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54 lines
1.9 KiB
54 lines
1.9 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;
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import gplx.core.lists.*;
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public class List_adp_ {
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public static final List_adp Noop = new List_adp_noop();
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public static List_adp New() {return new List_adp_obj();}
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public static List_adp New_w_size(int v) {return new List_adp_obj(v);}
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public static List_adp New_by_many(Object... ary) {
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List_adp rv = new List_adp_obj();
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rv.Add_many(ary);
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return rv;
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}
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public static void Del_at_last(List_adp list) {list.Del_at(list.Count() - 1);}
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public static Object Pop(List_adp list) {
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int lastIdx = list.Count() - 1;
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Object rv = list.Get_at(lastIdx);
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list.Del_at(lastIdx);
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return rv;
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}
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public static Object Pop_first(List_adp list) { // NOTE: dirty way of implementing FIFO queue; should not be used with lists with many members
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Object rv = list.Get_at(0);
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list.Del_at(0);
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return rv;
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}
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public static Object Pop_last(List_adp list) {
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int last_idx = list.Count() - 1;
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Object rv = list.Get_at(last_idx);
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list.Del_at(last_idx);
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return rv;
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}
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public static Object Pop_or(List_adp list, Object or) {
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int list_len = list.Count(); if (list_len == 0) return or;
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int last_idx = list_len - 1;
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Object rv = list.Get_at(last_idx);
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list.Del_at(last_idx);
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return rv;
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}
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public static final int Not_found = -1, Base1 = 1;
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}
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