Hello Aldebaran,

Just a couple of points in haukex’s excellent answer that I would like to emphasise:

  1. The most important data missing from your SSCCE is your desired output. “A picture is worth a thousand words.”
  2. This line: 
    my @lines = $path_to_file->slurp;

    [download]
    almost certainly doesn’t do what you think it does. The documentation for Path::Tiny::slurp says that it “Reads file contents into a scalar.” So after that line of code is executed, the array @lines contains a single entry, identical to the string previously assigned to $guts. To get an array of lines, you need to split the string, either on newlines as haukex showed: 
    my $guts  = $path_to_file->slurp;
my @lines = split /\n/, $guts;

    [download]
    or using the special multiline pattern documented in split: 
    my $guts  = $path_to_file->slurp;
my @lines = split /^/, $guts;

    [download]
    The latter preserves newlines in the input data, including blank lines at the end of the input file; the former does not.

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re: rectangularizing input to become array by Athanasius
in thread rectangularizing input to become array by Aldebaran

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