[#363639] Parsing geonames — 12 34 <rubyforum@...>

A Ruby newbie having trouble getting results back from geonames

16 messages 2010/06/02
[#363641] Re: Parsing geonames — Michael Fellinger <m.fellinger@...> 2010/06/02

On Wed, Jun 2, 2010 at 2:57 PM, 12 34 <rubyforum@web.knobby.ws> wrote:

[#363642] Re: Parsing geonames — 12 34 <rubyforum@...> 2010/06/02

Michael Fellinger wrote:

[#363646] installation issue with Ruby gems on Ubuntu 8.04 — Santosh Dvn <santoshdvn@...>

Hi I am installing ruby gems on ubuntu 8.04 .. while installing i got

14 messages 2010/06/02

[#363662] having a class method called only one time ? — unbewusst.sein@... (Une B騅ue)

I'd like having a class method called only one time ?

12 messages 2010/06/02

[#363756] comparing objects — Anderson Leite <andersonlfl@...>

How can I compare two objects and get true if some of his atributes are

48 messages 2010/06/03
[#364122] Re: comparing objects — Rein Henrichs <reinh@...> 2010/06/10

On 2010-06-10 06:59:40 -0700, Robert Dober said:

[#363764] Documenting Ruby 1.9: Ebook or Wiki? — Run Paint Run Run <runrun@...>

I'm writing a free ebook about Ruby 1.9 at http://ruby.runpaint.org/ .

17 messages 2010/06/04
[#363765] Re: Documenting Ruby 1.9: Ebook or Wiki? — Mohit Sindhwani <mo_mail@...> 2010/06/04

On 4/6/2010 11:30 AM, Run Paint Run Run wrote:

[#363775] Looking for ORM for 'legacy' database. — Dave Howell <groups.2009a@...>

I feel I should start with some pre-emptive apologies. I used to =

28 messages 2010/06/04
[#363895] Re: Looking for ORM for 'legacy' database. — Phrogz <phrogz@...> 2010/06/06

On Jun 4, 3:29=A0am, Dave Howell <groups.20...@grandfenwick.net> wrote:

[#363975] Re: Looking for ORM for 'legacy' database. — Dave Howell <groups.2009a@...> 2010/06/07

[#363883] inject method of Array class — RichardSchollar <richardgschollar@...>

I have only just started using Ruby (and am a total noob, in case this

14 messages 2010/06/06

[#363944] Complex numbers contradiction? — Andrew Duncan <andrew.duncan@...>

This looks correct:

13 messages 2010/06/07
[#363951] Re: Complex numbers contradiction? — Robert Dober <robert.dober@...> 2010/06/07

On Mon, Jun 7, 2010 at 9:01 PM, Andrew Duncan <andrew.duncan@sonos.com> wrote:

[#364010] Rubyzip - `dup': can't dup NilClass (TypeError) — Luka Stolyarov <lukich@...>

Hello. I've trying to figure out rubyzip. Here's the code I had:

11 messages 2010/06/08

[#364101] Why private #binding? — Intransition <transfire@...>

Why is #binding a private method? I end up doing a lot of this:

13 messages 2010/06/10

[#364268] State of the union for Ruby CLI libraries? — John Feminella <johnf@...>

I am starting construction on a somewhat complicated internal

18 messages 2010/06/13

[#364273] Loading a module without polluting my namespace — Hagbard Celine <sin3141592@...>

Hey folks!

20 messages 2010/06/13

[#364330] shorthand — Roger Pack <rogerpack2005@...>

I read this once:

14 messages 2010/06/14

[#364342] Placement of require() and missing symbols — Eric MSP Veith <eveith@...>

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16 messages 2010/06/15
[#364365] Re: Placement of require() and missing symbols — Kirk Haines <wyhaines@...> 2010/06/15

On Mon, Jun 14, 2010 at 7:18 PM, Eric MSP Veith

[#364371] datamapper blues — Martin DeMello <martindemello@...>

I'm investigating the use of DataMapper to convert an old project with

14 messages 2010/06/15

[#364402] Getting rid of self — Ralph Shnelvar <ralphs@...32.com>

22 messages 2010/06/16
[#364440] Re: Getting rid of self — Josh Cheek <josh.cheek@...> 2010/06/16

On Wed, Jun 16, 2010 at 4:31 AM, Ralph Shnelvar <ralphs@dos32.com> wrote:

[#364415] Android apps using ruby — Lakshmanan Muthukrishnan <lakshmanan@...>

Hi,

16 messages 2010/06/16
[#364439] Re: Android apps using ruby — Andrew Kaspick <akaspick@...> 2010/06/16

Lakshmanan Muthukrishnan wrote:

[#364479] Re: Android apps using ruby — Lakshmanan Muthukrishnan <lakshmanan@...> 2010/06/17

Andrew Kaspick wrote:

[#364496] nothing new in ruby_core for four days ? — Michel Demazure <michel@...>

The Ruby Core forum has no new entry since four days ago.

