From ca84a80f5fcbc479c980dbcc0393e7812071abd2 Mon Sep 17 00:00:00 2001
From: astro <astro@31f61c52-7bfb-0310-b897-fc00f8a278f0>
Date: Fri, 28 Jul 2006 02:47:16 +0000
Subject: [PATCH] Das atom031.xsd war steinalt, jetzt RNC aus dem ATOM-RFC mit
 trang zu RNG konvertiert

git-svn-id: svn://svn.c3d2.de/c3d2-web/trunk@490 31f61c52-7bfb-0310-b897-fc00f8a278f0
---
 Makefile        |   2 +-
 xsd/atom.rng    | 599 ++++++++++++++++++++++++++++++++++++++++++++++++
 xsd/atom031.xsd | 199 ----------------
 3 files changed, 600 insertions(+), 200 deletions(-)
 create mode 100644 xsd/atom.rng
 delete mode 100644 xsd/atom031.xsd

diff --git a/Makefile b/Makefile
index b20e897f6..2469179fc 100644
--- a/Makefile
+++ b/Makefile
@@ -82,7 +82,7 @@ build/news-rss.xml : NOVALID_IGNORE:=true
 build/news-rss.xml : VFLAGS_OUT=--noout --schema xsd/rss20.xsd
 build/news-atom.xml : STYLE=xsl/atom.xsl
 build/news-atom.xml : NOVALID_IGNORE:=true
-build/news-atom.xml : VFLAGS_OUT=--noout --schema xsd/atom031.xsd
+build/news-atom.xml : VFLAGS_OUT=--noout --relaxng xsd/atom.rng
 
 #.INTERMEDIATE: news.xml
 news.xml: $(NEWSITEMS)
diff --git a/xsd/atom.rng b/xsd/atom.rng
new file mode 100644
index 000000000..ac63ec4fc
--- /dev/null
+++ b/xsd/atom.rng
@@ -0,0 +1,599 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  -*- rnc -*-
+  RELAX NG Compact Syntax Grammar for the
+  Atom Format Specification
+  draft-ietf-atompub-format-10
+-->
+<grammar xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:s="http://www.ascc.net/xml/schematron" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
+  <start>
+    <choice>
+      <ref name="atomFeed"/>
+      <ref name="atomEntry"/>
+    </choice>
+  </start>
+  <!-- Common attributes -->
+  <define name="atomCommonAttributes">
+    <optional>
+      <attribute name="xml:base">
+        <ref name="atomUri"/>
+      </attribute>
+    </optional>
+    <optional>
+      <attribute name="xml:lang">
+        <ref name="atomLanguageTag"/>
+      </attribute>
+    </optional>
+    <zeroOrMore>
+      <ref name="undefinedAttribute"/>
+    </zeroOrMore>
+  </define>
+  <!-- Text Constructs -->
+  <define name="atomPlainTextConstruct">
+    <ref name="atomCommonAttributes"/>
+    <optional>
+      <attribute name="type">
+        <choice>
+          <value>text</value>
+          <value>html</value>
+        </choice>
+      </attribute>
+    </optional>
+    <text/>
+  </define>
+  <define name="atomXHTMLTextConstruct">
+    <ref name="atomCommonAttributes"/>
+    <attribute name="type">
+      <value>xhtml</value>
+    </attribute>
+    <ref name="xhtmlDiv"/>
+  </define>
+  <define name="atomTextConstruct">
+    <choice>
+      <ref name="atomPlainTextConstruct"/>
+      <ref name="atomXHTMLTextConstruct"/>
+    </choice>
+  </define>
+  <!-- Person Construct -->
+  <define name="atomPersonConstruct">
+    <ref name="atomCommonAttributes"/>
+    <interleave>
+      <element name="atom:name">
+        <text/>
+      </element>
+      <optional>
+        <element name="atom:uri">
+          <ref name="atomUri"/>
+        </element>
+      </optional>
+      <optional>
+        <element name="atom:email">
+          <ref name="atomEmailAddress"/>
+        </element>
+      </optional>
+      <zeroOrMore>
+        <ref name="extensionElement"/>
+      </zeroOrMore>
+    </interleave>
+  </define>
+  <!-- Date Construct -->
+  <define name="atomDateConstruct">
+    <ref name="atomCommonAttributes"/>
+    <data type="dateTime"/>
+  </define>
+  <!-- atom:feed -->
+  <define name="atomFeed">
+    <element name="atom:feed">
+      <s:rule context="atom:feed">
