[#398787] Beginner Help - Encoding error exporting/writing to CSV — "Allan A." <lists@...>
I've looked all over the internet and can't seem to figure out what I
Can you show us the code? It would be easier to help.
[#398788] Constructor or a Method — Rubyist Rohit <lists@...>
Take for instance this code:
On Saturday 01 September 2012 Rubyist Rohit wrote
> Note that both the method definitions are useless here, as using
[#398797] What makes Ruby a dynamic language? — Rubyist Rohit <lists@...>
I am reading from time to time in several books that Ruby is a dynamic
On 2012-09-01, at 14:07, Rubyist Rohit <lists@ruby-forum.com> wrote:
2012/9/1 Uwe Kubosch <uwe@kubosch.no>
[#398810] Ruby module to get df -h output — Fosiul Alam <lists@...>
Hi
[#398833] How to get part of a string — Fosiul Alam <lists@...>
HI
[#398835] capture system command output — Fosiul Alam <lists@...>
Hi
On 2012-09-02 22:06, Fosiul Alam wrote:
> $?'s class is Process::Status
[#398844] Looking for patterns in a collection — Rainer Thiel <lists@...>
Greetings, i have the following (fragment olny) :
[#398848] Gem Install Nokogiri Newb — Benedict Wong <lists@...>
Hey guys, would really appreciate your help, I'm a complete noob with
[#398852] Extract # Number from a string — Erez Ben shoham <lists@...>
Hi
[#398883] need help to get output — Ferdous ara <lists@...>
Hi
[#398896] how to sum element of array — Edward QU <lists@...>
dear all
Edward QU wrote in post #1074559:
Padma J. wrote in post #1076389:
On Mon, Sep 17, 2012 at 9:27 PM, Padma J. <lists@ruby-forum.com> wrote:
[#398906] Socket Decorator — Bernhard Brodowsky <lists@...>
Hi, I am implementing a special kind of socket that takes an io object
On 09/04/2012 07:34 AM, Bernhard Brodowsky wrote:
[#398908] How to get unicode support in ruby — "nandan k." <lists@...>
Hi All,
[#398909] faster CSV process only one row! — ajay paswan <lists@...>
Suppose I have a string s, which is basically a CSV, how can I get it as
On Tue, Sep 4, 2012 at 3:25 PM, ajay paswan <lists@ruby-forum.com> wrote:
[#398910] Delete a line from a file — Ferdous ara <lists@...>
Hi
[#398936] best coding for limiting a value — Regis d'Aubarede <lists@...>
A) result=value<min ? min : (value > max ? max : value)
On Tue, Sep 4, 2012 at 10:13 PM, Regis d'Aubarede <lists@ruby-forum.com> wrote:
haha good one ;)
[#398949] Parsing Newb Help — Benedict Wong <lists@...>
Hey guys,
[#398962] Long calculation & time limit — toto tartemolle <lists@...>
Hello,
>If you want to know exactly what part of your program is taking a long
[#398964] Compiling ruby from source on windows — GPad <peterpan105105@...>
Hi to all,=0AI'm trying to compile ruby on my windows 7. I have already a r=
you already have visual studio installed?
Why do we need Visual Studios if we got Ruby? Is it a compiler issue? Will
Hi,=0AI have VS installed but the problem seems related to the generation o=
On Mon, Sep 17, 2012 at 2:04 AM, GPad <peterpan105105@yahoo.it> wrote:
[#398974] Newbie needs help — "Ken L." <lists@...>
Hi everyone,
[#398984] awk equivalent in ruby — Ferdous ara <lists@...>
HI
On Wed, Sep 5, 2012 at 2:19 PM, Ferdous ara <lists@ruby-forum.com> wrote:
[#398991] Ruby's Mark mechanism — Tridib Bandopadhyay <lists@...>
Hello
[#398997] OpenURI open method problem — "Derek T." <lists@...>
The code I am referring to looks like this:
If that's the case, is there a way I can follow the link all the way
[#399002] Parsing through downloaded html — Sybren Kooistra <lists@...>
Hi all,
Hi Ivan, thanks.
