[#387246] newbie question — sunny parker <info@2020proj.com>

i am coming from php and dont seem to quite understand how ruby works

13 messages 2011/09/01

[#387330] installing naive bayes classifier — aya abdelsalam <ayoya_91@...>

Hello

10 messages 2011/09/02

[#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)

12 messages 2011/09/03

[#387356] Which version should I download? — Vladimir Van Bauenhoffer <cluny_gisslaren@...>

Im new to programming and Im thinking of downloading and starting with

17 messages 2011/09/03

[#387392] loops problem — jack jones <shehio_22@...>

for (j = @array.length ; j > counter ; j = j-1) # counter is a variable

13 messages 2011/09/04

[#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

28 messages 2011/09/06

[#387530] Unexpected behavior of Ruby array — Suvankar Satpati <suvankar.17@...>

I was going through the exercises at http://rubykoans.com/ and got

11 messages 2011/09/08

[#387544] Executing the output of a look — dwight schrute <spambocks@...>

Hi,

14 messages 2011/09/08

[#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:

15 messages 2011/09/09

[#387596] newbie ruby installation malloc issue — "mark e." <mark_f_edwards@...>

hi all -

12 messages 2011/09/09

[#387614] how to write data in binary to a file? — frank hi <yw_hi@163.com>

Hi,

11 messages 2011/09/10

[#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

11 messages 2011/09/11

[#387725] Any downsides to writing paranthesises? — Vladimir Van Bauenhoffer <cluny_gisslaren@...>

Im a newbie programmer who is trying to learn Ruby after having just

18 messages 2011/09/12

[#387811] Get interpreter path — Michal Suchanek <hramrach@...>

Hello,

26 messages 2011/09/14
[#387842] Re: Get interpreter path — Phillip Gawlowski <cmdjackryan@...> 2011/09/14

On Wed, Sep 14, 2011 at 3:35 PM, Michal Suchanek <hramrach@centrum.cz> wrot=

[#387844] Re: Get interpreter path — Michal Suchanek <hramrach@...> 2011/09/14

On 14 September 2011 20:47, 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

18 messages 2011/09/14

[#387853] Can I Safely Use Rubinius While Learning? — Aaron Jackson <jacksonaaronc@...>

Greetings,

18 messages 2011/09/15

[#387915] Some newbie questions — Vladimir Van Bauenhoffer <cluny_gisslaren@...>

I got some newbie questions which I would very much appreciate if

14 messages 2011/09/15

[#388003] Ruby Speed Question — Kevin Anon <oblivious.sage@...>

Wrote my first Ruby program recently for a class assignment where we had

12 messages 2011/09/18

[#388078] appending \n to each element in an array — Joe Collins <joec_49@...>

I have an array

13 messages 2011/09/20

[#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

11 messages 2011/09/21
[#388124] Re: Turning on a special program at special time and turning off the computer at another special time — andrew mcelroy <sophrinix@...> 2011/09/21

That sounds like a program a special program a terrorist would write. Are

[#388198] Conditional statements with multiple arguments — "Thomas B." <sinixlol@...>

Good afternoon everyone,

18 messages 2011/09/24

[#388203] Ruby 1.9.3 RC1 is out — "Yuki Sonoda (Yugui)" <yugui@...>

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

19 messages 2011/09/24
[#388208] Re: [ANN] Ruby 1.9.3 RC1 is out — Quintus <sutniuq@...> 2011/09/24

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

[#388209] Re: [ANN] Ruby 1.9.3 RC1 is out — Chris White <cwprogram@...> 2011/09/24

[#388214] Re: [ANN] Ruby 1.9.3 RC1 is out — Quintus <sutniuq@...> 2011/09/24

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

[#388216] Re: [ANN] Ruby 1.9.3 RC1 is out — Yusuke Endoh <mame@...> 2011/09/24

Hello,

[#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

14 messages 2011/09/25

[#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

11 messages 2011/09/28

[#388342] Ruby Syntax @keywords ||= [ ] — Bhavesh Sharma <sharmabhavesh@...>

Sorry if this comes across as a dumb question, but what does the

11 messages 2011/09/28

[#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

13 messages 2011/09/29
[#388368] Re: IO.readlines will not accept variable with file name Why? — Robert Klemme <shortcutter@...> 2011/09/29

On Thu, Sep 29, 2011 at 11:14 AM, Joda jenson <jodajen2@yahoo.com> wrote:

[ANN] ri_for 0.6.0 released--easy lookup of method documentation in irb

From: Roger Pack <rogerpack2005@...>
Date: 2011-09-01 21:23:31 UTC
List: ruby-talk #387283
Hello all.
Pleased to announce the release of "ri_for" gem v 0.6.0

Changes:
0.6.0: jruby support, add File.method(:delete).ri_for

more information see https://github.com/rdp/ri_for

README contents:

The ri_for gem allows "runtime documentation lookup", it show a method's
source code/comments, ri (if available), arity, parameters,
etc. all at runtime (for example within an irb session).

Don't know what a method does? Look it up!
It has proven quite useful, and I wouldn't do a ruby-debug session
without it--you might like it.

Examples:


>> File.ri_for :delete

sig: File.delete arity -1
appears to be a c method
Searching ri for
sig: File.delete arity -1
...
----------------------------------------------------------- File::delete
     File.delete(file_name, ...)  => integer
     File.unlink(file_name, ...)  => integer

------------------------------------------------------------------------
     Deletes the named files, returning the number of names passed as
     arguments. Raises an exception on any error. See also +Dir::rmdir+.

(end ri)
=> "sig: File.delete arity -1"

(or alternatively use >> File.method(:delete).ri_for)

or, given this dynamically generated class, it can still show runtime
parameter information:

>> class A;
    def go(a); end;
   end

>> A.new.ri_for :go

sig: A#go arity 1
def go(a)
  # do nothing
end
Parameters: go(a)
Searching ri for
sig: A#go arity 1
...
Nothing known about A
(end ri)
=> "Parameters: go(a)"

Or (my favorite) use it within debug session:

 74       assert(true == false)

(rdb:1) ri_for :assert
#<Method: StoreControllerTest(Test::Unit::Assertions)#assert>
arity: -2
ri for Test::Unit::Assertions#assert
------------------------------------------ Test::Unit::Assertions#assert
     assert(boolean, message=nil)

     From gem test-unit-2.0.1
------------------------------------------------------------------------
     Asserts that +boolean+ is not false or nil.

     Example:

       assert [1, 2].include?(5)

(end ri)
def assert(boolean, message = nil)
  _wrap_assertion do
    assert_block("assert should not be called with a block.") do
      (not block_given?)
    end
    assert_block(build_message(message, "<?> is not true.", boolean)) {
boolean }
  end
end
Parameters: assert(boolean, message = nil)

Thus, you can look at methods' source/rdocs without having to run the
methods and step into them.  Deftly convenient.

-- 
Posted via http://www.ruby-forum.com/.

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