If the layout or data of an individual cell in a tbl(7) contains

only "_", "-", or "=", requesting a horizontal line to be drawn
across the middle of the cell, print <hr/> in that cell in HTML
output.

That is arguably slightly ugly because HTML 5 regards <hr/> as
semantic markup, meaning "thematic break".  If somebody knowns
a better way to render a horizontal line across the middle of a
table cell with pure HTML and CSS, and without implying a specific
meaning, please tell me.

Missing feature reported by <Oliver dot Corff at email dot de>.

diff --git a/usr.bin/mandoc/html.c b/usr.bin/mandoc/html.c
index 799d065..1e996da 100644 (file)
--- a/usr.bin/mandoc/html.c
+++ b/usr.bin/mandoc/html.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: html.c,v 1.145 2021/08/10 12:36:42 schwarze Exp $ */
+/* $OpenBSD: html.c,v 1.146 2021/09/09 14:45:18 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011-2015, 2017-2021 Ingo Schwarze <schwarze@openbsd.org>
@@ -89,6 +89,7 @@ static        const struct htmldata htmltags[TAG_MAX] = {
        {"span",        HTML_INPHRASE | HTML_TOPHRASE},
        {"var",         HTML_INPHRASE | HTML_TOPHRASE},
        {"br",          HTML_INPHRASE | HTML_NOSTACK | HTML_NLALL},
+       {"hr",          HTML_INPHRASE | HTML_NOSTACK},
        {"mark",        HTML_INPHRASE },
        {"math",        HTML_INPHRASE | HTML_NLALL | HTML_INDENT},
        {"mrow",        0},

diff --git a/usr.bin/mandoc/html.h b/usr.bin/mandoc/html.h
index dcce339..06ba51e 100644 (file)
--- a/usr.bin/mandoc/html.h
+++ b/usr.bin/mandoc/html.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: html.h,v 1.70 2020/04/18 20:28:46 schwarze Exp $ */
+/* $OpenBSD: html.h,v 1.71 2021/09/09 14:45:18 schwarze Exp $ */
 /*
  * Copyright (c) 2017, 2018, 2019, 2020 Ingo Schwarze <schwarze@openbsd.org>
  * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
@@ -51,6 +51,7 @@ enum  htmltag {
        TAG_SPAN,
        TAG_VAR,
        TAG_BR,
+       TAG_HR,
        TAG_MARK,
        TAG_MATH,
        TAG_MROW,

diff --git a/usr.bin/mandoc/tbl_html.c b/usr.bin/mandoc/tbl_html.c
index d92a091..acad113 100644 (file)
--- a/usr.bin/mandoc/tbl_html.c
+++ b/usr.bin/mandoc/tbl_html.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: tbl_html.c,v 1.31 2021/08/10 12:36:42 schwarze Exp $ */
+/*     $OpenBSD: tbl_html.c,v 1.32 2021/09/09 14:45:18 schwarze Exp $ */
 /*
  * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2014,2015,2017,2018,2021 Ingo Schwarze <schwarze@openbsd.org>
@@ -239,7 +239,12 @@ print_tbl(struct html *h, const struct tbl_span *sp)
                    "vertical-align", valign,
                    "text-align", halign,
                    "border-right-style", rborder);
-               if (dp->string != NULL) {
+               if (dp->layout->pos == TBL_CELL_HORIZ ||
+                   dp->layout->pos == TBL_CELL_DHORIZ ||
+                   dp->pos == TBL_DATA_HORIZ ||
+                   dp->pos == TBL_DATA_DHORIZ)
+                       print_otag(h, TAG_HR, "");
+               else if (dp->string != NULL) {
                        save_font = h->metac;
                        html_setfont(h, dp->layout->font);
                        if (dp->layout->pos == TBL_CELL_LONG)