June 2017 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Prolog in Pharo

by Serge Stinckwich

On Sat, Jun 17, 2017 at 6:11 PM, Evan Donahue <emdonahu(a)gmail.com> wrote: > Hi, just saw this. Hi Evan, > Smallkanren is complete and under very active development, I just haven't > put a new version up in a while because I didn't think that anyone was using > it. I'm currently cleaning up a new release and was planning to upload that > in the next few days. It should have full support for all the core functions > and a better interface, in addition to being much faster. > > As far as the matter of real world vs academic exercise, I think I might say > rather that it has not *yet* been as thoroughly developed and proven as > prolog. It is, after all, a much newer language by almost a half century. > However, it forms the basis of clojure's core.logic library, and has been > seeing an increasing amount of deployment in real world projects in that > area (configuration, parsing, test generation sorts of things I think). I'd > like to enable the same in Pharo. > > If anyone is interested to know more, feel free to get in touch. This looks very promising. At the moment, I just want to reuse an existing Prolog program to generate some scenarios, but I will definitively have a look to your work later. Do you plan to move your code to github ? Regards, -- Serge Stinckwich UCN & UMI UMMISCO 209 (IRD/UPMC) Every DSL ends up being Smalltalk http://www.doesnotunderstand.org/

June 17, 2017

Re: [Pharo-users] UUIDGenerator

by horrido

Message 'next' is not understood. But yes, UUID new hex asUppercase works fine. This is what happens when there is inadequate documentation: you end up doing things the *hard* way. Thanks. Sven Van Caekenberghe-2 wrote > Why not just > > UUIDGenerator default next hex asUppercase. > > Or even > > UUID new hex asUppercase. > > ? > > Since you are using #generateBytes:forVersion: (which is an internal > method BTW), you must be working in an older Pharo image (older than 6). > We replaced the UUIDGenerator class, the class comment in from the newer > version. > >> On 17 Jun 2017, at 16:27, horrido < > horrido.hobbies@ > > wrote: >> >> Okay, I figured it out. Here's my method: >> >> generateUUID >> | aStream hex s x | >> hex := '0123456789ABCDEF'. >> x := ByteArray new: 16. >> UUIDGenerator default generateBytes: x forVersion: 4. >> s := String new: 32. >> aStream := WriteStream on: s. >> x do: [ :each | aStream nextPut: (hex at: each // 16 + 1). >> aStream nextPut: (hex at: each \\ 16 + 1) ]. >> ^ s >> >> Works like a charm. It would've been nice if a similar example was >> available >> /somewhere/ on the web. >> >> >> >> -- >> View this message in context: >> http://forum.world.st/UUIDGenerator-tp4951725p4951731.html >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >> -- View this message in context: http://forum.world.st/UUIDGenerator-tp4951725p4951743.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

June 17, 2017

Re: [Pharo-users] Morph layout changes in P4, P5 or P6

by Hilaire

Yes, I commit the fixes. Now I have issue with the Drawing area. It is wrapped in an Athens Morphs. I remember it was a temporary hack. Is it still necessary ? Hilaire Le 17/06/2017 Ã 20:12, Nicolai Hess a Ã©crit : > Do you know how to fix it ? > -- Dr. Geo http://drgeo.eu

June 17, 2017

Re: [Pharo-users] Morph layout changes in P4, P5 or P6

by Nicolai Hess

2017-06-17 19:35 GMT+02:00 Hilaire <hilaire(a)drgeo.eu>: > Found, it is the Layout protocol. It seems to behave differently, at least: > > LayoutFrame fractions: fractionsOrNil offsets: offsetsOrNil > > does not behave the same > > Le 17/06/2017 Ã 18:40, Hilaire a Ã©crit : > > I think the changes originated more likely in P4. > > -- > Dr. Geo > http://drgeo.eu > > > Do you know how to fix it ? Replacing code like self window addMorph: treeMorph fullFrame: (LayoutFrame fractions: (0@0 corner: 0.2@1) offsets: (0 @ menuBarShiftY corner: 0@statusHeight negated)). with self window addMorph: treeMorph fullFrame: ((0@0 corner: 0.2@1) asLayoutFrame topLeftOffset: (0 @ menuBarShiftY) ;bottomRightOffset: (0@statusHeight negated)). works for me.

