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authorschwarze <schwarze@openbsd.org>2017-07-14 13:32:27 +0000
committerschwarze <schwarze@openbsd.org>2017-07-14 13:32:27 +0000
commit9884404ad1bf6f249902b1f2f366d17bc0ba41f0 (patch)
tree0c5b85d33a99858e30afc8abdd3a79d3432aee61
parentDo not mix Perl read() with sysread(). Data could get stuck in the (diff)
downloadwireguard-openbsd-9884404ad1bf6f249902b1f2f366d17bc0ba41f0.tar.xz
wireguard-openbsd-9884404ad1bf6f249902b1f2f366d17bc0ba41f0.zip
do not print <math class="eqn"><mrow></mrow></math> for empty .EQ;
issue reported by bentley@
-rw-r--r--usr.bin/mandoc/eqn_html.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/usr.bin/mandoc/eqn_html.c b/usr.bin/mandoc/eqn_html.c
index b725bfc46c6..a0d3ecb0296 100644
--- a/usr.bin/mandoc/eqn_html.c
+++ b/usr.bin/mandoc/eqn_html.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: eqn_html.c,v 1.12 2017/07/08 14:51:01 schwarze Exp $ */
+/* $OpenBSD: eqn_html.c,v 1.13 2017/07/14 13:32:27 schwarze Exp $ */
/*
* Copyright (c) 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -229,6 +229,9 @@ print_eqn(struct html *p, const struct eqn_box *bp)
{
struct tag *t;
+ if (bp->first == NULL)
+ return;
+
t = print_otag(p, TAG_MATH, "c", "eqn");
p->flags |= HTML_NONOSPACE;