December 2014 - Pharo-users

Re: [Pharo-users] Building agents in Pharo
by Andy Burnett Dec. 23, 2014

Dec. 23, 2014

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 instances have a kind of patterns to know if they should be kick in - at the end of each line, I would send the line to a list of such "agent" and react - then only then, I would consider to fork the behavior of the agents. why? because when you can avoid concurrency this is simpler :) >> Thanks, that sounds like a very good way forward. I will go and try to understand the highlighting code. Cheers Andy

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[ANN] FTP and WebDAV Plugins for Pharo's FileSystem
by Udo Schneider Dec. 23, 2014

Dec. 23, 2014

All, I just finished FTP and WebDAV plugins for Pharo's FileSystem. This means you can now access remote FTP and WebDAV loactions with the exact same FileSystem API you are using to access local disks. The project lives on Smalltalk Hub: http://smalltalkhub.com/#!/~UdoSchneider/FileSystemNetwork Details in the project README or in a Blog entry: http://readthesourceluke.blogspot.de/2014/12/ftp-and-webdav-plugins-for-pha… Best Regards, Udo PS: Support for Netware & Rumpus FTP Servers as well as S3 support is next :-)

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Re: [Pharo-users] Building agents in Pharo
by Andy Burnett Dec. 23, 2014

Dec. 23, 2014

> > 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 typing in a text box, and have various agents that analyse the text and modify/augment it. Simple Examples: 1. If I enter a web address it could look it up on Delicious.com and extract links that had been similarly tagged. 2. If I enter something that looks like a name, it would search google scholar, or mendeley and include links to any documents 3. If I entered "call david tomorrow" it would be able to add something to my things to do list. My - very early - thoughts are that I need to continually parse the text, as I type, and various agents would look for the things they are interested in. The question is how best to model this, and process the data. Cheers Andy

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Â¿Tagged branch development support in Pharo/Moose?
by Offray Vladimir Luna CÃ¡rdenas Dec. 23, 2014

Dec. 23, 2014

Hi, I wonder if there is something like fossil tagged branches and some visual clues to know to which branch commit and how to do merges. See for example at: http://fossil-scm.org/index.html/timeline?y=ci I have read the PBE2 book on monticello development and is easy to go to a previous version, made some changes and then merge from there, but seems not much "elegant". I would expect something like the possibility to commit to a particular branch with a particular name o create one if none is named like that, in a similar way to fossil. Also I would expect some tree-like visualization of the branches, commits and merges. There is something that can support this development workflow? Thanks, Offray

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Christmas gift: Memory Monitor
by Alexandre Bergel Dec. 22, 2014

Dec. 22, 2014

Hi! Torsten motivated us to upgrade Memory monitor. Here is the script: -=-=-=-=-=-=-=-=-=-=-=-= Gofer it smalltalkhubUser: 'abergel' project: 'MemoryMonitor'; configurationOf: 'MemoryMonitor'; loadStable. -=-=-=-=-=-=-=-=-=-=-=-= In Pharo 3.0, you get something like: In Pharo 4.0, buttons are missing. Any idea whatâs wrong? Memory monitor is accessible from the configuration browser. Kind regards, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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Re: [Pharo-users] Building agents in Pharo
by Andy Burnett Dec. 22, 2014

Dec. 22, 2014

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 limits to the amount of processes you can have. To answer the second question: I believe SharedQueue is the class you should be looking at (first). >> Great, that sounds very encouraging. Thanks very much. Andy

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Maximum number of rules in PetitParser?
by James Foster Dec. 22, 2014

Dec. 22, 2014

I have a grammar with about 600 rules. With some work Iâve come up with a useful subset of 400 rules. Unfortunately this is still more than the 255 number of instance variables that Pharo allows. Is there a way to have PetitParser use something other than instance variables to cache the rules? Especially something that works with PPBrowser? James

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Glamour detecting changes?
by Daniel Lyons Dec. 22, 2014

Dec. 22, 2014

I have a pretty simple class and I'm using a GLMFinder to browse its contents. If I make changes to the instance I'm browsing, it doesn't look like Glamour detects the changes and refreshes. I'm using self changed: #property in the setter. If I navigate backwards and unselect, and re-browse into it, it sees the changes. What should I do? Thanks again! â Daniel Lyons

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Building agents in Pharo
by Andy Burnett Dec. 21, 2014

Dec. 21, 2014

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 like this? And, if so, what did you use for your basic queue? Is there a suitable FIFO style queue within Pharo? Cheers Andy

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Most recent version of CloudforkAWS for Pharo?
by Udo Schneider Dec. 21, 2014

Dec. 21, 2014

All, which is the most recent version of CloudforkAWS for Pharo? Thanks, Udo

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