Add frequency func

autoload/SpaceVim.vim

@@ -85,6 +85,9 @@ let g:spacevim_plugin_bundle_dir
 "   let g:spacevim_realtime_leader_guide = 1
 " <
 let g:spacevim_realtime_leader_guide   = 0
+""
+" Enable/Disable key frequency catching of SpaceVim.
+let g:spacevim_enable_key_frequency = 1
 let g:spacevim_autocomplete_method     = ''
 let g:spacevim_enable_cursorcolumn     = 0
 ""

autoload/SpaceVim/mapping/frequency.vim

@@ -0,0 +1,27 @@
+let s:data = {}
+
+function! SpaceVim#mapping#frequency#update(key) abort
+    if has_key(s:data, a:key)
+        let s:data[a:key] += 1
+    else
+        let s:data[a:key] = 1
+    endif
+endfunction
+
+function! SpaceVim#mapping#frequency#view(keys) abort
+    if type(a:keys) == 1
+        echo 'The frequency of ' . a:keys . ' is ' . s:get(a:keys)
+    elseif type(a:keys) == 3
+        for key in a:keys
+            call SpaceVim#mapping#frequency#view(key)
+        endfor
+    endif
+endfunction
+
+function! s:get(key) abort
+    if has_key(s:data, a:key)
+        return s:data[a:key]
+    else
+        return 0
+    endif
+endfunction

doc/SpaceVim.txt

@@ -116,6 +116,9 @@ Enable/Disable realtime leader guide. Default is 0.
   let g:spacevim_realtime_leader_guide = 1
 <
 
+                                             *g:spacevim_enable_key_frequency*
+Enable/Disable key frequency catching of SpaceVim.
+
                                                    *g:spacevim_enable_neomake*
 SpaceVim default checker is neomake. If you want to use syntastic, use:
 >