Hello!

I have a text file which contains repeating entries as follows:

A: A_value
B: B_value
C: C_value

A: A_value
B: B_value
C: C_value

[download]

My objective is to extract the values and store them to variables to later save into an array of hashes.

My current code is as follows:

my @data = readOnly( "Data.txt" );
my $i = 0; my $index = 0;
my $a; my $b; my $c;

while( $i < @data )
{
    if( $data[$i] =~ /A:/ )
    {
        ( , $a) = split( /: /, $data[$i++] );
        ( , $b) = split( /: /, $data[$i++] );
        ( , $c) = split( /: /, $data[$i++] );

        if( exists $baseline{$a} )
        {
            $hash[$index++] = {
                                a => $a,
                                b => $b,
                                c => $c,
                              };
        }
    }
}

[download]

I've tried declaring the variables $a, $b and $c at the time of assignment as opposed to at the start of the sub and I've tried using a $garbage variable to store the first token of each split (although I don't need it).

I've gotten a variety of errors depending on how I set the code up, but ultimately Perl keeps telling me that $a is uninitialized when I use it in the check for existence.

Insight on why I'm having this issue and guidance on how to code this correctly would be GREATLY appreciated.

Thanks!

In reply to Store result of split directly to variable(s) by Perl_Ally

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