If you really don't want to install XML::Parser, then look at some of the other config modules.
I like Config::IniFiles
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
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<blockquote> <br /> <dd>
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<h5> <h6> <hr /> <i>
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<sub> <sup> <table>
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Want more info? How to link
or How to display code and escape characters
are good places to start.