[#387246] newbie question — sunny parker <info@2020proj.com>
i am coming from php and dont seem to quite understand how ruby works
You will need a framework like rails or sinatra to do web "stuff". I
[#387251] irb Pleca ("pipe") teclado — Diego Pereira <dipetete@...>
Buenas noches,
[#387283] ri_for 0.6.0 released--easy lookup of method documentation in irb — Roger Pack <rogerpack2005@...>
Hello all.
On Fri, Sep 2, 2011 at 5:23 AM, Roger Pack <rogerpack2005@gmail.com> wrote:
[#387308] Twofish v0.5.0 released — transfire@...
Twofish 0.5.0 has been released.
[#387311] Newfish v0.5.0 released — transfire@...
Newfish 0.5.0 has been released.
[#387330] installing naive bayes classifier — aya abdelsalam <ayoya_91@...>
Hello
[#387344] Beginner needing help - Writing right-angle triangle program — Kane Williams <theburrick@...>
I've been going through a Haskell tutorial (Just to see what it's like)
Thanks for the reply!
[#387347] Beginner needing help - Writing right-angle triangle program — "Patrick Lynch" <kmandpjlynch@...>
I've been going through a Haskell tutorial (Just to see what it's like)
On Sep 3, 2011, at 7:49 AM, Patrick Lynch wrote:
On Sat, Sep 3, 2011 at 4:36 PM, Gavin Kistner <phrogz@me.com> wrote:
On Sep 3, 2011, at 2:16 PM, Adam Prescott <adam@aprescott.com> wrote:
[#387356] Which version should I download? — Vladimir Van Bauenhoffer <cluny_gisslaren@...>
Im new to programming and Im thinking of downloading and starting with
[#387363] opening a file with variable name — Jeffrey Smith <jesmith2095@...>
Hello All,
On Sat, Sep 3, 2011 at 2:59 PM, Jeffrey Smith <jesmith2095@gmail.com> wrote:
Hello Hassan,
On Sat, Sep 3, 2011 at 3:27 PM, Jeffrey Smith <jesmith2095@gmail.com> wrote:
I changed the slashed and escaped the file path ( I noticed after the fact that my path has spaces), and no change in the error at all.
[#387367] arrays(setters and getters) — jack jones <shehio_22@...>
# whats wrong with that
[#387392] loops problem — jack jones <shehio_22@...>
for (j = @array.length ; j > counter ; j = j-1) # counter is a variable
[#387408] Ruby and XML — Bob Aiello <raiello@...>
Hi Everyone,
[#387424] read .gz file directly — CC Chen <dickyhide@...>
How to read the xxx.gz file directly and don't decompress the file.
[#387451] Conditional expression and return — Philipp Altmann <altmann.work@...>
Hi guys,
[#387468] Grouping an array into sub-arrays. — Intransition <transfire@...>
Is there a method out there already that does anything like this?
On Tue, Sep 6, 2011 at 11:47 PM, Intransition <transfire@gmail.com> wrote:
[#387469] posts on Unix systems programming — Eric Wong <normalperson@...>
I would like to do a series of mailing list posts on the subject of Unix
On Wed, Sep 7, 2011 at 4:30 AM, Eric Wong <normalperson@yhbt.net> wrote:
Eric Wong wrote in post #1020497:
On Wed, Sep 7, 2011 at 12:00 AM, Eric Wong <normalperson@yhbt.net> wrote:
Sean O'Halpin <sean.ohalpin@gmail.com> wrote:
[#387497] TCPSocket recv's nil with gets() if the server crashes? — "Bill W." <sirwillard42@...>
I don't claim to be much of a programmer, and I am also new to RUBY, so
[#387504] Ruby for multiple platforms — James French <James.French@...>
Morning,
[#387513] green shoes on archlinux x64 error... — serialhex <serialhex@...>
ok, so i brought this up in the shoes ML, and they suggested i ask here.
