Re: [Boost-users] [Proto]: How to use complex grammars in a domain/extension

On 09/21/2010 09:49 AM, Joel Falcou wrote:

The following code works here:

// ----------------------------------------------------------------------- [...] Yes, I know, but that is not the grammar I need. I want to combine my terminal similar to std::string, so that:

std::string a, b; a; // ok a + b; // ok a == b; // ok a == b + b; // ok a && a == b; // ERROR

Seems proto::or_ wiht *1* condition acts weird. Eric, am I right or am I hallucinating and missing the obvious ?

You can remove the proto::or_ like struct equation: proto::equal_to {}; It does not change the result. So it does not look like a problem in proto::or_, but maybe a bug in how proto determines the operators of extensions? Regards, Roland