*DO NOT MERGE* sample snippet support

[prabirshrestha]

Do not merge. This is me trying out how we can support snippets in vim-lsp.
This is using https://github.com/andreyorst/SimpleSnippets-snippets but we should allow anyone to hook into vim-lsp so they can easily use any snippet plugins they use.

Plug 'andreyorst/SimpleSnippets.vim'
Plug 'prabirshrestha/async.vim'
Plug 'prabirshrestha/vim-lsp'
Plug 'prabirshrestha/asyncomplete.vim'
Plug 'prabirshrestha/asyncomplete-lsp.vim'

autocmd! CompleteDone * if pumvisible() == 0 | pclose | endif
let g:asyncomplete_auto_popup = 1

let g:SimpleSnippets_dont_remap_tab = 1
inoremap <silent><expr><Tab> pumvisible() ? "\<c-n>" :
    \SimpleSnippets#isExpandableOrJumpable() ?
    \"<Esc>:call SimpleSnippets#expandOrJump()<Cr>" :
    \"\<Tab>"
inoremap <silent><expr><S-Tab> pumvisible() ? "\<c-p>" :
    \SimpleSnippets#isJumpable() ?
    \"<Esc>:call SimpleSnippets#jumpBackwards()<Cr>" :
    \"\<S-Tab>"
inoremap <silent><expr><Cr> pumvisible() ?
    \SimpleSnippets#isExpandableOrJumpable() ?
    \"\<Esc>:call SimpleSnippets#expandOrJump()\<Cr>" :
    \"\<Cr>" : "\<Cr>"
snoremap <silent><expr><Tab> SimpleSnippets#isExpandableOrJumpable() ?
    \"<Esc>:call SimpleSnippets#expandOrJump()<Cr>" : "\<Tab>"
snoremap <silent><expr><S-Tab> SimpleSnippets#isJumpable() ?
    \"<Esc>:call SimpleSnippets#jumpBackwards()<Cr>" :
    \"\<S-Tab>"

if executable('cquery')
  au User lsp_setup call lsp#register_server({
    \ 'name': 'cquery',
    \ 'cmd': {server_info->['cquery']},
    \ 'root_uri': {server_info->lsp#utils#path_to_uri(lsp#utils#find_nearest_parent_file_directory(lsp#utils#get_buffer_path(), 'compile_commands.json'))},
    \ 'initialization_options': { 'cacheDirectory':  '/tmp/cquery' },
    \ 'whitelist': ['c', 'cpp', 'objc', 'objcpp'],
    \ })
endif

[prabirshrestha]

Seems like SimpleSnippets is no longer supported. Might be need to try a different snippet plugin that supports LSP spec.

[prabirshrestha]

Closing in favor of #306