- Pharo-users - lists.pharo.org

Mea Culpa
by horrido Aug. 14, 2016

Aug. 14, 2016

Okay, so far, I've made two mistakes. First was my lack of sensitivity to cultural differences around the world. Now that I know better, I shall do better. Second was my failure to distinguish between different subgroups within the Pharo forum. The reason I chose Pharo forum to discuss my campaign was the fact that it is the most active Smalltalk forum there is. People who are interested in Smalltalk join the most active forum generally, and this includes not only Pharoers, but people from ESUG, Squeak, Cincom, Amber, Redline, etc. So, for example, when I appealed for contributors to the Redline project, I should've distinguished the target audience as those groups other than Pharoers. This was my failure and I own up to it. It is unfortunate that I must use the Pharo forum for this purpose. The Smalltalk community is so terribly fragmented that there is no universal Smalltalk forum to address, at least, none that is actually *inhabited*. Without the ability to address the largest number of Smalltalkers, the SRP cannot make any progress. I'm sorry, but I have to be blunt. If anyone can offer a practical alternative, I'd like to hear it. Otherwise, the SRP has only two choices: 1) Continue what it is doing on the Pharo forum, and be mindful of which group(s) I am addressing. 2) Fold up the campaign and leave the destiny of Smalltalk to the Fates. Without the ability to reach out to Smalltalkers everywhere, I am hopelessly disadvantaged. Regards, Richard -- View this message in context: http://forum.world.st/Mea-Culpa-tp4800840.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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changing theme colors of windows without closing them
by Peter Uhnak Aug. 14, 2016

Aug. 14, 2016

Hi, I fairly often switch themes (sometimes daily), and the fact that windows don't properly switch is quite annoying as I have to close literally everything and start over. Is there a way to force-reload the colors without closing the windows? For Nautilus I could probably script something like this (NautilusUI allInstances select: [ :each | each window owner = World ]) do: [ :each | |new| new := each fullBrowse. new ui window position: each window position. each close. ]. both for the rest (GTInspector in particular) I cannot just close them because I have live data there. Thanks, Peter

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How does one specify a format for an ImageMorph based on a binary stream
by Andy Burnett Aug. 14, 2016

Aug. 14, 2016

I am trying to do some simple image manipulation. Basically, I want to subtract one image from another, to see what's left. As an experiment, did aStream := ReadStream on: image1 imageExport. newImageMorph := ImageMorph fromStream:aStream. Unfortunately, this fails because there is no subclass to handle the binary stream. I couldn't find a way to specify what format the image was in. Does anyone know how to do this? Cheers Andy

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hooking into GTInspector tags
by Peter Uhnak Aug. 13, 2016

Aug. 13, 2016

Hi, how can one hook into the GTInspector tags that can be filtered? Apparently I can assign a presentation to a tag with `<gtInspectorTag: #examples>`, however this works only if the tag name was already added. As this was done in GTInspector>>initialize, it makes the whole filtering idea quite useless (unless I explicitly initialize GTInspector, which is not the natural approach). Can't it just collect all the tags from the current presentations? Or can I somehow access the GTInspector instance from the `composite` argument? Thanks, Peter

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[Garage] How to espace sql special chars in a query?
by Blondeau Vincent Aug. 12, 2016

Aug. 12, 2016

Hello, I am looking for a method that escape special characters for SQL queries. E.g.: I want to escape : ' in a where expression: '....Where field1 = ''', myvariable , ''' .....' with myvariable := 'don''t do'. I am using garage and haven't found it in the package. Does someone know where I can found it? Thanks in advance, Best regards, Vincent !!!************************************************************************************* "Ce message et les pi?ces jointes sont confidentiels et r?serv?s ? l'usage exclusif de ses destinataires. Il peut ?galement ?tre prot?g? par le secret professionnel. Si vous recevez ce message par erreur, merci d'en avertir imm?diatement l'exp?diteur et de le d?truire. L'int?grit? du message ne pouvant ?tre assur?e sur Internet, la responsabilit? de Worldline ne pourra ?tre recherch?e quant au contenu de ce message. Bien que les meilleurs efforts soient faits pour maintenir cette transmission exempte de tout virus, l'exp?diteur ne donne aucune garantie ? cet ?gard et sa responsabilit? ne saurait ?tre recherch?e pour tout dommage r?sultant d'un virus transmis. This e-mail and the documents attached are confidential and intended solely for the addressee; it may also be privileged. If you receive this e-mail in error, please notify the sender immediately and destroy it. As its integrity cannot be secured on the Internet, the Worldline liability cannot be triggered for the message content. Although the sender endeavours to maintain a computer virus-free network, the sender does not warrant that this transmission is virus-free and will not be liable for any damages resulting from any virus transmitted.!!!"

