小松です。

2000-05-12のcommitでirbが動かなくなりました。1.5.4でも同様。

% ruby -v
ruby 1.4.4 (2000-05-12) [sparc-solaris2.5.1]
% irb
/usr/local/lib/ruby/1.4/irb/main.rb:14:in `require': /usr/local/lib/ruby/1.4/irb/ruby-lex.rb:663: premature end of regular expression: /[~_*$?!@/ (SyntaxError)
/usr/local/lib/ruby/1.4/irb/ruby-lex.rb:663: parse error
    when /[~_*$?!@/\\;,=:<>".]/   #"
                    ^
	from /usr/local/lib/ruby/1.4/irb/main.rb:14
	from /usr/local/bin/irb:18:in `require'
	from /usr/local/bin/irb:18
% 

--
小松克行 / Katsuyuki Komatsu <komatsu / sarion.co.jp>