I've done similar job recently. I've copied part of code so look at it
"=D0=98=D0=B2=D0=B0=D0=BD =D0=91=D0=B8=D1=88=D0=B5=D0=B2=D0=B0=D1=86" <iv=
On 09/07/2012 03:29 AM, Michelle Col wrote:
Am 07.09.2012 09:28, schrieb Lars Haugseth:
Thanks Jesus.
[#399012] "Hiding" pictures(and source code if it's possible) — "Damián M. González" <lists@...>
Ey guys, how are you?
[#399029] Dotgeek Free Hosting for Learning Ruby — "dotgeekm d." <lists@...>
Hello Everyone,
[#399053] "Guess the random number" game — "Mattias A." <lists@...>
Hi guys!
Ahhh.. Its not easy to be a beginner... :P Thanks robert!!!
[#399072] How to patch ruby's gem before an install ? — David Unric <lists@...>
Hi,
Quoting David Unric <lists@ruby-forum.com>:
2012/9/7 David Unric <lists@ruby-forum.com>:
[#399083] regix in grep or something like this — Ferdous ara <lists@...>
Hi
Sorry.. is not it better to give the solution rather then pulling some
[#399110] Using ruby for scientific computing — Olivier Saut <osaut@...>
Hi all,
Hello,
[#399127] Match an ARray Element by if — sharmin malik <lists@...>
Hi
[#399141] Need help with my logic — sharmin malik <lists@...>
Hi Experts,
[#399157] Why does it work? (variable scope) — Iñaki Baz Castillo <ibc@...>
Two similar cases (same behavior):
[#399162] Export to CSV has array items under a single row — "Allan A." <lists@...>
I posted this issue over on StackOverflow but haven't received a reply,
On Mon, Sep 10, 2012 at 12:35 PM, Allan A. <lists@ruby-forum.com> wrote:
[#399164] Looking for advice on how to report performance issues — jason marshall <jdmarshall@...>
Hello,
[#399184] String iterate through regex matches with possition — Vicente Bosch <vbosch@...>
Hi,
[#399186] installing ruby gem — "Antonio A." <lists@...>
Hi everyone,
[#399189] About choosing Ruby? — "Mr. Bean" <lists@...>
I want to learn a programming langauge and I am stuck between Python and
[#399206] please help me with making script — Charmaine Willemsen <lists@...>
In this example i like to parse birthday and sexe
try modifying your XPath to use the following (worked for me using nokogiri)
[#399218] Pathname#to_str withdrawn in 1.9? — matt@... (Matt Neuburg)
Just getting started experimenting with Ruby 1.9 (1.9.3) and my scripts
Robert Klemme <shortcutter@googlemail.com> wrote:
It's definitely a judgment call. Not sure if this helps you, but I think
I'd hazard a guess that the reasoning is because the '+' behavior was
[#399227] Breaking Down the Block — incag neato <lists@...>
Can someone please explain in plain english how this block treats the
[#399244] ruby Range to array that acts like time objects? — "Jermaine O." <lists@...>
Hello everybody,
I'd create a class, maybe `class HoursMinutes`, which has @hour and
Sorry if my answer was a bit air-headed. Here's a more tangible example:
On Thu, Sep 13, 2012 at 1:54 PM, Matthew Kerwin <matthew@kerwin.net.au> wrote:
On Thu, Sep 13, 2012 at 08:31:44PM +0900, Jermaine O. wrote:
[#399265] inject is pathetic? — Dave Aronson <rubytalk2dave@...>
On Wed, Sep 12, 2012 at 11:46 PM, 7stud -- <lists@ruby-forum.com> wrote:
Dave Aronson <rubytalk2dave@davearonson.com> wrote:
On Thu, Sep 13, 2012 at 10:00 PM, Matt Neuburg <matt@tidbits.com> wrote:
Josh Cheek wrote in post #1075977:
[#399269] \b not working? — Cookie Rubster <lists@...>
Hi,
On 14 September 2012 09:24, Cookie Rubster <lists@ruby-forum.com> wrote:
[#399280] simple_gui_creator 0.2.0 released — Roger Pack <lists@...>
Hello all.
