/**
 * End-to-end principled prediction (P2.3 of G2P redesign).
 *
 * Combines decomposer + stress FSM + reduction into a single function:
 *
 *    predictPrincipled(word, baseLookup) → IPA | null
 *
 * Steps:
 *   1. Decompose word → outer suffix + base (with alternate spellings).
 *   2. Look up base IPA via `baseLookup` (caller supplies; typically dict
 *      lookup, eventually compiled rule table from P3).
 *   3. Concatenate base IPA + suffix IPA (stress marks stripped from base).
 *   4. Compute new stress via assignStress, passing the base's own stress
 *      index for neutral suffixes.
 *   5. Reduce unstressed vowels in the result.
 *   6. Insert stress marks at the predicted positions.
 *
 * Returns null if the word can't be decomposed or the base can't be
 * resolved. The caller falls back to other strategies in that case.
 *
 * This is purely a composition layer — all the linguistic logic lives in
 * en-suffixes, en-stress, and en-reduce.
 */
import { SuffixEntry } from "./suffixes";
import { Stress } from "./stress";
export type BaseLookup = (word: string) => string | undefined;
export interface PrincipledResult {
    ipa: string;
    base: string;
    suffix: SuffixEntry;
    stress: Stress;
}
/**
 * Run the full principled pipeline. Returns null if the word can't be
 * processed (no recognizable suffix, or base not resolvable).
 */
export declare function predictPrincipled(word: string, baseLookup: BaseLookup): PrincipledResult | null;