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# frozen_string_literal: true
require_relative "emoji/constants"
module Unicode
module Emoji
autoload :INDEX, File.expand_path('emoji/index', __dir__)
%w[
EMOJI_CHAR
EMOJI_PRESENTATION
TEXT_PRESENTATION
EMOJI_COMPONENT
EMOJI_MODIFIER_BASES
EMOJI_MODIFIERS
EXTENDED_PICTOGRAPHIC
EXTENDED_PICTOGRAPHIC_NO_EMOJI
EMOJI_KEYCAPS
VALID_REGION_FLAGS
VALID_SUBDIVISIONS
RECOMMENDED_SUBDIVISION_FLAGS
RECOMMENDED_ZWJ_SEQUENCES
].each do |const_name|
autoload const_name, File.expand_path('emoji/lazy_constants', __dir__)
end
%w[
LIST
LIST_REMOVED_KEYS
].each do |const_name|
autoload const_name, File.expand_path('emoji/list', __dir__)
end
generated_constants_dirpath = File.expand_path(
EMOJI_VERSION == RbConfig::CONFIG["UNICODE_EMOJI_VERSION"] ? "emoji/generated_native/" : "emoji/generated/",
__dir__
)
%w[
REGEX
REGEX_INCLUDE_TEXT
REGEX_INCLUDE_MQE
REGEX_INCLUDE_MQE_UQE
REGEX_VALID
REGEX_VALID_INCLUDE_TEXT
REGEX_WELL_FORMED
REGEX_WELL_FORMED_INCLUDE_TEXT
REGEX_POSSIBLE
REGEX_BASIC
REGEX_TEXT
REGEX_TEXT_PRESENTATION
REGEX_PROP_EMOJI
REGEX_PROP_MODIFIER
REGEX_PROP_MODIFIER_BASE
REGEX_PROP_COMPONENT
REGEX_PROP_PRESENTATION
REGEX_PICTO
REGEX_PICTO_NO_EMOJI
REGEX_EMOJI_KEYCAP
].each do |const_name|
autoload const_name, File.join(generated_constants_dirpath, const_name.downcase)
end
# Return Emoji properties of character as an Array or nil
# See PROPERTY_NAMES constant for possible properties
#
# Source: see https://www.unicode.org/Public/16.0.0/ucd/emoji/emoji-data.txt
def self.properties(char)
ord = get_codepoint_value(char)
props = INDEX[:PROPERTIES][ord]
if props
props.map{ |prop| PROPERTY_NAMES[prop] }
else
# nothing
end
end
# Returns ordered list of Emoji, categorized in a three-level deep Hash structure
def self.list(key = nil, sub_key = nil)
return LIST unless key || sub_key
if LIST_REMOVED_KEYS.include?(key)
$stderr.puts "Warning(unicode-emoji): The category of #{key} does not exist anymore"
end
LIST.dig(*[key, sub_key].compact)
end
def self.get_codepoint_value(char)
ord = nil
if char.valid_encoding?
ord = char.ord
elsif char.encoding.name == "UTF-8"
begin
ord = char.unpack("U*")[0]
rescue ArgumentError
end
end
if ord
ord
else
raise(ArgumentError, "Unicode::Emoji must be given a valid string")
end
end
class << self
private :get_codepoint_value
end
end
end
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