Detect all changes in a buffer

[Lars Tveito]

Hi!

I am developing a minor mode that enables real-time collaboration. I
wish to detect /all/ changes made to a buffer. So far I'm using
`before-change-functions' to detect deletions and
`after-change-functions' to detect insertions.

The problem is that some functions utilizes
`inhibit-modification-hooks', even though they make changes to the
buffer. An example is `eshell-send-input'.

The first question is whether you have any suggestions as to how to get
around this? The second is whether it is considered OK for functions to
use this hook even though the function makes changes to the buffer? The
documentation for change hooks states "These hook variables let you
arrange to take notice of all changes in all buffers" which is not
really true if changes are done whilst `inhibit-modification-hooks' is
non-nil.

- Lars