interface ScannerOptions {
    extendedIdentifiers: boolean;
}
declare class Scanner {
    #private;
    lnum: number;
    lnumStartIndex: number;
    constructor(source: string, options?: ScannerOptions);
    /**
     * Current index the scanner is pointing at
     */
    get pos(): number;
    /**
     * Current char the scanner is pointing at
     */
    get char(): string;
    /**
     * Current charCode the scanner is pointing at
     */
    get charCode(): number;
    /**
     * Returns the current range from marked index to current index in an array or a specified range.
     */
    get text(): string;
    /**
     * Returns the current range from marked index to current index in an array or a specified range.
     */
    get range(): number[];
    mark(): Scanner;
    /**
     * Retrieves the charcode of at a given index in the scanner
     */
    charCodeAt(index: number): number;
    isCharCodeAt(index: number, charCode: number): boolean;
    isLineFeedAt(index: number): boolean;
    isCarriageReturnAt(index: number): boolean;
    isWhitespace(index: number): boolean;
    isLineTerminatorAt(index: number): boolean;
    isNewLineAt(index: number): boolean;
    isDigitAt(index: number): boolean;
    isExtendedAlphabetsAt(index: number): boolean;
    isAlphabetAt(index: number): boolean;
    isHexDigitAt(index: number): boolean;
    isAlphanumericAt(index: number): boolean;
    isOutOfBoundsAt(index: number): boolean;
    getCol(): number;
    match(chars: string): boolean;
    consumeEOL(): boolean;
    someChar(chars: string[] | string): boolean;
    someCharCode(charCodes: number[]): boolean;
    scan(by?: number): Scanner;
    scanWhile(cond: () => boolean): Scanner;
    scanUntil(cond: () => boolean): Scanner;
}
export { Scanner };
export type { ScannerOptions };