tex--xet – Bidi­rec­tional ex­ten­sion of TeX

This is a bun­dle of ex­ten­sions to TeX to pro­vide bidi­rec­tional type­set­ting; it is ex­pressed as a web change file.
Note that the TeX--XeT code has been in­cor­po­rated into e-TeX ex­ten­sions, so that en­gines in­cor­po­rat­ing the code di­rectly are rarely found nowa­days. In­deed, Knuth him­self no longer dis­tributes TeX--XeT, so it is to be con­sid­ered ob­so­lete.