Issues writing XSD file

2,057

Expert 2GB

Your formation of schema doesn't fit standards. See this example for where to place your elements and attributes within a complexType:

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

    <xs:element name="beer">

        <xs:complexType>

            <xs:sequence>

                <xs:element name="a"/>

                <xs:element name="b"/>

            </xs:sequence>

            <xs:attribute name="attb"/>

            <xs:attribute name="atta"/>

        </xs:complexType>

    </xs:element>

</xs:schema>

Sep 17 '10 #2

Thanks for your reply.
Here is what I have now.
My XSD file:

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<?xml version="1.0"?>

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">

<xs:element name="letter">

    <xs:complexType>

    <xs:sequence>

    <xs:element name="to" type="xs:normalizednormalizedString"/>

      <xs:element name="from" type="xs:normalizedString"/>

    <xs:element name="title" type="xs:normalizedString"/>

    <xs:element name="msg" type="xs:normalizedString"/>

    </xs:sequence>

    <xs:attribute name="date" type="xs:normalizedString"/>

      <xs:attribute name="last" type="xs:normalizedString"/>

    <xs:attribute name="first" type="xs:normalizedString"/>

    <xs:attribute name="middle" type="xs:normalizedString"/>

    <xs:attribute name="paragraph" type="xs:normalizedString"/>

    </xs:complexType>        

</xs:element>

</xs:schema>

My errors:
Ln 6 Col 62 - src-resolve.4.2: Error resolving component 'xs:normalizednormalizedString'. It was detected that 'xs:normalizednormalizedString' is in namespace 'http://www.w3.org/2001/XMLSchema', but components from this namespace are not referenceable from schema document 'file:///C:/XML/lettersl.xsd'. If this is the incorrect namespace, perhaps the prefix of 'xs:normalizednormalizedString' needs to be changed. If this is the correct namespace, then an appropriate 'import' tag should be added to 'file:///C:/XML/lettersl.xsd'.
Ln 13 Col 10 - cvc-type.3.1.2: Element 'from' is a simple type, so it must have no element information item [children].
Ln 22 Col 9 - cvc-type.3.1.2: Element 'msg' is a simple type, so it must have no element information item [children].

Sep 17 '10 #3

2,057

Expert 2GB

You probably mean 'xs:normalizedString' (one normalized)

Your from and msg nodes are actually a complex element containing other elements. eg 'from' from your code:

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<from> 

  <first>Sylvie</first> 

  <middle>S.</middle> 

</from>

Put in another element definition inside much like your first one.
Example of nesting element:

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

    <xs:element name="beer"> 

        <xs:complexType> 

            <xs:sequence> 

                <xs:element name="a">

                <xs:complexType>

                  <xs:sequence>

                    <xs:element name="a_child1"/>                      

                                  <xs:element name="a_child2"/>                      

                  </xs:sequence>

                </xs:complexType>

                </xs:element> 

                <xs:element name="b"/> 

            </xs:sequence> 

            <xs:attribute name="attb"/> 

            <xs:attribute name="atta"/> 

        </xs:complexType> 

    </xs:element> 

</xs:schema>

Example of using reference instead:

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

    <xs:element name="beer">

        <xs:complexType>

            <xs:sequence>

                <xs:element ref="a"/>

                <xs:element name="b"/>

            </xs:sequence>

            <xs:attribute name="attb"/>

            <xs:attribute name="atta"/>

        </xs:complexType>

    </xs:element>

    <xs:element name="a">

        <xs:complexType>

            <xs:sequence>

                <xs:element name="a_child1"/>

                <xs:element name="a_child2"/>

            </xs:sequence>

        </xs:complexType>

    </xs:element>

</xs:schema>

Other option, change your source xml to attributes:
First and middle are elements not attributes. An equivalent with attributes might be:
<from first="Sylivie" middle="S."/>

Sep 17 '10 #4

Ok, here is my code now:

