Document the new cow_cookie functions

doc/src/manual/cow_cookie.asciidoc

@@ -12,10 +12,33 @@ and manipulating cookie headers.
 == Exports
 
 * link:man:cow_cookie:parse_cookie(3)[cow_cookie:parse_cookie(3)] - Parse a cookie header
+* link:man:cow_cookie:parse_set_cookie(3)[cow_cookie:parse_set_cookie(3)] - Parse a set-cookie header
+* link:man:cow_cookie:cookie(3)[cow_cookie:cookie(3)] - Generate a cookie header
 * link:man:cow_cookie:setcookie(3)[cow_cookie:setcookie(3)] - Generate a set-cookie header
 
 == Types
 
+=== cookie_attrs()
+
+[source,erlang]
+----
+cookie_attrs() :: #{
+    expires => calendar:datetime(),
+    max_age => calendar:datetime(),
+    domain => binary(),
+    path => binary(),
+    secure => true,
+    http_only => true,
+    same_site => strict | lax
+}
+----
+
+Cookie attributes parsed from the set-cookie header.
+The attributes must be passed as-is to a cookie store
+engine for processing, along with the cookie name and value.
+More information about the attributes can be found in
+https://tools.ietf.org/html/rfc6265[RFC 6265].
+
 === cookie_opts()
 
 [source,erlang]
@@ -72,6 +95,11 @@ Whether the cookie should be sent only on secure channels
 integrity of the cookie, only its confidentiality during
 transfer. By default there are no restrictions.
 
+== Changelog
+
+* *2.9*: The `cookie_attrs` type was added.
+* *1.0*: Module introduced.
+
 == See also
 
 link:man:cowlib(7)[cowlib(7)],

doc/src/manual/cow_cookie.cookie.asciidoc

@@ -0,0 +1,45 @@
+= cow_cookie:cookie(3)
+
+== Name
+
+cow_cookie:cookie - Generate a cookie header
+
+== Description
+
+[source,erlang]
+----
+cookie(Cookies) -> iolist()
+
+Cookies :: [{Name :: iodata(), Value :: iodata()}]
+----
+
+Generate a cookie header.
+
+== Arguments
+
+Cookies::
+
+A list of pairs of cookie name and value.
+
+== Return value
+
+An iolist with the generated cookie header value.
+
+== Changelog
+
+* *2.9*: Function introduced.
+
+== Examples
+
+.Generate a cookie header
+[source,erlang]
+----
+Cookie = cow_cookie:cookie([{<<"sessionid">>, ID}]).
+----
+
+== See also
+
+link:man:cow_cookie(3)[cow_cookie(3)],
+link:man:cow_cookie:parse_cookie(3)[cow_cookie:parse_cookie(3)],
+link:man:cow_cookie:parse_set_cookie(3)[cow_cookie:parse_set_cookie(3)],
+link:man:cow_cookie:setcookie(3)[cow_cookie:setcookie(3)]

doc/src/manual/cow_cookie.parse_cookie.asciidoc

@@ -45,4 +45,6 @@ Cookies = cow_cookie:parse_cookie(CookieHd).
 == See also
 
 link:man:cow_cookie(3)[cow_cookie(3)],
+link:man:cow_cookie:parse_set_cookie(3)[cow_cookie:parse_set_cookie(3)],
+link:man:cow_cookie:cookie(3)[cow_cookie:cookie(3)],
 link:man:cow_cookie:setcookie(3)[cow_cookie:setcookie(3)]

doc/src/manual/cow_cookie.parse_set_cookie.asciidoc

@@ -0,0 +1,57 @@
+= cow_cookie:parse_set_cookie(3)
+
+== Name
+
+cow_cookie:parse_set_cookie - Parse a set-cookie header
+
+== Description
+
+[source,erlang]
+----
+parse_set_cookie(SetCookie :: binary())
+    -> {ok, Name, Value, Attrs} | ignore
+
+Name  :: binary()
+Value :: binary()
+Attrs :: cow_cookie:cookie_attrs()
+----
+
+Parse a set-cookie header.
+
+== Arguments
+
+SetCookie::
+
+The set-cookie header value.
+
+== Return value
+
+An `ok` tuple with the cookie name, value and attributes
+is returned on success.
+
+An atom `ignore` is returned when the cookie has both
+an empty name and an empty value, and must be ignored.
+
+== Changelog
+
+* *2.9*: Function introduced.
+
+== Examples
+
+.Parse a cookie header
+[source,erlang]
+----
+case cow_cookie:parse_set_cookie(SetCookieHd) of
+    {ok, Name, Value, Attrs} ->
+        cookie_engine_set_cookie(Name, Value, Attrs);
+    ignore ->
+        do_nothing()
+end.
+----
+
+== See also
+
+link:man:cow_cookie(3)[cow_cookie(3)],
+link:man:cow_cookie:parse_cookie(3)[cow_cookie:parse_cookie(3)],
+link:man:cow_cookie:cookie(3)[cow_cookie:cookie(3)],
+link:man:cow_cookie:setcookie(3)[cow_cookie:setcookie(3)]

doc/src/manual/cow_cookie.setcookie.asciidoc

@@ -52,4 +52,6 @@ SetCookie = cow_cookie:setcookie(<<"sessionid">>, ID, #{
 == See also
 
 link:man:cow_cookie(3)[cow_cookie(3)],
-link:man:cow_cookie:parse_cookie(3)[cow_cookie:parse_cookie(3)]
+link:man:cow_cookie:parse_cookie(3)[cow_cookie:parse_cookie(3)],
+link:man:cow_cookie:parse_set_cookie(3)[cow_cookie:parse_set_cookie(3)],
+link:man:cow_cookie:cookie(3)[cow_cookie:cookie(3)]

src/cow_link.erl

@@ -258,7 +258,7 @@ resolve_link_test_() ->
 		fun() -> R = resolve_link(L, C, O) end} || {L, C, O, R} <- Tests].
 -endif.
 
-%% @todo This function should ideally be part of Erlang/OTP's uri_string module.
+%% @todo This function has been added to Erlang/OTP 22.3 as uri_string:resolve/2,3.
 resolve(URI, BaseURI) ->
 	case resolve1(ensure_map_uri(URI), BaseURI) of
 		TargetURI = #{path := Path0} ->