<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<!--
root element
-->
<xsd:element name="bibsonomy" type="bibsonomyXML"/>
<!--
root element type
-->
<xsd:complexType name="bibsonomyXML">
<xsd:sequence>
<xsd:choice>
<!-- container -->
<xsd:element name="users" type="UsersType"/>
<xsd:element name="groups" type="GroupsType"/>
<xsd:element name="tags" type="TagsType"/>
<xsd:element name="posts" type="PostsType"/>
<!-- single elements -->
<xsd:element name="user" type="UserType"/>
<xsd:element name="group" type="GroupType"/>
<xsd:element name="post" type="PostType"/>
<xsd:element name="tag" type="TagType"/>
<xsd:element name="bookmark" type="BookmarkType"/>
<xsd:element name="bibtex" type="BibtexType"/>
<!-- error -->
<xsd:element name="error" type="xsd:string"/>
<!-- hashes to return when creating / updating resources -->
<xsd:element name="resourcehash" type="hashType"/>
<!-- user-/group-ids to return wehn creating / updating users / groups -->
<xsd:element name="userid" type="xsd:string"/>
<xsd:element name="groupid" type="xsd:string"/>
<!-- uri to return (i.e. on uploading documents) -->
<xsd:element name="uri" type="xsd:anyURI"/>
</xsd:choice>
</xsd:sequence>
<!-- status flag: contains "ok" when request was successful, "fail" otherwise -->
<xsd:attribute name="stat" type="statType"/>
</xsd:complexType>
<!--
this type encapsulates a list of users
-->
<xsd:complexType name="UsersType">
<xsd:sequence>
<xsd:element maxOccurs="unbounded" minOccurs="0" name="user" type="UserType"/>
</xsd:sequence>
<xsd:attribute name="start" type="positiveIntegerIncludingZero" use="required"/>
<xsd:attribute name="end" type="positiveIntegerIncludingZero" use="required"/>
<xsd:attribute name="next" type="xsd:anyURI"/>
</xsd:complexType>
<!--
a user
-->
<xsd:complexType name="UserType">
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="realname" type="xsd:string"/>
<xsd:attribute name="email" type="xsd:string"/>
<xsd:attribute name="homepage" type="xsd:string"/>
<xsd:attribute name="password" type="xsd:string"/>
<xsd:attribute name="spammer" type="xsd:positiveInteger"/>
<xsd:attribute name="prediction" type="xsd:positiveInteger"/>
<xsd:attribute name="algorithm" type="xsd:string"/>
<xsd:attribute name="toClassify" type="xsd:positiveInteger"/>
<xsd:attribute name="classifierMode" type="xsd:string"/>
<!-- link to details page -->
<xsd:attribute name="href" type="xsd:anyURI"/>
</xsd:complexType>
<!--
this type encapsulates a list of groups
-->
<xsd:complexType name="GroupsType">
<xsd:sequence>
<xsd:element maxOccurs="unbounded" minOccurs="0" name="group" type="GroupType"/>
</xsd:sequence>
<xsd:attribute name="start" type="positiveIntegerIncludingZero" use="required"/>
<xsd:attribute name="end" type="positiveIntegerIncludingZero" use="required"/>
<xsd:attribute name="next" type="xsd:anyURI"/>
</xsd:complexType>
<!--
a group
-->
<xsd:complexType name="GroupType">
<xsd:sequence>
<xsd:element maxOccurs="unbounded" minOccurs="0" name="user" type="UserType"/>
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="description" type="xsd:string"/>
<!-- link to details page -->
<xsd:attribute name="href" type="xsd:anyURI"/>
</xsd:complexType>
<!--
this type encapsulated a list of tags
-->
<xsd:complexType name="TagsType">
<xsd:sequence>
<xsd:element maxOccurs="unbounded" minOccurs="0" name="tag" type="TagType"/>
</xsd:sequence>
<xsd:attribute name="start" type="positiveIntegerIncludingZero" use="required"/>
<xsd:attribute name="end" type="positiveIntegerIncludingZero" use="required"/>
<xsd:attribute name="next" type="xsd:anyURI"/>
</xsd:complexType>
<!--
a tag
-->
<xsd:complexType name="TagType">
<xsd:sequence>
<xsd:element maxOccurs="unbounded" minOccurs="0" name="subTags" type="TagsType"/>
<xsd:element maxOccurs="unbounded" minOccurs="0" name="superTags" type="TagsType"/>
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="globalcount" type="positiveIntegerIncludingZero"/>
<xsd:attribute name="usercount" type="positiveIntegerIncludingZero"/>
<!-- link to details page -->
<xsd:attribute name="href" type="xsd:anyURI"/>
</xsd:complexType>
<!--
