===================================================================
RCS file: /cvs/mandoc/mdoc_html.c,v
retrieving revision 1.43
retrieving revision 1.101
diff -u -p -r1.43 -r1.101
--- mandoc/mdoc_html.c	2009/10/30 18:53:08	1.43
+++ mandoc/mdoc_html.c	2010/08/07 17:20:17	1.101
@@ -1,6 +1,6 @@
-/*	$Id: mdoc_html.c,v 1.43 2009/10/30 18:53:08 kristaps Exp $ */
+/*	$Id: mdoc_html.c,v 1.101 2010/08/07 17:20:17 schwarze Exp $ */
 /*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -14,8 +14,11 @@
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include <sys/types.h>
-#include <sys/param.h>
 
 #include <assert.h>
 #include <ctype.h>
@@ -24,6 +27,7 @@
 #include <string.h>
 #include <unistd.h>
 
+#include "mandoc.h"
 #include "out.h"
 #include "html.h"
 #include "mdoc.h"
@@ -36,6 +40,10 @@
 			  const struct mdoc_node *n, \
 			  struct html *h
 
+#ifndef MIN
+#define	MIN(a,b)	((/*CONSTCOND*/(a)<(b))?(a):(b))
+#endif
+
 struct	htmlmdoc {
 	int		(*pre)(MDOC_ARGS);
 	void		(*post)(MDOC_ARGS);
@@ -45,12 +53,12 @@ static	void		  print_mdoc(MDOC_ARGS);
 static	void		  print_mdoc_head(MDOC_ARGS);
 static	void		  print_mdoc_node(MDOC_ARGS);
 static	void		  print_mdoc_nodelist(MDOC_ARGS);
+static	void	  	  synopsis_pre(struct html *, 
+				const struct mdoc_node *);
 
 static	void		  a2width(const char *, struct roffsu *);
 static	void		  a2offs(const char *, struct roffsu *);
 
-static	int		  a2list(const struct mdoc_node *);
-
 static	void		  mdoc_root_post(MDOC_ARGS);
 static	int		  mdoc_root_pre(MDOC_ARGS);
 
@@ -64,6 +72,8 @@ static	int		  mdoc_aq_pre(MDOC_ARGS);
 static	int		  mdoc_ar_pre(MDOC_ARGS);
 static	int		  mdoc_bd_pre(MDOC_ARGS);
 static	int		  mdoc_bf_pre(MDOC_ARGS);
+static	void		  mdoc_bk_post(MDOC_ARGS);
+static	int		  mdoc_bk_pre(MDOC_ARGS);
 static	void		  mdoc_bl_post(MDOC_ARGS);
 static	int		  mdoc_bl_pre(MDOC_ARGS);
 static	void		  mdoc_bq_post(MDOC_ARGS);
@@ -90,11 +100,12 @@ static	void		  mdoc_fo_post(MDOC_ARGS);
 static	int		  mdoc_fo_pre(MDOC_ARGS);
 static	int		  mdoc_ic_pre(MDOC_ARGS);
 static	int		  mdoc_in_pre(MDOC_ARGS);
-static	int		  mdoc_it_block_pre(MDOC_ARGS, int, int,
-				struct roffsu *, struct roffsu *);
-static	int		  mdoc_it_head_pre(MDOC_ARGS, int, 
+static	int		  mdoc_it_block_pre(MDOC_ARGS, enum mdoc_list,
+				int, struct roffsu *, struct roffsu *);
+static	int		  mdoc_it_head_pre(MDOC_ARGS, enum mdoc_list, 
 				struct roffsu *);
-static	int		  mdoc_it_body_pre(MDOC_ARGS, int);
+static	int		  mdoc_it_body_pre(MDOC_ARGS, enum mdoc_list,
+				struct roffsu *);
 static	int		  mdoc_it_pre(MDOC_ARGS);
 static	int		  mdoc_lb_pre(MDOC_ARGS);
 static	int		  mdoc_li_pre(MDOC_ARGS);
@@ -114,6 +125,7 @@ static	int		  mdoc_pq_pre(MDOC_ARGS);
 static	int		  mdoc_rs_pre(MDOC_ARGS);
 static	int		  mdoc_rv_pre(MDOC_ARGS);
 static	int		  mdoc_sh_pre(MDOC_ARGS);
+static	int		  mdoc_sm_pre(MDOC_ARGS);
 static	int		  mdoc_sp_pre(MDOC_ARGS);
 static	void		  mdoc_sq_post(MDOC_ARGS);
 static	int		  mdoc_sq_pre(MDOC_ARGS);
@@ -126,11 +138,6 @@ static	int		  mdoc_vt_pre(MDOC_ARGS);
 static	int		  mdoc_xr_pre(MDOC_ARGS);
 static	int		  mdoc_xx_pre(MDOC_ARGS);
 
