Add regression test for commonmark#517.

jgm · jgm · commit 549a71380800 · 2019-03-25T22:06:55.000-07:00
diff --git a/test/regression.txt b/test/regression.txt
@@ -129,3 +129,19 @@ Issue commonmark#526 - unescaped ( in link title
 .
 <p>[link](url ((title))</p>
 ````````````````````````````````
+
+Issue commonamrk#517 - script, pre, style close tag without
+opener.
+
+```````````````````````````````` example
+</script>
+
+</pre>
+
+</style>
+.
+</script>
+</pre>
+</style>
+````````````````````````````````
+
