public void printIndent() throws IOException {
  _startLine=false;
  for (int i=0; i < _indentDepth; i++)   _os.print(' ');
  _lastCr=false;
}

public void printIndent ( ) throws IOException { _startLine = false ; for ( int i = 0 ; i < _indentDepth ; i ++ ) _os . print ( ' ' ) ; _lastCr = false ; }
prints the indentation at the beginning of a line .