+        <s:assert test="atom:author or not(atom:entry[not(atom:author)])">An atom:feed must have an atom:author unless all of its atom:entry children have an atom:author.</s:assert>
+      </s:rule>
+      <ref name="atomCommonAttributes"/>
+      <interleave>
+        <zeroOrMore>
+          <ref name="atomAuthor"/>
+        </zeroOrMore>
+        <zeroOrMore>
+          <ref name="atomCategory"/>
+        </zeroOrMore>
+        <zeroOrMore>
+          <ref name="atomContributor"/>
+        </zeroOrMore>
+        <optional>
+          <ref name="atomGenerator"/>
+        </optional>
+        <optional>
+          <ref name="atomIcon"/>
+        </optional>
+        <ref name="atomId"/>
+        <zeroOrMore>
+          <ref name="atomLink"/>
+        </zeroOrMore>
+        <optional>
+          <ref name="atomLogo"/>
+        </optional>
+        <optional>
+          <ref name="atomRights"/>
+        </optional>
+        <optional>
+          <ref name="atomSubtitle"/>
+        </optional>
+        <ref name="atomTitle"/>
+        <ref name="atomUpdated"/>
+        <zeroOrMore>
+          <ref name="extensionElement"/>
+        </zeroOrMore>
+      </interleave>
+      <zeroOrMore>
+        <ref name="atomEntry"/>
+      </zeroOrMore>
+    </element>
+  </define>
+  <!-- atom:entry -->
+  <define name="atomEntry">
+    <element name="atom:entry">
+      <s:rule context="atom:entry">
+        <s:assert test="atom:link[@rel='alternate'] or atom:link[not(@rel)] or atom:content">An atom:entry must have at least one atom:link element with a rel attribute of 'alternate' or an atom:content.</s:assert>
+      </s:rule>
+      <s:rule context="atom:entry">
+        <s:assert test="atom:author or ../atom:author or atom:source/atom:author">An atom:entry must have an atom:author if its feed does not.</s:assert>
+      </s:rule>
+      <ref name="atomCommonAttributes"/>
+      <interleave>
+        <zeroOrMore>
+          <ref name="atomAuthor"/>
+        </zeroOrMore>
+        <zeroOrMore>
+          <ref name="atomCategory"/>
+        </zeroOrMore>
+        <optional>
+          <ref name="atomContent"/>
+        </optional>
+        <zeroOrMore>
+          <ref name="atomContributor"/>
+        </zeroOrMore>
+        <ref name="atomId"/>
+        <zeroOrMore>
+          <ref name="atomLink"/>
+        </zeroOrMore>
+        <optional>
+          <ref name="atomPublished"/>
+        </optional>
+        <optional>
+          <ref name="atomRights"/>
+        </optional>
+        <optional>
+          <ref name="atomSource"/>
+        </optional>
+        <optional>
+          <ref name="atomSummary"/>
+        </optional>
+        <ref name="atomTitle"/>
+        <ref name="atomUpdated"/>
+        <zeroOrMore>
+          <ref name="extensionElement"/>
+        </zeroOrMore>
+      </interleave>
+    </element>
+  </define>
+  <!-- atom:content -->
+  <define name="atomInlineTextContent">
+    <element name="atom:content">
+      <ref name="atomCommonAttributes"/>
+      <optional>
+        <attribute name="type">
+          <choice>
+            <value>text</value>
+            <value>html</value>
+          </choice>
+        </attribute>
+      </optional>
+      <zeroOrMore>
+        <text/>
+      </zeroOrMore>
+    </element>
+  </define>
+  <define name="atomInlineXHTMLContent">
+    <element name="atom:content">
+      <ref name="atomCommonAttributes"/>
+      <attribute name="type">
+        <value>xhtml</value>
+      </attribute>
+      <ref name="xhtmlDiv"/>
+    </element>
+  </define>
+  <define name="atomInlineOtherContent">
+    <element name="atom:content">
+      <ref name="atomCommonAttributes"/>
+      <optional>
