- Pharo-users - lists.pharo.org

Re: [Pharo-users] Fastest way to do case insensitive search and replace?

by Markus Fritsche

On 2014-12-11 13:48, Marcus Denker wrote: >> If >> MethodFinder methodFor: #(('HaLLol' 'll' 'tt') 'Hattol') >> doesn't find anything, does that mean "no" right away? > No, method finder uses a whitelist that is not maintained. Thanks for claryfying. The answer to my first question: | r | r := 'll' asRegexIgnoringCase. r copy: 'HaLLol' replacingMatchesWith: 'tt'.

Dec. 11, 2014

Re: [Pharo-users] New Pharo user, some questions

by David Boeren

I could, but if I do it before parsing, I only have to do the string replacement in one place. If I do it afterward, I have to apply it to every field separately which I think makes the code look messier. Anyway, I have tried applying it at the individual field level as a test but it didn't work there either. My primary concern at this point is just to get it working which has nothing to do with JSON at all, this is purely a string operation. On Thu, Dec 11, 2014 at 1:37 AM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > > On 11 Dec 2014, at 04:41, David Boeren <boerend(a)gmail.com> wrote: > > > > That's the next line of code after what I quoted: > > > > "Parse the JSON data returned by the api" > > data := NeoJSONReader fromString: response. > > > > But, prior to the JSON parsing I was doing a couple of string > replacements to patch up the data. The system I'm moving the data into > doesn't accept accented characters or bullets, and it wants empty strings > instead of nulls. > > You can do the replacements after parsing too, just manipulating the > generated data structures. I would say that is conceptually more correct. > > > All the JSON stuff works fine. It's just the string operations with > copyReplaceAll:with: that aren't working as expected for some reason. > > > > Or are you saying that the data I get from from asUrl retrieveContents > is not a "proper string" and maybe that's why it's not working? > > > > > > On Wed, Dec 10, 2014 at 6:34 PM, Sven Van Caekenberghe <sven(a)stfx.eu> > wrote: > > > > > On 10 Dec 2014, at 21:26, dboeren <boerend(a)gmail.com> wrote: > > > > > > "Fetch the raw JSON data from dtdb.co" > > > response := 'http://dtdb.co/api/cards/' asUrl retrieveContents > asString. > > > > Why no do > > > > NeoJSONReader fromString: 'http://dtdb.co/api/cards/' asUrl > retrieveContents > > > > ? > > > > You'll get the data back, nicely parsed and converted to proper Pharo > strings. > > > > Sven > > > > >

