<?vsp 
--  
--  $Id: search.vsp,v 1.2.2.1 2012/03/08 12:55:21 source Exp $
--
--  This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
--  project.
--  
--  Copyright (C) 1998-2012 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
--  

 adm_pre_page(lines);


  declare _title, _helpstring, _author, _page_desc varchar;
  declare is_empty integer;

  _title := 'Virtuoso Documentation Search';
  _author := 'OpenLink Software';
  _helpstring := 'virtdocsearch';
  _page_desc := 'To enable users to quickly search based on the keywords for parts of the documentation.';

-- #######################################

declare _keywords varchar;
is_empty := 0;

_keywords := get_keyword('keywords', params, '');

?>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<HTML>
  <HEAD>
  <LINK REL="stylesheet" TYPE="text/css" HREF="search.css" />
    <TITLE><?=_title?></TITLE>
    <meta name="AUTHOR" CONTENT="<?=_author?>">
    <meta name="DESCRIPTION" CONTENT="<?=_page_desc?>">
    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
    <meta name="COPYRIGHT" content="OpenLink Software., 2005">
    <meta name="GENERATOR" content="OpenLink XSLT Team"></head>
    <link rel="top" href="index.html" title="Virtuoso Universal Server Documentation">
    <link rel="search" href="/doc/search.vsp" title="Search Virtdocs">
    <link rel="shortcut icon" href="../images/misc/viwin32.ico" type="image/x-icon">
  </HEAD>
<body>
<DIV id="header"><A name="search"></A><IMG src="images/misc/logo.jpg" alt="">
<H1><?=_title?></H1></DIV>

<div id="navbartop"><div>
<a href="html/index.html">Home</a> |
<a href="html/contents.html">Contents</a>
</div></div>
<div id="searchbar">
  <form method="POST" action="/doc/search.vsp">
  Keyword Search: <input type="text" name="txt" value="<?={?'txt'}?>"/> <input type="submit" name="go" VALUE="Go" />
  </form>
</div>

<div id="searchresults">
<table>
<?vsp
 declare exp, exp1, exp2 varchar;
 declare hit_words any;
 declare i, l, j, cnt, _from, _to, _from1, _to1, br, st, max_i, cf, results_per_page, m, n integer;
 declare ra, xt, xp, res any;
 declare vt, war, res1 any;
 --dbg_obj_print (params);
 results_per_page :=20;
 exp := get_keyword ('txt', params, '');
 if (length (exp)< 2)
   exp := 'thiscantbefoundanywhere';
 exp := trim (exp, ' ');

 exp1 := '';
 hit_words := vector();
 if (strchr (exp, '"') is not null or strchr (exp, '''') is not null)
   {
     declare tmp, w varchar;
     tmp := exp;
     w := regexp_match ('["][^"]+["]|[''][^'']+['']|[^"'' ]+', tmp, 1);
     while (w is not null)
       {
--   dbg_obj_print ('match:' , w);
         w := trim (w, '"'' ');
         if (upper(w) <> 'AND' and upper(w) <> 'NOT' and upper(w) <> 'NEAR' and upper(w) <> 'OR' and length (w) > 1and not vt_is_noise (w, 'utf-8', 'x-ViDoc'))
           exp1 := concat (exp1, sprintf ('"%s" AND ', replace(w, '"', '')));
         w := regexp_match ('["][^"]+["]|[''][^'']+['']|[^"'' ]+', tmp, 1);
       }
--     dbg_obj_print (exp1);
     if (length (exp1) > 6)
       {
         exp1 := substring (exp1, 1, length (exp1) - 5);
         goto end_parse;
       }
   }

 vt := vt_batch ();
 vt_batch_feed (vt, exp, 0, 0, 'x-ViDoc');
 war := vt_batch_strings_array (vt);

 m := length (war);
 --dbg_obj_print (war);
 n := 0;
 exp1 := '(';
 while (n < m)
   {
     declare word1 varchar;
     if (war[n] <> 'AND' and war[n] <> 'NOT' and war[n] <> 'NEAR' and war[n] <> 'OR' and length (war[n]) > 1 and not vt_is_noise (war[n], 'utf-8', 'x-ViDoc'))
       {
         word1 := war[n];
   hit_words := vector_concat (hit_words, vector (word1));
--         if (strchr (word1, '.') is not null)
           word1 := concat ('"', word1, '"');
         exp1 := concat (exp1, word1, ' AND ');
       }
     n := n + 2;
   }

 if (length (exp1) > 5)
   {
     exp1 := substring (exp1, 1, length (exp1) - 5);
     exp1 := concat (exp1, ')');
   }
 else
   exp1 := 'thiscantbefoundanywhere';

end_parse:

-- dbg_obj_print ('expr: ', exp1);
-- exp2 := replace (exp, '"', '');
http(exp1);
--return;