June 17, 2017

Re: [Pharo-users] Morph layout changes in P4, P5 or P6

by Hilaire

Found, it is the Layout protocol. It seems to behave differently, at least: LayoutFrame fractions: fractionsOrNil offsets: offsetsOrNil does not behave the same Le 17/06/2017 Ã 18:40, Hilaire a Ã©crit : > I think the changes originated more likely in P4. -- Dr. Geo http://drgeo.eu

June 17, 2017

Re: [Pharo-users] Prolog in Pharo

by Evan Donahue

Hi, just saw this. Smallkanren is complete and under very active development, I just haven't put a new version up in a while because I didn't think that anyone was using it. I'm currently cleaning up a new release and was planning to upload that in the next few days. It should have full support for all the core functions and a better interface, in addition to being much faster. As far as the matter of real world vs academic exercise, I think I might say rather that it has not *yet* been as thoroughly developed and proven as prolog. It is, after all, a much newer language by almost a half century. However, it forms the basis of clojure's core.logic library, and has been seeing an increasing amount of deployment in real world projects in that area (configuration, parsing, test generation sorts of things I think). I'd like to enable the same in Pharo. If anyone is interested to know more, feel free to get in touch. Cheers, Evan -- View this message in context: http://forum.world.st/Prolog-in-Pharo-tp4951719p4951737.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

June 17, 2017

Morph layout changes in P4, P5 or P6

by Hilaire

Hi, Any idea about what change(s) in P4/P5/P6 could cause this layout mess in DrGeo window? I think the changes originated more likely in P4. Thanks Hilaire -- Dr. Geo http://drgeo.eu

June 17, 2017

Re: [Pharo-users] Prolog in Pharo

by Stephane Ducasse

There is one in the goodies of St/X/ with an open-source license. On Sat, Jun 17, 2017 at 11:24 AM, Serge Stinckwich <serge.stinckwich(a)gmail.com> wrote: > Dear all, > > I'm looking for a simple Prolog engine available in Pharo compatible > with SWI-Prolog and with list support. Anything like that available ? > > Regards, > -- > Serge Stinckwich > UCN & UMI UMMISCO 209 (IRD/UPMC) > Every DSL ends up being Smalltalk > http://www.doesnotunderstand.org/ >

June 17, 2017

Re: [Pharo-users] UUIDGenerator

by Sven Van Caekenberghe

Why not just UUIDGenerator default next hex asUppercase. Or even UUID new hex asUppercase. ? Since you are using #generateBytes:forVersion: (which is an internal method BTW), you must be working in an older Pharo image (older than 6). We replaced the UUIDGenerator class, the class comment in from the newer version. > On 17 Jun 2017, at 16:27, horrido <horrido.hobbies(a)gmail.com> wrote: > > Okay, I figured it out. Here's my method: > > generateUUID > | aStream hex s x | > hex := '0123456789ABCDEF'. > x := ByteArray new: 16. > UUIDGenerator default generateBytes: x forVersion: 4. > s := String new: 32. > aStream := WriteStream on: s. > x do: [ :each | aStream nextPut: (hex at: each // 16 + 1). > aStream nextPut: (hex at: each \\ 16 + 1) ]. > ^ s > > Works like a charm. It would've been nice if a similar example was available > /somewhere/ on the web. > > > > -- > View this message in context: http://forum.world.st/UUIDGenerator-tp4951725p4951731.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

June 17, 2017

Re: [Pharo-users] UUIDGenerator

by horrido

Okay, I figured it out. Here's my method: generateUUID | aStream hex s x | hex := '0123456789ABCDEF'. x := ByteArray new: 16. UUIDGenerator default generateBytes: x forVersion: 4. s := String new: 32. aStream := WriteStream on: s. x do: [ :each | aStream nextPut: (hex at: each // 16 + 1). aStream nextPut: (hex at: each \\ 16 + 1) ]. ^ s Works like a charm. It would've been nice if a similar example was available /somewhere/ on the web. -- View this message in context: http://forum.world.st/UUIDGenerator-tp4951725p4951731.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

June 17, 2017