From ce00d0e5c9473de06847627d212c0900e55f6508 Mon Sep 17 00:00:00 2001
From: Henrik Hautakoski <henrik.hautakoski@gmail.com>
Date: Tue, 9 Dec 2025 01:50:22 +0100
Subject: [PATCH] nvim add c/cpp snippets

---
 nvim/snippets/c.lua   | 23 +++++++++++++++++++++++
 nvim/snippets/cpp.lua | 23 +++++++++++++++++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 nvim/snippets/c.lua
 create mode 100644 nvim/snippets/cpp.lua

diff --git a/nvim/snippets/c.lua b/nvim/snippets/c.lua
new file mode 100644
index 0000000..e4cdf70
--- /dev/null
+++ b/nvim/snippets/c.lua
@@ -0,0 +1,23 @@
+local ls = require("luasnip")
+local s = ls.snippet
+local t = ls.text_node
+local f = ls.function_node
+local i = ls.insert_node
+
+-- Helper: convert current filename to uppercase header guard
+local function header_guard(_, snip)
+    local name = snip.env.TM_FILENAME or "HEADER"
+    -- Replace dots and non-alphanumerics with underscores
+    name = name:gsub("%.", "_"):gsub("%W", "_"):upper()
+    return name .. "_"
+end
+
+return {
+    s("guard", {
+        t("#ifndef "), f(header_guard, {}),
+        t({ "", "#define " }), f(header_guard, {}),
+        t({ "", "", "" }),
+        i(0),
+        t({ "", "", "#endif // " }), f(header_guard, {}),
+    }),
+}
diff --git a/nvim/snippets/cpp.lua b/nvim/snippets/cpp.lua
new file mode 100644
index 0000000..e4cdf70
--- /dev/null
+++ b/nvim/snippets/cpp.lua
@@ -0,0 +1,23 @@
+local ls = require("luasnip")
+local s = ls.snippet
+local t = ls.text_node
+local f = ls.function_node
+local i = ls.insert_node
+
+-- Helper: convert current filename to uppercase header guard
+local function header_guard(_, snip)
+    local name = snip.env.TM_FILENAME or "HEADER"
+    -- Replace dots and non-alphanumerics with underscores
+    name = name:gsub("%.", "_"):gsub("%W", "_"):upper()
+    return name .. "_"
+end
+
+return {
+    s("guard", {
+        t("#ifndef "), f(header_guard, {}),
+        t({ "", "#define " }), f(header_guard, {}),
+        t({ "", "", "" }),
+        i(0),
+        t({ "", "", "#endif // " }), f(header_guard, {}),
+    }),
+}