[#227503] open-uril ECONNREFUSED problem — Cyrus Ghalambor <cyrusg@...>

I'm working on a simple scraping tool and the open() method has suddenly

12 messages 2006/12/01

[#227527] Gateway is malfunctioning — "Trans" <transfire@...>

Someone recently mentioned missing posts. I just did a comparsion of

31 messages 2006/12/01

[#227574] Turtle Graphics (#104) — Ruby Quiz <james@...>

The three rules of Ruby Quiz:

37 messages 2006/12/01
[#227598] Re: [QUIZ] Turtle Graphics (#104) — "Harold Hausman" <hhausman@...> 2006/12/01

On 12/1/06, Ruby Quiz <james@grayproductions.net> wrote:

[#227606] Re: [QUIZ] Turtle Graphics (#104) — James Edward Gray II <james@...> 2006/12/01

On Dec 1, 2006, at 9:42 AM, Harold Hausman wrote:

[#227620] Re: [QUIZ] Turtle Graphics (#104) — "Harold Hausman" <hhausman@...> 2006/12/01

On 12/2/06, James Edward Gray II <james@grayproductions.net> wrote:

[#227661] Re: [QUIZ] Turtle Graphics (#104) — Daniel Martin <martin@...> 2006/12/01

"Harold Hausman" <hhausman@gmail.com> writes:

[#227670] Re: [QUIZ] Turtle Graphics (#104) — James Edward Gray II <james@...> 2006/12/01

On Dec 1, 2006, at 3:44 PM, Daniel Martin wrote:

[#227682] Re: tk.rb warning in Turtle Graphics (#104) — Edwin Fine <efine145-nospam01@...> 2006/12/02

/usr/local/lib/ruby/site_ruby/1.8/tk.rb:1187: warning: instance variable

[#227713] Re: tk.rb warning in Turtle Graphics (#104) — Morton Goldberg <m_goldberg@...> 2006/12/02

On Dec 1, 2006, at 7:22 PM, Edwin Fine wrote:

[#227630] Simple iteration in a function problem — Blake Miller <blakeage@...>

i'm trying to do this, and I'm stuck

34 messages 2006/12/01

[#227702] calculations on lists of numbers — ara.t.howard@...

38 messages 2006/12/02

[#227739] openssl error - ubuntu — "Chad" <carimura@...>

Help!

27 messages 2006/12/02
[#227741] Re: openssl error - ubuntu — Jose francisco Gonzalez carmona <pgonzalez@...> 2006/12/02

[#227787] Re: openssl error - ubuntu — "Chad" <carimura@...> 2006/12/02

Absolutely... I'm not a linux expert though, but I have a feeling

[#227822] Re: openssl error - ubuntu — "Chad" <carimura@...> 2006/12/02

I finally figured it out.

[#305614] Re: openssl error - ubuntu — James George <james@...> 2008/06/19

Thanks a lot pal, it worked perfectly for me too. I had the same openssl

[#305645] Re: openssl error - ubuntu — Marc Heiler <shevegen@...> 2008/06/19

So much for distribution's package managers making your life easier,

[#227801] comma separating output from array.to_s — "jansenh" <henning.jansen@...>

hi comp.lang.ruby

18 messages 2006/12/02

[#227819] Factory pattern, abstract base class — "Daniel Berger" <djberg96@...>

Hi all,

16 messages 2006/12/02

[#227839] Why does a test fail when I predicted it's exception class? — "Richard" <RichardDummyMailbox58407@...>

Hi,

10 messages 2006/12/03

[#227857] File.size() returning negative for large files ???? — "Greg Hauptmann" <greg.hauptmann.ruby@...>

Hi,

13 messages 2006/12/03
[#227859] Re: File.size() returning negative for large files ???? — Damjan Rems <d_rems@...> 2006/12/03

Greg Hauptmann wrote:

[#227860] I'm a new member — "Quỳnh Trần" <quynh_khanh2002@...>

Hi evrybody!

16 messages 2006/12/03

[#227873] Simple and stuppid bug (can anyone find it?) — "paul" <pjvleeuwen@...>

Hi all,

13 messages 2006/12/03

[#227979] method overloading like Java? — Daniel Finnie <danfinnie@...>

In Java, you could write the following code:

12 messages 2006/12/04

[#228031] Question about Ruby philosophy — Zouplaz <user@...>

Hello, when I compare Ruby to Java there is something I don't understand .

