dim             Tue May  8 05:44:16 2001 EDT

  Modified files:              
    /phpdoc/en/functions        mnogosearch.xml 
  Log:
  New UDM_FIELD_CATEGORY parameter in udm_get_res_field. New udm_cat_path and
  udm_cat_list functions.
  
  
Index: phpdoc/en/functions/mnogosearch.xml
diff -u phpdoc/en/functions/mnogosearch.xml:1.12 
phpdoc/en/functions/mnogosearch.xml:1.13
--- phpdoc/en/functions/mnogosearch.xml:1.12    Sun Mar  4 14:28:01 2001
+++ phpdoc/en/functions/mnogosearch.xml Tue May  8 05:44:16 2001
@@ -1,8 +1,8 @@
 <reference id="ref.mnogo">
-  <title>mnoGoSearch Functions</title>
-  <titleabbrev>mnoGoSearch</titleabbrev>
-  <partintro>
-   <simpara>
+       <title>mnoGoSearch Functions</title>
+       <titleabbrev>mnoGoSearch</titleabbrev>
+       <partintro>
+               <simpara>
     These functions allow you to access mnoGoSearch (former
     UdmSearch) free search engine.  In order to have these
     functions available, you must compile php with mnogosearch
@@ -13,7 +13,7 @@
     mnogosearch at other path you should specify it: 
     <option role="configure">--with-mnogosearch=DIR</option>.
    </simpara>
-   <para>
+               <para>
    mnoGoSearch is a full-featured search engine software for intranet and internet 
servers, 
    distributed under the GNU license. mnoGoSearch has number of unique features, 
which makes 
    it appropriate for a wide range of application from search within your site to a 
specialized 
@@ -26,8 +26,8 @@
    used later in a search process. The search is performed via Web interface. C CGI, 
PHP and Perl 
    search front ends are included.
    </para>
-   <note>
-    <para>
+               <note>
+                       <para>
      php contains built-in mysql access library, which can be used to
      access mysql. It is known that mnoGoSearch is not compatible with
      this built-in library and can work only with generic mysql
@@ -35,71 +35,74 @@
      configuration you have to indicate directory of mysql
      installation, that was used during mnoGoSearch configuration, i.e. for example: 
      <option role="configure">--with-mnogosearch --with-mysql=/usr</option>
-    </para>
-   </note>
-   <simpara>
+                       </para>
+               </note>
+               <simpara>
     You need at least 3.1.10 version of mnoGoSearch installed to use
     these functions.
    </simpara>
-   <simpara>
+               <simpara>
     More information about mnoGoSearch can be found at <ulink 
url="&url.mnogo;">&url.mnogo;</ulink>.
    </simpara>
-  </partintro>
-
- <refentry id="function.udm-add-search-limit">
-   <refnamediv>
-    <refname>udm_add_search_limit</refname>
-    <refpurpose>Add various search limits</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>int <function>udm_add_search_limit</function></funcdef>
-      <paramdef>int <parameter>agent</parameter></paramdef>
-      <paramdef>int <parameter>var</parameter></paramdef>
-      <paramdef>string <parameter>val</parameter></paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_add_search_limit</function> returns <literal>TRUE</literal> on
+       </partintro>
+       <refentry id="function.udm-add-search-limit">
+               <refnamediv>
+                       <refname>udm_add_search_limit</refname>
+                       <refpurpose>Add various search limits</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>int 
+<function>udm_add_search_limit</function>
+                                       </funcdef>
+                                       <paramdef>int <parameter>agent</parameter>
+                                       </paramdef>
+                                       <paramdef>int <parameter>var</parameter>
+                                       </paramdef>
+                                       <paramdef>string <parameter>val</parameter>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_add_search_limit</function> returns 
+<literal>TRUE</literal> on
      success, <literal>FALSE</literal> on error. Adds search restrictions.
     </para>
-    <para>
-     <parameter>agent</parameter> - a link to Agent,
+                       <para>
+                               <parameter>agent</parameter> - a link to Agent,
      received after call to <function>udm_alloc_agent</function>.
      </para>
-     <para>
-     <parameter>var</parameter> - defines parameter, indicating limit.
+                       <para>
+                               <parameter>var</parameter> - defines parameter, 
+indicating limit.
      </para>
-     <para>
-     <parameter>val</parameter> - defines value of the current parameter.
+                       <para>
+                               <parameter>val</parameter> - defines value of the 
+current parameter.
      </para>
-     <para>
+                       <para>
      Possible <parameter>var</parameter> values:
      </para>
-     <itemizedlist>
-      <listitem>
-      <simpara>
+                       <itemizedlist>
+                               <listitem>
+                                       <simpara>
       UDM_LIMIT_URL - defines document URL limitations to limit search through 
subsection
          of database. It supports SQL % and _  LIKE wildcards, where % matches any 
number of characters, even zero characters,
          and _ matches exactly one character. E.g. http://my.domain.__/catalog may 
stand for http://my.domain.ru/catalog and http://my.domain.ua/catalog.
       </simpara>
-     </listitem> 
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
      UDM_LIMIT_TAG - defines site TAG limitations. In indexer-conf you can assign 
specific TAGs to various sites and parts of a site. 
      Tags in mnoGoSearch 3.1.x are lines, that may contain metasymbols % and _. 
Metasymbols allow searching among groups of tags.
      E.g. there are links with tags ABCD and ABCE, and search restriction is by ABC_ 
- the search will be made among both of the tags.
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
       UDM_LIMIT_LANG - defines document language limitations.
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
       UDM_LIMIT_CAT - defines document category limitations. Categories are similar 
to tag feature, but nested. So you can have
       one category inside another and so on. You have to use two characters
          for each level. Use a hex number going from 0-F or a 36 base number going 
from 0-Z.   
@@ -113,202 +116,320 @@
          01, making it 010201. If you want to search for sites under that category 
then you pass it
          cat=010201 in the url.
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
       UDM_LIMIT_DATE - defines limitation by date document was modified. 
       </simpara>
-      <simpara>
+                                       <simpara>
       Format of parameter value: a string with first character &lt; or &gt;, then 
with no space - date in unixtime format, for example:
       </simpara>
-      <simpara>
+                                       <simpara>
       Udm_Add_Search_Limit($udm,UDM_LIMIT_DATE,"&lt;908012006");
       </simpara>
-      <simpara>
+                                       <simpara>
       If &gt; character is used, then search will be restricted to those documents 
having modification date greater than entered.
       If &lt;, then smaller.
