From: 7stud -- <lists@...>
Date: 2012-12-25T17:15:46+09:00
Subject: Re: Character encoding in 1.9

line = "hello\377\373\001 \377\374\001 \377\375\001world"

(3..7).each do |n|
  pattern = "\377" << (0370 + n).chr << "\001"
  line.gsub! pattern, " "
  puts line
end

--output:--
hello  ?? ??world
hello    ??world
hello     world
hello     world
hello     world

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