# Ruby

**URL:** https://www.ruby-forum.com/c/ruby/7.md?page=595

[Latest](https://www.ruby-forum.com/latest.md) · [Categories](https://www.ruby-forum.com/categories.md) · [Tags](https://www.ruby-forum.com/tags.md)

**Page:** 596

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## [Looking for a 3D physics engine](https://www.ruby-forum.com/t/looking-for-a-3d-physics-engine/189156)

<div class="topic-metadata">

**Author:** [@kingkadelfek](https://www.ruby-forum.com/u/kingkadelfek)\
**Replies:** 4\
**Last updated:** [May 25, 2010, 9:25pm UTC](https://www.ruby-forum.com/t/looking-for-a-3d-physics-engine/189156 "2010-05-25T21:25:39Z")

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Chipmunk seems to be a pretty cool 2D physics engine, but does a 3D physics engine exist for Ruby ? I would like to develop an Alundra-like game : I developed a very simple 3D physics engine by myself som…

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## [Git push](https://www.ruby-forum.com/t/git-push/188762)

<div class="topic-metadata">

**Author:** [@raker\_t](https://www.ruby-forum.com/u/raker_t)\
**Replies:** 2\
**Last updated:** [May 25, 2010, 9:08pm UTC](https://www.ruby-forum.com/t/git-push/188762 "2010-05-25T21:08:05Z")

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I’ve done a push of the IronRuby sources, finally. This push includes some crazy changes to the layout, and will probably require some churn to the dev infrastructure (dev.bat, rakefiles, irtests, etc). Just so you kn…

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## [Redefine a Class?](https://www.ruby-forum.com/t/redefine-a-class/189131)

<div class="topic-metadata">

**Author:** [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Replies:** 11\
**Last updated:** [May 25, 2010, 6:51pm UTC](https://www.ruby-forum.com/t/redefine-a-class/189131 "2010-05-25T18:51:05Z")

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Currently this raises: superclass mismatch for class Soda (TypeError) How can I redefine a class? As a class is an object, if I remove all of it’s methods, attr & @'s could it be GC’d? (:wink: #----------------------…

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## [Jruby 1.4 -\> jruby 1.5](https://www.ruby-forum.com/t/jruby-1-4-jruby-1-5/189149)

<div class="topic-metadata">

**Author:** [@khzied](https://www.ruby-forum.com/u/khzied)\
**Replies:** 2\
**Last updated:** [May 25, 2010, 6:15pm UTC](https://www.ruby-forum.com/t/jruby-1-4-jruby-1-5/189149 "2010-05-25T18:15:23Z")

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Hi, i have an application done with jruby 1.4 and i want to migrate to jruby 1.5 i have pb with this code: \<% form\_tag ({:controller=\> "users", :action=\> "login"}) do %\> …

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## [Heads Up: RubyGems.org and universal-dotnet](https://www.ruby-forum.com/t/heads-up-rubygems-org-and-universal-dotnet/189136)

<div class="topic-metadata">

**Author:** [@hotgazpacho](https://www.ruby-forum.com/u/hotgazpacho)\
**Replies:** 3\
**Last updated:** [May 25, 2010, 5:56pm UTC](https://www.ruby-forum.com/t/heads-up-rubygems-org-and-universal-dotnet/189136 "2010-05-25T17:56:04Z")

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Just a heads up: If you do manage to upgrade your Ruby Gems version to 1.3.7 (as I demonstrate here: http://hotgazpacho.org/2010/05/ironruby-gem-update-system/), you will not be able to install gems that have a plat…

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## [Default encoding UTF 8?](https://www.ruby-forum.com/t/default-encoding-utf-8/189106)

<div class="topic-metadata">

**Author:** [@rogerdpack](https://www.ruby-forum.com/u/rogerdpack)\
**Replies:** 2\
**Last updated:** [May 25, 2010, 12:31pm UTC](https://www.ruby-forum.com/t/default-encoding-utf-8/189106 "2010-05-25T12:31:07Z")

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Is this expected? File.read(‘picture.jpg’).encoding =\> #Encoding:UTF-8 Encoding.default\_external =\> #Encoding:UTF-8 Shouldn’t default\_external be “ASCII-8BIT”? Who is setting my default\_external? Sorry a but…

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## [Need help to decode snmp string](https://www.ruby-forum.com/t/need-help-to-decode-snmp-string/189055)

