Rust

Load MIME from a StringBuilder

Demonstrates the Chilkat Mime.LoadMimeSb method, which parses complete MIME text from a StringBuilder and replaces the current MIME. The only argument is the StringBuilder.

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: When the MIME text already lives in a StringBuilder — assembled in memory, or read and lightly edited — this loads it directly without an intermediate string copy. Its parsing behavior matches LoadMime; the difference is purely the source. For content that might include arbitrary binary bytes, use the BinData loader instead.

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Rust


// Demonstrates the Mime.LoadMimeSb method, which parses complete MIME text from a StringBuilder
// and replaces the current MIME.  The only argument is the StringBuilder.

// Put the MIME text into a StringBuilder (here loaded from a file, but it could come from
// anywhere).
let sb = chilkat::StringBuilder::new();
if sb.load_file("qa_data/message.eml", "utf-8").is_err() {
    println!("{}", sb.last_error_text());
    return;
}

let mime = chilkat::Mime::new();
if mime.load_mime_sb(&sb).is_err() {
    println!("{}", mime.last_error_text());
    return;
}

println!("Content-Type: {}", mime.content_type());