       </simpara>
-     </listitem>
-    </itemizedlist>
-   </refsect1>
-  </refentry>
-
-  <refentry id="function.udm-alloc-agent">
-   <refnamediv>
-    <refname>udm_alloc_agent</refname>
-    <refpurpose>Allocate mnoGoSearch session</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>int <function>udm_alloc_agent</function></funcdef>
-      <paramdef>string <parameter>dbaddr</parameter></paramdef>
-      <paramdef>string
+                               </listitem>
+                       </itemizedlist>
+               </refsect1>
+       </refentry>
+       <refentry id="function.udm-alloc-agent">
+               <refnamediv>
+                       <refname>udm_alloc_agent</refname>
+                       <refpurpose>Allocate mnoGoSearch session</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>int 
+<function>udm_alloc_agent</function>
+                                       </funcdef>
+                                       <paramdef>string <parameter>dbaddr</parameter>
+                                       </paramdef>
+                                       <paramdef>string
        <parameter>
-        <optional>dbmode</optional>
-       </parameter>
-      </paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_alloc_agent</function> returns mnogosearch agent
+                                                       <optional>dbmode</optional>
+                                               </parameter>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_alloc_agent</function> returns 
+mnogosearch agent
      identifier on success, <literal>FALSE</literal> on error. This function creates a
      session with database parameters.
     </para>
-    <para>
-     <parameter>dbaddr</parameter> - URL-style database description. Options (type, 
host, database name, port, user and password) to connect to SQL database.
+                       <para>
+                               <parameter>dbaddr</parameter> - URL-style database 
+description. Options (type, host, database name, port, user and password) to connect 
+to SQL database.
      Do not matter for built-in text files support. Format: DBAddr 
DBType:[//[DBUser[:DBPass]@]DBHost[:DBPort]]/DBName/
      Currently supported DBType values are: mysql, pgsql, msql, solid, mssql, oracle, 
ibase. Actually, it does not matter for native libraries support.
      But ODBC users should specify one of supported values. If your database type is 
not supported, you may use "unknown" instead.
     </para>
-    <para>
-     <parameter>dbmode</parameter> - You may select SQL database mode of words 
storage. When "single" is specified, all words are stored in the same
+                       <para>
+                               <parameter>dbmode</parameter> - You may select SQL 
+database mode of words storage. When "single" is specified, all words are stored in 
+the same
      table. If "multi" is selected, words will be located in different tables 
depending of their lengths. "multi" mode is usually faster
      but requires more tables in database. If "crc" mode is selected, mnoGoSearch 
will store 32 bit integer
      word IDs calculated by CRC32 algorythm instead of words. This mode requres less 
disk space and it is faster comparing with "single"
      and "multi" modes. "crc-multi" uses the same storage structure with the "crc" 
mode, but also stores words in different tables depending on 
      words lengths like "multi" mode. Format: DBMode single/multi/crc/crc-multi
     </para>
-    <note>
-     <para>
-     <parameter>dbaddr</parameter> and <parameter>dbmode</parameter> must match those 
used during indexing.
+                       <note>
+                               <para>
+                                       <parameter>dbaddr</parameter> and 
+<parameter>dbmode</parameter> must match those used during indexing.
      </para>
-    </note>
-    <note>
-     <para>
+                       </note>
+                       <note>
+                               <para>
       In fact this function does not open connection to database and
       thus does not check entered login and password. Actual connection to database 
and login/password verification is done by <function>udm_find</function>.
      </para>
-    </note>
-   </refsect1>
-  </refentry>
-
-  <refentry id="function.udm-api-version">
-   <refnamediv>
-    <refname>udm_api_version</refname>
-    <refpurpose>Get mnoGoSearch API version.</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>int <function>udm_api_version</function></funcdef>
-      <paramdef><parameter></parameter></paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_api_version</function> returns mnoGoSearch API version number. 
E.g. if 
+                       </note>
+               </refsect1>
+       </refentry>
+       <refentry id="function.udm-api-version">
+               <refnamediv>
+                       <refname>udm_api_version</refname>
+                       <refpurpose>Get mnoGoSearch API version.</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>int 
+<function>udm_api_version</function>
+                                       </funcdef>
+                                       <paramdef>
+                                               <parameter/>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_api_version</function> returns 
+mnoGoSearch API version number. E.g. if 
      mnoGoSearch 3.1.10 API is used, this function will return 
<literal>30110</literal>.
     </para>
-    <para>
+                       <para>
     This function allows user to identify which API functions are available, e.g. 
     <function>udm_get_doc_count</function> function is only available in mnoGoSearch 
3.1.11 or later. 
     </para>
-    <simpara>Example:</simpara>
-    <informalexample>
-    <programlisting role="C">
+                       <simpara>Example:</simpara>
+                       <informalexample>
+                               <programlisting role="C">
           if (Udm_Api_Version() &gt;= 30111) {
           print  "Total number of urls in database: 
".Udm_Get_Doc_Count($udm)."&lt;br&gt;\n";
        }
 
        </programlisting>
-       </informalexample>
-   </refsect1>
-  </refentry>
-
-  <refentry id="function.udm-clear-search-limits">
-   <refnamediv>
-    <refname>udm_clear_search_limits</refname>
-    <refpurpose>Clear all mnoGoSearch search restrictions</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>int <function>udm_clear_search_limits</function></funcdef>
-      <paramdef>int <parameter>agent</parameter></paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_clear_search_limits</function> resets defined search limitations 
and returns <literal>TRUE</literal>.
-    </para>
-   </refsect1>
-  </refentry>
-
- <refentry id="function.udm-errno">
+                       </informalexample>
+               </refsect1>
+       </refentry>
+       
+<refentry id="function.udm-cat-path">
    <refnamediv>
-    <refname>udm_errno</refname>
-    <refpurpose>Get mnoGoSearch error number</refpurpose>
+    <refname>udm_cat_path</refname>
+    <refpurpose>Get the path to the current category.</refpurpose>
    </refnamediv>
    <refsect1>
     <title>Description</title>
     <funcsynopsis>
      <funcprototype>
-      <funcdef>int <function>udm_errno</function></funcdef>
+      <funcdef>array <function>udm_cat_path</function></funcdef>
       <paramdef>int <parameter>agent</parameter></paramdef>
-     </funcprototype>
+      <paramdef>string <parameter>category</parameter></paramdef>
+      </funcprototype>
     </funcsynopsis>
     <para>
-     <function>udm_errno</function> returns mnoGoSearch error number,
-     zero if no error.
+     <function>udm_cat_path</function> returns array describing path in the 
+categories tree from the tree root to the current category.
     </para>
     <para>
-     <parameter>agent</parameter> - link to agent identifier, received
-     after call to <function>udm_alloc_agent</function>.
+     <parameter>agent</parameter> - agent link identifier.
     </para>
     <para>
-     Receiving numeric agent error code.
+     <parameter>category</parameter> - current category - the one to get path to.
     </para>
+ <para>
+Returns array with the following format: 
+</para>
+<para>
+The array consists of pairs. Elements with even index numbers contain category paths, 
+odd elements contain corresponding category names.
