@technobuddha/library/unescapeJava/unescapeJava.mjs

A large library of useful functions

/**
 * Unescape a string encoded in Java style
 *
 * @param input The string to unescape
 * @returns the string with escapes resolved
 */
export function unescapeJava(input) {
    return input.replace(
    // cspell:disable-next-line
    /\\(([bfnrt"'\\])|([0-7]{1,3})|(u[0-9a-fA-F]{4}))/ug, escape => {
        const c = escape.charAt(1);
        if (c === 'b')
            return '\b';
        if (c === 'f')
            return '\f';
        if (c === 'n')
            return '\n';
        if (c === 'r')
            return '\r';
        if (c === 't')
            return '\t';
        if (c >= '0' && c <= '7')
            return String.fromCharCode(Number.parseInt(escape.slice(1), 8));
        if (c === 'u')
            return String.fromCharCode(Number.parseInt(escape.slice(2), 16));
        return escape.slice(1);
    });
}
export default unescapeJava;