Morse Code translator written in Ruby as solution of CodementorX Assessment.

morse.rb

class Morse
  def posibilities(signals)
    signals.include?('?') ? check_wildcard(signals) : morses["#{signals}"]
  end

  def check_wildcard(signals)
    length = signals.split('').length
    values = []
    if length.eql?(1)
      values = ["E", "T"]
    else
      indexes = []
      chars = signals.split('')
      chars.each.with_index do |char, index|
        next if char.eql?('?')
        indexes << index
      end

      morses.keys.each do |morse|
        next unless morse.length.eql?(length)
        valid = true
        indexes.each do |index|
          next if chars[index].eql?(morse.split('')[index])
          valid = false
        end
        values << morses[morse] if valid
      end
    end
    values
  end

  def morses
    {
      '.' => 'E',
      '-' => 'T',
      '..' => 'I',
      '.-' => 'A',
      '-.' => 'N',
      '--' => 'M',
      '...' => 'S',
      '..-' => 'U',
      '.-.' => 'R',
      '.--' => 'W',
      '-..' => 'D',
      '-.-' => 'K',
      '--.' => 'G',
      '---' => 'O'
    }
  end
end

Morse Code Translator

Solution written in Ruby for the below Morse Code Exercise in CodementorX Assessment.

Morse Code

Morse Code is delivered in a series signals which are referred to as dashes (-) or dots (.).
To keep things simple for the purposes of this challenge we'll only decode letters with a maximum length of three signals.

Here is the Morse Code dichotomic search table courtesy of Wikipedia

Morse Code Examples

-.- translates to K
... translates to S
.- translates to A
-- translates to M
. translates to E

Background

You've started work as morse code translator. Unfortunately some of the signals aren't as distinguishable as others and there are times where a . seems indistinguishable from -.
In these cases you write down a ? so that you can figure out what all the posibilities of that letter for that word are later.

Task

Write a function possibilities that will take a string word and return an array of possible characters that the morse code word could represent.

Examples with ?

? should return ['E','T']
?. should return ['I','N']
.? should return ['I','A']
?-? should return ['R','W','G','O']

Hi 👋 . Do you have this solution in Python?