Rust

Remove a Part from a Multipart MIME Entity

Demonstrates the Chilkat Mime.RemovePart method, which removes the direct child at a zero-based index. The only argument is the index; valid values are 0 through NumParts - 1. An out-of-range index returns false and changes nothing.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: Removing a part is how you strip an attachment or drop an unwanted alternative when reprocessing a message. Because parts are addressed by position, be mindful that removing one shifts the indexes of those after it — when deleting several, iterate from the last index downward so earlier removals do not renumber the parts you still intend to remove.

Chilkat Rust Downloads

Download Chilkat for Rust

Rust


let mime = chilkat::Mime::new();
if mime.load_mime_file("qa_data/multipart_message.eml").is_err() {
    println!("{}", mime.last_error_text());
    return;
}

// Remove the direct child part at a zero-based index.  Valid indexes are 0 through NumParts - 1.
// Here the last part is removed.
let last_index = mime.num_parts() - 1;
if mime.remove_part(last_index).is_err() {
    println!("{}", mime.last_error_text());
    return;
}

println!("Parts remaining: {}", mime.num_parts());