%%% $Id: Grammars.sdf 17765 2006-02-13 12:54:52Z jurgenv $ module languages/sdf2/syntax/Grammars imports basic/Comments exports sorts Grammar context-free syntax "(/)" -> Grammar {cons("empty-grammar")} "left":Grammar "right":Grammar -> Grammar {assoc,cons("conc-grammars")} "(" Grammar ")" -> Grammar {bracket}