Zig

Save a Related Item to Disk

Demonstrates the Chilkat Email.SaveRelatedItem method, which saves the related item at a given zero-based index to a directory. If the directory or any of its components do not exist, Chilkat creates them. This example adds a related style sheet and saves it.

Background: Related items are the inline resources (images, style sheets) an HTML email carries in its multipart/related enclosure. SaveRelatedItem writes one of them out as a file — a building block for tasks like extracting a specific embedded image, or manually unpacking a message when you want finer control than the all-in-one UnpackHtml / AspUnpack methods provide.

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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 SaveRelatedItem method, which saves the related item at a given
    // zero-based index to a directory.  If the directory (or any of its components) does not
    // exist, Chilkat creates it.

    const email = try chilkat.Email.init();
    defer email.deinit();
    email.setSubject("Save a related item");

    // Set an HTML body that references a related style sheet by name.
    email.setHtmlBody("<html><head><link rel=\"stylesheet\" href=\"styles.css\"/></head><body>Styled.</body></html>");
    email.addRelatedString2("styles.css", "body { color: navy; }", "utf-8");

    // Save the related item at index 0 into the specified directory.
    email.saveRelatedItem(0, "qa_output/related") catch {
        std.debug.print("{s}\n", .{try email.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Saved related item 0.\n", .{});

    // Note: The path "qa_output/..." is a relative local filesystem path,
    // relative to the current working directory of the running application.
}