Zig

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

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

    // 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).
    const sb = try chilkat.StringBuilder.init();
    defer sb.deinit();
    sb.loadFile("qa_data/message.eml", "utf-8") catch {
        std.debug.print("{s}\n", .{try sb.getLastErrorText(alloc)});
        return;
    };

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

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