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<?php
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/**
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*
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* @category frontend
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* @package search
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* @author WebsiteBaker Project
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* @copyright 2004-2009, Ryan Djurovich
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* @copyright 2009-2011, Website Baker Org. e.V.
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* @link http://www.websitebaker2.org/
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* @license http://www.gnu.org/licenses/gpl.html
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* @platform WebsiteBaker 2.8.x
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* @requirements PHP 5.2.2 and higher
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* @version $Id$
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* @filesource $HeadURL$
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* @lastmodified $Date$
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*
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*/
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// make the url-string for highlighting
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function make_url_searchstring($search_match, $search_url_array)
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{
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$link = "";
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if ($search_match != 'exact')
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{
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$str = implode(" ", $search_url_array);
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$link = "?searchresult=1&sstring=".urlencode($str);
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} else {
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$str = str_replace(' ', '_', $search_url_array[0]);
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$link = "?searchresult=2&sstring=".urlencode($str);
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}
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return $link;
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}
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// make date and time for "last modified by... on ..."-string
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function get_page_modified($page_modified_when)
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{
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global $TEXT;
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if($page_modified_when > 0)
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{
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$date = gmdate(DATE_FORMAT, $page_modified_when+TIMEZONE);
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$time = gmdate(TIME_FORMAT, $page_modified_when+TIMEZONE);
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} else {
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$date = $TEXT['UNKNOWN'].' '.$TEXT['DATE'];
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$time = $TEXT['UNKNOWN'].' '.$TEXT['TIME'];
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}
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return array($date, $time);
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}
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// make username and displayname for "last modified by... on ..."-string
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function get_page_modified_by($page_modified_by, $users)
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{
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global $TEXT;
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// check for existing user-id
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if(!isset($users[$page_modified_by]))
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{
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$page_modified_by = 0;
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}
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$username = $users[$page_modified_by]['username'];
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$displayname = $users[$page_modified_by]['display_name'];
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return array($username, $displayname);
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}
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// checks if _all_ searchwords matches
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function is_all_matched($text, $search_words)
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{
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$all_matched = true;
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foreach ($search_words AS $word)
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{
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if(!preg_match('/'.$word.'/ui', $text))
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{
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$all_matched = false;
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break;
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}
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}
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return $all_matched;
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}
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// checks if _any_ of the searchwords matches
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function is_any_matched($text, $search_words)
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{
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$any_matched = false;
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$word = '('.implode('|', $search_words).')';
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if(preg_match('/'.$word.'/ui', $text))
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{
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$any_matched = true;
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}
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return $any_matched;
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}
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// collects the matches from text in excerpt_array
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function get_excerpts($text, $search_words, $max_excerpt_num)
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{
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$match_array = array();
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$excerpt_array = array();
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$word = '('.implode('|', $search_words).')';
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//Filter droplets from the page data
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preg_match_all('~\[\[(.*?)\]\]~', $text, $matches);
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foreach ($matches[1] as $match)
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{
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$text = str_replace('[['.$match.']]', '', $text);
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}
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// Build the regex-string
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if(strpos(strtoupper(PHP_OS), 'WIN')===0) // windows -> see below
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{
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$str1=".!?;";
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$str2=".!?;";
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} else { // linux & Co.
