May 2015 - Pharo-users - lists.pharo.org

XMLParser GTInspector extensions
by Ben Coman May 4, 2015

May 4, 2015

I happened to need to use and XML Parser for the first time and found inspecting the structure awkward, so I added some GTInspector extensions to XML-Parser. This is uploaded as XML-Parser-BenComan.304 to http://smalltalkhub.com/#!/~PharoExtras/XMLParser. Could someone who uses XML regularly check if these are reasonable? Now should these methods be packaged separately somehow, since they are likely not of interest to other Smalltalk flavours? btw I gave them a protocol of "GT-Extensions" - but I also considered "moldable-tools" and "tools-extensions". If there a preference? This will likely be a common occurrence across the community, so we should try for a consistent convention across the community for such extensions. btw2, I notice that #gtDisplayOn: implementors are fairly evenly split between [GT-InspectorExtensions-Core] and [GT-SpotterExtensions-Core]. Are they really separated like this in their use? cheers -ben

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GTInspector: editable custom presentation?
by Johan Fabry May 3, 2015

May 3, 2015

Hi all, Iâm trying to make a custom GT Inspector presentation for a variable store (i.e. something like a dictionary). The code I have right now shows me the data I want: gtInspectorDetailsIn: composite <gtInspectorPresentationOrder: 0> composite table title: 'Details'; display: [ self allVariables ]; column: 'Variable' evaluated: #key; column: 'Value' evaluated: #value; send: #value But, what I would like to do is to take advantage of the edit ability of the inspector to change what is displayed in the Value column and save this directly to the store. I have the method for that (setVariable: withValue: ) but I cannot find how to tell the GTInspector to add the edit functionality and to call this method when an edit action is made. How should I do this? This is Pharo 4.0 BTW. PS: I was very impressed with the customizability of the GT inspector â¦ until I wanted to make my own presentation and I found almost no documentation on how to do it. For such a major feature I thought there would be HOWTOâs easily found online but there are none. Not in the GT toolkit page http://gt.moosetechnology.org/ and the pages it points to, nor in the various blogs that talk about the GT Inspector. I did find a starting point on how to do it, but no clear information. Did I overlook something? If so, I think it would be better that this info is more easily found. ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD lab - Computer Science Department (DCC) - University of Chile

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Small workshop/hackathon today and tomorrow about Pharo and Agile Visualization.
by Offray Vladimir Luna CÃ¡rdenas May 3, 2015

May 3, 2015

Hi all, Today and tomorrow, a small group of persons will be doing a workshop/hackathon about Pharo and Agile Visualization at our local hackerspace. Details on the event are on: http://hackbo.co/hackboweb/eventos/evento/375 I will be sharing teaching materials, first impressions and questions with you about the experience, while is happening and after that. Thanks, Offray

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Re: [Pharo-users] Can we have NeoCSV, and NeoJSON included in the base image?
by Andy Burnett May 3, 2015

May 3, 2015

Thanks Ben, and Cyril. I liked Mariano's approach, and I will play with that. However, I think the suggestion about using Moose may be exactly what I need. I have been playing with Mathematica a lot lately, and I really appreciated the fact that you got the kitchen sink with it. What I was wondering - taking Cyril's comment into account - is whether there is an argument for producing a kitchen sink image which contains the stable versions of all the key tools. Obviously, that requires some discussion/analysis of what the key tools are, but it shouldn't be impossible to do. In the meantime, I am off to play with Moose :-) Cheers Andy

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Reading rows in a database table (select * from ...)
by Sanjay Minni May 3, 2015

May 3, 2015

Hi what is the usual practice in reading in rows from a database table - is a loop usually written to read next n rows / till the end - does the arriving data have to be processed like a dictionary into a collection where each object corresponds to a row and each key/value into the objects methods corresponding to columns e.g in NBSQLite3 interface test I find the command below used, looks like I need to process row by row rs := db execute: 'select * from x'. row := rs next. ... := row at: <key> ... rs close (I will be using Sqlite, Postgresv2 and ODBC drivers ... 3 separate projects) regards Sanjay ----- --- Regards, Sanjay -- View this message in context: http://forum.world.st/Reading-rows-in-a-database-table-select-from-tp482300… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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accessing themed colors from morph
by Peter UhnÃ¡k May 3, 2015

May 3, 2015

Hi, how is set the background color of a morph? I could access directly "Smalltalk ui theme backgroundColor" from within the Morph, but I don't see anywhere that something is using themed colors this way. So I assume there is some other way; what am I missing? Note that I don't want to use the color for background of the morph but I need to make a decision based on the color in the morph. Thanks, Peter

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Use antlr ".g4" grammars-v4 files to generate parser in pharo?
by Julien Delplanque May 3, 2015

May 3, 2015

Hi everyone, I saw on this repository https://github.com/antlr/grammars-v4 that there are a lot of grammar defined. I wonder if someone already managed to generate a parser in pharo (using any framework you want) from a ".g4" file? I also saw there is the grammar of ".g4" files (https://github.com/antlr/grammars-v4/tree/master/antlr4) in the repository so I guess it would be possible to create a parser that generate parsers from ".g4" files. Regards, Julien

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Can we have NeoCSV, and NeoJSON included in the base image?
by Andy Burnett May 2, 2015

May 2, 2015

I would find it really useful to have some more classes included in the base image. The Neo system would be particularly useful, but I would also find an XML reader valuable. What is the process for deciding which classes get included by default? Cheers Andy

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builder pattern
by Peter UhnÃ¡k May 2, 2015

May 2, 2015

Is there some common / best way for coding builders? Two ways that I see are: a) using a block - I've seen this in menus and some other, however in my case I need to add an extra parameter as label "variant with two params" aForm addDropList: 'Type' with: [ :dropList | dropList items: #(input #output); " ... ". ]. "variant with one method param and value holder" aForm addDropList: [ :labelHolder :dropList | labelHolder value: 'Type'. dropList items: #(input #output); " ... ". ]. b) using return value - no blocks, no extra code (aForm addDropList: 'Type') items: #(input #output); " ... ". I would use the second variant as it looks much cleaner, however considering how widespread is the use of the first variant I think I must be missing something. Thanks, Peter

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ZnEasy / UTF-8
by volkert May 2, 2015

May 2, 2015

Dear all, i am trying to get a JSON Document with ZnEasy. The Document is UTF-8 encoded. (ZnEasy get: 'http://<removed>/api/atm/801813') entity string. Any hints? Volkert

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