this type encapsulated a list of posts
-->
<xsd:complexType name="PostsType">
<xsd:sequence>
<xsd:element maxOccurs="unbounded" minOccurs="0" name="post" type="PostType"/>
</xsd:sequence>
<xsd:attribute name="start" type="positiveIntegerIncludingZero" use="required"/>
<xsd:attribute name="end" type="positiveIntegerIncludingZero" use="required"/>
<xsd:attribute name="next" type="xsd:anyURI"/>
</xsd:complexType>
<!--
a post
-->
<xsd:complexType name="PostType">
<xsd:sequence>
<xsd:element name="user" type="UserType"/>
<xsd:element maxOccurs="unbounded" minOccurs="0" name="group" type="GroupType"/>
<!-- Note: a post must have at least one tag -->
<xsd:element maxOccurs="unbounded" name="tag" type="TagType"/>
<xsd:choice>
<xsd:element name="bookmark" maxOccurs="1" type="BookmarkType"/>
<xsd:element name="bibtex" maxOccurs="1" type="BibtexType"/>
</xsd:choice>
</xsd:sequence>
<xsd:attribute name="description" type="xsd:string"/>
<xsd:attribute name="postingdate" type="xsd:dateTime"/>
</xsd:complexType>
<!--
a bookmark
-->
<xsd:complexType name="BookmarkType">
<xsd:attribute name="title" type="xsd:string" use="required"/>
<xsd:attribute name="url" type="xsd:anyURI" use="required"/>
<!-- hash value identifying this resource -->
<xsd:attribute name="interhash" type="xsd:string"/>
<xsd:attribute name="intrahash" type="xsd:string"/>
<!-- link to all posts of this bookmark -->
<xsd:attribute name="href" type="xsd:anyURI"/>
</xsd:complexType>
<!--
a bibtex
-->
<xsd:complexType name="BibtexType">
<xsd:attribute name="title" type="xsd:string" use="required"/>
<xsd:attribute name="bibtexKey" type="xsd:string" use="required"/>
<xsd:attribute name="bKey" type="xsd:string"/>
<xsd:attribute name="misc" type="xsd:string"/>
<xsd:attribute name="bibtexAbstract" type="xsd:string"/>
<xsd:attribute name="entrytype" type="xsd:string" use="required"/>
<xsd:attribute name="address" type="xsd:string"/>
<xsd:attribute name="annote" type="xsd:string"/>
<xsd:attribute name="author" type="xsd:string"/>
<xsd:attribute name="booktitle" type="xsd:string"/>
<xsd:attribute name="chapter" type="xsd:string"/>
<xsd:attribute name="crossref" type="xsd:string"/>
<xsd:attribute name="edition" type="xsd:string"/>
<xsd:attribute name="editor" type="xsd:string"/>
<xsd:attribute name="howpublished" type="xsd:string"/>
<xsd:attribute name="institution" type="xsd:string"/>
<xsd:attribute name="organization" type="xsd:string"/>
<xsd:attribute name="journal" type="xsd:string"/>
<xsd:attribute name="note" type="xsd:string"/>
<xsd:attribute name="number" type="xsd:string"/>
<xsd:attribute name="pages" type="xsd:string"/>
<xsd:attribute name="publisher" type="xsd:string"/>
<xsd:attribute name="school" type="xsd:string"/>
<xsd:attribute name="series" type="xsd:string"/>
<xsd:attribute name="volume" type="xsd:string"/>
<xsd:attribute name="day" type="xsd:string"/>
<xsd:attribute name="month" type="xsd:string"/>
<xsd:attribute name="year" type="xsd:string" use="required"/>
<xsd:attribute name="type" type="xsd:string"/>
<!-- <xsd:attribute name="scraperId" type="xsd:positiveInteger"/> -->
<xsd:attribute name="url" type="xsd:string"/>
<xsd:attribute name="privnote" type="xsd:string"/>
<!-- hash value identifying this resource -->
<xsd:attribute name="intrahash" type="xsd:string"/>
<xsd:attribute name="interhash" type="xsd:string"/>
<!-- link to all posts of this bibtex -->
<xsd:attribute name="href" type="xsd:anyURI"/>
</xsd:complexType>
<!--
helper type, as xsd:positiveInteger alone does not include zero
-->
<xsd:simpleType name="positiveIntegerIncludingZero">
<xsd:restriction base="xsd:integer">
<xsd:minInclusive value="0"/>
</xsd:restriction>
</xsd:simpleType>
<!--
type for resource hashes
-->
<xsd:simpleType name="hashType">
<xsd:restriction base="xsd:string">
<xsd:length value="32"/>
<xsd:pattern value="([a-z]|[0-9])*"/>
</xsd:restriction>
</xsd:simpleType>
<!--
type for status message
-->
<xsd:simpleType name="statType">
<xsd:restriction base="xsd:string">
<xsd:enumeration value="ok"/>
<xsd:enumeration value="fail"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:schema>
