From: "Peña, Botp" <botp@...>
Date: 2008-07-29T16:47:09+09:00
Subject: Re: and and or in case

From: Ben Brightwell [mailto:neogia4@gmail.com] 
# The way I see it (and also the way I practice it today) is to always 
# always always use "&&" or "||" over "and" or "or", respectively.
# The words "and" and "or" are lower in the order of operators than the 
# symbols "&&" and "||". This is intentional for beginner 
# programmers to be able to "read" the code rather than work out the
# logic of  the code. 

Ben thanks, but i'm not convinced. It still does not answer why it is not allowing in case-when clause yet allowing it in if-elsif, 

sample,

if 1==1 and 2==2
  p "ok"
end
"ok"
#=> nil

case
when 1==1 and 2==2
  p "ok"
end
SyntaxError: compile error
(irb):5: syntax error, unexpected kAND, expecting kTHEN or ':' or '\n' or ';'
when 1==1 and 2==2
             ^
(irb):7: syntax error, unexpected kEND, expecting $end
        from (irb):7
        from :0

arggh, i love using case-when and and/or and now both do not work together?? quite a surprise to me there.

kind regards -botp