January 2013 - Pharo-users - lists.pharo.org

Fwd: Add a new assignment operator

by Sean P. DeNigris

grifoxx wrote > Hi, > > I started doing smalltalk and I am trying to add a new assignment operator > (:>). > > The current operator used in pharo is no selector and I started to look > into the class Scanner where the underscore (_) can be enabled for > assigments. I've tried to do it in a similar way but it did not work. > > Do you have any idea or seggestion about how I achieve that. > > Thanks a lot. -- View this message in context: http://forum.world.st/Fwd-Add-a-new-assignment-operator-tp4662194.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Jan. 5, 2013

Re: [Pharo-users] incrementing a dictionary value

by Igor Stasenko

On 5 January 2013 12:21, Ben Coman <btc(a)openinworld.com> wrote: > Igor Stasenko wrote: >> >> On 5 January 2013 06:06, Ben Coman <btc(a)openinworld.com> wrote: >> >>> >>> Is there a more elegant way to increment the value of a dictionary entry >>> than what I have done in "this line" below? >>> >>> elements := #( 1 1 2 2 2 2 3 3 3 3 3 3) asOrderedCollection. >>> elementCounter := Dictionary new. >>> elements do: [ :key | elementCounter at: key put: (elementCounter at: key >>> ifAbsent: [ 0 ]) + 1 ]. "this line" >>> elementCounter inspect. "--> a Dictionary(1->2 2->4 3->6 )" >>> >>> >> >> why you don't use bag? >> >> #( 1 1 2 2 2 2 3 3 3 3 3 3) asBag sortedCounts >> {6->3. 4->2. 2->1} >> >> > > Thanks Igor. That is useful. So I ended up with the following to gather > elements that only occur once (probably should have included that in the > original scope) > (#( 7 8 1 1 2 2 2 2 3 3 3 3 3 3 ) asBag sortedElements select: [ :asn | asn > value = 1 ] ) collect: [ :asn | asn key ]. > check the Bag protocol, there could be easier way to do it. -- Best regards, Igor Stasenko.

Jan. 5, 2013

How to prevent SystemWindow from overriding the color of a Morph?

by Helene Bilbo

Hi, when i open a Morph via openInWindow in a SystemWindow it's color is overriden by the SystemWindow or the UITheme (i suppose). See attachment for illustration (the Morph is indeed displayed in the Window, but white). Should i file a bug? Is this a feature? Can i somehow avoid this behaviour? Best regards, Helene. <http://forum.world.st/file/n4662154/ProblemWithMorphInSystemWindow.png> -- View this message in context: http://forum.world.st/How-to-prevent-SystemWindow-from-overriding-the-color… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Jan. 5, 2013

Re: [Pharo-users] incrementing a dictionary value

by Ben Coman

Igor Stasenko wrote: > On 5 January 2013 06:06, Ben Coman <btc(a)openinworld.com> wrote: > >> Is there a more elegant way to increment the value of a dictionary entry >> than what I have done in "this line" below? >> >> elements := #( 1 1 2 2 2 2 3 3 3 3 3 3) asOrderedCollection. >> elementCounter := Dictionary new. >> elements do: [ :key | elementCounter at: key put: (elementCounter at: key >> ifAbsent: [ 0 ]) + 1 ]. "this line" >> elementCounter inspect. "--> a Dictionary(1->2 2->4 3->6 )" >> >> > why you don't use bag? > > #( 1 1 2 2 2 2 3 3 3 3 3 3) asBag sortedCounts > {6->3. 4->2. 2->1} > > Thanks Igor. That is useful. So I ended up with the following to gather elements that only occur once (probably should have included that in the original scope) (#( 7 8 1 1 2 2 2 2 3 3 3 3 3 3 ) asBag sortedElements select: [ :asn | asn value = 1 ] ) collect: [ :asn | asn key ].