15 messages 2010/06/17
[#364498] Re: nothing new in ruby_core for four days ? — Brian Candler <b.candler@...> 2010/06/17

Michel Demazure wrote:

[#364529] Dear gem: still no zlib. — Dave Howell <groups.2009a@...>

I really really regret ever installing SnowLeopard.=20

16 messages 2010/06/17

[#364580] String comparison. Why does Ruby consider this true? — Abder-rahman Ali <abder.rahman.ali@...>

When I try for example to compare the following strings in Ruby, I get

13 messages 2010/06/18
[#364584] Re: String comparison. Why does Ruby consider this true? — Josh Cheek <josh.cheek@...> 2010/06/18

On Fri, Jun 18, 2010 at 12:46 PM, Abder-rahman Ali <

[#364628] Random Points within a Circle (#234) — Daniel Moore <yahivin@...>

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21 messages 2010/06/19
[#364696] Re: [QUIZ] Random Points within a Circle (#234) — Caleb Clausen <vikkous@...> 2010/06/21

On 6/19/10, Daniel Moore <yahivin@gmail.com> wrote:

[#364641] Namespacing a class — Eric MSP Veith <eveith@...>

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18 messages 2010/06/20

[#364815] Count substrings in string, scan too slow — Danny Challis <dannychallis@...>

Hello everyone,

18 messages 2010/06/24
[#364817] Re: Count substrings in string, scan too slow — Jes俍 Gabriel y Gal疣 <jgabrielygalan@...> 2010/06/24

On Thu, Jun 24, 2010 at 5:04 PM, Danny Challis <dannychallis@gmail.com> wro=

[#364825] Re: Count substrings in string, scan too slow — Robert Klemme <shortcutter@...> 2010/06/24

2010/6/24 Jes=FAs Gabriel y Gal=E1n <jgabrielygalan@gmail.com>:

[#364850] Happy Intransition Day! — Ryan Davis <ryand-ruby@...>

Happy Intransition Day!

23 messages 2010/06/24

[#364930] Ruby in JavaScript, all projects are dead? — Alexey Petrushin <axyd80@...>

Hello, recently I've examined some of the projects that trying to bring

18 messages 2010/06/27

[#364988] Reading String Data as a File — Doug Jolley <ddjolley@...>

I use Net::HTTP to collect some data as a string. I now need to pass

25 messages 2010/06/29
[#364989] Re: Reading String Data as a File — Ryan Davis <ryand-ruby@...> 2010/06/29

[#364996] Re: Reading String Data as a File — Brian Candler <b.candler@...> 2010/06/29

Ryan Davis wrote:

[#365016] Re: Reading String Data as a File — Doug Jolley <ddjolley@...> 2010/06/29

> If it takes only a pathname argument, then you're

[#365024] Re: Reading String Data as a File — Tony Arcieri <tony.arcieri@...> 2010/06/29

On Tue, Jun 29, 2010 at 11:50 AM, Doug Jolley <ddjolley@gmail.com> wrote:

[#365036] Re: Reading String Data as a File — Robert Klemme <shortcutter@...> 2010/06/30

2010/6/29 Tony Arcieri <tony.arcieri@medioh.com>:

[#365049] Re: Reading String Data as a File — Brian Candler <b.candler@...> 2010/06/30

Robert Klemme wrote:

[#365039] pathname.rb:270: warning: `*' interpreted as argument prefix — "R.. Kumar 1.9.1 OSX" <sentinel1879@...>

/opt/local/lib/ruby1.9/1.9.1/pathname.rb:270: warning: `*' interpreted

12 messages 2010/06/30
[#365048] Re: pathname.rb:270: warning: `*' interpreted as argument prefix — Josh Cheek <josh.cheek@...> 2010/06/30

On Wed, Jun 30, 2010 at 6:11 AM, R.. Kumar 1.9.1 OSX <sentinel1879@gmail.com

Re: comparing objects

From: Robert Dober <robert.dober@...>
Date: 2010-06-06 17:23:29 UTC
List: ruby-talk #363878
On Sun, Jun 6, 2010 at 1:18 AM, Wilson Bilkovich <wilsonb@gmail.com> wrote:
> On Sat, Jun 5, 2010 at 4:09 PM, Robert Dober <robert.dober@gmail.com> wrote:
>> I must have made a stupid mistake in my example code, however, this is
>> no reason to mess with #eql? and #hash, Be warned.
>> In that case I stick with Robert's advice: Do not use Array#&, even
>> MPing Array with something like #intersect_by would be preferable.
>
> Implementing this behavior with your own object types is the whole
> point of the Ruby core API.
> I find myself struggling to understand the mindset that would prefer
> re-opening Array and adding something over using the
> already-there-for-a-reason Enumerable and Array interfaces.
Really? What do we want to do? We want Array#& work with a tailor made
comparision.
I accept that  attitude, although I would not recommend it.
Now I would expect that the responsibility for changing the semantics
of an Array method should be in the Array class, or a module closely
related to class. As Array#& needs to invoke client object's methods,
we have to change those. And reality is that Hash methods invoke those
same client methods. Thus I would not say that #hash? and #eql? are
already here for the reason you stated.
>
> Using eql? and hash is not 'messing with' them, unless you don't take
> the time to understand your tools.
I agree that was bad style from my side, sorry. However I maintain
that the context does not really justify their modifications as the
semantic impact is much greater than wanted, unless of course OP wants
hashes to believe exactly as they would after the aforementioned
modifications.

Cheers
Robert
-- 
The best way to predict the future is to invent it.
-- Alan Kay

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