Stefan Kangas <stefankangas@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Received: (at 68863) by debbugs.gnu.org; 14 May 2024 15:52:30 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue May 14 11:52:30 2024 Received: from localhost ([127.0.0.1]:40069 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1s6uS6-0006vh-8H for submit <at> debbugs.gnu.org; Tue, 14 May 2024 11:52:30 -0400 Received: from mout.web.de ([217.72.192.78]:53339) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <michael_heerdegen@HIDDEN>) id 1s6uS3-0006vb-Jo for 68863 <at> debbugs.gnu.org; Tue, 14 May 2024 11:52:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1715701925; x=1716306725; i=michael_heerdegen@HIDDEN; bh=6PrgMYbIxFzj9ayTfs7rLhHbOoCTh3n001Qx/5ocoFU=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date: Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:cc: content-transfer-encoding:content-type:date:from:message-id: mime-version:reply-to:subject:to; b=TEYNTvNFGFTZhmXebBf10XDvh6YYh80rCgkHhePuGkAbN0aKKNC+dA0dUaVdb13A xuOvARECJvaUIKe7sjzYBnlNrP0skOu9bM7109E22o//KkgRKDq74pO5C30+6mDgj DhCSkmeW6wdlkBYCdQl2KXkgmq/xivTNODsnCG7hOKvZUUUWCkgWj8BZydbSzn18T vLR0ygWA291BOu39tmoQVF3rFB0J/ehBOEiYw8rs+DGNxX9tehU9OZaah8nbFLvKl mM7xbbh5gxgxNd6XNNlAcaB0giGVnhMtlhoTuMZEGNM5hefdlscYTd+kOdZipEnF5 Ch+6Gyg5n7JoN7uQlg== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from drachen.dragon ([84.57.248.23]) by smtp.web.de (mrweb105 [213.165.67.124]) with ESMTPSA (Nemesis) id 1MVJRl-1ryUnS1cSF-00MwBE; Tue, 14 May 2024 17:52:05 +0200 From: Michael Heerdegen <michael_heerdegen@HIDDEN> To: Okamsn <okamsn@HIDDEN> Subject: Re: bug#68863: Add support for using setf with seq-subseq In-Reply-To: <538ac066-c421-4c1a-8714-0864917211e6@HIDDEN> (okamsn@HIDDEN's message of "Tue, 14 May 2024 12:47:14 +0000") References: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN> <86y1bvw5ff.fsf@HIDDEN> <jwvmssbqbmx.fsf-monnier+emacs@HIDDEN> <2dfd9d7f-5c63-4e1d-845c-cd245a71fc34@HIDDEN> <8d2a8d06-5b69-4587-9aab-36f7c792c623@HIDDEN> <1fca0de5-236e-428f-9224-b03a4d7d6998@HIDDEN> <5db43ef0-f218-4790-b263-a3eb80929d9b@HIDDEN> <87cypvmb8j.fsf@HIDDEN> <538ac066-c421-4c1a-8714-0864917211e6@HIDDEN> Date: Tue, 14 May 2024 17:52:49 +0200 Message-ID: <87zfssl7am.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K1:dFiEuB9vjORsj/mUf1DLVAmanLAHSuDaywFZitrA9I96/xwP3Re Upwt03NmeXVJP3c65GsEl5ta0hZPviT+Hyo03ROhBl60vOZRfgsb+8OERuNxkj3eHwQ3d3T wsBFc1+eJTDo0gVJ+vixE0chkz6yUv30b3wFtRPjp6nGw4OaH/Uo8v2B9t/mx25RqVFYAdW DPsPWF1j20j2apgv58vng== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:e28/Xo1iIxw=;/rot1KvzHOCH4aTt3/MthjcQMU3 UWjkN3YVQ2xW/3YvYhXznBKZCbl77JYTHSHuxstngVMF94BLQL+P/W11NQ+Q9ob2KneVvlRxH pxek8nzzO4/GNJdRcIqG1+4NJFnhmYWuxFYzJegIxHqU2wU2NO/6Isf6yuKGBP/0rp4tg8g+C i9Hq+gGvlmQFjT/wzw5igdxRmXMsiZl7EjNeumoMOOqqU6GqG63VtlGJaVfkTD8h0AAiE+/Ll KBy+i9ioPUJHvKGwIuCjE/P6k+MFXlU7hwN3l4tT+6FHiaRrYL8wsfjJ6KFve6DcTHcAKuksB JFAP0O/7yZvMRSYqEAzxH1UhwOmFb/KjFeoPSO39c4bpfRyyN92/uXSr5m3d7b/EExN9tYzQr aH17PwF+9Sq15xKSy4jvr52K0Bm136trauPbUflRvYInrJKoDe6s5J6DwZeETw/jyo29tyfcZ oo+0Itku6Ur+xKpcsitCplE5GOltg24LqjwhxCeP9gZaOOkZsAzcRNQCVktGUV47lt+NkHC7d twYZdF9Px1JaofIY9Ci5zFX5crXkYSxQCebzQOBNoa2u9hu+U/N3QCeIMjOr0NLfa4aG4X/Qh condi9Ijx3eiAmxvBKMWniHjoe29CIjENti3GHFZm19jtjlDFzbzPYXwzZMTC1JSmgQ6d0+7j aaXab887LhLkhxY0LJeLjUdEw43+F2CFE25S5mwMydH9VRrjbu3gVC6blZx519OLAYKiCaoAL l5mq+BrEy4+v+gez9BWFIqWfqVdF6GlXLMG5z77GtvRlTeqmt6e/bN56IM4qRSN+4+wfZlC0S 1VCvmVisKuUwqRwoPRV2PJUAq9mfHAxkD62QoIC2/66cM= Content-Transfer-Encoding: quoted-printable X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 68863 Cc: 68863 <at> debbugs.gnu.org, "Okamsn via \"Bug reports for GNU Emacs, the Swiss army knife of text editors\"" <bug-gnu-emacs@HIDDEN>, Eli Zaretskii <eliz@HIDDEN>, Stefan Monnier <monnier@HIDDEN>, Nicolas Petton <nicolas@HIDDEN> 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: -1.7 (-) Okamsn <okamsn@HIDDEN> writes: > Here is what I have thought: > > 1. The setter should be consistent for different kinds of sequences. My > understanding is that arrays cannot be extended, so I think that it > should not be able to extend lists either. I think that something like a > non-destructive `seq-replace` or a non-destructive `seq-splice` is a > separate feature. [...] > 3. The setter should not modify the sequence containing the replacement > values. The manual states: "All functions defined in this library are > free of side-effects; i.e., they do not modify any sequence (list, > vector, or string) that you pass as an argument." I think that it makes > sense for the setter to modify the target sequence, because `setf` is > used to set places to values, but I think that it would be unexpected to > modify the sequence of replacement values and that it would be contrary > to what the manual states and how the other features behave. That's a bit of a contradiction, since when using your patch we do modify the original sequence. That's a reason why your suggestion doesn't fit that well into the current seq.el. But The main question for me is: do we want something like you suggest in seq.el. And, if we do, should we then provide this functionality as a generalized variable. And if we do offer and advertise this explicitly, it must be implemented as efficient as possible (which is not the case now). But I'm stuck with the first question. And my gut feeling is a clear "No". First, I would not provide this as gv but as a normal function. There is no necessity to go the gv way. Second, it doesn't fit into seq.el for the reason you gave: the library promises not to modify sequences. This is not cut in stone, of course. > I will try to find uses of `cl-replace` and maybe uses of `append` and > `nconc` for examples. Also, I have attached a version of the patch that > does not compute the length of the list unless needed. I'm mostly interested in real-life examples where your patch would lead to simpler, better understandable and better maintainable code; and I think Stefan, too. That you need such a functionality for your own code counts but is not enough of its own. You surely could modify your macro to do what you want without changing Emacs. Michael.
bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
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Tue, 14 May 2024 11:52:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1715701925; x=1716306725; i=michael_heerdegen@HIDDEN; bh=6PrgMYbIxFzj9ayTfs7rLhHbOoCTh3n001Qx/5ocoFU=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date: Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:cc: content-transfer-encoding:content-type:date:from:message-id: mime-version:reply-to:subject:to; b=TEYNTvNFGFTZhmXebBf10XDvh6YYh80rCgkHhePuGkAbN0aKKNC+dA0dUaVdb13A xuOvARECJvaUIKe7sjzYBnlNrP0skOu9bM7109E22o//KkgRKDq74pO5C30+6mDgj DhCSkmeW6wdlkBYCdQl2KXkgmq/xivTNODsnCG7hOKvZUUUWCkgWj8BZydbSzn18T vLR0ygWA291BOu39tmoQVF3rFB0J/ehBOEiYw8rs+DGNxX9tehU9OZaah8nbFLvKl mM7xbbh5gxgxNd6XNNlAcaB0giGVnhMtlhoTuMZEGNM5hefdlscYTd+kOdZipEnF5 Ch+6Gyg5n7JoN7uQlg== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from drachen.dragon ([84.57.248.23]) by smtp.web.de (mrweb105 [213.165.67.124]) with ESMTPSA (Nemesis) id 1MVJRl-1ryUnS1cSF-00MwBE; Tue, 14 May 2024 17:52:05 +0200 From: Michael Heerdegen <michael_heerdegen@HIDDEN> To: Okamsn <okamsn@HIDDEN> Subject: Re: bug#68863: Add support for using setf with seq-subseq In-Reply-To: <538ac066-c421-4c1a-8714-0864917211e6@HIDDEN> (okamsn@HIDDEN's message of "Tue, 14 May 2024 12:47:14 +0000") References: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN> <86y1bvw5ff.fsf@HIDDEN> <jwvmssbqbmx.fsf-monnier+emacs@HIDDEN> <2dfd9d7f-5c63-4e1d-845c-cd245a71fc34@HIDDEN> <8d2a8d06-5b69-4587-9aab-36f7c792c623@HIDDEN> <1fca0de5-236e-428f-9224-b03a4d7d6998@HIDDEN> <5db43ef0-f218-4790-b263-a3eb80929d9b@HIDDEN> <87cypvmb8j.fsf@HIDDEN> <538ac066-c421-4c1a-8714-0864917211e6@HIDDEN> Date: Tue, 14 May 2024 17:52:49 +0200 Message-ID: <87zfssl7am.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K1:dFiEuB9vjORsj/mUf1DLVAmanLAHSuDaywFZitrA9I96/xwP3Re Upwt03NmeXVJP3c65GsEl5ta0hZPviT+Hyo03ROhBl60vOZRfgsb+8OERuNxkj3eHwQ3d3T wsBFc1+eJTDo0gVJ+vixE0chkz6yUv30b3wFtRPjp6nGw4OaH/Uo8v2B9t/mx25RqVFYAdW DPsPWF1j20j2apgv58vng== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:e28/Xo1iIxw=;/rot1KvzHOCH4aTt3/MthjcQMU3 UWjkN3YVQ2xW/3YvYhXznBKZCbl77JYTHSHuxstngVMF94BLQL+P/W11NQ+Q9ob2KneVvlRxH pxek8nzzO4/GNJdRcIqG1+4NJFnhmYWuxFYzJegIxHqU2wU2NO/6Isf6yuKGBP/0rp4tg8g+C i9Hq+gGvlmQFjT/wzw5igdxRmXMsiZl7EjNeumoMOOqqU6GqG63VtlGJaVfkTD8h0AAiE+/Ll KBy+i9ioPUJHvKGwIuCjE/P6k+MFXlU7hwN3l4tT+6FHiaRrYL8wsfjJ6KFve6DcTHcAKuksB JFAP0O/7yZvMRSYqEAzxH1UhwOmFb/KjFeoPSO39c4bpfRyyN92/uXSr5m3d7b/EExN9tYzQr aH17PwF+9Sq15xKSy4jvr52K0Bm136trauPbUflRvYInrJKoDe6s5J6DwZeETw/jyo29tyfcZ oo+0Itku6Ur+xKpcsitCplE5GOltg24LqjwhxCeP9gZaOOkZsAzcRNQCVktGUV47lt+NkHC7d twYZdF9Px1JaofIY9Ci5zFX5crXkYSxQCebzQOBNoa2u9hu+U/N3QCeIMjOr0NLfa4aG4X/Qh condi9Ijx3eiAmxvBKMWniHjoe29CIjENti3GHFZm19jtjlDFzbzPYXwzZMTC1JSmgQ6d0+7j aaXab887LhLkhxY0LJeLjUdEw43+F2CFE25S5mwMydH9VRrjbu3gVC6blZx519OLAYKiCaoAL l5mq+BrEy4+v+gez9BWFIqWfqVdF6GlXLMG5z77GtvRlTeqmt6e/bN56IM4qRSN+4+wfZlC0S 1VCvmVisKuUwqRwoPRV2PJUAq9mfHAxkD62QoIC2/66cM= Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=217.72.192.78; envelope-from=michael_heerdegen@HIDDEN; helo=mout.web.de X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.3 (-) X-Debbugs-Envelope-To: submit Cc: 68863 <at> debbugs.gnu.org, "Okamsn via \"Bug reports for GNU Emacs, the Swiss army knife of text editors\"" <bug-gnu-emacs@HIDDEN>, Eli Zaretskii <eliz@HIDDEN>, Stefan Monnier <monnier@HIDDEN>, Nicolas Petton <nicolas@HIDDEN> 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: -2.3 (--) Okamsn <okamsn@HIDDEN> writes: > Here is what I have thought: > > 1. The setter should be consistent for different kinds of sequences. My > understanding is that arrays cannot be extended, so I think that it > should not be able to extend lists either. I think that something like a > non-destructive `seq-replace` or a non-destructive `seq-splice` is a > separate feature. [...] > 3. The setter should not modify the sequence containing the replacement > values. The manual states: "All functions defined in this library are > free of side-effects; i.e., they do not modify any sequence (list, > vector, or string) that you pass as an argument." I think that it makes > sense for the setter to modify the target sequence, because `setf` is > used to set places to values, but I think that it would be unexpected to > modify the sequence of replacement values and that it would be contrary > to what the manual states and how the other features behave. That's a bit of a contradiction, since when using your patch we do modify the original sequence. That's a reason why your suggestion doesn't fit that well into the current seq.el. But The main question for me is: do we want something like you suggest in seq.el. And, if we do, should we then provide this functionality as a generalized variable. And if we do offer and advertise this explicitly, it must be implemented as efficient as possible (which is not the case now). But I'm stuck with the first question. And my gut feeling is a clear "No". First, I would not provide this as gv but as a normal function. There is no necessity to go the gv way. Second, it doesn't fit into seq.el for the reason you gave: the library promises not to modify sequences. This is not cut in stone, of course. > I will try to find uses of `cl-replace` and maybe uses of `append` and > `nconc` for examples. Also, I have attached a version of the patch that > does not compute the length of the list unless needed. I'm mostly interested in real-life examples where your patch would lead to simpler, better understandable and better maintainable code; and I think Stefan, too. That you need such a functionality for your own code counts but is not enough of its own. You surely could modify your macro to do what you want without changing Emacs. Michael.
bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
Full text available.Received: (at 68863) by debbugs.gnu.org; 14 May 2024 12:47:32 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue May 14 08:47:31 2024 Received: from localhost ([127.0.0.1]:39157 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1s6rZ5-0004YS-09 for submit <at> debbugs.gnu.org; Tue, 14 May 2024 08:47:31 -0400 Received: from mail-4322.protonmail.ch ([185.70.43.22]:13867) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <okamsn@HIDDEN>) id 1s6rZ0-0004YK-Ju for 68863 <at> debbugs.gnu.org; Tue, 14 May 2024 08:47:29 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1715690839; x=1715950039; bh=dWWUmQToXMTg1XSBRYOBgqrGmLR1WyCwg/jiPG93Y88=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector; b=hPOEfIAZ2mqLfFPVY3Q/c+EmCkvpiERbbrypjW1QjFjKjI/D6FfcI8g1fHCccCwmo 3p6KacFpIoy6oz9KUFUPGTWsdMU7Bz/FHQuCt0F/dCLFKrw7tjLvLhE8b2lQnF53EA EXXwpCcw8YaFPPH6lP7JIpYeJXKadSZTCs/qD6UlDeeoRD0E5pI3M4j0DzGx408nIu 6Ypf0k376kGHcY2tdSJzOVeVb+Mqtn2NAHY4fkBs2QPFP1Z1rF7zNIkSuiCOLD+Yv6 2uc8K7nTfOxd/ZoHC5DiUoKa9+zFMkbKMFPDHT8zrBO15PekUCM6lwNpChr8tMlV/Z HbaHWFPj6s6sA== Date: Tue, 14 May 2024 12:47:14 +0000 To: Michael Heerdegen <michael_heerdegen@HIDDEN>, "Okamsn via \"Bug reports for GNU Emacs, the Swiss army knife of text editors\"" <bug-gnu-emacs@HIDDEN> From: Okamsn <okamsn@HIDDEN> Subject: Re: bug#68863: Add support for using setf with seq-subseq Message-ID: <538ac066-c421-4c1a-8714-0864917211e6@HIDDEN> In-Reply-To: <87cypvmb8j.fsf@HIDDEN> References: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN> <86y1bvw5ff.fsf@HIDDEN> <jwvmssbqbmx.fsf-monnier+emacs@HIDDEN> <2dfd9d7f-5c63-4e1d-845c-cd245a71fc34@HIDDEN> <8d2a8d06-5b69-4587-9aab-36f7c792c623@HIDDEN> <1fca0de5-236e-428f-9224-b03a4d7d6998@HIDDEN> <5db43ef0-f218-4790-b263-a3eb80929d9b@HIDDEN> <87cypvmb8j.fsf@HIDDEN> Feedback-ID: 25935600:user:proton X-Pm-Message-ID: bca411b429af78b6a3c656de420987a8cacc1314 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="b1_SK6XRgVXZEBNOBJQjOjTpkVopCf1jsIKFNwuD9uR8" X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 68863 Cc: 68863 <at> debbugs.gnu.org, Eli Zaretskii <eliz@HIDDEN>, Nicolas Petton <nicolas@HIDDEN>, Stefan Monnier <monnier@HIDDEN> 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 (-) This is a multi-part message in MIME format. --b1_SK6XRgVXZEBNOBJQjOjTpkVopCf1jsIKFNwuD9uR8 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Michael Heerdegen wrote: > Hello again, >=20 > There is a second point I want to hint at/ discuss: >=20 > Some time ago we have removed lots of or even the majority of the > so far implemented generalized variables. >=20 > The main criteria were: are they useful, and is the semantics clear. We > should think about whether this is the case here. >=20 > For `seq-subseq' the semantics is not completely unambiguous. For > example, the setter could exchange a subsequence - but also simply > insert an additional piece, creating a longer sequence. Both operations > can be useful. >=20 > Likewise, when an index (e.g. the starting position) is going beyond the > end of a sequence, Emacs could raise an error, or provide functionality > to append to the existing sequence. Again, both kinds of behavior could > make sense in different situations. >=20 > Finally, the question of whether the operation is destructive, or which > of the involved sequences are reused, is not trivial. >=20 > Any thoughts about these points? Is this generalized variable useful > enough to make this acceptable? Which kind of implementation do we > prefer then? >=20 >=20 > Michael. Hello, Here is what I have thought: 1. The setter should be consistent for different kinds of sequences. My=20 understanding is that arrays cannot be extended, so I think that it=20 should not be able to extend lists either. I think that something like a=20 non-destructive `seq-replace` or a non-destructive `seq-splice` is a=20 separate feature. 2. The setter should be consistent with how `seq-subseq` raises errors.=20 `seq-subseq` raises an error if a given index is greater than the=20 sequence's length, so the setter should too. 3. The setter should not modify the sequence containing the replacement=20 values. The manual states: "All functions defined in this library are=20 free of side-effects; i.e., they do not modify any sequence (list,=20 vector, or string) that you pass as an argument." I think that it makes=20 sense for the setter to modify the target sequence, because `setf` is=20 used to set places to values, but I think that it would be unexpected to=20 modify the sequence of replacement values and that it would be contrary=20 to what the manual states and how the other features behave. I will try to find uses of `cl-replace` and maybe uses of `append` and=20 `nconc` for examples. Also, I have attached a version of the patch that=20 does not compute the length of the list unless needed. 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bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
Full text available.Received: (at submit) by debbugs.gnu.org; 14 May 2024 12:47:39 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue May 14 08:47:39 2024 Received: from localhost ([127.0.0.1]:39161 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1s6rZC-0004Yg-V8 for submit <at> debbugs.gnu.org; Tue, 14 May 2024 08:47:39 -0400 Received: from lists.gnu.org ([209.51.188.17]:53832) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <okamsn@HIDDEN>) id 1s6rZA-0004YZ-Os for submit <at> debbugs.gnu.org; Tue, 14 May 2024 08:47:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <okamsn@HIDDEN>) id 1s6rZ9-0004LT-Ab for bug-gnu-emacs@HIDDEN; Tue, 14 May 2024 08:47:35 -0400 Received: from mail-4322.protonmail.ch ([185.70.43.22]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <okamsn@HIDDEN>) id 1s6rZ6-0003k2-P8 for bug-gnu-emacs@HIDDEN; Tue, 14 May 2024 08:47:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1715690839; x=1715950039; bh=dWWUmQToXMTg1XSBRYOBgqrGmLR1WyCwg/jiPG93Y88=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector; b=hPOEfIAZ2mqLfFPVY3Q/c+EmCkvpiERbbrypjW1QjFjKjI/D6FfcI8g1fHCccCwmo 3p6KacFpIoy6oz9KUFUPGTWsdMU7Bz/FHQuCt0F/dCLFKrw7tjLvLhE8b2lQnF53EA EXXwpCcw8YaFPPH6lP7JIpYeJXKadSZTCs/qD6UlDeeoRD0E5pI3M4j0DzGx408nIu 6Ypf0k376kGHcY2tdSJzOVeVb+Mqtn2NAHY4fkBs2QPFP1Z1rF7zNIkSuiCOLD+Yv6 2uc8K7nTfOxd/ZoHC5DiUoKa9+zFMkbKMFPDHT8zrBO15PekUCM6lwNpChr8tMlV/Z HbaHWFPj6s6sA== Date: Tue, 14 May 2024 12:47:14 +0000 To: Michael Heerdegen <michael_heerdegen@HIDDEN>, "Okamsn via \"Bug reports for GNU Emacs, the Swiss army knife of text editors\"" <bug-gnu-emacs@HIDDEN> From: Okamsn <okamsn@HIDDEN> Subject: Re: bug#68863: Add support for using setf with seq-subseq Message-ID: <538ac066-c421-4c1a-8714-0864917211e6@HIDDEN> In-Reply-To: <87cypvmb8j.fsf@HIDDEN> References: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN> <86y1bvw5ff.fsf@HIDDEN> <jwvmssbqbmx.fsf-monnier+emacs@HIDDEN> <2dfd9d7f-5c63-4e1d-845c-cd245a71fc34@HIDDEN> <8d2a8d06-5b69-4587-9aab-36f7c792c623@HIDDEN> <1fca0de5-236e-428f-9224-b03a4d7d6998@HIDDEN> <5db43ef0-f218-4790-b263-a3eb80929d9b@HIDDEN> <87cypvmb8j.fsf@HIDDEN> Feedback-ID: 25935600:user:proton X-Pm-Message-ID: bca411b429af78b6a3c656de420987a8cacc1314 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="b1_SK6XRgVXZEBNOBJQjOjTpkVopCf1jsIKFNwuD9uR8" Received-SPF: pass client-ip=185.70.43.22; envelope-from=okamsn@HIDDEN; helo=mail-4322.protonmail.ch X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, FREEMAIL_FROM=0.001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.3 (-) X-Debbugs-Envelope-To: submit Cc: 68863 <at> debbugs.gnu.org, Eli Zaretskii <eliz@HIDDEN>, Nicolas Petton <nicolas@HIDDEN>, Stefan Monnier <monnier@HIDDEN> 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: -2.3 (--) This is a multi-part message in MIME format. --b1_SK6XRgVXZEBNOBJQjOjTpkVopCf1jsIKFNwuD9uR8 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Michael Heerdegen wrote: > Hello again, >=20 > There is a second point I want to hint at/ discuss: >=20 > Some time ago we have removed lots of or even the majority of the > so far implemented generalized variables. >=20 > The main criteria were: are they useful, and is the semantics clear. We > should think about whether this is the case here. >=20 > For `seq-subseq' the semantics is not completely unambiguous. For > example, the setter could exchange a subsequence - but also simply > insert an additional piece, creating a longer sequence. Both operations > can be useful. >=20 > Likewise, when an index (e.g. the starting position) is going beyond the > end of a sequence, Emacs could raise an error, or provide functionality > to append to the existing sequence. Again, both kinds of behavior could > make sense in different situations. >=20 > Finally, the question of whether the operation is destructive, or which > of the involved sequences are reused, is not trivial. >=20 > Any thoughts about these points? Is this generalized variable useful > enough to make this acceptable? Which kind of implementation do we > prefer then? >=20 >=20 > Michael. Hello, Here is what I have thought: 1. The setter should be consistent for different kinds of sequences. My=20 understanding is that arrays cannot be extended, so I think that it=20 should not be able to extend lists either. I think that something like a=20 non-destructive `seq-replace` or a non-destructive `seq-splice` is a=20 separate feature. 2. The setter should be consistent with how `seq-subseq` raises errors.=20 `seq-subseq` raises an error if a given index is greater than the=20 sequence's length, so the setter should too. 3. The setter should not modify the sequence containing the replacement=20 values. The manual states: "All functions defined in this library are=20 free of side-effects; i.e., they do not modify any sequence (list,=20 vector, or string) that you pass as an argument." I think that it makes=20 sense for the setter to modify the target sequence, because `setf` is=20 used to set places to values, but I think that it would be unexpected to=20 modify the sequence of replacement values and that it would be contrary=20 to what the manual states and how the other features behave. I will try to find uses of `cl-replace` and maybe uses of `append` and=20 `nconc` for examples. Also, I have attached a version of the patch that=20 does not compute the length of the list unless needed. Thank you. --b1_SK6XRgVXZEBNOBJQjOjTpkVopCf1jsIKFNwuD9uR8 Content-Type: text/x-patch; charset=UTF-8; name=v4-0001-Add-setf-support-for-seq-subseq.patch Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename=v4-0001-Add-setf-support-for-seq-subseq.patch RnJvbSA4OWM2ODAwZTRlNzg4ZDZhMTIxMTE0YmMxNmY0N2UxYmJjMmVlODE0IE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBFYXJsIEh5YXR0IDxva2Ftc25AcHJvdG9ubWFpbC5jb20+CkRh dGU6IFN1biwgMjggSmFuIDIwMjQgMjI6NDg6MTMgLTA1MDAKU3ViamVjdDogW1BBVENIIHY0XSBB ZGQgc2V0ZiBzdXBwb3J0IGZvciBzZXEtc3Vic2VxLgoKKiBsaXNwL2VtYWNzLWxpc3Avc2VxLmVs IChzZXEtc3Vic2VxKTogQWRkIGEgZ2VuZXJpYyB2ZXJzaW9uIG9mCmNhbGxpbmcgc2V0ZiBvbiBz ZXEtc3Vic2VxIGFuZCBhZGQgYSBzcGVjaWFsaXplZCB2ZXJzaW9uIGZvciB3aGVuIHRoZQptb2Rp ZmllZCBzZXF1ZW5jZSBpcyBhIGxpc3QuCiogdGVzdC9saXNwL2VtYWNzLWxpc3Avc2VxLXRlc3Rz LmVsICh0ZXN0LXNldGYtc2VxLXN1YnNlcSkKKHRlc3Qtc2V0Zi1zZXEtc3Vic2VxLWNvbWJpbmF0 aW9ucyk6IEFkZCB0ZXN0cyBmb3IgdGhlIGZlYXR1cmUuCgpUaGUgZmVhdHVyZSB3aWxsIHNpZ25h 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bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
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From: Stefan Monnier <monnier@HIDDEN>
To: Michael Heerdegen <michael_heerdegen@HIDDEN>
Subject: Re: bug#68863: Add support for using setf with seq-subseq
In-Reply-To: <87cypvmb8j.fsf@HIDDEN> (Michael Heerdegen's message of "Thu, 09
May 2024 14:16:28 +0200")
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> Some time ago we have removed lots of or even the majority of the
> so far implemented generalized variables.
