Hi Monks!

I am trying to process the data for all the files I am reading from a directory, but I need to know how many fields are in each file before going into the foreach loop.
My goal is, if there are 4 values in the first row of the file file2.csv the push should be like:

     push @all, [
      
        $rows->[0],
        $rows->[1],
            $rows->[2],
        $rows->[3],
        ];
[download]

and so on for the rest of the files I am reading in depending on how many values are in each row of each file .
All the other rows in each file will have the same number of values as the first row.

I have this code where you can see what I am trying to do:

#!/usr/bin/perl

use strict;
use warnings;

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

my $csv = Text::CSV->new ( { binary => 1, eol => "\n",  quote_char => 
+'', } )
    or die "Cannot use CSV: ".Text::CSV->error_diag ();

my @files = qw( file1.csv file2.csv file3.csv file4.csv file5.csv );

# I need to read all the files in @files once at a time
my ($read_file, $name) = read_file(file => $files[0],);

my ( $ready, $file_name ) = is_ready( do_data => $read_file, fname =>$
+name);
                 
print "$file_name:\n\n";
print Dumper $ready;

sub read_file {

 my (%args) = @_;

 my $file = $args{ file };
 
 my $fh;
 eval {
   open $fh, '<:encoding(utf8)', "dir/$file" or die "Could not open '$
+file' $!\n";
 };
 
  if ($@) {
    warn "Error opening $file";
  }

  my @data;
  while (my $rows = $csv->getline( $fh )) {
    push @data,  $rows;
  }

 if (not $csv->eof) {
   $csv->error_diag();
 }
     
 close $fh;

 return \@data, $file;
    
}


sub is_ready {

 my (%args) = @_;

 my $data  = $args{ do_data };
 my $fname = $args{ fname };
 
 my @all;
 # Need to process $data for all the files coming in, but
 # I have to know how many fields are in each file before going into
 # the foreach loop.
 # If there are 4 values in the file file2.csv the push should be like
+:
=code
     push @all, [
        $rows->[0],
        $rows->[1],
            $rows->[2],
        $rows->[3],
            ];
=cut
 # and so on for the rest of the file.
 
 foreach my $rows ( @{ $data } ) {


   push @all, [
      
        $rows->[0],
        $rows->[1],
            $rows->[2],
        ...
        ];
        
  }

   my $send = \@all;

 return $send, $fname;

} #


=data

file1.csv  = 9 values in each row: eg. one,two,three,four,five,six,sev
+en,eight,nine

file2.csv  = 4 values in each row eg. one,two,three,four

file3.csv = 10 values in each row eg. one,two,three,four,five,six,seve
+n,eight,nine,ten

file4.csv = 7 values in each row eg.  one,two,three,four,five,six,seve
+n

file5.csv = 5 values in each row eg. one,two,three,four,five
[download]

Thanks for helping out if possible!

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.