Ruby: Escaping special characters in a string

Question

I am trying to write a method that is the same as mysqli_real_escape_string in PHP. It takes a string and escapes any \'dangerous\' characters. I have looked fo

Answer 1

Your pattern isn't defined correctly in your example. This is as close as I can get to your desired output.

Output

"\\\"My\\\" \\'name\\' \\*is\\* \\-john\\- \\.doe\\. \\/ok?\\/ C:\\\\Drive"

It's going to take some tweaking on your part to get it 100% but at least you can see your pattern in action now.

  def self.escape_characters_in_string(string)
    pattern = /(\'|\"|\.|\*|\/|\-|\\)/
    string.gsub(pattern){|match|"\\"  + match} # <-- Trying to take the currently found match and add a \ before it I have no idea how to do that).
  end