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/*
* Copyright (c) 2003 The Visigoth Software Society. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowledgement:
* "This product includes software developed by the
* Visigoth Software Society (http://www.visigoths.org/)."
* Alternately, this acknowledgement may appear in the software itself,
* if and wherever such third-party acknowledgements normally appear.
*
* 4. Neither the name "FreeMarker", "Visigoth", nor any of the names of the
* project contributors may be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "FreeMarker" or "Visigoth"
* nor may "FreeMarker" or "Visigoth" appear in their names
* without prior written permission of the Visigoth Software Society.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE VISIGOTH SOFTWARE SOCIETY OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Visigoth Software Society. For more
* information on the Visigoth Software Society, please see
* http://www.visigoths.org/
*/
package freemarker.core;
import java.io.IOException;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import freemarker.template.TemplateException;
import freemarker.template.TemplateModel;
import freemarker.template.TemplateModelException;
/**
* An instruction that processes the nested block within a macro instruction.
* @author Jonathan Revusky
*/
final class BodyInstruction extends TemplateElement {
private List bodyParameters;
BodyInstruction(List bodyParameters) {
this.bodyParameters = bodyParameters;
}
List getBodyParameters() {
return bodyParameters;
}
/**
* There is actually a subtle but essential point in the code below.
* A macro operates in the context in which it is defined. However,
* a nested block within a macro instruction is defined in the
* context in which the macro was invoked. So, we actually need to
* temporarily switch the namespace and macro context back to
* what it was before macro invocation to implement this properly.
* I (JR) realized this thanks to some incisive comments from Daniel Dekany.
*/
void accept(Environment env) throws IOException, TemplateException {
Context bodyContext = new Context(env);
env.visit(bodyContext);
}
public String getCanonicalForm() {
StringBuffer buf = new StringBuffer("<#nested");
if (bodyParameters != null) {
for (int i = 0; i');
return buf.toString();
}
public String getDescription() {
return "nested macro content";
}
/*
boolean heedsOpeningWhitespace() {
return true;
}
boolean heedsTrailingWhitespace() {
return true;
}
*/
class Context implements LocalContext {
Macro.Context invokingMacroContext;
Environment.Namespace bodyVars;
Context(Environment env) throws TemplateException {
invokingMacroContext = env.getCurrentMacroContext();
List bodyParameterNames = invokingMacroContext.bodyParameterNames;
if (bodyParameters != null) {
for (int i=0; i
