NAME
String::RexxStack - Introduction to RexxStack modules
DESCRIPTION
RexxStack is an implementation of a more elaborate stack data structure than a regular stack. This structure (and its related functions) has always been an extension to the Rexx framework in platforms like CMS, Amiga, OS/2, and Unix to serve as a glue-macro language not just between applications, but also to interface operations between the operating system, the shell, and the applications. In Unix speak, it is similar to a daemon able to funnel data between separate applications and perhaps the shell itself.
It is a more elaborate data structure than a regular stack since
(a) It contains buffers within the stack, and stack operations
can be applied within a region of the stack,
(b) It support multiple stacks in stack- within-stack fashion,
(c) It supports both a Perlish and Rexx systax -- the Rexx syntax
is probably simpler.
(d) The stack scope can be internal to the application (as usual), or
the Stack can run as a daemon to enable sharing of data between
network applications, or you could use both the internal plus the
networking stacks at the same time.Since every stack is actually a stack-of-stacks, this documentation uses both terms interchangeably.
The implementation of RexxStack is locate in module String::RexxStack::Named.pm . The network applications are bin/rexstack.pm and bin/rexqueue.pm, and although they have been implemented and tested, in order to expedite this release, I decided to withhold publication of everything related to networking for a future day. Send me an email if you need an advanced copy.
Roadmap
- Internal RexxStack
-
This release. - External & Internal RexxStack
-
Implements rxstack and rxqueue (the networking interface). The code has been implemented, documented, and passed all tests. Is is still alpha and not ready for release.
- Multi-threaded External & Internal RexxStack
-
After the simple version of rxstack is released, the rxstack will probably be implemented as a threaded server.
AUTHOR
Ioannis Tambouras, <ioannis@earthlink.net>