/** True when any `/`-separated segment of `filePath` is exactly `..`. */
export declare function hasParentTraversalSegment(filePath: string): boolean;
export declare function isValidAnchorFormat(anchor: string): boolean;
/** For a file-symbol anchor, the file path portion (before "#"). Table anchors have none. */
export declare function anchorFilePath(anchor: string): string | undefined;
/** For a file-symbol anchor, the symbol portion (after "#"). Table anchors have none. */
export declare function anchorSymbol(anchor: string): string | undefined;
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