Works fine here: 

$ cat x.pl
#!/usr/bin/perl -w

use strict;

#  Test to see if $. really does break when reading from DATA.

{
    #foreach (<DATA>) { print "Try line $.:$_"; }
    while(<DATA>) { print "Try line $.:$_"; }
}

__DATA__
This is line 1.
This is the second line.
Here is line 3.
The last line is line 4.$ perl ./x.pl
Try line 1:This is line 1.
Try line 2:This is the second line.
Try line 3:Here is line 3.
Try line 4:The last line is line 4.$

[download]
Note how I removed the foreach and replaced with while. The foreach will slurp the file in (<DATA> in list context) and then loop through the list. while, however, is evaluating in scalar context, which means read one line, deal with it, move to the next line.

In reply to Re: Odd behaviour with $. and <DATA> by Tanktalus
in thread Odd behaviour with $. and <DATA> by talexb

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.