<div class="topic-metadata">

**Author:** [@nti](https://www.ruby-forum.com/u/nti)\
**Replies:** 2\
**Last updated:** [May 25, 2010, 11:18am UTC](https://www.ruby-forum.com/t/need-help-to-decode-snmp-string/189055 "2010-05-25T11:18:32Z")

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Hi I’m a ruby newbie and need a little help. I think I’m wrong with class and instance methods? I can’t figure out how to do a decode a snmp output. I use the snmp library http://rubyforge.org/projects/snmplib/ My s…

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## [Lime wire pro Full very speed ...new Versiyon](https://www.ruby-forum.com/t/lime-wire-pro-full-very-speed-new-versiyon/189140)

<div class="topic-metadata">

**Author:** [@broun\_dej](https://www.ruby-forum.com/u/broun_dej)\
**Replies:** 0\
**Last updated:** [May 25, 2010, 10:15am UTC](https://www.ruby-forum.com/t/lime-wire-pro-full-very-speed-new-versiyon/189140 "2010-05-25T10:15:54Z")

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no pass

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## [\[Bug #3340\](Closed) ruby-style.el: ruby-style-version$B$G(Bargs-out-of-range](https://www.ruby-forum.com/t/bug-3340-closed-ruby-style-el-ruby-style-version-b-g-bargs-out-of-range/189138)

<div class="topic-metadata">

**Author:** [@Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/u/Kazuhiro_NISHIYAMA)\
**Replies:** 0\
**Last updated:** [May 25, 2010, 9:52am UTC](https://www.ruby-forum.com/t/bug-3340-closed-ruby-style-el-ruby-style-version-b-g-bargs-out-of-range/189138 "2010-05-25T09:52:29Z")

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e$B%A%1%C%He(B #3340 e$B$,99?7$5$l$^$7$?!#e(B (by Kazuhiro NISHIYAMA) e$B%9%F!\<%?%9e(B Opene$B$+$ie(BClosede$B$KJQ99e(B e$BC4Ev\<Te(B Nobuyoshi N.e$B$K%;%C%He(B r28010 http://redmine.ruby-lang.org/issues/show/3340

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## [\[Bug #3340\] ruby-style.el: ruby-style-version$B$G(Bargs-out-of-range](https://www.ruby-forum.com/t/bug-3340-ruby-style-el-ruby-style-version-b-g-bargs-out-of-range/189139)

<div class="topic-metadata">

**Author:** [@Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/u/Kazuhiro_NISHIYAMA)\
**Replies:** 0\
**Last updated:** [May 25, 2010, 9:26am UTC](https://www.ruby-forum.com/t/bug-3340-ruby-style-el-ruby-style-version-b-g-bargs-out-of-range/189139 "2010-05-25T09:26:09Z")

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Bug #3340: ruby-style.el: ruby-style-versione$B$Ge(Bargs-out-of-range http://redmine.ruby-lang.org/issues/show/3340 e$B5/I\<\<Te(B: Kazuhiro NISHIYAMA e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Low e$B%+%F%4%je(B: elisp ru…

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## [Call for Papers for 2010 Workshop on Scheme and Functional Programming](https://www.ruby-forum.com/t/call-for-papers-for-2010-workshop-on-scheme-and-functional-programming/189132)

<div class="topic-metadata">

**Author:** [@mrcfab3](https://www.ruby-forum.com/u/mrcfab3)\
**Replies:** 0\
**Last updated:** [May 25, 2010, 6:05am UTC](https://www.ruby-forum.com/t/call-for-papers-for-2010-workshop-on-scheme-and-functional-programming/189132 "2010-05-25T06:05:22Z")

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Please note that the deadline for submitting a paper to the Scheme workshop has been extended to Monday June 14, 2010 (3 weeks from now). More information is available on the workshop website at http://www.iro.umontre…

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## [Mkmf-lite 0.1.0](https://www.ruby-forum.com/t/mkmf-lite-0-1-0/189125)

<div class="topic-metadata">

**Author:** [@danielb](https://www.ruby-forum.com/u/danielb)\
**Replies:** 0\
**Last updated:** [May 25, 2010, 3:34am UTC](https://www.ruby-forum.com/t/mkmf-lite-0-1-0/189125 "2010-05-25T03:34:21Z")

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Greetings, I’m happy to announce the release of mkmf-lite 0.1.0. This is the initial release of this library. = What is it? A very lite version of mkmf. Unlike mkmf it is designed to be a library, rather than a Make…

