/usr/lib/ruby/1.8/xsd/charset.rb is in libruby1.8 1.8.7.352-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 | # XSD4R - Charset handling library.
# Copyright (C) 2001, 2003, 2005 NAKAMURA, Hiroshi <nahi@ruby-lang.org>.
# This program is copyrighted free software by NAKAMURA, Hiroshi. You can
# redistribute it and/or modify it under the same terms of Ruby's license;
# either the dual license version in 2003, or any later version.
module XSD
module Charset
@internal_encoding = $KCODE
class XSDError < StandardError; end
class CharsetError < XSDError; end
class UnknownCharsetError < CharsetError; end
class CharsetConversionError < CharsetError; end
public
###
## Maps
#
EncodingConvertMap = {}
def Charset.init
EncodingConvertMap[['UTF8', 'X_ISO8859_1']] =
Proc.new { |str| str.unpack('U*').pack('C*') }
EncodingConvertMap[['X_ISO8859_1', 'UTF8']] =
Proc.new { |str| str.unpack('C*').pack('U*') }
begin
require 'xsd/iconvcharset'
@internal_encoding = 'UTF8'
sjtag = (/(mswin|bccwin|mingw|cygwin|emx)/ =~ RUBY_PLATFORM) ? 'cp932' :
'shift_jis'
EncodingConvertMap[['UTF8', 'EUC' ]] =
Proc.new { |str| IconvCharset.safe_iconv("euc-jp", "utf-8", str) }
EncodingConvertMap[['EUC' , 'UTF8']] =
Proc.new { |str| IconvCharset.safe_iconv("utf-8", "euc-jp", str) }
EncodingConvertMap[['EUC' , 'SJIS']] =
Proc.new { |str| IconvCharset.safe_iconv(sjtag, "euc-jp", str) }
EncodingConvertMap[['UTF8', 'SJIS']] =
Proc.new { |str| IconvCharset.safe_iconv(sjtag, "utf-8", str) }
EncodingConvertMap[['SJIS', 'UTF8']] =
Proc.new { |str| IconvCharset.safe_iconv("utf-8", sjtag, str) }
EncodingConvertMap[['SJIS', 'EUC' ]] =
Proc.new { |str| IconvCharset.safe_iconv("euc-jp", sjtag, str) }
rescue LoadError
begin
require 'nkf'
EncodingConvertMap[['EUC' , 'SJIS']] =
Proc.new { |str| NKF.nkf('-sXm0', str) }
EncodingConvertMap[['SJIS', 'EUC' ]] =
Proc.new { |str| NKF.nkf('-eXm0', str) }
rescue LoadError
end
begin
require 'uconv'
@internal_encoding = 'UTF8'
EncodingConvertMap[['UTF8', 'EUC' ]] = Uconv.method(:u8toeuc)
EncodingConvertMap[['UTF8', 'SJIS']] = Uconv.method(:u8tosjis)
EncodingConvertMap[['EUC' , 'UTF8']] = Uconv.method(:euctou8)
EncodingConvertMap[['SJIS', 'UTF8']] = Uconv.method(:sjistou8)
rescue LoadError
end
end
end
self.init
CharsetMap = {
'NONE' => 'us-ascii',
'EUC' => 'euc-jp',
'SJIS' => 'shift_jis',
'UTF8' => 'utf-8',
'X_ISO_8859_1' => 'iso-8859-1',
'X_UNKNOWN' => nil,
}
###
## handlers
#
def Charset.encoding
@internal_encoding
end
def Charset.encoding=(encoding)
warn("xsd charset is set to #{encoding}") if $DEBUG
@internal_encoding = encoding
end
def Charset.xml_encoding_label
charset_label(@internal_encoding)
end
def Charset.encoding_to_xml(str, charset)
encoding_conv(str, @internal_encoding, charset_str(charset))
end
def Charset.encoding_from_xml(str, charset)
encoding_conv(str, charset_str(charset), @internal_encoding)
end
def Charset.encoding_conv(str, enc_from, enc_to)
if enc_from == enc_to or enc_from == 'NONE' or enc_to == 'NONE'
str
elsif converter = EncodingConvertMap[[enc_from, enc_to]]
converter.call(str)
else
raise CharsetConversionError.new(
"Converter not found: #{enc_from} -> #{enc_to}")
end
end
def Charset.charset_label(encoding)
CharsetMap[encoding.upcase]
end
def Charset.charset_str(label)
if CharsetMap.respond_to?(:key)
CharsetMap.key(label.downcase) || 'X_UNKNOWN'
else
CharsetMap.index(label.downcase) || 'X_UNKNOWN'
end
end
# us_ascii = '[\x00-\x7F]'
us_ascii = '[\x9\xa\xd\x20-\x7F]' # XML 1.0 restricted.
USASCIIRegexp = Regexp.new("\\A#{us_ascii}*\\z", nil, "NONE")
twobytes_euc = '(?:[\x8E\xA1-\xFE][\xA1-\xFE])'
threebytes_euc = '(?:\x8F[\xA1-\xFE][\xA1-\xFE])'
character_euc = "(?:#{us_ascii}|#{twobytes_euc}|#{threebytes_euc})"
EUCRegexp = Regexp.new("\\A#{character_euc}*\\z", nil, "NONE")
# onebyte_sjis = '[\x00-\x7F\xA1-\xDF]'
onebyte_sjis = '[\x9\xa\xd\x20-\x7F\xA1-\xDF]' # XML 1.0 restricted.
twobytes_sjis = '(?:[\x81-\x9F\xE0-\xFC][\x40-\x7E\x80-\xFC])'
character_sjis = "(?:#{onebyte_sjis}|#{twobytes_sjis})"
SJISRegexp = Regexp.new("\\A#{character_sjis}*\\z", nil, "NONE")
# 0xxxxxxx
# 110yyyyy 10xxxxxx
twobytes_utf8 = '(?:[\xC0-\xDF][\x80-\xBF])'
# 1110zzzz 10yyyyyy 10xxxxxx
threebytes_utf8 = '(?:[\xE0-\xEF][\x80-\xBF][\x80-\xBF])'
# 11110uuu 10uuuzzz 10yyyyyy 10xxxxxx
fourbytes_utf8 = '(?:[\xF0-\xF7][\x80-\xBF][\x80-\xBF][\x80-\xBF])'
character_utf8 =
"(?:#{us_ascii}|#{twobytes_utf8}|#{threebytes_utf8}|#{fourbytes_utf8})"
UTF8Regexp = Regexp.new("\\A#{character_utf8}*\\z", nil, "NONE")
def Charset.is_us_ascii(str)
USASCIIRegexp =~ str
end
def Charset.is_utf8(str)
UTF8Regexp =~ str
end
def Charset.is_euc(str)
EUCRegexp =~ str
end
def Charset.is_sjis(str)
SJISRegexp =~ str
end
def Charset.is_ces(str, code = @internal_encoding)
case code
when 'NONE'
is_us_ascii(str)
when 'UTF8'
is_utf8(str)
when 'EUC'
is_euc(str)
when 'SJIS'
is_sjis(str)
else
raise UnknownCharsetError.new("Unknown charset: #{code}")
end
end
end
end
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