Method check

basex-core/src/main/java/org/basex/util/XMLToken.java:241–256

Returns a valid token representation of the specified value. @param value object (can be null, will be converted to token otherwise) @param validate validate input @return token, or null if validation is enabled and if invalid characters are found

(final Object value, final boolean validate)

   * @return token, or {@code null} if validation is enabled and if invalid characters are found
   */
  public static byte[] check(final Object value, final boolean validate) {
    if(value == null) return Token.EMPTY;

    final TokenBuilder tb = new TokenBuilder();
    final TokenParser tp = new TokenParser(Token.token(value));
    while(tp.more()) {
      final int cp = tp.next();
      if(valid(cp)) {
        tb.add(cp);
      } else {
        if(validate) return null;
        tb.add(Token.REPLACEMENT);
      }
    }
    return tb.finish();
  }

  /**
   * Checks the specified token as an NCName.