[Pharo-users] How do you store and manage small programs?

I have just created a couple of small playground scripts that do some useful data wrangling. The chances are that I will reuse them from time to time, but with tweaks. Does version 6 Have some way to store them? I think I am after a sort of scripts catalogue.

Re: [Pharo-users] How do you store and manage small programs?

Wow! What a great collection of answers. Thanks everyone, I learned a lot from that relatively simple question. I have installed QuickAccess - that's very cool. And, I have also tried the

[Pharo-users] Is there a way to set form colours using a 'fuzzy' option?

I have an image with black text, and a white background. I would like to set the white pixels to transparent. I worked out how to do this, but of course it leaves me with a white halo around the text, where the border pixels are almost white, but not quite. In googling about this, I discovered tha

Re: [Pharo-users] Is there a way to set form colours using a 'fuzzy' option?

Nicolai wrote >>> You can draw a new form with copybits and use your own color mapping. First, I thought there would be a bitblt operation that you could use without explicit calculating the color mapping, a paint operation that would convert a gray-value to an alpha value. But I could find it.

[Pharo-users] Is there a way to stop arrays sorting automatically?

I suspect I am missing something very obvious, in which case could some kind soul put me straight? I have the following code col := OrderedCollection new. (1 to: 9) permutationsDo: [ :each | col add: (each )]. I thought this would give me a collection containing all the permutations. However, wh

Re: [Pharo-users] Is there a way to stop arrays sorting automatically?

Ben wrote >>> Its not so much that your first example sorted the permutations, but that the collection contained only one permutation. I've swapped the order of your examples and downsized them to the simplest case to observe. Something seems broken. It works as expected if the "copy" is uncommen

Re: [Pharo-users] Is there a way to stop arrays sorting automatically?

Denis wrote >>> It's same as any other code. Just follow instructions https://github.com/pharo-project/pharo/wiki/Contribute-a-fix-to-Pharo. It is now simplified a lot. <<< Wow! That has improved a lot. I have bookmarked the site, and I now have a reason to learn iceberg. Out of curiosity, and

Re: [Pharo-users] Is there a way to stop arrays sorting automatically?

Henry said It's not broken, but certainly deserves a comment as to why it operates inline; In the general case, one should not use/care about any given permutation outside the block. Allocating n! instances of an n-sized array by default, is a bad tradeoff considering performance degradation

Re: [Pharo-users] Is there a way to stop arrays sorting automatically?

Richard wrote >>> I would check this in Pharo, but have so far failed to get it running under Ubuntu 17.10. Squeak _is_ running there, sort of, and the definition of #permutationsDo: in Interval is this code: permutationsDo: aBlock "Repeatly value aBlock with a single copy of the receiver. Reorde

[Pharo-users] Strange colour reversal on the Spec site

Hello, I am posting here, because I couldn't find a Spec specific list. Two things: 1. The colour scheme for all the code examples on the site seems to have gone very odd. The text is now a light blue/green on a white background. Almost completely illegible. Has someone changed a css fil

Re: [Pharo-users] Strange colour reversal on the Spec site

Steph, Thanks very much for such a comprehensive answer. I shall look forward to hearing from the board. Cheers Andy

[Pharo-users] Is anyone interested in developing a package for Google's Data API?

I use Google's spreadsheet and word processor a lot. I would love to be able to access the data through Pharo. I can envisage all sorts of use-cases such as manipulating data collected through the spreadsheet forms, through to generating slide shows by writing to their presentation app. The thing

Re: [Pharo-users] Is anyone interested in developing a package for Google's Data API?

ᐧ Sven said <<< Hi Andy, I think we have all the building blocks to do this (ZnClient from Zinc, HTTPS from Zodiac, OAuth2 from Zinc-SSO, JSON from NeoJSON), so that is good. But there are a large number of Google APIs ( https://developers.google.com/gdata/docs/directory), each of them containing

[Pharo-users] Is there a way to store workspace 'gists' in Pharo?

