Received: (at 78863) by debbugs.gnu.org; 23 Jun 2025 11:20:19 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Jun 23 07:20:18 2025 Received: from localhost ([127.0.0.1]:54609 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1uTfDj-0006u5-7n for submit <at> debbugs.gnu.org; Mon, 23 Jun 2025 07:20:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45390) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1uTfDd-0006rv-Sn for 78863 <at> debbugs.gnu.org; Mon, 23 Jun 2025 07:20:13 -0400 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 1uTfDX-0000MQ-2H; Mon, 23 Jun 2025 07:20:04 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=KjSb+Vp3Pj1AFKzKVw6gBHD+XEUJ46lCMRLQY9Dl7Dg=; b=nFo+0Sl0e45olpCw9jil ZWEJ91wAyb8c5QRlGLHewpisZlLE1RuMzYva30JlFSJG80OGaPnww2sBrsCl+85jr9l5bLvJF4Yb9 uA1SncDMAxAn8hSaHraxsyA04Gm2sIGRSfEMRkMQEYgzALgAkafwqgrCzyLIzEZ3Qt+1MHwajapoU r6FkFd2IA/d3N7h9ILpD+8yKd0S39hGXhux2wlwNFEGerU1ek+V9LT2GqL/pDEaZaTqie3og4dNyJ MtQLZcy9kR+O2uhhDPocCmjmSeHgzXleAHw+qkGIHJlUZBnb3gB/t/bMd2VUE+Iptd1BSwgY6tcZP jSBUNC9VhIoDSQ==; Date: Mon, 23 Jun 2025 14:19:45 +0300 Message-Id: <86ms9yg0xa.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Alexander =?utf-8?Q?Pr=C3=A4hauser?= <ahprae@HIDDEN> In-Reply-To: <87frfrtxcu.fsf@HIDDEN> (message from Alexander =?utf-8?Q?Pr=C3=A4hauser?= on Sun, 22 Jun 2025 19:00:51 +0000) Subject: Re: bug#78863: 31.0.50; Feature request: add option for greedy looking-back to abbrev-before-point References: <87ecvb3lp4.fsf@HIDDEN> <864iw7hllk.fsf@HIDDEN> <87o6ufu3qq.fsf@HIDDEN> <86y0tjfxm4.fsf@HIDDEN> <87frfrtxcu.fsf@HIDDEN> MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 78863 Cc: 78863 <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 (---) [Please use Reply All to reply, to keep the bug tracker CC'd.] > Date: Sun, 22 Jun 2025 19:00:51 +0000 > From: Alexander Prähauser <ahprae@HIDDEN> > > "Eli Zaretskii" <eliz@HIDDEN> writes: > > >> Date: Sun, 22 Jun 2025 16:42:59 +0000 > >> From: Alexander Prähauser <ahprae@HIDDEN> > >> Cc: 78863 <at> debbugs.gnu.org > >> > >> "Eli Zaretskii" <eliz@HIDDEN> writes: > >> > >> >> Date: Sun, 22 Jun 2025 14:17:15 +0000 > >> >> From: Alexander Prähauser via "Bug reports for GNU Emacs, > >> >> the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> > >> >> > >> >> > >> >> This is a feature request: I have a keyboard layout with many Unicode > >> >> symbols like ∀ and such, which I would like to define abbrevs with, so > >> >> for instance I would like to define "o∀" to expand to "overall". This > >> >> doesn't work when the abbrev is isolated using backward-word > >> > > >> > This is because by default, word motion stops at the character-script > >> > boundaries. But you could override that by suitable changes to > >> > word-combining-categories, which see. Did you try that? > >> > >> Yeah, but I wasn't very successful. I changed the syntax-class of ∀ to > >> "w", which lets `backward-word' consider ∀ a word-constituent, but then > >> `backward-word' stops between the o and the ∀ in o∀. I tried to set > >> other syntactic properties of ∀ equal to those of o using > >> `put-char-code-property' but that didn't work either. Looking into it > >> deeper I suspected that it was because the two belong to different > >> categories as you say, so I used `char-category-set' and > >> `modify-category-entry' to add and remove > >> the categories of ∀ until it had the same categories as o, but > >> `forward-word' still stopped between the two characters. I have no idea > >> why. > > > > I told you: it's a feature. See the doc string of forward-word. > > > >> At that point I gave up and decided to use a regexp. I'd actually > >> like to know why it didn't work with all categories set equally but I'm > >> a bit out of my depth here. I can read lisp and use edebug to track what > >> happens in lisp-code, but `forward-word' and the function it uses to > >> determine word-boundaries are C-primitives and I know next to no C. I > >> tried following the source code but, again, I have no clue why it didn't > >> work after I equalized the categories. Maybe because I only did it for > >> the category table of the local buffer (which was *scratch*)? > > > > As