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Load MIME from BinData

Demonstrates the Chilkat Mime.LoadMimeBd method, which parses complete MIME bytes from a BinData and replaces the current MIME. The only argument is the BinData.

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: This is the safest loader because it works on raw bytes: MIME can carry 8-bit content and even embedded NUL bytes that a text string would mangle, so loading from a BinData preserves the message exactly. Prefer it whenever the input is binary or of uncertain encoding — a downloaded message, a file read as bytes — over the string-based loaders.

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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.LoadMimeBd method, which parses complete MIME bytes from a BinData and
    // replaces the current MIME.  The only argument is the BinData.  This is the preferred loader
    // when the MIME may contain arbitrary 8-bit or embedded NUL bytes.

    const bd = try chilkat.BinData.init();
    defer bd.deinit();
    bd.loadFile("qa_data/message.eml") catch {
        std.debug.print("{s}\n", .{try bd.getLastErrorText(alloc)});
        return;
    };

    const mime = try chilkat.Mime.init();
    defer mime.deinit();
    mime.loadMimeBd(bd) catch {
        std.debug.print("{s}\n", .{try mime.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Content-Type: {s}\n", .{try mime.getContentType(alloc)});
}