filter -text -bytestring

filter, applied to a predicate and a list, returns the list of those elements that satisfy the predicate; i.e., > filter p xs = [ x | x <- xs, p x]
O(n). Filter all elements that satisfy some predicate.
O(n). Filter all values that satisfy some predicate. > filter (> "a") (fromList [(5,"a"), (3,"b")]) == singleton 3 "b" > filter (> "x") (fromList [(5,"a"), (3,"b")]) == empty > filter (< "a") (fromList [(5,"a"), (3,"b")]) == empty
O(n). Filter all values that satisfy the predicate. > filter (> "a") (fromList [(5,"a"), (3,"b")]) == singleton 3 "b" > filter (> "x") (fromList [(5,"a"), (3,"b")]) == empty > filter (< "a") (fromList [(5,"a"), (3,"b")]) == empty
O(n). The filter function takes a predicate p and a sequence xs and returns a sequence of those elements which satisfy the predicate.
O(n). Filter all elements that satisfy the predicate.
This generalizes the list-based filter function.
Use the filtered compression strategy for data produced by a filter (or predictor). Filtered data consists mostly of small values with a somewhat random distribution. In this case, the compression algorithm is tuned to compress them better. The effect of this strategy is to force more Huffman coding and less string matching; it is somewhat intermediate between defaultCompressionStrategy and huffmanOnlyCompressionStrategy.
O(n). Filter all keys/values that satisfy some predicate. > filterWithKey (\k _ -> k > 4) (fromList [(5,"a"), (3,"b")]) == singleton 5 "a"
O(n). Filter all keys/values that satisfy the predicate. > filterWithKey (\k _ -> k > 4) (fromList [(5,"a"), (3,"b")]) == singleton 5 "a"
Deprecated: Use filteredStrategy. CompressionStrategy constructors will be hidden in version 0.7
Direct MonadPlus equivalent of filter filter = (mfilter:: (a -> Bool) -> [a] -> [a] applicable to any MonadPlus, for example mfilter odd (Just 1) == Just 1 mfilter odd (Just 2) == Nothing
package
Pure and impure Bloom Filter implementations. Version 1.2.6.10
defaultCookieFilter is the initial cookie acceptance filter. It welcomes them all into the store :-)