Dec. 11, 2014

Re: [Pharo-users] New Pharo user, some questions

by phil＠highoctane.be

On Thu, Dec 11, 2014 at 12:01 PM, kilon alios <kilon.alios(a)gmail.com> wrote: > can you resize the pharo windows ? I saw you struggle with it there > > It also looks like its crawling there , which iPad is this , which > generation ? > This is an iPad2. Pure Morphic is fine, what is not is Nautilus. I guess with AltBrowser it would be fine. I've had a game I wrote for kids (internal stuff done for my wife's kids help practice) and it was fine with drag and drop and all. Now for games on iOS I do use Monkey-X. But I'd love to have a Pharo set of classes that would be gaming specific. We could have very fast plugins for all the game engine and script it with Pharo. Kind of what one does with Lua. The touch paradigm is different from what one can do on a desktop. It is not that Pharo has to work on an iPad. What would be nicer is to have an image running on it and to which one would connect remotely for remote coding. What I was interested in with the bluetooth keyboard project is to see how to have a kind of dynabook style thing. But Apple has crippled a lot of things, like for an external keyboard support like this one has to use internal undocumented APIs for the gsEvents and this will prevent anything to go to the AppStore. And then one sees apps like iAWriter which has such keyboard support, that's weird. Also, as a result, you realize that there is no ESC key on an iPad, that you miss a ton of keys that you take for granted on a desktop. Also, all keyboard scancodes are different in various brands and it is a true ball of knots. No wonder Apple has one supersimplified protocol for input that prevents your from doing powerful keyboard based things. Meh. Long story short, Android looks much better in that regard, and that's where I am looking at these days. I've got a new Galaxy Alpha Octocore thing and frankly, it blows any iPhone 6 out of the water. I am done with iOS I'd say. When going to places, there are so much more Android devices than iDevices... These Android things are like the beige boxes of the 90's. You know who won at the time. So, next holidays, I'll have a look at CogDroid from JB. When one can buy a full quad core stick PC with 2G of RAM and 8G of storage for less than $50, well, choice is clear. An old example: http://www.laptopmag.com/reviews/mini-pcs/mk808-android-mini-pc That's where I want Pharo to run. Phil > > On Thu, Dec 11, 2014 at 10:09 AM, phil(a)highoctane.be <phil(a)highoctane.be> > wrote: > >> Pharo on iPad. >> >> http://youtu.be/7MNsUiCc5FQ >> Le 10 dÃ©c. 2014 21:26, "dboeren" <boerend(a)gmail.com> a Ã©crit : >> >> Now that my image is working properly again and the fires have been put >>> out, >>> I wanted to introduce myself a bit better... >>> >>> My name is David Boeren. I first learned Smalltalk back in college many >>> years ago, we used Smalltalk V in an object oriented programming class I >>> took which was first-half Smalltalk, second-half C++. This would be >>> about >>> 1992 I think? In recent years I've mainly been using Java, with >>> occasional >>> Python dabblings. I remember installing Squeak once or twice over the >>> years, but to be honest it felt a bit clunky, perhaps this was just an >>> early >>> primitive version or whatever. >>> >>> Recently, I've been getting the itch to try out some different >>> languages. I >>> was kind of looking at Scala or Clojure, one co-worker suggested Erlang, >>> and >>> so forth. But after doing a brief review I ended up coming back to >>> Smalltalk which even after all these years still stands right up with the >>> cutting edge I think. Sure, there are a few things that I think would >>> be a >>> little different if it were designed today like tuple support or >>> whatever, >>> but it feels like the right choice for something I'm going to use mainly >>> for >>> "fun" projects and the interactive environment is awesome. >>> >>> >>> One thing I wanted to ask about is the status of getting Pharo running on >>> iOS (or at least iPad). I found some old posts but nothing much within >>> the >>> last couple of years. I know there were app store policy issues in the >>> past >>> but I think that Apple has opened things up a bit since then, you can now >>> get Pythonista in the app store, or Codea. Is there still an obstacle >>> or is >>> it just something that hasn't been gotten around to yet? I'd love to >>> get it >>> running on my iPad Mini and be able to transmit code back and forth >>> between >>> there and my laptop to work on it wherever I'm at. >>> >>> >>> Second, I'm running into an oddity and