public UndoableEdit insertString(int where, String str, boolean beforeMarkers)
throws BadLocationException {
CharBuffer b = buffer;
if (where < 0 || where > b.length()) throw new BadLocationException("bad insert", where);
b.insert(where, str, beforeMarkers);
GapUndoableEdit undo = new GapUndoableEdit(where);
undo.content = this;
undo.data = str;
undo.nitems = str.length();
undo.isInsertion = true;
return undo;
}
public UndoableEdit remove(int where, int nitems) throws BadLocationException {
CharBuffer b = buffer;
if (nitems < 0 || where < 0 || where + nitems > b.length())
throw new BadLocationException("invalid remove", where);
b.delete(where, nitems);
GapUndoableEdit undo = new GapUndoableEdit(where);
undo.content = this;
undo.data = new String(b.getArray(), b.gapEnd - nitems, nitems);
undo.nitems = nitems;
undo.isInsertion = false;
return undo;
}