Warning, /pim/libksieve/src/ksievecore/scriptsparsing/autotests/data/regexp.siv is written in an unsupported language. File is not indexed.

 require "regex";
 
    # Try to catch unsolicited email.
    if anyof (
      # if a message is not to me (with optional +detail),
      not address :regex ["to", "cc", "bcc"]
        "me(\\\\+.*)?@company\\\\.com",
 
      # or the subject is all uppercase (no lowercase)
      header :regex :comparator "i;octet" "subject"
        "^[^[:lower:]]+$" ) {
 
      discard;    # junk it
    }