]> git.cameronkatri.com Git - mandoc.git/blobdiff - mdoc_html.c
For -man -Thtml, ignore author-specified .HP widths because they
[mandoc.git] / mdoc_html.c
index 9d6ca1afe63501c2f7449a71c3c35325fe8cacce..1b06e43fe834b0be71a5fb3a0fa962cf6c1423d4 100644 (file)
@@ -1,7 +1,7 @@
-/*     $Id: mdoc_html.c,v 1.266 2017/02/05 19:29:19 schwarze Exp $ */
+/*     $Id: mdoc_html.c,v 1.306 2018/06/10 16:15:43 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2014, 2015, 2016, 2017 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2014,2015,2016,2017,2018 Ingo Schwarze <schwarze@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -27,6 +27,7 @@
 #include <unistd.h>
 
 #include "mandoc_aux.h"
+#include "mandoc.h"
 #include "roff.h"
 #include "mdoc.h"
 #include "out.h"
@@ -48,15 +49,18 @@ struct      htmlmdoc {
        void            (*post)(MDOC_ARGS);
 };
 
-static char             *make_id(const struct roff_node *);
-static void              print_mdoc_head(MDOC_ARGS);
+static char             *cond_id(const struct roff_node *);
+static void              print_mdoc_head(const struct roff_meta *,
+                               struct html *);
 static void              print_mdoc_node(MDOC_ARGS);
 static void              print_mdoc_nodelist(MDOC_ARGS);
 static void              synopsis_pre(struct html *,
                                const struct roff_node *);
 
-static void              mdoc_root_post(MDOC_ARGS);
-static int               mdoc_root_pre(MDOC_ARGS);
+static void              mdoc_root_post(const struct roff_meta *,
+                               struct html *);
+static int               mdoc_root_pre(const struct roff_meta *,
+                               struct html *);
 
 static void              mdoc__x_post(MDOC_ARGS);
 static int               mdoc__x_pre(MDOC_ARGS);
@@ -108,8 +112,8 @@ static      int               mdoc_rs_pre(MDOC_ARGS);
 static int               mdoc_sh_pre(MDOC_ARGS);
 static int               mdoc_skip_pre(MDOC_ARGS);
 static int               mdoc_sm_pre(MDOC_ARGS);
-static int               mdoc_sp_pre(MDOC_ARGS);
 static int               mdoc_ss_pre(MDOC_ARGS);
+static int               mdoc_st_pre(MDOC_ARGS);
 static int               mdoc_sx_pre(MDOC_ARGS);
 static int               mdoc_sy_pre(MDOC_ARGS);
 static int               mdoc_va_pre(MDOC_ARGS);
@@ -117,8 +121,7 @@ static      int               mdoc_vt_pre(MDOC_ARGS);
 static int               mdoc_xr_pre(MDOC_ARGS);
 static int               mdoc_xx_pre(MDOC_ARGS);
 
-static const struct htmlmdoc mdocs[MDOC_MAX] = {
-       {mdoc_ap_pre, NULL}, /* Ap */
+static const struct htmlmdoc __mdocs[MDOC_MAX - MDOC_Dd] = {
        {NULL, NULL}, /* Dd */
        {NULL, NULL}, /* Dt */
        {NULL, NULL}, /* Os */
@@ -134,6 +137,7 @@ static      const struct htmlmdoc mdocs[MDOC_MAX] = {
        {mdoc_it_pre, NULL}, /* It */
        {mdoc_ad_pre, NULL}, /* Ad */
        {mdoc_an_pre, NULL}, /* An */
+       {mdoc_ap_pre, NULL}, /* Ap */
        {mdoc_ar_pre, NULL}, /* Ar */
        {mdoc_cd_pre, NULL}, /* Cd */
        {mdoc_cm_pre, NULL}, /* Cm */
@@ -155,7 +159,7 @@ static      const struct htmlmdoc mdocs[MDOC_MAX] = {
        {mdoc_ft_pre, NULL}, /* Ot */
        {mdoc_pa_pre, NULL}, /* Pa */
        {mdoc_ex_pre, NULL}, /* Rv */
-       {NULL, NULL}, /* St */
+       {mdoc_st_pre, NULL}, /* St */
        {mdoc_va_pre, NULL}, /* Va */
        {mdoc_vt_pre, NULL}, /* Vt */
        {mdoc_xr_pre, NULL}, /* Xr */
@@ -173,7 +177,7 @@ static      const struct htmlmdoc mdocs[MDOC_MAX] = {
        {NULL, NULL}, /* Ac */
        {mdoc_quote_pre, mdoc_quote_post}, /* Ao */
        {mdoc_quote_pre, mdoc_quote_post}, /* Aq */
-       {NULL, NULL}, /* At */
+       {mdoc_xx_pre, NULL}, /* At */
        {NULL, NULL}, /* Bc */
        {mdoc_bf_pre, NULL}, /* Bf */
        {mdoc_quote_pre, mdoc_quote_post}, /* Bo */
@@ -236,12 +240,10 @@ static    const struct htmlmdoc mdocs[MDOC_MAX] = {
        {mdoc_quote_pre, mdoc_quote_post}, /* En */
        {mdoc_xx_pre, NULL}, /* Dx */
        {mdoc__x_pre, mdoc__x_post}, /* %Q */
-       {mdoc_sp_pre, NULL}, /* br */
-       {mdoc_sp_pre, NULL}, /* sp */
        {mdoc__x_pre, mdoc__x_post}, /* %U */
        {NULL, NULL}, /* Ta */
-       {mdoc_skip_pre, NULL}, /* ll */
 };
+static const struct htmlmdoc *const mdocs = __mdocs - MDOC_Dd;
 
