August 2017 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] Using Orca for a modern 'sexy' Smalltalk User Interface

by Frank-B

@Stephan Granted and agreed! But that does not explain why it seems that nobody has really used this obviously brilliant Orca approach! In my view, this Orca approach seems by far 'better' in many respects than some pseudo-solutions that expect us to program in the browser (= just absurd) and which neglect the gigantic advantages of our Smalltalk IDEs over the JavaScript world. Any Smalltalker who has ever tried to develop a bigger piece of JavsScript code (like I did) must have been disgusted by the stone-age status of the available tools and should welcome the availability to develop client-server solution entirely in Smalltalk. And today, with the availability of WebSockets, there should even be far better ways of having an Orca-based client communicate with a Smalltalk driven server on a message-passing level. It seems that WebSockets have not been used in Orca in 2011 and before, but it should not be problem to add them. Further, I see TIRADE by GÃ¶ran Krampe http://goran.krampe.se/category/tirade/ as another useful addition. But most importantly, Orca should be the basis for a much better alternative to this (in my view) insane, ugly and very slow Seaside. Orca is the perfect tool to create a modern and entirely browser-based user interface with ONE single source code for browser AND desktop based Smalltalk driven applications. This would overcome our (Smalltalk in general) greatest deficiency and that has always been the user-interface, which is the by far most decisive success factor for every application software today. Look at the *Smalltalk UI status*, which for me is still nothing but a *tragedy*: Desk-top only UI definitions exist in *VA and Dolphin* where Dolphin is at least close to what most users consider and expect as the standard and that is, if we like it or not, Windows. The same is true for VW where the *VisualWorks UI* is internally totally insane, undocumented, old-fashioned in many aspects, not multi-lingual at all (despite their claims), 'polling', itâs simply âkaputtâ from the very beginning. *Squeakâs UI* is out of any discussion and *Pharoâs UI* is somewhat more modern but miles away from what end-users expect and tolerate, not to mention what they would love as an application UI. Having separate UI code for the desk-top and the browser is a sick idea anyway and therefore NO Smalltalk today is really suitable for developing modern, end-user friendly, simply âsexyâ user interfaces. I have always been convinced that the total absence of a 'good UI' in Smalltalk for desk-top and browser has been *the major reason for Smalltalk's failure* to attract a large and prefessional (developers of wide-spread standard software) user-base, apart from the greed [Goldberg] and arrogance towards the UI and the absurd licensing conditions and price-wishes of the early managers not only at ParcPlace but also at their successors (some of their licencing is rather slavery). Shouldn't we finally change this sad situation? -- View this message in context: http://forum.world.st/Anybody-using-Orca-Smalltalk-to-JavaScript-tp4960519p… Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

Aug. 13, 2017

Re: [Pharo-dev] Anybody using Orca Smalltalk to JavaScript?

by stephan

On 12-08-17 22:24, Frank Berger Software wrote: > the available documentation on Orca looks brilliant and the source, > Hasso-Plattner-Institut in Potsdam, has an excellent reputation. It > looks all very professional. > > I am therefore most suprised that I cannot find any tracks of usage of > Orca, neither here, nor elsewhere on the net, and not even any serious > discussions. It was indeed a well-executed bachelor project from HPI, that was submitted for the ESUG21011 InnovationTechnologyAwards. It was released under MIT at the end of the project. HPI however, is a research institute and needs to be very careful about which projects it can afford to support indefinitely. https://github.com/bp2010h1 http://esug.org/wiki/pier/Conferences/2011/InnovationTechnologyAwards/Submi… https://groups.google.com/forum/#!topic/orcaproject/ Stephan

