SwiftRanges provides some kinds of range that are not implemented in Swift Standard Library.
It was originally written as a part of SwiftCGIResponder.
| Name | Lower Bound | Upper Bound | Implemented in |
|---|---|---|---|
| ClosedRange | Included | Included | Swift Standard Library |
| LeftOpenRange | Excluded | Included | This Library |
| OpenRange | Excluded | Excluded | This Library |
| Range | Included | Excluded | Swift Standard Library |
| PartialRangeFrom | Included | (Pos. Inf.) | Swift Standard Library |
| PartialRangeGreaterThan | Excluded | (Pos. Inf.) | This Library |
| PartialRangeThrough | (Neg. Inf.) | Included | Swift Standard Library |
| PartialRangeUpTo | (Neg. Inf.) | Excluded | Swift Standard Library |
| UnboundedRange | (Neg. Inf.) | (Pos. Inf.) | Swift Standard Library |
AnyRange: A type-erased range.RangeDictionary: A collection likeDictionarywhose key is a range.MultipleRanges: A set that can contain multiple types of ranges.
- Swift 4.1, 4.2, 5(recommended)
- macOS or Linux
import Ranges
let leftOpenRange: LeftOpenRange<Int> = 10<..20
print(leftOpenRange.contains(10)) // -> false
print(leftOpenRange.contains(15)) // -> true
print(leftOpenRange.contains(20)) // -> true
let openRange: OpenRange<Int> = 10<..<20
print(openRange.contains(10)) // -> false
print(openRange.contains(15)) // -> true
print(openRange.contains(20)) // -> false
let greaterThan: PartialRangeGreaterThan<Int> = 10<..
print(greaterThan.contains(10)) // -> false
print(greaterThan.contains(Int.max)) // -> true
print(greaterThan.overlaps(...11)) // -> true
print(greaterThan.overlaps(..<11)) // -> false
// Because there is no integer in "10<..<11"import Ranges
// Original operators are implemented for `AnyRange`.
// Some of them are below:
let leftOpenRange: LeftOpenRange<Int> = 10<..20
let typeErasedLeftOpenRange: AnyRange<Int> = 10<...20
print(leftOpenRange == typeErasedLeftOpenRange) // -> true
let openRange: OpenRange<Int> = 10<..<20
let typeErasedOpenRange: AnyRange<Int> = 19<...<30
print(openRange.overlaps(typeErasedOpenRange)) // -> false
let greaterThan: PartialRangeGreaterThan<Int> = 10<..
let typeErasedGreaterThan: AnyRange<Int> = 20<...
print(greaterThan.contains(15)) // -> true
print(typeErasedGreaterThan.contains(15)) // -> falsevar dic: RangeDictionary<Int, String> = [
1....2: "Index",
3....10: "Chapter 01",
11....40: "Chapter 02"
]
print(dic[1]) // Prints "Index"
print(dic[5]) // Prints "Chapter 01"
print(dic[15]) // Prints "Chapter 02"
print(dic[100]) // Prints "nil"
dic.insert("Prologue", forRange: 2....5)
print(dic[5]) // Prints "Prologue"import Ranges
var multi = MultipleRanges<Int>()
multi.insert(10...20)
multi.insert(30...40)
print(multi.contains(15)) // -> true
print(multi.contains(25)) // -> false
print(multi.contains(35)) // -> true
multi.subtract(15...35)
print(multi.ranges) // -> [10..<15, 35<..40]Other methods like Set are also implemented in MultipleRanges:
intersection(_:)union(_:)symmetricDifference(_:)
MIT License.
See "LICENSE.txt" for more information.