46 messages 2006/12/04
[#228134] Re: Question about Ruby philosophy — "Max Muermann" <ruby@...> 2006/12/05

On 12/4/06, Zouplaz <user@domain.invalid> wrote:

[#228047] replace delimiter in unicode encdoded file — "ciapecki" <ciapecki@...>

Is there a way in ruby to:

20 messages 2006/12/04

[#228127] How do I catch a missing method on a passed block? — "J2M" <james2mccarthy@...>

I would like to invoke method_missing on baz in this code;

34 messages 2006/12/04
[#228211] Re: How do I catch a missing method on a passed block? — Daniel Schierbeck <daniel.schierbeck@...> 2006/12/05

On Tue, 2006-12-05 at 08:04 +0900, J2M wrote:

[#228213] Re: How do I catch a missing method on a passed block? — Logan Capaldo <logancapaldo@...> 2006/12/05

On Tue, Dec 05, 2006 at 11:54:06PM +0900, Daniel Schierbeck wrote:

[#228266] md5 function in Ruby — Denys Yakhnenko <dyakhnenko@...>

Hello all:

14 messages 2006/12/05

[#228273] Lisp comprehensions => SQL — "Victor \"Zverok\" Shepelev" <vshepelev@...>

Hi all.

24 messages 2006/12/05

[#228352] Newbie: working with a text file and converting to xml — Adam Teale <ateale@...>

hi Guys,

12 messages 2006/12/06

[#228379] Calling super in overwritten methods — Joerg Diekmann <joergd@...>

Hi - not sure if this is possible - but it feels like it could be with

12 messages 2006/12/06

[#228380] join_with — "Martin DeMello" <martindemello@...>

While golfing with the hex_ip thread, I realised that map takes no

33 messages 2006/12/06
[#229469] map taking an argument (was: Re: join_with) — dblack@... 2006/12/13

Hi --

[#228422] invasive parameters as method mode variables — "Trans" <transfire@...>

Working on a method where I would like one part of it's operations to

15 messages 2006/12/06

[#228605] Show your support for Rubinius! — "Sam Smoot" <ssmoot@...>

(I hope you don't mind a bit of cross-posting, but seeing as how the

17 messages 2006/12/07
[#228613] Re: Show your support for Rubinius! — "Tim Pease" <tim.pease@...> 2006/12/07

On 12/7/06, Sam Smoot <ssmoot@gmail.com> wrote:

[#228618] Re: Show your support for Rubinius! — "Brian Mitchell" <binary42@...> 2006/12/07

On 12/7/06, Tim Pease <tim.pease@gmail.com> wrote:

[#228620] Re: Show your support for Rubinius! — "Wilson Bilkovich" <wilsonb@...> 2006/12/07

On 12/7/06, Brian Mitchell <binary42@gmail.com> wrote:

[#228622] Re: Show your support for Rubinius! — benjohn@... 2006/12/07

I'd like to know more about Rubinius, but all the info I've got on it

[#228628] Array changing after concat function — WKC CCC <wai-kee.chung@...>

Can someone shed some light on this problem. In the example, I am

17 messages 2006/12/07

[#228716] Am I missing something about BER-compressed integer? — "Francis Cianfrocca" <garbagecat10@...>

All:

12 messages 2006/12/08

[#228738] Tournament Matchups (#105) — Ruby Quiz <james@...>

The three rules of Ruby Quiz:

23 messages 2006/12/08

[#228875] Ruby Core + Php FrontEnd (open) — Flaab Mrlinux <flaab_mrlinux@...>

Good afternoon everyone.

13 messages 2006/12/09

[#228945] format problem — chen li <chen_li3@...>

Hi all,

23 messages 2006/12/10

[#229119] else inside rescue is useless? — "cap" <capitain@...>

http://www.awprofessional.com/bookstore/product.asp?isbn=0672328844&rl=1

20 messages 2006/12/11

[#229122] Newbie questions — Dav Jones <kakaze@...21.com>

Hello, I'm quite new to this whole Ruby malarky and I'm having some real

15 messages 2006/12/11

[#229244] Re: Ruby for Kids? — "Jeff_M" <JeffMcGrath@...>

18 messages 2006/12/12

[#229350] C => Ruby plus TCP serialization using Marshal.dump/load — "Nathan Baker" <nathanb@...>

Hey,

12 messages 2006/12/12

[#229351] - Bible 1.0.1 - A bible reference parsing and text retrieval tool — "Justin Bailey" <jgbailey@...>

All,

13 messages 2006/12/12

[#229397] Restricted capture in Regexp — benjohn@...

