The <ruleBase> Element

Definition and Usage

The <ruleBase> element groups a set of rules specified in <rule> and <compositeRule> elements. The specification of rules in NCL 3.0 was done in a separate module, because they are useful for defining either alternative components or alternative descriptors.


Element Attributes Content Parent
<ruleBase> id (<importBase> | <compositeRule> | <rule>)+ <head>


Name Value Description
id It may receive any string value that begins with a letter or an underscore and that only contains letters, digits, “.”, and “_”. The id attribute uniquely identifies the element within a document.
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