Add retrieval example - MARCXML backend
[yaz-moved-to-github.git] / doc / tools.xml
index 2544316..d19faf9 100644 (file)
 
          <row><entry><literal>s=ag</literal></entry><entry>
            Tokens that appears as phrases (with blank in them) gets
-           structure phrase attached. Tokens that appers as words
-           gets structure phrase attached. Phrases and words are
+           structure phrase attached (4=1). Tokens that appear to be words
+           gets structure word attached (4=2). Phrases and words are
            ANDed. This is a variant of s=al and s=pw, with the main
            difference that words are not split (with operator AND)
            but instead kept in one RPN token. This facility appeared
          <entry><literal>?</literal></entry>
         </row>
         <row>
+         <entry>mask</entry>
+         <entry>Masking character. Requires YAZ 4.2.58 or later</entry>
+         <entry><literal>#</literal></entry>
+        </row>
+        <row>
          <entry>field</entry>
          <entry>Specifies how multiple fields are to be
           combined. There are two modes: <literal>or</literal>:
@@ -2445,6 +2450,56 @@ int cql_transform_rpn2cql_wrbuf(cql_transform_t ct,
       </itemizedlist>
      </para>
     </example>
+
+    <example id="tools.retrieval.marcxml">
+     <title>MARCXML backend</title>
+     <para>
+      SRW/SRU and Solr backends returns records in XML.
+      If they return MARCXML or MarcXchange, the retrieval module
+      can convert those into ISO2709 formats, most commonly USMARC
+      (AKA MARC21).
+      In this example, the backend returns MARCXML for schema="marcxml".
+     </para>
+     <programlisting><![CDATA[
+     <retrievalinfo>
+       <retrieval syntax="usmarc">
+         <backend syntax="xml" name="marcxml">
+          <marc inputformat="xml" outputformat="marc"
+                outputcharset="marc-8"/>
+        </backend>
+       </retrieval>
+       <retrieval syntax="xml" name="marcxml"
+                 identifier="info:srw/schema/1/marcxml-v1.1"/>
+       <retrieval syntax="xml" name="dc">
+         <backend syntax="xml" name="marcxml">
+           <xslt stylesheet="MARC21slim2DC.xsl"/>
+        </backend>
+       </retrieval>
+     </retrievalinfo>
+]]>
+     </programlisting>
+     <para>
+      This means that our frontend supports:
+      <itemizedlist>
+       <listitem>
+        <para>
+         MARC21 records (any element set name) in MARC-8 encoding.
+        </para>
+       </listitem>
+       <listitem>
+        <para>
+         MARCXML records for element-set=marcxml
+        </para>
+       </listitem>
+       <listitem>
+        <para>
+         Dublin core records for element-set=dc.
+        </para>
+       </listitem>
+      </itemizedlist>
+     </para>
+    </example>
+
    </sect2>
    <sect2 id="tools.retrieval.api">
     <title>API</title>