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// start-sign: .!?; + INVERTED EXCLAMATION MARK - INVERTED QUESTION MARK - DOUBLE EXCLAMATION MARK - INTERROBANG - EXCLAMATION QUESTION MARK - QUESTION EXCLAMATION MARK - DOUBLE QUESTION MARK - HALFWIDTH IDEOGRAPHIC FULL STOP - IDEOGRAPHIC FULL STOP - IDEOGRAPHIC COMMA
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$str1=".!?;"."\xC2\xA1"."\xC2\xBF"."\xE2\x80\xBC"."\xE2\x80\xBD"."\xE2\x81\x89"."\xE2\x81\x88"."\xE2\x81\x87"."\xEF\xBD\xA1"."\xE3\x80\x82"."\xE3\x80\x81";
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// stop-sign: .!?; + DOUBLE EXCLAMATION MARK - INTERROBANG - EXCLAMATION QUESTION MARK - QUESTION EXCLAMATION MARK - DOUBLE QUESTION MARK - HALFWIDTH IDEOGRAPHIC FULL STOP - IDEOGRAPHIC FULL STOP - IDEOGRAPHIC COMMA
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$str2=".!?;"."\xE2\x80\xBC"."\xE2\x80\xBD"."\xE2\x81\x89"."\xE2\x81\x88"."\xE2\x81\x87"."\xEF\xBD\xA1"."\xE3\x80\x82"."\xE3\x80\x81";
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}
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$regex='/(?:^|\b|['.$str1.'])([^'.$str1.']{0,200}?'.$word.'[^'.$str2.']{0,200}(?:['.$str2.']|\b|$))/uis';
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if(version_compare(PHP_VERSION, '4.3.3', '>=') &&
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strpos(strtoupper(PHP_OS), 'WIN')!==0
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) { // this may crash windows server, so skip if on windows
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// jump from match to match, get excerpt, stop if $max_excerpt_num is reached
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$last_end = 0; $offset = 0;
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while(preg_match('/'.$word.'/uis', $text, $match_array, PREG_OFFSET_CAPTURE, $last_end))
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{
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$offset = ($match_array[0][1]-206 < $last_end)?$last_end:$match_array[0][1]-206;
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if(preg_match($regex, $text, $matches, PREG_OFFSET_CAPTURE, $offset))
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{
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$last_end = $matches[1][1]+strlen($matches[1][0])-1;
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if(!preg_match('/\b[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\./', $matches[1][0])) // skip excerpts with email-addresses
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{
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$excerpt_array[] = trim($matches[1][0]);
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}
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if(count($excerpt_array)>=$max_excerpt_num)
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{
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$excerpt_array = array_unique($excerpt_array);
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if(count($excerpt_array) >= $max_excerpt_num) { break; }
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}
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} else { // problem: preg_match failed - can't find a start- or stop-sign
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$last_end += 201; // jump forward and try again
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}
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}
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} else { // compatible, but may be very slow with large pages
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if(preg_match_all($regex, $text, $match_array))
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{
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foreach($match_array[1] AS $string)
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{
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if(!preg_match('/\b[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\./', $string)) // skip excerpts with email-addresses
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{
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$excerpt_array[] = trim($string);
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}
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}
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}
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}
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return $excerpt_array;
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}
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// makes excerpt_array a string ready to print out
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function prepare_excerpts($excerpt_array, $search_words, $max_excerpt_num)
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{
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// excerpts: text before and after a single excerpt, html-tag for markup
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$EXCERPT_BEFORE = '... ';
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$EXCERPT_AFTER = ' ...<br />';
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$EXCERPT_MARKUP_START = '<b>';
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$EXCERPT_MARKUP_END = '</b>';
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// remove duplicate matches from $excerpt_array, if any.
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$excerpt_array = array_unique($excerpt_array);
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// use the first $max_excerpt_num excerpts only
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if(count($excerpt_array) > $max_excerpt_num)
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{
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$excerpt_array = array_slice($excerpt_array, 0, $max_excerpt_num);
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}
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// prepare search-string
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$string = "(".implode("|", $search_words).")";
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// we want markup on search-results page,
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// but we need some 'magic' to prevent <br />, <b>... from being highlighted
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$excerpt = '';
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foreach($excerpt_array as $str)
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{
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$excerpt .= '#,,#'.preg_replace("/($string)/iu","#,,,,#$1#,,,,,#",$str).'#,,,#';
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}
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$excerpt = str_replace(array('&','<','>','"','\'',"\xC2\xA0"), array('&','<','>','"',''',' '), $excerpt);
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$excerpt = str_replace(array('#,,,,#','#,,,,,#'), array($EXCERPT_MARKUP_START,$EXCERPT_MARKUP_END), $excerpt);
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$excerpt = str_replace(array('#,,#','#,,,#'), array($EXCERPT_BEFORE,$EXCERPT_AFTER), $excerpt);
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// prepare to write out
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if(DEFAULT_CHARSET != 'utf-8')
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{
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$excerpt = umlauts_to_entities($excerpt, 'UTF-8');
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}
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return $excerpt;
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}
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// work out what the link-anchor should be
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function make_url_target($page_link_target, $text, $search_words)
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{
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// 1. e.g. $page_link_target=="&monthno=5&year=2007" - module-dependent target. Do nothing.
