import { Diff } from 'diff-match-patch';
import { MergeConflictFormatter } from './conflict-formatters';
export declare const CONFLICT_MARKER_LENGTH = 7;
export interface Diff3Options {
    diffFunction?: (a: string, b: string) => Diff[];
    conflictFormatter?: MergeConflictFormatter;
    aLabel?: string;
    bLabel?: string;
}
export declare class Diff3 {
    private conflictFormatter;
    private readonly lines;
    private currentLine;
    private readonly matches;
    private readonly mergedChunks;
    private readonly options?;
    constructor(a: string, o: string, b: string, options?: Diff3Options);
    getMerged(): string;
    private merge;
    /**
     * Find the offset from the current line to the next mismatch
     * @returns the number of lines to the next mismatch, or undefined if there is no mismatch
     */
    private findMismatch;
    private findMatch;
    private pushRemainingChunk;
    private pushChunk;
}
/**
 * Splits a string into lines, preserving the newline character at the end of each line.
 * @param s the string to split
 * @returns an array of lines
 */
export declare function splitLines(s: string): string[];