GermanWikipedia - /page/entry.mu

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<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="de" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="de" dir="ltr"><p><b>XML Base</b> ist eine <a href="World_Wide_Web_Consortium#Empfehlungen" title="World Wide Web Consortium">vom World Wide Web Consortium empfohlene</a> Möglichkeit, Basis-URLs für Teile von XML-Dokumenten zu definieren. Basis-URL bezeichnet dabei diejenige <a href="Uniform_Resource_Locator" title="Uniform Resource Locator">URL</a>, von der aus relative Pfadangaben im Dokument aufgelöst werden. Die XML Base-Empfehlung wurde am 27. Juni 2001 eingeführt.

</p><p>Das <i>xml:base</i>-Attribut kann in XML-Dokumenten an beliebiger Stelle eingefügt werden, um eine andere Basis-URL als die des Dokumentes oder einer externen URI bzw. externen <a href="Entit%C3%A4t_(Informatik)" title="Entität (Informatik)">Entität</a> zu verwenden. Der Wert des Attributes wird als URI-Referenz, wie in RFC 2396<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> definiert, interpretiert, nachdem er wie in Teil 3.1 der Spezifikation verarbeitet wurde.

</p><p>In XML-Prozessoren, die <a href="Namensraum_(XML)" title="Namensraum (XML)">XML-Namensräume</a> berücksichtigen, ist das „xml“-Präfix an die Namespace-Bezeichnung gebunden, wie dort unter <i>Namespaces in XML</i> beschrieben. Trotzdem kann xml:base auch von Prozessoren genutzt werden, die keine Namensräume verarbeiten.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

</p>

<div class="mw-heading mw-heading2"><h2 id="Beispiel">Beispiel</h2></div>

<p>Das folgende XML-Dokument befinde sich am Ort <code>file:///var/www/beispiel.xml</code>

</p>

<div class="mw-highlight mw-highlight-lang-xml mw-content-ltr" dir="ltr"><pre><span></span><span class="nt"><body</span><span class="w"> </span><span class="na">xmlns=</span><span class="s">"http://www.w3.org/1999/xhtml"</span><span class="nt">></span>

<span class="w"> </span><span class="nt"><a</span><span class="w"> </span><span class="na">xml:base=</span><span class="s">"http://de.wikipedia.org"</span><span class="w"> </span><span class="na">href=</span><span class="s">"/wiki/XML_Base"</span><span class="nt">></span>Link<span class="w"> </span>2<span class="nt"></a></span>

<span class="w"> </span><span class="nt"><a</span><span class="w"> </span><span class="na">xml:base=</span><span class="s">"ordner"</span><span class="w"> </span><span class="na">href=</span><span class="s">"test3.xml"</span><span class="nt">></span>Link<span class="w"> </span>4<span class="nt"></a></span>

</pre></div>

<p>Dann werden die Links folgendermaßen aufgelöst:

</p>

<ol><li>Link 1 führt zu <code>file:///wiki/XML_Base</code></li>

<li>Link 2 zu <code>http://de.wikipedia.org/wiki/XML_Base</code></li>

<li>Link 4 zu <code>file:///home/user/ordner/test3.xml</code></li></ol>

<div class="mw-heading mw-heading2"><h2 id="Weblinks">Weblinks</h2></div>

<ul><li><a rel="nofollow" class="external text" href="https://www.w3.org/TR/xmlbase/">XML-Base W3C Empfehlung</a></li></ul>

<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>

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</style><span class="dewiki-iconexternal"><a href="https://datatracker.ietf.org/doc/html/rfc2396" class="extiw external" title="rfc:2396">2396</a></span></i> – <i><span lang="en">Uniform Resource Identifiers (URI): Generic Syntax</span></i>. August 1998 (englisch).</span>

</li>

<li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><span class="cite"><a rel="nofollow" class="external text" href="https://www.w3.org/XML/1998/namespace"><i>The “xml:” Namespace.</i></a> In: <i>w3.org.</i> 26. Oktober 2009,<span class="Abrufdatum"> abgerufen am 14. September 2019</span> (englisch).</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2Fde.wikipedia.org%3AXML+Base&rft.title=The+%E2%80%9Cxml%3A%E2%80%9D+Namespace&rft.description=The+%E2%80%9Cxml%3A%E2%80%9D+Namespace&rft.identifier=https%3A%2F%2Fwww.w3.org%2FXML%2F1998%2Fnamespace&rft.date=2009-10-26&rft.language=en"> </span></span>