[#399283] want to get string between specialchars at endof the string — Lucky Nl <lists@...>
Hi friends,
The quick way to do that would be:
[#399293] Ruby on Ubuntu 12.04 LST — Bojan Jordanovski <lists@...>
Hello everybody,
Bojan,
[#399298] wow, YAML / Psych in 1.9.3 is *slow*! — matt@... (Matt Neuburg)
I just started trying Ruby 1.9.3, coming from Ruby 1.8.7, and was
[#399304] Ruby 1.9.3 and OS X Mountain Lion — sto.mar@...
Hi all,
Don't bother uninstalling. It'll just come back in updates.mapple leaves /us=
<sto.mar@web.de> wrote:
[#399324] using erb to generate a file — Dev Guy <devguy.ca@...>
Hey guys I am generating a file using erb and an input template file.
[#399327] how to write a array into a string — Edward QU <lists@...>
Hello all
[#399343] Class variables or Class singleton variables? — "Damián M. González" <lists@...>
Guys, how are you?
Are we aren't talking about the same thing?
I don't get what you mean. The singleton class of a class is obviously
On Sat, Sep 15, 2012 at 1:41 PM, Dami=E1n M. Gonz=E1lez <lists@ruby-forum.c=
Josh Cheek wrote in post #1076199:
On Sun, Sep 16, 2012 at 2:16 AM, Dami=E1n M. Gonz=E1lez <lists@ruby-forum.c=
[#399354] "Anonymous classes or modules", what are? (Marshaling) — "Damián M. González" <lists@...>
I'm trying to find out if is possible to serialize a class object, with
Dami=C3=A1n M. Gonz=C3=A1lez wrote in post #1076192:
Brian Candler wrote in post #1076224:
[#399369] Ruby, AI, Chatbots, Semantic Avatars and memory (persistence?) — Philip Rhoades <phil@...>
People,
There are a number of chatbots in Ruby out there but after I looked at
[#399386] Ruby - is it worth the effort? — neomex <neomex@...>
Hello,
Unfortunately with Ruby for me it's typically "fun and fast development"
Roger Pack писал 17.09.2012 22:06:
On Mon, Sep 17, 2012 at 8:20 PM, Peter Zotov <whitequark@whitequark.org> wr=
On 19 September 2012 09:24, Robert Klemme <shortcutter@googlemail.com> wrote:
On Wed, Sep 19, 2012 at 10:36 AM, Peter Hickman
> Was that 1.8.* or did you try that with 1.9.* MRI? What kind of
[#399396] Inline Assembly / Inline C — neomex <neomex@...>
Hello,
[#399398] Dir.mktmpdir doesn't remove it at exit? — Roger Pack <lists@...>
Hello.
Hmmm. IMO, the behaviour should be consistent, and not depend on whether
[#399421] Encoding question — Thomas Bednarz <lists@...>
I am new to ruby and play around with it a little bit at the moment. I
In the code example you used, there's no external encoding being
Nathan Beyer wrote in post #1076380:
On Thu, Sep 20, 2012 at 2:58 AM, Brian Candler <lists@ruby-forum.com> wrote:
Nathan Beyer wrote in post #1076883:
[#399436] Teaching a Class on Ruby — Brandon Weaver <keystonelemur@...>
Hey guys, I'm new to the list. I'm a Student Rubyist/Unix Hacker out of
[#399441] Bug or feature — Damjan Rems <lists@...>
There has probably been some discussion about this problem so sorry if I
On Tue, Sep 18, 2012 at 9:36 AM, Damjan Rems <lists@ruby-forum.com> wrote:
Robert Klemme wrote in post #1076432:
On Tue, Sep 18, 2012 at 8:44 PM, Damjan Rems <lists@ruby-forum.com> wrote:
[#399451] Class variables — Aleksander Ciesielski <neomex@...>
Is it obligatory to use instance variables in classes? Can't we just
[#399458] FloatDomainError while rounding — "raj g." <lists@...>
I am Trying to Round a number in my code which is as follows
Yes I have printed @den1 and @den2 but both of them are not same. even
[#399479] Ruby SQL Select Sum 2 Columns? — Courtney Fay <lists@...>
I have the following definition which is looking at an apache database,
[#399515] uninitialized constant VoiceSynth (NameError) — Aleksander Ciesielski <neomex@...>
Hello,
[#399523] behavior of iterator methods — takanobu maekawa <lists@...>
Hi all,
[#399524] the behavior of iterator methods — ten ten <lists@...>
Hi all,
Some methods change objects in place, others return a changed object and lea=
[#399540] RubyWorld Conference 2012 — Shugo Maeda <shugo@...>
Hello,
[#399556] still learning by doing - connecting rooms in a game — "Sebastjan H." <lists@...>
Hi,
Henry Maddocks wrote in post #1076876:
Could you be so kind as to suggest another book? I mean there are many
Sebastjan H. wrote in post #1076909:
Ok just a few points on the code that you did write.
