| /******************************************************************************* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.sling.scripting.sightly.impl.compiler.frontend; |
| |
| import org.apache.sling.scripting.sightly.compiler.expression.Expression; |
| |
| /** |
| * A segment in an interpolation. |
| */ |
| public interface Fragment { |
| |
| boolean isString(); |
| boolean isExpression(); |
| |
| Expression getExpression(); |
| String getText(); |
| |
| /** |
| * A fragment which is an expression. |
| */ |
| class Expr implements Fragment { |
| |
| private Expression expression; |
| |
| public Expr(Expression expression) { |
| this.expression = expression; |
| } |
| |
| @Override |
| public Expression getExpression() { |
| return expression; |
| } |
| |
| @Override |
| public String getText() { |
| throw new UnsupportedOperationException("Not a text fragment"); |
| } |
| |
| public boolean isString() { |
| return false; |
| } |
| |
| public boolean isExpression() { |
| return true; |
| } |
| |
| @Override |
| public String toString() { |
| return "Expr{" + |
| "expression=" + expression + |
| '}'; |
| } |
| } |
| |
| /** |
| * A text fragment. |
| */ |
| class Text implements Fragment { |
| private String text; |
| |
| public Text(String text) { |
| this.text = text; |
| } |
| |
| @Override |
| public String getText() { |
| return text; |
| } |
| |
| public boolean isString() { |
| return true; |
| } |
| |
| public boolean isExpression() { |
| return false; |
| } |
| |
| @Override |
| public Expression getExpression() { |
| throw new UnsupportedOperationException("Not an expression fragment"); |
| } |
| |
| @Override |
| public String toString() { |
| return "Text{" + |
| "text='" + text + '\'' + |
| '}'; |
| } |
| } |
| } |