+        <attribute name="type">
+          <ref name="atomMediaType"/>
+        </attribute>
+      </optional>
+      <zeroOrMore>
+        <choice>
+          <text/>
+          <ref name="anyElement"/>
+        </choice>
+      </zeroOrMore>
+    </element>
+  </define>
+  <define name="atomOutOfLineContent">
+    <element name="atom:content">
+      <ref name="atomCommonAttributes"/>
+      <optional>
+        <attribute name="type">
+          <ref name="atomMediaType"/>
+        </attribute>
+      </optional>
+      <attribute name="src">
+        <ref name="atomUri"/>
+      </attribute>
+      <empty/>
+    </element>
+  </define>
+  <define name="atomContent">
+    <choice>
+      <ref name="atomInlineTextContent"/>
+      <ref name="atomInlineXHTMLContent"/>
+      <ref name="atomInlineOtherContent"/>
+      <ref name="atomOutOfLineContent"/>
+    </choice>
+  </define>
+  <!-- atom:author -->
+  <define name="atomAuthor">
+    <element name="atom:author">
+      <ref name="atomPersonConstruct"/>
+    </element>
+  </define>
+  <!-- atom:category -->
+  <define name="atomCategory">
+    <element name="atom:category">
+      <ref name="atomCommonAttributes"/>
+      <attribute name="term"/>
+      <optional>
+        <attribute name="scheme">
+          <ref name="atomUri"/>
+        </attribute>
+      </optional>
+      <optional>
+        <attribute name="label"/>
+      </optional>
+      <ref name="undefinedContent"/>
+    </element>
+  </define>
+  <!-- atom:contributor -->
+  <define name="atomContributor">
+    <element name="atom:contributor">
+      <ref name="atomPersonConstruct"/>
+    </element>
+  </define>
+  <!-- atom:generator -->
+  <define name="atomGenerator">
+    <element name="atom:generator">
+      <ref name="atomCommonAttributes"/>
+      <optional>
+        <attribute name="uri">
+          <ref name="atomUri"/>
+        </attribute>
+      </optional>
+      <optional>
+        <attribute name="version"/>
+      </optional>
+      <text/>
+    </element>
+  </define>
+  <!-- atom:icon -->
+  <define name="atomIcon">
+    <element name="atom:icon">
+      <ref name="atomCommonAttributes"/>
+      <ref name="atomUri"/>
+    </element>
+  </define>
+  <!-- atom:id -->
+  <define name="atomId">
+    <element name="atom:id">
+      <ref name="atomCommonAttributes"/>
+      <ref name="atomUri"/>
+    </element>
+  </define>
+  <!-- atom:logo -->
+  <define name="atomLogo">
+    <element name="atom:logo">
+      <ref name="atomCommonAttributes"/>
+      <ref name="atomUri"/>
+    </element>
+  </define>
+  <!-- atom:link -->
+  <define name="atomLink">
+    <element name="atom:link">
+      <ref name="atomCommonAttributes"/>
+      <attribute name="href">
+        <ref name="atomUri"/>
+      </attribute>
+      <optional>
+        <attribute name="rel">
+          <choice>
+            <ref name="atomNCName"/>
+            <ref name="atomUri"/>
+          </choice>
+        </attribute>
+      </optional>
+      <optional>
+        <attribute name="type">
+          <ref name="atomMediaType"/>
+        </attribute>
+      </optional>
+      <optional>
+        <attribute name="hreflang">
+          <ref name="atomLanguageTag"/>
+        </attribute>
+      </optional>
+      <optional>
+        <attribute name="title"/>
+      </optional>
+      <optional>
+        <attribute name="length"/>
+      </optional>
+      <ref name="undefinedContent"/>
+    </element>
+  </define>
+  <!-- atom:published -->
+  <define name="atomPublished">
+    <element name="atom:published">
+      <ref name="atomDateConstruct"/>
+    </element>
+  </define>
+  <!-- atom:rights -->
