Boolean Functions

The Boolean menu contains the following functions:

• Logical And: Checks whether both arguments are true and returns Boolean true if they are both true. If either argument is false, the function returns false.

• Logical Or: Checks whether either argument is true and returns Boolean true if one argument is true. If both arguments are false, the function returns false.

• Logical Not: Checks whether the argument is false and returns Boolean true if the argument is false. If the argument is true, the function returns false.

• Language: Checks whether the language of the context node is the same as or is a sub-language of the language specified in the argument. The function returns Boolean true if the language is the same or a sublimating; otherwise it returns false.

• Logical False: Returns Boolean false.

• Logical True: Returns Boolean true.

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