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Range::SetOps zef:Scimon last updated on 2022-10-19

NAME

Range::SetOps - Provides set operators geared to work on ranges.

SYNOPSIS

use Range::SetOps;
say 10 (elem) (1.5 .. 15.2);

DESCRIPTION

The standard Set operators work on Ranges by first converting them to lists and then applying the set operations to these lists. But Ranges can also represent a Range of possible values for which this type of comparison does not work well. The Range::SetOps module aims to provide operators based on the Set operators but geared to work on Ranges without list conversion.

IMPLEMENTED OPERATORS

The following operators have been implemented for continous numerical ranges and also tested on string and date range. They also work on Sets of Ranges like those returned by the (|) or ∪ operators.

• (elem)

• ∈

• ∉

• (cont)

• ∋

• ∌

The following operators already work for continuous Ranges as expected.

• (<=)

• ⊆

• (>=)

• ⊇

• (<)

• ⊂

• (>)

• ⊃

• ⊅

• ⊄

• ⊉

• ⊈

The following Operations will return Sets comprising one or more Ranges. When the Ranges within the Set overlap they will be combined into one larger Range.

• (|)

• ∪

• (&)

• ∩

AUTHOR

Simon Proctor [email protected]

COPYRIGHT AND LICENSE

Copyright 2018 Simon Proctor

This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.