I'm not sure what I'm doing wrong >>> or >>> whether this is a bug of some sort, this has to do with trying to replace >>> unicode characters in a string which seems like it should be a >>> straightforward operation. Here is my code: >>> >>> "Fetch the raw JSON data from dtdb.co" >>> response := 'http://dtdb.co/api/cards/' asUrl retrieveContents >>> asString. >>> >>> "Clean up the data a bit to make it a little more regular" >>> response := response copyReplaceAll: 'null' with: '""'. >>> response := response copyReplaceAll: '\u2022' with: ','. >>> response := response copyReplaceAll: '\u009e' with: 'e'. >>> >>> Basically I'm just pulling some JSON data and then doing a few string >>> replacements to make the data suit my needs. The first one works. The >>> second one works. Since the third one ALSO uses a \uXXXX code I would >>> expect it to work too, but it does not - the accented characters are >>> still >>> there. >>> >>> To get a bit more visibility into this, I copied the CopyReplaceAll code >>> from SequenceableCollection into a scratch class method and adding some >>> Transcript output: >>> >>> copyReplaceIn: aString All: oldSubCollection with: newCollection >>> "Answer a copy of the receiver in which all occurrences of >>> oldSubCollection have been replaced by newCollection " >>> >>> | startSearch currentIndex endIndex | >>> >>> Transcript show: 'start' ; cr. >>> startSearch := 1. >>> [(currentIndex := aString indexOfSubCollection: oldSubCollection >>> startingAt: startSearch) > 0] >>> whileTrue: [ >>> Transcript show: 'Found at index ' ; show: >>> currentIndex ; cr. >>> endIndex := currentIndex + oldSubCollection size >>> - 1. >>> aString := aString >>> copyReplaceFrom: currentIndex >>> to: endIndex >>> with: newCollection. >>> startSearch := currentIndex + >>> newCollection size]. >>> Transcript show: 'done' ; cr. >>> ^ aString >>> >>> A minimal test seemed to work: >>> HelloWorld copyReplaceIn: 'R\u00e9my Lapointe' All: '\u00e9' with: 'e'. >>> >>> start >>> Found at index 2 >>> done >>> >>> Testing this with the real data worked too: >>> HelloWorld copyReplaceIn: ('http://dtdb.co/api/cards/' asUrl >>> retrieveContents asString) All: '\u00e9' with: 'e'. >>> start >>> Found at index 22379 >>> Found at index 22500 >>> done >>> >>> >>> However, when I went back to using the regular copyReplaceAll:With: >>> method >>> it does not work and I'm not sure why. When it executes this: >>> aString indexOfSubCollection: oldSubCollection startingAt: startSearch >>> >>> The value comes back as 0 even though it's the same data from >>> 'http://dtdb.co/api/cards/' asUrl retrieveContents asString (I added a >>> "self >>> halt" to be able to step into the method and view the variable values), >>> and >>> I'm not sure what the difference is. There shouldn't be a limit on the >>> size >>> of the collection, should there? The whole thing is around 116k which is >>> big but not ridiculously so. It is however big enough that the debugger >>> can't show the whole value, or at least I haven't found a way to do so. >>> >>> >>> And last, is there a good video tutorial for the Pharo beginner on how to >>> use the various browsers, debugger, tools, etc... that come with Pharo? >>> I >>> would like to start learning more about the best ways to use these in my >>> development processes. I'm also having a lot of trouble finding the >>> correct >>> classes and message for what I want to do, searching online w/ Google >>> often >>> seem to turn up outdated information (or for a different smalltalk >>> flavor) >>> and it can take a while to figure out the correct way to do things. Is >>> there a good central reference for the APIs somewhere? I know that you >>> can >>> search in the browser but I usually don't know the name to search for. >>> It >>> would be good to have a handy reference detailing how to do all the >>> commonplace stuff. >>> >>> Thanks! >>> >>> >>> >>> -- >>> View this message in context: >>> http://forum.world.st/New-Pharo-user-some-questions-tp4795325.html >>> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >>> >>> >>> > -- --- Philippe Back Visible Performance Improvements Mob: +32(0) 478 650 140 | Fax: +32 (0) 70 408 027 Mail:phil@highoctane.be | Web: http://philippeback.eu Blog: http://philippeback.be | Twitter: @philippeback Youtube: http://www.youtube.com/user/philippeback/videos High Octane SPRL rue cour Boisacq 101 | 1301 Bierges | Belgium Pharo Consortium Member - http://consortium.pharo.org/ Featured on the Software Process and Measurement Cast - http://spamcast.libsyn.com Sparx Systems Enterprise Architect and Ability Engineering EADocX Value Added Reseller