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SUnit and "data driven" tests
by Holger Freyther Aug. 12, 2016

Aug. 12, 2016

Hi, I have a test/algorithm that I would like to test with different sets of input (and matching expected) output. Let's imagine I write a protocol library for the RTP streaming protocol and would like to verify my implementation of sequence number wrapping and jitter delay, e.g. the difficulty is to deal with the sequence number counter wrapping. My test-input is an array of sequence numbers and their arrival time and the expected result would be a calculation of "packet loss", jitter. I would like SUnit to call my testcase multiple times with different data being available. Is something like this supported with SUnit? thank you holger

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Re: [Pharo-users] [Garage] How to espace sql special chars in a query?
by Blondeau Vincent Aug. 12, 2016

Aug. 12, 2016

Hi, Prepared statements can be a solution but I would like to have a simpler one. In the worst case, I may use that. Vincent > -----Message d'origine----- > De : Pharo-users [mailto:pharo-users-bounces@lists.pharo.org] De la part de > Holger Freyther > EnvoyÃ© : vendredi 12 aoÃ»t 2016 10:45 > Ã : Any question about pharo is welcome > Objet : Re: [Pharo-users] [Garage] How to espace sql special chars in a query? > > > > On 12 Aug 2016, at 10:34, Blondeau Vincent > <vincent.blondeau(a)worldline.com> wrote: > > > > Hello, > > Hi > > > > I am looking for a method that escape special characters for SQL queries. > > E.g.: I want to escape : â in a where expression: ââ¦.Where field1 = âââ, > myvariable , âââ â¦..â with myvariable := âdonâât doâ. > > I am using garage and haven't found it in the package. Does someone know > where I can found it? > > > I have used prepared statements for that. They allow me to bind the variable > to the statement and I don't have to worry about escaping (at least that is the > theory). > > holger !!!************************************************************************************* "Ce message et les piÃ¨ces jointes sont confidentiels et rÃ©servÃ©s Ã l'usage exclusif de ses destinataires. Il peut Ã©galement Ãªtre protÃ©gÃ© par le secret professionnel. Si vous recevez ce message par erreur, merci d'en avertir immÃ©diatement l'expÃ©diteur et de le dÃ©truire. L'intÃ©gritÃ© du message ne pouvant Ãªtre assurÃ©e sur Internet, la responsabilitÃ© de Worldline ne pourra Ãªtre recherchÃ©e quant au contenu de ce message. Bien que les meilleurs efforts soient faits pour maintenir cette transmission exempte de tout virus, l'expÃ©diteur ne donne aucune garantie Ã cet Ã©gard et sa responsabilitÃ© ne saurait Ãªtre recherchÃ©e pour tout dommage rÃ©sultant d'un virus transmis. This e-mail and the documents attached are confidential and intended solely for the addressee; it may also be privileged. If you receive this e-mail in error, please notify the sender immediately and destroy it. As its integrity cannot be secured on the Internet, the Worldline liability cannot be triggered for the message content. Although the sender endeavours to maintain a computer virus-free network, the sender does not warrant that this transmission is virus-free and will not be liable for any damages resulting from any virus transmitted.!!!"

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RewriteTool matching parts of an array
by Peter UhnÃ¡k Aug. 11, 2016

Aug. 11, 2016

Hi, I wanted to use RewriteTool to rewrite dynamic arrays Source AST: | base | base := {#Department -> {710 @ 255. Color lightMagenta}} matching AST: | base | base := {#Department -> {``@first. ``@second}} transformation: | base | base := {#Department -> (Array with: ``@first with: ``@second)} However when I tried to execute it I was met with DNU OrderedCollection>>parent: It seems that the @first/@second part are not matched properly. Any way to fix this? Or am I doing it wrong? Thanks, Peter

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manipulating strings
by stepharo Aug. 11, 2016

Aug. 11, 2016

Hi I have the following problem I want to transform a string into another while removing a set of characters 'Uquillas G\'{o}mez' -> 'uquillasgomez' And I wonder how to do that? copyWithoutAll: I was thinking to create a string of the same size and copy only the valid characters. Now I do not know how to set the size of the resulting string. I could use stream. Any ideas is welcome. Stef

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Some interesting datasets | https://numeracy.co
by Sven Van Caekenberghe Aug. 10, 2016

Aug. 10, 2016

Hi, I know a lot of people are interested in (public) datasets (to use as examples). The website https://numeracy.co contains a (small) number of interesting ones. Here is how to access them using NeoCSV. (NeoCSVReader on: 'https://numeracy.co/standard-library/us-population/states.csv' asUrl retrieveContents readStream) upToEnd. or ZnClient new url: 'https://numeracy.co/standard-library/us-population/states.csv'; contentReader: [ :entity | (NeoCSVReader on: entity readStream) upToEnd ]; get. Of course, they don't use UTF-8 and don't advertise it, so on some datasets you need to do something extra. (NeoCSVReader on: (ZnDefaultCharacterEncoder value: ZnCharacterEncoder latin1 during: [ 'https://numeracy.co/standard-library/us-population/cities.csv' asUrl retrieveContents ]) readStream) upToEnd. (Warning: this last example is quite large, 500K records). Sven

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