Lua

Get an Email's MIME into a StringBuilder

Demonstrates the Chilkat Email.GetMimeSb method, which returns the email as MIME text (header, body or bodies, related items, and all attachments) by appending it to a StringBuilder object. This example builds a message and appends its MIME to a StringBuilder.

Background: This is a StringBuilder-based alternative to GetMime, which returns a plain string. Writing into a StringBuilder is more efficient when the MIME is large or when you intend to further manipulate it — searching, replacing, or accumulating additional text — without creating many intermediate string copies.

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Lua

local chilkat = require("chilkat")

-- Demonstrates the GetMimeSb method, which returns the email as MIME text (headers, bodies,
-- related items, and attachments), appending it to a StringBuilder object.

local email = chilkat.Email.new()
email.subject = "GetMimeSb example"
email.from = "alice@example.com"
email:add_to("Bob", "bob@example.com")
email.body = "Hello!"

-- Append the complete MIME to a StringBuilder.
local sbMime = chilkat.StringBuilder.new()
local success = email:get_mime_sb(sbMime)
if not success then
    print(email.last_error_text)
    return
end

print(sbMime:get_as_string())