Support for Lua added - patch from Mark Gossage

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

SWIG/Examples/lua/simple/Makefile

@@ -0,0 +1,18 @@
+TOP        = ../..
+SWIG       = $(TOP)/../swig
+SRCS       = example.c
+TARGET     = example
+INTERFACE  = example.i
+
+all::
+	$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
+	TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' lua
+
+static::
+	$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
+	TARGET='mylua' INTERFACE='$(INTERFACE)' lua_static
+
+clean::
+	$(MAKE) -f $(TOP)/Makefile lua_clean
+
+check: all

SWIG/Examples/lua/simple/example.c

@@ -0,0 +1,18 @@
+/* File : example.c */
+
+/* A global variable */
+double Foo = 3.0;
+
+/* Compute the greatest common divisor of positive integers */
+int gcd(int x, int y) {
+  int g;
+  g = y;
+  while (x > 0) {
+    g = x;
+    x = y % x;
+    y = g;
+  }
+  return g;
+}
+
+

SWIG/Examples/lua/simple/example.i

@@ -0,0 +1,7 @@
+/* File : example.i */
+%module example
+
+%inline %{
+extern int    gcd(int x, int y);
+extern double Foo;
+%}

SWIG/Examples/lua/simple/runme.lua

@@ -0,0 +1,34 @@
+-- file: runme.lua
+
+-- importing (lua doesnt have a nice way to do this)
+if example==nil then 
+	assert(loadlib("example.dll","Example_Init"))()
+end
+
+-- Call our gcd() function
+print("hello world")
+
+x = 42
+y = 105
+g = example.gcd(x,y)
+print("The gcd of",x,"and",y,"is",g)
+
+-- Manipulate the Foo global variable
+
+-- Output its current value
+print("Foo = ", example.Foo)
+
+-- Change its value
+example.Foo = 3.1415926
+
+-- See if the change took effect
+print("Foo = ", example.Foo)
+
+
+
+
+
+
+
+
+