The \c pattern is defined on ASCII environments this way: "control-x", where x is any character The precise effect of "\cx" is as follows: if "x" is a lower case letter, it is converted to upper case. Then bit 6 of the character (hex 40) is inverted. Thus "\cz" becomes hex 1A, but "\c{" becomes hex 3B, while "\c;" becomes hex 7B. How should this behave on EBCDIC platforms, like Perl-mvs Thanks ZA