Hi hex,
[#387530] Unexpected behavior of Ruby array — Suvankar Satpati <suvankar.17@...>
I was going through the exercises at http://rubykoans.com/ and got
There's discussion about this at http://www.ruby-forum.com/topic/1393096
On Sep 8, 2011, at 4:08 AM, Adam Prescott wrote:
On Thu, Sep 8, 2011 at 10:15 PM, Gary Wright <gwtmp01@mac.com> wrote:
On Fri, Sep 9, 2011 at 1:36 PM, Robert Klemme
[#387537] help with LOAD_PATH when building from source on Mac OSX Lion — James French <James.French@...>
Hi all,
[#387544] Executing the output of a look — dwight schrute <spambocks@...>
Hi,
On Thu, Sep 8, 2011 at 3:35 PM, dwight schrute <spambocks@yahoo.ca> wrote:
[#387561] undefined method?? — Joe Collins <joec_49@...>
When I press MSG or EXIT buttons I get undefined method errrs for the
[#387563] usp.ruby - Unix systems programming in Ruby list — Eric Wong <normalperson@...>
A mailing list dedicated to Unix systems programming in Ruby
[#387566] Ruby Readline - do something when a key combination is pressed — Marc Heiler <shevegen@...>
Hi,
[#387573] Submitting a URL with Mechanize — dwight schrute <spambocks@...>
Hi,
[#387581] Regex Problem — "Cyril J." <cyril.varghese.jose@...>
Hello all,
[#387586] Creating a hash from two arrays — simon harrison <simonharrison.uk@...>
Hi. Can anyone help with this? I'd like to end with a hash like so:
This works in 1.9 at least.
On Fri, Sep 9, 2011 at 6:15 PM, Aaron D. Gifford <astounding@gmail.com> wrote:
Robert, I seem to remember that it was you who said you'd implemented
[#387588] Strings in a Ruby 1.9 C extension? — "Aaron D. Gifford" <astounding@...>
Hi,
[#387596] newbie ruby installation malloc issue — "mark e." <mark_f_edwards@...>
hi all -
thanks josh.
On Sun, Sep 11, 2011 at 12:42 PM, mark e. <mark_f_edwards@yahoo.com> wrote:
[#387605] Convert ruby.rb to msdos exe file? — Joe Collins <joec_49@...>
I am rewriting numerous vbscript programs in ruby. Is there a way to
[#387607] Large file reading — "Cyril J." <cyril.varghese.jose@...>
Hello all,
On Fri, Sep 9, 2011 at 10:38 PM, Cyril J. <cyril.varghese.jose@gmail.com> wrote:
[#387614] how to write data in binary to a file? — frank hi <yw_hi@163.com>
Hi,
frank hi wrote in post #1021069:
7stud -- wrote in post #1021082:
On Sat, Sep 10, 2011 at 6:52 PM, Brian Candler <b.candler@pobox.com> wrote:
Phillip Gawlowski wrote in post #1021166:
On Sun, Sep 11, 2011 at 5:15 AM, Brian Candler <b.candler@pobox.com> wrote:
[#387624] Not 2 maps — Harry Kakueki <list.push@...>
# I have this
On Sat, Sep 10, 2011 at 9:16 AM, Harry Kakueki <list.push@gmail.com> wrote:
A marginally faster solution would be
On Sat, Sep 10, 2011 at 11:43 PM, Bartosz Dziewoナгki
[#387626] Installing ruby on 5.4 throws errors and doesn't create the make file — sridhar pandurangiah <sridharpandu@...>
I am trying to install ruby on my VPS and I get strange errors. Didn't
[#387646] How do I make output generate a float without an excess numbers of decimal places? — Kane Williams <theburrick@...>
For example, my current code is
On Sep 11, 2011, at 5:05 AM, Kane Williams wrote:
I tried n.round(2) and gave an error - didnt want the 2 argument. I am
[#387652] making an array of strings — Joe Collins <joec_49@...>
