From: Aaron Patterson <aaron@...>
Date: 2011-02-17T10:48:38+09:00
Subject: [ruby-core:35271] Re: [Ruby 1.9-Bug#4359][Feedback] regular expressions created with Regexp::FIXEDENCODING have incorrect inspect


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On Tue, Feb 15, 2011 at 04:23:24PM +0900, Yui NARUSE wrote:
> Issue #4359 has been updated by Yui NARUSE.
>=20
> Status changed from Open to Feedback
>=20
> 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'
  =3D> true
  irb(main):002:0> y =3D Regexp.new('', Regexp::FIXEDENCODING)
  =3D> //
  irb(main):003:0> x =3D YAML.load YAML.dump y
  =3D> //
  irb(main):004:0> x.options
  =3D> 0
  irb(main):005:0> y.options
  =3D> 16
  irb(main):006:0> YAML.dump y
  =3D> "--- !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.

--=20
Aaron Patterson
http://tenderlovemaking.com/

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