gistfile1.vim

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" => Encoding
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set encoding=utf-8
set fileencodings=ucs-bom,utf-8,gbk,euc-jp,euc-kr,big5,gb18030,latin1

function! s:CheckGBLocale(locale_var)
  let locale_var=toupper(a:locale_var)
  if (match(locale_var, '.GBK$') != -1 || match(locale_var, '.GB18030$') != -1 || match(locale_var, '.GB2312$') != -1)
    return 1
  else
    return 0
  endif
endfunction

if (s:CheckGBLocale($LC_ALL) || s:CheckGBLocale($LC_CTYPE) || s:CheckGBLocale($LANG))
  set termencoding=gb18030
else
  set termencoding=
endif

" Set terminal encoding to GB18030
map <Leader>tg :set termencoding=gb18030<CR>

" Set terminal encoding to UTF-8, same as encoding option
map <Leader>tu :set termencoding=<CR>