+  <define name="atomRights">
+    <element name="atom:rights">
+      <ref name="atomTextConstruct"/>
+    </element>
+  </define>
+  <!-- atom:source -->
+  <define name="atomSource">
+    <element name="atom:source">
+      <ref name="atomCommonAttributes"/>
+      <interleave>
+        <optional>
+          <ref name="atomAuthor"/>
+        </optional>
+        <zeroOrMore>
+          <ref name="atomCategory"/>
+        </zeroOrMore>
+        <zeroOrMore>
+          <ref name="atomContributor"/>
+        </zeroOrMore>
+        <optional>
+          <ref name="atomGenerator"/>
+        </optional>
+        <optional>
+          <ref name="atomIcon"/>
+        </optional>
+        <optional>
+          <ref name="atomId"/>
+        </optional>
+        <zeroOrMore>
+          <ref name="atomLink"/>
+        </zeroOrMore>
+        <optional>
+          <ref name="atomLogo"/>
+        </optional>
+        <optional>
+          <ref name="atomRights"/>
+        </optional>
+        <optional>
+          <ref name="atomSubtitle"/>
+        </optional>
+        <optional>
+          <ref name="atomTitle"/>
+        </optional>
+        <optional>
+          <ref name="atomUpdated"/>
+        </optional>
+        <zeroOrMore>
+          <ref name="extensionElement"/>
+        </zeroOrMore>
+      </interleave>
+    </element>
+  </define>
+  <!-- atom:subtitle -->
+  <define name="atomSubtitle">
+    <element name="atom:subtitle">
+      <ref name="atomTextConstruct"/>
+    </element>
+  </define>
+  <!-- atom:summary -->
+  <define name="atomSummary">
+    <element name="atom:summary">
+      <ref name="atomTextConstruct"/>
+    </element>
+  </define>
+  <!-- atom:title -->
+  <define name="atomTitle">
+    <element name="atom:title">
+      <ref name="atomTextConstruct"/>
+    </element>
+  </define>
+  <!-- atom:updated -->
+  <define name="atomUpdated">
+    <element name="atom:updated">
+      <ref name="atomDateConstruct"/>
+    </element>
+  </define>
+  <!-- Low-level simple types -->
+  <define name="atomNCName">
+    <data type="string">
+      <param name="minLength">1</param>
+      <param name="pattern">[^:]*</param>
+    </data>
+  </define>
+  <!-- Whatever a media type is, it contains at least one slash -->
+  <define name="atomMediaType">
+    <data type="string">
+      <param name="pattern">.+/.+</param>
+    </data>
+  </define>
+  <!-- As defined in RFC 3066 -->
+  <define name="atomLanguageTag">
+    <data type="string">
+      <param name="pattern">[A-Za-z]{1,8}(-[A-Za-z0-9]{1,8})*</param>
+    </data>
+  </define>
+  <!--
+    Unconstrained; it's not entirely clear how IRI fit into
+    xsd:anyURI so let's not try to constrain it here
+  -->
+  <define name="atomUri">
+    <text/>
+  </define>
+  <!-- Whatever an email address is, it contains at least one @ -->
+  <define name="atomEmailAddress">
+    <data type="string">
+      <param name="pattern">.+@.+</param>
+    </data>
+  </define>
+  <!-- Simple Extension -->
+  <define name="simpleExtensionElement">
+    <element>
+      <anyName>
+        <except>
+          <nsName ns="http://www.w3.org/2005/Atom"/>
+        </except>
+      </anyName>
+      <text/>
+    </element>
+  </define>
+  <!-- Structured Extension -->
+  <define name="structuredExtensionElement">
+    <element>
+      <anyName>
+        <except>
+          <nsName ns="http://www.w3.org/2005/Atom"/>
+        </except>
+      </anyName>
+      <choice>
+        <group>
+          <oneOrMore>
+            <attribute>
+              <anyName/>
+            </attribute>
+          </oneOrMore>
+          <zeroOrMore>
+            <choice>
+              <text/>