>
> The main criteria were: are they useful, and is the semantics clear. We
> should think about whether this is the case here.
Agreed. We should not lose track of the fact that we're talking about
"generalized variables". Treating `(seq-subset ...)` as a "generalized
variable" (aka a "place") is stretching the idea, which we can see in the
fact that there are several different alternative ways to implement the
feature with incompatible semantics.
IOW, as a general rule a function that returns a fresh new value is
often not a good candidate for a "gv-place". That doesn't mean we can't
accept such a change (I'm pretty sure we do have and (ab)use such
gv-places), but that it has to be weighed against its practical
usefulness.
IOW, I'd like to see existing code where we could make use of it to
simplify the code. That might also help decide decide which semantics
would be preferable.
Stefan
bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
Full text available.Received: (at 68863) by debbugs.gnu.org; 9 May 2024 12:16:28 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu May 09 08:16:28 2024 Received: from localhost ([127.0.0.1]:54981 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1s52hH-0001ko-Vn for submit <at> debbugs.gnu.org; Thu, 09 May 2024 08:16:28 -0400 Received: from mout.web.de ([212.227.15.14]:47567) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <michael_heerdegen@HIDDEN>) id 1s52hF-0001kC-SE for 68863 <at> debbugs.gnu.org; Thu, 09 May 2024 08:16:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1715256946; x=1715861746; i=michael_heerdegen@HIDDEN; bh=Gtk1t4Iao6ld/oJOVMHD0byfmfLJZC6VUeYgKRmq/ZE=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date: Message-ID:MIME-Version:Content-Type:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=KavFJpz0gHSFHBP4VpnYObxIM81+r1mcGmu7g5tOQy71yvzmWyXiWMrfdSmi78Fy oUSMeT2S3C88BtjQ8woG2glIHaTAcdbG5CdXmpW8X7Wb2HYcfb2riEhggSpE2YVhn XG0OIydi1pYpha6MFagkFJIos+w9ciczYankVLoQvOy50+9T8PCjPFriyHd04hbOd nV5kuXQb+KrcXmGgbqOdBJNk4SfYcMhKkJQN1hx+kR7csY1dGX9BI/ryXtNvS/mLJ fo1Iahcq79N6xxPtwlMaxoiJPU2W5B470hmb0E8Kr1Nxx5qPOcpLazsfILJY34RCg UjWxoPFviOBgjsk3Nw== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from drachen.dragon ([84.57.248.23]) by smtp.web.de (mrweb006 [213.165.67.108]) with ESMTPSA (Nemesis) id 1MuVKI-1swJnP3X9e-00rQsf; Thu, 09 May 2024 14:15:45 +0200 From: Michael Heerdegen <michael_heerdegen@HIDDEN> To: Okamsn via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> Subject: Re: bug#68863: Add support for using setf with seq-subseq In-Reply-To: <5db43ef0-f218-4790-b263-a3eb80929d9b@HIDDEN> (Okamsn via's message of "Tue, 07 May 2024 01:45:44 +0000") References: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN> <86y1bvw5ff.fsf@HIDDEN> <jwvmssbqbmx.fsf-monnier+emacs@HIDDEN> <2dfd9d7f-5c63-4e1d-845c-cd245a71fc34@HIDDEN> <8d2a8d06-5b69-4587-9aab-36f7c792c623@HIDDEN> <1fca0de5-236e-428f-9224-b03a4d7d6998@HIDDEN> <5db43ef0-f218-4790-b263-a3eb80929d9b@HIDDEN> Date: Thu, 09 May 2024 14:16:28 +0200 Message-ID: <87cypvmb8j.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K1:BPbcV0rbnUDaQTPMSdCkerMUGhKd95klxxPXGEY+1rIWCN8aHTo VpLGOdRmsxL30isjgqLbzlLBb0xyTVkIoXwXtCGc3BEQqidz+HpMkkIdP+Nu+sntO4uw3GI /s4u14ykUHbz/UeDWmgRazayeb4RHWOni6WHg+OtH9QK0tSO2HFyePUBP2ASGmwBmcnWXUm /iYknzmh3bxADIsTFdpCg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:DePAfU/UItY=;+IXPQ/fqVg4qU9LQpAYcqon1f4r PfxQPg6XPzxqxYYGePXjAXxI3T2vqn0su+EJmW8hQhQ8tSTqQbtNF2cpPu8rdaQlgGCuRXNUE +BnIFOPk7oHADbfhJGomMmNOJJrhVDdd2PJvETVA+Q49xJcKpyUA+RdDubmbJn/tm7gKyohyL Z2UbpkipIVL76Tw/17T/kRNoBE3se9E0P/sCa0znRmzVLbx+WfufeSSDiaiM0tlbvOw6ls7A4 wJuY7NKG1TYpxK3dtHiZthj4sK0jZOG3xDTgdffhnR/dyxIQK1OiRDKyJ9UUKX0MOZq1ljzXG HBqHLu8wHX6VAz1sc1+eJPWsM6mNprJpAWopTCNOwRs82CrOcz0ZTHAyP5kVanWN5ZkxyYnL9 GbvoBt+ONNrjhoe2dbQBItC5ccuLj/nv+ZLJBJ04IfQM3MN0V7CAzO2LsRga5FV9Ln3xci5QO 5YtH20/GrYdX58faQv4f1l3UiXalMA8qZAY3WymvWER3fwIPthbjXCVRkQrmAxFlpx1c81p43 S0KINY5qeCUlVkhccqMNVLSEutGtFQZJVD9qFp5JJTCSyyzcltmR6ZlsZvU40w0TYUDaLKspf zNhth4stuAVQPNQ0AgnrNpExiSvwOmt08z4MrwhH83j/S5dneJ2/1PUO8FPqzermCXbS4xs5n GI8yR5ai3KmXmQZuyWJ1gjM3qCwTvUYzTf9fF8MoBsL1/DaB62GUnE8vt7h4EedvqpgNDx4wD Hs0HQYOtbGu35s/MHgc09hjxPxku3fYdt4eQR90DV04N290TCbJiGi7YJxHbS2tBMPsYJ/sH7 syamHu2E8k9YWG1gjEvMJ3iNxPAYq3IAE1huzVStthYSM= X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 68863 Cc: Okamsn <okamsn@HIDDEN>, 68863 <at> debbugs.gnu.org, Eli Zaretskii <eliz@HIDDEN>, Nicolas Petton <nicolas@HIDDEN>, Stefan Monnier <monnier@HIDDEN> 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: -1.7 (-) Hello again, There is a second point I want to hint at/ discuss: Some time ago we have removed lots of or even the majority of the so far implemented generalized variables. The main criteria were: are they useful, and is the semantics clear. We should think about whether this is the case here. For `seq-subseq' the semantics is not completely unambiguous. For example, the setter could exchange a subsequence - but also simply insert an additional piece, creating a longer sequence. Both operations can be useful. Likewise, when an index (e.g. the starting position) is going beyond the end of a sequence, Emacs could raise an error, or provide functionality to append to the existing sequence. Again, both kinds of behavior could make sense in different situations. Finally, the question of whether the operation is destructive, or which of the involved sequences are reused, is not trivial. Any thoughts about these points? Is this generalized variable useful enough to make this acceptable? Which kind of implementation do we prefer then? Michael.
bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
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Thu, 09 May 2024 08:16:05 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1715256946; x=1715861746; i=michael_heerdegen@HIDDEN; bh=Gtk1t4Iao6ld/oJOVMHD0byfmfLJZC6VUeYgKRmq/ZE=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date: Message-ID:MIME-Version:Content-Type:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=KavFJpz0gHSFHBP4VpnYObxIM81+r1mcGmu7g5tOQy71yvzmWyXiWMrfdSmi78Fy oUSMeT2S3C88BtjQ8woG2glIHaTAcdbG5CdXmpW8X7Wb2HYcfb2riEhggSpE2YVhn XG0OIydi1pYpha6MFagkFJIos+w9ciczYankVLoQvOy50+9T8PCjPFriyHd04hbOd nV5kuXQb+KrcXmGgbqOdBJNk4SfYcMhKkJQN1hx+kR7csY1dGX9BI/ryXtNvS/mLJ fo1Iahcq79N6xxPtwlMaxoiJPU2W5B470hmb0E8Kr1Nxx5qPOcpLazsfILJY34RCg UjWxoPFviOBgjsk3Nw== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from drachen.dragon ([84.57.248.23]) by smtp.web.de (mrweb006 [213.165.67.108]) with ESMTPSA (Nemesis) id 1MuVKI-1swJnP3X9e-00rQsf; Thu, 09 May 2024 14:15:45 +0200 From: Michael Heerdegen <michael_heerdegen@HIDDEN> To: Okamsn via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> Subject: Re: bug#68863: Add support for using setf with seq-subseq In-Reply-To: <5db43ef0-f218-4790-b263-a3eb80929d9b@HIDDEN> (Okamsn via's message of "Tue, 07 May 2024 01:45:44 +0000") References: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN> <86y1bvw5ff.fsf@HIDDEN> <jwvmssbqbmx.fsf-monnier+emacs@HIDDEN> <2dfd9d7f-5c63-4e1d-845c-cd245a71fc34@HIDDEN> <8d2a8d06-5b69-4587-9aab-36f7c792c623@HIDDEN> <1fca0de5-236e-428f-9224-b03a4d7d6998@HIDDEN> <5db43ef0-f218-4790-b263-a3eb80929d9b@HIDDEN> Date: Thu, 09 May 2024 14:16:28 +0200 Message-ID: <87cypvmb8j.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K1:BPbcV0rbnUDaQTPMSdCkerMUGhKd95klxxPXGEY+1rIWCN8aHTo VpLGOdRmsxL30isjgqLbzlLBb0xyTVkIoXwXtCGc3BEQqidz+HpMkkIdP+Nu+sntO4uw3GI /s4u14ykUHbz/UeDWmgRazayeb4RHWOni6WHg+OtH9QK0tSO2HFyePUBP2ASGmwBmcnWXUm /iYknzmh3bxADIsTFdpCg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:DePAfU/UItY=;+IXPQ/fqVg4qU9LQpAYcqon1f4r PfxQPg6XPzxqxYYGePXjAXxI3T2vqn0su+EJmW8hQhQ8tSTqQbtNF2cpPu8rdaQlgGCuRXNUE +BnIFOPk7oHADbfhJGomMmNOJJrhVDdd2PJvETVA+Q49xJcKpyUA+RdDubmbJn/tm7gKyohyL Z2UbpkipIVL76Tw/17T/kRNoBE3se9E0P/sCa0znRmzVLbx+WfufeSSDiaiM0tlbvOw6ls7A4 wJuY7NKG1TYpxK3dtHiZthj4sK0jZOG3xDTgdffhnR/dyxIQK1OiRDKyJ9UUKX0MOZq1ljzXG HBqHLu8wHX6VAz1sc1+eJPWsM6mNprJpAWopTCNOwRs82CrOcz0ZTHAyP5kVanWN5ZkxyYnL9 GbvoBt+ONNrjhoe2dbQBItC5ccuLj/nv+ZLJBJ04IfQM3MN0V7CAzO2LsRga5FV9Ln3xci5QO 5YtH20/GrYdX58faQv4f1l3UiXalMA8qZAY3WymvWER3fwIPthbjXCVRkQrmAxFlpx1c81p43 S0KINY5qeCUlVkhccqMNVLSEutGtFQZJVD9qFp5JJTCSyyzcltmR6ZlsZvU40w0TYUDaLKspf zNhth4stuAVQPNQ0AgnrNpExiSvwOmt08z4MrwhH83j/S5dneJ2/1PUO8FPqzermCXbS4xs5n GI8yR5ai3KmXmQZuyWJ1gjM3qCwTvUYzTf9fF8MoBsL1/DaB62GUnE8vt7h4EedvqpgNDx4wD Hs0HQYOtbGu35s/MHgc09hjxPxku3fYdt4eQR90DV04N290TCbJiGi7YJxHbS2tBMPsYJ/sH7 syamHu2E8k9YWG1gjEvMJ3iNxPAYq3IAE1huzVStthYSM= Received-SPF: pass client-ip=212.227.15.14; envelope-from=michael_heerdegen@HIDDEN; helo=mout.web.de X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: submit Cc: Okamsn <okamsn@HIDDEN>, 68863 <at> debbugs.gnu.org, Eli Zaretskii <eliz@HIDDEN>, Nicolas Petton <nicolas@HIDDEN>, Stefan Monnier <monnier@HIDDEN> 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 again, There is a second point I want to hint at/ discuss: Some time ago we have removed lots of or even the majority of the so far implemented generalized variables. The main criteria were: are they useful, and is the semantics clear. We should think about whether this is the case here. For `seq-subseq' the semantics is not completely unambiguous. For example, the setter could exchange a subsequence - but also simply insert an additional piece, creating a longer sequence. Both operations can be useful. Likewise, when an index (e.g. the starting position) is going beyond the end of a sequence, Emacs could raise an error, or provide functionality to append to the existing sequence. Again, both kinds of behavior could make sense in different situations. Finally, the question of whether the operation is destructive, or which of the involved sequences are reused, is not trivial. Any thoughts about these points? Is this generalized variable useful enough to make this acceptable? Which kind of implementation do we prefer then? Michael.
bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
Full text available.Received: (at 68863) by debbugs.gnu.org; 8 May 2024 21:01:23 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed May 08 17:01:23 2024 Received: from localhost ([127.0.0.1]:50868 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1s4oPj-0003BI-D7 for submit <at> debbugs.gnu.org; Wed, 08 May 2024 17:01:23 -0400 Received: from mout.web.de ([212.227.15.3]:43793) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <michael_heerdegen@HIDDEN>) id 1s4oPf-0003B3-8b for 68863 <at> debbugs.gnu.org; Wed, 08 May 2024 17:01:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1715202039; x=1715806839; i=michael_heerdegen@HIDDEN; bh=rwMxKDeDStOzzYQ/Cqzdv+Y5q+OadjD02S61O2ZvoVw=; h=X-UI-Sender-Class:From:To:Cc:Subject:In-Reply-To:References:Date: Message-ID:MIME-Version:Content-Type:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=G6KKo+tNeuldsqKa/S0/umDwbEU70X7x0rI2i5Fq4OslcYtF6R+RGFsKmmj8AvjJ UmuyK88zoXMVZNPR9gFSlsntKGznwbC8iZ0+sevIKsjYq1mvYZPyKRM1cIXxH2eMf 4v10zmJJDczZvtiOYS/RGEyxYMlPszHuEfudpGucLD4OEAQzvLdGABkS40qzbmZ29 35YS4WOrBulDxbyx36AKzL6bWDaFPmGAnubgvQkGa/EioJVj2zQqyXjMCQlMdpGKY 9w9ORwlM+06cRycSDjgeuLpoNrWBBXMT2HiKBPJWhfsLZ+PSUtdC82AOOyzNauq/j coJbYXTWehfL/G47JA== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from drachen.dragon ([84.57.248.23]) by smtp.web.de (mrweb006 [213.165.67.108]) with ESMTPSA (Nemesis) id 1N8Epo-1siBWx2rg0-0146EW; Wed, 08 May 2024 23:00:39 +0200 From: Michael Heerdegen <michael_heerdegen@HIDDEN> To: Okamsn <okamsn@HIDDEN> Subject: Re: bug#68863: Add support for using setf with seq-subseq In-Reply-To: <5db43ef0-f218-4790-b263-a3eb80929d9b@HIDDEN> (okamsn@HIDDEN's message of "Tue, 07 May 2024 01:45:44 +0000") References: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN> <86y1bvw5ff.fsf@HIDDEN> <jwvmssbqbmx.fsf-monnier+emacs@HIDDEN> <2dfd9d7f-5c63-4e1d-845c-cd245a71fc34@HIDDEN> <8d2a8d06-5b69-4587-9aab-36f7c792c623@HIDDEN> <1fca0de5-236e-428f-9224-b03a4d7d6998@HIDDEN> <5db43ef0-f218-4790-b263-a3eb80929d9b@HIDDEN> Date: Wed, 08 May 2024 23:01:22 +0200 Message-ID: <87msp0f271.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K1:L9l9xCr2g7olPLO31zMmHSTWIn0LpJNGSPe7imAbRBeXjYHc1Y/ CYeU++YbfIBKO5l4UCtHMD1La0oqI3HxwPLFoR2a0nMTLd/W7tKVHGF1qhXMVqXUXLvljbO JDA9jNcBg2LNOwXrgTXP0h9ABY7UK3PLkYbAmOuo5SVi/W5WkIUnUJEaQFilIHWr6y7JrRF W+40BlRXxlLdJYEjQGhTg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:U0CcDwkOcso=;aujmz+EXYhpBBw4n3272e5j9ZFF 0Ad+v3PJOINgIa83wX+Ki9JvIUt9tg2gQT5D60fJVr4SCOR17UghkKPN9W6I30DGAJyUvat0K bukObyHZWGBg0C3HJFTaaUdDTYN49ri+Z1lOnlC2q50JQHolpJKK7WFhpzdmgeJSlBTIYYvt0 3n3/I2DTqyP/uaHT7PenBnHbDGeP4BUpmF/5hZsKLhkDjeK5DWo1o974UjNdPVrzb61j4RF82 85CVeBhFpofC0M/lZm2D3asiJMnZ3WFV0YtdI+araw8YdcQPLfs1Wu8/QqZhKPkVx9GEfAnjR MbnXpis2GU95d7qFQgLhk/QoYe5dKbh/niqHlpXT3lsxmUjTsBUvr8aOlNw4RYvr5dyx5ci1F xVm9DjxPKO1h4RrXnA1PaiKeXcKMr5gt0OekRSG1OddJZEQ4t9m5g2ZjX3RSeYS7/NHbgiwHp XJD90cmQ7eCaOKTExGn5eurETdINKoxXZk+uz/9w+vhXH+fyjcEDLHQ8zxLbxcA6E6NcgFqB6 GBIBHR5r/L3DX9NwzDsYyOqiXlG2H7KTQBemqx4vgitI6VxjdAlLhpXJ0rZ28itanhwn2I+kE pk38VokBxKajkf8CjoNGtksDjcAjo9aetfFjfrN49Nk+YL0wQVq1UkmBq9j8EcOYefP3Ho7HD L4fdT2mcRskWMdzy0eGenVIkAAtUdYWkHRF9En9rJ7JtG4mxOwIwylv/YjQCur/G+B6zEjp4Y mXCM6PnDfMKpsQfzvT3JgpszWy7TcHmvryZOFlc/HF9hLf4SebFkQ1PrW5GyG+kxynLpxvz9x Y5qWmlQp5o3zZIcBnPOaUUIFke7azz+qDfnpq0Ds+7Ufo= X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 68863 Cc: 68863 <at> debbugs.gnu.org, Eli Zaretskii <eliz@HIDDEN>, Nicolas Petton <nicolas@HIDDEN>, Stefan Monnier <monnier@HIDDEN> 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: -1.7 (-) Okamsn <okamsn@HIDDEN> writes: > Subject: [PATCH v2] Add setf support for seq-subseq. Thank you for the update. I wonder about the implementation for listp STOREs: > +(cl-defmethod (setf seq-subseq) (store (sequence list) start &optional end) > + "Modify the elements of SEQUENCE from START to END to be those of STORE. > +END is exclusive. > + > +If END is omitted, it defaults to the length of the sequence. If > +START or END is negative, it counts from the end. [...] In the case where we don't count from the end: > +error if START or END are outside of the sequence (i.e too large > +if positive or too small if negative). > + > +SEQUENCE is neither lengthened nor shortened." > + (let* ((len (seq-length sequence)) running through the complete list just to get its length which we don't need is a waste of time - right? > + (catch tag > + (seq-do (let ((replaced (nthcdr idx sequence))) > + (lambda (v) > + (if (< idx idx-end) > + (setf (car replaced) v > + replaced (cdr replaced) > + idx (1+ idx)) > + (throw tag nil)))) > + store)))) > + store) And wouldn't it here be more efficient to use `setcar' and `setcdr' manipulations to insert the complete sequence (if it's a list, else we may convert it into one) in one go instead of replacing elements one by one? Thanks, Michael.
bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
Full text available.Received: (at 68863) by debbugs.gnu.org; 7 May 2024 01:46:25 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon May 06 21:46:25 2024 Received: from localhost ([127.0.0.1]:41371 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1s49uS-00020j-Jv for submit <at> debbugs.gnu.org; Mon, 06 May 2024 21:46:25 -0400 Received: from mail-4316.protonmail.ch ([185.70.43.16]:22229) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <okamsn@HIDDEN>) id 1s49uP-00020d-FX for 68863 <at> debbugs.gnu.org; Mon, 06 May 2024 21:46:23 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1715046350; x=1715305550; bh=AxiiZdYt2Qh+KDerGgjUYyDk0K4t96d9KZEG1+huqT0=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector; b=YiOnvvU8K/EKHKMg5QcsXYiYzX69wunooGPf/tsn5aC2thCQFTMd+q5ua0GqVL7eu 8zHo4Icat+62wep+BUfm1wb7n9DcQe3neHDqElsxu0/Pn0pDskC0CDj5VeRaGZhyNt YKLlUnD1vh8pcn77EB/MX9hwOk0JmJHUdIPQ746OKu2FfN+p0ZpbfefpGxmqMPHhX8 juEVXcGOUrwvVtlFRmTPyFKQBFH2sL1b6YN9jxqpJEVkLveU3dUDqj2K47r3AfwjqG vdWtXsePOG1pCn0a8upd39PaSP50ZdhPRT+s25kuydy4q594pEcNcVEi2qiNKollr+ MoWHXEzv8+FgA== Date: Tue, 07 May 2024 01:45:44 +0000 To: Stefan Monnier <monnier@HIDDEN>, Eli Zaretskii <eliz@HIDDEN>, Michael Heerdegen <michael_heerdegen@HIDDEN> From: Okamsn <okamsn@HIDDEN> Subject: Re: bug#68863: Add support for using setf with seq-subseq Message-ID: <5db43ef0-f218-4790-b263-a3eb80929d9b@HIDDEN> In-Reply-To: <1fca0de5-236e-428f-9224-b03a4d7d6998@HIDDEN> References: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN> <86y1bvw5ff.fsf@HIDDEN> <jwvmssbqbmx.fsf-monnier+emacs@HIDDEN> <2dfd9d7f-5c63-4e1d-845c-cd245a71fc34@HIDDEN> <8d2a8d06-5b69-4587-9aab-36f7c792c623@HIDDEN> <1fca0de5-236e-428f-9224-b03a4d7d6998@HIDDEN> Feedback-ID: 25935600:user:proton X-Pm-Message-ID: 1eb6f2d8570ebaec82b086557c7e16cef7c62038 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="b1_GIc4IVwxZm5sYzB3lhXoalCoZgTokRfnuyovSfYuFc" X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 68863 Cc: 68863 <at> debbugs.gnu.org, Nicolas Petton <nicolas@HIDDEN> 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 (-) This is a multi-part message in MIME format. --b1_GIc4IVwxZm5sYzB3lhXoalCoZgTokRfnuyovSfYuFc Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Okamsn wrote: > Okamsn wrote: >> Hello, >> >> After testing it more, I see that what I've written does not work as I >> expected in the case >> >> (let ((v (vector (vector 0 1) >> (vector 2 3) >> (vector 4 5)))) >> (setf (seq-subseq (seq-subseq (elt v 0) 0) 0) >> [10]) >> v) >> >> in which I would expect it to replace the first element of the first >> sub-vector with 10. I will take more time to continue working on this. >> >> Thank you for your patience. >> >> >=20 > Hello, >=20 > I found a way to work with subplaces, like in the example in my previous > e-mail message. Instead of creating the generic feature `(setf > seq-subseq)` like what is done for `seq-elt`, I created a generic > function `seq-replace`, which is used in a new `gv-expander` for > `seq-subseq`. This way of doing it is like what is done for `substring`, > which has the behavior that I wanted. >=20 > What do you think about this approach? >=20 > Thank you. Hello, Since supporting sub-places is controversial, would you please review=20 version 2 of the patch that I sent, which I have re-attached for=20 convenience. This version /does not/ support sub-places. I have added Michael Heerdegen to the recipients list in case they would=20 like to comment. 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bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
