#!/usr/bin/perl use 5.014; ## it wouldn't work for lower version use Readonly; Readonly my $comma => ","; my $str = <<'_STR_'; 06.02.2013 12.24.01:909 5807225321 INFO {EXT:httpadapter:17:14:}[0]RULEZ HTTPADAPTER,msisdn:637584930382,ud:Pan,trxtime:20130206122401 ResponseDeltaTime:31 ms ResponseCode:200 ResponseBody:OK _STR_ my %data_filter = ( '1_first_date_format' => sub { if ( $_[0] =~ /(\d{2}\.\d{2}\.\d{4})/ ) { my $format_date = $1; $format_date =~ s/\./-/g; return ( $format_date, $comma ); } }, '2_msisdn' => sub { if ( $_[0] =~ /msisdn:(.+)/ ) { return ( $1, $comma ); } }, '3_ud' => sub { if ( $_[0] =~ /ud:(.+)/ ) { return ( $1, $comma ); } }, '4_trxtime' => sub { if ( $_[0] =~ /trxtime:(\d{8}).+Code:(\d+)/sm ) { my ( $format_date, $code ) = ( $1, $2 ); $format_date =~ s/(\d{4})(\d{2})(\d{2})/$1-$2-$3/; return ( $format_date, $comma, $code ); } }, ); for my $key ( sort keys %data_filter ) { for ( split /,/, $str ) { print $data_filter{$key}->($_); } }