Peter Hickman wrote in post #1076973:
Sebastjan H. wrote in post #1078385:
Jan E. wrote in post #1078392:
On Fri, Sep 21, 2012 at 12:02 AM, Henry Maddocks <hmaddocks@me.com> wrote:
Thank you all for recommending the reading and all the suggestions and
On Mon, Sep 24, 2012 at 8:46 PM, Sebastjan H. <lists@ruby-forum.com> wrote:
[#399558] Ruby Conferences for Students — Brandon Weaver <keystonelemur@...>
I'd love to be able to go to a Ruby conference, but 350$ is somewhat
[#399560] Re-throwing an exception — Jeff Tanner <lists@...>
Hi
[#399572] How would you allow variable from specific list of Fixnum? — Eliezer Croitoru <eliezer@...>
I have:
Hi,
Jan E. wrote in post #1076932:
On 9/21/2012 6:18 PM, 7stud -- wrote:
[#399577] ruby - remote method invocation — ajay paswan <lists@...>
How to start/run a ruby program in a remote machine in a LAN using a
[#399618] "percent-encoding" and "application/x-www-form-urlencoded" — Jeff Tanner <lists@...>
Hi
[#399623] Very important question - survey — Marc Heiler <lists@...>
Is matz more like a ninja or more like a samurai?
W dniu 2012-09-22 17:25, Marc Heiler pisze:
Ah and I was hoping no one would respond to this thread but as you
W dniu 2012-09-22 20:01, Peter Hickman pisze:
Welcome to the internet where facts are just a search away :) - if you
W dniu 2012-09-23 12:57, Peter Hickman pisze:
Yeah I was being a dick about it. Sorry about that
W dniu 2012-09-23 14:56, Peter Hickman pisze:
[#399641] Webframework that separates validation from persistence — Stefan Lang <perfectly.normal.hacker@...>
Is there a Ruby webframework that doesn't couple validation with persistence?
[#399646] sandwhich principle (ruby koans) — Roelof Wobben <rwobben@...>
Roelof,
[#399658] Insert at index — Geena Tho <lists@...>
Hi,
[#399683] beginner question. — "Samuel B." <lists@...>
I'm sure this has been asked before, but I was looking for some help.
[#399690] image processing — "Nicolò L." <lists@...>
I'm trying to build a program meant to recognize plants by looking at a
On 9/25/2012 3:40 AM, NicolL. wrote:
[#399695] inject problem — Roelof Wobben <rwobben@...>
Hi,
On Tue, Sep 25, 2012 at 11:31 AM, Jan E. <lists@ruby-forum.com> wrote:
The first parameter of the "inject" block is always the intermediate
You're iterating over the wrong object. After you've build the hash, you
[#399714] could initialize return an existing object instead of a new instance? — Gary Weaver <lists@...>
Is it possible for initialize to return an existing object instead of a
2012/9/25 Gary Weaver <lists@ruby-forum.com>:
Bartosz Dziewo=C5=84ski wrote in post #1077524:
2012/9/26 Gary Weaver <lists@ruby-forum.com>:
[#399726] Encoding issues... — Hal Fulton <rubyhacker@...>
I am playing more with encodings and having some problems.
[#399736] How To Rectify This Error? — "Kaushik Sharma L." <lists@...>
I am attaching my '.rb' file. Please check it. I am getting an error-
[#399750] Subclassing Date — "Damián M. González" <lists@...>
Ey guys, can't understand what's happening here:
Oh ok! now I'll have to seek another way, thanks for deal.
