feat: nvim with lsp

hm-imports/nvim/config/lua/plugin/cmp.lua

@@ -0,0 +1,52 @@
+local cmp = require 'cmp'
+local lspkind = require 'lspkind'
+local luasnip = require 'luasnip'
+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
+
+cmp.setup({
+  snippet = {
+    expand = function(args)
+      require('luasnip').lsp_expand(args.body)
+    end,
+  },
+  mapping = {
+    ['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
+    ["<Tab>"] = cmp.mapping(function(fallback)
+      if cmp.visible() then
+        cmp.select_next_item()
+      elseif luasnip.expand_or_jumpable() then
+        luasnip.expand_or_jump()
+      elseif has_words_before() then
+        cmp.complete()
+      else
+        fallback() -- The fallback function sends a already mapped key. In this case, it's probably `<Tab>`.
+      end
+    end, { "i", "s" }),
+    ["<S-Tab>"] = cmp.mapping(function()
+      if cmp.visible() then
+        cmp.select_prev_item()
+      elseif luasnip.jumpable(-1) then
+        luasnip.jump(-1)
+      end
+    end, { "i", "s" }),
+  },
+  sources = cmp.config.sources({
+    { name = "nvim_lsp" },
+    { name = "luasnip" },
+  }, { name = "buffer" }),
+  formatting = {
+  format = lspkind.cmp_format({
+    mode = "symbol_text",
+    menu = ({
+      buffer = "[Buffer]",
+      nvim_lsp = "[LSP]",
+      luasnip = "[LuaSnip]",
+      nvim_lua = "[Lua]",
+      latex_symbols = "[Latex]",
+    })
+  }),
+},
+})