>From time to time I write a workspace script that I would like to keep. Obviously, I could save them to a file, but I was wondering if there was a way of saving them in the image, and browsing them in some friendly way? Cheers Andy ᐧ

Re: [Pharo-users] Is there a way to store workspace 'gists' in Pharo?

ᐧ Doru said <<< If you work with Pharo 4, they should already be saved in a play-cache folder. >> Great, I shall go and experiment. Cheers Andy

Re: [Pharo-users] Is there a way to store workspace 'gists' in Pharo?

Stef said: << I usually create a method and a class. because script do not compose well. >> ᐧ > > Thanks, that sounds interesting. And, just for clarity, do you mean that you create a single class e.g. MyGists and then create methods for each of your useful snippets? Or, is there a benefit in crea

[Pharo-users] Has anyone tried compiling the Pharo VM into JS using Emscripten?

I just saw this implementation of SQLite as a JS system, via Emscripten, and I was curious whether something similar would be even vaguely possible for the VM. Cheers Andy ᐧ

Re: [Pharo-users] Has anyone tried compiling the Pharo VM into JS using Emscripten?

me. >>>>>> You're right of course that there's something I'm doing that's slow. >>>>>> But. >>>>>> There is something I can't figure out yet. >>>>>> >>>>>> To provide a litt

[Pharo-users] Building agents in Pharo

I am interested in building a system that uses co-operating agents to parse events. Is Pharo a suitable system for this? I ask because given that it is single threaded, I wondered whether running multiple agents would present any sort of problem. Has anyone got experience of building something lik

Re: [Pharo-users] Building agents in Pharo

Sven wrote << The standard VM is using a single OS process (and thus uses a single core) but manages its own user land threads called Processes. The cool thing is that you can read/understand all this threading code (ProcessorScheduler, Process, Semaphore, Monitor, Delay, ..). There few if any limi

Re: [Pharo-users] Building agents in Pharo

> > Stef said > << > > Andy which kind of agents would you like to build? > I was playing with Actalk (I should resurrect it in Pharo 40. > But in essence an object with a thread and a mailbox > > Stef > > >> Hi Stef, In very simple terms I want to build a system that would look at what you are

Re: [Pharo-users] Building agents in Pharo

Stef wrote << You see this is what the color higlighting is doing. You type and in parallel it is trying to colorize the text. After I'm not sure that you need agents running all the time (reacting to each characters you type). I would be you I would - prototype a hierarchy of classes whose inst

Re: [Pharo-users] Building agents in Pharo

Doru wrote <<< Hi Andy, You can also just hook into GTSpotter. It already provides the infrastructure for handling parallel search and lets you focus only on specifying the search logic. Cheers, Doru >>> Brilliant! I am very impressed with GTSpotter. In fact, I am impressed with the whole GT s

Re: [Pharo-users] Building agents in Pharo

Kish wrote <<< How about this: http://www.wolframalpha.com/ Not really free form text but quite a bit keyword dependent. Closer to what will make good sense on Pharo / every enterprise app also more contextual based on what the app does. >>> Yup, totally agree. I have been playing with Mathema

[Pharo-users] Updated Pharo Days Schedule

Any chance that the presentations will be video recorded? I can't attend but I would love to watch. Cheers Andy

[Pharo-users] Problems evaluating message sends in run-time arrays

I would like to create an array with a collection of colour values. I tried both: colorList := {Color blue} and colourList := {Color named: #blue.}. In both cases it evaluates to 'Color blue' rather than the Color object. What surprised me was that: charList := {Character digitValue:35. Charac

Re: [Pharo-users] Problems evaluating message sends in run-time arrays

ᐧ Sean P. DeNigris wrote <<< Andy Burnett wrote > In both cases it evaluates to 'Color blue' rather than the Color object. 'Color blue' is the Color object you created and put in your array. It is aColor object. It's print string is 'Color blue'. S

Re: [Pharo-users] Using Google service discovery API's with Pharo Smalltalk by Richard J. Prinz

Sven wrote <<< I hadn't seen this posted on the mailing list, but this is really cool stuff. Using Google service discovery API's with Pharo Smalltalk by Richard J. Prinz http://www.min.at/prinz/?x=entry:entry150318-104537 < http://www.min.at/prinz/?x=entry:entry150318-104537;comments:1#comments>

[Pharo-users] Can we have NeoCSV, and NeoJSON included in the base image?