+</para>
+<para>For example, the call <literal>$array=udm_cat_path($agent, '02031D');</literal> 
+may return the following array:</para>
+<literallayout>
+ $array[0] will contain ''
+ $array[1] will contain 'Root'
+ $array[2] will contain '02'
+ $array[3] will contain 'Sport'
+ $array[4] will contain '0203'
+ $array[5] will contain 'Auto'
+ $array[4] will contain '02031D'
+ $array[5] will contain 'Ferrari'
+</literallayout>
+<example>
+<title>Specifying path to the current category in the following format: '&gt; Root 
+&gt; Sport &gt; Auto &gt; Ferrari'</title>
+<programlisting role="php">
+&lt;?php
+  $cat_path_arr=Udm_Cat_Path($udm_agent,$cat);
+  $cat_path='';
+  for ($i=0; $i&lt;count($cat_path_arr); $i+=2) {
+  $path=$cat_path_arr[$i];
+  $name=$cat_path_arr[$i+1];
+  $cat_path .= " &gt; &lt;a href=\"$PHP_SELF?cat=$path\"&gt;$name&lt;/a&gt; ";
+  }
+&gt;
+</programlisting>
+</example>
    </refsect1>
   </refentry>
 
-  <refentry id="function.udm-error">
-   <refnamediv>
-    <refname>udm_error</refname>
-    <refpurpose>Get mnoGoSearch error message</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
+<refentry id="function.udm-cat-list">
+<refnamediv>
+    <refname>udm_cat_list</refname>
+    <refpurpose>Get all the categories on the same level with the current 
+one.</refpurpose>
+</refnamediv>
+<refsect1>
+       <title>Description</title>
+       <funcsynopsis>
+       <funcprototype>
+       <funcdef>array <function>udm_cat_list</function></funcdef>
+       <paramdef>int <parameter>agent</parameter></paramdef>
+       <paramdef>string <parameter>category</parameter></paramdef>
+       </funcprototype>
+       </funcsynopsis>
+                       
+       <para>                  
+       <function>udm_cat_list</function> returns array listing all categories of the 
+same level as current category in the categories tree.
+        </para>
+       <para>The function can be useful for developing categories tree browser.</para>
+       <para>Returns array with the following format:</para>
+       <para>The array consists of pairs. Elements with even index numbers contain 
+category paths, odd elements contain corresponding category names.</para>
+<literallayout>
+  $array[0] will contain '020300'
+  $array[1] will contain 'Audo'
+  $array[2] will contain '020301'
+  $array[3] will contain 'BMW'
+  $array[4] will contain '020302'
+  $array[5] will contain 'Opel'
+  ...
+ etc.                  
+</literallayout>
+<literallayout>
+Following is an example of displaying links of the current level in format:
+  Audi
+  BMW
+  Opel
+  ...
+</literallayout>
+<informalexample>
+<programlisting role="php">
+&lt;?php
+  $cat_list_arr=Udm_Cat_List($udm_agent,$cat);
+  $cat_list='';
+  for ($i=0; $i&lt;count($cat_list_arr); $i+=2) {
+  $path=$cat_list_arr[$i];
+  $name=$cat_list_arr[$i+1];
+  $cat_list .= "&lt;a href=\"$PHP_SELF?cat=$path\"&gt;$name&lt;/a&gt;&lt;br&gt;";
+  }
+&gt;
+</programlisting>
+</informalexample>             
+
+</refsect1>    
+</refentry>
+
+       
+<refentry id="function.udm-clear-search-limits">
+<refnamediv>
+       <refname>udm_clear_search_limits</refname>
+       <refpurpose>Clear all mnoGoSearch search restrictions</refpurpose>
+</refnamediv>
+<refsect1>
+       <title>Description</title>
+       <funcsynopsis>
+       <funcprototype>
+       <funcdef>int <function>udm_clear_search_limits</function>
+       </funcdef>
+       <paramdef>int <parameter>agent</parameter>
+       </paramdef>
+       </funcprototype>
+       </funcsynopsis>
+       <para>
+       <function>udm_clear_search_limits</function> resets defined search limitations 
+and returns <literal>TRUE</literal>.</para>
+</refsect1>
+</refentry>
+
+<refentry id="function.udm-errno">             
+<refnamediv>                   
+<refname>udm_errno</refname>                   
+<refpurpose>Get mnoGoSearch error number</refpurpose>
+</refnamediv>
+       
+<refsect1>                     
+<title>Description</title>
     <funcsynopsis>
-     <funcprototype>
-      <funcdef>string <function>udm_error</function></funcdef>
-      <paramdef>int <parameter>agent</parameter></paramdef>
-     </funcprototype>
+       <funcprototype>
+               <funcdef>int <function>udm_errno</function></funcdef>
+               <paramdef>int <parameter>agent</parameter></paramdef>
+       </funcprototype>
     </funcsynopsis>
-    <para>
-     <function>udm_error</function> returns mnoGoSearch error message,
+<para><function>udm_errno</function> returns mnoGoSearch error number, zero if no 
+error.</para>
+                       <para>
+                               <parameter>agent</parameter> - link to agent 
+identifier, received
+     after call to <function>udm_alloc_agent</function>.
+    </para>
+                       <para>
+     Receiving numeric agent error code.
+    </para>
+               </refsect1>
+       </refentry>
+       <refentry id="function.udm-error">
+               <refnamediv>
+                       <refname>udm_error</refname>
+                       <refpurpose>Get mnoGoSearch error message</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>string <function>udm_error</function>
+                                       </funcdef>
+                                       <paramdef>int <parameter>agent</parameter>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_error</function> returns mnoGoSearch 
+error message,
      empty string if no error.
     </para>
-    <para>
-     <parameter>agent</parameter> - link to agent identifier, received
+                       <para>
+                               <parameter>agent</parameter> - link to agent 
+identifier, received
      after call to <function>udm_alloc_agent</function>.
     </para>
-    <para>
+                       <para>
      Receiving agent error message.
     </para>
-   </refsect1>
-  </refentry>
- 
-  <refentry id="function.udm-find">
-   <refnamediv>
-    <refname>udm_find</refname>
-    <refpurpose>Perform search</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>int <function>udm_find</function></funcdef>
-      <paramdef>int <parameter>agent</parameter></paramdef>
-      <paramdef>string <parameter>query</parameter></paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_find</function> returns result link identifier on success,
+               </refsect1>
+       </refentry>
+       <refentry id="function.udm-find">
+               <refnamediv>
+                       <refname>udm_find</refname>
+                       <refpurpose>Perform search</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>int <function>udm_find</function>
+                                       </funcdef>
+                                       <paramdef>int <parameter>agent</parameter>
+                                       </paramdef>
+                                       <paramdef>string <parameter>query</parameter>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_find</function> returns result link 
+identifier on success,
       <literal>FALSE</literal> on error.
     </para>
-    <para>
+                       <para>
      The search itself. The first argument - session, the next one -
      query itself.  To find something just type words you want to find
      and press SUBMIT button.  For example, "mysql odbc". You should
@@ -323,360 +444,378 @@
      language.  You should select "bool" match mode in the search
      from.
