Re: Unpack or substr to create CSV?

[karlgoethebier]

AnomalousMonk wrote:

"...but might your maintainer understand substr better?"

I don't know but as no one provided a solution that uses substr, i wrote one:

#!/usr/bin/env perl

use strict;
use warnings;

my @pairs = ( [ 0, 1 ], [ 1, 15 ], [ 16, 14 ], [ 30, 4 ], [ 35, 8 ] );

while ( my $line = <DATA> ) {
    for my $pair (@pairs) {
        my $index  = $pair->[0];
        my $offset = $pair->[1];
        print substr $line, $index, $offset;
        print qq( );
    }
    print qq(\n);
}

__DATA__
C4432882490H019000020150211ESL6690 0H2015PC
C4833076550HC0P0000201412093J46651 0H2015DX
C6033106980H057130020150323FRE7602 0H2015PC
C663160140MT007015G20141124274847A MT2015PC

Output:

karls-mac-mini:monks karl$ ./substring.pl 
C 4432882490H0190 00020150211ESL 6690 0H2015PC 
C 4833076550HC0P0 000201412093J4 6651 0H2015DX 
C 6033106980H0571 30020150323FRE 7602 0H2015PC 
C 663160140MT0070 15G20141124274 847A MT2015PC

Regards, Karl