# Ruby

**URL:** https://www.ruby-forum.com/c/ruby/7.md?page=721

[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:** 722

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## [Array Number of Leaves](https://www.ruby-forum.com/t/array-number-of-leaves/177896)

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**Author:** [@koko](https://www.ruby-forum.com/u/koko)\
**Replies:** 6\
**Last updated:** [October 26, 2009, 3:09pm UTC](https://www.ruby-forum.com/t/array-number-of-leaves/177896 "2009-10-26T15:09:16Z")

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Dear Rubyist, I want to count array list \[1,2,3,\[4\],5\] —\> # 5 leaves but I always get sum\_of\_array. Where did I do wrong? def array\_leave1 # sum\_of\_array? res = 0 self.each{|elem| if elem.kind\_of?(Array) res += e…

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## [File Operation](https://www.ruby-forum.com/t/file-operation/177897)

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**Author:** [@subhas123](https://www.ruby-forum.com/u/subhas123)\
**Replies:** 2\
**Last updated:** [October 26, 2009, 2:52pm UTC](https://www.ruby-forum.com/t/file-operation/177897 "2009-10-26T14:52:19Z")

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Can you tell me if I can move to a perticular Line number like ‘C’?

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## [Given a String instance, how to create a different but equivalent one](https://www.ruby-forum.com/t/given-a-string-instance-how-to-create-a-different-but-equivalent-one/177877)

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**Author:** [@RichardOnRails](https://www.ruby-forum.com/u/RichardOnRails)\
**Replies:** 2\
**Last updated:** [October 26, 2009, 2:45pm UTC](https://www.ruby-forum.com/t/given-a-string-instance-how-to-create-a-different-but-equivalent-one/177877 "2009-10-26T14:45:51Z")

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Given a String instance, how to create a different but equivalent one The code below shows the incorrect way and two correct ways to create a second string instance that equal to a given string instance. Q1: Are the…

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## [Using SHA1 Digested Passwords for SSH connection](https://www.ruby-forum.com/t/using-sha1-digested-passwords-for-ssh-connection/177736)

<div class="topic-metadata">

**Author:** [@joemanfoo](https://www.ruby-forum.com/u/joemanfoo)\
**Replies:** 4\
**Last updated:** [October 26, 2009, 2:22pm UTC](https://www.ruby-forum.com/t/using-sha1-digested-passwords-for-ssh-connection/177736 "2009-10-26T14:22:43Z")

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Hello all. For testing, I have been inputting some various user credentials into a database. The passwords are hashed (digested) with the SHA1 algorithm. I have a script set up to read these passwords, and use them f…

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## [Windows buildserver test run](https://www.ruby-forum.com/t/windows-buildserver-test-run/177901)

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**Author:** [@barby](https://www.ruby-forum.com/u/barby)\
**Replies:** 0\
**Last updated:** [October 26, 2009, 2:13pm UTC](https://www.ruby-forum.com/t/windows-buildserver-test-run/177901 "2009-10-26T14:13:39Z")

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Hi, I just kicked off a new build on the buildserver but I think we should come up with a better way of using tracing the debug assert statements in a ci build. Currently they are displayed using a message box. Last…

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## [How to pass data in webrick servlets](https://www.ruby-forum.com/t/how-to-pass-data-in-webrick-servlets/158896)

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**Author:** [@wrapster](https://www.ruby-forum.com/u/wrapster)\
**Replies:** 1\
**Last updated:** [October 26, 2009, 12:22pm UTC](https://www.ruby-forum.com/t/how-to-pass-data-in-webrick-servlets/158896 "2009-10-26T12:22:44Z")

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Hi all, I am a newbie to servlet programming using webrick… Was wondering how to accept data from a form and do necessary processing… To start with i wrote a sample servlet that accepts a name and prints “welcome ” …

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## [Events handling](https://www.ruby-forum.com/t/events-handling/177887)

