[#321488] new here on ruby-talk — Richard <rich.japh@...>
hi, I am very interested in learning Ruby and wanted to say hi to the
[#321489] Form Controls for User interface in a Database Application — Warren Dulnuan <rr3800@...>
Is there an IDE for Ruby where i can drag n drop Grid Controls, COmbo
[#321506] really beginner question — rocksonchan <rocksonchan@...>
hi all, as shows on the subject, it is a really really beginner
Hi!
[#321519] Control Structures — Trent Jones <1337indi@...>
G'day all, I'm new to Ruby, been studying Software Engineering at
> G'day all, I'm new to Ruby, been studying Software Engineering at
Hi Jakub,
> Hi Jakub,
Like many languages, there are lots of ways to do things. Using a block
[#321530] How do you find an item that satisfies multiple conditions? — Bob Sanders <small.business.strategy@...>
I know that to find an item that satisfies one condition, it's this:
[#321538] Explanation on some code — Michael Albers <registraties@...>
Hi,
[#321546] Another Ruby Book (and interview) — "pat eyler" <pat.eyler@...>
Most ruby-talk readers probably know that a Ruby edition
On Mon, Dec 01, 2008 at 11:33:22PM +0900, pat eyler wrote:
On Thu, Dec 4, 2008 at 10:13 AM, Chad Perrin <perrin@apotheon.com> wrote:
[#321562] crate 0.1.1 Released — Jeremy Hinegardner <jeremy@...>
I'm pleased to announce that Crate, the project I spoke on at RubyConf
[#321574] Regular Expressions — Mmcolli00 Mom <mmc_collins@...>
Hi everyone.
On Mon, Dec 1, 2008 at 1:08 PM, Mmcolli00 Mom <mmc_collins@yahoo.com> wrote:
On Mon, Dec 1, 2008 at 1:51 PM, Kyle Schmitt <kyleaschmitt@gmail.com> wrote:
[#321601] Adventures in Optimization... or why CONST frozen is Good — John Carter <john.carter@...>
...or when a language design level optimization is a pessimization.
[#321607] while loop in a here documents — equinox <aditya15417@...>
I have a here documents of something like this:
[#321610] Different between symbol and string ? — Chris Li <libo5426@...>
What is exactly different between symbol and string ? Symbol has never
[#321630] Array deletion — jazzez ravi <jazzezravi@...>
Hi All,
jazzez ravi wrote:
[#321638] How to install sqlite3 in linux? — Zhao Yi <youhaodeyi@...>
I used this command to install sqlite3:
[#321641] Memory usage with blocks — "John Ky" <newhoggy@...>
Hi all,
[#321652] Ruby Database Application — Warren Dulnuan <rr3800@...>
Can someone upload a database application on Ruby? preferably an
[#321655] Ruby cgi script — ZippySwish <fischer.jan@...>
I put "script.rb" into the cgi-bin folder of my webhost, but nothing's
Well, telnet can't get a connection for some reason, but what I mean
[#321670] opening/reading a text file - how do u use .find method? — Mmcolli00 Mom <mmc_collins@...>
Here I am creating a text file, writing to the text file and then
[#321679] dynamic programming — Frank Tao <dalfrank@...>
# I have a class Adam
[#321681] Substring with "..." — Jose Antonio Parra <josparbar@...>
Hi!
On Tue, Dec 2, 2008 at 12:00 PM, Jose Antonio Parra <josparbar@gmail.com> wrote:
[#321693] Why is Ruby 1.9 not called Ruby 2.0? — The Higgs bozo <higgs.bozo@...>
[#321711] How do you read text file by creating a Hash in a script? — Mmcolli00 Mom <mmc_collins@...>
This is some example contents of my text file: logzT09.txt
Mmcolli00 Mom wrote:
yes I meant to read it into an Hash. Can you give me a snippet? I just
[#321731] RubyForge not being updated? — "Avdi Grimm" <avdi@...>
Anyone know what's up with RubyForge? I submitted a new project three
[#321733] FFI 0.2.0 — "Wayne Meissner" <wmeissner@...>
Greetings Rubyists.
* Wayne Meissner <wmeissner@gmail.com> [2008-12-03 10:09:03 +0900]:
[#321743] Stack level too deep — "John Ky" <newhoggy@...>
Hi,
[#321750] rubyscript2exe problem — Jim Mahony <mewshew@...>
Hi all,
The Higgs bozo wrote:
* Jim Mahony <mewshew@hotmail.com> [2008-12-03 17:35:40 +0900]:
[#321761] Question about op. overloading — Maarten Mortier <maarten.mortier@...>
I have:
[#321780] ipaddr and invalid ipv4 addresses — "Martin DeMello" <martindemello@...>
What's going on here?