Is there a regexp feature that lets me require something to be present

16 messages 2006/12/13

[#229398] How to improve my Ruby skills ? — Zouplaz <user@...>

Hello there... Like many others I've discovered Ruby when I started

11 messages 2006/12/13

[#229467] Net::Ldap question — Eduardo Y瘻ez Parareda <eduardo.yanezNOSPAM@...>

Hello, I'm trying this plugin in a rails app and think I need some help.

13 messages 2006/12/13
[#229486] Re: Net::Ldap question — Eduardo Y瘻ez Parareda <eduardo.yanezNOSPAM@...> 2006/12/13

Hehe, sorry again. I've reading documentation of this library and already know

[#229514] Re: Net::Ldap question — "Francis Cianfrocca" <garbagecat10@...> 2006/12/13

On 12/13/06, Eduardo Y瘻ez Parareda <eduardo.yanezNOSPAM@nospamgmail.com> wrote:

[#229511] Random idea - private, blocks, constants — "Daniel Berger" <djberg96@...>

Hi all,

14 messages 2006/12/13

[#229598] CTI Corporativo auto responses — "Daniel Berger" <djberg96@...>

All,

14 messages 2006/12/14

[#229600] Swap contents in two files — Christopher Latif <christopherl@...>

I have two files, I want to swap the contents of the files in my

17 messages 2006/12/14

[#229763] Chess960 (#106) — Ruby Quiz <james@...>

The three rules of Ruby Quiz:

33 messages 2006/12/15

[#229883] ZenTest autotest problems — Zouplaz <user@...>

Hello, I have big troubles using the latest autotest version (3.4.2)

11 messages 2006/12/16
[#229985] Re: ZenTest autotest problems — Eric Hodel <drbrain@...7.net> 2006/12/17

On Dec 16, 2006, at 01:40, Zouplaz wrote:

[#229990] Re: ZenTest autotest problems — Zouplaz <user@...> 2006/12/17

le 17/12/2006 07:43, Eric Hodel nous a dit:

[#230118] Re: ZenTest autotest problems — Eric Hodel <drbrain@...7.net> 2006/12/18

On Dec 17, 2006, at 24:55, Zouplaz wrote:

[#229906] Just some Ruby language ideas, comments wanted. — Daniel Finnie <danfinnie@...>

My first Ruby language idea is simple. Instead of having every method

13 messages 2006/12/16

[#229917] does Ruby generate WINDOWS and dialog boxes? — "Ken Laninga" <personal@...>

I just heard about Ruby and it looks fascinating. I see lots of code being

60 messages 2006/12/16
[#229922] Re: does Ruby generate WINDOWS and dialog boxes? — David Vallner <david@...> 2006/12/16

Ken Laninga wrote:

[#229939] Re: does Ruby generate WINDOWS and dialog boxes? — Joel VanderWerf <vjoel@...> 2006/12/16

David Vallner wrote:

[#229961] Re: does Ruby generate WINDOWS and dialog boxes? — Suraj Kurapati <snk@...> 2006/12/17

Joel VanderWerf wrote:

[#229967] Re: does Ruby generate WINDOWS and dialog boxes? — "Richard" <RichardDummyMailbox58407@...> 2006/12/17

[#229968] Re: does Ruby generate WINDOWS and dialog boxes? — David Vallner <david@...> 2006/12/17

Richard wrote:

[#229973] Re: does Ruby generate WINDOWS and dialog boxes? — "Richard" <RichardDummyMailbox58407@...> 2006/12/17

[#230007] Re: does Ruby generate WINDOWS and dialog boxes? — David Vallner <david@...> 2006/12/17

Richard wrote:

[#230065] Re: does Ruby generate WINDOWS and dialog boxes? — "Richard" <RichardDummyMailbox58407@...> 2006/12/17

> Odds are it Just Won't unless you only

[#230073] Re: does Ruby generate WINDOWS and dialog boxes? — David Vallner <david@...> 2006/12/17

Richard wrote:

[#230127] Re: does Ruby generate WINDOWS and dialog boxes? — "Richard" <RichardDummyMailbox58407@...> 2006/12/18

Disclaimer: All my assertions about Ruby, Rails, WEBrick and MySQL are

[#230008] Grabbing data off a webpage — Bil Kleb <Bil.Kleb@...>

OK, so I haven't done this in years.

