Zig Requires Chilkat v11.0.0+

Parsing a Multipart/Digest Email

See more Email Object Examples

This example demonstrates how to parse a multipart/digest email. An email parsed by this sample could have a MIME structure as follows:

multipart/mixed
    text/plain
    text/plain
    multipart/digest
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
    text/plain

Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    const eml_path = "qa_data/eml/multipart_digest.eml";

    const email = try chilkat.Email.init();
    defer email.deinit();

    // For this example, we'll load the email from a .eml.
    // The email could alternatively be loaded as a result of downloading from an IMAP or POP3 server..

    email.loadEml(eml_path) catch {
        std.debug.print("{s}\n", .{try email.getLastErrorText(alloc)});
        return;
    };

    const num_digests = email.getNumDigests();
    std.debug.print("num digests = {d}\n", .{num_digests});

    const e_digest = try chilkat.Email.init();
    defer e_digest.deinit();
    var i: i32 = 0;
    while (i < num_digests) {
        email.getDigestEmail(i, e_digest) catch {};
        std.debug.print("{d}:{s}, {s}\n", .{ i, try e_digest.getFromAddress(alloc), try e_digest.getSubject(alloc) });
        if (e_digest.getHeaderField(alloc, "Message")) |m| {
            std.debug.print("    Message = {s}\n", .{m});
        } else |_| {}

        i = i + 1;
    }
}