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span - Provide Haskell's span functionality
use span; .say for span * < 10, 2, 2, 2, 5, 5, 7, 13, 9, 6, 2, 20, 4; # (2 2 2 5 5 7) # (13 9 6 2 20 4) .say for span (* < 10, * < 20), 2, 2, 2, 5, 5, 7, 13, 9, 6, 2, 20, 4; # (2 2 2 5 5 7) # (13 9 6 2) # (20 4) .say for span Int, 2, 2, 2, 5, 5, "a", "b", "c"; # (2 2 2 5 5) # (a b c)
The span
distribution exports a single subroutine span
that mimics the functionality provided by Haskell's span functionality. But only if the core does not supply a span
subroutine already (which it may at some point in the future).
The span
subroutine takes a matcher much like grep
does, which can be a Callable
or any other object that can have the ACCEPTS
method called on it.
Elizabeth Mattijsen [email protected]
Source can be located at: https://github.com/lizmat/span . Comments and Pull Requests are welcome.
If you like this module, or what I’m doing more generally, committing to a small sponsorship would mean a great deal to me!
Copyright 2022 Elizabeth Mattijsen
This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.