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path: root/lua/user/cmp.lua
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local cmp_status, cmp = pcall(require, "cmp")
if not cmp_status then
	print("cmp.lua: loading cmp failed")
	return
end

local luasnip_status, luasnip = pcall(require, "luasnip")
if not luasnip_status then
	print("cmp.lua: loading luasnip failed")
	return
end


local check_backspace = function()
	local col = vim.fn.col "." - 1
	return col == 0 or vim.fn.getline("."):sub(col, col):match "%s"
end

--   פּ ﯟ   some other good icons
local kind_icons = {
	Text = "",
	Method = "m",
	Function = "",
	Constructor = "",
	Field = "",
	Variable = "",
	Class = "",
	Interface = "",
	Module = "",
	Property = "",
	Unit = "",
	Value = "",
	Enum = "",
	Keyword = "",
	Snippet = "",
	Color = "",
	File = "",
	Reference = "",
	Folder = "",
	EnumMember = "",
	Constant = "",
	Struct = "",
	Event = "",
	Operator = "",
	TypeParameter = "",
}

cmp.setup {
	snippet = {
		expand = function(args)
			luasnip.lsp_expand(args.body) -- For `luasnip` users.
		end,
	},
	mapping = {
		["<C-k>"] = cmp.mapping.select_prev_item(),
		["<C-j>"] = cmp.mapping.select_next_item(),
		["<C-b>"] = cmp.mapping(cmp.mapping.scroll_docs( -1), { "i", "c" }),
		["<C-f>"] = cmp.mapping(cmp.mapping.scroll_docs(1), { "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-e>"] = cmp.mapping {
			i = cmp.mapping.abort(),
			c = cmp.mapping.close(),
		},
		-- Accept currently selected item. If none selected, `select` first item.
		-- Set `select` to `false` to only confirm explicitly selected items.
		["<CR>"] = cmp.mapping.confirm { select = true },
		["<Tab>"] = cmp.mapping(function(fallback)
			if cmp.visible() then
				cmp.select_next_item()
			elseif luasnip.expandable() then
				luasnip.expand()
			elseif luasnip.expand_or_jumpable() then
				luasnip.expand_or_jump()
			elseif check_backspace() then
				fallback()
			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",
		}),
	},
	formatting = {
		fields = { "kind", "abbr", "menu" },
		format = function(entry, vim_item)
			-- Kind icons
			vim_item.kind = string.format("%s", kind_icons[vim_item.kind])
			-- vim_item.kind = string.format('%s %s', kind_icons[vim_item.kind], vim_item.kind) -- This concatonates the icons with the name of the item kind
			vim_item.menu = ({
				    nvim_lsp = "[LSP]",
				    luasnip = "[Snippet]",
				    buffer = "[Buffer]",
				    path = "[Path]",
				    nvim_lua = "[NVIM_LUA]",
			    })[entry.source.name]
			return vim_item
		end,
	},
	sources = {
		{ name = "nvim_lsp" },
		{ name = "luasnip" },
		{ name = "buffer" },
		{ name = "path" },
		{ name = "nvim_lua" },
	},
	confirm_opts = {
		behavior = cmp.ConfirmBehavior.Replace,
		select = false,
	},
	native = {
		border = { "╭", "─", "╮", "│", "╯", "─", "╰", "│" },
	},
	experimental = {
		ghost_text = true,
		native_menu = false,
	},
}