import { Lexeme } from '../models/Lexeme';
import { BaseTokenReader } from './BaseTokenReader';
export declare class StringSpecifierTokenReader extends BaseTokenReader {
    /**
     * Try to read an escaped literal like e'...', x'...', etc.
     */
    tryRead(previous: Lexeme | null): Lexeme | null;
    private isSingleLetterStringPrefix;
    private isUnicodePrefix;
}