[#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@...>

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

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[#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

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[#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:

Re: How about new syntax: "object.\method" returns a Method instance?

From: Yossef Mendelssohn <ymendel@...>
Date: 2011-09-29 14:44:51 UTC
List: ruby-talk #388379
On Sep 28, 8:08=A0pm, Josh Cheek <josh.ch...@gmail.com> wrote:

> While I'm not sure how I feel about this particular syntax, I think that
> better support for getting methods would have some fairly profound change=
s
> to Ruby code. Right now we think this isn't really worth it, because we
> don't really do things like this, because the syntax is awkward. But if i=
t
> were easier, I think we'd see a lot more of it.
>
> An example from yesterday, I wrote `File.open csv_name,
> &MembersFromCSV.method(:populate)`
>
> And I honestly almost took it out (and still might), because even though =
I
> think this is the right way to do it, it's cumbersome and you kind of hav=
e
> tolook at it and think about things for a while. The equivalent is
> `File.open(csv_name) { |file| MembersFromCSV.populate file }` but it's ki=
nd
> of obnoxious that you have to create a superfluous block that does nothin=
g
> but forward its arguments to the real target when you could pass the real
> target instead of the block if there were a bit better support for this s=
ort
> of thing.

I had a strong enough reaction to this that I started responding evne
before I knew what I wanted instead. Yes, it's somewhat obnoxious that
you have to create a superfluous block to forward the argument on.
It's less obnoxious to take the method and use #to_proc (via the &),
and it's partially syntax that's a problem there, or at least that it
looks odd because we're not used to it. But I couldn't think what
would be better. I'd like to see something like `File.open csv_name,
MembersFromCSV.method(:populate)`, but that could have its own
problems.

You know, I'm not at all a fan of stabby proc, and maybe more so now
that the arrow could be used here. Something like `File.open csv_name,
-> MembersFromCSV.method(:populate)` has some merit as far as looks
go. Maybe? Am I crazy?

Actually, I think I'm crazy. Just get used to & and #to_proc.

--
-yossef

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