[#366855] what is the correct way to extend native methods? — Maurizio De Santis <desantis.maurizio@...>

Hello!

15 messages 2010/08/01
[#366857] Re: what is the correct way to extend native methods? — James Harrison <oscartheduck@...> 2010/08/01

> return self.select{ |val| val.to_s =~ args[0] } if args.size == 1

[#366864] Re: what is the correct way to extend native methods? — Maurizio De Santis <desantis.maurizio@...> 2010/08/01

James Harrison wrote:

[#366866] Re: what is the correct way to extend native methods? — Brian Candler <b.candler@...> 2010/08/01

Maurizio De Santis wrote:

[#366916] How to remove leading &nbsp; from string — Lucky Nl <lakshmi27.u@...>

Hi

13 messages 2010/08/02

[#366931] Iteration through File.file? misses entries for which File.file?(entry) == true — Kyle Barbour <kyle@...>

Hello everyone,

11 messages 2010/08/02

[#367167] Project name ownership and conflict — Emmanuel Gomez <emmanuel.gomez@...>

I recently had a discussion with a fellow Ruby developer that revealed a

13 messages 2010/08/05

[#367169] Abstracting exception handling — Martin Hansen <mail@...>

Hello,

15 messages 2010/08/05
[#367173] Re: Abstracting exception handling — Brian Candler <b.candler@...> 2010/08/05

> I suspect something is going out of scope and lost?

[#367176] Re: Abstracting exception handling — Martin Hansen <mail@...> 2010/08/05

I was hoping for a setup like this in two files:

[#367177] Re: Abstracting exception handling — Andrew Wagner <wagner.andrew@...> 2010/08/05

What kind of stuff are you doing in my_script.rb? Defining a class? A

[#367179] Re: Abstracting exception handling — Martin Hansen <mail@...> 2010/08/05

Andrew Wagner wrote:

[#367372] Is there any human talkable ruby library? — Sniper Abandon <sathish.salem.1984@...>

Is there any human talk able(like Eliza ) ruby library?

12 messages 2010/08/09

[#367438] Determining whether the running ruby is outdated? — Lars Olsson <lasso@...>

Hi,

14 messages 2010/08/10

[#367540] Ruby is in Grave Danger! — Gregory Brown <gregory.t.brown@...>

Dear Friends,

34 messages 2010/08/11

[#367631] Parsing, BNF, TreeTop, GhostWheel, ... — Philipp Kempgen <lists@...>

Hi,

13 messages 2010/08/12

[#367664] libstdc++ — Pw Ktp <amar.seeam@...>

when trying to install a gem i am getting a 'libstdc++' not installed

24 messages 2010/08/13
[#367666] Re: libstdc++ — Brian Candler <b.candler@...> 2010/08/13

Pw Ktp wrote:

[#367668] Re: libstdc++ — Pw Ktp <amar.seeam@...> 2010/08/13

Brian Candler wrote:

[#367670] Re: libstdc++ — Brian Candler <b.candler@...> 2010/08/13

OK, probably missing headers as Daniel said. Try:

[#367671] Re: libstdc++ — Pw Ktp <amar.seeam@...> 2010/08/13

Brian Candler wrote:

[#367703] Question about learning Ruby effectively — Chan Nguyen <cnguyen@...>

Hi everyone,

12 messages 2010/08/14

[#367747] Help with too many methods — Samuel Sternhagen <samatoms@...>

I am writing a Ruby program that creates different URL queries. Right

11 messages 2010/08/15

[#367781] Unix Philosophy in Ruby Programing — Diego Bernardes <di3go.bernardes@...>

I use Linux about 5 years, but, this year that i started to "use" linux.

22 messages 2010/08/16

[#367833] can i do this in ruby? a simulation process — Bruce Wayner <winshocker@...>

still i don't know how to begin my program on this problem:

56 messages 2010/08/17
[#367834] Re: can i do this in ruby? a simulation process — Jean-Julien Fleck <jeanjulien.fleck@...> 2010/08/17

> Requirements:

[#367837] Re: can i do this in ruby? a simulation process — Bruce Wayner <winshocker@...> 2010/08/17

Jean-Julien Fleck wrote:

[#367839] Re: can i do this in ruby? a simulation process — Jean-Julien Fleck <jeanjulien.fleck@...> 2010/08/17

> Cheers Thanks, anyway i already did writing and other stuff but the only

[#367849] Re: can i do this in ruby? a simulation process — Andrew Wagner <wagner.andrew@...> 2010/08/17

Hmm, I may or may not disagree with you on what the output should be. I

[#367850] Re: can i do this in ruby? a simulation process — Brian Candler <b.candler@...> 2010/08/17

Andrew Wagner wrote:

[#367853] Re: can i do this in ruby? a simulation process — Andrew Wagner <wagner.andrew@...> 2010/08/17

>

[#367858] Re: can i do this in ruby? a simulation process — Bruce Wayner <winshocker@...> 2010/08/17

A superhighway connects one large metropolitan area to another.

