From: Sergei Olonichev <olonichev@...>
Date: 2003-10-28T16:26:53+09:00
Subject: Re: problem with \s in unicoded regular expressions

Sergei Olonichev wrote:

> Hello,
>
> I have found a problem with character classes definition in unicoded 
> regular expressions. It seems \s isn't defined properly.
>
> See the following simple program which ought to change space symbols 
> into "line feed":
> cat test.utf8 | ruby-1.8.0 -Ku -ne '$_.gsub(/[\s]+/u,"\n"); puts $_;'

I have forgotten "!" after "gsub" here in this letter but not when I 
tested this problem, so "!" does not help.

>
> test.utf8 contains the following in hex:
> C2 A0 32 33 20 31 0A C2 A0 32 34 20 31 0A
>
> which is UTF8 code for:
> 00A0 NS no-break space
> 0032 2 digit two
> 0033 3 digit three
> 0020 SP space
> 0031 1 digit one
> 000A LF line feed (lf)
> 00A0 NS no-break space
> 0032 2 digit two
> 0034 4 digit four
> 0020 SP space
> 0031 1 digit one
> 000A LF line feed (lf)
>
> But Ruby does not make any changes (does not change "no-break space" 
> into "line feed")!
> Is that a bug?
>
>
> Best wishes,
> Sergei
>
>
>
>
>