declare class RegexBuilder {
    private pattern;
    digit(): this;
    letter(): this;
    lowercase(): this;
    uppercase(): this;
    lettersOrNumbers(): this;
    whitespace(): this;
    nonWhitespace(): this;
    wordChar(): this;
    nonWordChar(): this;
    anyChar(): this;
    custom(chars: string): this;
    one(): this;
    zeroOrMore(): this;
    oneOrMore(): this;
    optional(): this;
    between(min: number, max: number): this;
    exactly(n: number): this;
    atLeast(n: number): this;
    start(): this;
    end(): this;
    strict(): this;
    group(fn: (builder: RegexBuilder) => void): this;
    capture(fn: (builder: RegexBuilder) => void): this;
    or(): this;
    then(str: string): this;
    raw(str: string): this;
    not(str: string): this;
    lookahead(str: string): this;
    toRegex(flags?: string): RegExp;
    toString(): string;
    test(input: string): boolean;
    match(input: string): RegExpMatchArray | null;
}

declare const validators: {
    readonly email: (val: string) => boolean;
    readonly phone: (val: string) => boolean;
    readonly url: (val: string) => boolean;
    readonly ipv4: (val: string) => boolean;
    readonly hex: (val: string) => boolean;
    readonly username: (val: string) => boolean;
    readonly password: (val: string) => boolean;
    readonly slug: (val: string) => boolean;
    readonly date: (val: string) => boolean;
    readonly time: (val: string) => boolean;
    readonly uuid: (val: string) => boolean;
    readonly htmlTag: (val: string) => boolean;
};
type ValidatorKey = keyof typeof validators;

declare function regex(): RegexBuilder;
declare function validate(type: ValidatorKey, value: string): boolean;

export { regex, validate };