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# -*- coding: utf-8; frozen_string_literal: true -*-
#
#--
# Copyright (C) 2009-2019 Thomas Leitner <t_leitner@gmx.at>
#
# This file is part of kramdown which is licensed under the MIT.
#++
#
# This file is based on code originally from the Stringex library and needs the data files from
# Stringex to work correctly.
module Kramdown
module Utils
# Provides the ability to tranliterate Unicode strings into plain ASCII ones.
module Unidecoder
gem 'stringex'
path = $:.find do |dir|
File.directory?(File.join(File.expand_path(dir), "stringex", "unidecoder_data"))
end
if path
CODEPOINTS = Hash.new do |h, k|
h[k] = YAML.load_file(File.join(path, "stringex", "unidecoder_data", "#{k}.yml"))
end
# Transliterate string from Unicode into ASCII.
def self.decode(string)
string.gsub(/[^\x00-\x7f]/u) do |codepoint|
unpacked = codepoint.unpack1("U")
CODEPOINTS[sprintf("x%02x", unpacked >> 8)][unpacked & 255]
rescue StandardError
"?"
end
end
else
def self.decode(string)
string
end
end
end
end
end
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