Member Template Directive
The *Member directive is also a construct. The value of this construct is a template name. This template name must appear in the *Members list of the host template (that is, the template that the production resides within) or in the *Members list that the host template inherits from (directly or indirectly). The *Member construct can contain an optional child attribute called *Occurs.
*Occurs specifies the number of instances that are bound to the template that the *Members production specifies, which might appear within an instance of the host template. Instances that bind-to templates derive from the template that is named by the *Members production will count as an occurrence of an instance of that template. If the number of such occurrences falls within the range that the *Occurs directive defines, the *Member directive will evaluate to TRUE; otherwise, the directive will evaluate as FALSE. Attribute or construct templates (*Type: CONSTRUCT or *Type: ATTRIBUTE) can be referenced in a *Member construct. The *Member construct that appears within a *Production directive is not the same as the *Members directive that appears as a child of a *Template directive. *Member is a construct and is singular, and *Members is an attribute and is plural (ends with the letter "s").
*Occurs specifies the number of instances that are bound to the template that the *Members production specifies. A specific value can be specified or a range of values can be specified by using a pair of numbers that are separated with a hyphen (-). If a range is specified, the first number must be smaller than the second. Negative numbers are not allowed. The allowed range includes the specified endpoints. The value 0 is allowed. The GPD wildcard (*) is allowed and matches any value that ranges from 0 to infinity. If the wildcard (*) appears as the upper endpoint of a range, there is no upper limit. If the wildcard appears as the lower limit of a range, the upper limit is ignored. The number or pair of numbers can be enclosed within square brackets ([]) for visual emphasis.
If the *Occurs attribute is omitted from the *Member construct, a range from 0 through infinity (that is, [0-*]) is assumed and the *Member production will always evaluate to TRUE.
When a *Member production names a construct template, the *Occurs count does not distinguish between the different instances of the construct. So three different instances of a construct that are bound to the same template will have the same occurrence count as three identical instances of the same construct.
For example, if both PaperSize and InputSlot are bound to the same template and if *Feature: PaperSize is defined twice, the occurrence count will be two. If *Feature: PaperSize is defined once and *Feature: InputSlot is defined twice, the occurrence count will be three.
No other attributes or constructs are allowed within the *Member directive.
When the *Members directive is in conjunction with the template binding process, the *Members directive attempts to associate a template with each child element that appears within a construct. But it does not specify how many times a child element can appear or specify any dependencies among or between child elements. The *Production directive is responsible for specifying these requirements. Note that the *Members directive is still required even when you use the *Production directive.