import { ParsedDiff } from '../providers/provider.types';
/**
 * Parse a unified diff string into structured data
 */
export declare function parseDiff(diffString: string, filePath: string): ParsedDiff;
/**
 * Find the position in diff for a specific line number
 */
export declare function findDiffPosition(parsedDiff: ParsedDiff, targetLine: number): number | null;
/**
 * Get context around a specific line in the diff
 */
export declare function getDiffContext(parsedDiff: ParsedDiff, targetLine: number, contextLines?: number): string;
/**
 * Extract all modified lines from a diff that could be candidates for review comments
 */
export declare function getReviewableLines(parsedDiff: ParsedDiff): Array<{
    line: number;
    content: string;
    position: number;
    context: string;
}>;
/**
 * Check if a line number exists in the diff and can receive comments
 */
export declare function isLineCommentable(parsedDiff: ParsedDiff, lineNumber: number): boolean;