xref: /netbsd-src/external/bsd/mdocml/dist/mdoc_html.c (revision bbde328be4e75ea9ad02e9715ea13ca54b797ada)
1 /*	$Vendor-Id: mdoc_html.c,v 1.60 2010/04/07 07:49:38 kristaps Exp $ */
2 /*
3  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
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.
16  */
17 #ifdef HAVE_CONFIG_H
18 #include "config.h"
19 #endif
20 
21 #include <sys/types.h>
22 
23 #include <assert.h>
24 #include <ctype.h>
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28 #include <unistd.h>
29 
30 #include "out.h"
31 #include "html.h"
32 #include "mdoc.h"
33 #include "main.h"
34 
35 #define	INDENT		 5
36 #define	HALFINDENT	 3
37 
38 #define	MDOC_ARGS	  const struct mdoc_meta *m, \
39 			  const struct mdoc_node *n, \
40 			  struct html *h
41 
42 #ifndef MIN
43 #define	MIN(a,b)	((/*CONSTCOND*/(a)<(b))?(a):(b))
44 #endif
45 
46 struct	htmlmdoc {
47 	int		(*pre)(MDOC_ARGS);
48 	void		(*post)(MDOC_ARGS);
49 };
50 
51 static	void		  print_mdoc(MDOC_ARGS);
52 static	void		  print_mdoc_head(MDOC_ARGS);
53 static	void		  print_mdoc_node(MDOC_ARGS);
54 static	void		  print_mdoc_nodelist(MDOC_ARGS);
55 
56 static	void		  a2width(const char *, struct roffsu *);
57 static	void		  a2offs(const char *, struct roffsu *);
58 
59 static	int		  a2list(const struct mdoc_node *);
60 
61 static	void		  mdoc_root_post(MDOC_ARGS);
62 static	int		  mdoc_root_pre(MDOC_ARGS);
63 
64 static	void		  mdoc__x_post(MDOC_ARGS);
65 static	int		  mdoc__x_pre(MDOC_ARGS);
66 static	int		  mdoc_ad_pre(MDOC_ARGS);
67 static	int		  mdoc_an_pre(MDOC_ARGS);
68 static	int		  mdoc_ap_pre(MDOC_ARGS);
69 static	void		  mdoc_aq_post(MDOC_ARGS);
70 static	int		  mdoc_aq_pre(MDOC_ARGS);
71 static	int		  mdoc_ar_pre(MDOC_ARGS);
72 static	int		  mdoc_bd_pre(MDOC_ARGS);
73 static	int		  mdoc_bf_pre(MDOC_ARGS);
74 static	void		  mdoc_bl_post(MDOC_ARGS);
75 static	int		  mdoc_bl_pre(MDOC_ARGS);
76 static	void		  mdoc_bq_post(MDOC_ARGS);
77 static	int		  mdoc_bq_pre(MDOC_ARGS);
78 static	void		  mdoc_brq_post(MDOC_ARGS);
79 static	int		  mdoc_brq_pre(MDOC_ARGS);
80 static	int		  mdoc_bt_pre(MDOC_ARGS);
81 static	int		  mdoc_bx_pre(MDOC_ARGS);
82 static	int		  mdoc_cd_pre(MDOC_ARGS);
83 static	int		  mdoc_d1_pre(MDOC_ARGS);
84 static	void		  mdoc_dq_post(MDOC_ARGS);
85 static	int		  mdoc_dq_pre(MDOC_ARGS);
86 static	int		  mdoc_dv_pre(MDOC_ARGS);
87 static	int		  mdoc_fa_pre(MDOC_ARGS);
88 static	int		  mdoc_fd_pre(MDOC_ARGS);
89 static	int		  mdoc_fl_pre(MDOC_ARGS);
90 static	int		  mdoc_fn_pre(MDOC_ARGS);
91 static	int		  mdoc_ft_pre(MDOC_ARGS);
92 static	int		  mdoc_em_pre(MDOC_ARGS);
93 static	int		  mdoc_er_pre(MDOC_ARGS);
94 static	int		  mdoc_ev_pre(MDOC_ARGS);
95 static	int		  mdoc_ex_pre(MDOC_ARGS);
96 static	void		  mdoc_fo_post(MDOC_ARGS);
97 static	int		  mdoc_fo_pre(MDOC_ARGS);
98 static	int		  mdoc_ic_pre(MDOC_ARGS);
99 static	int		  mdoc_in_pre(MDOC_ARGS);
100 static	int		  mdoc_it_block_pre(MDOC_ARGS, int, int,
101 				struct roffsu *, struct roffsu *);
102 static	int		  mdoc_it_head_pre(MDOC_ARGS, int,
103 				struct roffsu *);
104 static	int		  mdoc_it_body_pre(MDOC_ARGS, int);
105 static	int		  mdoc_it_pre(MDOC_ARGS);
106 static	int		  mdoc_lb_pre(MDOC_ARGS);
107 static	int		  mdoc_li_pre(MDOC_ARGS);
108 static	int		  mdoc_lk_pre(MDOC_ARGS);
109 static	int		  mdoc_mt_pre(MDOC_ARGS);
110 static	int		  mdoc_ms_pre(MDOC_ARGS);
111 static	int		  mdoc_nd_pre(MDOC_ARGS);
112 static	int		  mdoc_nm_pre(MDOC_ARGS);
113 static	int		  mdoc_ns_pre(MDOC_ARGS);
114 static	void		  mdoc_op_post(MDOC_ARGS);
115 static	int		  mdoc_op_pre(MDOC_ARGS);
116 static	int		  mdoc_pa_pre(MDOC_ARGS);
117 static	void		  mdoc_pf_post(MDOC_ARGS);
118 static	int		  mdoc_pf_pre(MDOC_ARGS);
119 static	void		  mdoc_pq_post(MDOC_ARGS);
120 static	int		  mdoc_pq_pre(MDOC_ARGS);
121 static	int		  mdoc_rs_pre(MDOC_ARGS);
122 static	int		  mdoc_rv_pre(MDOC_ARGS);
123 static	int		  mdoc_sh_pre(MDOC_ARGS);
124 static	int		  mdoc_sp_pre(MDOC_ARGS);
125 static	void		  mdoc_sq_post(MDOC_ARGS);
126 static	int		  mdoc_sq_pre(MDOC_ARGS);
127 static	int		  mdoc_ss_pre(MDOC_ARGS);
128 static	int		  mdoc_sx_pre(MDOC_ARGS);
129 static	int		  mdoc_sy_pre(MDOC_ARGS);
130 static	int		  mdoc_ud_pre(MDOC_ARGS);
131 static	int		  mdoc_va_pre(MDOC_ARGS);
132 static	int		  mdoc_vt_pre(MDOC_ARGS);
133 static	int		  mdoc_xr_pre(MDOC_ARGS);
134 static	int		  mdoc_xx_pre(MDOC_ARGS);
135 
136 static	const struct htmlmdoc mdocs[MDOC_MAX] = {
137 	{mdoc_ap_pre, NULL}, /* Ap */
138 	{NULL, NULL}, /* Dd */
139 	{NULL, NULL}, /* Dt */
140 	{NULL, NULL}, /* Os */
141 	{mdoc_sh_pre, NULL }, /* Sh */
142 	{mdoc_ss_pre, NULL }, /* Ss */
143 	{mdoc_sp_pre, NULL}, /* Pp */
144 	{mdoc_d1_pre, NULL}, /* D1 */
145 	{mdoc_d1_pre, NULL}, /* Dl */
146 	{mdoc_bd_pre, NULL}, /* Bd */
147 	{NULL, NULL}, /* Ed */
148 	{mdoc_bl_pre, mdoc_bl_post}, /* Bl */
149 	{NULL, NULL}, /* El */
150 	{mdoc_it_pre, NULL}, /* It */
151 	{mdoc_ad_pre, NULL}, /* Ad */
152 	{mdoc_an_pre, NULL}, /* An */
153 	{mdoc_ar_pre, NULL}, /* Ar */
154 	{mdoc_cd_pre, NULL}, /* Cd */
155 	{mdoc_fl_pre, NULL}, /* Cm */
156 	{mdoc_dv_pre, NULL}, /* Dv */
157 	{mdoc_er_pre, NULL}, /* Er */
158 	{mdoc_ev_pre, NULL}, /* Ev */
159 	{mdoc_ex_pre, NULL}, /* Ex */
160 	{mdoc_fa_pre, NULL}, /* Fa */
161 	{mdoc_fd_pre, NULL}, /* Fd */
162 	{mdoc_fl_pre, NULL}, /* Fl */
163 	{mdoc_fn_pre, NULL}, /* Fn */
164 	{mdoc_ft_pre, NULL}, /* Ft */
165 	{mdoc_ic_pre, NULL}, /* Ic */
166 	{mdoc_in_pre, NULL}, /* In */
167 	{mdoc_li_pre, NULL}, /* Li */
168 	{mdoc_nd_pre, NULL}, /* Nd */
169 	{mdoc_nm_pre, NULL}, /* Nm */
170 	{mdoc_op_pre, mdoc_op_post}, /* Op */
171 	{NULL, NULL}, /* Ot */
172 	{mdoc_pa_pre, NULL}, /* Pa */
173 	{mdoc_rv_pre, NULL}, /* Rv */
174 	{NULL, NULL}, /* St */
175 	{mdoc_va_pre, NULL}, /* Va */
176 	{mdoc_vt_pre, NULL}, /* Vt */
177 	{mdoc_xr_pre, NULL}, /* Xr */
178 	{mdoc__x_pre, mdoc__x_post}, /* %A */
179 	{mdoc__x_pre, mdoc__x_post}, /* %B */
180 	{mdoc__x_pre, mdoc__x_post}, /* %D */
181 	{mdoc__x_pre, mdoc__x_post}, /* %I */
182 	{mdoc__x_pre, mdoc__x_post}, /* %J */
183 	{mdoc__x_pre, mdoc__x_post}, /* %N */
184 	{mdoc__x_pre, mdoc__x_post}, /* %O */
185 	{mdoc__x_pre, mdoc__x_post}, /* %P */
186 	{mdoc__x_pre, mdoc__x_post}, /* %R */
187 	{mdoc__x_pre, mdoc__x_post}, /* %T */
188 	{mdoc__x_pre, mdoc__x_post}, /* %V */
189 	{NULL, NULL}, /* Ac */
190 	{mdoc_aq_pre, mdoc_aq_post}, /* Ao */
191 	{mdoc_aq_pre, mdoc_aq_post}, /* Aq */
192 	{NULL, NULL}, /* At */
193 	{NULL, NULL}, /* Bc */
194 	{mdoc_bf_pre, NULL}, /* Bf */
195 	{mdoc_bq_pre, mdoc_bq_post}, /* Bo */
196 	{mdoc_bq_pre, mdoc_bq_post}, /* Bq */
197 	{mdoc_xx_pre, NULL}, /* Bsx */
198 	{mdoc_bx_pre, NULL}, /* Bx */
