Re: PostScript Ideas Worth Resurrecting

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From	Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups	comp.lang.postscript
Subject	Re: PostScript Ideas Worth Resurrecting
Date	Tue, 26 Mar 2024 20:15:33 -0000 (UTC)
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On Tue, 26 Mar 2024 06:19:49 -0000 (UTC), I wrote:

> On Tue, 26 Mar 2024 16:11:07 +1100, David Newall wrote:
> 
>> On 3/3/24 16:42, Lawrence D'Oliveiro wrote:
>>
>>> But these “function” objects do have some deficiencies: no (simple)
>>> support for reentrant local variables, and no lexical binding. Fix
>>> these up, and you have a much more useful language.
>> 
>> % p1 p2 p3 f -  % demonstrate local variables and recursive parameters
>> /f {
>>   6 dict begin
>>    /p3 exch def
>>    /p2 exch def
>>    /p1 exch def
>>    /l1 (value) def
>>    /l2 (value) def
>>    /l3 (value) def ...
>>   end
>> } def
>> 
>> No?
> 
> Notice I said “reentrant”?

Sorry, that is of course reentrant. But it does dynamic binding, not 
lexical.

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PostScript Ideas Worth Resurrecting Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-03-03 05:42 +0000
  Re: PostScript Ideas Worth Resurrecting David Newall <ghostscript@davidnewall.com> - 2024-03-26 16:11 +1100
    Re: PostScript Ideas Worth Resurrecting Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-03-26 06:19 +0000
      Re: PostScript Ideas Worth Resurrecting Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-03-26 20:15 +0000

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