C++ scanner passing values back out

[Rupert Swarbrick]

This may be a stupid question, but I'm trying to use a proper C++
scanner with flex++ and, after reading some of the tokens, I need to
make the value that I've read available to the rest of my program.

Obviously a global yylval is out - I want something encapsulated within
the class, but the class is defined in (/usr/include/)FlexLexer.h and so
shouldn't be messed around with.

Although I can inherit from the class, the code in lex.ll can't write to
whatever the derived class's properties are because it thinks it's in
class yyFlexLexer (correctly).

Is there a clean way to handle this?

Or should I include the header for the derived class and do something
nasty like recasting this-> to get the variables?

Thanks in advance for any help,

Rupert

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