199 	{NULL, NULL}, /* Db */
200 	{NULL, NULL}, /* Dc */
201 	{mdoc_dq_pre, mdoc_dq_post}, /* Do */
202 	{mdoc_dq_pre, mdoc_dq_post}, /* Dq */
203 	{NULL, NULL}, /* Ec */ /* FIXME: no space */
204 	{NULL, NULL}, /* Ef */
205 	{mdoc_em_pre, NULL}, /* Em */
206 	{NULL, NULL}, /* Eo */
207 	{mdoc_xx_pre, NULL}, /* Fx */
208 	{mdoc_ms_pre, NULL}, /* Ms */ /* FIXME: convert to symbol? */
209 	{NULL, NULL}, /* No */
210 	{mdoc_ns_pre, NULL}, /* Ns */
211 	{mdoc_xx_pre, NULL}, /* Nx */
212 	{mdoc_xx_pre, NULL}, /* Ox */
213 	{NULL, NULL}, /* Pc */
214 	{mdoc_pf_pre, mdoc_pf_post}, /* Pf */
215 	{mdoc_pq_pre, mdoc_pq_post}, /* Po */
216 	{mdoc_pq_pre, mdoc_pq_post}, /* Pq */
217 	{NULL, NULL}, /* Qc */
218 	{mdoc_sq_pre, mdoc_sq_post}, /* Ql */
219 	{mdoc_dq_pre, mdoc_dq_post}, /* Qo */
220 	{mdoc_dq_pre, mdoc_dq_post}, /* Qq */
221 	{NULL, NULL}, /* Re */
222 	{mdoc_rs_pre, NULL}, /* Rs */
223 	{NULL, NULL}, /* Sc */
224 	{mdoc_sq_pre, mdoc_sq_post}, /* So */
225 	{mdoc_sq_pre, mdoc_sq_post}, /* Sq */
226 	{NULL, NULL}, /* Sm */ /* FIXME - no idea. */
227 	{mdoc_sx_pre, NULL}, /* Sx */
228 	{mdoc_sy_pre, NULL}, /* Sy */
229 	{NULL, NULL}, /* Tn */
230 	{mdoc_xx_pre, NULL}, /* Ux */
231 	{NULL, NULL}, /* Xc */
232 	{NULL, NULL}, /* Xo */
233 	{mdoc_fo_pre, mdoc_fo_post}, /* Fo */
234 	{NULL, NULL}, /* Fc */
235 	{mdoc_op_pre, mdoc_op_post}, /* Oo */
236 	{NULL, NULL}, /* Oc */
237 	{NULL, NULL}, /* Bk */
238 	{NULL, NULL}, /* Ek */
239 	{mdoc_bt_pre, NULL}, /* Bt */
240 	{NULL, NULL}, /* Hf */
241 	{NULL, NULL}, /* Fr */
242 	{mdoc_ud_pre, NULL}, /* Ud */
243 	{mdoc_lb_pre, NULL}, /* Lb */
244 	{mdoc_sp_pre, NULL}, /* Lp */
245 	{mdoc_lk_pre, NULL}, /* Lk */
246 	{mdoc_mt_pre, NULL}, /* Mt */
247 	{mdoc_brq_pre, mdoc_brq_post}, /* Brq */
248 	{mdoc_brq_pre, mdoc_brq_post}, /* Bro */
249 	{NULL, NULL}, /* Brc */
250 	{mdoc__x_pre, mdoc__x_post}, /* %C */
251 	{NULL, NULL}, /* Es */  /* TODO */
252 	{NULL, NULL}, /* En */  /* TODO */
253 	{mdoc_xx_pre, NULL}, /* Dx */
254 	{mdoc__x_pre, mdoc__x_post}, /* %Q */
255 	{mdoc_sp_pre, NULL}, /* br */
256 	{mdoc_sp_pre, NULL}, /* sp */
257 	{mdoc__x_pre, mdoc__x_post}, /* %U */
258 };
259 
260 
261 void
262 html_mdoc(void *arg, const struct mdoc *m)
263 {
264 	struct html 	*h;
265 	struct tag	*t;
266 
267 	h = (struct html *)arg;
268 
269 	print_gen_decls(h);
270 	t = print_otag(h, TAG_HTML, 0, NULL);
271 	print_mdoc(mdoc_meta(m), mdoc_node(m), h);
272 	print_tagq(h, t);
273 
274 	printf("\n");
275 }
276 
277 
278 /*
279  * Return the list type for `Bl', e.g., `Bl -column' returns
280  * MDOC_Column.  This can ONLY be run for lists; it will abort() if no
281  * list type is found.
282  */
283 static int
284 a2list(const struct mdoc_node *n)
285 {
286 	int		 i;
287 
288 	assert(n->args);
289 	for (i = 0; i < (int)n->args->argc; i++)
290 		switch (n->args->argv[i].arg) {
291 		case (MDOC_Enum):
292 			/* FALLTHROUGH */
293 		case (MDOC_Dash):
294 			/* FALLTHROUGH */
295 		case (MDOC_Hyphen):
296 			/* FALLTHROUGH */
297 		case (MDOC_Bullet):
298 			/* FALLTHROUGH */
299 		case (MDOC_Tag):
300 			/* FALLTHROUGH */
301 		case (MDOC_Hang):
302 			/* FALLTHROUGH */
303 		case (MDOC_Inset):
304 			/* FALLTHROUGH */
305 		case (MDOC_Diag):
306 			/* FALLTHROUGH */
307 		case (MDOC_Item):
308 			/* FALLTHROUGH */
309 		case (MDOC_Column):
310 			/* FALLTHROUGH */
311 		case (MDOC_Ohang):
312 			return(n->args->argv[i].arg);
313 		default:
314 			break;
315 		}
316 
317 	abort();
318 	/* NOTREACHED */
319 }
320 
321 
322 /*
323  * Calculate the scaling unit passed in a `-width' argument.  This uses
324  * either a native scaling unit (e.g., 1i, 2m) or the string length of
325  * the value.
326  */
327 static void
328 a2width(const char *p, struct roffsu *su)
329 {
330 
331 	if ( ! a2roffsu(p, su, SCALE_MAX)) {
332 		su->unit = SCALE_EM;
333 		su->scale = (int)strlen(p);
334 	}
335 }
336 
337 
338 /*
339  * Calculate the scaling unit passed in an `-offset' argument.  This
340  * uses either a native scaling unit (e.g., 1i, 2m), one of a set of
341  * predefined strings (indent, etc.), or the string length of the value.
342  */
343 static void
344 a2offs(const char *p, struct roffsu *su)
345 {
346 
347 	/* FIXME: "right"? */
348 
349 	if (0 == strcmp(p, "left"))
350 		SCALE_HS_INIT(su, 0);
351 	else if (0 == strcmp(p, "indent"))
352 		SCALE_HS_INIT(su, INDENT);
353 	else if (0 == strcmp(p, "indent-two"))
354 		SCALE_HS_INIT(su, INDENT * 2);
355 	else if ( ! a2roffsu(p, su, SCALE_MAX)) {
356 		su->unit = SCALE_EM;
357 		su->scale = (int)strlen(p);
358 	}
359 }
360 
361 
362 static void
363 print_mdoc(MDOC_ARGS)
364 {
365 	struct tag	*t;
366 	struct htmlpair	 tag;
367 
368 	t = print_otag(h, TAG_HEAD, 0, NULL);
369 	print_mdoc_head(m, n, h);
370 	print_tagq(h, t);
371 
372 	t = print_otag(h, TAG_BODY, 0, NULL);
373 
374 	tag.key = ATTR_CLASS;
375 	tag.val = "body";
376 	print_otag(h, TAG_DIV, 1, &tag);
377 
378 	print_mdoc_nodelist(m, n, h);
379 	print_tagq(h, t);
380 }
381 
382 
383 /* ARGSUSED */
384 static void
385 print_mdoc_head(MDOC_ARGS)
386 {
387 
388 	print_gen_head(h);
389 	bufinit(h);
390 	buffmt(h, "%s(%d)", m->title, m->msec);
391 
392 	if (m->arch) {
393 		bufcat(h, " (");
394 		bufcat(h, m->arch);
395 		bufcat(h, ")");
396 	}
397 
398 	print_otag(h, TAG_TITLE, 0, NULL);
399 	print_text(h, h->buf);
400 }
401 
402 
403 static void
404 print_mdoc_nodelist(MDOC_ARGS)
405 {
406 
407 	print_mdoc_node(m, n, h);
408 	if (n->next)
409 		print_mdoc_nodelist(m, n->next, h);
410 }
411 
412 
413 static void
414 print_mdoc_node(MDOC_ARGS)
415 {
416 	int		 child;
417 	struct tag	*t;
418 
419 	child = 1;
420 	t = h->tags.head;
421 
422 	bufinit(h);
423 	switch (n->type) {
424 	case (MDOC_ROOT):
425 		child = mdoc_root_pre(m, n, h);
426 		break;
427 	case (MDOC_TEXT):
428 		print_text(h, n->string);
429 		return;
430 	default:
431 		if (mdocs[n->tok].pre)
432 			child = (*mdocs[n->tok].pre)(m, n, h);
433 		break;
434 	}
435 
436 	if (child && n->child)
437 		print_mdoc_nodelist(m, n->child, h);
438 
439 	print_stagq(h, t);
440 
441 	bufinit(h);
442 	switch (n->type) {
443 	case (MDOC_ROOT):
444 		mdoc_root_post(m, n, h);
445 		break;
446 	default:
447 		if (mdocs[n->tok].post)
448 			(*mdocs[n->tok].post)(m, n, h);
449 		break;
450 	}
451 }
452 
453 
454 /* ARGSUSED */
455 static void
456 mdoc_root_post(MDOC_ARGS)
457 {
458 	struct htmlpair	 tag[3];
459 	struct tag	*t, *tt;
460 	char		 b[DATESIZ];
461 
462 	time2a(m->date, b, DATESIZ);
463 
464 	/*
465 	 * XXX: this should use divs, but in Firefox, divs with nested
466 	 * divs for some reason puke when trying to put a border line
467 	 * below.  So I use tables, instead.