Aug. 13, 2017

Re: [Pharo-dev] [Vm-dev] vm crash when using rairedTo: with fractions

by Andrei Chis

On Fri, Aug 11, 2017 at 12:55 AM, Eliot Miranda <eliot.miranda(a)gmail.com> wrote: > > Hi Andrei, > > On Thu, Aug 10, 2017 at 3:02 AM, Andrei Chis <chisvasileandrei(a)gmail.com> > wrote: > >> >> Hi, >> >> I was executing this code '(2009/2000) ** (3958333/100000)' with the >> Pharo6.1 distribution and the vm crashed with she stack attached below. >> Tried it on both mac and windows 10. >> Seems that #raisedTo: has a special case for fractions that ends up >> calling #nthRoot: like '2009 nthRoot: 100000' leading to the crash. >> > > The plugin is now fixed; see VMMaker.oscog-eem.2262. I'll generate code > soon (am debugging something you're familiar with that takes several hours > to run and don't want to generate sources while it's running). But I'm > glad you've found a better way! This case creates 600k byte large integers > and takes forever to run :-) > Nice! Thanks for the fix. Cheers, Andrei > > >> Cheers, >> Andrei >> >> >> 0xaddeac M LargePositiveInteger(Integer)>quo: 0x314093e8: a(n) >> LargePositiveInteger >> 0xaddec8 M LargePositiveInteger(LargeInteger)>quo: 0x314093e8: a(n) >> LargePositiveInteger >> 0xaddee8 M LargePositiveInteger(Integer)>// 0x314093e8: a(n) >> LargePositiveInteger >> 0xaddf04 M LargePositiveInteger(LargeInteger)>// 0x314093e8: a(n) >> LargePositiveInteger >> 0xaddf34 I LargePositiveInteger(Integer)>nthRootTruncated: 0x30cc8350: >> a(n) LargePositiveInteger >> 0xaddf5c I LargePositiveInteger(Integer)>nthRootRounded: 0x30cc8350: >> a(n) LargePositiveInteger >> 0xaddf88 I SmallInteger(Integer)>nthRoot: 0xfb3=2009 >> 0xaddfb4 I Fraction>nthRoot: 0x4f9a940: a(n) Fraction >> 0xaddfd8 I Fraction(Number)>raisedTo: 0x4f9a940: a(n) Fraction >> 0xaddffc I Fraction(Number)>** 0x4f9a940: a(n) Fraction >> 0xade018 M UndefinedObject>DoIt 0x5fe5d00: a(n) UndefinedObject >> 0xade048 I OpalCompiler>evaluate 0x4f9a998: a(n) OpalCompiler >> 0xade074 I RubSmalltalkEditor>evaluate:andDo: 0x305e5878: a(n) >> RubSmalltalkEditor >> 0xade09c I RubSmalltalkEditor>highlightEvaluateAndDo: 0x305e5878: a(n) >> RubSmalltalkEditor >> 0xade0b8 M GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodeRenderer)>popupPrint >> 0x3062fdc8: a(n) GLMMorphicPharoScri >> enderer >> 0xade0d8 I MorphicAlarm(MessageSend)>value 0x4f9ab20: a(n) MorphicAlarm >> 0xade0f4 M MorphicAlarm>value: 0x4f9ab20: a(n) MorphicAlarm >> 0xade114 M WorldState>triggerAlarmsBefore: 0x71bb5e0: a(n) WorldState >> 0xade140 M WorldState>runLocalStepMethodsIn: 0x71bb5e0: a(n) WorldState >> 0xade164 M WorldState>runStepMethodsIn: 0x71bb5e0: a(n) WorldState >> 0xade180 M WorldMorph>runStepMethods 0x6ab7778: a(n) WorldMorph >> 0xade198 M WorldState>doOneCycleNowFor: 0x71bb5e0: a(n) WorldState >> 0xade1b4 M WorldState>doOneCycleFor: 0x71bb5e0: a(n) WorldState >> 0xade1d0 M WorldMorph>doOneCycle 0x6ab7778: a(n) WorldMorph >> 0xade1e8 M WorldMorph class>doOneCycle 0x6a9f960: a(n) WorldMorph class >> 0xade200 M [] in MorphicUIManager>spawnNewProcess 0x2cc88718: a(n) >> MorphicUIManager >> 0xade220 I [] in BlockClosure>newProcess 0x2f178150: a(n) BlockClosure >> >> > > > -- > _,,,^..^,,,_ > best, Eliot > >

