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StringUtils.swift
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// StringUtils.swift
// Pods
//
// Created by Jefferson Fernandes on 02/11/2017.
import UIKit
public enum PadType {
case left
case right
}
/**
* StringUtils
* Utilitarios para Strings
* - Dependencies:
* Exception
* extension String
*/
public class StringUtils: NSObject {
/**
* O tamanho máximo para o qual a (s) constante (s) de preenchimento pode se expandir.
*/
static private let PAD_LIMIT : Int = 8192
//MARK: - Empty
/**
Verifica se a string e vazia
- parameter str: String
- returns: Bool
*/
static public func isEmpty(str:String?) -> Bool {
guard let str = str, !str.equalsIgnoreCase(string: "nil") else { return true }
return str.isEmpty
}
/**
Verifica se a string nao e vazia
- parameter str: String
- returns: Bool
*/
static public func isNotEmpty(str:String?) -> Bool {
return !isEmpty(str: str)
}
//MARK: - Split
/**
Equivalente a explode do php
- parameter retorno: String
- parameter separator: String
- returns: [String]
*/
static public func split(value: String?, withSeparator separator: String) -> [String] {
guard let retorno = value else { return [] }
return retorno.split(separator: separator)
}
//MARK: - Padding
/**
Preenchimento de caracteres a esquerda e a direita de uma string
- exemplo:
str = xxx
toSize = 5
withString = 0
side = .left
results = 00xxx
- parameter str: String (string a ser preenchida)
- parameter toSize: String (tamanho total da caixa incluido a string )
- parameter withString: String (caracter a preencher)
- parameter side: String (.left - .right ) - lado do preenchimento
- returns: String
*/
static func pad(str: String?, toSize size: Int, withString withPad: String , side padType: PadType) throws -> String {
guard let str = str else { return "" }
guard PAD_LIMIT > size else {throw Exception.RunTimeException(message: "PAD_LIMIT excedido") }
guard size > str.characters.count else { throw Exception.RunTimeException(message: "Texto [\(str)] excedeu o tamanho: \(size)") }
var padding = String(repeating: withPad, count: size - str.characters.count)
switch padType {
case .left:
padding = padding + str
case .right:
padding = str + padding
}
return padding
}
//MARK: - Types
/**
Tranforma uma string em um int NSNumber
- parameter s: String
- returns: NSNumber?
*/
static private func getIntegerFromString(s: String) -> NSNumber? {
let formatter = NumberFormatter()
return formatter.number(from: s)?.intValue as NSNumber?
}
/**
Verifica se a String e um Int
- parameter s: String
- returns: Bool
*/
static public func isInteger(s: String?) -> Bool {
if isEmpty(str: s) { return false }
guard let s = s else { return false }
if let _ = getIntegerFromString(s: s) { return true }
return false
}
/**
Tranforma uma string em um double NSNumber
- parameter s: String
- returns: NSNumber?
*/
static private func getDoubleFromString(s: String) -> NSNumber? {
let formatter = NumberFormatter()
return formatter.number(from: s)?.doubleValue as NSNumber?
}
/**
Verifica se a String e um double
- parameter s: String
- returns: Bool
*/
static public func isDouble(s: String?) -> Bool {
if isEmpty(str: s) { return false }
guard let s = s else { return false }
if let _ = getDoubleFromString(s: s) { return true }
return false
}
//MARK: - Equals
/**
Compara duas string para ver se sao iguais
- parameter s1: String
- parameter withString: String
- returns: Bool
*/
static public func equals(s1: String?, withString s2: String?) -> Bool {
guard let s1 = s1, isNotEmpty(str: s1) else { return false }
guard let s2 = s2, isNotEmpty(str: s2) else { return false }
return s1 == s2
}
/**
Compara duas string ignorando letras maiusculas para ver se sao iguais
- parameter s1: String
- parameter withString: String
- returns: Bool
*/
static public func equalsIgnoreCase(s1: String?, withString s2: String?) -> Bool {
guard let s1 = s1, isNotEmpty(str: s1) else { return false }
guard let s2 = s2, isNotEmpty(str: s2) else { return false }
return s1.equalsIgnoreCase(string: s2)
}
/**
Compara se a string existe dentro de um array
- parameter s1: String
- parameter withArray: [String]?
