579 lines
24 KiB
XML
579 lines
24 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!--
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OpenSearch 1.1 Draft 6 XML Schema
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Copyright (c) 2021 ~lucidiot
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, version 3.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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This file was derived from the OpenSearch 1.1 Draft 6 specification at
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<https://github.com/dewitt/opensearch/blob/8446769af24e313f308beeb590173c1aca57de9f/opensearch-1-1-draft-6.md>
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-->
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<xs:schema
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targetNamespace="http://a9.com/-/spec/opensearch/1.1/"
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elementFormDefault="qualified"
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xmlns="http://a9.com/-/spec/opensearch/1.1/"
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xmlns:geo="http://a9.com/-/opensearch/extensions/geo/1.0/"
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xmlns:parameters="http://a9.com/-/spec/opensearch/extensions/parameters/1.0/"
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xmlns:referrer="http://a9.com/-/opensearch/extensions/referrer/1.0/"
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xmlns:suggestions="http://www.opensearch.org/specifications/opensearch/extensions/suggestions/1.1/"
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xmlns:time="http://a9.com/-/opensearch/extensions/time/1.0/"
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xmlns:xs="http://www.w3.org/2001/XMLSchema"
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>
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<xs:import
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namespace="http://a9.com/-/opensearch/extensions/geo/1.0/"
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schemaLocation="geo.xsd"
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/>
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<xs:import
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namespace="http://a9.com/-/spec/opensearch/extensions/parameters/1.0/"
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schemaLocation="parameters.xsd"
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/>
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<xs:import
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namespace="http://a9.com/-/opensearch/extensions/referrer/1.0/"
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schemaLocation="referrer.xsd"
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/>
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<xs:import
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namespace="http://www.opensearch.org/specifications/opensearch/extensions/suggestions/1.1/"
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schemaLocation="suggestions.xsd"
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/>
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<xs:import
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namespace="http://a9.com/-/opensearch/extensions/time/1.0/"
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schemaLocation="time.xsd"
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/>
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<xs:simpleType name="ShortName">
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<xs:annotation>
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<xs:documentation>
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Contains a brief human-readable title that identifies this search engine.
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</xs:documentation>
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</xs:annotation>
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<xs:restriction base="xs:string">
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<xs:maxLength value="16" />
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</xs:restriction>
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</xs:simpleType>
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<xs:simpleType name="Description">
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<xs:annotation>
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<xs:documentation>
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Contains a human-readable text description of the search engine.
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</xs:documentation>
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</xs:annotation>
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<xs:restriction base="xs:string">
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<xs:maxLength value="1024" />
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</xs:restriction>
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</xs:simpleType>
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<xs:simpleType name="UrlRelToken">
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<xs:union>
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<xs:simpleType>
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<xs:restriction base="xs:string">
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<xs:enumeration value="results">
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<xs:annotation>
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<xs:documentation>
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Represents a request for search results in the specified format.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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<xs:enumeration value="suggestions">
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<xs:annotation>
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<xs:documentation>
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Represents a request for search suggestions in the specified format.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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<xs:enumeration value="self">
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<xs:annotation>
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<xs:documentation>
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Represents the canonical URL of this description document.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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<xs:enumeration value="collection">
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<xs:annotation>
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<xs:documentation>
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Represents a request for a set of resources.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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</xs:restriction>
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</xs:simpleType>
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<xs:simpleType>
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<xs:restriction base="xs:anyURI">
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<xs:pattern value="#[a-z][a-z-]+$" />
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</xs:restriction>
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</xs:simpleType>
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</xs:union>
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</xs:simpleType>
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<xs:simpleType name="UrlRel">
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<xs:annotation>
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<xs:documentation>
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Rel attribute strings can contain a space-delimited list of one or more semantically meaningful
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rel value tokens. An empty rel attribute value should be treated by the client as if the rel
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attribute was not present at all.
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If a client does not recognize the semantic meaning of any rel value token, then the containing
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Url should be ignored by the client.
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</xs:documentation>
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</xs:annotation>
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<xs:list itemType="UrlRelToken" />
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</xs:simpleType>
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<xs:complexType name="Url">
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<xs:annotation>
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<xs:documentation>
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Describes an interface by which a client can make requests for an external resource,
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such as search results, search suggestions, or additional description documents.
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</xs:documentation>
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</xs:annotation>
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<xs:sequence>
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<xs:element name="Parameter" type="parameters:Parameter" minOccurs="0" maxOccurs="unbounded" />
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</xs:sequence>
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<xs:attribute name="template" type="xs:string" use="required">
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<xs:annotation>
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<xs:documentation>
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The URL template to be processed according to the OpenSearch URL template syntax.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="type" type="xs:string" use="required">
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<xs:annotation>
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<xs:documentation>
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The MIME type of the resource being described.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="rel" type="UrlRel" default="results">
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<xs:annotation>
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<xs:documentation>
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The role of the resource being described in relation to the description document.