+              <ref name="anyElement"/>
+            </choice>
+          </zeroOrMore>
+        </group>
+        <group>
+          <zeroOrMore>
+            <attribute>
+              <anyName/>
+            </attribute>
+          </zeroOrMore>
+          <group>
+            <optional>
+              <text/>
+            </optional>
+            <oneOrMore>
+              <ref name="anyElement"/>
+            </oneOrMore>
+            <zeroOrMore>
+              <choice>
+                <text/>
+                <ref name="anyElement"/>
+              </choice>
+            </zeroOrMore>
+          </group>
+        </group>
+      </choice>
+    </element>
+  </define>
+  <!-- Other Extensibility -->
+  <define name="extensionElement">
+    <choice>
+      <ref name="simpleExtensionElement"/>
+      <ref name="structuredExtensionElement"/>
+    </choice>
+  </define>
+  <define name="undefinedAttribute">
+    <attribute>
+      <anyName>
+        <except>
+          <name>xml:base</name>
+          <name>xml:lang</name>
+          <nsName ns=""/>
+        </except>
+      </anyName>
+    </attribute>
+  </define>
+  <define name="undefinedContent">
+    <zeroOrMore>
+      <choice>
+        <text/>
+        <ref name="anyForeignElement"/>
+      </choice>
+    </zeroOrMore>
+  </define>
+  <define name="anyElement">
+    <element>
+      <anyName/>
+      <zeroOrMore>
+        <choice>
+          <attribute>
+            <anyName/>
+          </attribute>
+          <text/>
+          <ref name="anyElement"/>
+        </choice>
+      </zeroOrMore>
+    </element>
+  </define>
+  <define name="anyForeignElement">
+    <element>
+      <anyName>
+        <except>
+          <nsName ns="http://www.w3.org/2005/Atom"/>
+        </except>
+      </anyName>
+      <zeroOrMore>
+        <choice>
+          <attribute>
+            <anyName/>
+          </attribute>
+          <text/>
+          <ref name="anyElement"/>
+        </choice>
+      </zeroOrMore>
+    </element>
+  </define>
+  <!-- XHTML -->
+  <define name="anyXHTML">
+    <element>
+      <nsName ns="http://www.w3.org/1999/xhtml"/>
+      <zeroOrMore>
+        <choice>
+          <attribute>
+            <anyName/>
+          </attribute>
+          <text/>
+          <ref name="anyXHTML"/>
+        </choice>
+      </zeroOrMore>
+    </element>
+  </define>
+  <define name="xhtmlDiv">
+    <element name="xhtml:div">
+      <zeroOrMore>
+        <choice>
+          <attribute>
+            <anyName/>
+          </attribute>
+          <text/>
+          <ref name="anyXHTML"/>
+        </choice>
+      </zeroOrMore>
+    </element>
+  </define>
+</grammar>
+<!-- EOF -->
diff --git a/xsd/atom031.xsd b/xsd/atom031.xsd
deleted file mode 100644
index aa9595aaa..000000000
--- a/xsd/atom031.xsd
+++ /dev/null
@@ -1,199 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<xs:schema targetNamespace="http://purl.org/atom/ns#" elementFormDefault="qualified" attributeFormDefault="unqualified"
-	xmlns:atom="http://purl.org/atom/ns#" xmlns:xs="http://www.w3.org/2001/XMLSchema">
-	<xs:annotation>
-		<xs:documentation>
-			This version of the Atom API schema is based on version 0.3 of the Atom API and format specifications, 
-			found here http://www.ietf.org/internet-drafts/draft-ietf-atompub-protocol-00.txt
-			and here http://www.ietf.org/internet-drafts/draft-ietf-atompub-format-00.txt.
-		</xs:documentation>
-	</xs:annotation>
-	<xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2001/03/xml.xsd" />
-	<xs:element name="feed" type="atom:feedType">
-		<xs:annotation>
-			<xs:documentation>
-				The Atom feed is defined in section 4 of the format spec.
