[Boost-users] converting bison to boost::spirit

Subject: [Boost-users] converting bison to boost::spirit
From: Littlefield, Tyler (tyler_at_[hidden])
Date: 2011-04-27 12:37:13

Hello all:
I have a server I am trying to rewrite, but it uses bison to generate 
the parser. I know near to nothing about either of these, and the 
examples kind of confuse me. Is there a way that I can somehow convert 
the bison to boost::spirit for parsing?
Also: I'm kind of curious how one would go about making a parser with 
boost::spirit. So I define my tokens, (lets say I want to make a 
calculator as it's pretty simple). Then I would need to generate a tree, 
correct? My first thought was to just use the [] operator to pass in a 
function to receive the tokens, then push it to a vector, but that seems 
like it would be really slow when it comes to parsing the tokens. I also 
know of an abstract syntax tree, but I'm kind of confused how that works 
and how spirit would work with it. The calculator overloaded a lot of 
operators, but I sort of got lost down the line in terms of what was 
supposed to be happening. Anyone willing to explain this would be 
greatly appreciated.

-- 
Thanks,
Ty