[#17198] enhancing Ruby error messages for out of the bound constant Fixnum? — Guillaume Cottenceau <gc@...>

Hi,

11 messages 2001/07/03

[#17206] /* */ comments — Dave Thomas <Dave@...>

43 messages 2001/07/04
[#17207] Re: /* */ comments — Stephen White <spwhite@...> 2001/07/04

On Wed, 4 Jul 2001, Dave Thomas wrote:

[#17251] Re: /* */ comments — Sean Chittenden <sean-ruby-talk@...> 2001/07/04

> Over on http://www.rubygarden.org, dv posted a patch to parse.y that

[#17268] Re: /* */ comments — matz@... (Yukihiro Matsumoto) 2001/07/05

Hi,

[#17212] Ruby 1.6.4 Win32 .exe installer question — A Bull in the China Shop of Life <feoh@...>

Folks;

11 messages 2001/07/04

[#17225] Re: /* */ comments — Arnaud Meuret <ameuret@...4you.com>

|From: Mark Slagell [mailto:ms@iastate.edu]

17 messages 2001/07/04

[#17240] Ruby Mascot/logo — "Kevin Powick" <kpowick@...>

Hi there.

14 messages 2001/07/04

[#17281] Inheritance — "Aleksei Guzev" <aleksei.guzev@...>

15 messages 2001/07/05
[#17282] Re: Inheritance — ts <decoux@...> 2001/07/05

>>>>> "A" == Aleksei Guzev <aleksei.guzev@bigfoot.com> writes:

[#17348] Adding a method to a class at the top-level — Guillaume Cottenceau <gc@...>

Comrades,

14 messages 2001/07/05

[#17482] Aliases for class methods — "HarryO" <harryo@...>

Say I wanted to write my own version of File#open that adds some

23 messages 2001/07/08

[#17511] Ruby on Slashdot — jweirich@...

Ruby is currently mentioned on Slashdot. I posted some references.

29 messages 2001/07/08
[#17512] Re: Ruby on Slashdot — Tobias Reif <tobiasreif@...> 2001/07/08

Interesting...

[#17518] Re: Ruby on Slashdot — matz@... (Yukihiro Matsumoto) 2001/07/09

Hi,

[#17519] Re: Ruby on Slashdot — "James (ruby-talk)" <ruby@...> 2001/07/09

> |I thought about that too; what about Ruby being a standard?

[#17525] Re: Ruby on Slashdot — matz@... (Yukihiro Matsumoto) 2001/07/09

Hi,

[#17536] Re: Ruby on Slashdot — David Alan Black <dblack@...> 2001/07/09

Hello --

[#17572] Re: Constants and Variables — "HarryO" <harryo@...>

> If you want objects that don't change, try Object#freeze,

25 messages 2001/07/10

[#17732] Re: Array#sort! returns nil when array empty — hfulton@...

> Array#sort! returns nil if the array is empty, whereas ri

32 messages 2001/07/12
[#17736] Re: Array#sort! returns nil when array empty — Paul Brannan <pbrannan@...> 2001/07/12

On Fri, 13 Jul 2001 hfulton@pop-server.austin.rr.com wrote:

[#17739] Re: Array#sort! returns nil when array empty — ts <decoux@...> 2001/07/12

>>>>> "P" == Paul Brannan <pbrannan@atdesk.com> writes:

[#17746] Re: Array#sort! returns nil when array empty — Paul Brannan <pbrannan@...> 2001/07/12

On Fri, 13 Jul 2001, ts wrote:

[#17747] What is Array#- ? — Jim Freeze <jim@...> 2001/07/12

While following the Array thread, I noticed the minus

[#17752] Re: What is Array#- ? — Dave Thomas <Dave@...> 2001/07/12

Jim Freeze <jim@freeze.org> writes:

[#17753] Re: What is Array#- ? — Jim Freeze <jim@...> 2001/07/12

On Fri, 13 Jul 2001, Dave Thomas wrote:

[#17833] Extending objects — "Aleksei Guzev" <aleksei.guzev@...>

16 messages 2001/07/14
[#17834] Ruby-newbie seeks help with Rubywin starting IRB — "Euan Mee" <lucid@...> 2001/07/14

Once I fire up Rubywin, and then invoke _R_uby _I_rb from the

[#17839] Re: Ruby-newbie seeks help with Rubywin starting IRB — A Bull in the China Shop of Life <feoh@...> 2001/07/14

At 07:05 PM 7/14/01 +0900, Euan Mee spewed forth:

[#17859] Re: Creating methods on the fly — "HarryO" <harryo@...>

I

18 messages 2001/07/15

[#17925] Movement in scripting language communities to integrate XML-RPC — gsemones@... (Guerry Semones)