12 messages 2006/12/17

[#230011] Ruby IDE — <adaworks@...>

I am new to Ruby, but I have used a lot of other

24 messages 2006/12/17

[#230089] Question regarding threads and I/O — "Michael W. Ryder" <_mwryder@...>

I am a veteran programmer but still am trying to learn Ruby. In the

14 messages 2006/12/17
[#230094] Re: Question regarding threads and I/O — Logan Capaldo <logancapaldo@...> 2006/12/18

On Mon, Dec 18, 2006 at 08:55:10AM +0900, Michael W. Ryder wrote:

[#230147] Problem installing Ruby/Tk — Christopher Latif <christopherl@...>

Installed Linux

14 messages 2006/12/18

[#230256] where have all the experienced users gone? — "Trans" <transfire@...>

seems like there's been a steady drop off in experienced ruby users on

63 messages 2006/12/19
[#230284] Re: [OT] where have all the experienced users gone? — Eric Hodel <drbrain@...7.net> 2006/12/19

On Dec 18, 2006, at 18:50, Trans wrote:

[#230327] Re: [OT] where have all the experienced users gone? — Jeremy Wells <jwells@...> 2006/12/19

Eric Hodel wrote:

[#230332] Re: [OT] where have all the experienced users gone? — "Robert Dober" <robert.dober@...> 2006/12/19

On 12/19/06, Jeremy Wells <jwells@servalsystems.co.uk> wrote:

[#230350] Re: [OT] where have all the experienced users gone? — "Jeremy McAnally" <jeremymcanally@...> 2006/12/19

I think it's also important that we all realize that we use mailing

[#230423] Re: [OT] where have all the experienced users gone? — James Edward Gray II <james@...> 2006/12/19

On Dec 19, 2006, at 7:52 AM, Jeremy McAnally wrote:

[#230322] Re: where have all the experienced users gone? — "Robert Dober" <robert.dober@...> 2006/12/19

On 12/19/06, Trans <transfire@gmail.com> wrote:

[#230507] Re: where have all the experienced users gone? — "Simon Strandgaard" <neoneye@...> 2006/12/20

On 12/19/06, Robert Dober <robert.dober@gmail.com> wrote:

[#230514] Re: where have all the experienced users gone? — "Robert Dober" <robert.dober@...> 2006/12/20

On 12/20/06, Simon Strandgaard <neoneye@gmail.com> wrote:

[#230295] string of strings... — Josselin <josselin@...>

I got an array of id's :

13 messages 2006/12/19

[#230328] compare two objects without take its ID in consideration — Lobosque Lucas <floyd_u2@...>

Is there a way to compare two objects without take its ID in

17 messages 2006/12/19

[#230450] ruby gotchas — Mark Guzman <segfault@...>

I've written up some ruby gotchas that have come up while using ruby.

16 messages 2006/12/19

[#230548] tricky sort for happy visitors of Paris — Josselin <josselin@...>

all happy visitors of Paris know about the 'arrondissement', an

20 messages 2006/12/20

[#230588] openssl on Red Hat not installed — Hueen Hueen <hueen@...>

So I'm one of the unlucky ones that don't have openssl properly

17 messages 2006/12/20

[#230602] Regexp Question: Checking for [joe][/joe] pairs — Joe Peck <joe@...>

Hey, I've got some text in @x and want there to be at least 1 and at

21 messages 2006/12/20

[#230648] Who's maintaining log4r? — jeffz_2002@...

Does anyone know who's maintaining the log4r project? The website at

29 messages 2006/12/20

[#230650] Searching Stings with Arrays? — Phil Cooperking <phil@...>

Hi, I've been having a little problem with this. most of my ruby is from

14 messages 2006/12/20

[#230755] Remove Ruby 1.8.5? — Christopher Latif <christopherl@...>

How do I remove Ruby 1.8.5 from linux? I have built it from source.

