Ruby code Skips A certain part of Program - ruby

Question

I am trying to run a calculator program but for some reason it is skipping some parts of the code. Here's my whole ruby codes:
# require yaml file
require 'yaml'
MESSAGES = YAML.load_file('calculator_messages.yml')
LANGUAGE = 'en'
def messages(message, lang='en')
MESSAGES[lang][message]
end
def prompt(key)
message = messages(key, LANGUAGE) # make sure the "messages" method is declared above this line
Kernel.puts("=> #{message}")
end
def integer?(input)
input.to_i.to_s == input
end
def float?(input)
input.to_f.to_s == input
end
def valid_number?(input)
integer?(input) || float?(input)
end
def operation_to_message(op)
word = case op
when '1'
'Adding'
when '2'
'Subtracting'
when '3'
'Multiplying'
when '4'
'Dividing'
end
word
end
prompt('welcome')
name = ''
loop do
name = Kernel.gets().chomp()
if name.empty?()
prompt('valid_name')
else
break
end
end
prompt("Hi #{name}!")
loop do # main loop
number1 = ''
loop do
prompt('first_number')
number1 = Kernel.gets().chomp()
if valid_number?(number1)
break
else
prompt('not_a_valid_number')
end
end
number2 = ''
loop do
prompt('second_number')
number2 = Kernel.gets().chomp()
if valid_number?(number2)
break
else
prompt('not_a_valid_number')
end
end
operator_prompt = <<-MSG
What operation would you like to perform?
1) add
2) subtract
3) multiply
4) divide
MSG
prompt(operator_prompt)
operator = ''
loop do
operator = Kernel.gets().chomp()
if %w(1 2 3 4).include?(operator)
break
else
prompt('choose_number_range')
end
end
prompt("#{operation_to_message(operator)} the two numbers")
result = case operator
when '1'
number1.to_i() + number2.to_i()
when '2'
number1.to_i() - number2.to_i()
when '3'
number1.to_i() * number2.to_i()
else
number1.to_f() / number2.to_f()
end
prompt("The answer is: #{result}")
prompt('next_step')
answer = Kernel.gets().chomp()
break unless answer.downcase().start_with?('y')
end
prompt('goodbye_msg')
Now here are the specific codes that it skips:
1. Displaying the name
prompt("Hi #{name}!")
2. Displaying the adding, subtracting etc. message
prompt("#{operation_to_message(operator)} the two numbers")
3. Finally the part where it prints the actual answer inside the result variable.
result = case operator
when '1'
number1.to_i() + number2.to_i()
when '2'
number1.to_i() - number2.to_i()
when '3'
number1.to_i() * number2.to_i()
else
number1.to_f() / number2.to_f()
end
prompt("The answer is: #{result}")
Do you have any idea why it's skipping this codes?

Answer 1

Problem: As far as I understand, your prompt message tries to translate and probably doesnt find a translation for e.g. "Hi, Felix".
You could check on this theory quickly by changing the message function:
def messages(message, lang='en')
MESSAGES[lang][message] || "NO TRANSLATION FOUND"
end
and observe the output again.
Update
As OP confirmed the theory and requested a 'solution' in the comments, the cheapest one might be this one:
def messages(message, lang='en')
# Look up translation, default to untranslated message.
MESSAGES[lang][message] || message
end