/*
* Copyright 2003-2015 JetBrains s.r.o.
*
* 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 jetbrains.mps.text;
/**
* Continuous chunk of text, with append/indent operations. {@link TextUnit} has associated Buffer, comprised of <code>TextAreas</code>.
* There's only 1 active <code>TextArea</code> within a buffer.
* <p/>
* Methods of this interface return self to facilitate chaining.
* @author Artem Tikhomirov
* @since 3.3
*/
public interface TextArea {
TextArea append(CharSequence text);
TextArea newLine();
TextArea indent();
TextArea increaseIndent();
TextArea decreaseIndent();
// current length of the chunk
int length();
}