/**
 * All possible words of the dsl.
 */
export declare enum TokenType {
    PARENTHESIS_OPEN = 0,
    PARENTHESIS_CLOSE = 1,
    PLUS = 2,
    MINUS = 3,
    COMMA = 4,
    DOT = 5,
    COLON = 6,
    SLASH = 7,
    STAR = 8,
    PERCENT = 9,
    DOLLAR = 10,
    HASH = 11,
    EXCLAMATION_MARK = 12,
    EXCLAMATION_MARK_EQUAL = 13,
    EQUAL_EQUAL = 14,
    GREATER = 15,
    GREATER_EQUAL = 16,
    LESS = 17,
    LESS_EQUAL = 18,
    PIPE_PIPE = 19,
    AMPERSAND_AMPERSAND = 20,
    IDENTIFIER = 21,
    STRING = 22,
    NUMBER = 23,
    ALWAYS = 24,
    WHEN = 25,
    THEN = 26,
    IF = 27,
    AND = 28,
    OR = 29,
    NOT = 30,
    EOF = 31
}
/**
 * Represents a word of the dsl.
 */
export default class Token {
    readonly type: TokenType;
    readonly lexeme: string;
    readonly literal: any;
    readonly position: number;
    /**
     * Creates a new token from data.
     *
     * @param type token type
     * @param lexeme token source
     * @param literal token value
     * @param position token position
     */
    constructor(type: TokenType, lexeme: string, literal: any, position: number);
    /**
     * Returns the string representation of this token.
     */
    toString(): string;
}