import { Cursor } from './cursor';
import { Node } from './node';
import { Context } from './context';
export declare abstract class Rule {
    readonly ctx: Context;
    constructor(ctx: Context);
    protected abstract parseAt(cursor: Cursor): Node | null;
    parse(cursor: Cursor): Node | null;
}
export declare class DelegateRule extends Rule {
    readonly parserId: string;
    constructor(ctx: Context, parserId: string);
    parseAt(cursor: Cursor): Node | null;
}