function _unicode_caseflip

Helper function for case conversion of Latin-1. Used for flipping U+C0-U+DE to U+E0-U+FD and back.

2 string references to '_unicode_caseflip'
drupal_strtolower in drupal/core/includes/unicode.inc
Lowercase a UTF-8 string.
drupal_strtoupper in drupal/core/includes/unicode.inc
Uppercase a UTF-8 string.

File

drupal/core/includes/unicode.inc, line 450

Code

function _unicode_caseflip($matches) {
  return $matches[0][0] . chr(ord($matches[0][1]) ^ 32);
}