I have a main grammar that passes control to two different island
grammars to parse a language. One island grammar is an island because
it's so big and can be used in a context outside the main language,
and the other island has vastly different lexer rules (whitespace
isn't ignored, etc.).
All three generate ASTs for processing by a follow-on tree parser. As
such, I need the lexer token numbers to match for all three lexers.
It seems like this is problematic; I thought if I modified the .tokens
files they would be used as input files to the ANTLR generator; this
appears to be false...i.e. they are generated from the .g file each
time.
Does anybody have any advice? It's like I need to specify a global
tokens {...} and block of lexer rule names, so that the generated
files all use the same set of numbers. Maybe it's possible for me to
make a "base" lexer class that mentions all the token names and has
overridable lexer rules. Not sure if that can even happen.
Thanks in advance for any tips...
--
Mike J. Bell on gmail
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