I want to make an array of strings, i.e boy, girl, cat dog
[#387653] De-listing of ruby-doc.org on ruby-lang.org? — Matthew -- <astrochase@...>
This may have been brought up before, but as a newbie Ruby programmer,
On Sun, Sep 11, 2011 at 9:24 AM, Matthew -- <astrochase@gmail.com> wrote:
James Gray wrote in post #1021268:
On Sun, Sep 11, 2011 at 10:14 AM, Matthew -- <astrochase@gmail.com> wrote:
[#387663] example of tk drop down menu needed — Joe Collins <joec_49@...>
I want to have a drop down whereby when I click on it, I get a number of
[#387693] ruby 1.9.2 binary distribution for linux ? — "mark e." <mark_f_edwards@...>
hello all -
[#387694] 1.9.3 (and nightly snapshot) error — "mark e." <mark_f_edwards@...>
hello - several people have helped me try to get 1.9.2 installed with no
[#387700] Network user on Linux — Mario Ruiz <tcblues@...>
I am able to get the network user in windows though ENV['username'] but
[#387725] Any downsides to writing paranthesises? — Vladimir Van Bauenhoffer <cluny_gisslaren@...>
Im a newbie programmer who is trying to learn Ruby after having just
On Mon, Sep 12, 2011 at 4:16 PM, Vladimir Van Bauenhoffer
.serialhex .. wrote in post #1021524:
On Tue, Sep 13, 2011 at 05:50:35AM +0900, Vladimir Van Bauenhoffer wrote:
Just a convention. As long as you're just writing for yourself, do
On Tue, Sep 13, 2011 at 05:41:41AM +0900, Bartosz Dziewoナгki wrote:
[#387744] Can monkey patching be discovered when you require a library? — Nick Klauer <klauer@...>
Is it possible to know whether a method, class, or instance was overridden
[#387760] Iterate Array and (pretty)print — dwight schrute <spambocks@...>
Hi,
[#387767] Using a loop to run similar commands — dwight schrute <spambocks@...>
Hi again,
[#387772] Methods not found — Angelo Farias <angeloalvesfarias@...>
Web page throw: ‘undefined method `find' for Forum:Module’
[#387779] recommended way to support multiple APIs from one codebase — Chuck Remes <cremes.devlist@...>
I am the author of the ffi-rzmq gem. It wraps the 0mq [1] (libzmq) library for use by all of the major Ruby runtimes.
[#387784] examples of date, datetime classes needed — Joe Collins <joec_49@...>
I am running ruby 1.8.7 under windows xp, if that matters
[#387806] Integers to English Words. — Nut Shell <conor.starrs@...>
Hi,
[#387811] Get interpreter path — Michal Suchanek <hramrach@...>
Hello,
> get current interpreter path
On Wed, Sep 14, 2011 at 3:35 PM, Michal Suchanek <hramrach@centrum.cz> wrote:
On 14 September 2011 20:47, Phillip Gawlowski <cmdjackryan@gmail.com> wrote:
On Wed, Sep 14, 2011 at 8:56 PM, Michal Suchanek <hramrach@centrum.cz> wrote:
On 14 September 2011 21:06, Phillip Gawlowski <cmdjackryan@gmail.com> wrote:
On Thu, Sep 15, 2011 at 12:09 AM, Michal Suchanek <hramrach@centrum.cz> wrote:
On 15 September 2011 01:12, Phillip Gawlowski <cmdjackryan@gmail.com> wrote:
[#387814] Tough Ruby Homework — Rory Pascua <rorypascua@...>
I'm trying to take a long piece of text, find a word, and get that word
...if it's homework, why are you simply asking us?
[#387823] weird behaviour spawning processes — James French <James.French@...>
Hi,
[#387831] Find memory leak in very complex Ruby app — Tsyren Ochirov <tsyren.hey@...>
everyone!