[#321794] string with \ — Vrone Ve <vrone@...>
[#321814] HookR version 1.0.0 released — "Avdi Grimm" <avdi@...>
HookR version 1.0.0
[#321818] Ruby and legacy Java Applications — Joe Wfel <joe@...>
What are some good ways to integrate Ruby into legacy Java
[#321827] 1.8.7 segfault — Izit Izit <portie@...>
Hi,
[#321836] Ruby Serial Port for windows — Riad Riad <riad.gaffar@...>
Hi,
> Any one has a functional snippet of a rs232 or serial port
[#321857] rescuing a failed %x[] call? — "Kyle Schmitt" <kyleaschmitt@...>
I know it should be streightforward, but I'm not finding the docs anywhere...
On Wed, Dec 3, 2008 at 6:02 PM, Kyle Schmitt <kyleaschmitt@gmail.com> wrote:
On Wed, Dec 3, 2008 at 9:28 PM, Avdi Grimm <avdi@avdi.org> wrote:
[#321865] reg exp — Hai anh Le <lhanh@...>
I have a problem with regexp. I have some document like :
[#321881] 'and' keyword? — "list. rb" <list.rb@...>
Because puts("hi") yields nil, the second item never gets called:
[#321887] A question about ruby-doc — Zhao Yi <youhaodeyi@...>
I installed ruby-doc-stdlib-0.10.1 in my computer and open the index
I often find myself not connected to the Internet and want to read
[#321893] Nigh Stikipad — Trans <transfire@...>
Does anyone know anything about what happened to Stikipad? This was a
[#321904] JRuby 1.1.6RC1 Released — Thomas Enebo <Thomas.Enebo@...>
The JRuby community is pleased to announce the release of JRuby 1.1.6RC1!
[#321920] Force a program to stop if runtime exceeds given duration — Aldric Giacomoni <"aldric[remove]"@...>
Any idea how to do that?
require 'timeout'
On Thu, Dec 4, 2008 at 10:04 AM, Aldric Giacomoni <"aldric[remove]"@
On Thu, Dec 4, 2008 at 10:32 AM, Glen Holcomb <damnbigman@gmail.com> wrote:
Glen Holcomb wrote:
See http://www.ruby-doc.org/core-1.9/classes/Process.html#M003012
Everybody automatically assumes that rubyists are using Linux - sadly,
On Fri, Dec 5, 2008 at 6:59 AM, Aldric Giacomoni <"aldric[remove]"@
On Fri, Dec 5, 2008 at 7:08 AM, Glen Holcomb <damnbigman@gmail.com> wrote:
[#321967] Are the docs correct for spaceship <=> in String? — thomas.c.mitchell@...
Hello all,
[#321969] Are there any Ruby Technical Writers here? — Vito Fontaine <vito.matro@...>
I am a beginner with Ruby who was interested in writing some programs.
On 04.12.2008 22:43, Vito Fontaine wrote:
Robert Klemme wrote:
Vito Fontaine wrote:
On Fri, 5 Dec 2008, Vito Fontaine wrote:
David A. Black wrote:
Plus, I have just started a not-for-profit organization. It's goals are
P.S. - I plan on implementing J-Ruby into the program as well but
[#321995] Data extraction using Scrubyt — Vipin Vm <vipin@...>
Hi All,
[#322000] database design — Adam Akhtar <adamtemporary@...>
im new to databases and im currently using a flatfile db called
[#322014] Proximity searches in Ruby — Stuart Clarke <stuart.clarke1986@...>
Does Ruby have the ability to perform proximity searches on data. For
No proximity searches with 1.8.. you would need a full fledged text
On 06.12.2008 00:29, Ilan Berci wrote:
On Sat, Dec 6, 2008 at 1:18 PM, Robert Klemme
> File::read("test.data").scan %r{Hello.{0,10}World}im
On Sat, Dec 6, 2008 at 2:06 PM, Michael Fellinger <m.fellinger@gmail.com> wrote:
[#322036] Ruby 1.8.7 Lambas: syntax and scoping issue (are these bugs? — Charlton Wang <charlton.wang@...>
I'm seeing two odd behaviours with using lambdas:
[#322043] AnsiString (#185) — Matthew Moss <matt@...>
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
[#322054] Ruby vs SELF — Marc Heiler <shevegen@...>
What are the main differences between Ruby and SELF in day-to-day work
On Fri, Dec 5, 2008 at 11:57 PM, Marc Heiler <shevegen@linuxmail.org> wrote:
On Sat, Dec 6, 2008 at 9:21 PM, Robert Dober <robert.dober@gmail.com> wrote:
[#322073] shoes 2 (raisins) is go. — _why <why@...>
Salutations and hi.
On Sat, Dec 6, 2008 at 2:05 PM, _why <why@ruby-lang.org> wrote:
[#322090] Gruff labels — Rick Jones <ukbell@...>
I have been working on this code for a few days and can't seem to figure
[#322095] Remove me from the mailing list — "Chas O'Riley" <ceoriley@...>
CEO'Riley
[#322100] Proposing an arbitrary precision class building on BigDecimal and being derived from Numeric — ulrichmutze@...
