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Plugin enhancements.

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git-svn-id: https://develop.svn.wordpress.org/trunk@1081 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Matt Mullenweg
2004-04-16 02:24:37 +00:00
parent f0f4a17c94
commit 6b991e154c
3 changed files with 18 additions and 124 deletions
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111
wp-includes/functions.php
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@@ -1162,113 +1162,6 @@ function remove_action($tag, $function_to_remove, $priority = 10) {
remove_filter($tag, $function_to_remove, $priority);
}
/* Highlighting code c/o Ryan Boren */
function get_search_query_terms($engine = 'google') {
global $s, $s_array;
$referer = urldecode($_SERVER[HTTP_REFERER]);
$query_array = array();
switch ($engine) {
case 'google':
// Google query parsing code adapted from Dean Allen's
// Google Hilite 0.3. http://textism.com
$query_terms = preg_replace('/^.*q=([^&]+)&?.*$/i','$1', $referer);
$query_terms = preg_replace('/\'|"/', '', $query_terms);
$query_array = preg_split ("/[\s,\+\.]+/", $query_terms);
break;
case 'lycos':
$query_terms = preg_replace('/^.*query=([^&]+)&?.*$/i','$1', $referer);
$query_terms = preg_replace('/\'|"/', '', $query_terms);
$query_array = preg_split ("/[\s,\+\.]+/", $query_terms);
break;
case 'yahoo':
$query_terms = preg_replace('/^.*p=([^&]+)&?.*$/i','$1', $referer);
$query_terms = preg_replace('/\'|"/', '', $query_terms);
$query_array = preg_split ("/[\s,\+\.]+/", $query_terms);
break;
case 'wordpress':
// Check the search form vars if the search terms
// aren't in the referer.
if ( ! preg_match('/^.*s=/i', $referer)) {
if (isset($s_array)) {
$query_array = $s_array;
} else if (isset($s)) {
$query_array = array($s);
}
break;
}
$query_terms = preg_replace('/^.*s=([^&]+)&?.*$/i','$1', $referer);
$query_terms = preg_replace('/\'|"/', '', $query_terms);
$query_array = preg_split ("/[\s,\+\.]+/", $query_terms);
break;
}
return $query_array;
}
function is_referer_search_engine($engine = 'google') {
$siteurl = get_settings('siteurl');
$referer = urldecode($_SERVER['HTTP_REFERER']);
//echo "referer is: $referer<br />";
if ( ! $engine ) {
return 0;
}
switch ($engine) {
case 'google':
if (preg_match('/^http:\/\/w?w?w?\.?google.*/i', $referer)) {
return 1;
}
break;
case 'lycos':
if (preg_match('/^http:\/\/search\.lycos.*/i', $referer)) {
return 1;
}
break;
case 'yahoo':
if (preg_match('/^http:\/\/search\.yahoo.*/i', $referer)) {
return 1;
}
break;
case 'wordpress':
if (preg_match("#^$siteurl#i", $referer)) {
return 1;
}
break;
}
return 0;
}
function hilite($text) {
$search_engines = array('wordpress', 'google', 'lycos', 'yahoo');
foreach ($search_engines as $engine) {
if ( is_referer_search_engine($engine)) {
$query_terms = get_search_query_terms($engine);
foreach ($query_terms as $term) {
if (!empty($term) && $term != ' ') {
if (!preg_match('/<.+>/',$text)) {
$text = preg_replace('/(\b'.$term.'\b)/i','<span class="hilite">$1</span>',$text);
} else {
$text = preg_replace('/(?<=>)([^<]+)?(\b'.$term.'\b)/i','$1<span class="hilite">$2</span>',$text);
}
}
}
break;
}
}
return $text;
}
/* rewrite_rules
* Construct rewrite matches and queries from permalink structure.
* matches - The name of the match array to use in the query strings.
@@ -1450,4 +1343,8 @@ function check_comment($author, $email, $url, $comment, $user_ip) {
return true;
}
function wp_head() {
do_action('wp_head', '');
}
?>