Support for Lua added - patch from Mark Gossage

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@7365 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/lua/class/runme.lua

@@ -0,0 +1,57 @@
+-- file: runme.lua
+
+-- This file illustrates class C++ interface generated
+-- by SWIG.
+
+-- importing (lua doesnt have a nice way to do this)
+if example==nil then 
+	assert(loadlib("example.dll","Example_Init"))()
+end
+
+----- Object creation -----
+
+print("Creating some objects:")
+c = example.Circle(10)
+print("    Created circle", c)
+s = example.Square(10)
+print("    Created square", s)
+
+----- Access a static member -----
+
+print("\nA total of",example.Shape_nshapes,"shapes were created")
+
+----- Member data access -----
+
+-- Set the location of the object
+
+c.x = 20
+c.y = 30
+
+s.x = -10
+s.y = 5
+
+print("\nHere is their current position:")
+print(string.format("    Circle = (%f, %f)",c.x,c.y))
+print(string.format("    Square = (%f, %f)",s.x,s.y))
+
+----- Call some methods -----
+
+print("\nHere are some properties of the shapes:")
+for _,o in pairs({c,s}) do
+      print("   ", o)
+      print("        area      = ", o:area())
+      print("        perimeter = ", o:perimeter())
+end
+
+print("\nGuess I'll clean up now")
+
+-- Note: this invokes the virtual destructor
+c=nil
+s=nil
+s = 3
+
+-- call gc to make sure they are collected
+collectgarbage()
+
+print(example.Shape_nshapes,"shapes remain")
+print "Goodbye"