I've incorporated Tux's suggestion to use getline (getline_hr, actually) instead of <>/parse/fields. It really tightens up the whole script.

#!/usr/bin/perl

use strict;
use warnings;

use English qw( -no_match_vars );
use Text::CSV;

$OUTPUT_FIELD_SEPARATOR  = "\n";
$OUTPUT_RECORD_SEPARATOR = "\n";

my $release_file = '../ecodata/releases.txt';

# Text is in the ISO 8859-1 (Latin 1) encoding
open my $release_fh, '<:encoding(iso-8859-1)', $release_file
    or die "Can't open release file $release_file: $OS_ERROR\n";

my $csv = Text::CSV->new({
    auto_diag          => 1,
    binary             => 1,
    allow_loose_quotes => 1,
    escape_char        => '\\',
});

# Header is 'TRI,Release#,ChemName,RegNum,Year,Pounds,Grams'
$csv->column_names($csv->getline($release_fh));

while (my $value = $csv->getline_hr($release_fh)) {
    {
        no warnings qw( numeric );

        if ($value->{'Pounds'} == 0.0 and $value->{'Grams'} == 0.0) {
            warn "Release $value->{'Release#'} is weightless\n";
        }
    }

    print $value->{'TRI'},
          $value->{'Release#'},
          $value->{'ChemName'},
          $value->{'RegNum'},
          $value->{'Year'},
          $value->{'Pounds'},
          $value->{'Grams'};
}

close $release_fh;

exit 0;

[download]

In reply to Re^4: problems parsing CSV by Jim
in thread problems parsing CSV by helenwoodson

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.