<div class="topic-metadata">

**Author:** [@barby](https://www.ruby-forum.com/u/barby)\
**Replies:** 0\
**Last updated:** [October 26, 2009, 10:13am UTC](https://www.ruby-forum.com/t/events-handling/177887 "2009-10-26T10:13:37Z")

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Hi I’m trying the following code: public class ExposingWarrior{ private readonly int \_id; public event EventHandler\<EventArgs\> OnIsExposedChanged; public bool IsExposed {get; set; } public void Explode(){ …

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## [Ruby interpreter error on Windows Vista](https://www.ruby-forum.com/t/ruby-interpreter-error-on-windows-vista/177871)

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**Author:** [@Schalk\_N](https://www.ruby-forum.com/u/Schalk_N)\
**Replies:** 2\
**Last updated:** [October 26, 2009, 10:00am UTC](https://www.ruby-forum.com/t/ruby-interpreter-error-on-windows-vista/177871 "2009-10-26T10:00:45Z")

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Hi there everyone, I have had a stable dev environment for some time now, well until my laptop was stolen :frowning: I am in the process of getting everything set-up again but I am facing a problem with the Ruby inter…

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## [Iirb broken?](https://www.ruby-forum.com/t/iirb-broken/177885)

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**Author:** [@barby](https://www.ruby-forum.com/u/barby)\
**Replies:** 0\
**Last updated:** [October 26, 2009, 9:44am UTC](https://www.ruby-forum.com/t/iirb-broken/177885 "2009-10-26T09:44:56Z")

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Hi As soon as I want to do something slightly more useful with iirb it won’t work When I execute iirb it’s not being very helpful at all on mono: IronRuby.Libraries:0:in GetExecutable': infocmp -C (Errno::ENOENT)…

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## [Pik 0.2.3 Released](https://www.ruby-forum.com/t/pik-0-2-3-released/177881)

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**Author:** [@gordon321](https://www.ruby-forum.com/u/gordon321)\
**Replies:** 0\
**Last updated:** [October 26, 2009, 7:51am UTC](https://www.ruby-forum.com/t/pik-0-2-3-released/177881 "2009-10-26T07:51:22Z")

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pik version 0.2.3 has been released! \<Homepage: GitHub - vertiginous/pik: Ruby version manager for Windows\> \<Mailing List: http://groups.google.com/group/discuss\_pik\> \<Rubyforge: http://rubyforge.org/projects/pik/\> \<…

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## [Www.world2015.org (u can c all pages)](https://www.ruby-forum.com/t/www-world2015-org-u-can-c-all-pages/177880)

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**Author:** [@www.world2015.orgSw](https://www.ruby-forum.com/u/www.world2015.orgSw)\
**Replies:** 0\
**Last updated:** [October 26, 2009, 7:20am UTC](https://www.ruby-forum.com/t/www-world2015-org-u-can-c-all-pages/177880 "2009-10-26T07:20:56Z")

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Human Race Creation, Primeval Persons, Civilizations, Aristocracy & Democracy What Next?.. WORLD2015. World2015:No money, No Power, No Politics, No Castes, No Religions, Human Beings are one. Whole world is One. G…

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## [How to unset or properly set GEM\_HOME in a war with warbler/glassfish?](https://www.ruby-forum.com/t/how-to-unset-or-properly-set-gem-home-in-a-war-with-warbler-glassfish/177804)

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**Author:** [@superwick](https://www.ruby-forum.com/u/superwick)\
**Replies:** 2\
**Last updated:** [October 26, 2009, 7:20am UTC](https://www.ruby-forum.com/t/how-to-unset-or-properly-set-gem-home-in-a-war-with-warbler-glassfish/177804 "2009-10-26T07:20:56Z")

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Hello, We found this thread \[1\], but we have the opposite request. In our WAR, GEM\_HOME seems to always be set to the system gem home. We don’t want this, because we don’t want any system gems to pollute our load p…

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## [Something's wrong with ObjectSpace](https://www.ruby-forum.com/t/somethings-wrong-with-objectspace/177863)