Dear Ruby commuity,
> this note deals with arbitrary precision arithmetics and Ruby
[#322117] Very Basic Question — Gilman Gunn <gilmangunn@...>
Hi all,
[#322124] class vrs. method — Tom Cloyd <tomcloyd@...>
I've been thinking about this question for days, and have yet to come up
[#322139] newbie's question: getting parameters given to hello.rb file — "L. Maiwald" <neorus@...>
hello,
[#322144] creating a DSL: adding random methods — dc <dc.pikkle@...>
hi -
[#322181] A quetion about ruby string — Zhao Yi <youhaodeyi@...>
How can I change a string to regular expression? Take this method for an
[#322187] UTF char issue — Abirami Selvam <abirami.janu@...>
While reading the data from the text file,the special characters has not
[#322205] string to hash — Jens -- <jens@...>
Hi All,
[#322212] libxml-ruby is too crazy — "Sebastian W." <swittenk@...>
Okay, if any libxml-ruby developers read this list, I sincerely hope you
[#322217] Beginner question about attributes — Scott Peterson <swp@...>
I don't understand why my model (attached) isn't working.
On Dec 8, 3:31m, Scott Peterson <s...@mho.com> wrote:
Yossef Mendelssohn wrote:
Scott Peterson wrote:
[#322219] Kernel.exec won't find a file that File.expand_path can — Fritz Anderson <fritza@...>
I'm doing a fork/exec on a .rb file in the same directory as the parent
On Mon, Dec 8, 2008 at 11:23 PM, Fritz Anderson <fritza@uchicago.edu> wrote:
[#322235] Ruby QT Hiding the mouse — Michael Pope <map7@...>
I'm currently trying to build an application using Ruby with QT which
[#322242] pop3 body email — Erika <geagneske83@...>
Hi,
[#322245] getting by without a server — Adam Akhtar <adamtemporary@...>
ive made a simple budgeting script that takes receipts (with the
[#322246] undefined method `parse' for Time:Class Error — Srikanth Jeeva <sri.jjhero@...>
hi,,.
Srikanth Jeeva <sri.jjhero@gmail.com> writes:
Just to add my tuppence.... the same applies to Date.parse (amongst
[#322256] problem with array ... object inside disappear — MR Damien <mr.damien@...>
Hi dudes,
[#322260] Help on algorythm — Helder Oliveira <hrpoliveira@...>
Guys i have been trying to make this algorythm but with no sucess, can
On Tue, Dec 9, 2008 at 7:44 AM, Helder Oliveira <hrpoliveira@gmail.com>wrote:
On Tue, Dec 9, 2008 at 9:56 AM, Glen Holcomb <damnbigman@gmail.com> wrote:
Gregory Brown wrote:
On Tue, Dec 9, 2008 at 4:24 PM, Chris Lowis <chris.lowis@gmail.com> wrote:
[#322272] Ruby Test Frameworks — Michael Furmaniuk <mfurmaniuk@...>
I'm looking for a Ruby Framework that I can use to aid in testing a
[#322283] Completely new programmer lacks direction — Cameron Carroll <ubernoobs@...>
Hi. I recently picked up a beginning ruby book, having only lightly
Cameron Carroll wrote:
[#322285] compare 2 text files - check for difference - Please help — Mmcolli00 Mom <mmc_collins@...>
Hi. I want to take two files that are supposed to be identical, then ook
Mmcolli00 Mom wrote:
require 'diff/lcs/Array'
Mmcolli00 Mom wrote:
> I want to be able to say that 2.txt contained '3' therefore the file was
I just used this on my txt files however, I can't get the script to
Mmcolli00 Mom wrote:
Are you wanting to get the actual differences, or just know if they are
[#322288] Way to many calls to Dir#[] — Tj Holowaychuk <tj@...>
I cannot seem to debug this issue... my entire library does not call
Tj Holowaychuk wrote:
Thanks! that is helping, its all from rubygems
[#322302] Problem parseing a XML - PullParser — "Sebastian (syepes)" <sebastian@...>
Hi all,
On 9 d馗. 08, at 21:17, Sebastian (syepes) wrote:
Luc Heinrich wrote:
Hi,
Bob Hutchison wrote:
[#322329] want to search value in nested arrays and return other value — Joao Silva <rubyforum@...>
Hi.
[#322345] chars method — George George <george.githinji@...>
Any ideas why this code returns :
George George wrote:
[#322360] Standardizing FFI based wrappers — Luc Heinrich <luc@...>
Greetings,
Luc Heinrich wrote:
[#322371] want only the working hours(9am-5pm) between two dates — Srikanth Jeeva <sri.jjhero@...>
want only the working hours(9am-5pm) between two dates, weekends should
[#322379] Displaying long floats without scientific notation — sa 125 <s_ayalon@...>
Hello -
[#322395] A bug in c:\InstantRails\ruby\lib\ruby\1.8\net\http.rb? — Zhoran Tvalve <ztuaev@...>
I can not make working a line of code:
[#322400] P shows object values, so can u put P and value in txt? — Mmcolli00 Mom <mmc_collins@...>
This is something that I have been working on using diff/lcs. I am
On 10.12.2008 18:05, Mmcolli00 Mom wrote:
I tried putting this but it did not work.
By 'ri p', it was meant that you do that on the command-line.
