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Removed need for superfluous `os' value in overstep calculation (thanks Ingo Schwarze).
[mandoc.git] / mdoc_html.c
diff --git a/mdoc_html.c b/mdoc_html.c
index 06fe17a50926ac6b34d60afc4bea16cc9ef13c28..5dbad7c2ee97805c42522b6f93209fe3b312b777 100644 (file)
--- a/mdoc_html.c
+++ b/mdoc_html.c
@@ -1,4 +1,4 @@
-/*     $Id: mdoc_html.c,v 1.10 2009/09/24 23:54:43 kristaps Exp $ */
+/*     $Id: mdoc_html.c,v 1.37 2009/10/24 05:52:13 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -26,8 +26,10 @@
 #include <string.h>
 #include <unistd.h>
 
 #include <string.h>
 #include <unistd.h>
 
+#include "out.h"
 #include "html.h"
 #include "mdoc.h"
 #include "html.h"
 #include "mdoc.h"
+#include "main.h"
 
 #define        INDENT           5
 #define        HALFINDENT       3
 
 #define        INDENT           5
 #define        HALFINDENT       3
@@ -35,9 +37,6 @@
 #define        MDOC_ARGS         const struct mdoc_meta *m, \
                          const struct mdoc_node *n, \
                          struct html *h
 #define        MDOC_ARGS         const struct mdoc_meta *m, \
                          const struct mdoc_node *n, \
                          struct html *h
-#define        MAN_ARGS          const struct man_meta *m, \
-                         const struct man_node *n, \
-                         struct html *h
 
 struct htmlmdoc {
        int             (*pre)(MDOC_ARGS);
 
 struct htmlmdoc {
        int             (*pre)(MDOC_ARGS);
@@ -49,16 +48,13 @@ static      void              print_mdoc_head(MDOC_ARGS);
 static void              print_mdoc_node(MDOC_ARGS);
 static void              print_mdoc_nodelist(MDOC_ARGS);
 
 static void              print_mdoc_node(MDOC_ARGS);
 static void              print_mdoc_nodelist(MDOC_ARGS);
 
-static int               a2width(const char *);
-static int               a2offs(const char *);
+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);
 static int               a2list(const struct mdoc_node *);
 
 static void              mdoc_root_post(MDOC_ARGS);
 static int               mdoc_root_pre(MDOC_ARGS);
-static int               mdoc_tbl_pre(MDOC_ARGS, int);
-static int               mdoc_tbl_block_pre(MDOC_ARGS, int, int, int, int);
-static int               mdoc_tbl_body_pre(MDOC_ARGS, int, int);
-static int               mdoc_tbl_head_pre(MDOC_ARGS, int, int);
 
 static void              mdoc__x_post(MDOC_ARGS);
 static int               mdoc__x_pre(MDOC_ARGS);
 
 static void              mdoc__x_post(MDOC_ARGS);
 static int               mdoc__x_pre(MDOC_ARGS);
@@ -96,6 +92,11 @@ 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_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, 
+                               struct roffsu *);
+static int               mdoc_it_body_pre(MDOC_ARGS, int);
 static int               mdoc_it_pre(MDOC_ARGS);
 static int               mdoc_lb_pre(MDOC_ARGS);
 static int               mdoc_li_pre(MDOC_ARGS);
 static int               mdoc_it_pre(MDOC_ARGS);
 static int               mdoc_lb_pre(MDOC_ARGS);
 static int               mdoc_li_pre(MDOC_ARGS);
@@ -253,13 +254,9 @@ static     const struct htmlmdoc mdocs[MDOC_MAX] = {
        {mdoc__x_pre, mdoc__x_post}, /* %Q */ 
        {mdoc_sp_pre, NULL}, /* br */
        {mdoc_sp_pre, NULL}, /* sp */ 
        {mdoc__x_pre, mdoc__x_post}, /* %Q */ 
        {mdoc_sp_pre, NULL}, /* br */
        {mdoc_sp_pre, NULL}, /* sp */ 
+       {mdoc__x_pre, mdoc__x_post}, /* %U */ 
 };
 
 };
 
-static char              buf[BUFSIZ]; /* XXX */
-
-#define        bufcat(x)         (void)strlcat(buf, (x), BUFSIZ) 
-#define        bufinit()         buf[0] = 0
-#define        buffmt(...)       (void)snprintf(buf, BUFSIZ - 1, __VA_ARGS__)
 
 void
 html_mdoc(void *arg, const struct mdoc *m)
 
 void
 html_mdoc(void *arg, const struct mdoc *m)
@@ -278,14 +275,17 @@ 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;
 
 static int
 a2list(const struct mdoc_node *n)
 {
        int              i;
 
-       assert(MDOC_BLOCK == n->type && MDOC_Bl == n->tok);
        assert(n->args);
        assert(n->args);
-
        for (i = 0; i < (int)n->args->argc; i++) 
                switch (n->args->argv[i].arg) {
                case (MDOC_Enum):
        for (i = 0; i < (int)n->args->argc; i++) 
                switch (n->args->argv[i].arg) {
                case (MDOC_Enum):
@@ -319,49 +319,43 @@ a2list(const struct mdoc_node *n)
 }
 
 
 }
 
 
-static int
-a2width(const char *p)
+/*
+ * 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.
+ */
+static void
+a2width(const char *p, struct roffsu *su)
 {
 {
-       int              i, len;
 
 
-       if (0 == (len = (int)strlen(p)))
-               return(0);
-       for (i = 0; i < len - 1; i++) 
-               if ( ! isdigit((u_char)p[i]))
-                       break;
-
-       if (i == len - 1) 
-               if ('n' == p[len - 1] || 'm' == p[len - 1])
-                       return(atoi(p) + 2);
-
-       return(len + 2);
+       if ( ! a2roffsu(p, su, SCALE_MAX)) {
+               su->unit = SCALE_EM;
+               su->scale = (int)strlen(p);
+       }
 }
 
 
 }
 
 
-static int
-a2offs(const char *p)
+/*
+ * 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.
+ */
+static void
+a2offs(const char *p, struct roffsu *su)
 {
 {
-       int              len, i;
 
 
-       if (0 == strcmp(p, "left"))
-               return(0);
-       if (0 == strcmp(p, "indent"))
-               return(INDENT + 1);
-       if (0 == strcmp(p, "indent-two"))
-               return((INDENT + 1) * 2);
+       /* FIXME: "right"? */
 
 
-       if (0 == (len = (int)strlen(p)))
-               return(0);
-
-       for (i = 0; i < len - 1; i++) 
-               if ( ! isdigit((u_char)p[i]))
-                       break;
-
-       if (i == len - 1) 
-               if ('n' == p[len - 1] || 'm' == p[len - 1])
-                       return(atoi(p));
-
-       return(len);
+       if (0 == strcmp(p, "left"))
+               SCALE_HS_INIT(su, 0);
+       else if (0 == strcmp(p, "indent"))
+               SCALE_HS_INIT(su, INDENT);
+       else if (0 == strcmp(p, "indent-two"))
+               SCALE_HS_INIT(su, INDENT * 2);
+       else if ( ! a2roffsu(p, su, SCALE_MAX)) {
+               su->unit = SCALE_EM;
+               su->scale = (int)strlen(p);
+       }
 }
 
 
 }
 
 
@@ -390,21 +384,19 @@ print_mdoc(MDOC_ARGS)
 static void
 print_mdoc_head(MDOC_ARGS)
 {
 static void
 print_mdoc_head(MDOC_ARGS)
 {
-       char            b[BUFSIZ];
 
        print_gen_head(h);
 
        print_gen_head(h);
-
-       (void)snprintf(b, BUFSIZ - 1, 
-                       "%s(%d)", m->title, m->msec);
+       bufinit(h);
+       buffmt(h, "%s(%d)", m->title, m->msec);
 
        if (m->arch) {
 
        if (m->arch) {
-               (void)strlcat(b, " (", BUFSIZ);
-               (void)strlcat(b, m->arch, BUFSIZ);
-               (void)strlcat(b, ")", BUFSIZ);
+               bufcat(h, " (");
+               bufcat(h, m->arch);
+               bufcat(h, ")");
        }
 
        print_otag(h, TAG_TITLE, 0, NULL);
        }
 
        print_otag(h, TAG_TITLE, 0, NULL);
-       print_text(h, b);
+       print_text(h, h->buf);
 }
 
 
 }
 
 
@@ -427,8 +419,7 @@ print_mdoc_node(MDOC_ARGS)
        child = 1;
        t = SLIST_FIRST(&h->tags);
 
        child = 1;
        t = SLIST_FIRST(&h->tags);
 
