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From: anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups: comp.lang.forth
Subject: Re: Nested definitions
Date: Wed, 02 Jul 2025 15:12:00 GMT
Organization: Institut fuer Computersprachen, Technische Universitaet Wien
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Ruvim <ruvim.pinka@gmail.com> writes:
>On 2025-07-02 15:37, albert@spenarnc.xs4all.nl wrote:
>> Or it has not even know it, if [ is smart enough to compile a jump to
>> after ]. 
>
>This can be tricky because the following should work:
>
>   create foo [ 123 , ] [ 456 ,
>
>   : bar  [ ' foo compile, 123 lit, ] ;

Or something.  Anyway, [ and ] are used for a variety of purposes and
trying to smarten them seems fraught with pitfalls.  If one really
wants to have

: foo ... [ : bar ... ; ] ... ;

work, it may be better to put the smarts into : and ;.  E.g., on a
system with sections, they could switch to another section and back.

The benefit of defining a normal colon definition inside another colon
definition eludes me, however.  Maybe mutual recursion, but the need
is rare and deferred words handle that well.

- anton
-- 
M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html
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