--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/LibStub.lua	Fri Nov 07 23:55:33 2008 +0000
@@ -0,0 +1,30 @@
+-- LibStub is a simple versioning stub meant for use in Libraries.  http://www.wowace.com/wiki/LibStub for more info
+-- LibStub is hereby placed in the Public Domain Credits: Kaelten, Cladhaire, ckknight, Mikk, Ammo, Nevcairiel, joshborke
+local LIBSTUB_MAJOR, LIBSTUB_MINOR = "LibStub", 2  -- NEVER MAKE THIS AN SVN REVISION! IT NEEDS TO BE USABLE IN ALL REPOS!
+local LibStub = _G[LIBSTUB_MAJOR]
+
+if not LibStub or LibStub.minor < LIBSTUB_MINOR then
+	LibStub = LibStub or {libs = {}, minors = {} }
+	_G[LIBSTUB_MAJOR] = LibStub
+	LibStub.minor = LIBSTUB_MINOR
+	
+	function LibStub:NewLibrary(major, minor)
+		assert(type(major) == "string", "Bad argument #2 to `NewLibrary' (string expected)")
+		minor = assert(tonumber(strmatch(minor, "%d+")), "Minor version must either be a number or contain a number.")
+		
+		local oldminor = self.minors[major]
+		if oldminor and oldminor >= minor then return nil end
+		self.minors[major], self.libs[major] = minor, self.libs[major] or {}
+		return self.libs[major], oldminor
+	end
+	
+	function LibStub:GetLibrary(major, silent)
+		if not self.libs[major] and not silent then
+			error(("Cannot find a library instance of %q."):format(tostring(major)), 2)
+		end
+		return self.libs[major], self.minors[major]
+	end
+	
+	function LibStub:IterateLibraries() return pairs(self.libs) end
+	setmetatable(LibStub, { __call = LibStub.GetLibrary })
+end