[#322417] why Hash corrupts 'key' object ? — Dmitry Perfilyev <dmitry1976@...>
Hi, I have next script:
[#322418] Folder actions — Einar Magn俍 Boson <einarmagnus@...>
Hi all,
[#322424] copy txt file - only copies 1/3 of the file - what happened? — Mmcolli00 Mom <mmc_collins@...>
File.open('oldFile.txt', 'r') do |f1| #file contains XML type data
[#322431] to get help from inside irb console — Sijo Kg <sijo@...>
Hi
[#322455] Out of range on Dates beyond 2038/01/19 — Fernando Guillen <fguillen.mail@...>
Hi people,
On Thu, Dec 11, 2008 at 6:58 AM, Fernando Guillen
Err, I should have mentioned, many UNIX and UNIX like systems have
Thank you people for the information.
From: Fernando Guillen [mailto:fguillen.mail@gmail.com]
[#322457] All possible letter combinations? — Teme Rosi <the_beaf@...>
Hi, im new to ruby. It is smiliar to perl. Can anyone convert this
[#322464] Q: FFI and C++? — Jeremy Henty <onepoint@...>
If I want to wrap a C++ library using FFI, can it cope with the name
Because of the complexity that C++ adds, I doubt that any feasible FFI
[#322479] User Prompt as a pop up - not IRB/command line? — Mmcolli00 Mom <mmc_collins@...>
Has anyone heard of Ruby containing a popup window prompt for users? I
On Thu, Dec 11, 2008 at 10:33 PM, Mmcolli00 Mom <mmc_collins@yahoo.com> wrote:
[#322502] Rhodes - a microframework for building native mobile device applications — Adam <adam@...>
The Rhodes framework is an open source Ruby-based platform for
[#322504] How to open url in firefox — Raju Alluri <avr_1@...>
Hi,
[#322516] Invoking Ruby code from a low-level language? — Alex Fulton <a.fulton@...>
Hi, my sincerest apologies if this question has already been answered
On Fri, Dec 12, 2008 at 07:59:39AM +0900, Alex Fulton wrote:
Wow, thanks for the replies everyone. This has given me a lot of
On Wed, Dec 17, 2008 at 05:22:10AM +0900, Alex Fulton wrote:
[#322529] parallel method return value — Louis-Philippe <default@...>
Hi all,
> and with a method:
Louis-Philippe wrote:
Hi guys,
Thanks Matthew,
[#322535] How to Count pages in a word document — Talib Hussain <talibhn@...>
Hi,
[#322543] How to get contents of word file page by page — Talib Hussain <talibhn@...>
Hi,
2008/12/12 Talib Hussain <talibhn@gmail.com>:
Heesob Park wrote:
You must be trying to solve a problem (word document convertation to
[#322549] how do I extract the ID name of a Div and its content? — Hans Wurst <mahatma.gates@...>
Hi folks,
[#322566] How to run background processes (more than 1 worker) parallely. — "Deepak Gole" <deepak.gole8@...>
Hi
[#322571] Multiple Ruby versions for testing — "James Coglan" <jcoglan@...>
Hi list,
[#322578] FFI Gem on Win32 — Simon Smith <simonjsmithuk@...>
Hi,
2008/12/13 Simon Smith <simonjsmithuk@yahoo.co.uk>:
[#322580] Function def at end of scripts — No Where <nowhere@...>
Hi,
[#322620] need quick check on my rubygems install procedure — Tom Cloyd <tomcloyd@...>
I'm running Kubuntu Linux 8.10 - a fresh install. I'm setting up Ruby now.
[#322622] Creating directory structures — Ch Ba <navouri@...>
I'm having a bit of a difficult time coming up with a solid way handle
[#322624] singleton methods vs. meta instance methods — Daniel DeLorme <dan-ml@...42.com>
If I understand the ruby object model correctly, then an object's
On Sat, Dec 13, 2008 at 6:25 AM, Daniel DeLorme <dan-ml@dan42.com> wrote:
Robert Dober wrote:
On Sat, Dec 13, 2008 at 10:50 PM, Brian Candler <b.candler@pobox.com> wrote:
Robert Dober wrote:
On Sun, Dec 14, 2008 at 12:16 PM, Brian Candler <b.candler@pobox.com> wrote:
Robert Dober wrote:
[#322643] Beggining the compiler journey — Rafael Rosa <rafaelrosafu@...>
Hi,
[#322666] marshal_load, marshal_dump — Tim Hunter <TimHunter@...>
Currently RMagick uses the old _dump and _load methods to
On Dec 13, 2008, at 14:36 PM, Tim Hunter wrote:
[#322675] Command line utilities in rubygems? — Ch Ba <navouri@...>
I have a small project that I'm working on and I would like the
[#322681] email structure — Adam Akhtar <adamtemporary@...>
I have accessed my gmail account and using imap downloaded an email and
[#322702] Speed up require on win32 — Alex 2k8 <abc3def@...>
Hello,
Hello, Robert
[#322705] ruby 1.9.1: Encoding trouble: broken US-ASCII String — Tom Link <micathom@...>
Hi,
> text = File.read("text.txt", :encoding=>"ISO-8859-1")
Tom Link wrote:
Brian Candler wrote:
Ah, there is a preview here:
On Dec 15, 2008, at 7:55 AM, Brian Candler wrote:
In article <AC6610E0-BA7A-498A-96E3-853617CAE2CF@grayproductions.net>,
[#322709] rubygems install confusion - beginner problems — Tom Cloyd <tomcloyd@...>
Yesterday I compiled ruby 1.8.7, and have verified that it's now
[#322710] Help with an "easy" regular expression substitution — Iñaki Baz Castillo <ibc@...>
Hi, I'm getting crazy to get a theorically easy substitution:
Hi --
El Domingo, 14 de Diciembre de 2008, David A. Black escribió:
[#322725] __PRETTY__FUNCTION__ for Ruby? — John Carter <john.carter@...>
We have __FILE__ and __LINE__....
