- Pharo-dev - lists.pharo.org

NBMacShell still used in GraphViz
by Bernhard Pieber Jan. 15, 2017

Jan. 15, 2017

Happy New Year! The GraphViz project in the Pharo Project Catalog has the tag Pharo5.0 but still uses NBMacShell which seems to have been removed in Pharo 5. What is the right replacement for NBMacShell run: string in newer Pharo versions? Cheers, Bernhard

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Setting a project with smtalltalkCI
by Gabriel Cotelli Jan. 13, 2017

Jan. 13, 2017

Hi! anyone with smalltalkCI experience? I'm trying to setup travis CI integration for one of my projects ( https://github.com/ba-st/RenoirSt/tree/smalltalk_ci) and I'm getting a cryptic error on the builds: https://travis-ci.org/ba-st/RenoirSt/jobs/191751457 Any hints are welcome. Thanks, Gabriel

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Strange DNU effect on Windows with Pastell
by Torsten Bergmann Jan. 13, 2017

Jan. 13, 2017

I have a strange effect I was not able to find out so far. You can try with any newer Pharo image/VM but here are the exact combination I tried: 1. Load latest VM from https://dl.bintray.com/pharo-project/pharo-vm/ which is as of today (https://dl.bintray.com/pharo-project/pharo-vm/pharo-win-i386-201701091105-b…) Extract in a directory. 2. Download and extract http://files.pharo.org/sources/PharoV50.sources.zip into same directory 3. Use latest image http://files.pharo.org/image/60/60342.zip in same directory 4. Start Pharo and load "Pastell" Metacello new smalltalkhubUser: 'Pharo' project: 'MetaRepoForPharo50'; configuration: 'Pastell'; version: #stable; load. 5. Put some Transcript output into: XMLNodeWithElements>>#doesNotUnderstand: by changing it to: doesNotUnderstand: aMessage "If I have one or more childs whose name is the same as the selector, return them in a PastellCollection. Otherwise, let the DNU propagate" | v | Transcript show: aMessage selector asString;cr. v := self child: aMessage selector. ^ v ifEmpty: [ super doesNotUnderstand: aMessage ] ifNotEmpty: [ v ]. 6. Now evaluate: | xml document htmls html heads | Transcript open;clear. xml := '<html> <head></head> <head></head> </html>'. document := XMLDOMParser parse: xml readStream. htmls := document html. "gives a pastell collection using the #doesNotUnderstand: trick" html := htmls first. "first element from collection, the class is XMLElement, a subclass of XMLNodeWithElements" html head "should call #doesNotUnderstand: again in XMLNodeWithElements but it is not" As you see the #html message triggers the #doesNotUnderstand: while #head does not. For strange reasons the XMLNodeWithElements>>#doesNotUnderstand: is only called once and then not anymore. Did I miss something? Last time Pastell worked was in Pharo 3.0. Is this a Cog issue or something I do not see? It seems to work on Mac (according to Stephan Eggermont). Any idea? Thanks T.

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The 2017 Stack Overflow Developer Survey is Now Live
by Richard Sargent Jan. 13, 2017

Jan. 13, 2017

Arden Thomas reports "Questions 39 and 47 give us an opportunity to mention Smalltalk." http://stackoverflow.blog/2017/01/The-2017-Stack-Overflow-Developer-Survey-… -- View this message in context: http://forum.world.st/The-2017-Stack-Overflow-Developer-Survey-is-Now-Live-… Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

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Can anyone explain #asInteger for Strings?
by Richard Sargent Jan. 13, 2017

Jan. 13, 2017

I've come across an implementation of #asInteger and #asSignedInteger in Pharo 3.0 that leaves me scratching my head. Can anyone explain why it was defined to answer what it does for strings that one would really not expect to parse as a number. 'abc-123-xyz-897' asSignedInteger ===> -123 To my mind, the method that does this for the example string should have an intention revealing name like #spelunkIntegerFromString or some such. Thanks, Richard -- View this message in context: http://forum.world.st/Can-anyone-explain-asInteger-for-Strings-tp4929502.ht… Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

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problem with linux: missing
by Nicolas Anquetil Jan. 13, 2017

Jan. 13, 2017

a fresh install of moose image failed to start on a number of Linux machines because of missing libraries the missing dependencies are libGL and libX11 that for some reasons were not installed (but it was a running linux with graphical interface). See below --- $ ldd vm-display-X11 linux-gate.so.1 => (0xf7766000) libpthread.so.0 => /lib32/libpthread.so.0 (0xf76ff000) libGL.so.1 => not found libX11.so.6 => not found libc.so.6 => /lib32/libc.so.6 (0xf754b000) /lib/ld-linux.so.2 (0x5661f000) --- there should be a way to test that. Not too sure how. May be an installer in the form of a headless image using the system ldd (see above) command ? nicolas -- Nicolas Anquetil -- MCF (HDR) Project-Team RMod

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collection flatCollect: #something VS (collection collect: #something) flattened
by Julien Delplanque Jan. 12, 2017

Jan. 12, 2017

Hello everyone, While using #flatCollect: on a collection, I realized that, for example, these two code snippets do not behave the same way: #(1 (1)) flatCollect: #yourself. "Raise an error because the array does not contain only collections" (#(1 (1)) collect: #yourself) flattened "Returns #(1 1) Shouldn't these two code snippets behave the same way? Thanks in advance for your answers. Regards, Julien

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Looking for Pharo devs
by miron＠tutanota.de Jan. 12, 2017

Jan. 12, 2017

Hello, Looking for someone with thorough Pharo experience for some experimental changes to the Pharo environment and language. Some areas you will expertise in: 1. Syntax parser.2. AST.3. Thorough overall environment knowledge. For more details send an e-mail to miron(a)tutanota.de.

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subexpression precedence
by James Ladd Jan. 12, 2017

Jan. 12, 2017

Hi Pharo People, I know Smalltalk has precedence rules when subexpressions () are involved. 2 + ( (3 * 4) - 1 ) evaluated last ( (evaluated first) evaluated second ) That is the inner most subexpression is evaluated first. Given the following made up expression for the purposes of my question: self at: (self offset) - 1 put: (2 * (12 / 4)). Are there precedence rules for the subexpressions that are part of the keyword expression? ie: Should (self offset) - 1 be evaluated before (2 * (12 / 4)). My thinking is that with keywords the arguments are evaluated left to right - that is at: before put: but within each the regular subexpression precedence applies? - James. -- View this message in context: http://forum.world.st/subexpression-precedence-tp4929398.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

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Call of projects of open-dev lectures
by Stephane Ducasse Jan. 11, 2017

Jan. 11, 2017

Hi We are organising a lecture where students should - learn pharo - learn how to communicate with open source community - learn how to reverse engineer, fix bugs.... They should work by 3/4. We are looking for projects that would like to accept - propose some bugs to be fixed - to communicate with newbies and from time to time I was thinking about - MDL - Roassal - Moose ? - Pillar ? but nobody beside me and I do not have the time - DRGeoII - Telescope - Artefact - Scale - Ecstatic So if you have a project and you want to participate. We would like to have - web page? - mailing-list - bug trackers/todo? Stef

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