The following code can be put in vimrc to detect and use such an encoding specification: if has('autocmd') function! ConvertHtmlEncoding(encoding) if a:encoding ==? 'gb2312' return 'cp936' " GB2312 imprecisely means CP936 in HTML elseif a:encoding ==? 'iso-8859-1' return 'latin1' " The canonical encoding name in Vim elseif a:encoding ==? 'utf8' return 'utf-8' " Other encoding aliases should follow here else return a:encoding endif endfunction function! DetectHtmlEncoding() if &filetype != 'html' return endif normal m` normal gg if search('\c') != 0 let reg_bak=@" normal y$ let charset=matchstr(@", 'text/html; charset=\zs[-A-Za-z0-9_]\+') let charset=ConvertHtmlEncoding(charset) normal `` let @"=reg_bak if &fileencodings == '' let auto_encodings=',' . &encoding . ',' else let auto_encodi