Implement horizontal and vertical alignment of tbl(7) cell content

in -T html output.  This does not handle spanned cells yet.
Missing feature reported by Pali dot Rohar at gmail dot com.

diff --git a/TODO b/TODO
index 1bd006dd1233e601d71b55e2b35399c6fde3aa91..52698ea0dcafd6a47716333347acb771fc1a4b5e 100644 (file)
--- a/TODO
+++ b/TODO
@@ -1,6 +1,6 @@
 ************************************************************************
 * Official mandoc TODO.
-* $Id: TODO,v 1.274 2018/10/25 21:23:52 schwarze Exp $
+* $Id: TODO,v 1.275 2018/11/24 23:03:18 schwarze Exp $
 ************************************************************************
 
 Many issues are annotated for difficulty as follows:
@@ -195,10 +195,6 @@ are mere guesses, and some may be wrong.
   suggested by bentley@  Tue, 14 Oct 2014 04:10:55 -0600
   loc *  exist **  algo *  size *  imp **
 
-- implement horizontal and vertical alignment in HTML output
-  pali dot rohar at gmail dot com 16 Jul 2018 13:03:35 +0200
-  loc *  exist *  algo *  size *  imp ***
-
 - implement cell spanning in HTML output
   pali dot rohar at gmail dot com 16 Jul 2018 13:03:35 +0200
   loc *  exist *  algo **  size **  imp **

diff --git a/mandoc.css b/mandoc.css
index a8f50769f493a2c60fbabbd13273da5ff05093e5..a32d92e28abcbd24d8a85676769013e624ff7c51 100644 (file)
--- a/mandoc.css
+++ b/mandoc.css
@@ -1,4 +1,4 @@
-/* $Id: mandoc.css,v 1.37 2018/08/27 23:13:44 schwarze Exp $ */
+/* $Id: mandoc.css,v 1.38 2018/11/24 23:03:18 schwarze Exp $ */
 /*
  * Standard style sheet for mandoc(1) -Thtml and man.cgi(8).
  */
@@ -9,7 +9,7 @@ html {          max-width: 65em; }
 body {         font-family: Helvetica,Arial,sans-serif; }
 table {                margin-top: 0em;
                margin-bottom: 0em; }
-td {           vertical-align: top; }
+td {           vertical-align: middle; }
 ul, ol, dl {   margin-top: 0em;
                margin-bottom: 0em; }
 li, dt {       margin-top: 1em; }

diff --git a/tbl_html.c b/tbl_html.c
index b87804fda354dcf57dba84a3d79baa2446f66e79..1080ffdfebe5ddd704f4dbf28d7f85e3a86ac710 100644 (file)
--- a/tbl_html.c
+++ b/tbl_html.c
@@ -1,7 +1,7 @@
-/*     $Id: tbl_html.c,v 1.24 2018/06/25 13:45:57 schwarze Exp $ */
+/*     $Id: tbl_html.c,v 1.25 2018/11/24 23:03:18 schwarze Exp $ */
 /*
  * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2014, 2015, 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
@@ -103,6 +103,7 @@ print_tbl(struct html *h, const struct tbl_span *sp)
 {
        const struct tbl_dat *dp;
        struct tag      *tt;
+       const char      *halign, *valign;
        int              ic;
 
        /* Inhibit printing of spaces: we do padding ourselves. */
@@ -126,10 +127,40 @@ print_tbl(struct html *h, const struct tbl_span *sp)
                dp = sp->first;
                for (ic = 0; ic < sp->opts->cols; ic++) {
                        print_stagq(h, tt);
-                       print_otag(h, TAG_TD, "");
-
-                       if (dp == NULL || dp->layout->col > ic)
+                       if (dp == NULL || dp->layout->col > ic) {
+                               print_otag(h, TAG_TD, "");
                                continue;
+                       }
+                       switch (dp->layout->pos) {
+                       case TBL_CELL_CENTRE:
+                               halign = "center";
+                               break;
+                       case TBL_CELL_RIGHT:
+                       case TBL_CELL_NUMBER:
+                               halign = "right";
+                               break;
+                       default:
+                               halign = NULL;
+                               break;
+                       }
+                       if (dp->layout->flags & TBL_CELL_TALIGN)
+                               valign = "top";
+                       else if (dp->layout->flags & TBL_CELL_BALIGN)
+                               valign = "bottom";
+                       else
+                               valign = NULL;
+                       if (halign == NULL && valign == NULL)
+                               print_otag(h, TAG_TD, "");
+                       else if (halign == NULL)
+                               print_otag(h, TAG_TD, "s",
+                                   "vertical-align", valign);
+                       else if (valign == NULL)
+                               print_otag(h, TAG_TD, "s",
+                                   "text-align", halign);
+                       else
+                               print_otag(h, TAG_TD, "ss",
+                                   "vertical-align", valign,
+                                   "text-align", halign);
                        if (dp->layout->pos != TBL_CELL_DOWN)
                                if (dp->string != NULL)
                                        print_text(h, dp->string);
@@ -148,5 +179,4 @@ print_tbl(struct html *h, const struct tbl_span *sp)
                h->tbl.cols = NULL;
                print_tblclose(h);
        }
-
 }