TITLE'
501: * --> title = TITLE, volume = local, msec = 0, arch = NULL
502: */
503:
1.46 kristaps 504: m->meta.title = mandoc_strdup(nn->string);
1.1 kristaps 505:
1.35 kristaps 506: if (NULL == (nn = nn->next)) {
1.46 kristaps 507: /* XXX: make this a macro value. */
508: m->meta.vol = mandoc_strdup("local");
1.35 kristaps 509: return(post_prol(m, n));
1.1 kristaps 510: }
511:
512: /* Handles: `.Dt TITLE SEC'
513: * --> title = TITLE, volume = SEC is msec ?
514: * format(msec) : SEC,
515: * msec = SEC is msec ? atoi(msec) : 0,
516: * arch = NULL
517: */
518:
1.35 kristaps 519: cp = mdoc_a2msec(nn->string);
1.1 kristaps 520: if (cp) {
1.46 kristaps 521: /* FIXME: where is strtonum!? */
522: m->meta.vol = mandoc_strdup(cp);
1.35 kristaps 523: lval = strtol(nn->string, &ep, 10);
524: if (nn->string[0] != '\0' && *ep == '\0')
1.1 kristaps 525: m->meta.msec = (int)lval;
1.46 kristaps 526: } else
527: m->meta.vol = mandoc_strdup(nn->string);
1.1 kristaps 528:
1.35 kristaps 529: if (NULL == (nn = nn->next))
530: return(post_prol(m, n));
1.1 kristaps 531:
532: /* Handles: `.Dt TITLE SEC VOL'
533: * --> title = TITLE, volume = VOL is vol ?
534: * format(VOL) :
535: * VOL is arch ? format(arch) :
536: * VOL
537: */
538:
1.35 kristaps 539: cp = mdoc_a2vol(nn->string);
1.1 kristaps 540: if (cp) {
541: free(m->meta.vol);
1.46 kristaps 542: m->meta.vol = mandoc_strdup(cp);
1.1 kristaps 543: } else {
1.35 kristaps 544: cp = mdoc_a2arch(nn->string);
1.1 kristaps 545: if (NULL == cp) {
546: free(m->meta.vol);
1.46 kristaps 547: m->meta.vol = mandoc_strdup(nn->string);
548: } else
549: m->meta.arch = mandoc_strdup(cp);
1.1 kristaps 550: }
551:
552: /* Ignore any subsequent parameters... */
1.46 kristaps 553: /* FIXME: warn about subsequent parameters. */
1.1 kristaps 554:
1.35 kristaps 555: return(post_prol(m, n));
1.1 kristaps 556: }
557:
558:
1.46 kristaps 559: /*
560: * Set the operating system by way of the `Os' macro. Note that if an
561: * argument isn't provided and -DOSNAME="\"foo\"" is provided during
562: * compilation, this value will be used instead of filling in "sysname
563: * release" from uname().
564: */
1.1 kristaps 565: static int
566: post_os(POST_ARGS)
567: {
1.46 kristaps 568: char buf[BUFSIZ];
569: #ifndef OSNAME
1.1 kristaps 570: struct utsname utsname;
1.42 kristaps 571: #endif
572:
1.1 kristaps 573: if (m->meta.os)
574: free(m->meta.os);
1.4 kristaps 575:
1.46 kristaps 576: if ( ! concat(m, buf, n->child, BUFSIZ))
1.2 kristaps 577: return(0);
1.1 kristaps 578:
1.46 kristaps 579: if ('\0' == buf[0]) {
580: #ifdef OSNAME
581: if (strlcat(buf, OSNAME, BUFSIZ) >= BUFSIZ)
1.42 kristaps 582: return(mdoc_nerr(m, n, EUTSNAME));
1.46 kristaps 583: #else /*!OSNAME */
1.1 kristaps 584: if (-1 == uname(&utsname))
1.35 kristaps 585: return(mdoc_nerr(m, n, EUTSNAME));
1.46 kristaps 586: if (strlcat(buf, utsname.sysname, BUFSIZ) >= BUFSIZ)
1.35 kristaps 587: return(mdoc_nerr(m, n, ETOOLONG));
1.46 kristaps 588: if (strlcat(buf, " ", 64) >= BUFSIZ)
1.35 kristaps 589: return(mdoc_nerr(m, n, ETOOLONG));
1.46 kristaps 590: if (strlcat(buf, utsname.release, BUFSIZ) >= BUFSIZ)
1.35 kristaps 591: return(mdoc_nerr(m, n, ETOOLONG));
1.46 kristaps 592: #endif /*!OSNAME*/
1.1 kristaps 593: }
594:
1.46 kristaps 595: m->meta.os = mandoc_strdup(buf);
1.35 kristaps 596: return(post_prol(m, n));
1.1 kristaps 597: }
598:
599:
600: /*
601: * Calculate the -width for a `Bl -tag' list if it hasn't been provided.
