March 2017 - Pharo-users - lists.pharo.org

Re: [Pharo-users] [Modeling with Pharo] How to model a simple human interaction.

by stepharong

Hi sergio > Hey all.. > > I got my first paying gig that i am able to use pharo with, and i am on > the last leg before calling it complete. super! I'm really happy for you. just this makes pharo and all our effort worth it. > Hereâs what I need to do.. > > This application accepts SMS text messages. It allows the user to send > images via MMS and place an order to a print house for those images.. > it then compiles the order, and >submits it to the order processing > system and makes the prints. > > The last thing I need to zero in on is handling the interaction. Believe > it or not, I have never modeled such an interaction. The interaction > goes: > > - user sends images{s) > - bot says âthanksâ and asks if there are more > - user types âdoneâ or sends more > - on âdoneâ bot asks for print size > - bot says âthanksâ and the interaction is done. order is processed. > > my first inclination is to use a state machine, progressing through > order each time the user enters âdoneâ.. > > does this sound reasonable, Yes it seems. After you could also have a queue of command. > or is there a better model/design pattern for this interaction? You can look at the state pattern. It is good for implementing state machine. Stef > > Thanks! > > > ---- > peace, > sergio > photographer, journalist, visionary > > Public Key: http://bit.ly/29z9fG0 > #BitMessage BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV > http://www.Village-Buzz.com > http://www.ThoseOptimizeGuys.com > http://www.coffee-black.com > http://www.painlessfrugality.com > http://www.twitter.com/sergio_101 > http://www.facebook.com/sergio101 -- Using Opera's mail client: http://www.opera.com/mail/

March 4, 2017

Re: [Pharo-users] [Pharo-dev] [ANN] XML Metadata Interchange (XMI) for Pharo

by stepharong

On Thu, 02 Mar 2017 10:02:04 +0100, Peter Uhnak <i.uhnak(a)gmail.com> wrote: > We spoke briefly on Tuesday. I need to take a look (also at his EMF > generator) and see how the tools could benefit from each other. I think > it could simplify some of my code or streamline the use of it. super cool :) > > (Also I have about a billion code generators at the moment with small > differences... so I will merge that at some point too...) > > Peter > > > On Wed, Mar 01, 2017 at 10:29:38PM +0100, stepharong wrote: >> Hi torsten >> >> do you know the work of peter to generate classes out of XMI and >> populate models? >> Because it complements your approach. >> >> stef >> >> >> On Wed, 01 Mar 2017 22:26:05 +0100, Torsten Bergmann >> <astares(a)gmx.de> wrote: >> >> >Hi, >> >if you work with UML, modeling tools or model data exchange often >> >you might know XMI - >> >the XML Metadata Interchange format. >> >I wrote a little package that makes it easier to work and browse >> >data based on this >> >format within Pharo. >> >For instance you can open an XMI object either from a given stream >> >or URL: >> > (XMIFile fromURL: 'http://www.omg.org/spec/UML/20131001/UML.xmi') >> >inspect >> >You can also open a file >> > XMIFile importFile >> >Code is available on https://github.com/astares/Pharo-XMI >> >The package includes a small GT extension allowing you to walk and >> >dive through the XMI >> >structure (see attached screenshot) and as the XMI nodes are >> >unified it is easy to >> >code some code generators or transformers in Pharo afterwards. >> >For instance I used this package for a simple Pharo code generator >> >based on Eclipse EMF models/diagrams. >> >Within the code you will find some examples to browse through >> >prominent XMI models like: >> >- UML Spec >> > => (XMIFile fromURL: >> >'http://www.omg.org/spec/UML/20131001/UML.xmi') inspect >> >- VISUAL PARADIGM >> > => (XMIFile fromURL: >> 'https://raw.githubusercontent.com/staruml/XMI/master/unittest-files/VP_XMI2…') >> >inspect >> >- ENTERPRISE ARCHITECT >> > => (XMIFile fromURL: >> 'https://raw.githubusercontent.com/staruml/XMI/master/unittest-files/EA_XMI2…') >> >inspect >> >- ARCHIMATE >> > => (XMIFile fromURL: >> >'https://www.reflektis.com/repos/archimate-3.0.xmi) inspect >> >Once the inspector opens you have to select the "rootNode" and >> >then the "Hierarchy" tab. >> >In Pharo 6 you can load "XMI" right from catalog. Hope the package >> >is useful for others too. >> >Bye >> >T. >> >> >> -- >> Using Opera's mail client: http://www.opera.com/mail/ >> > -- Using Opera's mail client: http://www.opera.com/mail/

