token

const (
	ILLEGAL = "ILLEGAL"
	EOF     = "EOF"

	// literals
	INT   = "INT"
	IDENT = "IDENT"
	DATE  = "DATE"
	UNIT  = "UNIT"

	// Operators
	ASSIGN = "="

	LT = "<"
	GT = ">"
	LE = "<="
	GE = ">="

	EQ     = "=="
	NOT_EQ = "!="

	// Keywords
	AND = "AND"
	OR  = "OR"

	LPAREN = "("
	RPAREN = ")"
)