-       bufinit();
-
+       bufinit(h);
        switch (n->type) {
        case (MDOC_ROOT):
                child = mdoc_root_pre(m, n, h);
        switch (n->type) {
        case (MDOC_ROOT):
                child = mdoc_root_pre(m, n, h);
@@ -447,8 +438,7 @@ print_mdoc_node(MDOC_ARGS)
 
        print_stagq(h, t);
 
 
        print_stagq(h, t);
 
-       bufinit();
-
+       bufinit(h);
        switch (n->type) {
        case (MDOC_ROOT):
                mdoc_root_post(m, n, h);
        switch (n->type) {
        case (MDOC_ROOT):
                mdoc_root_post(m, n, h);
@@ -467,31 +457,35 @@ print_mdoc_node(MDOC_ARGS)
 static void
 mdoc_root_post(MDOC_ARGS)
 {
 static void
 mdoc_root_post(MDOC_ARGS)
 {
-       struct tm        tm;
        struct htmlpair  tag[2];
        struct tag      *t, *tt;
        struct htmlpair  tag[2];
        struct tag      *t, *tt;
-       char             b[BUFSIZ];
+       char             b[DATESIZ];
 
 
-       (void)localtime_r(&m->date, &tm);
+       time2a(m->date, b, DATESIZ);
 
 
-       if (0 == strftime(b, BUFSIZ - 1, "%B %e, %Y", &tm))
-               err(EXIT_FAILURE, "strftime");
+       /*
+        * XXX: this should use divs, but in Firefox, divs with nested
+        * divs for some reason puke when trying to put a border line
+        * below.  So I use tables, instead.
+        */
 
 
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = "footer";
-       tag[1].key = ATTR_STYLE;
-       tag[1].val = "width: 100%;";
+       PAIR_CLASS_INIT(&tag[0], "footer");
+       bufcat_style(h, "width", "100%");
+       PAIR_STYLE_INIT(&tag[1], h);
        t = print_otag(h, TAG_TABLE, 2, tag);
        tt = print_otag(h, TAG_TR, 0, NULL);
 
        t = print_otag(h, TAG_TABLE, 2, tag);
        tt = print_otag(h, TAG_TR, 0, NULL);
 
-       tag[0].key = ATTR_STYLE;
-       tag[0].val = "width: 50%;";
+       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_stagq(h, tt);
 
        print_otag(h, TAG_TD, 1, tag);
        print_text(h, b);
        print_stagq(h, tt);
 
-       tag[0].key = ATTR_STYLE;
-       tag[0].val = "width: 50%; text-align: right;";
+       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);
        print_text(h, m->os);
        print_tagq(h, t);
        print_otag(h, TAG_TD, 1, tag);
        print_text(h, m->os);
        print_tagq(h, t);
@@ -517,31 +511,37 @@ mdoc_root_pre(MDOC_ARGS)
        (void)snprintf(title, BUFSIZ - 1, 
                        "%s(%d)", m->title, m->msec);
 
        (void)snprintf(title, BUFSIZ - 1, 
                        "%s(%d)", m->title, m->msec);
 
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = "header";
-       tag[1].key = ATTR_STYLE;
-       tag[1].val = "width: 100%;";
+       /* XXX: see note in mdoc_root_post() about divs. */
+
+       PAIR_CLASS_INIT(&tag[0], "header");
+       bufcat_style(h, "width", "100%");
+       PAIR_STYLE_INIT(&tag[1], h);
        t = print_otag(h, TAG_TABLE, 2, tag);
        tt = print_otag(h, TAG_TR, 0, NULL);
 
        t = print_otag(h, TAG_TABLE, 2, tag);
        tt = print_otag(h, TAG_TR, 0, NULL);
 
-       tag[0].key = ATTR_STYLE;
-       tag[0].val = "width: 33%;";
+       bufinit(h);
+       bufcat_style(h, "width", "10%");
+       PAIR_STYLE_INIT(&tag[0], h);
        print_otag(h, TAG_TD, 1, tag);
        print_text(h, title);
        print_stagq(h, tt);
 
        print_otag(h, TAG_TD, 1, tag);
        print_text(h, title);
        print_stagq(h, tt);
 
-       tag[0].key = ATTR_STYLE;
-       tag[0].val = "width: 33%; text-align: center;";
+       bufinit(h);
+       bufcat_style(h, "text-align", "center");
+       bufcat_style(h, "white-space", "nowrap");
+       bufcat_style(h, "width", "80%");
+       PAIR_STYLE_INIT(&tag[0], h);
        print_otag(h, TAG_TD, 1, tag);
        print_text(h, b);
        print_stagq(h, tt);
 
        print_otag(h, TAG_TD, 1, tag);
        print_text(h, b);
        print_stagq(h, tt);
 
-       tag[0].key = ATTR_STYLE;
-       tag[0].val = "width: 33%; text-align: right;";
+       bufinit(h);
+       bufcat_style(h, "text-align", "right");
+       bufcat_style(h, "width", "10%");
+       PAIR_STYLE_INIT(&tag[0], h);
        print_otag(h, TAG_TD, 1, tag);
        print_text(h, title);
        print_tagq(h, t);
        print_otag(h, TAG_TD, 1, tag);
        print_text(h, title);
        print_tagq(h, t);
-
        return(1);
 }
 
        return(1);
 }
 
@@ -552,49 +552,48 @@ mdoc_sh_pre(MDOC_ARGS)
 {
        struct htmlpair          tag[2];
        const struct mdoc_node  *nn;
 {
        struct htmlpair          tag[2];
        const struct mdoc_node  *nn;
+       char                     lbuf[BUFSIZ];
+       struct roffsu            su;
 
 
-       if (MDOC_HEAD == n->type) {
-               tag[0].key = ATTR_CLASS;
-               tag[0].val = "sec-head";
-               print_otag(h, TAG_DIV, 1, tag);
-               print_otag(h, TAG_SPAN, 1, tag);
-
-               for (nn = n->child; nn; nn = nn->next) {
-                       bufcat(nn->string);
-                       if (nn->next)
-                               bufcat(" ");
-               }
-               tag[0].key = ATTR_NAME;
-               tag[0].val = buf;
-               print_otag(h, TAG_A, 1, tag);
+       if (MDOC_BODY == n->type) {
+               SCALE_HS_INIT(&su, INDENT);
+               bufcat_su(h, "margin-left", &su);
+               PAIR_CLASS_INIT(&tag[0], "sec-body");
+               PAIR_STYLE_INIT(&tag[1], h);
+               print_otag(h, TAG_DIV, 2, tag);
                return(1);
        } else if (MDOC_BLOCK == n->type) {
                return(1);
        } else if (MDOC_BLOCK == n->type) {
-               tag[0].key = ATTR_CLASS;
-               tag[0].val = "sec-block";
-
+               PAIR_CLASS_INIT(&tag[0], "sec-block");
                if (n->prev && NULL == n->prev->body->child) {
                        print_otag(h, TAG_DIV, 1, tag);
                        return(1);
                }
                if (n->prev && NULL == n->prev->body->child) {
                        print_otag(h, TAG_DIV, 1, tag);
                        return(1);
                }
-
-               bufcat("margin-top: 1em;");
+               
+               SCALE_VS_INIT(&su, 1);
+               bufcat_su(h, "margin-top", &su);
                if (NULL == n->next)
                if (NULL == n->next)
-                       bufcat("margin-bottom: 1em;");
-
-               tag[1].key = ATTR_STYLE;
-               tag[1].val = buf;
+                       bufcat_su(h, "margin-bottom", &su);
 
 
+               PAIR_STYLE_INIT(&tag[1], h);
                print_otag(h, TAG_DIV, 2, tag);
                return(1);
        }
 
                print_otag(h, TAG_DIV, 2, tag);
                return(1);
        }
 
-       buffmt("margin-left: %dem;", INDENT);
-       
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = "sec-body";
-       tag[1].key = ATTR_STYLE;
-       tag[1].val = buf;
+       lbuf[0] = 0;
+       for (nn = n->child; nn; nn = nn->next) {
+               (void)strlcat(lbuf, nn->string, BUFSIZ);
+               if (nn->next)
+                       (void)strlcat(lbuf, "_", 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 = lbuf;
        print_otag(h, TAG_DIV, 2, tag);
        return(1);
 }
        print_otag(h, TAG_DIV, 2, tag);
        return(1);
 }
@@ -604,54 +603,51 @@ mdoc_sh_pre(MDOC_ARGS)
 static int
 mdoc_ss_pre(MDOC_ARGS)
 {
 static int
 mdoc_ss_pre(MDOC_ARGS)
 {
-       struct htmlpair          tag[2];
-       int                      i;
+       struct htmlpair          tag[3];
        const struct mdoc_node  *nn;
        const struct mdoc_node  *nn;
+       char                     lbuf[BUFSIZ];
+       struct roffsu            su;
 
