From: "Peña, Botp" <botp@...>
Date: 2008-07-29T13:37:20+09:00
Subject: and and or in case

Hi All, apologies in advanced if this has been discussed already

why does ruby not compile the following case-when clause if using "and" or "or" ? It works if i replace it with "&&" or "||", but i'm not asking nor using that, "and/or" are much friendlier.

samples,

irb(main):038:0> case
irb(main):039:1* when 1==1 or 2==2
irb(main):040:1>    puts "ok"
irb(main):041:1> end
SyntaxError: compile error
(irb):39: syntax error, unexpected kOR, expecting kTHEN or ':' or '\n' or ';'
when 1==1 or 2==2
            ^
(irb):41: syntax error, unexpected kEND, expecting $end
        from (irb):41
        from ?:0

irb(main):050:0> case
irb(main):051:1* when 1==1 and 2==2
irb(main):052:1>    puts "ok"
irb(main):053:1> end
SyntaxError: compile error
(irb):51: syntax error, unexpected kAND, expecting kTHEN or ':' or '\n' or ';'
when 1==1 and 2==2
             ^
(irb):53: syntax error, unexpected kEND, expecting $end
        from (irb):53
        from :0

thank you and kind regards -botp