SIS conditions may be combined using the following logical operators.

and

Description

Evaluates to true only if all nested conditions return true. The nested conditions are executed in their defined order. If an executed nested condition evaluates to false, further nested conditions are not evaluated.

Example

 
<and>
    <equal a="..." b="..."/>
    <equal a="..." b="..."/>
    <equal a="..." b="..."/>
</and>

or

Description

Evaluates to true if at least one nested condition returns true. The nested conditions are executed in their defined order until a condition evaluates to true.

Example

 
<or>
    <less-than a="..." b="..."/>
    <greater-than a="..." b="..."/>
</or>

not

Description

Negates the value returned by its nested condition.

Example

 
<not>
    <less-than a="..." b="..."/>
</not>
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