Dec. 11, 2014

Open that fucking thing.

by Hans Schueren

Who says that programming in smalltalk is different from others ? You can write smalltalk with a simple Texteditor. However. I have written a simple program here , with smalltalk V 2.0 , 16bit 1. The programs name is : Prozentrechnung Only one class is the programm. Only one method is the program. ok. there could be more interdependencies such like "subroutines" not important for understanding 2. The method "startUpApplication" from the class "Notification" is responsible for opening the own programm. ( itself a class uhhhhhhhhh ) So the only thing you have to do is to tell the strartUpApplication method the program Name. here Prozentrechnung new open. thats all 3. Now you have to type a Method named open. for Notification to READ. 4. In most cases is is self and then the startmethod of your own program. Here in my program the Promter is asking first with a simple window to INPUT DATA ! Very simple and easy. I dont care about the endless procedures in other smalltalk implementations but one thing is shure . " i have opened that fucking thing here in smalltalk ! " _______________________________________________________________ Object subclass: #Prozentrechnung instanceVariableNames: 'Berechnung ' classVariableNames: '' poolDictionaries: '' ! !Prozentrechnung class methods ! ! !Prozentrechnung methods ! calculate "Simple Percentage Calculation" | x y ergebnis | x := Prompter prompt: 'Input a sum' default: ' '. x := x asInteger. y := Prompter prompt: 'Input percentage % : ' default: ' '. y := y asInteger. ergebnis := x * (y/100). MessageBox message: 'Ergebnis ist: ' , ergebnis printString! open "Open that fucking thing" self calculate! ! startUpApplication: oldWindows "Opens up the the run-time application window. oldWindows are the windows that were opened when the image was saved." "Replace the below code with the startup code for you application. For example: Puzzle15 new open." Prozentrechnung new open.

Dec. 11, 2014

Re: [Pharo-users] Fastest way to do case insensitive search and replace?

by Marcus Denker

> On 11 Dec 2014, at 13:42, Markus Fritsche <mfritsche(a)reauktion.de> wrote: > > Hi, > > is there a way to search case insensitively and replace in Strings in one shot? > If > MethodFinder methodFor: #(('HaLLol' 'll' 'tt') 'Hattol') > doesn't find anything, does that mean "no" right away? > No, method finder uses a whitelist that is not maintained. Marcus

Dec. 11, 2014

Fastest way to do case insensitive search and replace?

by Markus Fritsche

Hi, is there a way to search case insensitively and replace in Strings in one shot? If MethodFinder methodFor: #(('HaLLol' 'll' 'tt') 'Hattol') doesn't find anything, does that mean "no" right away? Kind regards Markus

