From: Nikolai Weibull <lone-star@...>
Date: 2003-08-13T23:24:09+09:00
Subject: Re: UTF-8 question

* Mark J. Reed <markjreed@mail.com> [Aug, 13 2003 15:50]:
>
> The problem is that Ruby Strings are still logically treated as
> collections of bytes rather than collections of characters.  So
> String#tr only works for characters whose representation takes up a
> single byte - which, in the case of UTF-8, means only the 7-bit
> ASCII characters.
>
Yeah, that's what I guessed.
>
> To avoid the unightly gsub chaining, you can write your own tr-like
> method that takes an array of regexes and a corresponding array
> of substitutions:
>
It should probably be:
> 	class String
> 	    def trsub!(res, subs)
		last = subs[-1] || ''
> 		res.each_with_index do
> 		    |re, i|
> 		     self.gsub!(re, subs[i] || '')
 		     self.gsub!(re, subs[i] || last)
> 		end
> 	    end
> 	end
>
> 	s.trsub!(%w<� � � � � � � � �>,  %w<n a e i o u u>)
>
Yeah, i've thought of this as well.  However, it feels like it will be
rather slow.  OK, given the input strings are rather short ;-), so I
guess it will do.  Thanks,
	nikolai

--
::: name: Nikolai Weibull    :: aliases: pcp / lone-star       :::
::: born: Chicago, IL USA    :: loc atm: Gothenburg, Sweden    :::
::: page: www.pcppopper.org  :: fun atm: gf,lps,ruby,php,war3  :::
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