You're right! Data.ByteString.Lazy is Word8 under the covers, so wide characters are truncated. tr takes a similar short cut. Swapping to Data.Text would fix that.
Where simplicity conflicted with compatibility, I've chosen the former so far. Targeting the BSD options and behavior is another example of that. The primary goal is to feel out the data flow for each utility, rather than dig into all the edges.
Where simplicity conflicted with compatibility, I've chosen the former so far. Targeting the BSD options and behavior is another example of that. The primary goal is to feel out the data flow for each utility, rather than dig into all the edges.