 
 /*
@@ -285,30 +287,34 @@ synopsis_pre(struct html *h, const struct roff_node *n)
 void
 html_mdoc(void *arg, const struct roff_man *mdoc)
 {
-       struct html     *h;
-       struct tag      *t;
+       struct html             *h;
+       struct roff_node        *n;
+       struct tag              *t;
 
        h = (struct html *)arg;
+       n = mdoc->first->child;
 
        if ((h->oflags & HTML_FRAGMENT) == 0) {
                print_gen_decls(h);
                print_otag(h, TAG_HTML, "");
+               if (n->type == ROFFT_COMMENT)
+                       print_gen_comment(h, n);
                t = print_otag(h, TAG_HEAD, "");
-               print_mdoc_head(&mdoc->meta, mdoc->first->child, h);
+               print_mdoc_head(&mdoc->meta, h);
                print_tagq(h, t);
                print_otag(h, TAG_BODY, "");
        }
 
-       mdoc_root_pre(&mdoc->meta, mdoc->first->child, h);
+       mdoc_root_pre(&mdoc->meta, h);
        t = print_otag(h, TAG_DIV, "c", "manual-text");
-       print_mdoc_nodelist(&mdoc->meta, mdoc->first->child, h);
+       print_mdoc_nodelist(&mdoc->meta, n, h);
        print_tagq(h, t);
-       mdoc_root_post(&mdoc->meta, mdoc->first->child, h);
+       mdoc_root_post(&mdoc->meta, h);
        print_tagq(h, NULL);
 }
 
 static void
-print_mdoc_head(MDOC_ARGS)
+print_mdoc_head(const struct roff_meta *meta, struct html *h)
 {
        char    *cp;
 
@@ -345,7 +351,7 @@ print_mdoc_node(MDOC_ARGS)
        int              child;
        struct tag      *t;
 
-       if (n->flags & NODE_NOPRT)
+       if (n->type == ROFFT_COMMENT || n->flags & NODE_NOPRT)
                return;
 
        child = 1;
@@ -361,9 +367,9 @@ print_mdoc_node(MDOC_ARGS)
                 * Make sure that if we're in a literal mode already
                 * (i.e., within a <PRE>) don't print the newline.
                 */
-               if (' ' == *n->string && NODE_LINE & n->flags)
-                       if ( ! (HTML_LITERAL & h->flags))
-                               print_otag(h, TAG_BR, "");
+               if (*n->string == ' ' && n->flags & NODE_LINE &&
+                   (h->flags & (HTML_LITERAL | HTML_NONEWLINE)) == 0)
+                       print_otag(h, TAG_BR, "");
                if (NODE_DELIMC & n->flags)
                        h->flags |= HTML_NOSPACE;
                print_text(h, n->string);
@@ -392,7 +398,14 @@ print_mdoc_node(MDOC_ARGS)
                        t = h->tag;
                }
                assert(h->tblt == NULL);
-               if (mdocs[n->tok].pre && (n->end == ENDBODY_NOT || n->child))
+               if (n->tok < ROFF_MAX) {
+                       roff_html_pre(h, n);
+                       child = 0;
+                       break;
+               }
+               assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
+               if (mdocs[n->tok].pre != NULL &&
+                   (n->end == ENDBODY_NOT || n->child != NULL))
                        child = (*mdocs[n->tok].pre)(meta, n, h);
                break;
        }
@@ -411,19 +424,19 @@ print_mdoc_node(MDOC_ARGS)
        case ROFFT_EQN:
                break;
        default:
-               if ( ! mdocs[n->tok].post || n->flags & NODE_ENDED)
+               if (n->tok < ROFF_MAX ||
+                   mdocs[n->tok].post == NULL ||
+                   n->flags & NODE_ENDED)
                        break;
                (*mdocs[n->tok].post)(meta, n, h);
                if (n->end != ENDBODY_NOT)
                        n->body->flags |= NODE_ENDED;
-               if (n->end == ENDBODY_NOSPACE)
-                       h->flags |= HTML_NOSPACE;
                break;
        }
 }
 
 static void
-mdoc_root_post(MDOC_ARGS)
+mdoc_root_post(const struct roff_meta *meta, struct html *h)
 {
        struct tag      *t, *tt;
 
