Re: Regexp Alternatives (was Re: Wondering what I'm doing wrong?)

>> Yes, I’ll give it a go. But there is no equivalent for SBCL, and I was trying for portability. 
> Yabbut we *are* talking on a LW mailing list :)
> 
Yes we are. My preferred weapon has always been LW, for the past 35 years. But I’m an old dude, and with inflation raging the way it is, I might not be able to afford my LW Licenses someday. And I don’t want to be caught without some Lisp for me to use.

I have also found that. when possible, keeping things portable is helpful for others. But some things in LW simply don’t have any equivalent. AFIAK, the Async Socket protocol is a huge one in favor of LW.


> On Jun 11, 2026, at 18:13, Adam Weaver (as adam at cleversure dot com dot au) <[email protected]> wrote:
> 
> Re-arranged, because top-posting is a sin.
> 
>>> On Jun 11, 2026, at 17:45, Adam Weaver (as adam at cleversure dot com dot au) <[email protected]> <mailto:[email protected]> wrote:
>>> 
>>> DM, I don't suppose you're interested in trying your number parser out 
>>> using LW's built-in PARSERGEN package?
> 
> > On 12/6/26 09:05, David McClain wrote:
>> Yes, I’ll give it a go. But there is no equivalent for SBCL, and I was trying for portability. 
> Yabbut we *are* talking on a LW mailing list :)
> 
>> Also, IIRC, the Parsergen in LW needs a lexical analyzer built for it. All my other parsers do the lexical analysis in stride as part of the parsing.
> True, but that's easily fixed with some macrology. **
> 
> I might have a crack at this over the weekend - distraction over doing Real Work instead :)
> 
>> The one thing I found, about Parseq (dunno yet about ESRAP), unlike a regexp matcher where you can anchor the pattern to the end of the line, you have to manually do your anchoring in the parsing grammar. I do that with an EOS Rule:
>> 
>> (defrule eos () (* char)
>>   (:test (&rest es)
>>    (null es)))
> Noice. 
> 
> A
> 
> ** I did once experiment with some read-macrology to convert a PCRE style regexp into the built-in Lispworks regexp format (which I think was Emacs inspired). It was fuuuuuuuuuuuggggggleeeeeeeeeeee.
>