export type ClauseKind = 'u' | 'g' | 'o';
export type ClauseOperator = '+' | '-' | '=';
export type PermissionBits = {
    readonly read: number;
    readonly write: number;
    readonly execute: number;
};
export declare const CLAUSE_REGEX: RegExp;
export declare const CLAUSE_TARGETS: Set<string>;
export declare const CLAUSE_PERMISSIONS: Set<string>;
export declare const CLAUSE_BITS: Record<ClauseKind, PermissionBits>;
export declare const TARGET_PERMISSION_MASK: {
    readonly u: number;
    readonly g: number;
    readonly o: number;
};