 
-       i = 0;
+       SCALE_VS_INIT(&su, 1);
 
        if (MDOC_BODY == n->type) {
 
        if (MDOC_BODY == n->type) {
-               tag[i].key = ATTR_CLASS;
-               tag[i++].val = "ssec-body";
+               PAIR_CLASS_INIT(&tag[0], "ssec-body");
                if (n->parent->next && n->child) {
                if (n->parent->next && n->child) {
-                       bufcat("margin-bottom: 1em;");
-                       tag[i].key = ATTR_STYLE;
-                       tag[i++].val = buf;
-               }
-               print_otag(h, TAG_DIV, i, tag);
+                       bufcat_su(h, "margin-bottom", &su);
+                       PAIR_STYLE_INIT(&tag[1], h);
+                       print_otag(h, TAG_DIV, 2, tag);
+               } else
+                       print_otag(h, TAG_DIV, 1, tag);
                return(1);
        } else if (MDOC_BLOCK == n->type) {
                return(1);
        } else if (MDOC_BLOCK == n->type) {
-               tag[i].key = ATTR_CLASS;
-               tag[i++].val = "ssec-block";
+               PAIR_CLASS_INIT(&tag[0], "ssec-block");
                if (n->prev) {
                if (n->prev) {
-                       bufcat("margin-top: 1em;");
-                       tag[i].key = ATTR_STYLE;
-                       tag[i++].val = buf;
-               }
-               print_otag(h, TAG_DIV, i, tag);
+                       bufcat_su(h, "margin-top", &su);
+                       PAIR_STYLE_INIT(&tag[1], h);
+                       print_otag(h, TAG_DIV, 2, tag);
+               } else
+                       print_otag(h, TAG_DIV, 1, tag);
                return(1);
        }
 
                return(1);
        }
 
-       buffmt("margin-left: -%dem;", INDENT - HALFINDENT);
-
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = "ssec-head";
-       tag[1].key = ATTR_STYLE;
-       tag[1].val = buf;
-
-       print_otag(h, TAG_DIV, 2, tag);
-       print_otag(h, TAG_SPAN, 1, tag);
+       /* TODO: see note in mdoc_sh_pre() about duplicates. */
 
 
-       bufinit();
+       lbuf[0] = 0;
        for (nn = n->child; nn; nn = nn->next) {
        for (nn = n->child; nn; nn = nn->next) {
-               bufcat(nn->string);
+               (void)strlcat(lbuf, nn->string, BUFSIZ);
                if (nn->next)
                if (nn->next)
-                       bufcat(" ");
+                       (void)strlcat(lbuf, "_", BUFSIZ);
        }
        }
-       tag[0].key = ATTR_NAME;
-       tag[0].val = buf;
-       print_otag(h, TAG_A, 1, tag);
 
 
+       SCALE_HS_INIT(&su, INDENT - HALFINDENT);
+       su.scale = -su.scale;
+       bufcat_su(h, "margin-left", &su);
+
+       PAIR_CLASS_INIT(&tag[0], "ssec-head");
+       PAIR_STYLE_INIT(&tag[1], h);
+       tag[2].key = ATTR_ID;
+       tag[2].val = lbuf;
+       print_otag(h, TAG_DIV, 3, tag);
        return(1);
 }
 
        return(1);
 }
 
@@ -662,9 +658,7 @@ mdoc_fl_pre(MDOC_ARGS)
 {
        struct htmlpair  tag;
 
 {
        struct htmlpair  tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "flag";
-
+       PAIR_CLASS_INIT(&tag, "flag");
        print_otag(h, TAG_SPAN, 1, &tag);
        if (MDOC_Fl == n->tok) {
                print_text(h, "\\-");
        print_otag(h, TAG_SPAN, 1, &tag);
        if (MDOC_Fl == n->tok) {
                print_text(h, "\\-");
@@ -683,10 +677,10 @@ mdoc_nd_pre(MDOC_ARGS)
        if (MDOC_BODY != n->type)
                return(1);
 
        if (MDOC_BODY != n->type)
                return(1);
 
-       /* XXX - this can contain block elements! */
+       /* XXX: this tag in theory can contain block elements. */
+
        print_text(h, "\\(em");
        print_text(h, "\\(em");
-       tag.key = ATTR_CLASS;
-       tag.val = "desc-body";
+       PAIR_CLASS_INIT(&tag, "desc-body");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -701,11 +695,11 @@ mdoc_op_pre(MDOC_ARGS)
        if (MDOC_BODY != n->type)
                return(1);
 
        if (MDOC_BODY != n->type)
                return(1);
 
-       /* XXX - this can contain block elements! */
+       /* XXX: this tag in theory can contain block elements. */
+
        print_text(h, "\\(lB");
        h->flags |= HTML_NOSPACE;
        print_text(h, "\\(lB");
        h->flags |= HTML_NOSPACE;
-       tag.key = ATTR_CLASS;
-       tag.val = "opt";
+       PAIR_CLASS_INIT(&tag, "opt");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -730,14 +724,12 @@ mdoc_nm_pre(MDOC_ARGS)
 
        if ( ! (HTML_NEWLINE & h->flags))
                if (SEC_SYNOPSIS == n->sec) {
 
        if ( ! (HTML_NEWLINE & h->flags))
                if (SEC_SYNOPSIS == n->sec) {
-                       tag.key = ATTR_STYLE;
-                       tag.val = "clear: both;";
+                       bufcat_style(h, "clear", "both");
+                       PAIR_STYLE_INIT(&tag, h);
                        print_otag(h, TAG_BR, 1, &tag);
                }
 
                        print_otag(h, TAG_BR, 1, &tag);
                }
 
-       tag.key = ATTR_CLASS;
-       tag.val = "name";
-
+       PAIR_CLASS_INIT(&tag, "name");
        print_otag(h, TAG_SPAN, 1, &tag);
        if (NULL == n->child)
                print_text(h, m->name);
        print_otag(h, TAG_SPAN, 1, &tag);
        if (NULL == n->child)
                print_text(h, m->name);
@@ -751,24 +743,23 @@ static int
 mdoc_xr_pre(MDOC_ARGS)
 {
        struct htmlpair          tag[2];
 mdoc_xr_pre(MDOC_ARGS)
 {
        struct htmlpair          tag[2];
-       const char              *name, *sec;
        const struct mdoc_node  *nn;
 
        const struct mdoc_node  *nn;
 
-       nn = n->child;
-       name = nn && nn->string ? nn->string : "";
-       nn = nn ? nn->next : NULL;
-       sec = nn && nn->string ? nn->string : "";
-
-       buffmt("%s%s%s.html", name, name && sec ? "." : "", sec);
+       PAIR_CLASS_INIT(&tag[0], "link-man");
 
 
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = "link-man";
-       tag[1].key = ATTR_HREF;
-       tag[1].val = buf;
-       print_otag(h, TAG_A, 2, tag);
+       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;
+               print_otag(h, TAG_A, 2, tag);
+       } else
+               print_otag(h, TAG_A, 1, tag);
 
        nn = n->child;
        print_text(h, nn->string);
 
        nn = n->child;
        print_text(h, nn->string);
+
        if (NULL == (nn = nn->next))
                return(0);
 
        if (NULL == (nn = nn->next))
                return(0);
 
@@ -778,7 +769,6 @@ mdoc_xr_pre(MDOC_ARGS)
        print_text(h, nn->string);
        h->flags |= HTML_NOSPACE;
        print_text(h, ")");
        print_text(h, nn->string);
        h->flags |= HTML_NOSPACE;
        print_text(h, ")");
-
        return(0);
 }
 
        return(0);
 }
 
@@ -799,9 +789,7 @@ mdoc_ar_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "arg";
-
+       PAIR_CLASS_INIT(&tag, "arg");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -837,9 +825,7 @@ mdoc_xx_pre(MDOC_ARGS)
                return(1);
        }
 
                return(1);
        }
 
-       tag.key = ATTR_CLASS;
-       tag.val = "unix";
-
+       PAIR_CLASS_INIT(&tag, "unix");
        print_otag(h, TAG_SPAN, 1, &tag);
        print_text(h, pp);
        return(1);
        print_otag(h, TAG_SPAN, 1, &tag);
        print_text(h, pp);
        return(1);
@@ -853,9 +839,7 @@ mdoc_bx_pre(MDOC_ARGS)
        const struct mdoc_node  *nn;
        struct htmlpair          tag;
 
        const struct mdoc_node  *nn;
        struct htmlpair          tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "unix";
-
+       PAIR_CLASS_INIT(&tag, "unix");
        print_otag(h, TAG_SPAN, 1, &tag);
 
        for (nn = n->child; nn; nn = nn->next)
        print_otag(h, TAG_SPAN, 1, &tag);
 
        for (nn = n->child; nn; nn = nn->next)
@@ -871,32 +855,54 @@ mdoc_bx_pre(MDOC_ARGS)
 
