[#40602] [ruby-trunk - Bug #5532][Open] Compile problem for bigdecimal on cygwin — Martin Dürst <duerst@...>

14 messages 2011/11/01

[#40617] [ruby-trunk - Feature #5534][Open] Redefine Range class and introduce RelativeNumeric and RelativeRange — Alexey Muranov <muranov@...>

17 messages 2011/11/01

[#40646] [ruby-trunk - Bug #5541][Open] Better configure error message when llvm-gcc is the default compiler — Eric Hodel <[email protected]>

10 messages 2011/11/01

[#40648] [ruby-trunk - Feature #5543][Open] rb_thread_blocking_region() API is poorly designed — Christopher Huff <cjameshuff@...>

14 messages 2011/11/01

[#40684] [ruby-trunk - Feature #5555][Open] rename #include? to #includes? — Alexey Muranov <muranov@...>

20 messages 2011/11/02

[#40688] [ruby-trunk - Bug #5556][Open] SIGHUP no longer ignored when sent to process group from a subprocess — Brian Ford <brixen@...>

12 messages 2011/11/02

[#40706] [ruby-trunk - Feature #5562][Open] Improvement of Windows IO performance — Hiroshi Shirosaki <h.shirosaki@...>

39 messages 2011/11/03

[#40737] [ruby-trunk - Bug #5570][Open] Encoding of environment variables on Windows — Nikolai Weibull <now@...>

11 messages 2011/11/04

[#40748] Proposal for sustainable branch maintenance — "Yuki Sonoda (Yugui)" <yugui@...>

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14 messages 2011/11/05

[#40770] [ruby-trunk - Feature #5578][Open] Embedded YAML for Ruby 2.0 — Thomas Sawyer <transfire@...>

17 messages 2011/11/06

[#40806] [ruby-trunk - Feature #5583][Open] Optionally typing — Yasushi ANDO <andyjpn@...>

21 messages 2011/11/07

[#40824] [ruby-trunk - Feature #5588][Open] add negation flag (v) to Regexp — Suraj Kurapati <sunaku@...>

38 messages 2011/11/08

[#40865] IO.copy_stream creates files with restrictive permissions — Eric Wong <normalperson@...>

I'm not sure if this is a bug or intended as spec.

16 messages 2011/11/09
[#41151] Re: IO.copy_stream creates files with restrictive permissions — Tanaka Akira <akr@...> 2011/11/19

2011/11/9 Eric Wong <[email protected]>:

[#41166] Re: IO.copy_stream creates files with restrictive permissions — KOSAKI Motohiro <kosaki.motohiro@...> 2011/11/20

>> I noticed when a file name argument is passed to the IO.copy_stream, the

[#41168] Re: IO.copy_stream creates files with restrictive permissions — Clifford Heath <clifford.heath@...> 2011/11/20

On 20/11/2011, at 5:09 PM, KOSAKI Motohiro wrote:

[#41176] Re: IO.copy_stream creates files with restrictive permissions — Tanaka Akira <akr@...> 2011/11/21

2011/11/20 Clifford Heath <[email protected]>:

[#41180] Re: IO.copy_stream creates files with restrictive permissions — KOSAKI Motohiro <kosaki.motohiro@...> 2011/11/21

>> I think documentation is the wrong answer. The security defects are not caused

[#40908] [ruby-trunk - Feature #5607][Open] Inconsistent reaction in Range of String — Yen-Nan Lin <redmine@...>

15 messages 2011/11/10

[#40941] [ruby-trunk - Feature #5617][Open] Allow install RubyGems into dediceted directory — Vit Ondruch <v.ondruch@...>

22 messages 2011/11/11

[#40951] [Backport93 - Backport #5621][Open] Please backport thread-safe autoloading patch — Mike Perham <mperham@...>

25 messages 2011/11/12
[#40971] [Backport93 - Backport #5621] Please backport thread-safe autoloading patch — Mike Perham <mperham@...> 2011/11/12

[#40972] Re: [Backport93 - Backport #5621] Please backport thread-safe autoloading patch — Yehuda Katz <wycats@...> 2011/11/12

Unfortunately ruby-head has a deadlock in one of my go-to scenarios for

[#40976] Re: [Backport93 - Backport #5621] Please backport thread-safe autoloading patch — Hiroshi Nakamura <nahi@...> 2011/11/13

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[#41128] Re: [Backport93 - Backport #5621] Please backport thread-safe autoloading patch — Charles Oliver Nutter <headius@...> 2011/11/18

On Sat, Nov 12, 2011 at 7:24 PM, Hiroshi Nakamura <[email protected]> wrote:

[#41129] Re: [Backport93 - Backport #5621] Please backport thread-safe autoloading patch — Hiroshi Nakamura <nahi@...> 2011/11/18

