ref: 3ca96a8ecc40cf6ea628ba6d9a3bc61912c98ac6
dir: /sys/src/ape/lib/openssl/demos/b64.pl/
#!/usr/local/bin/perl
#
# Make PEM encoded data have lines of 64 bytes of data
#
while (<>)
{
if (/^-----BEGIN/ .. /^-----END/)
{
if (/^-----BEGIN/) { $first=$_; next; }
if (/^-----END/) { $last=$_; next; }
$out.=$_;
}
}
$out =~ s/\s//g;
$out =~ s/(.{64})/$1\n/g;
print "$first$out\n$last\n";