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<?xml version="1.0" encoding="UTF-8"?>
<grammar xmlns="http://relaxng.org/ns/structure/1.0"
datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
<!--
CIB XML patchset
Note: This schema supports only v2-format patchsets. It does not and will
not support the v1 format. If a newer XML patchset format is created in the
future, then this schema should be updated accoridngly, or a new schema
should be created.
-->
<start>
<ref name="element-diff" />
</start>
<define name="element-diff">
<element name="diff">
<attribute name="format"> <data type="integer" /> </attribute>
<element name="version">
<element name="source">
<ref name="attributes-patchset-version" />
</element>
<element name="target">
<ref name="attributes-patchset-version" />
</element>
</element>
<oneOrMore>
<ref name="element-change" />
</oneOrMore>
</element>
</define>
<define name="attributes-patchset-version">
<attribute name="admin_epoch"> <data type="integer" /> </attribute>
<attribute name="epoch"> <data type="integer" /> </attribute>
<attribute name="num_updates"> <data type="integer" /> </attribute>
</define>
<define name="element-change">
<choice>
<ref name="element-change-create" />
<ref name="element-change-delete" />
<ref name="element-change-modify" />
<ref name="element-change-move" />
</choice>
</define>
<define name="element-change-create">
<element name="change">
<attribute name="operation"> <value>create</value> </attribute>
<attribute name="path"> <text/> </attribute>
<attribute name="position"> <data type="integer" /> </attribute>
<!--
Copy of the newly created node. To avoid maintenance headaches
like forgetting to update this schema when new CIB element types
are added, we'll simply allow any element here.
-->
<choice>
<externalRef href="any-element-2.30.rng" />
<text/>
</choice>
</element>
</define>
<define name="element-change-delete">
<element name="change">
<attribute name="operation"> <value>delete</value> </attribute>
<attribute name="path"> <text/> </attribute>
<optional>
<attribute name="position"> <data type="integer" /> </attribute>
</optional>
</element>
</define>
<define name="element-change-modify">
<element name="change">
<attribute name="operation"> <value>modify</value> </attribute>
<attribute name="path"> <text/> </attribute>
<ref name="element-change-list" />
<ref name="element-change-result" />
</element>
</define>
<define name="element-change-move">
<element name="change">
<attribute name="operation"> <value>move</value> </attribute>
<attribute name="path"> <text/> </attribute>
<attribute name="position"> <data type="integer" /> </attribute>
</element>
</define>
<!-- List of modified attributes -->
<define name="element-change-list">
<element name="change-list">
<oneOrMore>
<ref name="element-change-attr" />
</oneOrMore>
</element>
</define>
<!-- Attribute that has been modified ((re-)set or unset) -->
<define name="element-change-attr">
<element name="change-attr">
<attribute name="name"> <text/> </attribute>
<choice>
<group>
<attribute name="operation"> <value>set</value> </attribute>
<attribute name="value"> <text/> </attribute>
</group>
<attribute name="operation"> <value>unset</value> </attribute>
</choice>
</element>
</define>
<!-- Result of a modification -->
<define name="element-change-result">
<element name="change-result">
<!-- The modified element, without children -->
<element>
<anyName />
<zeroOrMore>
<attribute> <anyName /> <text/> </attribute>
</zeroOrMore>
</element>
</element>
</define>
</grammar>
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