diff options
Diffstat (limited to 'vendor/smarty/smarty/libs/plugins/shared.mb_str_replace.php')
-rw-r--r-- | vendor/smarty/smarty/libs/plugins/shared.mb_str_replace.php | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/vendor/smarty/smarty/libs/plugins/shared.mb_str_replace.php b/vendor/smarty/smarty/libs/plugins/shared.mb_str_replace.php index 226d9035d..7e85f7aae 100644 --- a/vendor/smarty/smarty/libs/plugins/shared.mb_str_replace.php +++ b/vendor/smarty/smarty/libs/plugins/shared.mb_str_replace.php @@ -44,9 +44,43 @@ if (!function_exists('smarty_mb_str_replace')) { } } } else { - $parts = mb_split(preg_quote($search), $subject) ?: array(); + $mb_reg_charset = mb_regex_encoding(); + // Check if mbstring regex is using UTF-8 + $reg_is_unicode = !strcasecmp($mb_reg_charset, "UTF-8"); + if(!$reg_is_unicode) { + // ...and set to UTF-8 if not + mb_regex_encoding("UTF-8"); + } + + // See if charset used by Smarty is matching one used by regex... + $current_charset = mb_regex_encoding(); + $convert_result = (bool)strcasecmp(Smarty::$_CHARSET, $current_charset); + if($convert_result) { + // ...convert to it if not. + $subject = mb_convert_encoding($subject, $current_charset, Smarty::$_CHARSET); + $search = mb_convert_encoding($search, $current_charset, Smarty::$_CHARSET); + $replace = mb_convert_encoding($replace, $current_charset, Smarty::$_CHARSET); + } + + $parts = mb_split(preg_quote($search), $subject ?? "") ?: array(); + // If original regex encoding was not unicode... + if(!$reg_is_unicode) { + // ...restore original regex encoding to avoid breaking the system. + mb_regex_encoding($mb_reg_charset); + } + if($parts === false) { + // This exception is thrown if call to mb_split failed. + // Usually it happens, when $search or $replace are not valid for given mb_regex_encoding(). + // There may be other cases for it to fail, please file an issue if you find a reproducible one. + throw new SmartyException("Source string is not a valid $current_charset sequence (probably)"); + } + $count = count($parts) - 1; $subject = implode($replace, $parts); + // Convert results back to charset used by Smarty, if needed. + if($convert_result) { + $subject = mb_convert_encoding($subject, Smarty::$_CHARSET, $current_charset); + } } return $subject; } |