From b442fad027a7446aaa46068ecf180bc2c35b683c Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Sun, 21 Nov 2004 20:17:44 +0000
Subject: - Patch #13263 and #13265 by arnab: added word-based truncation and
 made the comment module use it to extract subjects.

---
 includes/common.inc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'includes/common.inc')

diff --git a/includes/common.inc b/includes/common.inc
index dc72c88b9..31f3f426d 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -1722,14 +1722,19 @@ function drupal_xml_parser_create(&$data) {
  *   The string to truncate.
  * @param $len
  *   An upper limit on the returned string length.
+ * @param $wordsafe
+ *   Flag to truncate at nearest word boundary. Defaults to FALSE.
  * @return
  *   The truncated string.
  */
-function truncate_utf8($string, $len) {
+function truncate_utf8($string, $len, $wordsafe = FALSE) {
   $slen = strlen($string);
   if ($slen <= $len) {
     return $string;
   }
+  if ($wordsafe) {
+    while (($string[--$len] != ' ') && ($len > 0)) {};
+  }
   if ((ord($string[$len]) < 0x80) || (ord($string[$len]) >= 0xC0)) {
     return substr($string, 0, $len);
   }
-- 
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