[antlr-interest] Rewrite rule for multiple alternatives

[Gavin Lambert]

At 07:46 3/08/2007, Andy Tripp wrote:
 >I wonder if ANTLR could be enhanced to allow the sort of
 >thing that Jan has above? If not, how about allowing him
 >to assign a name to any arbirarily complex expression
 >on the left like this:
 >
 >'{' mystuff=(a | b | c)* '}'  -> ^(COMPOUND $mystuff )

Again, I haven't tried it, but IIRC something like this works too:

'{' (mystuff+=(a | b | c))* '}' -> ^(COMPOUND $mystuff*)