Re: Undef values from file open

Did you not see the compilation error?

Global symbol "$rec" requires explicit package name at ./1158543.pl line 27. Execution of ./1158543.pl aborted due to compilation errors.

You never defined $rec.

Update: I'd probably rewrite that like this:

#!/usr/bin/perl

use strict;
use warnings;

use Data::Dump 'pp';
use Data::Dumper;

my $file_name = "file.txt";

open my $lines, '<', $file_name
  or die "Can't open file $file_name, $!";

my @parms = qw( date day name );

while (my $line = <$lines>) {
   chomp $line;
   
   my $data;
   
   ( $data->{ date }, $data->{ day }, $data->{ name } ) = split(/,/, $
+line);
   
   print "\n $data->{ date }, $data->{ day }, $data->{ name }\n";
   
   pp @{ $data }{ (@parms) };
}
[download]

Comment on Re: Undef values from file open Download Code

Replies are listed 'Best First'.
Re^2: Undef values from file open by Anonymous Monk on Mar 22, 2016 at 20:59 UTC
typo, Im sorry, its this: `pp @{ $data }{ (@parms) };` [download]	[reply] [d/l]
Re^3: Undef values from file open by Mr. Muskrat (Canon) on Mar 22, 2016 at 21:07 UTC
It works for me. `1/1/16, Mon, foo ("1/1/16", "Mon", "foo") 1/2/16, Tue, bar ("1/2/16", "Tue", "bar")` [download] What does your data look like?	[reply] [d/l]
Re^4: Undef values from file open by Anonymous Monk on Mar 22, 2016 at 21:12 UTC
It still prints undefs: Test Data: `01/04/2014,Friday,Joe 02/11/2011,Monday,Mary 05/09/2016,Monday,Ann 07/02/2013,MOnday,Marc` [download]	[reply] [d/l]
Re^5: Undef values from file open by poj (Abbot) on Mar 22, 2016 at 21:24 UTC
Re^5: Undef values from file open by AnomalousMonk (Archbishop) on Mar 22, 2016 at 21:27 UTC
Re^6: Undef values from file open by Anonymous Monk on Mar 22, 2016 at 21:31 UTC
Some notes below your chosen depth have not been shown here
Re^2: Undef values from file open by Anonymous Monk on Mar 22, 2016 at 21:26 UTC
Its driving me crazy, I even copied your code and its still: `(undef, undef, undef) (undef, undef, undef) (undef, undef, undef) (undef, undef, undef) (undef, undef, undef) (undef, undef, undef) (undef, undef, undef) (undef, undef, undef) (undef, undef, undef) (undef, undef, undef)` [download] Why?? Can't understand it?!!	[reply] [d/l]
Re^3: Undef values from file open by BillKSmith (Monsignor) on Mar 23, 2016 at 03:08 UTC
You probably have a configuration problem. Download (not cut and paste) Mr.Muskrat's code. Download your own data file and rename it to "file.txt". Run the code that you just downloaded. I have duplicated his results this way. Bill	[reply]