http://www.swig.org/index.html
SWIG（Simplified Wrapper and Interface Generator）给现有程序增加其他语言（脚本语言）的支持接口，似乎是很好很强大。给PolyDef和XGraph加Lua接口可能就没那么麻烦了。
现在SWIG的最新版本是1.3.35，2008/04/07发布。
SWIG is a software development tool that connects programs written in C and C++ with a variety of high-level programming languages. SWIG is used with different types of languages including common scripting languages such as Perl, PHP, Python, Tcl and Ruby. The list of supported languages also includes non-scripting languages such as C#, Common Lisp (CLISP, Allegro CL, CFFI, UFFI), Java, Lua, Modula-3, OCAML, Octave and R. Also several interpreted and compiled Scheme implementations (Guile, MzScheme, Chicken) are supported. SWIG is most commonly used to create high-level interpreted or compiled programming environments, user interfaces, and as a tool for testing and prototyping C/C++ software. SWIG can also export its parse tree in the form of XML and Lisp s-expressions. SWIG may be freely used, distributed, and modified for commercial and non-commercial use.
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- SwigWiki!