@@ -440,7 +453,7 @@ mdoc_root_post(MDOC_ARGS)
 }
 
 static int
-mdoc_root_pre(MDOC_ARGS)
+mdoc_root_pre(const struct roff_meta *meta, struct html *h)
 {
        struct tag      *t, *tt;
        char            *volume, *title;
@@ -478,25 +491,19 @@ mdoc_root_pre(MDOC_ARGS)
 }
 
 static char *
-make_id(const struct roff_node *n)
+cond_id(const struct roff_node *n)
 {
-       const struct roff_node  *nch;
-       char                    *buf, *cp;
-
-       for (nch = n->child; nch != NULL; nch = nch->next)
-               if (nch->type != ROFFT_TEXT)
-                       return NULL;
-
-       buf = NULL;
-       deroff(&buf, n);
-
-       /* http://www.w3.org/TR/html5/dom.html#the-id-attribute */
-
-       for (cp = buf; *cp != '\0'; cp++)
-               if (*cp == ' ')
-                       *cp = '_';
-
-       return buf;
+       if (n->child != NULL &&
+           n->child->type == ROFFT_TEXT &&
+           (n->prev == NULL ||
+            (n->prev->type == ROFFT_TEXT &&
+             strcmp(n->prev->string, "|") == 0)) &&
+           (n->parent->tok == MDOC_It ||
+            (n->parent->tok == MDOC_Xo &&
+             n->parent->parent->prev == NULL &&
+             n->parent->parent->parent->tok == MDOC_It)))
+               return html_make_id(n, 1);
+       return NULL;
 }
 
 static int
@@ -506,9 +513,10 @@ mdoc_sh_pre(MDOC_ARGS)
 
        switch (n->type) {
        case ROFFT_HEAD:
-               id = make_id(n);
-               print_otag(h, TAG_H1, "ci", "Sh", id);
-               free(id);
+               id = html_make_id(n, 1);
+               print_otag(h, TAG_H1, "cTi", "Sh", id);
+               if (id != NULL)
+                       print_otag(h, TAG_A, "chR", "permalink", id);
                break;
        case ROFFT_BODY:
                if (n->sec == SEC_AUTHORS)
@@ -528,18 +536,23 @@ mdoc_ss_pre(MDOC_ARGS)
        if (n->type != ROFFT_HEAD)
                return 1;
 
-       id = make_id(n);
-       print_otag(h, TAG_H2, "ci", "Ss", id);
-       free(id);
+       id = html_make_id(n, 1);
+       print_otag(h, TAG_H2, "cTi", "Ss", id);
+       if (id != NULL)
+               print_otag(h, TAG_A, "chR", "permalink", id);
        return 1;
 }
 
 static int
 mdoc_fl_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_B, "c", "Fl");
-       print_text(h, "\\-");
+       char    *id;
 
+       if ((id = cond_id(n)) != NULL)
+               print_otag(h, TAG_A, "chR", "permalink", id);
+       print_otag(h, TAG_CODE, "cTi", "Fl", id);
+
+       print_text(h, "\\-");
        if (!(n->child == NULL &&
            (n->next == NULL ||
             n->next->type == ROFFT_TEXT ||
@@ -552,7 +565,11 @@ mdoc_fl_pre(MDOC_ARGS)
 static int
 mdoc_cm_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_B, "c", "Cm");
+       char    *id;
+
+       if ((id = cond_id(n)) != NULL)
+               print_otag(h, TAG_A, "chR", "permalink", id);
+       print_otag(h, TAG_CODE, "cTi", "Cm", id);
        return 1;
 }
 
@@ -562,27 +579,21 @@ mdoc_nd_pre(MDOC_ARGS)
        if (n->type != ROFFT_BODY)
                return 1;
 
-       /* XXX: this tag in theory can contain block elements. */
-
        print_text(h, "\\(em");
-       print_otag(h, TAG_SPAN, "c", "Nd");
+       /* Cannot use TAG_SPAN because it may contain blocks. */
+       print_otag(h, TAG_DIV, "cT", "Nd");
        return 1;
 }
 
 static int
 mdoc_nm_pre(MDOC_ARGS)
 {
-       struct tag      *t;
-       int              len;
-
        switch (n->type) {
        case ROFFT_HEAD:
                print_otag(h, TAG_TD, "");
                /* FALLTHROUGH */
        case ROFFT_ELEM:
-               print_otag(h, TAG_B, "c", "Nm");
-               if (n->child == NULL && meta->name != NULL)
-                       print_text(h, meta->name);
+               print_otag(h, TAG_CODE, "cT", "Nm");
                return 1;
        case ROFFT_BODY:
                print_otag(h, TAG_TD, "");
@@ -590,21 +601,8 @@ mdoc_nm_pre(MDOC_ARGS)
        default:
                break;
        }
-
        synopsis_pre(h, n);
        print_otag(h, TAG_TABLE, "c", "Nm");
-
-       for (len = 0, n = n->head->child; n; n = n->next)
-               if (n->type == ROFFT_TEXT)
-                       len += html_strlen(n->string);
-
-       if (len == 0 && meta->name != NULL)
-               len = html_strlen(meta->name);
-
-       t = print_otag(h, TAG_COLGROUP, "");
-       print_otag(h, TAG_COL, "shw", len);
-       print_otag(h, TAG_COL, "");
-       print_tagq(h, t);
        print_otag(h, TAG_TR, "");
        return 1;
 }
@@ -616,11 +614,11 @@ mdoc_xr_pre(MDOC_ARGS)
                return 0;
 
        if (h->base_man)
-               print_otag(h, TAG_A, "chM", "Xr",
+               print_otag(h, TAG_A, "cThM", "Xr",
                    n->child->string, n->child->next == NULL ?
                    NULL : n->child->next->string);
        else
-               print_otag(h, TAG_A, "c", "Xr");
+               print_otag(h, TAG_A, "cT", "Xr");
 
        n = n->child;
        print_text(h, n->string);
@@ -649,7 +647,7 @@ mdoc_ns_pre(MDOC_ARGS)
 static int
 mdoc_ar_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_I, "c", "Ar");
+       print_otag(h, TAG_VAR, "cT", "Ar");
        return 1;
 }
 
@@ -665,50 +663,13 @@ mdoc_it_pre(MDOC_ARGS)
 {
        const struct roff_node  *bl;
        struct tag              *t;
-       const char              *cattr;
        enum mdoc_list           type;
 
        bl = n->parent;
-       while (bl != NULL && bl->tok != MDOC_Bl)
+       while (bl->tok != MDOC_Bl)
                bl = bl->parent;
        type = bl->norm->Bl.type;
 
-       switch (type) {
-       case LIST_bullet:
-               cattr = "It-bullet";
-               break;
-       case LIST_dash:
-       case LIST_hyphen:
-               cattr = "It-dash";
-               break;
-       case LIST_item:
-               cattr = "It-item";
-               break;
-       case LIST_enum:
-               cattr = "It-enum";
-               break;
-       case LIST_diag:
-               cattr = "It-diag";
-               break;
-       case LIST_hang:
-               cattr = "It-hang";
-               break;
-       case LIST_inset:
-               cattr = "It-inset";
-               break;
-       case LIST_ohang:
-               cattr = "It-ohang";
-               break;
-       case LIST_tag:
-               cattr = "It-tag";
-               break;
-       case LIST_column:
-               cattr = "It-column";
-               break;
-       default:
-               break;
-       }
-
        switch (type) {
        case LIST_bullet:
        case LIST_dash:
@@ -719,10 +680,7 @@ mdoc_it_pre(MDOC_ARGS)
                case ROFFT_HEAD:
                        return 0;
                case ROFFT_BODY:
-                       if (bl->norm->Bl.comp)
-                               print_otag(h, TAG_LI, "csvt", cattr, 0);
-                       else
-                               print_otag(h, TAG_LI, "c", cattr);
+                       print_otag(h, TAG_LI, "");
                        break;
                default:
                        break;
@@ -734,16 +692,10 @@ mdoc_it_pre(MDOC_ARGS)
        case LIST_ohang:
                switch (n->type) {
                case ROFFT_HEAD:
-                       if (bl->norm->Bl.comp)
-                               print_otag(h, TAG_DT, "csvt", cattr, 0);
-                       else
-                               print_otag(h, TAG_DT, "c", cattr);
-                       if (type == LIST_diag)
-                               print_otag(h, TAG_B, "c", cattr);
+                       print_otag(h, TAG_DT, "");
                        break;
                case ROFFT_BODY:
-                       print_otag(h, TAG_DD, "cswl", cattr,
-                           bl->norm->Bl.width);
+                       print_otag(h, TAG_DD, "");
                        break;
                default:
                        break;
@@ -754,25 +706,24 @@ mdoc_it_pre(MDOC_ARGS)
                case ROFFT_HEAD:
                        if (h->style != NULL && !bl->norm->Bl.comp &&
                            (n->parent->prev == NULL ||
+                            n->parent->prev->body == NULL ||
                             n->parent->prev->body->child != NULL)) {
-                               t = print_otag(h, TAG_DT, "csWl",
-                                   cattr, bl->norm->Bl.width);
+                               t = print_otag(h, TAG_DT, "");
                                print_text(h, "\\ ");
                                print_tagq(h, t);
-                               t = print_otag(h, TAG_DD, "c", cattr);
+                               t = print_otag(h, TAG_DD, "");
                                print_text(h, "\\ ");
                                print_tagq(h, t);
                        }
-                       print_otag(h, TAG_DT, "csWl", cattr,
-                           bl->norm->Bl.width);
+                       print_otag(h, TAG_DT, "");
                        break;
                case ROFFT_BODY:
                        if (n->child == NULL) {
-                               print_otag(h, TAG_DD, "css?", cattr,
+                               print_otag(h, TAG_DD, "ss?",
                                    "width", "auto");
                                print_text(h, "\\ ");
                        } else
-                               print_otag(h, TAG_DD, "c", cattr);
+                               print_otag(h, TAG_DD, "");
                        break;
                default:
                        break;
@@ -783,13 +734,10 @@ mdoc_it_pre(MDOC_ARGS)
                case ROFFT_HEAD:
                        break;
                case ROFFT_BODY:
-                       if (bl->norm->Bl.comp)
-                               print_otag(h, TAG_TD, "csvt", cattr, 0);
-                       else
-                               print_otag(h, TAG_TD, "c", cattr);
+                       print_otag(h, TAG_TD, "");
                        break;
                default:
-                       print_otag(h, TAG_TR, "c", cattr);
+                       print_otag(h, TAG_TR, "");
                }
        default:
                break;
@@ -801,9 +749,9 @@ mdoc_it_pre(MDOC_ARGS)
 static int
 mdoc_bl_pre(MDOC_ARGS)
 {
+       char             cattr[28];
        struct tag      *t;
        struct mdoc_bl  *bl;
-       const char      *cattr;
        size_t           i;
        enum htmltag     elemtype;
 
