XML Schema

Name

xs:notation — Declaration of a notation.

Synopsis

<xs:notation
           id            = xs:ID
           name          = xs:NCName
           public        = xs:token
           system        = xs:anyURI
           {any attributes with non-schema namespace}
           >
           Content: (xs:annotation?)
</xs:notation>

May be included in: xs:schema

Description

xs:notation is used to declare a notation just like the NOTATION declarations in DTDs. The main difference is that W3C XML Schema notations are namespace-aware and can be imported between schemas. When these declarations are used, the notations are used in xs:enumeration facets to create simple types.

Restrictions

Notations are very seldom used in real world applications.

Example

<xs:notation name="jpeg" public="image/jpeg"
  system="file:///usr/bin/xv"/>  
 
<xs:notation name="gif" public="image/gif"
  system="file:///usr/bin/xv"/>  
 
<xs:notation name="png" public="image/png"
  system="file:///usr/bin/xv"/>  
 
<xs:notation name="svg" public="image/svg"
  system="file:///usr/bin/xsmiles"/>  
 
<xs:notation name="pdf" public="application/pdf"
  system="file:///usr/bin/acroread"/>

<xs:simpleType name="graphicalFormat">
  <xs:restriction base="xs:NOTATION">
    <xs:enumeration value="jpeg"/>
    <xs:enumeration value="gif"/>
    <xs:enumeration value="png"/>
    <xs:enumeration value="svg"/>
    <xs:enumeration value="pdf"/>
  </xs:restriction>
</xs:simpleType>

Attributes

id

W3C XML Schema’s element ID.

name

Name of the notation (unqualified).

public

Public identifier (usually its content type).

system

System identifier (typically the location of a resource that might be used ...