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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Eclipse Public License, Version 1.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.eclipse.org/org/documents/epl-v10.php
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.ide.eclipse.adt.internal.wizards.templates;
     17 
     18 import com.android.utils.XmlUtils;
     19 
     20 import freemarker.template.SimpleScalar;
     21 import freemarker.template.TemplateMethodModel;
     22 import freemarker.template.TemplateModel;
     23 import freemarker.template.TemplateModelException;
     24 
     25 import java.util.List;
     26 
     27 /**
     28  * Method invoked by FreeMarker to escape a string such that it can be used
     29  * as an XML attribute (escaping ', ", & and <).
     30  */
     31 public class FmEscapeXmlAttributeMethod implements TemplateMethodModel {
     32     @Override
     33     public TemplateModel exec(List args) throws TemplateModelException {
     34         if (args.size() != 1) {
     35             throw new TemplateModelException("Wrong arguments");
     36         }
     37         String string = args.get(0).toString();
     38         return new SimpleScalar(XmlUtils.toXmlAttributeValue(string));
     39     }
     40 }