I told, the way to affect this is to modify the list in > > word-combining-categories so that a position between latin and symbol > > script is not considered a border that requires forward-word to stop. > > Both latin and symbol have known categories (see "M-x describe-categories") > > so you could use them to customize word-combining-categories. Its doc > > string is supposed to explain how; feel free to ask question if it > > isn't clear enough. > > Oh, I see what you mean now! Thanks, I think this is working! > > I read the documentation of `word-combining-categories' but what > confused me was that each character has many categories, so I didn't > know which one to add (which is why I tried to set them equal until I > found the right one). But now I see what's meant here: > > "Emacs finds no word boundary between characters of different scripts > if they have categories matching some element of this list. > > More precisely, if an element of this list is a cons of category CAT1 > and CAT2, and a multibyte character C1 which has CAT1 is followed by > C2 which has CAT2, there's no word boundary between C1 and C2." > > So if any of the categories of C1 is CAT1 and any of the categories in > C2 is CAT2 there is no boundary in a string C1C2 but there is one in a > string C2C1. I think I get it now. Thanks again! Yes, exactly. Does this mean we can close this bug? Or would you still like to discuss the extension of the regexp specifications of abbrevs?
bug-gnu-emacs@HIDDEN:bug#78863; Package emacs.
Full text available.Received: (at 78863) by debbugs.gnu.org; 22 Jun 2025 18:19:16 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Jun 22 14:19:16 2025 Received: from localhost ([127.0.0.1]:49737 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1uTPHf-00005Q-Et for submit <at> debbugs.gnu.org; Sun, 22 Jun 2025 14:19:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60224) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1uTPHd-0008Vv-C2 for 78863 <at> debbugs.gnu.org; Sun, 22 Jun 2025 14:19:14 -0400 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 1uTPHW-00061P-Lu; Sun, 22 Jun 2025 14:19:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=/XpF4VW46sWRt8hm19SIIVvoAxwxtZHVDikRiZi4vAw=; b=ICJ5oqbJbZy49+7NtGfG CJegSm0geo7EUBtKGkFoVPlEegFLeVLptynpZ0+vuu+/eEjVDOT1P8XfIZU83WqbJtLQy0plWh4rp 2mrNDQGl8vuB9Af5VuzsWxSKwJx71a0fPjrpGmp2GCrFZYNQLqoUWrafN3BmvAof3jgh1gkOJ2J2o O54PMxXJeYwp08myBWp8/mxyVKFiaWiPnHp4viFUKVNKIa2AL8gZ3TD6LmAWWiBcAKNphwQhrZfK3 fLyo/qvnEgf539j0Z0S36lWJ26m/DojAXyWY9gJ1pM+pJB6RzKqT15mMaph4L5gsW80VdhGc5M6+T xUtU+6f0MntX2w==; Date: Sun, 22 Jun 2025 21:18:59 +0300 Message-Id: <86y0tjfxm4.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Alexander =?utf-8?Q?Pr=C3=A4hauser?= <ahprae@HIDDEN> In-Reply-To: <87o6ufu3qq.fsf@HIDDEN> (message from Alexander =?utf-8?Q?Pr=C3=A4hauser?= on Sun, 22 Jun 2025 16:42:59 +0000) Subject: Re: bug#78863: 31.0.50; Feature request: add option for greedy looking-back to abbrev-before-point References: <87ecvb3lp4.fsf@HIDDEN> <864iw7hllk.fsf@HIDDEN> <87o6ufu3qq.fsf@HIDDEN> MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 78863 Cc: 78863 <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: Sun, 22 Jun 2025 16:42:59 +0000 > From: Alexander Prähauser <ahprae@HIDDEN> > Cc: 78863 <at> debbugs.gnu.org > > "Eli Zaretskii" <eliz@HIDDEN> writes: > > >> Date: Sun, 22 Jun 2025 14:17:15 +0000 > >> From: Alexander Prähauser via "Bug reports for GNU Emacs, > >> the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> > >> > >> > >> This is a feature request: I have a keyboard layout with many Unicode > >> symbols like ∀ and such, which I would like to define abbrevs with, so > >> for instance I would like to define "o∀" to expand to "overall". This > >> doesn't work when the abbrev is isolated using backward-word > > > > This is because by default, word motion stops at the character-script > > boundaries. But you could override that by suitable changes to > > word-combining-categories, which see. Did you try that? > > Yeah, but I wasn't very successful. I changed the syntax-class of ∀ to > "w", which lets `backward-word' consider ∀ a word-constituent, but