/// <reference types="node" />
import { DeEncapsulationGlobalState } from './features/handleDeEncapsulation.types';
import { FontTableEntry } from './features/handleFonts.types';
import { GlobalStateWithGroupState } from './features/handleGroupState.types';
import { FeatureHandler, WarnOption } from './features/types';
import { ProcessTokens } from './ProcessTokens';
import { ProcessTokensGlobalState, ProcessTokensGroupState, ProcessTokensOptions } from './ProcessTokens.types';
export declare type Mode = 'text' | 'html' | 'either';
declare type DeEncGroupState = ProcessTokensGroupState;
interface DeEncGlobalState extends ProcessTokensGlobalState, DeEncapsulationGlobalState, GlobalStateWithGroupState<DeEncGroupState> {
    _options: DeEncapsulationGlobalState['_options'] & WarnOption['_options'];
    _state: DeEncGroupState;
    _rootState: DeEncGroupState;
}
interface DeEncapsulateExtraOptions {
    htmlEncodeNonAscii: boolean;
    htmlFixContentType: boolean;
    htmlPreserveSpaces: boolean;
    mode: Mode;
    prefix: boolean;
    outlookQuirksMode: boolean;
}
export declare type DeEncapsulateOptions = DeEncapsulateExtraOptions & ProcessTokensOptions;
export declare class DeEncapsulate extends ProcessTokens implements DeEncGlobalState {
    _options: ProcessTokensOptions & DeEncapsulateExtraOptions;
    readonly _featureHandlers: FeatureHandler<ProcessTokensGlobalState>[];
    readonly _rootState: DeEncGroupState;
    _state: DeEncGroupState;
    _fromhtml: boolean;
    _fromtext: boolean;
    _didHtmlCharsetReplace: boolean;
    _originalHtmlCharset: string | undefined;
    constructor(options?: Partial<DeEncapsulateOptions>);
    get isHtml(): boolean;
    get isText(): boolean;
    get originalHtmlCharset(): string | undefined;
    _getOutputAsString(data: string | Buffer, font?: FontTableEntry): [string, boolean];
    _getCurrentFont(): FontTableEntry | undefined;
}
export default DeEncapsulate;