isTrue Function

Used when referencing Boolean values that are represented with the strings true and false rather than the number 0 and 1. Takes one argument.

This function returns:

• 0– the argument is logically false. The following are considered true: the string true, a Boolean true, and a non-zero integer. (Anything else is considered false.)

• 1– the argument is logically true.

Example

The following expression returns 0.

<isTrue>
   <s>false</s>
</isTrue>