GNU bug report logs - #358
dabbrev-abbrev-char-regexp

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Package: emacs; Severity: minor; Reported by: "Otto Maddox" <ottomaddox <at> fastmail.fm>; dated Wed, 4 Jun 2008 13:40:03 UTC; Maintainer for emacs is bug-gnu-emacs <at> gnu.org.

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From: Lars Magne Ingebrigtsen <larsi <at> gnus.org>
To: Glenn Morris <rgm <at> gnu.org>
Subject: Re: bug#358: dabbrev-abbrev-char-regexp
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Glenn Morris <rgm <at> gnu.org> writes:

> After looking at this again, there's still no difference between nil
> and \\sw\\|\\s- AFAICS,

I've now changed the doc string to reflect this.

> but now dabbrev--abbrev-at-point makes little
> sense to me:
>
> emacs -Q --eval '(setq dabbrev-abbrev-char-regexp "\\sw")'
>
> in scratch:
>
> yes-or-no---
>
> followed by M-/ gives
>
> "No dynamic expansion for `no---' found". Obviously, "---" are not
> word constituents, yet they are included in the abbrev, in flat
> contradiction to the doc-string of dabbrev-abbrev-char-regexp:
>
>     if you set this variable to "\\sw", then expanding `yes-or-no-'
>     signals an error because `-' is not part of a word
>
> This is caused by dabbrev--abbrev-at-point's:
>
>     ;; If we aren't right after an abbreviation,
>     ;; move point back to just after one.
>     ;; This is so the user can get successive words
>     ;; by typing the punctuation followed by M-/.

I have no idea how dabbrev works, but isn't that a new bug report?  :-)

-- 
(domestic pets only, the antidote for overdose, milk.)
  bloggy blog http://lars.ingebrigtsen.no/
Information forwarded to owner <at> debbugs.gnu.org, bug-gnu-emacs <at> gnu.org:
bug#358; Package emacs. Full text available.
Information forwarded to bug-submit-list <at> lists.donarmstrong.com, Emacs Bugs <bug-gnu-emacs <at> gnu.org>:
bug#358; Package emacs. Full text available.

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From: Glenn Morris <rgm <at> gnu.org>
To: 358 <at> debbugs.gnu.org
Subject: Re: bug#358: dabbrev-abbrev-char-regexp
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After looking at this again, there's still no difference between nil
and \\sw\\|\\s- AFAICS, but now dabbrev--abbrev-at-point makes little
sense to me:

emacs -Q --eval '(setq dabbrev-abbrev-char-regexp "\\sw")'

in scratch:

yes-or-no---

followed by M-/ gives

"No dynamic expansion for `no---' found". Obviously, "---" are not
word constituents, yet they are included in the abbrev, in flat
contradiction to the doc-string of dabbrev-abbrev-char-regexp:

    if you set this variable to "\\sw", then expanding `yes-or-no-'
    signals an error because `-' is not part of a word

This is caused by dabbrev--abbrev-at-point's:

    ;; If we aren't right after an abbreviation,
    ;; move point back to just after one.
    ;; This is so the user can get successive words
    ;; by typing the punctuation followed by M-/.
Information forwarded to bug-submit-list <at> lists.donarmstrong.com, Emacs Bugs <bug-gnu-emacs <at> gnu.org>:
bug#358; Package emacs. Full text available.

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From: Glenn Morris <rgm <at> gnu.org>
To: 358 <at> debbugs.gnu.org
Subject: Re: bug#358: dabbrev-abbrev-char-regexp
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	Maddox's message of "Wed, 04 Jun 2008 14:30:14 +0100")
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"Otto Maddox" wrote:

> The default value for dabbrev-abbrev-char-regexp is nil, but its
> docstring has this:
>
>     The recommended value is "\\sw\\|\\s_".
>
> If this value is indeed recommended, then it would make sense for it
> to be the default value also.

As far as I can tell, these two settings are exactly equivalent to one
another, and have been for some time (always?). If no-one disagrees, I
will adjust the documentation to reflect this.
Information forwarded to bug-submit-list <at> lists.donarmstrong.com, Emacs Bugs <bug-gnu-emacs <at> gnu.org>:
bug#358; Package emacs. Full text available.
Severity set to `minor' from `normal' Request was from Don Armstrong <don <at> donarmstrong.com> to control <at> emacsbugs.donarmstrong.com. Full text available.

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Subject: dabbrev-abbrev-char-regexp
Date: Wed, 04 Jun 2008 14:30:14 +0100
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The default value for dabbrev-abbrev-char-regexp is nil, but its
docstring has this:

    The recommended value is "\\sw\\|\\s_".

If this value is indeed recommended, then it would make sense for it
to be the default value also.

In GNU Emacs 22.2.1 (i386-apple-darwin9.2.2, Carbon Version 1.6.0)
 of 2008-04-16

-- 
  Otto Maddox
  ottomaddox <at> fastmail.fm

-- 
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Acknowledgement sent to "Otto Maddox" <ottomaddox <at> fastmail.fm>:
New bug report received and forwarded. Copy sent to Emacs Bugs <bug-gnu-emacs <at> gnu.org>. Full text available.
Report forwarded to bug-submit-list <at> lists.donarmstrong.com, Emacs Bugs <bug-gnu-emacs <at> gnu.org>:
bug#358; Package emacs. Full text available.
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