4tH is a Forth compiler with a little difference. Instead of the standard Forth engine it features a conventional compiler. 4tH is a very small compiler that can create bytecode, C-embeddable bytecode, standalone executables, but also works fine as a scripting language. It supports about 95% of the ANS Forth CORE wordset and features conditional compilation, pipes, files, assertions, forward declarations, enumerations, structures, suspended execution, recursion, include files, etc. It comes with an RPN calculator, line editor, preprocessor, compiler, decompiler, C-source generator, a virtual machine, and a multitasking environment.
Accent is a compiler compiler that does not rely on specific subclasses of context-free grammars and that can be used like Yacc. It also cooperates with Lex. Accent supports inherited and synthesized attributes. It allows you to write your grammar in the Extended-Backus-Naur-Form. Semantic actions can be inserted anywhere; there are no restrictions caused by the parser implementation. Accent even allows ambiguous grammars with much less effort than with traditional LALR or LL compiler compilers. An annotation framework has been developed to resolve ambiguities. It is on the abstract level of grammars and does not reflect the parsing algorithm. Moreover, this calculus is complete in the sense that it can handle each ambiguity in any grammar.
APP is a macro processor that enables a developer to write programs using free-form macros. Free-form does not necessarily exclude natural language. APP can also help a developer combine documentation and code in one source, just like WEB does. It is targeted to generation of C code, and it includes special features that can help you overcome some of the shortcomings of C.
Aubit 4GL compiler is a programming language based on (and compatible with) Informix-4GL. It provides an easy way to generate screen/form based programs, since statements for handling Windows, Forms, Menus, SQL, and similar are built-in. With support for SQL statements forming an intrinsic part of the language, it's especially suitable for developing database-oriented applications. Database connectivity is provided for PostgreSQL, MySQL, Informix, and others via ODBC. It supports both ncurses (console mode) and GTK+ (GUI mode) output.
AutoGen is a tool designed for generating program files that contain repetitive text with varied substitutions. Its goal is to simplify the maintenance of programs that contain large amounts of repetitious text. This is especially valuable if there are several blocks of such text that must be kept synchronized. Output is specified with a Scheme-enhanced output template. Input, if required by your template, may come from AutoGen definitions, CGI data, or XML files.
AutoOpts is an integrated part of AutoGen. Based on a very simple option description file, it will process configuration files, environment variables, command line options, text strings passed by client programs, and will make the results easily accessible to the client program. It will also produce a man page and the info-doc invoking section automatically.
NFSv4 specifies that the RPC calls be batched into a "compound" call. There is no support for this in RPCGEN. By rearranging the ONC IDL for NFSv4 into AutoGen definitions, these templates will emit the original IDL *plus* all the code to package, send, distribute, collect, return, and dispatch the results. The distributed program author merely needs to call and supply server procedures for the routines specified in the IDL. Templates for these calls and service routines is provided, too. The NFSv4 definitions are included.
Awka is both a translator of AWK programs to ANSI C, and a separate library against which the C code is linked. The aims of Awka are to allow creation an executable that provides generally better performance than AWK interpretors, to allow easy inclusion of AWK logic in larger C applications, and use of external C functions within AWK scripts.