+ if ( $3 ) {
+ if ( $3 eq 'VisaMC' ) {
+ #avoid posix regexes for portability
+ push @search, " ( substring(payinfo from 1 for 1) = '4' ".
+ " OR substring(payinfo from 1 for 2) = '51' ".
+ " OR substring(payinfo from 1 for 2) = '52' ".
+ " OR substring(payinfo from 1 for 2) = '53' ".
+ " OR substring(payinfo from 1 for 2) = '54' ".
+ " OR substring(payinfo from 1 for 2) = '54' ".
+ " OR substring(payinfo from 1 for 2) = '55' ".
+ " ) ";
+ } elsif ( $3 eq 'Amex' ) {
+ push @search, " ( substring(payinfo from 1 for 2 ) = '34' ".
+ " OR substring(payinfo from 1 for 2 ) = '37' ".
+ " ) ";
+ } elsif ( $3 eq 'Discover' ) {
+ push @search, " substring(payinfo from 1 for 4 ) = '6011' ";
+ } else {
+ die "unknown card type $3";
+ }
+ }