On Thu, 2006-12-28 at 15:05 +0000, Steve Searle wrote:
Around 03:54pm on Thursday, December 28, 2006 (UK time), Aaron
Konstam scrawled:
> I hope everyone realizes that the COMEFROM is a joke. A language with a
> COMEFROM statement is impossible to compile.
Why? It would be very dificult to code in, and worse to maintain and
debug and maintain. Not sensible, but the compiler could easily parse
the code, replacing the COMEFROMs with appropriate GOTOs and then
produce object code.
I think it has been implemented in python, as a joke.
Steve
This joke is about 30 years old. It has been has been so long since it
was first mentioned that it is hard for me to explain clearly why this
is indeed not compilable but it is not.
I guess if one can't explain something clearly one should shut up. It
leads to situations which are logically unresolvable. As someone who has
taught compiler construction it should be obvious ot me why this is true
but my senior moments have caught up with me. If the detailed
explanation comes to me I will share it.
--
=======================================================================
All your files have been destroyed (sorry). Paul.
=======================================================================
Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam(a)sbcglobal.net