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**Author:** [@shayfriedman](https://www.ruby-forum.com/u/shayfriedman)\
**Replies:** 3\
**Last updated:** [October 26, 2009, 7:08am UTC](https://www.ruby-forum.com/t/somethings-wrong-with-objectspace/177863 "2009-10-26T07:08:38Z")

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Hey, The next REPL session works fine in MRI but in IR it throws an error: str = “sss” =\> “sss” ObjectSpace.each\_object(String) { |x| puts x } d:\\IronRuby\\GitRepository2\\ironruby\\Merlin\\Main\\Languages\\Ruby\\Li…

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## [Ruby-1.9, sqlite3 and qt4 on windows](https://www.ruby-forum.com/t/ruby-1-9-sqlite3-and-qt4-on-windows/177715)

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**Author:** [@Martin\_DeMello](https://www.ruby-forum.com/u/Martin_DeMello)\
**Replies:** 8\
**Last updated:** [October 26, 2009, 7:01am UTC](https://www.ruby-forum.com/t/ruby-1-9-sqlite3-and-qt4-on-windows/177715 "2009-10-26T07:01:01Z")

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I’m thinking of developing an app with ruby 1.9, sqlite3 and qt4 which I’d like to distribute on windows, ideally as a packaged executable, though if it works against the one-click installer that’d be fine too. Anyone…

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## [Event based web framework with ruby, have any?](https://www.ruby-forum.com/t/event-based-web-framework-with-ruby-have-any/177873)

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**Author:** [@di3go](https://www.ruby-forum.com/u/di3go)\
**Replies:** 2\
**Last updated:** [October 26, 2009, 5:16am UTC](https://www.ruby-forum.com/t/event-based-web-framework-with-ruby-have-any/177873 "2009-10-26T05:16:18Z")

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Hi guys! Im questioning my self about a event based web framework for ruby, have anyone!? just like de microsoft asp.net I like ruby alot, but i also like the way asp.net works, with events, onclick do this, onsomeot…

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## [\[Bug #2263\] typo in man/ruby.1](https://www.ruby-forum.com/t/bug-2263-typo-in-man-ruby-1/177825)

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**Author:** [@Narihiro\_N](https://www.ruby-forum.com/u/Narihiro_N)\
**Replies:** 10\
**Last updated:** [October 26, 2009, 4:44am UTC](https://www.ruby-forum.com/t/bug-2263-typo-in-man-ruby-1/177825 "2009-10-26T04:44:05Z")

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Bug #2263: typo in man/ruby.1 http://redmine.ruby-lang.org/issues/show/2263 e$B5/I\<\<Te(B: Narihiro N. e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal ruby -v: ruby 1.8.7 (2008-08-11 patchlevel 72) \[i486-linux\] narie$B$…

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## [UGG boots Chestnut Genuine Australian Tall](https://www.ruby-forum.com/t/ugg-boots-chestnut-genuine-australian-tall/177874)

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**Author:** [@jordad](https://www.ruby-forum.com/u/jordad)\
**Replies:** 0\
**Last updated:** [October 26, 2009, 3:25am UTC](https://www.ruby-forum.com/t/ugg-boots-chestnut-genuine-australian-tall/177874 "2009-10-26T03:25:40Z")

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UGG boots Chestnut Genuine Australian Tall welcome to shopping topcommend.cn

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## [Using id2ref for anything?](https://www.ruby-forum.com/t/using-id2ref-for-anything/177865)

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**Author:** [@headius](https://www.ruby-forum.com/u/headius)\
**Replies:** 6\
**Last updated:** [October 26, 2009, 1:19am UTC](https://www.ruby-forum.com/t/using-id2ref-for-anything/177865 "2009-10-26T01:19:50Z")

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ObjectSpace.\_id2ref is another of those peculiar methods, an artifact of a particular implementation which, due to its lack of a copying/compacting garbage collector, can always locate in memory an object given its “i…

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## [FFI madness! Rubygame 2.6, Ruby-SDL-FFI 0.1, and Nice-FFI 0.2 released](https://www.ruby-forum.com/t/ffi-madness-rubygame-2-6-ruby-sdl-ffi-0-1-and-nice-ffi-0-2-released/177864)