1.46 kristaps 602: * Uses the first head macro. NOTE AGAIN: this is ONLY if the -width
603: * argument has NOT been provided. See post_bl_width() for converting
604: * the -width string.
1.1 kristaps 605: */
606: static int
1.35 kristaps 607: post_bl_tagwidth(POST_ARGS)
1.1 kristaps 608: {
1.46 kristaps 609: struct mdoc_node *nn;
610: size_t sz;
611: int i;
612: char buf[NUMSIZ];
1.1 kristaps 613:
1.46 kristaps 614: /* Defaults to ten ens. */
1.1 kristaps 615:
1.46 kristaps 616: sz = 10; /* XXX: make this a macro value. */
1.35 kristaps 617: nn = n->body->child;
1.46 kristaps 618:
1.35 kristaps 619: if (nn) {
620: assert(MDOC_BLOCK == nn->type);
621: assert(MDOC_It == nn->tok);
622: nn = nn->head->child;
623: if (MDOC_TEXT != nn->type) {
1.46 kristaps 624: sz = mdoc_macro2len(nn->tok);
625: if (sz == 0) {
1.35 kristaps 626: if ( ! mdoc_nwarn(m, n, ENOWIDTH))
1.1 kristaps 627: return(0);
1.46 kristaps 628: sz = 10;
629: }
1.1 kristaps 630: } else
1.46 kristaps 631: sz = strlen(nn->string) + 1;
1.1 kristaps 632: }
633:
1.46 kristaps 634: snprintf(buf, NUMSIZ, "%zun", sz);
1.1 kristaps 635:
636: /*
637: * We have to dynamically add this to the macro's argument list.
638: * We're guaranteed that a MDOC_Width doesn't already exist.
639: */
640:
1.35 kristaps 641: nn = n;
642: assert(nn->args);
1.46 kristaps 643: i = (int)(nn->args->argc)++;
1.1 kristaps 644:
1.46 kristaps 645: nn->args->argv = mandoc_realloc(nn->args->argv,
1.35 kristaps 646: nn->args->argc * sizeof(struct mdoc_argv));
1.1 kristaps 647:
1.46 kristaps 648: nn->args->argv[i].arg = MDOC_Width;
649: nn->args->argv[i].line = n->line;
650: nn->args->argv[i].pos = n->pos;
651: nn->args->argv[i].sz = 1;
652: nn->args->argv[i].value = mandoc_malloc(sizeof(char *));
653: nn->args->argv[i].value[0] = mandoc_strdup(buf);
1.1 kristaps 654: return(1);
655: }
656:
657:
1.46 kristaps 658: /*
659: * Calculate the real width of a list from the -width string, which may
660: * contain a macro (with a known default width), a literal string, or a
661: * scaling width.
662: */
1.1 kristaps 663: static int
1.35 kristaps 664: post_bl_width(POST_ARGS)
1.1 kristaps 665: {
666: size_t width;
1.51 kristaps 667: int i;
668: enum mdoct tok;
1.46 kristaps 669: char buf[NUMSIZ];
1.1 kristaps 670: char *p;
671:
1.35 kristaps 672: if (NULL == n->args)
1.1 kristaps 673: return(1);
674:
1.35 kristaps 675: for (i = 0; i < (int)n->args->argc; i++)
676: if (MDOC_Width == n->args->argv[i].arg)
1.1 kristaps 677: break;
678:
1.35 kristaps 679: if (i == (int)n->args->argc)
1.1 kristaps 680: return(1);
1.35 kristaps 681: p = n->args->argv[i].value[0];
1.1 kristaps 682:
683: /*
684: * If the value to -width is a macro, then we re-write it to be
685: * the macro's width as set in share/tmac/mdoc/doc-common.