[#322726] Quality of Ruby — Kless <jonas.esp@...>
I was reading this interesting post [1] about Ruby, and well..., you
[#322756] How to create a music player using ruby — Tejaswini Pedapati <tejaswinipvk@...>
I want to create a music player like itunes or media player using ruby.
[#322757] Accentuated function names — Jean-baptiste Hétier <djib.nospam@...>
Hello,
[#322802] Re: [QUIZ] Mix and Match (#186) — peter@...
Is it possible to post a solution already? (I guess the question is
On Mon, Dec 15, 2008 at 3:31 PM, Matthew Moss <matt@moss.name> wrote:
[#322815] Walk through directory structure, look at first file, rename dir in consequence. — Aldric Giacomoni <"aldric[remove]"@...>
This is pretty ugly and doesn't work.. Can't figure out why, but it
Einar Magn俍 Boson wrote:
[#322819] Pure Ruby Zlib::GzipWriter — Daniel Berger <djberg96@...>
Hi,
On Jan 9, 9:26m, "Charles L." <aquas...@gmail.com> wrote:
> I've put in a feature request [2] but I'd like to see it expedited. In
Daniel Berger wrote:
Daniel Berger wrote:
Charles L. wrote:
Hi,
Heesob Park wrote:
Roger Pack wrote:
On Jan 12, 12:38m, Daniel Berger <djber...@gmail.com> wrote:
[#322861] Google translate ruby client 1.0 — "Dingding Ye" <yedingding@...>
Hi.
[#322863] Is there any IDE for WATIR development? — Narendra Gollapilli <narendra.gollapilli@...>
Hi,
Hi Narendra,
[#322873] Unique values in hash? — "Vapor .." <vaqas.ashraf@...>
Hi,
[#322881] implementing python's os.walk — Brad Volz <bradv@...>
Hello,
[#322886] Validation — Cyrus Dev <cyrus_dev@...>
Hi ,
[#322910] Ruby 1.8.6 - normal behavior ? — Aldric Giacomoni <"aldric[remove]"@...>
I don't know enough to really test this but I came across a funny
> #Apparently, the simple fact of checking this keeps Ruby from raising
[#322913] How to cycle through an instance — Tom Ha <tom999@...>
Hi there,
[#322930] about Float — Kyung won Cheon <kdream95@...>
a = 1333.3339999999964
On Tue, Dec 16, 2008 at 8:32 PM, Kyung won Cheon <kdream95@gmerce.co.kr> wrote:
[#322941] ruby way of dumping file — "Joshua Ball" <chezball@...>
Hi,
[#322942] function discovery — "Joshua Ball" <chezball@...>
I am curious if there is a programatic way to list all methods of a class.
[#322954] About qt4-ruby — Magicloud <magicloud.magiclouds@...>
Hi,
[#322979] Ruby based Discussion forum — rubydevl <email2sanjay@...>
Hello All-
[#322986] Hopefully simple regex — "stephen O'D" <stephen.odonnell@...>
Hi,
[#322987] Using ruby hash on array — Stuart Clarke <stuart.clarke1986@...>
I would like to process some data from an array and using hash to
2008/12/17 Stuart Clarke <stuart.clarke1986@gmail.com>:
2008/12/18 Stuart Clarke <stuart.clarke1986@gmail.com>:
[#322992] Hpricot problem with free text — John Zoldiark <tavarezjonathan@...>
Hi and thanks for the help, I am new to ruby and I am trying to get some
[#322997] Net::SSH - kick off background job — "Sebastian W." <swittenk@...>
Does anyone know of a way to tell Net::SSH to start running a script but
Sebastian W. wrote:
On Thu, Dec 18, 2008 at 2:27 AM, Brian Candler <b.candler@pobox.com> wrote:
[#323016] Array problem — John Zoldiark <tavarezjonathan@...>
I have an array like this:
[#323034] Define objects from classes in different files — Jason Lillywhite <jason.lillywhite@...>
Could someone help me with this little problem?
