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uc

Perl 5 version 8.9 documentation
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uc

  • uc EXPR

  • uc

    Returns an uppercased version of EXPR. This is the internal function implementing the \U escape in double-quoted strings. Respects current LC_CTYPE locale if use locale in force. See perllocale and perlunicode for more details about locale and Unicode support. It does not attempt to do titlecase mapping on initial letters. See ucfirst for that.

    If EXPR is omitted, uses $_ .