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// 2. $page_link_target=="#!wb_section_..." - the user wants the section-target, so do nothing.
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// 3. $page_link_target=="#wb_section_..." - try to find a better target, use the section-target as fallback.
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// 4. $page_link_target=="" - do nothing
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if(version_compare(PHP_VERSION, '4.3.3', ">=") && substr($page_link_target,0,12)=='#wb_section_')
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{
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$word = '('.implode('|', $search_words).')';
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preg_match('/'.$word.'/ui', $text, $match, PREG_OFFSET_CAPTURE);
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if($match && is_array($match[0]))
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{
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$x=$match[0][1]; // position of first match
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// is there an anchor nearby?
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if(preg_match_all('/<(?:[^>]+id|\s*a[^>]+name)\s*=\s*"(.*)"/iU', substr($text,0,$x), $match, PREG_OFFSET_CAPTURE))
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{
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$anchor='';
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foreach($match[1] AS $array)
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{
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if($array[1] > $x)
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{
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break;
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}
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$anchor = $array[0];
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}
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if($anchor != '')
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{
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| 220 |
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$page_link_target = '#'.$anchor;
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}
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}
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| 223 |
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}
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| 224 |
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} elseif(substr($page_link_target,0,13)=='#!wb_section_') {
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$page_link_target = '#'.substr($page_link_target, 2);
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}
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// since wb 2.7.1 the section-anchor is configurable - SEC_ANCHOR holds the anchor name
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if(substr($page_link_target,0,12)=='#wb_section_')
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| 230 |
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{
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| 231 |
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if(defined('SEC_ANCHOR') && SEC_ANCHOR!='')
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| 232 |
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{
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| 233 |
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$sec_id = substr($page_link_target, 12);
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| 234 |
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$page_link_target = '#'.SEC_ANCHOR.$sec_id;
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| 235 |
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} else { // section-anchors are disabled
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| 236 |
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$page_link_target = '';
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| 237 |
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}
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| 238 |
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}
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| 239 |
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| 240 |
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return $page_link_target;
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| 241 |
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}
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| 242 |
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| 243 |
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// wrapper for compatibility with old print_excerpt()
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| 244 |
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function print_excerpt($page_link, $page_link_target, $page_title, $page_description, $page_modified_when, $page_modified_by, $text, $max_excerpt_num, $func_vars, $pic_link="")
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| 245 |
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{
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$mod_vars = array(
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'page_link' => $page_link,
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| 248 |
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'page_link_target' => $page_link_target,
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'page_title' => $page_title,
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'page_description' => $page_description,
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'page_modified_when' => $page_modified_when,
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'page_modified_by' => $page_modified_by,
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'text' => $text,
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'max_excerpt_num' => $max_excerpt_num,
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'pic_link' => $pic_link
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);
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| 257 |
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print_excerpt2($mod_vars, $func_vars);
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| 258 |
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}
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| 259 |
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| 260 |
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/* These functions can be used in module-supplied search_funcs
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| 261 |
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* -----------------------------------------------------------
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| 262 |
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* print_excerpt2() - the main-function to use in all search_funcs
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| 263 |
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* print_excerpt() - wrapper for compatibility-reason. Use print_excerpt2() instead.