</li>

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<div class="klappleiste-kopf">Standards des <a href="World_Wide_Web_Consortium" title="World Wide Web Consortium">World Wide Web Consortiums</a> (W3C)<div class="erweiterte-navigationsleiste-quicklinks" style="float:left; font-weight:normal; font-size:75%; margin-left:1em; margin-right:2em; display:none;"><span title="Vorlage anzeigen">V</span> – <span title="Diskussion anzeigen">D</span></div></div>

<td class="erw-nav-gruppe" style="white-space: nowrap;text-align: right;border: 1px solid transparent;border-top: 1px solid #FFF;border-bottom: 2px solid #FFF;padding: 0 1em;"><b>Empfehlungen</b>

</td>

<p><a href="ActivityPub" title="ActivityPub">ActivityPub</a> | <a href="Accessible_Rich_Internet_Applications" title="Accessible Rich Internet Applications">ARIA</a> | <a href="Canonical_XML" title="Canonical XML">Canonical XML</a> | <a href="Compound_Document_Formats" title="Compound Document Formats">CDF</a> | <a href="Cascading_Style_Sheets" title="Cascading Style Sheets">CSS</a> | <a href="Document_Object_Model" title="Document Object Model">DOM</a> | <a href="W3C_Geolocation_API" title="W3C Geolocation API">Geolocation API</a> | <a href="Hypertext_Markup_Language" title="Hypertext Markup Language">HTML</a> | <a href="HTML5" title="HTML5">HTML5</a> | <a href="InkML" title="InkML">InkML</a> | <a href="Internationalization_Tag_Set" title="Internationalization Tag Set">ITS</a> | <a href="JSON-LD" title="JSON-LD">JSON-LD</a> | <a href="Mathematical_Markup_Language" title="Mathematical Markup Language">MathML</a> | <a href="Web_Ontology_Language" title="Web Ontology Language">OWL</a> | <a href="Platform_for_Privacy_Preferences_Project" title="Platform for Privacy Preferences Project">P3P</a> | PLS | <a href="Portable_Network_Graphics" title="Portable Network Graphics">PNG</a> | <a href="Resource_Description_Framework" title="Resource Description Framework">RDF</a> | <a href="RDF-Schema" title="RDF-Schema">RDF-Schema</a> | <a href="Rule_Interchange_Format" title="Rule Interchange Format">RIF</a> | <a href="SCXML" title="SCXML">SCXML</a> | <a href="Semantic_Interpretation_for_Speech_Recognition" title="Semantic Interpretation for Speech Recognition">SISR</a> | <a href="Simple_Knowledge_Organisation_System" title="Simple Knowledge Organisation System">SKOS</a> | <a href="Synchronized_Multimedia_Integration_Language" title="Synchronized Multimedia Integration Language">SMIL</a> | <a href="SOAP" title="SOAP">SOAP</a> | <a href="Speech_Recognition_Grammar_Specification" title="Speech Recognition Grammar Specification">SRGS</a> | <a href="Speech_Synthesis_Markup_Language" title="Speech Synthesis Markup Language">SSML</a> | <a href="Scalable_Vector_Graphics" title="Scalable Vector Graphics">SVG</a> | <a href="SPARQL" title="SPARQL">SPARQL</a> | <a href="Timed_Text" title="Timed Text">Timed Text</a> | <a href="Turtle_(Syntax)" title="Turtle (Syntax)">Turtle</a> | <a href="VoiceXML" title="VoiceXML">VoiceXML</a> | <a href="Web_Services_Description_Language" title="Web Services Description Language">WSDL</a> | <a href="XForms" title="XForms">XForms</a> | <a href="Extensible_Hypertext_Markup_Language" title="Extensible Hypertext Markup Language">XHTML</a> | <a href="RDFa" title="RDFa">XHTML+RDFa</a> | <a href="XInclude" title="XInclude">XInclude</a> | <a href="XLink_(Syntax)" title="XLink (Syntax)">XLink</a> | <a href="Extensible_Markup_Language" title="Extensible Markup Language">XML</a> | <a class="mw-selflink selflink">XML Base</a> | <a href="XML-Encryption" title="XML-Encryption">XML-Encryption</a> | <a href="XML_Events" title="XML Events">XML Events</a> | <a href="XML_Information_Set" title="XML Information Set">XML Information Set</a> | <a href="Namensraum_(XML)" title="Namensraum (XML)">XML Namespace</a> | <a href="XML_Schema" title="XML Schema">XML Schema</a> | <a href="XML_Signature" title="XML Signature">XML Signature</a> | <a href="XPath" title="XPath">XPath</a> | <a href="XPointer" title="XPointer">XPointer</a> | <a href="XProc" title="XProc">XProc</a> | <a href="XQuery" title="XQuery">XQuery</a> | <a href="Extensible_Stylesheet_Language" title="Extensible Stylesheet Language">XSL</a> | <a href="Extensible_Stylesheet_Language_%E2%80%93_Formatting_Objects" title="Extensible Stylesheet Language – Formatting Objects">XSL-FO</a> | <a href="XSL_Transformation" title="XSL Transformation">XSLT</a> <small>(Elemente)</small>

