October 2011 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Renaming "Announcement" into "Event"?

by Alexandre Bergel

> why wasting an energy on something, which not gives any benefits? There is a benefit when you teach Pharo and write a book. > i completely agree that proper naming is important. but the framework > was originally designed not by us, > and i think its not quite correct to rename it without asking the author. This is what this email is about :-) Alexandre > > > On 6 October 2011 16:21, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: >> What the whole world call "event" we call "announcement". >> I understand the need for a new name back at the time where Smalltalk has its old event mechanism. But this does not hold anymore I feel. >> >> I though about this renaming when working on Pharo by example 2. Having "Event" instead of "Announcement" in the index tells much more what the chapter is about. >> >> Alexandre >> >> >> On 6 Oct 2011, at 10:58, Fernando Olivero wrote: >> >>> I dont agree entirely with you Alex, nowadays we announce an >>> announcement, instead of sending events. I mean, >>> should we start announcing events? >>> Fernando >>> >>> On Thu, Oct 6, 2011 at 3:15 PM, Alexandre Bergel >>> <alexandre.bergel(a)me.com> wrote: >>>> Hi! >>>> >>>> What about moving our rebelness and energy into innovation rather than giving strange name? :-) >>>> >>>> Cheers, >>>> Alexandre >>>> -- >>>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >>>> Alexandre Bergel http://www.bergel.eu >>>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>> >> >> -- >> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >> Alexandre Bergel http://www.bergel.eu >> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >> >> >> >> >> >> >> > > > > -- > Best regards, > Igor Stasenko. > -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

Oct. 6, 2011

Re: [Pharo-project] One Liners to Impress Your Friends

by Levente Uzonyi

On Thu, 6 Oct 2011, Sven Van Caekenberghe wrote: > After reading these two post > > 10 CoffeeScript One Liners to Impress Your Friends > > http://ricardo.cc/2011/06/02/10-CoffeeScript-One-Liners-to-Impress-Your-Fri… > > 10 Scala One Liners to Impress Your Friends > > http://solog.co/scala/10-scala-one-liners-to-impress-your-friends.html > > I could not help but think why people get so excited about new languages while Smalltalk can and has been doing this for decades. So here are Smalltalk versions of their code (not that the examples are all that impressive): > > "--- 1. Multiple Each Item in a List by 2 ---" > > (1 to: 10) collect: [ :each | each * 2 ] > > "--- 2. Sum a List of Numbers ---" > > (1 to: 1000) inject: 0 into: [ :sum :each | sum + each ] > > (1 to: 1000) fold: [ :x :y | x + y ] > > (1 to: 1000) reduce: [ :x :y | x + y ] > > (1 to: 1000) sum > > "--- 3. Verify if Exists in a String ---" > > | wordList tweet | > wordList := #( 'Smalltalk' 'Object-Oriented' 'REST' 'TDD' 'Play Framework' ). > tweet := 'This is an example tweet talking about Smalltalk and TDD'. > wordList anySatisfy: [ :each | tweet includesSubString: each ] > > "--- 4. Read in a File ---" > > (FileStream fileNamed: 'data.txt') contentsOfEntireFile > > "--- 5. Happy Birthday ---" > > 1 to: 4 do: [ :each | Transcript crShow: 'Happy Birthday ', (each = 3 ifTrue: [ 'dear Mr. President' ] ifFalse: [ 'to You' ]) ] > > "--- 6. Filter list of numbers ---" > > | passed failed | > passed := OrderedCollection new. > failed := OrderedCollection new. > #(49 58 76 82 88 90) do: [ :each | (each > 60 ifTrue: [ passed ] ifFalse: [ failed ] ) add: each ]. > { passed. failed } > > #(49 58 76 82 88 90) groupedBy: [ :each | each > 60 ] > > "--- 7. Fetch and Parse an XML or JSON web service ---" > > XMLDOMParser parse: (ZnNeoClient new get: 'http://search.twitter.com/search.atom?&q=pharoproject') > > JSJsonParser parse: (ZnNeoClient new get: 'http://search.twitter.com/search.json?&q=pharoproject') > > "--- 8. Find minimum (or maximum) in a List ---" > > #(14 35 -7 46 98) fold: [ :x :y | x min: y ] > > #(14 35 -7 46 98) min > > #(14 35 -7 46 98) fold: [ :x :y | x max: y ] > > #(14 35 -7 46 98) max > > "--- 9. Parallel Processing ---" > > "No such standard support, but multithreading is of course available" > > "--- 10. Sieve of Eratosthenes ---" > > "Unreadable code is not a good idea, this is longer but readable" > > | primes | > primes := Array new: 100 withAll: true. > primes at: 1 put: false. > 2 to: primes size sqrt ceiling do: [ :each | You mean #sqrtFloor. > (primes at: each) ifTrue: [ > each * 2 to: primes size by: each do: [ :eachMultiple | Eratostheneses would start from each * each. > primes at: eachMultiple put: false ] ] ]. > OrderedCollection streamContents: [ :stream | Streaming into an OrderedCollection? Come on... Here's a version optimized for readibility & loc: Array streamContents: [ :primeStream | | sieve | sieve := Array new: 100 withAll: true. 2 to: sieve size do: [ :each | (sieve at: each) ifTrue: [ primeStream nextPut: each. each * each to: sieve size by: each do: [ :eachMultiple | sieve at: eachMultiple put: false ] ] ] ]. Levente > primes doWithIndex: [ :each :index | > each ifTrue: [ stream nextPut: index ] ] ] > > > Maybe we could turn this into a blog post after some discussion ? > > To really show off Smalltalk, we might need a couple more impressive examples. > > Sven > > >