@@ -826,7 +774,7 @@ mdoc_bl_pre(MDOC_ARGS)
 
                t = print_otag(h, TAG_COLGROUP, "");
                for (i = 0; i < bl->ncols - 1; i++)
-                       print_otag(h, TAG_COL, "sww", bl->cols[i]);
+                       print_otag(h, TAG_COL, "sw+w", bl->cols[i]);
                print_otag(h, TAG_COL, "swW", bl->cols[i]);
                print_tagq(h, t);
                return 0;
@@ -838,51 +786,55 @@ mdoc_bl_pre(MDOC_ARGS)
        switch (bl->type) {
        case LIST_bullet:
                elemtype = TAG_UL;
-               cattr = "Bl-bullet";
+               (void)strlcpy(cattr, "Bl-bullet", sizeof(cattr));
                break;
        case LIST_dash:
        case LIST_hyphen:
                elemtype = TAG_UL;
-               cattr = "Bl-dash";
+               (void)strlcpy(cattr, "Bl-dash", sizeof(cattr));
                break;
        case LIST_item:
                elemtype = TAG_UL;
-               cattr = "Bl-item";
+               (void)strlcpy(cattr, "Bl-item", sizeof(cattr));
                break;
        case LIST_enum:
                elemtype = TAG_OL;
-               cattr = "Bl-enum";
+               (void)strlcpy(cattr, "Bl-enum", sizeof(cattr));
                break;
        case LIST_diag:
                elemtype = TAG_DL;
-               cattr = "Bl-diag";
+               (void)strlcpy(cattr, "Bl-diag", sizeof(cattr));
                break;
        case LIST_hang:
                elemtype = TAG_DL;
-               cattr = "Bl-hang";
+               (void)strlcpy(cattr, "Bl-hang", sizeof(cattr));
                break;
        case LIST_inset:
                elemtype = TAG_DL;
-               cattr = "Bl-inset";
+               (void)strlcpy(cattr, "Bl-inset", sizeof(cattr));
                break;
        case LIST_ohang:
                elemtype = TAG_DL;
-               cattr = "Bl-ohang";
+               (void)strlcpy(cattr, "Bl-ohang", sizeof(cattr));
                break;
        case LIST_tag:
-               cattr = "Bl-tag";
                if (bl->offs)
-                       print_otag(h, TAG_DIV, "cswl", cattr, bl->offs);
-               print_otag(h, TAG_DL, "cswl", cattr, bl->width);
+                       print_otag(h, TAG_DIV, "c", "Bd-indent");
+               print_otag(h, TAG_DL, "c", bl->comp ?
+                   "Bl-tag Bl-compact" : "Bl-tag");
                return 1;
        case LIST_column:
                elemtype = TAG_TABLE;
-               cattr = "Bl-column";
+               (void)strlcpy(cattr, "Bl-column", sizeof(cattr));
                break;
        default:
                abort();
        }
-       print_otag(h, elemtype, "cswl", cattr, bl->offs);
+       if (bl->offs != NULL)
+               (void)strlcat(cattr, " Bd-indent", sizeof(cattr));
+       if (bl->comp)
+               (void)strlcat(cattr, " Bl-compact", sizeof(cattr));
+       print_otag(h, elemtype, "c", cattr);
        return 1;
 }
 
@@ -894,10 +846,17 @@ mdoc_ex_pre(MDOC_ARGS)
        return 1;
 }
 
+static int
+mdoc_st_pre(MDOC_ARGS)
+{
+       print_otag(h, TAG_SPAN, "cT", "St");
+       return 1;
+}
+
 static int
 mdoc_em_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_I, "c", "Em");
+       print_otag(h, TAG_I, "cT", "Em");
        return 1;
 }
 
@@ -907,7 +866,7 @@ mdoc_d1_pre(MDOC_ARGS)
        if (n->type != ROFFT_BLOCK)
                return 1;
 
-       print_otag(h, TAG_DIV, "c", "D1");
+       print_otag(h, TAG_DIV, "c", "Bd Bd-indent");
 
        if (n->tok == MDOC_Dl)
                print_otag(h, TAG_CODE, "c", "Li");
@@ -920,8 +879,8 @@ mdoc_sx_pre(MDOC_ARGS)
 {
        char    *id;
 
