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105 lines
2.7 KiB
Java
105 lines
2.7 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2024, Arnaud Roques
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*
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* Project Info: https://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* https://plantuml.com/patreon (only 1$ per month!)
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* https://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*/
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package net.sourceforge.plantuml.version;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import net.sourceforge.plantuml.text.StringLocated;
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public class IteratorCounter2Impl implements IteratorCounter2 {
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private List<StringLocated> data;
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private List<StringLocated> trace;
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private int nb;
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public void copyStateFrom(IteratorCounter2 other) {
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final IteratorCounter2Impl source = (IteratorCounter2Impl) other;
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this.nb = source.nb;
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this.data = source.data;
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this.trace = source.trace;
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}
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public IteratorCounter2Impl(List<StringLocated> data) {
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this(data, 0, new ArrayList<StringLocated>());
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}
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private IteratorCounter2Impl(List<StringLocated> data, int nb, List<StringLocated> trace) {
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this.data = data;
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this.nb = nb;
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this.trace = trace;
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}
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public IteratorCounter2 cloneMe() {
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return new IteratorCounter2Impl(data, nb, new ArrayList<>(trace));
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}
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public int currentNum() {
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return nb;
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}
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public boolean hasNext() {
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return nb < data.size();
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}
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public StringLocated next() {
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final StringLocated result = data.get(nb);
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nb++;
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trace.add(result);
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return result;
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}
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public StringLocated peek() {
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return data.get(nb);
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}
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public StringLocated peekPrevious() {
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if (nb == 0) {
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return null;
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}
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return data.get(nb - 1);
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}
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public void remove() {
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throw new UnsupportedOperationException();
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}
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public final List<StringLocated> getTrace() {
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return Collections.unmodifiableList(trace);
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}
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}
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