-#ifdef __linux__
-extern	size_t	  	  strlcpy(char *, const char *, size_t);
-extern	size_t	  	  strlcat(char *, const char *, size_t);
-#endif
-
 static	const struct htmlmdoc mdocs[MDOC_MAX] = {
 	{mdoc_ap_pre, NULL}, /* Ap */
 	{NULL, NULL}, /* Dd */
@@ -198,12 +205,12 @@ static	const struct htmlmdoc mdocs[MDOC_MAX] = {
 	{NULL, NULL}, /* Dc */
 	{mdoc_dq_pre, mdoc_dq_post}, /* Do */
 	{mdoc_dq_pre, mdoc_dq_post}, /* Dq */
-	{NULL, NULL}, /* Ec */
+	{NULL, NULL}, /* Ec */ /* FIXME: no space */
 	{NULL, NULL}, /* Ef */
 	{mdoc_em_pre, NULL}, /* Em */ 
 	{NULL, NULL}, /* Eo */
 	{mdoc_xx_pre, NULL}, /* Fx */
-	{mdoc_ms_pre, NULL}, /* Ms */ /* FIXME: convert to symbol? */
+	{mdoc_ms_pre, NULL}, /* Ms */
 	{NULL, NULL}, /* No */
 	{mdoc_ns_pre, NULL}, /* Ns */
 	{mdoc_xx_pre, NULL}, /* Nx */
@@ -221,7 +228,7 @@ static	const struct htmlmdoc mdocs[MDOC_MAX] = {
 	{NULL, NULL}, /* Sc */
 	{mdoc_sq_pre, mdoc_sq_post}, /* So */
 	{mdoc_sq_pre, mdoc_sq_post}, /* Sq */
-	{NULL, NULL}, /* Sm */ /* FIXME - no idea. */
+	{mdoc_sm_pre, NULL}, /* Sm */ 
 	{mdoc_sx_pre, NULL}, /* Sx */
 	{mdoc_sy_pre, NULL}, /* Sy */
 	{NULL, NULL}, /* Tn */
@@ -232,7 +239,7 @@ static	const struct htmlmdoc mdocs[MDOC_MAX] = {
 	{NULL, NULL}, /* Fc */ 
 	{mdoc_op_pre, mdoc_op_post}, /* Oo */
 	{NULL, NULL}, /* Oc */
-	{NULL, NULL}, /* Bk */
+	{mdoc_bk_pre, mdoc_bk_post}, /* Bk */
 	{NULL, NULL}, /* Ek */
 	{mdoc_bt_pre, NULL}, /* Bt */
 	{NULL, NULL}, /* Hf */
@@ -253,6 +260,7 @@ static	const struct htmlmdoc mdocs[MDOC_MAX] = {
 	{mdoc_sp_pre, NULL}, /* br */
 	{mdoc_sp_pre, NULL}, /* sp */ 
 	{mdoc__x_pre, mdoc__x_post}, /* %U */ 
+	{NULL, NULL}, /* Ta */ 
 };
 
 
@@ -264,7 +272,7 @@ html_mdoc(void *arg, const struct mdoc *m)
 
 	h = (struct html *)arg;
 
-	print_gen_doctype(h);
+	print_gen_decls(h);
 	t = print_otag(h, TAG_HTML, 0, NULL);
 	print_mdoc(mdoc_meta(m), mdoc_node(m), h);
 	print_tagq(h, t);
@@ -274,50 +282,6 @@ html_mdoc(void *arg, const struct mdoc *m)
 
 
 /*
- * Return the list type for `Bl', e.g., `Bl -column' returns 
- * MDOC_Column.  This can ONLY be run for lists; it will abort() if no
- * list type is found. 
- */
-static int
-a2list(const struct mdoc_node *n)
-{
-	int		 i;
-
-	assert(n->args);
-	for (i = 0; i < (int)n->args->argc; i++) 
-		switch (n->args->argv[i].arg) {
-		case (MDOC_Enum):
-			/* FALLTHROUGH */
-		case (MDOC_Dash):
-			/* FALLTHROUGH */
-		case (MDOC_Hyphen):
-			/* FALLTHROUGH */
-		case (MDOC_Bullet):
-			/* FALLTHROUGH */
-		case (MDOC_Tag):
-			/* FALLTHROUGH */
-		case (MDOC_Hang):
-			/* FALLTHROUGH */
-		case (MDOC_Inset):
-			/* FALLTHROUGH */
-		case (MDOC_Diag):
-			/* FALLTHROUGH */
-		case (MDOC_Item):
-			/* FALLTHROUGH */
-		case (MDOC_Column):
-			/* FALLTHROUGH */
-		case (MDOC_Ohang):
-			return(n->args->argv[i].arg);
-		default:
-			break;
-		}
-
-	abort();
-	/* NOTREACHED */
-}
-
-
-/*
  * Calculate the scaling unit passed in a `-width' argument.  This uses
  * either a native scaling unit (e.g., 1i, 2m) or the string length of
  * the value.
@@ -334,6 +298,55 @@ a2width(const char *p, struct roffsu *su)
 
 
 /*
+ * See the same function in mdoc_term.c for documentation.
+ */
+static void
+synopsis_pre(struct html *h, const struct mdoc_node *n)
+{
+	struct roffsu	 su;
+	struct htmlpair	 tag;
+
+	if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
+		return;
+
+	SCALE_VS_INIT(&su, 1);
+	bufcat_su(h, "margin-top", &su);
+	PAIR_STYLE_INIT(&tag, h);
+
+	if (n->prev->tok == n->tok && 
+			MDOC_Fo != n->tok && 
+			MDOC_Ft != n->tok && 
+			MDOC_Fn != n->tok) {
+		print_otag(h, TAG_DIV, 0, NULL);
+		return;
+	}
+
+	switch (n->prev->tok) {
+	case (MDOC_Fd):
+		/* FALLTHROUGH */
+	case (MDOC_Fn):
+		/* FALLTHROUGH */
+	case (MDOC_Fo):
+		/* FALLTHROUGH */
+	case (MDOC_In):
+		/* FALLTHROUGH */
+	case (MDOC_Vt):
+		print_otag(h, TAG_DIV, 1, &tag);
+		break;
+	case (MDOC_Ft):
+		if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
+			print_otag(h, TAG_DIV, 1, &tag);
+			break;
+		}
+		/* FALLTHROUGH */
+	default:
+		print_otag(h, TAG_DIV, 0, NULL);
+		break;
+	}
+}
+
+
+/*
  * Calculate the scaling unit passed in an `-offset' argument.  This
  * uses either a native scaling unit (e.g., 1i, 2m), one of a set of
  * predefined strings (indent, etc.), or the string length of the value.
@@ -385,7 +398,7 @@ print_mdoc_head(MDOC_ARGS)
 
 	print_gen_head(h);
 	bufinit(h);
-	buffmt(h, "%s(%d)", m->title, m->msec);
+	buffmt(h, "%s(%s)", m->title, m->msec);
 
 	if (m->arch) {
 		bufcat(h, " (");
@@ -424,13 +437,25 @@ print_mdoc_node(MDOC_ARGS)
 		break;
 	case (MDOC_TEXT):
 		print_text(h, n->string);
-		break;
+		return;
 	default:
-		if (mdocs[n->tok].pre)
+		if (mdocs[n->tok].pre && ENDBODY_NOT == n->end)
 			child = (*mdocs[n->tok].pre)(m, n, h);
 		break;
 	}
 
