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Windows 10 (64 bit), Emacs 25.1

I want when I save any file to save them (by default) with coding system = UTF-8.

So In my init.el I has :

(prefer-coding-system 'utf-8) (set-default-coding-systems 'utf-8) (set-language-environment 'utf-8) (set-selection-coding-system 'utf-8)

But it not help. When I try to save file (C-x C-s) Emacs prompt me: "Select coding system"

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  • 1
    What is the type/mode of the file you are saving? Having you tried this with just emacs -Q? I just have (prefer-coding-system 'utf-8-unix) in my config (Windows 10, Emacs 25.2) and it works fine. Your code also seems fine, so it is likely something else. Commented Jul 21, 2017 at 10:39
  • Type mode is Text because file is myfile.txt. I try this (prefer-coding-system 'utf-8-unix) - but it not help. I try emacs -Q but it also ask me "Select coding system". Commented Jul 21, 2017 at 11:49
  • That is strange. What language is Windows 10 configured to use - for input etc - and what kind of characters (e.g. Latin, Cyrillic, Chinese) does your text file contain? PS. I didn't mean to suggest you should use 'utf-8-unix, utf-8 should be fine. Commented Jul 21, 2017 at 13:14
  • Also - what does "myfile.txt" contain? Text you typed in? Nothing? Text pasted in? Commented Jul 21, 2017 at 13:23

3 Answers 3

Reset to default
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This does it for me:

(set-language-environment "UTF-8")

See here.

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I do not know if this can be of help, but I will mention it anyway. When working (mainly in source LaTeX files) with my colleagues who use a different coding system, nothing I did could persuade Emacs to always read (or save) with the desired encoding. I found that the only safe way was to add as a first line something like:

% -*- coding: iso-8859-15 -*-

starting in column 1. You can set the encoding you prefer there, and Emacs will save (or read) with the prescribed encoding.

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You could try M-x customize then Environment > Keyboard > Keyboard Coding System The docs say "This is set at startup based on locale." which may also point you in the direction of what variable to set.

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