[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: :regexp to abbrev table
From: |
Leo |
Subject: |
Re: :regexp to abbrev table |
Date: |
Mon, 19 Apr 2010 19:26:39 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux) |
On 2010-04-19 07:29 +0100, Stefan Monnier wrote:
>> The abbrev itself should match \\(\\(\\sw\\|\\s_\\|\\s\\\\)+\\). Since
>> currently :regexp also needs to match part of the text before the
>> abbrev, how to prepend \\(\\(\\sw\\|\\s_\\|\\s\\\\)+\\) so that abbrevs
>> can be correctly found? Something similar to \\(\\Sw\\|\\S_\\|\\S\\\\)
>> but without adding the extra group.
>
> Adding an extra group is no problem, as long as you make it shy
> (i.e. an \(?:..\) rather than \(..\) so that it doesn't get a group
> number). Remember that "The submatch 1 is treated
> as the potential name of an abbrev" so the subgroup nb 1 can be preceded
> by any text you like.
I have been trying all afternoon to construct such a regexp. Asking also
on irc #emacs and emacs-help and I haven't received an answer yet.
Is it possible for you to provide an actual regexp to find abbrevs that
contains word, symbol or \?
>> Do you think using greedy looking-back in abbrev--before-point will make
>> creating the :regexp property easier?
>
> It often would, yes. But it could also negatively affect performance.
I don't know the impact on performance. But since it is capped by
(line-beginning-position) will it matter that much? During the time I
enabled greedy looking-back, I haven't noticed any slow down.
Do you think it worthwhile to provide another property :syntax to allow
user to easily specify, for example, a value "w_\\" and find the abbrev
name correctly?
Leo
- :regexp to abbrev table, Leo, 2010/04/16
- Re: :regexp to abbrev table, Stefan Monnier, 2010/04/19
- Re: :regexp to abbrev table,
Leo <=
- Message not available
- Re: :regexp to abbrev table, Leo, 2010/04/20
- Re: :regexp to abbrev table, Stefan Monnier, 2010/04/20
- Re: :regexp to abbrev table, Leo, 2010/04/20
- Re: :regexp to abbrev table, Leo, 2010/04/20
- Re: :regexp to abbrev table, Stefan Monnier, 2010/04/21
- Re: :regexp to abbrev table, Leo, 2010/04/21
- Message not available
- Re: :regexp to abbrev table, Leo, 2010/04/21
- Message not available
- Re: :regexp to abbrev table, Leo, 2010/04/21
- Re: :regexp to abbrev table, Stefan Monnier, 2010/04/22