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Snippet plugin for vim/nvim that supports LSP/VSCode's snippet format.

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DasGandlaf/vim-vsnip

 
 

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vim-vsnip

VSCode(LSP)'s snippet feature in vim.

Features

Concept

  • Pure Vim script
  • Well tested (neovim/0.4.4, vim/8.0.1567)
  • Support VSCode snippet format
  • Provide integration with many plugins

Related repository

friendly-snippets - Set of preconfigured snippets for all kind of programming languages that integrates really well with vim-vsnip, so all users can benefit from them and not to worry about setting up snippets on their own.

Usage

1. Install

You can use your favorite plugin managers to install this plugin.

Plug 'hrsh7th/vim-vsnip'
Plug 'hrsh7th/vim-vsnip-integ'

call dein#add('hrsh7th/vim-vsnip')
call dein#add('hrsh7th/vim-vsnip-integ')

NeoBundle 'hrsh7th/vim-vsnip'
NeoBundle 'hrsh7th/vim-vsnip-integ'

2. Setting

" NOTE: You can use other key to expand snippet.

" Expand
imap <expr> <C-j>   vsnip#expandable()  ? '<Plug>(vsnip-expand)'         : '<C-j>'
smap <expr> <C-j>   vsnip#expandable()  ? '<Plug>(vsnip-expand)'         : '<C-j>'

" Expand or jump
imap <expr> <C-l>   vsnip#available(1)  ? '<Plug>(vsnip-expand-or-jump)' : '<C-l>'
smap <expr> <C-l>   vsnip#available(1)  ? '<Plug>(vsnip-expand-or-jump)' : '<C-l>'

" Jump forward or backward
imap <expr> <Tab>   vsnip#jumpable(1)   ? '<Plug>(vsnip-jump-next)'      : '<Tab>'
smap <expr> <Tab>   vsnip#jumpable(1)   ? '<Plug>(vsnip-jump-next)'      : '<Tab>'
imap <expr> <S-Tab> vsnip#jumpable(-1)  ? '<Plug>(vsnip-jump-prev)'      : '<S-Tab>'
smap <expr> <S-Tab> vsnip#jumpable(-1)  ? '<Plug>(vsnip-jump-prev)'      : '<S-Tab>'

" Select or cut text to use as $TM_SELECTED_TEXT in the next snippet.
" See https://github.com/hrsh7th/vim-vsnip/pull/50
nmap        s   <Plug>(vsnip-select-text)
xmap        s   <Plug>(vsnip-select-text)
nmap        S   <Plug>(vsnip-cut-text)
xmap        S   <Plug>(vsnip-cut-text)

" If you want to use snippet for multiple filetypes, you can `g:vsnip_filetypes` for it.
let g:vsnip_filetypes = {}
let g:vsnip_filetypes.javascriptreact = ['javascript']
let g:vsnip_filetypes.typescriptreact = ['typescript']

3. Create your own snippet

Snippet file will store to g:vsnip_snippet_dir per filetype.

  1. Open some file (example: Sample.js)
  2. Invoke :VsnipOpen command.
  3. Edit snippet.
{
  "Class": {
    "prefix": ["class"],
    "body": [
      "/**",
      " * @author ${VIM:\\$USER}",
      " */",
      "class $1 ${2:extends ${3:Parent} }{",
      "\tconstructor() {",
      "\t\t$0",
      "\t}",
      "}"
    ],
    "description": "Class definition template."
  }
}

The snippet format was described in here or here.

Recipe

$TM_FILENAME_BASE

You can insert the filename via fname\<Plug>(vsnip-expand).

{
  "filename": {
    "prefix": ["fname"],
    "body": "$TM_FILENAME_BASE"
  }
}

Log $TM_SELECTED_TEXT

You can fill $TM_SELECTED_TEXT by <Plug>(vsnip-select-text) or <Plug>(vsnip-cut-text).

{
  "log": {
    "prefix": ["log"],
    "body": "console.log(${1:$TM_SELECTED_TEXT});"
  }
}

Insert environment vars

You can insert value by Vim script expression.

{
  "user": {
    "prefix": "username",
    "body": "${VIM:\\$USER}"
  }
}

Insert UUID via python

You can insert UUID via python.

{
  "uuid": {
    "prefix": "uuid",
    "body": [
      "${VIM:system('python -c \"import uuid, sys;sys.stdout.write(str(uuid.uuid4()))\"')}"
    ]
  }
}

NOTE: $VIM is only in vsnip. So that makes to lost the snippet portability.

DEMO

LSP integration

Nested snippet expansion

<Plug(vsnip-cut-text) with $TM_SELECTED_TEXT

<Plug&rt;(vsnip-cut-text) with $TM_SELECTED_TEXT

Development

How to run test it?

You can run npm run test after install vim-themis.

How sync same tabstop placeholders?

  1. compute the user-diff ... s:Session.flush_changes
  2. reflect the user-diff to snippet ast ... s:Snippet.follow
  3. reflect the sync-diff to buffer content ... s:Snippet.sync & s:Session.flush_changes

About

Snippet plugin for vim/nvim that supports LSP/VSCode's snippet format.

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