Module: Rumoji

Extended by:
Rumoji
Included in:
Rumoji
Defined in:
lib/rumoji.rb,
lib/rumoji/emoji.rb,
lib/rumoji/version.rb,
lib/rumoji/emoji/nature.rb,
lib/rumoji/emoji/people.rb,
lib/rumoji/emoji/places.rb,
lib/rumoji/emoji/objects.rb,
lib/rumoji/emoji/symbols.rb

Defined Under Namespace

Classes: Emoji

Constant Summary collapse

VERSION = 
"0.3.0"

Instance Method Summary collapse

Instance Method Details

#decode(str) ⇒ Object

Transform a cheat-sheet code into an Emoji



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# File 'lib/rumoji.rb', line 16

def decode(str)
  str.gsub(/:(\S?\w+):/) {|sym| Emoji.find($1.intern).to_s }
end

#decode_io(readable, writeable = StringIO.new("")) ⇒ Object 



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# File 'lib/rumoji.rb', line 47

def decode_io(readable, writeable=StringIO.new(""))
  readable.each_line do |line|
    writeable.write decode(line)
  end
  writeable
end

#encode(str) ⇒ Object

Transform emoji into its cheat-sheet code



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# File 'lib/rumoji.rb', line 10

def encode(str)
  io = StringIO.new(str)
  encode_io(io).string
end

#encode_io(readable, writeable = StringIO.new("")) ⇒ Object 



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# File 'lib/rumoji.rb', line 20

def encode_io(readable, writeable=StringIO.new(""))
  codepoints = readable.each_codepoint
  previous_emoji = []

  codepoints.each_with_object(writeable) do |codepoint, writer|
    possible_emoji = Emoji.select_by_codepoint(codepoint)
    last_emoji = previous_emoji.pop

    sequence =  if last_emoji.nil? || !last_emoji.codepoints.include?(codepoint)
                  if possible_emoji.empty?
                    [codepoint].pack("U")
                  else
                    multiple_codepoint_emoji = possible_emoji.select(&:multiple?)
                    if multiple_codepoint_emoji.empty?
                      possible_emoji.first.code
                    else
                      previous_emoji.concat(multiple_codepoint_emoji) ; ""
                    end
                  end
                else
                  last_emoji.code
                end

    writer.write sequence
  end
end