     </para>
-    <simpara>
+                       <simpara>
      mnoGoSearch understands the following boolean operators:
     </simpara>
-    <simpara>
+                       <simpara>
      &amp; - logical AND. For example, &quot;mysql &amp;
      odbc&quot;. mnoGoSearch will find any URLs that contain both
      &quot;mysql&quot; and &quot;odbc&quot;.
     </simpara>
-    <simpara>
+                       <simpara>
      | - logical OR. For example &quot;mysql|odbc&quot;. mnoGoSearch
      will find any URLs, that contain word &quot;mysql&quot; or word
      &quot;odbc&quot;.
     </simpara>
-    <simpara>
+                       <simpara>
      ~ - logical NOT. For example &quot;mysql &amp; ~odbc&quot;.
      mnoGoSearch will find URLs that contain word &quot;mysql&quot;
      and do not contain word &quot;odbc&quot; at the same time. Note
      that ~ just excludes given word from results.  Query
      &quot;~odbc&quot; will find nothing!
     </simpara>
-    <simpara>
+                       <simpara>
      () - group command to compose more complex queries.  For example
      &quot;(mysql | msql) &amp; ~postgres&quot;.  Query language is
      simple and powerful at the same time. Just consider query as
      usual boolean expression.
     </simpara>
-   </refsect1>
-  </refentry>
-
-  <refentry id="function.udm-free-agent">
-   <refnamediv>
-    <refname>udm_free_agent</refname>
-    <refpurpose>Free mnoGoSearch session</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>int <function>udm_free_agent</function></funcdef>
-      <paramdef>int <parameter>agent</parameter></paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_free_agent</function> returns <literal>TRUE</literal> on success, 
<literal>FALSE</literal> on error.
+               </refsect1>
+       </refentry>
+       <refentry id="function.udm-free-agent">
+               <refnamediv>
+                       <refname>udm_free_agent</refname>
+                       <refpurpose>Free mnoGoSearch session</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>int 
+<function>udm_free_agent</function>
+                                       </funcdef>
+                                       <paramdef>int <parameter>agent</parameter>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_free_agent</function> returns 
+<literal>TRUE</literal> on success, <literal>FALSE</literal> on error.
     </para>
-    <para>
-     <parameter>agent</parameter> - link to agent identifier, received
+                       <para>
+                               <parameter>agent</parameter> - link to agent 
+identifier, received
      after call to <function>udm_alloc_agent</function>.
     </para>
-    <para>
+                       <para>
      Freeing up memory allocated for agent session.
     </para>
-   </refsect1>
-  </refentry>
-
-  <refentry id="function.udm-free-ispell-data">
-   <refnamediv>
-    <refname>udm_free_ispell_data</refname>
-    <refpurpose>Free memory allocated for ispell data</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>int <function>udm_free_ispell_data</function></funcdef>
-      <paramdef>int <parameter>agent</parameter></paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_free_ispell_data</function> always returns <literal>TRUE</literal>.
+               </refsect1>
+       </refentry>
+       <refentry id="function.udm-free-ispell-data">
+               <refnamediv>
+                       <refname>udm_free_ispell_data</refname>
+                       <refpurpose>Free memory allocated for ispell data</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>int 
+<function>udm_free_ispell_data</function>
+                                       </funcdef>
+                                       <paramdef>int <parameter>agent</parameter>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_free_ispell_data</function> always 
+returns <literal>TRUE</literal>.
     </para>
-    <para>
-     <parameter>agent</parameter> - agent link identifier, received after call to 
<function>udm_alloc_agent</function>.
+                       <para>
+                               <parameter>agent</parameter> - agent link identifier, 
+received after call to <function>udm_alloc_agent</function>.
     </para>
-    <note>
-    <para>
+                       <note>
+                               <para>
      This function is supported beginning from version 3.1.12 of mnoGoSearch and it 
does not do anything in previous versions.
     </para>
-    </note>
-   </refsect1>
-  </refentry>
-  
-  <refentry id="function.udm-free-res">
-   <refnamediv>
-    <refname>udm_free_res</refname>
-    <refpurpose>Free mnoGoSearch result</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>int <function>udm_free_res</function></funcdef>
-      <paramdef>int <parameter>res</parameter></paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_free_res</function> returns <literal>TRUE</literal> on success, 
<literal>FALSE</literal> on error.
+                       </note>
+               </refsect1>
+       </refentry>
+       <refentry id="function.udm-free-res">
+               <refnamediv>
+                       <refname>udm_free_res</refname>
+                       <refpurpose>Free mnoGoSearch result</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>int <function>udm_free_res</function>
+                                       </funcdef>
+                                       <paramdef>int <parameter>res</parameter>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_free_res</function> returns 
+<literal>TRUE</literal> on success, <literal>FALSE</literal> on error.
     </para>
-    <para>
-     <parameter>res</parameter> - a link to result identifier,
+                       <para>
+                               <parameter>res</parameter> - a link to result 
+identifier,
      received after call to <function>udm_find</function>.
     </para>
-    <para>
+                       <para>
      Freeing up memory allocated for results.
     </para>
-   </refsect1>
-  </refentry>
-
-  <refentry id="function.udm-get-doc-count">
-   <refnamediv>
-    <refname>udm_get_doc_count</refname>
-    <refpurpose>Get total number of documents in database.</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>int <function>udm_get_doc_count</function></funcdef>
-      <paramdef>int <parameter>agent</parameter></paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_get_doc_count</function> returns nuimber of documents in database.
+               </refsect1>
+       </refentry>
+       <refentry id="function.udm-get-doc-count">
+               <refnamediv>
+                       <refname>udm_get_doc_count</refname>
+                       <refpurpose>Get total number of documents in 
+database.</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>int 
+<function>udm_get_doc_count</function>
+                                       </funcdef>
+                                       <paramdef>int <parameter>agent</parameter>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_get_doc_count</function> returns nuimber 
+of documents in database.
     </para>
-    <para>
-     <parameter>agent</parameter> - link to agent identifier, received
+                       <para>
+                               <parameter>agent</parameter> - link to agent 
+identifier, received
      after call to <function>udm_alloc_agent</function>.
     </para>
-    <note>
-    <simpara>
+                       <note>
+                               <simpara>
     This function is supported only in mnoGoSearch 3.1.11 or later.
     </simpara>
-    </note>
-   </refsect1>
-  </refentry>
-  
-  <refentry id="function.udm-get-res-field">
-   <refnamediv>
-    <refname>udm_get_res_field</refname>
-    <refpurpose>Fetch mnoGoSearch result field</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>string <function>udm_get_res_field</function></funcdef>
-      <paramdef>int <parameter>res</parameter></paramdef>
-      <paramdef>int <parameter>row</parameter></paramdef>
-         <paramdef>int <parameter>field</parameter></paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_get_res_field</function> returns result field value on success, 
<literal>FALSE</literal> on error.
