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local cmp = require("cmp")
local mapping = cmp.mapping
local luasnip = require("luasnip")
local M = {}
local has_words_before = function()
local line, col = unpack(vim.api.nvim_win_get_cursor(0))
return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil
end
local feedkey = function(key, mode)
vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes(key, true, true, true), mode, true)
end
M.config = {
snippet = {
expand = function(args)
vim.fn["vsnip#anonymous"](args.body)
luasnip.lsp_expand(args.body)
end,
},
mapping = mapping.preset.insert({
["<C-Space>"] = mapping.complete(),
["<CR>"] = mapping.confirm({
select = true,
}),
["<Tab>"] = cmp.mapping(function(fallback)
if cmp.visible() then
cmp.select_next_item()
elseif luasnip.expand_or_jumpable() then
luasnip.expand_or_jump()
elseif vim.fn["vsnip#available"](1) == 1 then
feedkey("<Plug>(vsnip-expand-or-jump)", "")
elseif has_words_before() then
cmp.complete()
else
fallback()
end
end, { "i", "s" }),
["<S-Tab>"] = cmp.mapping(function(fallback)
if cmp.visible() then
cmp.select_prev_item()
elseif luasnip.jumpable(-1) then
luasnip.jump(-1)
elseif vim.fn["vsnip#available"](-1) == 1 then
feedkey("<Plug>(vsnip-jump-prev)", "")
else
fallback()
end
end, { "i", "s" }),
}),
sources = cmp.config.sources({
{ name = "nvim_lsp" },
{ name = "luasnip" },
{ name = "vsnip" },
}, {
{ name = "buffer" },
}),
}
local capabilities = require("cmp_nvim_lsp").update_capabilities(vim.lsp.protocol.make_client_capabilities())
capabilities.textDocument.completion.completionItem.snippetSupport = true
M.capabilities = capabilities
M.on_attach = function(_, bufnr)
vim.api.nvim_buf_set_option(bufnr, "omnifunc", "v:lua.vim.lsp.omnifunc")
end
return M
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