20 messages 2006/12/21
[#230874] Re: Remove Ruby 1.8.5? — David Vallner <david@...> 2006/12/21

M. Edward (Ed) Borasky wrote:

[#230879] Re: Remove Ruby 1.8.5? — Vincent Fourmond <vincent.fourmond@9online.fr> 2006/12/21

David Vallner wrote:

[#230792] Method named ***(other) — Julien Gaugaz <gaugaz@...3s.de>

Hi!

15 messages 2006/12/21
[#230799] Re: Method named ***(other) — "Vidar Hokstad" <vidar.hokstad@...> 2006/12/21

[#230829] Ruby's Trac Alternative — Bil Kleb <Bil.Kleb@...>

So I'm trying to use Trac for our FUN3D development,

27 messages 2006/12/21

[#230853] External Ruby Script in HTML — Naked Sushi <runfaster@...>

This probably has a simple answer, but I don't know it.

17 messages 2006/12/21

[#230869] Ruby replacement for ab? — Mat Schaffer <schapht@...>

So I've been hunting for a way to stress test a web application and

17 messages 2006/12/21

[#230983] Merry (slightly early) Christmas! Mr. Neighborly's Humble Little Ruby Book is free! — "Jeremy McAnally" <jeremymcanally@...>

Hello all,

15 messages 2006/12/22

[#231056] Question: Downloading files with open(-uri)? — Mariano Kamp <mariano.kamp@...>

Hi,

16 messages 2006/12/23

[#231072] Help with a ruby idiom — Tim Waters <timgwaters@...>

From the O'Reilly Cookbook there is code that keeps call functions in a

16 messages 2006/12/23

[#231181] Hpricot ri and rdoc documentation — "bbiker" <renard@...>

I have gem installed Hpricot-0.4 (mswin32) but no ri documentation or

15 messages 2006/12/24

[#231198] A problem about replacing a string in a template. — Kuang Dong <kuangdong@...>

File 1: test.tpl

13 messages 2006/12/25

[#231277] Newby - how to round up floating point number? — Dermot Moynihan <der_moyn@...>

Hi guys

14 messages 2006/12/26

[#231303] Hash with two identical keys? — "Trans" <transfire@...>

>From Facets' multiton.rb (which is primarily Floran Franks' work), I'm

15 messages 2006/12/26

[#231341] Peculiar Behavior for a Newby to Undertstand — Charles A Gray <smgspices@...>

I created a class for prime numbers as so:

14 messages 2006/12/27

[#231377] How to do TDD in Ruby? — mekondelta <Chris.Melikian@...>

15 messages 2006/12/27

[#231385] newbie with a weird technical problem (@ least I think it's weird) — "will" <will.graduate@...>

Yep, as the post title implies, I'm a newbie. Being a pragmatic newbie

10 messages 2006/12/27

[#231436] Handling of arbitrary length arrays in arguments to printf builtin — Nick Pavey <nick@...>

Hi Folks,

13 messages 2006/12/27
[#231437] Re: Handling of arbitrary length arrays in arguments to printf builtin — Timothy Hunter <TimHunter@...> 2006/12/27

Nick Pavey wrote:

[#231462] Higher-Order Procedures Tutorial (long) — "Nate Murray" <jashmenn@...>

Hey Guys,

16 messages 2006/12/28

[#231494] Strip is not stripping trailing whitespace — Taylor Strait <taylorstrait@...>

I have files with city names which have one or two trailing whitespaces:

14 messages 2006/12/28

[#231595] What we have here is a retard pretending to be a computer scientist — atbusbook@...

http://www.iam.unibe.ch/~scg/Archive/Papers/Scha04bOOEncapsulation.pdf

14 messages 2006/12/29
[#231602] Paper on strong Object Oriented Encapsulation (Was: some subject with needless insults) — Eric Hodel <drbrain@...7.net> 2006/12/29

On Dec 28, 2006, at 16:05, atbusbook@aol.com wrote:

[#231610] Re: Paper on strong Object Oriented Encapsulation (Was: some subject with needless insults) — "Jeff" <cohen.jeff@...> 2006/12/29

Eric Hodel wrote:

[#231686] how to properly format data when using TCPSocket.send() — Nathan Taylor <onebitcipher@...>

It would be greatly appreciated if someone would clue me in to what I am

12 messages 2006/12/29

[#231726] Methods validating their arguments: good or bad? — Michael Judge <mjudge@...>

15 messages 2006/12/29

[#231763] how to lex javascript for an assert_js system? — Phlip <phlip2005@...>

Ruboids:

14 messages 2006/12/30

[#231785] Proposal to create a new mailing list — Daniel Schierbeck <daniel.schierbeck@...>

Hello fellow Rubyphilics!

