From: Greg Willits <lists@...>
Date: 2007-10-07T03:27:46+09:00
Subject: Ternary Usage

New to Ruby. Having trouble with ternary statements.

I am used to a language that allows these two forms:

   test ? trueStuff
   test ? trueStuff | falseStuff

While I have yet to find a reference that explicitly states this, it
would appear that ternary statement in Ruby is not allowed to exclude
the :, as without it I get an "unexpected '\n'" error statement.

Ok, fine, so I can write something like this:

   $debug ? $devLog.info("bla bla bla") :

That's working for most cases, however, whenever such a line appears in
IF statements, it generates another set of errors.

if (...whatever...)
  ...do some stuff...
  $debug ? $devLog.info("bla bla bla") :
else
  ...do other stuff...
  $debug ? $devLog.info("yadda yadda") :
end

I get "unexpected kELSE" and "unexpected kEND" syntax errors.

Hard to comprehend what can be so tricky about a simple ternary
statement. Indeed it is assumed to be so simple that the Programming
Ruby book offers no details for its use, yet clearly there are some
rules that need to be followed.

Any enlightment is appreciated. TIA.

-- greg willits
-- 
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