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Contains a space-delimited list of valid rel value tokens.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="indexOffset" type="xs:integer" default="1">
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<xs:annotation>
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<xs:documentation>
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The index number of the first search result.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="pageOffset" type="xs:integer" default="1">
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<xs:annotation>
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<xs:documentation>
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The page number of the first set of search results.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attributeGroup ref="parameters:UrlAttributes" />
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</xs:complexType>
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<xs:simpleType name="Contact">
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<xs:annotation>
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<xs:documentation>
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Contains an email address at which the maintainer of the description document can be reached.
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</xs:documentation>
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</xs:annotation>
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<xs:restriction base="xs:string">
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<xs:pattern value="([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})" />
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</xs:restriction>
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</xs:simpleType>
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<xs:simpleType name="Tags">
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<xs:annotation>
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<xs:documentation>
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Contains a set of words that are used as keywords to identify and categorize this search content. Tags must be a single word and are delimited by the space character.
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</xs:documentation>
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</xs:annotation>
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<xs:restriction base="xs:string">
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<xs:maxLength value="256" />
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</xs:restriction>
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</xs:simpleType>
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<xs:simpleType name="LongName">
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<xs:annotation>
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<xs:documentation>
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Contains an extended human-readable title that identifies this search engine.
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Search clients should use the value of the ShortName element if this element is not available.
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</xs:documentation>
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</xs:annotation>
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<xs:restriction base="xs:string">
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<xs:maxLength value="48" />
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</xs:restriction>
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</xs:simpleType>
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<xs:complexType name="Image">
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<xs:annotation>
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<xs:documentation>
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Contains a URL that identifies the location of an image that can be used in association with this search content.
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Image sizes are offered as a hint to the search client.
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The search client will choose the most appropriate image for the available space and should give preference
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to those listed first in the OpenSearch description document. Square aspect ratios are recommended.
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When possible, search engines should offer a 16x16 image of type "image/x-icon" or "image/vnd.microsoft.icon"
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(the Microsoft ICO format) and a 64x64 image of type "image/jpeg" or "image/png".
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</xs:documentation>
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</xs:annotation>
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<xs:simpleContent>
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<xs:extension base="xs:anyURI">
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<xs:attribute name="height" type="xs:positiveInteger" use="optional">
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<xs:annotation>
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<xs:documentation>
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Contains the height, in pixels, of this image.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="width" type="xs:positiveInteger" use="optional">
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<xs:annotation>
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<xs:documentation>
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Contains the width, in pixels, of this image.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="type" type="xs:string" use="optional">
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<xs:annotation>
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<xs:documentation>
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Contains the the MIME type of this image.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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</xs:extension>
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</xs:simpleContent>
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</xs:complexType>
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<xs:simpleType name="QueryRole">
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<xs:union>
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<xs:simpleType>
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<xs:restriction base="xs:string">
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<xs:enumeration value="request">
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<xs:annotation>
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<xs:documentation>
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Represents the search query that can be performed to retrieve the same set of search results.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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<xs:enumeration value="example">
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<xs:annotation>
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<xs:documentation>
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Represents a search query that can be performed to demonstrate the search engine.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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<xs:enumeration value="related">
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<xs:annotation>
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<xs:documentation>
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Represents a search query that can be performed to retrieve similar but different search results.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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<xs:enumeration value="correction">
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<xs:annotation>
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<xs:documentation>
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Represents a search query that can be performed to improve the result set, such as with a spelling correction.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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<xs:enumeration value="subset">
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<xs:annotation>
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<xs:documentation>
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Represents a search query that will narrow the current set of search results.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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<xs:enumeration value="superset">
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<xs:annotation>
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<xs:documentation>
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Represents a search query that will broaden the current set of search results.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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</xs:restriction>
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</xs:simpleType>
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<xs:simpleType>
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<xs:restriction base="xs:Name">
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<xs:pattern value=":" />
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</xs:restriction>
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</xs:simpleType>
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</xs:union>
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</xs:simpleType>
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<xs:simpleType name="QueryTitle">
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<xs:restriction base="xs:string">
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<xs:maxLength value="256" />
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</xs:restriction>
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</xs:simpleType>
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<xs:complexType name="Query">
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<xs:annotation>
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<xs:documentation>
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Defines a search query that can be performed by search clients.
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OpenSearch description documents should include at least one Query element of role="example"
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that is expected to return search results. Search clients may use this example query to
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validate that the search engine is working properly.
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Search engines should include a Query element of role="request" in each search response
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so that search clients can recreate the current search.
