1 files changed, 22 insertions, 23 deletions
diff --git a/vendor/sabre/vobject/lib/Property/Text.php b/vendor/sabre/vobject/lib/Property/Text.php
index bb7ab34ee..47a86ccc9 100644
--- a/vendor/sabre/vobject/lib/Property/Text.php
+++ b/vendor/sabre/vobject/lib/Property/Text.php
@@ -213,16 +213,16 @@ class Text extends Property {
         $val = $this->getParts();
 
         if (isset($this->minimumPropertyValues[$this->name])) {
-            $val = array_pad($val, $this->minimumPropertyValues[$this->name], '');
+            $val = \array_pad($val, $this->minimumPropertyValues[$this->name], '');
         }
 
         // Imploding multiple parts into a single value, and splitting the
         // values with ;.
-        if (count($val) > 1) {
+        if (\count($val) > 1) {
             foreach ($val as $k => $v) {
-                $val[$k] = str_replace(';', '\;', $v);
+                $val[$k] = \str_replace(';', '\;', $v);
             }
-            $val = implode(';', $val);
+            $val = \implode(';', $val);
         } else {
             $val = $val[0];
         }
@@ -242,7 +242,7 @@ class Text extends Property {
 
         // If the resulting value contains a \n, we must encode it as
         // quoted-printable.
-        if (strpos($val, "\n") !== false) {
+        if (\strpos($val, "\n") !== false) {
 
             $str .= ';ENCODING=QUOTED-PRINTABLE:';
             $lastLine = $str;
@@ -252,40 +252,39 @@ class Text extends Property {
             // encode newlines for us. Specifically, the \r\n sequence must in
             // vcards be encoded as =0D=OA and we must insert soft-newlines
             // every 75 bytes.
-            for ($ii = 0;$ii < strlen($val);$ii++) {
-                $ord = ord($val[$ii]);
+            for ($ii = 0;$ii < \strlen($val);$ii++) {
+                $ord = \ord($val[$ii]);
                 // These characters are encoded as themselves.
                 if ($ord >= 32 && $ord <= 126) {
                     $lastLine .= $val[$ii];
                 } else {
-                    $lastLine .= '=' . strtoupper(bin2hex($val[$ii]));
+                    $lastLine .= '=' . \strtoupper(\bin2hex($val[$ii]));
                 }
-                if (strlen($lastLine) >= 75) {
+                if (\strlen($lastLine) >= 75) {
                     // Soft line break
                     $out .= $lastLine . "=\r\n ";
                     $lastLine = null;
                 }
 
             }
-            if (!is_null($lastLine)) $out .= $lastLine . "\r\n";
+            if (!\is_null($lastLine)) $out .= $lastLine . "\r\n";
             return $out;
 
         } else {
             $str .= ':' . $val;
-            $out = '';
-            while (strlen($str) > 0) {
-                if (strlen($str) > 75) {
-                    $part = mb_strcut($str, 0, 75, 'utf-8');
-                    $out .= $part . "\r\n";
-                    $str = ' ' . substr($str, strlen($part));
-                } else {
-                    $out .= $str . "\r\n";
-                    $str = '';
-                    break;
-                }
-            }
 
-            return $out;
+            $str = \preg_replace(
+                '/(
+                    (?:^.)?         # 1 additional byte in first line because of missing single space (see next line)
+                    .{1,74}         # max 75 bytes per line (1 byte is used for a single space added after every CRLF)
+                    (?![\x80-\xbf]) # prevent splitting multibyte characters
+                )/x',
+                "$1\r\n ",
+                $str
+            );
+
+            // remove single space after last CRLF
+            return \substr($str, 0, -1);
 
         }