-			</xs:documentation>
-		</xs:annotation>
-	</xs:element>
-	<xs:complexType name="feedinfoType">
-		<xs:choice maxOccurs="unbounded">
-			<xs:element name="title" type="atom:contentType" />
-			<xs:element name="author" type="atom:authorType" />
-			<xs:element name="contributor" type="atom:authorType" />
-			<xs:element name="tagline" type="atom:contentType" />
-			<xs:element name="link" type="atom:linkType" />
-			<xs:element name="id" type="atom:uriType" />
-			<xs:element name="generator" type="atom:generatorType" />
-			<xs:element name="copyright" type="atom:contentType" />
-			<xs:element name="info" type="atom:contentType" />
-			<xs:element name="modified" type="atom:dateTimeType" />
-		</xs:choice>
-		<xs:attributeGroup ref="atom:commonAttributes"/>
-	</xs:complexType>
-	<xs:complexType name="feedType">
-		<xs:sequence>
-			<xs:element name="feedinfo" type="atom:feedinfoType" />
-			<xs:element name="entry" type="atom:entryType" minOccurs="0" maxOccurs="unbounded" />
-		</xs:sequence>
-		<xs:attribute name="version" type="atom:versionType" use="required" />
-		<xs:attributeGroup ref="atom:commonAttributes"/>
-	</xs:complexType>
-	<xs:element name="entry" type="atom:entryType">
-		<xs:annotation>
-			<xs:documentation>
-				The Atom feed is defined in section 4.13 of the format spec.
-			</xs:documentation>
-		</xs:annotation>
-	</xs:element>
-	<xs:complexType name="entryType">
-		<xs:choice maxOccurs="unbounded">
-			<xs:element name="title" type="atom:contentType" />
-			<xs:element name="author" type="atom:authorType" />
-			<xs:element name="id" type="atom:stringType" />
-			<xs:element name="modified" type="atom:dateTimeType" />
-			<xs:element name="issued" type="atom:dateTimeType" />
-			<xs:element name="created" type="atom:dateTimeType" />
-			<xs:element name="summary" type="atom:contentType" />
-			<xs:element name="generator" type="atom:generatorType" />
-			<xs:element name="link" type="atom:linkType" />
-			<xs:element name="contributor" type="atom:authorType" />
-			<xs:element name="content" type="atom:contentType" />
-		</xs:choice>
-		<xs:attribute name="version" type="atom:versionType" use="required" />
-		<xs:attributeGroup ref="atom:commonAttributes"/>
-	</xs:complexType>
-	<xs:complexType name="contentType" mixed="true">
-		<xs:annotation>
-			<xs:documentation>
-				The Atom content construct is defined in section 3.1 of the format spec.
-			</xs:documentation>
-		</xs:annotation>
-		<xs:sequence>
-			<xs:any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded" />
-		</xs:sequence>
-		<xs:attribute name="type" use="optional" default="text/plain" />
-		<xs:attribute name="mode" use="optional" default="xml">
-			<xs:simpleType>
-				<xs:restriction base="xs:token">
-					<xs:enumeration value="xml" />
-					<xs:enumeration value="escaped" />
-					<xs:enumeration value="base64" />
-				</xs:restriction>
-			</xs:simpleType>
-		</xs:attribute>
-		<xs:attributeGroup ref="atom:commonAttributes"/>
-	</xs:complexType>
-	<xs:complexType name="authorType">
-		<xs:annotation>
-			<xs:documentation>
-				The Atom person construct is defined in section 3.2 of the format spec.
-			</xs:documentation>
-		</xs:annotation>
-		<xs:sequence>
-			<xs:element name="name" type="atom:stringType" />
-			<xs:element name="url" type="atom:uriType" minOccurs="0" maxOccurs="1" />
-			<xs:element name="email" type="atom:emailType" minOccurs="0" maxOccurs="1" />
-		</xs:sequence>
-		<xs:attributeGroup ref="atom:commonAttributes"/>
-	</xs:complexType>
-	<xs:complexType name="linkType">
-		<xs:annotation>
-			<xs:documentation>
-				The Atom link construct is defined in section 3.4 of the format spec.
