=================================================================== RCS file: /cvs/mandoc/man_html.c,v retrieving revision 1.54 retrieving revision 1.178 diff -u -p -r1.54 -r1.178 --- mandoc/man_html.c 2010/12/17 00:18:29 1.54 +++ mandoc/man_html.c 2020/04/04 20:33:33 1.178 @@ -1,22 +1,23 @@ -/* $Id: man_html.c,v 1.54 2010/12/17 00:18:29 kristaps Exp $ */ +/* $Id: man_html.c,v 1.178 2020/04/04 20:33:33 schwarze Exp $ */ /* - * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons + * Copyright (c) 2013-2015, 2017-2020 Ingo Schwarze + * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * HTML formatter for man(7) used by mandoc(1). */ -#ifdef HAVE_CONFIG_H #include "config.h" -#endif #include @@ -26,72 +27,61 @@ #include #include +#include "mandoc_aux.h" #include "mandoc.h" +#include "roff.h" +#include "man.h" #include "out.h" #include "html.h" -#include "man.h" #include "main.h" -/* TODO: preserve ident widths. */ -/* FIXME: have PD set the default vspace width. */ - -#define INDENT 5 -#define HALFINDENT 3 - -#define MAN_ARGS const struct man_meta *m, \ - const struct man_node *n, \ - struct mhtml *mh, \ +#define MAN_ARGS const struct roff_meta *man, \ + struct roff_node *n, \ struct html *h -struct mhtml { - int fl; -#define MANH_LITERAL (1 << 0) /* literal context */ -}; - -struct htmlman { +struct man_html_act { int (*pre)(MAN_ARGS); int (*post)(MAN_ARGS); }; -static void print_man(MAN_ARGS); -static void print_man_head(MAN_ARGS); +static void print_man_head(const struct roff_meta *, + struct html *); static void print_man_nodelist(MAN_ARGS); static void print_man_node(MAN_ARGS); - -static int a2width(const struct man_node *, - struct roffsu *); - -static int man_alt_pre(MAN_ARGS); -static int man_br_pre(MAN_ARGS); -static int man_ign_pre(MAN_ARGS); -static int man_in_pre(MAN_ARGS); -static int man_literal_pre(MAN_ARGS); -static void man_root_post(MAN_ARGS); -static int man_root_pre(MAN_ARGS); +static char list_continues(const struct roff_node *, + const struct roff_node *); static int man_B_pre(MAN_ARGS); -static int man_HP_pre(MAN_ARGS); -static int man_I_pre(MAN_ARGS); static int man_IP_pre(MAN_ARGS); +static int man_I_pre(MAN_ARGS); +static int man_OP_pre(MAN_ARGS); static int man_PP_pre(MAN_ARGS); static int man_RS_pre(MAN_ARGS); -static int man_SB_pre(MAN_ARGS); static int man_SH_pre(MAN_ARGS); static int man_SM_pre(MAN_ARGS); -static int man_SS_pre(MAN_ARGS); +static int man_SY_pre(MAN_ARGS); +static int man_UR_pre(MAN_ARGS); +static int man_abort_pre(MAN_ARGS); +static int man_alt_pre(MAN_ARGS); +static int man_ign_pre(MAN_ARGS); +static int man_in_pre(MAN_ARGS); +static void man_root_post(const struct roff_meta *, + struct html *); +static void man_root_pre(const struct roff_meta *, + struct html *); -static const struct htmlman mans[MAN_MAX] = { - { man_br_pre, NULL }, /* br */ +static const struct man_html_act man_html_acts[MAN_MAX - MAN_TH] = { { NULL, NULL }, /* TH */ { man_SH_pre, NULL }, /* SH */ - { man_SS_pre, NULL }, /* SS */ + { man_SH_pre, NULL }, /* SS */ { man_IP_pre, NULL }, /* TP */ - { man_PP_pre, NULL }, /* LP */ + { man_IP_pre, NULL }, /* TQ */ + { man_abort_pre, NULL }, /* LP */ { man_PP_pre, NULL }, /* PP */ - { man_PP_pre, NULL }, /* P */ + { man_abort_pre, NULL }, /* P */ { man_IP_pre, NULL }, /* IP */ - { man_HP_pre, NULL }, /* HP */ + { man_PP_pre, NULL }, /* HP */ { man_SM_pre, NULL }, /* SM */ - { man_SB_pre, NULL }, /* SB */ + { man_SM_pre, NULL }, /* SB */ { man_alt_pre, NULL }, /* BI */ { man_alt_pre, NULL }, /* IB */ { man_alt_pre, NULL }, /* BR */ @@ -101,10 +91,6 @@ static const struct htmlman mans[MAN_MAX] = { { man_I_pre, NULL }, /* I */ { man_alt_pre, NULL }, /* IR */ { man_alt_pre, NULL }, /* RI */ - { NULL, NULL }, /* na */ - { man_br_pre, NULL }, /* sp */ - { man_literal_pre, NULL }, /* nf */ - { man_literal_pre, NULL }, /* fi */ { NULL, NULL }, /* RE */ { man_RS_pre, NULL }, /* RS */ { man_ign_pre, NULL }, /* DT */ @@ -112,622 +98,545 @@ static const struct htmlman mans[MAN_MAX] = { { man_ign_pre, NULL }, /* PD */ { man_ign_pre, NULL }, /* AT */ { man_in_pre, NULL }, /* in */ - { man_ign_pre, NULL }, /* ft */ + { man_SY_pre, NULL }, /* SY */ + { NULL, NULL }, /* YS */ + { man_OP_pre, NULL }, /* OP */ + { NULL, NULL }, /* EX */ + { NULL, NULL }, /* EE */ + { man_UR_pre, NULL }, /* UR */ + { NULL, NULL }, /* UE */ + { man_UR_pre, NULL }, /* MT */ + { NULL, NULL }, /* ME */ }; void -html_man(void *arg, const struct man *m) +html_man(void *arg, const struct roff_meta *man) { - struct html *h; - struct tag *t; - struct mhtml mh; + struct html *h; + struct roff_node *n; + struct tag *t; h = (struct html *)arg; + n = man->first->child; - print_gen_decls(h); + if ((h->oflags & HTML_FRAGMENT) == 0) { + print_gen_decls(h); + print_otag(h, TAG_HTML, ""); + if (n != NULL && n->type == ROFFT_COMMENT) + print_gen_comment(h, n); + t = print_otag(h, TAG_HEAD, ""); + print_man_head(man, h); + print_tagq(h, t); + print_otag(h, TAG_BODY, ""); + } - memset(&mh, 0, sizeof(struct mhtml)); - - t = print_otag(h, TAG_HTML, 0, NULL); - print_man(man_meta(m), man_node(m), &mh, h); + man_root_pre(man, h); + t = print_otag(h, TAG_DIV, "c", "manual-text"); + print_man_nodelist(man, n, h); print_tagq(h, t); - - printf("\n"); + man_root_post(man, h); + print_tagq(h, NULL); } - static void -print_man(MAN_ARGS) +print_man_head(const struct roff_meta *man, struct html *h) { - struct tag *t; + char *cp; - t = print_otag(h, TAG_HEAD, 0, NULL); - print_man_head(m, n, mh, h); - print_tagq(h, t); - - t = print_otag(h, TAG_BODY, 0, NULL); - print_man_nodelist(m, n, mh, h); - print_tagq(h, t); -} - - -/* ARGSUSED */ -static void -print_man_head(MAN_ARGS) -{ - print_gen_head(h); - bufinit(h); - buffmt(h, "%s(%s)", m->title, m->msec); - - print_otag(h, TAG_TITLE, 0, NULL); - print_text(h, h->buf); + mandoc_asprintf(&cp, "%s(%s)", man->title, man->msec); + print_otag(h, TAG_TITLE, ""); + print_text(h, cp); + free(cp); } - static void print_man_nodelist(MAN_ARGS) { - - print_man_node(m, n, mh, h); - if (n->next) - print_man_nodelist(m, n->next, mh, h); + while (n != NULL) { + print_man_node(man, n, h); + n = n->next; + } } - static void print_man_node(MAN_ARGS) { - int child; struct tag *t; + int child; - child = 