reindent, removing mix of tabs and spaces

git-svn-id: https://svn.muze.nl/svn/ariadne-php5/trunk@6590 7882d7ee-46e0-0310-a255-a28a61b628e4
rewrite NULL to null

git-svn-id: https://svn.muze.nl/svn/ariadne-php5/trunk@6591 7882d7ee-46e0-0310-a255-a28a61b628e4
rewrite sizeof to count

git-svn-id: https://svn.muze.nl/svn/ariadne-php5/trunk@6592 7882d7ee-46e0-0310-a255-a28a61b628e4
Code cleanup

git-svn-id: https://svn.muze.nl/svn/ariadne-php5/trunk@6593 7882d7ee-46e0-0310-a255-a28a61b628e4
add unittest for listexpression

git-svn-id: https://svn.muze.nl/svn/ariadne-php5/trunk@6594 7882d7ee-46e0-0310-a255-a28a61b628e4