-			</xs:documentation>
-		</xs:annotation>
-		<xs:attribute name="rel" use="required">
-			<xs:simpleType>
-				<xs:restriction base="xs:string">
-					<xs:enumeration value="alternate" />
-					<xs:enumeration value="start" />
-					<xs:enumeration value="next" />
-					<xs:enumeration value="prev" />
-					<xs:enumeration value="service.edit" />
-					<xs:enumeration value="service.post" />
-					<xs:enumeration value="service.feed" />
-				</xs:restriction>
-			</xs:simpleType>
-		</xs:attribute>
-		<xs:attribute name="type" use="required" type="xs:string" />
-		<xs:attribute name="href" use="required" type="xs:anyURI" />
-		<xs:attribute name="hreflang" use="optional" type="xs:NMTOKEN" />
-		<xs:attribute name="title" use="optional" type="xs:string" />
-		<xs:attributeGroup ref="atom:commonAttributes"/>
-	</xs:complexType>
-	<xs:complexType name="generatorType">
-		<xs:annotation>
-			<xs:documentation>
-				The Atom generator element is defined in section 4.9 of the format spec.
-			</xs:documentation>
-		</xs:annotation>
-		<xs:simpleContent>
-			<xs:extension base="xs:string">
-				<xs:attribute name="url" use="optional" type="xs:anyURI" />
-				<xs:attribute name="version" use="optional" type="atom:versionType" />
-				<xs:attributeGroup ref="atom:commonAttributes"/>
-			</xs:extension>
-		</xs:simpleContent>
-	</xs:complexType>
-	<xs:complexType name="uriType">
-		<xs:simpleContent>
-			<xs:extension base="xs:anyURI">
-				<xs:attributeGroup ref="atom:commonAttributes"/>
-			</xs:extension>
-		</xs:simpleContent>
-	</xs:complexType>
-	<xs:complexType name="stringType">
-		<xs:simpleContent>
-			<xs:extension base="xs:string">
-				<xs:attributeGroup ref="atom:commonAttributes"/>
-			</xs:extension>
-		</xs:simpleContent>
-	</xs:complexType>
-	<xs:complexType name="dateTimeType">
-		<xs:simpleContent>
-			<xs:extension base="atom:iso8601dateTime">
-				<xs:attributeGroup ref="atom:commonAttributes"/>
-			</xs:extension>
-		</xs:simpleContent>
-	</xs:complexType>
-	<xs:simpleType name="iso8601dateTime">
-		<xs:annotation>
-			<xs:documentation>
-				The Atom date construct is defined in section 3.3 of the format spec.
-			</xs:documentation>
-		</xs:annotation>
-		<xs:union memberTypes="xs:dateTime xs:date xs:gYearMonth xs:gYear"/>
-	</xs:simpleType>
-	<xs:simpleType name="versionType">
-		<xs:annotation>
-			<xs:documentation>
-				General description for a version number.
-			</xs:documentation>
-		</xs:annotation>
-		<xs:restriction base="xs:normalizedString">
-			<xs:pattern value="\d+\.\d+" />
-		</xs:restriction>
-	</xs:simpleType>
-	<xs:complexType name="emailType">
-		<xs:simpleContent>
-			<xs:extension base="atom:emailSimpleType">
-				<xs:attributeGroup ref="atom:commonAttributes"/>
-			</xs:extension>
-		</xs:simpleContent>
-	</xs:complexType>
-	<xs:simpleType name="emailSimpleType">
-		<xs:annotation>
-			<xs:documentation>
-				Schema definition for an email address.
-			</xs:documentation>
-		</xs:annotation>
-		<xs:restriction base="xs:normalizedString">
-			<xs:pattern value="\w+@(\w+\.)+\w+" />
-		</xs:restriction>
-	</xs:simpleType>
-	<xs:attributeGroup name="commonAttributes">
-		<xs:attribute ref="xml:base" />
-		<xs:attribute ref="xml:lang" />
-	</xs:attributeGroup>
-</xs:schema>
\ No newline at end of file