then > `backward-word' stops between the o and the ∀ in o∀. I tried to set > other syntactic properties of ∀ equal to those of o using > `put-char-code-property' but that didn't work either. Looking into it > deeper I suspected that it was because the two belong to different > categories as you say, so I used `char-category-set' and > `modify-category-entry' to add and remove > the categories of ∀ until it had the same categories as o, but > `forward-word' still stopped between the two characters. I have no idea > why. I told you: it's a feature. See the doc string of forward-word. > At that point I gave up and decided to use a regexp. I'd actually > like to know why it didn't work with all categories set equally but I'm > a bit out of my depth here. I can read lisp and use edebug to track what > happens in lisp-code, but `forward-word' and the function it uses to > determine word-boundaries are C-primitives and I know next to no C. I > tried following the source code but, again, I have no clue why it didn't > work after I equalized the categories. Maybe because I only did it for > the category table of the local buffer (which was *scratch*)? As I told, the way to affect this is to modify the list in word-combining-categories so that a position between latin and symbol script is not considered a border that requires forward-word to stop. Both latin and symbol have known categories (see "M-x describe-categories") so you could use them to customize word-combining-categories. Its doc string is supposed to explain how; feel free to ask question if it isn't clear enough.
bug-gnu-emacs@HIDDEN:bug#78863; Package emacs.
Full text available.Received: (at 78863) by debbugs.gnu.org; 22 Jun 2025 16:43:13 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Jun 22 12:43:13 2025 Received: from localhost ([127.0.0.1]:49627 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1uTNmi-0006Xv-Sa for submit <at> debbugs.gnu.org; Sun, 22 Jun 2025 12:43:13 -0400 Received: from mail-10631.protonmail.ch ([79.135.106.31]:59395) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <ahprae@HIDDEN>) id 1uTNmg-0006Wj-4Y for 78863 <at> debbugs.gnu.org; Sun, 22 Jun 2025 12:43:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1750610583; x=1750869783; bh=47XmlQ7XhmnI0fqpeUXwZzm2Fj5lD8jZs6Ym1tJ627s=; 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=JIhzCPeRIymqXyQxRag5gv9cFuk9xMK4ps1qoduOGbtyyDpnajb+x0UEC11L+Naym MaOJYQE2oo5AJnDTHksSUYlnYyjY56cL1hW8bN0N9iXFFP+WMaSiq1vH8D5Jcf3/iW hruevyKTHMqbwMItQctuyPhZndNE4EWy0FgDCAoXff7GGIANqQT1nUMdUu+mVtETCi 3eXWL/wk35AKaqiiSS+1clJ4VIwz8Vw8qxA7zFbGQDBg1AWWp90rEJrVWRo+Xt+Iau qvfXfZTQC/rDaZfxrJgwn00CrrmnpJkgLRJhyI0JByha2bZj69Dg2uLVDnYDUZKMYo PTcn300aWR/Fg== Date: Sun, 22 Jun 2025 16:42:59 +0000 To: Eli Zaretskii <eliz@HIDDEN> From: =?utf-8?Q?Alexander_Pr=C3=A4hauser?= <ahprae@HIDDEN> Subject: Re: bug#78863: 31.0.50; Feature request: add option for greedy looking-back to abbrev-before-point Message-ID: <87o6ufu3qq.fsf@HIDDEN> In-Reply-To: <864iw7hllk.fsf@HIDDEN> References: <87ecvb3lp4.fsf@HIDDEN> <864iw7hllk.fsf@HIDDEN> Feedback-ID: 39886207:user:proton X-Pm-Message-ID: 0d46e185d1c17d83c7e8046775fb92627a201973 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -1.0 (-) X-Debbugs-Envelope-To: 78863 Cc: 78863 <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: -2.0 (--) "Eli Zaretskii" <eliz@HIDDEN> writes: >> Date: Sun, 22 Jun 2025 14:17:15 +0000 >> From: Alexander Pr=C3=A4hauser via "Bug reports for GNU Emacs, >> the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> >> >> >> This is a feature request: I have a keyboard layout with many Unicode >> symbols like =E2=88=80 and such, which I would like to define abbrevs wi= th, so >> for instance I would like to define "o=E2=88=80" to expand to "overall".