31 messages 2006/12/30

[#231801] Little Things — "Trans" <transfire@...>

I was a bit surprised about Matz mention of the little things in his

164 messages 2006/12/30
[#231848] Re: Little Things — Daniel Schierbeck <daniel.schierbeck@...> 2006/12/30

I mostly agree, with some of the additions of course being more

[#231882] Re: Little Things — dblack@... 2006/12/31

Hi --

[#231888] Re: Little Things — "Trans" <transfire@...> 2006/12/31

[#231893] Re: Little Things — Devin Mullins <twifkak@...> 2006/12/31

Trans wrote:

[#231898] Re: Little Things — "Rob Sanheim" <rsanheim@...> 2006/12/31

On 12/31/06, Devin Mullins <twifkak@comcast.net> wrote:

[#232438] Re: Little Things — Paulo Kh <paulo.koch@...> 2007/01/03

On 2006/12/31, at 07:38, Rob Sanheim wrote:

[#232439] Re: Little Things — ara.t.howard@... 2007/01/03

On Thu, 4 Jan 2007, [ISO-8859-1] Paulo Kh wrote:

[#232449] Re: Little Things — "Trans" <transfire@...> 2007/01/03

[#232451] Re: Little Things — ara.t.howard@... 2007/01/03

On Thu, 4 Jan 2007, Trans wrote:

[#232496] Re: Little Things — "Trans" <transfire@...> 2007/01/04

[#232501] Re: Little Things — ara.t.howard@... 2007/01/04

On Thu, 4 Jan 2007, Trans wrote:

[#232502] Re: Little Things — dblack@... 2007/01/04

Hi --

[#232503] Re: Little Things — ara.t.howard@... 2007/01/04

On Thu, 4 Jan 2007 dblack@wobblini.net wrote:

[#232544] Re: Little Things — Devin Mullins <twifkak@...> 2007/01/04

ara.t.howard@noaa.gov wrote:

[#232547] Re: Little Things — "Trans" <transfire@...> 2007/01/04

[#232571] Re: Little Things — Devin Mullins <twifkak@...> 2007/01/04

Trans wrote:

[#232587] Re: Little Things — "Trans" <transfire@...> 2007/01/04

[#232602] Re: Little Things — ara.t.howard@... 2007/01/04

On Thu, 4 Jan 2007, Trans wrote:

[#232615] Re: Little Things — "Trans" <transfire@...> 2007/01/04

[#232616] Re: Little Things — dblack@... 2007/01/04

Hi --

[#232619] Re: Little Things — ara.t.howard@... 2007/01/04

On Fri, 5 Jan 2007 dblack@wobblini.net wrote:

[#232626] Re: Little Things — dblack@... 2007/01/04

Hi --

[#232631] Re: Little Things — ara.t.howard@... 2007/01/04

On Fri, 5 Jan 2007 dblack@wobblini.net wrote:

[#232638] Re: Little Things — "Chris Carter" <cdcarter@...> 2007/01/04

On 1/4/07, ara.t.howard@noaa.gov <ara.t.howard@noaa.gov> wrote:

[#232650] Pervasive Methods [was: Little Things] — "Trans" <transfire@...> 2007/01/04

[#232652] Re: Pervasive Methods [was: Little Things] — ara.t.howard@... 2007/01/04

On Fri, 5 Jan 2007, Trans wrote:

[#232653] Re: Pervasive Methods [was: Little Things] — "Tim Pease" <tim.pease@...> 2007/01/04

On 1/4/07, ara.t.howard@noaa.gov <ara.t.howard@noaa.gov> wrote:

[#232656] Re: Pervasive Methods [was: Little Things] — ara.t.howard@... 2007/01/04

On Fri, 5 Jan 2007, Tim Pease wrote:

[#232657] Re: Pervasive Methods [was: Little Things] — "Trans" <transfire@...> 2007/01/04

[#232659] Re: Pervasive Methods [was: Little Things] — ara.t.howard@... 2007/01/04

On Fri, 5 Jan 2007, Trans wrote:

[#231932] Re: Little Things — Yukihiro Matsumoto <matz@...> 2006/12/31

Hi,

[#231821] Newbie: It works, how can I make it better? — Jay Bornhoft <jbornhoft@...>

I wrote this little prog giving the user two choices.

