For some reason this did not join the pop-forum list nor get onto
comp.lang.pop when I first sent it.
John,
Many thanks for your much nicer definition.
johnw@uk.ac.susx.cogs (John Williams) writes:
> Date: 27 Nov 1995 19:17:14 -0000
>
> Please would people instead use this re-definition:
>
> sysunprotect("vars");
>
> define syntax vars;
> pop11_comp_declaration(sysVARS, "undef")
> enddefine;
>
> sysprotect("vars");
>
> as it is more correct (and shorter).
>
> If you put this code in a file called "init.p" in your home directory
> it will be loaded automatically every time you startup Poplog.
Unfortunately this clobbers other things, like
define vars foo(x,y);
....
enddefine;
This produces a misplaced syntax word error. My version did also!
So I am now using the following.
define syntax pvars;
;;; for locally declaring pattern variables, etc.
pop11_comp_declaration(sysVARS, "undef")
enddefine;
Then I use "pvars" for the old style local "vars" definitions.
Moral: ANY system-produced warning message should use a user-definable
print procedure, like prwarning. Then we could simply turn off the
warnings, or produce them more selectively.
Aaron
--
Aaron Sloman, ( http://www.cs.bham.ac.uk/~axs )
School of Computer Science, The University of Birmingham, B15 2TT, England
EMAIL A.Sloman@cs.bham.ac.uk
Phone: +44-121-414-4775 (Sec 3711) Fax: +44-121-414-4281
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