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62 lines
1.7 KiB
Java
62 lines
1.7 KiB
Java
/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012 gnosygnu@gmail.com
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gplx;
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import gplx.core.strings.*;
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public class HierPosAryBldr {
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public void Init() {
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int ary_max = ary.length;
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for (int i = 0; i < ary_max; i++)
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ary[i] = 0;
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aryIdx = -1;
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root = 0;
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}
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public void MoveDown() {
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aryIdx += 1;
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if (aryIdx == 0)
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ary[aryIdx] = root;
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else
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ary[aryIdx] = 0;
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}
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public void MoveUp() {
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aryIdx -= 1;
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MoveNext();
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}
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public void MoveNext() {
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if (aryIdx == -1)
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root += 1;
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else
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ary[aryIdx] += 1;
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}
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public boolean Dirty() {return aryIdx > -1 || root > 0;}
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public int[] XtoIntAry() {
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if (aryIdx == -1) return Int_.Ary_empty;
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int[] rv = new int[aryIdx + 1];
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for (int i = 0; i < aryIdx + 1; i++)
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rv[i] = ary[i];
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return rv;
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}
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public String XtoStr() {
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String_bldr sb = String_bldr_.new_();
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for (int i = 0; i < aryIdx; i++)
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sb.Add_spr_unless_first(Int_.Xto_str(ary[i]), " ", i);
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return sb.XtoStr();
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}
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int[] ary; int aryIdx = -1; int root = -1;
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public HierPosAryBldr(int ary_max) {ary = new int[ary_max]; this.Init();}
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}
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