require 'iconv' 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 end end