import { Token } from './tokens.js';
export default class Lexer {
    input: string;
    position: number;
    readPosition: number;
    ch: number;
    constructor(source: string);
    private readChar;
    getLocation(): {
        line: number;
        position: number;
    };
    getLine(lineNumber: number): string;
    getLocationInfo(): string;
    nextToken(): Token;
    private readIdentifier;
    private readComment;
    private readString;
    private readNumberOrFloat;
    private skipWhitespace;
}
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