= This >> doesn't work when the abbrev is isolated using backward-word > > This is because by default, word motion stops at the character-script > boundaries. But you could override that by suitable changes to > word-combining-categories, which see. Did you try that? Yeah, but I wasn't very successful. I changed the syntax-class of =E2=88= =80 to "w", which lets `backward-word' consider =E2=88=80 a word-constituent, but = then `backward-word' stops between the o and the =E2=88=80 in o=E2=88=80. I trie= d to set other syntactic properties of =E2=88=80 equal to those of o using `put-char-code-property' but that didn't work either. Looking into it deeper I suspected that it was because the two belong to different categories as you say, so I used `char-category-set' and `modify-category-entry' to add and remove the categories of =E2=88=80 until it had the same categories as o, but `forward-word' still stopped between the two characters. I have no idea why. At that point I gave up and decided to use a regexp. I'd actually like to know why it didn't work with all categories set equally but I'm a bit out of my depth here. I can read lisp and use edebug to track what happens in lisp-code, but `forward-word' and the function it uses to determine word-boundaries are C-primitives and I know next to no C. I tried following the source code but, again, I have no clue why it didn't work after I equalized the categories. Maybe because I only did it for the category table of the local buffer (which was *scratch*)?
bug-gnu-emacs@HIDDEN:bug#78863; Package emacs.
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To: 78863 <at> debbugs.gnu.org
From: =?utf-8?Q?Alexander_Pr=C3=A4hauser?= <ahprae@HIDDEN>
Subject: Re: Feature request: add option for greedy looking-back to
abbrev-before-point
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This is really stupid, but I just realized that I can use something like
(rx (or space "-" "_" "\n" line-start string-start)
(group (* (not (or space "-" "_" "\n")))))
for matching, which works. Sorry for overlooking that. So that kind of
lessens the importance of adding an option along the lines I described,
though it might make it less confusing for people wondering why their
abbrevs don't seem to match.
bug-gnu-emacs@HIDDEN:bug#78863; Package emacs.
Full text available.Received: (at 78863) by debbugs.gnu.org; 22 Jun 2025 14:56:07 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Jun 22 10:56:07 2025 Received: from localhost ([127.0.0.1]:49214 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1uTM74-0005Eu-Su for submit <at> debbugs.gnu.org; Sun, 22 Jun 2025 10:56:07 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42302) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1uTM72-0005E0-EM for 78863 <at> debbugs.gnu.org; Sun, 22 Jun 2025 10:56:04 -0400 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 1uTM6u-0007ss-TO; Sun, 22 Jun 2025 10:55:57 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=+biypmuMejsLwke00zWdO/RbyKln/tYbd/neLM8DT4A=; b=VxlygghG8LPIuK/spNxj NyL81FUJJWW8SDQhvy+TK+3CThlRj5XYKMNxY1RgeOULv/TYiLc1ufiDDTBr/KvQELK6n500TT4P7 mYq+BXivgFmR6W96+2ZXZ2iuZ3il0I4q3yfV1aWDxuya+m7rORorEexw/H+Ua87RVFtHHXFgcltjC g3DONiljjU0yADC6/UX8WILeNxDLx0IIEFrUnHuRPWxChjbMbKt7LOqR3COPMalcJonuPcMYfvXbg eXlyfcFdqCgl6fTUE6A5ViLNZXkcLpptTzZ7mTH9aSIDnAHghq3WBS4C17+JGki4dCNMaM+qg/PCq yMlCvArNMbWVjw==; Date: Sun, 22 Jun 2025 17:55:35 +0300 Message-Id: <864iw7hllk.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Alexander =?utf-8?Q?Pr=C3=A4hauser?= <ahprae@HIDDEN> In-Reply-To: <87ecvb3lp4.fsf@HIDDEN> (bug-gnu-emacs@HIDDEN) Subject: Re: bug#78863: 31.0.50; Feature request: add option for greedy looking-back to abbrev-before-point References: <87ecvb3lp4.fsf@HIDDEN> MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 78863 Cc: 78863 <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: Sun, 22 Jun 2025 14:17:15 +0000 > From: Alexander Prähauser via "Bug reports for GNU Emacs, > the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> > > > This is a feature request: I have a keyboard layout with many Unicode > symbols like ∀ and such, which I would like to define abbrevs with, so > for instance I would like to define "o∀" to expand to "overall". This > doesn't work when the abbrev is isolated using backward-word This is because by default, word motion stops at the character-script boundaries. But you could override that by suitable changes to word-combining-categories, which see. Did you try that?
bug-gnu-emacs@HIDDEN:bug#78863; Package emacs.
