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isSubsequenceOf :: Eq a => [a] -> [a] -> BoolLambdaHack Game.LambdaHack.Core.Prelude The isSubsequenceOf function takes two lists and returns True if all the elements of the first list occur, in order, in the second. The elements do not have to occur consecutively. isSubsequenceOf x y is equivalent to x `elem` (subsequences y). Note: isSubsequenceOf is often used in infix form.
Examples
>>> "GHC" `isSubsequenceOf` "The Glorious Haskell Compiler" True
>>> ['a','d'..'z'] `isSubsequenceOf` ['a'..'z'] True
>>> [1..10] `isSubsequenceOf` [10,9..0] False
For the result to be True, the first list must be finite; for the result to be False, the second list must be finite:>>> [0,2..10] `isSubsequenceOf` [0..] True
>>> [0..] `isSubsequenceOf` [0,2..10] False
>>> [0,2..] `isSubsequenceOf` [0..] * Hangs forever*
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LambdaHack Game.LambdaHack.Core.Prelude The subsequences function returns the list of all subsequences of the argument.
Laziness
subsequences does not look ahead unless it must:>>> take 1 (subsequences undefined) [[]] >>> take 2 (subsequences ('a' : undefined)) ["","a"]Examples
>>> subsequences "abc" ["","a","b","ab","c","ac","bc","abc"]
This function is productive on infinite inputs:>>> take 8 $ subsequences ['a'..] ["","a","b","ab","c","ac","bc","abc"]
dbStateCmdSequence :: DatabaseState be -> !Seq (MigrationCommand be)beam-migrate Database.Beam.Migrate.Actions The current sequence of commands we've committed to in this state
texSequence :: Char -> Parser Stringbibtex Text.BibTeX.Parse Parse a sequence of texBlocks until the occurrence of a closing character. The closing character is not part of the result.
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bz2 Codec.Compression.BZip No documentation available.
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direct-sqlite Database.SQLite3 No documentation available.
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direct-sqlite Database.SQLite3.Bindings.Types No documentation available.
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direct-sqlite Database.SQLite3.Direct No documentation available.
decodeSequence :: (Flat (Element b), IsSequence b) => Get bflat Flat.Instances.Mono Decode an instance of IsSequence, as an array
encodeSequence :: (Flat (Element mono), MonoFoldable mono) => mono -> Encodingflat Flat.Instances.Mono Encode an instance of IsSequence, as an array