| Portability | portable |
|---|---|
| Stability | Provisional |
| Maintainer | Daniel Fischer <daniel.is.fischer@googlemail.com> |
Data.ByteString.Search.Substitution
Description
Class for values to be substituted into strict and lazy ByteStrings
by the replace functions defined in this package.
- class Substitution a where
- substitution :: a -> [ByteString] -> [ByteString]
- prependCycle :: a -> ByteString -> ByteString
Documentation
class Substitution a whereSource
Type class of meaningful substitutions for replace functions on ByteStrings. Instances for strict and lazy ByteStrings are provided here.
Methods
substitution :: a -> [ByteString] -> [ByteString]Source
substitution transforms a value to a substitution function.
prependCycle :: a -> ByteString -> ByteStringSource
prependCycle sub lazyBS shall prepend infinitely many copies
of sub to lazyBS without entering an infinite loop in case
of an empty sub, so e.g.
prependCycle "" "ab" == "ab"
shall (quickly) evaluate to True.
For non-empty sub, the cycle shall be constructed efficiently.
Instances