Liberty Eiffel is a compiler for the Eiffel programming language. It continues the development of SmartEiffel, the GNU Eiffel Compiler. It is a complete, small, and fast Eiffel compiler, including an Eiffel to C compiler, documentation tools, a pretty printer, a debugger, and various other tools. It also includes a large library of classes distributed under the terms of the MIT/X Consortium License and a comprehensive set of wrappers/bindings for widespread free software libraries. Eiffel is an advanced object-oriented programming language that emphasizes the design and construction of high-quality and reusable software.
Metacza is a language and its compiler which produces output in the C++ Meta Template Language. Its concise syntax makes Meta Template Programming much easier. Metacza allows you to write programs using boost::mpl, and to produce C++ header files that can be used on their own. Programming without boost::mpl is also supported. Metacza is a higher order language with closures, let, and lambda.
Orc is a library and set of tools for compiling and executing very simple programs that operate on arrays of data. The "language" is a generic assembly language that represents many of the features available in SIMD architectures, including saturated addition and subtraction, and many arithmetic operations.
Sappeur is a safe and efficient programming language. The memory safety of Sappeur programs is equivalent to Java or .NET without having the performance penalties of those languages. This is implemented with smart pointers and stack allocation of objects and arrays. Also, arrays of objects and synchronous destructors are possible. Sappeur executables are native code and do not use a garbage collector. The safety properties of Sappeur are assured by a proper type system (which forbids weird pointer casts for example) and runtime checks. This is true for both single- and multithreaded programs. The Sappeur compiler translates programs into safe C++ programs, which makes integration with existing C++ code simple. Finally, Sappeur technology erects another layer of defense against cyber threats.
Shannon is a general purpose stream-oriented programming language; it is concise and yet feature rich. Streams, FIFOs, and Unix shell-style pipes are first-class concepts in the language. You can connect functions and FIFOs within your program similar to the way you connect processes with pipes in the Unix shell. These constructs in Shannon, however, are highly efficient as no true multitasking is involved, and at the same time they allow you to write more concise and readable code for chained data processing. State is a special type of function that returns a reference to its own local data and any nested functions it may have. In effect, states implement classes in terms of OOP, and yet classes per se aren't part of the language. A special type of modules marked as "persistent" is an effective replacement for databases and SQL. This allows you to access persistent shared data using native Shannon constructs, eliminating the need for an extra query language. Intuitive and minimalist syntax and semantics are used. Particularly, "minimalist semantics" means less things to remember and more possibilities. Shannon is statically-typed, although it provides dynamic typing facilities as well.
The TI-BASIC Compiler allows you to write TI-BASIC programs for the Texas Instruments TI-83 and TI-84+ calculators using your computer instead of the calculator's keyboard. This allows you to spend more time writing code than navigating menus or trying to scroll around the tiny screen on the calculator.
Theano is a Python library that allows you to define, optimize, and evaluate mathematical expressions involving multi-dimensional arrays efficiently. Theano features tight integration with numpy, transparent use of a GPU, efficient symbolic differentiation, speed and stability optimizations, dynamic C code generation, and extensive unit-testing and self-verification. Theano has been powering large-scale computationally intensive scientific investigations since 2007. But it is also approachable enough to be used in the classroom (IFT6266 at the University of Montreal).
UniCC, (Universal Compiler-Compiler) is a powerful LALR(1) parser generator and language development system for computer professionals. It serves as an all-round design and build tool assisting compiler writers in any parsing-related task, including production quality compiler construction and the implementation of domain specific languages. It unifies an integrated generator for lexical analyzers and a powerful LALR(1) parser generator into one software solution. The programming interface is a rich, extendable, and innovative BNF-based grammar definition language for expressing context-free grammars.