and

and

Syntax

%and('exp1[,'exp2[,...]])

Description

Expands to %null% if any of the given expressions expand to %null%.
Otherwise, T is returned.

Typically, the exp (expression) parameters should be quoted. This allows %and()
to use short-circuit semantics; that is, evaluation will stop after the first
null exp is encountered, since it takes only one null exp to return %null%.