Jan. 5, 2013

Re: [Pharo-users] incrementing a dictionary value

by Igor Stasenko

On 5 January 2013 06:06, Ben Coman <btc(a)openinworld.com> wrote: > > Is there a more elegant way to increment the value of a dictionary entry > than what I have done in "this line" below? > > elements := #( 1 1 2 2 2 2 3 3 3 3 3 3) asOrderedCollection. > elementCounter := Dictionary new. > elements do: [ :key | elementCounter at: key put: (elementCounter at: key > ifAbsent: [ 0 ]) + 1 ]. "this line" > elementCounter inspect. "--> a Dictionary(1->2 2->4 3->6 )" > why you don't use bag? #( 1 1 2 2 2 2 3 3 3 3 3 3) asBag sortedCounts {6->3. 4->2. 2->1} > cheers -ben > -- Best regards, Igor Stasenko.

Jan. 5, 2013

incrementing a dictionary value

by Ben Coman

Is there a more elegant way to increment the value of a dictionary entry than what I have done in "this line" below? elements := #( 1 1 2 2 2 2 3 3 3 3 3 3) asOrderedCollection. elementCounter := Dictionary new. elements do: [ :key | elementCounter at: key put: (elementCounter at: key ifAbsent: [ 0 ]) + 1 ]. "this line" elementCounter inspect. "--> a Dictionary(1->2 2->4 3->6 )" cheers -ben

Jan. 5, 2013

Re: [Pharo-users] Any interface to this newsgroup thru which is easier to browse

by Paul DeBruicker

On 01/04/2013 08:54 AM, Sanjay Minni wrote: > is there any way other than browsing thru > http://lists.gforge.inria.fr/pipermail/pharo-users/ > to browse / search this newsgroups current and archived messages. > > Here going thru monthly files is tedious, unless there is another way > > thanks > -- > regards > Sanjay Minni http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Jan. 4, 2013

Any interface to this newsgroup thru which is easier to browse

by Sanjay Minni

is there any way other than browsing thru http://lists.gforge.inria.fr/pipermail/pharo-users/ to browse / search this newsgroups current and archived messages. Here going thru monthly files is tedious, unless there is another way thanks -- regards Sanjay Minni

Jan. 4, 2013

Re: [Pharo-users] Fuel - How to ignore instances of a class

by Bernat Romagosa

None right now.. I don't understand what happened a while ago. It's working now, I'll come back if it happens again. Thanks! :) 2013/1/4 Mariano Martinez Peck <marianopeck(a)gmail.com> > > > On Fri, Jan 4, 2013 at 9:42 AM, Bernat Romagosa < > tibabenfortlapalanca(a)gmail.com> wrote: > >> Hi list, >> >> I read in the documentation of Fuel that you can implement #fuelAccept: >> to prevent instances of a class from being serialized, but what I'd like is >> to ignore those instances, not to raise an error when trying to serialize >> them. >> >> I tried with a visitSubstitution by nil, but it brought big trouble after >> serializing, materializing and trying to serialize again. >> >> > Hi Bernat. That should be the way I would do it. Which are the problems? > > > MyClass >> fuelAccept: aGeneralMapper > ^ aGeneralMapper visitSubstitution: self by: nil > > > > >> Thanks! >> >> p.s. Using fuel 1.8.1 loaded from the latest configuration in ss3. >> >> -- >> Bernat Romagosa. >> > > > > -- > Mariano > http://marianopeck.wordpress.com > -- Bernat Romagosa.

Jan. 4, 2013

Re: [Pharo-users] Fuel - How to ignore instances of a class

by Mariano Martinez Peck

On Fri, Jan 4, 2013 at 9:42 AM, Bernat Romagosa < tibabenfortlapalanca(a)gmail.com> wrote: > Hi list, > > I read in the documentation of Fuel that you can implement #fuelAccept: to > prevent instances of a class from being serialized, but what I'd like is to > ignore those instances, not to raise an error when trying to serialize them. > > I tried with a visitSubstitution by nil, but it brought big trouble after > serializing, materializing and trying to serialize again. > > Hi Bernat. That should be the way I would do it. Which are the problems? MyClass >> fuelAccept: aGeneralMapper ^ aGeneralMapper visitSubstitution: self by: nil > Thanks! > > p.s. Using fuel 1.8.1 loaded from the latest configuration in ss3. > > -- > Bernat Romagosa. > -- Mariano http://marianopeck.wordpress.com

Jan. 4, 2013