How to validate an email id in xml schema

email, schema, validation, xml

Solution

You will need to define a pattern to match against valid e-mails. Patterns are defined using regular expression syntax. Once you have defined a simple type (based on `xs:string`) with the appropriate pattern, you can use that for your e-mail type.

There are several places on the Internet that provide some examples of such types and patterns. An example of an e-mail type is provided here.

The example given there is as follows (I've edited it slightly to make things a little clearer):

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" > 

  <xsd:element name="A" type="emailAddress"/> 

  <xsd:simpleType name="emailAddress"> 
    <xsd:restriction base="xsd:string"> 
      <xsd:pattern value="[^@]+@[^\.]+\..+"/> 
    </xsd:restriction> 
  </xsd:simpleType> 
</xsd:schema>

Problem

Hi I have created a schema to check for email id. which can validate if the email id is abc@def.com and adbc@def.co.in and abc@def.co.in.pune But i want to validate only abc@def.com and adbc@def.co.in because i think email can have maximum 2 dots after @ symbol so the third one will be invalid email id So how to validate an email id using schema Below is the schema ``` <xsd:element name="SSEM" minOccurs="0"> <xsd:complexType> <xsd:sequence> <xsd:element name="CNT" minOccurs="0" maxOccurs="unbounded"> <xsd:complexType> <xsd:sequence> <xsd:element name="EM" minOccurs="1" nillable="true" type ="singleEmailID"/> </xsd:sequence> </xsd:complexType> </xsd:element> </xsd:sequence> </xsd:complexType> </xsd:element> ``` Thanks Sunil Kumar Sahoo

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