468 	 */
469 
470 	PAIR_CLASS_INIT(&tag[0], "footer");
471 	bufcat_style(h, "width", "100%");
472 	PAIR_STYLE_INIT(&tag[1], h);
473 	PAIR_SUMMARY_INIT(&tag[2], "footer");
474 
475 	t = print_otag(h, TAG_TABLE, 3, tag);
476 	tt = print_otag(h, TAG_TR, 0, NULL);
477 
478 	bufinit(h);
479 	bufcat_style(h, "width", "50%");
480 	PAIR_STYLE_INIT(&tag[0], h);
481 	print_otag(h, TAG_TD, 1, tag);
482 	print_text(h, b);
483 	print_stagq(h, tt);
484 
485 	bufinit(h);
486 	bufcat_style(h, "width", "50%");
487 	bufcat_style(h, "text-align", "right");
488 	PAIR_STYLE_INIT(&tag[0], h);
489 	print_otag(h, TAG_TD, 1, tag);
490 	print_text(h, m->os);
491 	print_tagq(h, t);
492 }
493 
494 
495 /* ARGSUSED */
496 static int
497 mdoc_root_pre(MDOC_ARGS)
498 {
499 	struct htmlpair	 tag[3];
500 	struct tag	*t, *tt;
501 	char		 b[BUFSIZ], title[BUFSIZ];
502 
503 	(void)strlcpy(b, m->vol, BUFSIZ);
504 
505 	if (m->arch) {
506 		(void)strlcat(b, " (", BUFSIZ);
507 		(void)strlcat(b, m->arch, BUFSIZ);
508 		(void)strlcat(b, ")", BUFSIZ);
509 	}
510 
511 	(void)snprintf(title, BUFSIZ - 1,
512 			"%s(%d)", m->title, m->msec);
513 
514 	/* XXX: see note in mdoc_root_post() about divs. */
515 
516 	PAIR_CLASS_INIT(&tag[0], "header");
517 	bufcat_style(h, "width", "100%");
518 	PAIR_STYLE_INIT(&tag[1], h);
519 	PAIR_SUMMARY_INIT(&tag[2], "header");
520 
521 	t = print_otag(h, TAG_TABLE, 3, tag);
522 
523 	tt = print_otag(h, TAG_TR, 0, NULL);
524 
525 	bufinit(h);
526 	bufcat_style(h, "width", "10%");
527 	PAIR_STYLE_INIT(&tag[0], h);
528 	print_otag(h, TAG_TD, 1, tag);
529 	print_text(h, title);
530 	print_stagq(h, tt);
531 
532 	bufinit(h);
533 	bufcat_style(h, "text-align", "center");
534 	bufcat_style(h, "white-space", "nowrap");
535 	bufcat_style(h, "width", "80%");
536 	PAIR_STYLE_INIT(&tag[0], h);
537 	print_otag(h, TAG_TD, 1, tag);
538 	print_text(h, b);
539 	print_stagq(h, tt);
540 
541 	bufinit(h);
542 	bufcat_style(h, "text-align", "right");
543 	bufcat_style(h, "width", "10%");
544 	PAIR_STYLE_INIT(&tag[0], h);
545 	print_otag(h, TAG_TD, 1, tag);
546 	print_text(h, title);
547 	print_tagq(h, t);
548 	return(1);
549 }
550 
551 
552 /* ARGSUSED */
553 static int
554 mdoc_sh_pre(MDOC_ARGS)
555 {
556 	struct htmlpair		 tag[2];
557 	const struct mdoc_node	*nn;
558 	char			 buf[BUFSIZ];
559 	struct roffsu		 su;
560 
561 	if (MDOC_BODY == n->type) {
562 		SCALE_HS_INIT(&su, INDENT);
563 		bufcat_su(h, "margin-left", &su);
564 		PAIR_CLASS_INIT(&tag[0], "sec-body");
565 		PAIR_STYLE_INIT(&tag[1], h);
566 		print_otag(h, TAG_DIV, 2, tag);
567 		return(1);
568 	} else if (MDOC_BLOCK == n->type) {
569 		PAIR_CLASS_INIT(&tag[0], "sec-block");
570 		if (n->prev && NULL == n->prev->body->child) {
571 			print_otag(h, TAG_DIV, 1, tag);
572 			return(1);
573 		}
574 
575 		SCALE_VS_INIT(&su, 1);
576 		bufcat_su(h, "margin-top", &su);
577 		if (NULL == n->next)
578 			bufcat_su(h, "margin-bottom", &su);
579 
580 		PAIR_STYLE_INIT(&tag[1], h);
581 		print_otag(h, TAG_DIV, 2, tag);
582 		return(1);
583 	}
584 
585 	buf[0] = '\0';
586 	for (nn = n->child; nn; nn = nn->next) {
587 		html_idcat(buf, nn->string, BUFSIZ);
588 		if (nn->next)
589 			html_idcat(buf, " ", BUFSIZ);
590 	}
591 
592 	PAIR_CLASS_INIT(&tag[0], "sec-head");
593 	PAIR_ID_INIT(&tag[1], buf);
594 
595 	print_otag(h, TAG_DIV, 2, tag);
596 	return(1);
597 }
598 
599 
600 /* ARGSUSED */
601 static int
602 mdoc_ss_pre(MDOC_ARGS)
603 {
604 	struct htmlpair	 	 tag[3];
605 	const struct mdoc_node	*nn;
606 	char			 buf[BUFSIZ];
607 	struct roffsu		 su;
608 
609 	SCALE_VS_INIT(&su, 1);
610 
611 	if (MDOC_BODY == n->type) {
612 		PAIR_CLASS_INIT(&tag[0], "ssec-body");
613 		if (n->parent->next && n->child) {
614 			bufcat_su(h, "margin-bottom", &su);
615 			PAIR_STYLE_INIT(&tag[1], h);
616 			print_otag(h, TAG_DIV, 2, tag);
617 		} else
618 			print_otag(h, TAG_DIV, 1, tag);
619 		return(1);
620 	} else if (MDOC_BLOCK == n->type) {
621 		PAIR_CLASS_INIT(&tag[0], "ssec-block");
622 		if (n->prev) {
623 			bufcat_su(h, "margin-top", &su);
624 			PAIR_STYLE_INIT(&tag[1], h);
625 			print_otag(h, TAG_DIV, 2, tag);
626 		} else
627 			print_otag(h, TAG_DIV, 1, tag);
628 		return(1);
629 	}
630 
631 	/* TODO: see note in mdoc_sh_pre() about duplicates. */
632 
633 	buf[0] = '\0';
634 	for (nn = n->child; nn; nn = nn->next) {
635 		html_idcat(buf, nn->string, BUFSIZ);
636 		if (nn->next)
637 			html_idcat(buf, " ", BUFSIZ);
638 	}
639 
640 	SCALE_HS_INIT(&su, INDENT - HALFINDENT);
641 	su.scale = -su.scale;
642 	bufcat_su(h, "margin-left", &su);
643 
644 	PAIR_CLASS_INIT(&tag[0], "ssec-head");
645 	PAIR_STYLE_INIT(&tag[1], h);
646 	PAIR_ID_INIT(&tag[2], buf);
647 
648 	print_otag(h, TAG_DIV, 3, tag);
649 	return(1);
650 }
651 
652 
653 /* ARGSUSED */
654 static int
655 mdoc_fl_pre(MDOC_ARGS)
656 {
657 	struct htmlpair	 tag;
658 
659 	PAIR_CLASS_INIT(&tag, "flag");
660 	print_otag(h, TAG_SPAN, 1, &tag);
661 
662 	/* `Cm' has no leading hyphen. */
663 
664 	if (MDOC_Cm == n->tok)
665 		return(1);
666 
667 	print_text(h, "\\-");
668 
669 	if (n->child)
670 		h->flags |= HTML_NOSPACE;
671 	else if (n->next && n->next->line == n->line)
672 		h->flags |= HTML_NOSPACE;
673 
674 	return(1);
675 }
676 
677 
678 /* ARGSUSED */
679 static int
680 mdoc_nd_pre(MDOC_ARGS)
681 {
682 	struct htmlpair	 tag;
683 
684 	if (MDOC_BODY != n->type)
685 		return(1);
686 
687 	/* XXX: this tag in theory can contain block elements. */
688 
689 	print_text(h, "\\(em");
690 	PAIR_CLASS_INIT(&tag, "desc-body");
691 	print_otag(h, TAG_SPAN, 1, &tag);
692 	return(1);
693 }
694 
695 
696 /* ARGSUSED */
697 static int
698 mdoc_op_pre(MDOC_ARGS)
699 {
700 	struct htmlpair	 tag;
701 
702 	if (MDOC_BODY != n->type)
703 		return(1);
704 
705 	/* XXX: this tag in theory can contain block elements. */
706 
707 	print_text(h, "\\(lB");
708 	h->flags |= HTML_NOSPACE;
709 	PAIR_CLASS_INIT(&tag, "opt");
710 	print_otag(h, TAG_SPAN, 1, &tag);
711 	return(1);
712 }
713 
714 
715 /* ARGSUSED */
716 static void
717 mdoc_op_post(MDOC_ARGS)
718 {
719 
720 	if (MDOC_BODY != n->type)
721 		return;
722 	h->flags |= HTML_NOSPACE;
723 	print_text(h, "\\(rB");
724 }
725 
726 
727 static int
728 mdoc_nm_pre(MDOC_ARGS)
729 {
730 	struct htmlpair	tag;
731 
732 	if (SEC_SYNOPSIS == n->sec && n->prev) {
733 		bufcat_style(h, "clear", "both");
734 		PAIR_STYLE_INIT(&tag, h);
735 		print_otag(h, TAG_BR, 1, &tag);
736 	}
737 
738 	PAIR_CLASS_INIT(&tag, "name");
739 	print_otag(h, TAG_SPAN, 1, &tag);
740 	if (NULL == n->child)
741 		print_text(h, m->name);
742 
743 	return(1);
744 }
745 
746 
747 /* ARGSUSED */
748 static int
749 mdoc_xr_pre(MDOC_ARGS)
750 {
751 	struct htmlpair	 	 tag[2];
752 	const struct mdoc_node	*nn;
753 
754 	if (NULL == n->child)
755 		return(0);
756 
757 	PAIR_CLASS_INIT(&tag[0], "link-man");
758 
759 	if (h->base_man) {
760 		buffmt_man(h, n->child->string,
761 				n->child->next ?
