japanese-ten-maru-converter package
[、。] and [，．] convert mutually.
Usage
ctr-alt-i- [、。] => [，．]ctr-alt-shift-i- [，．] => [、。]
[、。] and [，．] convert mutually.
ctr-alt-i - [、。] => [，．]ctr-alt-shift-i - [，．] => [、。]