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ruby24
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lib64
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ruby
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2.4.0
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rss
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files >> //opt/alt/ruby24/lib64/ruby/2.4.0/rss/converter.rb
# frozen_string_literal: false require "rss/utils" module RSS class Converter include Utils def initialize(to_enc, from_enc=nil) if "".respond_to?(:encode) @to_encoding = to_enc return end normalized_to_enc = to_enc.downcase.gsub(/-/, '_') from_enc ||= 'utf-8' normalized_from_enc = from_enc.downcase.gsub(/-/, '_') if normalized_to_enc == normalized_from_enc def_same_enc() else def_diff_enc = "def_to_#{normalized_to_enc}_from_#{normalized_from_enc}" if respond_to?(def_diff_enc) __send__(def_diff_enc) else def_else_enc(to_enc, from_enc) end end end def convert(value) if value.is_a?(String) and value.respond_to?(:encode) value.encode(@to_encoding) else value end end def def_convert(depth=0) instance_eval(<<-EOC, *get_file_and_line_from_caller(depth)) def convert(value) if value.kind_of?(String) #{yield('value')} else value end end EOC end def def_iconv_convert(to_enc, from_enc, depth=0) begin require "iconv" @iconv = Iconv.new(to_enc, from_enc) def_convert(depth+1) do |value| <<-EOC begin @iconv.iconv(#{value}) rescue Iconv::Failure raise ConversionError.new(#{value}, "#{to_enc}", "#{from_enc}") end EOC end rescue LoadError, ArgumentError, SystemCallError raise UnknownConversionMethodError.new(to_enc, from_enc) end end def def_else_enc(to_enc, from_enc) def_iconv_convert(to_enc, from_enc, 0) end def def_same_enc() def_convert do |value| value end end def def_uconv_convert_if_can(meth, to_enc, from_enc, nkf_arg) begin require "uconv" def_convert(1) do |value| <<-EOC begin Uconv.#{meth}(#{value}) rescue Uconv::Error raise ConversionError.new(#{value}, "#{to_enc}", "#{from_enc}") end EOC end rescue LoadError require 'nkf' if NKF.const_defined?(:UTF8) def_convert(1) do |value| "NKF.nkf(#{nkf_arg.dump}, #{value})" end else def_iconv_convert(to_enc, from_enc, 1) end end end def def_to_euc_jp_from_utf_8 def_uconv_convert_if_can('u8toeuc', 'EUC-JP', 'UTF-8', '-We') end def def_to_utf_8_from_euc_jp def_uconv_convert_if_can('euctou8', 'UTF-8', 'EUC-JP', '-Ew') end def def_to_shift_jis_from_utf_8 def_uconv_convert_if_can('u8tosjis', 'Shift_JIS', 'UTF-8', '-Ws') end def def_to_utf_8_from_shift_jis def_uconv_convert_if_can('sjistou8', 'UTF-8', 'Shift_JIS', '-Sw') end def def_to_euc_jp_from_shift_jis require "nkf" def_convert do |value| "NKF.nkf('-Se', #{value})" end end def def_to_shift_jis_from_euc_jp require "nkf" def_convert do |value| "NKF.nkf('-Es', #{value})" end end def def_to_euc_jp_from_iso_2022_jp require "nkf" def_convert do |value| "NKF.nkf('-Je', #{value})" end end def def_to_iso_2022_jp_from_euc_jp require "nkf" def_convert do |value| "NKF.nkf('-Ej', #{value})" end end def def_to_utf_8_from_iso_8859_1 def_convert do |value| "#{value}.unpack('C*').pack('U*')" end end def def_to_iso_8859_1_from_utf_8 def_convert do |value| <<-EOC array_utf8 = #{value}.unpack('U*') array_enc = [] array_utf8.each do |num| if num <= 0xFF array_enc << num else array_enc.concat "&\#\#{num};".unpack('C*') end end array_enc.pack('C*') EOC end end end end
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