13 messages 2006/12/30

[#231938] Re: Status of Cardinal (was Re: Proposal to create a new mailing list) — "Francis Cianfrocca" <garbagecat10@...>

I'm not jumping back into this in a big way, since it's obvious

11 messages 2006/12/31

[#231941] Mini-RCR: Extra Argument for Array#join — James Edward Gray II <james@...>

I've been looking at the to_sentence() method in Rails. It's

17 messages 2006/12/31

[#231946] Open source credit card processing in ruby — snacktime <snacktime@...>

Just recently I have the option to open source a credit card

12 messages 2006/12/31
[#231956] Re: Open source credit card processing in ruby — "Francis Cianfrocca" <garbagecat10@...> 2006/12/31

On 12/31/06, M. Edward (Ed) Borasky <znmeb@cesmail.net> wrote:

[#231951] Re: Status of Cardinal (was Re: Proposal to create a new mailing list) — Charles Oliver Nutter <charles.nutter@...>

Robert Dober wrote:

9 messages 2006/12/31

Re: [QUIZ] Tournament Matchups (#105)

From: "Pedro Fortuny Ayuso" <pfortuny@...>
Date: 2006-12-11 09:59:30 UTC
List: ruby-talk #229102
Hi,

I am new to the quizzes and also more or less new to ruby. I would
appreciate any comments on my "unrubyness", and thanks in advance. I prefer
1<<n to 2**n although I guess they are implemented similarly.

I am attaching my solution.
Let n be the number of participants and k be the power of 2 following n (or
n if it is a power of 2). Let p=log2(k).
The tournament (in my code) is understood as a binary tree *of "expected"
matches* starting with the final (expected to be [1,2] the best against the
second-best). Assume we have computed all the matches up to level i-1 (i=2
are the semi-finals, i=3 quarter-finals...), which are r=2**(i-1) matches:
m_1, ..., m_r (notice I start counting at 1). Let us compute the i-level
matches, which are 2**i, call them n_1,...,n_2r . The algorithm is:
Let  l= (l_1,...,l_2r) = (m_11, m_12, m_21, m_22, ..., m_r2) the list of
players at level i-1 ordered as the matches say (i.e., in the semi-finals:
(1,4,2,5)

Let INDEX = 2**(i)+1
Let j = 1
STEP:
 Match n_j = [l_j, OP_j] where l_j + OP_j = INDEX
 j++
 GOTO STEP unless j > 2r
return (n_1,...,n2r)

Actually, one can do a better ordering (which puts 1 at the top and 2 at the
bottom of every tree), which is what I have implemented.
In my code, the complete tournament is kept in memory as a list of
1 + 2 +... +2**p
matches. Different levels (i) can be distinguished by starting to count at
2**(i-1)-1

As you will see, the code looks somewhat hackish because there are too many
2** and off-by-one counts. However, I think this preserves the "natural"
structure of the data without using strong stuff like nested lists of
different lengths, etc... (And it is obviously more challenging to program
this way
:)

If you create a Tournament with a number, you get the numbers as the labels.
If you create it with a list, it is understood as an ordered (according to
rank) list of the participants. Labels (and emptpy spaces) are then given
the maximum length of the names.

Example:
  one|
     |-----|
 four|     |
           |-----
three|     |
     |-----|
  two|

(notice the "nice" 1-at the top 2-at the bottom ordering).


