On 10/23/2005 01:08 PM, Larry Evans wrote: [snip]
Hopefully, the file:
proto_static_disp.cpp
will also generate some ideas. AFAICT, the arith_expr_gram typedef in that file contains all the grammar (which is recursive) and *maybe* could be further developed to eliminate dynamic dispatching. Of course, I've only compiled it and not yet tried to parse anything with it. It's also not readable, but I'm thinking that maybe the proposed typeof and << and | and spirit operators could be used to replace the 2nd part of the mpl::pair's in the mpl::map.
There's now a proto_static_disp.zip containing code and it's output for two inputs: ident ident * ident The code avoids any dynamic dispatching by using the "Curiously Recurring Template Pattern" (See Abrahams and Gurtovoy's _C++ Template Metaprogramming_, section 9.8) in Grammar template.