/**
 * @license
 * Copyright 2019 Ludan Stoecklé
 * SPDX-License-Identifier: Apache-2.0
 */
import { LanguageCommon, DictManager, Constants } from 'rosaenlg-commons';
export declare abstract class LanguageFilter {
    cleanSpacesPunctuationDoDefault: boolean | null;
    languageCommon: LanguageCommon;
    constants: Constants;
    protected dictManager: DictManager;
    constructor(languageCommon: LanguageCommon);
    abstract protectRawNumbers(input: string): string;
    contractions(input: string): string;
    beforeProtect(input: string): string;
    justBeforeUnprotect(input: string): string;
    titlecase(_input: string): string;
    cleanSpacesPunctuation(input: string): string;
    cleanSpacesPunctuationCorrect(input: string): string;
    addCapsSpecific(input: string): string;
    protected contract2elts(rawFirstPart: string, secondPart: string, replacer: string, input: string): string;
}