groovy.text.markup.DelegatingIndentWriter Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of groovy-all Show documentation
Show all versions of groovy-all Show documentation
Groovy: A powerful, dynamic language for the JVM
/*
* Copyright 2003-2014 the original author or authors.
*
* 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 groovy.text.markup;
import java.io.IOException;
import java.io.Writer;
/**
* A writer which delegates to another writer and supports an
* additional indenting level.
*
* @author Cedric Champeau
*/
public class DelegatingIndentWriter extends Writer {
public static final String SPACES = " ";
public static final String TAB = "\t";
private final Writer delegate;
private final String indentString;
private int level;
public DelegatingIndentWriter(final Writer delegate) {
this(delegate, SPACES);
}
public DelegatingIndentWriter(final Writer delegate, final String indentString) {
this.delegate = delegate;
this.indentString = indentString;
}
@Override
public void write(final int c) throws IOException {
delegate.write(c);
}
@Override
public void write(final char[] cbuf) throws IOException {
delegate.write(cbuf);
}
@Override
public void write(final char[] cbuf, final int off, final int len) throws IOException {
delegate.write(cbuf, off, len);
}
@Override
public void write(final String str) throws IOException {
delegate.write(str);
}
@Override
public void write(final String str, final int off, final int len) throws IOException {
delegate.write(str, off, len);
}
@Override
public Writer append(final CharSequence csq) throws IOException {
return delegate.append(csq);
}
@Override
public Writer append(final CharSequence csq, final int start, final int end) throws IOException {
return delegate.append(csq, start, end);
}
@Override
public Writer append(final char c) throws IOException {
return delegate.append(c);
}
@Override
public void flush() throws IOException {
delegate.flush();
}
@Override
public void close() throws IOException {
delegate.close();
}
public int next() {
return ++level;
}
public int previous() {
return --level;
}
public void writeIndent() throws IOException {
for (int i=0;i