#$csvIn is a Text::xSV object.
while ($csvIn->get_row()) {
  my %fields = $csvIn->extract_hash();

  # time passes

  # set nulls to empty string.  Have to do this or there will
  # be problems later printing the data rows.
  defined($_) or $_ = "" for values %fields;
}

[download]
The trick for setting nulls to "" might be too cute though. It relies on the way that Perl uses aliasing in a way that might puzzle whoever maintains the code. You might therefore prefer the more verbose: 
  for (keys %fields) {
    unless (defined($fields{$_})) {
      $fields{$_} = "";
    }
  }

[download]

In reply to Re: Text::xSV question - could this be written better? by tilly
in thread Text::xSV question - could this be written better? by tphyahoo

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.