Two main pieces make up Iris:

1. Original C# code, and

2. The syntax definition files that were all taken from the Vim text editor. The syntax files are all in the syntax\ subdirectory and have extension ".vim".

The Vim Editor lives at http://www.vim.org. It was created by Bram Moolenaar. A large number of contributors have created the syntax files. The names of the maintainers and original authors are preserved in the files. The files are shipped verbatim as they appear in the Vim editor, except for very minor technical modifications due to limitations in our Vim script parser.

Vim Syntax Files

THE COPYRIGHT FOR VIM AND ITS SYNTAX FILES IS IN AT http://vimdoc.sourceforge.net/htmldoc/uganda.html

The two main points regarding the syntaxes are:

1) If you modify them, you must be willing to share your modifications upon request. Please read uganda.txt for details.

2) You are encouraged to donate to children in Uganda, giving to a project in which the Vim author has worked extensively. This is _not a generic charity_, but rather a small charity personally involving the author. Its website is: http://iccf-holland.org/

You can read more in our donation page.

Iris

All of the remaning work in Iris has been done from the ground up and does not involve Vim source code nor is it derived from such. We do encourage you to donate to ICCF Holland as well. Iris itself is under the license below:

Iris, Copyright (c) 2008 Gustavo G. Duarte (http://duartes.org/gustavo)

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.