-       id = make_id(n);
-       print_otag(h, TAG_A, "chR", "Sx", id);
+       id = html_make_id(n, 0);
+       print_otag(h, TAG_A, "cThR", "Sx", id);
        free(id);
        return 1;
 }
@@ -929,7 +888,7 @@ mdoc_sx_pre(MDOC_ARGS)
 static int
 mdoc_bd_pre(MDOC_ARGS)
 {
-       int                      comp, offs, sv;
+       int                      comp, sv;
        struct roff_node        *nn;
 
        if (n->type == ROFFT_HEAD)
@@ -954,18 +913,9 @@ mdoc_bd_pre(MDOC_ARGS)
 
        if (n->norm->Bd.offs == NULL ||
            ! strcmp(n->norm->Bd.offs, "left"))
-               offs = 0;
-       else if ( ! strcmp(n->norm->Bd.offs, "indent"))
-               offs = INDENT;
-       else if ( ! strcmp(n->norm->Bd.offs, "indent-two"))
-               offs = INDENT * 2;
-       else
-               offs = -1;
-
-       if (offs == -1)
-               print_otag(h, TAG_DIV, "cswl", "Bd", n->norm->Bd.offs);
+               print_otag(h, TAG_DIV, "c", "Bd");
        else
-               print_otag(h, TAG_DIV, "cshl", "Bd", offs);
+               print_otag(h, TAG_DIV, "c", "Bd Bd-indent");
 
        if (n->norm->Bd.type != DISP_unfilled &&
            n->norm->Bd.type != DISP_literal)
@@ -987,9 +937,9 @@ mdoc_bd_pre(MDOC_ARGS)
                 * anyway, so don't sweat it.
                 */
                switch (nn->tok) {
+               case ROFF_br:
+               case ROFF_sp:
                case MDOC_Sm:
-               case MDOC_br:
-               case MDOC_sp:
                case MDOC_Bl:
                case MDOC_D1:
                case MDOC_Dl:
@@ -1017,14 +967,14 @@ mdoc_bd_pre(MDOC_ARGS)
 static int
 mdoc_pa_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_I, "c", "Pa");
+       print_otag(h, TAG_SPAN, "cT", "Pa");
        return 1;
 }
 
 static int
 mdoc_ad_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_I, "c", "Ad");
+       print_otag(h, TAG_SPAN, "c", "Ad");
        return 1;
 }
 
@@ -1048,7 +998,7 @@ mdoc_an_pre(MDOC_ARGS)
        if (n->sec == SEC_AUTHORS && ! (h->flags & HTML_NOSPLIT))
                h->flags |= HTML_SPLIT;
 
-       print_otag(h, TAG_SPAN, "c", "An");
+       print_otag(h, TAG_SPAN, "cT", "An");
        return 1;
 }
 
@@ -1056,28 +1006,46 @@ static int
 mdoc_cd_pre(MDOC_ARGS)
 {
        synopsis_pre(h, n);
-       print_otag(h, TAG_B, "c", "Cd");
+       print_otag(h, TAG_CODE, "cT", "Cd");
        return 1;
 }
 
 static int
 mdoc_dv_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_CODE, "c", "Dv");
+       char    *id;
+
+       if ((id = cond_id(n)) != NULL)
+               print_otag(h, TAG_A, "chR", "permalink", id);
+       print_otag(h, TAG_CODE, "cTi", "Dv", id);
        return 1;
 }
 
 static int
 mdoc_ev_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_CODE, "c", "Ev");
+       char    *id;
+
+       if ((id = cond_id(n)) != NULL)
+               print_otag(h, TAG_A, "chR", "permalink", id);
+       print_otag(h, TAG_CODE, "cTi", "Ev", id);
        return 1;
 }
 
 static int
 mdoc_er_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_CODE, "c", "Er");
+       char    *id;
+
+       id = n->sec == SEC_ERRORS &&
+           (n->parent->tok == MDOC_It ||
+            (n->parent->tok == MDOC_Bq &&
+             n->parent->parent->parent->tok == MDOC_It)) ?
+           html_make_id(n, 1) : NULL;
+
+       if (id != NULL)
+               print_otag(h, TAG_A, "chR", "permalink", id);
+       print_otag(h, TAG_CODE, "cTi", "Er", id);
        return 1;
 }
 
@@ -1088,12 +1056,12 @@ mdoc_fa_pre(MDOC_ARGS)
        struct tag              *t;
 
        if (n->parent->tok != MDOC_Fo) {
-               print_otag(h, TAG_I, "c", "Fa");
+               print_otag(h, TAG_VAR, "cT", "Fa");
                return 1;
        }
 
        for (nn = n->child; nn; nn = nn->next) {
-               t = print_otag(h, TAG_I, "c", "Fa");
+               t = print_otag(h, TAG_VAR, "cT", "Fa");
                print_text(h, nn->string);
                print_tagq(h, t);
                if (nn->next) {
@@ -1124,11 +1092,11 @@ mdoc_fd_pre(MDOC_ARGS)
        assert(n->type == ROFFT_TEXT);
 
        if (strcmp(n->string, "#include")) {
-               print_otag(h, TAG_B, "c", "Fd");
+               print_otag(h, TAG_CODE, "cT", "Fd");
                return 1;
        }
 
