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Eng Intern Challenge Fall - Winter 2025

Note: In order for our submission automation to function correctly:

  1. Your Github email must match the email you submitted your Application with (if your Github email is different, we recommend creating a new Github profile with the email you created your application with)
  2. Have your email set to public on your Github Profile
  3. Do not apply any labels on your PR. We will mark your PR as reviewed with a label when it has been so. Marking this yourself will cause your PR to be skipped.

Braille Translator

In this coding challenge you will create a terminal / command-line application that can translate Braille to English and vice versa.

The string to translate will be passed into your application as an argument at runtime. Your application must be smart enough to determine if the string given to it is either Braille or English and automatically convert it to the appropriate opposite.

For the purposes of this challenge Braille must be displayed as O and . where O represents a raised dot. You must include the entire English alphabet, the ability to capitalize letters, add spaces, and the numbers 0 through 9 as well.

After conversion, output the translated string--and nothing else--to the terminal.

What is Braille?

Braille (/breɪl/ BRAYL) is a tactile writing system used by people who are visually impaired. Braille characters are formed using a combination of six raised dots arranged in a 3 × 2 matrix, called the braille cell. The number and arrangement of these dots distinguishes one character from another. (via Wikipedia)

Braille Alphabet

Black dots represent raised areas

Technical Requirements

  • Translator
    • Given arguments passed into the program at runtime, determine if the given string should be translated to English or Braille.
    • For Braille, each character is stored as a series of O (the letter O) or . (a period).
    • Store Braille symbols as a 6 character string reading left to right, line by line, starting at the top left. See examples below.
    • When a Braille capital follows symbol is read, assume only the next symbol should be capitalized.
    • When a Braille number follows symbol is read, assume all following symbols are numbers until the next space symbol.
  • Braille Alphabet
    • Letters a through z
      • The ability to capitalize letters
    • Numbers 0 through 9
    • The ability to include spaces ie: multiple words

Examples

  • Launching your application with English or Braille:
    • ruby translator.rb Hello world
    • ruby translator.rb .....OO.OO..O..O..O.O.O.O.O.O.O..OO........OOO.OO..OO.O.OOO.O.O.O.OO.O..

  • Input: Hello world
  • Output: .....OO.OO..O..O..O.O.O.O.O.O.O..OO........OOO.OO..OO.O.OOO.O.O.O.OO.O..

  • Input: 42
  • Output: .O.OOOOO.O..O.O...

  • Input: .....OO.....O.O...OO...........O.OOOO.....O.O...OO....
  • Output: Abc 123

Instructions

  1. Fork this repo to your personal Github Account
  2. Clone your forked repo to begin working on the challenge locally.
  3. Create a new Branch in your repo where you will be pushing your code to.
  4. Choose which programming language you wish to complete the challenge with.
    • Navigate to the folder of that programming language and complete your work in the translator file found inside. ie: ruby/translator.rb
    • Do not edit the test file in the folder. Tests will only work as intended after you have submitted a PR.
    • You'll find a separate README.md in that folder with language specific instructions.
  5. Ensure your application is executable from the command-line by running your translator file.
  6. Feel free to run the test found in your language folder to ensure your code is correct
  7. Your application must output only the Braille/English string.
    • ie: O..... not The Braille text is: O.....

Submission

Upon completion of the challenge, create a PR of your work and compare it against the original Assessment Repo's main branch. Submit a link to your PR in the "Take Home Submission Link" which was included in the Technical Challenge email instructions.

Note: In order for our submission automation to function correctly:

  • Your Github email must match the email you submitted your Application with (if your Github email is different, we recommend creating a new Github profile with the email you created your application with)
  • Have your email set to public on your Github Profile
  • Do not apply any labels on your PR. We will mark your PR as reviewed with a label when it has been so. Marking this yourself will cause your PR to be skipped.

This repo is designed to run a unit test against your work to ensure the correct string is outputted to the console when executing your code.

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