
I would like to do the following things in due course (not necessarily in
this order)...

 * I would like REXX/imc to run on Sys V systems, as well as SunOS and
   (hopefully) BSD ones.  NB I will need some help because I only have
   access to SunOS and therefore cannot test on other systems.
 * REXX/imc needs a completely new symbol table algorithm to speed it up.
 * eliminate most or all of the BUGS mentioned in rexx.ref
 * eliminate most or all of the BUGS not mentioned in rexx.ref ;-)
 * add "options STANDARD" which will disallow all the local extensions
 * solve discrepancy between upper/lower case in external function names
 * Expand the builtin shell to do some interesting things, e.g. filename
   expansion and I/O redirection
 * Improve the documentation
 * Some extra invocation options, for example...
   -e environ (to change the default environment - eg in a Rexx application)
 * Allow programs to be preprocessed for later execution
 * Allow programs to be loaded for repeated execution
 * Fix the conversion functions (e.g. c2d) to work with large numbers
 * Fix the ** operator to work with large numbers on the RHS
 * Decide whether "foo/* comment */bar" equals "foo bar" or "foo||bar"
 * Correct the tracing (i.e., move the pauses to after execution and add "=",
   "trace number" and "trace -number" commands).

Things that might be nice (but won't get done...)
 * Support for national languages
 * Impose the constraint on the use of PROCEDURE mandated by ANSI