686: */
687:
1.2 kristaps 688: if (0 == strcmp(p, "Ds"))
1.46 kristaps 689: /* XXX: make into a macro. */
1.18 kristaps 690: width = 6;
1.36 kristaps 691: else if (MDOC_MAX == (tok = mdoc_hash_find(p)))
1.1 kristaps 692: return(1);
693: else if (0 == (width = mdoc_macro2len(tok)))
1.35 kristaps 694: return(mdoc_nwarn(m, n, ENOWIDTH));
1.1 kristaps 695:
696: /* The value already exists: free and reallocate it. */
697:
1.46 kristaps 698: snprintf(buf, NUMSIZ, "%zun", width);
1.35 kristaps 699: free(n->args->argv[i].value[0]);
1.46 kristaps 700: n->args->argv[i].value[0] = mandoc_strdup(buf);
1.1 kristaps 701: return(1);
702: }
703:
704:
1.46 kristaps 705: /*
706: * Do processing for -column lists, which can have two distinct styles
707: * of invocation. Merge this two styles into a consistent form.
708: */
1.35 kristaps 709: /* ARGSUSED */
1.1 kristaps 710: static int
1.14 kristaps 711: post_bl_head(POST_ARGS)
712: {
713: int i, c;
1.35 kristaps 714: struct mdoc_node *np, *nn, *nnp;
1.14 kristaps 715:
1.35 kristaps 716: if (NULL == n->child)
1.14 kristaps 717: return(1);
718:
1.35 kristaps 719: np = n->parent;
720: assert(np->args);
1.14 kristaps 721:
1.35 kristaps 722: for (c = 0; c < (int)np->args->argc; c++)
723: if (MDOC_Column == np->args->argv[c].arg)
1.14 kristaps 724: break;
725:
1.35 kristaps 726: if (c == (int)np->args->argc)
1.14 kristaps 727: return(1);
1.35 kristaps 728: assert(0 == np->args->argv[c].sz);
1.14 kristaps 729:
730: /*
731: * Accomodate for new-style groff column syntax. Shuffle the
732: * child nodes, all of which must be TEXT, as arguments for the
733: * column field. Then, delete the head children.
734: */
735:
1.35 kristaps 736: np->args->argv[c].sz = (size_t)n->nchild;
1.46 kristaps 737: np->args->argv[c].value = mandoc_malloc
1.35 kristaps 738: ((size_t)n->nchild * sizeof(char *));
1.14 kristaps 739:
1.35 kristaps 740: for (i = 0, nn = n->child; nn; i++) {
741: np->args->argv[c].value[i] = nn->string;
1.14 kristaps 742: nn->string = NULL;
743: nnp = nn;
744: nn = nn->next;
1.53 kristaps 745: mdoc_node_delete(NULL, nnp);
1.14 kristaps 746: }
747:
1.35 kristaps 748: n->nchild = 0;
749: n->child = NULL;
1.14 kristaps 750: return(1);
751: }
752:
753:
754: static int
1.1 kristaps 755: post_bl(POST_ARGS)
756: {
757: int i, r, len;
758:
1.35 kristaps 759: if (MDOC_HEAD == n->type)
760: return(post_bl_head(m, n));
761: if (MDOC_BLOCK != n->type)
1.1 kristaps 762: return(1);
763:
764: /*
765: * These are fairly complicated, so we've broken them into two
766: * functions. post_bl_tagwidth() is called when a -tag is
767: * specified, but no -width (it must be guessed). The second
768: * when a -width is specified (macro indicators must be
769: * rewritten into real lengths).
