Boolean

The Boolean menu contains the following functions:

• True returns true.

• False returns false.

• AND uses the following logic: If both arguments are true, then the function returns true. If either argument is false, then the function returns false.

• OR uses the following logic: If either argument is true, then the function returns true. If both arguments are false, then the function returns false.

• Not uses the following logic: If the argument is false, then the function returns true. If the argument is true, then the function returns false.

• Lang returns true or false depending on whether the language of the context node is the same as or is a sublanguage of the language specified in the argument.

• Boolean converts the argument to a boolean. For detailed information about the logic, see the XPath 1.0 specification.