From: Robert Klemme <shortcutter@...>
Date: 2008-09-08T01:45:00+09:00
Subject: Re: I have been looking at this little anomoly ?A => 65

2008/9/7 Victor H. Goff III <keeperotphones@gmail.com>:
> 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
>

Try hi.each {|l| p [l, l.class]} to see why it does not work.

Kind regards

robert


-- 
use.inject do |as, often| as.you_can - without end