- returns: Bool
*/
static public func equalsAny(s: String?, withArray strings: [String]?) -> Bool {
guard let s = s, isNotEmpty(str: s) else { return false }
guard let strings = strings, strings.count > 0 else { return false }
for s2 in strings {
let ok = equals(s1: s, withString: s2)
if ok { return true }
}
return false
}
/**
Compara se a string existe dentro de um array ignorando letras maiusculas
- parameter s1: String
- parameter withArray: [String]?
- returns: Bool
*/
static func equalsIgnoreCaseAny(s: String?, withArray strings: [String]?) -> Bool {
guard let s = s, isNotEmpty(str: s) else { return false }
guard let strings = strings, strings.count > 0 else { return false }
for s2 in strings {
let ok = equalsIgnoreCase(s1: s, withString: s2)
if ok { return true }
}
return false
}
/**
Compara se as string NAO sao iguais
- parameter s1: String
- parameter withString: [String]?
- returns: Bool
*/
static public func notEquals(s1: String?, withString s2: String) -> Bool {
return !equals(s1: s1, withString: s2)
}
//MARK: - Types
/**
Confirma que a string contem apenas letras
- parameter str: String
- returns: Bool
*/
static public func isLetters(str: String?) -> Bool {
guard let str = str, isNotEmpty(str: str) else { return false }
let letters = CharacterSet.letters
return str.rangeOfCharacter(from: letters) != nil
}
/**
Confirma que a string NÃO contem apenas letras
- parameter str: String
- returns: Bool
*/
static public func isNotLetters(str: String?) -> Bool {
return !isLetters(str: str)
}
/**
Confirma que a string contem apenas numero
- parameter str: String
- returns: Bool
*/
static public func isDigits(str: String?) -> Bool {
guard let str = str, isNotEmpty(str: str) else { return false }
let badCharacters = NSCharacterSet.decimalDigits.inverted
return (str.rangeOfCharacter(from: badCharacters) == nil)
}
/**
Confirma que a string NÃO contem apenas numero
- parameter str: String
- returns: Bool
*/
static public func isNotDigits(str: String?) -> Bool {
return !isDigits(str: str)
}
/**
Confirma que a string é alphanumerica
- parameter str: String
- returns: Bool
*/
static public func isAlphaNumeric(str: String?) -> Bool {
guard let str = str, isNotEmpty(str: str) else { return false }
return str.rangeOfCharacter(from: CharacterSet.alphanumerics.inverted) == nil && str != ""
}
/**
Confirma que a string NÃO é alphanumerica
- parameter str: String
- returns: Bool
*/
static public func isNotAlphaNumeric(str: String?) -> Bool {
return !isAlphaNumeric(str: str)
}
//MARK: - Cases
/**
Tranforma toda a String em maiuscula
- parameter str: String
- returns: string
*/
static public func toUpperCase(str: String?) -> String {
return str != nil ? str!.uppercased() : ""
}
/**
Tranforma toda a String em minuscula
- parameter str: String
- returns: string
*/
static public func toLowerCase(str: String?) -> String {
return str != nil ? str!.lowercased() : ""
}
/**
Tranforma a primeira letra da primeira palavra string em maiuscula
- parameter str: String
- returns: string
*/
static public func capitalize(str: String?) -> String {
guard let str = str, isNotEmpty(str: str) else {return "" }
return String(str.charAt(i: 0)).uppercased() + str.substringFromIndex(index: 1)
}
/**
Tranforma a primeira letra da primeira palavra string em maiuscula
- parameter str: String
- returns: string
*/
static public func capitalizeAll(str: String?) -> String {
return str != nil ? str!.capitalized : ""
}
//MARK: - Trim
/**
Remove espacos no inicio e no final da string
- parameter str: String
- returns: string
*/
static public func trim(str: String?) -> String? {
return str?.trim()
}
/**
Remove espacos no inicio,final e espacos excessivos entre as string
- parameter str: String
- returns: string
*/
static public func trimAll(str: String?) -> String? {
return str?.removeExcessiveSpaces()
}
//MARK: - Contains
/**
Verifica se um determinado caracter existe dentro de uma string : caracter lenght 1
- parameter str: String?