-       print_otag(h, TAG_B, "c", "In");
+       print_otag(h, TAG_CODE, "cT", "In");
        print_text(h, n->string);
 
        if (NULL != (n = n->next)) {
@@ -1142,10 +1110,10 @@ mdoc_fd_pre(MDOC_ARGS)
                        cp = strchr(buf, '\0') - 1;
                        if (cp >= buf && (*cp == '>' || *cp == '"'))
                                *cp = '\0';
-                       t = print_otag(h, TAG_A, "chI", "In", buf);
+                       t = print_otag(h, TAG_A, "cThI", "In", buf);
                        free(buf);
                } else
-                       t = print_otag(h, TAG_A, "c", "In");
+                       t = print_otag(h, TAG_A, "cT", "In");
 
                print_text(h, n->string);
                print_tagq(h, t);
@@ -1172,7 +1140,7 @@ mdoc_vt_pre(MDOC_ARGS)
        } else if (n->type == ROFFT_HEAD)
                return 0;
 
-       print_otag(h, TAG_I, "c", "Vt");
+       print_otag(h, TAG_VAR, "cT", "Vt");
        return 1;
 }
 
@@ -1180,7 +1148,7 @@ static int
 mdoc_ft_pre(MDOC_ARGS)
 {
        synopsis_pre(h, n);
-       print_otag(h, TAG_I, "c", "Ft");
+       print_otag(h, TAG_VAR, "cT", "Ft");
        return 1;
 }
 
@@ -1201,7 +1169,7 @@ mdoc_fn_pre(MDOC_ARGS)
 
        ep = strchr(sp, ' ');
        if (NULL != ep) {
-               t = print_otag(h, TAG_I, "c", "Ft");
+               t = print_otag(h, TAG_VAR, "cT", "Ft");
 
                while (ep) {
                        sz = MIN((int)(ep - sp), BUFSIZ - 1);
@@ -1214,7 +1182,7 @@ mdoc_fn_pre(MDOC_ARGS)
                print_tagq(h, t);
        }
 
-       t = print_otag(h, TAG_B, "c", "Fn");
+       t = print_otag(h, TAG_CODE, "cT", "Fn");
 
        if (sp)
                print_text(h, sp);
@@ -1227,10 +1195,10 @@ mdoc_fn_pre(MDOC_ARGS)
 
        for (n = n->child->next; n; n = n->next) {
                if (NODE_SYNPRETTY & n->flags)
-                       t = print_otag(h, TAG_I, "css?", "Fa",
+                       t = print_otag(h, TAG_VAR, "cTss?", "Fa",
                            "white-space", "nowrap");
                else
-                       t = print_otag(h, TAG_I, "c", "Fa");
+                       t = print_otag(h, TAG_VAR, "cT", "Fa");
                print_text(h, n->string);
                print_tagq(h, t);
                if (n->next) {
@@ -1282,48 +1250,40 @@ mdoc_pp_pre(MDOC_ARGS)
        return 0;
 }
 
-static int
-mdoc_sp_pre(MDOC_ARGS)
-{
-       struct roffsu    su;
-
-       SCALE_VS_INIT(&su, 1);
-
-       if (MDOC_sp == n->tok) {
-               if (NULL != (n = n->child)) {
-                       if ( ! a2roffsu(n->string, &su, SCALE_VS))
-                               su.scale = 1.0;
-                       else if (su.scale < 0.0)
-                               su.scale = 0.0;
-               }
-       } else
-               su.scale = 0.0;
-
-       print_otag(h, TAG_DIV, "suh", &su);
-
-       /* So the div isn't empty: */
-       print_text(h, "\\~");
-
-       return 0;
-
-}
-
 static int
 mdoc_lk_pre(MDOC_ARGS)
 {
-       if (NULL == (n = n->child))
-               return 0;
-
-       assert(n->type == ROFFT_TEXT);
-
-       print_otag(h, TAG_A, "ch", "Lk", n->string);
+       const struct roff_node *link, *descr, *punct;
+       struct tag      *t;
 
-       if (NULL == n->next)
-               print_text(h, n->string);
+       if ((link = n->child) == NULL)
+               return 0;
 
-       for (n = n->next; n; n = n->next)
-               print_text(h, n->string);
+       /* Find beginning of trailing punctuation. */
+       punct = n->last;
+       while (punct != link && punct->flags & NODE_DELIMC)
+               punct = punct->prev;
+       punct = punct->next;
+
+       /* Link target and link text. */
+       descr = link->next;
+       if (descr == punct)
+               descr = link;  /* no text */
+       t = print_otag(h, TAG_A, "cTh", "Lk", link->string);
+       do {
+               if (descr->flags & (NODE_DELIMC | NODE_DELIMO))
+                       h->flags |= HTML_NOSPACE;
+               print_text(h, descr->string);
+               descr = descr->next;
+       } while (descr != punct);
+       print_tagq(h, t);
 
+       /* Trailing punctuation. */
+       while (punct != NULL) {
+               h->flags |= HTML_NOSPACE;
+               print_text(h, punct->string);
+               punct = punct->next;
+       }
        return 0;
 }
 
