/**
* Prints out this text to the specified writer.
*
* @param writer the destination writer.
*/
public void print(Writer writer) throws IOException {
if (_data != null) { // Primitive
writer.write(_data, 0, _count);
} else { // Composite.
_head.print(writer);
_tail.print(writer);
}
}
/**
* Prints out this text to the specified writer and then terminates the line.
*
* @param writer the destination writer.
*/
public void println(Writer writer) throws IOException {
print(writer);
writer.write('\n');
}