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" When opening a large file, take some measures to keep things loading quickly
if has('eval') && has('autocmd')
" Threshold is 10 MiB
let g:bigfilesize = 10 * 1024 * 1024
" Declare function for turning off slow options
function! BigFileMeasures()
let l:file = expand('<afile>')
if getfsize(l:file) > g:bigfilesize
setlocal nobackup
setlocal nowritebackup
setlocal noswapfile
if has('persistent_undo')
setlocal noundofile
endif
if exists('&synmaxcol')
setlocal synmaxcol=256
endif
endif
endfunction
" Define autocmd for calling to check filesize
augroup bigfilesize
autocmd!
autocmd BufReadPre * call BigFileMeasures()
augroup end
endif
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