boolexpr – A boolean expression evaluator and a switch command

The \bool­expr macro eval­u­ates boolean ex­pres­sions in a purely ex­pand­able way. \bool­expr{ A \OR B \AND C } ex­pands to 0 if the log­i­cal ex­pres­sion is TRUE. A, B, C may be: – nu­meric ex­pres­sions such as: x=y, x<>y, x>y or x} ... \case{} ... ... \oth­er­wise ... \endswitch