From: Robert Klemme <shortcutter@...>
Date: 2013-05-07T19:58:24+09:00
Subject: Re: The question about 'Range' as Condition

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On Tue, May 7, 2013 at 12:07 PM, Haibin Shi <syunxi@gmail.com> wrote:

> Hi All,
>
> I don't know why these two codes of behavior will not be the same,
> in my opinion, they are the same logic.
>

No, it's not, because you change the number of range operators.  A range
operator in an if / unless situation has a built in FlipFlop which will
change the state whenever a change in matching occurs:
http://www.ruby-doc.org/docs/ProgrammingRuby/html/tut_expressions.html#UF

Cheers

robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

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<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><br><div class=3D"gmail=
_quote">On Tue, May 7, 2013 at 12:07 PM, Haibin Shi <span dir=3D"ltr">&lt;<=
a href=3D"mailto:syunxi@gmail.com" target=3D"_blank">syunxi@gmail.com</a>&g=
t;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;p=
adding-left:1ex">Hi All,<br>
<br>
I don&#39;t know why these two codes of behavior will not be the same,<br>
in my opinion, they are the same logic.<br></blockquote><div><br></div><div=
 style>No, it&#39;s not, because you change the number of range operators. =
=A0A range operator in an if / unless situation has a built in FlipFlop whi=
ch will change the state whenever a change in matching occurs:</div>
<div style><a href=3D"http://www.ruby-doc.org/docs/ProgrammingRuby/html/tut=
_expressions.html#UF">http://www.ruby-doc.org/docs/ProgrammingRuby/html/tut=
_expressions.html#UF</a><br></div><div style>=A0</div><div style>Cheers</di=
v>
<div style><br></div><div style>robert</div></div><div><br></div>-- <br>rem=
ember.guy do |as, often| as.you_can - without end<br><a href=3D"http://blog=
.rubybestpractices.com/">http://blog.rubybestpractices.com/</a>
</div></div>

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