/// <reference types="node" />
import { Transform } from 'stream';
export declare const enum Mode {
    NORMAL = 0,
    CONTROL_START = 1,
    CONTROL_WORD = 2,
    CONTROL_PARAM = 3,
    BINARY = 4,
    HEX = 5
}
export declare const enum TokenType {
    GROUP_START = 0,
    GROUP_END = 1,
    CONTROL = 2,
    TEXT = 3
}
export interface BaseToken {
    type: TokenType;
    word?: string;
    data?: Buffer;
    length?: number;
    param?: number;
}
export interface GroupStartToken extends BaseToken {
    type: TokenType.GROUP_START;
}
export interface GroupEndToken extends BaseToken {
    type: TokenType.GROUP_END;
}
export interface TextToken extends BaseToken {
    type: TokenType.TEXT;
    data: Buffer;
    length: number;
}
export interface ControlToken extends BaseToken {
    type: TokenType.CONTROL;
    word: string;
}
export declare type Token = GroupStartToken | GroupEndToken | TextToken | ControlToken;
export declare class Tokenize extends Transform {
    protected _mode: Mode | undefined;
    protected _token: Token | null | undefined;
    protected _expectedBinaryBytes: number;
    protected _readHexDigitsCount: number;
    protected _paramStr: string;
    constructor();
    _flushToken(): void;
    _handleSpecialOrPush(): void;
    _transform(chunk: Buffer | string, encoding: string | undefined, cb: (err?: any) => void): void;
    __transform(chunk: Buffer | string, encoding: string | undefined): void;
    _flush(cb: () => void): void;
}
export default Tokenize;