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

Re: [Pharo-users] Can we have NeoCSV, and NeoJSON included in the base image?

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 wonde

Re: [Pharo-users] Can we have NeoCSV, and NeoJSON included in the base image?

> > Stephan Eggermont said: > <<< > > What is stopping you from adding a build 'Andy's Base Image' to the > Pharo-Contribution CI? > >>> Ignorance :-) I had no idea such a thing was possible. It sounds like the ideal solution. Is the process documented somewhere? Cheers Andy

[Pharo-users] Configuring where ZnServer serves files from

I needed to serve some (amber) files from a local host - it was just a quick hack. I fired up the 2.0 one click image on my mac, and looked at the instructions for running the server. I can see how it would work if I installed it on Ubuntu, but I can't work out where my website's root folder would

Re: [Pharo-users] Configuring where ZnServer serves files from

<<< This should work: (ZnServer defaultOn: 1701) logToTranscript; delegate: ((ZnStaticFileServerDelegate new) prefixFromString: 'apple/macosx'; directory: '/Library/WebServer/Documents'

Re: [Pharo-users] Configuring where ZnServer serves files

<<< have a look on git https://github.com/SquareBracketAssociates/PharoForTheEnterprise-english I started to convert all the zinc documentation that sven wrote. We can add a new chapter on Zinc Usage. We are working on a format that generates autoamtically PDF and html for the next books. Stef >

[Pharo-users] Does zinc support server sent events?

I was wondering about using them instead of Websockets. Cheers Andy

Re: [Pharo-users] Does zinc support server sent events?

Sven said >>> Assuming you mean http://en.wikipedia.org/wiki/Server-sent_events the answer is no or not yet. It doesn't look very complicated though, given the fact that Zinc WebSockets do already work. I will start by reading the specs. <<< Sounds great! Please let me know if I can help in any

[Pharo-users] Halos in pharo 3

I have two related questions: 1. how does one bring up halos in the 3.0 image. I tried Cmd + Shift + two fingers (on my track pad), but nothing happens. 2. How does one get rid of the Pomodoro timers? I assumed I could use Halos - see question 1 - but maybe there is a better way? Cheers Andy

Re: [Pharo-users] Halos in pharo 3

Sean said Settings). Text search on halos and then enable "Cycle both directions">> Thanks, that worked perfectly. Cheers Andy

[Pharo-users] Pyret: adding tests directly into classes

I have just come across the Pyret language. It looks interesting, but the part which particularly caught my interest was the way that they had built the unit tests directly into the classes, rather than having separate test classes. I think this is an interesting idea. It seems as though it would

Re: [Pharo-users] Pyret: adding tests directly into classes

Doru said: <<< I stumbled across this idea when Markus Gaelli chose it as a PhD topic about ten years ago (man, I'm old). The main idea was not to provide tests, but examples that happened to have assertions. The goal was twofold: (1) provide live documentation with real objects, (2) provide anothe

Re: [Pharo-users] Pyret: adding tests directly into classes

Esteban said <<< Hi, It does not really matters where you put the test. What matters is to have the tools that show them properly, and we are going in that direction. We already have ways to "jump to tests" in Nautilus, and we will continue improving that to show them together (for example). But

[Pharo-users] PharoLauncher as the default Pharo download

ᐧ That is a good question. I have to admit that I do use iTunes, and I have often been annoyed by not being able to - easily - find the files. I can certainly see the value of presenting end users with simple interfaces, but I am with Johan, I would like to be able to put my images somewhere more

[Pharo-users] Is there any fundamental technical barrier to compiling to JVM byte codes?

