Zig

Serialize MIME to a StringBuilder

Demonstrates the Chilkat Mime.GetMimeSb method, which serializes the complete MIME entity and appends it to a StringBuilder. The only argument is the StringBuilder; existing content is preserved.

Background: Serializing into a StringBuilder avoids creating a new string and is convenient when you are accumulating output or building a larger document. Because it appends, you can assemble several pieces in one buffer. As with GetMime, use the BinData form for content with arbitrary binary bytes.

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

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

    // Demonstrates the Mime.GetMimeSb method, which serializes the complete MIME entity and appends
    // it to a StringBuilder.  The only argument is the StringBuilder.

    const mime = try chilkat.Mime.init();
    defer mime.deinit();

    mime.setBodyFromPlainText("Hello, this is the message body.") catch {
        std.debug.print("{s}\n", .{try mime.getLastErrorText(alloc)});
        return;
    };

    // Append the serialized MIME to a StringBuilder.  Existing content is preserved.
    const sb = try chilkat.StringBuilder.init();
    defer sb.deinit();
    mime.getMimeSb(sb) catch {
        std.debug.print("{s}\n", .{try mime.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("{s}\n", .{try sb.getAsString(alloc)});
}