From: Alexander Bubnov <alexander.bubnov@...>
Date: 2010-03-01T21:31:03+09:00
Subject: What is '?' in Ruby?

Hello!
To clarify the question I need to say some more.
I know
Ruby 1.8 '?a' => 97
Ruby 1.9 '?a' => "a"
Really I would like to where I can get specification of operator,
keyword, function or something else I do know what is name of '?'...
I have surfed ruby-lang.org and ruby-doc.org but can't find information
about it. Is it an unofficial something?
Just a bit here http://www.ruby-doc.org/docs/ProgrammingRuby/, "Standard
Types" chapter:
?a                        # character code

But it is related to 1.8 version, not for 1.9.
Please just point to chapter of ruby specification where I can find
anything about '?' if it is. And are there methods which helps to know
what is '?'?

Thank you in advance.
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