Aug. 13, 2017

Re: [Pharo-dev] Is there a portable way to check if a string is a block?

by Eliot Miranda

Hi Mariano, _,,,^..^,,,_ (phone) > On Jul 24, 2017, at 9:21 AM, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: > > Hi guys, > > Is there a portable (that would work in GemStone too) and safe way to know if a String would be a block? > > I must support this kind of strings: > > 'singleString' -> false > 'multi string' -> false > ' [:a | 42]' -> true > ' '' '' [:a | 42]' -> true > '[:a | 42]' -> true > ' "a commet" [:a | 42]' -> true > ' WhateverClass someVeryBadHackishMethod. [:a | 42]' -> true > > I need to identify whether the string is a closure or not. And ideally, I don't want to do an #evaluate: because I don't want any left hand code to be executed. > I tried with #parse: why I am having problems. > > Any ideas? Not sure if you're still stuck but if you dive into evaluate: you'll be able to find the point at which it parses, and find out how to invoke the parser for an expression (a doit). evaluate: parses an expression so you want to check that the resulting parse tree is that of a return node whose expression is a literal block. You can also check the block's argument count. Once you've extracted the parser invocation you can wrap this in a suitable exception handler. Then you have your block parser. You still have to validate the parse tree and/or generated code before evaluating since someone could write malicious code within the block right? > > Thanks in advance > > -- > Mariano > http://marianopeck.wordpress.com

Aug. 13, 2017

Re: [Pharo-dev] Add JSONSchemas to NeoJSON

by henry

To be honest, I looked at Fuel, but it has changed: I can't find the FLDecoder. I had hoped such a framework could switch to JSon encoding, as the substitution framework is robust. I do not know if it's feasible. - HH On Sat, Aug 12, 2017 at 19:09, henry <henry(a)callistohouse.club> wrote: > I also need callbacks for substituation during encoding, SAX-like. I think custom mapping of NeoJSON does this, with clusters. But I am unsure. > > - HH > > On Sat, Aug 12, 2017 at 19:07, henry <henry(a)callistohouse.club> wrote: > >> I would like to help bring JSON Schemas to NeoJSON. I need that ability. >> >> - HH >> >> On Sat, Aug 12, 2017 at 18:13, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: >> >>> Sven is still the developer and maintaner of NeoJSON. It would be nice to have JSON Schemas in NeoJSON. You could abort the read of a stream if the schema is invalid, without having to build the whole object tree or to parse the whole stream. Regards! Esteban A. Maringolo 2017-08-12 17:04 GMT-03:00 henry : > Is Sven still working on NeoJSON? I want to help expand it to use > JSONSchemas. > > https://spacetelescope.github.io/understanding-json-schema/ > > I was looking at ASN1Module in Cryptography... > > - HH @callistohouse.club>

Aug. 12, 2017

Re: [Pharo-dev] Add JSONSchemas to NeoJSON

by henry

I also need callbacks for substituation during encoding, SAX-like. I think custom mapping of NeoJSON does this, with clusters. But I am unsure. - HH On Sat, Aug 12, 2017 at 19:07, henry <henry(a)callistohouse.club> wrote: > I would like to help bring JSON Schemas to NeoJSON. I need that ability. > > - HH > > On Sat, Aug 12, 2017 at 18:13, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: > >> Sven is still the developer and maintaner of NeoJSON. It would be nice to have JSON Schemas in NeoJSON. You could abort the read of a stream if the schema is invalid, without having to build the whole object tree or to parse the whole stream. Regards! Esteban A. Maringolo 2017-08-12 17:04 GMT-03:00 henry : > Is Sven still working on NeoJSON? I want to help expand it to use > JSONSchemas. > > https://spacetelescope.github.io/understanding-json-schema/ > > I was looking at ASN1Module in Cryptography... > > - HH @callistohouse.club>

