-.\" $Id: mandoc_html.3,v 1.21 2020/04/18 20:44:09 schwarze Exp $
+.\" $Id: mandoc_html.3,v 1.23 2020/04/24 13:13:06 schwarze Exp $
.\"
.\" Copyright (c) 2014, 2017, 2018 Ingo Schwarze <schwarze@openbsd.org>
.\"
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: April 18 2020 $
+.Dd $Mdocdate: April 24 2020 $
.Dt MANDOC_HTML 3
.Os
.Sh NAME
arguments, the attribute name and the value.
The name must not be
.Dv NULL .
+.It Cm s
+Print a
+.Cm style
+attribute.
+If present, it must be the last format letter.
+It requires two
+.Va char *
+arguments.
+The first is the name of the style property, the second its value.
+The name must not be
+.Dv NULL .
+The
+.Cm s
+.Ar fmt
+letter can be repeated, each repetition requiring an additional pair of
+.Va char *
+arguments.
.El
.Pp
.Fn print_otag
.Fa unique
argument is non-zero, deduplication is performed by appending an
underscore and a decimal integer, if necessary.
+If the
+.Fa unique
+argument is 1, this is assumed to be the first call for this tag
+at this location, typically for use by
+.Dv NODE_ID ,
+so the integer is incremented before use.
+If the
+.Fa unique
+argument is 2, this is ssumed to be the second call for this tag
+at this location, typically for use by
+.Dv NODE_HREF ,
+so the existing integer, if any, is used without incrementing it.
.Pp
The function
.Fn print_otag_id
.Fn html_make_id
and
.Fn print_otag ,
-fixing the
+automatically chosing the
.Fa unique
-argument to 1 and the
+argument appropriately and setting the
.Fa fmt
arguments to
.Qq chR
if
.Fa n
lacks text data to create the attribute from.
-If the
-.Fa unique
-argument is 0, the caller is responsible for
+The caller is responsible for
.Xr free 3 Ns ing
the returned string after using it.
-If the
-.Fa unique
-argument is non-zero, the
-.Va id_unique
-ohash table is used for de-duplication and owns the returned string.
-In this case, it will be freed automatically by
-.Fn html_reset
-or
-.Fn html_free .
.Pp
In case of
.Xr malloc 3