There is a well-explained overview of TXL and other parsing and transforms techniques in the thesis of the Ragel author: http://www.colm.net/files/colm/thursto

There is a well-explained overview of TXL and other parsing and transforms techniques in the thesis of the Ragel author: http://www.colm.net/files/colm/thurston-phdthesis.pdf http://www.colm.net/files/colm/thurston-phdthesis.pdf https://news.ycombinator.com/item?id=10841002 https://news.ycombinator.com/item?id=10841002