I am sure it would be a huge amount of work, and may not be a good idea at all. However, given the number of dynamic languages that now compile to JVM byte codes, I am curious whether there is anything about Pharo that would make this impossible? Cheers Andy

Re: [Pharo-users] Is there any fundamental technical barrier to compiling to JVM byte codes?

<< The fun is important. What we want is well designed and powerful libraries that enabled people. For the JVM question: it is a question of resources + the fact that jvm do not really support well some key smalltalk operations. Now I do not understand why people develop their own vm instead of jo

Re: [Pharo-users] [ANN] Application Security for your domains

ᐧ <<< Hello guys, I'm doing a double announcement here. First, a new blog about development with Pharo, and Smalltalk: http://80738163270632.blogspot.com.ar/ Second, my first entry contains a post about Application Security, a new package to make Pharo applications more secure. You can start pl

[Pharo-users] Best/simplest way to read and write to a MySQL database

I need to write some agents that will process data in a MySQL database. They don't need to do anything particularly clever, and performance isn't a huge issue. I read the threads about Glorp and DBXTalk, and I was left feeling a bit confused about the best approach. Given that my needs are simpl

Re: [Pharo-users] Best/simplest way to read and write to a MySQL database

ᐧ Thanks everyone, I shall try the DBXTalk approach. It seems as though it is being actively developed. As a side note, I think it would be great if Pharo could identify a 'main stream' route for dealing with RDBMS. It would be similar to the way in which Zinc is the main way to do http etc. I wo

[Pharo-users] How do I get ZnClient to follow redirects from Google App Scripts

Hello, Google Apps Scripts allows me to create a webapp function that returns json. For security reasons the url to call the function returns a redirection. For example Curl https://script.google.com/macros/s/AKfycbyjVyXa9cYqYZg6kfSdiT8l6S0Q3LEzn6FvonoI1G1MzXeegrOB/exec Returns an html page wit

Re: [Pharo-users] How do I get ZnClient to follow redirects from Google App Scripts

; Are you behind a proxy ? > > Sven > > On 16 Aug 2014, at 16:55, Andy Burnett > wrote: > > > Hello, > > > > Google Apps Scripts allows me to create a webapp function that returns > json. For security reasons the url to call

Re: [Pharo-users] How do I get ZnClient to follow redirects from Google App Scripts

ᐧ And then, as if by magic, the problem vanished! I think the problem must have been something I was doing wrong at the Google end. Everything now works. Thanks Sven

[Pharo-users] PharoJS

Is anyone experimenting with PharoJS? I managed to get the page with the core javascript functions to load - as localhost - but I couldn't get any of the actions in the workspace to have any effect on the web browser console. Has anyone had any success? Cheers Andy

Re: [Pharo-users] PharoJS

Hi guys, It is a project from Noury - at the Mines school. Just do a google for Noury and PharoJs I found out about it from Torsten's blog - always worth reading :-) AIUI, what it does is convert Pharo code - in the fly - to JavaScript. I can't say much more because I haven't got it to run. Ho

Re: [Pharo-users] PharoJS

Hi Noury, Thanks for the link to the documentation. I have managed to get up and running now - very cool! One question. When I execute 1+1 on the Pharo (pink) playground, I see the code appearing in the web browser log, but it doesn't appear to execute. Is it supposed to, or at this stage is it j

Re: [Pharo-users] Pharo-users Digest, Vol 27, Issue 62

The main thing I am wondering about is how to build portable interfaces. My ideal situation would be to use something like Spec to prototype within Pharo, and then generate something similar in JS. Alternatively, perhaps we could create mock objects for something like jquery-ui. Noury, have

Re: [Pharo-users] Ephemeric Cloud - new platform to publish Pharo web applications