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| 264 |
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* list_files_dirs() - lists all files and dirs below a given directory
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| 265 |
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* clear_filelist() - keeps only wanted or removes unwanted entries in file-list.
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| 266 |
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*/
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| 267 |
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| 268 |
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// prints the excerpts for one section
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| 269 |
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function print_excerpt2($mod_vars, $func_vars)
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| 270 |
|
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{
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1262
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extract($func_vars, EXTR_PREFIX_ALL, 'func');
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| 272 |
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extract($mod_vars, EXTR_PREFIX_ALL, 'mod');
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| 273 |
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global $TEXT;
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| 274 |
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// check $mod_...vars
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if(!isset($mod_page_link)) { $mod_page_link = $func_page_link; }
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| 276 |
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if(!isset($mod_page_link_target)) { $mod_page_link_target = ''; }
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| 277 |
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if(!isset($mod_page_title)) { $mod_page_title = $func_page_title; }
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| 278 |
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if(!isset($mod_page_description)) { $mod_page_description = $func_page_description; }
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| 279 |
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if(!isset($mod_page_modified_when)) { $mod_page_modified_when = $func_page_modified_when; }
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| 280 |
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if(!isset($mod_page_modified_by)) { $mod_page_modified_by = $func_page_modified_by; }
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| 281 |
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if(!isset($mod_text)) { $mod_text = ''; }
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| 282 |
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if(!isset($mod_max_excerpt_num)) { $mod_max_excerpt_num = $func_default_max_excerpt; }
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| 283 |
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if(!isset($mod_pic_link)) { $mod_pic_link = ''; }
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| 284 |
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if(!isset($mod_no_highlight)) { $mod_no_highlight = false; }
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| 285 |
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if(!isset($func_enable_flush)) { $func_enable_flush = false; } // set this in db: wb_search.cfg_enable_flush [READ THE DOC BEFORE]
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| 286 |
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if(isset($mod_ext_charset))
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{
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| 288 |
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$mod_ext_charset = strtolower($mod_ext_charset);
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} else {
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| 290 |
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$mod_ext_charset = '';
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}
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| 293 |
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if($mod_text == "") // nothing to do
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{ return false; }
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| 295 |
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| 296 |
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if($mod_no_highlight) // no highlighting
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{ $mod_page_link_target = "&nohighlight=1".$mod_page_link_target; }
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// clean the text:
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$mod_text = preg_replace('#<(!--.*--|style.*</style|script.*</script)>#iU', ' ', $mod_text);
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$mod_text = preg_replace('#<(br( /)?|dt|/dd|/?(h[1-6]|tr|table|p|li|ul|pre|code|div|hr))[^>]*>#i', '.', $mod_text);
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// $mod_text = preg_replace('/(\v\s?|\s\s)+/', ' ', $mod_text);
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$mod_text = preg_replace('/\s\./', '.', $mod_text);
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if($mod_ext_charset!='') { // data from external database may have a different charset
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require_once(WB_PATH.'/framework/functions-utf8.php');
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switch($mod_ext_charset) {
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case 'latin1':
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case 'cp1252':
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$mod_text = charset_to_utf8($mod_text, 'CP1252');
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break;
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| 310 |
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case 'cp1251':
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$mod_text = charset_to_utf8($mod_text, 'CP1251');
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break;
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| 313 |
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case 'latin2':
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| 314 |
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$mod_text = charset_to_utf8($mod_text, 'ISO-8859-2');
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| 315 |
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break;
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| 316 |
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case 'hebrew':
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| 317 |
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$mod_text = charset_to_utf8($mod_text, 'ISO-8859-8');
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| 318 |
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break;
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| 319 |
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case 'greek':
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| 320 |
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$mod_text = charset_to_utf8($mod_text, 'ISO-8859-7');
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| 321 |
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break;
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| 322 |
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case 'latin5':
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| 323 |
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$mod_text = charset_to_utf8($mod_text, 'ISO-8859-9');
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| 324 |
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break;
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| 325 |
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case 'latin7':
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| 326 |
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$mod_text = charset_to_utf8($mod_text, 'ISO-8859-13');
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| 327 |
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break;
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| 328 |
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case 'utf8':
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| 329 |
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default:
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| 330 |
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$mod_text = charset_to_utf8($mod_text, 'UTF-8');
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| 331 |
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}
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| 332 |
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} else {
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| 333 |
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$mod_text = entities_to_umlauts($mod_text, 'UTF-8');
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| 334 |
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}
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| 335 |
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$anchor_text = $mod_text; // make an copy containing html-tags
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| 336 |
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$mod_text = strip_tags($mod_text);
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| 337 |
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$mod_text = str_replace(array('>','<','&','"',''',''',' '), array('>','<','&','"','\'','\'',"\xC2\xA0"), $mod_text);
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| 338 |
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$mod_text = '.'.trim($mod_text).'.';
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| 339 |
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// Do a fast scan over $mod_text first. This will speedup things a lot.