762 				n->child->next->string : NULL);
763 		PAIR_HREF_INIT(&tag[1], h->buf);
764 		print_otag(h, TAG_A, 2, tag);
765 	} else
766 		print_otag(h, TAG_A, 1, tag);
767 
768 	nn = n->child;
769 	print_text(h, nn->string);
770 
771 	if (NULL == (nn = nn->next))
772 		return(0);
773 
774 	h->flags |= HTML_NOSPACE;
775 	print_text(h, "(");
776 	h->flags |= HTML_NOSPACE;
777 	print_text(h, nn->string);
778 	h->flags |= HTML_NOSPACE;
779 	print_text(h, ")");
780 	return(0);
781 }
782 
783 
784 /* ARGSUSED */
785 static int
786 mdoc_ns_pre(MDOC_ARGS)
787 {
788 
789 	h->flags |= HTML_NOSPACE;
790 	return(1);
791 }
792 
793 
794 /* ARGSUSED */
795 static int
796 mdoc_ar_pre(MDOC_ARGS)
797 {
798 	struct htmlpair tag;
799 
800 	PAIR_CLASS_INIT(&tag, "arg");
801 	print_otag(h, TAG_SPAN, 1, &tag);
802 	return(1);
803 }
804 
805 
806 /* ARGSUSED */
807 static int
808 mdoc_xx_pre(MDOC_ARGS)
809 {
810 	const char	*pp;
811 	struct htmlpair	 tag;
812 
813 	switch (n->tok) {
814 	case (MDOC_Bsx):
815 		pp = "BSDI BSD/OS";
816 		break;
817 	case (MDOC_Dx):
818 		pp = "DragonFly";
819 		break;
820 	case (MDOC_Fx):
821 		pp = "FreeBSD";
822 		break;
823 	case (MDOC_Nx):
824 		pp = "NetBSD";
825 		break;
826 	case (MDOC_Ox):
827 		pp = "OpenBSD";
828 		break;
829 	case (MDOC_Ux):
830 		pp = "UNIX";
831 		break;
832 	default:
833 		return(1);
834 	}
835 
836 	PAIR_CLASS_INIT(&tag, "unix");
837 	print_otag(h, TAG_SPAN, 1, &tag);
838 	print_text(h, pp);
839 	return(1);
840 }
841 
842 
843 /* ARGSUSED */
844 static int
845 mdoc_bx_pre(MDOC_ARGS)
846 {
847 	const struct mdoc_node	*nn;
848 	struct htmlpair		 tag;
849 
850 	PAIR_CLASS_INIT(&tag, "unix");
851 	print_otag(h, TAG_SPAN, 1, &tag);
852 
853 	for (nn = n->child; nn; nn = nn->next)
854 		print_mdoc_node(m, nn, h);
855 
856 	if (n->child)
857 		h->flags |= HTML_NOSPACE;
858 
859 	print_text(h, "BSD");
860 	return(0);
861 }
862 
863 
864 /* ARGSUSED */
865 static int
866 mdoc_it_block_pre(MDOC_ARGS, int type, int comp,
867 		struct roffsu *offs, struct roffsu *width)
868 {
869 	struct htmlpair	 	 tag;
870 	const struct mdoc_node	*nn;
871 	struct roffsu		 su;
872 
873 	nn = n->parent->parent;
874 	assert(nn->args);
875 
876 	/* XXX: see notes in mdoc_it_pre(). */
877 
878 	if (MDOC_Column == type) {
879 		/* Don't width-pad on the left. */
880 		SCALE_HS_INIT(width, 0);
881 		/* Also disallow non-compact. */
882 		comp = 1;
883 	}
884 	if (MDOC_Diag == type)
885 		/* Mandate non-compact with empty prior. */
886 		if (n->prev && NULL == n->prev->body->child)
887 			comp = 1;
888 
889 	bufcat_style(h, "clear", "both");
890 	if (offs->scale > 0)
891 		bufcat_su(h, "margin-left", offs);
892 	if (width->scale > 0)
893 		bufcat_su(h, "padding-left", width);
894 
895 	PAIR_STYLE_INIT(&tag, h);
896 
897 	/* Mandate compact following `Ss' and `Sh' starts. */
898 
899 	for (nn = n; nn && ! comp; nn = nn->parent) {
900 		if (MDOC_BLOCK != nn->type)
901 			continue;
902 		if (MDOC_Ss == nn->tok || MDOC_Sh == nn->tok)
903 			comp = 1;
904 		if (nn->prev)
905 			break;
906 	}
907 
908 	if ( ! comp) {
909 		SCALE_VS_INIT(&su, 1);
910 		bufcat_su(h, "padding-top", &su);
911 	}
912 
913 	PAIR_STYLE_INIT(&tag, h);
914 	print_otag(h, TAG_DIV, 1, &tag);
915 	return(1);
916 }
917 
918 
919 /* ARGSUSED */
920 static int
921 mdoc_it_body_pre(MDOC_ARGS, int type)
922 {
923 	struct htmlpair	 tag;
924 	struct roffsu	 su;
925 
926 	switch (type) {
927 	case (MDOC_Item):
928 		/* FALLTHROUGH */
929 	case (MDOC_Ohang):
930 		/* FALLTHROUGH */
931 	case (MDOC_Column):
932 		break;
933 	default:
934 		/*
935 		 * XXX: this tricks CSS into aligning the bodies with
936 		 * the right-padding in the head.
937 		 */
938 		SCALE_HS_INIT(&su, 2);
939 		bufcat_su(h, "margin-left", &su);
940 		PAIR_STYLE_INIT(&tag, h);
941 		print_otag(h, TAG_DIV, 1, &tag);
942 		break;
943 	}
944 
945 	return(1);
946 }
947 
948 
949 /* ARGSUSED */
950 static int
951 mdoc_it_head_pre(MDOC_ARGS, int type, struct roffsu *width)
952 {
953 	struct htmlpair	 tag;
954 	struct ord	*ord;
955 	char		 nbuf[BUFSIZ];
956 
957 	switch (type) {
958 	case (MDOC_Item):
959 		return(0);
960 	case (MDOC_Ohang):
961 		print_otag(h, TAG_DIV, 0, &tag);
962 		return(1);
963 	case (MDOC_Column):
964 		bufcat_su(h, "min-width", width);
965 		bufcat_style(h, "clear", "none");
966 		if (n->next && MDOC_HEAD == n->next->type)
967 			bufcat_style(h, "float", "left");
968 		PAIR_STYLE_INIT(&tag, h);
969 		print_otag(h, TAG_DIV, 1, &tag);
970 		break;
971 	default:
972 		bufcat_su(h, "min-width", width);
973 		SCALE_INVERT(width);
974 		bufcat_su(h, "margin-left", width);
975 		if (n->next && n->next->child)
976 			bufcat_style(h, "float", "left");
977 
978 		/* XXX: buffer if we run into body. */
979 		SCALE_HS_INIT(width, 1);
980 		bufcat_su(h, "margin-right", width);
981 		PAIR_STYLE_INIT(&tag, h);
982 		print_otag(h, TAG_DIV, 1, &tag);
983 		break;
984 	}
985 
986 	switch (type) {
987 	case (MDOC_Diag):
988 		PAIR_CLASS_INIT(&tag, "diag");
989 		print_otag(h, TAG_SPAN, 1, &tag);
990 		break;
991 	case (MDOC_Enum):
992 		ord = h->ords.head;
993 		assert(ord);
994 		nbuf[BUFSIZ - 1] = 0;
995 		(void)snprintf(nbuf, BUFSIZ - 1, "%d.", ord->pos++);
996 		print_text(h, nbuf);
997 		return(0);
998 	case (MDOC_Dash):
999 		print_text(h, "\\(en");
1000 		return(0);
1001 	case (MDOC_Hyphen):
1002 		print_text(h, "\\(hy");
1003 		return(0);
1004 	case (MDOC_Bullet):
1005 		print_text(h, "\\(bu");
1006 		return(0);
1007 	default:
1008 		break;
1009 	}
1010 
1011 	return(1);
1012 }
1013 
1014 
1015 static int
1016 mdoc_it_pre(MDOC_ARGS)
1017 {
1018 	int			 i, type, wp, comp;
1019 	const struct mdoc_node	*bl, *nn;
1020 	struct roffsu		 width, offs;
1021 
1022 	/*
1023 	 * XXX: be very careful in changing anything, here.  Lists in
1024 	 * mandoc have many peculiarities; furthermore, they don't
1025 	 * translate well into HTML and require a bit of mangling.