- parameter fromArray: [Character]?
- returns: int (posicao do caracter dentro da string)
*/
static public func indexOfAny(str: String?, fromArray searchChars: [Character]?) -> Int {
guard let str = str, isNotEmpty(str: str) else { return -1 }
guard let searchChars = searchChars, searchChars.count > 0 && searchChars.count < 2 else { return -1 }
for i in 0 ..< str.length {
let ch = str.charAt(i:i)
for j in 0 ..< searchChars.count {
if (searchChars[j] == ch) { return i }
}
}
return -1
}
/**
Verifica se determinada string contemn dentro de outra string
- parameter str: String?
- parameter fromQuery: String?
- returns: Bool
*/
static public func contains(str: String?, fromQuery query: String?) -> Bool {
guard let str = str, isNotEmpty(str: str) else { return false }
guard let query = query, isNotEmpty(str: query) else { return false }
return str.contains(query)
}
/**
Verifica se determinada string contemn dentro de outra string ignorando letras maiusculas
- parameter str: String?
- parameter fromQuery: String?
- returns: Bool
*/
static public func containsIgnoreCase(str: String?, fromQuery query: String?) -> Bool {
return contains(str: str?.uppercased(), fromQuery: query?.uppercased())
}
/**
Verifica se determinada Character contem dentro de uma string (Case Sensitive)
- parameter str: String?
- parameter fromCharacters: [Character]?
- returns: Bool
*/
static public func containsAny(str: String?, fromCharacters searchChars: [Character]?) -> Bool {
guard let str = str, isNotEmpty(str: str) else { return false }
guard let searchChars = searchChars, searchChars.count > 0 else { return false }
for i in 0 ..< str.length {
let ch = str.charAt(i: i)
for j in 0 ..< searchChars.count {
if (searchChars[j] == ch) { return true }
}
}
return false
}
/**
Verifica se qualquer um dos caracteres da string estao contidos na outra string (Case Sensitive)
- parameter str: String?
- parameter inString: String?
- returns: Bool
*/
static public func containsAny(str: String?, inString searchChars: String?) -> Bool {
guard let searchChars = searchChars, isNotEmpty(str: searchChars) else {return false}
return containsAny(str: str, fromCharacters: Array(searchChars.characters))
}
/**
Verifica se qualquer um dos caracteres do array de string estao contidos na outra string
- parameter str: String?
- parameter inString: [String]?
- returns: Bool
*/
static public func containsAny(str: String?, inStrings searchChars: [String]?) -> Bool {
guard let str = str, isNotEmpty(str: str) else { return false }
guard let searchChars = searchChars, searchChars.count > 0 else { return false }
for searchChar in searchChars {
let ok = containsAny(str: str, fromCharacters: Array(searchChar.characters))
if ok { return true }
}
return false
}
//MARK: - Replacing
/**
Subtitui todas as ocorrencias encontradas dentro de uma string por outro valor
- parameter str: String?
- parameter inQuery: String?
- parameter withReplacement: String?
- returns: String
*/
static public func replace(str: String?, inQuery repl: String?, withReplacement with: String?) -> String {
guard let text = str else { return "" }
guard let repl = repl, isNotEmpty(str: repl) else { return text }
guard let with = with else { return text }
return text.replacingOccurrences(of: repl, with: with)
}
//MARK: - Bytes
/**
Descobre o tamanho de bytes de uma determinada String UTF8
- parameter s: String?
- returns: int
*/
static public func getLengthUTF8StringInBytes(s: String?) throws -> Int {
if let s = s {
if let data = s.data(using: String.Encoding.utf8) {
return data.count
}
throw Exception.RunTimeException(message: "Unsupported Encoding")
}
return 0
}
}