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<?php // -*-php-*-
rcs_id('$Id: TextSearchIter.php,v 1.7 2005/11/14 22:24:33 rurban Exp $');
class WikiDB_backend_dumb_TextSearchIter
extends WikiDB_backend_iterator
{
function WikiDB_backend_dumb_TextSearchIter(&$backend, &$pages, $search, $fulltext=false,
$options=array())
{
$this->_backend = &$backend;
$this->_pages = $pages;
$this->_fulltext = $fulltext;
$this->_search =& $search;
$this->_index = 0;
$this->_stoplist =& $search->_stoplist;
$this->stoplisted = array();
if (isset($options['limit'])) $this->_limit = $options['limit'];
else $this->_limit = 0;
if (isset($options['exclude'])) $this->_exclude = $options['exclude'];
else $this->_exclude = false;
}
function _get_content(&$page) {
$backend = &$this->_backend;
$pagename = $page['pagename'];
if (!isset($page['versiondata'])) {
$version = $backend->get_latest_version($pagename);
$page['versiondata'] = $backend->get_versiondata($pagename, $version, true);
}
return $page['versiondata']['%content'];
}
function _match(&$page) {
$text = $page['pagename'];
if ($result = $this->_search->match($text)) // first match the pagename only
return $result;
if ($this->_fulltext) {
// eliminate stoplist words from fulltext search
if (preg_match("/^".$this->_stoplist."$/i", $text)) {
$this->stoplisted[] = $text;
return $result;
}
$text .= "\n" . $this->_get_content($page);
return $this->_search->match($text);
} else
return $result;
}
function next() {
$pages = &$this->_pages;
while ($page = $pages->next()) {
if ($this->_match($page)) {
if ($this->_limit and ($this->_index++ >= $this->_limit))
return false;
return $page;
}
}
return false;
}
function free() {
$this->_pages->free();
}
};
// (c-file-style: "gnu")
// Local Variables:
// mode: php
// tab-width: 8
// c-basic-offset: 4
// c-hanging-comment-ender-p: nil
// indent-tabs-mode: nil
// End:
?>
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