/*
* Copyright (c) 2012, the Dart project authors.
*
* Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html
*
* 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.dart.tools.ui.web.yaml;
import com.google.dart.tools.ui.web.utils.WebEditorAutoIndentStrategy;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.DocumentCommand;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
/**
* An indent strategy for yaml.
*/
class YamlAutoIndentStrategy extends WebEditorAutoIndentStrategy {
public YamlAutoIndentStrategy() {
}
@Override
protected void doAutoIndentAfterNewLine(IDocument document, DocumentCommand command) {
if (command.offset == -1 || document.getLength() == 0) {
return;
}
try {
// find start of line
int location = (command.offset == document.getLength() ? command.offset - 1 : command.offset);
IRegion lineInfo = document.getLineInformationOfOffset(location);
int start = lineInfo.getOffset();
boolean endsInColon = (document.getChar(command.offset - 1) == ':');
// find white spaces
int end = findEndOfWhiteSpace(document, start, command.offset);
StringBuffer buf = new StringBuffer(command.text);
if (end > start) {
// append to input
buf.append(document.get(start, end - start));
}
if (endsInColon) {
buf.append(" ");
}
command.text = buf.toString();
} catch (BadLocationException excp) {
// stop work
}
}
}