From: 7stud -- <bbxx789_05ss@...>
Date: 2011-03-03T12:52:37+09:00
Subject: Re: How can i get the first letter of this string

You can use the /u flag for a regex to signal utf-8 matching...but you 
didn't mention what encoding your strings are in.  The regex would look 
like this:

"some string" =~ /^(.)/u
puts $1

You also didn't mention what version of ruby you are using...ruby 1.8 or 
1.9.

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