May 2014 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] blog post explaining the codecity visualization of pharo changes
by Stephan Eggermont May 20, 2014

May 20, 2014

detect: aBlock ifOne: presentBlock ifNone: noneBlock | result | result := self detect: aBlock ifNone: [nil]. ^ result isNil ifTrue: [ noneBlock value ] ifFalse: [ presentBlock value: result ] >From CollectionExtensions in MCSmalltalkhubRepository owner: 'Moose' project: 'CollectionExtensions' user: '' password: ''

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Reef status
by Facundo Vozzi May 20, 2014

May 20, 2014

Hi, someone is working with Reef and is someone planning to migrate to Pharo 3? Is it working on Pharo 2 ? Thanks, p.s.: if nobody is migrating it maybe I can try it with Esteban instructions.

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installing pharo 3.0 on Debian wheezy
by Ralph Boland May 20, 2014

May 20, 2014

I just tried installing pharo 3.0 on Linux Debian wheezy and failed. I first went to http://www.pharo-project.org/pharo-download and downloaded the Linux version. I unzipped it and attempted to run pharo. I got the error: ralph@m31:~/Pharo$ ./pharo /home/ralph/Pharo/bin/pharo: /lib/i386-linux-gnu/i686/cmov/libc.so.6: version `GLIBC_2.15' not found (required by /home/ralph/Pharo/bin/pharo) I assume the problem is Pharo is expecting me to have the 64 bit version of a library and i have the 32 bit version of the library but I am not sure of that. So I tried installing the Ubuntu version (from the same web page) following the instructions I ran: sudo add-apt-repository ppa:pharo/stable sudo apt-get update On the second command I got the errors: ... Hit ftp://ftp.debian.org stable/contrib Translation-en Hit ftp://ftp.debian.org stable/main Translation-en Hit ftp://ftp.debian.org stable/non-free Translation-en Err http://ppa.launchpad.net wheezy/main Sources 404 Not Found Err http://ppa.launchpad.net wheezy/main i386 Packages 404 Not Found Ign http://ppa.launchpad.net wheezy/main Translation-en_CA Ign http://ppa.launchpad.net wheezy/main Translation-en Fetched 129 kB in 4s (30.7 kB/s) W: Failed to fetch http://ppa.launchpad.net/pharo/stable/ubuntu/dists/wheezy/main/source/Sourc… 404 Not Found W: Failed to fetch http://ppa.launchpad.net/pharo/stable/ubuntu/dists/wheezy/main/binary-i386/… 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead. The solution is probably obvious to many of you. If I could be enlightened as to what to do that would be great. Thanks Ralph Boland

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PPFlexiblePredicateSequenceParser
by Sean P. DeNigris May 19, 2014

May 19, 2014

I needed a parser that would match input against a predicate block, like PPPredicateSequenceParser, but for an unknown/variable length. For example, whereas for fixed-length matches you can already: parser := PPPredicateSequenceParser on: [ :value | value first isUppercase ] message: 'uppercase 3 letter words' size: 3. (parser parse: 'Abc') isPetitFailure not. Now you can: parser := PPFlexiblePredicateSequenceParser on: [ :value | Object canUnderstand: value asSymbol ] message: 'message to an object' while: [ :e | e ~= Character space ]. (parser parse: 'hash ijk') isPetitFailure not. (parser parse: '99 ijk') isPetitFailure. Is this generally useful enough to add to PetitParser? For now, you can get it via: Gofer it smalltalkhubUser: 'SeanDeNigris' project: 'SeansPlayground'; package: 'PPFlexiblePredicateSequenceParser'; load. ----- Cheers, Sean -- View this message in context: http://forum.world.st/PPFlexiblePredicateSequenceParser-tp4759616.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

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Re: [Pharo-dev] [Pharo-users] blog post explaining the codecity visualization of pharo changes
by Sven Van Caekenberghe May 19, 2014

May 19, 2014

On 18 May 2014, at 10:47, Hilaire Fernandes <hilaire.fernandes(a)gmail.com> wrote: > It is really a nice way to announce/talk smartly and originally on Pharo > release out there. Yes, really nice. If only we knew what #detect:ifOne:ifNone: did ;-) > Thanks > > Hilaire > > Le 18/05/2014 09:52, Tudor Girba a Ã©crit : >> Hi, >> >> I was asked several times for how the visualization from the Pharo 3.0 >> announcement was created. I now put together a blog post to explain it: >> http://www.humane-assessment.com/blog/communicating-changes-in-pharo-3-0 >> >> Cheers, >> Doru >> >> -- >> www.tudorgirba.com <http://www.tudorgirba.com> >> >> "Every thing has its own flow" > > -- > Dr. Geo http://drgeo.eu

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200% CPU?
by Esteban A. Maringolo May 19, 2014

May 19, 2014

I am running a data migration, which involves some in-memory computation and heavy database i/o. Looking at how intensive this was the CPU use indicated by 'top' is 200% , I've seen percentages over 100% before, things like 107%... How is this possible? I'm running the pharo inside a VMWare machine with 2 cores. The good thing is that even with such high CPU, I forked the execution at userBackgroundPriority and the UI remained responsive. After this CPU intensive task took place, the vm got back to the "insidious" ~5% CPU idle state. :) Esteban A. Maringolo

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Bug in ZnUTF8Encoder
by Igor Stasenko May 19, 2014

May 19, 2014

nextPut: character toStream: stream ... code < 65535 ifTrue: [ ... should be code < 65536 ifTrue: [ because 3-byte encoding can fit 16 bits, which is range 0...65535 but not 0...65534 -- Best regards, Igor Stasenko.

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Gmail Contact Export and #readStream
by Sean P. DeNigris May 19, 2014

May 19, 2014

Two issues: 1. Exports for Outlook ============ Gmail seems to have inserted "160 asCharacter" in a few places in a gmail contact csv export, so for example this partial phone number: '(914)Â 469-' is written to file as: #[40 57 49 52 41 160 52 54 57 45] And then "aFile readStream contents" signals "ZnInvalidUTF8: Invalid utf8 input detected" when it encounters the 160 2. Google csv Exports ============ The file starts with the BOM #[255 254], which generates the same exception ============= Are these problems with gmail or Pharo? Thanks ----- Cheers, Sean -- View this message in context: http://forum.world.st/Gmail-Contact-Export-and-readStream-tp4759306.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

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Smalltalkhub project modification error
by Attila Magyar May 19, 2014

May 19, 2014

Hi, When I try to modify my project information on Smalltakhub, I receive the following error: Oops! <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>502 Proxy Error</title> </head><body> Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request PUT /hub/projects/zeroflag/TDD-Kata </hub/projects/zeroflag/TDD-Kata> . Reason: Error reading from remote server </body></html> -- View this message in context: http://forum.world.st/Smalltalkhub-project-modification-error-tp4759423.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

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Intervals behaviour for negative numbers, normal or bug ?
by kilon alios May 18, 2014

May 18, 2014

while I was recording my Interval video tutorial I observed that Interval does not behave as I would expect . Even though (1 to: 100) works as I expect, (1 to: -100) does not. In case of ( 1 to: -100) it created the interval object but it does not populate it with the numbers. I would expect it to populate the interval with the numbers or at least fail with an error. This does not look to me like normal behaviour. (-100 to: 1) on the other hand work as expected. Any thoughts on this issue ?

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