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## [Stopping a specific DRb service](https://www.ruby-forum.com/t/stopping-a-specific-drb-service/189108)

<div class="topic-metadata">

**Author:** [@christoforever](https://www.ruby-forum.com/u/christoforever)\
**Replies:** 1\
**Last updated:** [May 25, 2010, 1:53am UTC](https://www.ruby-forum.com/t/stopping-a-specific-drb-service/189108 "2010-05-25T01:53:10Z")

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I have a DRb service which in turn spawns off multiple threads. Each of these threads interacts with other DRb services on different machines. To interact with these other DRb services I of course do something to the …

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## [Configlet 1.3.0 Released](https://www.ruby-forum.com/t/configlet-1-3-0-released/189116)

<div class="topic-metadata">

**Author:** [@johnnybutler7](https://www.ruby-forum.com/u/johnnybutler7)\
**Replies:** 0\
**Last updated:** [May 25, 2010, 12:47am UTC](https://www.ruby-forum.com/t/configlet-1-3-0-released/189116 "2010-05-25T00:47:27Z")

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configlet version 1.3.0 has been released! http://github.com/jbarnette/configlet A stupid simple wrapper for environment variables. This doesn’t deserve to be released as a gem, but I’m using it in two different pro…

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## [Get System Variable](https://www.ruby-forum.com/t/get-system-variable/189112)

<div class="topic-metadata">

**Author:** [@josh](https://www.ruby-forum.com/u/josh)\
**Replies:** 3\
**Last updated:** [May 24, 2010, 8:35pm UTC](https://www.ruby-forum.com/t/get-system-variable/189112 "2010-05-24T20:35:08Z")

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Does anyone know how I can get a system variable like JAVA\_HOME or JBOSS\_HOME from within a JRuby script? – Joshua S. Martin

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## [Internal string storage and Encoding::Converter#convpath](https://www.ruby-forum.com/t/internal-string-storage-and-encoding-converter-convpath/189013)

<div class="topic-metadata">

**Author:** [@ptyler](https://www.ruby-forum.com/u/ptyler)\
**Replies:** 2\
**Last updated:** [May 24, 2010, 7:00pm UTC](https://www.ruby-forum.com/t/internal-string-storage-and-encoding-converter-convpath/189013 "2010-05-24T19:00:18Z")

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Hi, everyone: In #rubyspec we were discussing whether the specifications are correct for Encoding::Converter’s convpath method. Since MRI uses UTF-8 internally, the #convpath method shows that it converts to UTF-8 for…

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## [WSDL with network credential](https://www.ruby-forum.com/t/wsdl-with-network-credential/189098)

<div class="topic-metadata">

**Author:** [@vetrivel](https://www.ruby-forum.com/u/vetrivel)\
**Replies:** 0\
**Last updated:** [May 24, 2010, 3:32pm UTC](https://www.ruby-forum.com/t/wsdl-with-network-credential/189098 "2010-05-24T15:32:21Z")

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Hai , I am using soap4r for web service . Ex: wsdl2ruby --wsdl wsdlfilename --type client . I got list of filenames . Without Authentication , I am able to access the web server and I got the response . But the …

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## [Test/rinda $B$G$N%9%l%C%I(B](https://www.ruby-forum.com/t/test-rinda-b-g-n-9-l-c-i-b/189075)

<div class="topic-metadata">

**Author:** [@Masaya\_TARUI](https://www.ruby-forum.com/u/Masaya_TARUI)\
**Replies:** 1\
**Last updated:** [May 24, 2010, 1:43pm UTC](https://www.ruby-forum.com/t/test-rinda-b-g-n-9-l-c-i-b/189075 "2010-05-24T13:43:37Z")

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e$BC.2H$G$9!#e(B (teste$B$Ne(B)Buge$B$G$O$J$$$h$&$J5$$,$9$k$7e(BFeaturee$B$+$H8@$o$l$k$HG:$^$7$$$N$G!"$=$N$^$^e(BMLe$B$KEj9F$7$^$9!#e(B test\_rindae$B$Ge(Btestcasee$BJ,$Ne(Bthreade$B$,@8@.$5$l$F$=$N$^$^;D$k$N$G$9$,!"@:?@…

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## [\[trunk:bug\] Psych raises an exception with diffrent name class](https://www.ruby-forum.com/t/trunk-bug-psych-raises-an-exception-with-diffrent-name-class/189078)

