add chaiscript (#160)

packages/c/chaiscript/xmake.lua

@@ -0,0 +1,31 @@
+package("chaiscript")
+
+    set_homepage("http://chaiscript.com")
+    set_description("Header-only C++ embedded scripting language loosely based on ECMA script.")
+    set_license("BSD-3-Clause")
+
+    add_urls("https://github.com/ChaiScript/ChaiScript/archive/$(version).tar.gz",
+             "https://github.com/ChaiScript/ChaiScript.git")
+    add_versions("v6.1.0", "3ca9ba6434b4f0123b5ab56433e3383b01244d9666c85c06cc116d7c41e8f92a")
+
+    if is_plat("windows") then
+        add_cxflags("/bigobj")
+    end
+
+    on_install("windows", "linux", "android", "macosx", "iphoneos", function (package)
+        os.cp("include", package:installdir())
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <chaiscript/chaiscript.hpp>
+            double function(int i, double j) {
+                return i * j;
+            }
+            static void test() {
+                chaiscript::ChaiScript chai;
+                chai.add(chaiscript::fun(&function), "function");
+                double d = chai.eval<double>("function(3, 4.75);");
+            }
+        ]]}, {configs = {languages = "c++14"}, includes = "chaiscript/chaiscript.hpp"}))
+    end)