On Thursday, 1 March 2012 at 15:10:36 UTC, Philippe Sigaud wrote:
mixin(Grammar!("Doc <- Node*"
"Node <- OpeningTag (Text / Node)* ClosingTag", NodeAction,
"OpeningTag <- '<' Identifier '>'", OpeningAction,
"ClosingTag <- `</` Identifier '>'", ClosingAction,
"Text <- (!(OpeningTag / ClosingTag) _)+"));
That looks about right, but still has a fair amount of noise.
I think the
approach of putting the entire grammar in one string is best.
Yes, using one string is indeed better. That won't be too
difficult to code.
I'm wondering if people have seen LPeg. It's a Lua library, but
the design is interesting in that patterns are first class
objects which can be composed with operator overloading.
http://www.inf.puc-rio.br/~roberto/lpeg/