1026 	 */
1027 
1028 	bl = n->parent->parent;
1029 	if (MDOC_BLOCK != n->type)
1030 		bl = bl->parent;
1031 
1032 	type = a2list(bl);
1033 
1034 	/* Set default width and offset. */
1035 
1036 	SCALE_HS_INIT(&offs, 0);
1037 
1038 	switch (type) {
1039 	case (MDOC_Enum):
1040 		/* FALLTHROUGH */
1041 	case (MDOC_Dash):
1042 		/* FALLTHROUGH */
1043 	case (MDOC_Hyphen):
1044 		/* FALLTHROUGH */
1045 	case (MDOC_Bullet):
1046 		SCALE_HS_INIT(&width, 2);
1047 		break;
1048 	default:
1049 		SCALE_HS_INIT(&width, INDENT);
1050 		break;
1051 	}
1052 
1053 	/* Get width, offset, and compact arguments. */
1054 
1055 	for (wp = -1, comp = i = 0; i < (int)bl->args->argc; i++)
1056 		switch (bl->args->argv[i].arg) {
1057 		case (MDOC_Column):
1058 			wp = i; /* Save for later. */
1059 			break;
1060 		case (MDOC_Width):
1061 			a2width(bl->args->argv[i].value[0], &width);
1062 			break;
1063 		case (MDOC_Offset):
1064 			a2offs(bl->args->argv[i].value[0], &offs);
1065 			break;
1066 		case (MDOC_Compact):
1067 			comp = 1;
1068 			break;
1069 		default:
1070 			break;
1071 		}
1072 
1073 	/* Override width in some cases. */
1074 
1075 	switch (type) {
1076 	case (MDOC_Ohang):
1077 		/* FALLTHROUGH */
1078 	case (MDOC_Item):
1079 		/* FALLTHROUGH */
1080 	case (MDOC_Inset):
1081 		/* FALLTHROUGH */
1082 	case (MDOC_Diag):
1083 		SCALE_HS_INIT(&width, 0);
1084 		break;
1085 	default:
1086 		if (0 == width.scale)
1087 			SCALE_HS_INIT(&width, INDENT);
1088 		break;
1089 	}
1090 
1091 	/* Flip to body/block processing. */
1092 
1093 	if (MDOC_BODY == n->type)
1094 		return(mdoc_it_body_pre(m, n, h, type));
1095 	if (MDOC_BLOCK == n->type)
1096 		return(mdoc_it_block_pre(m, n, h, type, comp,
1097 					&offs, &width));
1098 
1099 	/* Override column widths. */
1100 
1101 	if (MDOC_Column == type) {
1102 		nn = n->parent->child;
1103 		for (i = 0; nn && nn != n; nn = nn->next, i++)
1104 			/* Counter... */ ;
1105 		if (i < (int)bl->args->argv[wp].sz)
1106 			a2width(bl->args->argv[wp].value[i], &width);
1107 	}
1108 
1109 	return(mdoc_it_head_pre(m, n, h, type, &width));
1110 }
1111 
1112 
1113 /* ARGSUSED */
1114 static int
1115 mdoc_bl_pre(MDOC_ARGS)
1116 {
1117 	struct ord	*ord;
1118 
1119 	if (MDOC_HEAD == n->type)
1120 		return(0);
1121 	if (MDOC_BLOCK != n->type)
1122 		return(1);
1123 	if (MDOC_Enum != a2list(n))
1124 		return(1);
1125 
1126 	ord = malloc(sizeof(struct ord));
1127 	if (NULL == ord) {
1128 		perror(NULL);
1129 		exit(EXIT_FAILURE);
1130 	}
1131 	ord->cookie = n;
1132 	ord->pos = 1;
1133 	ord->next = h->ords.head;
1134 	h->ords.head = ord;
1135 	return(1);
1136 }
1137 
1138 
1139 /* ARGSUSED */
1140 static void
1141 mdoc_bl_post(MDOC_ARGS)
1142 {
1143 	struct ord	*ord;
1144 
1145 	if (MDOC_BLOCK != n->type)
1146 		return;
1147 	if (MDOC_Enum != a2list(n))
1148 		return;
1149 
1150 	ord = h->ords.head;
1151 	assert(ord);
1152 	h->ords.head = ord->next;
1153 	free(ord);
1154 }
1155 
1156 
1157 /* ARGSUSED */
1158 static int
1159 mdoc_ex_pre(MDOC_ARGS)
1160 {
1161 	const struct mdoc_node	*nn;
1162 	struct tag		*t;
1163 	struct htmlpair		 tag;
1164 
1165 	PAIR_CLASS_INIT(&tag, "utility");
1166 
1167 	print_text(h, "The");
1168 	for (nn = n->child; nn; nn = nn->next) {
1169 		t = print_otag(h, TAG_SPAN, 1, &tag);
1170 		print_text(h, nn->string);
1171 		print_tagq(h, t);
1172 
1173 		h->flags |= HTML_NOSPACE;
1174 
1175 		if (nn->next && NULL == nn->next->next)
1176 			print_text(h, ", and");
1177 		else if (nn->next)
1178 			print_text(h, ",");
1179 		else
1180 			h->flags &= ~HTML_NOSPACE;
1181 	}
1182 
1183 	if (n->child->next)
1184 		print_text(h, "utilities exit");
1185 	else
1186 		print_text(h, "utility exits");
1187 
1188        	print_text(h, "0 on success, and >0 if an error occurs.");
1189 	return(0);
1190 }
1191 
1192 
1193 /* ARGSUSED */
1194 static int
1195 mdoc_dq_pre(MDOC_ARGS)
1196 {
1197 
1198 	if (MDOC_BODY != n->type)
1199 		return(1);
1200 	print_text(h, "\\(lq");
1201 	h->flags |= HTML_NOSPACE;
1202 	return(1);
1203 }
1204 
1205 
1206 /* ARGSUSED */
1207 static void
1208 mdoc_dq_post(MDOC_ARGS)
1209 {
1210 
1211 	if (MDOC_BODY != n->type)
1212 		return;
1213 	h->flags |= HTML_NOSPACE;
1214 	print_text(h, "\\(rq");
1215 }
1216 
1217 
1218 /* ARGSUSED */
1219 static int
1220 mdoc_pq_pre(MDOC_ARGS)
1221 {
1222 
1223 	if (MDOC_BODY != n->type)
1224 		return(1);
1225 	print_text(h, "\\&(");
1226 	h->flags |= HTML_NOSPACE;
1227 	return(1);
1228 }
1229 
1230 
1231 /* ARGSUSED */
1232 static void
1233 mdoc_pq_post(MDOC_ARGS)
1234 {
1235 
1236 	if (MDOC_BODY != n->type)
1237 		return;
1238 	print_text(h, ")");
1239 }
1240 
1241 
1242 /* ARGSUSED */
1243 static int
1244 mdoc_sq_pre(MDOC_ARGS)
1245 {
1246 
1247 	if (MDOC_BODY != n->type)
1248 		return(1);
1249 	print_text(h, "\\(oq");
1250 	h->flags |= HTML_NOSPACE;
1251 	return(1);
1252 }
1253 
1254 
1255 /* ARGSUSED */
1256 static void
1257 mdoc_sq_post(MDOC_ARGS)
1258 {
1259 
1260 	if (MDOC_BODY != n->type)
1261 		return;
1262 	h->flags |= HTML_NOSPACE;
1263 	print_text(h, "\\(aq");
1264 }
1265 
1266 
1267 /* ARGSUSED */
1268 static int
1269 mdoc_em_pre(MDOC_ARGS)
1270 {
1271 	struct htmlpair	tag;
1272 
1273 	PAIR_CLASS_INIT(&tag, "emph");
1274 	print_otag(h, TAG_SPAN, 1, &tag);
1275 	return(1);
1276 }
1277 
1278 
1279 /* ARGSUSED */
1280 static int
1281 mdoc_d1_pre(MDOC_ARGS)
1282 {
1283 	struct htmlpair	 tag[2];
1284 	struct roffsu	 su;
1285 
1286 	if (MDOC_BLOCK != n->type)
1287 		return(1);
1288 
1289 	/* FIXME: D1 shouldn't be literal. */
1290 
1291 	SCALE_VS_INIT(&su, INDENT - 2);
1292 	bufcat_su(h, "margin-left", &su);
1293 	PAIR_CLASS_INIT(&tag[0], "lit");
1294 	PAIR_STYLE_INIT(&tag[1], h);
1295 	print_otag(h, TAG_DIV, 2, tag);
1296 	return(1);
1297 }
1298 
1299 
1300 /* ARGSUSED */
1301 static int
1302 mdoc_sx_pre(MDOC_ARGS)
1303 {
1304 	struct htmlpair		 tag[2];
1305 	const struct mdoc_node	*nn;
1306 	char			 buf[BUFSIZ];
1307 
1308 	strlcpy(buf, "#", BUFSIZ);
1309 	for (nn = n->child; nn; nn = nn->next) {
1310 		html_idcat(buf, nn->string, BUFSIZ);
1311 		if (nn->next)
1312 			html_idcat(buf, " ", BUFSIZ);
1313 	}
1314 
1315 	PAIR_CLASS_INIT(&tag[0], "link-sec");
1316 	PAIR_HREF_INIT(&tag[1], buf);
1317 
1318 	print_otag(h, TAG_A, 2, tag);
1319 	return(1);
1320 }
1321 
1322 
1323 /* ARGSUSED */
1324 static int
1325 mdoc_aq_pre(MDOC_ARGS)
1326 {
1327 
1328 	if (MDOC_BODY != n->type)
1329 		return(1);
1330 	print_text(h, "\\(la");
1331 	h->flags |= HTML_NOSPACE;
1332 	return(1);
1333 }
1334 
1335 
1336 /* ARGSUSED */
1337 static void
1338 mdoc_aq_post(MDOC_ARGS)
1339 {
1340 
1341 	if (MDOC_BODY != n->type)
1342 		return;
1343 	h->flags |= HTML_NOSPACE;
1344 	print_text(h, "\\(ra");
1345 }
1346 
1347 
1348 /* ARGSUSED */
1349 static int
1350 mdoc_bd_pre(MDOC_ARGS)
1351 {
1352 	struct htmlpair	 	 tag[2];
1353 	int		 	 type, comp, i;
1354 	const struct mdoc_node	*bl, *nn;
1355 	struct roffsu		 su;
1356 
1357 	if (MDOC_BLOCK == n->type)
1358 		bl = n;
1359 	else if (MDOC_HEAD == n->type)
1360 		return(0);
