gvim更改文件字符utf-8，但其他编辑器显示ansi

Question

System is Win7

My vimrc:

set encoding=utf-8
set ffs=unix,dos,mac 
set fencs=utf-8,ucs-bom,euc-jp,gb18030,gbk,gb2312,cp936 
set fenc=utf-8

After I save the file with gvim, I open the file in editplus :

PS: editplus's default character setting is ANSI.

Why?

Answer 1

The beauty of the UTF-8 encoding is that, as long as the text is pure 7-bit ASCII (ie only the normal English characters), it is indistinguishable from ANSI / ASCII. So it may be fine that other editors show the file as ANSI.

When you insert a non-ASCII character (eg A UMLAUT = Ä; you can enter this in Vim as a digraph, pressing Ctrl + K , followed by A : ), other editors should properly detect UTF-8, though (or they will probably show two pieces of garbage instead).

If this were another Unicode encoding, you could help other editors by inserting a byte order mark ( :setlocal bomb in Vim), but for UTF-8, there is no high/low-byte ordering issue, and a BOM is rarely used (and some applications don't cope well with it.)

Answer 2

Vim must be adding some special characters or changing something in there. Can you copy the file off somewhere else then save over it in gvim, and attach both the original and gvim-saved version at http://www.diffchecker.com/ or some site like that? That should tell you exactly what gvim has modified about it.