ported fixes from Mojolicious

[catagits/DOM-Tiny.git] / lib / DOM / Tiny / _CSS.pm

diff --git a/lib/DOM/Tiny/_CSS.pm b/lib/DOM/Tiny/_CSS.pm
index 1e890dc..91a7705 100644 (file)
--- a/lib/DOM/Tiny/_CSS.pm
+++ b/lib/DOM/Tiny/_CSS.pm
@@ -166,7 +166,7 @@ sub _equation {
   # "n", "4n", "+4n", "-4n", "n+1", "4n-1", "+4n-1" (and other variations)
   return [0, 0]
     unless $equation =~ /^\s*((?:\+|-)?(?:\d+)?)?n\s*((?:\+|-)\s*\d+)?\s*$/i;
-  return [$1 eq '-' ? -1 : $1 eq '' ? 1 : $1, join('', split(' ', $2 || 0))];
+  return [$1 eq '-' ? -1 : !length $1 ? 1 : $1, join('', split(' ', $2 || 0))];
 }
 
 sub _match {