Now we have 2 files, but I still have no idea what the resulting "merged" file should look like. It could be:
<Z><A id="a1">...</A><A id="a2">...</A></Z>
which would be quite easy to do, you don't even need Perl for this, but it could also be a file where only
D elements are added according to conditions on various tags/attributes...
What system are you trying to install XML::Parser on? Versions up to 2.29 include expat, so all you need is a C compiler, gcc works fine, to install the module. The only problem you can find is that it can collide with the static install of expat done by Apache. So version 2.30 comes without expat, which you have to install (you can find expat on sourceforge here).
Are you posting in the right place? Check out Where do I post X? to know for sure.
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>
<td> <th> <tr> <tt>
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.