Free compilers and interpreters software for linux

Welcome to the SFI website. The Simple Forth Interpreter (SFI in short) is a Java implementation of a little subset of the ANS Forth language.
The goal of SFI is to develop a small interpreter to be embedded in any application and provide scripting functionality with low resources.
SFI follows the ANS Forth standard where reasonably possible, provides a simple way by inheritance to customize and integrate the interpreter in any existing application and a simple interface to play with the Forth code.
Why Forth? The interpreter its pretty simple and small, its an easy to learn language and the extend with user defined words fits quite well the idea of a language for scripting purposes.
Enhancements:
- Bug fix into TOK_NWORD parsing strings and comments.

WhileInterpreter is an interpreter for the WHILE programming language used for learning purpose.

WhileInterpreter has few constructs and easy semantics.

Command line interpreters allow users to issue various commands in a very efficient (and often terse) way. This requires the user to know the names of the commands and their parameters, and the syntax of the language that is interpreted. From the 1960s onwards, user interaction with computers was primarily by means of command line interfaces.

In the 1970s, researchers began to develop graphical user interfaces (GUIs)to provide an alternative user interface for computers, whereby commands were represented by pictorial operations, rather than as textual descriptions. Since they are easier to learn than command line interfaces, they have become the most common way of interacting with a computer.

However, command line interpreters remain widely used in conjunction with GUIs. For some complex tasks, the latter are less effective because of the large number of menus and dialog boxes presented and because of the innate difficulty of representing the underlying task graphically.

Kits JavaScript Brainf*ck Interpreter is a rather fast interpreter for the Brainf*ck esoteric programming language.

The Amsterdam Compiler Kit or in short just ACK, is a fast, lightweight and retargetable compiler suite and toolchain written by Andrew Tanenbaum and Ceriel Jacobs, and was Minix native toolchain. The ACK was originally closed-source software (that allowed binaries to be distributed for Minix as a special case), but in April 2003 it was released under a BSD open source license.
The ACK achieves maximum portability by using an intermediate byte-code language called EM. Each language front-end produces EM object files, which are then processed through a number of generic optimisers before being translated by a back-end into native machine code.
Unlike gccs intermediate language, EM is a real programming language and could be implemented in hardware; a number of the language front-ends have libraries implemented in EM assembly. EM is a relatively high-level stack-based machine, and one of the tools supplied with ACK is an interpreter capable of executing EM binaries directly, with a high degree of safety checking. See the em document referenced below for more information.
ACK comes with a generic linker and librarian capable of manipulating files in the ACKs own a.out-based format; it will work on files containing EM code as well as native machine code. (You can not, however, link EM code to native machine code without translating the EM binary first.)
Installation:
To install the ACK, you need to download the source package and compile it.
Version 5.6 compiles cleanly on Linux, but it has had little testing so far. The installation instructions are complex but straightforward provided you follow the instructions. Please read the README; it provides a detailed walk-through of the compilation process, telling you what to type at each stage.
Enhancements:
- Support has been added for generating CP/M binaries using the 8080 code generator.
- The various optimisers have been beaten into shape, and its now possible to use them on all platforms; a basic peephole optimiser has been set up for the 8080.
- The floating point system has been confirmed working on the pc86 and linux386 platforms.
- ANSI compatibility has been improved, binary sizes have been reduced, and there are many bugfixes everywhere.

Scriptol is an object oriented programming language designed to deliver the programmer from hardware or software constraints and let him or her concentrate only on the problem to formulate as a program.

Scriptol Compilers is universal, and allows building dynamic Web pages (with PHP as the backend), writing scripts, and building binary applications. It is compatible with Java and C++ libraries. Examples of use with PHP, Java, and GTK are included.

How to install the Java extension for Php or C++

1) Installing Java for Php
Search for the java path, example:
c:jdk1.4

Search for the php extensions path, example:
c:phpextensions

The extension directory must hold these files:
php_java.dll
php_java.jar

Set these lines into php.ini (in the Windows directory)
extension_dir = c:phpextensions
extension=php_java.dll

Search for the [java] section in php.ini - java.class.path must be assigned the path of all jar or class files including php_java.jar, separated by a semi-colon. (You can use a dot to designate the current path for yours jar or class file) - java.home

must be assigned the path of Java. - java.library
must be assigned the path of jvm.dll. - java.library.path
must be assigned the path of php extensions, that hold php_java.dll and php_java.jar and the path of any Java class you want to use.

- If these classes are inside jar files, the jar filenames are a part of the path.
- If several paths are required, they are separated by semicolons and enclosed in double quotes.

