change mark behavior for numbers

vim/.vimrc

@@ -84,3 +84,20 @@ au BufWinLeave *.* silent! mkview
 au FileType * setlocal indentexpr=
 au FileType lua setlocal noexpandtab
 au FileType c setlocal noexpandtab
+
+function! s:SetFileMark(n) abort
+  let g:file_marks[a:n] = expand('%:p')
+endfunction
+
+function! s:JumpFileMark(n) abort
+  if has_key(g:file_marks, a:n)
+    execute 'edit ' . fnameescape(g:file_marks[a:n])
+  endif
+endfunction
+
+let g:file_marks = {}
+
+for s:n in range(0, 9)
+  execute 'nnoremap m' . s:n . ' :<C-U>call <SID>SetFileMark(' . s:n . ')<CR>'
+  execute 'nnoremap ''' . s:n . ' :<C-U>call <SID>JumpFileMark(' . s:n . ')<CR>'
+endfor