Attribute |= expression

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To make is easier to write rules succinctly, you may use the assignment:

TheAttribute |= expression;

... which sets TheAttribute to true if it is already true, or if the expression is true.

For example:

Urgent |= ^any(child,Urgent)

A project is urgent if it's been declared to be urgent itself, or if any child is urgent

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[Last updated: 1 Dec 2008]

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