This library adds extra charset supports to editorconfig-emacs.
The list of supported charsets is taken from the result of
`coding-system-list'.

For example, add following to your `.editorconfig`
and `sjis.txt` will be opend with `sjis' encoding:

    [sjis.txt]
    charset = sjis

Alternatively, you can specify `emacs_charset` as:

    [sjis.txt]
    emacs_charset = sjis

If both `charset' and `emacs_charset' are defined, the value of
`emacs_charset' takes precedence.