changing a variable using gets.chomp()

Question

im trying to write to a file using this code:

  puts "-------------------- TEXT-EDITOR --------------------"
def tor(old_text)
  old_text = gets.chomp #
end


$epic=""

def torr(input)

  tore=  $epic += input + ", "

File.open("tor.txt", "w") do |write|
  write.puts tore
  end
end



loop do
  output = tor(output)
  torr(output)
end

i have read the ultimate guide to ruby programming and it says if i want to make a new line using in the file im writing to using File.open i must use "line one", "line two how can i make this happend using gets.chomp()? try my code and you will see what i mean thank you.

What is your code supposed to do? It would also help if your methods had more meaningful names — Frederick Cheung, Jan 09 '13 at 18:22
my code is supposed to make a new file and when you type something it would make a new line for each time you press enter / make a new sentence. for example when you do `File.open("tor.txt", "w") do |write| write.puts "line one", "line two" end end` it makes a new line i wanna know how i can do this with gets.chomp() it doesent make a new line :( no matter what i type in my gets.chomp() do you understand what i mean? — TorB, Jan 09 '13 at 18:25

Charles Caldwell · Accepted Answer · 2013-01-09T19:08:58.313

The gets method will bring in any amount of text but it will terminate when you hit 'Enter' (or once the STDIN receives \n). This input record separator is stored in the global variable $/. If you change the input separator in your script, the gets method will actually trade the 'Enter' key for whatever you changed the global variable to.

$/ = 'EOF' # Or any other string
lines = gets.chomp
> This is
> multilined
> textEOF
lines #=> 'This is\nmultilined\ntext'

Enter whatever you want and then type 'EOF' at the end. Once it 'sees' EOF, it'll terminate the gets method. The chomp method will actually strip off the string 'EOF' from the end.

Then write this to your text file and the \n will translate into new lines.

File.open('newlines.txt', 'w') {|f| f.puts lines}

newlines.txt:

This is
multilined
text

score 0 · Answer 2 · answered Jan 09 '13 at 18:21

If you dont use .chomp() the \n character will be added whenever you write a new line, if you save this to the file it also will have a new line. .chomp() removes those escape characters from the end of the input.

If this doesnt answer your question, i am sorry i dont understand it.

changing a variable using gets.chomp()

2 Answers2