From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#69968: Case-folding of Mathematical Alphanumeric Symbols Date: Mon, 25 Mar 2024 14:37:49 +0200 Message-ID: <86o7b2jxlu.fsf@gnu.org> References: <86zfuoua66.fsf@mail.linkov.net> <86r0g0xhyc.fsf@gnu.org> <86le67abtb.fsf@mail.linkov.net> <86zfunjzh1.fsf@gnu.org> <867chqhjbd.fsf@mail.linkov.net> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39050"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 69968@debbugs.gnu.org To: Juri Linkov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Mar 25 17:01:42 2024 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1romla-0009uc-4S for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 25 Mar 2024 17:01:42 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1romk5-00030l-2d; Mon, 25 Mar 2024 12:00:09 -0400 Original-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 ) id 1romk1-0002yn-BN for bug-gnu-emacs@gnu.org; Mon, 25 Mar 2024 12:00:05 -0400 Original-Received: from debbugs.gnu.org ([2001:470:142:5::43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1romk1-0005bM-12 for bug-gnu-emacs@gnu.org; Mon, 25 Mar 2024 12:00:05 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1romk0-0003qB-3T for bug-gnu-emacs@gnu.org; Mon, 25 Mar 2024 12:00:04 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 25 Mar 2024 16:00:04 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 69968 X-GNU-PR-Package: emacs Original-Received: via spool by 69968-submit@debbugs.gnu.org id=B69968.171138236614366 (code B ref 69968); Mon, 25 Mar 2024 16:00:04 +0000 Original-Received: (at 69968) by debbugs.gnu.org; 25 Mar 2024 15:59:26 +0000 Original-Received: from localhost ([127.0.0.1]:35786 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1romjO-0003jX-4c for submit@debbugs.gnu.org; Mon, 25 Mar 2024 11:59:26 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41486) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1romjF-0003iB-Fz for 69968@debbugs.gnu.org; Mon, 25 Mar 2024 11:59:18 -0400 Original-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 ) id 1rojaL-0005nq-PW; Mon, 25 Mar 2024 08:37:53 -0400 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=pC1O4qyZNZcohH2b2ijcZNHRLXFCWuAcBe9jlmHZ1Bc=; b=rFjUZMmGl1zA SxsBLq1w2OybeAmo+czVRFczdMzKA79QiM3ZJcnlfr6LZJhlFQBWhaZFzT1EtXHwnhQU4oEjCc+gy fgofvnsPm1W1/mbJjxFW/bt8dxMCo/htbEkB3H3GV+NHQy61y0EclSQZ8mmT0JkbcSrTHRUfLPapL xLC1OW4LHgHG03wwSwBeoS6qBef35+Jz6/u0qjTVeuYNsQDXNsLShvD6avmLelkb4NaTMtQlJy2kz t/vnxMVOtwVyZcC9Huxpvy9ZwLu0dI7+uaKMoN7RjpwQAzTCeyzNPh2+NKGJ+w0wBPFv6jxdF6hfK 3hh14U3WxxVKNTu8V1Eu7w==; In-Reply-To: <867chqhjbd.fsf@mail.linkov.net> (message from Juri Linkov on Mon, 25 Mar 2024 09:37:10 +0200) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:282053 Archived-At: > From: Juri Linkov > Cc: 69968@debbugs.gnu.org > Date: Mon, 25 Mar 2024 09:37:10 +0200 > > >> Ok, then it's very strange that the Unicode standard doesn't define > >> letter-case conversions for other letters. But what can we do. > > > > We can define case-conversions for them if we decide to do so. > > Moreover, Lisp programs which for some reason need that can do that > > themselves, even if by default there are no case-conversions defined > > for them. The question is when and why is this needed? > > Probably case-conversions for them could be added later only > when there is more support for such symbols in Emacs: > for example, after creating an input method to input them, > or better a command that will convert the region of ASCII chars, > etc. I agree that case-conversions for these characters would make more sense as part of a larger package which would allow using these characters as letters. In any case, making a lower-case character L and upper-case character U a case-pair is simple: (let ((tbl (standard-case-table))) (set-case-syntax-pair U L tbl)) The above makes the change global, but it can also be made buffer-locally; see "Case Tables" in the ELisp manual for more details. I guess we can now close this bug? Or is there anything else to do here?