March 4, 2017

Re: [Pharo-users] [Pharo-dev] [ANN] Regex Tester Tool for Pharo

by stepharong

>>>> And I think that his remark makes sense. I was wondering if we should >>>> not ressurect >>>> the RePlugin to make sure that users can use perlish regexp and do >>>> not feel that our world is strange. >>> >>> +1 >>> >> >> +23 >> >> I've been using regexes casually for years and yet every time I use >> them in Pharo I have to open the help and end up using PetitParser or >> parsing it manually anywayâ¦ >> > Which are good reasons not to improve regex support ;) Norbert I (would love to have a full version in Pharo - you know me on that). Now I do not know if we can change the regexp package to actually accept Perl or other more standard syntax and there is no maintainer of the regexp package. And it will be slower (of course we have to maintain a binding to a C-libraries). So you see I'm getting wiser with age :) Now if you tell me that you want to get the regexp package to accept perlish expressions - I sign :) Stef

March 4, 2017

Re: [Pharo-users] Arduino

by stepharong

> Hi Olivier, You probably have a few of these references, but since you > don't mention which you have, > I'll list what I found from a quick sweep... > > I read [1] that the Firmata protocol "uses the MIDI message format." > > Pharo seems to have removed the MIDI related code after it forked from > Squeak. > Squeak still has it. Download 5.1 from http://squeak.org/downloads/ > Then go World Menu > Open > Method finder > Type midi <Enter> > and browse the code. Pharo and Squeak share a VM, so this should be > compatible with Pharo. It is in the PharoSound package Olivier if you have a look let me know. Thanks for the list ben! > You'll see a few of the primitives located in classes SimpleMIDIPort > and MidiPrimTester > in the System-SerialPort package. > > Note, some of the primitives that show no references/implementors in > the right-side pane, > need to be right-clicked to choose Senders to see the implementation, > since the method name is different to the pragma name. > > Then there is http://www.squeaksource.com/Arduino.html > which may or may not need to MIDI code from Squeak. > This code is circa 2013 so the (optional) FFI parts may need updating > for Pharo UFFI. > > There is http://smalltalkhub.com/#!/~juanmanuelvallejos/gcodewithfirmata > "It is an implementation of the protocol firmata in smalltalk. And > also it contains a parsing to G code for cnc machines." > > There is http://smalltalkhub.com/#!/~Citilab/Snap4Arduino/ > circa 2014. > > There is http://smalltalkhub.com/#!/~JohanBriglia/ArduinoIO > circa 2016, but probably not what you want being a "Simple program to > connect easily pharo and the arduino via serial port Uses a Python > program and terminal commands via CommandShell" > > There is http://smalltalkhub.com/#!/~JLaval/Arduino > circa 2016, and the commits show PhratchArduino-janniklaval.9 > Phratch is available here http://www.phratch.com/ > Its based on Pharo 4, but seems the most current. > > Reading here... > https://groups.google.com/forum/#!topic/phratch/C6IYZ-TDt50 > perhaps the most efficient path would be buying Jannik an Arduino to > test on > (if indeed Phratch uses the firmata protocol as you require). > > > cheers -ben > > > > > > > > > [1] https://github.com/firmata/protocol/blob/master/protocol.md > -- Using Opera's mail client: http://www.opera.com/mail/

March 4, 2017

[Modeling with Pharo] How to model a simple human interaction.

by sergio ruiz

Hey all.. I got my first paying gig that i am able to use pharo with, and i am on the last leg before calling it complete. Hereâs what I need to do.. This application accepts SMS text messages. It allows the user to send images via MMS and place an order to a print house for those images.. Â it then compiles the order, and submits it to the order processing system and makes the prints. The last thing I need to zero in on is handling the interaction. Believe it or not, I have never modeled such an interaction. The interaction goes: - user sends images{s) - bot says âthanksâ and asks if there are more - user types âdoneâ or sends more - on âdoneâ bot asks for print size - bot says âthanksâ and the interaction is done. order is processed. my first inclination is to use a state machine, progressing through order each time the user enters âdoneâ..Â does this sound reasonable, or is there a better model/design pattern for this interaction? Thanks! ---- peace, sergio photographer, journalist, visionary Public Key:Â http://bit.ly/29z9fG0 #BitMessageÂ BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV http://www.Village-Buzz.com http://www.ThoseOptimizeGuys.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

March 4, 2017

Re: [Pharo-users] Voyage and Date

by Norbert Hartl

I think sticking to a date string is the safest thing to do. Especially if you use iso yyyy-mm-dd because the database indexes are predix based and are able to sort and build ranges. So you don't loose much. The problem is regarding the conceptually incompatible offset and #asDate. #asDate just cuts off minutes hours and seconds from am DateAndTime. So if the offset has a startDate of yesterday asDate will give a date yesterday. In my code I either use "asLocal asDate" or date as string. No better solution so far > Am 04.03.2017 um 12:15 schrieb Sabine Manaa <manaa.sabine(a)gmail.com>: > > Hi Hilaire, > > it is interesting to see your posts and having similar topics as me when starting to use voyage. > I ended up with saving ZTimestamps. But I will think about storing strings too, because this is more readable when having direct look into mongo. > There was a discussion in slack a few days ago (February, 21st) about saving Dates in voyage. > > Regards > Sabine > > > > 2017-03-04 11:21 GMT+01:00 HilaireFernandes [via Smalltalk] <[hidden email]>: >> Concerning this problem, one option I found is to get far away of the >> Voyage/Mongo Date/DateAndTime representation/conversion and stick to >> string, not really efficience, but well... >> >> mongoBirthday >> <mongoDescription> >> ^ VOToOneDescription new >> attributeName: 'birthday'; >> accessor: (MAPluggableAccessor >> read: [:person | person birthday ifNotNil: [person birthday yyyymmdd]] >> write: [:person :string |string ifNotNil: [person birthday: string >> asDate]]); >> yourself >> >> >> Le 03/03/2017 Ã 21:12, Hilaire a Ã©crit : >> > Not sure it is related to this: >> > http://forum.world.st/Possible-bug-with-Voyage-Mongo-date-tt4735597.html >> >> -- >> Dr. Geo >> http://drgeo.eu >> >> >> http://drgeo.eu >> >> >> If you reply to this email, your message will be added to the discussion below: >> http://forum.world.st/Voyage-and-Date-tp4937235p4937262.html >> To start a new topic under Pharo Smalltalk Users, email [hidden email] >> To unsubscribe from Pharo Smalltalk Users, click here. >> NAML > > > View this message in context: Re: Voyage and Date > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

March 4, 2017

Re: [Pharo-users] why is concat of Symbols a string?

by ClÃ©ment Bera

Hi, All symbols are interned in the Symbol table. If one does (#foo , #bar , #baz) and each returned value would be a symbol, then both #foobar and #foobarbaz would be registered in the symbol table. I would guess that's why the concatenated value is a string and not a symbol, to avoid registering many unused symbols. But maybe I am wrong. If for your use case you need to concatenate symbols and get a symbol out of it, you can define a new method in Symbol to do what you want. For example: Symbol >> ,, arg ^ (self , arg) asSymbol Then #foo ,, #bar Answers directly the symbol #foobar. Best, On Sat, Mar 4, 2017 at 11:36 AM, Peter Uhnak <i.uhnak(a)gmail.com> wrote: > Hi, > > why is the concatenation of symbols a string? > > e.g. #desc, #Name -> 'descName' > > this means that I have to always wrap in parentheses and recast, or stream > it, e.g. > > (#desc, #Name) asSymbol -> #descName > Symbol streamContents: [ :s | s << #desc; << #Name ] -> #descName > > both of which introduce extraneous syntactical clutter. > The technical reason seems to be ByteSymbol>>#species returning > ByteString, but I have no idea why it has to be this complicated. > > Thanks, > Peter > >