 /* ARGSUSED */
 static int
 
 /* ARGSUSED */
 static int
-mdoc_tbl_block_pre(MDOC_ARGS, int t, int w, int o, int c)
+mdoc_it_block_pre(MDOC_ARGS, int type, int comp,
+               struct roffsu *offs, struct roffsu *width)
 {
 {
-       struct htmlpair  tag;
+       struct htmlpair          tag;
+       const struct mdoc_node  *nn;
+       struct roffsu            su;
 
 
-       switch (t) {
-       case (MDOC_Column):
-               /* FALLTHROUGH */
-       case (MDOC_Item):
-               /* FALLTHROUGH */
-       case (MDOC_Ohang):
-               buffmt("margin-left: %dem; clear: both;", o);
-               break;
-       default:
-               buffmt("margin-left: %dem; clear: both;", w + o);
-               break;
+       nn = n->parent->parent;
+       assert(nn->args);
+
+       /* XXX: see notes in mdoc_it_pre(). */
+
+       if (MDOC_Column == type) {
+               /* Don't width-pad on the left. */
+               SCALE_HS_INIT(width, 0);
+               /* Also disallow non-compact. */
+               comp = 1;
+       }
+       if (MDOC_Diag == type)
+               /* Mandate non-compact with empty prior. */
+               if (n->prev && NULL == n->prev->body->child)
+                       comp = 1;
+
+       bufcat_style(h, "clear", "both");
+       if (offs->scale > 0)
+               bufcat_su(h, "margin-left", offs);
+       if (width->scale > 0)
+               bufcat_su(h, "padding-left", width);
+
+       PAIR_STYLE_INIT(&tag, h);
+
+       /* Mandate compact following `Ss' and `Sh' starts. */
+
+       for (nn = n; nn && ! comp; nn = nn->parent) {
+               if (MDOC_BLOCK != nn->type)
+                       continue;
+               if (MDOC_Ss == nn->tok || MDOC_Sh == nn->tok)
+                       comp = 1;
+               if (nn->prev)
+                       break;
        }
 
        }
 
-       if ( ! c && MDOC_Column != t) {
-              if (n->prev && n->prev->body->child)
-                      bufcat("padding-top: 1em;");
-              else if (NULL == n->prev)
-                      bufcat("padding-top: 1em;");
+       if ( ! comp) {
+               SCALE_VS_INIT(&su, 1);
+               bufcat_su(h, "padding-top", &su);
        }
 
        }
 
-       tag.key = ATTR_STYLE;
-       tag.val = buf;
+       PAIR_STYLE_INIT(&tag, h);
        print_otag(h, TAG_DIV, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_DIV, 1, &tag);
        return(1);
 }
@@ -904,54 +910,74 @@ mdoc_tbl_block_pre(MDOC_ARGS, int t, int w, int o, int c)
 
 /* ARGSUSED */
 static int
 
 /* ARGSUSED */
 static int
-mdoc_tbl_body_pre(MDOC_ARGS, int t, int w)
+mdoc_it_body_pre(MDOC_ARGS, int type)
 {
 {
+       struct htmlpair  tag;
+       struct roffsu    su;
+
+       switch (type) {
+       case (MDOC_Item):
+               /* FALLTHROUGH */
+       case (MDOC_Ohang):
+               /* FALLTHROUGH */
+       case (MDOC_Column):
+               break;
+       default:
+               /* 
+                * XXX: this tricks CSS into aligning the bodies with
+                * the right-padding in the head. 
+                */
+               SCALE_HS_INIT(&su, 2);
+               bufcat_su(h, "margin-left", &su);
+               PAIR_STYLE_INIT(&tag, h);
+               print_otag(h, TAG_DIV, 1, &tag);
+               break;
+       }
 
 
-       print_otag(h, TAG_DIV, 0, NULL);
        return(1);
 }
 
 
 /* ARGSUSED */
 static int
        return(1);
 }
 
 
 /* ARGSUSED */
 static int
-mdoc_tbl_head_pre(MDOC_ARGS, int t, int w)
+mdoc_it_head_pre(MDOC_ARGS, int type, struct roffsu *width)
 {
        struct htmlpair  tag;
        struct ord      *ord;
        char             nbuf[BUFSIZ];
 
 {
        struct htmlpair  tag;
        struct ord      *ord;
        char             nbuf[BUFSIZ];
 
-       switch (t) {
+       switch (type) {
        case (MDOC_Item):
                /* FALLTHROUGH */
        case (MDOC_Ohang):
                print_otag(h, TAG_DIV, 0, NULL);
                break;
        case (MDOC_Column):
        case (MDOC_Item):
                /* FALLTHROUGH */
        case (MDOC_Ohang):
                print_otag(h, TAG_DIV, 0, NULL);
                break;
        case (MDOC_Column):
-               buffmt("min-width: %dem;", w);
-               bufcat("clear: none;");
+               bufcat_su(h, "min-width", width);
+               bufcat_style(h, "clear", "none");
                if (n->next && MDOC_HEAD == n->next->type)
                if (n->next && MDOC_HEAD == n->next->type)
-                       bufcat("float: left;");
-               tag.key = ATTR_STYLE;
-               tag.val = buf;
+                       bufcat_style(h, "float", "left");
+               PAIR_STYLE_INIT(&tag, h);
                print_otag(h, TAG_DIV, 1, &tag);
                break;
        default:
                print_otag(h, TAG_DIV, 1, &tag);
                break;
        default:
-               buffmt("margin-left: -%dem; min-width: %dem;", 
-                               w, w ? w - 1 : 0);
-               bufcat("clear: left;");
+               bufcat_su(h, "min-width", width);
+               SCALE_INVERT(width);
+               bufcat_su(h, "margin-left", width);
                if (n->next && n->next->child)
                if (n->next && n->next->child)
-                       bufcat("float: left;");
-               bufcat("padding-right: 1em;");
-               tag.key = ATTR_STYLE;
-               tag.val = buf;
+                       bufcat_style(h, "float", "left");
+
+               /* XXX: buffer if we run into body. */
+               SCALE_HS_INIT(width, 1);
+               bufcat_su(h, "margin-right", width);
+               PAIR_STYLE_INIT(&tag, h);
                print_otag(h, TAG_DIV, 1, &tag);
                break;
        }
 
                print_otag(h, TAG_DIV, 1, &tag);
                break;
        }
 
-       switch (t) {
+       switch (type) {
        case (MDOC_Diag):
        case (MDOC_Diag):
-               tag.key = ATTR_CLASS;
-               tag.val = "diag";
+               PAIR_CLASS_INIT(&tag, "diag");
                print_otag(h, TAG_SPAN, 1, &tag);
                break;
        case (MDOC_Enum):
                print_otag(h, TAG_SPAN, 1, &tag);
                break;
        case (MDOC_Enum):
@@ -979,42 +1005,27 @@ mdoc_tbl_head_pre(MDOC_ARGS, int t, int w)
 
 
 static int
 
 
 static int
-mdoc_tbl_pre(MDOC_ARGS, int type)
+mdoc_it_pre(MDOC_ARGS)
 {
 {
-       int                      i, w, o, c, wp;
+       int                      i, type, wp, comp;
        const struct mdoc_node  *bl, *nn;
        const struct mdoc_node  *bl, *nn;
+       struct roffsu            width, offs;
+
+       /* 
+        * XXX: be very careful in changing anything, here.  Lists in
+        * mandoc have many peculiarities; furthermore, they don't
+        * translate well into HTML and require a bit of mangling.
+        */
 
        bl = n->parent->parent;
 
        bl = n->parent->parent;
-       if (MDOC_BLOCK != n->type) 
+       if (MDOC_BLOCK != n->type)
                bl = bl->parent;
 
                bl = bl->parent;
 
-       /* FIXME: fmt_vspace() equivalent. */
-
-       assert(bl->args);
+       type = a2list(bl);
 
 
-       w = o = c = 0;
-       wp = -1;
+       /* Set default width and offset. */
 
