SwiftString 是为 Swift 定制的一个轻量级字符串扩展库。这个库的灵感来自于在 StackOverflow 上搜索常见字符串操作,并希望它们能放在一个地方并有测试覆盖。
SwiftString 通过 CocoaPods 提供。要安装,请简单地添加以下行到您的 Podfile:
pod "SwiftString"
import SwiftString
between(left, right)
"<a>foo</a>".between("<a>", "</a>") // "foo"
"<a><a>foo</a></a>".between("<a>", "</a>") // "<a>foo</a>"
"<a>foo".between("<a>", "</a>") // nil
"Some strings } are very {weird}, dont you think?".between("{", "}") // "weird"
"<a></a>".between("<a>", "</a>") // nil
"<a>foo</a>".between("<a>", "<a>") // nil
camelize()
"os version".camelize() // "osVersion"
"HelloWorld".camelize() // "helloWorld"
"someword With Characters".camelize() // "somewordWithCharacters"
"data_rate".camelize() // "dataRate"
"background-color".camelize() // "backgroundColor"
capitalize()
"hello world".capitalize() // "Hello World"
chompLeft(string)
"foobar".chompLeft("foo") // "bar"
"foobar".chompLeft("bar") // "foo"
chompRight(string)
"foobar".chompRight("bar") // "foo"
"foobar".chompRight("foo") // "bar"
collapseWhitespace()
" String \t libraries are \n\n\t fun\n! ".collapseWhitespace() // "String libraries are fun !")
contains(substring)
"foobar".contains("foo") // true
"foobar".contains("bar") // true
"foobar".contains("something") // false
count(string)
"hi hi ho hey hihey".count("hi") // 3
decodeHTML()
"The Weekend ‘King Of The Fall’".decodeHTML() // "The Weekend ‘King Of The Fall’"
"<strong> 4 < 5 & 3 > 2 .</strong> Price: 12 €. @ ".decodeHTML() // "<strong> 4 < 5 & 3 > 2 .</strong> Price: 12 €. @ "
"this is so "good"".decodeHTML() // "this is so \"good\""
endsWith(suffix)
"hello world".endsWith("world") // true
"hello world".endsWith("foo") // false
ensureLeft(prefix)
"/subdir".ensureLeft("/") // "/subdir"
"subdir".ensureLeft("/") // "/subdir"
ensureRight(suffix)
"subdir/".ensureRight("/") // "subdir/"
"subdir".ensureRight("/") // "subdir/"
indexOf(substring)
"hello".indexOf("hell"), // 0
"hello".indexOf("lo"), // 3
"hello".indexOf("world") // nil
initials()
"First".initials(), // "F"
"First Last".initials(), // "FL"
"First Middle1 Middle2 Middle3 Last".initials() // "FMMML"
initialsFirstAndLast()
"First Last".initialsFirstAndLast(), // "FL"
"First Middle1 Middle2 Middle3 Last".initialsFirstAndLast() // "FL"
isAlpha()
"fdafaf3".isAlpha() // false
"afaf".isAlpha() // true
"dfdf--dfd".isAlpha() // false
isAlphaNumeric()
"afaf35353afaf".isAlphaNumeric() // true
"FFFF99fff".isAlphaNumeric() // true
"99".isAlphaNumeric() // true
"afff".isAlphaNumeric() // true
"-33".isAlphaNumeric() // false
"aaff..".isAlphaNumeric() // false
isEmpty()
" ".isEmpty() // true
"\t\t\t ".isEmpty() // true
"\n\n".isEmpty() // true
"helo".isEmpty() // false
isNumeric()
"abc".isNumeric() // false
"123a".isNumeric() // false
"1".isNumeric() // true
"22".isNumeric() // true
"33.0".isNumeric() // true
"-63.0".isNumeric() // true
join(sequence)
",".join([1,2,3]) // "1,2,3"
",".join([]) // ""
",".join(["a","b","c"]) // "a,b,c"
"! ".join(["hey","who are you?"]) // "hey! who are you?"
latinize()
"šÜįéïöç".latinize() // "sUieioc"
"crème brûlée".latinize() // "creme brulee"
lines()
"test".lines() // ["test"]
"test\nsentence".lines() // ["test", "sentence"]
"test \nsentence".lines() // ["test ", "sentence"]
pad(n, string)
"hello".pad(2) // " hello "
"hello".pad(1, "\t") // "\thello\t"
padLeft(n, string)
"hello".padLeft(10) // " hello"
"what?".padLeft(2, "!") // "!!what?"
padRight(n, string)
"hello".padRight(10) // "hello "
"hello".padRight(2, "!") // "hello!!"
startsWith(prefix)
"hello world".startsWith("hello") // true
"hello world".startsWith("foo") // false
split(separator)
"hello world".split(" ")[0] // "hello"
"hello world".split(" ")[1] // "world"
"helloworld".split(" ")[0] // "helloworld"
times(n)
"hi".times(3) // "hihihi"
" ".times(10) // " "
toBool()
"asdwads".toBool() // nil
"true".toBool() // true
"false".toBool() // false
toFloat()
"asdwads".toFloat() // nil
"2.00".toFloat() // 2.0
"2".toFloat() // 2.0
toInt()
"asdwads".toInt() // nil
"2.00".toInt() // 2
"2".toInt() // 2
toDate()
"asdwads".toDate() // nil
"2014-06-03".toDate() // NSDate
toDateTime()
"asdwads".toDateTime() // nil
"2014-06-03 13:15:01".toDateTime() // NSDate
toDouble()
"asdwads".toDouble() // nil
"2.00".toDouble() // 2.0
"2".toDouble() // 2.0
trimmedLeft()
" How are you? ".trimmedLeft() // "How are you? "
trimmedRight()
" How are you? ".trimmedRight() // " How are you?"
trimmed()
" How are you? ".trimmed() // "How are you?"
slugify()
"Global Thermonuclear Warfare".slugify() // "global-thermonuclear-warfare"
"Crème brûlée".slugify() // "creme-brulee"
stripPunctuation()
"My, st[ring] *full* of %punct)".stripPunctuation() // "My string full of punct"
substring(startIndex, length)
"hello world".substring(0, length: 1) // "h"
"hello world".substring(0, length: 11) // "hello world"
[subscript]
"hello world"[0...1] // "he"
"hello world"[0..<1] // "h"
"hello world"[0] // "h"
"hello world"[0...10] // "hello world"
Andrew Mayne, [email ; protected]
SwiftString 可在 MIT 许可证下使用。有关更多信息,请参阅 LICENSE 文件。