Full text available.Received: (at 68863) by debbugs.gnu.org; 18 Apr 2024 02:55:16 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Apr 17 22:55:16 2024 Received: from localhost ([127.0.0.1]:49575 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1rxHve-0004zU-RI for submit <at> debbugs.gnu.org; Wed, 17 Apr 2024 22:55:16 -0400 Received: from mail-40133.protonmail.ch ([185.70.40.133]:19787) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <okamsn@HIDDEN>) id 1rxHvb-0004yY-SB for 68863 <at> debbugs.gnu.org; Wed, 17 Apr 2024 22:55:13 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1713408892; x=1713668092; bh=UaBsVk0PzlNPV8QffxMh0bd7JGVLUd4ckSBM/b+wS1o=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector; b=zKmmELW+ZJiTVaWr5ciDGfEgRqzpAsEF5s5leBKo9jl+gqjvBvZRIfmw2/4qDnh5x hWXvVcBGzb/CVCrEXFQdKROtDKiWS3XA0VIE14Ut9QTHhImW+lLELh1216R0bwB7Yw GKRNGeWV+xotki/or8gZFFsSkFHIGdzKFS+eZMydW1jXBVyO+9kwQJtY9IY3+n43U8 C7b236/B1V9jJigTqsDt3e+lBZNtT9zHplT5Sz8Sq108wEb4V20xi65wR+w6BMjrJi 1OIuoZuKxeVQAspAQmJ2lXe57orVC4jVD0w23I451wzQZkxZ6KBJoTysBs5YVMSvfa khnaqPTM6lywg== Date: Thu, 18 Apr 2024 02:54:46 +0000 To: Stefan Monnier <monnier@HIDDEN>, Eli Zaretskii <eliz@HIDDEN> From: Okamsn <okamsn@HIDDEN> Subject: Re: bug#68863: Add support for using setf with seq-subseq Message-ID: <1fca0de5-236e-428f-9224-b03a4d7d6998@HIDDEN> In-Reply-To: <8d2a8d06-5b69-4587-9aab-36f7c792c623@HIDDEN> References: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN> <86y1bvw5ff.fsf@HIDDEN> <jwvmssbqbmx.fsf-monnier+emacs@HIDDEN> <2dfd9d7f-5c63-4e1d-845c-cd245a71fc34@HIDDEN> <8d2a8d06-5b69-4587-9aab-36f7c792c623@HIDDEN> Feedback-ID: 25935600:user:proton MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="b1_Pe2x6QukYaYI9CWYXi3IIxLnEctI7SEQA9dpZ8eW1s" X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 68863 Cc: 68863 <at> debbugs.gnu.org, Nicolas Petton <nicolas@HIDDEN> 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 (-) This is a multi-part message in MIME format. --b1_Pe2x6QukYaYI9CWYXi3IIxLnEctI7SEQA9dpZ8eW1s Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Okamsn wrote: > Hello, >=20 > After testing it more, I see that what I've written does not work as I > expected in the case >=20 > (let ((v (vector (vector 0 1) > (vector 2 3) > (vector 4 5)))) > (setf (seq-subseq (seq-subseq (elt v 0) 0) 0) > [10]) > v) >=20 > in which I would expect it to replace the first element of the first > sub-vector with 10. I will take more time to continue working on this. >=20 > Thank you for your patience. >=20 >=20 Hello, I found a way to work with subplaces, like in the example in my previous=20 e-mail message. Instead of creating the generic feature `(setf=20 seq-subseq)` like what is done for `seq-elt`, I created a generic=20 function `seq-replace`, which is used in a new `gv-expander` for=20 `seq-subseq`. This way of doing it is like what is done for `substring`,=20 which has the behavior that I wanted. What do you think about this approach? 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bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
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Date: Wed, 14 Feb 2024 02:50:29 +0000
To: Stefan Monnier <monnier@HIDDEN>, Eli Zaretskii <eliz@HIDDEN>
From: Okamsn <okamsn@HIDDEN>
Subject: Re: bug#68863: Add support for using setf with seq-subseq
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Okamsn wrote:
> Stefan Monnier wrote:
>>>> To avoid modifying more values than specified, that modifying function
>>>> uses a `when` condition. I'm not sure of a good way to stop `seq-do`
>>>> early when we know that it can stop calling the modifying function.
>>>> Normally, I would use `cl-block` and `cl-return`. Is it OK to use thos=
e
>>>> features in `seq.el`? If not, is it worth adding something like a
>>>> `seq-map-while` or a `seq-do-while`?
>>
>> `seq.el` is used by some parts of the implementation of `cl-lib`, so
>> the use of `cl-lib` risks introducing a circular dependency. Maybe usin=
g
>> `cl-block/return` would be OK, but I wouldn't be surprised if it causes
>> bootstrap trouble. You can use catch/throw, OTOH.
>>
>>
>> Stefan
>>
>=20
> Attached is an updated version using `catch` and `throw`. Thank you for
> pointing those out to me. The patch is also changed to signal
> `args-out-of-range` for the start and end indexes to be more like
> `seq-subseq`.
>=20
> How does it look?
Hello,
After testing it more, I see that what I've written does not work as I=20
expected in the case
(let ((v (vector (vector 0 1)
(vector 2 3)
(vector 4 5))))
(setf (seq-subseq (seq-subseq (elt v 0) 0) 0)
[10])
v)
in which I would expect it to replace the first element of the first=20
sub-vector with 10. I will take more time to continue working on this.
Thank you for your patience.
bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
Full text available.Received: (at 68863) by debbugs.gnu.org; 9 Feb 2024 03:55:22 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Feb 08 22:55:22 2024 Received: from localhost ([127.0.0.1]:57254 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1rYHyz-0006cF-Nj for submit <at> debbugs.gnu.org; Thu, 08 Feb 2024 22:55:22 -0500 Received: from mail-4322.protonmail.ch ([185.70.43.22]:22959) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <okamsn@HIDDEN>) id 1rYHyx-0006bs-Am for 68863 <at> debbugs.gnu.org; Thu, 08 Feb 2024 22:55:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1707450898; x=1707710098; bh=h9Wx6qL+k3NzIHf4k5XQhXTj/DOjx+B2GmFcm6owis8=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector; b=xJED8OaDIuYVxGmof3TVXcE/oL34B67REyELCiW9hvb2w0JnBtB3E+VZvLBUq0VMv KyfUhTTYDKj5wzX4u4JgiqnWk2LMMtyFGCNTk96YQ0l/w8vjcEcLcrm/axpS4xxm45 9LKVW7mHWWiLWdNAtax830jMWwhsVGrp83KBfKjdwnZD9UZxt1QJk88fKpwlcYyvyI pD472AeofkkJoxJz+P0L11oSrlFySp4goQTVYzTx/o2SSpNceeLN02OYWhToimzKmv pRwkKJpeMnPMsF0xE2rze2baPmBpIpVq/cr1UpbQyjOH0rCUADV5+55CkBCVMnRyuJ WdSeH3wV8AOzA== Date: Fri, 09 Feb 2024 03:54:32 +0000 To: Stefan Monnier <monnier@HIDDEN>, Eli Zaretskii <eliz@HIDDEN> From: Okamsn <okamsn@HIDDEN> Subject: Re: bug#68863: Add support for using setf with seq-subseq Message-ID: <2dfd9d7f-5c63-4e1d-845c-cd245a71fc34@HIDDEN> In-Reply-To: <jwvmssbqbmx.fsf-monnier+emacs@HIDDEN> References: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN> <86y1bvw5ff.fsf@HIDDEN> <jwvmssbqbmx.fsf-monnier+emacs@HIDDEN> Feedback-ID: 25935600:user:proton MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="b1_15khvgEM3WV8QgDkoBLfCIRbfMNiq4FeNINire2qQ" X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 68863 Cc: 68863 <at> debbugs.gnu.org, Nicolas Petton <nicolas@HIDDEN> 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 (-) This is a multi-part message in MIME format. --b1_15khvgEM3WV8QgDkoBLfCIRbfMNiq4FeNINire2qQ Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Stefan Monnier wrote: >>> To avoid modifying more values than specified, that modifying function >>> uses a `when` condition. I'm not sure of a good way to stop `seq-do` >>> early when we know that it can stop calling the modifying function. >>> Normally, I would use `cl-block` and `cl-return`. Is it OK to use those >>> features in `seq.el`? If not, is it worth adding something like a >>> `seq-map-while` or a `seq-do-while`? >=20 > `seq.el` is used by some parts of the implementation of `cl-lib`, so > the use of `cl-lib` risks introducing a circular dependency. Maybe using > `cl-block/return` would be OK, but I wouldn't be surprised if it causes > bootstrap trouble. You can use catch/throw, OTOH. >=20 >=20 > Stefan >=20 Attached is an updated version using `catch` and `throw`. Thank you for=20 pointing those out to me. The patch is also changed to signal=20 `args-out-of-range` for the start and end indexes to be more like=20 `seq-subseq`. 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bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
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From: Stefan Monnier <monnier@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#68863: Add support for using setf with seq-subseq
In-Reply-To: <86y1bvw5ff.fsf@HIDDEN> (Eli Zaretskii's message of "Thu, 08 Feb
2024 13:39:48 +0200")
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References: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN>
<86y1bvw5ff.fsf@HIDDEN>
Date: Thu, 08 Feb 2024 09:25:51 -0500
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Cc: Okamsn <okamsn@HIDDEN>, 68863 <at> debbugs.gnu.org,
Nicolas Petton <nicolas@HIDDEN>
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>> This patch adds support for using `seq-subseq` with `setf`, as in
>>
>> ;; => [0 1 2 10 11]
>> (let ((seq (vector 0 1 2 3 4)))
>> (setf (seq-subseq seq -2) (list 10 11 12 13 14))
>> seq)
>>
>> The patch adds a generic version which uses the existing `setf` support
>> of `seq-elt` and a specialized version for modifying lists. Both
>> versions use `seq-do` to map a function over the values that should
>> replace the values in the modified sequence.
