102 lines
3.5 KiB
Swift
102 lines
3.5 KiB
Swift
// The MIT License (MIT)
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// Copyright © 2017 Ivan Varabei (varabeis@icloud.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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import Foundation
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import UIKit
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extension String {
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var digits: String {
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return components(separatedBy: CharacterSet.decimalDigits.inverted).joined()
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}
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mutating func dropLast(substring: String) {
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if self.hasSuffix(substring) {
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self = String(dropLast(substring.count))
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}
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}
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mutating func dropFirst(substring: String) {
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if self.hasPrefix(substring) {
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self = String(dropFirst(substring.count))
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}
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}
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func uppercasedFirstLetter() -> String {
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let lowercaseSctring = self.lowercased()
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return lowercaseSctring.prefix(1).uppercased() + lowercaseSctring.dropFirst()
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}
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mutating func uppercaseFirstLetter() {
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self = self.uppercasedFirstLetter()
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}
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func removeAllSpaces() -> String {
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return self.components(separatedBy: .whitespaces).joined()
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}
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mutating func removeAllSpaces() {
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self = self.removeAllSpaces()
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}
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var isEmail: Bool {
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let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}"
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let emailTest = NSPredicate(format:"SELF MATCHES %@", emailRegEx)
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return emailTest.evaluate(with: self)
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}
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var isLink: Bool {
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if let url = URL(string: self) {
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return UIApplication.shared.canOpenURL(url)
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}
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return false
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}
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var isEmptyContent: Bool {
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return (self.removeAllSpaces() == "")
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}
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var words: [String] {
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return components(separatedBy: .punctuationCharacters).joined().components(separatedBy: .whitespaces)
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}
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func removePrefix(_ prefix: String) -> String {
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guard self.hasPrefix(prefix) else { return self }
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return String(self.dropFirst(prefix.count))
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}
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mutating func replace(_ replacingString: String, with newString: String) {
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self = self.replacingOccurrences(of: replacingString, with: newString)
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}
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func replace(_ replacingString: String, with newString: String) -> String {
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return self.replacingOccurrences(of: replacingString, with: newString)
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}
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func slice(from: String, to: String) -> String? {
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return (range(of: from)?.upperBound).flatMap { substringFrom in
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(range(of: to, range: substringFrom..<endIndex)?.lowerBound).map { substringTo in
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String(self[substringFrom..<substringTo])
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}
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}
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}
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}
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