[#14464] who uses Python or Ruby, and for what? — ellard2@...01.fas.harvard.edu (-11,3-3562,3-3076)

A while ago I posted a request for people to share their experiences

12 messages 2001/05/01

[#14555] Ruby as a Mac OS/X scripting language — Dave Thomas <Dave@...>

10 messages 2001/05/02

[#14557] Arggg Bitten by the block var scope feature!!! — Wayne Scott <wscott@...>

13 messages 2001/05/02

[#14598] Re: Arggg Bitten by the block var scope feature!!! — "Conrad Schneiker" <schneik@...>

# On Thu, 3 May 2001, Wayne Scott wrote:

9 messages 2001/05/03

[#14636] Yet another "About private methods" question — Eric Jacoboni <jacoboni@...2.fr>

I'm still trying to figure out the semantics of private methods in Ruby.

39 messages 2001/05/04
[#14656] Re: Yet another "About private methods" question — Dave Thomas <Dave@...> 2001/05/04

Eric Jacoboni <jaco@teaser.fr> writes:

[#14666] Ruby and Web Applications — "Chris Montgomery" <monty@...> 2001/05/04

Greetings from a newbie,

[#14772] Re: Ruby and Web Applications — Jim Freeze <jim@...> 2001/05/07

On Sat, 5 May 2001, Chris Montgomery wrote:

[#14710] Why's Ruby so slow in this case? — Stefan Matthias Aust <sma@3plus4.de>

Sure, Ruby, being interpreted, is slower than a compiled language.

12 messages 2001/05/05

[#14881] Class/Module Information — "John Kaurin" <jkaurin@...>

It is possible to modify the following code to produce

18 messages 2001/05/09

[#15034] Re: calling .inspect on array/hash causes core dump — ts <decoux@...>

>>>>> "A" == Andreas Riedl <viisi@chello.at> writes:

15 messages 2001/05/12

[#15198] Re: Q: GUI framework with direct drawing ca pabilities? — Steve Tuckner <SAT@...>

Would it be a good idea to develop a pure Ruby GUI framework built on top of

13 messages 2001/05/15

[#15234] Pluggable sorting - How would you do it? — "Hal E. Fulton" <hal9000@...>

Hello all,

16 messages 2001/05/16

[#15549] ColdFusion for Ruby — "Michael Dinowitz" <mdinowit@...2000.com>

I don't currently use Ruby. To tell the truth, I have no real reason to. I'd

12 messages 2001/05/22

[#15569] I like ruby-chan ... — Rob Armstrong <rob@...>

Ruby is more human(e) than Python. We already have too many animals :-).

15 messages 2001/05/23

[#15601] How to avoid spelling mistakes of variable names — ndrochak@... (Nick Drochak)

Since Ruby does not require a variable to be declared, do people find

13 messages 2001/05/23

[#15734] java based interpreter and regexes — "Wayne Blair" <wayne.blair@...>

I have been thinking about the java based ruby interpreter project, and I

48 messages 2001/05/25

[#15804] is it possible to dynamically coerce objects types in Ruby? — mirian@... (Mirian Crzig Lennox)

Greetings to all. I am a newcomer to Ruby and I am exploring the

13 messages 2001/05/27
[#15807] Re: is it possible to dynamically coerce objects types in Ruby? — matz@... (Yukihiro Matsumoto) 2001/05/27

Hi,

[#15863] Experimental "in" operator for collections — Stefan Matthias Aust <sma@3plus4.de>

There's one thing where I prefer Python over Ruby. Testing whether an

13 messages 2001/05/28

[#15925] Re: Block arguments vs method arguments — ts <decoux@...>

>>>>> "M" == Mike <mike@lepton.fr> writes:

43 messages 2001/05/29
[#16070] Re: Block arguments vs method arguments — "Hal E. Fulton" <hal9000@...> 2001/05/31

----- Original Message -----

[#16081] Re: Block arguments vs method arguments — Sean Russell <ser@...> 2001/05/31

On Thu, May 31, 2001 at 11:53:17AM +0900, Hal E. Fulton wrote:

[#16088] Re: Block arguments vs method arguments — Dan Moniz <dnm@...> 2001/05/31

At 11:01 PM 5/31/2001 +0900, Sean Russell wrote:

[#15954] new keyword idea: tryreturn, tryturn or done — Juha Pohjalainen <voidjump@...>

Hello everyone!

12 messages 2001/05/29

[ruby-talk:15191] Re: Discussion on new Ruby features

From: Angus McIntyre <angus@...>
Date: 2001-05-15 17:15:58 UTC
List: ruby-talk #15191
At 1:52 am +0900 16.05.2001, Christian Szegedy wrote:
>Matz wrote:
>>  I'm interested in *optional* argument type specifier as in Guy
>
>Nice to know this!!!
>Have you considered type (of course OPTIONAL) type restriction not just
>for the arguments, but also for the variables?

You might want to take a look at the way Common LISP does this stuff. 
LISP is largely an untyped language, but Common LISP allows you to 
specify types in a couple of ways, with a view to (a) checking the 
correctness of your program, and (b) allowing you to benefit from any 
compiler optimizations that may be going.

The forms used are 'declare' (which is a general purpose means of 
letting the compiler know how it can optimize code, and covers more 
than just typing) and 'the'. For example, you can write:

	(declare (integer x))

at the start of a block to let the compiler know that the variable 
'x' will always be an integer. Using 'the', you can also specify the 
results that you expect to get back from particular chunks of code, 
i.e.

	(the integer (+ x 3))

See:

	<http://ringer.cs.utsa.edu/research/AI/cltl/clm/
	 node105.html#SECTION001320000000000000000>

	<http://ringer.cs.utsa.edu/research/AI/cltl/clm/
	 node106.html#SECTION001330000000000000000>

for more information.

I'm not saying that Ruby should follow LISP syntax (eeek!!!), but 
simply that (a) this might be a source of interesting ideas and (b) 
there is precedent for this kind of thing.

	A
-- 
angus@pobox.com                             http://pobox.com/~angus

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