Oct. 6, 2011

Re: [Pharo-project] Renaming "Announcement" into "Event"?

by Igor Stasenko

why wasting an energy on something, which not gives any benefits? i completely agree that proper naming is important. but the framework was originally designed not by us, and i think its not quite correct to rename it without asking the author. On 6 October 2011 16:21, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > What the whole world call "event" we call "announcement". > I understand the need for a new name back at the time where Smalltalk has its old event mechanism. But this does not hold anymore I feel. > > I though about this renaming when working on Pharo by example 2. Having "Event" instead of "Announcement" in the index tells much more what the chapter is about. > > Alexandre > > > On 6 Oct 2011, at 10:58, Fernando Olivero wrote: > >> I dont agree entirely with you Alex, nowadays we announce an >> announcement, instead of sending events. I mean, >> should we start announcing events? >> Fernando >> >> On Thu, Oct 6, 2011 at 3:15 PM, Alexandre Bergel >> <alexandre.bergel(a)me.com> wrote: >>> Hi! >>> >>> What about moving our rebelness and energy into innovation rather than giving strange name? :-) >>> >>> Cheers, >>> Alexandre >>> -- >>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >>> Alexandre Bergel Â http://www.bergel.eu >>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >>> >>> >>> >>> >>> >>> >>> >> > > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel Â http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > > > > -- Best regards, Igor Stasenko.

Oct. 6, 2011

Re: [Pharo-project] Renaming "Announcement" into "Event"?

by Alexandre Bergel

What the whole world call "event" we call "announcement". I understand the need for a new name back at the time where Smalltalk has its old event mechanism. But this does not hold anymore I feel. I though about this renaming when working on Pharo by example 2. Having "Event" instead of "Announcement" in the index tells much more what the chapter is about. Alexandre On 6 Oct 2011, at 10:58, Fernando Olivero wrote: > I dont agree entirely with you Alex, nowadays we announce an > announcement, instead of sending events. I mean, > should we start announcing events? > Fernando > > On Thu, Oct 6, 2011 at 3:15 PM, Alexandre Bergel > <alexandre.bergel(a)me.com> wrote: >> Hi! >> >> What about moving our rebelness and energy into innovation rather than giving strange name? :-) >> >> Cheers, >> Alexandre >> -- >> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >> Alexandre Bergel http://www.bergel.eu >> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >> >> >> >> >> >> >> > -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

Oct. 6, 2011

Re: [Pharo-project] Getting and loading each version of a package? (Gofer?)

