Rank: Newbie
Joined: 12/28/2016
Posts: 1
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I am trying to create a schema for a drawing.
The root element is "document".
It contains one tag named "layers".
"layers" contains several "layer".
"layer" contains several "symbol"
"symbol" contains "layers"
How can I make the "layers" element recursive?
Thanks
Vaclav
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Rank: Newbie
Joined: 10/28/2002
Posts: 1,283
Location: AT
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Declare "layers" as a global element in your schema (top level) and then reference it:
Code:
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
<xs:element name="document">
<xs:complexType>
<xs:sequence>
<xs:element ref="layers"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="layers">
<xs:complexType>
<xs:sequence>
<xs:element name="layer">
<xs:complexType>
<xs:sequence>
<xs:element name="symbol">
<xs:complexType>
<xs:sequence>
<xs:element ref="layers" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
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