insert-before-markers, 21.4 vs. 21.5

Regarding the shell buffer starting narrowed problem, it is in fact a result of the use of insert-before-markers by the new comint.el code. Try this: (defun mess-with-buffer () "Mess around with restrictions in a buffer." (interactive) (save-restriction (widen) (goto-char (point-min)) (insert-before-markers "This is a test."))) On 21.4, you will see "This is a test." at the beginning of the victim buffer. On 21.5, you will see no change to your buffer, unless you happen to notice the word "Narrowed" appear on the modeline. If you then widen the buffer, you will see "This is a test." at the beginning. The difference is that, on 21.4, insert-before-markers does not change the state saved by save-restriction. On 21.5, insert-before-markers modifies the markers saved by save-restriction as well as all other markers associated with the buffer. Therefore, on restoring the state when leaving save-restriction, the code sees that the buffer does not start at position 1, and thus identifies it as narrowed. If we are concerned about Emacs compatibility, we need to change the 21.5 code to match the behavior of 21.4. If we are not concerned about Emacs compatibility, then I need an alternative to insert-before-markers that works on both 21.4 and 21.5. Thanks, -- Jerry James, Assistant Professor james(a)xemacs.org Computer Science Department http://www.cs.usu.edu/~jerry/ Utah State University