bug#6974: Emacs doesn't like Swedish ä (on w32)

[Andreas Röhler]

Am 02.09.2010 23:58, schrieb Lennart Borgman:
> I have a file whose name contains the Swedish char ä (a with two dots
> above, 228 in latin-1).
>
> I have seen several strange things with this. Here are some I remember:
>
>
> I start from "emacs -Q". In an org-mode file I try to insert a link to
> this file with "C-c C-l file FILENAME".
>
>
> * After M-x set-language-environment RET RET (i.e. "English") and then
> opening a new org file.
>
> Works nicely. Examining the char "ä" in the link in the org buffer
> gives as expected.
>
>          character: ä (228, #o344, #xe4)
> preferred charset: unicode-bmp
>                    (Unicode Basic Multilingual Plane (U+0000..U+FFFF))
>         code point: 0xE4
>             syntax: w   which means: word
>           category: .:Base, j:Japanese, l:Latin
>        buffer code: #xC3 #xA4
>          file code: #xE4 (encoded by coding system iso-latin-1-dos)
>            display: by this font (glyph code)
>      uniscribe:-outline-Courier
> New-normal-normal-normal-mono-13-*-*-*-c-*-iso8859-1 (#x6C)
>
> In this case I can save the file as usual.
>
>
> * After M-x set-language-environment RET utf-8 RET and then opening a
> new org file.
>
> When choosing the file the char "ä" is shown as \344. It looks the
> same when inserted in the buffer as an org link to the file.
>
>          character:   (4194276, #o17777744, #x3fffe4)
> preferred charset: eight-bit (Raw bytes 128-255)
>         code point: 0xE4
>             syntax: w   which means: word
>        buffer code: #xE4
>          file code: not encodable by coding system utf-8-dos
>            display: no font available
>
> After this I can not save the file (or rather Emacs prompts me for a
> coding system).
>
>
> I also saw that pasting the file name in some circumstances converts
> the char "ä" (or was it \344) to a space. Unfortunately I do not
> remember how that happened and I can not reproduce it now. (But I am
> very sure it happened this morning.)
>
>
> In GNU Emacs 24.0.50.1 (i386-mingw-nt5.1.2600)
>   of 2010-08-10
> Windowing system distributor `Microsoft Corp.', version 5.1.2600
> configured using `configure --with-gcc (3.4) --no-opt --cflags
> -Ic:/g/include -fno-crossjumping'


Hi,

seeing the similar:

when opening a file containing non-ascii chars, german
umlauts for example, in some case these aren't shown
as glyphs but as numbers.

See screenshot attached how the following code looks
like:

(define-abbrev-table
  'global-abbrev-table
  '(("Infinity" "∞" nil 0)
    ("alpha" "α" nil 2)
    ("beta" "β" nil 1)
    ("gamma" "γ" nil 1)
    ("theta" "θ" nil 0)))

As the only thing I remember since, is the use of

GNU Emacs 24.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.12.0) of 2010-08-28

assume the bug is there.

BTW if I paste the wrongly shown text into this mail for example,
glyphs are shown correctly.

Andreas

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