RE: Can CL write to a disk file

One is that it is slower.   ;-)   Sorry, Dave, could not resist.

Actually, just kidding. But not completely. Calling REXX from a CL repeatedly 
can have performance issues - IOW, using the STRREXPRC command in a long loop 
will be almost always slower than some other means. Reason? There is an 
environment that is being built on every call, IIRC.

Also, REXX is always interpreted. No compiled objects.

Nonetheless, REXX is fantastic for things like string handling. It includes 
functions to reverse a character string, center it in a certain length, etc.

It has all the structured stuff that CL has never had, until V5R3 to some 
extent. Writing in it is fairly easy - no declaration of data types - it 
understands context with little or no problem.

It actually makes a very nice command-processing program - commands can be 
pointed at a REXX procedure directly instead of a *PGM.

HTH
Vern

-------------- Original message -------------- 

> I've wondered what the advantages are of REXX over CLP. 
> 
> 
> >From: "Dave Odom" 
> >Reply-To: Midrange Systems Technical Discussion 
> >To: 
> >Subject: RE: Can CL write to a disk file 
> >Date: Wed, 17 Aug 2005 16:45:29 -0700 
> > 
> >Rob, you said: 
> > 
> > 
> >"Every time I violate my self imposed mantra to not program anything 
> >with 
> >CL I get reminded - the hard way." 
> > 
> >You don't have to violate your mantra if you use REXX instead of CL; 
> >out with the old, in with the new. 
> > 
> >Dave Odom 
> > 
> > 
> >-- 
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> 
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