First commit

source/function/function_search.php

@@ -0,0 +1,75 @@
+<?php
+
+/**
+ *      [Discuz!] (C)2001-2099 Comsenz Inc.
+ *      This is NOT a freeware, use is subject to license terms
+ *
+ *      $Id: function_search.php 36278 2016-12-09 07:52:35Z nemohou $
+ */
+
+if(!defined('IN_DISCUZ')) {
+	exit('Access Denied');
+}
+function searchkey($keyword, $field, $returnsrchtxt = 0) {
+	$srchtxt = '';
+	if($field && $keyword) {
+		if(preg_match("(AND|\+|&|\s)", $keyword) && !preg_match("(OR|\|)", $keyword)) {
+			$andor = ' AND ';
+			$keywordsrch = '1';
+			$keyword = preg_replace("/( AND |&| )/is", "+", $keyword);
+		} else {
+			$andor = ' OR ';
+			$keywordsrch = '0';
+			$keyword = preg_replace("/( OR |\|)/is", "+", $keyword);
+		}
+		$keyword = str_replace('*', '%', addcslashes($keyword, '%_'));
+		$srchtxt = $returnsrchtxt ? $keyword : '';
+		foreach(explode('+', $keyword) as $text) {
+			$text = trim(daddslashes($text));
+			if($text) {
+				$keywordsrch .= $andor;
+				$keywordsrch .= str_replace('{text}', $text, $field);
+			}
+		}
+		$keyword = " AND ($keywordsrch)";
+	}
+	return $returnsrchtxt ? array($srchtxt, $keyword) : $keyword;
+}
+
+function highlight($text, $words, $prepend) {
+	$text = str_replace('\"', '"', $text);
+	foreach($words AS $key => $replaceword) {
+		$text = str_replace($replaceword, '<highlight>'.$replaceword.'</highlight>', $text);
+	}
+	return "$prepend$text";
+}
+
+function bat_highlight($message, $words, $color = '#ff0000') {
+	if(!empty($words)) {
+		$highlightarray = explode(' ', $words);
+		$sppos = strrpos($message, chr(0).chr(0).chr(0));
+		if($sppos !== FALSE) {
+			$specialextra = substr($message, $sppos + 3);
+			$message = substr($message, 0, $sppos);
+		}
+		bat_highlight_callback_highlight_21($highlightarray, 1);
+		$message = preg_replace_callback("/(^|>)([^<]+)(?=<|$)/sU", 'bat_highlight_callback_highlight_21', $message);
+		$message = preg_replace("/<highlight>(.*)<\/highlight>/siU", "<strong><font color=\"$color\">\\1</font></strong>", $message);
+		if($sppos !== FALSE) {
+			$message = $message.chr(0).chr(0).chr(0).$specialextra;
+		}
+	}
+	return $message;
+}
+
+function bat_highlight_callback_highlight_21($matches, $action = 0) {
+	static $highlightarray = array();
+
+	if($action == 1) {
+		$highlightarray = $matches;
+	} else {
+		return highlight($matches[2], $highlightarray, $matches[1]);
+	}
+}
+
+?>