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Google App Engine compliant variation of FreeMarker.
FreeMarker is a "template engine"; a generic tool to generate text output based on templates.
/*
* Copyright 2014 Attila Szegedi, Daniel Dekany, Jonathan Revusky
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package freemarker.core;
/**
* An instruction that indicates that that opening
* and trailing whitespace on this line should be trimmed.
*/
final class TrimInstruction extends TemplateElement {
private final int TYPE_T = 0;
private final int TYPE_LT = 1;
private final int TYPE_RT = 2;
private final int TYPE_NT = 3;
final boolean left, right;
TrimInstruction(boolean left, boolean right) {
this.left = left;
this.right = right;
}
void accept(Environment env) {
// This instruction does nothing at render-time, only parse-time.
}
protected String dump(boolean canonical) {
StringBuffer sb = new StringBuffer();
if (canonical) sb.append('<');
sb.append(getNodeTypeSymbol());
if (canonical) sb.append("/>");
return sb.toString();
}
String getNodeTypeSymbol() {
if (left && right) {
return "#t";
} else if (left) {
return "#lt";
} else if (right) {
return "#rt";
} else {
return "#nt";
}
}
boolean isIgnorable() {
return true;
}
int getParameterCount() {
return 1;
}
Object getParameterValue(int idx) {
if (idx != 0) throw new IndexOutOfBoundsException();
int type;
if (left && right) {
type = TYPE_T;
} else if (left) {
type = TYPE_LT;
} else if (right) {
type = TYPE_RT;
} else {
type = TYPE_NT;
}
return new Integer(type);
}
ParameterRole getParameterRole(int idx) {
if (idx != 0) throw new IndexOutOfBoundsException();
return ParameterRole.AST_NODE_SUBTYPE;
}
}