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Date: Thu, 7 May 2015 08:53:20 -0700 (PDT)
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Subject: Validating XML using Ada schema module
From: Sonia Dalal <sonia12106@iiitd.ac.in>
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Xref: number.nntp.giganews.com comp.lang.ada:193062
Date: 2015-05-07T08:53:20-07:00
List-Id: <comp.lang.ada>

Hi all

I am new to ada. I am working on a project where I am parsing XML for data.=
 I am trying to validate the XML received (I am receiving XML from third pa=
rty) using the schema module. Following is the sample schema which I took f=
rom w3c site after I was getting raised CONSTRAINT_ERROR : schema-validator=
s.adb:2166 invalid data for my own schema but I am getting same error for t=
his schema.

<?xml version=3D"1.0"?>

<xs:schema xmlns:xs=3D"http://www.w3.org/2001/XMLSchema">

<xs:element name=3D"note">
  <xs:complexType>
    <xs:sequence>
      <xs:element name=3D"to" type=3D"xs:string"/>
      <xs:element name=3D"from" type=3D"xs:string"/>
      <xs:element name=3D"heading" type=3D"xs:string"/>
      <xs:element name=3D"body" type=3D"xs:string"/>
    </xs:sequence>
  </xs:complexType>
</xs:element>

</xs:schema>

Changing the version and scheam tag to=20
<?xml version=3D"1.0" encoding=3D"UTF-8"?>

<xs:schema xmlns:xs=3D"http://www.w3.org/2001/XMLSchema"
elementFormDefault=3D"qualified"
targetNamespace=3D"http://example.com/schemas/agent"
xmlns:agent=3D"http://example.com/schemas/agent">=20

does not make any difference. I tried looking into schema-validators.adb bu=
t that was of no use. Please help.