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<?xml version="1.0"?>

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">

<xs:element name="letter">

<xs:complexType>

    <xs:sequence>

        <xs:element name="to" type="xs:normalizednormalizedString"/>

                <xs:element name="first" type="xs:normalizedString"/>

                <xs:element name="last" type="xs:normalizedString"/>

                </xs:sequence>

                </xs:complexType>

    <xs:complexType>

    <xs:sequence>

        <xs:element name="from" type="xs:normalizedString"/>

                <xs:element name="first" type="xs:normalizedString"/>

                  <xs:element name="middle" type="xs:normalizedString"/>

                  </xs:sequence>

                  </xs:complexType>

      <xs:complexType>

      <xs:sequence>

          <xs:element name="title" type="xs:normalizedString"/>

        <xs:element name="msg" type="xs:normalizedString"/>

        <xs:element name="paragraph" type="xs:normalizedString"/>

                </xs:sequence>

                  </xs:complexType>        

</xs:element>

</xs:schema>

Here are my errors now:
Ln 11 Col 18 - s4s-elt-must-match.1: The content of 'letter' must match (annotation?, (simpleType | complexType)?, (unique | key | keyref)*)). A problem was found starting at: complexType.
Ln 6 Col 63 - src-resolve.4.2: Error resolving component 'xs:normalizednormalizedString'. It was detected that 'xs:normalizednormalizedString' is in namespace 'http://www.w3.org/2001/XMLSchema', but components from this namespace are not referenceable from schema document 'file:///C:/XML/lettersl.xsd'. If this is the incorrect namespace, perhaps the prefix of 'xs:normalizednormalizedString' needs to be changed. If this is the correct namespace, then an appropriate 'import' tag should be added to 'file:///C:/XML/lettersl.xsd'.
Ln 4 Col 61 - cvc-complex-type.3.2.2: Attribute 'date' is not allowed to appear in element 'letter'.
Ln 10 Col 9 - cvc-complex-type.2.4.a: Invalid content was found starting with element 'from'. One of '{first}' is expected.

Sep 17 '10 #5

Here is an update for those of you helping me out:
I have updated my code to the following:

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 <?xml version="1.0"?>

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
 
<xs:element name="letter">

<xs:attribute name="date" type="xs:normalizedString"/>

<xs:complexType>

<xs:sequence>

<xs:element name="to" type="xs:normalizednormalizedString"/>

<xs:element name="first" type="xs:normalizedString"/>

<xs:element name="last" type="xs:normalizedString"/>

</xs:sequence>

</xs:complexType>

<xs:complexType>

<xs:sequence>

<xs:element name="from" type="xs:normalizedString"/>

<xs:element name="first" type="xs:normalizedString"/>

<xs:element name="middle" type="xs:normalizedString"/>

</xs:sequence>

</xs:complexType>

<xs:complexType>

<xs:sequence>

<xs:element name="title" type="xs:normalizedString"/>

<xs:element name="msg" type="xs:normalizedString"/>

<xs:element name="paragraph" type="xs:normalizedString"/>

</xs:sequence>

</xs:complexType>
 
</xs:element>

</xs:schema>

Now I am down to only 1 error on validation of my XML file:
Ln 6 Col 56 - s4s-elt-must-match.1: The content of 'letter' must match (annotation?, (simpleType | complexType)?, (unique | key | keyref)*)). A problem was found starting at: attribute.

Sep 17 '10 #6

2,057

Expert 2GB

Less errors is not always better...

<xs:attribute name="date" type="xs:normalizedString"/>
Should be inside the complexType.

Have you changed your source file at all? Your 'from' element is currently set to a simple element as opposed to a complex one.

Sep 17 '10 #7

Editing the XML file is not an option. I have to make my XSD file conform to the XML.
I did move the date attribute as you instructed.
I am still getting this error:
Ln 6 Col 56 - s4s-elt-must-match.1: The content of 'letter' must match (annotation?, (simpleType | complexType)?, (unique | key | keyref)*)). A problem was found starting at: attribute.

Would I be better off using ANY rather than complexType?

Sep 17 '10 #8

2,057

Expert 2GB

The attribute still has to be moved inside the complexType.
Pseudo (sorry, in a bit of a rush)

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 <element>

  <complexType>

    other elements

    <attribute/> put this here. 

  </complexType>

</element>

No, if you used any, there's no real point in having a schema. Almost anything would validate.

Sep 17 '10 #9

Thanks for your help.
I think I am close to having this done.
Here is my code now:

Expand|Select|Wrap|Line Numbers

 
<?xml version="1.0"?>

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">

<xs:element name="letter">

    <xs:complexType>

        <xs:attribute name="date" type="xs:string"/>

        <xs:element name="to" type="xs:normalizednormalizedString"/>

                <xs:complexType>

                    <xs:attribute name="first" type="xs:normalizedString"/>

                    <xs:attribute name="last" type="xs:normalizedString"/>

                    </xs:complexType>

    <xs:complexType>

        <xs:element name="from" type="xs:normalizedString"/>

                    <xs:attribute name="first" type="xs:normalizedString"/>

                      <xs:attribute name="middle" type="xs:normalizedString"/>

                      </xs:complexType>

      <xs:complexType>

          <xs:element name="title" type="xs:string"/>

        <xs:element name="msg" type="xs:string"/>

            <xs:attribute name="paragraph" type="xs:string"/>

                     </xs:complexType>        

</xs:complexType>

</xs:element>

</xs:schema>

Here is my error now:
Ln 6 Col 63 - s4s-elt-invalid-content.1: The content of '#AnonType_letter' is invalid. Element 'element' is invalid, misplaced, or occurs too often.

If you can help, I would really appreciate it. I have to get this done so I can move on to other content.

Sep 18 '10 #10

ERROR 3: Error writing file '/tmp/STcgTgD3' (Errcode: 28)

2,057

Expert 2GB

2 Things

1. If you're going to put elements inside a complex type, you need a sequence, choice, or all node.

2. attributes have to come after the sequence of elements in the complexType.

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