1; - t = h->tags.head; + if (n->type == ROFFT_COMMENT || n->flags & NODE_NOPRT) + return; - bufinit(h); + html_fillmode(h, n->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi); - /* - * FIXME: embedded elements within next-line scopes (e.g., `br' - * within an empty `B') will cause formatting to be forgotten - * due to scope closing out. - */ - + child = 1; switch (n->type) { - case (MAN_ROOT): - child = man_root_pre(m, n, mh, h); - break; - case (MAN_TEXT): + case ROFFT_TEXT: + if (*n->string == '\0') { + print_endline(h); + return; + } + if (*n->string == ' ' && n->flags & NODE_LINE && + (h->flags & HTML_NONEWLINE) == 0) + print_otag(h, TAG_BR, ""); + else if (n->flags & NODE_DELIMC) + h->flags |= HTML_NOSPACE; + t = h->tag; + t->refcnt++; print_text(h, n->string); - - if (MANH_LITERAL & mh->fl) - print_otag(h, TAG_BR, 0, NULL); - + break; + case ROFFT_EQN: + t = h->tag; + t->refcnt++; + print_eqn(h, n->eqn); + break; + case ROFFT_TBL: + /* + * This will take care of initialising all of the table + * state data for the first table, then tearing it down + * for the last one. + */ + print_tbl(h, n->span); return; default: - /* + /* * Close out scope of font prior to opening a macro - * scope. Assert that the metafont is on the top of the - * stack (it's never nested). + * scope. */ - if (h->metaf) { - assert(h->metaf == t); - print_tagq(h, h->metaf); - assert(NULL == h->metaf); - t = h->tags.head; + if (h->metac != ESCAPE_FONTROMAN) { + h->metal = h->metac; + h->metac = ESCAPE_FONTROMAN; } - if (mans[n->tok].pre) - child = (*mans[n->tok].pre)(m, n, mh, h); + + /* + * Close out the current table, if it's open, and unset + * the "meta" table state. This will be reopened on the + * next table element. + */ + if (h->tblt != NULL) + print_tblclose(h); + t = h->tag; + t->refcnt++; + if (n->tok < ROFF_MAX) { + roff_html_pre(h, n); + t->refcnt--; + print_stagq(h, t); + return; + } + assert(n->tok >= MAN_TH && n->tok < MAN_MAX); + if (man_html_acts[n->tok - MAN_TH].pre != NULL) + child = (*man_html_acts[n->tok - MAN_TH].pre)(man, + n, h); break; } - if (child && n->child) - print_man_nodelist(m, n->child, mh, h); + if (child && n->child != NULL) + print_man_nodelist(man, n->child, h); /* This will automatically close out any font scope. */ - print_stagq(h, t); + t->refcnt--; + if (n->type == ROFFT_BLOCK && + (n->tok == MAN_IP || n->tok == MAN_TP || n->tok == MAN_TQ)) { + t = h->tag; + while (t->tag != TAG_DL && t->tag != TAG_UL) + t = t->next; + /* + * Close the list if no further item of the same type + * follows; otherwise, close the item only. + */ + if (list_continues(n, roff_node_next(n)) == '\0') { + print_tagq(h, t); + t = NULL; + } + } + if (t != NULL) + print_stagq(h, t); - bufinit(h); - - switch (n->type) { - case (MAN_ROOT): - man_root_post(m, n, mh, h); - break; - case (MAN_TEXT): - break; - default: - if (mans[n->tok].post) - (*mans[n->tok].post)(m, n, mh, h); - break; + if (n->flags & NODE_NOFILL && n->tok != MAN_YS && + (n->next != NULL && n->next->flags & NODE_LINE)) { + /* In .nf =
, print even empty lines. */
+		h->col++;
+		print_endline(h);
 	}
 }
 
