How to config Gedit on osx to edit UTF-8 files

I find the ~/.gconf/apps开发者_运维知识库/gedit-2 directory where the %gconf file is. But How should i change it so that it use utf-8 as default.

Mac version of GTK, which is used to implement gedit, has many issues concerning receiving non-ASCII characters from the keyboard. I don't recommend you to use it if you want to edit general UTF-8 documents with lots of accents and/or Asian characters.