in reply to inline replace and stdin problem

Why do you pass <> to ja_nei as a parameter, when you never touch the parameter in its body, but read from STDIN instead?
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