Example:
[Java]
java.class.path = "c:phpextensionsphp_java.jar;c:myclasses"
java.home = "c:jdk1.4"
java.library = "c:jdk1.4jrebinclientjvm.dll"
java.library.path = "c:phpextensions;c:jdk1.4jrelib"

2) Installing Java for Scriptol C++
- The jvm.dll must be in the path.
- The jvm.lib, jni.h, jni_md.h files must be in the directory of the source.
- The JAVA_HOME variable must be assigned the path of the JDK (ex: c:jdl1.4).
- See the README file if you encounter problems...

Tiny C compiles so fast that even for big projects Makefiles may not be necessary.
TinyCC (aka TCC) is a small but hyper fast C compiler. Unlike other C compilers, it is meant to be self-relying: you do not need an external assembler or linker because TCC does that for you.
TCC not only supports ANSI C, but also most of the new ISO C99 standard and many GNUC extensions including inline assembly.
TCC can also be used to make C scripts, i.e. pieces of C source that you run as a Perl or Python script. Compilation is so fast that your script will be as fast as if it was an executable. TCC can also automatically generate memory and bound checks while allowing all C pointers operations. TCC can do these checks even if non patched libraries are used.
With libtcc, you can use TCC as a backend for dynamic code generation
TCC mainly supports the i386 target on Linux and Windows. There are alpha ports for the ARM (arm-tcc) and the TMS320C67xx targets (c67-tcc).
Main features:
- SMALL! You can compile and execute C code everywhere, for example on rescue disks (about 100KB for x86 TCC executable, including C preprocessor, C compiler, assembler and linker).
- FAST! tcc generates optimized x86 code. No byte code overhead. Compile, assemble and link several times faster than GCC.
- UNLIMITED! Any C dynamic library can be used directly. TCC is heading torward full ISOC99 compliance. TCC can of course compile itself.
- SAFE! tcc includes an optional memory and bound checker. Bound checked code can be mixed freely with standard code.
- Compile and execute C source directly. No linking or assembly necessary. Full C preprocessor and GNU-like assembler included.
- C script supported : just add #!/usr/local/bin/tcc -run at the first line of your C source, and execute it directly from the command line.
- With libtcc, you can use TCC as a backend for dynamic code generation.
Enhancements:
- initial PE executable format for windows version (grischka)
- #pragma pack support (grischka)
- #include_next support (Bernhard Fischer)
- ignore -pipe option
- added -f[no-]leading-underscore
- preprocessor function macro parsing fix (grischka)

C++ Portable Types Library (PTypes) is a simple alternative to the STL that includes multithreading and networking. C++ Portable Types Library (PTypes) defines dynamic strings, variants, character sets, lists and other basic data types along with portable thread and synchronization objects, IP sockets and named pipes. Its main `target audience is developers of complex network daemons, robots or non-visual client/server applications of any kind.
PTypes defines simple and intuitive interfaces and differs from the STL in fairly moderate use of templates. The library is portable across many modern operating systems (currently FreeBSD, Linux, SunOS, Mac OS X and Windows). All platform-dependent issues are hidden inside. A simple web server called wshare is included in the package to demonstrate the full power of the library.
And finally, PTypes is open and free.
Main features:
- Threads and synchronization primitives solve the vital problem of diversity of the threading APIs on different platforms. The library also offers message queues and job queues as additional methods of thread synchronization and maintenance.
- IP socket classes and utilities provide complete IP-based framework for both client-side and server-side programming. Combined with PTypes multithreading, these classes can be used for designing complex non-visual applications, such like network daemons or web robots.
- Dynamic strings, variants, character sets, date/time type and various kinds of dynamic and associative arrays: Delphi programmers will find them very similar to the ones in their favorite language. The collection of these basic data types may be useful, among other things, for building compilers and interpreters for higher-level languages.
- Streaming interfaces provide buffered I/O with simple and powerful text parsing methods. A strictly defined syntax for a given text format or a formal language can be represented by calls to PTypes token extraction methods. The unified streaming interface is applicable to files, named pipes and network sockets.
- Special thread class with enhanced functionality called unit. Units have their own main() and input/output plugs; they can be connected to each other within one application to form pipes, like processes in the UNIX shell.
- Finally, everything above is portable: all platform-dependent details are hidden inside.
Enhancements:
- Added support for HP-UX
- Compilation problems solved on *BSD systems (64-bit seek issue)
- Several MacOS X compilation problems solved (socklen_t, libtool)
- MSVC project files are now in the new VC7+ format (.sln, .vcproj)
- Dropped support for BSDi, CygWin and also the Borland C++ compiler.

Aubit 4GL compiler is a project to make a free Informix-4GL compatible compiler. Aubit 4GL compiler translates 4GL source into executable programs, enabling fast creation of screen/form-based applications.

With support for SQL statements forming an intrinsic part of the language, its especially suitable for developing database-oriented applications. Database connectivity is provided for PostgreSQL, Informix, and ODBC. It supports both ncurses (console mode) and GTK+ (GUI mode) output.