/* ======================================================================== * PlantUML : a free UML diagram generator * ======================================================================== * * (C) Copyright 2009-2023, Arnaud Roques * * Project Info:  http://plantuml.com *  * If you like this project or if you find it useful, you can support us at: *  * http://plantuml.com/patreon (only 1$ per month!) * http://plantuml.com/paypal *  * This file is part of PlantUML. * * PlantUML is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * PlantUML distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public * License for more details. * * You should have received a copy of the GNU General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, * USA. * * * Original Author:  Arnaud Roques * * */package net.sourceforge.plantuml.style;import java.util.ArrayList;import java.util.Collection;import java.util.Collections;import java.util.Iterator;import java.util.List;import java.util.ListIterator;class Context {	private final List<String> data = new ArrayList<String>();	public Context push(String newString) {		final Context result = new Context();		result.data.addAll(this.data);		result.data.add(newString);		return result;	}	public Context pop() {		if (size() == 0)			throw new IllegalStateException();		final Context result = new Context();		result.data.addAll(this.data.subList(0, this.data.size() - 1));		return result;	}	@Override	public String toString() {		return data.toString();	}	public int size() {		return data.size();	}	public Collection<StyleSignatureBasic> toSignatures() {		List<StyleSignatureBasic> results = new ArrayList<>(Collections.singletonList(StyleSignatureBasic.empty()));		boolean star = false;		for (Iterator<String> it = data.iterator(); it.hasNext();) {			String s = it.next();			if (s.endsWith("*")) {				star = true;				s = s.substring(0, s.length() - 1);			}			final String[] names = s.split(",");			final List<StyleSignatureBasic> tmp = new ArrayList<>();			for (StyleSignatureBasic ss : results)				for (String name : names)				// BUG: CWE-918 Server-Side Request Forgery (SSRF)				// tmp.add(ss.add(name));				// FIXED: 					tmp.add(ss.add(name.trim()));			results = tmp;		}		if (star)			for (ListIterator<StyleSignatureBasic> it = results.listIterator(); it.hasNext();) {				final StyleSignatureBasic tmp = it.next().addStar();				it.set(tmp);			}		return Collections.unmodifiableCollection(results);	}}