Cart
[Home] [By Thread] [By Date] [Recent Entries]
Title: Enumerations Hi
John,
According to XML 1.0, it looks like this DTD would be illegal.
For
XML Schema, enumeration values must be valid for the base type. So, it is
possible to list the empty string as a value, but only if the base type
allows the empty string (Off the top of my head, I think this includes
string, normalizedString, token, hexBinary,
base64Binary).
For
example,
<xsd:simpleType name="colorType">
<xsd:restriction base="xsd:string">
<xsd:enumeration value=""/>
<xsd:enumeration
value="green"/>
...
</xsd:restriction>
</xsd:simpleType>
is OK
because "" is a valid value for string. However,
<xsd:simpleType name="colorType">
<xsd:restriction base="xsd:integer">
<xsd:enumeration value=""/>
<xsd:enumeration
value="333333"/>
...
</xsd:restriction>
</xsd:simpleType>
is
not OK because "" is not a valid
integer.
--Priscilla
|
