import { type CharRange } from './paint.js';
export type DiffKind = 'same' | 'changed' | 'removed' | 'added' | 'moved';
export interface DiffEntry {
    readonly kind: DiffKind;
    readonly before: number | null;
    readonly after: number | null;
    readonly beforeRanges?: readonly CharRange[];
    readonly afterRanges?: readonly CharRange[];
}
export interface MatchBlock {
    readonly key: string;
    readonly text: string;
    readonly formats: readonly string[];
}
export declare function matchBlocks(before: readonly MatchBlock[], after: readonly MatchBlock[]): DiffEntry[];
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