[latex] save utf8 file

--2010--
Now I use vim. Vim does not add BOM in files.

--2005/09/27 bbs backup --
檔頭有問題要儲存成
utf8 without BOM

http://www.javaworld.com.tw/jute/post/view?bid=29&id=105449&sty=1&tpg=1&age=0
在檔案開首, 其實加入了數 bytes 的資料來定義那是什麼的編碼, 稱為 Byte Order
Mark, BOM (由 unicode.org 制定的嗎?).

EF BB BF: UTF-8
FE FF: UTF-16/UCS-2, little endian
FF FE: UTF-16/UCS-2, big endian
FF FE 00 00: UTF-32/UCS-4, little endian.
00 00 FE FF: UTF-32/UCS-4, big-endian.