[#323075] Get Status Code of URL — Desingurajan Aswanthaaman <desingurajan@...>
url = URI.parse("http://www.google.com/")
[#323079] Regular exressions and arguments — Rick Jones <ukbell@...>
This should be (and probably will be) a simple answer, but if I have the
[#323085] Ruby and Rails supported on 10gen — "Jim Menard" <jim.menard@...>
http://www.10gen.com/blog/2008/12/ruby-support-on-10gen
Jim Menard wrote:
On Thu, Dec 18, 2008 at 8:32 PM, Charles Oliver Nutter
Jim Menard wrote:
[#323086] Show newest file in directory? — Mmcolli00 Mom <mmc_collins@...>
If you have a directory full of files, how can you get the newest file
On Dec 18, 12:36m, Mmcolli00 Mom <mmc_coll...@yahoo.com> wrote:
[#323091] .profile in UNIX — Bob Smyph <eric.ramsey@...>
Does anyone know how to access and use the .profile in UNIX while using
Bob Smyph wrote:
[#323106] RbFind 1.1 — Bertram Scharpf <lists@...>
Hi,
[#323108] RAWR can't find jruby_fetch — "Leslie Viljoen" <leslieviljoen@...>
Hi people!
[#323121] block comment problem — Mrmaster Mrmaster <mrsolarlife@...>
Hello,
[#323125] How to check endianess using ruby? — Xie Hanjian <jan.h.xie@...>
Hi,
[#323129] could this one line Date extension to return the end of financial year date be any more compact? — "Greg Hauptmann" <greg.hauptmann.ruby@...>
could this be any more compact or ruby like that it is?
[#323134] How to implement drag and drop — Arati Sawant <arati.sawant@...>
Hi,
[#323150] Runtime error after moving to 1.8.7 — "Gerardo Santana Gez Garrido" <gerardo.santana@...>
Ruby/Informix works fine on Ruby 1.8.6, but after installing Ruby
[#323166] Dreaming of a Ruby Christmas (#187) — Matthew Moss <matt@...>
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On Fri, Dec 19, 2008 at 3:08 PM, Matthew Moss <matt@moss.name> wrote:
[#323169] Last chance for JRubyOne...er...JavaOne proposals — Charles Oliver Nutter <charles.nutter@...>
Today is the last day for JavaOne proposals, and we're really hoping to
[#323181] FTP — Philip Pratt <pratstercs@...>
Hi,
[#323182] YAML troubles — Tim Mcd <tmcdowell@...>
I am working on a ruby MUD server, and I wanted to save a list of
[#323193] ruby midi problem — rick_2047 <rick.chatterbox@...>
Ok i was going through the book "Ruby practical Projects" and right at
[#323204] get first and last line from txt file - how? — Mmcolli00 Mom <mmc_collins@...>
I have txt file with date/time stamps only. I want to grab the first
Mmcolli00 Mom wrote:
I'm just wondering..
2008/12/20 Yaser Sulaiman <yaserbuntu@gmail.com>:
On 20.12.2008 17:46, Thomas Preymesser wrote:
2008/12/21 Robert Klemme <shortcutter@googlemail.com>:
From: Thomas Preymesser [mailto:thopre@gmail.com]
[#323213] add text at beginning of a string — Fernando Perez <pedrolito@...>
Hi,
On Sat, Dec 20, 2008 at 6:13 PM, Fernando Perez <pedrolito@lavache.com> wrote:
[#323222] Trying to make modifications to a gem... — Aldric Giacomoni <"aldric[removeme]"@...>
I'm toying around with a gem. How can I easily make changes and test
[#323245] Why Ruby stops working under cygwin — Li Chen <chen_li3@...>
Hi all,
[#323267] login form — Johny ben <joh13ny@...>
I just want to create a login form on my RoR project.anyone have a good
[#323273] how to make installing Ruby easier for amateurs — Tom Cloyd <tomcloyd@...>
Greetings!
Tom Cloyd wrote:
Marc Heiler wrote:
[#323312] Name that data structure! — Simon Chiang <simon.a.chiang@...>
I'm using a data structure that I'm sure has been implemented and
On Mon, Dec 22, 2008 at 5:38 PM, Simon Chiang <simon.a.chiang@gmail.com> wrote:
Gregory Brown wrote:
Sounds like a marked graph to me, and not directed at all, or did I
Robert Dober wrote:
Tom Cloyd wrote:
Addendum:
[#323326] Error after install — Callen Mascarenhas <callenmas@...>
I installed Ruby on my RHEL 3 system. I did the following:
> Now when I try to run irb in
unknown wrote:
Callen Mascarenhas wrote:
Brian Candler wrote:
[#323333] Problem running simple rail application — Vikas Gholap <vikasg@...>
Hello to all , please Give me solution..............
[#323342] Are all Ruby built-in objects thread safe? — "Just Another Victim of the Ambient Morality" <ihatespam@...>
Are all built-in objects thread safe? For example, if I have an array
Hi,
Yukihiro Matsumoto wrote:
I would very much welcome a set of guaranteed-thread-safe wrapper
[#323351] Loading up a hash with variables if they are defined — "Patrick Doyle" <wpdster@...>
Is there a cleaner, more Rubyesque way to do this?
