XML::Twig + XPath (either the XPath built-in to XML::Twig, or, if you need a bit more, XML::XPath will work with twig objects). Suddenly, you won't have to care about depth, just names. You may have to care about multiple names for a given value, such as //middle//name, or just //name, or include attributes or whatever, but it's all hierarchies of names, regardless of depth.
Of course, it's always nice to have a standard format for all your vendors to use, but, unless you're Walmart, good luck with that. :-)
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
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<dl> <dt> <em> <font>
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<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
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<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
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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
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taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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