bs-previous-bufferbs-previous-buffer is a compiled Lisp function in `
bs.el'. (bs-previous-buffer &optional BUFFER-LIST SORTING-P) Return previous buffer and buffer list for buffer cycling in BUFFER-LIST. Ignore sorting when SORTING-P is nil. If BUFFER-LIST is nil the result of `bs-buffer-list' will be used as buffer list. The result is a cons of last element of BUFFER-LIST and the buffer list used for buffer cycling.