import Foundation
/*
A Swift String is a collection of Character values.
In many cases, you can iterate directly over a String without
converting it. However, some algorithms require random access
to individual characters or an explicit array representation.
This example demonstrates how to convert a String into an
Array<Character> using a dedicated function.
*/
/*
Converts a String into an array of Character values.
Parameter text:
The source string.
Returns:
An array containing each character from the input string.
Notes:
- Swift strings are Unicode-aware.
- A Character may represent more than one Unicode scalar.
- Using Array(text) preserves Swift's correct handling of
extended grapheme clusters (such as emoji and accented
characters).
*/
func stringToCharacterArray(_ text: String) -> [Character] {
return Array(text)
}
func main() {
let text = "Hello, World!"
// Convert the string into an array of characters.
let characters = stringToCharacterArray(text)
print("Original string: \(text)")
print()
print("Character array contents:")
for (index, character) in characters.enumerated() {
print("characters[\(index)] = '\(character)'")
}
}
main()
/*
run:
Original string: Hello, World!
Character array contents:
characters[0] = 'H'
characters[1] = 'e'
characters[2] = 'l'
characters[3] = 'l'
characters[4] = 'o'
characters[5] = ','
characters[6] = ' '
characters[7] = 'W'
characters[8] = 'o'
characters[9] = 'r'
characters[10] = 'l'
characters[11] = 'd'
characters[12] = '!'
*/
