| /* |
| * Copyright (C) 2010 Google Inc. |
| * |
| * 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 com.google.clearsilver.jsilver.functions; |
| |
| import com.google.clearsilver.jsilver.values.Value; |
| |
| import java.io.IOException; |
| |
| /** |
| * Execute functions in templates. |
| */ |
| public interface FunctionExecutor { |
| |
| /** |
| * Lookup a function by name, execute it and return the results. |
| */ |
| Value executeFunction(String functionName, Value... args); |
| |
| /** |
| * Escapes some text. |
| * |
| * @param name Strategy for escaping text. If null or "none", text will be left as is. |
| * @param input Text to be escaped. |
| * @param output Where to write the result to. |
| */ |
| void escape(String name, String input, Appendable output) throws IOException; |
| |
| /** |
| * Look up a function by name, and report whether it is an escaping function. |
| */ |
| boolean isEscapingFunction(String name); |
| } |