identifier:	IdentifierPart+
	;

IdentifierChar
	: 'a'..'z'|'A'..'Z'|'0'..'9'|'~'|'!'|'@'|'$'|'%'|'^'|'&'|'*'|'('|')'|'-'|'_'|'+'|'='|';'|':'|'\.'|','|'/'|'?'|'{'|'}'|'['|']'
	| '\\' ('\"'|'\''|'\\')
	;

IdentifierPart
	: IdentifierChar+
	| '"' (~'"')* '"'
	;