package org.basex.query.func.proc;

import org.basex.query.*;
import org.basex.query.func.*;
import org.basex.query.value.item.*;
import org.basex.util.*;

/**
 * Function implementation.
 *
 * @author BaseX Team 2005-18, BSD License
 * @author Christian Gruen
 */
public final class ProcProperty extends StandardFunc {
  @Override
  public Item item(final QueryContext qc, final InputInfo ii) throws QueryException {
    final String name = Token.string(toToken(exprs[0], qc)), value = Prop.get(name);
    return value == null ? null : Str.get(value);
  }
}
