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https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@146503 c90b9560-bf6c-de11-be94-00142212c4b1
76 lines
2.6 KiB
XML
76 lines
2.6 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.7 $ -->
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<!-- splitted from ./en/functions/yaz.xml, last change in rev 1.1 -->
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<refentry id="function.yaz-ccl-parse">
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<refnamediv>
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<refname>yaz_ccl_parse</refname>
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<refpurpose>Invoke CCL Parser</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>bool</type><methodname>yaz_ccl_parse</methodname>
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<methodparam><type>resource</type><parameter>id</parameter></methodparam>
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<methodparam><type>string</type><parameter>query</parameter></methodparam>
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<methodparam><type>array &</type><parameter>result</parameter></methodparam>
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</methodsynopsis>
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<para>
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This function invokes a CCL parser. It converts a given
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CCL FIND query to an RPN query which may be passed to the
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<function>yaz_search</function> function to perform a search.
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To define a set of valid CCL fields call
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<function>yaz_ccl_conf</function> prior to this function.
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If the supplied <parameter>query</parameter> was successfully
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converted to RPN, this function returns &true;, and the index
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<literal>rpn</literal> of the supplied array
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<parameter>result</parameter> holds a valid RPN query.
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If the query could not be converted (because of invalid syntax,
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unknown field, etc.) this function returns &false; and three
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indexes are set in the resulting array to indicate the cause
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of failure: <literal>errorcode</literal> CCL error code (integer),
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<literal>errorstring</literal> CCL error string, and
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<literal>errorpos</literal> approximate position in query of failure
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(integer is character position).
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</para>
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<example>
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<title>CCL Parsing</title>
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<para>We will try to search using CCL. In the example below,
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<literal>$ccl</literal> is a CCL query.
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</para>
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<programlisting role="php">
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<![CDATA[
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<?php
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yaz_ccl_conf($id, $fields); // see example for yaz_ccl_conf
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if (!yaz_ccl_parse($id, $ccl, &$cclresult)) {
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echo 'Error: ' . $cclresult["errorstring"];
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} else {
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$rpn = $cclresult["rpn"];
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yaz_search($id, "rpn", $rpn);
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}
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?>
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]]>
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</programlisting>
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</example>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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