@@ -1337,7 +1297,7 @@ mdoc_mt_pre(MDOC_ARGS)
                assert(n->type == ROFFT_TEXT);
 
                mandoc_asprintf(&cp, "mailto:%s", n->string);
-               t = print_otag(h, TAG_A, "ch", "Mt", cp);
+               t = print_otag(h, TAG_A, "cTh", "Mt", cp);
                print_text(h, n->string);
                print_tagq(h, t);
                free(cp);
@@ -1365,7 +1325,7 @@ mdoc_fo_pre(MDOC_ARGS)
                return 0;
 
        assert(n->child->string);
-       t = print_otag(h, TAG_B, "c", "Fn");
+       t = print_otag(h, TAG_CODE, "cT", "Fn");
        print_text(h, n->child->string);
        print_tagq(h, t);
        return 0;
@@ -1389,7 +1349,7 @@ mdoc_in_pre(MDOC_ARGS)
        struct tag      *t;
 
        synopsis_pre(h, n);
-       print_otag(h, TAG_B, "c", "In");
+       print_otag(h, TAG_CODE, "cT", "In");
 
        /*
         * The first argument of the `In' gets special treatment as
@@ -1408,9 +1368,9 @@ mdoc_in_pre(MDOC_ARGS)
                assert(n->type == ROFFT_TEXT);
 
                if (h->base_includes)
-                       t = print_otag(h, TAG_A, "chI", "In", n->string);
+                       t = print_otag(h, TAG_A, "cThI", "In", n->string);
                else
-                       t = print_otag(h, TAG_A, "c", "In");
+                       t = print_otag(h, TAG_A, "cT", "In");
                print_text(h, n->string);
                print_tagq(h, t);
 
@@ -1431,14 +1391,18 @@ mdoc_in_pre(MDOC_ARGS)
 static int
 mdoc_ic_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_B, "c", "Ic");
+       char    *id;
+
+       if ((id = cond_id(n)) != NULL)
+               print_otag(h, TAG_A, "chR", "permalink", id);
+       print_otag(h, TAG_CODE, "cTi", "Ic", id);
        return 1;
 }
 
 static int
 mdoc_va_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_I, "c", "Va");
+       print_otag(h, TAG_VAR, "cT", "Va");
        return 1;
 }
 
@@ -1463,27 +1427,27 @@ mdoc_bf_pre(MDOC_ARGS)
                return 1;
 
        if (FONT_Em == n->norm->Bf.font)
-               cattr = "Em";
+               cattr = "Bf Em";
        else if (FONT_Sy == n->norm->Bf.font)
-               cattr = "Sy";
+               cattr = "Bf Sy";
        else if (FONT_Li == n->norm->Bf.font)
-               cattr = "Li";
+               cattr = "Bf Li";
        else
-               cattr = "none";
-
-       /*
-        * We want this to be inline-formatted, but needs to be div to
-        * accept block children.
-        */
+               cattr = "Bf No";
 
-       print_otag(h, TAG_DIV, "css?hl", cattr, "display", "inline", 1);
+       /* Cannot use TAG_SPAN because it may contain blocks. */
+       print_otag(h, TAG_DIV, "cshl", cattr, 1);
        return 1;
 }
 
 static int
 mdoc_ms_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_B, "c", "Ms");
+       char *id;
+
+       if ((id = cond_id(n)) != NULL)
+               print_otag(h, TAG_A, "chR", "permalink", id);
+       print_otag(h, TAG_SPAN, "cTi", "Ms", id);
        return 1;
 }
 
@@ -1512,28 +1476,36 @@ mdoc_rs_pre(MDOC_ARGS)
        if (n->prev && SEC_SEE_ALSO == n->sec)
                print_paragraph(h);
 
-       print_otag(h, TAG_CITE, "c", "Rs");
+       print_otag(h, TAG_CITE, "cT", "Rs");
        return 1;
 }
 
 static int
 mdoc_no_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_SPAN, "c", "No");
+       char *id;
+
+       if ((id = cond_id(n)) != NULL)
+               print_otag(h, TAG_A, "chR", "permalink", id);
+       print_otag(h, TAG_SPAN, "ci", "No", id);
        return 1;
 }
 
 static int
 mdoc_li_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_CODE, "c", "Li");
+       char    *id;
+
+       if ((id = cond_id(n)) != NULL)
+               print_otag(h, TAG_A, "chR", "permalink", id);
+       print_otag(h, TAG_CODE, "ci", "Li", id);
        return 1;
 }
 
 static int
 mdoc_sy_pre(MDOC_ARGS)
 {
-       print_otag(h, TAG_B, "c", "Sy");
+       print_otag(h, TAG_B, "cT", "Sy");
        return 1;
 }
 
@@ -1543,7 +1515,7 @@ mdoc_lb_pre(MDOC_ARGS)
        if (SEC_LIBRARY == n->sec && NODE_LINE & n->flags && n->prev)
                print_otag(h, TAG_BR, "");
 
-       print_otag(h, TAG_SPAN, "c", "Lb");
+       print_otag(h, TAG_SPAN, "cT", "Lb");
        return 1;
 }
 
@@ -1682,7 +1654,8 @@ mdoc_quote_pre(MDOC_ARGS)
        case MDOC_Op:
                print_text(h, "\\(lB");
                h->flags |= HTML_NOSPACE;
-               print_otag(h, TAG_SPAN, "c", "Op");
+               /* Cannot use TAG_SPAN because it may contain blocks. */
+               print_otag(h, TAG_IDIV, "c", "Op");
                break;
        case MDOC_En:
                if (NULL == n->norm->Es ||