From d7112bcb8203caa0d5e57aa83ccb7e4f015f7d79 Mon Sep 17 00:00:00 2001
From: stekkel <stekkel@7612ce4b-ef26-0410-bec9-ea0150e637f0>
Date: Mon, 18 Apr 2005 19:44:41 +0000
Subject: [PATCH] Fixed truncateWithEntities function which trimmed the string
 one char to early and we could end up with &nbsp instead of &nbsp;

Possibly fixed multibyte string truncate because the passed int was wrong.
It used $trim_val instead of $iTrimAt (previous $trim_at)


git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@9352 7612ce4b-ef26-0410-bec9-ea0150e637f0
---
 functions/mailbox_display.php | 70 ++++++++++++++++++-----------------
 1 file changed, 37 insertions(+), 33 deletions(-)

diff --git a/functions/mailbox_display.php b/functions/mailbox_display.php
index 497a75f2..3fc5a2b8 100644
--- a/functions/mailbox_display.php
+++ b/functions/mailbox_display.php
@@ -1083,48 +1083,52 @@ function showMessagesForMailbox($imapConnection, &$aMailbox,$aProps, &$iError) {
 
 
 /**
-* FIXME: Undocumented function
+* Truncates a string and take care of html encoded characters
+*
+* @param string  $s string to truncate
+* @param int $iTrimAt Trim at nn characters
+* @return string  Trimmed string
 */
-function truncateWithEntities($subject, $trim_at)
-{
-    $ent_strlen = strlen($subject);
-    if (($trim_at <= 0) || ($ent_strlen <= $trim_at))
-        return $subject;
-
+function truncateWithEntities($s, $iTrimAt) {
     global $languages, $squirrelmail_language;
 
-    /*
-    * see if this is entities-encoded string
-    * If so, Iterate through the whole string, find out
-    * the real number of characters, and if more
-    * than $trim_at, substr with an updated trim value.
-    */
-    $trim_val = $trim_at;
-    $ent_offset = 0;
-    $ent_loc = 0;
-    while ( $ent_loc < $trim_val && (($ent_loc = strpos($subject, '&', $ent_offset)) !== false) &&
-            (($ent_loc_end = strpos($subject, ';', $ent_loc+3)) !== false) ) {
-        $trim_val += ($ent_loc_end-$ent_loc);
-        $ent_offset  = $ent_loc_end+1;
-    }
-    if (($trim_val > $trim_at) && ($ent_strlen > $trim_val) && (strpos($subject,';',$trim_val) < ($trim_val + 6))) {
-        $i = strpos($subject,';',$trim_val);
-        if ($i) {
-            $trim_val = strpos($subject,';',$trim_val);
-        }
-    }
-    // only print '...' when we're actually dropping part of the subject
-    if ($ent_strlen <= $trim_val)
-        return $subject;
+    $ent_strlen = strlen($s);
+    if (($iTrimAt <= 0) || ($ent_strlen <= $iTrimAt))
+        return $s;
 
     if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
         function_exists($languages[$squirrelmail_language]['XTRA_CODE'] . '_strimwidth')) {
-        return call_user_func($languages[$squirrelmail_language]['XTRA_CODE'] . '_strimwidth', $subject, $trim_val);
-    }
+        return call_user_func($languages[$squirrelmail_language]['XTRA_CODE'] . '_strimwidth', $s, $iTrimAt);
+    } else {
+        /*
+        * see if this is entities-encoded string
+        * If so, Iterate through the whole string, find out
+        * the real number of characters, and if more
+        * than $iTrimAt, substr with an updated trim value.
+        */
+        $trim_val = $iTrimAt;
+        $ent_offset = 0;
+        $ent_loc = 0;
+        while ( $ent_loc < $trim_val && (($ent_loc = strpos($s, '&', $ent_offset)) !== false) &&
+                (($ent_loc_end = strpos($s, ';', $ent_loc+3)) !== false) ) {
+            $trim_val += ($ent_loc_end-$ent_loc);
+            $ent_offset  = $ent_loc_end+1;
+        }
 
-    return substr_replace($subject, '...', $trim_val);
+        if (($trim_val > $iTrimAt) && ($ent_strlen > $trim_val) && (strpos($s,';',$trim_val) < ($trim_val + 6))) {
+            $i = strpos($s,';',$trim_val);
+            if ($i !== false) {
+                $trim_val = strpos($s,';',$trim_val)+1;
+            }
+        }
+        // only print '...' when we're actually dropping part of the subject
+        if ($ent_strlen <= $trim_val)
+            return $s;
+    }
+    return substr_replace($s, '...', $trim_val);
 }
 
+
 /**
 * This should go in imap_mailbox.php
 * @param string $mailbox
-- 
2.25.1