<div class="topic-metadata">

**Author:** [@nobu](https://www.ruby-forum.com/u/nobu)\
**Replies:** 0\
**Last updated:** [May 24, 2010, 5:27am UTC](https://www.ruby-forum.com/t/trunk-bug-psych-raises-an-exception-with-diffrent-name-class/189078 "2010-05-24T05:27:52Z")

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e$B$J$+$@$G$9!#e(B e$B0J2\<$N$h$&$K!"e(BFooe$B$,;XDj$5$l$F$$$k$N$K%a%C%;!\<%8$G$Oe(BStruct::Fooe$B$,e(B e$B$J$$$H$$$&$3$H$K$J$C$F$$$^$9!#e(B $ ./ruby -v -rpsych -ryaml -e ‘p((YAML.load("— !ruby/object:Foo\\nfoo: 1") res…

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## [Determine if IE has an open modal window win32ole](https://www.ruby-forum.com/t/determine-if-ie-has-an-open-modal-window-win32ole/188489)

<div class="topic-metadata">

**Author:** [@arti\_singh](https://www.ruby-forum.com/u/arti_singh)\
**Replies:** 1\
**Last updated:** [May 24, 2010, 4:36am UTC](https://www.ruby-forum.com/t/determine-if-ie-has-an-open-modal-window-win32ole/188489 "2010-05-24T04:36:22Z")

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Does anyone know how to determine if an Internet Explorer window has a modal window open using only win32ole? I tried looking in the modal\_window.rb and container.rb files in watir but I cant figure how to do this us…

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## [Cassandra and MongoDB?](https://www.ruby-forum.com/t/cassandra-and-mongodb/189036)

<div class="topic-metadata">

**Author:** [@Rajiv\_N](https://www.ruby-forum.com/u/Rajiv_N)\
**Replies:** 2\
**Last updated:** [May 24, 2010, 3:48am UTC](https://www.ruby-forum.com/t/cassandra-and-mongodb/189036 "2010-05-24T03:48:22Z")

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Any suggestions on what gem to install for Cassandra and MongoDB ? I will be using Jruby on Rails

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## [String decrement](https://www.ruby-forum.com/t/string-decrement/189074)

<div class="topic-metadata">

**Author:** [@Darryl\_Brown](https://www.ruby-forum.com/u/Darryl_Brown)\
**Replies:** 2\
**Last updated:** [May 24, 2010, 3:35am UTC](https://www.ruby-forum.com/t/string-decrement/189074 "2010-05-24T03:35:30Z")

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Hello All, It is possible to increment a string as follows: irb(main):001:0\> x = ‘a’ =\> “a” irb(main):002:0\> x.succ =\> “b” irb(main):003:0\> x.next =\> “b” Is there a method to decrement a string? Thanks, Darryl

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## [Ruby 1.8.7 and1.9.1 installation problems](https://www.ruby-forum.com/t/ruby-1-8-7-and1-9-1-installation-problems/189050)

<div class="topic-metadata">

**Author:** [@d\_v](https://www.ruby-forum.com/u/d_v)\
**Replies:** 3\
**Last updated:** [May 24, 2010, 3:34am UTC](https://www.ruby-forum.com/t/ruby-1-8-7-and1-9-1-installation-problems/189050 "2010-05-24T03:34:55Z")

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Hi all I’m running on my machine vindows vista home and ajust can not install ruby 1.8.7 or 1.9.1 on my machine. I used window-installer for this ruby release but after installing i can not install any gems like rail…

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## [Application Name / Process Name](https://www.ruby-forum.com/t/application-name-process-name/188996)

<div class="topic-metadata">

**Author:** [@superfly](https://www.ruby-forum.com/u/superfly)\
**Replies:** 5\
**Last updated:** [May 24, 2010, 1:47am UTC](https://www.ruby-forum.com/t/application-name-process-name/188996 "2010-05-24T01:47:14Z")

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Is there any way to set the application name or process name that appears in task manager for a program?

