[#3109] Is divmod dangerous? — Dave Thomas <Dave@...>

14 messages 2000/06/06

[#3149] Retrieving the hostname and port in net/http — Roland Jesse <jesse@...>

Hi,

12 messages 2000/06/07

[#3222] Ruby coding standard? — Robert Feldt <feldt@...>

16 messages 2000/06/09

[#3277] Re: BUG or something? — Aleksi Niemel<aleksi.niemela@...>

> |I am new to Ruby and this brings up a question I have had

17 messages 2000/06/12
[#3281] Re: BUG or something? — Dave Thomas <Dave@...> 2000/06/12

Aleksi Niemel<aleksi.niemela@cinnober.com> writes:

[#3296] RE: about documentation — Aleksi Niemel<aleksi.niemela@...>

> I want to contribute to the ruby project in my spare time.

15 messages 2000/06/12

[#3407] Waffling between Python and Ruby — "Warren Postma" <embed@...>

I was looking at the Ruby editor/IDE for windows and was disappointed with

19 messages 2000/06/14

[#3410] Exercice: Translate into Ruby :-) — Jilani Khaldi <jilanik@...>

Hi All,

17 messages 2000/06/14

[#3415] Re: Waffling between Python and Ruby — Andrew Hunt <andy@...>

>Static typing..., hmm,...

11 messages 2000/06/14

[#3453] Re: Static Typing( Was: Waffling between Python and Ruby) — Andrew Hunt <andy@...>

32 messages 2000/06/16

[#3516] Deep copy? — Hugh Sasse Staff Elec Eng <hgs@...>

Given that I cannot overload =, how should I go about ensuring a deep

20 messages 2000/06/19

[#3694] Why it's quiet — hal9000@...

We are all busy learning the new language

26 messages 2000/06/29
[#3703] Re: Why it's quiet — "NAKAMURA, Hiroshi" <nahi@...> 2000/06/30

Hi,

[#3705] Re: Why it's quiet — matz@... (Yukihiro Matsumoto) 2000/06/30

Hi,

[ruby-talk:03287] Re: BUG or something?

From: Wayne Scott <wscott@...>
Date: 2000-06-12 13:07:49 UTC
List: ruby-talk #3287
From: Hugh Sasse Staff Elec Eng <hgs@dmu.ac.uk>
> Would it be possible to have a test for "when calling this code, it
> is possible to exit leaving a global variable changed"?.  There are
> only so many wasy to leave a method, module... without completely
> crashing.

As I mentioned.  In perl it is possible to use dynamic scoping to
limit the code that sees a change to one of these variables, but
introducing dynamic scoping to Ruby would be a Bad Idea(tm).  Also in
Ruby all the thing those vars change are all optional arguments to the
methods that use them and they just set the default.  This means the
vars and not really needed:

	paragraphs = File.open("paper").read.split(/\n\s*\n/)

That is not true for $=, but then I don't think I like $=...

Does this work?

     #!/usr/bin/ruby -w

     $/.freeze	  # prevent changing from defaults
		  # repeat for other vars...

     # my code here
     
-Wayne

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