Method item

basex-core/src/main/java/org/basex/query/func/bin/BinNot.java:16–28

(final QueryContext qc, final InputInfo ii)

 */
public final class BinNot extends StandardFunc {
  @Override
  public Item item(final QueryContext qc, final InputInfo ii) throws QueryException {
    final Bin value = toBinOrNull(arg(0), qc);
    if(value == null) return Empty.VALUE;

    final byte[] bytes = value.binary(info);
    final int bl = bytes.length;
    if(bl == 1) return B64.get((byte) ~bytes[0]);

    final byte[] tmp = new byte[bl];
    for(int b = 0; b < bl; b++) tmp[b] = (byte) ~bytes[b];
    return B64.get(tmp);
  }
}