Ruby

Invalid byte sequence in US-ASCII on ruby 1.9.3

I receive that error when trying to open url with bulgarian text (utf-8: "История"). It seems that the problem is in uri/common.rb from ruby standard library...

adding str.force_encoding(Encoding::BINARY) to following method fix the problem

class URI::Parser
def escape(str, unsafe = @regexp[:UNSAFE])
unless unsafe.kind_of?(Regexp)
# perhaps unsafe is String object
unsafe = Regexp.new("[#{Regexp.quote(unsafe)}]", false)
end
str.force_encoding(Encoding::BINARY) # FIX
str.gsub(unsafe) do
us = $&
tmp = ''
us.each_byte do |uc|
tmp << sprintf('%%%02X', uc)
end
tmp
end.force_encoding(Encoding::US_ASCII)
end
end

One more suggestion - maybe US_ASCII must be replaced to Encoding::BINARY too?