import { Token, Group, GroupInProgress, Item, Items } from './tokens.js';
import { Pos } from './position.js';
import { Scanner } from './scanner.js';
export declare class LaxReader implements IterableIterator<Item> {
    readonly scanner: Scanner;
    readonly stack: Array<GroupInProgress>;
    constructor(scanner: Scanner);
    [Symbol.iterator](): IterableIterator<Item>;
    stackTop(): GroupInProgress | null;
    popUntilMatch(t: Token): Group | 'continue' | 'eof';
    _eofClose(): Token;
    peek(): Token;
    drop(): void;
    inTemplateString(): boolean;
    expectTemplateVariablePart(): void;
    read(): Item | null;
    readToEnd(): Items;
    next(): IteratorResult<Item>;
}
export interface LaxReadOptions {
    start?: Pos;
    name?: string;
    extraDelimiters?: string;
    synthetic?: boolean;
}
export declare function laxRead(source: string, options?: LaxReadOptions): Items;