Re: po file charset via auto-coding-functions

[Richard M. Stallman]

    > Could you give me an example or two?
    > Which filename handler function does this?
    > Looking at an example, I can understand the issue.

We are failing to communicate.  Your patch is a change in
po-find-charset.  po-find-charset is not a filename handler function.

You wrote:

    >     A function registered in find-operation-coding-system have
    >     to find which buffer is pretending to visit FILENAME if
    >     FILENAME doesn't exist.  And, get-file-buffer is the only
    >     (or at least the very natural) way for that.

What's the name of one function registered in find-operation-coding-system
which needs to do this?

Does that function call po-find-charset?  If so, could you show me
the sequence of function calls that gets from there to po-find-charset?