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" Entry point to command function with one optional argument, the count of
" v:oldfiles wanted for selection.
"
function! select_old_files#(...) abort
" Check we didn't receive too many arguments
if a:0 > 1
echoerr 'Too many arguments'
endif
" If an argument was provided, use that as the limit; failing that, use
" a global variable g:select_old_files_limit if set; failing that, use two
" less than the current number of screen lines, filling the screen but not
" forcing a pager.
"
let limit = a:0 == 1
\ ? a:1 : get(g:, 'select_old_files_limit', &lines - 2)
" Check the count provided makes sense: a non-zero positive integer
if limit <= 0
echoerr 'Invalid count'
endif
" Save the current value of v:oldfiles and reassign it to have the number of
" items specified, and then :browse it. Once that's done, whether or not
" the user chose a file to edit, put the previous v:oldfiles value back.
"
let oldfiles = v:oldfiles
let v:oldfiles = v:oldfiles[:limit - 1]
browse oldfiles
let v:oldfiles = oldfiles
endfunction
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