import { PDFBufferIterable } from './index';
export declare type MachineCallback<T> = (match?: RegExpMatchArray) => T;
export declare type MachineRule<T> = [RegExp, MachineCallback<T>];
export declare function MachineRule<T>(regexp: RegExp, callback: MachineCallback<T>): MachineRule<T>;
export interface MachineStateConstructor<T, I> {
    new (iterable: PDFBufferIterable, encoding?: string, peekLength?: number): MachineState<T, I>;
}
export declare class MachineState<T, I> {
    protected iterable: PDFBufferIterable;
    protected encoding: string;
    protected peekLength: number;
    protected value: I;
    protected rules: MachineRule<T>[];
    constructor(iterable: PDFBufferIterable, encoding?: string, peekLength?: number);
    private readonly name;
    pop(): T;
    ignore(): T;
    attachState<SubT, SubI>(SubState: MachineStateConstructor<SubT, SubI>): MachineState<SubT, SubI>;
    read(): T;
}