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Re: [Pharo-users] How to query a JSON
by Sven Van Caekenberghe May 24, 2017

May 24, 2017

Marc, > On 24 May 2017, at 16:20, Marc Hanisch via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > Hello, > > is there a way to query a JSON with a path (JSONPath or some custom format)? > > I want to query an API and collect the JSON responses, which I need to iterate over to extract some data. Modelling the JSON structure as classes would be too much overhead, I think. I just want to collect some values... > > Thanks in advance, > Marc Normally, when you use the NeoJSON package and you don't do any mapping, you get Dictionaries and Arrays back. There is however also something called NeoJSONObject, a Dictionary subclass that has some API that is quite fluent and that does include path style access. To get started, use NeoJSONObject class>>#fromString: as parser. Here is the class comment: === I am NeoJSONObject. I am a Dictionary. I behave more like a JavaScript object. I return nil for missing keys. I allow any property to be read or set by using a normal accessor message. The following are equivalent: self foo. self at: #foo. As are the following self foo: 1. self at: #foo put: 1. Except that in the first case, self is returned. I can optionally be used by NeoJSONReader as mapClass (see #mapClass:). For output, I act just like my superclass (it is thus not necessary to do any conversions). Example: NeoJSONObject fromString: '{"foo":1,"bar":-2}'. NeoJSONObject new foo: 1; bar: -2. { #x -> 100. #y -> 200 } as: NeoJSONObject. (NeoJSONObject new data: (NeoJSONObject new id: #sensor1; value: 37.5)) asString. I use JSON as my printed representation. To convert me to JSON, use #printString or #asString. Additionally, I support path access for nested instances of me, using #atPath: and #atPath:put: The first is special because it returns nil as soon as a key is missing. The second is special because it creates extra levels (instances of me) as needed to follow the path of keys. NeoJSONObject new atPath: #(one two three) put: 42; yourself. NeoJSONObject new atPath: #(one two three) put: 42; atPath: #(one two three). === HTH, Sven

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How to query a JSON
by Marc Hanisch May 24, 2017

May 24, 2017

Hello, is there a way to query a JSON with a path (JSONPath or some custom format)? I want to query an API and collect the JSON responses, which I need to iterate over to extract some data. Modelling the JSON structure as classes would be too much overhead, I think. I just want to collect some values... Thanks in advance, Marc

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Re: [Pharo-users] How to add a contextual menu to a Spec
by Hartmut Krasemann May 24, 2017

May 24, 2017

Hi Sven, > Subject: [Pharo-users] How to add a contextual menu to a Spec > ListModel > Message-ID: <5BBF6BCB-2C95-4948-932C-D14F71C0B3D9(a)stfx.eu> > Content-Type: text/plain; charset=us-ascii > > Hi, > > I am struggle a bit in find the right way to add a contextual menu to a Spec ListModel. > > Consider: > > ListModel new > title: 'List Example'; > items: Smalltalk allClasses; > openWithSpec. > > I would like to add a right-click contextual menu to the list, with for example a 'Browse' action. I can't find such a simple example. I know there is a #menu: option, I can see some usages in my image, but they seem to do different things. What would be the recommended approach ? > > ListModel new > title: 'List Example'; > items: Smalltalk allClasses; > "menu: [ ];" > openWithSpec. > > Thanks, > > Sven > > PS: Probably the reference to the #selectedItem of the ListModel for the action is hard to write in a one-liner, that is not a requirement. > I found the following to work for ListModel and MultiColumnList, e.g to add #inspect as a list item pop up : menu: [ :m | self listMenu: m ] . listMenu: m | item | item := m add: #inspect target: self selectedItem selector: #inspect . item enablementSelector: [ self selectedItem isNotNil ] . ^m Hartmut -- signatur Hartmut Krasemann KÃ¶nigsberger Str. 41 c D 22869 Schenefeld Tel. 040.8307097 Mobil 0171.6451283 Krasemann(a)acm.org

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Any implementation of GPG for Pharo?
by Casimiro de Almeida Barreto - GMAIL May 23, 2017

