SB ScriptBasic Introduction to ScriptBasic There are more people writing programs in BASIC than the number of people capable programming.

SB Contents Why a new basic interpreter? Design goals, major features Implementation we do not speak in this presentation about the language or the usage of ScriptBasic

SB Why a new BASIC interpreter? There are many languages… There are many BASIC compilers and interpreters even free… but...

SB Design goals we needed an interpreter that –is BASIC (do you remember the motto?) –GNU GPL –Modular and extendable –Compiled byte code –Multithread, memory safe –Portable –Embeddable

SB Design goals is BASIC (do you remember the motto?) –Microsoft claims that there are 8,000,000 people programming VisualBasic –BASIC is the fastest to learn language

SB Design goals GNU GPL –This is what we truly believe. –GNU GPL open source is the method to provide quality and –quality for us is more than profit.

SB Design goals Modular and extendable –It is not a BASIC interpreter, rather a general purpose line oriented language interpreter. –Can be used as an interpreter generating tool for other languages. –Anyone programming C can easily extend the language, –or write external modules (.dll on Win32 or.so on UNIX)

SB Design goals Compiled byte code –This is essential for fast multiple execution of small scripts, like CGI scripts. –Internal code is relocatable, single, continuous memory space, –can be saved onto disk and loaded and executed without compilation.

SB Design goals Multithread, memory safe –ScriptBasic is not multithread, but it is thread safe. –Separate powerful memory management with proved no memory leaking. –No need to restart process from time to time.

SB Design goals Portable –It runs on Win32 (NT or Win95) and on UNIX –The language supports the common UNIX/NT constructs –OS specific functions can be provided via external modules

SB Design goals Embeddable –Can be used as an embedded interpreter in any tool. –Clean interfaces. –Possibility of variations. To embed it should be 1 day project for experienced programmer.

SB Implementation Pure C code with WIN32 ifdefs. Windows NT, Tru64 UNIX, Linux gcc More than 100 commands and functions Standalone command line version Automatic cache, and save byte code and execute without the source CGI module with upload feature Full English documentation

SB Thank you for listening