add base snippets config

nvim/.config/nvim/lua/ink/lsp.lua

@@ -1,4 +1,10 @@
 --- [[ LSP setup]]
+---
+
+vim.lsp.enable("luals")
+vim.lsp.enable("rust")
+vim.lsp.enable("bashls")
+
 vim.lsp.config("*", {
 	capabilities = {
 		textDocument = {
@@ -9,10 +15,6 @@ vim.lsp.config("*", {
 	},
 })
 
-vim.lsp.enable("luals")
-vim.lsp.enable("rust")
-vim.lsp.enable("bashls")
-
 -- [[FOLDING SETUP
 -- Prefer LSP folding if client supports it
 vim.api.nvim_create_autocmd("LspAttach", {
@@ -83,4 +85,33 @@ vim.api.nvim_create_autocmd("LspAttach", {
 		---]]
 	end,
 })
+
+-- Expanding multiline snippets
+vim.api.nvim_create_augroup("user-snippet-expand", {})
+vim.api.nvim_create_autocmd("CompleteDone", {
+	group = "user-snippet-expand",
+	desc = "Expand LSP snippet",
+	pattern = "*",
+	callback = function(opts)
+		local comp = vim.v.completed_item
+		local item = vim.tbl_get(comp, "user_data", "nvim", "lsp", "completion_item")
+
+		-- check that we were given a snippet
+		if not item or not item.insertTextFormat or item.insertTextFormat == 1 then
+			return
+		end
+
+		-- remove the inserted text
+		local cursor = vim.api.nvim_win_get_cursor(0)
+		local line = vim.api.nvim_get_current_line()
+		local lnum = cursor[1] - 1
+		local start_char = cursor[2] - #comp.word
+		vim.api.nvim_buf_set_text(opts.buf, lnum, start_char, lnum, #line, { "" })
+
+		-- insert snippet
+		local snip_text = vim.tbl_get(item, "textEdit", "newText") or item.insertText
+		assert(snip_text, "Language server indicated it had a snippet, but no snippet text could be found!")
+		require("luasnip").lsp_expand(snip_text)
+	end,
+})
 ---AUTOCOMPLETION SETUP END]]

nvim/.config/nvim/lua/plugins/snippets.lua

@@ -0,0 +1,9 @@
+return {
+	{
+		"L3MON4D3/LuaSnip",
+		-- follow latest release.
+		version = "v2.*", -- Replace <CurrentMajor> by the latest released major (first number of latest release)
+		-- install jsregexp (optional!).
+		build = "make install_jsregexp",
+	},
+}