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| 340 |
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if($func_search_match == 'all') {
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| 341 |
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if(!is_all_matched($mod_text, $func_search_words))
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| 342 |
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return false;
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| 343 |
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}
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| 344 |
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elseif(!is_any_matched($mod_text, $func_search_words)) {
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| 345 |
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return false;
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| 346 |
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}
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| 347 |
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// search for an better anchor - this have to be done before strip_tags() (may fail if search-string contains <, &, amp, gt, lt, ...)
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| 348 |
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$anchor = make_url_target($mod_page_link_target, $anchor_text, $func_search_words);
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| 349 |
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| 350 |
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// make the link from $mod_page_link, add anchor
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| 351 |
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$link = "";
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| 352 |
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$link = page_link($mod_page_link);
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| 353 |
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if(strpos($mod_page_link, 'http:')===FALSE)
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| 354 |
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$link .= make_url_searchstring($func_search_match, $func_search_url_array);
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| 355 |
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$link .= $anchor;
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| 356 |
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| 357 |
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// now get the excerpt
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| 358 |
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$excerpt = "";
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| 359 |
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$excerpt_array = array();
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| 360 |
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if($mod_max_excerpt_num > 0) {
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| 361 |
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if(!$excerpt_array = get_excerpts($mod_text, $func_search_words, $mod_max_excerpt_num)) {
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| 362 |
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return false;
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| 363 |
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}
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| 364 |
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$excerpt = prepare_excerpts($excerpt_array, $func_search_words, $mod_max_excerpt_num);
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| 365 |
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}
|
| 366 |
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| 367 |
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// handle thumbs - to deactivate this look in the module's search.php: $show_thumb (or maybe in the module's settings-page)
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| 368 |
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if($mod_pic_link != "") {
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| 369 |
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$excerpt = '<table class="excerpt_thumb" width="100%" cellspacing="0" cellpadding="0" border="0"><tbody><tr><td width="110" valign="top"><a href="'.$link.'"><img src="'.WB_URL.'/'.MEDIA_DIRECTORY.$mod_pic_link.'" alt="" /></a></td><td>'.$excerpt.'</td></tr></tbody></table>';
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| 370 |
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}
|
| 371 |
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| 372 |
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// print-out the excerpt
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| 373 |
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$vars = array();
|
| 374 |
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$values = array();
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| 375 |
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list($date, $time) = get_page_modified($mod_page_modified_when);
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| 376 |
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list($username, $displayname) = get_page_modified_by($mod_page_modified_by, $func_users);
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| 377 |
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$vars = array('[LINK]', '[TITLE]', '[DESCRIPTION]', '[USERNAME]','[DISPLAY_NAME]','[DATE]','[TIME]','[TEXT_LAST_UPDATED_BY]','[TEXT_ON]','[EXCERPT]');
|
| 378 |
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$values = array(
|
| 379 |
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$link,
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| 380 |
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$mod_page_title,
|
| 381 |
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$mod_page_description,
|
| 382 |
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$username,
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| 383 |
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$displayname,
|
| 384 |
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$date,
|
| 385 |
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$time,
|
| 386 |
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$TEXT['LAST_UPDATED_BY'],
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| 387 |
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$TEXT['ON'],
|
| 388 |
|
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$excerpt
|
| 389 |
|
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);
|
| 390 |
|
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echo str_replace($vars, $values, $func_results_loop_string);
|
| 391 |
|
|
if($func_enable_flush) { // ATTN: this will bypass output-filters and may break template-layout or -filters
|
| 392 |
|
|
ob_flush();flush();
|
| 393 |
|
|
}
|
| 394 |
|
|
return true;
|
| 395 |
|
|
}
|
| 396 |
|
|
|
| 397 |
|
|
// list all files and dirs in $dir (recursive), omits '.', '..', and hidden files/dirs
|
| 398 |
|
|
// returns an array of two arrays ($files[] and $dirs[]).
