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60 lines
2.3 KiB
60 lines
2.3 KiB
/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012-2017 gnosygnu@gmail.com
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XOWA is licensed under the terms of the General Public License (GPL) Version 3,
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or alternatively under the terms of the Apache License Version 2.0.
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You may use XOWA according to either of these licenses as is most appropriate
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for your project on a case-by-case basis.
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The terms of each license can be found in the source code repository:
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GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
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Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
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*/
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package gplx.gfml; import gplx.*;
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public class GfmlItmKeys {
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public int Count() {return list.Count();}
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public boolean Has(String key) {return hash.Has(key);}
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public GfmlItm Get_at(int i) {return (GfmlItm)list.Get_at(i);}
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public GfmlItm Get_by(String key) {return (GfmlItm)hash.Get_by(key);}
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public String FetchDataOr(String key, String or) {
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GfmlAtr atr = FetchAtr(key);
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return (atr == null) ? or : atr.DatTkn().Val();
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}
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public String FetchDataOrNull(String key) {return FetchDataOr(key, null);}
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public String FetchDataOrFail(String key) {
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GfmlAtr atr = FetchAtr(key); if (atr == null) throw Err_.new_missing_key(key);
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return atr.DatTkn().Val();
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}
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public GfmlTkn FetchDataTknOrNull(String key) {
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GfmlAtr atr = FetchAtr(key); if (atr == null) return GfmlTkn_.Null;
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return atr.DatTkn();
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}
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public void Add(GfmlItm itm) {
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String key = itm.Key();
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if (hash.Has(key)) DelDefault(itm); // default attribs are added automatically; drop default when adding newElm
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list.Add(itm);
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if (!String_.Eq(key, GfmlItmKeys.NullKey))
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RegisterKey(key, itm);
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}
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@gplx.Internal protected void RegisterKey(String key, GfmlItm itm) {
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if (hash.Has(key)) hash.Del(key); // replace default
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hash.Add(key, itm);
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}
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void DelDefault(GfmlItm elm) {
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GfmlItm toDel = null;
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for (Object subObj : list) {
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GfmlItm sub = (GfmlItm)subObj;
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if (String_.Eq(sub.Key(), elm.Key()))
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toDel = sub;
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}
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if (toDel != null) list.Del(toDel);
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}
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GfmlAtr FetchAtr(String key) {return GfmlAtr.as_(hash.Get_by(key));}
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List_adp list = List_adp_.New(); Hash_adp hash = Hash_adp_.New();
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public static GfmlItmKeys new_() {return new GfmlItmKeys();} GfmlItmKeys() {}
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@gplx.Internal protected static final String NullKey = "";
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}
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