[antlr-interest] Using composite grammars

[rhann at rationalcommerce.com]

I seem to be making an elementary blunder with composite grammars.

Can anyone point out documentation describing the use of composite
grammars in more detail than is found in the wiki article?  I'm
getting this:

[10:48:39] error(161): dbSQL.g:14:8: combined grammar dbSQL cannot import combined grammar dbDML
[10:48:39] error(100): dbSQL.g:15:1: syntax error: antlr: dbSQL.g:15:1: unexpected token: import
[10:48:39] error(150):  grammar file dbSQL.g has no rules

Roy