+	if (HTML_KEEP & h->flags) {
+		if (n->prev && n->prev->line != n->line) {
+			h->flags &= ~HTML_KEEP;
+			h->flags |= HTML_PREKEEP;
+		} else if (NULL == n->prev) {
+			if (n->parent && n->parent->line != n->line) {
+				h->flags &= ~HTML_KEEP;
+				h->flags |= HTML_PREKEEP;
+			}
+		}
+	}
+
 	if (child && n->child)
 		print_mdoc_nodelist(m, n->child, h);
 
@@ -441,10 +466,8 @@ print_mdoc_node(MDOC_ARGS)
 	case (MDOC_ROOT):
 		mdoc_root_post(m, n, h);
 		break;
-	case (MDOC_TEXT):
-		break;
 	default:
-		if (mdocs[n->tok].post)
+		if (mdocs[n->tok].post && ENDBODY_NOT == n->end)
 			(*mdocs[n->tok].post)(m, n, h);
 		break;
 	}
@@ -509,7 +532,7 @@ mdoc_root_pre(MDOC_ARGS)
 	}
 
 	(void)snprintf(title, BUFSIZ - 1, 
-			"%s(%d)", m->title, m->msec);
+			"%s(%s)", m->title, m->msec);
 
 	/* XXX: see note in mdoc_root_post() about divs. */
 
@@ -589,14 +612,9 @@ mdoc_sh_pre(MDOC_ARGS)
 			html_idcat(buf, " ", BUFSIZ);
 	}
 
-	/* 
-	 * TODO: make sure there are no duplicates, as HTML does not
-	 * allow for multiple `id' tags of the same name.
-	 */
-
 	PAIR_CLASS_INIT(&tag[0], "sec-head");
-	tag[1].key = ATTR_ID;
-	tag[1].val = buf;
+	PAIR_ID_INIT(&tag[1], buf);
+
 	print_otag(h, TAG_DIV, 2, tag);
 	return(1);
 }
@@ -648,8 +666,8 @@ mdoc_ss_pre(MDOC_ARGS)
 
 	PAIR_CLASS_INIT(&tag[0], "ssec-head");
 	PAIR_STYLE_INIT(&tag[1], h);
-	tag[2].key = ATTR_ID;
-	tag[2].val = buf;
+	PAIR_ID_INIT(&tag[2], buf);
+
 	print_otag(h, TAG_DIV, 3, tag);
 	return(1);
 }
@@ -663,10 +681,19 @@ mdoc_fl_pre(MDOC_ARGS)
 
 	PAIR_CLASS_INIT(&tag, "flag");
 	print_otag(h, TAG_SPAN, 1, &tag);
-	if (MDOC_Fl == n->tok) {
-		print_text(h, "\\-");
+
+	/* `Cm' has no leading hyphen. */
+
+	if (MDOC_Cm == n->tok)
+		return(1);
+
+	print_text(h, "\\-");
+
+	if (n->child)
 		h->flags |= HTML_NOSPACE;
-	}
+	else if (n->next && n->next->line == n->line)
+		h->flags |= HTML_NOSPACE;
+
 	return(1);
 }
 
@@ -723,20 +750,70 @@ mdoc_op_post(MDOC_ARGS)
 static int
 mdoc_nm_pre(MDOC_ARGS)
 {
-	struct htmlpair	tag;
+	struct htmlpair	 tag;
+	struct roffsu	 su;
+	const char	*cp;
 
-	if ( ! (HTML_NEWLINE & h->flags))
-		if (SEC_SYNOPSIS == n->sec) {
-			bufcat_style(h, "clear", "both");
-			PAIR_STYLE_INIT(&tag, h);
-			print_otag(h, TAG_BR, 1, &tag);
+	/*
+	 * Accomodate for `Nm' being both an element (which may have
+	 * NULL children AND no m->name) and a block.
+	 */
+
+	cp = NULL;
+
+	if (MDOC_ELEM == n->type) {
+		if (NULL == n->child && NULL == m->name)
+			return(1);
+		synopsis_pre(h, n);
+		PAIR_CLASS_INIT(&tag, "name");
+		print_otag(h, TAG_SPAN, 1, &tag);
+		if (NULL == n->child)
+			print_text(h, m->name);
+	} else if (MDOC_BLOCK == n->type) {
+		synopsis_pre(h, n);
+
+		bufcat_style(h, "clear", "both");
+		if (n->head->child || m->name) {
+			if (n->head->child && MDOC_TEXT == 
+					n->head->child->type)
+				cp = n->head->child->string;
+			if (NULL == cp || '\0' == *cp)
+				cp = m->name;
+
+			SCALE_HS_INIT(&su, (double)strlen(cp));
+			bufcat_su(h, "padding-left", &su);
 		}
 
-	PAIR_CLASS_INIT(&tag, "name");
-	print_otag(h, TAG_SPAN, 1, &tag);
-	if (NULL == n->child)
-		print_text(h, m->name);
+		PAIR_STYLE_INIT(&tag, h);
+		print_otag(h, TAG_DIV, 1, &tag);
+	} else if (MDOC_HEAD == n->type) { 
+		if (NULL == n->child && NULL == m->name)
+			return(1);
 
+		if (n->child && MDOC_TEXT == n->child->type)
+			cp = n->child->string;
+		if (NULL == cp || '\0' == *cp)
+			cp = m->name;
+
+		SCALE_HS_INIT(&su, (double)strlen(cp));
+
+		bufcat_style(h, "float", "left");
+		bufcat_su(h, "min-width", &su);
+		SCALE_INVERT(&su);
+		bufcat_su(h, "margin-left", &su);
+
+		PAIR_STYLE_INIT(&tag, h);
+		print_otag(h, TAG_DIV, 1, &tag);
+
+		if (NULL == n->child)
+			print_text(h, m->name);
+	} else if (MDOC_BODY == n->type) {
+		SCALE_HS_INIT(&su, 2);
+		bufcat_su(h, "margin-left", &su);
+		PAIR_STYLE_INIT(&tag, h);
+		print_otag(h, TAG_DIV, 1, &tag);
+	}
+
 	return(1);
 }
 
@@ -748,14 +825,16 @@ mdoc_xr_pre(MDOC_ARGS)
 	struct htmlpair	 	 tag[2];
 	const struct mdoc_node	*nn;
 