[#323397] Go LABEL — Xx Xx <limhuisian@...>
Can we do a " go label " in ruby just like in asm? i cant find any
goto
Cant download from the link http://raa.ruby-lang.org/project/ruby-goto/
[#323403] Calling Ruby from Delphi — Rob Ram <numeric@...>
I want to call an embedded ruby function from Delphi 2009. A C or C++
[#323409] Ruby Installation Mac Leopard — Michael Rigart <damick@...>
Hi everybody
[#323420] Newbie - open file permission denied — Bob Smith <rasmith2310@...>
I am attempting to open a directory, open each file and send each line
[#323434] Testing Data Scrapes — Michael Boutros <me@...>
Hello all,
[#323450] StressTest — Ilias bankai <citrix_linux@...>
[#323468] Buiding anamgrams — andrea <kerny404@...>
I'm studying ruby (and I really love it even more than python) and I
[#323482] Regular Expression Trouble — Chris Hoeppner <chris.webstar@...>
Hey!
[#323488] Win32API- GetForegroundWindows() — Diego Guti <diegosanjulian@...>
Hi!
Diego Guti wrote:
[#323494] ruby -> python — Roger Pack <rogerpack2005@...>
I was thinking the other day...wouldn't it be nice to be able to take
On Dec 26, 11:11m, Roger Pack <rogerpack2...@gmail.com> wrote:
[#323511] Interpreter to work well with other programming languages — Rafael El Frederico <rubyisking@...>
What would be some good interpreters for the Ruby programming language?
On 27.12.2008 11:51, Rafael El Frederico wrote:
[#323519] What does 'Monkey Patching' exactly Mean in Ruby? — "Yaser Sulaiman" <yaserbuntu@...>
According to Wikipedia, a monkey patch[1] is:
Phlip wrote:
Hi --
On Fri, Jan 2, 2009 at 1:42 PM, David A. Black <dblack@rubypal.com> wrote:
Hi --
On Fri, Jan 2, 2009 at 5:30 PM, David A. Black <dblack@rubypal.com> wrote:
Robert Dober wrote:
> odule MyGsubBang
[#323536] SUPRISE...! — symbolsofpower@...
http://freemobiletechs.blogspot.com/
[#323541] Syntax error I don't understand — Albert Schlef <albertschlef@...>
(I'm using Ruby 1.8.6.)
Albert Schlef wrote:
Dave Bass wrote:
[#323542] New to Ruby: copying arrays? — John Park <jcpark@...>
Hi. First-time poster here. I've done some programming in Delphi
[#323573] Few Questions on Ruby — Anil Bhat <anilbhat21@...>
Given this module definition:
[#323574] use not equal(!=) operator as a Symbol. — Jun Young Kim <jykim@...>
Hi, all
[#323581] unable to open Excel file — Riya Rai <riya1236@...>
[#323603] Bug In Ruby 1.8.6-26 — Opt Opt <jp0661@...>
I'm currently coding a ruby/rails application on Windows Vista using
[#323612] Creating a class for returing DB results — Darin Ginther <darin.ginther@...>
I'm a ruby noob. I've managed to accomplish what I want to do in one
You're close. Wrap the actual code which does the action in another
[#323616] Convert String object to Time — Mmcolli00 Mom <mmc_collins@...>
Hi
[#323631] What you do when dealing with a huge number of conditions ? — Nicholas Wieland <nicholas.wieland@...>
[#323639] racc 1.4.6 release — Aaron Patterson <aaron@...>
racc 1.4.6 has been released!
On Tue, Dec 30, 2008 at 05:44:23PM +0900, Ryan Davis wrote:
[#323644] Why Ruby? — Mike Stephens <rubfor@...>
I have never seen or heard of Ruby in a corporate context. The single
Of course ten years ago Mike could easily have been asking:
Mike Stephens wrote:
Mike Stephens wrote:
Thanks Phlip.
On Thu, Jan 8, 2009 at 4:29 PM, Mike Stephens <rubfor@recitel.net> wrote:
[#323650] babelfish 0.0.1 — Suraj Kurapati <snk@...>
babelfish : Ruby interface to Yahoo! BabelFish translation service
wow.. this is great!!!
[#323668] Ruby 1.9.1 RC1 is released — "Yugui (Yuki Sonoda)" <yugui@...>
Hi, folks
On Tue, Dec 30, 2008 at 9:36 AM, Yugui (Yuki Sonoda) <yugui@yugui.jp> wrote:
Can it be published as a torrent?
[#323700] Ruby Noobie needs some help — r <rt8396@...>
Hello,
[#323740] about searching constant — Kyung won Cheon <kdream95@...>
class A
[#323746] Happy New Year Ruby Community! — "Pablo Q." <paqs140482@...>
Happy New Year Ruby Community!
Pablo Q. wrote:
Ruby Rabbit wrote:
[#323748] Ruby arguments into C function are warped — Daniel Waite <rabbitblue@...>
I want to code a few methods in C for speed reasons. The Pick Axe book
Re: Are all Ruby built-in objects thread safe?
