metatext/Extensions/String+Extensions.swift
2020-08-26 21:04:06 -07:00

40 lines
1.2 KiB
Swift

// Copyright © 2020 Metabolist. All rights reserved.
import UIKit
extension String {
private static let HTTPSPrefix = "https://"
func url() throws -> URL {
let url: URL?
if hasPrefix(Self.HTTPSPrefix) {
url = URL(string: self)
} else {
url = URL(string: Self.HTTPSPrefix + self)
}
guard let validURL = url else { throw URLError(.badURL) }
return validURL
}
func countEmphasizedAttributedString(count: Int, highlighted: Bool = false) -> NSAttributedString {
let countRange = (self as NSString).range(of: String.localizedStringWithFormat("%ld", count))
let attributed = NSMutableAttributedString(
string: self,
attributes: [
.font: UIFont.preferredFont(forTextStyle: .body),
.foregroundColor: highlighted ? UIColor.tertiaryLabel : UIColor.secondaryLabel
])
attributed.addAttributes(
[
.font: UIFont.preferredFont(forTextStyle: .headline),
.foregroundColor: highlighted ? UIColor.secondaryLabel : UIColor.label
],
range: countRange)
return attributed
}
}