public TextRange(int offset, int length) { fOffset= offset; Assert.isTrue(fOffset >= 0); fLength= length; Assert.isTrue(fLength >= 0);
public TextRange(int offset) { this(offset, 0);
	public TextRange(int offset, int length) {		fOffset= offset;		Assert.isTrue(fOffset >= 0);		fLength= length;		Assert.isTrue(fLength >= 0);	}