CX89 Apple tree
CX89 Sailing boat
CX89 Apple tree
AC75 Apple candy
CX89 Sailing boat
#!/usr/bin/perl --
use strict;
use warnings;
use diagnostics;
use Text::CSV;
use Text::CSV_XS qw( );
#main
{
use autodie 2.06;
open( my $fh_in, '<', 'data.txt' );
my $col_rules = [
[
[ 1 => eq => 'Apple'],
[ 0 => eq => 'CX89'],
[ "%s %s tree\n" => [ 0, 1 ] ],
],
[
[ 1 => eq => 'Sailing'],
[ 0 => eq => 'CX89'],
[ "%s %s boat\n" => [ 0, 1 ] ],
],
[
[ 0 => ne => 'CX89'],
[ 1 => eq => 'Apple'],
[ 1 => ne => 'Sailing'],
[ "%s %s candy\n" => [ 0, 1 ] ],
],
];
process_rules( $col_rules, $fh_in, \*STDOUT );
}
sub process_rules {
my ( $rules, $in, $out ) = @_;
my $csv_in = Text::CSV->new( { sep_char => ',', eol => $/ } )
or die Text::CSV->error_diag();
my $csv_out = Text::CSV->new( { eol => $/ } )
or die Text::CSV->error_diag();
while ( my $row = $csv_in->getline($in) ) {
my $rulematch = 0;
for my $ruleset (@$rules) {
last if $rulematch;
my $ruleset_match = 0;
for my $rule ( @$ruleset[0 .. $#$ruleset ] ) {
my ( $ix, $op, $val ) = @$rule;
$ruleset_match++ if $op eq 'eq' and $val eq $row->[$ix];
$ruleset_match++ if $op eq 'ne' and $val ne $row->[$ix];
}
#~ warn '$rulematch ',$rulematch;
#~ warn '$ruleset_match ', $ruleset_match ;
#~ warn '$#$ruleset ', $#$ruleset ;
if ( $ruleset_match == $#$ruleset ) {
$rulematch++;
my ( $printf, $indices ) = @{ $ruleset->[-1] };
$out->printf( $printf, (@$row)[@$indices] );
}
}
}
}
__DATA__
"CX89",Apple
"CX89",Sailing
"CX89",Apple
"AC75",Apple
"CX89",Sailing