Coding system question(s)

Coding system question(s)

[B. T. Raven]

Coding system for saving file?(default nil)is always the prompt in the
mini-buffer when I do C-x ret f even though I have all these set in .emacs:

   (set-language-environment               'utf-8)
        (set-default-coding-systems             'utf-8)
        (setq file-name-coding-system           'utf-8)
        (setq default-buffer-file-coding-system 'utf-8)
        (setq coding-system-for-write           'utf-8)
        (set-keyboard-coding-system             'utf-8)
        (set-terminal-coding-system          'utf-8)
        (set-clipboard-coding-system            'utf-8)
        (set-selection-coding-system            'utf-8)
        (prefer-coding-system                   'utf-8)
        ;; (set-buffer-process-coding-system 'utf-8 'utf-8)
        (modify-coding-system-alist 'process
"[cC][mM][dD][pP][rR][oO][xX][yY]" 'utf-8-dos)

With w32 build of Emacs what do I have to do to ensure that all plain
text files (.txt, .tex, .el, etc.) are read in and written out in utf-8
encoding? I also have this cookie at the start of all such files:

;; -*- coding: utf-8 -*-
;;  Time-stamp: "2011-02-24 13:07:25 EC"

I have had .emacs this way for a couple of years but I am having
problems editing files created with ver. 22.3 in ver. 23.3
??

Thanks,

Ed

Re: Coding system question(s)

[Eli Zaretskii]

> Date: Sun, 27 Mar 2011 10:19:22 -0500
> From: "B. T. Raven" <nihil@nihilo.net>
> 
> Coding system for saving file?(default nil)is always the prompt in the
> mini-buffer when I do C-x ret f

Is there a typo somewhere?  "C-x RET f" just sets the encoding of the
current buffer, it doesn't save any file.

> With w32 build of Emacs what do I have to do to ensure that all plain
> text files (.txt, .tex, .el, etc.) are read in and written out in utf-8
> encoding?

M-x set-locale-environment RET utf-8 RET

>         (set-clipboard-coding-system            'utf-8)
>         (set-selection-coding-system            'utf-8)

Don't do that on Windows, you are shooting yourself in the foot.  The
Windows clipboard works in UTF-16 (not UTF-8) by default, and
switching it to UTF-8 is asking for trouble, because Windows doesn't
really understand UTF-8 in the clipboard data.

Re: Coding system question(s)

[B. T. Raven]

Eli Zaretskii wrote:
>> Date: Sun, 27 Mar 2011 10:19:22 -0500
>> From: "B. T. Raven" <nihil@nihilo.net>
>>
>> Coding system for saving file?(default nil)is always the prompt in the
>> mini-buffer when I do C-x ret f
> 
> Is there a typo somewhere?  "C-x RET f" just sets the encoding of the
> current buffer, it doesn't save any file.

Yes, I know, but why does it default to nil? Couldn't some variable
supply the default here?

From menu bar:

options > Mule > Set coding systems > For saving this buffer

that led me to believe that it was synonymous with

C-x ret c and then C-x C-s

> 
>> With w32 build of Emacs what do I have to do to ensure that all plain
>> text files (.txt, .tex, .el, etc.) are read in and written out in utf-8
>> encoding?
> 
> M-x set-locale-environment RET utf-8 RET
> 
>>         (set-clipboard-coding-system            'utf-8)
>>         (set-selection-coding-system            'utf-8)
> 
> Don't do that on Windows, you are shooting yourself in the foot.  The
> Windows clipboard works in UTF-16 (not UTF-8) by default, and
> switching it to UTF-8 is asking for trouble, because Windows doesn't
> really understand UTF-8 in the clipboard data.

Okay, thanks, Eli. I guess that would cause problems but not the ones I
was having with file/buffer encodings. Multilingual files that I once
had figured out were loading with many octals (/xxx) instead of the
correct glyph. Anyway, I took out those two settings and added:

(set-locale-environment 'utf-8)

in .emacs