--- a/includes/json2.php Sat Mar 21 19:11:30 2009 -0400
+++ b/includes/json2.php Sun Mar 22 00:44:09 2009 -0400
@@ -773,6 +773,9 @@
case '\'' :
$result .= '\'';
break;
+ case 'u':
+ $result .= self::decode_unicode_byte(substr($str, $i + 1, 4));
+ break;
default:
throw new Zend_Json_Exception("Illegal escape "
. "sequence '" . $chr . "'");
@@ -904,6 +907,41 @@
return($this->_token);
}
+
+ /**
+ * Handle a Unicode byte; local to Enano.
+ * @param string 4 character byte sequence
+ * @return string
+ */
+
+ protected function decode_unicode_byte($byte)
+ {
+ if ( strlen($byte) != 4 )
+ throw new Zend_Json_Exception("Invalid Unicode sequence \\u$byte");
+
+ $value = hexdec($byte);
+
+ if ($value < 0x0080)
+ {
+ // 1 byte: 0xxxxxxx
+ $character = chr($value);
+ }
+ else if ($value < 0x0800)
+ {
+ // 2 bytes: 110xxxxx 10xxxxxx
+ $character =
+ chr((($value & 0x07c0) >> 6) | 0xc0)
+ . chr(($value & 0x3f) | 0x80);
+ }
+ else
+ {
+ // 3 bytes: 1110xxxx 10xxxxxx 10xxxxxx
+ $character =
+ chr((($value & 0xf000) >> 12) | 0xe0)
+ . chr((($value & 0x0fc0) >> 6) | 0x80)
+ . chr(($value & 0x3f) | 0x80);
+ }
+ }
}
/**