Import MD4C Markdown parser into 3rdparty

It has an MIT license and will be used to add Markdown (CommonMark)
support to QTextDocument.  Currently this is version 0.3.0 RC plus
a few more patches.

[ChangeLog][Third-Party Code] Qt Gui: Added md4c markdown parser
to src/3rdparty/md4c (MIT licensed).

Change-Id: Ie74373c89f2a30ba76ee728aee5e1ca166829f44
Reviewed-by: Lisandro Damián Nicanor Pérez Meyer <perezmeyer@gmail.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>

1 files changed, 22 insertions, 0 deletions

diff --git a/src/3rdparty/md4c/LICENSE.md b/src/3rdparty/md4c/LICENSE.md
new file mode 100644
index 0000000000..d58ef9341d
--- /dev/null
+++ b/src/3rdparty/md4c/LICENSE.md
@@ -0,0 +1,22 @@
+
+# The MIT License (MIT)
+
+Copyright © 2016-2019 Martin Mitáš
+
+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.