+                       </note>
+               </refsect1>
+       </refentry>
+       <refentry id="function.udm-get-res-field">
+               <refnamediv>
+                       <refname>udm_get_res_field</refname>
+                       <refpurpose>Fetch mnoGoSearch result field</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>string 
+<function>udm_get_res_field</function>
+                                       </funcdef>
+                                       <paramdef>int <parameter>res</parameter>
+                                       </paramdef>
+                                       <paramdef>int <parameter>row</parameter>
+                                       </paramdef>
+                                       <paramdef>int <parameter>field</parameter>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_get_res_field</function> returns result 
+field value on success, <literal>FALSE</literal> on error.
     </para>
-    <para>
-     <parameter>res</parameter> - a link to result identifier,
+                       <para>
+                               <parameter>res</parameter> - a link to result 
+identifier,
      received after call to <function>udm_find</function>.
     </para>
-    <para>
-     <parameter>row</parameter> - the number of the link on the current page. May 
have values from 0 to 
+                       <para>
+                               <parameter>row</parameter> - the number of the link on 
+the current page. May have values from 0 to 
      <parameter>UDM_PARAM_NUM_ROWS</parameter>.
     </para>
-    <para>
-     <parameter>field</parameter> - field identifier, may have the following values:
+                       <para>
+                               <parameter>field</parameter> - field identifier, may 
+have the following values:
     </para>
-    <itemizedlist>
-     <listitem>
-      <simpara>
+                       <itemizedlist>
+                               <listitem>
+                                       <simpara>
        UDM_FIELD_URL - document URL field
       </simpara>
-     </listitem> 
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_FIELD_CONTENT - document Content-type field (for example, text/html).
       </simpara>
-     </listitem>
-     <listitem>
+                               </listitem>
+                               <listitem>
       <simpara>
+       UDM_FIELD_CATEGORY - document category field. Use 
+<function>udm_cat_path</function> to get full path to current category from the 
+categories tree root. (This parameter is available only in PHP 4.0.6 or later).
+      </simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_FIELD_TITLE - document title field.
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_FIELD_KEYWORDS - document keywords field (from META KEYWORDS tag).
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_FIELD_DESC - document description field (from META DESCRIPTION tag).
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_FIELD_TEXT - document body text (the first couple of lines to give an idea
         of what the document is about).
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_FIELD_SIZE - document size.
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_FIELD_URLID - unique URL ID of the link.
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_FIELD_RATING  - page rating (as calculated by mnoGoSearch).
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_FIELD_MODIFIED - last-modified field in unixtime format.
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_FIELD_ORDER - the number of the current document in set of found documents.
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_FIELD_CRC - document CRC.
       </simpara>
-     </listitem>
-    </itemizedlist>
-   </refsect1>
-  </refentry>  
-    
-  <refentry id="function.udm-get-res-param">
-   <refnamediv>
-    <refname>udm_get_res_param</refname>
-    <refpurpose>Get mnoGoSearch result parameters</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>string <function>udm_get_res_param</function></funcdef>
-      <paramdef>int <parameter>res</parameter></paramdef>
-      <paramdef>int <parameter>param</parameter></paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_get_res_param</function> returns result parameter
+                               </listitem>
+                       </itemizedlist>
+               </refsect1>
+       </refentry>
+       <refentry id="function.udm-get-res-param">
+               <refnamediv>
+                       <refname>udm_get_res_param</refname>
+                       <refpurpose>Get mnoGoSearch result parameters</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>string 
+<function>udm_get_res_param</function>
+                                       </funcdef>
+                                       <paramdef>int <parameter>res</parameter>
+                                       </paramdef>
+                                       <paramdef>int <parameter>param</parameter>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_get_res_param</function> returns result 
+parameter
      value on success, <literal>FALSE</literal> on error.
     </para>
-    <para>
-     <parameter>res</parameter> - a link to result identifier,
+                       <para>
+                               <parameter>res</parameter> - a link to result 
+identifier,
      received after call to <function>udm_find</function>.
     </para>
-    <para>
-     <parameter>param</parameter> - parameter identifier, may have the
+                       <para>
+                               <parameter>param</parameter> - parameter identifier, 
+may have the
      following values:
     </para>
-    <itemizedlist>
-      <listitem>
-      <simpara>
+                       <itemizedlist>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_NUM_ROWS - number of received found links on the current page.  It 
is equal to
        UDM_PARAM_PAGE_SIZE for all search pages, on the last page - the rest of links.
       </simpara>
-     </listitem> 
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_FOUND - total number of results matching the query.
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_WORDINFO - information on the words found. E.g. search for "a good 
book" will return "a: stopword, good:5637, book: 120"
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_SEARCHTIME - search time in seconds.
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_FIRST_DOC - the number of the first document displayed on current 
page.
       </simpara>
-     </listitem>
-     <listitem>
-      <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_LAST_DOC - the number of the last document displayed on current page.
       </simpara>
-     </listitem>
-    </itemizedlist>
-   </refsect1>
-  </refentry>
-
- 
-  <refentry id="function.udm-load-ispell-data">
-   <refnamediv>
-    <refname>udm_load_ispell_data</refname>
-    <refpurpose>Load ispell data</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>int <function>udm_load_ispell_data</function></funcdef>
-      <paramdef>int <parameter>agent</parameter></paramdef>
-      <paramdef>int <parameter>var</parameter></paramdef>
-      <paramdef>string <parameter>val1</parameter></paramdef>
-      <paramdef>string <parameter>val2</parameter></paramdef>
-      <paramdef>int <parameter>flag</parameter></paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_load_ispell_data</function> loads ispell data. Returns 
<literal>TRUE</literal> on success, <literal>FALSE</literal> on error.</para>
-    <para>
-     <parameter>agent</parameter> - agent link identifier, received after call to 
<function>udm_alloc_agent</function>.
+                               </listitem>
+                       </itemizedlist>
+               </refsect1>
+       </refentry>
+       <refentry id="function.udm-load-ispell-data">
+               <refnamediv>
+                       <refname>udm_load_ispell_data</refname>
+                       <refpurpose>Load ispell data</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>int 
+<function>udm_load_ispell_data</function>
+                                       </funcdef>
+                                       <paramdef>int <parameter>agent</parameter>
+                                       </paramdef>
+                                       <paramdef>int <parameter>var</parameter>
+                                       </paramdef>
+                                       <paramdef>string <parameter>val1</parameter>
+                                       </paramdef>
+                                       <paramdef>string <parameter>val2</parameter>
+                                       </paramdef>
+                                       <paramdef>int <parameter>flag</parameter>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_load_ispell_data</function> loads ispell 
+data. Returns <literal>TRUE</literal> on success, <literal>FALSE</literal> on 
+error.</para>
+                       <para>
+                               <parameter>agent</parameter> - agent link identifier, 
+received after call to <function>udm_alloc_agent</function>.
     </para>
-    <para>
-     <parameter>var</parameter> - parameter, indicating the source for ispell data. 
May have the following values:
+                       <para>
+                               <parameter>var</parameter> - parameter, indicating the 
+source for ispell data. May have the following values:
     </para>
-    <para>
+                       <para>
     After using this function to free memory allocated for ispell data, please use 
     <function>udm_free_ispell_data</function>, even if you use UDM_ISPELL_TYPE_SERVER 
mode.
