File: uudecode

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#!/usr/bin/perl
#
# uudecode:
# got from /usr/doc/perl-5.005-doc/examples/uudecode.gz
#
while (<>) {
    next unless ($mode,$file) = /^begin\s*(\d*)\s*(\S*)/;
    open(OUT,"> $file") || die "Can't create $file: $!\n";
    while (<>) {
	    last if /^end/;
	    next if /[a-z]/;
	    next unless int((((ord() - 32) & 077) + 2) / 3) ==
		    int(length() / 4);
	    print OUT unpack("u", $_);
    }
    chmod oct($mode), $file;
    eof() && die "Missing end: $file may be truncated.\n";
}