Hello!
I have a text file which looks like this(a portion of it): 
test.txt 
  
2004,21,22  
2004,23,24
2004,25,26
.
.
.
.

[download]
I need to split the text on whitespace and store in an array @data, so that each row gets stored in one array
element i.e. 
$data[0]=2004,21,22 
$data[1]=2004,23,24

[download]
and so on for other rows.

Once I have a row in each array element- I need to split again on comma, and store each item in one element of
another array

So I need to split on whitespace to get 
$data[0]=2004,21,22 
$data[1]=2004,22,23

[download]
And then in another array say @arr1 
$arr1[0]=2004 
$arr1[1]=21 
$arr1[2]=22

[download]
in another array @arr2 
$arr2[0]=2004 
$arr2[1]=23 
$arr2[2]=24

[download]
and so on for @arr3, @arr4( as many arrays as there are rows).Or is there a better way to do this?

At any point in the code I need to be able to access any row, and any item(e.g.'2004' or '22') in that row

Any suggestions? Here is the code I tried, but it's not working. 
  open DAT, 'test.txt' or die $!;        
  my @data; 
  my @row;
  
  while(<DAT>){
  chomp;
  push @data,split; 
  
  #print"\n$data[0]";
  #print"\n$data[1]";
  #print"\n$data[2]";
  }

  $ldata=@data;
  #print"\n$ldata";
  
  for($i=0;$i<$ldata;$i++){
  
  #print"\nThe row:";
  #print "\n$data[i]";
  
  push @row,split(/,/,$data[i]);
  
  print"\nThe contents of the  row:";
      
  foreach $item(@row) {
      print "\nThe element:";
      print "\n$item";
  }
 
 }  
 
 close DAT;

[download]
The contents of @data are printing correctly in the while loop, but not in the for loop outside, so the contents of
@row are not printing correctly either.
Any help would be appreciated.
Thanks :)

20040615 Edit by Corion: Changed title from 'Arrays'

In reply to Splitting text into arrays by perl_seeker

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • 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! —
  • 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:
    & &amp;
    < &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.