Initial skeleton of PATCH.LUA

Author: Lethja

demo/xtra/PATCH.LUA

@@ -0,0 +1,28 @@
+#!/usr/bin/env lua
+
+local function patch(p)
+	local pf, e = io.open(p)
+	if not pf then print(e) os.exit(1) end
+	for l in pf:lines() do
+		local ls = l:sub(1, 1)
+		if ls == "+" then
+			if l:sub(2,4) == "++ " then
+				--TODO: New file
+			else
+				--TODO: Add Line
+			end
+		elseif ls == '-' then
+			if l:sub(2,4) == "-- " then
+				--TODO: Old file
+			else
+				--TODO: Del Line
+			end
+		elseif ls == ' ' then
+			--TODO: context line verification
+		end
+	end
+	pf:close()
+end
+
+if #arg < 1 then os.exit(1) end
+patch(arg[1], arg[2])