Sugar

Sugar is a beautiful syntactic sugar for String in Swift3.Idea from Ruby.Fully tested.

Three parts of String:

• Operators:subscription with Range,Tuple,Index,Key;-,*,/
• Regular Expresstion: gsub,scan,match,=~
• literal converted to resource:date,color,image,bundle path,nib and more.

Have fun with sugar!

Requirements

Swift3

Installation

Available through CocoaPods

pod 'SugarString'

Usage

import SugarString

Details

Operators

subscription with Range(start ..< end)

let str = "0123456789"
str[0 ..< 3] //=> "123"

var str = "0123456789"
str[0 ..< 3] = "abc" //=> (str = "abc3456789")

subscription with Tuple(location,length)

var str = "0123456789"
str[(5,10)] //=> "abcde"

var str = "0123456789"
str[(3,7)] = "abcde" //=> str = "012abcde"

subscription with index

let str = "0123456789"
str[0] //=> "0"

var str = "0123456789"
str[0] = "A" //=> str1 = "A123456789"

subscription with key

let url = "https://google.com?a=b&c=d"
url["a"] //=> "b"

let string = "abcdef"
string["a"] //=> nil

operator: -

"000111000" - "0" //=>"111"
"aa aabbccdd" - "aa" //=> " bbccdd"
"123" - "abc" //=> "123"

operator: *

"abc" * 3 //=> "abcabcabc"
"" * 3 //=> ""

operator: /

"1,2,3" / "," //=> ["1","2","3"]
"1 2 3" / " " //=> ["1","2","3"]
"1 2 3" / "," //=> nil

Regular Expresstion

operator: =~

let str = "0123456789\n  abcef"
str =~ "0" //=> true
str =~ "A" //=> false
str =~ "^0\\d*\\s*.*f$" //=> true

gsub

var string = "0123456789\n  abcef"
string.gsub(reg: "^0\\d*\\s*.*f$", replacement: "") //=> string = ""

string = "0123456789\n  abcef"
string.gsub(reg: "[359]", replacement: "TTT") //=> string = "012TTT4TTT678TTT\n  abcef"

scan

it returns [(String?, NSTextCheckingResult)]?

let string = "0123456789\n  abcef"
let array = string.scan(reg: "\\d") //=> array = [0,1,2,3,4,5,6,7,8,9]

match

let string = "0123456789\n  abcef"
result = string.match(reg: "\\d+") //=> "0123456789"

Resources

Some convenience functions with literal.

Date

Try to get date with 2 default formats,then try convert to TimeInterval to get date

//default format 1
"2020-01-01".date() //=> Date:2020-01-01

//default format 2
"2020-01-01 00:00:00".date() //=> Date 2020-01-01 00:00:00

//timeinterval
"1577808000".date() //=> 2020-01-01 00:00:00
"-1".date() //=> nil

//format with parameter
"2020/01/01".date(format: "yyyy/MM/dd") //=> 2020/01/01

Color

"255 255 255".color()    //=> white
"255,255,255".color()   //=> white
"#ffffff".color()       //=> white
"0x000000".color()      //=> black
"000000".color()        //=> black
"00FF00".color()        //=> green

"1255 255 255".color()  //=> nil
"-1,-1,-1".color()      //=> nil