Help for this page
m[^ ( [^|]+ ) \| ]x and $current{ $1 } = $_ while <CURRENT>; ... if( m[^ ( [^|]+ ) \| ]x and exists $current{ $1 } ) {
(my $e=index($_,"|"))>0 and $current{substr($_,0,$e)}=$_ while <CURREN +T>; ... if((my $e=index($_,"|"))>0 and exists $current{substr($_,0,$e)) {