File: xml_uri_merge.xml

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<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
 -  
 -  This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
 -  project.
 -  
 -  Copyright (C) 1998-2006 OpenLink Software
 -  
 -  This project is free software; you can redistribute it and/or modify it
 -  under the terms of the GNU General Public License as published by the
 -  Free Software Foundation; only version 2 of the License, dated June 1991.
 -  
 -  This program is distributed in the hope that it will be useful, but
 -  WITHOUT ANY WARRANTY; without even the implied warranty of
 -  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 -  General Public License for more details.
 -  
 -  You should have received a copy of the GNU General Public License along
 -  with this program; if not, write to the Free Software Foundation, Inc.,
 -  51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 -  
 -  
-->
<refentry id="fn_xml_uri_merge">
  <refmeta>
    <refentrytitle>xml_uri_merge</refentrytitle>
    <refmiscinfo>xml</refmiscinfo>
  </refmeta>
  <refnamediv>
    <refname>xml_uri_merge</refname>
    <refpurpose>Resolve a relative URI in the context of a base URI</refpurpose>
  </refnamediv>
  <refsynopsisdiv>
    <funcsynopsis id="fsyn_xml_uri_merge">
      <funcprototype id="fsyn_xml_uri_merge">
        <funcdef>varchar <function>DB.DBA.xml_uri_merge</function></funcdef>
        <paramdef>in <parameter>base</parameter> varchar</paramdef>
        <paramdef>in <parameter>ref</parameter> varchar</paramdef>
      </funcprototype>
    </funcsynopsis>
  </refsynopsisdiv>
  <refsect1 id="desc_xml_uri_merge"><title>Description</title>
			<para>
This interprets a possibly relative URI in the context of an absolute base URI and returns the resulting URI.
</para>
			<para>
The supported protocol identifiers are http: file: and virt:.  The virt: allows
referencing data stored in local Virtuoso tables without passing through HTTP.   See
'Entity References in Stored XML' for details.
</para>
			<para>
The effective URI will be the reference if the URI of the reference is absolute.  Otherwise it will
be the base URI modified by the relative reference.
</para>
  </refsect1>
  <refsect1 id="params_xml_uri_merge">
    <title>Parameters</title>
    <refsect2>
      <title>base</title>
      <para><type>VARCHAR</type>, the location of the resources to be found.</para>
    </refsect2>
    <refsect2>
      <title>ref</title>
      <para>The reference name of the resource, relative to the base.</para>
    </refsect2>
  </refsect1>
  <refsect1 id="ret_xml_uri_merge"><title>Return Types</title><para></para></refsect1>
  <refsect1 id="errors_xml_uri_merge"><title>Errors</title>
<!--    <table><title>Errors signalled by </title>
      <tgroup cols="4">
      <thead>
	<row>
          <entry>SQL State</entry>
          <entry>Error Code</entry>
          <entry>Error Text</entry>
          <entry>Description</entry>
        </row>
      </thead>
	<tbody>
	  <row>
	    <entry><errorcode></errorcode></entry>
	    <entry><errorcode></errorcode></entry>
	    <entry><errorname></errorname></entry>
	    <entry></entry>
	  </row>
	</tbody>
      </tgroup>
    </table> -->
  </refsect1>
  <refsect1 id="examples_xml_uri_merge"><title>Examples</title>
    <example id="ex_xml_uri_merge"><title></title>
      <para></para>
      <screen></screen>
    </example>
  </refsect1>
  <refsect1 id="seealso"><title>See Also</title>
    <para><link linkend="fn_xml_uri_get">xml_uri_get</link></para>
  </refsect1>
</refentry>