Make filterByRegexp more tolerant to different configurations.

 * filterByRegexp shouldn’t crash when list is undefined
 * also be more tolerant for nonexistent some RH-specific functions

Fixes #91.

1 files changed, 1 insertions, 1 deletions

diff --git a/data/lib/util.js b/data/lib/util.js
index abf8824..6ed131e 100644
--- a/data/lib/util.js
+++ b/data/lib/util.js
@@ -294,7 +294,7 @@ function removeCSVValue(str, value) {
  */
 function filterByRegexp(list, chosingMark) {
   var chosenPair = [];
-  if (list.length > 0) {
+  if (list && list.length > 0) {
     chosenPair = list.filter(function (pair) {
       return new RegExp(pair.regexp, "i").test(chosingMark);
     });