     </para>
-    <para>
+                       <para>
     The fastest mode is UDM_ISPELL_TYPE_SERVER. UDM_ISPELL_TYPE_TEXT is slower 
     and UDM_ISPELL_TYPE_DB is the slowest. The above pattern is true for mnoGoSearch 
3.1.10 - 3.1.11. 
     It is planned to speed up DB mode in future versions and it is going to be faster 
than TEXT mode.
     </para>
-    <itemizedlist>
-     <listitem>
-    <simpara>
+                       <itemizedlist>
+                               <listitem>
+                                       <simpara>
     UDM_ISPELL_TYPE_DB - indicates that ispell data should be loaded from SQL. In 
this case, parameters <parameter>val1</parameter> and <parameter>val2</parameter> are 
ignored and
     should be left blank. <parameter>flag</parameter> should be equal to 
<literal>1</literal>.
     </simpara>
-    <note>
-    <para>
-    <parameter>flag</parameter> indicates that after loading ispell data from defined 
source it sould be sorted (it is necessary for correct functioning of ispell).
+                                       <note>
+                                               <para>
+                                                       <parameter>flag</parameter> 
+indicates that after loading ispell data from defined source it sould be sorted (it 
+is necessary for correct functioning of ispell).
     In case of loading ispell data from files there may be several calls to 
<function>udm_load_ispell_data</function>, and there is no sense to sort data after 
every call, but only after the last one.
     Since in db mode all the data is loaded by one call, this parameter should have 
the value <literal>1</literal>.
     In this mode in case of error, e.g. if ispell tables are absent, the function 
will return <literal>FALSE</literal> and code and error message will be accessible 
through <function>udm_error</function> and <function>udm_errno</function>.
     </para>
-    </note>
-    <simpara>Example:</simpara>
-    <informalexample>
-    <programlisting role="C">
+                                       </note>
+                                       <simpara>Example:</simpara>
+                                       <informalexample>
+                                               <programlisting role="C">
           if (! Udm_Load_Ispell_Data($udm,UDM_ISPELL_TYPE_DB,'','',1)) {
               printf("Error #%d: '%s'\n",Udm_Errno($udm),Udm_Error($udm));
               exit;
            }
        </programlisting>
-       </informalexample>
-     </listitem>
-     <listitem>
-     <para>
+                                       </informalexample>
+                               </listitem>
+                               <listitem>
+                                       <para>
      UDM_ISPELL_TYPE_AFFIX - indicates that ispell data should be loaded from file 
and initiates loading affixes file.
      In this case <parameter>val1</parameter> defines double letter language code for 
which affixes are loaded, 
      and <parameter>val2</parameter> - file path. Please note, that if a relative 
path entered, the module looks for
@@ -685,9 +824,9 @@
      Error message text cannot be accessed through <function>udm_error</function> and 
<function>udm_errno</function>, since those functions
      can only return messages associated with SQL. Please, see 
<parameter>flag</parameter> parameter description in UDM_ISPELL_TYPE_DB.
      </para>
-     <simpara>Example:</simpara>
-    <informalexample>
-    <programlisting role="C">
+                                       <simpara>Example:</simpara>
+                                       <informalexample>
+                                               <programlisting role="C">
            if ((! 
Udm_Load_Ispell_Data($udm,UDM_ISPELL_TYPE_AFFIX,'en','/opt/ispell/en.aff',0)) ||
                (! 
Udm_Load_Ispell_Data($udm,UDM_ISPELL_TYPE_AFFIX,'ru','/opt/ispell/ru.aff',0)) ||
                (! 
Udm_Load_Ispell_Data($udm,UDM_ISPELL_TYPE_SPELL,'en','/opt/ispell/en.dict',0)) ||
@@ -695,15 +834,15 @@
               exit;
            }
        </programlisting>
-       </informalexample>
-       <note>
-       <para>
-       <parameter>flag</parameter> is equal to <literal>1</literal> only in the last 
call.
+                                       </informalexample>
+                                       <note>
+                                               <para>
+                                                       <parameter>flag</parameter> is 
+equal to <literal>1</literal> only in the last call.
        </para>
-       </note>
-        </listitem>
-        <listitem>
-        <para>
+                                       </note>
+                               </listitem>
+                               <listitem>
+                                       <para>
         UDM_ISPELL_TYPE_SPELL - indicates that ispell data should be loaded from file 
and initiates loading of ispell dictionary file.
         In this case <parameter>val1</parameter> defines double letter language code 
for which affixes are loaded, 
      and <parameter>val2</parameter> - file path. Please note, that if a relative 
path entered, the module looks for
@@ -711,10 +850,10 @@
      In case of error in this mode, e.g. if file is absent, the function will return 
<literal>FALSE</literal>, and an error message will be displayed.
      Error message text cannot be accessed through <function>udm_error</function> and 
<function>udm_errno</function>, since those functions
      can only return messages associated with SQL. Please, see 
<parameter>flag</parameter> parameter description in UDM_ISPELL_TYPE_DB.
-     </para> 
-     <simpara>Example:</simpara>
-    <informalexample>
-    <programlisting role="C">
+     </para>
+                                       <simpara>Example:</simpara>
+                                       <informalexample>
+                                               <programlisting role="C">
            if ((! 
Udm_Load_Ispell_Data($udm,UDM_ISPELL_TYPE_AFFIX,'en','/opt/ispell/en.aff',0)) ||
                (! 
Udm_Load_Ispell_Data($udm,UDM_ISPELL_TYPE_AFFIX,'ru','/opt/ispell/ru.aff',0)) ||
                (! 
Udm_Load_Ispell_Data($udm,UDM_ISPELL_TYPE_SPELL,'en','/opt/ispell/en.dict',0)) ||
@@ -722,22 +861,22 @@
               exit;
            }
        </programlisting>
-       </informalexample>
-       <note>
-       <para>
-       <parameter>flag</parameter> is equal to <literal>1</literal> only in the last 
call.
+                                       </informalexample>
+                                       <note>
+                                               <para>
+                                                       <parameter>flag</parameter> is 
+equal to <literal>1</literal> only in the last call.
        </para>
-       </note>
-        </listitem>
-        <listitem>
-        <para>
+                                       </note>
+                               </listitem>
+                               <listitem>
+                                       <para>
         UDM_ISPELL_TYPE_SERVER - enables spell server support. 
<parameter>val1</parameter> parameter indicates 
         address of the host running spell server. <parameter>val2</parameter> is not 
used yet, but 
         in future releases it is going to indicate number of port used by spell 
server. 
         <parameter>flag</parameter> parameter in this case is not needed since ispell 
data is stored 
         on spellserver already sorted.  
