From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu Newsgroups: gmane.emacs.devel Subject: Re: Disambiguate modeline character for UTF-8? 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Hermes SMTP Server) with ESMTPA ID cd04843e5a666957a515d6c54e55e22f; Fri, 07 Jul 2023 12:01:28 +0000 (UTC) In-Reply-To: (Ulrich Mueller's message of "Fri, 07 Jul 2023 11:44:51 +0200") X-Mailer: WebService/1.1.21638 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Received-SPF: pass client-ip=66.163.185.31; envelope-from=luangruo@yahoo.com; helo=sonic313-56.consmr.mail.ne1.yahoo.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_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:307558 Archived-At: Ulrich Mueller writes: > Do you agree that the character repertoire that can be encoded by UTF-7 > is not identical to the one that can be encoded by UTF-8 or UTF-16? Only one of the repertories. The Unicode BMP can be encoded by all of those coding systems. > Yes, and when users encounter that rare case, they should get an > indication that the file they are visiting is in an unusual encoding. Why? Again, the purpose of the indicator is to indicate the characters that can be represented in the buffer's coding system. If the user wants to know exactly which coding system is in use, he can view the indicator's tooltip.