+	if (NULL == n->child)
+		return(0);
+
 	PAIR_CLASS_INIT(&tag[0], "link-man");
 
 	if (h->base_man) {
 		buffmt_man(h, n->child->string, 
 				n->child->next ? 
 				n->child->next->string : NULL);
-		tag[1].key = ATTR_HREF;
-		tag[1].val = h->buf;
+		PAIR_HREF_INIT(&tag[1], h->buf);
 		print_otag(h, TAG_A, 2, tag);
 	} else
 		print_otag(h, TAG_A, 1, tag);
@@ -810,7 +889,7 @@ mdoc_xx_pre(MDOC_ARGS)
 		pp = "BSDI BSD/OS";
 		break;
 	case (MDOC_Dx):
-		pp = "DragonFlyBSD";
+		pp = "DragonFly";
 		break;
 	case (MDOC_Fx):
 		pp = "FreeBSD";
@@ -858,7 +937,7 @@ mdoc_bx_pre(MDOC_ARGS)
 
 /* ARGSUSED */
 static int
-mdoc_it_block_pre(MDOC_ARGS, int type, int comp,
+mdoc_it_block_pre(MDOC_ARGS, enum mdoc_list type, int comp,
 		struct roffsu *offs, struct roffsu *width)
 {
 	struct htmlpair	 	 tag;
@@ -866,17 +945,16 @@ mdoc_it_block_pre(MDOC_ARGS, int type, int comp,
 	struct roffsu		 su;
 
 	nn = n->parent->parent;
-	assert(nn->args);
 
 	/* XXX: see notes in mdoc_it_pre(). */
 
-	if (MDOC_Column == type) {
+	if (LIST_column == type) {
 		/* Don't width-pad on the left. */
 		SCALE_HS_INIT(width, 0);
 		/* Also disallow non-compact. */
 		comp = 1;
 	}
-	if (MDOC_Diag == type)
+	if (LIST_diag == type)
 		/* Mandate non-compact with empty prior. */
 		if (n->prev && NULL == n->prev->body->child)
 			comp = 1;
@@ -913,17 +991,23 @@ mdoc_it_block_pre(MDOC_ARGS, int type, int comp,
 
 /* ARGSUSED */
 static int
-mdoc_it_body_pre(MDOC_ARGS, int type)
+mdoc_it_body_pre(MDOC_ARGS, enum mdoc_list type, struct roffsu *width)
 {
 	struct htmlpair	 tag;
 	struct roffsu	 su;
 
 	switch (type) {
-	case (MDOC_Item):
+	case (LIST_item):
 		/* FALLTHROUGH */
-	case (MDOC_Ohang):
+	case (LIST_ohang):
 		/* FALLTHROUGH */
-	case (MDOC_Column):
+	case (LIST_column):
+		bufcat_su(h, "min-width", width);
+		bufcat_style(h, "clear", "none");
+		if (n->next)
+			bufcat_style(h, "float", "left");
+		PAIR_STYLE_INIT(&tag, h);
+		print_otag(h, TAG_DIV, 1, &tag);
 		break;
 	default:
 		/* 
@@ -943,24 +1027,19 @@ mdoc_it_body_pre(MDOC_ARGS, int type)
 
 /* ARGSUSED */
 static int
-mdoc_it_head_pre(MDOC_ARGS, int type, struct roffsu *width)
+mdoc_it_head_pre(MDOC_ARGS, enum mdoc_list type, struct roffsu *width)
 {
 	struct htmlpair	 tag;
 	struct ord	*ord;
 	char		 nbuf[BUFSIZ];
 
 	switch (type) {
-	case (MDOC_Item):
-		/* FALLTHROUGH */
-	case (MDOC_Ohang):
+	case (LIST_item):
 		return(0);
-	case (MDOC_Column):
-		bufcat_su(h, "min-width", width);
-		bufcat_style(h, "clear", "none");
-		if (n->next && MDOC_HEAD == n->next->type)
-			bufcat_style(h, "float", "left");
-		PAIR_STYLE_INIT(&tag, h);
-		print_otag(h, TAG_DIV, 1, &tag);
+	case (LIST_ohang):
+		print_otag(h, TAG_DIV, 0, &tag);
+		return(1);
+	case (LIST_column):
 		break;
 	default:
 		bufcat_su(h, "min-width", width);
@@ -978,24 +1057,24 @@ mdoc_it_head_pre(MDOC_ARGS, int type, struct roffsu *w
 	}
 
 	switch (type) {
-	case (MDOC_Diag):
+	case (LIST_diag):
 		PAIR_CLASS_INIT(&tag, "diag");
 		print_otag(h, TAG_SPAN, 1, &tag);
 		break;
-	case (MDOC_Enum):
+	case (LIST_enum):
 		ord = h->ords.head;
 		assert(ord);
 		nbuf[BUFSIZ - 1] = 0;
 		(void)snprintf(nbuf, BUFSIZ - 1, "%d.", ord->pos++);
 		print_text(h, nbuf);
 		return(0);
-	case (MDOC_Dash):
+	case (LIST_dash):
 		print_text(h, "\\(en");
 		return(0);
-	case (MDOC_Hyphen):
+	case (LIST_hyphen):
 		print_text(h, "\\(hy");
 		return(0);
-	case (MDOC_Bullet):
+	case (LIST_bullet):
 		print_text(h, "\\(bu");
 		return(0);
 	default:
@@ -1009,9 +1088,10 @@ mdoc_it_head_pre(MDOC_ARGS, int type, struct roffsu *w
 static int
 mdoc_it_pre(MDOC_ARGS)
 {
-	int			 i, type, wp, comp;
+	int			 i, comp;
 	const struct mdoc_node	*bl, *nn;
 	struct roffsu		 width, offs;
+	enum mdoc_list		 type;
 
 	/* 
 	 * XXX: be very careful in changing anything, here.  Lists in
@@ -1023,20 +1103,23 @@ mdoc_it_pre(MDOC_ARGS)
 	if (MDOC_BLOCK != n->type)
 		bl = bl->parent;
 
-	type = a2list(bl);
+	SCALE_HS_INIT(&offs, 0);
 
