Lua

Examing the MIME Nesting Structure

See more MIME Examples

Demonstrates the GetStructure method to examine the nesting structure of a MIME document. The MIME data file used in this example is available at MIME Sample File. Lua

local chilkat = require("chilkat")

-- This example requires the Chilkat API to have been previously unlocked.
-- See Global Unlock Sample for sample code.

local mime = chilkat.Mime.new()

local success = mime:load_mime_file("qa_data/mime/sampleMime.txt")
if not success then
    print(mime.last_error_text)
    return
end

-- Examine the structure in text format:
local txtStruct = mime:get_structure("text")
print(txtStruct)

-- The MIME structure as indented text is:
-- multipart/alternative
--     text/plain
--     multipart/related
--         text/html
--         image/jpeg
--

-- Now examine the structure in XML format:
local xmlStruct = mime:get_structure("xml")
print(xmlStruct)

-- The MIME structure as XML is:
-- <multipart-alternative>
--     <text-plain />
--     <multipart-related>
--         <text-html />
--         <image-jpeg />
--     </multipart-related>
-- </multipart-alternative>

-- --------------------------------------------------------------
-- The MIME sample file loaded at the beginning of this example
-- contains the following MIME:

-- Subject: Test email.
-- Content-Type: multipart/alternative;
--     boundary="------------DB171738719FB06D67DEBAA0"
-- MIME-Version: 1.0
--
-- --------------DB171738719FB06D67DEBAA0
-- Content-Type: text/plain; charset="utf-8"; format=flowed
-- Content-Transfer-Encoding: 7bit
--
-- This is a test.
--
-- --------------DB171738719FB06D67DEBAA0
-- Content-Type: multipart/related;
--     boundary="------------A940F1230E6F0105F03DB2CB"
--
-- --------------A940F1230E6F0105F03DB2CB
-- Content-Type: text/html; charset="utf-8"
-- Content-Transfer-Encoding: 8bit
--
-- <html><head>
-- <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
--   </head>
--   <body bgcolor="#FFFFFF" text="#000000">
--     <p>This is a test.&nbsp; <img src="cid:part1.E16AE3B4.1505C436@chilkatsoft.com" height="20" width="20"></p>
--   </body>
-- </html>
--
-- --------------A940F1230E6F0105F03DB2CB
-- Content-Type: image/jpeg; name="starfish20.jpg"
-- Content-Transfer-Encoding: base64
-- Content-ID: <part1.E16AE3B4.1505C436@chilkatsoft.com>
-- Content-Disposition: inline; filename="starfish20.jpg"
--
-- /9j/4AAQSkZJRgABAQEASABIAAD//gAmRmlsZSB3cml0dGVuIGJ5IEFkb2JlIFBob3Rvc2hvcD8g
-- NC4w/9sAQwAQCwwODAoQDg0OEhEQExgoGhgWFhgxIyUdKDozPTw5Mzg3QEhcTkBEV0U3OFBtUVdf
-- YmdoZz5NcXlwZHhcZWdj/9sAQwEREhIYFRgvGhovY0I4QmNjY2NjY2NjY2NjY2NjY2NjY2NjY2Nj
-- Y2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2Nj/8IAEQgAFAAUAwERAAIRAQMRAf/EABcAAAMBAAAA
-- AAAAAAAAAAAAAAIDBAX/xAAYAQADAQEAAAAAAAAAAAAAAAABAgMEAP/aAAwDAQACEAMQAAAB2kZY
-- NNEijWKddfTmLgALWH//xAAbEAACAgMBAAAAAAAAAAAAAAABAgMRAAQSE//aAAgBAQABBQL0XqN+
-- pM2aqJGMiqFFCyg7z//EABwRAAICAgMAAAAAAAAAAAAAAAERAAIQIQMSUf/aAAgBAwEBPwHqU5aq
-- Axx+y1tMQl4elj//xAAcEQEAAQUBAQAAAAAAAAAAAAABEQACEBIhA1H/2gAIAQIBAT8B3Bhqy7Zc
-- enyiwmGgDhiOzj//xAAdEAABAwUBAAAAAAAAAAAAAAABAAIREBIhIkFR/9oACAEBAAY/ArZyn+Cg
-- xtxWuJaoCnqDuin/xAAcEAABBAMBAAAAAAAAAAAAAAABABEhYRAxQVH/2gAIAQEAAT8hkEwPUUR9
-- DYfE4nxtRpIkBTsayuALIiuY/9oADAMBAAIAAwAAABDWPTsf/8QAGhEAAwADAQAAAAAAAAAAAAAA
-- AAEREDFBIf/aAAgBAwEBPxC0DVPcWm+Ce4OesrkE6bjH/8QAGBEBAQEBAQAAAAAAAAAAAAAAAREA
-- QRD/2gAIAQIBAT8QahMiOc8YgSrnTY3ELclHXn//xAAcEAEBAAIDAQEAAAAAAAAAAAABEQAhMUFx
-- EFH/2gAIAQEAAT8Qn3igmSZSj+c4N4zapMy9IjFV98wncN2iuLFsCEbDGxQkI6RO/n//2Q==
--
-- --------------A940F1230E6F0105F03DB2CB--
--
-- --------------DB171738719FB06D67DEBAA0--
--