Merge pull request #12 from rkukuh/dev

Add camel case extension, its test cases, and update the readme

README.md

@@ -31,6 +31,8 @@ These following methods are available for working with and manipulating `String`
 
 - [`after`](https://github.com/rkukuh/Swift-StringHelper#after)
 - [`before`](https://github.com/rkukuh/Swift-StringHelper#before)
+- [`between`](https://github.com/rkukuh/Swift-StringHelper#between)
+- [`camel case`](https://github.com/rkukuh/Swift-StringHelper#camel-case)
 
 ## Usage
 
@@ -55,3 +57,25 @@ let result = originalString.before("@")
 
 print(result) // john
 ```
+
+### `between`
+
+The `before` helper returns the portion of a string between two values.
+
+```swift
+let originalString = "[email protected]"
+let result = originalString.between("john@", and: ".com")
+
+print(result) // Optional("apple")
+```
+
+### `camel case`
+
+The `camelCased` helper converts the given string to camelCaseLikeThis.
+
+```swift
+var originalString = "Everyone CAN Code"
+var result = originalString.camelCased()
+
+print(result) // everyoneCanCode
+```

Sources/SwiftStringHelper/StringCamelCaseExtensions.swift

@@ -0,0 +1,19 @@
+//
+//  File.swift
+//  
+//
+//  Created by R. Kukuh on 27/03/23.
+//
+
+import Foundation
+
+public extension String {
+    func camelCased() -> String {
+        let words = self.components(separatedBy: CharacterSet.alphanumerics.inverted).filter { !$0.isEmpty }
+
+        let firstWord = words.first?.lowercased() ?? ""
+        let remainingWords = words.dropFirst().map { $0.capitalized }
+
+        return ([firstWord] + remainingWords).joined()
+    }
+}

Tests/SwiftStringHelperTests/StringCamelCasedTests.swift

@@ -0,0 +1,31 @@
+//
+//  StringCamelCasedTests.swift
+//  
+//
+//  Created by R. Kukuh on 27/03/23.
+//
+
+import XCTest
+@testable import SwiftStringHelper
+
+class StringCamelCasedTests: XCTestCase {
+
+    func testCamelCased() {
+        let originalString = "hello_world"
+        let result = originalString.camelCased()
+        XCTAssertEqual(result, "helloWorld", "The camel-cased string should be 'helloWorld'")
+    }
+
+    func testCamelCasedWithMultipleSeparators() {
+        let originalString = "hello-world_example@text"
+        let result = originalString.camelCased()
+        XCTAssertEqual(result, "helloWorldExampleText", "The camel-cased string should be 'helloWorldExampleText'")
+    }
+
+    func testCamelCasedWhenEmpty() {
+        let originalString = ""
+        let result = originalString.camelCased()
+        XCTAssertEqual(result, "", "The camel-cased string should be an empty string when the original string is empty")
+    }
+
+}