[Warning and iso 8859-1 default?] (was: problem with old hebrew latex files in iso 8859-8 coding)

[Uwe Brauer]

> They are very close, yes.


> It's impossible to distinguish between single-byte encodings without
> elaborate linguistic analysis, which need sufficiently large text (and
> Emacs doesn't know how to do that anyway).

I just run the following experiment (the result you might respect, but I
found it surprising).

    1. I open a new file.

    2. I write שלום איל

    3. I save it as iso8859-8 (no warning pops up)

    4. I reopen the file and its interpreted as iso8859-1

Firstly, why does Emacs expect this to be iso8859-1? Is there any variable
I could change?

Secondly, shouldn't Emacs send a warning: «you are saving this file as
single-byte, be aware that when emacs reopen the file it might not
guess the coding» or something like this???

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