770: */
771:
1.35 kristaps 772: len = (int)(n->args ? n->args->argc : 0);
1.1 kristaps 773:
774: for (r = i = 0; i < len; i++) {
1.35 kristaps 775: if (MDOC_Tag == n->args->argv[i].arg)
1.1 kristaps 776: r |= 1 << 0;
1.35 kristaps 777: if (MDOC_Width == n->args->argv[i].arg)
1.1 kristaps 778: r |= 1 << 1;
779: }
780:
781: if (r & (1 << 0) && ! (r & (1 << 1))) {
1.35 kristaps 782: if ( ! post_bl_tagwidth(m, n))
1.1 kristaps 783: return(0);
784: } else if (r & (1 << 1))
1.35 kristaps 785: if ( ! post_bl_width(m, n))
1.1 kristaps 786: return(0);
787:
788: return(1);
789: }
790:
791:
1.46 kristaps 792: /*
793: * The `Pa' macro defaults to a tilde if no value is provided as an
794: * argument.
795: */
1.1 kristaps 796: static int
1.46 kristaps 797: post_pa(POST_ARGS)
1.10 kristaps 798: {
1.35 kristaps 799: struct mdoc_node *np;
1.10 kristaps 800:
1.35 kristaps 801: if (n->child)
1.10 kristaps 802: return(1);
803:
1.35 kristaps 804: np = n;
1.10 kristaps 805: m->next = MDOC_NEXT_CHILD;
1.46 kristaps 806: /* XXX: make into macro value. */
1.35 kristaps 807: if ( ! mdoc_word_alloc(m, n->line, n->pos, "~"))
1.10 kristaps 808: return(0);
1.35 kristaps 809: m->last = np;
1.10 kristaps 810: return(1);
811: }
812:
813:
1.46 kristaps 814: /*
815: * The `Ar' macro defaults to two strings "file ..." if no value is
816: * provided as an argument.
817: */
1.10 kristaps 818: static int
1.1 kristaps 819: post_ar(POST_ARGS)
820: {
1.35 kristaps 821: struct mdoc_node *np;
1.1 kristaps 822:
1.35 kristaps 823: if (n->child)
1.1 kristaps 824: return(1);
825:
1.35 kristaps 826: np = n;
1.1 kristaps 827: m->next = MDOC_NEXT_CHILD;
1.46 kristaps 828: /* XXX: make into macro values. */
1.35 kristaps 829: if ( ! mdoc_word_alloc(m, n->line, n->pos, "file"))
1.1 kristaps 830: return(0);
1.35 kristaps 831: if ( ! mdoc_word_alloc(m, n->line, n->pos, "..."))
1.1 kristaps 832: return(0);
1.35 kristaps 833: m->last = np;
1.1 kristaps 834: return(1);
835: }
836:
837:
1.46 kristaps 838: /*
1.49 kristaps 839: * Parse the date field in `Dd'.
1.46 kristaps 840: */
1.1 kristaps 841: static int
842: post_dd(POST_ARGS)
843: {
1.46 kristaps 844: char buf[DATESIZ];
1.1 kristaps 845:
1.46 kristaps 846: if ( ! concat(m, buf, n->child, DATESIZ))
1.2 kristaps 847: return(0);
1.1 kristaps 848:
1.49 kristaps 849: m->meta.date = mandoc_a2time
850: (MTIME_MDOCDATE | MTIME_CANONICAL, buf);
851:
1.46 kristaps 852: if (0 == m->meta.date) {
1.35 kristaps 853: if ( ! mdoc_nwarn(m, n, EBADDATE))
1.1 kristaps 854: return(0);
855: m->meta.date = time(NULL);
856: }
857:
1.35 kristaps 858: return(post_prol(m, n));
1.1 kristaps 859: }
860:
861:
1.46 kristaps 862: /*
863: * Remove prologue macros from the document after they're processed.
864: * The final document uses mdoc_meta for these values and discards the
865: * originals.
866: */
1.1 kristaps 867: static int
868: post_prol(POST_ARGS)
869: {
1.34 kristaps 870:
1.53 kristaps 871: mdoc_node_delete(m, n);
1.34 kristaps 872: if (m->meta.title && m->meta.date && m->meta.os)
873: m->flags |= MDOC_PBODY;
1.1 kristaps 874: return(1);
875: }
876:
877:
1.46 kristaps 878: /*
879: * Trigger a literal context.
