Re: finding the field number of a matching pattern in perl

[remiah]

anonymous's split : the better ones. mine ... not so good.

use strict;
use warnings;
use Data::Dumper;
use 5.010;

my $data = "Region day Item volume Month district piece amount day ...
+ one more test";
print "$data\n";

my (@sep);
push @sep, 0;
push @sep, $-[0] while( $data =~ /\s+/g );
push @sep, length($data);

while( $data =~ /Item|volume|day|test/g ){
    #printf "%s|%s|%s,matched pos=%s\n", $`,$&,$',$-[0];
    my $match_bgn = $-[0];
    for( my $idx=0 ; $idx < $#sep; $idx ++){
        # printf "match pos=%d, %d .. %d\n"
        #,$match_bgn ,$sep[$idx] ,$sep[$idx+1];
        if( $match_bgn > $sep[$idx] && $match_bgn < $sep[$idx+1]) {
            print "col of $&=$idx\n";
        }
    }
}
__DATA__
Region day Item volume Month district piece amount day ... one more te
+st
col of day=1
col of Item=2
col of volume=3
col of day=8
col of test=12