The SILE Typesetter
SILE is a typesetting system. Its job is to produce beautiful printed documents.
Mon Oct 7 11:13:35 2019 - permalink -
SILE follows TeX in each of these three areas; it contains a slavish port of the TeX line-breaking algorithm which has been tested to produce exactly the same output as TeX given equivalent input. But as SILE is itself written in an interpreted language, it is very easy to extend or alter the behaviour of the SILE typesetter.