-	/* Set default width and offset. */
+	assert(bl->data.Bl);
+	type = bl->data.Bl->type;
+	comp = bl->data.Bl->comp;
 
-	SCALE_HS_INIT(&offs, 0);
+	if (bl->data.Bl->offs)
+		a2offs(bl->data.Bl->offs, &offs);
 
 	switch (type) {
-	case (MDOC_Enum):
+	case (LIST_enum):
 		/* FALLTHROUGH */
-	case (MDOC_Dash):
+	case (LIST_dash):
 		/* FALLTHROUGH */
-	case (MDOC_Hyphen):
+	case (LIST_hyphen):
 		/* FALLTHROUGH */
-	case (MDOC_Bullet):
+	case (LIST_bullet):
 		SCALE_HS_INIT(&width, 2);
 		break;
 	default:
@@ -1044,34 +1127,19 @@ mdoc_it_pre(MDOC_ARGS)
 		break;
 	}
 
-	/* Get width, offset, and compact arguments. */
+	if (bl->data.Bl->width)
+		a2width(bl->data.Bl->width, &width);
 
-	for (wp = -1, comp = i = 0; i < (int)bl->args->argc; i++) 
-		switch (bl->args->argv[i].arg) {
-		case (MDOC_Column):
-			wp = i; /* Save for later. */
-			break;
-		case (MDOC_Width):
-			a2width(bl->args->argv[i].value[0], &width);
-			break;
-		case (MDOC_Offset):
-			a2offs(bl->args->argv[i].value[0], &offs);
-			break;
-		case (MDOC_Compact):
-			comp = 1;
-			break;
-		default:
-			break;
-		}
-
 	/* Override width in some cases. */
 
 	switch (type) {
-	case (MDOC_Item):
+	case (LIST_ohang):
 		/* FALLTHROUGH */
-	case (MDOC_Inset):
+	case (LIST_item):
 		/* FALLTHROUGH */
-	case (MDOC_Diag):
+	case (LIST_inset):
+		/* FALLTHROUGH */
+	case (LIST_diag):
 		SCALE_HS_INIT(&width, 0);
 		break;
 	default:
@@ -1080,25 +1148,21 @@ mdoc_it_pre(MDOC_ARGS)
 		break;
 	}
 
-	/* Flip to body/block processing. */
-
-	if (MDOC_BODY == n->type)
-		return(mdoc_it_body_pre(m, n, h, type));
-	if (MDOC_BLOCK == n->type)
-		return(mdoc_it_block_pre(m, n, h, type, comp,
-					&offs, &width));
-
-	/* Override column widths. */
-
-	if (MDOC_Column == type) {
+	if (LIST_column == type && MDOC_BODY == n->type) {
 		nn = n->parent->child;
-		for (i = 0; nn && nn != n; nn = nn->next, i++)
-			/* Counter... */ ;
-		if (i < (int)bl->args->argv[wp].sz)
-			a2width(bl->args->argv[wp].value[i], &width);
+		for (i = 0; nn && nn != n; nn = nn->next)
+			if (MDOC_BODY == nn->type)
+				i++;
+		if (i < (int)bl->data.Bl->ncols)
+			a2width(bl->data.Bl->cols[i], &width);
 	}
 
-	return(mdoc_it_head_pre(m, n, h, type, &width));
+	if (MDOC_HEAD == n->type)
+		return(mdoc_it_head_pre(m, n, h, type, &width));
+	else if (MDOC_BODY == n->type)
+		return(mdoc_it_body_pre(m, n, h, type, &width));
+
+	return(mdoc_it_block_pre(m, n, h, type, comp, &offs, &width));
 }
 
 
@@ -1108,14 +1172,17 @@ mdoc_bl_pre(MDOC_ARGS)
 {
 	struct ord	*ord;
 
+	if (MDOC_HEAD == n->type)
+		return(0);
 	if (MDOC_BLOCK != n->type)
 		return(1);
-	if (MDOC_Enum != a2list(n))
+	assert(n->data.Bl);
+	if (LIST_enum != n->data.Bl->type)
 		return(1);
 
 	ord = malloc(sizeof(struct ord));
 	if (NULL == ord) {
-		fprintf(stderr, "memory exhausted\n");
+		perror(NULL);
 		exit(EXIT_FAILURE);
 	}
 	ord->cookie = n;
@@ -1134,7 +1201,7 @@ mdoc_bl_post(MDOC_ARGS)
 
 	if (MDOC_BLOCK != n->type)
 		return;
-	if (MDOC_Enum != a2list(n))
+	if (LIST_enum != n->data.Bl->type)
 		return;
 
 	ord = h->ords.head;
@@ -1170,7 +1237,7 @@ mdoc_ex_pre(MDOC_ARGS)
 			h->flags &= ~HTML_NOSPACE;
 	}
 
-	if (n->child->next)
+	if (n->child && n->child->next)
 		print_text(h, "utilities exit");
 	else
 		print_text(h, "utility exits");
@@ -1295,8 +1362,6 @@ mdoc_sx_pre(MDOC_ARGS)
 	const struct mdoc_node	*nn;
 	char			 buf[BUFSIZ];
 
-	/* FIXME: duplicates? */
-
 	strlcpy(buf, "#", BUFSIZ);
 	for (nn = n->child; nn; nn = nn->next) {
 		html_idcat(buf, nn->string, BUFSIZ);
@@ -1305,8 +1370,7 @@ mdoc_sx_pre(MDOC_ARGS)
 	}
 
 	PAIR_CLASS_INIT(&tag[0], "link-sec");
-	tag[1].key = ATTR_HREF;
-	tag[1].val = buf;
+	PAIR_HREF_INIT(&tag[1], buf);
 
 	print_otag(h, TAG_A, 2, tag);
 	return(1);
@@ -1343,44 +1407,23 @@ static int
 mdoc_bd_pre(MDOC_ARGS)
 {
 	struct htmlpair	 	 tag[2];
-	int		 	 type, comp, i;
-	const struct mdoc_node	*bl, *nn;
+	int		 	 comp;
+	const struct mdoc_node	*nn;
 	struct roffsu		 su;
 
-	if (MDOC_BLOCK == n->type)
-		bl = n;
-	else if (MDOC_HEAD == n->type)
+	if (MDOC_HEAD == n->type)
 		return(0);
-	else
-		bl = n->parent;
 
