<fim-prefix>brary; 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: 
<fim-middle>					tmp.add(ss.add(name.trim()));
			results = tmp;
		}

		if (star)
			for (ListIterator<StyleSignatureBasic> it = results.listIterator(); it.hasNext();) {
				final StyleSignatureBasic tmp = it.next<fix-suffix>().addStar();
				it.set(tmp);
			}

		return Collections.unmodifiableCollection(results);
	}

}<|endoftext|>