**''OR''**

''OR'' is next LISP macro, implemented as a special form in LabLISP. Accepts any number of arguments. The arguments are evaluated in sequence, until one of them returns something else than ''NIL''. Then the last result is returned from the form and the rest is ignored. Eventually, the result of the last form is returned.

<code lisp>
(or f1 f2 f3)            ; syntax of OR
</code>

See also ''IF'', ''PROGN'', ''WHEN'', ''UNLESS'', ''AND''