1361 	else
1362 		bl = n->parent;
1363 
1364 	SCALE_VS_INIT(&su, 0);
1365 
1366 	type = comp = 0;
1367 	for (i = 0; i < (int)bl->args->argc; i++)
1368 		switch (bl->args->argv[i].arg) {
1369 		case (MDOC_Offset):
1370 			a2offs(bl->args->argv[i].value[0], &su);
1371 			break;
1372 		case (MDOC_Compact):
1373 			comp = 1;
1374 			break;
1375 		case (MDOC_Centred):
1376 			/* FALLTHROUGH */
1377 		case (MDOC_Ragged):
1378 			/* FALLTHROUGH */
1379 		case (MDOC_Filled):
1380 			/* FALLTHROUGH */
1381 		case (MDOC_Unfilled):
1382 			/* FALLTHROUGH */
1383 		case (MDOC_Literal):
1384 			type = bl->args->argv[i].arg;
1385 			break;
1386 		default:
1387 			break;
1388 		}
1389 
1390 	/* FIXME: -centered, etc. formatting. */
1391 	/* FIXME: does not respect -offset ??? */
1392 
1393 	if (MDOC_BLOCK == n->type) {
1394 		bufcat_su(h, "margin-left", &su);
1395 		for (nn = n; nn && ! comp; nn = nn->parent) {
1396 			if (MDOC_BLOCK != nn->type)
1397 				continue;
1398 			if (MDOC_Ss == nn->tok || MDOC_Sh == nn->tok)
1399 				comp = 1;
1400 			if (nn->prev)
1401 				break;
1402 		}
1403 		if (comp) {
1404 			print_otag(h, TAG_DIV, 0, tag);
1405 			return(1);
1406 		}
1407 		SCALE_VS_INIT(&su, 1);
1408 		bufcat_su(h, "margin-top", &su);
1409 		PAIR_STYLE_INIT(&tag[0], h);
1410 		print_otag(h, TAG_DIV, 1, tag);
1411 		return(1);
1412 	}
1413 
1414 	if (MDOC_Unfilled != type && MDOC_Literal != type)
1415 		return(1);
1416 
1417 	PAIR_CLASS_INIT(&tag[0], "lit");
1418 	bufcat_style(h, "white-space", "pre");
1419 	PAIR_STYLE_INIT(&tag[1], h);
1420 	print_otag(h, TAG_DIV, 2, tag);
1421 
1422 	for (nn = n->child; nn; nn = nn->next) {
1423 		h->flags |= HTML_NOSPACE;
1424 		print_mdoc_node(m, nn, h);
1425 		if (NULL == nn->next)
1426 			continue;
1427 		if (nn->prev && nn->prev->line < nn->line)
1428 			print_text(h, "\n");
1429 		else if (NULL == nn->prev)
1430 			print_text(h, "\n");
1431 	}
1432 
1433 	return(0);
1434 }
1435 
1436 
1437 /* ARGSUSED */
1438 static int
1439 mdoc_pa_pre(MDOC_ARGS)
1440 {
1441 	struct htmlpair	tag;
1442 
1443 	PAIR_CLASS_INIT(&tag, "file");
1444 	print_otag(h, TAG_SPAN, 1, &tag);
1445 	return(1);
1446 }
1447 
1448 
1449 /* ARGSUSED */
1450 static int
1451 mdoc_ad_pre(MDOC_ARGS)
1452 {
1453 	struct htmlpair	tag;
1454 
1455 	PAIR_CLASS_INIT(&tag, "addr");
1456 	print_otag(h, TAG_SPAN, 1, &tag);
1457 	return(1);
1458 }
1459 
1460 
1461 /* ARGSUSED */
1462 static int
1463 mdoc_an_pre(MDOC_ARGS)
1464 {
1465 	struct htmlpair	tag;
1466 
1467 	/* TODO: -split and -nosplit (see termp_an_pre()). */
1468 
1469 	PAIR_CLASS_INIT(&tag, "author");
1470 	print_otag(h, TAG_SPAN, 1, &tag);
1471 	return(1);
1472 }
1473 
1474 
1475 /* ARGSUSED */
1476 static int
1477 mdoc_cd_pre(MDOC_ARGS)
1478 {
1479 	struct htmlpair	tag;
1480 
1481 	print_otag(h, TAG_DIV, 0, NULL);
1482 	PAIR_CLASS_INIT(&tag, "config");
1483 	print_otag(h, TAG_SPAN, 1, &tag);
1484 	return(1);
1485 }
1486 
1487 
1488 /* ARGSUSED */
1489 static int
1490 mdoc_dv_pre(MDOC_ARGS)
1491 {
1492 	struct htmlpair	tag;
1493 
1494 	PAIR_CLASS_INIT(&tag, "define");
1495 	print_otag(h, TAG_SPAN, 1, &tag);
1496 	return(1);
1497 }
1498 
1499 
1500 /* ARGSUSED */
1501 static int
1502 mdoc_ev_pre(MDOC_ARGS)
1503 {
1504 	struct htmlpair	tag;
1505 
1506 	PAIR_CLASS_INIT(&tag, "env");
1507 	print_otag(h, TAG_SPAN, 1, &tag);
1508 	return(1);
1509 }
1510 
1511 
1512 /* ARGSUSED */
1513 static int
1514 mdoc_er_pre(MDOC_ARGS)
1515 {
1516 	struct htmlpair	tag;
1517 
1518 	PAIR_CLASS_INIT(&tag, "errno");
1519 	print_otag(h, TAG_SPAN, 1, &tag);
1520 	return(1);
1521 }
1522 
1523 
1524 /* ARGSUSED */
1525 static int
1526 mdoc_fa_pre(MDOC_ARGS)
1527 {
1528 	const struct mdoc_node	*nn;
1529 	struct htmlpair		 tag;
1530 	struct tag		*t;
1531 
1532 	PAIR_CLASS_INIT(&tag, "farg");
1533 	if (n->parent->tok != MDOC_Fo) {
1534 		print_otag(h, TAG_SPAN, 1, &tag);
1535 		return(1);
1536 	}
1537 
1538 	for (nn = n->child; nn; nn = nn->next) {
1539 		t = print_otag(h, TAG_SPAN, 1, &tag);
1540 		print_text(h, nn->string);
1541 		print_tagq(h, t);
1542 		if (nn->next)
1543 			print_text(h, ",");
1544 	}
1545 
1546 	if (n->child && n->next && n->next->tok == MDOC_Fa)
1547 		print_text(h, ",");
1548 
1549 	return(0);
1550 }
1551 
1552 
1553 /* ARGSUSED */
1554 static int
1555 mdoc_fd_pre(MDOC_ARGS)
1556 {
1557 	struct htmlpair	 tag;
1558 	struct roffsu	 su;
1559 
1560 	if (SEC_SYNOPSIS == n->sec) {
1561 		if (n->next && MDOC_Fd != n->next->tok) {
1562 			SCALE_VS_INIT(&su, 1);
1563 			bufcat_su(h, "margin-bottom", &su);
1564 			PAIR_STYLE_INIT(&tag, h);
1565 			print_otag(h, TAG_DIV, 1, &tag);
1566 		} else
1567 			print_otag(h, TAG_DIV, 0, NULL);
1568 	}
1569 
1570 	PAIR_CLASS_INIT(&tag, "macro");
1571 	print_otag(h, TAG_SPAN, 1, &tag);
1572 	return(1);
1573 }
1574 
1575 
1576 /* ARGSUSED */
1577 static int
1578 mdoc_vt_pre(MDOC_ARGS)
1579 {
1580 	struct htmlpair	 tag;
1581 	struct roffsu	 su;
1582 
1583 	if (SEC_SYNOPSIS == n->sec && MDOC_BLOCK == n->type) {
1584 		if (n->next && MDOC_Vt != n->next->tok) {
1585 			SCALE_VS_INIT(&su, 1);
1586 			bufcat_su(h, "margin-bottom", &su);
1587 			PAIR_STYLE_INIT(&tag, h);
1588 			print_otag(h, TAG_DIV, 1, &tag);
1589 		} else
1590 			print_otag(h, TAG_DIV, 0, NULL);
1591 
1592 		return(1);
1593 	} else if (MDOC_HEAD == n->type)
1594 		return(0);
1595 
1596 	PAIR_CLASS_INIT(&tag, "type");
1597 	print_otag(h, TAG_SPAN, 1, &tag);
1598 	return(1);
1599 }
1600 
1601 
1602 /* ARGSUSED */
1603 static int
1604 mdoc_ft_pre(MDOC_ARGS)
1605 {
1606 	struct htmlpair	 tag;
1607 
1608 	if (SEC_SYNOPSIS == n->sec)
1609 		print_otag(h, TAG_DIV, 0, NULL);
1610 
1611 	PAIR_CLASS_INIT(&tag, "ftype");
1612 	print_otag(h, TAG_SPAN, 1, &tag);
1613 	return(1);
1614 }
1615 
1616 
1617 /* ARGSUSED */
1618 static int
1619 mdoc_fn_pre(MDOC_ARGS)
1620 {
1621 	struct tag		*t;
1622 	struct htmlpair	 	 tag[2];
1623 	const struct mdoc_node	*nn;
1624 	char			 nbuf[BUFSIZ];
1625 	const char		*sp, *ep;
1626 	int			 sz, i;
1627 	struct roffsu		 su;
1628 
1629 	if (SEC_SYNOPSIS == n->sec) {
1630 		SCALE_HS_INIT(&su, INDENT);
1631 		bufcat_su(h, "margin-left", &su);
1632 		su.scale = -su.scale;
1633 		bufcat_su(h, "text-indent", &su);
1634 		if (n->next) {
1635 			SCALE_VS_INIT(&su, 1);
1636 			bufcat_su(h, "margin-bottom", &su);
1637 		}
1638 		PAIR_STYLE_INIT(&tag[0], h);
1639 		print_otag(h, TAG_DIV, 1, tag);
1640 	}
1641 
1642 	/* Split apart into type and name. */
1643 	assert(n->child->string);
1644 	sp = n->child->string;
1645 
1646 	ep = strchr(sp, ' ');
1647 	if (NULL != ep) {
1648 		PAIR_CLASS_INIT(&tag[0], "ftype");
1649 		t = print_otag(h, TAG_SPAN, 1, tag);
1650 
1651 		while (ep) {
1652 			sz = MIN((int)(ep - sp), BUFSIZ - 1);
1653 			(void)memcpy(nbuf, sp, (size_t)sz);
1654 			nbuf[sz] = '\0';
1655 			print_text(h, nbuf);
1656 			sp = ++ep;
1657 			ep = strchr(sp, ' ');
1658 		}
1659 		print_tagq(h, t);
1660 	}
1661 
1662 	PAIR_CLASS_INIT(&tag[0], "fname");
1663 
1664 	/*
1665 	 * FIXME: only refer to IDs that we know exist.
