for loop with variable

[Ray Andrews <rayandrews@xxxxxxxxxxx>]

    % var=" a b c "
      
      % for aa in $=var; do echo $aa; done
      a
      b
      c
      
      % for aa in [a-c]; do echo $aa; done 
      c
      
      ... In the last 'for' it wants to find files whereas in the
      previous it knows it's looking at text.  Could the previous be
      done on one line?  That is, the range '[a-c]' would be understood
      to be just text, not a file glob?