From: Michael Brooks <michael.brooks@...>
Date: 2008-02-17T03:04:57+09:00
Subject: Use of ? in variable names

Hello everyone:

Why can't I name boolean variables with a "?" on the end?  The "?" can 
be used on the end of methods but not variable.  Here is an example:

# This naming convention works with "?"
def boolean_method?
   return true
end
puts boolean_method?

# This naming convention doesn't works with "?"
boolean_variable? = true
puts boolean_variable?

The question mark would make the intention of the variable obvious, just 
like it helps the method name.

So why isn't this allowed?  Did I miss something?

Thank You,

Michael