1666 	 */
1667 
1668 #if 0
1669 	if (SEC_SYNOPSIS == n->sec) {
1670 		nbuf[0] = '\0';
1671 		html_idcat(nbuf, sp, BUFSIZ);
1672 		PAIR_ID_INIT(&tag[1], nbuf);
1673 	} else {
1674 		strlcpy(nbuf, "#", BUFSIZ);
1675 		html_idcat(nbuf, sp, BUFSIZ);
1676 		PAIR_HREF_INIT(&tag[1], nbuf);
1677 	}
1678 #endif
1679 
1680 	t = print_otag(h, TAG_SPAN, 1, tag);
1681 
1682 	if (sp) {
1683 		strlcpy(nbuf, sp, BUFSIZ);
1684 		print_text(h, nbuf);
1685 	}
1686 
1687 	print_tagq(h, t);
1688 
1689 	h->flags |= HTML_NOSPACE;
1690 	print_text(h, "(");
1691 
1692 	bufinit(h);
1693 	PAIR_CLASS_INIT(&tag[0], "farg");
1694 	bufcat_style(h, "white-space", "nowrap");
1695 	PAIR_STYLE_INIT(&tag[1], h);
1696 
1697 	for (nn = n->child->next; nn; nn = nn->next) {
1698 		i = 1;
1699 		if (SEC_SYNOPSIS == n->sec)
1700 			i = 2;
1701 		t = print_otag(h, TAG_SPAN, i, tag);
1702 		print_text(h, nn->string);
1703 		print_tagq(h, t);
1704 		if (nn->next)
1705 			print_text(h, ",");
1706 	}
1707 
1708 	print_text(h, ")");
1709 	if (SEC_SYNOPSIS == n->sec)
1710 		print_text(h, ";");
1711 
1712 	return(0);
1713 }
1714 
1715 
1716 /* ARGSUSED */
1717 static int
1718 mdoc_sp_pre(MDOC_ARGS)
1719 {
1720 	int		 len;
1721 	struct htmlpair	 tag;
1722 	struct roffsu	 su;
1723 
1724 	switch (n->tok) {
1725 	case (MDOC_sp):
1726 		/* FIXME: can this have a scaling indicator? */
1727 		len = n->child ? atoi(n->child->string) : 1;
1728 		break;
1729 	case (MDOC_br):
1730 		len = 0;
1731 		break;
1732 	default:
1733 		len = 1;
1734 		break;
1735 	}
1736 
1737 	SCALE_VS_INIT(&su, len);
1738 	bufcat_su(h, "height", &su);
1739 	PAIR_STYLE_INIT(&tag, h);
1740 	print_otag(h, TAG_DIV, 1, &tag);
1741 	/* So the div isn't empty: */
1742 	print_text(h, "\\~");
1743 
1744 	return(0);
1745 
1746 }
1747 
1748 
1749 /* ARGSUSED */
1750 static int
1751 mdoc_brq_pre(MDOC_ARGS)
1752 {
1753 
1754 	if (MDOC_BODY != n->type)
1755 		return(1);
1756 	print_text(h, "\\(lC");
1757 	h->flags |= HTML_NOSPACE;
1758 	return(1);
1759 }
1760 
1761 
1762 /* ARGSUSED */
1763 static void
1764 mdoc_brq_post(MDOC_ARGS)
1765 {
1766 
1767 	if (MDOC_BODY != n->type)
1768 		return;
1769 	h->flags |= HTML_NOSPACE;
1770 	print_text(h, "\\(rC");
1771 }
1772 
1773 
1774 /* ARGSUSED */
1775 static int
1776 mdoc_lk_pre(MDOC_ARGS)
1777 {
1778 	const struct mdoc_node	*nn;
1779 	struct htmlpair		 tag[2];
1780 
1781 	nn = n->child;
1782 
1783 	PAIR_CLASS_INIT(&tag[0], "link-ext");
1784 	PAIR_HREF_INIT(&tag[1], nn->string);
1785 	print_otag(h, TAG_A, 2, tag);
1786 
1787 	if (NULL == nn->next)
1788 		return(1);
1789 
1790 	for (nn = nn->next; nn; nn = nn->next)
1791 		print_text(h, nn->string);
1792 
1793 	return(0);
1794 }
1795 
1796 
1797 /* ARGSUSED */
1798 static int
1799 mdoc_mt_pre(MDOC_ARGS)
1800 {
1801 	struct htmlpair	 	 tag[2];
1802 	struct tag		*t;
1803 	const struct mdoc_node	*nn;
1804 
1805 	PAIR_CLASS_INIT(&tag[0], "link-mail");
1806 
1807 	for (nn = n->child; nn; nn = nn->next) {
1808 		bufinit(h);
1809 		bufcat(h, "mailto:");
1810 		bufcat(h, nn->string);
1811 		PAIR_HREF_INIT(&tag[1], h->buf);
1812 		t = print_otag(h, TAG_A, 2, tag);
1813 		print_text(h, nn->string);
1814 		print_tagq(h, t);
1815 	}
1816 
1817 	return(0);
1818 }
1819 
1820 
1821 /* ARGSUSED */
1822 static int
1823 mdoc_fo_pre(MDOC_ARGS)
1824 {
1825 	struct htmlpair	tag;
1826 	struct roffsu	su;
1827 
1828 	if (MDOC_BODY == n->type) {
1829 		h->flags |= HTML_NOSPACE;
1830 		print_text(h, "(");
1831 		h->flags |= HTML_NOSPACE;
1832 		return(1);
1833 	} else if (MDOC_BLOCK == n->type && n->next) {
1834 		SCALE_VS_INIT(&su, 1);
1835 		bufcat_su(h, "margin-bottom", &su);
1836 		PAIR_STYLE_INIT(&tag, h);
1837 		print_otag(h, TAG_DIV, 1, &tag);
1838 		return(1);
1839 	}
1840 
1841 	PAIR_CLASS_INIT(&tag, "fname");
1842 	print_otag(h, TAG_SPAN, 1, &tag);
1843 	return(1);
1844 }
1845 
1846 
1847 /* ARGSUSED */
1848 static void
1849 mdoc_fo_post(MDOC_ARGS)
1850 {
1851 	if (MDOC_BODY != n->type)
1852 		return;
1853 	h->flags |= HTML_NOSPACE;
1854 	print_text(h, ")");
1855 	h->flags |= HTML_NOSPACE;
1856 	print_text(h, ";");
1857 }
1858 
1859 
1860 /* ARGSUSED */
1861 static int
1862 mdoc_in_pre(MDOC_ARGS)
1863 {
1864 	const struct mdoc_node	*nn;
1865 	struct tag		*t;
1866 	struct htmlpair		 tag[2];
1867 	int			 i;
1868 	struct roffsu		 su;
1869 
1870 	if (SEC_SYNOPSIS == n->sec) {
1871 		if (n->next && MDOC_In != n->next->tok) {
1872 			SCALE_VS_INIT(&su, 1);
1873 			bufcat_su(h, "margin-bottom", &su);
1874 			PAIR_STYLE_INIT(&tag[0], h);
1875 			print_otag(h, TAG_DIV, 1, tag);
1876 		} else
1877 			print_otag(h, TAG_DIV, 0, NULL);
1878 	}
1879 
1880 	/* FIXME: there's a buffer bug in here somewhere. */
1881 
1882 	PAIR_CLASS_INIT(&tag[0], "includes");
1883 	print_otag(h, TAG_SPAN, 1, tag);
1884 
1885 	if (SEC_SYNOPSIS == n->sec)
1886 		print_text(h, "#include");
1887 
1888 	print_text(h, "<");
1889 	h->flags |= HTML_NOSPACE;
1890 
1891 	/* XXX -- see warning in termp_in_post(). */
1892 
1893 	for (nn = n->child; nn; nn = nn->next) {
1894 		PAIR_CLASS_INIT(&tag[0], "link-includes");
1895 		i = 1;
1896 		bufinit(h);
1897 		if (h->base_includes) {
1898 			buffmt_includes(h, nn->string);
1899 			PAIR_HREF_INIT(&tag[i], h->buf);
1900 			i++;
1901 		}
1902 		t = print_otag(h, TAG_A, i, tag);
1903 		print_mdoc_node(m, nn, h);
1904 		print_tagq(h, t);
1905 	}
1906 
1907 	h->flags |= HTML_NOSPACE;
1908 	print_text(h, ">");
1909 
1910 	return(0);
1911 }
1912 
1913 
1914 /* ARGSUSED */
1915 static int
1916 mdoc_ic_pre(MDOC_ARGS)
1917 {
1918 	struct htmlpair	tag;
1919 
1920 	PAIR_CLASS_INIT(&tag, "cmd");
1921 	print_otag(h, TAG_SPAN, 1, &tag);
1922 	return(1);
1923 }
1924 
1925 
1926 /* ARGSUSED */
1927 static int
1928 mdoc_rv_pre(MDOC_ARGS)
1929 {
1930 	const struct mdoc_node	*nn;
1931 	struct htmlpair		 tag;
1932 	struct tag		*t;
1933 
1934 	print_otag(h, TAG_DIV, 0, NULL);
1935 	print_text(h, "The");
1936 
1937 	for (nn = n->child; nn; nn = nn->next) {
1938 		PAIR_CLASS_INIT(&tag, "fname");
1939 		t = print_otag(h, TAG_SPAN, 1, &tag);
1940 		print_text(h, nn->string);
1941 		print_tagq(h, t);
1942 
1943 		h->flags |= HTML_NOSPACE;
1944 		if (nn->next && NULL == nn->next->next)
1945 			print_text(h, "(), and");
1946 		else if (nn->next)
1947 			print_text(h, "(),");
1948 		else
1949 			print_text(h, "()");
1950 	}
1951 
1952 	if (n->child->next)
1953 		print_text(h, "functions return");
1954 	else
1955 		print_text(h, "function returns");
1956 
1957        	print_text(h, "the value 0 if successful; otherwise the value "
