From b524bbf2f3ff382587d8048fcd9d08f69d6d8fa3 Mon Sep 17 00:00:00 2001
From: brettp <brettp@36083f99-b078-4883-b0ff-0f9b5a30f544>
Date: Sat, 29 May 2010 02:26:01 +0000
Subject: Merged r6263:6271 to trunk.

git-svn-id: http://code.elgg.org/elgg/trunk@6285 36083f99-b078-4883-b0ff-0f9b5a30f544
---
 engine/lib/elgglib.php | 42 ++++++++++++++++++++++++++++++++++++++++--
 engine/lib/output.php  |  4 ++++
 2 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/engine/lib/elgglib.php b/engine/lib/elgglib.php
index 9d0bae0b6..7a3e47e7d 100644
--- a/engine/lib/elgglib.php
+++ b/engine/lib/elgglib.php
@@ -1670,6 +1670,36 @@ function add_to_register($register_name, $subregister_name, $subregister_value,
 	return true;
 }
 
+/**
+ * Removes what has been registered at [register_name][subregister_name]
+ *
+ * @param string $register_name The name of the top-level register
+ * @param string $subregister_name The name of the subregister
+ * @return true|false Depending on success
+ */
+function remove_from_register($register_name, $subregister_name) {
+	global $CONFIG;
+
+	if (empty($register_name) || empty($subregister_name)) {
+		return false;
+	}
+
+	if (!isset($CONFIG->registers)) {
+		return false;
+	}
+
+	if (!isset($CONFIG->registers[$register_name])) {
+		return false;
+	}
+
+	if (isset($CONFIG->registers[$register_name][$subregister_name])) {
+		unset($CONFIG->registers[$register_name][$subregister_name]);
+		return true;
+	}
+
+	return false;
+}
+
 /**
  * Returns a register object
  *
@@ -1738,6 +1768,16 @@ function add_menu($menu_name, $menu_url, $menu_children = array(), $context = ""
 	return add_to_register('menu', $menu_name, $value, $menu_children);
 }
 
+/**
+ * Removes an item from the menu register
+ *
+ * @param string $menu_name The name of the menu item
+ * @return true|false Depending on success
+ */
+function remove_menu($menu_name) {
+	return remove_from_register('menu', $menu_name);
+}
+
 /**
  * Returns a menu item for use in the children section of add_menu()
  * This is not currently used in the Elgg core
@@ -1751,7 +1791,6 @@ function menu_item($menu_name, $menu_url) {
 	return make_register_object($menu_name, $menu_url);
 }
 
-
 /**
  * Message register handling
  * If a null $message parameter is given, the function returns the array of messages so far and empties it
@@ -1762,7 +1801,6 @@ function menu_item($menu_name, $menu_url) {
  * @param bool $count Count the number of messages (default: false)
  * @return true|false|array Either the array of messages, or a response regarding whether the message addition was successful
  */
-
 function system_messages($message = null, $register = "messages", $count = false) {
 	if (!isset($_SESSION['msg'])) {
 		$_SESSION['msg'] = array();
diff --git a/engine/lib/output.php b/engine/lib/output.php
index b2eb532ca..6e861e4ac 100644
--- a/engine/lib/output.php
+++ b/engine/lib/output.php
@@ -100,6 +100,10 @@ function autop($pee, $br = 1) {
 function elgg_make_excerpt($text, $num_chars = 250) {
 	$text = trim(strip_tags($text));
 	$string_length = elgg_strlen($text);
+	
+	if ($string_length <= $num_chars) {
+		return $text;
+	}
 
 	// handle cases
 	$excerpt = elgg_substr($text, 0, $num_chars);
-- 
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