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<?xml version='1.0' encoding='utf-8'?>
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<!DOCTYPE section [
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<!ENTITY % myent SYSTEM "../entities.ent">
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%myent;
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]>
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<section xmlns="http://docbook.org/ns/docbook" version="5.0"
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<title>selectXPath</title>
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<para>Selects xmlfragements, nodes, attribute or text from xml data using an XPath expression.
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This function requires namespaces to be declared correctly.</para>
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<para>
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Sample request:
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<programlisting language="xml"><![CDATA[
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<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
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xmlns:ws="http://ws.xservices.brutex.net">
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<soapenv:Header/>
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<soapenv:Body>
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<ws:selectXPath>
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<sourcexml>
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<![CDATA[<notes xmlns="http://demo.brutex.net" xmlns:bx="http://bx.brutex.net">
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<bx:note>
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<to>Lena</to>
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<from>Jani</from>
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<heading>Reminder ABC</heading>
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<body>Don't forget me this weekend!</body>
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</bx:note>
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<note>
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<to>John</to>
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<from>Lena</from>
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<heading>Call Mr. ABC</heading>
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<body>Please call back</body>
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</note>
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<bx:note>
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<to>Brian</to>
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<from>JJohn</from>
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<heading>Reminder XServices</heading>
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<body>How to use selectXPath?</body>
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</bx:note>
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</notes>
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]]]]><![CDATA[>
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</sourcexml>
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<encoding>utf-8</encoding>
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<namespaceList>
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<namespace>
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<prefix>ns</prefix>
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<uri>http://demo.brutex.net</uri>
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</namespace>
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<namespace>
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<prefix>bx</prefix>
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<uri>http://bx.brutex.net</uri>
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</namespace>
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</namespaceList>
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<xpath>*/bx:note/ns:heading/text()</xpath>
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</ws:selectXPath>
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</soapenv:Body>
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</soapenv:Envelope>
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]]></programlisting>
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Sample response:
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<programlisting language="xml"><![CDATA[
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<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
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<soap:Body>
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<ns2:selectXPathResponse xmlns:ns2="http://ws.xservices.brutex.net">
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<return>
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<stringlist>Reminder ABC</stringlist>
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<stringlist>Reminder XServices</stringlist>
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<size>2</size>
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</return>
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</ns2:selectXPathResponse>
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</soap:Body>
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</soap:Envelope>
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]]></programlisting>
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</para>
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</section>
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