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</xs:documentation>
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</xs:annotation>
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<xs:attribute name="role" type="QueryRole" use="required">
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<xs:annotation>
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<xs:documentation>
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Contains a string identifying how the search client should interpret
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the search request defined by this Query element.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="title" type="QueryTitle" use="optional">
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<xs:annotation>
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<xs:documentation>
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Contains a human-readable plain text string describing the search request.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="totalResults" type="xs:nonNegativeInteger" use="optional">
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<xs:annotation>
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<xs:documentation>
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Contains the expected number of results to be found if the search request were made.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="searchTerms" type="xs:string" use="optional">
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<xs:annotation>
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<xs:documentation>
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Contains the value representing the searchTerms as an OpenSearch 1.1 parameter name.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="count" type="xs:nonNegativeInteger" use="optional">
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<xs:annotation>
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<xs:documentation>
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Contains the value representing the count as an OpenSearch 1.1 parameter name.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="startIndex" type="xs:integer" use="optional">
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<xs:annotation>
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<xs:documentation>
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Contains the value representing the startIndex as an OpenSearch 1.1 parameter name.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="startPage" type="xs:integer" use="optional">
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<xs:annotation>
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<xs:documentation>
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Contains the value representing the startPage as an OpenSearch 1.1 parameter name.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="language" type="Language" use="optional">
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<xs:annotation>
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<xs:documentation>
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Contains the value representing the language as an OpenSearch 1.1 parameter name.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="inputEncoding" type="InputEncoding" use="optional">
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<xs:annotation>
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<xs:documentation>
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Contains the value representing the inputEncoding as an OpenSearch 1.1 parameter name.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="outputEncoding" type="OutputEncoding" use="optional">
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<xs:annotation>
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<xs:documentation>
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Contains the value representing the outputEncoding as an OpenSearch 1.1 parameter name.
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</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attributeGroup ref="geo:QueryAttributes" />
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<xs:attributeGroup ref="referrer:QueryAttributes" />
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<xs:attributeGroup ref="suggestions:QueryAttributes" />
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<xs:attributeGroup ref="time:QueryAttributes" />
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</xs:complexType>
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<xs:simpleType name="Developer">
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<xs:annotation>
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<xs:documentation>
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Contains the human-readable name or identifier of the creator or maintainer of the description document.
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The developer is the person or entity that created the description document,
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and may or may not be the owner, author, or copyright holder of the source of the content itself.
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</xs:documentation>
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</xs:annotation>
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<xs:restriction base="xs:string">
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<xs:maxLength value="64" />
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</xs:restriction>
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</xs:simpleType>
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<xs:simpleType name="Attribution">
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<xs:annotation>
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<xs:documentation>
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Contains a list of all sources or entities that should be credited for the content contained in the search feed.
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</xs:documentation>
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</xs:annotation>
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<xs:restriction base="xs:string">
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<xs:maxLength value="256" />
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</xs:restriction>
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</xs:simpleType>
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<xs:simpleType name="SyndicationRight">
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<xs:annotation>
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<xs:documentation>
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Contains a value that indicates the degree to which the search results provided by this search engine
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can be queried, displayed, and redistributed.
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</xs:documentation>
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</xs:annotation>
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<xs:restriction base="xs:string">
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<xs:enumeration value="open">
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<xs:annotation>
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<xs:documentation>
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The search client may request search results.
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The search client may display the search results to end users.
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The search client may send the search results to other search clients.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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<xs:enumeration value="limited">
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<xs:annotation>
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<xs:documentation>
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The search client may request search results.
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The search client may display the search results to end users.
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The search client may not send the search results to other search clients.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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<xs:enumeration value="private">
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<xs:annotation>
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<xs:documentation>
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The search client may request search results.
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The search client may not display the search results to end users.
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The search client may not send the search results to other search clients.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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<xs:enumeration value="closed">
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<xs:annotation>
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<xs:documentation>
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The search client may not request search results.
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</xs:documentation>
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</xs:annotation>
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</xs:enumeration>
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</xs:restriction>
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</xs:simpleType>
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<xs:simpleType name="AdultContent">
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<xs:annotation>
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<xs:documentation>
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Contains a boolean value that should be set to true if the search results may contain material intended only for adults.
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As there are no universally applicable guidelines as to what constitutes "adult" content,
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the search engine should make a good faith effort to indicate when there is a possibility
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that search results may contain material inappropriate for all audiences.
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</xs:documentation>
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</xs:annotation>
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<xs:restriction base="xs:string">
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<xs:annotation>
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<xs:documentation>
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The values "false", "FALSE", "0", "no", and "NO" will be considered boolean FALSE;
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all other strings will be considered boolean TRUE.
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</xs:documentation>
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</xs:annotation>
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</xs:restriction>
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</xs:simpleType>
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<xs:simpleType name="Language">
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<xs:annotation>
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<xs:documentation>
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Contains a string that indicates that the search engine supports search results in the specified language.
