/lib/redmine/codeset_util.rb
Ruby | 161 lines | 153 code | 6 blank | 2 comment | 28 complexity | e1dfdbad318e07428fa47ac470a0b0af MD5 | raw file
Possible License(s): GPL-2.0
- if RUBY_VERSION < '1.9'
- require 'iconv'
- end
- module Redmine
- module CodesetUtil
- def self.replace_invalid_utf8(str)
- return str if str.nil?
- if str.respond_to?(:force_encoding)
- str.force_encoding('UTF-8')
- if ! str.valid_encoding?
- str = str.encode("US-ASCII", :invalid => :replace,
- :undef => :replace, :replace => '?').encode("UTF-8")
- end
- elsif RUBY_PLATFORM == 'java'
- begin
- ic = Iconv.new('UTF-8', 'UTF-8')
- str = ic.iconv(str)
- rescue
- str = str.gsub(%r{[^\r\n\t\x20-\x7e]}, '?')
- end
- else
- ic = Iconv.new('UTF-8', 'UTF-8')
- txtar = ""
- begin
- txtar += ic.iconv(str)
- rescue Iconv::IllegalSequence
- txtar += $!.success
- str = '?' + $!.failed[1,$!.failed.length]
- retry
- rescue
- txtar += $!.success
- end
- str = txtar
- end
- str
- end
- def self.to_utf8(str, encoding)
- return str if str.nil?
- str.force_encoding("ASCII-8BIT") if str.respond_to?(:force_encoding)
- if str.empty?
- str.force_encoding("UTF-8") if str.respond_to?(:force_encoding)
- return str
- end
- enc = encoding.blank? ? "UTF-8" : encoding
- if str.respond_to?(:force_encoding)
- if enc.upcase != "UTF-8"
- str.force_encoding(enc)
- str = str.encode("UTF-8", :invalid => :replace,
- :undef => :replace, :replace => '?')
- else
- str.force_encoding("UTF-8")
- if ! str.valid_encoding?
- str = str.encode("US-ASCII", :invalid => :replace,
- :undef => :replace, :replace => '?').encode("UTF-8")
- end
- end
- elsif RUBY_PLATFORM == 'java'
- begin
- ic = Iconv.new('UTF-8', enc)
- str = ic.iconv(str)
- rescue
- str = str.gsub(%r{[^\r\n\t\x20-\x7e]}, '?')
- end
- else
- ic = Iconv.new('UTF-8', enc)
- txtar = ""
- begin
- txtar += ic.iconv(str)
- rescue Iconv::IllegalSequence
- txtar += $!.success
- str = '?' + $!.failed[1,$!.failed.length]
- retry
- rescue
- txtar += $!.success
- end
- str = txtar
- end
- str
- end
- def self.to_utf8_by_setting(str)
- return str if str.nil?
- str = self.to_utf8_by_setting_internal(str)
- if str.respond_to?(:force_encoding)
- str.force_encoding('UTF-8')
- end
- str
- end
- def self.to_utf8_by_setting_internal(str)
- return str if str.nil?
- if str.respond_to?(:force_encoding)
- str.force_encoding('ASCII-8BIT')
- end
- return str if str.empty?
- return str if /\A[\r\n\t\x20-\x7e]*\Z/n.match(str) # for us-ascii
- if str.respond_to?(:force_encoding)
- str.force_encoding('UTF-8')
- end
- encodings = Setting.repositories_encodings.split(',').collect(&:strip)
- encodings.each do |encoding|
- if str.respond_to?(:force_encoding)
- begin
- str.force_encoding(encoding)
- utf8 = str.encode('UTF-8')
- return utf8 if utf8.valid_encoding?
- rescue
- # do nothing here and try the next encoding
- end
- else
- begin
- return Iconv.conv('UTF-8', encoding, str)
- rescue Iconv::Failure
- # do nothing here and try the next encoding
- end
- end
- end
- str = self.replace_invalid_utf8(str)
- if str.respond_to?(:force_encoding)
- str.force_encoding('UTF-8')
- end
- str
- end
- def self.from_utf8(str, encoding)
- str ||= ''
- if str.respond_to?(:force_encoding)
- str.force_encoding('UTF-8')
- if encoding.upcase != 'UTF-8'
- str = str.encode(encoding, :invalid => :replace,
- :undef => :replace, :replace => '?')
- else
- str = self.replace_invalid_utf8(str)
- end
- elsif RUBY_PLATFORM == 'java'
- begin
- ic = Iconv.new(encoding, 'UTF-8')
- str = ic.iconv(str)
- rescue
- str = str.gsub(%r{[^\r\n\t\x20-\x7e]}, '?')
- end
- else
- ic = Iconv.new(encoding, 'UTF-8')
- txtar = ""
- begin
- txtar += ic.iconv(str)
- rescue Iconv::IllegalSequence
- txtar += $!.success
- str = '?' + $!.failed[1, $!.failed.length]
- retry
- rescue
- txtar += $!.success
- end
- str = txtar
- end
- end
- end
- end