I initially started with this article when I first looked into the issue of regex performance https://swtch.com/~rsc/regexp/regexp1.html https://swtch.com/~rsc

I initially started with this article when I first looked into the issue of regex performance https://swtch.com/~rsc/regexp/regexp1.html https://swtch.com/~rsc/regexp/regexp1.html To generate state machines For C there is re2c http://re2c.org/ http://re2c.org/ For Go there is https://github.com/opennota/re2dfa https://github.com/opennota/re2dfa My patterns do not change that often, so I end up hand coding them. If you are looking to continue using regex for matching, I would look at using the TCL regex library as it has some optimizations that other regex libraries do not have.