         </para>
-        <para>
+                                       <para>
        Spelld server reads spell-data from a separate configuration file
        (/usr/local/mnogosearch/etc/spelld.conf by default), sorts it and stores in
        memory. With clients server communicates in two ways: to indexer all the
@@ -746,90 +885,93 @@
        of normalized word forms. This allows fastest, compared to db and text modes 
        processing of search queries (by omitting loading and sorting all the spell 
data).
         </para>
-        <para>
-        <function>udm_load_ispell_data</function> function in UDM_ISPELL_TYPE_SERVER 
mode does not
+                                       <para>
+                                               
+<function>udm_load_ispell_data</function> function in UDM_ISPELL_TYPE_SERVER mode 
+does not
         actually load ispell data, but only defines server address. In fact, server 
is automatically used
         by <function>udm_find</function> function when performing search. In case of 
errors, e.g. if spellserver 
         is not running or invalid host indicated, there are no messages returned and 
ispell conversion 
         does not work.
         </para>
-        <note>
-        <para>
+                                       <note>
+                                               <para>
         This function is available in mnoGoSearch 3.1.12 or later.
         </para>
-        </note>
-        <simpara>Example:</simpara>
-    <informalexample>
-    <programlisting role="C">
+                                       </note>
+                                       <simpara>Example:</simpara>
+                                       <informalexample>
+                                               <programlisting role="C">
     if (! Udm_Load_Ispell_Data($udm,UDM_ISPELL_TYPE_SERVER,'','',1)) {
        printf("Error loading ispell data from server&lt;br&gt;\n");
        exit;
        }
        </programlisting>
-       </informalexample>
-        </listitem>
-       </itemizedlist> 
-   </refsect1>
-  </refentry>
-
-  <refentry id="function.udm-set-agent-param">
-   <refnamediv>
-    <refname>udm_set_agent_param</refname>
-    <refpurpose>Set mnoGoSearch agent session parameters</refpurpose>
-   </refnamediv>
-   <refsect1>
-    <title>Description</title>
-    <funcsynopsis>
-     <funcprototype>
-      <funcdef>int <function>udm_set_agent_param</function></funcdef>
-      <paramdef>int <parameter>agent</parameter></paramdef>
-      <paramdef>int <parameter>var</parameter></paramdef>
-      <paramdef>string <parameter>val</parameter></paramdef>
-     </funcprototype>
-    </funcsynopsis>
-    <para>
-     <function>udm_set_agent_param</function> returns <literal>TRUE</literal> on 
success,
+                                       </informalexample>
+                               </listitem>
+                       </itemizedlist>
+               </refsect1>
+       </refentry>
+       <refentry id="function.udm-set-agent-param">
+               <refnamediv>
+                       <refname>udm_set_agent_param</refname>
+                       <refpurpose>Set mnoGoSearch agent session 
+parameters</refpurpose>
+               </refnamediv>
+               <refsect1>
+                       <title>Description</title>
+                       <funcsynopsis>
+                               <funcprototype>
+                                       <funcdef>int 
+<function>udm_set_agent_param</function>
+                                       </funcdef>
+                                       <paramdef>int <parameter>agent</parameter>
+                                       </paramdef>
+                                       <paramdef>int <parameter>var</parameter>
+                                       </paramdef>
+                                       <paramdef>string <parameter>val</parameter>
+                                       </paramdef>
+                               </funcprototype>
+                       </funcsynopsis>
+                       <para>
+                               <function>udm_set_agent_param</function> returns 
+<literal>TRUE</literal> on success,
      <literal>FALSE</literal> on error.  Defines mnoGoSearch session parameters.
     </para>
-    <simpara>
+                       <simpara>
      The following parameters and their values are available:
     </simpara>
-    <itemizedlist>
-     <listitem>
-       <simpara>
+                       <itemizedlist>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_PAGE_NUM - used to choose search results page number (results are 
returned by pages beginning from
     0, with UDM_PARAM_PAGE_SIZE results per page).
        </simpara>
-     </listitem> 
-     <listitem>
-       <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_PAGE_SIZE - number of search results displayed on one page.
        </simpara>
-     </listitem> 
-     <listitem>
-       <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_SEARCH_MODE - search mode. The following values available: 
UDM_MODE_ALL -
     search for all words; UDM_MODE_ANY - search for any word; UDM_MODE_PHRASE - 
phrase search; UDM_MODE_BOOL - boolean search. See <function>udm_find</function> for 
details on boolean search.
        </simpara>
-      </listitem> 
-      <listitem>
-       <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_CACHE_MODE - turns on or off search result cache mode. When enabled, 
the search engine will store 
        search results to disk. In case a similar search is performed later, the 
engine will take results from the cache for faster performance.
        Available values: UDM_CACHE_ENABLED, UDM_CACHE_DISABLED.
        </simpara>
-      </listitem> 
-      <listitem>
-       <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_TRACK_MODE - turns on or off trackquery mode. Since version 3.1.2 
mnoGoSearch has a query tracking support.
        Note that tracking is implemented in SQL version only and not available in 
built-in database. 
        To use tracking, you have to create tables for tracking support. For MySQL, 
use create/mysql/track.txt. 
        When doing a search, front-end uses those tables to store query words, a 
number of found documents and current UNIX timestamp in seconds.
        Available values: UDM_TRACK_ENABLED, UDM_TRACK_DISABLED.
        </simpara>
-      </listitem>
-      <listitem>
-       <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_PHRASE_MODE - defines whether index database using phrases ("phrase" 
parameter in indexer.conf). 
        Possible values: UDM_PHRASE_ENABLED and UDM_PHRASE_DISABLED.
        Please note, that if phrase search is enabled (UDM_PHRASE_ENABLED), 
@@ -837,21 +979,21 @@
        In 3.1.10 version of mnoGoSearch phrase search is supported only in sql and 
buuilt-in database modes, 
        while beginning with 3.1.11 phrases are supported in cachemode as well. 
           </simpara>
-          <simpara>
+                                       <simpara>
           Examples of phrase search:
        </simpara>
-       <simpara>
+                                       <simpara>
        "Arizona desert" - This query returns all indexed documents that contain 
"Arizona desert" as a phrase. Notice that you need to put double quotes around the 
phrase
        </simpara>
-      </listitem>  
-      <listitem>
-       <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_CHARSET - defines local charset. Available values: set of charsets 
supported by mnoGoSearch,
     e.g. koi8-r, cp1251, ...
        </simpara>
-      </listitem> 
-      <listitem>
-       <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_STOPFILE - Defines name and path
      to stopwords file.  (There is a small difference with mnoGoSearch
      - while in mnoGoSearch if relative path or no path entered, it
@@ -859,117 +1001,115 @@
      the file in relation to current path, i.e. to the path where the
      php script is executed.)
           </simpara>
-         </listitem>
-         <listitem>
-       <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_STOPTABLE - Load stop words from the given SQL table. You may use 
several StopwordTable commands. 
      This command has no effect when compiled without SQL database support.
           </simpara>
-         </listitem>
-          <listitem>
-     <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_WEIGHT_FACTOR - represents weight factors for specific document 
parts. Currently body, title, keywords, description, url are supported.
