[Koha-patches] [PATCH] Bug 12593 - search facets die with regex error if biblio has square brackets in fields

[Dobrica Pavlinusic]

It's quite common to have [something] within facet data, and it produces following error:

Unmatched [ in regex; marked by <-- HERE in m/^[ <-- HERE

This problem was intoduced in Bug 12151 but is trivial to fix.
---
 C4/Search.pm |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/C4/Search.pm b/C4/Search.pm
index 1b5c6fa..219de1e 100644
--- a/C4/Search.pm
+++ b/C4/Search.pm
@@ -532,7 +532,7 @@ sub getRecords {
                                 foreach my $field (@fields) {
                                     my $data = $field->as_string( $subfield_letters, $facet->{sep} );
 
-                                    unless ( grep { /^$data$/ } @used_datas ) {
+                                    unless ( grep { /^\Q$data\E$/ } @used_datas ) {
                                         push @used_datas, $data;
                                         $facets_counter->{ $facet->{idx} }->{$data}++;
                                     }
-- 
1.7.2.5