[#387853] Can I Safely Use Rubinius While Learning? — Aaron Jackson <jacksonaaronc@...>
Greetings,
On Thu, Sep 15, 2011 at 2:33 AM, Aaron Jackson <jacksonaaronc@gmail.com> wrote:
Chris White wrote in post #1022049:
On Thu, Sep 15, 2011 at 10:43:23AM +0900, Aaron Jackson wrote:
[#387861] rake aborted! — "Ravi B." <ravibaswant.in@...>
Hi I am new to the ruby language in rhomobile application and when I
[#387878] Reading Stack Overflow RSS Feed — Samnang Chhun <samnang.chhun@...>
I would like to learn how to build a background running program that
[#387881] debug error in git commamd prompt — "Ravi B." <ravibaswant.in@...>
when i execute the $rake run:bb command it give error message
[#387906] Ruby On-line Courses — "Patil D." <patil.demerji@...>
I'm looking for recommendations for excellent ruby on-line courses or
[#387914] RVM + 1.9.3pre == broken readline — Chad Perrin <code@...>
I have not been able to get readline working with the 1.9.3 preview using
[#387915] Some newbie questions — Vladimir Van Bauenhoffer <cluny_gisslaren@...>
I got some newbie questions which I would very much appreciate if
[#387930] How long does it take to complete Ruby — Samuel Mensah <sasogeek@...>
Hi :)
[#387957] array.map! + delete_if possible ? — Kassym Dorsel <k.dorsel@...>
I have an array of strings that I need to modify. I either need to
On 17.09.2011 00:03, Kassym Dorsel wrote:
[#388001] opencv gem on snow leopard failing to bind to all required symbols — andrew mcelroy <sophrinix@...>
Greetings,
[#388003] Ruby Speed Question — Kevin Anon <oblivious.sage@...>
Wrote my first Ruby program recently for a class assignment where we had
On Sun, Sep 18, 2011 at 10:51 AM, Kevin Anon <oblivious.sage@gmail.com>wrote:
[#388006] download rvm and install later? — 7stud -- <bbxx789_05ss@...>
How do you download rvm without installing it?
On Sun, Sep 18, 2011 at 11:51 AM, 7stud -- <bbxx789_05ss@yahoo.com> wrote:
[#388013] Persistent storage in ruby — Lb Tr <treleven.lloyd@...>
Hi,
[#388017] FTP ports — Reese Chappuis <c0dege3k@...>
I've been writing a super simple terminal FTP client to send text files
maybe try using the connect method to manually specify the port number
[#388032] How-to run a 'minitest' test? — Lb Tr <treleven.lloyd@...>
Hi,
[#388044] — Асет Асет <asetpochta@...>
Hi,
[#388046] How to generate rand (random number) between two numbers? — Асет Асет <asetpochta@...>
Hi,
[#388049] Overloaded constructor — Aya Abdelsalam <ayoya_91@...>
Hello
[#388078] appending \n to each element in an array — Joe Collins <joec_49@...>
I have an array
On Tue, Sep 20, 2011 at 7:27 AM, Joe Collins <joec_49@hotmail.com> wrote:
[#388092] StringIO and encodings — Alex Young <alex@...>
This surprised me:
On Tue, Sep 20, 2011 at 4:18 PM, Alex Young <alex@blackkettle.org> wrote:
Adam Prescott wrote in post #1022947:
On Sep 20, 2011, at 8:32 AM, Alex Young wrote:
[#388097] Ruby on a Mac — Peter Bailey <pbailey@...>
HI,
[#388104] I am confused with installing a gem — "amir e." <aef1370@...>
Hi
[#388123] Turning on a special program at special time and turning off the computer at another special time — "amir e." <aef1370@...>
I decided to write a program in RUBY wherein these items have been done
That sounds like a program a special program a terrorist would write. Are
[#388135] flog 2.5.3 Released — Ryan Davis <ryand-ruby@...>
flog version 2.5.3 has been released!
[#388153] RegEx Help For checking alphnumeric — "Saurabh A." <getsauin@...>
Hi,
[#388164] Parsing xml with an any tag — abhishek asthana <abhishek813@...>
Hi,
[#388171] Ruby Help with HTML Form — "Mike M." <freemcg36@...>
I have html, css, and javascript background but have never touched Ruby.
[#388198] Conditional statements with multiple arguments — "Thomas B." <sinixlol@...>
Good afternoon everyone,
Peter,
I was thinking about this just yesterday. Sure would be nice if their
On Sun, Sep 25, 2011 at 7:10 AM, Intransition <transfire@gmail.com> wrote:
[#388203] Ruby 1.9.3 RC1 is out — "Yuki Sonoda (Yugui)" <yugui@...>
-----BEGIN PGP SIGNED MESSAGE-----
-----BEGIN PGP SIGNED MESSAGE-----
-----BEGIN PGP SIGNED MESSAGE-----
Hello,
-----BEGIN PGP SIGNED MESSAGE-----
[Are there / will there be before final 1.9.3 release] any binary
Bartosz Dziewoナгki wrote in post #1023582:
2011/9/25 Jon Forums <jon.forums@gmail.com>:
Bartosz Dziewoński wrote in post #1024400:
[#388230] Distribute Ruby GUI App (Shoes) — "Maximilian S." <hisako1337@...>
Hi there!
This is the unfortunate current situation. Red shoes is the only one with a
@jake: I decided to post here because I also look for a general solution
[#388238] How about new syntax: "object.\method" returns a Method instance? — Joey Zhou <yimutang@...>
I'm afraid the normal way of creating a Method instance is circuitous
[#388241] FileUtils head-scratcher... — Chuck Remes <cremes.devlist@...>
In one of my projects I need to move all files and subdirectories in a particular directory up on level.
[#388248] Looking for better/familiar approach to command line opts — "Perl J." <perljunkie@...>
So I guess the warning to the reader upfront is... I'm a bit of a Perl
I'm not sure where that syntax for OptionParser came, and Trollop is a
David C. wrote in post #1023941:
On Sun, Sep 25, 2011 at 3:48 PM, Perl J. <perljunkie@gmail.com> wrote:
On Sun, Sep 25, 2011 at 4:03 PM, Josh Cheek <josh.cheek@gmail.com> wrote:
[#388255] ffi-ncurses v0.4.0 released — "Sean O'Halpin" <sean.ohalpin@...>
Hi,
[#388261] problems with Benchmark on ruby 1.8.4 (rhe 5.3) — "Russell F." <russell.fulton@...>
Yes I know the version is ancient -- I'm stuck with it for various
On Mon, Sep 26, 2011 at 6:32 AM, Russell F. <russell.fulton@gmail.com> wrote:
[#388263] shoes-mocks 0.0.2 release — Steve Klabnik <steve@...>
shoes-mocks 0.0.2 has been released!
[#388264] shoes-cucumber 0.0.2 released! — Steve Klabnik <steve@...>
shoes-cucumber 0.0.2 has been released!