May 23, 2017

Good morning, Is there any working implementation of PGP/GNUPG functionality in Pharo. There are some tools for squeak but IÂ´m not sure if they are maintained. Also need password parsing (both Windows and Linux environments). Best regards, Casimiro Barreto

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SquareBracket Associate github org ownership
by Serge Stinckwich May 23, 2017

May 23, 2017

Dear all, who is in charge of SquareBracket Associate github org ? I can't commit anymore on : https://github.com/SquareBracketAssociates/NumericalMethods Maybe I was owner before and no more now. Can someone can change my ownership ? Thank you. Regards, -- Serge Stinckwich UCN & UMI UMMISCO 209 (IRD/UPMC) Every DSL ends up being Smalltalk http://www.doesnotunderstand.org/

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Anyone knows how to get the list of available archetype with Pillar?
by Alexandre Bergel May 23, 2017

May 23, 2017

Hello! Still on my quest to use Pillar :-) What are the different Archetypes available for Pillar? It would be great to have: ./pillar archetype to obtain the list of available archetype :-) Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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Noncontiguous selections in FastTable?
by HernÃ¡n Morales Durand May 21, 2017

May 21, 2017

Any way to get noncontiguous selection working in FTTableMorph in Pharo 5? In Windows I cannot get two non-consecutive items to be selected. Ctrl key causes menu to appear. Shift key only allows consecutive items. See for example this FastTable: | ds | ds := FTTreeDataSource roots: (1 to: 1000) children: [ :data :item | item depth even ifTrue: [ 1 to: data / 2 ] ifFalse: [ 1 to: data - 1 ] ]. FTTableMorph new extent: 200 @ 400; dataSource: ds; allowDeselection; beMultipleSelection; secondarySelectionColor: Color tan; openInWindow. Any help will be appreciated. Cheers, HernÃ¡n

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Problems loading XML System ( was Re: [Zinc] ZnInvalidUTF8: Illegal leading byte for utf-8 encoding)
by PBKResearch May 21, 2017

