GF/src is now for 2.9, and the new sources are in src-3.0 - keep it this way until the release of GF 3

src-3.0/GF/CFGM/CFG.cf

@@ -0,0 +1,36 @@
+entrypoints Grammars;
+
+Grammars. Grammars ::= [Grammar];
+
+Grammar. Grammar ::= "grammar" Ident [Flag] [Rule] "end" "grammar";
+separator Grammar "";
+
+StartCat. Flag ::= "startcat" Category;
+terminator Flag ";";
+
+Rule. Rule ::= Fun ":" Profiles "." Category "->" [Symbol];
+terminator Rule ";";
+
+Cons. Fun ::= Ident ;
+Coerce. Fun ::= "_" ;
+
+Profiles. Profiles ::= "[" [Profile] "]";
+
+separator Profile ",";
+
+UnifyProfile. Profile ::= "[" [Integer] "]";
+ConstProfile. Profile ::= Ident ;
+
+separator Integer ",";
+
+CatS. Symbol ::= Category;
+TermS. Symbol ::= String;
+
+-- separator Symbol "";
+[]. [Symbol] ::= "." ;
+(:[]). [Symbol] ::= Symbol ;
+(:). [Symbol] ::= Symbol [Symbol] ;
+
+Category. Category ::= SingleQuoteString ;
+
+token SingleQuoteString '\'' ((char - ["'\\"]) | ('\\' ["'\\"]))* '\'' ;