[#399754] Need Help With This Ruby Program!! — "Kaushik Sharma L." <lists@...>
I am attaching my '.rb' file. Please check it. I am getting an error-
Looks like the class needs the end. But, I only took a quick look.
The problem is the clean_number method and the print_numbers method
[#399756] Array Creation — Tridib Bandopadhyay <lists@...>
Hello
On Wed, Sep 26, 2012 at 3:21 PM, Tridib Bandopadhyay
Dave Aronson wrote in post #1077665:
On Wed, Sep 26, 2012 at 1:32 PM, Tridib Bandopadhyay
On Wed, Sep 26, 2012 at 3:47 PM, Tony Arcieri <tony.arcieri@gmail.com> wrote:
[#399761] Adding method on module class to yield and allow setting of attributes? — Gary Weaver <lists@...>
I have this Module:
> MyModule.configure do
7stud -- wrote in post #1077677:
[#399782] Need Help With 'Form Letters' In This Event Manager Project — "Kaushik Sharma L." <lists@...>
Hi friends I am not getting any idea of solving the Iteration 6: Form
Am 27.09.2012 07:17, schrieb Kaushik Sharma L.:
[#399795] subtract values of a array — Roelof Wobben <rwobben@...>
[#399811] Good book for getting started with Ruby? [I code Python!] — Alec Taylor <alec.taylor6@...>
I've learned programming in C++, Python and PHP at University. (also
Good question, there's many books about Ruby, now I'm apart from the
The Elegant Rubyist
[#399815] calcaulation with unknown numbers of numbers and options fail — Roelof Wobben <rwobben@...>
On Fri, Sep 28, 2012 at 9:40 AM, Roelof Wobben <rwobben@hotmail.com> wrote:
On Fri, Sep 28, 2012 at 10:18 AM, Roelof Wobben <rwobben@hotmail.com> wrote:
Hi,
[#399834] I need to know any way to read the values from a webpage table — Arup Rakshit <lists@...>
Hi,
[#399844] ibonacci sequence problem — Roelof Wobben <rwobben@...>
[#399846] Getting different results using Ruby IRB and files on method merge/code block — Carlos da Silva <lists@...>
When I run these two Ruby scripts I got two different answers. Also, if
[#399861] general newbie qustion — George Spak <lists@...>
Been working on Ruby for a few weeks now and am well on my way. I've
[#399875] : Letters 0.1.0 - A tiny debugging library — David Jacobs <david@...>
Hey guys,
Re: Array Creation
On Wed, Sep 26, 2012 at 11:38 PM, Dave Aronson
<rubytalk2dave@davearonson.com> wrote:
> On Wed, Sep 26, 2012 at 3:47 PM, Tony Arcieri <tony.arcieri@gmail.com> wrote:
>
>> You're probably doing an inaccurate comparison. You're asking Ruby to
>> allocate an array with 614,400,000 slots, which in C is equivalent to the
>> same number of pointers, which depending on whether you're on a 32-bit or
>> 64-bit host translates to either 2.4GB or 4.9GB.
>
> It's worse than that. ("He's dead, Jim!") In Ruby it's not just a
> straightforward memory allocation. The Array object itself needs
> additional setup, and for all I know there may be setup overhead for
> each individual slot. A closer (but still not quite direct)
> comparison would be to allocate memory for a huge string, such as:
>
> str = 'x' * 614400000
>
> Depending on your character encoding settings, this might allocate
> anywhere from 0.6G to 2.4G; you can force it higher by using some
> obscure 32-bit character, or of course a longer initial string or
> higher number.
It's yet even worse ("Aye, the haggis is in the fire for sure."):
after the malloc you get empty memory pages which do not exist. The
OS just has to do some minor bookkeeping to remember all the reserved
address space of the process. Only after that memory is actually
accessed memory pages need to be provided. Since in absence of a
second parameter to Array.new all the Ruby Array slots need to be
initialized with 4 (Qnil) and cannot be left at 0 (Qfalse) all pages
need to be actually provided by the OS so they can be written. With
the large number of pages a lot of them are likely swapped out to disk
which is awfully slooooouw. See:
http://rxr.whitequark.org/mri/source/include/ruby/ruby.h#360
Cheers
robert
--
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/