Mike, that sounds really interesting. Will the instances support websocket connections, and if so, will that stop them from sleeping, i.e. if I had an app that sent out news updates via wss every 15 minutes to any listening clients, could it just continue to run, or does it have to receive a get/p

Re: [Pharo-users] Ephemeric Cloud - new platform to publish Pharo web applications

Mike wrote <<< Thanks for pointing this out! When websocket support is ready on the ephemeric gate I'll add a ping to API server so application will work continuously without any effort. I think conceptually it should "just work". Also I plan to have a "sticky-run" option so you can mark some of e

Re: [Pharo-users] PharoJS Status

>>> Craig said Hi All, I'd like to start messing around with PharoJS. Can anybody tell what the status is? (Stable, broken, etc.) And, which Pharo version should I use for this? <<< I have just started playing with it. I have had some difficulty getting a running image. Following the instructi

[Pharo-users] Using Playgrounds as a notepad

I often find that I need to do simple manipulations to passages of text, e.g. remove all carriage returns, or extract email addresses etc. Pasting the text into a Playground doesn't work because there is always an apostrophe, or line break or... etc. and the playground complains. Is there a way t

Re: [Pharo-users] Using Playgrounds as a notepad

@Dimitris Thanks for the Workspace idea. That is pretty much what I am looking for. However, I am struggling to get it to behave the way I want. When I type into the Workspace, and then inspect ws contents I just get an empty string. Is there a simple way to get the ws to update its contents so

Re: [Pharo-users] Using Playgrounds as a notepad

Thanks everyone! I completely forgot that I should ctrl+s on the workspace. I think I have just become too used to google docs etc., and it didn't occur to me that I had to save in order to update a model. Right, I now have two ways forward, and they both look useful for different problems. ws :=

[Pharo-users] Re RFC Minecraft Server

I think that is a really exciting idea. I would love to help. Are you thinking about a minecraft, or minecraft PE server? My kids play minecraft on their iPads and this isn't compatible with PC based minecraft. However, there is a nice minecraft PE server - written in PHP. Cheers Andy

[Pharo-users] Re RFC Minecraft Server

Ben said >>> Which one? <<< The one people seem to use is called pocket mine. (https://www.pocketmine.net). There may be others. >>> I was thinking of the standard PC version since I understood the PE version was not so amenable to mods. Actually my kids have been playing PE edition on iPads, an

[Pharo-users] Interleaving strings

I have two strings, which are typically of different lengths, and I want to interleave them, i.e.: 'abcdefg' interleaveWith: '123' Would produce 'a1b2c3defg' I know how to write this procedurally, but I have been very impressed by what Sven shows in his Medium articles, so I wondered if there i

[Pharo-users] Machine learning in Pharo

Are there any ML libraries in Pharo? I want to build a document classifier for the contents of an RSS feed. I was hoping to try this in Pharo. Cheers Andy

[Pharo-users] Why is split: implemented in the separator rather than the string?

I keep getting this wrong, which makes me wonder why we send split: to the separator rather than the thing to be split. Is there a benefit to doing $- split: '1969-07-20' rather than '1969-07-20' split: $- (which somehow seems more natural to me). Cheers Andy

[Pharo-users] Why is split: implemented in the separator rather than the string?

> > > > Message: 1 > Date: Thu, 19 May 2016 20:18:09 -0700 > From: John Pfersich > To: Any question about pharo is welcome > Subject: Re: [Pharo-users] Why is split: implemented in the separator > rather than the string? > Message-ID: > Content-Type: text/plain; charset=us-ascii >

Re: [Pharo-users] Call for feedbacks: Enterprise Pharo ePub version

> > > Hi, > > I created an ePub version of the book Enterprise Pharo for electronic > readers. > It would be great if you could test it and give me feedbacks on everything > that shocks you. > > You can downlod the file here< > http://files.pharo.org/books-ressources/entreprise-pharo/>. > > Thanks,

Re: [Pharo-users] Call for feedbacks: Enterprise Pharo ePub version

On 30 May 2016 at 11:32, Damien Cassou wrote: > Andy Burnett writes: > > Works very nicely on my iPhone. It would be great to have all the books > in > > this format. > > you can encourage us doing so by making a donation to ESUG which > sponsors our books. > &

Re: [Pharo-users] If you have to do web data scraping, what tool would you use?