 	SCALE_VS_INIT(&su, 0);
 
-	type = comp = 0;
-	for (i = 0; i < (int)bl->args->argc; i++) 
-		switch (bl->args->argv[i].arg) {
-		case (MDOC_Offset):
-			a2offs(bl->args->argv[i].value[0], &su);
-			break;
-		case (MDOC_Compact):
-			comp = 1;
-			break;
-		case (MDOC_Centred):
-			/* FALLTHROUGH */
-		case (MDOC_Ragged):
-			/* FALLTHROUGH */
-		case (MDOC_Filled):
-			/* FALLTHROUGH */
-		case (MDOC_Unfilled):
-			/* FALLTHROUGH */
-		case (MDOC_Literal):
-			type = bl->args->argv[i].arg;
-			break;
-		default:
-			break;
-		}
+	assert(n->data.Bd);
+	if (n->data.Bd->offs)
+		a2offs(n->data.Bd->offs, &su);
 
+	comp = n->data.Bd->comp;
+
 	/* FIXME: -centered, etc. formatting. */
+	/* FIXME: does not respect -offset ??? */
 
 	if (MDOC_BLOCK == n->type) {
 		bufcat_su(h, "margin-left", &su);
@@ -1393,7 +1436,8 @@ mdoc_bd_pre(MDOC_ARGS)
 				break;
 		}
 		if (comp) {
-			print_otag(h, TAG_DIV, 0, tag);
+			PAIR_STYLE_INIT(&tag[0], h);
+			print_otag(h, TAG_DIV, 1, tag);
 			return(1);
 		}
 		SCALE_VS_INIT(&su, 1);
@@ -1403,7 +1447,8 @@ mdoc_bd_pre(MDOC_ARGS)
 		return(1);
 	}
 
-	if (MDOC_Unfilled != type && MDOC_Literal != type)
+	if (DISP_unfilled != n->data.Bd->type && 
+			DISP_literal != n->data.Bd->type)
 		return(1);
 
 	PAIR_CLASS_INIT(&tag[0], "lit");
@@ -1412,14 +1457,11 @@ mdoc_bd_pre(MDOC_ARGS)
 	print_otag(h, TAG_DIV, 2, tag);
 
 	for (nn = n->child; nn; nn = nn->next) {
-		h->flags |= HTML_NOSPACE;
 		print_mdoc_node(m, nn, h);
-		if (NULL == nn->next)
+		if (nn->next && nn->next->line == nn->line)
 			continue;
-		if (nn->prev && nn->prev->line < nn->line)
-			print_text(h, "\n");
-		else if (NULL == nn->prev)
-			print_text(h, "\n");
+		print_text(h, "\n");
+		h->flags |= HTML_NOSPACE;
 	}
 
 	return(0);
@@ -1470,7 +1512,7 @@ mdoc_cd_pre(MDOC_ARGS)
 {
 	struct htmlpair	tag;
 
-	print_otag(h, TAG_DIV, 0, NULL);
+	synopsis_pre(h, n);
 	PAIR_CLASS_INIT(&tag, "config");
 	print_otag(h, TAG_SPAN, 1, &tag);
 	return(1);
@@ -1547,17 +1589,8 @@ static int
 mdoc_fd_pre(MDOC_ARGS)
 {
 	struct htmlpair	 tag;
-	struct roffsu	 su;
 
-	if (SEC_SYNOPSIS == n->sec) {
-		if (n->next && MDOC_Fd != n->next->tok) {
-			SCALE_VS_INIT(&su, 1);
-			bufcat_su(h, "margin-bottom", &su);
-			PAIR_STYLE_INIT(&tag, h);
-			print_otag(h, TAG_DIV, 1, &tag);
-		} else
-			print_otag(h, TAG_DIV, 0, NULL);
-	}
+	synopsis_pre(h, n);
 
 	PAIR_CLASS_INIT(&tag, "macro");
 	print_otag(h, TAG_SPAN, 1, &tag);
@@ -1570,17 +1603,14 @@ static int
 mdoc_vt_pre(MDOC_ARGS)
 {
 	struct htmlpair	 tag;
-	struct roffsu	 su;
 
-	if (SEC_SYNOPSIS == n->sec) {
-		if (n->next && MDOC_Vt != n->next->tok) {
-			SCALE_VS_INIT(&su, 1);
-			bufcat_su(h, "margin-bottom", &su);
-			PAIR_STYLE_INIT(&tag, h);
-			print_otag(h, TAG_DIV, 1, &tag);
-		} else
-			print_otag(h, TAG_DIV, 0, NULL);
-	}
+	if (MDOC_BLOCK == n->type) {
+		synopsis_pre(h, n);
+		return(1);
+	} else if (MDOC_ELEM == n->type) {
+		synopsis_pre(h, n);
+	} else if (MDOC_HEAD == n->type)
+		return(0);
 
 	PAIR_CLASS_INIT(&tag, "type");
 	print_otag(h, TAG_SPAN, 1, &tag);
@@ -1593,18 +1623,8 @@ static int
 mdoc_ft_pre(MDOC_ARGS)
 {
 	struct htmlpair	 tag;
-	struct roffsu	 su;
 
-	if (SEC_SYNOPSIS == n->sec) {
-		if (n->prev && MDOC_Fo == n->prev->tok) {
-			SCALE_VS_INIT(&su, 1);
-			bufcat_su(h, "margin-top", &su);
-			PAIR_STYLE_INIT(&tag, h);
-			print_otag(h, TAG_DIV, 1, &tag);
-		} else
-			print_otag(h, TAG_DIV, 0, NULL);
-	}
-
+	synopsis_pre(h, n);
 	PAIR_CLASS_INIT(&tag, "ftype");
 	print_otag(h, TAG_SPAN, 1, &tag);
 	return(1);
@@ -1621,20 +1641,8 @@ mdoc_fn_pre(MDOC_ARGS)
 	char			 nbuf[BUFSIZ];
 	const char		*sp, *ep;
 	int			 sz, i;
-	struct roffsu		 su;
 
