| [Squeak-ev] Deutsches 3.7g zum testen
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25 Sep 04 |
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Markus Denker posted this to the Squeak-ev list
Ich habe mal ein erstes deutsches 3.7g zusammengestellt:
http://www.iam.unibe.ch/~denker/Squeak3.7gDeutsch.zip
Das ist einfach das letzte 3.7g Full Image + deutsche uebersetzungen.
Die englischen Fenster habe ich geloescht, die engl. Demo-Projekte sind
aber noch drin.
Was wir brauchen ist
-> Eine deutscher Willkommen-text
-> ein paar deutsche Demo Projekte
-> am besten ein deutsches tutorial...
Bi den Einfuehrungs-texten sollten wir uns nicht an den englischen orientieren,
die sind naemlich eher sinnlos, denke ich.
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| GNU Smalltalk 2.1e (Development)
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25 Sep 04 |
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GNU Smalltalk is a free implementation of the Smalltalk-80 language.
Changes: Several bugfixes were made for the JIT compiler. A working
Java-to-Smalltalk bytecode translator (which does not support networking
and reflection yet) was added.
homepage
download
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| Smalltalk with Style
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25 Sep 04 |
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Stephane Ducasse posted this to the Squeak-ML. download
Smalltalk With Style is now freely available.
Thanks Suzanne, Ed, and Dave. This is a great book everybody should read!!
I added the chapter 27 of Smalltalk by Example.
I added a link to point to the book of Liu: Smalltalk, Object and Design
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| Sony details PlayStation Portable's chips
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25 Sep 04 |
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(Source: The Register)
The PSP chipset comprises a number of components: the CPU, a media
processor, a 3D graphics engine, a security processor and a power manager.
The PSP’s MIPS R4000-based CPU will run at up to 333MHz, Sony chip
designer Masanobu Okabe revealed at the Hot Chips conference in Stanford
University, California. Its frontside bus runs at up to 166MHz, with both
frequencies controlled by processor load. It contains a vector processing
engine. link
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| SAP costs too much - customers
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25 Sep 04 |
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(Source: Register) Every now and then, an analyst firm gathers up its
collective courage and issues an ROI study which contradicts everything a
vendor’s marketing department would have you believe.
So hats off to Nucleus
Research for firing a salvo at SAP for causing customers to shell out
millions on software with little more than added worker productivity in
return. link
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| ERP5: A Next-Generation, Open-Source ERP Architecture
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25 Sep 04 |
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(Source: IEEE Computer Society) When someone says enterprise resource
planning (ERP), most IT professionals think of the expensive, complex, and
difficult-to-implement commercial products that were the rage a few years
ago. Although many large corporations did reap tremendous cost savings from
the implementation of such systems, an average implementation cost counted
in the millions of dollars; this has prevented ERP systems from spreading
to small and medium-sized businesses. After ERP deployment, its
"blackbox" nature prevents from understanding and eventually
improving the business processes it implements, leaving some important
business decisions to the software publisher rather than to the corporate
manager, preventing scientific researchers from getting involved in
management innovation.
This situation provides much of the motivation for our architecture, ERP5,
which offers several advantages for business. All ERP5 tools are open
source, so are free and have openly available source code that a business
can change to suit its processes. ERP5 incorporates, from scratch, advanced
concepts such as object-oriented databases, a content management system,
synchronization, variations, workflows, and a method to model and implement
business processes. ERP5 is also a Web site where researchers can share
innovation on management techniques and their implementation through
software.
In 2001, two companies initiated the ERP5 project: Nexedi, a Zope service
provider in France (Zope is a well-known open-source application server),
and Coramy, a European apparel manufacturer. They aimed to develop a set of
ERP software components for small and medium-sized companies. In addition
to source code, the project also produced educational material and a
clearly defined theoretical model. To fit the needs of smaller companies,
they also designed ERP5 for distribution across distant sites with slow and
unreliable Internet connections.
link
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| [ANN] linalg-0.3.2 -- Ruby Linear Algebra Library
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25 Sep 04 |
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link[linalg.rubyforge.org/}
From the README:
Major features:
- Cholesky decomposition
- LU decomposition
- QR decomposition
- Schur decomposition
- Singular value decomposition
- Eigenvalues and eigenvectors of a general matrix
- Minimization by least squares
- Linear equation solving
- Stand-alone LAPACK bindings: call any LAPACK routine from directly from
ruby.
