interface TokenBase {
    type: string;
    expect: string;
}
interface TokenChar extends TokenBase {
    type: 'char';
}
interface TokenRegex extends TokenBase {
    type: 'regex';
}
interface TokenRepeated extends TokenBase {
    type: 'repeated';
    tree: Token[];
    min: number;
    max: number;
    content: string;
}
interface TokenGroup extends TokenBase {
    type: 'group';
    tree: Token[];
}
interface TokenOrRegex extends TokenBase {
    type: 'or regex';
    left: Token[];
    right: Token[];
}
export type Token = TokenChar | TokenRegex | TokenRepeated | TokenGroup | TokenOrRegex;
/** Build ast of tokens */
export declare const parseTokens: (mask: string, directlyInGroup?: boolean) => Token[];
export {};