Stab is a multi-paradigm, type-safe programming language. It will be familiar to Java and C# programmers. The compiler produces Java bytecode. Stab integrates features like lambda expressions, iterator blocks, language integrated queries, and more. It can directly use any existing Java libraries, and libraries written in Stab are directly usable from Java.
Java Cobol Lexer is a library that takes a Cobol source program and return it as a list of lexical tokens. You can use it, for example, as part of a Cobol compiler, pre-processor, pretty formatter, static code checker, or syntax highlighter. The library accepts source code in fixed, free, and mixed formats. It processes standard Cobol 85.
X# (pronounced X-sharp) is an XML-oriented programming language designed to quickly create Web applications and services. Everything is represented as an XML tree, and instead of using functions to manipulate information or perform actions, all possible operations are done by adding, removing, or changing nodes from this tree. Since there are no functions to learn and everything is done intuitively, even inexperienced developers can create complex Web applications and services quickly.
cparser is a recursive descent C99 parser written in C99. It contains a lexer, parser, constructs an AST, and does semantic analysis. It is currently used as a frontend to the libFirm intermediate representation, but can be used independently. It supports lots of GNU extensions: enough to parse Linux/BSD system headers and compile typical C projects with it. It is able to bootstrap itself, and compiles and runs the spec CINT2000 without problems.