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#!/usr/bin/perl
# Perl Weekly Challenge - 110
# - https://perlweeklychallenge.org/blog/perl-weekly-challenge-110/#TASK2
#
# Task 2 - Transpose File
#
# Author: Niels 'PerlBoy' van Dijke
use v5.16;
use strict;
use warnings;
use File::Basename qw(dirname);
use File::Slurp;
use Test::More;
use Test::Deep;
# Prototype(s)
sub transposeFile($);
# Work relative from script directory
chdir(dirname($0));
cmp_deeply ([transposeFile('input2.txt')],
['name,Mohammad,Joe,Julie,Cristina',
'age,45,20,35,10',
'sex,m,m,f,f']);
done_testing;
sub transposeFile($) {
my ($f) = @_;
# Read and trim
my @lines = map { s/^\s*(.*?)\s*$/$1/; $_ } read_file($f);
my @out;
map {
my $i = 0;
map { push(@{$out[$i++]},$_) } split(/,/, $_);
} @lines;
return map {join(',',@$_)} @out;
}
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