Xerox Paris, a document system Support & Software User Guide

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As tests apply to all input events, apart from runtime events, we shall begin by
describing the use of tests.

An event is a conditional process and one or two tests can be used to specify the
particular conditions to be tested for in the printstream data. If the test conditions are
met, events make the changes indicated. These test conditions are set in the
View/Change Test dialogue.

Particular care needs to be taken when setting tests, for example, with page/para
events, the test is applied to the whole printstream and causes the appropriate change
to be applied to ALL text blocks on the page.

Runtime events do not use tests but rely on a command sequence embedded in the
printstream data. Refer to the section Runtime Events on page 238.