 
-       for (i = 0; i < (int)bl->args->argc; i++) 
-               if (MDOC_Width == bl->args->argv[i].arg) {
-                       assert(bl->args->argv[i].sz);
-                       wp = i;
-                       w = a2width(bl->args->argv[i].value[0]);
-               } else if (MDOC_Offset == bl->args->argv[i].arg) {
-                       assert(bl->args->argv[i].sz);
-                       o = a2offs(bl->args->argv[i].value[0]);
-               } else if (MDOC_Compact == bl->args->argv[i].arg) 
-                       c = 1;
-       
-       if (MDOC_HEAD == n->type && MDOC_Column == type) {
-               nn = n->parent->child;
-               assert(nn && MDOC_HEAD == nn->type);
-               for (i = 0; nn && nn != n; nn = nn->next, i++)
-                       /* Counter... */ ;
-               assert(nn);
-               if (wp >= 0 && i < (int)bl->args[wp].argv->sz)
-                       w = a2width(bl->args->argv[wp].value[i]);
-       }
+       SCALE_HS_INIT(&offs, 0);
 
        switch (type) {
        case (MDOC_Enum):
 
        switch (type) {
        case (MDOC_Enum):
@@ -1024,33 +1035,68 @@ mdoc_tbl_pre(MDOC_ARGS, int type)
        case (MDOC_Hyphen):
                /* FALLTHROUGH */
        case (MDOC_Bullet):
        case (MDOC_Hyphen):
                /* FALLTHROUGH */
        case (MDOC_Bullet):
-               if (w < 4)
-                       w = 4;
+               SCALE_HS_INIT(&width, 2);
                break;
                break;
+       default:
+               SCALE_HS_INIT(&width, INDENT);
+               break;
+       }
+
+       /* Get width, offset, and compact arguments. */
+
+       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):
+               /* FALLTHROUGH */
        case (MDOC_Inset):
                /* FALLTHROUGH */
        case (MDOC_Diag):
        case (MDOC_Inset):
                /* FALLTHROUGH */
        case (MDOC_Diag):
-               w = 1;
+               SCALE_HS_INIT(&width, 0);
                break;
        default:
                break;
        default:
-               if (0 == w)
-                       w = 10;
+               if (0 == width.scale)
+                       SCALE_HS_INIT(&width, INDENT);
                break;
        }
 
                break;
        }
 
-       switch (n->type) {
-       case (MDOC_BLOCK):
-               break;
-       case (MDOC_HEAD):
-               return(mdoc_tbl_head_pre(m, n, h, type, w));
-       case (MDOC_BODY):
-               return(mdoc_tbl_body_pre(m, n, h, type, w));
-       default:
-               abort();
-               /* NOTREACHED */
+       /* 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) {
+               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);
        }
 
        }
 
-       return(mdoc_tbl_block_pre(m, n, h, type, w, o, c));
+       return(mdoc_it_head_pre(m, n, h, type, &width));
 }
 
 
 }
 
 
@@ -1071,7 +1117,6 @@ mdoc_bl_pre(MDOC_ARGS)
        ord->cookie = n;
        ord->pos = 1;
        SLIST_INSERT_HEAD(&h->ords, ord, entry);
        ord->cookie = n;
        ord->pos = 1;
        SLIST_INSERT_HEAD(&h->ords, ord, entry);
-
        return(1);
 }
 
        return(1);
 }
 
@@ -1094,20 +1139,6 @@ mdoc_bl_post(MDOC_ARGS)
 }
 
 
 }
 
 
-static int
-mdoc_it_pre(MDOC_ARGS)
-{
-       int              type;
-
-       if (MDOC_BLOCK == n->type)
-               type = a2list(n->parent->parent);
-       else
-               type = a2list(n->parent->parent->parent);
-
-       return(mdoc_tbl_pre(m, n, h, type));
-}
-
-
 /* ARGSUSED */
 static int
 mdoc_ex_pre(MDOC_ARGS)
 /* ARGSUSED */
 static int
 mdoc_ex_pre(MDOC_ARGS)
@@ -1116,11 +1147,9 @@ mdoc_ex_pre(MDOC_ARGS)
        struct tag              *t;
        struct htmlpair          tag;
 
        struct tag              *t;
        struct htmlpair          tag;
 
-       print_text(h, "The");
-
-       tag.key = ATTR_CLASS;
-       tag.val = "utility";
+       PAIR_CLASS_INIT(&tag, "utility");
 
 
+       print_text(h, "The");
        for (nn = n->child; nn; nn = nn->next) {
                t = print_otag(h, TAG_SPAN, 1, &tag);
                print_text(h, nn->string);
        for (nn = n->child; nn; nn = nn->next) {
                t = print_otag(h, TAG_SPAN, 1, &tag);
                print_text(h, nn->string);
@@ -1226,9 +1255,7 @@ mdoc_em_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "emph";
-
+       PAIR_CLASS_INIT(&tag, "emph");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1238,18 +1265,18 @@ mdoc_em_pre(MDOC_ARGS)
 static int
 mdoc_d1_pre(MDOC_ARGS)
 {
 static int
 mdoc_d1_pre(MDOC_ARGS)
 {
-       struct htmlpair tag[2];
+       struct htmlpair  tag[2];
+       struct roffsu    su;
 
        if (MDOC_BLOCK != n->type)
                return(1);
 
 
        if (MDOC_BLOCK != n->type)
                return(1);
 
-       buffmt("margin-left: %dem;", INDENT);
-
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = "lit";
-       tag[1].key = ATTR_STYLE;
-       tag[1].val = buf;
+       /* FIXME: D1 shouldn't be literal. */
 
 
+       SCALE_VS_INIT(&su, INDENT - 2);
+       bufcat_su(h, "margin-left", &su);
+       PAIR_CLASS_INIT(&tag[0], "lit");
+       PAIR_STYLE_INIT(&tag[1], h);
        print_otag(h, TAG_DIV, 2, tag);
        return(1);
 }
        print_otag(h, TAG_DIV, 2, tag);
        return(1);
 }
@@ -1261,18 +1288,20 @@ mdoc_sx_pre(MDOC_ARGS)
 {
        struct htmlpair          tag[2];
        const struct mdoc_node  *nn;
 {
        struct htmlpair          tag[2];
        const struct mdoc_node  *nn;
+       char                     buf[BUFSIZ];
 
 
-       bufcat("#");
+       /* FIXME: duplicates? */
+
+       (void)strlcpy(buf, "#", BUFSIZ);
        for (nn = n->child; nn; nn = nn->next) {
        for (nn = n->child; nn; nn = nn->next) {
-               bufcat(nn->string);
+               (void)strlcat(buf, nn->string, BUFSIZ);
                if (nn->next)
                if (nn->next)
-                       bufcat(" ");
+                       (void)strlcat(buf, "_", BUFSIZ);
        }
 
        }
 
-       tag[0].key = ATTR_HREF;
-       tag[0].val = buf;
-       tag[1].key = ATTR_CLASS;
-       tag[1].val = "link-sec";
+       PAIR_CLASS_INIT(&tag[0], "link-sec");
+       tag[1].key = ATTR_HREF;
+       tag[1].val = buf;
 
        print_otag(h, TAG_A, 2, tag);
        return(1);
 
        print_otag(h, TAG_A, 2, tag);
        return(1);
@@ -1309,10 +1338,9 @@ static int
 mdoc_bd_pre(MDOC_ARGS)
 {
        struct htmlpair          tag[2];
 mdoc_bd_pre(MDOC_ARGS)
 {
        struct htmlpair          tag[2];
-       int                      t, c, o, i;
-       const struct mdoc_node  *bl;
-
-       /* FIXME: fmt_vspace() shit. */
+       int                      type, comp, i;
+       const struct mdoc_node  *bl, *nn;
+       struct roffsu            su;
 
        if (MDOC_BLOCK == n->type)
                bl = n;
 
        if (MDOC_BLOCK == n->type)
                bl = n;
@@ -1321,17 +1349,19 @@ mdoc_bd_pre(MDOC_ARGS)
        else
                bl = n->parent;
 
        else
                bl = n->parent;
 
-       t = o = c = 0;
+       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):
        for (i = 0; i < (int)bl->args->argc; i++) 
                switch (bl->args->argv[i].arg) {
                case (MDOC_Offset):
-                       assert(bl->args->argv[i].sz);
-                       o = a2offs (bl->args->argv[i].value[0]);
+                       a2offs(bl->args->argv[i].value[0], &su);
                        break;
                case (MDOC_Compact):
                        break;
                case (MDOC_Compact):
-                       c = 1;
+                       comp = 1;
                        break;
                        break;
+               case (MDOC_Centred):
+                       /* FALLTHROUGH */
                case (MDOC_Ragged):
                        /* FALLTHROUGH */
                case (MDOC_Filled):
                case (MDOC_Ragged):
                        /* FALLTHROUGH */
                case (MDOC_Filled):
@@ -1339,40 +1369,51 @@ mdoc_bd_pre(MDOC_ARGS)
                case (MDOC_Unfilled):
                        /* FALLTHROUGH */
                case (MDOC_Literal):
                case (MDOC_Unfilled):
                        /* FALLTHROUGH */
                case (MDOC_Literal):
-                       t = bl->args->argv[i].arg;
+                       type = bl->args->argv[i].arg;
+                       break;
+               default:
                        break;
                }
 
                        break;
                }
 
+       /* FIXME: -centered, etc. formatting. */
+
        if (MDOC_BLOCK == n->type) {
        if (MDOC_BLOCK == n->type) {
-               if (o)
-                       buffmt("margin-left: %dem;", o);
-               bufcat("margin-top: 1em;");
-               tag[0].key = ATTR_STYLE;
-               tag[0].val = buf;
+               bufcat_su(h, "margin-left", &su);
+               for (nn = n; nn && ! comp; nn = nn->parent) {
+                       if (MDOC_BLOCK != nn->type)
+                               continue;
+                       if (MDOC_Ss == nn->tok || MDOC_Sh == nn->tok)
+                               comp = 1;
+                       if (nn->prev)
+                               break;
+               }
+               if (comp) {
+                       print_otag(h, TAG_DIV, 0, tag);
+                       return(1);
+               }
+               SCALE_VS_INIT(&su, 1);
+               bufcat_su(h, "margin-top", &su);
+               PAIR_STYLE_INIT(&tag[0], h);
                print_otag(h, TAG_DIV, 1, tag);
                return(1);
        }
 
                print_otag(h, TAG_DIV, 1, tag);
                return(1);
        }
 
-       switch (t) {
-       case (MDOC_Unfilled):
-       case (MDOC_Literal):
-               break;
-       default:
+       if (MDOC_Unfilled != type && MDOC_Literal != type)
                return(1);
                return(1);
-       }
-
-       bufcat("white-space: pre;");
-       tag[0].key = ATTR_STYLE;
-       tag[0].val = buf;
-       tag[1].key = ATTR_CLASS;
-       tag[1].val = "lit";
 
 
+       PAIR_CLASS_INIT(&tag[0], "lit");
+       bufcat_style(h, "white-space", "pre");
+       PAIR_STYLE_INIT(&tag[1], h);
        print_otag(h, TAG_DIV, 2, tag);
 
        print_otag(h, TAG_DIV, 2, tag);
 
-       for (n = n->child; n; n = n->next) {
+       for (nn = n->child; nn; nn = nn->next) {
                h->flags |= HTML_NOSPACE;
                h->flags |= HTML_NOSPACE;
-               print_mdoc_node(m, n, h);
-               if (n->next)
+               print_mdoc_node(m, nn, h);
+               if (NULL == nn->next)
+                       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");
        }
 
@@ -1386,9 +1427,7 @@ mdoc_pa_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "file";
-
+       PAIR_CLASS_INIT(&tag, "file");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1400,8 +1439,7 @@ mdoc_ad_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "addr";
+       PAIR_CLASS_INIT(&tag, "addr");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1413,8 +1451,9 @@ mdoc_an_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "author";
+       /* TODO: -split and -nosplit (see termp_an_pre()). */
+
+       PAIR_CLASS_INIT(&tag, "author");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1426,8 +1465,8 @@ mdoc_cd_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "config";
+       print_otag(h, TAG_DIV, 0, NULL);
+       PAIR_CLASS_INIT(&tag, "config");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1439,8 +1478,7 @@ mdoc_dv_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "define";
+       PAIR_CLASS_INIT(&tag, "define");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1452,8 +1490,7 @@ mdoc_ev_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "env";
+       PAIR_CLASS_INIT(&tag, "env");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1465,8 +1502,7 @@ mdoc_er_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "errno";
+       PAIR_CLASS_INIT(&tag, "errno");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1480,9 +1516,7 @@ mdoc_fa_pre(MDOC_ARGS)
        struct htmlpair          tag;
        struct tag              *t;
 
        struct htmlpair          tag;
        struct tag              *t;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "farg";
-
+       PAIR_CLASS_INIT(&tag, "farg");
        if (n->parent->tok != MDOC_Fo) {
                print_otag(h, TAG_SPAN, 1, &tag);
                return(1);
        if (n->parent->tok != MDOC_Fo) {
                print_otag(h, TAG_SPAN, 1, &tag);
                return(1);
@@ -1507,19 +1541,20 @@ mdoc_fa_pre(MDOC_ARGS)
 static int
 mdoc_fd_pre(MDOC_ARGS)
 {
 static int
 mdoc_fd_pre(MDOC_ARGS)
 {
-       struct htmlpair tag;
+       struct htmlpair  tag;
+       struct roffsu    su;
 
        if (SEC_SYNOPSIS == n->sec) {
                if (n->next && MDOC_Fd != n->next->tok) {
 
        if (SEC_SYNOPSIS == n->sec) {
                if (n->next && MDOC_Fd != n->next->tok) {
-                       tag.key = ATTR_STYLE;
-                       tag.val = "margin-bottom: 1em;";
+                       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);
        }
 
                        print_otag(h, TAG_DIV, 1, &tag);
                } else
                        print_otag(h, TAG_DIV, 0, NULL);
        }
 
-       tag.key = ATTR_CLASS;
-       tag.val = "macro";
+       PAIR_CLASS_INIT(&tag, "macro");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1529,19 +1564,20 @@ mdoc_fd_pre(MDOC_ARGS)
 static int
 mdoc_vt_pre(MDOC_ARGS)
 {
 static int
 mdoc_vt_pre(MDOC_ARGS)
 {
-       struct htmlpair tag;
+       struct htmlpair  tag;
+       struct roffsu    su;
 
        if (SEC_SYNOPSIS == n->sec) {
                if (n->next && MDOC_Vt != n->next->tok) {
 
        if (SEC_SYNOPSIS == n->sec) {
                if (n->next && MDOC_Vt != n->next->tok) {
-                       tag.key = ATTR_STYLE;
-                       tag.val = "margin-bottom: 1em;";
+                       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);
        }
 
                        print_otag(h, TAG_DIV, 1, &tag);
                } else
                        print_otag(h, TAG_DIV, 0, NULL);
        }
 
-       tag.key = ATTR_CLASS;
-       tag.val = "type";
+       PAIR_CLASS_INIT(&tag, "type");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1551,19 +1587,20 @@ mdoc_vt_pre(MDOC_ARGS)
 static int
 mdoc_ft_pre(MDOC_ARGS)
 {
 static int
 mdoc_ft_pre(MDOC_ARGS)
 {
-       struct htmlpair tag;
+       struct htmlpair  tag;
+       struct roffsu    su;
 
        if (SEC_SYNOPSIS == n->sec) {
                if (n->prev && MDOC_Fo == n->prev->tok) {
 
        if (SEC_SYNOPSIS == n->sec) {
                if (n->prev && MDOC_Fo == n->prev->tok) {
-                       tag.key = ATTR_STYLE;
-                       tag.val = "margin-top: 1em;";
+                       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);
        }
 
                        print_otag(h, TAG_DIV, 1, &tag);
                } else
                        print_otag(h, TAG_DIV, 0, NULL);
        }
 
-       tag.key = ATTR_CLASS;
-       tag.val = "ftype";
+       PAIR_CLASS_INIT(&tag, "ftype");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1574,42 +1611,48 @@ static int
 mdoc_fn_pre(MDOC_ARGS)
 {
        struct tag              *t;
 mdoc_fn_pre(MDOC_ARGS)
 {
        struct tag              *t;
-       struct htmlpair          tag;
+       struct htmlpair          tag[2];
        const struct mdoc_node  *nn;
        char                     nbuf[BUFSIZ];
        const char              *sp, *ep;
        const struct mdoc_node  *nn;
        char                     nbuf[BUFSIZ];
        const char              *sp, *ep;
-       int                      sz;
+       int                      sz, i;
+       struct roffsu            su;
 
        if (SEC_SYNOPSIS == n->sec) {
 
        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) {
                if (n->next) {
-                       tag.key = ATTR_STYLE;
-                       tag.val = "margin-bottom: 1em";
-                       print_otag(h, TAG_DIV, 1, &tag);
-               } else
-                       print_otag(h, TAG_DIV, 0, NULL);
+                       SCALE_VS_INIT(&su, 1);
+                       bufcat_su(h, "margin-bottom", &su);
+               }
+               PAIR_STYLE_INIT(&tag[0], h);
+               print_otag(h, TAG_DIV, 1, tag);
        }
 
        /* Split apart into type and name. */
        }
 
        /* Split apart into type and name. */
-
-       tag.key = ATTR_CLASS;
-       tag.val = "ftype";
-       t = print_otag(h, TAG_SPAN, 1, &tag);
-
        assert(n->child->string);
        sp = n->child->string;
        assert(n->child->string);
        sp = n->child->string;
-       while ((ep = strchr(sp, ' '))) {
-               sz = MIN((int)(ep - sp), BUFSIZ - 1);
-               (void)memcpy(nbuf, sp, (size_t)sz);
-               nbuf[sz] = '\0';
-               print_text(h, nbuf);
-               sp = ++ep;
-       }
 
 
-       print_tagq(h, t);
+       ep = strchr(sp, ' ');
+       if (NULL != ep) {
+               PAIR_CLASS_INIT(&tag[0], "ftype");
+               t = print_otag(h, TAG_SPAN, 1, tag);
+       
+               while (ep) {
+                       sz = MIN((int)(ep - sp), BUFSIZ - 1);
+                       (void)memcpy(nbuf, sp, (size_t)sz);
+                       nbuf[sz] = '\0';
+                       print_text(h, nbuf);
+                       sp = ++ep;
+                       ep = strchr(sp, ' ');
+               }
+               print_tagq(h, t);
+       }
 
