About

Title:	MultiMarkdown
Author:	Fletcher T. Penney
Date:	2017-08-15
Copyright:	Copyright © 2016 - 2017 Fletcher T. Penney.
Version:	6.2.0

master branch:
develop branch:

An Announcement!

MultiMarkdown v6 is finally here! It's technically still in "beta" as I would like to hear back from a few more users to make sure I'm not missing anything, but it has been subjected to much more rigorous testing than any previous versions of MultiMarkdown in the past. If you want more information about testing, see DevelopmentNotes. It's basically feature complete as a replacement for MMD v5, and included additional features beyond that.

Obtaining MultiMarkdown

You can download the latest installer for MacOS or Windows at Github:

https://github.com/fletcher/MultiMarkdown-6/releases

To build from source, download from Github. Then:

make release
(OR)
make debug

cd build
make

You can optionally test using the test suite:

ctest

Differences in the MultiMarkdown Syntax

MultiMarkdown v6 is mostly about making a better MMD parser, but it involves a few changes to the MultiMarkdown syntax itself.

1. Setext headers can consist of more than one line to be included in the header:

    This is
    a header
    ========
   

2. Whitespace is not allowed between the text brackets and label brackets in reference links, images, footnotes, etc. For example [foo] [bar] will no longer be the same as [foo][bar].

3. Link and image titles can be quoted with 'foo', "foo", or (foo). Link attributes can be used in both reference and inline links/images.

4. HTML elements are handled slightly differently. There is no longer a markdown="1" feature. Instead, HTML elements that are on a line by themselves will open an HTML block that will cause the rest of the "paragraph" to be treated as HTML such that Markdown will not be parsed in side of it. HTML block-level tags are even "stronger" at starting an HTML block. It is not quite as complex as the approach used in CommonMark, but is similar under most circumstances. Leaving a blank line after the opening tag will allow MultiMarkdown parsing inside of the HTML block.

   For example, this would not be parsed:

    <div>
    *foo*
    </div>
   

   But this would be:

    <div>
   
    *foo*
   
    </div>
   

5. "Malformed" reference link definitions are handled slightly differently. For example, the test suite file Reference Footnotes.text is parsed differently in compatibility mode than MMD-5. This started as a side-effect of the parsing algorithm, but I actually think it makes sense. This may or may not change in the future.

6. Table captions in MMD-6 must come immediately after the table, not before it.

7. Escaped linebreaks (\ preceding a line break) will be interpreted as <br /> (even in compatibility mode). This was previously an optional feature in MMD, but I don't see a problem with just making it default behavior.

8. Escaped spaces (\ ) will be interpreted as a non-breaking space, if the output format supports it.

9. CriticMarkup, Abbreviations, Glossary Terms, and Citations are handled slightly differently. See the QuickStart guide for more information.

10. Fenced code blocks can use leading/trailing "fences" of 3, 4, or 5 backticks in length. That should be sufficient for complex documents without requiring a more complex parser. If there is no trailing fence, then the fenced block is considered to go through the end of the document.

11. Emph and Strong parsing is conceptually the same, but the implementation is different. It is designed for speed, accuracy, and consistency. In general, it seems to handle edge cases much more reliably, but there are still a couple of situations that I would like to take into account, if possible. These are not situations that should occur often in "real life."

12. EPUB 3 output is supported without need of any external tools.

13. Internationalization support for HTML phrases, such as "see footnote". See Github for more information.

License

The `MultiMarkdown 6` project is released under the MIT License..

GLibFacade.c and GLibFacade.h are from the MultiMarkdown v4 project:

	https://github.com/fletcher/MultiMarkdown-4/

MMD 4 is released under both the MIT License and GPL.


CuTest is released under the zlib/libpng license. See CuTest.c for the
text of the license.

uthash library:
	Copyright (c) 2005-2016, Troy D. Hanson

	Licensed under Revised BSD license

miniz library:
	Copyright 2013-2014 RAD Game Tools and Valve Software
	Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC

	Licensed under the MIT license

argtable3 library:
	Copyright (C) 1998-2001,2003-2011,2013 Stewart Heitmann
	<sheitmann@users.sourceforge.net>
	All rights reserved.

	Licensed under the Revised BSD License


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