/**
 * Fold exact repeated sections while retaining every distinct section.
 *
 * This preserves distinct facts but loses repetition order and separators.
 * Consequently it is lossy: a source path or spill is required, and the result
 * carries recovery metadata. Near-duplicates remain distinct.
 */
import type { CompressionResult, EngineContext } from './types.js';
/** Is this text worth folding at all? */
export declare function looksRepetitive(text: string): boolean;
/**
 * Folds byte-identical repeats, keeping the first occurrence of each.
 *
 * The note names the count rather than pointing anywhere, because every folded
 * segment is an exact copy of one still in the text above it. That is what
 * makes this recoverable without a spill file and without a round trip.
 */
export declare function foldRepeatedSegments(text: string, ctx?: EngineContext): CompressionResult;
//# sourceMappingURL=segments.d.ts.map