ragel isn't a library. ragel takes input and turns it into a state machine. The output from ragel isn't under any specific license other than your own, see the

ragel isn't a library. ragel takes input and turns it into a state machine. The output from ragel isn't under any specific license other than your own, see the section on license on the homepage (copied below) http://www.complang.org/ragel/ http://www.complang.org/ragel/ > Note: parts of Ragel output are copied from Ragel source covered by the GNU > GPL. As a special exception to the GPL, you may use the parts of Ragel output > copied from Ragel source without restriction. The remainder of Ragel output > is derived from the input and inherits the copyright status of the input > file. Use of Ragel makes no requirements about the license of generated code. ragel is actually extremely cool and I've used it extensively in non-open source code for various things. I haven't even scratched the surface yet with how powerful it can be and I definitely want to spend more time with it.