The Neosnippet plug-In adds snippet support to Vim. Snippets are small templates for commonly used code that you can fill in on the fly. To use snippets can increase your productivity in Vim a lot. The functionality of this plug-in is quite similar to plug-ins like snipMate.vim. But since you can choose snippets with the deoplete interface, you might have less trouble using them, because you do not have to remember each snippet name.

To install neosnippet and other Vim plug-ins it is recommended to use one of the popular package managers for Vim, rather than installing by drag and drop all required files into your .vim folder.

Notes:

• Vim 7.4 or above is needed.

• Vim 8.0 or above or neovim is recommended.

• Default snippets files are available in: neosnippet-snippets

• Installing default snippets is optional. If choose not to install them, you must deactivate them with g:neosnippet#disable_runtime_snippets.

• deoplete is not required to use neosnippet, but it's highly recommended.

• Extra snippets files can be found in: vim-snippets.

```vim
Plugin 'Shougo/deoplete.nvim'
if !has('nvim')
  Plugin 'roxma/nvim-yarp'
  Plugin 'roxma/vim-hug-neovim-rpc'
endif

Plugin 'Shougo/neosnippet.vim'
Plugin 'Shougo/neosnippet-snippets'
```

```vim
call dein#add('Shougo/deoplete.nvim')
if !has('nvim')
  call dein#add('roxma/nvim-yarp')
  call dein#add('roxma/vim-hug-neovim-rpc')
endif
let g:deoplete#enable_at_startup = 1

call dein#add('Shougo/neosnippet.vim')
call dein#add('Shougo/neosnippet-snippets')
```

```vim
if has('nvim')
  Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
else
  Plug 'Shougo/deoplete.nvim'
  Plug 'roxma/nvim-yarp'
  Plug 'roxma/vim-hug-neovim-rpc'
endif
let g:deoplete#enable_at_startup = 1

Plug 'Shougo/neosnippet.vim'
Plug 'Shougo/neosnippet-snippets'
```

This is an example ~/.vimrc configuration for Neosnippet. It is assumed you already have deoplete configured. With the settings of the example, you can use the following keys:

• C-k to select-and-expand a snippet from the deoplete popup (Use C-n and C-p to select it). C-k can also be used to jump to the next field in the snippet.

• Tab to select the next field to fill in the snippet.

" Plugin key-mappings.
" Note: It must be "imap" and "smap".  It uses <Plug> mappings.
imap <C-k>     <Plug>(neosnippet_expand_or_jump)
smap <C-k>     <Plug>(neosnippet_expand_or_jump)
xmap <C-k>     <Plug>(neosnippet_expand_target)

" SuperTab like snippets behavior.
" Note: It must be "imap" and "smap".  It uses <Plug> mappings.
"imap <expr><TAB>
" \ pumvisible() ? "\<C-n>" :
" \ neosnippet#expandable_or_jumpable() ?
" \    "\<Plug>(neosnippet_expand_or_jump)" : "\<TAB>"
smap <expr><TAB> neosnippet#expandable_or_jumpable() ?
\ "\<Plug>(neosnippet_expand_or_jump)" : "\<TAB>"

" For conceal markers.
if has('conceal')
  set conceallevel=2 concealcursor=niv
endif

If you want to use a different collection of snippets than the built-in ones, then you can set a path to the snippets with the g:neosnippet#snippets_directory variable (e.g Honza's Snippets)

But if you enable g:neosnippet#enable_snipmate_compatibility, neosnippet will load snipMate snippets from runtime path automatically.

" Enable snipMate compatibility feature.
let g:neosnippet#enable_snipmate_compatibility = 1

" Tell Neosnippet about the other snippets
let g:neosnippet#snippets_directory='~/.vim/bundle/vim-snippets/snippets'