Hi,

I have a big file with more than 100000 lines to fold.



Out of using common foldexpr method that takes too long time, I have tried to 
readfile in binary mode and by comparison with each begin of lines, I have feed 
own dictionnary scannedfoldlinenos like that :

scannedfoldlinenos = { 'lineno' : 'foldlevel' }

1 : '>1'
152 : '<1'
153 : '>1'
600 : '<1'


Then with this dict, I use common foldexpr method like that :


setlocal foldmethod=expr
setlocal foldexpr=GetFold(v:lnum)
function! GetFold(lnum)
        if has_key(scannedfoldlinenos, a:lnum)
                return scannedfoldlinenos[lnum]
        else
                return '='
        endif
endfunction                                 



It does not fold my file so I would like to know if I can set fold starting 
from my dict infos.

Thank you!

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