-
-static int
-a2width(const struct man_node *n, struct roffsu *su)
+static void
+man_root_pre(const struct roff_meta *man, struct html *h)
 {
-
-	if (MAN_TEXT != n->type)
-		return(0);
-	if (a2roffsu(n->string, su, SCALE_BU))
-		return(1);
-
-	return(0);
-}
-
-
-/* ARGSUSED */
-static int
-man_root_pre(MAN_ARGS)
-{
-	struct htmlpair	 tag[3];
 	struct tag	*t, *tt;
-	char		 b[BUFSIZ], title[BUFSIZ];
+	char		*title;
 
-	b[0] = 0;
-	if (m->vol)
-		(void)strlcat(b, m->vol, BUFSIZ);
+	assert(man->title);
+	assert(man->msec);
+	mandoc_asprintf(&title, "%s(%s)", man->title, man->msec);
 
-	snprintf(title, BUFSIZ - 1, "%s(%s)", m->title, m->msec);
+	t = print_otag(h, TAG_TABLE, "c", "head");
+	tt = print_otag(h, TAG_TR, "");
 
-	PAIR_CLASS_INIT(&tag[0], "header");
-	bufcat_style(h, "width", "100%");
-	PAIR_STYLE_INIT(&tag[1], h);
-	PAIR_SUMMARY_INIT(&tag[2], "header");
-
-	t = print_otag(h, TAG_TABLE, 3, tag);
-	tt = print_otag(h, TAG_TR, 0, NULL);
-
-	bufinit(h);
-	bufcat_style(h, "width", "10%");
-	PAIR_STYLE_INIT(&tag[0], h);
-	print_otag(h, TAG_TD, 1, tag);
+	print_otag(h, TAG_TD, "c", "head-ltitle");
 	print_text(h, title);
 	print_stagq(h, tt);
 
-	bufinit(h);
-	bufcat_style(h, "width", "80%");
-	bufcat_style(h, "white-space", "nowrap");
-	bufcat_style(h, "text-align", "center");
-	PAIR_STYLE_INIT(&tag[0], h);
-	print_otag(h, TAG_TD, 1, tag);
-	print_text(h, b);
+	print_otag(h, TAG_TD, "c", "head-vol");
+	if (man->vol != NULL)
+		print_text(h, man->vol);
 	print_stagq(h, tt);
 
-	bufinit(h);
-	bufcat_style(h, "width", "10%");
-	bufcat_style(h, "text-align", "right");
-	PAIR_STYLE_INIT(&tag[0], h);
-	print_otag(h, TAG_TD, 1, tag);
+	print_otag(h, TAG_TD, "c", "head-rtitle");
 	print_text(h, title);
 	print_tagq(h, t);
-	return(1);
+	free(title);
 }
 
-
-/* ARGSUSED */
 static void
-man_root_post(MAN_ARGS)
+man_root_post(const struct roff_meta *man, struct html *h)
 {
-	struct htmlpair	 tag[3];
 	struct tag	*t, *tt;
-	char		 b[DATESIZ];
 
-	if (m->rawdate)
-		strlcpy(b, m->rawdate, DATESIZ);
-	else
-		time2a(m->date, b, DATESIZ);
+	t = print_otag(h, TAG_TABLE, "c", "foot");
+	tt = print_otag(h, TAG_TR, "");
 
-	PAIR_CLASS_INIT(&tag[0], "footer");
-	bufcat_style(h, "width", "100%");
-	PAIR_STYLE_INIT(&tag[1], h);
-	PAIR_SUMMARY_INIT(&tag[2], "footer");
-
-	t = print_otag(h, TAG_TABLE, 3, tag);
-	tt = print_otag(h, TAG_TR, 0, NULL);
-
-	bufinit(h);
-	bufcat_style(h, "width", "50%");
-	PAIR_STYLE_INIT(&tag[0], h);
-	print_otag(h, TAG_TD, 1, tag);
-	print_text(h, b);
+	print_otag(h, TAG_TD, "c", "foot-date");
+	print_text(h, man->date);
 	print_stagq(h, tt);
 
-	bufinit(h);
-	bufcat_style(h, "width", "50%");
-	bufcat_style(h, "text-align", "right");
-	PAIR_STYLE_INIT(&tag[0], h);
-	print_otag(h, TAG_TD, 1, tag);
-	if (m->source)
-		print_text(h, m->source);
+	print_otag(h, TAG_TD, "c", "foot-os");
+	if (man->os != NULL)
+		print_text(h, man->os);
 	print_tagq(h, t);
 }
 
-
-
-/* ARGSUSED */
 static int
-man_br_pre(MAN_ARGS)
-{
-	struct roffsu	 su;
-	struct htmlpair	 tag;
-
-	SCALE_VS_INIT(&su, 1);
-
-	if (MAN_sp == n->tok) {
-		if (n->child)
-			a2roffsu(n->child->string, &su, SCALE_VS);
-	} else
-		su.scale = 0;
-
-	bufcat_su(h, "height", &su);
-	PAIR_STYLE_INIT(&tag, h);
-	print_otag(h, TAG_DIV, 1, &tag);
-
-	/* So the div isn't empty: */
-	print_text(h, "\\~");
-
-	return(0);
-}
-
-
-/* ARGSUSED */
-static int
 man_SH_pre(MAN_ARGS)
 {
-	struct htmlpair	 tag;
+	const char	*class;
+	enum htmltag	 tag;
 