<div class="topic-metadata">

**Author:** [@amin1426](https://www.ruby-forum.com/u/amin1426)\
**Replies:** 0\
**Last updated:** [October 25, 2009, 9:39pm UTC](https://www.ruby-forum.com/t/ffi-madness-rubygame-2-6-ruby-sdl-ffi-0-1-and-nice-ffi-0-2-released/177864 "2009-10-25T21:39:10Z")

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It’s FFI madness! That’s foreign function interface, i.e. accessing compiled C libraries directly from Ruby. I’ve got three library releases to announce, all of them filled with FFI awesomeness. First up is Rubygame 2…

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## [VM help](https://www.ruby-forum.com/t/vm-help/177828)

<div class="topic-metadata">

**Author:** [@Alexander\_Cohen](https://www.ruby-forum.com/u/Alexander_Cohen)\
**Replies:** 4\
**Last updated:** [October 25, 2009, 8:51pm UTC](https://www.ruby-forum.com/t/vm-help/177828 "2009-10-25T20:51:27Z")

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Hello, Can anyone out there point me to some tutorial or examples on how to use the Ruby VM? Most specifically, how to separate the VM into multiple contexts with their own set of global objects and maybe how to use …

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## [Nokogiri usage](https://www.ruby-forum.com/t/nokogiri-usage/177848)

<div class="topic-metadata">

**Author:** [@fipa](https://www.ruby-forum.com/u/fipa)\
**Replies:** 1\
**Last updated:** [October 25, 2009, 7:14pm UTC](https://www.ruby-forum.com/t/nokogiri-usage/177848 "2009-10-25T19:14:35Z")

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Hi, In one of my Rails app, I have a content attribute that hosts some html code. I want to parse this content and replace tags by something else. I used to do Nokogiri::HTML(content), and then do my parsing, then r…

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## [Help with SQL -\> associations (Multiple JOINs)](https://www.ruby-forum.com/t/help-with-sql-associations-multiple-joins/177831)

<div class="topic-metadata">

**Author:** [@glex](https://www.ruby-forum.com/u/glex)\
**Replies:** 2\
**Last updated:** [October 25, 2009, 5:45pm UTC](https://www.ruby-forum.com/t/help-with-sql-associations-multiple-joins/177831 "2009-10-25T17:45:50Z")

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Is there a way to express this with associations? @songs = Song.find\_by\_sql(%Q{ SELECT songs.\*, song\_playlist\_relationships.playlist\_id FROM songs INNER JOIN song\_playlist\_relationships ON song…

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## [UnMarshal without source file](https://www.ruby-forum.com/t/unmarshal-without-source-file/177856)

<div class="topic-metadata">

**Author:** [@Manny\_Calavera](https://www.ruby-forum.com/u/Manny_Calavera)\
**Replies:** 0\
**Last updated:** [October 25, 2009, 4:00pm UTC](https://www.ruby-forum.com/t/unmarshal-without-source-file/177856 "2009-10-25T16:00:51Z")

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I’m looking for a STANDARD methods to unmarshal a class istance without have source file. Thanx

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## [Monitoring domains with god?](https://www.ruby-forum.com/t/monitoring-domains-with-god/177854)

<div class="topic-metadata">

**Author:** [@softf5ajivanet](https://www.ruby-forum.com/u/softf5ajivanet)\
**Replies:** 0\
**Last updated:** [October 25, 2009, 3:09pm UTC](https://www.ruby-forum.com/t/monitoring-domains-with-god/177854 "2009-10-25T15:09:03Z")

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Looking at god, is it possible to use it to monior php sites or domains and then send off an email when it receives a 404 ? http://god.rubyforge.org/

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## [\[Bug #621\] When to call Class#inherited](https://www.ruby-forum.com/t/bug-621-when-to-call-class-inherited/150406)

