Japanese character encoding aliases

[tyano]

Hello,

I am Yano, a user of roundcube at my home in Japan.

Some Japanese characters are not shown as expected while mail clients (ex. ThunderBird) can show them as expected.

I found the reason and a way to fix it.

The mails in ISO-2022-JP encoding can include characters not in ISO-2022-JP.
These characters are included in the encoding ISO-2022-JP-MS.

I modified program/lib/Roundcube/rcube_charset.php:
line 235:
        if ($mbstring_list !== false) {
            $aliases['WINDOWS-1257'] = 'ISO-8859-13';
+            $aliases['JIS'] = 'ISO-2022-JP-MS';
+           $aliases['ISO-2022-JP'] = 'ISO-2022-JP-MS';
+           $aliases['EUC-JP'] = 'EUCJP-WIN';
+           $aliases['SJIS'] = 'SJIS-WIN';
+          $aliases['SHIFT_JIS'] = 'SJIS-WIN';

I add the lines with + marks after line 236. I am using roundcube 1.1.4.

[SKaero]

You should submit a pull request https://github.com/roundcube/roundcubemail