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List: mandoc-tech
Subject: Re: eqn(7): equations with no output shouldn't emit <math>
From: Ingo Schwarze <schwarze () usta ! de>
Date: 2017-07-14 13:35:32
Message-ID: 20170714133532.GC32226 () athene ! usta ! de
[Download RAW message or body]
Hi Anthony,
Anthony J. Bentley wrote on Fri, Jul 14, 2017 at 12:34:59AM -0600:
> It's very common in the libGL manuals to set delimeters early in the
> document:
>
> .EQ
> delim $$
> .EN
>
> In -Thtml, this becomes:
>
> <math class="eqn"><mrow></mrow></math>
>
> Which results in unneeded vertical space in the output.
Fixed with the following commit.
Thanks for reporting,
Ingo
Log Message:
-----------
do not print <math class="eqn"><mrow></mrow></math> for empty .EQ;
issue reported by bentley@
Modified Files:
--------------
mandoc:
eqn_html.c
Revision Data
-------------
Index: eqn_html.c
===================================================================
RCS file: /home/cvs/mandoc/mandoc/eqn_html.c,v
retrieving revision 1.16
retrieving revision 1.17
diff -Leqn_html.c -Leqn_html.c -u -p -r1.16 -r1.17
--- eqn_html.c
+++ eqn_html.c
@@ -231,6 +231,9 @@ print_eqn(struct html *p, const struct e
{
struct tag *t;
+ if (bp->first == NULL)
+ return;
+
t = print_otag(p, TAG_MATH, "c", "eqn");
p->flags |= HTML_NONOSPACE;
--
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