uc
- uc
Returns an uppercased version of EXPR. This is the internal function implementing the
\Uescape in double-quoted strings. Respects current LC_CTYPE locale ifuse localein force. See perllocale and perlunicode for more details about locale and Unicode support. It does not attempt to do titlecase mapping on initial letters. Seeucfirstfor that.If EXPR is omitted, uses
$_.