Dec. 11, 2014

Re: [Pharo-users] New Pharo user, some questions

by kilon alios

can you resize the pharo windows ? I saw you struggle with it there It also looks like its crawling there , which iPad is this , which generation ? On Thu, Dec 11, 2014 at 10:09 AM, phil(a)highoctane.be <phil(a)highoctane.be> wrote: > Pharo on iPad. > > http://youtu.be/7MNsUiCc5FQ > Le 10 dÃ©c. 2014 21:26, "dboeren" <boerend(a)gmail.com> a Ã©crit : > > Now that my image is working properly again and the fires have been put >> out, >> I wanted to introduce myself a bit better... >> >> My name is David Boeren. I first learned Smalltalk back in college many >> years ago, we used Smalltalk V in an object oriented programming class I >> took which was first-half Smalltalk, second-half C++. This would be about >> 1992 I think? In recent years I've mainly been using Java, with >> occasional >> Python dabblings. I remember installing Squeak once or twice over the >> years, but to be honest it felt a bit clunky, perhaps this was just an >> early >> primitive version or whatever. >> >> Recently, I've been getting the itch to try out some different >> languages. I >> was kind of looking at Scala or Clojure, one co-worker suggested Erlang, >> and >> so forth. But after doing a brief review I ended up coming back to >> Smalltalk which even after all these years still stands right up with the >> cutting edge I think. Sure, there are a few things that I think would be >> a >> little different if it were designed today like tuple support or whatever, >> but it feels like the right choice for something I'm going to use mainly >> for >> "fun" projects and the interactive environment is awesome. >> >> >> One thing I wanted to ask about is the status of getting Pharo running on >> iOS (or at least iPad). I found some old posts but nothing much within >> the >> last couple of years. I know there were app store policy issues in the >> past >> but I think that Apple has opened things up a bit since then, you can now >> get Pythonista in the app store, or Codea. Is there still an obstacle or >> is >> it just something that hasn't been gotten around to yet? I'd love to get >> it >> running on my iPad Mini and be able to transmit code back and forth >> between >> there and my laptop to work on it wherever I'm at. >> >> >> Second, I'm running into an oddity and I'm not sure what I'm doing wrong >> or >> whether this is a bug of some sort, this has to do with trying to replace >> unicode characters in a string which seems like it should be a >> straightforward operation. Here is my code: >> >> "Fetch the raw JSON data from dtdb.co" >> response := 'http://dtdb.co/api/cards/' asUrl retrieveContents >> asString. >> >> "Clean up the data a bit to make it a little more regular" >> response := response copyReplaceAll: 'null' with: '""'. >> response := response copyReplaceAll: '\u2022' with: ','. >> response := response copyReplaceAll: '\u009e' with: 'e'. >> >> Basically I'm just pulling some JSON data and then doing a few string >> replacements to make the data suit my needs. The first one works. The >> second one works. Since the third one ALSO uses a \uXXXX code I would >> expect it to work too, but it does not - the accented characters are still >> there. >> >> To get a bit more visibility into this, I copied the CopyReplaceAll code >> from SequenceableCollection into a scratch class method and adding some >> Transcript output: >> >> copyReplaceIn: aString All: oldSubCollection with: newCollection >> "Answer a copy of the receiver in which all occurrences of >> oldSubCollection have been replaced by newCollection " >> >> | startSearch currentIndex endIndex | >> >> Transcript show: 'start' ; cr. >> startSearch := 1. >> [(currentIndex := aString indexOfSubCollection: oldSubCollection >> startingAt: startSearch) > 0] >> whileTrue: [ >> Transcript show: 'Found at index ' ; show: >> currentIndex ; cr. >> endIndex := currentIndex + oldSubCollection size >> - 1. >> aString := aString >> copyReplaceFrom: currentIndex >> to: endIndex >> with: newCollection. >> startSearch := currentIndex + >> newCollection size]. >> Transcript show: 'done' ; cr. >> ^ aString >> >> A minimal test seemed to work: >> HelloWorld copyReplaceIn: 'R\u00e9my Lapointe' All: '\u00e9' with: 'e'. >> >> start >> Found at index 2 >> done >> >> Testing this with the real data worked too: >> HelloWorld copyReplaceIn: ('http://dtdb.co/api/cards/' asUrl >> retrieveContents asString) All: '\u00e9' with: 'e'. >> start >> Found at index 22379 >> Found at index 22500 >> done >> >> >> However, when I went back to using the regular copyReplaceAll:With: method >> it does not work and I'm not sure why. When it executes this: >> aString indexOfSubCollection: oldSubCollection startingAt: startSearch >> >> The value comes back as 0 even though it's the same data from >> 'http://dtdb.co/api/cards/' asUrl retrieveContents asString (I added a >> "self >> halt" to be able to step into the method and view the variable values), >> and >> I'm not sure what the difference is. There shouldn't be a limit on the >> size >> of the collection, should there? The whole thing is around 116k which is >> big but not ridiculously so. It is however big enough that the debugger >> can't show the whole value, or at least I haven't found a way to do so. >> >> >> And last, is there a good video tutorial for the Pharo beginner on how to >> use the various browsers, debugger, tools, etc... that come with Pharo? I >> would like to start learning more about the best ways to use these in my >> development processes. I'm also having a lot of trouble finding the >> correct >> classes and message for what I want to do, searching online w/ Google >> often >> seem to turn up outdated information (or for a different smalltalk flavor) >> and it can take a while to figure out the correct way to do things. Is >> there a good central reference for the APIs somewhere? I know that you >> can >> search in the browser but I usually don't know the name to search for. It >> would be good to have a handy reference detailing how to do all the >> commonplace stuff. >> >> Thanks! >> >> >> >> -- >> View this message in context: >> http://forum.world.st/New-Pharo-user-some-questions-tp4795325.html >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >> >> >>