[#367862] Re: can i do this in ruby? a simulation process — Andrew Wagner <wagner.andrew@...> 2010/08/17

>

[#367867] Re: can i do this in ruby? a simulation process — Jean-Julien Fleck <jeanjulien.fleck@...> 2010/08/17

> You bring up an interesting point about going

[#367873] Re: can i do this in ruby? a simulation process — Andrew Wagner <wagner.andrew@...> 2010/08/17

Well, it may be interesting, but not in terms of the question originally

[#367911] Re: can i do this in ruby? a simulation process — brabuhr@... 2010/08/17

On Tue, Aug 17, 2010 at 7:34 AM, Andrew Wagner <wagner.andrew@gmail.com> wrote:

[#367922] Re: can i do this in ruby? a simulation process — brabuhr@... 2010/08/17

On Tue, Aug 17, 2010 at 1:19 PM, <brabuhr@gmail.com> wrote:

[#367937] Re: can i do this in ruby? a simulation process — Bruce Wayner <winshocker@...> 2010/08/18

can someone post some code here: I'm only a newbie in ruby :( and

[#367946] Re: can i do this in ruby? a simulation process — Brian Candler <b.candler@...> 2010/08/18

Bruce Wayner wrote:

[#367952] Re: can i do this in ruby? a simulation process — Bruce Wayner <winshocker@...> 2010/08/18

sorry I'm totally suck in ruby here is my code:

[#367965] Re: can i do this in ruby? a simulation process — Brian Candler <b.candler@...> 2010/08/18

> sorry I'm totally suck in ruby here is my code:

[#367967] Re: can i do this in ruby? a simulation process — Brian Candler <b.candler@...> 2010/08/18

>> if $delay1==0;

[#367884] Making File.open work on gzipped files — Martin Hansen <mail@...>

Hello all,

15 messages 2010/08/17
[#367893] Re: Making File.open work on gzipped files — Brian Candler <b.candler@...> 2010/08/17

> This works nicely, but I would like it to work on gzipped files too.

[#367919] Re: Making File.open work on gzipped files — Martin Hansen <mail@...> 2010/08/17

Thanks Brian,

[#367910] Ruby GC question (MRI, JRuby, etc) — Chuck Remes <cremes.devlist@...>

My basic understanding of the garbage collectors in use by the various Ruby runtimes is that they all search for objects from a "root" memory object. If an object cannot be reached from this root, then it is collected.

11 messages 2010/08/17

[#367983] Ruby 1.9.2 is released — "Yuki Sonoda (Yugui)" <yugui@...>

-----BEGIN PGP SIGNED MESSAGE-----

23 messages 2010/08/18
[#368021] Re: [ANN] Ruby 1.9.2 is released — botp <botpena@...> 2010/08/19

2010/8/18 Yuki Sonoda (Yugui) <yugui@yugui.jp>:

[#368023] Re: [ANN] Ruby 1.9.2 is released — botp <botpena@...> 2010/08/19

> weird, since rvm does install it fine.

[#368000] Ruby Code Parsing — Jonathan Bale <webmaster@...>

I have a Perl friend asking me questions about how ruby parses its code.

15 messages 2010/08/18

[#368005] Check existence of object and it's property at the same time — Cory Patterson <coryp@...>

I run into this from time to time and I was wondering if there is a

10 messages 2010/08/18

[#368076] Shoes 3 released — Steve Klabnik <steve@...>

Hey there everyone. We've just released Shoes 3, "Policeman", to

19 messages 2010/08/19

[#368199] A small problem for arrays — Unc88 Unc88 <unc88@...>

I have 2 array. ar_1, ar_2

11 messages 2010/08/21

[#368343] gem list --remote does not work on windows running ruby 1.9.2p0 — botp <botpena@...>

Title says all.

