#!/usr/bin/ruby -w
#Franklin Aquino
#Scripting languges assignment
#Asignment 12
#Ruby Asignment using String class

#method to check if palindrome
def palindrome?(str)
  str == str.reverse
end

puts "Enter First String\n"
$firstString = String.new()
$secondString = String.new()
$combinedString = String.new()
$firstString = gets.chomp
#Gets string length of entered string
$stringLength = $firstString.length
puts "Length of [" + $firstString + "] is " + $stringLength.to_s
#Display string backwards
puts "Entered string reveresed! " + $firstString.reverse
#Count number of words in string
$stringArray = $firstString.split()
puts "Number of words in string is " + $stringArray.length.to_s
#Ask for second string
puts "Enter second String"
$secondString = gets.chomp
puts "Entered second string :" + $secondString
#Add second string to First
$combinedString = $firstString.dup
puts "The two strings added together: " + $combinedString.concat($secondString)
puts $firstString
#Compare first string to second string
$stringTest = $firstString <=> $secondString
if $stringTest == 0
  puts "Two Strings are equal"
else
  puts "Strings are not equal"
end
#Checks if first string entered is palindrome
$paliTest = palindrome?($firstString)
if $paliTest == TRUE
  puts "First string is palindrome"
else
  puts "First string is not palindrome"
end
#extarct substring of first 5 characters
$firstString = $firstString[0..5]
puts "First five characters of first string: " + $firstString
#REverse the string again
puts "Substring reveresed: " + $firstString.reverse
#Convert to upper and lower first string
puts "First String in all upper: " + $firstString.upcase + " First String all lower case: " + $firstString.downcase