Hi team,
In the XML Schema 1.1 spec, at http://www.w3.org/TR/xmlschema11-1/
(W3C Working Draft 20 June 2008),
it's mentioned
2.2.4.3 Assertion
Assertions are currently only allowed to be specified in complex
types. It may be deemed useful also to include assertions in named
model group definitions and/or attribute groups, or even simple types.
The XML Schema Working Group solicits input from implementors and
users of this specification on this question.
The above paragraph conveys that, assertions on simple types is still
not approved by the XML Schema WG, and discussions are still underway.
But the definition of simple types in the same spec says,
3.16.2 XML Representation of Simple Type Definition Schema Components
<simpleType
final = (#all | List of (list | union | restriction | extension))
id = ID
name = NCName
{any attributes with non-schema namespace . . .}>
Content: (annotation?, (restriction | list | union))
</simpleType>
<restriction
base = QName
id = ID
{any attributes with non-schema namespace . . .}>
Content: (annotation?, (simpleType?, (minExclusive | minInclusive |
maxExclusive | maxInclusive | totalDigits | fractionDigits | maxScale
| minScale | length | minLength | maxLength | enumeration | whiteSpace
| pattern | assert | {any with namespace: ##other})*))
</restriction>
The definition of <restriction above specifies, that assertions on
simple type is available in the spec.
Could you please clarify this, and should I go ahead and implement
assertions on simple types?
--
Regards,
Mukul Gandhi
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