</p>

</td>

</td></tr>

<tr>

<td class="erw-nav-gruppe" style="white-space: nowrap;text-align: right;border: 1px solid transparent;border-top: 1px solid #FFF;border-bottom: 2px solid #FFF;padding: 0 1em;"><b>Arbeitsentwürfe<br>und Kandidaten</b>

</td>

<p><a href="CCXML" title="CCXML">CCXML</a> | <a href="CURIE" title="CURIE">CURIE</a> | <a href="SMIL_Timesheets" title="SMIL Timesheets">SMIL Timesheets</a> | <a href="SXBL" title="SXBL">sXBL</a> | WICD | <a href="XFrames" title="XFrames">XFrames</a> | <a href="XML_Binding_Language" title="XML Binding Language">XBL</a> | XHTML+MathML+SVG | <a href="XMLHttpRequest" title="XMLHttpRequest">XMLHttpRequest</a>

</p>

</td></tr>

<tr>

<td class="erw-nav-gruppe" style="white-space: nowrap;text-align: right;border: 1px solid transparent;border-top: 1px solid #FFF;border-bottom: 2px solid #FFF;padding: 0 1em;"><b>Anmerkungen</b>

</td>

<p><a href="XAdES" title="XAdES">XAdES</a> | <a href="Extensible_Forms_Description_Language" title="Extensible Forms Description Language">XFDL</a> | <a href="XHTML%2BSMIL" title="XHTML+SMIL">XHTML+SMIL</a> | <a href="Extensible_User_Interface_Protocol" title="Extensible User Interface Protocol">XUP</a>

</p>

</td></tr>

<tr>

<td class="erw-nav-gruppe" style="white-space: nowrap;text-align: right;border: 1px solid transparent;border-top: 1px solid #FFF;border-bottom: 2px solid #FFF;padding: 0 1em;"><b>Richtlinien</b>

</td>

<p><a href="Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines">Web Content Accessibility Guidelines</a> | Multimodal Interaction Activity | <a href="W3C_Markup_Validation_Service" title="W3C Markup Validation Service">Markup Validation Service</a>

</p>

</td></tr>

<tr>

<td class="erw-nav-gruppe" style="white-space: nowrap;text-align: right;border: 1px solid transparent;border-top: 1px solid #FFF;border-bottom: 2px solid #FFF;padding: 0 1em;"><b>Initiativen</b>

</td>

<p><a href="Web_Accessibility_Initiative" title="Web Accessibility Initiative">Web Accessibility Initiative</a>

</p>

</td></tr>

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Dieser Artikel wurde von <a class="external text" title="Zuletzt bearbeitet am 2025-11-29" href="https://de.wikipedia.org/wiki/?title=XML_Base&oldid=261967685">Wikipedia</a> herausgegeben. Der Text ist unter <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.de">Creative Commons Attribution-Share Alike 4.0</a> verfügbar, sofern nicht anders angegeben. Für die Mediendateien können zusätzliche Bedingungen gelten.

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