GNU bug report logs - #7475
I wish query-replace-regexp would use perl regexps

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: jidanni <at> jidanni.org
To: bug-gnu-emacs <at> gnu.org
Subject: I wish query-replace-regexp would use perl regexps
Date: Thu, 25 Nov 2010 04:59:46 +0800

I wish query-replace-regexp would use perl regexps.
It is already hard enough to get the region and regexp right, and then
one has to think 'how do I write that in old fashioned regexp language."
Why can't it be rigged up to just send it to the current perl on the machine.
As it is I am already just saying forget it and 'outsourcing' more
complicated jobs to batch scripts.

Message #8 received at 7475 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
Cc: 7475 <at> debbugs.gnu.org
Subject: Re: bug#7475: I wish query-replace-regexp would use perl regexps
Date: Sat, 10 Aug 2019 21:32:23 +0200

jidanni <at> jidanni.org writes:

> I wish query-replace-regexp would use perl regexps.
> It is already hard enough to get the region and regexp right, and then
> one has to think 'how do I write that in old fashioned regexp language."
> Why can't it be rigged up to just send it to the current perl on the machine.
> As it is I am already just saying forget it and 'outsourcing' more
> complicated jobs to batch scripts.

Sending every regular expression to an external executable would add a
new dependency and likely affect performance badly.

To do this reasonably would presumably require significant work on the
regular expression engine, and a good plan for making the change.  Many
users are very used to the current regular expressions Emacs use.

Maybe a better option is to develop something like this as an external
package?

I would suggest to close this as wontfix.

Best regards,
Stefan Kangas

Message #11 received at 7475 <at> debbugs.gnu.org (full text, mbox):

From: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
To: Stefan Kangas <stefan <at> marxist.se>
Cc: 7475 <at> debbugs.gnu.org
Subject: Re: bug#7475: I wish query-replace-regexp would use perl regexps
Date: Sun, 11 Aug 2019 06:09:09 +0800

All I know is GNU grep has a -P option, to use perl expressions, all
within the same program.

Message #14 received at submit <at> debbugs.gnu.org (full text, mbox):

From: ndame <emacsuser <at> freemail.hu>
To: "7475 <at> debbugs.gnu.org" <7475 <at> debbugs.gnu.org>, 
 "bug-gnu-emacs <at> gnu.org" <bug-gnu-emacs <at> gnu.org>
Subject: bug#7475: I wish query-replace-regexp would use perl regexps
Date: Sun, 11 Aug 2019 09:21:53 +0200 (CEST)

[Message part 1 (text/plain, inline)]

There is a package which does this:

https://github.com/joddie/pcre2el

[Message part 2 (text/html, inline)]

Message #20 received at 7475 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: ndame <emacsuser <at> freemail.hu>
Cc: 7475 <at> debbugs.gnu.org
Subject: Re: bug#7475: I wish query-replace-regexp would use perl regexps
Date: Mon, 14 Oct 2019 03:11:29 +0200

ndame <emacsuser <at> freemail.hu> writes:

> There is a package which does this:
>
> https://github.com/joddie/pcre2el

There has been some talk about allowing alternate Perl regexps, but it
wouldn't be just for a single command like this, so I'm closing this bug
report.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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