strings.php

1. 增加外掛相容性檢查函式。

   [root@mail squirrelmail-1.4.8]# diff -wuN ./functions/strings.php /var/www/squirrelmail/functions/strings.php
   --- ./functions/strings.php	2006-08-11 19:15:43.000000000 +0800
   +++ /var/www/squirrelmail/functions/strings.php	2012-05-05 09:48:51.000000000 +0800
   @@ -31,6 +31,7 @@
     * For that reason, bring in global.php AFTER we define the version strings.
     */
    require_once(SM_PATH . 'functions/global.php');
   +include_once(SM_PATH . 'plugins/compatibility/functions.php');
    
    /**
     * Wraps text at $wrap characters
   

2. 因為是中文系統，要判斷中文字數必須改用 mb_strlen 函式，若字串過長，直接截取固定長度的中文字，後加...。

   @@ -143,10 +144,11 @@
    function truncateWithEntities($s, $iTrimAt) {
        global $languages, $squirrelmail_language;
    
   -    $ent_strlen = strlen($s);
   +    $ent_strlen = mb_strlen($s,'UTF-8'); //dywang
        if (($iTrimAt <= 0) || ($ent_strlen <= $iTrimAt))
            return $s;
    
   +	return mb_substr($s,0,$iTrimAt,'UTF-8'). '...'; //dywang
    
        if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
            function_exists($languages[$squirrelmail_language]['XTRA_CODE'])) {