From: Horacio Sanson <hsanson@...>
Date: 2005-12-26T10:29:09+09:00
Subject: Re: Multibyte regexps...

Thanks a lot...  this seems to work ok.

Where can I find documentation about this $KCODE global var and the "s" thing 
after each regexp? What does the s exactly mean?

Do I have to put it only in regexps with japanese characters or any regexp? I 
tried both and saw no difference.

When using Regexp.new to construct the regular expression how can I set the s 
to the end of it??

sorry for so many questions but I don't seem to find any docs about these 
options.


Horacio

Wednesday 21 December 2005 21:48、Yukihiro Matsumoto さんは書きました:
> Hi,
>
> In message "Re: Multibyte regexps..."
>
>     on Wed, 21 Dec 2005 18:59:59 +0900, Horacio Sanson 
<hsanson@moegi.waseda.jp> writes:
> |I am having some issues with regular expressions when working with
> | japanese strings.
> |
> |Using ruby-1.8.3 on Windows XP home (Japanese version) I have this test:
> |
> |irb(main):271:0> s = "鞄"
> |=> "\212\223"
> |irb(main):272:0> l = "行"
> |=> "\215s"
> |irb(main):273:0> l =~ /s/
> |=> 1
> |irb(main):274:0> puts "#{$`}<<#{$&}>>#{$'}"
> |E<s>>
> |=> nil
> |irb(main):275:0> "#{$`}<<#{$&}>>#{$'}"
> |=> "\215<<s>>"
> |irb(main):276:0> s =~ /l/
> |=> nil
>
> The encoding seems to be Shift_JIS. You have to specify encoding
> before you make regular expression matching.  Put s after every
> regular expression.
>
> $KCODE="sjis"  # to make p work right
> p s = "鞄"
> p l = "行"
> p l =~ /s/s
> puts "#{$`}<<#{$&}>>#{$'}"
> p "#{$`}<<#{$&}>>#{$'}"
> p s =~ /l/s
>
> 							matz.