/**
 * @fileoverview SentenceBasedDecomposer (SPEC Section 6.1)
 *
 * Sentence boundary detection for decomposition.
 *
 * Per D-INV-*:
 * - D-INV-0: chunk.text === input.slice(span.start, span.end)
 * - D-INV-1: chunks.length >= 1
 * - D-INV-2: chunks[i].index === i
 * - D-INV-2b: chunks sorted by span.start
 * - D-INV-3: 0 <= span.start <= span.end <= input.length
 *
 * @module strategies/decompose/sentence-based
 */
import type { Chunk } from "../../core/types/chunk.js";
import type { DecomposeStrategy, DecomposeOptions } from "../../core/interfaces/decomposer.js";
/**
 * Sentence boundary detection for decomposition.
 *
 * Per SPEC Section 6.1:
 * - Uses punctuation-based sentence detection
 * - Groups sentences to meet chunk size targets
 * - Non-overlapping by default (OVL-3)
 */
export declare class SentenceBasedDecomposer implements DecomposeStrategy {
    readonly name = "SentenceBasedDecomposer";
    private readonly defaultMaxChunkSize;
    private readonly sentenceEndPattern;
    /**
     * Create a SentenceBasedDecomposer.
     *
     * @param maxChunkSize - Target maximum chunk size in characters
     */
    constructor(maxChunkSize?: number);
    /**
     * Decompose text into sentence-based chunks.
     */
    decompose(text: string, options?: DecomposeOptions): Promise<Chunk[]>;
    /**
     * Find sentence boundaries in text.
     * Returns array of end positions (after punctuation and whitespace).
     */
    private findSentenceBoundaries;
}
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