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Versions: 8
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Stored size: 1.36 KB
Contents
require "yaml"
module LuckySneaks
module Unidecoder
# Contains Unicode codepoints, loading as needed from YAML files
CODEPOINTS = Hash.new { |h, k|
h[k] = YAML::load_file(File.join(File.dirname(__FILE__), "unidecoder_data", "#{k}.yml"))
} unless defined?(CODEPOINTS)
class << self
# Returns string with its UTF-8 characters transliterated to ASCII ones
#
# You're probably better off just using the added String#to_ascii
def decode(string)
string.gsub(/[^\x00-\x7f]/u) do |codepoint|
begin
CODEPOINTS[code_group(codepoint)][grouped_point(codepoint)]
rescue
# Hopefully this won't come up much
"?"
end
end
end
private
# Returns the Unicode codepoint grouping for the given character
def code_group(character)
"x%02x" % (character.unpack("U")[0] >> 8)
end
# Returns the index of the given character in the YAML file for its codepoint group
def grouped_point(character)
character.unpack("U")[0] & 255
end
end
end
end
module LuckySneaks
module StringExtensions
# Returns string with its UTF-8 characters transliterated to ASCII ones. Example:
#
# "⠋⠗⠁⠝⠉⠑".to_ascii #=> "braille"
def to_ascii
LuckySneaks::Unidecoder::decode(self)
end
end
end
Version data entries
8 entries across 8 versions & 2 rubygems