/*
* Copyright (C) 2011 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.web.controller.router;
import java.io.IOException;
import org.exoplatform.component.test.BaseGateInTest;
import org.exoplatform.web.controller.regexp.RENode;
import org.exoplatform.web.controller.regexp.REParser;
import org.exoplatform.web.controller.regexp.RERenderer;
import org.exoplatform.web.controller.regexp.REVisitor;
import org.exoplatform.web.controller.regexp.SyntaxException;
/**
* @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
*/
public class TestGroupTransformation extends BaseGateInTest {
public void testCapturing() throws SyntaxException, IOException {
assertCapturing("a", "(a)");
assertCapturing("(a)", "(a)");
assertCapturing("a(b)c", "a(b)c");
assertCapturing("(a)?", "((?:a)?)");
assertCapturing("a|b", "(a)|(b)");
assertCapturing("(a)|b", "(a)|(b)");
assertCapturing("(a|b)", "(a|b)");
assertCapturing("(a)(b)", "((?:a)(?:b))");
assertCapturing("(a)|", "(a)|()");
assertCapturing("|(a)", "()|(a)");
assertCapturing("|", "()|()");
}
public void testNonCapturing() throws SyntaxException, IOException {
assertNonCapturing("a", "(a)");
assertNonCapturing("(a)", "((?:a))");
assertNonCapturing("a(b)c", "(a(?:b)c)");
assertNonCapturing("(a)|b", "((?:a)|b)");
}
private void assertNonCapturing(String test, String expected) throws SyntaxException, IOException {
assertTransform(test, expected, false);
}
private void assertCapturing(String test, String expected) throws SyntaxException, IOException {
assertTransform(test, expected, true);
}
private void assertTransform(String test, String expected, boolean capturing) throws SyntaxException, IOException {
RENode node = new REParser(test).parse();
REVisitor<RuntimeException> transformer = capturing ? new CaptureGroupTransformation()
: new NonCaptureGroupTransformation();
node.accept(transformer);
StringBuilder sb = new StringBuilder();
RERenderer renderer = new RERenderer(sb);
node.accept(renderer);
assertEquals(expected, sb.toString());
}
}