#9767: Add isSubsequenceOf to Data.List -------------------------------------+------------------------------------- Reporter: bernalex | Owner: Type: feature request | Status: new Priority: normal | Milestone: 7.10.1 Component: libraries/base | Version: 7.8.3 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Easy (less than 1 | Type of failure: hour) | None/Unknown Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Niklas Hambüchen suggested that we add the dual of subsequences, isSubsequenceOf (like isPrefixOf to inits & isSuffixOf to tails)[1]. It was a simple and noncontroversial proposal which received unanimous +1s. [1] https://www.haskell.org/pipermail/libraries/2014-November/024063.html -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9767 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler