prints a list of emoji, emoji with TPVS, emoji with EPVS

emoji_list.rb

#! /usr/bin/env ruby

class Emoji
  attr_accessor :codepoint

  def initialize(codepoint)
    @codepoint = codepoint
  end

  def to_s
    [@codepoint].pack("U*")
  end

  def to_text_s
    [@codepoint, 0xFE0E].pack("U*")
  end

  def to_emoji_s
    [@codepoint, 0xFE0F].pack("U*")
  end

  def description
    hex_codepoint = @codepoint.to_s(16)
    "U+#{hex_codepoint} http://www.fileformat.info/info/unicode/char/#{hex_codepoint}/index.htm"
  end
end

class KeycapEmoji < Emoji
  def to_s
    [codepoint, 0x20E3].pack("U*")
  end

  def to_text_s
    [codepoint, 0xFE0E, 0x20E3].pack("U*")
  end

  def to_emoji_s
    [codepoint, 0xFE0F, 0x20E3].pack("U*")
  end

  def description
    "U+#{@codepoint.to_s(16)} U+20E3 keycap emoji"
  end
end

emoji_list = []
`wget http://unicode.org/Public/emoji/4.0/emoji-data.txt -O - | grep '; Emoji                #' | cut -d ' ' -f 1`.each_line do |line|
  if line.include?('..')
    array = line.split('..').map { |e| e.hex }
    (array.first..array.last).each { |c| emoji_list << c }
  else
    emoji_list << line.hex
  end
end

emoji_list = emoji_list.map do |e|
  if e <= 0x39
    KeycapEmoji.new(e)
  else
    Emoji.new(e)
  end
end

puts "# format:\n# emoji emoji_with_TPVS emoji_with_EPVS    # description\n\n"
emoji_list.map { |e| puts "#{e.to_s} #{e.to_text_s} #{e.to_emoji_s}    # #{e.description}" }
puts "\n# total: #{emoji_list.count}"