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[#41142] Re: [Backport93 - Backport #5621] Please backport thread-safe autoloading patch — Charles Oliver Nutter <headius@...> 2011/11/18

On Fri, Nov 18, 2011 at 12:15 AM, Hiroshi Nakamura <[email protected]> wro=

[#40982] [ruby-trunk - Bug #5625][Open] Remove profanity and pejoratives — Andrew Grimm <andrew.j.grimm@...>

30 messages 2011/11/13

[#41004] [ruby-trunk - Feature #5628][Open] Module#basename — Thomas Sawyer <transfire@...>

18 messages 2011/11/14

[#41024] [ruby-trunk - Feature #5632][Open] Attempt to open included class shades it instead. — Boris Stitnicky <boris@...>

12 messages 2011/11/14

[#41025] Proposal to add new methods: positive? negative? natural? — JosFrancisco Calvo Moreno <josefranciscocalvo@...>

Hi all!

11 messages 2011/11/14
[#41027] Re: Proposal to add new methods: positive? negative? natural? — Jeremy Evans <code@...> 2011/11/14

On 11/15 12:58, Jos? Francisco Calvo Moreno wrote:

[#41031] Re: Proposal to add new methods: positive? negative? natural? — JosFrancisco Calvo Moreno <josefranciscocalvo@...> 2011/11/14

Hi Jeremy,

[#41038] [ruby-trunk - Bug #5634][Open] yield and binding — Thomas Sawyer <transfire@...>

17 messages 2011/11/14

[#41086] [ruby-trunk - Feature #5644][Open] add Enumerable#exclude? antonym — Suraj Kurapati <sunaku@...>

14 messages 2011/11/17

[#41175] [ruby-trunk - Feature #5654][Open] Introduce global lock to avoid concurrent require — Hiroshi Nakamura <nakahiro@...>

12 messages 2011/11/21

[#41200] [ruby-trunk - Bug #5659][Open] bug releasing a gem created with rails 3.1 — Vinicius Gati <viniciusgati@...>

14 messages 2011/11/22

[#41212] [ruby-trunk - Feature #5662][Open] inject-accumulate, or Haskell's mapAccum* — Edvard Majakari <edvard.majakari@...>

12 messages 2011/11/22

[#41213] [ruby-trunk - Bug #5663][Open] Combined map/select method — Yehuda Katz <wycats@...>

62 messages 2011/11/22

[#41317] [ruby-trunk - Bug #5676][Open] miniruby linking error: undefined reference to ___stack_chk_guard — Martin Dürst <duerst@...>

10 messages 2011/11/27

[#41404] [ruby-trunk - Bug #5690][Open] Module#qualified_const_get — Yehuda Katz <wycats@...>

31 messages 2011/11/30

[ruby-core:40930] [ruby-trunk - Feature #5588] add negation flag (v) to Regexp

From: Suraj Kurapati <sunaku@...>
Date: 2011-11-10 23:38:37 UTC
List: ruby-core #40930
Issue #5588 has been updated by Suraj Kurapati.


I did it! ^_^  Please take a look:

https://github.com/sunaku/ruby/compare/5588_regexp_v

There are a few issues remaining with the implementation:

* Store snegate on STACK support nested embedded negated regexps.

* Find a better way to double-pop the stack in OP_NEGATE_END handler in regexec.c; currently it puts undefined values into s, p, etc. when the stack is popped for the second time in "goto fail" handler.

After that, I need to make Ruby parser accept /.../v as a literal regexp flag.

Thanks for your consideration.
----------------------------------------
Feature #5588: add negation flag (v) to Regexp
http://redmine.ruby-lang.org/issues/5588

Author: Suraj Kurapati
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 


Please add a negation flag (v) to regexps which inverts them:

  "ruby" =~ /perl/v       #=> true   (turn on negation)
  "ruby" !~ /perl/v       #=> false  (turn on negation)
  "ruby" =~ /(?v:perl)/   #=> true   (turn on negation)
  "ruby" !~ /(?v:perl)/   #=> false  (turn on negation)
  "ruby" =~ /(?-v:perl)/  #=> false  (turn off negation)
  "ruby" !~ /(?-v:perl)/  #=> true   (turn off negation)

The flag name "v" comes from the ex(1) command of the same name.

This has beneficial applications where it is sometimes difficult
to construct what you want to match but much easier to construct
what you *do not* want to match.  Having this negation built in
the regexp itself would remove the need for us to change our 
Ruby code to process a regexp in a different way.  

For example, suppose that you are passing a regexp to the `--name`
command-line option of MiniTest.  This regexp tells MiniTest to
only run those tests whose names match.  If Ruby had a negation
flag on its regexps, then it would be suddenly trivial to make
MiniTest skip certain tests by negating the regexp we pass in.

In this manner, we get a beneficial feature without ever changing
our Ruby code (the codebase of MiniTest in this example).  :-)

Thanks for your consideration.


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