by Lukas Renggli

No. I already told you where to start. Inspect the result you get when sending #allReferences to a Gofer instance. You might need to do some #select: and #do: on this collection. This is not more difficult than what you learn in the first hour of any Smalltalk course. Of course, the homework you have to do yourself :-) Lukas On 6 October 2011 15:41, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: > > > On Thu, Oct 6, 2011 at 3:34 PM, Lukas Renggli <renggli(a)gmail.com> wrote: >> >> Way easier is to ask the Gofer instance setup with repositories for >> #allReferences. You then get objects with each reachable version, and >> can access things like version number, package name, branch name, >> author name, ... using the accessors. To load the version you simply >> call #load. >> > > I couldn't understand anything hahhaha. Can you clarify or give me an > example in code? > > thanks! > >> >> Lukas >> >> On 6 October 2011 15:28, Schwab,Wilhelm K <bschwab(a)anest.ufl.edu> wrote: >> > Mariano, >> > >> > Below is something that was getting yanked from or with ScriptLoader, so >> > I included it in Migrate. Â The enumerating of versions could be of interest >> > to you. >> > >> > Bill >> > >> > >> > loadLatestPackage: aString fromRepository: aRepository >> > Â Â Â Â "1-10 - too useful to be without really, I created another. >> > Â Shamelessly >> > Â Â Â Â stolen from ScriptLoader." >> > >> > Â Â Â Â | versionsBlock versions tries version | >> > >> > Â Â Â Â versionsBlock := [ (aRepository allVersionNames select: [ :each | >> > Â Â Â Â Â Â Â Â each beginsWith: aString ]) >> > Â Â Â Â Â Â Â Â asSortedCollection: [ :a :b | >> > Â Â Â Â Â Â Â Â Â Â Â Â (a copyAfterLast: $.) asNumber <= (b >> > copyAfterLast: $.) asNumber]]. >> > Â Â Â Â versions := versionsBlock value. >> > Â Â Â Â tries := 0. >> > Â Â Â Â [ versions isEmpty and: [ tries < 3 ] ] whileTrue: [ >> > Â Â Â Â Â Â Â Â versions := versionsBlock value. >> > Â Â Â Â Â Â Â Â tries := tries + 1 ]. >> > Â Â Â Â versions isEmpty ifTrue: [ self error: 'problems when accessing >> > repository' ]. >> > >> > Â Â Â Â aRepository versionReaderForFileNamed: (versions last , '.mcz') >> > do: [:reader | >> > Â Â Â Â Â Â Â Â version := reader version. >> > Â Â Â Â Â Â Â Â version load. >> > Â Â Â Â Â Â Â Â version workingCopy repositoryGroup addRepository: >> > aRepository]. >> > >> > >> > ________________________________________ >> > From: pharo-project-bounces(a)lists.gforge.inria.fr >> > [pharo-project-bounces(a)lists.gforge.inria.fr] On Behalf Of Mariano Martinez >> > Peck [marianopeck(a)gmail.com] >> > Sent: Thursday, October 06, 2011 9:23 AM >> > To: Pharo-project(a)lists.gforge.inria.fr >> > Subject: Re: [Pharo-project] Getting and loading each version of a >> > package? Â Â (Gofer?) >> > >> > I need help with only one thing....get the list of version of a package. >> > I can manage the rest... >> > So I would like tp get all the versions of the package Fuel of the >> > squeaksource Fuel repo... >> > >> > thanks in advance, >> > >> > >> > On Thu, Oct 6, 2011 at 11:51 AM, Mariano Martinez Peck >> > <marianopeck(a)gmail.com<mailto:marianopeck@gmail.com>> wrote: >> > >> > >> > On Thu, Oct 6, 2011 at 11:50 AM, HwaJong Oh >> > <daliot.oh(a)gmail.com<mailto:daliot.oh@gmail.com>> wrote: >> > Mariano, >> > >> > For metacello or monticello? >> > >> > Monticello. >> > >> > >> > >> > HwaJong Oh >> > >> > -- >> > View this message in context: >> > http://forum.world.st/Getting-and-loading-each-version-of-a-package-Gofer-t… >> > Sent from the Pharo Smalltalk mailing list archive at Nabble.com. >> > >> > >> > >> > >> > -- >> > Mariano >> > http://marianopeck.wordpress.com >> > >> > >> > >> > >> > -- >> > Mariano >> > http://marianopeck.wordpress.com >> > >> > >> > >> >> >> >> -- >> Lukas Renggli >> www.lukas-renggli.ch >> > > > > -- > Mariano > http://marianopeck.wordpress.com > > -- Lukas Renggli www.lukas-renggli.ch

Oct. 6, 2011

Re: [Pharo-project] One Liners to Impress Your Friends

by Davide Varvello

Sven Van Caekenberghe wrote: > > I didn't see that post, but he's implementing the same examples ;-) > > I think it would be cool to come up with a nice list and put that on the > Pharo website. > > > Hi Sven, The post is here: http://varvello.blogspot.com/2011/06/test.html http://varvello.blogspot.com/2011/06/test.html and the examples are not really the same, you can also see a couple of bonuses at the bottom of the post. Cheers Davide ---- Blog: http://varvello.blogspot.com http://varvello.blogspot.com -- View this message in context: http://forum.world.st/One-Liners-to-Impress-Your-Friends-tp3877615p3878414.… Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

Oct. 6, 2011

Re: [Pharo-project] Renaming "Announcement" into "Event"?

by Denis Kudriashov

Hello, I always use Event suffix for my application Announcement subclasses 2011/10/6 Alexandre Bergel <alexandre.bergel(a)me.com> > Hi! > > What about moving our rebelness and energy into innovation rather than > giving strange name? :-) > > Cheers, > Alexandre > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > > > >

Oct. 6, 2011

Re: [Pharo-project] Renaming "Announcement" into "Event"?