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## [\[Bug:trunk\] wrong error message from spawn with env](https://www.ruby-forum.com/t/bug-trunk-wrong-error-message-from-spawn-with-env/189073)

<div class="topic-metadata">

**Author:** [@nobu](https://www.ruby-forum.com/u/nobu)\
**Replies:** 1\
**Last updated:** [May 24, 2010, 1:17am UTC](https://www.ruby-forum.com/t/bug-trunk-wrong-error-message-from-spawn-with-env/189073 "2010-05-24T01:17:22Z")

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e$B$J$+$@$G$9!#e(B system({“FOO”=\>“BAR”}, “non/existing/command”) e$B$NNc30$,$\*$+$7$Je(B messagee$B$K$J$C$F$$$^$9!#@hF,$Ne(Benve$B$,e(BT\_HASHe$B$J$N$K$=$N$^$^e(B RSTRING\_PTRe$B$r;H$C$F$$$k$?$a$G$9!#e(B

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## [Installing IronRuby using RVM on Linux](https://www.ruby-forum.com/t/installing-ironruby-using-rvm-on-linux/188306)

<div class="topic-metadata">

**Author:** [@hotgazpacho](https://www.ruby-forum.com/u/hotgazpacho)\
**Replies:** 3\
**Last updated:** [May 23, 2010, 11:33pm UTC](https://www.ruby-forum.com/t/installing-ironruby-using-rvm-on-linux/188306 "2010-05-23T23:33:43Z")

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Has anyone successfully installed IronRuby using RVM on Linux? It seems that IronRubyh itself is installed, but I get an error during some post-install bit: Error running 'PATH=/home/will/.rvm/rubies/ironruby-1.0/b…

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## [Redhat is using ruby and rails in deltacloud effort](https://www.ruby-forum.com/t/redhat-is-using-ruby-and-rails-in-deltacloud-effort/189066)

<div class="topic-metadata">

**Author:** [@3nd3r](https://www.ruby-forum.com/u/3nd3r)\
**Replies:** 0\
**Last updated:** [May 23, 2010, 7:38pm UTC](https://www.ruby-forum.com/t/redhat-is-using-ruby-and-rails-in-deltacloud-effort/189066 "2010-05-23T19:38:27Z")

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There has been a lot of press about deltacloud but no mention that it is using ruby and rails underneath so I thought I would share the good news. http://www.internetnews.com/software/article.php/3883731/Red+Hat+Takin…

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## [Interactive Mode BASIC Interpreter (#232)](https://www.ruby-forum.com/t/interactive-mode-basic-interpreter-232/188232)

<div class="topic-metadata">

**Author:** [@danmcb](https://www.ruby-forum.com/u/danmcb)\
**Replies:** 4\
**Last updated:** [May 23, 2010, 7:11pm UTC](https://www.ruby-forum.com/t/interactive-mode-basic-interpreter-232/188232 "2010-05-23T19:11:23Z")

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\-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- The three rules of Ruby Q.: Please do not post any solutions or spoiler discussion for this quiz until 48 hours have elapsed from the time this m…

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## [\[Backport #1791\](Closed) r24205,r23960,r23892,r23871 $B$r%P%C%/%\]!\<%H$9$k(B](https://www.ruby-forum.com/t/backport-1791-closed-r24205-r23960-r23892-r23871-b-r-p-c-h-9-k-b/189059)

<div class="topic-metadata">

**Author:** [@Yuki\_S](https://www.ruby-forum.com/u/Yuki_S)\
**Replies:** 0\
**Last updated:** [May 23, 2010, 3:36pm UTC](https://www.ruby-forum.com/t/backport-1791-closed-r24205-r23960-r23892-r23871-b-r-p-c-h-9-k-b/189059 "2010-05-23T15:36:42Z")

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e$B%A%1%C%He(B #1791 e$B$,99?7$5$l$^$7$?!#e(B (by Yuki S.) e$B%9%F!\<%?%9e(B Opene$B$+$ie(BClosede$B$KJQ99e(B e$BM%@hEYe(B Highe$B$+$ie(BNormale$B$KJQ99e(B r24205, r23892e$B$r%^!\<%8$7$^$7$?!#e(B r23960e$B$K$D$$$F!“ITD…

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## [Eval, SAFE, and Sandbox](https://www.ruby-forum.com/t/eval-safe-and-sandbox/189002)

<div class="topic-metadata">

**Author:** [@sijomo](https://www.ruby-forum.com/u/sijomo)\
**Replies:** 5\
**Last updated:** [May 23, 2010, 2:44pm UTC](https://www.ruby-forum.com/t/eval-safe-and-sandbox/189002 "2010-05-23T14:44:37Z")

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Hello Ruby Forum. I am working on a personal project that will need people to be able to submit bits of Ruby code so that my project can run it (eval). I know there is a lot of danger in this and wonder if there are …

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