-	if (MAN_BLOCK == n->type) {
-		PAIR_CLASS_INIT(&tag, "section");
-		print_otag(h, TAG_DIV, 1, &tag);
-		return(1);
-	} else if (MAN_BODY == n->type)
-		return(1);
-
-	print_otag(h, TAG_H1, 0, NULL);
-	return(1);
+	if (n->tok == MAN_SH) {
+		tag = TAG_H1;
+		class = "Sh";
+	} else {
+		tag = TAG_H2;
+		class = "Ss";
+	}
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		html_close_paragraph(h);
+		print_otag(h, TAG_SECTION, "c", class);
+		break;
+	case ROFFT_HEAD:
+		print_otag_id(h, tag, class, n);
+		break;
+	case ROFFT_BODY:
+		break;
+	default:
+		abort();
+	}
+	return 1;
 }
 
-
-/* ARGSUSED */
 static int
 man_alt_pre(MAN_ARGS)
 {
-	const struct man_node	*nn;
-	struct tag		*t;
-	int			 i;
-	enum htmlfont		 fp;
+	const struct roff_node	*nn;
+	struct tag	*t;
+	int		 i;
+	enum htmltag	 fp;
 
-	for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
+	for (i = 0, nn = n->child; nn != NULL; nn = nn->next, i++) {
 		switch (n->tok) {
-		case (MAN_BI):
-			fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_BOLD;
+		case MAN_BI:
+			fp = i % 2 ? TAG_I : TAG_B;
 			break;
-		case (MAN_IB):
-			fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_ITALIC;
+		case MAN_IB:
+			fp = i % 2 ? TAG_B : TAG_I;
 			break;
-		case (MAN_RI):
-			fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_NONE;
+		case MAN_RI:
+			fp = i % 2 ? TAG_I : TAG_MAX;
 			break;
-		case (MAN_IR):
-			fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_ITALIC;
+		case MAN_IR:
+			fp = i % 2 ? TAG_MAX : TAG_I;
 			break;
-		case (MAN_BR):
-			fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_BOLD;
+		case MAN_BR:
+			fp = i % 2 ? TAG_MAX : TAG_B;
 			break;
-		case (MAN_RB):
-			fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_NONE;
+		case MAN_RB:
+			fp = i % 2 ? TAG_B : TAG_MAX;
 			break;
 		default:
 			abort();
-			/* NOTREACHED */
 		}
 
 		if (i)
 			h->flags |= HTML_NOSPACE;
 
-		/* 
-		 * Open and close the scope with each argument, so that
-		 * internal \f escapes, which are common, are also
-		 * closed out with the scope.
-		 */
-		t = print_ofont(h, fp);
-		print_man_node(m, nn, mh, h);
-		print_tagq(h, t);
-	}
+		if (fp != TAG_MAX)
+			t = print_otag(h, fp, "");
 
-	return(0);
-}
+		print_text(h, nn->string);
 
-
-/* ARGSUSED */
-static int
-man_SB_pre(MAN_ARGS)
-{
-	struct htmlpair	 tag;
-	
-	/* FIXME: print_ofont(). */
-	PAIR_CLASS_INIT(&tag, "small bold");
-	print_otag(h, TAG_SPAN, 1, &tag);
-	return(1);
+		if (fp != TAG_MAX)
+			print_tagq(h, t);
+	}
+	return 0;
 }
 
-
-/* ARGSUSED */
 static int
 man_SM_pre(MAN_ARGS)
 {
-	struct htmlpair	 tag;
-	
-	PAIR_CLASS_INIT(&tag, "small");
-	print_otag(h, TAG_SPAN, 1, &tag);
-	return(1);
+	print_otag(h, TAG_SMALL, "");
+	if (n->tok == MAN_SB)
+		print_otag(h, TAG_B, "");
+	return 1;
 }
 
-
-/* ARGSUSED */
 static int
-man_SS_pre(MAN_ARGS)
+man_PP_pre(MAN_ARGS)
 {
-	struct htmlpair	 tag;
-
-	if (MAN_BLOCK == n->type) {
-		PAIR_CLASS_INIT(&tag, "subsection");
-		print_otag(h, TAG_DIV, 1, &tag);
-		return(1);
-	} else if (MAN_BODY == n->type)
-		return(1);
-
-	print_otag(h, TAG_H2, 0, NULL);
-	return(1);
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		html_close_paragraph(h);
+		break;
+	case ROFFT_HEAD:
+		return 0;
+	case ROFFT_BODY:
+		if (n->child != NULL &&
+		    (n->child->flags & NODE_NOFILL) == 0)
+			print_otag(h, TAG_P, "c",
+			    n->tok == MAN_PP ? "Pp" : "Pp HP");
+		break;
+	default:
+		abort();
+	}
+	return 1;
 }
 