|
| 399 |
|
|
// usage: list($files,$dirs) = list_files_dirs($directory);
|
| 400 |
|
|
// $depth: get subdirs (true/false)
|
| 401 |
|
|
function list_files_dirs($dir, $depth=true, $files=array(), $dirs=array()) {
|
| 402 |
|
|
$dh=opendir($dir);
|
| 403 |
|
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while(($file = readdir($dh)) !== false) {
|
| 404 |
|
|
if($file{0} == '.' || $file == '..') {
|
| 405 |
|
|
continue;
|
| 406 |
|
|
}
|
| 407 |
|
|
if(is_dir($dir.'/'.$file)) {
|
| 408 |
|
|
if($depth) {
|
| 409 |
|
|
$dirs[] = $dir.'/'.$file;
|
| 410 |
|
|
list($files, $dirs) = list_files_dirs($dir.'/'.$file, $depth, $files, $dirs);
|
| 411 |
|
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}
|
| 412 |
|
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} else {
|
| 413 |
|
|
$files[] = $dir.'/'.$file;
|
| 414 |
|
|
}
|
| 415 |
|
|
}
|
| 416 |
|
|
closedir($dh);
|
| 417 |
|
|
natcasesort($files);
|
| 418 |
|
|
natcasesort($dirs);
|
| 419 |
|
|
return(array($files, $dirs));
|
| 420 |
|
|
}
|
| 421 |
|
|
|
| 422 |
|
|
// keeps only wanted entries in array $files. $str have to be an eregi()-compatible regex
|
| 423 |
1301
|
Luisehahne
|
/*
|
| 424 |
|
|
function clear_filelist($files, $str, $keep=true)
|
| 425 |
|
|
{
|
| 426 |
1262
|
Luisehahne
|
// options: $keep = true : remove all non-matching entries
|
| 427 |
|
|
// $keep = false : remove all matching entries
|
| 428 |
|
|
$c_filelist = array();
|
| 429 |
|
|
if($str == '')
|
| 430 |
|
|
return $files;
|
| 431 |
1301
|
Luisehahne
|
foreach($files as $file)
|
| 432 |
|
|
{
|
| 433 |
|
|
if($keep)
|
| 434 |
|
|
{
|
| 435 |
|
|
if(eregi($str, $file))
|
| 436 |
|
|
{
|
| 437 |
1262
|
Luisehahne
|
$c_filelist[] = $file;
|
| 438 |
|
|
}
|
| 439 |
|
|
} else {
|
| 440 |
1301
|
Luisehahne
|
if(!eregi($str, $file))
|
| 441 |
|
|
{
|
| 442 |
1262
|
Luisehahne
|
$c_filelist[] = $file;
|
| 443 |
|
|
}
|
| 444 |
|
|
}
|
| 445 |
|
|
}
|
| 446 |
|
|
return($c_filelist);
|
| 447 |
|
|
}
|
| 448 |
1301
|
Luisehahne
|
*/
|
| 449 |
|
|
?>
|