From 3d87579b90b986ece66bbe0cfd982839b2b86c08 Mon Sep 17 00:00:00 2001
From: niuzhaolong <nzlhetao@icloud.com>
Date: Tue, 20 May 2025 23:59:53 +0800
Subject: [PATCH] add luasnip and nvim-cmp

---
 lua/plugins/complete-func.lua | 101 ++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 lua/plugins/complete-func.lua

diff --git a/lua/plugins/complete-func.lua b/lua/plugins/complete-func.lua
new file mode 100644
index 0000000..f27ef66
--- /dev/null
+++ b/lua/plugins/complete-func.lua
@@ -0,0 +1,101 @@
+-- complete-functions etc
+-- and snippets
+--
+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"
+    },
+    {
+        "hrsh7th/nvim-cmp",
+        dependencies = {
+            "hrsh7th/cmp-buffer",      -- 缓冲区补全
+            "hrsh7th/cmp-path",        -- 文件路径补全
+            "hrsh7th/cmp-cmdline",     -- 命令行补全
+            "saadparwaiz1/cmp_luasnip", -- LuaSnip 集成
+            "L3MON4D3/LuaSnip",        -- 代码片段引擎
+            "rafamadriz/friendly-snippets", -- 预定义片段库
+            "onsails/lspkind.nvim",    -- 美化补全菜单图标
+        },
+        event = "InsertEnter",       -- 插入模式时加载
+        config = function()
+            local cmp = require("cmp")
+            local luasnip = require("luasnip")
+            local lspkind = require("lspkind")
+
+            -- 加载友好代码片段库
+            require("luasnip.loaders.from_vscode").lazy_load()
+
+            cmp.setup({
+                snippet = {
+                    expand = function(args)
+                        luasnip.lsp_expand(args.body) -- 启用 LuaSnip
+                    end,
+                },
+                mapping = cmp.mapping.preset.insert({
+                    ["<C-b>"] = cmp.mapping.scroll_docs(-4),
+                    ["<C-f>"] = cmp.mapping.scroll_docs(4),
+                    ["<C-Space>"] = cmp.mapping.complete(), -- 触发补全
+                    ["<C-e>"] = cmp.mapping.abort(),       -- 关闭补全
+                    ['<CR>'] = cmp.mapping(function(fallback)
+                        if cmp.visible() then
+                            if luasnip.expandable() then
+                                luasnip.expand()
+                            else
+                                cmp.confirm({
+                                    select = true,
+                                })
+                            end
+                        else
+                            fallback()
+                        end
+                    end),
+                    -- 超级Tab (片段跳转支持)
+                    ["<Tab>"] = cmp.mapping(function(fallback)
+                        if cmp.visible() then
+                            cmp.select_next_item()
+                        elseif luasnip.expand_or_jumpable() then
+                            luasnip.expand_or_jump()
+                        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" }),
+                }),
+                sources = cmp.config.sources({
+                    { name = "luasnip" },  -- LuaSnip 片段
+                    { name = "nvim_lsp" }, -- LSP 补全
+                    { name = "path" },     -- 文件路径
+                    { name = "buffer" },   -- 缓冲区内容
+                }),
+                -- 美化补全菜单（图标 + 类型提示）
+                formatting = {
+                    format = lspkind.cmp_format({
+                        mode = "symbol_text",
+                        maxwidth = 50,
+                        ellipsis_char = "...",
+                    }),
+                },
+            })
+
+            -- 命令行补全
+            cmp.setup.cmdline(":", {
+                mapping = cmp.mapping.preset.cmdline(),
+                sources = cmp.config.sources({
+                    { name = "cmdline" },
+                }),
+            })
+        end,
+    },
+}