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package tim.prune.load;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.PlainDocument;
/**
* Document class to restrict text input to single character
* for selection of custom delimiter
*/
public class OneCharDocument extends PlainDocument
{
public void insertString(int offs, String str, AttributeSet a)
throws BadLocationException
{
//This rejects the insertion if it would make
//the contents too long.
if ((getLength() + str.length()) <= 1)
super.insertString(offs, str, a);
}
}
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