I had a similar question, which led me to the Webdriver project (now part of selenium). I haven't done any experiments yet, but the idea of driving the browser via its API is appealing. The Parasol project says it is a Webdriver implementation for Pharo, and it looks quite exciting. The build

Re: [Pharo-users] [Pharo-dev] [ANN] JSONWebToken

I am really interested in this work on JWT. We've been using it quite a lot. For instance we use JWT to link an application written in PHP to a Firebase backend. Works beautifully. The thing that I am still trying to wrap my head around, is whether there is a – standard – way of using the clai

[Pharo-users] How does one specify a format for an ImageMorph based on a binary stream

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 t

Re: [Pharo-users] How does one specify a format for an ImageMorph based on a binary stream

Thanks @Hilaire and @Sven. I had misunderstood the purpose of the imageExport method. Cheers Andy

Re: [Pharo-users] UK Smalltalk User Group Meeting - Wednesday, May 27th

> Any chance the meeting could be recorded? I want to attend, but it is > clashing with a work meeting. Cheers Andy >

[Pharo-users] Dynamically updating the inspector window

Is there a way to make the inspector automatically update itself, when the value it is inspecting changes? For example, if I were inspecting an array, and at:1 put: 'blah' I would like the inspector to reflect that change. I know I can get the window to update by clicking the refresh icon, I just

Re: [Pharo-users] Dynamically updating the inspector window

Andrei said >>> Are you in Pharo 6.1? There is a setting to enable automatic refresh in the inspector. I think it's called Step Refresh in the settings browser.Should be enabled by default in Pharo 7. Just now all presentations from the inspector have the automatic refresh implemented. Th

[Pharo-users] Gemstone as a service?

Hello, I was wondering if anyone offers GaaS? I would love to be able to just focus on writing code, and leave the system management to others. Gemstone does seem to offer a very complete package. Also, does anyone know what's happening with Pharocloud? The site is still running, but it seems to b

Re: [Pharo-users] Gemstone as a service?

James wrote: <<< Will you be coming to ESUG? Perhaps we could discuss this in more detail after my talk on Wednesday at 12:30 (https://esug.github.io/2018- Conference/conf2018.html ). >>> Unfortunately not, so I will have to wait for the slid

[Pharo-users] Adding an Authorization Bearer header via Zinc

I am building some pharo scripts to edit tasks in the Asana.com system. I have generated a Personal Access Token, and the terminal command of: curl -H "Authorization: Bearer 12345abc" https://app.asana.com/api/1.0/users/me Returns 200/ok, and the right data. However, the pharo commands tmp1 :=

Re: [Pharo-users] Adding an Authorization Bearer header via Zinc

Norbert said <<< You have a colon in the name of the header. I?m not sure zinc removes it. It could be a problem. >>> Ah, spot on. Apparently, we need the colon for Curl, but not for Pharo. Also, response setAuthorization turned out to be the best approach. For anyone searching this list, in the

[Pharo-users] Using ZnEasy getPng: with an octet-stream

Next step of my Asana adventure. In a browser https://s3.amazonaws.com/profile_photos/206785263586755.0mU1QMOxVZLp3WiRWhWX_128x128.png downloads a png. When I try ZnEasy getPng: with the same address, I get a walkback saying expected image/png actual application/octet-stream. Is it possible to

Re: [Pharo-users] About the IoT Hackathon last Friday

Do you think there is anyway we could run one of these virtually? I would love to have been involved, but finding time to travel is tricky. A virtual (or blended) event would be much easier. If it helps, I have a corporate Zoom account thst would support up to 500 participants - gotta think big