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| Interesting Ruby page: semantics & semiotics; code manufacture |
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25 Sep 04 |
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Some very interesting ruby stuff:
- Artificial Neural Networks: Implemented a multilayer backpropagating artificial neural network using a momentum term and optionally a weight decay term.
- Borges mod_ruby Integration: I have managed to get Borges running using mod_ruby. I will produce a library ready version of that and check it in the Borges project.
- and much more
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| Using SVG in Borges
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25 Sep 04 |
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Interesting blog-entry on naseby + ruby + stuff. link
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| ANN: Lafcadio 0.4.0
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25 Sep 04 |
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Lafcadio is an object-relational mapping layer for Ruby and MySQL. It lets
you treat database rows like first-class Ruby objects, minimizing the
amount of time you have to spend thinking about MySQL vagaries so you can
spend more time thinking about your program’s logic.
Its features include:
- A test-centric design that allows you extensively unit test any program
that runs on top of Lafcadio. It comes with a MockObjectStore, which mimics
the database and allows you to test database interactions without all the
annoying setup code of a real database-driven test.
- A block-driven querying language that will cover 99% of the ad-hoc queries
you have to do. These queries look like: child_users =
object_store.getUsers { |user| user.age.lt( 18 ) }
These queries can be run against the MockObjectStore, meaning they can be
unit-tested.
- In-Ruby triggers that can be written per domain class. These triggers can
be tested, too!
- Lafcadio makes very few assumptions of how your database was setup, and
comes complete with a lot of hooks to allow you to fit your pre-existing
database. Because programming’s a messy job, and we’re always
cleaning up after somebody’s mistakes (even if they were our own).
Lafcadio is production-ready and runs a number of websites, including
Rhizome.org, which more than 3 million hits a month.
link
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| Rake 0.40. is out
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25 Sep 04 |
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Rake is a make-like utility written entirely in Ruby. It allows to you
specify build target and actions, with the action being standard Ruby code.
You can get Rake from rubyforge. If you have rubygems installed, then all
you need to do is
gem -i rake
If you have a very recent version of rubygems (i.e. from CVS), then the
gen-rdoc option finally produces a decent rendition of the Rake
documentation locally.
QuickStartExample
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| midilib initial release
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25 Sep 04 |
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midilib is a pure Ruby MIDI library useful for reading and writing standard
MIDI files and manipulating MIDI event data.
The latest version of midilib (0.8.0) can be found on the midilib Web site
(midilib.rubyforge.org/). The
midilib RubyForge project page is rubyforge.org/projects/midilib/.
midilib is also available as a Gem. The Gem has been uploaded to RubyForge,
and should appear in remote gem listings soon.
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| Good ruby documentation
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25 Sep 04 |
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Just in case you have not seen this for 1.9
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| [ANN] rpa-base 0.1.0 "kitanai"
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25 Sep 04 |
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(Source: Mauricio Fernandez)
The Ruby Production Archive (RPA) will provide packages of Ruby
libraries and programs in a form that allows production use, engineered
through a stringent process resembling FreeBSD's or Debian's.
rpa-base is a port/package manager designed to support RPA. Its scope and
purposes are different to those of other systems like RubyGems.
rpa-base 0.1.0 is now available on http://rpa-base.rubyforge.org .
Please keep in mind that this is *not* a RPA release (that is, a release
of the repository) but just a release of the rpa-base tool itself. We
have provided several sample ports/packages for testing purposes, but
they don't formally belong to RPA. Read below for information on the
libs/apps packaged so far.
rpa-base requires Ruby 1.8.1 (certainly 1.8 at least, it might work on
1.8.0); it has been tested on several Linux distributions, FreeBSD and
win32. We would appreciate feedback (both positive and negative) under
those or any other architecture.
