/*
* 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 com.hp.hpl.jena.n3;
import java.io.* ;
import com.hp.hpl.jena.JenaRuntime ;
import com.hp.hpl.jena.shared.JenaException ;
/** Simple class that provides output with moving left margin.
* Does not cope with tabs or newlines in output strings.
*/
// Not robust/complete enough for public use
public class N3IndentedWriter
{
String lineSeparator = JenaRuntime.getLineSeparator() ;
Writer writer ;
int column ;
int row ;
int currentIndent ;
public N3IndentedWriter(Writer w)
{
writer = w ;
column = 0 ;
row = 0 ;
currentIndent = 0 ;
}
public Writer getWriter() { return writer ; }
public int getRow() { return row ; }
public int getCol() { return column ; }
public int getIndent() { return currentIndent ; }
public void incIndent(int x) { currentIndent += x ; }
public void decIndent(int x) { currentIndent -= x ; }
public void setIndent(int x) { currentIndent = x ; }
public void print(String s)
{
try { writer.write(s); column += s.length() ; }
catch (java.io.IOException ex) { throw new JenaException(ex) ; }
}
public void println(String s)
{
try { writer.write(s); println() ; }
catch (java.io.IOException ex) { throw new JenaException(ex) ; }
}
public void println()
{
try {
writer.write(lineSeparator);
writer.flush() ;
column = 0 ;
row++ ;
padTo() ;
}
catch (java.io.IOException ex) { throw new JenaException(ex) ; }
}
public void padTo() throws IOException
{
StringBuffer sBuff = new StringBuffer() ;
for ( int i = 0 ; i < currentIndent ; i++ )
writer.write(' ') ;
column = column + currentIndent ;
}
public void flush() { try { writer.flush() ; } catch (IOException ioEx) { throw new JenaException(ioEx) ; } }
public void close() { try { writer.close() ; } catch (IOException ioEx) { throw new JenaException(ioEx) ; } }
}