 
-       tag.key = ATTR_CLASS;
-       tag.val = "fname";
-       t = print_otag(h, TAG_SPAN, 1, &tag);
+       PAIR_CLASS_INIT(&tag[0], "fname");
+       t = print_otag(h, TAG_SPAN, 1, tag);
 
        if (sp) {
                (void)strlcpy(nbuf, sp, BUFSIZ);
 
        if (sp) {
                (void)strlcpy(nbuf, sp, BUFSIZ);
@@ -1621,10 +1664,16 @@ mdoc_fn_pre(MDOC_ARGS)
        h->flags |= HTML_NOSPACE;
        print_text(h, "(");
 
        h->flags |= HTML_NOSPACE;
        print_text(h, "(");
 
+       bufinit(h);
+       PAIR_CLASS_INIT(&tag[0], "farg");
+       bufcat_style(h, "white-space", "nowrap");
+       PAIR_STYLE_INIT(&tag[1], h);
+
        for (nn = n->child->next; nn; nn = nn->next) {
        for (nn = n->child->next; nn; nn = nn->next) {
-               tag.key = ATTR_CLASS;
-               tag.val = "farg";
-               t = print_otag(h, TAG_SPAN, 1, &tag);
+               i = 1;
+               if (SEC_SYNOPSIS == n->sec)
+                       i = 2;
+               t = print_otag(h, TAG_SPAN, i, tag);
                print_text(h, nn->string);
                print_tagq(h, t);
                if (nn->next)
                print_text(h, nn->string);
                print_tagq(h, t);
                if (nn->next)
@@ -1632,7 +1681,6 @@ mdoc_fn_pre(MDOC_ARGS)
        }
 
        print_text(h, ")");
        }
 
        print_text(h, ")");
-
        if (SEC_SYNOPSIS == n->sec)
                print_text(h, ";");
 
        if (SEC_SYNOPSIS == n->sec)
                print_text(h, ";");
 
@@ -1644,11 +1692,13 @@ mdoc_fn_pre(MDOC_ARGS)
 static int
 mdoc_sp_pre(MDOC_ARGS)
 {
 static int
 mdoc_sp_pre(MDOC_ARGS)
 {
-       int             len;
-       struct htmlpair tag;
+       int              len;
+       struct htmlpair  tag;
+       struct roffsu    su;
 
        switch (n->tok) {
        case (MDOC_sp):
 
        switch (n->tok) {
        case (MDOC_sp):
+               /* FIXME: can this have a scaling indicator? */
                len = n->child ? atoi(n->child->string) : 1;
                break;
        case (MDOC_br):
                len = n->child ? atoi(n->child->string) : 1;
                break;
        case (MDOC_br):
@@ -1659,9 +1709,9 @@ mdoc_sp_pre(MDOC_ARGS)
                break;
        }
 
                break;
        }
 
-       buffmt("height: %dem", len);
-       tag.key = ATTR_STYLE;
-       tag.val = buf;
+       SCALE_VS_INIT(&su, len);
+       bufcat_su(h, "height", &su);
+       PAIR_STYLE_INIT(&tag, h);
        print_otag(h, TAG_DIV, 1, &tag);
        return(1);
 
        print_otag(h, TAG_DIV, 1, &tag);
        return(1);
 
@@ -1702,16 +1752,11 @@ mdoc_lk_pre(MDOC_ARGS)
 
        nn = n->child;
 
 
        nn = n->child;
 
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = "link-ext";
+       PAIR_CLASS_INIT(&tag[0], "link-ext");
        tag[1].key = ATTR_HREF;
        tag[1].val = nn->string;
        tag[1].key = ATTR_HREF;
        tag[1].val = nn->string;
-
        print_otag(h, TAG_A, 2, tag);
 
        print_otag(h, TAG_A, 2, tag);
 
-       if (NULL == nn->next)
-               return(1);
-
        for (nn = nn->next; nn; nn = nn->next) 
                print_text(h, nn->string);
 
        for (nn = nn->next; nn; nn = nn->next) 
                print_text(h, nn->string);
 
@@ -1727,17 +1772,13 @@ mdoc_mt_pre(MDOC_ARGS)
        struct tag              *t;
        const struct mdoc_node  *nn;
 
        struct tag              *t;
        const struct mdoc_node  *nn;
 
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = "link-mail";
+       PAIR_CLASS_INIT(&tag[0], "link-mail");
 
        for (nn = n->child; nn; nn = nn->next) {
 
        for (nn = n->child; nn; nn = nn->next) {
-               bufinit();
-               bufcat("mailto:");
-               bufcat(nn->string);
-
-               tag[1].key = ATTR_HREF;
-               tag[1].val = buf;
-
+               bufinit(h);
+               bufcat(h, "mailto:");
+               bufcat(h, nn->string);
+               PAIR_STYLE_INIT(&tag[1], h);
                t = print_otag(h, TAG_A, 2, tag);
                print_text(h, nn->string);
                print_tagq(h, t);
                t = print_otag(h, TAG_A, 2, tag);
                print_text(h, nn->string);
                print_tagq(h, t);
@@ -1761,8 +1802,7 @@ mdoc_fo_pre(MDOC_ARGS)
        } else if (MDOC_BLOCK == n->type)
                return(1);
 
        } else if (MDOC_BLOCK == n->type)
                return(1);
 
-       tag.key = ATTR_CLASS;
-       tag.val = "fname";
+       PAIR_CLASS_INIT(&tag, "fname");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1786,21 +1826,25 @@ static int
 mdoc_in_pre(MDOC_ARGS)
 {
        const struct mdoc_node  *nn;
 mdoc_in_pre(MDOC_ARGS)
 {
        const struct mdoc_node  *nn;
-       struct htmlpair          tag;
+       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) {
 
        if (SEC_SYNOPSIS == n->sec) {
                if (n->next && MDOC_In != n->next->tok) {
-                       tag.key = ATTR_STYLE;
-                       tag.val = "margin-bottom: 1em;";
-                       print_otag(h, TAG_DIV, 1, &tag);
+                       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);
        }
 
                } else
                        print_otag(h, TAG_DIV, 0, NULL);
        }
 
-       tag.key = ATTR_CLASS;
-       tag.val = "includes";
+       /* FIXME: there's a buffer bug in here somewhere. */
 
 
-       print_otag(h, TAG_SPAN, 1, &tag);
+       PAIR_CLASS_INIT(&tag[0], "includes");
+       print_otag(h, TAG_SPAN, 1, tag);
 
        if (SEC_SYNOPSIS == n->sec)
                print_text(h, "#include");
 
        if (SEC_SYNOPSIS == n->sec)
                print_text(h, "#include");
@@ -1810,8 +1854,18 @@ mdoc_in_pre(MDOC_ARGS)
 
        /* XXX -- see warning in termp_in_post(). */
 
 
        /* XXX -- see warning in termp_in_post(). */
 
-       for (nn = n->child; nn; nn = nn->next)
+       for (nn = n->child; nn; nn = nn->next) {
+               PAIR_CLASS_INIT(&tag[0], "link-includes");
+               i = 1;
+               if (h->base_includes) {
+                       buffmt_includes(h, nn->string);
+                       tag[i].key = ATTR_HREF;
+                       tag[i++].val = h->buf;
+               }
+               t = print_otag(h, TAG_A, i, tag);
                print_mdoc_node(m, nn, h);
                print_mdoc_node(m, nn, h);
+               print_tagq(h, t);
+       }
 
        h->flags |= HTML_NOSPACE;
        print_text(h, ">");
 
        h->flags |= HTML_NOSPACE;
        print_text(h, ">");
@@ -1826,9 +1880,7 @@ mdoc_ic_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "cmd";
-
+       PAIR_CLASS_INIT(&tag, "cmd");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1843,12 +1895,10 @@ mdoc_rv_pre(MDOC_ARGS)
        struct tag              *t;
 
        print_otag(h, TAG_DIV, 0, NULL);
        struct tag              *t;
 
        print_otag(h, TAG_DIV, 0, NULL);
-
        print_text(h, "The");
 
        for (nn = n->child; nn; nn = nn->next) {
        print_text(h, "The");
 
        for (nn = n->child; nn; nn = nn->next) {
-               tag.key = ATTR_CLASS;
-               tag.val = "fname";
+               PAIR_CLASS_INIT(&tag, "fname");
                t = print_otag(h, TAG_SPAN, 1, &tag);
                print_text(h, nn->string);
                print_tagq(h, t);
                t = print_otag(h, TAG_SPAN, 1, &tag);
                print_text(h, nn->string);
                print_tagq(h, t);
@@ -1870,8 +1920,7 @@ mdoc_rv_pre(MDOC_ARGS)
                print_text(h, "the value 0 if successful; otherwise the value "
                        "-1 is returned and the global variable");
 
                print_text(h, "the value 0 if successful; otherwise the value "
                        "-1 is returned and the global variable");
 