1958 			"-1 is returned and the global variable");
1959 
1960 	PAIR_CLASS_INIT(&tag, "var");
1961 	t = print_otag(h, TAG_SPAN, 1, &tag);
1962 	print_text(h, "errno");
1963 	print_tagq(h, t);
1964        	print_text(h, "is set to indicate the error.");
1965 	return(0);
1966 }
1967 
1968 
1969 /* ARGSUSED */
1970 static int
1971 mdoc_va_pre(MDOC_ARGS)
1972 {
1973 	struct htmlpair	tag;
1974 
1975 	PAIR_CLASS_INIT(&tag, "var");
1976 	print_otag(h, TAG_SPAN, 1, &tag);
1977 	return(1);
1978 }
1979 
1980 
1981 /* ARGSUSED */
1982 static int
1983 mdoc_bq_pre(MDOC_ARGS)
1984 {
1985 
1986 	if (MDOC_BODY != n->type)
1987 		return(1);
1988 	print_text(h, "\\(lB");
1989 	h->flags |= HTML_NOSPACE;
1990 	return(1);
1991 }
1992 
1993 
1994 /* ARGSUSED */
1995 static void
1996 mdoc_bq_post(MDOC_ARGS)
1997 {
1998 
1999 	if (MDOC_BODY != n->type)
2000 		return;
2001 	h->flags |= HTML_NOSPACE;
2002 	print_text(h, "\\(rB");
2003 }
2004 
2005 
2006 /* ARGSUSED */
2007 static int
2008 mdoc_ap_pre(MDOC_ARGS)
2009 {
2010 
2011 	h->flags |= HTML_NOSPACE;
2012 	print_text(h, "\\(aq");
2013 	h->flags |= HTML_NOSPACE;
2014 	return(1);
2015 }
2016 
2017 
2018 /* ARGSUSED */
2019 static int
2020 mdoc_bf_pre(MDOC_ARGS)
2021 {
2022 	int		 i;
2023 	struct htmlpair	 tag[2];
2024 	struct roffsu	 su;
2025 
2026 	if (MDOC_HEAD == n->type)
2027 		return(0);
2028 	else if (MDOC_BLOCK != n->type)
2029 		return(1);
2030 
2031 	PAIR_CLASS_INIT(&tag[0], "lit");
2032 
2033 	if (n->head->child) {
2034 		if ( ! strcmp("Em", n->head->child->string))
2035 			PAIR_CLASS_INIT(&tag[0], "emph");
2036 		else if ( ! strcmp("Sy", n->head->child->string))
2037 			PAIR_CLASS_INIT(&tag[0], "symb");
2038 		else if ( ! strcmp("Li", n->head->child->string))
2039 			PAIR_CLASS_INIT(&tag[0], "lit");
2040 	} else {
2041 		assert(n->args);
2042 		for (i = 0; i < (int)n->args->argc; i++)
2043 			switch (n->args->argv[i].arg) {
2044 			case (MDOC_Symbolic):
2045 				PAIR_CLASS_INIT(&tag[0], "symb");
2046 				break;
2047 			case (MDOC_Literal):
2048 				PAIR_CLASS_INIT(&tag[0], "lit");
2049 				break;
2050 			case (MDOC_Emphasis):
2051 				PAIR_CLASS_INIT(&tag[0], "emph");
2052 				break;
2053 			default:
2054 				break;
2055 			}
2056 	}
2057 
2058 	/* FIXME: div's have spaces stripped--we want them. */
2059 
2060 	bufcat_style(h, "display", "inline");
2061 	SCALE_HS_INIT(&su, 1);
2062 	bufcat_su(h, "margin-right", &su);
2063 	PAIR_STYLE_INIT(&tag[1], h);
2064 	print_otag(h, TAG_DIV, 2, tag);
2065 	return(1);
2066 }
2067 
2068 
2069 /* ARGSUSED */
2070 static int
2071 mdoc_ms_pre(MDOC_ARGS)
2072 {
2073 	struct htmlpair	tag;
2074 
2075 	PAIR_CLASS_INIT(&tag, "symb");
2076 	print_otag(h, TAG_SPAN, 1, &tag);
2077 	return(1);
2078 }
2079 
2080 
2081 /* ARGSUSED */
2082 static int
2083 mdoc_pf_pre(MDOC_ARGS)
2084 {
2085 
2086 	h->flags |= HTML_IGNDELIM;
2087 	return(1);
2088 }
2089 
2090 
2091 /* ARGSUSED */
2092 static void
2093 mdoc_pf_post(MDOC_ARGS)
2094 {
2095 
2096 	h->flags &= ~HTML_IGNDELIM;
2097 	h->flags |= HTML_NOSPACE;
2098 }
2099 
2100 
2101 /* ARGSUSED */
2102 static int
2103 mdoc_rs_pre(MDOC_ARGS)
2104 {
2105 	struct htmlpair	 tag;
2106 	struct roffsu	 su;
2107 
2108 	if (MDOC_BLOCK != n->type)
2109 		return(1);
2110 
2111 	if (n->prev && SEC_SEE_ALSO == n->sec) {
2112 		SCALE_VS_INIT(&su, 1);
2113 		bufcat_su(h, "margin-top", &su);
2114 		PAIR_STYLE_INIT(&tag, h);
2115 		print_otag(h, TAG_DIV, 1, &tag);
2116 	}
2117 
2118 	PAIR_CLASS_INIT(&tag, "ref");
2119 	print_otag(h, TAG_SPAN, 1, &tag);
2120 	return(1);
2121 }
2122 
2123 
2124 
2125 /* ARGSUSED */
2126 static int
2127 mdoc_li_pre(MDOC_ARGS)
2128 {
2129 	struct htmlpair	tag;
2130 
2131 	PAIR_CLASS_INIT(&tag, "lit");
2132 	print_otag(h, TAG_SPAN, 1, &tag);
2133 	return(1);
2134 }
2135 
2136 
2137 /* ARGSUSED */
2138 static int
2139 mdoc_sy_pre(MDOC_ARGS)
2140 {
2141 	struct htmlpair	tag;
2142 
2143 	PAIR_CLASS_INIT(&tag, "symb");
2144 	print_otag(h, TAG_SPAN, 1, &tag);
2145 	return(1);
2146 }
2147 
2148 
2149 /* ARGSUSED */
2150 static int
2151 mdoc_bt_pre(MDOC_ARGS)
2152 {
2153 
2154 	print_text(h, "is currently in beta test.");
2155 	return(0);
2156 }
2157 
2158 
2159 /* ARGSUSED */
2160 static int
2161 mdoc_ud_pre(MDOC_ARGS)
2162 {
2163 
2164 	print_text(h, "currently under development.");
2165 	return(0);
2166 }
2167 
2168 
2169 /* ARGSUSED */
2170 static int
2171 mdoc_lb_pre(MDOC_ARGS)
2172 {
2173 	struct htmlpair	tag;
2174 
2175 	if (SEC_SYNOPSIS == n->sec)
2176 		print_otag(h, TAG_DIV, 0, NULL);
2177 	PAIR_CLASS_INIT(&tag, "lib");
2178 	print_otag(h, TAG_SPAN, 1, &tag);
2179 	return(1);
2180 }
2181 
2182 
2183 /* ARGSUSED */
2184 static int
2185 mdoc__x_pre(MDOC_ARGS)
2186 {
2187 	struct htmlpair	tag[2];
2188 
2189 	switch (n->tok) {
2190 	case(MDOC__A):
2191 		PAIR_CLASS_INIT(&tag[0], "ref-auth");
2192 		break;
2193 	case(MDOC__B):
2194 		PAIR_CLASS_INIT(&tag[0], "ref-book");
2195 		break;
2196 	case(MDOC__C):
2197 		PAIR_CLASS_INIT(&tag[0], "ref-city");
2198 		break;
2199 	case(MDOC__D):
2200 		PAIR_CLASS_INIT(&tag[0], "ref-date");
2201 		break;
2202 	case(MDOC__I):
2203 		PAIR_CLASS_INIT(&tag[0], "ref-issue");
2204 		break;
2205 	case(MDOC__J):
2206 		PAIR_CLASS_INIT(&tag[0], "ref-jrnl");
2207 		break;
2208 	case(MDOC__N):
2209 		PAIR_CLASS_INIT(&tag[0], "ref-num");
2210 		break;
2211 	case(MDOC__O):
2212 		PAIR_CLASS_INIT(&tag[0], "ref-opt");
2213 		break;
2214 	case(MDOC__P):
2215 		PAIR_CLASS_INIT(&tag[0], "ref-page");
2216 		break;
2217 	case(MDOC__Q):
2218 		PAIR_CLASS_INIT(&tag[0], "ref-corp");
2219 		break;
2220 	case(MDOC__R):
2221 		PAIR_CLASS_INIT(&tag[0], "ref-rep");
2222 		break;
2223 	case(MDOC__T):
2224 		PAIR_CLASS_INIT(&tag[0], "ref-title");
2225 		print_text(h, "\\(lq");
2226 		h->flags |= HTML_NOSPACE;
2227 		break;
2228 	case(MDOC__U):
2229 		PAIR_CLASS_INIT(&tag[0], "link-ref");
2230 		break;
2231 	case(MDOC__V):
2232 		PAIR_CLASS_INIT(&tag[0], "ref-vol");
2233 		break;
2234 	default:
2235 		abort();
2236 		/* NOTREACHED */
2237 	}
2238 
2239 	if (MDOC__U != n->tok) {
2240 		print_otag(h, TAG_SPAN, 1, tag);
2241 		return(1);
2242 	}
2243 
2244 	PAIR_HREF_INIT(&tag[1], n->child->string);
2245 	print_otag(h, TAG_A, 2, tag);
2246 	return(1);
2247 }
2248 
2249 
2250 /* ARGSUSED */
2251 static void
2252 mdoc__x_post(MDOC_ARGS)
2253 {
2254 
2255 	h->flags |= HTML_NOSPACE;
2256 	switch (n->tok) {
2257 	case (MDOC__T):
2258 		print_text(h, "\\(rq");
2259 		h->flags |= HTML_NOSPACE;
2260 		break;
2261 	default:
2262 		break;
2263 	}
2264 	print_text(h, n->next ? "," : ".");
2265 }
2266