On Fri, Dec 26, 2008 at 11:24 AM, Robert Klemme
<shortcutter@googlemail.com> wrote:
> On 26.12.2008 10:43, Robert Dober wrote:
>>
>> I would very much welcome a set of guaranteed-thread-safe wrapper
>>>
>>> collections folks could use if they're concerned about concurrency, since
>>> it
>>> would be unreasonable to penalize all code with locking. For now, learn
>>> and
>>> love Mutex, or don't share collections across threads.
>>
>> That sounds like a fun job. The issue goes well with a question which
>> burns on the top of my tongue:
>> How to test thread issues? I do not have any experience in this field
>> but consider it somehow critical before "promising" functional thread
>> safe wrappers.
>
> This is tricky. There are few things I'd like to say to this: first, there
> is an easy way to provide _basic_ thread safety by wrapping all method calls
> in a synchronized block - for this even a SynchronizedDelegator would be
> sufficient which could be used for _all_ classes - not just collections. In
> this case, because of the way the wrapping is done there is no need to test
> thread safety because - as long as the delegator ensures that all methods
> are wrapped in this way there is no chance of corrupting internal state.
>
> But, in the general case thread safety cannot be achieved on the class
> level. My typical example is this
>
> if hash.contains_key? k
> dat = hash[k]
> else
> dat = create_dat(k)
> hash[k] = dat
> end
>
> The basic property of this bit of code which makes it impossible to ensure
> thread safety on level of class Hash is that there are two methods invoked
> on the same instance and there must not be any state change between them
> because then you either end up with garbage (nil) in "dat" or you invoke
> create_dat(k) more than once per key value and this leads to different
> threads having a different idea of what hash[k] is.
>
> So in this case you need a lock around the _complete_ block of code. (Note,
> the method level lock would work if using a Hash with a default block, but
> this solves only a small portion of the cases.) This is also the reason why
> a general per method locking is only of limited use. It only ensures
> consistency of the internal state of an object but can never ensure overall
> concurrency correctness of an application.
>
> Testing thread safety is difficult to impossible for several reasons. One of
> the reasons is that for proper control of the test case you would need to
> ensure exact timing of thread execution. While you could do that I have
> never seen people actually doing this - maybe because this will make test
> suites run much slower. Another reason is that you vastly depend on the
> underlying machine (i.e. hardware, OS and VM). I have seen Java programs
> break as soon as they were executed on a multi core machine with more than n
> cores.
>
> Things aren't made easier by the fact that - concluding from postings I see
> on comp.lang.java.* newsgroups for example - few people seem to have a
> thorough understanding of concurrency and all the issues involved. Another
> item on the "makes it hard" list is the fact that most OO and procedural
> languages only have a very basic toolkit for concurrency control; while Java
> started out pretty good with built in "synchronized" it took until version 5
> that they incorporated Doug Lea's concurrency utilities into the language's
> standard library and also into the EJB spec.
>
> It's different in other programming languages: functional languages are by
> definition thread safe because they are free of side effects. (At least in
> theory. :-)) Also, other languages built for concurrent applications which
> have a different programming model (e.g. Occam) of course have much better
> support for concurrency.
>
> Kind regards
>
> robert
>
>
> --
> remember.guy do |as, often| as.you_can - without end
>
>
Robert, IIUC we do not want either the one, nor the other.
For what I am concerned one would need Read/Write Locks.
The built in methods like [] and []= would obtain read and write
locks, while the read lock automatically obtains a write lock and only
releases it when its count is to zero, the write lock would inhibit
the read lock to be obtained.
I do not know if one should allow user access to these locks? My first
thought would be no, all we want to do is to have thread-safe Hash,
Array, String but not to provide advanced synchronization mechanisms.
OTOH one could expose the write_lock and read_lock of each object
which would allow for the following
hash = TS_Hash::new
...
dat = hash.read_synchronize do
if hash.has_key? key then
hash[ key ]
else
hash.write_synchronize do
hash[key] = compute_data( key )
end
end
end
N.B. We have to solve the interlock problem here as normally the
write_synchronize does not obtain the write_lock
as the read_synchronize did get a read_lock. We would need to grant
the write lock if the read_lock is obtained by the current thread
*only*, but imagine two threads waiting for the write_lock while
containing the read_lock, the good old
philosophers-forks-spoon-spaghetti interlock. [ That is why we eat
spaghetti with a fork only ;) ]
Therefore I guess the RW-locking in a ThreadSafe Container class shall
rather not be exposed as we avoiding interlocking is not that
complicated IIRC
And if we expose read_synchronize &blk, and write_synchronize &blk we
should probably raise something like an IllegalMonitorState exception
if a thread tries to call the one inside the other.
More thoughts please.
Cheers
Robert
--
Il computer non una macchina intelligente che aiuta le persone
stupide, anzi, una macchina stupida che funziona solo nelle mani
delle persone intelligenti.
Computers are not smart to help stupid people, rather they are stupid
and will work only if taken care of by smart people.
Umberto Eco