880: */
1.1 kristaps 881: static int
882: pre_dl(PRE_ARGS)
883: {
884:
1.16 kristaps 885: if (MDOC_BODY == n->type)
886: m->flags |= MDOC_LITERAL;
1.1 kristaps 887: return(1);
888: }
889:
890:
1.47 kristaps 891: /* ARGSUSED */
1.1 kristaps 892: static int
1.38 kristaps 893: pre_offset(PRE_ARGS)
894: {
895: int i;
896:
897: /*
898: * Make sure that an empty offset produces an 8n length space as
899: * stipulated by mdoc.samples.
900: */
901:
902: assert(n->args);
903: for (i = 0; i < (int)n->args->argc; i++) {
904: if (MDOC_Offset != n->args->argv[i].arg)
905: continue;
906: if (n->args->argv[i].sz)
907: break;
908: assert(1 == n->args->refcnt);
909: /* If no value set, length of <string>. */
910: n->args->argv[i].sz++;
1.46 kristaps 911: n->args->argv[i].value = mandoc_malloc(sizeof(char *));
912: n->args->argv[i].value[0] = mandoc_strdup("8n");
1.38 kristaps 913: break;
914: }
915:
916: return(1);
917: }
918:
919:
920: static int
921: pre_bl(PRE_ARGS)
922: {
923:
924: return(MDOC_BLOCK == n->type ? pre_offset(m, n) : 1);
925: }
926:
927:
928: static int
1.1 kristaps 929: pre_bd(PRE_ARGS)
930: {
931: int i;
932:
1.38 kristaps 933: if (MDOC_BLOCK == n->type)
934: return(pre_offset(m, n));
1.1 kristaps 935: if (MDOC_BODY != n->type)
936: return(1);
937:
1.32 kristaps 938: /* Enter literal context if `Bd -literal' or `-unfilled'. */
939:
1.2 kristaps 940: for (n = n->parent, i = 0; i < (int)n->args->argc; i++)
1.1 kristaps 941: if (MDOC_Literal == n->args->argv[i].arg)
1.38 kristaps 942: m->flags |= MDOC_LITERAL;
1.1 kristaps 943: else if (MDOC_Unfilled == n->args->argv[i].arg)
1.38 kristaps 944: m->flags |= MDOC_LITERAL;
1.1 kristaps 945:
946: return(1);
947: }
948:
949:
950: static int
951: post_display(POST_ARGS)
952: {
953:
1.35 kristaps 954: if (MDOC_BODY == n->type)
1.1 kristaps 955: m->flags &= ~MDOC_LITERAL;
956: return(1);
957: }
958:
959:
1.39 kristaps 960: static inline int
1.54 kristaps 961: order_rs(enum mdoct t)
1.39 kristaps 962: {
963: int i;
964:
1.54 kristaps 965: for (i = 0; i < (int)RSORD_MAX; i++)
1.39 kristaps 966: if (rsord[i] == t)
967: return(i);
968:
969: abort();
970: /* NOTREACHED */
971: }
972:
973:
1.41 kristaps 974: /* ARGSUSED */
1.39 kristaps 975: static int
976: post_rs(POST_ARGS)
977: {
978: struct mdoc_node *nn, *next, *prev;
979: int o;
980:
981: if (MDOC_BLOCK != n->type)
982: return(1);
983:
1.40 kristaps 984: assert(n->body->child);
1.39 kristaps 985: for (next = NULL, nn = n->body->child->next; nn; nn = next) {
986: o = order_rs(nn->tok);
987:
988: /* Remove `nn' from the chain. */
989: next = nn->next;
990: if (next)
991: next->prev = nn->prev;
992:
993: prev = nn->prev;
994: if (prev)
995: prev->next = nn->next;
996:
997: nn->prev = nn->next = NULL;
998:
999: /*
1000: * Scan back until we reach a node that's ordered before
1001: * us, then set ourselves as being the next.
1002: */
1003: for ( ; prev; prev = prev->prev)
1004: if (order_rs(prev->tok) <= o)
1005: break;
1006:
1007: nn->prev = prev;
1008: if (prev) {
1009: if (prev->next)
1010: prev->next->prev = nn;
1011: nn->next = prev->next;
1012: prev->next = nn;
1013: continue;
1014: }
1015:
1016: n->body->child->prev = nn;
1017: nn->next = n->body->child;
1018: n->body->child = nn;
1019: }
1020: return(1);
1021: }
CVSweb
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to mdoc_action.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [cvsweb.bsd.lv] / mandoc