Ruby Character to Unicode Converter

get_character.rb

def get_character(hexnum)
  char = ''
  char << hexnum.to_i(16)
end

get_unicode.rb

def get_unicode(char)
  (0..109_976).each do |pos|
    chr = ''
    chr << pos
    return pos.to_s(16) if chr == char
  end
end

unicode.md

Ruby Character to Unicode Converter

(and vice versa)

I 'accidentally' created this while trying to make a string representation of the first million digits of the Champernowne constant. I thought it was pretty nifty, so I'm sharing.

Ever needed to find the Unicode value of some crazy-cool character like, say, ∀? Just

puts get_unicode('∀')

and you'll find its hex value is:

2200

Or if you've always been itching to know what Unicode character is represented by hex value 2752,

puts get_character('2752')

to find out. Go ahead — play with it — you know you want to!

For some reason I have to use a smaller range than the one you give. Otherwise it works great!
Ruby 2.4 (installed from RBENV)
Ubuntu 16.04

def get_unicode(char)
  (0..55295).each do |pos|
    chr = ""
    chr << pos
    if chr == char
      puts "This is the unicode of #{char}: #{pos.to_s(16)}"
    end
  end
end