Re: Impressed but confused, gluing a list together...

[Sean Charles]

Well thanks anyway Michał, I think I now understand "The Force" a lot better 
for your explaining it.

I have been a hacker for 28 years, I converted to function stuff (Erlang, 
Haskell et al.) about six or seven years ago but Prolog is still proving to be 
tricker to understand for me at times but I am loving it. I am working on a 
"project" and I am really starting (I mean "really"!!!) to appreciate just how 
bloody brilliant Prolog is / can be at symbolic stuff, the hardest part was 
truly getting to grips with DGC-s but I am now getting better with those as 
well.

Thanks for your time!
:)
Sean.


On 1 Oct 2013, at 23:16, "Michał Bieliński" <address@hidden> wrote:

> Dnia 2 Października 2013, 00:09, Śr, Sean Charles napisał:
>>> GNU Prolog 1.4.4 (32 bits)
>>> Compiled Apr 29 2013, 20:41:58 with gcc
>>> By Daniel Diaz
>>> Copyright (C) 1999-2013 Daniel Diaz
>>> 
>>> | ?- join("ABC", "Z", X).
>>> 
>>> X = [97,[122],98,[122],99] ? ;
>>> 
>>> X = [97,[122],98,[122],99,[122]]
>>> 
>> 
>> Weird, I am using GNU Prolog too and when I run it I get this:
>> 
>> | ?- str_join("ABC", "Z", X).
>> 
>> X = [65,[90],66,[90],67] ? ;
>> 
>> X = [65,[90],66,[90],67,[90]]
>> 
>> yes
>> 
>> Your output has lower case values in the result variable but upper
>> case in the join() call!!! Maybe just a typo?!
> 
> Argh.  My apologies for spreading borked data.  I spliced query with
> output data since usually I work without X windows on my computer and
> there is no "copy-paste" functionality in bare console.  So I redirected
> output from Prolog to file and supplied the query by hand and with error. 
> Sorry!
> 
> As for you other question: yes, it appears to be a green cut.  I had to
> familiarize myself with the terminology though and having just relearned
> it my answer is a bit unsure.
> 
> -- 
> Michał Bieliński
> 
> 
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