- $quoted =~ s/\\(.)/$1/g if ($quote eq '"');
- $quoted =~ s/\\([\\'])/$1/g if ( $PERL_SINGLE_QUOTE && $quote eq "'");
+ if (defined $quote) {
+ $quoted =~ s/\\(.)/$1/g if ($quote eq '"');
+ $quoted =~ s/\\([\\'])/$1/g if ( $PERL_SINGLE_QUOTE && $quote eq "'");
+ }