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An OpenSearch description document should include one Language element for each language that the search engine supports.
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If the search engine also supports queries for any arbitrary language then the OpenSearch description document
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should include a Language element with a value of "*".
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|
The "language" template parameter in the OpenSearch URL template can be used to allow the search client
|
|
to choose among the available languages.
|
|
</xs:documentation>
|
|
</xs:annotation>
|
|
<xs:union>
|
|
<xs:simpleType>
|
|
<xs:restriction base="xs:language" />
|
|
</xs:simpleType>
|
|
<xs:simpleType>
|
|
<xs:restriction base="xs:string">
|
|
<xs:enumeration value="*">
|
|
<xs:annotation>
|
|
<xs:documentation>
|
|
The value of "*" signifies that the search engine does not restrict search results to any particular language.
|
|
</xs:documentation>
|
|
</xs:annotation>
|
|
</xs:enumeration>
|
|
</xs:restriction>
|
|
</xs:simpleType>
|
|
</xs:union>
|
|
</xs:simpleType>
|
|
|
|
<xs:simpleType name="InputEncoding">
|
|
<xs:annotation>
|
|
<xs:documentation>
|
|
Contains a string that indicates that the search engine supports search requests encoded with
|
|
the specified character encoding.
|
|
An OpenSearch description document should include one InputEncoding element for each character encoding
|
|
that can be used to encode search requests. The "inputEncoding" template parameter in the OpenSearch URL
|
|
template can be used to require the search client to identify which encoding is being used to encode
|
|
the current search request.
|
|
</xs:documentation>
|
|
</xs:annotation>
|
|
<xs:restriction base="xs:string" />
|
|
</xs:simpleType>
|
|
|
|
<xs:simpleType name="OutputEncoding">
|
|
<xs:annotation>
|
|
<xs:documentation>
|
|
Contains a string that indicates that the search engine supports search responses encoded with
|
|
the specified character encoding.
|
|
An OpenSearch description document should include one OutputEncoding element for each character encoding
|
|
that can be used to encode search responses. The "outputEncoding" template parameter in the OpenSearch URL
|
|
template can be used to allow the search client to choose a character encoding in the search response.
|
|
</xs:documentation>
|
|
</xs:annotation>
|
|
<xs:restriction base="xs:string" />
|
|
</xs:simpleType>
|
|
|
|
<xs:complexType name="OpenSearchDescription">
|
|
<xs:annotation>
|
|
<xs:documentation>
|
|
The root node of the OpenSearch description document.
|
|
</xs:documentation>
|
|
</xs:annotation>
|
|
<!--
|
|
This is XSD 1.0; it is not possible to have a maxOccurs="unbounded" within xs:all,
|
|
so I use xs:choice instead but it means that any of the min/maxOccurs defined for
|
|
each xs:element will not be actually validated. They are just left here for
|
|
documentation purposes. XSD 1.1 would fix this situation, but is implemented by
|
|
almost nobody. It would be technically possible to use 8! xs:sequence elements
|
|
(8 being the amount of elements that are either present at least or no more than once),
|
|
but that would probably overload many validators.
|
|
-->
|
|
<xs:choice minOccurs="1" maxOccurs="unbounded">
|
|
<xs:element name="ShortName" type="ShortName" minOccurs="1" maxOccurs="1" />
|
|
<xs:element name="Description" type="Description" minOccurs="1" maxOccurs="1" />
|
|
<xs:element name="Contact" type="Contact" minOccurs="0" maxOccurs="1" />
|
|
<xs:element name="Url" type="Url" minOccurs="1" maxOccurs="unbounded" />
|
|
<xs:element name="LongName" type="LongName" minOccurs="0" maxOccurs="1" />
|
|
<xs:element name="Image" type="Image" minOccurs="0" maxOccurs="unbounded" />
|
|
<xs:element name="Query" type="Query" minOccurs="0" maxOccurs="unbounded" />
|
|
<xs:element name="Developer" type="Developer" minOccurs="0" maxOccurs="1" />
|
|
<xs:element name="SyndicationRight" type="SyndicationRight" minOccurs="0" maxOccurs="1" default="open" />
|
|
<xs:element name="AdultContent" type="AdultContent" minOccurs="0" maxOccurs="1" />
|
|
<xs:element name="Language" type="Language" minOccurs="0" maxOccurs="unbounded" default="*" />
|
|
<xs:element name="InputEncoding" type="InputEncoding" minOccurs="0" maxOccurs="unbounded" default="UTF-8" />
|
|
<xs:element name="OutputEncoding" type="OutputEncoding" minOccurs="0" maxOccurs="unbounded" default="UTF-8" />
|
|
</xs:choice>
|
|
</xs:complexType>
|
|
|
|
<xs:element name="OpenSearchDescription" type="OpenSearchDescription" />
|
|
</xs:schema>
|