-	if (SEC_SYNOPSIS == n->sec) {
-		SCALE_HS_INIT(&su, INDENT);
-		bufcat_su(h, "margin-left", &su);
-		su.scale = -su.scale;
-		bufcat_su(h, "text-indent", &su);
-		if (n->next) {
-			SCALE_VS_INIT(&su, 1);
-			bufcat_su(h, "margin-bottom", &su);
-		}
-		PAIR_STYLE_INIT(&tag[0], h);
-		print_otag(h, TAG_DIV, 1, tag);
-	}
+	synopsis_pre(h, n);
 
 	/* Split apart into type and name. */
 	assert(n->child->string);
@@ -1657,10 +1665,27 @@ mdoc_fn_pre(MDOC_ARGS)
 	}
 
 	PAIR_CLASS_INIT(&tag[0], "fname");
+
+	/*
+	 * FIXME: only refer to IDs that we know exist.
+	 */
+
+#if 0
+	if (MDOC_SYNPRETTY & n->flags) {
+		nbuf[0] = '\0';
+		html_idcat(nbuf, sp, BUFSIZ);
+		PAIR_ID_INIT(&tag[1], nbuf);
+	} else {
+		strlcpy(nbuf, "#", BUFSIZ);
+		html_idcat(nbuf, sp, BUFSIZ);
+		PAIR_HREF_INIT(&tag[1], nbuf);
+	}
+#endif
+
 	t = print_otag(h, TAG_SPAN, 1, tag);
 
 	if (sp) {
-		(void)strlcpy(nbuf, sp, BUFSIZ);
+		strlcpy(nbuf, sp, BUFSIZ);
 		print_text(h, nbuf);
 	}
 
@@ -1676,7 +1701,7 @@ mdoc_fn_pre(MDOC_ARGS)
 
 	for (nn = n->child->next; nn; nn = nn->next) {
 		i = 1;
-		if (SEC_SYNOPSIS == n->sec)
+		if (MDOC_SYNPRETTY & n->flags)
 			i = 2;
 		t = print_otag(h, TAG_SPAN, i, tag);
 		print_text(h, nn->string);
@@ -1686,7 +1711,7 @@ mdoc_fn_pre(MDOC_ARGS)
 	}
 
 	print_text(h, ")");
-	if (SEC_SYNOPSIS == n->sec)
+	if (MDOC_SYNPRETTY & n->flags)
 		print_text(h, ";");
 
 	return(0);
@@ -1695,6 +1720,23 @@ mdoc_fn_pre(MDOC_ARGS)
 
 /* ARGSUSED */
 static int
+mdoc_sm_pre(MDOC_ARGS)
+{
+
+	assert(n->child && MDOC_TEXT == n->child->type);
+	if (0 == strcmp("on", n->child->string)) {
+		/* FIXME: no p->col to check... */
+		h->flags &= ~HTML_NOSPACE;
+		h->flags &= ~HTML_NONOSPACE;
+	} else
+		h->flags |= HTML_NONOSPACE;
+
+	return(0);
+}
+
+
+/* ARGSUSED */
+static int
 mdoc_sp_pre(MDOC_ARGS)
 {
 	int		 len;
@@ -1710,6 +1752,11 @@ mdoc_sp_pre(MDOC_ARGS)
 		len = 0;
 		break;
 	default:
+		assert(n->parent);
+		if ((NULL == n->next || NULL == n->prev) &&
+				(MDOC_Ss == n->parent->tok ||
+				 MDOC_Sh == n->parent->tok))
+			return(0);
 		len = 1;
 		break;
 	}
@@ -1761,8 +1808,7 @@ mdoc_lk_pre(MDOC_ARGS)
 	nn = n->child;
 
 	PAIR_CLASS_INIT(&tag[0], "link-ext");
-	tag[1].key = ATTR_HREF;
-	tag[1].val = nn->string;
+	PAIR_HREF_INIT(&tag[1], nn->string);
 	print_otag(h, TAG_A, 2, tag);
 
 	if (NULL == nn->next) 
@@ -1789,7 +1835,7 @@ mdoc_mt_pre(MDOC_ARGS)
 		bufinit(h);
 		bufcat(h, "mailto:");
 		bufcat(h, nn->string);
-		PAIR_STYLE_INIT(&tag[1], h);
+		PAIR_HREF_INIT(&tag[1], h->buf);
 		t = print_otag(h, TAG_A, 2, tag);
 		print_text(h, nn->string);
 		print_tagq(h, t);
@@ -1803,19 +1849,29 @@ mdoc_mt_pre(MDOC_ARGS)
 static int
 mdoc_fo_pre(MDOC_ARGS)
 {
-	struct htmlpair	tag;
+	struct htmlpair	 tag;
+	struct tag	*t;
 
 	if (MDOC_BODY == n->type) {
 		h->flags |= HTML_NOSPACE;
 		print_text(h, "(");
 		h->flags |= HTML_NOSPACE;
 		return(1);
-	} else if (MDOC_BLOCK == n->type)
+	} else if (MDOC_BLOCK == n->type) {
+		synopsis_pre(h, n);
 		return(1);
+	}
 
+	/* XXX: we drop non-initial arguments as per groff. */
+
+	assert(n->child);
+	assert(n->child->string);
+
 	PAIR_CLASS_INIT(&tag, "fname");
-	print_otag(h, TAG_SPAN, 1, &tag);
-	return(1);
+	t = print_otag(h, TAG_SPAN, 1, &tag);
+	print_text(h, n->child->string);
+	print_tagq(h, t);
+	return(0);
 }
 
 
@@ -1823,6 +1879,7 @@ mdoc_fo_pre(MDOC_ARGS)
 static void
 mdoc_fo_post(MDOC_ARGS)
 {
+
 	if (MDOC_BODY != n->type)
 		return;
 	h->flags |= HTML_NOSPACE;
@@ -1840,39 +1897,26 @@ mdoc_in_pre(MDOC_ARGS)
 	struct tag		*t;
 	struct htmlpair		 tag[2];
 	int			 i;
-	struct roffsu		 su;
 
