Squeak-dev January 2008

squeak-dev@lists.squeakfoundation.org

147 participants
192 discussions

Re: [Q] WAListener and WAFileLibrary problem
by chunsj＠embian.com 05 Jan '08

05 Jan '08

I've found the main reason of image corruption; that's because WAListenerEncoded does use UTF8Stream *unconditionally* as you said it does not decide based on mime type. But I cannot understand why Korean as UTF8 should not work. My image is cutomized by me so that it does support Korean and others(Japanese and Chinese but no font for these 2). WideString for korean can be fawlessly converted to/from UTF8 encoded byte string. Is this the work be done by WAListenerEncoded? Thank you for your help. Now I'm trying to find content-type of WAResponse before using UTF8Stream. ----- Original Message ----- From: Philippe Marschall <philippe.marschall(a)gmail.com> To: The general-purpose Squeak developers list <squeak-dev(a)lists.squeakfoundation.org> Sent: 08-01-04 20:40:57 Subject: Re: [Q] WAListener and WAFileLibrary problem 2008/1/3, chunsj(a)embian.com <chunsj(a)embian.com>: > Hi, > > I've managed to find and modify WAListenerEncoded so that it can process > multibyte language - I've only tested it with Korean as UTF-8. During testing > I found following problem. Korean as UTF-8 should not work on WAListenerEncoded. If it does then it's a bug in WAListenerEncoded. The reason for this is that Korean as UTF-8 violates the contract between the server adapter and you. The *Encoded* adapters give you Strings in Squeak encoding (well not quite in the case of CJK because that is not possible since Unicode does not have the concept of language tags) but in turn expect Strings in Squeak encoding. In the case of Korean this means WideStrings. UTF-8 Strings are ByteStrings and should therefore not work. > When I use WAListener/WAListenerEncoded I cannot get FileLibrary registered > image files correctly. I can get CSS file or script file correctly, but I cannot get > image files. I don't think WAListenerEncoded can ever work for binary files. The problem is that due to it's streaming nature WAListenerEncoded compared to WAKomEncoded can never look at the response. This means it can never decide wehter is should do encoding (based on the mimetype), so it always does it. In the case of binary content this is clearly wrong. Your best option (as always) is to serve static files (images, CSS, javascript) with Apache or something similar. > It seems that when I use WAListener, the server sent the image file of the size > of 16135 byte, but original file size is 10819 byte, and this might be the source > of the problem. I cannot open wrong sized file even though I cut the size of the > file to the original one. WAListener should not do any encoding at all so images should work. But then again we don't know what code you changed so we can't really help you. It would help if you send us the image so we can test. Cheers Philippe

2 1

Re: [Q] WAListener and WAFileLibrary problem
by chunsj＠embian.com 05 Jan '08

05 Jan '08

1 0

Can someone explain SmartRefStream?
by Jerome Peace 04 Jan '08

04 Jan '08

Can someone explain SmartRefStream? Hi all, Can someone please explain how smart reference stream works and what knowledge is useful in getting it to do ones bidding? Context: I save my work as projects. Usually I am working in the latest test pilot alpha but occasionally I switch to other images such as OPLC and Squeak-dev image. Then if I work on the project some more and store it out. I find I will not be able to read the project back into the test pilot alpha image. This is true even if the changes to the project are essentially null. And across some images true even for an empty project. Often the stream reader will ask me for a modern class to replace the name of one I have in the image or some such. Which of course confuses me and leaves me guessing. There are conversion methods and even files that can be read in to help some conversions. What does a newbie squeaker need to know to get SmartRefStream to do their bidding? User story: When I have a project needing to be saved across images. I go out to a page and a repository. Read what is known about the conversion of projects from one image to another. Select from a downloadable library of helpful conversion tools each documented as to context in which it is useful. Create conversion files for what isn't covered. And then have the ability to convert projects round trip. And a knowledge of what to close, delete, eliminate from my project before I save it to help avoid conversion difficulties. Expectation: Partial progess counts. Even if this would be an overwhelming task to do all at once, the low hanging fruit would be a good start. In particular we should thing in terms of squeak-basic and Damien's squeak-dev and squeak-web. Also in terms of gettng squeak.org squeak and squeakland/olpc squeak more reconciled than they are now. Baby step question one: Can the various squeaks read each others "Empty" projects? Baby step question zero: From this post I hope to receive information that will put this effort further along. Can you please help? Cheers and happy new year. Yours in curiosity and service, --Jeorme Peace ____________________________________________________________________________________ Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs

2 1

[JOB] Smalltalk position (UK based)
by Stéphane Ducasse 04 Jan '08

04 Jan '08

might help/interest some squeakers :) Begin forwarded message: > From: "Rob Vens" <rob(a)sepher.nl> > Date: 4 janvier 2008 15:45:17 HNEC > To: rob(a)sepher.nl > Cc: james.tilley(a)cititec.com > Subject: [Esug-list] Smalltalk position (UK based) > > Following is the job description. Please respond if you are > interested to: > > James Tilley > Financial Markets > > Cititec Associates Limited > > 50 Featherstone Street , > London, EC1Y 8RT > > t +44 (0) 20 7608 5858 > > d +44 (0) 20 7608 5813 > > f +44 (0) 20 7608 5888 > > james.tilley(a)cititec.com > ========= > > XXX is one of the world's leading banks as measured by client > franchise, product breadth, geographic reach and revenues. The firm > provides clients with a full range of investment banking and > commercial banking products and services. It advises on corporate > strategy and structure, raising and placing capital, making markets > in financial instruments and offering sophisticated risk management > tools and strategies. > XXX is a world leader in derivatives trading and product > innovation, with structured derivative products being a particular > speciality. That means we need world class technologists in what is > a complex, ever-changing business domain, where speed-to-market of > technology solutions is often the driver of technology spend and > decision-making. > > IB Tech Exotics and Hybrids and Retail Structured Products > Technology provides end to end technology solutions for the > structuring, sales, trading and processing of all Rate Derivative, > Credit Derivative and Equity Derivative products traded in the > Investment Bank. These solutions include client facing pricing > tools, sophisticated trader risk management tools and models, trade > management and settlement systems and accounting engines. Products > within scope include interest rate derivatives, interest rate > swaps, credit default swaps, collateral debt obligations, equity > derivatives, foreign exchange, commodity products, and their > related derivative instruments. > Kapital > The candidate will be a member of a development team responsible > for the support and enhancement of the Kapital risk management > system in London. > Kapital supports the non-vanilla fixed income derivatives, credit > hybrids derivatives, FX derivatives, and multi asset derivatives > businesses. It is a global system, deployed locally in London, New > York, and Asia Pacific. It stores the prime records for a vast > range of instruments (all of which can be arbitrarily combined > within a single deal). These include the simplest fees, swaps, > caps, floors, and credit default swaps through to the most complex > multi-asset derivatives such as FX Turbo Swaps, Interest Rate and > FX Range Notes, and credit hybrids basket derivatives. > > > Role > The role will require the candidate to develop detailed knowledge > of both derivatives trading businesses and OO development. The team > is co-located with the business, and hence requires team members to > have strong communication skills. > > The candidate will be working closely with front and middle office > users to define and document requirements. Requirements will > mostly center on a detailed and technical aspect of derivatives > risk management. They will initially be only high level. The > successful applicant will be expected to be comfortable working > with quants and traders to efficiently refine these initial > requirements into a deliverable specification. > The developers are responsible for developing, testing and > delivering the specification using an agile programming approach > resulting in software delivered on time and in budget. > > The applications delivery environment is highly object oriented and > written entirely in Smalltalk. If necessary, the applicant will be > expected to learn Smalltalk quickly and subsequently begin > delivering software to the business as soon as possible. > > The successful applicant is most likely to be a graduate with a > higher level degree or doctorate in a mathematical subject keen to > develop a career in a world class investment bank. They will have > between 1 and 3 years experience developing commercial software, > during which time they will have gained considerable experience of > Object Oriented software practices. > > > > Essential Skills & Experience: > > General > Experience of application development, preferably within the > financial areas (Investment banks, Hedge Funds or investment groups) > > Proactive with a delivery focus approach to work and able to work > without direction > > Strong communication and team working skills are essential > > Excellent analytical and problem solving skills > > Candidate should have experience of structured development & > release/implementation practices. > > Candidate preferably has experience of working with F/O and/or M/O > users and able to understand their requirements quickly. > > Experience of working in a pressurized role, to tight deadlines in > a constantly changing environment > > Candidate should have high awareness of control and Audit > requirements for an investment bank and how it impacts the > development environment > Finance: > Good understanding of financial markets and products > > Technical > > The candidate should have expertise in an object oriented > programming language (e.g. Java, C++, C#, Smalltalk) > Size of Team > > 17 > Is the team global > > Yes > Who will the candidate report to > > Development Team Manager > > Core day to day activities > > Technical development and application design > > Support for BAU > > Unique selling points to this role > > Close relationship and proximity to the Front Office and Middle > Office. > > Project is key for the front office to develop their business and > keep their market shares. > > Interview process > > Project Manager and team members > > _______________________________________________ > Esug-list mailing list > Esug-list(a)lists.esug.org > http://lists.esug.org/listinfo/esug-list

