/usr/lib/ruby/1.9.1/rexml/encoding.rb is in libruby1.9.1 1.9.3.0-1ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | module REXML
module Encoding
# ID ---> Encoding name
attr_reader :encoding
def encoding=(encoding)
encoding = encoding.name if encoding.is_a?(Encoding)
if encoding.is_a?(String)
original_encoding = encoding
encoding = find_encoding(encoding)
unless encoding
raise ArgumentError, "Bad encoding name #{original_encoding}"
end
end
return false if defined?(@encoding) and encoding == @encoding
if encoding
@encoding = encoding.upcase
else
@encoding = 'UTF-8'
end
true
end
def check_encoding(xml)
# We have to recognize UTF-16BE, UTF-16LE, and UTF-8
if xml[0, 2] == "\xfe\xff"
xml[0, 2] = ""
return 'UTF-16BE'
elsif xml[0, 2] == "\xff\xfe"
xml[0, 2] = ""
return 'UTF-16LE'
end
xml =~ /^\s*<\?xml\s+version\s*=\s*(['"]).*?\1\s+encoding\s*=\s*(["'])(.*?)\2/m
return $3 ? $3.upcase : 'UTF-8'
end
def encode(string)
string.encode(@encoding)
end
def decode(string)
string.encode(::Encoding::UTF_8, @encoding)
end
private
def find_encoding(name)
case name
when /\Ashift-jis\z/i
return "SHIFT_JIS"
when /\ACP-(\d+)\z/
name = "CP#{$1}"
when /\AUTF-8\z/i
return name
end
begin
::Encoding::Converter.search_convpath(name, 'UTF-8')
rescue ::Encoding::ConverterNotFoundError
return nil
end
name
end
end
end
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