diff options
Diffstat (limited to 'program')
| -rw-r--r-- | program/include/rcube_vcard.php | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/program/include/rcube_vcard.php b/program/include/rcube_vcard.php index 81d4d11ab..25041ea6a 100644 --- a/program/include/rcube_vcard.php +++ b/program/include/rcube_vcard.php @@ -465,7 +465,26 @@ class rcube_vcard private static function rfc2425_fold_callback($matches) { - return ":\n ".rtrim(chunk_split($matches[1], 72, "\n ")); + // use mb string function if available + if (function_exists('mb_ereg_replace')) { + mb_internal_encoding(RCMAIL_CHARSET); + return ":\n " . mb_ereg_replace('(.{70})', "\\1\n ", $matches[1]); + } + + // chunk_split string and avoid lines breaking multibyte characters + $c = 66; + $out = ":\n " . substr($matches[1], 0, $c); + for ($n = $c; $c < strlen($matches[1]); $c++) { + // break if length > 70 or mutlibyte character starts after position 66 + if ($n > 70 || ($n > 66 && ord($matches[1][$c]) >> 6 == 3)) { + $out .= "\n "; + $n = 0; + } + $out .= $matches[1][$c]; + $n++; + } + + return $out; } private static function rfc2425_fold($val) |