-- 
Pedro Fortuny Ayuso
C/Capuchinos 14, 1. 47006 Valladolid. SPAIN
http://pfortuny.sdf-eu.org

Attachments (1)

tournament_matchups.rb (3.76 KB, text/x-ruby)
include Math
require 'rational'

class Tournament
  
  attr_reader :participants, :levels, :total_matchups, :tree, :stringed, :string
 
  def initialize(h)  
    # parameter checking:
    case h
    when Fixnum
      raise TypeError, "The number of participants must be > 1" unless h>1
      @participants = ("#{1}".."#{h}").to_a
    when Array
      raise TypeError, "The number of participants must be > 1" unless h.length > 1
      @participants = h.map {|x| x.to_s}
    else
      raise TypeError, "Parameter must be an Array or a Fixnum"
    end 
    
    # basic initialization
    @p_number = @participants.length
    @levels = @p_number.log2
    @levels = (1<<(@levels) == @p_number) ? @levels -1 : @levels
    @total_matchups = 1<<(@levels)
    (@p_number..(2*@total_matchups - 1)).each do |x| @participants<<nil end
    
    # setup the whole valuation tree: We already know there is ONE match at least
    @tree = [[1,2]]
    (0..@levels).each do |level|
      k = (1<<level) - 1
      nodes = @tree[-(k+1)/2,(k+1)/2].inject([]) {|s,e| s+e}
      # this counter is probably spurious in Ruby?
      i = 0
      nodes.each do |index|
        opponent = ((2*(k+1)-index+1) > @p_number) ? nil : (2*(k+1) - index+1)
        # hack to get the tree look "symmetrical" in the 1st and 2nd players
        if i < k
          @tree<< [index, opponent]
        else  
          @tree << [opponent, index]
        end 
        i += 1
      end 
    end 
  end 
  
  # pairings (i.e. with NUMBERS) (possibly with nil opponent) **after** k rounds
  def pairings(k = 0)
    return [] unless k < (@levels + 1)
    @tree[( ((1<<(@levels - k)) - 1)..((1<<(@levels - k+1)) - 2) )]
  end 
    
  # **expected** true **matches** (i.e. with names) **after** k rounds.
  # If there are tails, parinings [1,nil] give NO matches. This is "reality"
  def matches(k = 0)
    return [] unless k < (@levels + 1)
    pairings(k).find_all {|x| not(x.member?(nil))}.inject([]) do |s,e|
      pair = []
      e.each do |team|
        if team.nil? then pair<<nil else pair<<@participants[team-1] end
      end 
      s<<pair
    end 
  end 
  
  # to_s: build up a quite nice string detailing the tournament matches
  # extremely hackish!
  def to_s
    return @string unless @string.nil?
    @string = ""
    height = 4 * @total_matchups
    label = "-" * (@participants.map {|x| (x.nil? && 0) || x.length}).inject(1) {|s,e| s > e ? s : e}
    width = (label.length)*(@levels + 1) + 2*@levels
    @stringed = Array.new(height) { Array.new(width).fill(" ") }
    # step 0 is special: put all the labels
    (0..(@total_matchups-1)).each do |item|
      put_label(0,4*item,@participants[(pairings()[item][0]||0) - 1].to_s,label.length)
      put_label(0,4*(item)+2,@participants[(pairings()[item][1]||0) - 1].to_s,label.length)
    end
    # iterative steps
    (0..(@levels+1)).each do |level|
      step = (1<<level) - 1
      (0..( (1<<(@levels - level)) - 1) ).each do |pair| 
        join_pair(level,pair,step,label.length)
        put_label((level+1)*(label.length+1),2.rpower(level) + 2.rpower(level+2)*pair+step,label)
      end 
    end 
    @stringed.each {|x| @string += (x.join("") + "\n") }
    return @string
  end 

  # private methods. Used by to_s, mainly
  private  
  
  def join_pair(level,pair,step,width)
    horizontal = ((level+1) * (width + 1))
    start = 4*pair*(1<<level)+step
    end_ = start + (1<<(level+1))
    (start..end_).each do |y|
      @stringed[y][horizontal-1]= "|"
    end 
  end 

  def put_label(x,y,label,max_length = label.length)
    (0..(label.length-1)).each do |i|
      @stringed[y][max_length - label.length + x + i] = label[i].chr 
    end 
  end 
  
end 
  

class Fixnum
  
  # Too used not to have it
  def log2
    i = 0
    value = self
    while(value > 1) 
      value >>= 1
      i += 1
    end 
    i
  end 
  
end 

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