How to access rule operators

The Studio tools for accessing operators provide icons with decorations, and tooltips.

Icons

Rule Operators are assigned icons which provide the user with information about their usage. The following table describes these icons:

Icon	Where Found	Purpose	Examples
	General, Literals category	indicates special values or constants	null, true, other
	General, Functions category	indicates system values that are automatically retrieved upon rule execution.	now, today
	Operators, Boolean category	this special "unary" operator icon is used only with not	not
	Operators, all categories	indicates the operator uses a period "." to attach to its operand. Most operators with this icon typically fell into the previous "function" category.	day, round, contains
	Operators, all categories	indicates the operator is used between two operands. Most operators with this icon typically fell into the previous "comparison" category.	equals, multiply
	Operators, Collection & Sequence categories	indicates the operator is used with collections or sequences. Also indicates an alias must be used to represent the collection operated on.	sum, size
	Extended Operators	indicates the operator has been added to the Vocabulary using the extension framework described in Corticon Extensions Guide.	-

Tool tips

In Corticon Studio, moving the mouse over a Vocabulary operator and pausing, or hovering for a moment, causes a dynamic tool tip text box to display. This tool tip contains information about operator syntax, return data type, and description, all of which are supplied in more detail in this set of topics. For questions not answered by the tool tip, refer to the detailed operator descriptions in this publication. The following figure shows a typical tool tip for the date operator .monthsBetween: