From: "Richard W.M. Jones" <rjones@redhat.com>
To: Julia Lawall <julia.lawall@inria.fr>
Cc: cocci@inria.fr
Subject: Re: [cocci] pcre vs pcre2
Date: Tue, 20 Sep 2022 14:46:48 +0100 [thread overview]
Message-ID: <20220920134648.GA19609@redhat.com> (raw)
In-Reply-To: <alpine.DEB.2.22.394.2207222129160.2321@hadrien>
On Fri, Jul 22, 2022 at 09:30:44PM +0200, Julia Lawall wrote:
>
>
> On Fri, 22 Jul 2022, Richard W.M. Jones wrote:
>
> > PCRE (not PCRE2) is end of life: http://www.pcre.org/
> >
> > and may be removed from Fedora:
> >
> > https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/K3BUC6T5VIG7LXOV4RVFO7IUPE2LGA2J/
> >
> > It seems as if coccinelle has an optional dep on PCRE enabled/disabled
> > through ./configure --enable-pcre-syntax. It's not entirely clear to
> > me what Fedora would lose by disabling this.
> >
> > Does coccinelle plan to move to PCRE2?
> >
> > I have moved a few projects over to PCRE2. It's definitely not an
> > automatic conversion, although it also wasn't especially difficult.
> > Here's libguestfs. This is mostly C and we maintain our own PCRE
> > bindings for OCaml which are not based on Markus Mottl's bindings, but
> > it should give you an idea of the changes:
> >
> > https://github.com/libguestfs/libguestfs/commit/82493579f38f39769861f31403ccfb8e97b41f96
> > https://github.com/libguestfs/libguestfs-common/commit/0b244f2b0cfc920f2432f5df45e108583f0d2901
> >
> > We decided not to support alternate PCRE or PCRE2 compiles since all
> > distros have provided PCRE2 for a long time.
> >
> > Also:
> >
> > https://github.com/mmottl/pcre-ocaml/issues/25
>
> Thanks for the warning. I don't think Coccinelle (the implementation)
> actually uses PCRE in any important way. It just makes PCRE availble to
> the user for writing semantic patches. I will look into how we can
> convert (or at least make PCRE2 available as an additional option).
>
> julia
To follow up, here's the Fedora bug:
https://bugzilla.redhat.com/show_bug.cgi?id=2128281
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
libguestfs lets you edit virtual machines. Supports shell scripting,
bindings from many languages. http://libguestfs.org
next prev parent reply other threads:[~2022-09-20 13:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-22 19:23 [cocci] pcre vs pcre2 Richard W.M. Jones
2022-07-22 19:30 ` Julia Lawall
2022-09-20 13:46 ` Richard W.M. Jones [this message]
2022-07-23 5:38 ` Markus Elfring
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220920134648.GA19609@redhat.com \
--to=rjones@redhat.com \
--cc=cocci@inria.fr \
--cc=julia.lawall@inria.fr \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.