March 4, 2017

Re: [Pharo-users] Voyage: VOToOneDescription or VOMongoToOneDescription

by Sabine Manaa

Hi Hilaire, https://github.com/pharo-nosql/voyage/issues/56 The classes have been renamed. VOToOneDescription is new VOMongoToOneDescription is old Regards Sabine 2017-03-03 11:08 GMT+01:00 HilaireFernandes [via Smalltalk] < ml-node+s1294792n4936998h33(a)n4.nabble.com>: > Hi, > > VOToOneDescription or VOMongoToOneDescription, that is the question? > > I am confuse because: > > This one works: > > mongoStartDate > <mongoDescription> > ^ VOToOneDescription new > attributeName: 'startDate'; > accessor: (MAPluggableAccessor > read: [:loan | loan startDate] > write: [:loan :dateAndTime | loan startDate: dateAndTime asDate]); > yourself > > > > This one breaks: > > mongoStartDate > <mongoDescription> > ^ VOMongoToOneDescription new > attributeName: 'startDate'; > accessor: (MAPluggableAccessor > read: [:loan | loan startDate] > write: [:loan :dateAndTime | loan startDate: dateAndTime asDate]); > yourself > > > However, the tutorial on Entreprise Pharo book only mention the later one. > > So what the differences? > > Thanks > > Hilaire > > -- > Dr. Geo > http://drgeo.eu > > > http://drgeo.eu > > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > http://forum.world.st/Voyage-VOToOneDescription-or- > VOMongoToOneDescription-tp4936998.html > To start a new topic under Pharo Smalltalk Users, email > ml-node+s1294792n1310670h65(a)n4.nabble.com > To unsubscribe from Pharo Smalltalk Users, click here > <http://forum.world.st/template/NamlServlet.jtp?macro=unsubscribe_by_code&no…> > . > NAML > <http://forum.world.st/template/NamlServlet.jtp?macro=macro_viewer&id=instan…> > -- View this message in context: http://forum.world.st/Voyage-VOToOneDescription-or-VOMongoToOneDescription-… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

March 4, 2017

Re: [Pharo-users] Voyage and duplicated entry

by Sabine Manaa

Hi Hilaire, did you do VORepository current reset in the meantime? If yes, this could be the reason. If you do this, the smalltalk cache of the objects is reset and the next time the objects are loaded again from mongo and then they are no longer "the same" objects within smalltalk. I had a hard time to learn this. Regards Sabine 2017-03-04 11:53 GMT+01:00 HilaireFernandes [via Smalltalk] < ml-node+s1294792n4937268h3(a)n4.nabble.com>: > Hi, > > I have strange behavior when saving object: > when I edit then save, I got a duplicated entry in the repository > collection. > > Some description about the object: > This object class is part of a hierarchy class, where the top is defined > as voyage root. > In this object, hash and = are redefined. > > Any pointer? > > Hilaire > > -- > Dr. Geo > http://drgeo.eu > > > http://drgeo.eu > > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > http://forum.world.st/Voyage-and-duplicated-entry-tp4937268.html > To start a new topic under Pharo Smalltalk Users, email > ml-node+s1294792n1310670h65(a)n4.nabble.com > To unsubscribe from Pharo Smalltalk Users, click here > <http://forum.world.st/template/NamlServlet.jtp?macro=unsubscribe_by_code&no…> > . > NAML > <http://forum.world.st/template/NamlServlet.jtp?macro=macro_viewer&id=instan…> > -- View this message in context: http://forum.world.st/Voyage-and-duplicated-entry-tp4937268p4937272.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

March 4, 2017

Re: [Pharo-users] Voyage and Date

by Sabine Manaa

Hi Hilaire, it is interesting to see your posts and having similar topics as me when starting to use voyage. I ended up with saving ZTimestamps. But I will think about storing strings too, because this is more readable when having direct look into mongo. There was a discussion in slack a few days ago (February, 21st) about saving Dates in voyage. Regards Sabine 2017-03-04 11:21 GMT+01:00 HilaireFernandes [via Smalltalk] < ml-node+s1294792n4937262h17(a)n4.nabble.com>: > Concerning this problem, one option I found is to get far away of the > Voyage/Mongo Date/DateAndTime representation/conversion and stick to > string, not really efficience, but well... > > mongoBirthday > <mongoDescription> > ^ VOToOneDescription new > attributeName: 'birthday'; > accessor: (MAPluggableAccessor > read: [:person | person birthday ifNotNil: [person > birthday yyyymmdd]] > write: [:person :string |string ifNotNil: [person > birthday: string > asDate]]); > yourself > > > Le 03/03/2017 Ã 21:12, Hilaire a Ã©crit : > > Not sure it is related to this: > > http://forum.world.st/Possible-bug-with-Voyage-Mongo-date-tt4735597.html > > -- > Dr. Geo > http://drgeo.eu > > > http://drgeo.eu > > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > http://forum.world.st/Voyage-and-Date-tp4937235p4937262.html > To start a new topic under Pharo Smalltalk Users, email > ml-node+s1294792n1310670h65(a)n4.nabble.com > To unsubscribe from Pharo Smalltalk Users, click here > <http://forum.world.st/template/NamlServlet.jtp?macro=unsubscribe_by_code&no…> > . > NAML > <http://forum.world.st/template/NamlServlet.jtp?macro=macro_viewer&id=instan…> > -- View this message in context: http://forum.world.st/Voyage-and-Date-tp4937235p4937269.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

March 4, 2017