Method checkEncoding

basex-core/src/main/java/org/basex/util/Strings.java:243–251

Checks if the specified encoding is supported. @param encoding encoding @return error message or null

(final String encoding)

   * @return error message or {@code null}
   */
  public static String checkEncoding(final String encoding) {
    try {
      if(Charset.isSupported(encoding)) return null;
    } catch(final IllegalArgumentException ex) {
      Util.debug(ex);
    }
    return "Unknown encoding: " + QueryError.similar(encoding,
        Levenshtein.similar(Token.token(encoding), encodings())) + '.';
  }

  /**
   * Capitalizes the first letter of a string.