Chunk

Break textual input into sortable chunks.

Documentation

type Chunk = Either Int ByteString

A chunk is either a pure integral value, or a string that might contain digits, letters and other characters.

When preparing strings for natural comparison, they are first broken into several chunks, which can then be compared and ordered "naturally".

toChunks :: ByteString -> [Chunk]

Turn a string into a list of Chunks.

 toChunks "a12x.txt" = [S "a", N 12, S "x.txt"]
 toChunks "7" `compare` toChunks "10" = LT
 toChunks "a7.txt" `compare` toChunks "a10.txt" = LT
 toChunks "7a.txt" `compare` toChunks "10a.txt" = LT