-
-/* ARGSUSED */
-static int
-man_PP_pre(MAN_ARGS)
+static char
+list_continues(const struct roff_node *n1, const struct roff_node *n2)
 {
-	struct htmlpair	 tag;
-	struct roffsu	 su;
-	int		 i;
+	const char *s1, *s2;
+	char c1, c2;
 
-	if (MAN_BODY == n->type)
-		return(1);
-	if (MAN_HEAD == n->type)
-		return(0);
-
-	i = 0;
-
-	if (MAN_ROOT == n->parent->type) {
-		SCALE_HS_INIT(&su, INDENT);
-		bufcat_su(h, "margin-left", &su);
-		i = 1;
-	}
-	if (n->prev) {
-		SCALE_VS_INIT(&su, 1);
-		bufcat_su(h, "margin-top", &su);
-		i = 1;
-	}
-
-	PAIR_STYLE_INIT(&tag, h);
-	print_otag(h, TAG_DIV, i, &tag);
-
-	return(1);
+	if (n1 == NULL || n1->type != ROFFT_BLOCK ||
+	    n2 == NULL || n2->type != ROFFT_BLOCK)
+		return '\0';
+	if ((n1->tok == MAN_TP || n1->tok == MAN_TQ) &&
+	    (n2->tok == MAN_TP || n2->tok == MAN_TQ))
+		return ' ';
+	if (n1->tok != MAN_IP || n2->tok != MAN_IP)
+		return '\0';
+	n1 = n1->head->child;
+	n2 = n2->head->child;
+	s1 = n1 == NULL ? "" : n1->string;
+	s2 = n2 == NULL ? "" : n2->string;
+	c1 = strcmp(s1, "*") == 0 ? '*' :
+	     strcmp(s1, "\\-") == 0 ? '-' :
+	     strcmp(s1, "\\(bu") == 0 ? 'b' : ' ';
+	c2 = strcmp(s2, "*") == 0 ? '*' :
+	     strcmp(s2, "\\-") == 0 ? '-' :
+	     strcmp(s2, "\\(bu") == 0 ? 'b' : ' ';
+	return c1 != c2 ? '\0' : c1 == 'b' ? '*' : c1;
 }
 
-
-/* ARGSUSED */
 static int
 man_IP_pre(MAN_ARGS)
 {
-	struct roffsu		 su;
-	struct htmlpair	 	 tag;
-	const struct man_node	*nn;
-	int			 width;
+	struct roff_node	*nn;
+	const char		*list_class;
+	enum htmltag		 list_elem, body_elem;
+	char			 list_type;
 
-	/*
-	 * This scattering of 1-BU margins and pads is to make sure that
-	 * when text overruns its box, the subsequent text isn't flush
-	 * up against it.  However, the rest of the right-hand box must
-	 * also be adjusted in consideration of this 1-BU space.
-	 */
-
-	if (MAN_BODY == n->type) { 
-		SCALE_HS_INIT(&su, INDENT);
-		bufcat_su(h, "margin-left", &su);
-		PAIR_STYLE_INIT(&tag, h);
-		print_otag(h, TAG_DIV, 1, &tag);
-		return(1);
+	nn = n->type == ROFFT_BLOCK ? n : n->parent;
+	list_type = list_continues(roff_node_prev(nn), nn);
+	if (list_type == '\0') {
+		/* Start a new list. */
+		list_type = list_continues(nn, roff_node_next(nn));
+		if (list_type == '\0')
+			list_type = ' ';
+		switch (list_type) {
+		case ' ':
+			list_class = "Bl-tag";
+			list_elem = TAG_DL;
+			break;
+		case '*':
+			list_class = "Bl-bullet";
+			list_elem = TAG_UL;
+			break;
+		case '-':
+			list_class = "Bl-dash";
+			list_elem = TAG_UL;
+			break;
+		default:
+			abort();
+		}
+	} else {
+		/* Continue a list that was started earlier. */
+		list_class = NULL;
+		list_elem = TAG_MAX;
 	}
+	body_elem = list_type == ' ' ? TAG_DD : TAG_LI;
 
