notes/config/nvim/lua/editor/cmp.lua

local cmp_status_ok, cmp = pcall(require, "cmp")
if not cmp_status_ok then
  vim.notify("cmp load error")
  return
end

local ok, luasnip = pcall(require, "luasnip")
if not ok then
  vim.notify("luasnip load error")
  return
end

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

require("luasnip.loaders.from_vscode").lazy_load()

cmp.setup({
  -- enabled = function()
  --   if
  --     require("cmp.config.context").in_treesitter_capture("comment") == true
  --     or require("cmp.config.context").in_syntax_group("Comment")
  --   then
  --     return false
  --   else
  --     return true
  --   end
  -- end,
  enabled = true,

  preselect = cmp.PreselectMode.Item,
  window = {
    completion = cmp.config.window.bordered(),
    documentation = cmp.config.window.bordered(),
  },
  formatting = {
    fields = { "kind", "abbr", "menu" },
    format = function(entry, vim_item)
      -- local lspkind_icons = {
      --   Text = "",
      --   Method = "",
      --   Function = "",
      --   Constructor = "",
      --   Field = "ﰠ",
      --   Variable = "",
      --   Class = "ﴯ",
      --   Interface = "",
      --   Module = "",
      --   Property = "ﰠ",
      --   Unit = "塞",
      --   Value = "",
      --   Enum = "",
      --   Keyword = "",
      --   Snippet = "",
      --   Color = "",
      --   File = "",
      --   Reference = "",
      --   Folder = "",
      --   EnumMember = "",
      --   Constant = "",
      --   Struct = "פּ",
      --   Event = "",
      --   Operator = "",
      --   TypeParameter = " ",
      --   Robot = "ﮧ",
      --   Smiley = "ﲃ",
      --   Note = " ",
      -- }

      --   פּ ﯟ   some other good icons
      local lspkind_icons = {
        Text = " 󰉿 ",
        Method = " 󰆧 ",
        Function = " 󰡱 ",
        Constructor = "  ",
        Field = " 󰜢 ",
        Variable = " 󰀫 ",
        Class = " 󰠱 ",
        Interface = "  ",
        Module = "  ",
        Property = " 󰜢 ",
        Unit = " 󰑭 ",
        Value = " 󰎠 ",
        Enum = "  ",
        Keyword = " 󰌋 ",
        Snippet = "  ",
        Color = " 󰏘 ",
        File = " 󰈙 ",
        Reference = " 󰈇 ",
        Folder = " 󰉋 ",
        EnumMember = "  ",
        Constant = " 󰏿 ",
        Struct = " 󰙅 ",
        Event = "  ",
        Operator = " 󰆕 ",
        TypeParameter = " 󰅲 ",
        Smiley = "☺",
        Note = "🗈",
      }

      local meta_type = vim_item.kind
      -- load lspkind icons
      vim_item.kind = lspkind_icons[vim_item.kind] .. ""
      if entry.source.name == "cmp_tabnine" then
        vim_item.kind = lspkind_icons["Robot"]
        -- vim_item.kind_hl_group = "CmpItemKindTabnine"
      end

      if entry.source.name == "emoji" then
        vim_item.kind = lspkind_icons["Smiley"]
        vim_item.kind_hl_group = "CmpItemKindEmoji"
      end

      if entry.source.name == "look" then
        vim_item.kind = lspkind_icons["Note"]
        -- vim_item.kind_hl_group = "CmpItemKindEmoji"
      end
      vim_item.menu = ({
        buffer = "[Buffer]",
        nvim_lsp = meta_type,
        path = "[Path]",
        luasnip = "[LuaSnip]",
        cmp_tabnine = "[TN]",
        emoji = "[Emoji]",
        look = "[Dict]",
      })[entry.source.name]

      return vim_item
    end,
  },

  mapping = {
    -- ["<C-b>"] = cmp.mapping(cmp.mapping.scroll_docs(-4), { "i", "c" }),
    -- ["<C-f>"] = cmp.mapping(cmp.mapping.scroll_docs(4), { "i", "c" }),
    -- ["<C-Space>"] = cmp.mapping(cmp.mapping.complete(), { "i", "c" }),
    ["<C-y>"] = cmp.config.disable, -- Specify `cmp.config.disable` if you want to remove the default `<C-y>` mapping.
    ["<C-b>"] = cmp.config.disable, -- Specify `cmp.config.disable` if you want to remove the default `<C-y>` mapping.
    -- ["<C-f>"] = cmp.config.disable, -- Specify `cmp.config.disable` if you want to remove the default `<C-y>` mapping.
    ["<C-e>"] = cmp.mapping({
      i = cmp.mapping.abort(),
      c = cmp.mapping.close(),
    }),
    -- ["<C-d>"] = cmp.mapping(function()
    --     cmp.close()
    -- end, { "i", "s" }),
    ["<C-d>"] = cmp.mapping(function(fallback)
      -- cmp.close()
      if luasnip.expand_or_jumpable() then
        luasnip.expand_or_jump()
        -- if luasnip.jumpable(1) then
        --   luasnip.jump(1)
      else
        fallback()
      end
    end, { "i", "s" }),

    ["<C-f>"] = cmp.mapping(function(fallback)
      -- cmp.close()
      if luasnip.jumpable(-1) then
        luasnip.jump(-1)
      else
        fallback()
      end
    end, { "i", "s" }),

    ["<CR>"] = cmp.mapping.confirm({
      select = true,
      -- cmp.close()
    }),

    ["<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()
      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)
      else
        fallback()
      end
    end, { "i", "s" }),
  },
  -- You can set mappings if you want
  -- mapping = insert_map,
  snippet = {
    expand = function(args)
      require("luasnip").lsp_expand(args.body)
    end,
  },

  sources = {
    { name = "nvim_lsp", priority = 50 },
    { name = "cmp_tabnine", priority = 90 },
    { name = "luasnip", priority = 50 },
    { name = "path", priority = 99 },
    { name = "buffer", priority = 50, max_item_count = 5 },
    { name = "emoji", priority = 50 },
    { name = "nvim_lsp_signature_help", priority = 50 },
    { name = "render-markdown", priority = 50 },
    {
      name = "look",
      keyword_length = 5,
      max_item_count = 5,
      option = {
        convert_case = true,
        loud = true,
        --dict = "/usr/share/dict/words"
      },
    },
  },
})

cmp.setup.filetype({ "TelescopePrompt" }, {
  sources = {},
})

cmp.setup.filetype({ "vim", "markdown" }, {
  sources = {
    {
      name = "look",
      keyword_length = 5,
      max_item_count = 5,
      option = {
        convert_case = true,
        loud = true,
        --dict = "/usr/share/dict/words"
      },
    },
  },
})

-- require("cmp").setup.cmdline(":", {
--   sources = {
--     { name = "cmdline", max_item_count = 10 },
--   },
-- })
-- require("cmp").setup.cmdline("/", {
--   sources = {
--     { name = "buffer" },
--   },
-- })