9 messages 2010/08/24

[#368384] ffi-ncurses 0.3.3 — "Sean O'Halpin" <sean.ohalpin@...>

I've just released version 0.3.3 of the ffi-ncurses gem. This fixes

22 messages 2010/08/25
[#368423] Re: ffi-ncurses 0.3.3 — "R.. Kumar 1.9.1 OSX" <sentinel1879@...> 2010/08/26

Sean O'halpin wrote:

[#368500] Re: ffi-ncurses 0.3.3 — "Sean O'Halpin" <sean.ohalpin@...> 2010/08/27

On Thu, Aug 26, 2010 at 11:20 AM, R.. Kumar 1.9.1 OSX

[#368533] Re: ffi-ncurses 0.3.3 — botp <botpena@...> 2010/08/28

On Fri, Aug 27, 2010 at 10:05 PM, Sean O'Halpin <sean.ohalpin@gmail.com> wrote:

[#368538] Re: ffi-ncurses 0.3.3 — Rahul Kumar <sentinel1879@...> 2010/08/28

[#368546] Re: ffi-ncurses 0.3.3 — botp <botpena@...> 2010/08/28

On Sat, Aug 28, 2010 at 2:34 PM, Rahul Kumar <sentinel1879@gmail.com> wrote:

[#368556] Re: ffi-ncurses 0.3.3 — "Sean O'Halpin" <sean.ohalpin@...> 2010/08/28

On Sat, Aug 28, 2010 at 9:47 AM, botp <botpena@gmail.com> wrote:

[#368623] Re: ffi-ncurses 0.3.3 — Rahul Kumar <sentinel1879@...> 2010/08/30

[#368471] how about Array#collect_until — timr <timrandg@...>

I am wondering if anyone has implemented an Array#collect_until method

14 messages 2010/08/27

[#368506] select tr>3 with nokogiri — Pen Ttt <myocean135@...>

13 messages 2010/08/27

[#368690] Namespaces too looooooong — Iain Barnett <iainspeed@...>

Hi,

18 messages 2010/08/31
[#368692] Re: Namespaces too looooooong — Joel VanderWerf <joelvanderwerf@...> 2010/08/31

On 08/30/2010 05:51 PM, Iain Barnett wrote:

[#368694] Re: Namespaces too looooooong — Iain Barnett <iainspeed@...> 2010/08/31

Re: Standard IO streams in Ruby

From: David Masover <ninja@...>
Date: 2010-08-03 02:58:00 UTC
List: ruby-talk #366993
On Sunday, August 01, 2010 01:06:59 pm Jatin Kumar wrote:
> In my rails controller, I am doing the following :
> 
> @output = `g++ j.cpp -o "prog" && ./prog`

Why are you compiling it every time?

From some of your questions, it seems like you're going to let the user enter 
source code, then compile it and run it. Is that true? If so, do you realize 
how insanely dangerous that is?

> If the user has to give input, I open a dialog box on the view with a
> textfield where he/she can enter the input, and the program continues to
> execute.

You can't do that from inside a Rails controller. You can capture IO with 
popen or open3:

http://www.ensta.fr/~diam/ruby/online/ruby-doc-
stdlib/libdoc/open3/rdoc/classes/Open3.html

But that doesn't solve your problem by itself -- you need to send data to and 
from the browser interactively. That means you at least need AJAX, and 
possibly Comet or Web Sockets, combined with some sort of background 
processing.

> I tried doing this :
> 
> @output = `g++ j.cpp -o "prog" && ./prog| tee prog`

That would overwrite your program with the output of your program. Is that 
really what you want to do?

man tee

> In short, how can I get control of stdin, so that whenever the stdin
> waits for some user input, i get to know that it is waiting for the user
> input

You can't do that either, not really. The best you can do is always provide 
that text field, and show the user standard output and standard error, so they 
can see the program prompting them -- and detect the program exiting, so you 
can remove the text field.

If you want to be able to do this efficiently, you're going to need to do a 
lot of reading. It basically boils down to these two options:

http://en.wikipedia.org/wiki/Comet_(programming)
http://www.websockets.org/

But however you implement the updates -- you could always just poll -- but 
you're still going to need one of these:

http://www.tobinharris.com/past/2009/3/9/6-ways-to-run-background-jobs-in-
rubyonrails/

There are probably newer/better alternatives to those, too...

In This Thread