<div class="topic-metadata">

**Author:** [@Shyouhei\_U](https://www.ruby-forum.com/u/Shyouhei_U)\
**Replies:** 6\
**Last updated:** [October 25, 2009, 12:17pm UTC](https://www.ruby-forum.com/t/bug-621-when-to-call-class-inherited/150406 "2009-10-25T12:17:52Z")

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Bug #621: When to call Class#inherited http://redmine.ruby-lang.org/issues/show/621 e$B5/I\<\<Te(B: Shyouhei U. e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal e$BC4Ev\<Te(B: Koichi Sasada, e$B%+%F%4%je(B: YARV 1.8e$B$N%P…

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## [Erb:how to make less %?](https://www.ruby-forum.com/t/erb-how-to-make-less/177842)

<div class="topic-metadata">

**Author:** [@haoqi](https://www.ruby-forum.com/u/haoqi)\
**Replies:** 2\
**Last updated:** [October 25, 2009, 11:28am UTC](https://www.ruby-forum.com/t/erb-how-to-make-less/177842 "2009-10-25T11:28:52Z")

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demo.html.erb \<% 3.times do%\> \<%=rand%\> \<%end%\> it has 6 ‘%’! how to make less ‘%’ like this? \<% 3.times do puts rand end %\>

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## [Gem cleanup error](https://www.ruby-forum.com/t/gem-cleanup-error/177843)

<div class="topic-metadata">

**Author:** [@Rajinder\_Y](https://www.ruby-forum.com/u/Rajinder_Y)\
**Replies:** 1\
**Last updated:** [October 25, 2009, 7:12am UTC](https://www.ruby-forum.com/t/gem-cleanup-error/177843 "2009-10-25T07:12:19Z")

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When I run cleanup I get an error yadav@K64x2:$ sudo gem cleanup Cleaning up installed gems… Attempting to uninstall rack-1.0.0 ERROR: While executing gem … (Gem::InstallError) Unknown gem rack = 1.0.0 How can I f…

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## [BDB::Fatal error from WordNet](https://www.ruby-forum.com/t/bdb-fatal-error-from-wordnet/177562)

<div class="topic-metadata">

**Author:** [@jfoxny](https://www.ruby-forum.com/u/jfoxny)\
**Replies:** 1\
**Last updated:** [October 25, 2009, 4:21am UTC](https://www.ruby-forum.com/t/bdb-fatal-error-from-wordnet/177562 "2009-10-25T04:21:23Z")

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I’ve got a ruby script that calls Ruby-WordNet which in turns calls DBD. I’m getting an error from DBD that looks like this (there’s some debug output from wordnet’s lexicon.rb that I turned on): $ sh run\_everything.s…

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## [C extension: "malloc" and "rb\_raise"](https://www.ruby-forum.com/t/c-extension-malloc-and-rb-raise/177807)

<div class="topic-metadata">

**Author:** [@ISSSSaki\_Baz\_C](https://www.ruby-forum.com/u/ISSSSaki_Baz_C)\
**Replies:** 8\
**Last updated:** [October 25, 2009, 12:33am UTC](https://www.ruby-forum.com/t/c-extension-malloc-and-rb-raise/177807 "2009-10-25T00:33:27Z")

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Hi, if I use “malloc” in a Ruby C function and then call to “rb\_raise” (so the program exists), will the allocated memory be released? (if not I get a memory leak). Perhaps Ruby havs a garbage collector for C? Than…

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## [Ruby 1.9?](https://www.ruby-forum.com/t/ruby-1-9/177816)

<div class="topic-metadata">

**Author:** [@msan](https://www.ruby-forum.com/u/msan)\
**Replies:** 3\
**Last updated:** [October 24, 2009, 5:58pm UTC](https://www.ruby-forum.com/t/ruby-1-9/177816 "2009-10-24T17:58:20Z")

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Is ready for production applications? I’ve installed the latest jruby version, 1.4RC2, but under directory lib/ruby/gems I see a 1.8 directory, there isn’t 1.9. Can I use 1.9? Sorry for my bad english. To unsubscri…

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