Add key binding for clear saved buffers

autoload/SpaceVim/api/vim/buffer.vim

@@ -40,6 +40,18 @@ function! s:self.listed_buffers() abort
     return filter(range(1, bufnr('$')), 'buflisted(v:val)')
 endfunction
 
+
+function! s:self.filter_do(expr) abort
+    let buffers = range(1, bufnr('$'))
+    for f_expr in a:expr.expr
+        let buffers = filter(buffers, f_expr)
+    endfor
+    for b in buffers
+        exe printf(a:expr.do, b)
+    endfor
+endfunction
+
+
 fu! SpaceVim#api#vim#buffer#get() abort
    return deepcopy(s:self)
 endf

autoload/SpaceVim/layers/default.vim

@@ -124,6 +124,7 @@ function! SpaceVim#layers#default#config() abort
                 \ 'call SpaceVim#mapping#kill_visible_buffer_choosewin()',
                 \ 'kill-this-buffer', 1)
     call SpaceVim#mapping#space#def('nnoremap', ['b', '<C-d>'], 'call SpaceVim#mapping#clearBuffers()', 'kill-other-buffers', 1)
+    call SpaceVim#mapping#space#def('nnoremap', ['b', 'c'], 'call SpaceVim#mapping#clear_saved_buffers()', 'clear all saved buffers', 1)
     call SpaceVim#mapping#space#def('nnoremap', ['b', 'e'], 'call call('
                 \ . string(s:_function('s:safe_erase_buffer')) . ', [])',
                 \ 'safe-erase-buffer', 1)

autoload/SpaceVim/mapping.vim

@@ -1,4 +1,8 @@
 scriptencoding utf-8
+
+let s:BUFFER = SpaceVim#api#import('vim#buffer')
+
+
 let g:unite_source_menu_menus =
       \ get(g:,'unite_source_menu_menus',{})
 let g:unite_source_menu_menus.CustomKeyMaps = {'description':
@@ -200,4 +204,18 @@ function! SpaceVim#mapping#menu(desc, key, cmd) abort
         \ a:cmd])
 endfunction
 
+function! SpaceVim#mapping#clear_saved_buffers()
+  call s:BUFFER.filter_do(
+        \ {
+        \ 'expr' : [
+        \ 'buflisted(v:val)',
+        \ 'index(tabpagebuflist(), v:val) == -1',
+        \ 'getbufvar(v:val, "&mod") == 0',
+        \ ],
+        \ 'do' : 'bd %d'
+        \ }
+        \ )
+endfunction
+
+
 " vim:set et sw=2 cc=80: