Module Email_message__.Headers

module Whitespace : sig ... end

Whitespace.t specifies how to handle header values. It is used in two contexts:

module Name : sig ... end
module Common : sig ... end

This is just a list of commonly used header field names for simple reuse

module Value : sig ... end
type t
include sig ... end
val compare : t ‑> t ‑> int
val hash_fold_t : Base.Hash.state ‑> t ‑> Base.Hash.state
val hash : t ‑> Base.Hash.hash_value
val sexp_of_t : t ‑> Base.Sexp.t
val to_string_monoid : ?⁠eol:Email_message__.Lf_or_crlf.t ‑> t ‑> Email_message.String_monoid.t

eol defaults to `LF

val to_string : ?⁠eol:Email_message__.Lf_or_crlf.t ‑> t ‑> string
val empty : t
val append : t ‑> t ‑> t
val of_list : whitespace:Whitespace.t ‑> (Name.t * Value.t) list ‑> t
val to_list : ?⁠whitespace:Whitespace.t ‑> t ‑> (Name.t * Value.t) list
val last : ?⁠whitespace:Whitespace.t ‑> t ‑> Name.t ‑> Value.t option
val find_all : ?⁠whitespace:Whitespace.t ‑> t ‑> Name.t ‑> Value.t list
val names : t ‑> Name.t list
val add : ?⁠whitespace:Whitespace.t ‑> t ‑> name:Name.t ‑> value:Value.t ‑> t
val add_at_bottom : ?⁠whitespace:Whitespace.t ‑> t ‑> name:Name.t ‑> value:Value.t ‑> t
val add_if_missing : ?⁠whitespace:Whitespace.t ‑> t ‑> name:Name.t ‑> value:Value.t ‑> t
val add_at_bottom_if_missing : ?⁠whitespace:Whitespace.t ‑> t ‑> name:Name.t ‑> value:Value.t ‑> t
val set : ?⁠whitespace:Whitespace.t ‑> t ‑> name:Name.t ‑> value:Value.t ‑> t
val set_at_bottom : ?⁠whitespace:Whitespace.t ‑> t ‑> name:Name.t ‑> value:Value.t ‑> t
val add_all : ?⁠whitespace:Whitespace.t ‑> t ‑> (Name.t * Value.t) list ‑> t
val add_all_at_bottom : ?⁠whitespace:Whitespace.t ‑> t ‑> (Name.t * Value.t) list ‑> t
val smash_and_add : ?⁠whitespace:Whitespace.t ‑> t ‑> name:Name.t ‑> value:Value.t ‑> t

If headers with this name already exist, concatenates the values for all separated by a comma, and appends the new value. Otherwise, creates a new header.

val filter : ?⁠whitespace:Whitespace.t ‑> t ‑> f:(name:Name.t ‑> value:Value.t ‑> bool) ‑> t
val map : ?⁠whitespace:Whitespace.t ‑> t ‑> f:(name:Name.t ‑> value:Value.t ‑> Value.t) ‑> t

rewrite header values, preserving original whitespace where possible.

whitespace is used to Value.of_string ?whitespace the ~value before passing to f, and again to Value.to_string ?whitespace the result. If the ~value and f ~name ~value are the same no change will be made (white space is preserved).

Particularly the following is an identity transform: map ~whitespace:`Normalize ~f:(fun ~name:_ ~value -> Value.of_string ~whitespace:`Normalize value) . By contrast the following will 'normalize' the whitespace on all headers. map ~whitespace:`Raw ~f:(fun ~name:_ ~value -> Value.of_string ~whitespace:`Normalize value) .

val map' : ?⁠whitespace:Whitespace.t ‑> t ‑> f:(name:Name.t ‑> value:Value.t ‑> Name.t * Value.t) ‑> t
module Stable : sig ... end