It takes but a couple minutes to install and will allow you to do
rpa install instiki ruvi
;-)
(NOTE: ruvi, the cool pure-Ruby vim clone, won't work on win32)
Features
========
rpa-base is a port/package manager designed to support RPA's client-side
package management. You can think of it as RPA's apt-get + dpkg. It
features the following (working right now):
* sane dependency management: rpa-base installs dependencies as needed,
keeps track of reverse dependencies on uninstall, and will remove no
longer needed dependencies
* atomic (de)installs: operations on the local RPA installation are atomic
transactions; the system has been designed to survive ruby crashes (OS
crashes too on POSIX systems)
* modular, extensible design: the 2-phase install is similar to FreeBSD and
Debian's package creation; rpa-base packages need not be restricted
to installing everything under a single directory ("1 package, 1 dir"
paradigm)
* rdoc integration: RDoc documentation for libraries is generated at install
time (currently disabled on win32)
* ri integration: ri data files are generated for all the libraries managed
by RPA; you can access this information with ri-rpa (currently disabled on
win32)
* handling C extensions: if you have the required C toolchain, rpa-base can
compile extensions as needed
* unit testing: when a library is installed, its unit tests are run; the
installation is canceled if they don't pass
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| [ANN] Springz 1.0 |
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25 Sep 04 |
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The Springz library allows you to attach two objects together (in 2D space) with a spring, and simulate how they pull/push each other.
Boring when used between two objects, it becomes interesting when you attach thousands of springs with different strenghts and distances between hundreds of nodes, and let the simulation determine the best configuration of those nodes. (I wrote this library specifically to create a social network diagram from a large amount of data. I had written it first in Javascript + SVG, and it was working, but too slowly: 3 hours to render the first frame, and 12+ hours for each frame after that.)
Despite the very visual nature of this application, this library doesn't know jack about graphics; it just knows how to push/pull theoretical objects around in theoretical 2D space. Making this visible to the user is up to you. (My application reads in XML data and then outputs a few frames of SVG pre-rendered animation.)
The documentation for the Springz class lists the key features at the top of it.
You can read this laboriously-written documentation, and download the file itself, from:
here (click on Springz.rb under the Files listing).
If you happen to have the Adobe SVG plugin (freely avail for Win/Mac/Linux/Solaris) installed, you can see the JS version of this library in action at -- click the green rectangle to start the simulation, and then drag objects around and/or click the orange button to scatter them about.
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| [ANN] celsoft.com/Battery 0.1.1
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25 Sep 04 |
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(Souce: Sean O’Dell) Battery is a unit testing framework for Ruby. It
captures all standard error and output and reports the entire summary of
all tests formatted as valid YAML, for easier reading and parsing. Another
key feature is that all tests run in the order they are added to their
batteries, rather than arbitrarily. See the celsoft.com/Battery homepage
for more information and documentation.
Homepage: battery.rubyforge.org/
Download: rubyforge.org/frs/?group_id=268&release_id=531
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| Managing Complexity: Keeping a Large Java Project on Track
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25 Sep 04 |
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(Source O’Reilly) Using Ruby for hourly builds. www.onjava.com/pub/a/onjava/2003/09/10/dashboard.html
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| Test Version of FreeRIDE with RRB Refactoring Support
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25 Sep 04 |
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(Source: Curt Hibbs) I just put up a test version of FreeRIDE that includes
RRB Refactoring support and I would like to ask your help in testing it.
For windows user’s there is a complete pre-built binary (it can
coexist with your current FreeRIDE installation), and for non-windows users
there are instructions for adding RRB refactoring support to your existing
FreeRIDE installation.
You can find full details at: freeride.rubyforge.org/wiki/wiki.pl?RefactoringSupport
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| A Little Ruby, A Lot of Objects
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25 Sep 04 |
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This is a draft book titled A Little Ruby, A Lot of Objects. It’s in
the style of Friedman and Felleisen’s wonderful The Little Lisper,
but on a different topic.
Welcome to my little book. In it, my goal is to teach you a way to think
about computation, to show you how far you can take a simple idea: that all
computation consists of sending messages to objects. Object-oriented
programming is no longer unusual, but taking it to the extreme - making
everything an object - is still supported by only a few programming
languages.
Can I justify this book in practical terms? Will reading it make you a
better programmer, even if you never use "call with current
continuation" or indulge in "metaclass hackery"? I think it
might, but perhaps only if you’re the sort of person who would read
this sort of book even if it had no practical value.
The real reason for reading this book is that the ideas in it are neat.
There’s an intellectual heritage here, a history of people building
idea upon idea. It’s an academic heritage, but not in the fussy
sense. It’s more a joyous heritage of tinkerers, of people
buttonholing their friends and saying, "You know, if I take that and
think about it like this, look what I can do!"
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| YAPV: yet another pickaxe version
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25 Sep 04 |
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phrogz.net/ProgrammingRuby/
is ‘done’. Enjoy!
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