Data.ByteString.Substring

Documentation

breakSubstringLazy

Arguments

:: ByteString

needle, strict bytestring

-> ByteString

haystack, lazy bytestring

-> (ByteString, ByteString)

prepareBreakSubstring

Arguments

:: ByteString

needle

-> ByteString

first n characters in haystack, where n is length of needle

-> KarpRabinState

breakSubstringResume :: KarpRabinState -> ByteString -> KarpRabinResult

data KarpRabinState

data KarpRabinResult

Constructors

KarpRabinResultDone !Int !Int64

The first number is the index into the current chunk. The second number is the total number of characters that were consumed. Note that since these both refer to the index of the beginning of the match, the first one is allowed to be negative, but the second is not. The third item is the bytes preceeding the match location. This is provided to help streaming providers that may have already discarded the old data.

KarpRabinResultMore !KarpRabinState