/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012-2017 gnosygnu@gmail.com

XOWA is licensed under the terms of the General Public License (GPL) Version 3,
or alternatively under the terms of the Apache License Version 2.0.

You may use XOWA according to either of these licenses as is most appropriate
for your project on a case-by-case basis.

The terms of each license can be found in the source code repository:

GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
*/
package gplx.xowa.htmls.core.wkrs.bfr_args; import gplx.*; import gplx.xowa.*; import gplx.xowa.htmls.*; import gplx.xowa.htmls.core.*; import gplx.xowa.htmls.core.wkrs.*;
import gplx.core.brys.*;
public class Bfr_arg__hatr_arg implements Bfr_arg_clearable {
	private final    byte[] atr_bgn;
	private Bfr_arg_clearable val_as_arg;
	public Bfr_arg__hatr_arg(byte[] key) {this.atr_bgn = Bfr_arg__hatr_.Bld_atr_bgn(key);}
	public Bfr_arg__hatr_arg Set_by_arg(Bfr_arg_clearable v)			{val_as_arg = v; return this;}
	public Bfr_arg__hatr_arg Set_by_arg_empty()							{val_as_arg = Bfr_arg__html_atr__empty.Instance; return this;}
	public void Bfr_arg__clear() {val_as_arg = null;}
	public boolean Bfr_arg__missing() {return val_as_arg == null || val_as_arg.Bfr_arg__missing();}
	public void Bfr_arg__add(Bry_bfr bfr) {
		if (Bfr_arg__missing()) return;
		bfr.Add(atr_bgn);
		val_as_arg.Bfr_arg__add(bfr);
		bfr.Add_byte_quote();
	}
}
class Bfr_arg__html_atr__empty implements Bfr_arg_clearable {
	public void Bfr_arg__clear() {}
	public boolean Bfr_arg__missing() {return false;}
	public void Bfr_arg__add(Bry_bfr bfr) {}
        public static final    Bfr_arg__html_atr__empty Instance = new Bfr_arg__html_atr__empty(); Bfr_arg__html_atr__empty() {}
}