-	nn = MAN_BLOCK == n->type ? 
-		n->head->child : n->parent->head->child;
-
-	SCALE_HS_INIT(&su, INDENT);
-	width = 0;
-
-	/* Width is the last token. */
-
-	if (MAN_IP == n->tok && NULL != nn)
-		if (NULL != (nn = nn->next)) {
-			for ( ; nn->next; nn = nn->next)
-				/* Do nothing. */ ;
-			width = a2width(nn, &su);
-		}
-
-	/* Width is the first token. */
-
-	if (MAN_TP == n->tok && NULL != nn) {
-		/* Skip past non-text children. */
-		while (nn && MAN_TEXT != nn->type)
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		html_close_paragraph(h);
+		if (list_elem != TAG_MAX)
+			print_otag(h, list_elem, "c", list_class);
+		return 1;
+	case ROFFT_HEAD:
+		if (body_elem == TAG_LI)
+			return 0;
+		print_otag_id(h, TAG_DT, NULL, n);
+		break;
+	case ROFFT_BODY:
+		print_otag(h, body_elem, "");
+		return 1;
+	default:
+		abort();
+	}
+	switch(n->tok) {
+	case MAN_IP:  /* Only print the first header element. */
+		if (n->child != NULL)
+			print_man_node(man, n->child, h);
+		break;
+	case MAN_TP:  /* Only print next-line header elements. */
+	case MAN_TQ:
+		nn = n->child;
+		while (nn != NULL && (NODE_LINE & nn->flags) == 0)
 			nn = nn->next;
-		if (nn)
-			width = a2width(nn, &su);
+		while (nn != NULL) {
+			print_man_node(man, nn, h);
+			nn = nn->next;
+		}
+		break;
+	default:
+		abort();
 	}
-
-	if (MAN_BLOCK == n->type) {
-		bufcat_su(h, "margin-left", &su);
-		SCALE_VS_INIT(&su, 1);
-		bufcat_su(h, "margin-top", &su);
-		bufcat_style(h, "clear", "both");
-		PAIR_STYLE_INIT(&tag, h);
-		print_otag(h, TAG_DIV, 1, &tag);
-		return(1);
-	} 
-
-	bufcat_su(h, "min-width", &su);
-	SCALE_INVERT(&su);
-	bufcat_su(h, "margin-left", &su);
-	SCALE_HS_INIT(&su, 1);
-	bufcat_su(h, "margin-right", &su);
-	bufcat_style(h, "clear", "left");
-
-	if (n->next && n->next->child)
-		bufcat_style(h, "float", "left");
-
-	PAIR_STYLE_INIT(&tag, h);
-	print_otag(h, TAG_DIV, 1, &tag);
-
-	/*
-	 * Without a length string, we can print all of our children.
-	 */
-
-	if ( ! width)
-		return(1);
-
-	/*
-	 * When a length has been specified, we need to carefully print
-	 * our child context:  IP gets all children printed but the last
-	 * (the width), while TP gets all children printed but the first
-	 * (the width).
-	 */
-
-	if (MAN_IP == n->tok)
-		for (nn = n->child; nn->next; nn = nn->next)
-			print_man_node(m, nn, mh, h);
-	if (MAN_TP == n->tok)
-		for (nn = n->child->next; nn; nn = nn->next)
-			print_man_node(m, nn, mh, h);
-
-	return(0);
+	return 0;
 }
 
-
-/* ARGSUSED */
 static int
-man_HP_pre(MAN_ARGS)
+man_OP_pre(MAN_ARGS)
 {
-	const struct man_node	*nn;
-	struct htmlpair	 	 tag;
-	struct roffsu		 su;
+	struct tag	*tt;
 
-	if (MAN_HEAD == n->type)
-		return(0);
+	print_text(h, "[");
+	h->flags |= HTML_NOSPACE;
+	tt = print_otag(h, TAG_SPAN, "c", "Op");
 
-	nn = MAN_BLOCK == n->type ?
-		n->head->child : n->parent->head->child;
+	if ((n = n->child) != NULL) {
+		print_otag(h, TAG_B, "");
+		print_text(h, n->string);
+	}
 
-	SCALE_HS_INIT(&su, INDENT);
+	print_stagq(h, tt);
 
-	if (NULL != nn)
-		(void)a2width(nn, &su);
-
-	if (MAN_BLOCK == n->type) {
-		bufcat_su(h, "margin-left", &su);
-		SCALE_VS_INIT(&su, 1);
-		bufcat_su(h, "margin-top", &su);
-		bufcat_style(h, "clear", "both");
-		PAIR_STYLE_INIT(&tag, h);
-		print_otag(h, TAG_DIV, 1, &tag);
-		return(1);
+	if (n != NULL && n->next != NULL) {
+		print_otag(h, TAG_I, "");
+		print_text(h, n->next->string);
 	}
 
