Stefan Kangas <stefankangas@HIDDEN>
to control <at> debbugs.gnu.org.
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header.from=prevas.dk; Received: from DB9PR10MB7100.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:10:45a::14) by PAVPR10MB6940.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:102:30b::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7002.19; Thu, 16 Nov 2023 08:26:00 +0000 Received: from DB9PR10MB7100.EURPRD10.PROD.OUTLOOK.COM ([fe80::8bd9:31bc:d048:af15]) by DB9PR10MB7100.EURPRD10.PROD.OUTLOOK.COM ([fe80::8bd9:31bc:d048:af15%5]) with mapi id 15.20.7002.021; Thu, 16 Nov 2023 08:26:00 +0000 Message-ID: <f57309a1-437b-4876-9577-2fe269a626e7@HIDDEN> Date: Thu, 16 Nov 2023 09:25:58 +0100 User-Agent: Mozilla Thunderbird Subject: Re: bug#67173: 27.1; support raw string literals in C mode (a GNU C extension) Content-Language: en-US, da To: Alan Mackenzie <acm@HIDDEN>, Eli Zaretskii <eliz@HIDDEN> References: <6bf89666-40d3-4772-8add-ef8c33568881@HIDDEN> <835y23rwwk.fsf@HIDDEN> <ZVVE08ou8mW89b-4@ACM> From: Rasmus Villemoes <ravi@HIDDEN> In-Reply-To: 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PAVPR10MB6940 X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 67173 Cc: 67173 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On 15/11/2023 23.23, Alan Mackenzie wrote: > Hello, Eli and Rasmus. > > On Wed, Nov 15, 2023 at 15:03:39 +0200, Eli Zaretskii wrote: >>> Date: Tue, 14 Nov 2023 11:30:53 +0100 >>> From: Rasmus Villemoes via "Bug reports for GNU Emacs, >>> the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> > >>> gcc, when using -std=gnu99 or newer, supports using raw string literals >>> in C code. But emacs' C mode does not do proper syntax highlighting for >>> that case. > > Thanks! I didn't know about that. I can't find any mention of raw > strings in C in the GCC manual for version 10.3.0. No, it's not mentioned anywhere, and I don't know why they don't document it, but it's most definitely deliberate (see the lang_defaults[] table in libcpp/init.cc). >>> I do not know if that can be fixed by simply adding >>> c-before-change-check-raw-strings to C mode's >>> c-get-state-before-change-functions. > > That's the basic idea, yes, with another function to be added to > c-before-font-lock-functions. But there are several detailed changes > necessary, too. That explains why my quick hacking didn't work... >> Alan, are you looking into this? > > I am now. What's bothering me at the moment is that this is going to > make C Mode slower. Urgh, I didn't think about that. I agree that it's probably not very widely used (probably partly due to not being documented...). I myself only use it very rarely, and for now just use C++ mode for the file in question where I noticed this. So if "slower" is actually noticeable, I would probably prefer to retract this bug report or ask that support becomes some explicit opt-in, because 99.99% of the .c files I touch do not use raw strings. Regardless, thanks for taking this up so quickly. Rasmus
bug-gnu-emacs@HIDDEN:bug#67173; Package emacs.
Full text available.Received: (at 67173) by debbugs.gnu.org; 16 Nov 2023 05:58:02 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Nov 16 00:58:02 2023 Received: from localhost ([127.0.0.1]:54323 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1r3VO5-0007RL-HR for submit <at> debbugs.gnu.org; Thu, 16 Nov 2023 00:58:02 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:58566) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1r3VNz-0007R0-SC for 67173 <at> debbugs.gnu.org; Thu, 16 Nov 2023 00:57:59 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1r3VNu-0003G6-1V; Thu, 16 Nov 2023 00:57:50 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=GKvbCEsrel/RMJkwYWVAr7Vo07FAnKzC9HNWUPq0VsM=; b=k5mqxbrO4k/t RBtXvdT3HCt8hr/KZjZ43CHbR5oBUUr2Iaf6XyzjCRfSqm9e74kSiUFv7SPTn+6ftKu6LUgTf+qsD ImWu7quI2Epj5WpU0B74gWEw+GYb6npjPEhPFswZiEPkwyhLluOMHlJ8zZrKrTi0vrTmLEP1TSA6T dKz//lqVe+M5DbeaYEzHv0i7ZlMSOB6QWUYzyQJ7GcQrMlelIcpuCs/hAnjGOSIiJJEqEMk1laXbF efZ/xOZ5Fv/wLXUIuFmFe4wYpd+BTIFZvOG2diUPd55GEsgesvL4t4oj9372HKYfFmJHKIcX92f1f KegSAY+qR3rnBl9CWmQtIA==; Date: Thu, 16 Nov 2023 07:57:40 +0200 Message-Id: <83zfzep7e3.