export interface FileDiff {
    path: string;
    isNew: boolean;
    changes: DiffLine[];
    timestamp: number;
}
export interface DiffLine {
    type: 'add' | 'remove' | 'unchanged';
    content: string;
    lineNumber?: number;
}
export type TokenType = 'keyword' | 'string' | 'comment' | 'number' | 'function' | 'type' | 'operator' | 'punctuation' | 'plain';
export interface Token {
    type: TokenType;
    value: string;
}
export declare function getLanguage(path: string): string;
export declare function tokenize(line: string, language: string): Token[];
export declare function computeDiff(path: string, oldContent: string | null, newContent: string): FileDiff;
export declare function filterWithContext(changes: DiffLine[], contextLines: number): DiffLine[];
export declare function formatDiffLine(change: DiffLine): string;