runtime/Cpp/tests/t006lexer.g - platform/external/antlr - Git at Google

 lexer grammar t006lexer;
 options {
   language =Cpp;
 }

 @lexer::includes
 {
 #include "UserTestTraits.hpp"
 }
 @lexer::namespace
 { Antlr3Test }

 FOO: 'f' ('o' | 'a')*;
	lexer grammar t006lexer;
	options {
	language =Cpp;
	}

	@lexer::includes
	{
	#include "UserTestTraits.hpp"
	}
	@lexer::namespace
	{ Antlr3Test }

	FOO: 'f' ('o' \| 'a')*;