From: murphy <murphy@...>
Date: 2007-12-12T09:23:49+09:00
Subject: Re: redefineable not operator

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Yukihiro Matsumoto wrote:
> Why don't you speak Japanese? ;-)
I want to, but unformtunately, it's harder to learn than Ruby :)

>   User.select {|m| m.name != 'macgyver'}
or !(m.name == 'macgyver') or m.address !~ 'Osaka'. I see, thank you!

while testing, I also realized that you can redefine unary ! and ~
methods without @ now:

  class Feeling

    def ~
      :drunk
    end

    def !
      :alert
    end

    def -@  # still needed
      :bad
    end

    def +@  # here too
      :good
    end

  end

I wonder if all those little changes are documented somewhere...
Pickaxe 3, anyone?

oh, and here's a little doc correction/clarification for !~ (attached).

[murphy]

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Index: object.c
===================================================================
--- object.c	(revision 14196)
+++ object.c	(working copy)
@@ -1025,9 +1025,10 @@
 
 /*
  *  call-seq:
- *     obj !~ other  => nil
+ *     obj !~ other  => true or false
  *  
- *  Returns true if two objects does not match, using <i>=~</i> method.
+ *  Returns true if two objects do not match (using the <i>=~</i>
+ *  method), otherwise false.
  */
 
 static VALUE

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