[pcre-dev] Creating FA from PCRE rules

Hello,
I would like to create Final automata from the PCRE patterns. (I know,
that some features can not be transform into FA, so this features will
be ignored). I am planning to use flex/bison to parse PCRE patterns.
Therefore I would like to ask if there is any grammar for PCRE rules.
The only detailed description I know are manpages for the PCRE library
and Perl documentation, which simply contains all possible structures.

Thank You for any hint or advice.

--
Jan Kastil
galloth@???