Lightweight markup processor to produce HTML, LaTeX, and more.
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README.md

About

Title: MultiMarkdown
Author: Fletcher T. Penney
Date: 2018-09-01
Copyright: Copyright © 2016 - 2018 Fletcher T. Penney.
Version: 6.4.0

master branch: Build Status
develop branch: Build Status

An Announcement!

MultiMarkdown v6 is finally here! If you want more information about testing, see DevelopmentNotes.

If you want to more know about the differences from v5, see the QuickStart guide.

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


## The MIT License ##

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


## Revised BSD License ##

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above
      copyright notice, this list of conditions and the following
      disclaimer in the documentation and/or other materials provided
      with the distribution.
    * Neither the name of the <organization> nor the
      names of its contributors may be used to endorse or promote
      products derived from this software without specific prior
      written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES LOSS OF USE, DATA, OR
PROFITS OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.