[ruby-core:35271] Re: [Ruby 1.9-Bug#4359][Feedback] regular expressions created with Regexp::FIXEDENCODING have incorrect inspect

On Tue, Feb 15, 2011 at 04:23:24PM +0900, Yui NARUSE wrote:
> Issue #4359 has been updated by Yui NARUSE.
> 
> Status changed from Open to Feedback
> 
> I don't think we must show Regexp#fixed_encoding? in Regexp#inspect.

The problem is that Regexp#inspect is used for YAML dumping and loading:

  irb(main):001:0> require 'yaml'
  => true
  irb(main):002:0> y = Regexp.new('', Regexp::FIXEDENCODING)
  => //
  irb(main):003:0> x = YAML.load YAML.dump y
  => //
  irb(main):004:0> x.options
  => 0
  irb(main):005:0> y.options
  => 16
  irb(main):006:0> YAML.dump y
  => "--- !ruby/regexp //\n"
  irb(main):007:0>

I suppose I could add a special case, but that seems strange.  It also
seems strange that inspect will not allow us to differentiate between
regular expressions with different options.

-- 
Aaron Patterson
http://tenderlovemaking.com/