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Tip of the Day
Language: XML
Expertise: Advanced
Aug 25, 2004

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Full Text Search: The Key to Better Natural Language Queries for NoSQL in Node.js


Regular Expression Validation in XSD

The following code performs powerful Date type validation in XSD. It validates date fields with timestamp (optional) in yyyyMMdd hh:MM:ss.ffffff format.

If your XML file contains the element ValueDate, the corresponding XSD will be this:


<xs:element name="ValueDate" type="dateType"/>

<xs:simpleType name= "timestampType">
  <xs:restriction base = "xs:string">
   <xs:pattern value='[1-9][0-9][0-9][0-9](([0][1|3|5|7|8])([0][1-9]|[1-2][0-9]|[3][0-1])|([0][4|6|9])
([0][1-9]|[1-2][0-9]|[3][0])|([0][2])([0][1-9]|[1-2][0-9])|([1][0|2])([0][1-9]|[1-2][0-9]|[3][0-1])|([1]
[1])([0][1-9]|[1-2][0-9]|[3][0]))([ ]([2][1-4]|[0][0-9]|[1][0-9])[:]([0-5][0-9]|[6][0])[:]([0-5][0-9]|[6]
[0])[.][0-9]{6})*'/>
  </xs:restriction>
</xs:simpleType>
</code></pre>
Supal Chowdhury
 
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