"@implementation" L C F(yyextra->no_.AtImplementation ? tk::AtImplementation_ : tk::AtImplementation, hi::Meta);
"@import" L C F(tk::AtImport, hi::Meta);
"@selector" L C F(tk::AtSelector, hi::Meta);
+
+"NULL" L C I(identifier, Identifier("NULL"), tk::Identifier_, hi::Constant);
"nil" L C I(identifier, Identifier("nil"), tk::Identifier_, hi::Constant);
+"YES" L C I(identifier, Identifier("YES"), tk::Identifier_, hi::Constant);
+"NO" L C I(identifier, Identifier("NO"), tk::Identifier_, hi::Constant);
@end
"false" L C I(false, False(), tk::False, hi::Constant);