by Fernando Olivero

I dont agree entirely with you Alex, nowadays we announce an announcement, instead of sending events. I mean, should we start announcing events? Fernando On Thu, Oct 6, 2011 at 3:15 PM, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > Hi! > > What about moving our rebelness and energy into innovation rather than giving strange name? :-) > > Cheers, > Alexandre > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel Â http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > > > >

Oct. 6, 2011

Re: [Pharo-project] Getting and loading each version of a package? (Gofer?)

by Mariano Martinez Peck

On Thu, Oct 6, 2011 at 3:34 PM, Lukas Renggli <renggli(a)gmail.com> wrote: > Way easier is to ask the Gofer instance setup with repositories for > #allReferences. You then get objects with each reachable version, and > can access things like version number, package name, branch name, > author name, ... using the accessors. To load the version you simply > call #load. > > I couldn't understand anything hahhaha. Can you clarify or give me an example in code? thanks! > Lukas > > On 6 October 2011 15:28, Schwab,Wilhelm K <bschwab(a)anest.ufl.edu> wrote: > > Mariano, > > > > Below is something that was getting yanked from or with ScriptLoader, so > I included it in Migrate. The enumerating of versions could be of interest > to you. > > > > Bill > > > > > > loadLatestPackage: aString fromRepository: aRepository > > "1-10 - too useful to be without really, I created another. > Shamelessly > > stolen from ScriptLoader." > > > > | versionsBlock versions tries version | > > > > versionsBlock := [ (aRepository allVersionNames select: [ :each | > > each beginsWith: aString ]) > > asSortedCollection: [ :a :b | > > (a copyAfterLast: $.) asNumber <= (b > copyAfterLast: $.) asNumber]]. > > versions := versionsBlock value. > > tries := 0. > > [ versions isEmpty and: [ tries < 3 ] ] whileTrue: [ > > versions := versionsBlock value. > > tries := tries + 1 ]. > > versions isEmpty ifTrue: [ self error: 'problems when accessing > repository' ]. > > > > aRepository versionReaderForFileNamed: (versions last , '.mcz') > do: [:reader | > > version := reader version. > > version load. > > version workingCopy repositoryGroup addRepository: > aRepository]. > > > > > > ________________________________________ > > From: pharo-project-bounces(a)lists.gforge.inria.fr [ > pharo-project-bounces(a)lists.gforge.inria.fr] On Behalf Of Mariano Martinez > Peck [marianopeck(a)gmail.com] > > Sent: Thursday, October 06, 2011 9:23 AM > > To: Pharo-project(a)lists.gforge.inria.fr > > Subject: Re: [Pharo-project] Getting and loading each version of a > package? (Gofer?) > > > > I need help with only one thing....get the list of version of a package. > I can manage the rest... > > So I would like tp get all the versions of the package Fuel of the > squeaksource Fuel repo... > > > > thanks in advance, > > > > > > On Thu, Oct 6, 2011 at 11:51 AM, Mariano Martinez Peck < > marianopeck(a)gmail.com<mailto:marianopeck@gmail.com>> wrote: > > > > > > On Thu, Oct 6, 2011 at 11:50 AM, HwaJong Oh <daliot.oh(a)gmail.com<mailto: > daliot.oh(a)gmail.com>> wrote: > > Mariano, > > > > For metacello or monticello? > > > > Monticello. > > > > > > > > HwaJong Oh > > > > -- > > View this message in context: > http://forum.world.st/Getting-and-loading-each-version-of-a-package-Gofer-t… > > Sent from the Pharo Smalltalk mailing list archive at Nabble.com. > > > > > > > > > > -- > > Mariano > > http://marianopeck.wordpress.com > > > > > > > > > > -- > > Mariano > > http://marianopeck.wordpress.com > > > > > > > > > > -- > Lukas Renggli > www.lukas-renggli.ch > > -- Mariano http://marianopeck.wordpress.com

Oct. 6, 2011

Re: [Pharo-project] One Liners to Impress Your Friends

by Bernat Romagosa

I've about 20 project Euler problems solved, most of them in one line. If we're to build a collection of one-liners, I could submit the best ones :) 2011/10/6 Marcus Denker <marcus.denker(a)inria.fr> > > On Oct 6, 2011, at 2:42 PM, Sven Van Caekenberghe wrote: > > > I didn't see that post, but he's implementing the same examples ;-) > > > > I think it would be cool to come up with a nice list and put that on the > Pharo website. > > > > Yes! > > And we need to fix > > "--- 9. Parallel Processing ---" > > ;-) > > Marcus > > -- > Marcus Denker -- http://marcusdenker.de > > > -- Bernat Romagosa.

Oct. 6, 2011