SLIRP is a vectorizing code generator aimed primarily at simplifying the process of creating modules for the S-Lang scripting language. It supports making C, C++, and Fortran code callable directly from the S-Lang interpreter and can automatically vectorize functions to take advantage of the abilities of S-Lang. SLIRP can also generate parallelizable wrappers for OpenMP-aware compilers.
Neko is a high-level dynamically typed programming language. It can be used as an embedded scripting language. It has been designed to provide a common runtime for several different languages. Learning and using Neko is very easy. You can easily extend the language with C libraries. You can also write generators from your own language to Neko and then use the Neko Runtime to compile, run, and access existing libraries. Neko is a good way for language designers to focus on design and reuse a fast and well-designed runtime, as well as existing libraries for accessing filesystem, network, databases, XML, etc. It has a compiler and a virtual machine. The virtual machine is very lightweight and well optimized. The VM can be easily embedded into any application, and your libraries can be accessed using the C foreign function interface.
This software adds Octave support to SWIG. Octave code can use C/C++ functions, variables, constants and enums, classes (member variables, methods, single/multiple inheritance, etc), and templates. Argument/result translation is completely extensible via %typemap and other declarations in interface files. Octave operators map to C++ operators, methods, or global functions. Octave code can subclass C++ types and implement their virtual methods (i.e., C++ code transparently calls Octave code). There is some support for STL containers. There are many automated tests and examples.