/**
 * Rule-based syllable engine for English G2P.
 *
 * Pure functions + their data tables, extracted verbatim from
 * en-g2p.ts: Maximal-Onset syllabification, morphology/weight-driven
 * stress assignment, and per-syllable IPA conversion (SUFFIX_RULES /
 * PHONEME_RULES, first match wins — order is load-bearing).
 */
import type { TraceStep } from "./g2p";
export declare function syllabify(word: string): string[];
export declare function assignStress(syllables: string[], word: string): number;
export declare function isSyllableHeavy(syllable: string): boolean;
export declare function isLikelyCompound(word: string, syllables: string[]): boolean;
export declare function syllableToIPA(syllable: string, syllableIndex: number, isStressed: boolean, isLastSyllable: boolean, nextSyllable?: string, steps?: TraceStep[], prevSyllable?: string, isNextLastSyllable?: boolean): string;