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 = 
"0.4.1"

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) || sym).to_s }
end

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



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# File 'lib/rumoji.rb', line 57

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(""))
  previous_codepoints = []

  readable.each_codepoint do |codepoint|
    possible_emoji = Emoji.select_by_codepoint(codepoint)

    sequence =  if possible_emoji.empty?
                  # If this codepoint is not part of an emoji
                  # just write it back out, along with any previously stored codepoints.
                  dump_codepoints_to_string(previous_codepoints << codepoint)
                elsif !possible_emoji.any?(&:multiple?)
                  # If this codepoint is part of an emoji, but not one
                  # that contains multiple codepoints, write out the
                  # first possiblity's cheat code and the previously stored codepoints
                  dump_codepoints_to_string(previous_codepoints) << possible_emoji.first.code
                else
                  # This codepoint is a part of an emoji with multiple
                  # codepoints, so push it onto the stack.
                  previous_codepoints.push(codepoint)
                  # Check and see if this completes the emoji, otherwise,
                  # write out an empty string.
                  if found = possible_emoji.find {|e| e.codepoints.eql?(previous_codepoints) }
                    previous_codepoints.clear and found.code
                  else
                    ""
                  end
                end

    writeable.write sequence
  end

  # Write any remaining codepoints.
  writeable.write dump_codepoints_to_string(previous_codepoints) if previous_codepoints.any?

  writeable
end