D.1.51 Element parameter

D.1.51.1 Description

A single parameter for a function.

D.1.51.2 Parents

argumentlist, parameterlist

D.1.51.3 Content

(name , type , description)

parameter
 |_(name,
 |__type,
 |__description)

D.1.51.4 Attribute parameter/given

If the parameter is read by the function, this attribute should be present. If neither this, nor the `returned' attribute is present, the default is taken to be `given'.

• Default: #implied
• Allowed values: given

D.1.51.5 Attribute parameter/optional

This attribute is present if the parameter is optional. Optional means that the parameter will be defaulted if omitted, and keyword means that the parameter is specified with a keyword. Both mechanisms are used in both DSSSL and IDL (for example).

• Default: #implied
• Allowed values: optional keyword

D.1.51.6 Attribute parameter/default

The default value, if this parameter is optional and omitted.

• Default: #implied
• Type: cdata

D.1.51.7 Attribute parameter/returned

If the parameter is written by the function, this attribute should be present.

• Default: #implied
• Allowed values: returned