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Alan Mackenzie <acm@HIDDEN> In-Reply-To: <ZVVE08ou8mW89b-4@ACM> (message from Alan Mackenzie on Wed, 15 Nov 2023 22:23:15 +0000) Subject: Re: bug#67173: 27.1; support raw string literals in C mode (a GNU C extension) References: <6bf89666-40d3-4772-8add-ef8c33568881@HIDDEN> <835y23rwwk.fsf@HIDDEN> <ZVVE08ou8mW89b-4@ACM> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 67173 Cc: ravi@HIDDEN, 67173 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Date: Wed, 15 Nov 2023 22:23:15 +0000 > Cc: Rasmus Villemoes <ravi@HIDDEN>, 67173 <at> debbugs.gnu.org > From: Alan Mackenzie <acm@HIDDEN> > > > > I do not know if that can be fixed by simply adding > > > c-before-change-check-raw-strings to C mode's > > > c-get-state-before-change-functions. > > That's the basic idea, yes, with another function to be added to > c-before-font-lock-functions. But there are several detailed changes > necessary, too. > > > Alan, are you looking into this? > > I am now. What's bothering me at the moment is that this is going to > make C Mode slower. I suppose I could add an option into C Mode so that > raw strings can be enabled only when they're needed, but this would be > quite awkward, and a new departure for CC Mode. We could support fontification of raw strings only when font-lock-maximum-decoration is set, or something. Any solution that makes this optional behavior is okay from where I stand, since I don't believe raw string literals will be used frequently enough to make this a UX issue.
bug-gnu-emacs@HIDDEN:bug#67173; Package emacs.
Full text available.Received: (at 67173) by debbugs.gnu.org; 15 Nov 2023 22:23:25 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Nov 15 17:23:25 2023 Received: from localhost ([127.0.0.1]:54099 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1r3OI8-0000b9-Rd for submit <at> debbugs.gnu.org; Wed, 15 Nov 2023 17:23:25 -0500 Received: from mail.muc.de ([193.149.48.3]:63002) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <acm@HIDDEN>) id 1r3OI5-0000at-Az for 67173 <at> debbugs.gnu.org; Wed, 15 Nov 2023 17:23:23 -0500 Received: (qmail 65512 invoked by uid 3782); 15 Nov 2023 23:23:16 +0100 Received: from acm.muc.de (p4fe15c08.dip0.t-ipconnect.de [79.225.92.8]) (using STARTTLS) by colin.muc.de (tmda-ofmipd) with ESMTP; Wed, 15 Nov 2023 23:23:15 +0100 Received: (qmail 25777 invoked by uid 1000); 15 Nov 2023 22:23:15 -0000 Date: Wed, 15 Nov 2023 22:23:15 +0000 To: Eli Zaretskii <eliz@HIDDEN> Subject: Re: bug#67173: 27.1; support raw string literals in C mode (a GNU C extension) Message-ID: <ZVVE08ou8mW89b-4@ACM> References: <6bf89666-40d3-4772-8add-ef8c33568881@HIDDEN> <835y23rwwk.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <835y23rwwk.fsf@HIDDEN> X-Submission-Agent: TMDA/1.3.x (Ph3nix) From: Alan Mackenzie <acm@HIDDEN> X-Primary-Address: acm@HIDDEN X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 67173 Cc: Rasmus Villemoes <ravi@HIDDEN>, 67173 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) Hello, Eli and Rasmus. On Wed, Nov 15, 2023 at 15:03:39 +0200, Eli Zaretskii wrote: > > Date: Tue, 14 Nov 2023 11:30:53 +0100 > > From: Rasmus Villemoes via "Bug reports for GNU Emacs, > > the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> > > gcc, when using -std=gnu99 or newer, supports using raw string literals > > in C code. But emacs' C mode does not do proper syntax highlighting for > > that case. Thanks! I didn't know about that. I can't find any mention of raw strings in C in the GCC manual for version 10.3.0. > > I do not know if that can be fixed by simply adding > > c-before-change-check-raw-strings to C mode's > > c-get-state-before-change-functions. That's the basic idea, yes, with another function to be added to c-before-font-lock-functions. But there are several detailed changes necessary, too. > Alan, are you looking into this? I am now. What's bothering me at the moment is that this is going to make C Mode slower. I suppose I could add an option into C Mode so that raw strings can be enabled only when they're needed, but this would be quite awkward, and a new departure for CC Mode. -- Alan Mackenzie (Nuremberg, Germany)
bug-gnu-emacs@HIDDEN:bug#67173; Package emacs.