Full text available.Received: (at submit) by debbugs.gnu.org; 22 Jun 2025 14:17:38 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Jun 22 10:17:38 2025 Received: from localhost ([127.0.0.1]:49003 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1uTLVp-00075O-Ro for submit <at> debbugs.gnu.org; Sun, 22 Jun 2025 10:17:38 -0400 Received: from lists.gnu.org ([2001:470:142::17]:34478) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <ahprae@HIDDEN>) id 1uTLVn-00074z-Qm for submit <at> debbugs.gnu.org; Sun, 22 Jun 2025 10:17:36 -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 <ahprae@HIDDEN>) id 1uTLVg-0007J4-OC for bug-gnu-emacs@HIDDEN; Sun, 22 Jun 2025 10:17:29 -0400 Received: from mail-0201.mail-europe.com ([51.77.79.158]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <ahprae@HIDDEN>) id 1uTLVf-0001LC-2O for bug-gnu-emacs@HIDDEN; Sun, 22 Jun 2025 10:17:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1750601840; x=1750861040; bh=OSBF/q+6yuxbAstboC7sohkMlI58YbNjVhIFOg+3RVw=; h=Date:To:From:Subject:Message-ID:Feedback-ID:From:To:Cc:Date: Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector; b=cVWCSUhCpTaEmYRfqb0nw25gxW1nOcciF+OFDsnxDDqf7RQnTUvHtmfnlwr1/PzmH 88bL1uoj3vf36JJSRpR1H50fFMBOcvdPAfkZYW6f2JkKwqtex2Kr9VtSqktoqMhtBg ZISlbraw2B5V/s57Lx7K1RgQMzdKKNbUXUjrI/w05kXd6TnhaaQZalLYxAf075Wxu6 6zSb4dsb88bsMma5tVZp6ig9trO0Dy/6vHKNq8oJvriOpf52L132GY/UP8YA/Wfb7i y7WcoZKb/hrTJNCjF6Z6LX1lwq9KZRXLH+rGfCK12045TbNqz4ymnBTuh6rn4nhzUw oikPyvqi/SLwA== Date: Sun, 22 Jun 2025 14:17:15 +0000 To: bug-gnu-emacs@HIDDEN From: =?utf-8?Q?Alexander_Pr=C3=A4hauser?= <ahprae@HIDDEN> Subject: 31.0.50; Feature request: add option for greedy looking-back to abbrev-before-point Message-ID: <87ecvb3lp4.fsf@HIDDEN> Feedback-ID: 39886207:user:proton X-Pm-Message-ID: b5218f247cdd377ad2395bce9c0e13147a373094 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=51.77.79.158; envelope-from=ahprae@HIDDEN; helo=mail-0201.mail-europe.com 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_DNSWL_NONE=-0.0001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: 1.0 (+) X-Debbugs-Envelope-To: submit 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: -0.0 (/) This is a feature request: I have a keyboard layout with many Unicode symbols like =E2=88=80 and such, which I would like to define abbrevs with,= so for instance I would like to define "o=E2=88=80" to expand to "overall". Th= is doesn't work when the abbrev is isolated using backward-word, but can be implemented using the :regexp property of `define-abbrev-table'. I would like to define many such mixed abbrevs this way, using a regexp like (rx (group (* (not (or space "-" "_"))))) to isolate abbrevs. The trouble is that `abbrev--before-point' uses (looking-back re (line-beginning-position)) to isolate an abbrev when a regexp is given, which matches non-greedily. This could be fixed fairly easily from my understanding by providing an optional argument to `expand-abbrev' that sets the GREEDY argument of `looking-back', which would cause `looking-back' to match greedily. I'm guessing that this would make `looking-back' even slower but it would be optional and a modern machine should be able to handle the matching, I'd guess. And it would make the :regexp property of abbrev-tables a lot more useful, I'd say.
Alexander Prähauser <ahprae@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#78863; Package emacs.
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