You could just check if the key is blank
#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;
use Text::CSV_XS;
use IO::File;
my $hash_ref = csv_file_hashref('parameters.conf');
foreach my $key (sort keys %$hash_ref){
print $key.':';
print join ',', @{$hash_ref->{$key}};
print "\n";
}
sub csv_file_hashref {
my ($filename) = @_;
my %output_hash = ();
my $csv_fh = IO::File->new($filename, 'r');
my $csv = Text::CSV_XS->new( { allow_whitespace => 1 } );
while (my $row = $csv->getline($csv_fh)){
my $key = shift @$row;
next if $key =~ /^#/;
if ($key =~ /\S/){
$output_hash{$key} = $row ;
}
}
return \%output_hash;
}
Note $item =~ /^\s+$/ matches 1 or more white space only (but not nothing). Try $item =~ /^\s*$/ in your code.
poj
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