Dec. 11, 2014

Re: [Pharo-users] New Pharo user, some questions

by kilon alios

That is what a pharo app is , its just a copy of the ide, the language and the tools together with some additional code. You can hide the IDE from the user of course but it would be still there unless you remove it. If you plan to distribute the exposed IDE you need to check with Apple license terms because I think they still have restrictions on this. So your limitation is Apple and not Pharo ;) Of course if you want to use the IDE only for yourself you have no issues there and you dont need Apple's permission. Of course since people dont code Pharo on their ipads (I am not a fa of the idea myself I like my 27'' iMac too much :D) you most likely run into unresolved problems. So I would not recommend Pharo on iOS personally even though people have done this , but you can try it yourself and make your own mind ;) On Thu, Dec 11, 2014 at 6:06 AM, David Boeren <boerend(a)gmail.com> wrote: > Sorry, I may not have been clear with my iOS question. What I'm > interested in is running the development environment on iPad, not just a > deployed app (although that is handy too). There are other apps that let > you write code, compile it, and run it all on your iOS device without > needing a computer or external compiler so I'm thinking that if they pass > the app store criteria that perhaps Pharo or another Smalltalk could also > do so. > > Thanks for the video link, I'll check it out. > > > On Wed, Dec 10, 2014 at 4:53 PM, kilon alios <kilon.alios(a)gmail.com> > wrote: > >> I cant answer your JSON question but I can answer the other two questions >> a) iOS b) Pharo video tutorial >> >> a) as far iOS is concerned, yes pharo runs fine on it. I am not so sure >> about the new vm Cog but there are 2 commercial pharo apps by the same >> developer on Apple Story one is called DrGeo, which is a very cool app for >> teaching kids and grown apps about geometry and iStoa which is another >> educational app. So yes pharo looks fine on iOS platform. >> >> b) about video tutorial, I am actually making a series of tutorial that I >> call "Pharo Video Tutorial" using Pharo 3 and now I am using Pharo 4 , I >> like to teach people the cutting edge and you can find a playlist with >> those tutorial here >> >> >> https://www.youtube.com/watch?v=Ol5ivaEATLQ&list=PLqbtQ7OkSta0ULYAd7Qdxof85… >> >> you can ommit the first one is about a general intro to pharo and the >> second which is how to install pharo , the rest are all 100% practical and >> I try to keep the blah blah to a minimum. Excluding the first hour you >> have a total of 3 hours cut down to 10 minutes more or less video tutorials >> that will give you a very solid introduction to Pharo. Is an ongoing effort >> so subscribe to be notified about new tutorials. >> >> On Wed, Dec 10, 2014 at 10:26 PM, dboeren <boerend(a)gmail.com> wrote: >> >>> Now that my image is working properly again and the fires have been put >>> out, >>> I wanted to introduce myself a bit better... >>> >>> My name is David Boeren. I first learned Smalltalk back in college many >>> years ago, we used Smalltalk V in an object oriented programming class I >>> took which was first-half Smalltalk, second-half C++. This would be >>> about >>> 1992 I think? In recent years I've mainly been using Java, with >>> occasional >>> Python dabblings. I remember installing Squeak once or twice over the >>> years, but to be honest it felt a bit clunky, perhaps this was just an >>> early >>> primitive version or whatever. >>> >>> Recently, I've been getting the itch to try out some different >>> languages. I >>> was kind of looking at Scala or Clojure, one co-worker suggested Erlang, >>> and >>> so forth. But after doing a brief review I ended up coming back to >>> Smalltalk which even after all these years still stands right up with the >>> cutting edge I think. Sure, there are a few things that I think would >>> be a >>> little different if it were designed today like tuple support or >>> whatever, >>> but it feels like the right choice for something I'm going to use mainly >>> for >>> "fun" projects and the interactive environment is awesome. >>> >>> >>> One thing I wanted to ask about is the status of getting Pharo running on >>> iOS (or at least iPad). I found some old posts but nothing much within >>> the >>> last couple of years. I know there were app store policy issues in the >>> past >>> but I think that Apple has opened things up a bit since then, you can now >>> get Pythonista in the app store, or Codea. Is there still an obstacle >>> or is >>> it just something that hasn't been gotten around to yet? I'd love to >>> get it >>> running on my iPad Mini and be able to transmit code back and forth >>> between >>> there and my laptop to work on it wherever I'm at. >>> >>> >>> Second, I'm running into an oddity and I'm not sure what I'm doing wrong >>> or >>> whether this is a bug of some sort, this has to do with trying to replace >>> unicode characters in a string which seems like it should be a >>> straightforward operation. Here is my code: >>> >>> "Fetch the raw JSON data from dtdb.co" >>> response := 'http://dtdb.co/api/cards/' asUrl retrieveContents >>> asString. >>> >>> "Clean up the data a bit to make it a little more regular" >>> response := response copyReplaceAll: 'null' with: '""'. >>> response := response copyReplaceAll: '\u2022' with: ','. >>> response := response copyReplaceAll: '\u009e' with: 'e'. >>> >>> Basically I'm just pulling some JSON data and then doing a few string >>> replacements to make the data suit my needs. The first one works. The >>> second one works. Since the third one ALSO uses a \uXXXX code I would >>> expect it to work too, but it does not - the accented characters are >>> still >>> there. >>> >>> To get a bit more visibility into this, I copied the CopyReplaceAll code >>> from SequenceableCollection into a scratch class method and adding some >>> Transcript output: >>> >>> copyReplaceIn: aString All: oldSubCollection with: newCollection >>> "Answer a copy of the receiver in which all occurrences of >>> oldSubCollection have been replaced by newCollection " >>> >>> | startSearch currentIndex endIndex | >>> >>> Transcript show: 'start' ; cr. >>> startSearch := 1. >>> [(currentIndex := aString indexOfSubCollection: oldSubCollection >>> startingAt: startSearch) > 0] >>> whileTrue: [ >>> Transcript show: 'Found at index ' ; show: >>> currentIndex ; cr. >>> endIndex := currentIndex + oldSubCollection size >>> - 1. >>> aString := aString >>> copyReplaceFrom: currentIndex >>> to: endIndex >>> with: newCollection. >>> startSearch := currentIndex + >>> newCollection size]. >>> Transcript show: 'done' ; cr. >>> ^ aString >>> >>> A minimal test seemed to work: >>> HelloWorld copyReplaceIn: 'R\u00e9my Lapointe' All: '\u00e9' with: 'e'. >>> >>> start >>> Found at index 2 >>> done >>> >>> Testing this with the real data worked too: >>> HelloWorld copyReplaceIn: ('http://dtdb.co/api/cards/' asUrl >>> retrieveContents asString) All: '\u00e9' with: 'e'. >>> start >>> Found at index 22379 >>> Found at index 22500 >>> done >>> >>> >>> However, when I went back to using the regular copyReplaceAll:With: >>> method >>> it does not work and I'm not sure why. When it executes this: >>> aString indexOfSubCollection: oldSubCollection startingAt: startSearch >>> >>> The value comes back as 0 even though it's the same data from >>> 'http://dtdb.co/api/cards/' asUrl retrieveContents asString (I added a >>> "self >>> halt" to be able to step into the method and view the variable values), >>> and >>> I'm not sure what the difference is. There shouldn't be a limit on the >>> size >>> of the collection, should there? The whole thing is around 116k which is >>> big but not ridiculously so. It is however big enough that the debugger >>> can't show the whole value, or at least I haven't found a way to do so. >>> >>> >>> And last, is there a good video tutorial for the Pharo beginner on how to >>> use the various browsers, debugger, tools, etc... that come with Pharo? >>> I >>> would like to start learning more about the best ways to use these in my >>> development processes. I'm also having a lot of trouble finding the >>> correct >>> classes and message for what I want to do, searching online w/ Google >>> often >>> seem to turn up outdated information (or for a different smalltalk >>> flavor) >>> and it can take a while to figure out the correct way to do things. Is >>> there a good central reference for the APIs somewhere? I know that you >>> can >>> search in the browser but I usually don't know the name to search for. >>> It >>> would be good to have a handy reference detailing how to do all the >>> commonplace stuff. >>> >>> Thanks! >>> >>> >>> >>> -- >>> View this message in context: >>> http://forum.world.st/New-Pharo-user-some-questions-tp4795325.html >>> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >>> >>> >> >

