Xml-schema's DTD description

Xml

<! ENTITY% datatypes "(ENTITY | Entities | Enumeration | ID | IDREF | IDREFS | NmToken | Nmtokens | notation | string | bin.base64 | Bin.hex | Boolean | char | Date | DateTime | Datetime.tz | fixed.14.4 | float | int | number | Time | Time.tz | I1 | I2 | I4 | R4 | R8 | Ui1 | Ui2 | UI4 | URI | UUID) "
>

<!--* * * Data type * * *-->
<! ELEMENT datatype (description) *>
<! ATTLIST datatype
Dt:type%datatypes; #IMPLIED
Xmlns:dt CDATA #FIXED "Urn:schemas-microsoft-com:datatypes"
>
　
<!--* * *-->
<! ELEMENT description (#PCDATA) >
　
<!--* * * ELEMENTS Quote * * * *-->
<!--Additional restrictions: maxOccurs must be 1 or "*"-->
<! Element Element (description) * >
<! attlist element
Type IDREF #REQUIRED
minoccurs CDATA #IMPLIED
MaxOccurs CDATA #IMPLIED
>
　
<!--* * * Property Reference * * *-->
<! ELEMENT attribute (description) * >
<! attlist attribute
Type IDREF #REQUIRED
Default CDATA #IMPLIED
Required (yes | no) "NO"
>
　
<!--* * * Attribute definition * * *-->
<! ELEMENT AttributeType (DataType | description) * >
<! Attlist AttributeType
Name ID #REQUIRED
Default CDATA #IMPLIED
Dt:type%datatypes; #IMPLIED
Dt:values CDATA #IMPLIED
Required (yes | no) #IMPLIED
Xmlns:dt CDATA #FIXED "Urn:schemas-microsoft-com:datatypes"
>
　
<!--* * * ELEMENT Definition * * * *-->
<! ELEMENT ElementType (DataType | description | AttributeType | Attribute | Element | Group) * >
<! Attlist ElementType
Name ID #REQUIRED
Model (Open | closed) #IMPLIED
Content (Empty | textOnly | eltonly | mixed) #IMPLIED
Order (One | seq | many) #IMPLIED
Dt:type%datatypes; #IMPLIED
Dt:values CDATA #IMPLIED
Required (yes | no) #IMPLIED
Xmlns:dt CDATA #FIXED "Urn:schemas-microsoft-com:datatypes"
>
　
<!--* * * * *--> Group * * *
<! Element Group (Group | element | description) *>
<! Attlist Group
minoccurs CDATA #IMPLIED
MaxOccurs CDATA #IMPLIED
Order (One | seq | many) #IMPLIED
>
　
<!--* * * * * * *-->
<! ELEMENT Schema (AttributeType | ElementType | Description) * >
<! Attlist Schema
Name CDATA #IMPLIED
Xmlns:dt CDATA #FIXED "Urn:schemas-microsoft-com:datatypes"
>