Aug. 12, 2017

Re: [Pharo-dev] Add JSONSchemas to NeoJSON

by henry

I would like to help bring JSON Schemas to NeoJSON. I need that ability. - HH On Sat, Aug 12, 2017 at 18:13, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: > Sven is still the developer and maintaner of NeoJSON. It would be nice to have JSON Schemas in NeoJSON. You could abort the read of a stream if the schema is invalid, without having to build the whole object tree or to parse the whole stream. Regards! Esteban A. Maringolo 2017-08-12 17:04 GMT-03:00 henry : > Is Sven still working on NeoJSON? I want to help expand it to use > JSONSchemas. > > https://spacetelescope.github.io/understanding-json-schema/ > > I was looking at ASN1Module in Cryptography... > > - HH @callistohouse.club>

Aug. 12, 2017

Re: [Pharo-dev] Add JSONSchemas to NeoJSON

by Esteban A. Maringolo

Sven is still the developer and maintaner of NeoJSON. It would be nice to have JSON Schemas in NeoJSON. You could abort the read of a stream if the schema is invalid, without having to build the whole object tree or to parse the whole stream. Regards! Esteban A. Maringolo 2017-08-12 17:04 GMT-03:00 henry <henry(a)callistohouse.club>: > Is Sven still working on NeoJSON? I want to help expand it to use > JSONSchemas. > > https://spacetelescope.github.io/understanding-json-schema/ > > I was looking at ASN1Module in Cryptography... > > - HH

Aug. 12, 2017

[ann] moldable editor - syntax highlighting ... with a twist

by Tudor Girba

Hi, After another intense week, we are happy to announce that the Brick editor now supports some advanced syntax highlighting. To put it in perspective, let us take a look at one screenshot showing an inspector presentation containing a Brick editor opened on a Pillar file that includes some text, a code snippet and a reference to a picture: This shows both that we style the text based on the Pillar grammar, but also that we can style Smalltalk code (in fact, we have two nested stylers here). But, the more interesting thing is that below the picture reference, we get to see the actual picture (which happens to be another inspector screenshot). In fact, this picture is actually just another text attribute (we call it an adornment) that can be dynamically added to any text elements. This opens up a whole lot of expression power and it is all easily compose-able. This is another reason why we say that this editor is moldable and you should expect new applications making use of this moldability and combining it with the liveliness of Pharo. The latest Brick code is loadable through: Metacello new baseline: 'Brick'; repository: 'github://pharo-graphics/Brick/src'; load: #development. If you want to play with Pillar, load the following extra code and just inspect a Pillar file: Metacello new smalltalkhubUser: 'Pier' project: 'Pillar'; configuration: 'Pillar'; version: #development; load. ((IceRepository registry detect: [ :each | each name = 'Brick' ]) packageNamed: 'Brick-Editor-Pillar') loadLatest. One other thing to mention is performance. What Alex (Syrel) managed to do is quite remarkable. To see the impact in practice, try editing the largest method in Pharo (UnicodeDefinitions class >> #data) in both the built-in editor and in the Brick editor by inspecting: BrTextEditor onMethod: UnicodeDefinitions class >> #data There are still issues left to deal with and we will focus on them in the following weeks. But, we can safely say that the most important challenges are now behind us and that the design of the editor code is stable and robust. Please do let us know what you think. Cheers, The feenk team -- www.tudorgirba.com www.feenk.com "If you interrupt the barber while he is cutting your hair, you will end up with a messy haircut."

Aug. 12, 2017

Re: [Pharo-dev] recent slowdown of files.pharo.org and smalltalkhub

by Gabriel Cotelli

Since the latest infrastructure problems it's dead slow. I have a clean local copy but the Travis builds are suffering a lot this timeouts. On Aug 12, 2017 16:07, "Peter Uhnak" <i.uhnak(a)gmail.com> wrote: > Hi, > > does anyone know what is the reason for the recent slowdown of downloading > (latest) images from files.pharo.org? I had travis builds timeout on this > (downloading images for 10+ minutes, etc.), and was several times unable to > download new images even locally. > > Thanks, > Peter > >

Aug. 12, 2017