On Mon, Sep 26, 2011 at 02:38:25PM +0900, Steve Klabnik wrote:
Derp. I'll push up one a new one in a bit, but until then, like everything I
[#388309] ping sweep and threads — Panagiotis Atmatzidis <ml@...>
Dear Sir(s),
[#388312] got error: ERROR Errno::ECONNABORTED: An established connection was aborted by the software in your — "mohit b." <mohitbansal111@...>
Hi
[#388333] Get all classes from a list of files — Jeroen van Ingen <jeroeningen@...>
I have a list of ruby files. I would like to create objects from all
@Adam
On Sat, Oct 1, 2011 at 6:05 PM, Jeroen van Ingen <jeroeningen@gmail.com> wrote:
[#388342] Ruby Syntax @keywords ||= [ ] — Bhavesh Sharma <sharmabhavesh@...>
Sorry if this comes across as a dumb question, but what does the
[#388354] Tree - Recursive print function — "Giacomo C." <lib.giacomo@...>
Hi There,
On Wed, Sep 28, 2011 at 8:30 PM, Chris White <cwprogram@live.com> wrote:
[#388363] What does "exit_on_fail("initialize") { hook('preinit') { preinit } } " mean? — Yunfeng Xu <hywl51@...>
Hi,
[#388366] IO.readlines will not accept variable with file name Why? — Joda jenson <jodajen2@...>
I am fairly new to Ruby and I am stuck on this. Would someone have a
On Thu, Sep 29, 2011 at 11:14 AM, Joda jenson <jodajen2@yahoo.com> wrote:
On Thu, Sep 29, 2011 at 11:56 AM, Robert Klemme
Robert Klemme wrote in post #1024202:
On Thu, Sep 29, 2011 at 10:39 PM, Joda jenson <jodajen2@yahoo.com> wrote:
Peter Vandenabeele wrote in post #1024266:
On Thu, Sep 29, 2011 at 11:20 PM, Joda jenson <jodajen2@yahoo.com> wrote:
[#388381] Variables, Arrays and Hashes. — "Rob V." <robtvogel@...>
I'm trying to make a card game with Ruby. I created a hash of cards and
On Thu, Sep 29, 2011 at 8:40 PM, Rob V. <robtvogel@gmail.com> wrote:
"Jes炭s Gabriel y Gal叩n" <jgabrielygalan@gmail.com> wrote in post
On Thu, Sep 29, 2011 at 8:54 PM, Rob V. <robtvogel@gmail.com> wrote:
[#388397] simple program, need help — Trevor Harker <koolaidmancometh@...>
File attached.
[#388406] using alias_method before function definition — Reginald Tan <redge.tan@...>
Hi guys, I'm having problems with using alias_method. When i run this
[#388414] How to write a text in red color — Sat nosur <skoppu123@...>
Hi All,
[#388418] RVM seems to fail — Stavros Kefaleas <skiabox12@...>
I have already installed ruby 1.8.7 by default in my system (macos
[#388429] Problem with Ruby 1.9.3 RC1 and YAML files — Marc Heiler <shevegen@...>
I am trying to get ruby 1.9.3 rc1 to work and it fails because of my
Re: TCPSocket recv's nil with gets() if the server crashes?
"Bill W." <sirwillard42@gmail.com> wrote:
> I don't claim to be much of a programmer, and I am also new to RUBY, so
> hopefully this is a good question.
I'll try to explain things with that in mind (but feel free to ask for
clarification)
> I am making a client that can connect to a port and read an unknown
> number of lines, like a server banner.
> Since the server doesn't close the connection, the program will not move
> on. To overcome this, I used select() with a timeout, so it will read
> whatever is in the pipe and move on if it gets nothing more within n
> seconds.
>
> Everything worked fine, until I tried crashing the server. I started to
> get a string of nil coming into the client.
Any method of crashing/terminating the server process (but not the
operating system) causes the operating system/networking stack to close
the TCP connection[1]. This shutdown should be the same as if the
server code explicitly closed it.
> If you kill the server before select() times out, you will get an
> infinite loop of 'nil' in the client.
<snip>
> I could use this 'nil' to show that the server has crashed, but I can't
> help but think it is a symptom of something I've done terribly wrong
> that works for now but will bite me in the future.
It'll work in the future. Break out of the loop if you get nil and
close the socket in the client, too.
> Any thoughts on where this 'nil' is from?
The TCPSocket#gets method is actually IO#gets (an inherited method from
IO, as TCPSocket is a subclass of IO).
If you read the documentation (`ri IO#gets`), you'll see IO#gets
returns nil on the end-of-file condition, indicating there's nothing
left to be done and the IO object should be closed.
Keep in mind you won't be reliably notified in many failure cases (e.g.
the entire server crashing (OS/hardware/power failure), or a link-level
failure (cables cut, switch fails, ...), so you'll still have to rely
on select() to timeout those cases.
[1] If the crashed process is the only process with that connection,
but that appears to be the case for you.
--
Eric Wong