        To activate this feature please use degrees of 2 in *Weight commands of 
        the indexer.conf. Let's imagine that we have these weights:
        </simpara>
-       <simpara>URLWeight     1</simpara>
-       <simpara>BodyWeight    2</simpara>
-       <simpara>TitleWeight   4</simpara>
-    <simpara>KeywordWeight 8</simpara> 
-    <simpara>DescWeight    16</simpara>
-       <simpara>
+                                       <simpara>URLWeight     1</simpara>
+                                       <simpara>BodyWeight    2</simpara>
+                                       <simpara>TitleWeight   4</simpara>
+                                       <simpara>KeywordWeight 8</simpara>
+                                       <simpara>DescWeight    16</simpara>
+                                       <simpara>
        As far as indexer uses bit OR operation for word weights when some
        word presents several time in the same document, it is possible at search 
        time to detect word appearance in different document parts. Word which 
        appears only in the body will have 00000010 argegate weight (in binary 
notation).
        Word used in all document parts will have 00011111 aggregate weight.
        </simpara>
-       <simpara>
+                                       <simpara>
        This parameter's value is a string of hex digits ABCDE. Each digit is a factor 
for corresponding bit in word weight. For the given above weights 
        configuration:
      </simpara>
-     <simpara>E is a factor for weight 1  (URL Weight bit)</simpara>
-     <simpara>D is a factor for weight 2  (BodyWeight bit)</simpara>
-     <simpara>C is a factor for weight 4  (TitleWeight bit)</simpara>
-     <simpara>B is a factor for weight 8  (KeywordWeight bit)</simpara>
-     <simpara>A is a factor for weight 16 (DescWeight bit)</simpara>
-     <simpara>
+                                       <simpara>E is a factor for weight 1  (URL 
+Weight bit)</simpara>
+                                       <simpara>D is a factor for weight 2  
+(BodyWeight bit)</simpara>
+                                       <simpara>C is a factor for weight 4  
+(TitleWeight bit)</simpara>
+                                       <simpara>B is a factor for weight 8  
+(KeywordWeight bit)</simpara>
+                                       <simpara>A is a factor for weight 16 
+(DescWeight bit)</simpara>
+                                       <simpara>
      Examples:
         </simpara>
-        <simpara>
+                                       <simpara>
         UDM_PARAM_WEIGHT_FACTOR=00001 will search through URLs only.
-        </simpara>     
-        <simpara>
+        </simpara>
+                                       <simpara>
      UDM_PARAM_WEIGHT_FACTOR=00100 will search through Titles only.
-        </simpara>     
-        <simpara>
+        </simpara>
+                                       <simpara>
      UDM_PARAM_WEIGHT_FACTOR=11100 will search through Title,Keywords,Desctription 
but not through URL and Body.
         </simpara>
-        <simpara>
+                                       <simpara>
      UDM_PARAM_WEIGHT_FACTOR=F9421 will search through:
       </simpara>
-      <simpara>Description with factor 15  (F hex)</simpara>
-      <simpara>Keywords with factor 9</simpara>
-      <simpara>Title with factor  4</simpara>
-      <simpara>Body with factor 2</simpara>
-      <simpara>URL with factor 1</simpara>
-      <simpara>
+                                       <simpara>Description with factor 15  (F 
+hex)</simpara>
+                                       <simpara>Keywords with factor 9</simpara>
+                                       <simpara>Title with factor  4</simpara>
+                                       <simpara>Body with factor 2</simpara>
+                                       <simpara>URL with factor 1</simpara>
+                                       <simpara>
        If UDM_PARAM_WEIGHT_FACTOR variable is ommited, original weight value is
        taken to sort results. For a given above weight configuration it means
        that document description has a most big weight 16.
       </simpara>
-         </listitem>
-         <listitem>
-       <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
         UDM_PARAM_WORD_MATCH - word match. You may use this parameter to choose word 
match type. This feature works only 
         in "single" and "multi" modes using SQL based and built-in database. It does 
not work in cachemode and other modes 
         since they use word CRC and do not support substring search.
         Available values:
           </simpara>
-        <simpara>UDM_MATCH_BEGIN - word beginning match;</simpara>
-     <simpara>UDM_MATCH_END - word ending match;</simpara>
-     <simpara>UDM_MATCH_WORD - whole word match;</simpara>
-     <simpara>UDM_MATCH_SUBSTR - word substring match.</simpara>
-      </listitem>
-      <listitem>
-       <simpara>
+                                       <simpara>UDM_MATCH_BEGIN - word beginning 
+match;</simpara>
+                                       <simpara>UDM_MATCH_END - word ending 
+match;</simpara>
+                                       <simpara>UDM_MATCH_WORD - whole word 
+match;</simpara>
+                                       <simpara>UDM_MATCH_SUBSTR - word substring 
+match.</simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
         UDM_PARAM_MIN_WORD_LEN - defines minimal word length. 
         Any word shorter this limit is considered to be a stopword. Please note that 
this paraneter value is inclusive, 
         i.e. if UDM_PARAM_MIN_WORD_LEN=3, a word 3 characters long will not be 
considered a stopword, while
         a word 2 characters long will be. Default value is 1.
           </simpara>
-      </listitem>    
-      <listitem>
-       <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
        UDM_PARAM_ISPELL_PREFIXES - Possible values: UDM_PREFIXES_ENABLED and 
UDM_PREFIXES_DISABLED, 
        that respectively enable or disable using prefixes. E.g. if a word "tested" is 
in search query, also words like "test", "testing", etc.
        Only suffixes are supported by default. Prefixes usually change word meanings, 
for example if somebody is searching for the word "tested" 
        one hardly wants "untested"  to be found. Prefixes support may also be found 
useful for site's 
           spelling checking purposes. In order to enable ispell, you have to load 
ispell data with <function>udm_load_ispell_data</function>.
           </simpara>
-          </listitem>
-          <listitem>
-       <simpara>
+                               </listitem>
+                               <listitem>
+                                       <simpara>
           UDM_PARAM_CROSS_WORDS - enables or disables crosswords support. 
           Possible values: UDM_CROSS_WORDS_ENABLED and UDM_CROSS_WORDS_DISABLED.
           </simpara>
-          <simpara>
+                                       <simpara>
           The corsswords feature allows to assign words between &lt;a href="xxx"&gt; 
and &lt;/a&gt; 
           also to a document this link leads to. It works in SQL database mode and 
           is not supported in built-in database and Cachemode.
           </simpara>
-          <note>
-          <simpara>
+                                       <note>
+                                               <simpara>
           Crosswords are supported only in mnoGoSearch 3.1.11 or later.
           </simpara>
-          </note>
-      </listitem>
-     </itemizedlist>
-    </refsect1>
-  </refentry>
+                                       </note>
+                               </listitem>
+                       </itemizedlist>
+               </refsect1>
+       </refentry>
 </reference>
-   
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml

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