-       tag.key = ATTR_CLASS;
-       tag.val = "var";
+       PAIR_CLASS_INIT(&tag, "var");
        t = print_otag(h, TAG_SPAN, 1, &tag);
        print_text(h, "errno");
        print_tagq(h, t);
        t = print_otag(h, TAG_SPAN, 1, &tag);
        print_text(h, "errno");
        print_tagq(h, t);
@@ -1886,8 +1935,7 @@ mdoc_va_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "var";
+       PAIR_CLASS_INIT(&tag, "var");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -1934,36 +1982,36 @@ mdoc_ap_pre(MDOC_ARGS)
 static int
 mdoc_bf_pre(MDOC_ARGS)
 {
 static int
 mdoc_bf_pre(MDOC_ARGS)
 {
-       int             i;
-       struct htmlpair tag[2];
+       int              i;
+       struct htmlpair  tag[2];
+       struct roffsu    su;
 
        if (MDOC_HEAD == n->type)
                return(0);
        else if (MDOC_BLOCK != n->type)
                return(1);
 
 
        if (MDOC_HEAD == n->type)
                return(0);
        else if (MDOC_BLOCK != n->type)
                return(1);
 
-       tag[0].key = ATTR_CLASS;
-       tag[0].val = NULL;
+       PAIR_CLASS_INIT(&tag[0], "lit");
 
        if (n->head->child) {
                if ( ! strcmp("Em", n->head->child->string))
 
        if (n->head->child) {
                if ( ! strcmp("Em", n->head->child->string))
-                       tag[0].val = "emph";
+                       PAIR_CLASS_INIT(&tag[0], "emph");
                else if ( ! strcmp("Sy", n->head->child->string))
                else if ( ! strcmp("Sy", n->head->child->string))
-                       tag[0].val = "symb";
+                       PAIR_CLASS_INIT(&tag[0], "symb");
                else if ( ! strcmp("Li", n->head->child->string))
                else if ( ! strcmp("Li", n->head->child->string))
-                       tag[0].val = "lit";
+                       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):
        } else {
                assert(n->args);
                for (i = 0; i < (int)n->args->argc; i++) 
                        switch (n->args->argv[i].arg) {
                        case (MDOC_Symbolic):
-                               tag[0].val = "symb";
+                               PAIR_CLASS_INIT(&tag[0], "symb");
                                break;
                        case (MDOC_Literal):
                                break;
                        case (MDOC_Literal):
-                               tag[0].val = "lit";
+                               PAIR_CLASS_INIT(&tag[0], "lit");
                                break;
                        case (MDOC_Emphasis):
                                break;
                        case (MDOC_Emphasis):
-                               tag[0].val = "emph";
+                               PAIR_CLASS_INIT(&tag[0], "emph");
                                break;
                        default:
                                break;
                                break;
                        default:
                                break;
@@ -1972,9 +2020,10 @@ mdoc_bf_pre(MDOC_ARGS)
 
        /* FIXME: div's have spaces stripped--we want them. */
 
 
        /* FIXME: div's have spaces stripped--we want them. */
 
-       assert(tag[0].val);
-       tag[1].key = ATTR_STYLE;
-       tag[1].val = "display: inline; margin-right: 1em;";
+       bufcat_style(h, "display", "inline");
+       SCALE_HS_INIT(&su, 1);
+       bufcat_su(h, "margin-right", &su);
+       PAIR_STYLE_INIT(&tag[1], h);
        print_otag(h, TAG_DIV, 2, tag);
        return(1);
 }
        print_otag(h, TAG_DIV, 2, tag);
        return(1);
 }
@@ -1986,8 +2035,7 @@ mdoc_ms_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "symb";
+       PAIR_CLASS_INIT(&tag, "symb");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -2017,19 +2065,20 @@ mdoc_pf_post(MDOC_ARGS)
 static int
 mdoc_rs_pre(MDOC_ARGS)
 {
 static int
 mdoc_rs_pre(MDOC_ARGS)
 {
-       struct htmlpair tag;
+       struct htmlpair  tag;
+       struct roffsu    su;
 
        if (MDOC_BLOCK != n->type)
                return(1);
 
        if (n->prev && SEC_SEE_ALSO == n->sec) {
 
        if (MDOC_BLOCK != n->type)
                return(1);
 
        if (n->prev && SEC_SEE_ALSO == n->sec) {
-               tag.key = ATTR_STYLE;
-               tag.val = "margin-top: 1em;";
+               SCALE_VS_INIT(&su, 1);
+               bufcat_su(h, "margin-top", &su);
+               PAIR_STYLE_INIT(&tag, h);
                print_otag(h, TAG_DIV, 1, &tag);
        }
 
                print_otag(h, TAG_DIV, 1, &tag);
        }
 
-       tag.key = ATTR_CLASS;
-       tag.val = "ref";
+       PAIR_CLASS_INIT(&tag, "ref");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -2042,9 +2091,7 @@ mdoc_li_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "lit";
-
+       PAIR_CLASS_INIT(&tag, "lit");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -2056,9 +2103,7 @@ mdoc_sy_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "symb";
-
+       PAIR_CLASS_INIT(&tag, "symb");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -2090,12 +2135,9 @@ mdoc_lb_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
-       tag.val = "lib";
-
        if (SEC_SYNOPSIS == n->sec)
                print_otag(h, TAG_DIV, 0, NULL);
        if (SEC_SYNOPSIS == n->sec)
                print_otag(h, TAG_DIV, 0, NULL);
-
+       PAIR_CLASS_INIT(&tag, "lib");
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
        print_otag(h, TAG_SPAN, 1, &tag);
        return(1);
 }
@@ -2107,49 +2149,49 @@ mdoc__x_pre(MDOC_ARGS)
 {
        struct htmlpair tag;
 
 {
        struct htmlpair tag;
 
-       tag.key = ATTR_CLASS;
+       /* TODO: %U. */
 
        switch (n->tok) {
        case(MDOC__A):
 
        switch (n->tok) {
        case(MDOC__A):
-               tag.val = "ref-auth";
+               PAIR_CLASS_INIT(&tag, "ref-auth");
                break;
        case(MDOC__B):
                break;
        case(MDOC__B):
-               tag.val = "ref-book";
+               PAIR_CLASS_INIT(&tag, "ref-book");
                break;
        case(MDOC__C):
                break;
        case(MDOC__C):
-               tag.val = "ref-city";
+               PAIR_CLASS_INIT(&tag, "ref-city");
                break;
        case(MDOC__D):
                break;
        case(MDOC__D):
-               tag.val = "ref-date";
+               PAIR_CLASS_INIT(&tag, "ref-date");
                break;
        case(MDOC__I):
                break;
        case(MDOC__I):
-               tag.val = "ref-issue";
+               PAIR_CLASS_INIT(&tag, "ref-issue");
                break;
        case(MDOC__J):
                break;
        case(MDOC__J):
-               tag.val = "ref-jrnl";
+               PAIR_CLASS_INIT(&tag, "ref-jrnl");
                break;
        case(MDOC__N):
                break;
        case(MDOC__N):
-               tag.val = "ref-num";
+               PAIR_CLASS_INIT(&tag, "ref-num");
                break;
        case(MDOC__O):
                break;
        case(MDOC__O):
-               tag.val = "ref-opt";
+               PAIR_CLASS_INIT(&tag, "ref-opt");
                break;
        case(MDOC__P):
                break;
        case(MDOC__P):
-               tag.val = "ref-page";
+               PAIR_CLASS_INIT(&tag, "ref-page");
                break;
        case(MDOC__Q):
                break;
        case(MDOC__Q):
-               tag.val = "ref-corp";
+               PAIR_CLASS_INIT(&tag, "ref-corp");
                break;
        case(MDOC__R):
                break;
        case(MDOC__R):
-               tag.val = "ref-rep";
+               PAIR_CLASS_INIT(&tag, "ref-rep");
                break;
        case(MDOC__T):
                break;
        case(MDOC__T):
+               PAIR_CLASS_INIT(&tag, "ref-title");
                print_text(h, "\\(lq");
                h->flags |= HTML_NOSPACE;
                print_text(h, "\\(lq");
                h->flags |= HTML_NOSPACE;
-               tag.val = "ref-title";
                break;
        case(MDOC__V):
                break;
        case(MDOC__V):
-               tag.val = "ref-vol";
+               PAIR_CLASS_INIT(&tag, "ref-vol");
                break;
        default:
                abort();
                break;
        default:
                abort();
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