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String+IntegerRangeSubstring.swift
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String+IntegerRangeSubstring.swift
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//
// This file is part of the NineAnimator project.
//
// Copyright © 2018-2019 Marcus Zhou. All rights reserved.
//
// NineAnimator is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// NineAnimator is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with NineAnimator. If not, see <http://www.gnu.org/licenses/>.
//
import Foundation
extension String {
subscript (bounds: CountableClosedRange<Int>) -> String {
let start = index(startIndex, offsetBy: bounds.lowerBound)
let end = index(startIndex, offsetBy: bounds.upperBound)
return String(self[start...end])
}
subscript (bounds: CountableRange<Int>) -> String {
let start = index(startIndex, offsetBy: bounds.lowerBound)
let end = index(startIndex, offsetBy: bounds.upperBound)
return String(self[start..<end])
}
subscript (bounds: NSRange) -> String {
let range = Range(bounds, in: self)!
return String(self[range])
}
subscript (_ matchResult: NSTextCheckingResult, at group: Int) -> String {
return self[matchResult.range(at: group)]
}
subscript (range: PartialRangeFrom<Int>) -> String {
let startIndex = self.index(self.startIndex, offsetBy: range.lowerBound)
return String(self[startIndex..<endIndex])
}
var matchingRange: NSRange {
return NSRange(location: 0, length: utf16.count)
}
}