-	bufcat_su(h, "margin-left", &su);
-	SCALE_INVERT(&su);
-	bufcat_su(h, "text-indent", &su);
-
-	PAIR_STYLE_INIT(&tag, h);
-	print_otag(h, TAG_DIV, 1, &tag);
-	return(1);
+	print_stagq(h, tt);
+	h->flags |= HTML_NOSPACE;
+	print_text(h, "]");
+	return 0;
 }
 
-
-/* ARGSUSED */
 static int
 man_B_pre(MAN_ARGS)
 {
-
-	print_ofont(h, HTMLFONT_BOLD);
-	return(1);
+	print_otag(h, TAG_B, "");
+	return 1;
 }
 
-
-/* ARGSUSED */
 static int
 man_I_pre(MAN_ARGS)
 {
-	
-	print_ofont(h, HTMLFONT_ITALIC);
-	return(1);
+	print_otag(h, TAG_I, "");
+	return 1;
 }
 
-
-/* ARGSUSED */
 static int
-man_literal_pre(MAN_ARGS)
+man_in_pre(MAN_ARGS)
 {
-
-	if (MAN_nf == n->tok) {
-		print_otag(h, TAG_BR, 0, NULL);
-		mh->fl |= MANH_LITERAL;
-	} else
-		mh->fl &= ~MANH_LITERAL;
-
-	return(1);
+	print_otag(h, TAG_BR, "");
+	return 0;
 }
 
-
-/* ARGSUSED */
 static int
-man_in_pre(MAN_ARGS)
+man_ign_pre(MAN_ARGS)
 {
-
-	print_otag(h, TAG_BR, 0, NULL);
-	return(0);
+	return 0;
 }
 
-
-/* ARGSUSED */
 static int
-man_ign_pre(MAN_ARGS)
+man_RS_pre(MAN_ARGS)
 {
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		html_close_paragraph(h);
+		break;
+	case ROFFT_HEAD:
+		return 0;
+	case ROFFT_BODY:
+		print_otag(h, TAG_DIV, "c", "Bd-indent");
+		break;
+	default:
+		abort();
+	}
+	return 1;
+}
 
-	return(0);
+static int
+man_SY_pre(MAN_ARGS)
+{
+	switch (n->type) {
+	case ROFFT_BLOCK:
+		html_close_paragraph(h);
+		print_otag(h, TAG_TABLE, "c", "Nm");
+		print_otag(h, TAG_TR, "");
+		break;
+	case ROFFT_HEAD:
+		print_otag(h, TAG_TD, "");
+		print_otag(h, TAG_CODE, "c", "Nm");
+		break;
+	case ROFFT_BODY:
+		print_otag(h, TAG_TD, "");
+		break;
+	default:
+		abort();
+	}
+	return 1;
 }
 
-
-/* ARGSUSED */
 static int
-man_RS_pre(MAN_ARGS)
+man_UR_pre(MAN_ARGS)
 {
-	struct htmlpair	 tag;
-	struct roffsu	 su;
+	char *cp;
 
-	if (MAN_HEAD == n->type)
-		return(0);
-	else if (MAN_BODY == n->type)
-		return(1);
+	n = n->child;
+	assert(n->type == ROFFT_HEAD);
+	if (n->child != NULL) {
+		assert(n->child->type == ROFFT_TEXT);
+		if (n->tok == MAN_MT) {
+			mandoc_asprintf(&cp, "mailto:%s", n->child->string);
+			print_otag(h, TAG_A, "ch", "Mt", cp);
+			free(cp);
+		} else
+			print_otag(h, TAG_A, "ch", "Lk", n->child->string);
+	}
 
-	SCALE_HS_INIT(&su, INDENT);
-	bufcat_su(h, "margin-left", &su);
+	assert(n->next->type == ROFFT_BODY);
+	if (n->next->child != NULL)
+		n = n->next;
 
-	if (n->head->child) {
-		SCALE_VS_INIT(&su, 1);
-		a2width(n->head->child, &su);
-		bufcat_su(h, "margin-top", &su);
-	}
+	print_man_nodelist(man, n->child, h);
+	return 0;
+}
 
-	PAIR_STYLE_INIT(&tag, h);
-	print_otag(h, TAG_DIV, 1, &tag);
-	return(1);
+static int
+man_abort_pre(MAN_ARGS)
+{
+	abort();
 }