# we use IsAlpha unicode definition, to deal correctly with diacritics.
# otherwise, a French word like "leçon" woudl be split into "le" "çon", "le"
# is a stopword, we'd get "çon" and wouldn't find anything...
- foreach ( keys %{ C4::Context->stopwords } ) {
- next if ( $_ =~ /(and|or|not)/ ); # don't remove operators
- if ( $operand =~
- /(\P{IsAlpha}$_\P{IsAlpha}|^$_\P{IsAlpha}|\P{IsAlpha}$_$|^$_$)/ )
- {
- $operand =~ s/\P{IsAlpha}$_\P{IsAlpha}/ /gi;
- $operand =~ s/^$_\P{IsAlpha}/ /gi;
- $operand =~ s/\P{IsAlpha}$_$/ /gi;
- $operand =~ s/$1//gi;
- push @stopwords_removed, $_;
- }
- }
- }
+ foreach ( keys %{ C4::Context->stopwords } ) {
+ next if ( $_ =~ /(and|or|not)/ ); # don't remove operators
+ if ( my ($matched) = ($operand =~
+ /(\P{IsAlnum}\Q$_\E\P{IsAlnum}|^\Q$_\E\P{IsAlnum}|\P{IsAlnum}\Q$_\E$|^\Q$_\E$)/gi) )
+ {
+ $operand =~ s/\Q$matched\E/ /gi;
+ push @stopwords_removed, $_;
+ }
+ }
+ }
return ( $operand, \@stopwords_removed );
}