Greetings,

20 messages 2001/07/16
[#17934] Re: Movement in scripting language communities to integrate XML-RPC — Tobias Reif <tobiasreif@...> 2001/07/16

"out of the box" by including

[#18018] Broadcasting data — "HarryO" <harryo@...>

Does someone have an example of broadcasting data around a network using

12 messages 2001/07/18

[#18023] [ANN] libxslt Rubified! — Wai-Sun Chia <waisun.chia@...>

Hello,

16 messages 2001/07/18
[#18024] Re: [ANN] libxslt Rubified! — TAKAHASHI Masayoshi <maki@...> 2001/07/18

Wai-Sun Chia <waisun.chia@compaq.com> wrote:

[#18100] Looking for Ruby programming exercises — Wayne Vucenic <wvucenic@...> 2001/07/19

I've been learning Ruby, mostly with the Pickaxe book, and it's going

[#18188] Newbie. Sinking fast. Please help. — Matt <matt@...>

I bought Programming Ruby a number of months back and finally have an opportunity to try out Ruby. However, I can't get it to build. Actually, that's not quite accurate. It builds fine. It won't pass 'make test'.

12 messages 2001/07/20

[#18193] Re: 99 bottles of beer — "Dat Nguyen" <thucdat@...>

18 messages 2001/07/20
[#18204] Re: 99 bottles of beer — Glen Starchman <glen@...> 2001/07/20

99.downto(0){|x|w=" on the wall";u="#{x!=0?eval(x.to_s):'no more'}

[#18306] Ruby as opposed to Python? — "Mark Nenadov" <mnenadov@...>

Hello. I have toyed with the idea of trying Ruby out for some time now.

118 messages 2001/07/22
[#18759] Re: Ruby as opposed to Python? — Paul Prescod <paulp@...> 2001/07/29

Yukihiro Matsumoto wrote:

[#18774] Re: Ruby as opposed to Python? — "Florian G. Pflug" <fgp@...> 2001/07/30

On Mon, Jul 30, 2001 at 05:58:22AM +0900, Paul Prescod wrote:

[#18393] Trouble Using FXRuby on cygwin/Windows NT — rgilbert1@... (Robbie Gilbert)

Hi,

10 messages 2001/07/23

[#18566] Which database should I use? — Urban Hafner <the-master-of-bass@...>

Hello everybody,

17 messages 2001/07/26
[#18575] Re: Which database should I use? — Urban Hafner <the-master-of-bass@...> 2001/07/26

[#18582] Re: Which database should I use? — Michael Neumann <neumann@...> 2001/07/26

Urban Hafner wrote:

[ruby-talk:17788] Re: Null Pattern

From: Keith Hodges <K.Hodges@...>
Date: 2001-07-13 12:46:08 UTC
List: ruby-talk #17788
Aleksi Niemelwrote:

> Matz:
>
> > |Q4: is there some way to redefinine "if (null) then ... else
> > .... end"
> > |to do neither the then nor the else statement!
> >
> > Sorry, there's no such way.  I've learned users often go beyond
> > designers' imagination.
>
> Lame work-around:
>
> def null
>   raise "bypassing both then and else"
> end
>
> puts "before if"
> begin
>   if null then
>     puts "then"
>   else
>     puts "else"
>   end
> rescue
>   puts "whee... skipped if"
> end
> puts "after if"
>
> before if
> whee... skipped if
> after if
>
>         - Aleksi

Matz wrote:

>
> But this is intersting.  If someone would come up with nice solution
> proposal, I'd like to consider implementing it (maybe).
>
>                                                         matz.

I think that a special exception handling mechanism could be implemented to give this behaviour.
So far in exception handlers we have concepts such as 'return' and 'retry', the new one could be called 'continue' or 'break'.

The behaviour would be such that it effectively assumes the presence of a rescue clause after every statement, and so a 'continue' simply abandons the current calling chain, returns a 'null' and proceeds to the next statement.

This could be used to skip the then .... else ... actions as demonstrated above, and also to implement solution to Q3 below

----
Q.3 given the code below is there a way to exit a call chain as follows

a=null
a.nice.way.to.avoid.testing.for.nil.all.of.the.time
[rescue] #assumed
    puts "having raised an axception, the handlers behaviour is to 'continue' which will arrive here"
[end]
#I want to get <HERE> as fast as possible!

----

I dont know how the performance of exception handling compares to that of message sending. If exception handling is that bad then it might be more efficient just to do the 11 message sends (in the example)

------

Well Matz, I hope that the material I have sent to the list inspires you! I think it would be great to have null implemented as part of the Ruby language!



regards

Keith


p.s Now all I have to do is persuade you to change the indexing of arrays to start from 1 rather 0 and we would have a perfect scripting language. :-)

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