give position info in errors for the posn and posn-bytestring wrappers
give position info in errors for the posn and posn-bytestring wrappers
beni55/alex,sol/alex,hvr/alex,simonmar/alex,simonmar/alex,alanz/Alex,sol/alex,alanz/Alex,Teino1978-Corp/Teino1978-Corp-alex,Teino1978-Corp/Teino1978-Corp-alex,beni55/alex,hvr/alex