list-predicate

list-predicate is a library in Haskell for predicates (True/False queries) on lists.

Features

list-predicate is a new project, but the following features have been implemented and extensively tested:

• allEqual, allEqualBy: Whether all the elements of a list are equal
• sorted, sortedBy: Whether the elements are in sorted order.
• allUnique, allUniqueBy: Whether the elements are all unique.
• ascSequential, descSequential: Whether a list of Enums is ascending or descending sequentially (one-by-one)
• palindrome: Whether the list is a palindrome

Full documentation can be built with Haddock (see instructions below). Once this package is added to Hackage, documentation will be available there as well.

Installation

Build and install with Stack:

git clone https://github.com/pgujjula/list-predicate
cd list-predicate
stack build                           # build the project
stack haddock list-predicate --open   # build and view documentation
stack test                            # run the test suite

Contact

If you want to report a bug, request a feature, or suggest improvements, feel free to email me at preetham (dot) gujjula (at) protonmail (dot) com!

-- Preetham