[#15359] Timeout::Error — Jeremy Thurgood <jerith@...>

Good day,

41 messages 2008/02/05
[#15366] Re: Timeout::Error — Eric Hodel <drbrain@...7.net> 2008/02/06

On Feb 5, 2008, at 06:20 AM, Jeremy Thurgood wrote:

[#15370] Re: Timeout::Error — Jeremy Thurgood <jerith@...> 2008/02/06

Eric Hodel wrote:

[#15373] Re: Timeout::Error — Nobuyoshi Nakada <nobu@...> 2008/02/06

Hi,

[#15374] Re: Timeout::Error — Jeremy Thurgood <jerith@...> 2008/02/06

Nobuyoshi Nakada wrote:

[#15412] Re: Timeout::Error — Nobuyoshi Nakada <nobu@...> 2008/02/07

Hi,

[#15413] Re: Timeout::Error — Jeremy Thurgood <jerith@...> 2008/02/07

Nobuyoshi Nakada wrote:

[#15414] Re: Timeout::Error — Nobuyoshi Nakada <nobu@...> 2008/02/07

Hi,

[#15360] reopen: can't change access mode from "w+" to "w"? — Sam Ruby <rubys@...>

I ran 'rake test' on test/spec [1], using

16 messages 2008/02/05
[#15369] Re: reopen: can't change access mode from "w+" to "w"? — Nobuyoshi Nakada <nobu@...> 2008/02/06

Hi,

[#15389] STDIN encoding differs from default source file encoding — Dave Thomas <dave@...>

This seems strange:

21 messages 2008/02/06
[#15392] Re: STDIN encoding differs from default source file encoding — Yukihiro Matsumoto <matz@...> 2008/02/06

Hi,

[#15481] very bad character performance on ruby1.9 — "Eric Mahurin" <eric.mahurin@...>

I'd like to bring up the issue of how characters are represented in

16 messages 2008/02/10

[#15528] Test::Unit maintainer — Kouhei Sutou <kou@...>

Hi Nathaniel, Ryan,

22 messages 2008/02/13

[#15551] Proc#curry — ts <decoux@...>

21 messages 2008/02/14
[#15557] Re: [1.9] Proc#curry — David Flanagan <david@...> 2008/02/15

ts wrote:

[#15558] Re: [1.9] Proc#curry — Yukihiro Matsumoto <matz@...> 2008/02/15

Hi,

[#15560] Re: Proc#curry — Trans <transfire@...> 2008/02/15

[#15585] Ruby M17N meeting summary — Martin Duerst <duerst@...>

This is a rough translation of the Japanese meeting summary

19 messages 2008/02/18

[#15596] possible bug in regexp lexing — Ryan Davis <ryand-ruby@...>

current:

17 messages 2008/02/19

[#15678] Re: [ANN] MacRuby — "Rick DeNatale" <rick.denatale@...>

On 2/27/08, Laurent Sansonetti <laurent.sansonetti@gmail.com> wrote:

18 messages 2008/02/28
[#15679] Re: [ANN] MacRuby — "Laurent Sansonetti" <laurent.sansonetti@...> 2008/02/28

On Thu, Feb 28, 2008 at 6:33 AM, Rick DeNatale <rick.denatale@gmail.com> wrote:

[#15680] Re: [ANN] MacRuby — Yukihiro Matsumoto <matz@...> 2008/02/28

Hi,

[#15683] Re: [ANN] MacRuby — "Laurent Sansonetti" <laurent.sansonetti@...> 2008/02/28

On Thu, Feb 28, 2008 at 1:51 PM, Yukihiro Matsumoto <matz@ruby-lang.org> wrote:

Re: possible bug in regexp lexing

From: Tanaka Akira <akr@...>
Date: 2008-02-20 15:29:15 UTC
List: ruby-core #15628
In article <20080220125943.78CB3E0297@mail.bc9.jp>,
  Nobuyoshi Nakada <nobu@ruby-lang.org> writes:

> I think it ambiguous, whether it means an escaped terminator or
> an escaped meta character, and unsafe.  We should define the
> expected behavior for such cases first.

We need to define two syntax to three semantics

syntax:
* non-escaped character
* escaped charcter

semantics:
* regexp terminator
* single character match
* other constructs (repeat, choice, etc.)

It is impossible to map the two to the three.

If a character is selected as the terminator, the character
in non-escaped form is used.  So we need to define the
semantics of the escaped form.  If the character has no
"other constructs" semantics, slash for example, there is no
problem to define it as single character match.  But the
semantics exists, we have not enough syntax to represent the
semantics.  We must drop an semantics.

ruby supports only non-alphnumerics as regexp terminators
(since ruby 1.6.6).  So the escaped form is always single
character match in usual.

I think there is no reason to change the semantics for
escaped form even if the character is selected as a
terminator.  If it is changed, it violates
"non-alphanumeric character can be escaped by slash".
So %r?\?? should means single character match for a QUESTION
MARK.
-- 
Tanaka Akira

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