Full text available.Received: (at 67173) by debbugs.gnu.org; 15 Nov 2023 16:28:04 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Nov 15 11:28:04 2023 Received: from localhost ([127.0.0.1]:53110 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1r3IkF-00026h-5F for submit <at> debbugs.gnu.org; Wed, 15 Nov 2023 11:28:04 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:58120) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1r3IQf-0001QS-PA for 67173 <at> debbugs.gnu.org; Wed, 15 Nov 2023 11:07:50 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1r3FYc-0001Zo-9G; Wed, 15 Nov 2023 08:03:50 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=2M1o23la/UXhPa5Us5YaGm969aqVWHlEHpGqo4IrOd0=; b=M57GkQ0gi7/v m8mOIV9lfUbUAlvSWXHcYSBsl6zruJ8MC2FBfKu5CPpOe4KCaasNLtSM6G4GIGdpY6Kn+vUu4Vppn 3KnnYrHKA93lfdcohTz1vQR24IVQe1V+MWXjflgOvXtaGNIJqkpiZOughvFQeCzsNz2+oITwnoglF w5lBnndO5Xd65wt6bcWTG4lRBVGqIK6F/hOdDU0HyU9xrR6QplhrtODWW/e3Bfx+flk6EKMJaVk9F A0PlmMj+ki4+AK+XnD6v09QSxLx01TPZ6FVLbswri3K7NYLBrrxpf9HJegvS2bptAmIMGJnn1ClgZ uQ1ISR0Qcz8fRn5QmR3QSA==; Date: Wed, 15 Nov 2023 15:03:39 +0200 Message-Id: <835y23rwwk.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Rasmus Villemoes <ravi@HIDDEN>, Alan Mackenzie <acm@HIDDEN> In-Reply-To: <6bf89666-40d3-4772-8add-ef8c33568881@HIDDEN> (bug-gnu-emacs@HIDDEN) Subject: Re: bug#67173: 27.1; support raw string literals in C mode (a GNU C extension) References: <6bf89666-40d3-4772-8add-ef8c33568881@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 67173 Cc: 67173 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Date: Tue, 14 Nov 2023 11:30:53 +0100 > From: Rasmus Villemoes via "Bug reports for GNU Emacs, > the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> > > gcc, when using -std=gnu99 or newer, supports using raw string literals > in C code. But emacs' C mode does not do proper syntax highlighting for > that case. > > I do not know if that can be fixed by simply adding > c-before-change-check-raw-strings to C mode's > c-get-state-before-change-functions. Alan, are you looking into this?
bug-gnu-emacs@HIDDEN:bug#67173; Package emacs.
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envelope-from=rasmus.villemoes@HIDDEN; helo=EUR02-AM0-obe.outbound.protection.outlook.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FORGED_SPF_HELO=1, SPF_HELO_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, T_SPF_PERMERROR=0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Tue, 14 Nov 2023 08:43:47 -0500 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) gcc, when using -std=gnu99 or newer, supports using raw string literals in C code. But emacs' C mode does not do proper syntax highlighting for that case. I do not know if that can be fixed by simply adding c-before-change-check-raw-strings to C mode's c-get-state-before-change-functions. Configured using: 'configure --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --enable-libsystemd --with-pop=yes --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/27.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/27.1/site-lisp:/usr/share/emacs/site-lisp --with-sound=alsa --without-gconf --with-mailutils --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --enable-libsystemd --with-pop=yes --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/27.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/27.1/site-lisp:/usr/share/emacs/site-lisp --with-sound=alsa --without-gconf --with-mailutils --with-cairo --with-x=yes --with-x-toolkit=gtk3 --with-toolkit-scroll-bars 'CFLAGS=-g -O2 -ffile-prefix-map=/build/emacs-WL9mhG/emacs-27.1+1=. -fstack-protector-strong -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro'' Configured features: XPM JPEG TIFF GIF PNG RSVG CAIRO SOUND GPM DBUS GSETTINGS GLIB NOTIFY INOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT LIBOTF ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM MODULES THREADS LIBSYSTEMD JSON PDUMPER LCMS2 GMP Important settings: value of $LANG: en_DK.UTF-8 value of $XMODIFIERS: @im=none locale-coding-system: utf-8-unix Major mode: C/*l Minor modes in effect: shell-dirtrack-mode: t yas-global-mode: t yas-minor-mode: t cscope-minor-mode: t desktop-save-mode: t display-time-mode: t electric-pair-mode: t show-paren-mode: t tooltip-mode: t global-eldoc-mode: t electric-indent-mode: t mouse-wheel-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t size-indication-mode: t column-number-mode: t line-number-mode: t transient-mark-mode: t abbrev-mode: t
Rasmus Villemoes <ravi@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#67173; Package emacs.
Full text available.
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
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