Dec. 11, 2014

Re: [Pharo-users] New Pharo user, some questions

by phil＠highoctane.be

Pharo on iPad. http://youtu.be/7MNsUiCc5FQ Le 10 dÃ©c. 2014 21:26, "dboeren" <boerend(a)gmail.com> a Ã©crit : > Now that my image is working properly again and the fires have been put > out, > I wanted to introduce myself a bit better... > > My name is David Boeren. I first learned Smalltalk back in college many > years ago, we used Smalltalk V in an object oriented programming class I > took which was first-half Smalltalk, second-half C++. This would be about > 1992 I think? In recent years I've mainly been using Java, with occasional > Python dabblings. I remember installing Squeak once or twice over the > years, but to be honest it felt a bit clunky, perhaps this was just an > early > primitive version or whatever. > > Recently, I've been getting the itch to try out some different languages. > I > was kind of looking at Scala or Clojure, one co-worker suggested Erlang, > and > so forth. But after doing a brief review I ended up coming back to > Smalltalk which even after all these years still stands right up with the > cutting edge I think. Sure, there are a few things that I think would be a > little different if it were designed today like tuple support or whatever, > but it feels like the right choice for something I'm going to use mainly > for > "fun" projects and the interactive environment is awesome. > > > One thing I wanted to ask about is the status of getting Pharo running on > iOS (or at least iPad). I found some old posts but nothing much within the > last couple of years. I know there were app store policy issues in the > past > but I think that Apple has opened things up a bit since then, you can now > get Pythonista in the app store, or Codea. Is there still an obstacle or > is > it just something that hasn't been gotten around to yet? I'd love to get > it > running on my iPad Mini and be able to transmit code back and forth between > there and my laptop to work on it wherever I'm at. > > > Second, I'm running into an oddity and I'm not sure what I'm doing wrong or > whether this is a bug of some sort, this has to do with trying to replace > unicode characters in a string which seems like it should be a > straightforward operation. Here is my code: > > "Fetch the raw JSON data from dtdb.co" > response := 'http://dtdb.co/api/cards/' asUrl retrieveContents > asString. > > "Clean up the data a bit to make it a little more regular" > response := response copyReplaceAll: 'null' with: '""'. > response := response copyReplaceAll: '\u2022' with: ','. > response := response copyReplaceAll: '\u009e' with: 'e'. > > Basically I'm just pulling some JSON data and then doing a few string > replacements to make the data suit my needs. The first one works. The > second one works. Since the third one ALSO uses a \uXXXX code I would > expect it to work too, but it does not - the accented characters are still > there. > > To get a bit more visibility into this, I copied the CopyReplaceAll code > from SequenceableCollection into a scratch class method and adding some > Transcript output: > > copyReplaceIn: aString All: oldSubCollection with: newCollection > "Answer a copy of the receiver in which all occurrences of > oldSubCollection have been replaced by newCollection " > > | startSearch currentIndex endIndex | > > Transcript show: 'start' ; cr. > startSearch := 1. > [(currentIndex := aString indexOfSubCollection: oldSubCollection > startingAt: startSearch) > 0] > whileTrue: [ > Transcript show: 'Found at index ' ; show: > currentIndex ; cr. > endIndex := currentIndex + oldSubCollection size - > 1. > aString := aString > copyReplaceFrom: currentIndex > to: endIndex > with: newCollection. > startSearch := currentIndex + > newCollection size]. > Transcript show: 'done' ; cr. > ^ aString > > A minimal test seemed to work: > HelloWorld copyReplaceIn: 'R\u00e9my Lapointe' All: '\u00e9' with: 'e'. > > start > Found at index 2 > done > > Testing this with the real data worked too: > HelloWorld copyReplaceIn: ('http://dtdb.co/api/cards/' asUrl > retrieveContents asString) All: '\u00e9' with: 'e'. > start > Found at index 22379 > Found at index 22500 > done > > > However, when I went back to using the regular copyReplaceAll:With: method > it does not work and I'm not sure why. When it executes this: > aString indexOfSubCollection: oldSubCollection startingAt: startSearch > > The value comes back as 0 even though it's the same data from > 'http://dtdb.co/api/cards/' asUrl retrieveContents asString (I added a > "self > halt" to be able to step into the method and view the variable values), and > I'm not sure what the difference is. There shouldn't be a limit on the > size > of the collection, should there? The whole thing is around 116k which is > big but not ridiculously so. It is however big enough that the debugger > can't show the whole value, or at least I haven't found a way to do so. > > > And last, is there a good video tutorial for the Pharo beginner on how to > use the various browsers, debugger, tools, etc... that come with Pharo? I > would like to start learning more about the best ways to use these in my > development processes. I'm also having a lot of trouble finding the > correct > classes and message for what I want to do, searching online w/ Google often > seem to turn up outdated information (or for a different smalltalk flavor) > and it can take a while to figure out the correct way to do things. Is > there a good central reference for the APIs somewhere? I know that you can > search in the browser but I usually don't know the name to search for. It > would be good to have a handy reference detailing how to do all the > commonplace stuff. > > Thanks! > > > > -- > View this message in context: > http://forum.world.st/New-Pharo-user-some-questions-tp4795325.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > >

Dec. 11, 2014

Re: [Pharo-users] command line access to MetaRepoForPharo30

by Esteban Lorenzano

> On 11 Dec 2014, at 09:00, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > >> On 11 Dec 2014, at 05:54, Yanni Chiu <yanni(a)rogers.com> wrote: >> >> Is there something broken in the MetaRepoForPharo30 on SmalltalkHub? >> >> This was the first time I was trying the command line interface to install code, and it took me a while to figure out that it was the MetaRepoForPharo30 repository (and not my image/vm). In the log below, when looking for configurations in the Fuel repo, the result is normal. Also, SS3 and mc.stfx.eu/ZincHTTPComponents gave normal results. >> >> ===== >> >> Pharo3.0 >> Latest update: #30860 >> >> yanni@foobar:~/cc/work$ ./pharo Pharo.image --version >> M: NBCoInterpreter NativeBoost-CogPlugin-EstebanLorenzano.18 uuid: a53445f9-c0c0-4015-97a3-be7db8d9ed6b Mar 13 2013 >> NBCogit NativeBoost-CogPlugin-EstebanLorenzano.18 uuid: a53445f9-c0c0-4015-97a3-be7db8d9ed6b Mar 13 2013 >> git://gitorious.org/cogvm/blessed.git Commit: 412abef33cbed05cf1d75329e451d71c0c6aa5a7 Date: 2013-03-13 17:48:50 +0100 By: Esteban Lorenzano <estebanlm(a)gmail.com> Jenkins build #14535 >> >> ===== >> >> yanni@foobar:~/cc/work$ ./pharo Pharo.image config http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo30/main > > That cannot work, there is no ConfigurationOfMetaRepoForPharo30 > MetaRepoForPharo30 is special, it contains many different configurations. > The config command tries to be clever and resolves one configuration based on the repository name. if you do: $ ./pharo Pharo.image config http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo30/main <http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo30/main> ConfigurationOfWhatYouWant it should work. This is the help for that command: Command line handler for dealing with Metacello configurations from the command line Usage: config [--help] <repository url> [<configuration>] [--install[=<version>]] [--group=<group>] [--username=<username>] [--password=<password>] --help show this help message <repository url> A Monticello repository name <configuration> A valid Metacello Configuration name <version> A valid version for the given configuration <group> A valid Metacello group name <username> An optional username to access the configuration's repository <password> An optional password to access the configuration's repository Examples: # display this help message pharo Pharo.image config # list all configurations of a repository pharo Pharo.image config $MC_REPOS_URL # list all the available versions of a confgurtation pharo Pharo.image config $MC_REPOS_URL ConfigurationOfFoo # install the stable version pharo Pharo.image config $MC_REPOS_URL ConfigurationOfFoo --install #install a specific version '1.5' pharo Pharo.image config $MC_REPOS_URL ConfigurationOfFoo --install=1.5 #install a specific version '1.5' and only a specific group 'Tests' pharo Pharo.image config $MC_REPOS_URL ConfigurationOfFoo --install=1.5 --group=Tests (which you have if you type $ ./pharo Pharo.image config âhelp ) Esteban > >> Error: Unable to resolve ConfigurationOfMetaRepoForPharo30 >> GoferConfigurationReference(Object)>>error: >> GoferConfigurationReference(GoferReference)>>resolveWith: >> Gofer>>resolved in Block: [ :each | each resolveWith: self ] >> Array(SequenceableCollection)>>collect: >> Gofer>>resolved >> GoferLoad>>initializeOn: >> GoferLoad class(GoferOperation class)>>on: >> Gofer>>execute:do: >> Gofer>>execute: >> Gofer>>load >> ConfigurationCommandLineHandler>>configuration >> ConfigurationCommandLineHandler>>project >> ConfigurationCommandLineHandler>>listConfigurationDetails >> ConfigurationCommandLineHandler>>list >> ConfigurationCommandLineHandler>>activate >> ConfigurationCommandLineHandler class(CommandLineHandler class)>>activateWith: >> PharoCommandLineHandler(BasicCommandLineHandler)>>activateSubCommand: in Block: [ aCommandLinehandler activateWith: commandLine ] >> BlockClosure>>on:do: >> PharoCommandLineHandler(BasicCommandLineHandler)>>activateSubCommand: >> PharoCommandLineHandler(BasicCommandLineHandler)>>handleSubcommand >> PharoCommandLineHandler(BasicCommandLineHandler)>>handleArgument: >> PharoCommandLineHandler(BasicCommandLineHandler)>>activate in Block: [ self handleArgument: (self arguments ifEmpty: [ ...etc... >> BlockClosure>>on:do: >> PharoCommandLineHandler(BasicCommandLineHandler)>>activate >> PharoCommandLineHandler>>activate >> PharoCommandLineHandler class(CommandLineHandler class)>>activateWith: >> PharoCommandLineHandler class>>activateWith: in Block: [ super activateWith: aCommandLine ] >> WorldState>>runStepMethodsIn: >> WorldMorph>>runStepMethods >> WorldState>>doOneCycleNowFor: >> >> yanni@foobar:~/cc/work$ ./pharo Pharo.image config http://smalltalkhub.com/mc/Pharo/Fuel/main >> 'Available versions for ConfigurationOfFuel' >> 1.0 >> 1.0-baseline >> 1.1 >> 1.1-baseline >> 1.2 >> 1.2-baseline >> 1.3 >> 1.4 >> 1.5 >> 1.5-baseline >> 1.6 >> 1.6-baseline >> 1.6.1 >> 1.7 >> 1.7-baseline >> 1.8 >> 1.8-baseline >> 1.8-beta1 >> 1.8-forMarea >> 1.8.1 >> 1.8.1-baseline >> 1.8.2 >> 1.8.2-baseline >> 1.9 >> 1.9-alphaForTanker >> 1.9-alphaForTanker-baseline >> 1.9-baseline >> 1.9.1 >> 1.9.2 >> 1.9.2-baseline >> 1.9.3 >> 1.9.3-baseline >> 1.9.4 >> 2.0.0-baseline >> bleedingEdge >> development >> last >> stable >> >> >> > >

Dec. 11, 2014