 HarfBuzz

HarfBuzz (loose transliteration of Persian "harf-bāz", meaning “open type”) is a software development library for text shaping, which is the process of converting Unicode text to glyph indices and positions.The newer version, "New HarfBuzz" (2012–), targets various font technologies while the first version, "Old HarfBuzz" (2006–2012), targeted only OpenType fonts.