Context Search by Olivier de Broqueville is open source and licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. You may use the source code under the terms of the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license (or any later version of the same license) with one exception: the code cannot be used for commercial purposes unless the author of Context Search gives his written permission.
Based on a work at https://github.com/odebroqueville/contextSearch.