#!/usr/bin/env swift;
/******************************************************************************
 * This program demonstrates basic string functions.
 * 
 * Copyright © 2020 Richard Lesh.  All rights reserved.
 *****************************************************************************/

import Foundation
import Utils

// Begin Main
let alphabet:String = "abcdefghijklmnopqrstuvwxyzabc"
let greekAlphabet:String = "αβγδεζηθικλμνξοπρσςτυφχψωαβγ"
let emoji:String = "😃😇🥰🤪🤑😴🤒🥵🥶🤯🥳😎😥😱😡🤬💀👽🤖😺🙈🙉🙊😃😇🥰"

print("Length: " + String(alphabet.count))
print("charAt(17): " + String(Utils.substr(alphabet, 17, 18)))
print("codePointAt(17): " + String(Utils.codepoint_at(alphabet, 17)))
print("substr(23, 26): " + Utils.substr(alphabet, 23, 26))
print("prefix(6): " + alphabet.prefix(6))
print("right_tail(6): " + Utils.substr(alphabet, 6))
print("suffix(6): " + alphabet.suffix(6))
print("find(\'def\'): " + String(alphabet.indexOf("def")))
print("find(\'def\') is not found: " + String((alphabet.indexOf("def") == -1)))
print("find(\'bug\'): " + String(alphabet.indexOf("bug")))
print("find(\'bug\') is not found: " + String((alphabet.indexOf("bug") == -1)))
print("rfind(\'abc\'): " + String(alphabet.lastIndexOf("abc")))
print("rfind(\'abc\') is not found: " + String((alphabet.lastIndexOf("abc") == -1)))
print("rfind(\'bug\'): " + String(alphabet.lastIndexOf("bug")))
print("rfind(\'bug\') is not found: " + String((alphabet.lastIndexOf("bug") == -1)))

print("Length: " + String(greekAlphabet.count))
print("charAt(17): " + String(Utils.substr(greekAlphabet, 17, 18)))
print("codePointAt(17): " + String(Utils.codepoint_at(greekAlphabet, 17)))
print("substr(23, 26): " + Utils.substr(greekAlphabet, 23, 26))
print("prefix(6): " + greekAlphabet.prefix(6))
print("right_tail(6): " + Utils.substr(greekAlphabet, 6))
print("suffix(6): " + greekAlphabet.suffix(6))
print("find(\'δεζ\'): " + String(greekAlphabet.indexOf("δεζ")))
print("find(\'δεζ\') is not found: " + String((greekAlphabet.indexOf("δεζ") == -1)))
print("find(\'bug\'): " + String(greekAlphabet.indexOf("bug")))
print("find(\'bug\') is not found: " + String((greekAlphabet.indexOf("bug") == -1)))
print("rfind(\'αβγ\'): " + String(greekAlphabet.lastIndexOf("αβγ")))
print("rfind(\'αβγ\') is not found: " + String((greekAlphabet.lastIndexOf("αβγ") == -1)))
print("rfind(\'bug\'): " + String(greekAlphabet.lastIndexOf("bug")))
print("rfind(\'bug\') is not found: " + String((greekAlphabet.lastIndexOf("bug") == -1)))

print("Length: " + String(emoji.count))
print("charAt(16): " + String(Utils.substr(emoji, 16, 17)))
print("codePointAt(16): " + String(Utils.codepoint_at(emoji, 16)))
print("substr(20, 24): " + Utils.substr(emoji, 20, 24))
print("prefix(6): " + emoji.prefix(6))
print("right_tail(6): " + Utils.substr(emoji, 6))
print("suffix(6): " + emoji.suffix(6))
print("find(\'😱😡🤬\'): " + String(emoji.indexOf("😱😡🤬")))
print("find(\'😱😡🤬\') is not found: " + String((emoji.indexOf("😱😡🤬") == -1)))
print("find(\'bug\'): " + String(emoji.indexOf("bug")))
print("find(\'bug\') is not found: " + String((emoji.indexOf("bug") == -1)))
print("rfind(\'😃😇🥰\'): " + String(emoji.lastIndexOf("😃😇🥰")))
print("rfind(\'😃😇🥰\') is not found: " + String((emoji.lastIndexOf("😃😇🥰") == -1)))
print("rfind(\'bug\'): " + String(emoji.lastIndexOf("bug")))
print("rfind(\'bug\') is not found: " + String((emoji.lastIndexOf("bug") == -1)))

exit(EXIT_SUCCESS)