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From: Lennart Borgman <lennart.borgman@gmail.com>
To: David Combs <dkcombs@panix.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: please help with font-lock-add-keywords
Date: Thu, 7 Jan 2010 02:01:40 +0100	[thread overview]
Message-ID: <e01d8a51001061701w659b826al4b64f372ceb4e7ea@mail.gmail.com> (raw)
In-Reply-To: <hi3afa$2qu$1@reader1.panix.com>

On Thu, Jan 7, 2010 at 1:39 AM, David Combs <dkcombs@panix.com> wrote:
>>> (add-hook 'lisp-mode-hook
>>>        (lambda ()
>>>          (font-lock-add-keywords
>>>           nil
>>>              '(("\\<\\(qbb-create-image\\|qbb-destroy-image\\)\\>" .
>>>                 font-lock-keyword-face)))))
>>
>>Looks correct.  But when using the ("regexp" . face) form, you can use
>>shy groups for performance reasons, because here you refer to the whole
>
> Please, what is a "shy group"?   Some math thing?


It is a group that does not record sub expressions in the match.
Written with (?: ...) like

             '(("\\<\\(?:qbb-create-image\\|qbb-destroy-image\\)\\>" .




      reply	other threads:[~2010-01-07  1:01 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-31  1:06 please help with font-lock-add-keywords bufie
2009-12-31 13:08 ` Tassilo Horn
     [not found] ` <mailman.477.1262264969.18930.help-gnu-emacs@gnu.org>
2009-12-31 23:14   ` bufie
2010-01-07  0:39   ` David Combs
2010-01-07  1:01     ` Lennart Borgman [this message]

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