123   to = from + gap_size();  in gap_left()
155   adjust_markers (pos << 1, size1() << 1, gap_size(), data);  in gap_left()
203   adjust_markers ((size1() + gap_size()) << 1, (pos + gap_size()) << 1,  in gap_right()
204 	- gap_size(), data);  in gap_right()
224   if (gap_size() >= k)  in make_gap()
235   k -= gap_size();			/* Amount of increase.  */  in make_gap()
394 	    buffer->move_gap(pptr() - buffer->gap_size());  in overflow()
534   adjust_markers ((to + gap_size()) << 1, (to + gap_size()) << 1,  in delete_range()
535 	- numdel - gap_size(), data);  in delete_range()
537    __gap_end_pos = to + gap_size();  in delete_range()
624     int gap_size = buf->gap_size() << 1;  in edit_mark()  local
629 	delta += gap_size;  in edit_mark()
630     else if (_pos >= size1 + gap_size && _pos + delta < size1 + gap_size)  in edit_mark()
631 	delta -= gap_size;  in edit_mark()
666     return delta - buffer->gap_size();  in length()