-	if (SEC_SYNOPSIS == n->sec) {
-		if (n->next && MDOC_In != n->next->tok) {
-			SCALE_VS_INIT(&su, 1);
-			bufcat_su(h, "margin-bottom", &su);
-			PAIR_STYLE_INIT(&tag[0], h);
-			print_otag(h, TAG_DIV, 1, tag);
-		} else
-			print_otag(h, TAG_DIV, 0, NULL);
-	}
+	synopsis_pre(h, n);
 
-	/* FIXME: there's a buffer bug in here somewhere. */
-
 	PAIR_CLASS_INIT(&tag[0], "includes");
 	print_otag(h, TAG_SPAN, 1, tag);
 
-	if (SEC_SYNOPSIS == n->sec)
+	if (MDOC_SYNPRETTY & n->flags && MDOC_LINE & n->flags)
 		print_text(h, "#include");
 
 	print_text(h, "<");
 	h->flags |= HTML_NOSPACE;
 
-	/* XXX -- see warning in termp_in_post(). */
-
 	for (nn = n->child; nn; nn = nn->next) {
 		PAIR_CLASS_INIT(&tag[0], "link-includes");
 		i = 1;
 		bufinit(h);
 		if (h->base_includes) {
 			buffmt_includes(h, nn->string);
-			tag[i].key = ATTR_HREF;
-			tag[i++].val = h->buf;
+			PAIR_HREF_INIT(&tag[i], h->buf);
+			i++;
 		}
 		t = print_otag(h, TAG_A, i, tag);
 		print_mdoc_node(m, nn, h);
@@ -1924,7 +1968,7 @@ mdoc_rv_pre(MDOC_ARGS)
 			print_text(h, "()");
 	}
 
-	if (n->child->next)
+	if (n->child && n->child->next)
 		print_text(h, "functions return");
 	else
 		print_text(h, "function returns");
@@ -1994,47 +2038,33 @@ mdoc_ap_pre(MDOC_ARGS)
 static int
 mdoc_bf_pre(MDOC_ARGS)
 {
-	int		 i;
 	struct htmlpair	 tag[2];
 	struct roffsu	 su;
 
 	if (MDOC_HEAD == n->type)
 		return(0);
-	else if (MDOC_BLOCK != n->type)
+	else if (MDOC_BODY != n->type)
 		return(1);
 
-	PAIR_CLASS_INIT(&tag[0], "lit");
+	assert(n->data.Bf);
 
-	if (n->head->child) {
-		if ( ! strcmp("Em", n->head->child->string))
-			PAIR_CLASS_INIT(&tag[0], "emph");
-		else if ( ! strcmp("Sy", n->head->child->string))
-			PAIR_CLASS_INIT(&tag[0], "symb");
-		else if ( ! strcmp("Li", n->head->child->string))
-			PAIR_CLASS_INIT(&tag[0], "lit");
-	} else {
-		assert(n->args);
-		for (i = 0; i < (int)n->args->argc; i++) 
-			switch (n->args->argv[i].arg) {
-			case (MDOC_Symbolic):
-				PAIR_CLASS_INIT(&tag[0], "symb");
-				break;
-			case (MDOC_Literal):
-				PAIR_CLASS_INIT(&tag[0], "lit");
-				break;
-			case (MDOC_Emphasis):
-				PAIR_CLASS_INIT(&tag[0], "emph");
-				break;
-			default:
-				break;
-			}
-	}
+	if (FONT_Em == n->data.Bf->font) 
+		PAIR_CLASS_INIT(&tag[0], "emph");
+	else if (FONT_Sy == n->data.Bf->font) 
+		PAIR_CLASS_INIT(&tag[0], "symb");
+	else if (FONT_Li == n->data.Bf->font) 
+		PAIR_CLASS_INIT(&tag[0], "lit");
+	else
+		PAIR_CLASS_INIT(&tag[0], "none");
 
-	/* FIXME: div's have spaces stripped--we want them. */
-
+	/* 
+	 * We want this to be inline-formatted, but needs to be div to
+	 * accept block children. 
+	 */
 	bufcat_style(h, "display", "inline");
 	SCALE_HS_INIT(&su, 1);
-	bufcat_su(h, "margin-right", &su);
+	/* Needs a left-margin for spacing. */
+	bufcat_su(h, "margin-left", &su);
 	PAIR_STYLE_INIT(&tag[1], h);
 	print_otag(h, TAG_DIV, 2, tag);
 	return(1);
@@ -2147,7 +2177,7 @@ mdoc_lb_pre(MDOC_ARGS)
 {
 	struct htmlpair	tag;
 
-	if (SEC_SYNOPSIS == n->sec)
+	if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
 		print_otag(h, TAG_DIV, 0, NULL);
 	PAIR_CLASS_INIT(&tag, "lib");
 	print_otag(h, TAG_SPAN, 1, &tag);
@@ -2197,8 +2227,6 @@ mdoc__x_pre(MDOC_ARGS)
 		break;
 	case(MDOC__T):
 		PAIR_CLASS_INIT(&tag[0], "ref-title");
-		print_text(h, "\\(lq");
-		h->flags |= HTML_NOSPACE;
 		break;
 	case(MDOC__U):
 		PAIR_CLASS_INIT(&tag[0], "link-ref");
@@ -2227,14 +2255,40 @@ static void
 mdoc__x_post(MDOC_ARGS)
 {
 
+	/* TODO: %U */
+
 	h->flags |= HTML_NOSPACE;
-	switch (n->tok) {
-	case (MDOC__T):
-		print_text(h, "\\(rq");
-		h->flags |= HTML_NOSPACE;
+	print_text(h, n->next ? "," : ".");
+}
+
+
+/* ARGSUSED */
+static int
+mdoc_bk_pre(MDOC_ARGS)
+{
+
+	switch (n->type) {
+	case (MDOC_BLOCK):
 		break;
-	default:
+	case (MDOC_HEAD):
+		return(0);
+	case (MDOC_BODY):
+		h->flags |= HTML_PREKEEP;
 		break;
+	default:
+		abort();
+		/* NOTREACHED */
 	}
-	print_text(h, n->next ? "," : ".");
+
+	return(1);
+}
+
+
+/* ARGSUSED */
+static void
+mdoc_bk_post(MDOC_ARGS)
+{
+
+	if (MDOC_BODY == n->type)
+		h->flags &= ~(HTML_KEEP | HTML_PREKEEP);
 }