export declare function hasBackslashPathSeparator(path: string): boolean;
export declare function hasParentPathSegment(path: string): boolean;
export declare function hasEscapingParentPathSegment(path: string): boolean;
export declare function normalizePosixPath(path: string): string;
export declare function posixDirname(path: string): string;
export declare function isUnderPosixPath(path: string, root: string): boolean;
export declare function relativePosixPathWithinRoot(root: string, path: string): string | null;