 _from := atoi (get_keyword ('f',params,'0'));
 _to := atoi (get_keyword ('t',params, cast (results_per_page as char)));
 cf := _to;
 st := 0;
 max_i := 100;
 if (_from < 2)
   st := 1;
 res := vector ();
 br := 0;

 declare doc_installed integer;
 doc_installed := case when DB.DBA.vad_check_version ('doc') is not null then 1 else 0 end;

 if (doc_installed)
 {
   for select "RES_ID", "RES_CONTENT", "RES_NAME", length("RES_CONTENT") as rlen
     from "WS"."WS"."SYS_DAV_RES"
     where "RES_FULL_PATH" like '/DAV/VAD/doc/html/%'
       and "RES_FULL_PATH" not like '/DAV/VAD/doc/html/chaptermenu%'
       and "RES_FULL_PATH" not like '/DAV/VAD/doc/html/virtdocs%'
       and "RES_FULL_PATH" <> '/DAV/VAD/doc/html/contents.html'
       and "RES_FULL_PATH" <> '/DAV/VAD/doc/html/functionsidx.html'
     do
     {
       res := vector_concat (res, vector (cast (RES_ID as varchar), RES_NAME));
     }
  }else{
 for select "RES_ID", "RES_CONTENT", "RES_NAME", length("RES_CONTENT") as rlen
   from "WS"."WS"."SYS_DAV_RES"
   where "RES_FULL_PATH" like '/DAV/doc/html/%'
     and "RES_FULL_PATH" not like '/DAV/doc/html/chaptermenu%'
     and "RES_FULL_PATH" not like '/DAV/doc/html/virtdocs%'
     and "RES_FULL_PATH" <> '/DAV/doc/html/contents.html'
     and "RES_FULL_PATH" <> '/DAV/doc/html/functionsidx.html'
   do
   {
     res := vector_concat (res, vector (cast (RES_ID as varchar), RES_NAME));
   }
  };
  -- dbg_obj_print(res);
  j := 0; l := length (res); cnt := 0;
  --while (j<l)
  {
    declare res_name, excerpt any;
    declare i, p integer;
    declare excerpt_samples varchar;
    i := 0;
    for (select "d_id" as id, "d_anch", "d_res_id", score
       from "DB"."DBA"."document_search"
       where contains (d_txt, concat ('[__lang ''x-ViDoc''] ',exp1))
       order by score desc)
    do
    {
      declare d_txt any;
      d_txt := (select d_txt from "DB"."DBA"."document_search" where "d_id" = id);
      excerpt := regexp_match ('>[^<>]+</', Blob_to_string(d_txt));
      if (length (hit_words) > 9)
        hit_words := subseq (hit_words, 0, 9);
      if (length (hit_words) > 0)
        excerpt_samples := coalesce (search_excerpt (hit_words,  blob_to_string (d_txt)), '');
      else
        excerpt_samples := '';           
      if (excerpt is not null)
         excerpt := trim (excerpt, '></ ');
      else
      {
        excerpt := substring (blob_to_string(d_txt), 1, 50);
      }
      res_name := get_keyword (cast(d_res_id as varchar), res, '');
      if (res_name = '')
        goto nextc;
      cnt := cnt + 1;
      if (cnt < _from)
        goto nextc;
      if (not br)
      {
        is_empty := 1;
?>
   <tr>
     <td><?=cnt?>.</td>
     <td><a href="html/<?=res_name?>#<?=d_anch?>"><?vsp http(excerpt); ?></a></td>
     <td><img src="score.gif" height="5" width="<?vsp if(score>300) {http('100');} else {http_value(score);} ?>" /></td>
   </tr>
   <tr>  <td colspan="3"><?vsp http(excerpt_samples); ?></td> </tr>
<?vsp
      }
      if (cnt >= _to)
      {
        br := 1;
        if (cnt >= max_i)
         goto endf;
      }
      nextc:;
      i:=i+1;
    }
    j := j + 1;
  }
endf:;
   --dbg_obj_print ('i=',i,' j=', j,'br= ', br, 'cnt=', cnt,' max_i=', max_i);
   if (cnt = results_per_page)
     br := 0;
   if (not is_empty)
     {
       if (exp = 'thiscantbefoundanywhere')
   exp := '';
?>
   <tr><td colspan="3">Your search "<?=exp?>" did not match any documents.</td></tr>
<?vsp
     }


   _from1 := _to - (2 * results_per_page);

   if (_from1 < 0)
     _from1 := 0;

   _to1 := _from1 + results_per_page;
   _from1 := _from1 + 1;

   _from := _to;
   _to := _from + results_per_page;
   _from := _from + 1;

?>
</table>
</div>

<DIV id="srcnavbar">
<?vsp if (not st) { ?>
<A HREF="search.vsp?txt=<?=exp?>&f=<?=_from1?>&t=<?=_to1?>">&lt;&lt; Prev</A>
<?vsp } ?>
<?vsp
  declare x integer;
  x:= results_per_page;
  while (cnt > results_per_page and is_empty and (x <= cnt+results_per_page))
    {
      if (cf = x)
  {
?>
    <A HREF="search.vsp?txt=<?=exp?>&f=<?=(x-results_per_page)+1?>&t=<?=(x-results_per_page)+results_per_page?>"><b>[<?=x/results_per_page?>]</b></A>
<?vsp
  }
      else
  {
?>
    <A HREF="search.vsp?txt=<?=exp?>&f=<?=(x-results_per_page)+1?>&t=<?=(x-results_per_page)+results_per_page?>"><?=x/results_per_page?></A>
<?vsp
  }
      x := x+results_per_page;
    }
?>
<?vsp if (br) { ?>
<A HREF="search.vsp?txt=<?=exp?>&f=<?=_from?>&t=<?=_to?>">Next &gt;&gt;</A>
<?vsp } ?>
</DIV>

<DIV id="footer"><DIV>©2005 OpenLink Software. All rights reserved.</DIV></DIV>
</body>
</HTML>
