#29 BUG using the pattern "\s"

[bertrand db]

Tested with PCRE 6.7 -> 4.5

when replacing an utf-8 string containing the character 'à' (hex: c3a0)
With the function preg_replace, and the pattern '\s', it changes the
second byte of this character.

Using the pattern ' \t\f\r\n' which is supposed to be the same as \s it
works perfectly.

I have tried with other utf-8 characters and it seems to work.

Reproduce code:
---------------
<?
$text = utf8_encode("this is a test àt");
echo bin2hex($text)."\r\n";
$text1 = preg_replace("'([\t\f\r\n])+'", " ", $text);
echo bin2hex($text1)."\r\n";
echo $text1."\r\n";;
$text2 = preg_replace("'([\s])+'", " ", $text);
echo bin2hex($text2)."\r\n";
echo $text2;
?>

[Nobody/Anonymous]

Logged In: NO

This cannot be a PCRE bug because PCRE does not provide replacement facilities; they are left to the calling application.