From: "Lennart Borgman" <lennart.borgman@gmail.com>
To: "Nikolaj Schumacher" <me@nschum.de>
Cc: help-gnu-emacs@gnu.org, Xah <xahlee@gmail.com>
Subject: Re: regex-opt does not accept 'symbol as second arg?
Date: Sat, 11 Oct 2008 14:20:04 +0200 [thread overview]
Message-ID: <e01d8a50810110520o7c15f6f8i8b49009b7c029465@mail.gmail.com> (raw)
In-Reply-To: <m24p3jbadx.fsf@nschum.de>
On Sat, Oct 11, 2008 at 2:10 PM, Nikolaj Schumacher <me@nschum.de> wrote:
> "Lennart Borgman" <lennart.borgman@gmail.com> wrote:
>
>> On Sat, Oct 11, 2008 at 12:02 PM, Xah <xahlee@gmail.com> wrote:
>>> the regexp-opt accept a second argument of "'word", but it doesn't
>>> accept "'symbol"?
>>>
>>> Shouldn't it?
>
> Sure, why not.
>
>> Would not the semantics be exactly the same?
>
> No, "\\<\\(\\w\\|\\s_+\\)+" (word delimiters) doesn't match the entire
> lisp symbol `-test'.
Ok, I see. There is \\_< for symbols, I never noticed that (I thought
that must be handled in the syntax table).
Then I think Xah is right.
>> But one thing I think would be useful is to be able to use numbers for
>> the PAREN argument to get an explicitly numbered regexp group back.
>
> Is it possible to modify the numbering at all? If so, how?
See (info "(elisp) Regexp Backslash")
`\(?NUM: ... \)'
is the "explicitly numbered group" construct.
> regards,
> Nikolaj Schumacher
>
next prev parent reply other threads:[~2008-10-11 12:20 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-11 10:02 regex-opt does not accept 'symbol as second arg? Xah
2008-10-11 11:41 ` Lennart Borgman
2008-10-11 12:10 ` Nikolaj Schumacher
2008-10-11 12:20 ` Lennart Borgman [this message]
2008-10-11 13:01 ` Nikolaj Schumacher
2008-10-11 14:03 ` Lennart Borgman
[not found] ` <mailman.850.1223727025.25473.help-gnu-emacs@gnu.org>
2008-10-12 1:45 ` Tim X
2008-10-12 10:17 ` Nikolaj Schumacher
[not found] ` <mailman.880.1223806646.25473.help-gnu-emacs@gnu.org>
2008-10-13 7:48 ` Tim X
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