> Nicolas, Stefan: any comments?
Fine by me.
>> To avoid modifying more values than specified, that modifying function
>> uses a `when` condition. I'm not sure of a good way to stop `seq-do`
>> early when we know that it can stop calling the modifying function.
>> Normally, I would use `cl-block` and `cl-return`. Is it OK to use those
>> features in `seq.el`? If not, is it worth adding something like a
>> `seq-map-while` or a `seq-do-while`?
`seq.el` is used by some parts of the implementation of `cl-lib`, so
the use of `cl-lib` risks introducing a circular dependency. Maybe using
`cl-block/return` would be OK, but I wouldn't be surprised if it causes
bootstrap trouble. You can use catch/throw, OTOH.
Stefan
bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
Full text available.Received: (at 68863) by debbugs.gnu.org; 8 Feb 2024 11:40:16 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Feb 08 06:40:16 2024 Received: from localhost ([127.0.0.1]:59265 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1rY2lM-0001Zy-Gf for submit <at> debbugs.gnu.org; Thu, 08 Feb 2024 06:40:16 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:48264) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1rY2lJ-0001Zg-Ts for 68863 <at> debbugs.gnu.org; Thu, 08 Feb 2024 06:40:15 -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 1rY2ky-0006ry-NS; Thu, 08 Feb 2024 06:39:52 -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=m//bqq0/jk7+J29E6LyoPnxkI+LNakViQf5sGZf6cMA=; b=gXVlsyJrO16g SxtV6xNFywmrMk0SEt6cNxN45wMJ5t3ZdInT2wuYL9izfEkDx2ETOgOdNgJpoNcX9r0HK5VRPCh6a AgDQ74z4Hna+rVOCjIf3sNJDMRP1wptFRGRVDh+8k5LnSqqsvcMBgpAfys5XFYNIJHN5Oxs1OurwO Wv299ocwsxOHqci+C+YS0PwtZSn5ajeLXcBuvrDGD4jxeanoKuOytWmB+t69+cVlEhIgyW4F40U2G vJ+wuoI1sw+VIR2LJpkOBu7C2uBalRk+M+ww3DjMB4AVasRMcUytOlVRvDPp3xzpKLNN5xusmjNpW NSv75bjRSp9Rf7+QOtCNSQ==; Date: Thu, 08 Feb 2024 13:39:48 +0200 Message-Id: <86y1bvw5ff.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Okamsn <okamsn@HIDDEN>, Nicolas Petton <nicolas@HIDDEN>, Stefan Monnier <monnier@HIDDEN> In-Reply-To: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN> (bug-gnu-emacs@HIDDEN) Subject: Re: bug#68863: Add support for using setf with seq-subseq References: <050ba625-2372-425f-85c6-988e2ef4cf14@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 68863 Cc: 68863 <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: Thu, 01 Feb 2024 03:31:10 +0000 > From: Okamsn via "Bug reports for GNU Emacs, > the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> > > This patch adds support for using `seq-subseq` with `setf`, as in > > ;; => [0 1 2 10 11] > (let ((seq (vector 0 1 2 3 4))) > (setf (seq-subseq seq -2) (list 10 11 12 13 14)) > seq) > > The patch adds a generic version which uses the existing `setf` support > of `seq-elt` and a specialized version for modifying lists. Both > versions use `seq-do` to map a function over the values that should > replace the values in the modified sequence. > > To avoid modifying more values than specified, that modifying function > uses a `when` condition. I'm not sure of a good way to stop `seq-do` > early when we know that it can stop calling the modifying function. > Normally, I would use `cl-block` and `cl-return`. Is it OK to use those > features in `seq.el`? If not, is it worth adding something like a > `seq-map-while` or a `seq-do-while`? Thanks. Nicolas, Stefan: any comments? seq.el is preloaded, so we should consider whether this addition is important enough to have it in seq or elsewhere, if we think it's useful.
bug-gnu-emacs@HIDDEN:bug#68863; Package emacs.
Full text available.Received: (at 68863) by debbugs.gnu.org; 4 Feb 2024 18:33:56 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Feb 04 13:33:56 2024 Received: from localhost ([127.0.0.1]:50019 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1rWhJT-0002Ys-G6 for submit <at> debbugs.gnu.org; Sun, 04 Feb 2024 13:33:56 -0500 Received: from mail-4322.protonmail.ch ([185.70.43.22]:59299) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <okamsn@HIDDEN>) id 1rWhJQ-0002YZ-M4 for 68863 <at> debbugs.gnu.org; Sun, 04 Feb 2024 13:33:54 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1707071613; x=1707330813; bh=w272QD+6BnjmVKh1HXAOyznVwXTVdH3dKrdOjek+RnE=; h=Date:To:From:Cc:Subject:Message-ID:Feedback-ID:From:To:Cc:Date: Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector; b=paFmwTigbFthCZcVyLQeK5Zm9BAYZwLddXcsb/5WkfPu+wdo2ueLyjbt0esUs9zY3 +15ZfawjExM2oTBvlzkOnbZBNAdw87LtMdDisgOpn3NtikXjN19msqHcVyuat6DPXk nmcDhP3cF7SspoCLuRGK78yZBUNCm6xVJWLr+BhEfXMNRaijezHwa9ty8nS/G/aIPx DK6DDloRDW3icf7sUxrSb19vNvAjKwFaWb7H0RsD9HNhpPFy7LF1f7sFLXPMlx54Sp 9ZT3g76r62O9OzlbrufFCemLXG6xPGpCZlTugA1jkIqvsdRhfqAcXY5OSM0x1YEfw1 r3liIj31cfuBA== Date: Sun, 04 Feb 2024 18:33:14 +0000 To: 68863 <at> debbugs.gnu.org From: Okamsn <okamsn@HIDDEN> Subject: [PATCH] Add support for using setf with seq-subseq Message-ID: <93137eee-2012-499c-bb14-d6ab0010fe3a@HIDDEN> Feedback-ID: 25935600:user:proton MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="b1_dumZCQ2lQnrcDps8eIbb09sUWn2s89QI3fXUHnzTXg" X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 68863 Cc: Nicolas Petton <nicolas@HIDDEN> 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 (-) This is a multi-part message in MIME format. --b1_dumZCQ2lQnrcDps8eIbb09sUWn2s89QI3fXUHnzTXg Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hello, I've added the maintainers e-mail address to the discussion and have=20 added "[PATCH]" to the subject to make it more clear that there is a=20 patch file attached. I tested a version that uses a `seq-map-while`, but it only made a=20 difference when the sequence of values to copy to the existing sequence=20 was longer than 100 elements, which I would guess is a less common use case= . 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Date: Thu, 01 Feb 2024 03:31:10 +0000
To: bug-gnu-emacs@HIDDEN
From: Okamsn <okamsn@HIDDEN>
Subject: Add support for using setf with seq-subseq
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--b1_AJSw1Glr62ORHrEdyl2Yja46lAOK2IQJL3n4Y2XbcfA
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Hello,
This patch adds support for using `seq-subseq` with `setf`, as in
;; =3D> [0 1 2 10 11]
(let ((seq (vector 0 1 2 3 4)))
(setf (seq-subseq seq -2) (list 10 11 12 13 14))
seq)
The patch adds a generic version which uses the existing `setf` support=20
of `seq-elt` and a specialized version for modifying lists. Both=20
versions use `seq-do` to map a function over the values that should=20
replace the values in the modified sequence.
To avoid modifying more values than specified, that modifying function=20
uses a `when` condition. I'm not sure of a good way to stop `seq-do`=20
early when we know that it can stop calling the modifying function.=20
Normally, I would use `cl-block` and `cl-return`. Is it OK to use those=20
features in `seq.el`? If not, is it worth adding something like a=20
`seq-map-while` or a `seq-do-while`?
Thank you.
--b1_AJSw1Glr62ORHrEdyl2Yja46lAOK2IQJL3n4Y2XbcfA
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--b1_AJSw1Glr62ORHrEdyl2Yja46lAOK2IQJL3n4Y2XbcfA--
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