May 21, 2017

Monty As an update, I have rebuilt from the Moose 6.0 download. The version of XML-Parser in that was dated 18 July 2016 (configuration monty.233), so I installed versions of XML-Parser-HTML and XML-Parser-StAX contemporary with that. (The respective configurations are monty.48 and monty.39). With these versions all my previous XMLHTMLParser operations work as before, and I have been able to use the StAX parser in a simple way. So I can start exploring as I intended. I have made repeated attempts to update this rebuilt image to more recent versions of the HTML and StAX parsers, and every time I run into the same error reported below. I started from the latest version and worked backwards, but gave up quickly; it takes about 6 minutes on my machine to load and compile a version, and it soon gets tedious. If I feel more enthusiastic tomorrow, I might start working forwards from my current versions. Anyway, I now have a working system with the StaX and HTML parsers, so I can continue to explore. Best wishes Peter Kenny -----Original Message----- From: Pharo-users [mailto:pharo-users-bounces@lists.pharo.org] On Behalf Of PBKResearch Sent: 15 May 2017 20:44 To: 'Any question about pharo is welcome' <pharo-users(a)lists.pharo.org> Subject: Re: [Pharo-users] [Zinc] ZnInvalidUTF8: Illegal leading byte for utf-8 encoding Monty I have just started trying to use the StAX parsers, and I have found that the update has introduced a problem, which means that XMLHTMLParser no longer works on examples I have used before. I updated to ConfigurationOfXMLParser(monty.302), which is the latest version on the smalltalkhub repository, and then used the load version in the class comment, which loads the stable default. Similarly, I loaded ConfigurationOfXMLParserHTML(monty.62) and ConfigurationOfXMLParserStAX(monty.51), again using stable and default. When I try to run the XMLHTMLParser example I quoted below, I get an error message 'MessageNotunderstood: receiver of "critical:" is nil'. The same message comes up with anything else I try with XMLHTMLParser or with StAXHTMLParser. I am not really up to using the debugger on someone else's code, but the one thing I can see is that the problem lies in XMLKeyValueCache>>critical:, which has the code: ^ self mutex critical: aBlock The problem being that mutex is nil. In my enthusiasm, I saved the updated image with the same name as the old image, which is now therefore overwritten. If I cannot solve this problem, my only way out is to rebuild my image from the Moose 6.0 download. Any suggestions gratefully received. Thanks in advance Peter Kenny -----Original Message----- From: Pharo-users [mailto:pharo-users-bounces@lists.pharo.org] On Behalf Of PBKResearch Sent: 15 May 2017 19:16 To: 'Any question about pharo is welcome' <pharo-users(a)lists.pharo.org> Subject: Re: [Pharo-users] [Zinc] ZnInvalidUTF8: Illegal leading byte for utf-8 encoding Monty Many thanks for this. My original purpose was just to answer Paul deBruicker's query, namely to parse an html file and stop reading at the end of the <head> section. I solved this by trial and error using the code shown below ( which actually stops at the opening tag of the body). This was not my problem at all, but Paul's; I just tackled it for fun. However, you note has prompted me to update my version of the whole XML system - I was using the version I downloaded with Moose 6.0, which was dated August 2016. I am looking at the StAX parsers as a possible way of simplifying what I currently do, which involves downloading an entire web page as a DOM and then manipulating it with XPath to extract the bits I am interested in. I may be able to use StAX to do some of the selection and manipulation as I am reading. It's all a new topic to me, so I foresee a lot of experimentation. It all helps to keep the grey matter active. Thanks again Peter Kenny -----Original Message----- From: Pharo-users [mailto:pharo-users-bounces@lists.pharo.org] On Behalf Of monty Sent: 15 May 2017 12:15 To: pharo-users(a)lists.pharo.org Subject: Re: [Pharo-users] [Zinc] ZnInvalidUTF8: Illegal leading byte for utf-8 encoding For that kind of incremental parsing, you could also use XMLParserStAX, a pull-parser that parses a document as a stream of event objects you control with #next, #peek, and #atEnd. It also supports pull-DOM parsing with messages like #nextNode, #nextElement, and #nextElementNamed:, which return the next event object(s) as DOM subtrees (searchable with XPath). See the StAXParser class comment for an example. (The StAXHTMLParser class requires XMLParserHTML be installed to work.)

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SmalltalkImage current vm canHandleShiftPressed giving false.
by phil＠highoctane.be May 20, 2017

May 20, 2017

I was looking in the code of GTSpotter and noticed that we have got: SmalltalkImage current vm canHandleShiftPressed in there. I wanted to see the result because of GTSpotter using that for providing hints. And on Windows, the returned value is false. Which is weird and annoying. Is this normal behavior? Phil

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Need help with Pillar
by Alexandre Bergel May 19, 2017

May 19, 2017

Hi! I have installed Pillar on MacOSX using: curl https://raw.githubusercontent.com/pillar-markup/pillar/master/download.sh | bash I had to copy PharoV50.sources in the folder pharo-vm/ apparently. Getting the archetype book gives me an error: -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= /tmp/pillar> ./pillar archetype book ConnectionTimedOut: Data receive timed out. [ ConnectionTimedOut signal: 'Data receive timed out.' ] in Socket>>waitForDataFor: in Block: [ ConnectionTimedOut signal: 'Data receive timed o...etc... Socket>>waitForDataFor:ifClosed:ifTimedOut: Socket>>waitForDataFor: ZdcSecureSocketStream(ZdcAbstractSocketStream)>>socketWaitForData [ self socketWaitForData ] in ZdcSecureSocketStream(ZdcSimpleSocketStream)>>fillReadBuffer in Block: [ self socketWaitForData ] BlockClosure>>on:do: ZdcSecureSocketStream(ZdcSimpleSocketStream)>>fillReadBuffer ZdcSecureSocketStream(ZdcAbstractSocketStream)>>next ZnLineReader>>processNext ZnLineReader>>nextLine ZnStatusLine>>readFrom: ZnStatusLine class>>readFrom: ZnResponse>>readHeaderFrom: ZnResponse(ZnMessage)>>readStreamingFrom: -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Which website is it trying to get access to? Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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