/**
 * Level 2 operators used in URI templates (RFC 6570).
 */
export type OperatorL2 = '+' | '#';
/**
 * Level 3 operators used in URI templates (RFC 6570).
 */
export type OperatorL3 = '.' | '/' | ';' | '?' | '&';
/**
 * Reserved operators used in URI templates (RFC 6570).
 */
export type OperatorReserved = '=' | ',' | '!' | '@' | '|';
/**
 * Union type combining all URI template operators.
 */
export type Operators = OperatorL2 | OperatorL3 | OperatorReserved;
export declare const allow: {
    readonly '': readonly ["U"];
    readonly '+': readonly ["U", "R"];
    readonly '.': readonly ["U"];
    readonly '/': readonly ["U"];
    readonly ';': readonly ["U"];
    readonly '?': readonly ["U"];
    readonly '&': readonly ["U"];
    readonly '#': readonly ["U", "R"];
};
export declare const restricted: {
    ' ': number;
    '<': number;
    '>': number;
    '{': number;
    '}': number;
    '%': number;
    ':': number;
    '/': number;
    '?': number;
    '#': number;
    '[': number;
    ']': number;
    '@': number;
    '!': number;
    $: number;
    '&': number;
    '\'': number;
    '(': number;
    ')': number;
    '*': number;
    '+': number;
    ',': number;
    ';': number;
    '=': number;
};
export type UriTemplate = (string | UriTemplateExpansion)[];
export type UriTemplateExpansion = {
    ref: string | UriTemplateExpansion[];
    sub?: number;
    operator?: Operators;
    explode?: boolean;
};
export declare function subOperatorx(operator: Operators | undefined, isMulti: boolean): Operators | undefined;
export declare function joinOperator(operator: Operators | undefined, isMulti: boolean): Operators | undefined;
export declare function prefixOperator(operator: Operators | undefined, isMulti: boolean): Operators | undefined;
export declare function match(s: string, template: UriTemplate): null | {
    remainder: string;
    variables: Record<string, unknown>;
};
export declare function expand(template: UriTemplate, variables: Record<string, unknown>): string;
export declare function parse(s: string): UriTemplate;
export declare function tryParse(s: string): {
    template: UriTemplate;
    warnings: Error[];
};