ABNF.ccontent Field

[This is preliminary documentation and subject to change.]

RFC 2822 Section 3.2.3

public const string ccontent = "(?:\x01-\x08\x0B\x0C\x0E-\x1F\x7F\x21-\x27\x2A-\x5B\x5D-\x7E|[\x5C][\x01-\x09\x0B\x0C\x0E-\x7F])";