Regina REXX Interpreter

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Last Update: 2025-05-29

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An implementation of the the ANSI Standard REXX Programming Language, available for most operating systems.

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License

GNU Library or Lesser General Public License version 2.0 (LGPLv2)

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montecopeland Posted 2026-01-13

As a Rexx user since 1985 (mainframe, then OS/2, now Windows and Linux), I so very much appreciate Regina Rexx. I really like how my C/C++ executables become the interpreter with the use of the RexxStart() API. There is no spawning a child process to do the interpretation. The running of a script happens in my process, on my thread. I get a result as if I called a subroutine. And while that script is running, it can call back into functions I wrote in C, also like a subroutine. The result is a truly remarkable combination of compiled and interpreted behaviors. Sure, Python can do this too. But it is a simpler thing in Rexx where every variable, even a numeric variable, is a string. So all marshalling between compiled and interpreted code becomes mere string handling. I love it.
rexx-fan Edited 2020-03-14

Regina had Rexx language level 5 address ... with ... for years, while ooRexx 4.2.0 users still wait for 5.0.0 (apparently almost ready in early 2020, but There Be Dragons.) Arguably ooRexx should support the Regina address system ... idea in addition to its address cmd ... idea for better portability. Likewise Regina should offer DO ... OVER ... (and LOOP ... while at it) as an option. Both interpreters could allow some well-known alien syntax in their tokenization as "not strictly invalid" + runtime syntax error "can't do that" instead of an abnormal end before starting. I'm just dreaming ;-)
adrixnt Edited 2017-02-09

thanks see: VRCalc++ OOSL (Script) on sourceforge
k5sat Posted 2016-08-29

REXX is my favorite scripting language. I am impressed that most everything I could do with REXX on OS/2 is available on Windows 10.
tammypalazzo Posted 2013-06-24

Regina-rexx is great! Thanks.

1 user found this review helpful.

Additional Project Details

Languages

English

Intended Audience

Developers, End Users/Desktop, System Administrators

Programming Language

C, Rexx

Related Categories

Rexx Interpreters, C Interpreters

Registered

2001-05-27

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