get-mime-content-id
Returns the value of the Content-ID header from the stream supplied as argument, if such header exists; otherwise, it returns the value of the default argument.
Signature
get-mime-content-id(s:stream, default:string="") -> string |
Parameters
Name | Type | Description |
|---|---|---|
s | stream | Specifies the input stream. |
default | string | Specifies the value to return when Content-ID header does not exist. By default, this is an empty string. |
Examples
Let's suppose that stream msg has the header Content-ID: <root.attachment>. The expression
get-mime-content-id(msg, "") |
returns "<root.attachment>" in this case. If no such header exists, the expression above returns an empty string (the value of the second argument).