From: "Victor H. Goff III" <keeperotphones@...>
Date: 2008-09-08T01:20:26+09:00
Subject: I have been looking at this little anomoly ?A => 65

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I know that the reverse is 65.chr
but I can find no documentation for this (aside from the above line)

And I wanted to find out more about it, so am trying things like:>> ?A
=> 65
>> hi = "Hello World"
=> "Hello World"
>> hi.each {|letter| puts ?letter }
SyntaxError: compile error
(irb):2: syntax error, unexpected '}'
        from (irb):2
>> hi.each {|letter| puts ?"#{letter}" }
>>
^C
>> hi
=> "Hello World"
>> hi.each {|letter| puts letter.? }
(irb):5: warning: invalid character syntax; use ?\s
SyntaxError: compile error
(irb):5: syntax error, unexpected '?'
hi.each {|letter| puts letter.? }
                               ^
        from (irb):5
>> hi.each {|letter| puts letter.?\s }
SyntaxError: compile error
(irb):6: syntax error, unexpected tINTEGER
hi.each {|letter| puts letter.?\s }
                                 ^
        from (irb):6
>> hi.each {|letter| puts letter.?\s65 }
SyntaxError: compile error
(irb):7: syntax error, unexpected tINTEGER
hi.each {|letter| puts letter.?\s65 }
                                 ^
        from (irb):7

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