1 0

[Q] WAListener and WAFileLibrary problem
by chunsj＠embian.com 04 Jan '08

04 Jan '08

Hi, I've managed to find and modify WAListenerEncoded so that it can process multibyte language - I've only tested it with Korean as UTF-8. During testing I found following problem. When I use WAListener/WAListenerEncoded I cannot get FileLibrary registered image files correctly. I can get CSS file or script file correctly, but I cannot get image files. It seems that when I use WAListener, the server sent the image file of the size of 16135 byte, but original file size is 10819 byte, and this might be the source of the problem. I cannot open wrong sized file even though I cut the size of the file to the original one. Can anyone help me? Thanks in advance.

4 4

OSProcess on Windows
by Keith Hodges 04 Jan '08

04 Jan '08

I am developing on mac and deploying to windows, so I am not able roll my own OSProcess plugin for windows. Is the OSProcess plugin available as a prebuilt dll or vm from anywhere? many thanks in advance Keith

3 2

Intel Resigns From OLPC Board?
by Ron Teitelbaum 04 Jan '08

04 Jan '08

Hello All, The wall street journal is reporting that Intel has resigned from the OLPC board and has canceled plans to develop an Intel based OLPC computer over demands that it stop selling its competitor classmate computer. Can anyone confirm this? Ron Teitelbaum Squeak News Team Leader

3 2

unix stat command on files via FFI
by John M McIntosh 04 Jan '08

04 Jan '08

I'm wondering if anyone has coded up the FFI for doing a unix stat command? If so could they share it? -- = = = ======================================================================== John M. McIntosh <johnmci(a)smalltalkconsulting.com> Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com = = = ========================================================================

2 3

Box-Admins Team Report for December, 2007
by Ken Causey 04 Jan '08

04 Jan '08

The box-admins team is reponsible for seeing that the community shared server is maintained and setting up any new features to be hosted on that server. For December 2007: At the very beginning of the month the mailing lists were down over at least part of a weekend. Once we realized the problem it was corrected as quickly as possible. Some file cleanup work was started since the file space on the community server was starting to get a little tight. Progress was made but the work continues. I want to thank the community for the monetary support needed to fund the box and remind them that the bills continue to appear and that you can currently contribute to the hosting bills by going to http://www.squeak.org/Foundation/SupportSqueak/ and purchasing a Squeak badge. Note that a donation here may be used for other Squeak Foundation services including but not limited to development, development infrastructure, and promotion of Squeak. The services being hosted have continued to grow and include (but are not limited to): http://www.squeak.org/ SqueakMap - http://map.squeak.org/ http://ftp.squeak.org/ http://lists.squeakfoundation.org/ http://discuss.squeakfoundation.org/ http://source.squeakfoundation.org/ http://map.squeak.org/ https://svn.squeak.org/ http://update.squeakfoundation.org/ http://wiki.squeak.org/ http://bugs.squeak.org/ and DNS services for squeak.org and squeakfoundation.org domain names. Ken

1 0

Decide on what image to use
by David Zmick 04 Jan '08

04 Jan '08

i want to decide on an image to use, and i don't know which ones are recomended, should i use squeak-dev, or some other one? whick one is your personal favorite?

4 4

Jump to page: