import stream from "stream";
import { ParserOptions } from "./types.ts";
declare const Transform: typeof stream.Transform;
type NullableVector = {
    x: number | null;
    y: number | null;
    z: number | null;
};
export default class AsciiParser extends Transform {
    options: ParserOptions;
    debugBuffer: string;
    internalBuffer: string;
    last: string;
    currentModel: Record<string, any>;
    currentFace: {
        number: number;
        normal: NullableVector;
        vertices: NullableVector[];
    } | null;
    countedFaces: number;
    lineCounter: number;
    characterCounter: number;
    currentVertex: NullableVector;
    constructor(options?: ParserOptions);
    _parseCoordinate(word: string, type: string): number | null;
    getNextWord(): string | null;
    _processWord(word: string): string | undefined;
    _flush(done: (err?: Error) => void): void;
    _callAtEnd(done: () => void): void | NodeJS.Timeout;
    _transform(chunk: any, _encoding: string, done: (err?: Error) => void): void | NodeJS.Timeout;
}
export {};