Ken Fox wrote: > The thing I'd like to do right now is turn on :w > for all rules. A Fortran grammar might want to turn > on :i for all rules. > > Maybe add modifiers to the grammar declaration? > > grammar Fortran :i { ... }
Maybe. Or a property: grammar Fortran is modified(:i) { ... } > It would also be convenient to allow the :w > modifier to have lexically scoped behavior so a > grammar can change the definition of a word. For > example, a C grammar might want to skip comments. > > Would it be better to create a new (user-defined) > modifier instead of changing the meaning of :w? Probably. > BTW, how do we create user-defined modifiers? That's yet to be decided. One possibility is that a modifier is implemented via a special class: my class Decomment is RULE::Modifier is invoked(:decomment) { method SETUP ($data, $rule) { ... } # etc. } But, as I said, the details aren't worked out. Or, at least, Larry hasn't revealed them, if they are. ;-) Damian