It should be emphasized that Parse::RecDescent
is strictly more powerful than the lex/yacc approach.
E.g., it is relatively simple to write a parser that
reconfigures its parsing rules on the fly, based on
its input. All in all, if you are familiar with Perl
and parsing, Parse::RecDescent is the way to go,
especially for self-modifying systems.
Christian Lemburg
Brainbench MVP for Perl
http://www.brainbench.com
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