call dein#add('Shougo/ddc-around')
call dein#add('shun/ddc-vim-lsp')
call dein#add('tani/ddc-fuzzy')
call dein#add('ryicoh/ddc-register')

" Use register source.
call ddc#custom#patch_global('sources', ['vsnip', 'vim-lsp', 'around', 'register'])

" Change source options
call ddc#custom#patch_global('sources', ['vsnip', 'vim-lsp', 'around', 'register'])
call ddc#custom#patch_global('sourceOptions', {
   \ '_': {
   \   'matchers': ['matcher_fuzzy'],
   \   'sorters': ['sorter_fuzzy'],
   \   'converters': ['converter_fuzzy'],
   \ },
   \ 'around': {'mark': 'aro'},
   \ 'vsnip': {'mark': 'sni'},
   \ 'vim-lsp': {'mark': 'lsp'},
   \ 'register': { 'mark': "reg" },
   \ })

" Add your preferred the mapping
inoremap <expr> <C-x><C-r> ddc#map#manual_complete(['register'])