Try putting <code> and </code> around your data samples, so that we can see what the data really look like.
What you want is what the unix "paste" command does. Someone has written a perl version of "paste" already (google for "perl power tools").
(update: in case you have trouble finding it, here's the source for a perl implementation of paste: http://ppt.perl.org/commands/paste/paste.randy)
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
Want more info? How to link or
or How to display code and escape characters
are good places to start.