On 10/24/2005 04:08 AM, Korcan Hussein wrote: [snip]
I relized this when i was reading Spirit's documentation. I did mention from the begining all terminal leaf node types must be given, like in an MPL
What's a "terminal leaf node type"?
sequence (and probably for nonterminal node types if you can add more to the set). I did also mention this was in no way been generalized or a library of any form it was just an idea i had the other day. It's not true that there is "no possibility user-defined leaves" it is just not as simple as erasing type.
The variant, var, in: http://tinyurl.com/72hx7 works by having: var<Tp>::basic_eval : boost::static_visitor<float> { Tp::value_type operator()(const Tp& val) const { return val[curr_indx]; } template < typename Expression > Tp::value_type operator()(const Expression& exp) const { } }; where Expression is some nonterminal in the grammar. Is Tp what you refer to as a "terminal leaf node type"?