On my machine it told me it found data on 1 line, which is what I would expect...

  1. neither elsif (/^M/) nor split /^M/ are doing what you expect. If you want cntrl-M you want \cM not ^M -- though I'd use \x0D, but that's a matter of taste.

  2. especially because something odd is apparently happening, I'd recommend an or die "failed to open $csv: $!" after the open.

  3. you don't really need the for loop, you could simply push @chunks, split(/\cM/, $_). Note that split throws away trailing separators, so if a line ends "\cM\cM\cM" you won't end up with three blank lines -- which may or may not be what you want.

  4. you pass the filename $csv to the read_csv subroutine, but don't use it, which doesn't look right.

But I cannot explain why you seem to get 0 lines... I don't suppose it's possible that you have set $/ to undef ?

In reply to Re: Parsing a text file by gone2015
in thread Parsing a text file by calmthestorm

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.