From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Dmitry Gutov Newsgroups: gmane.emacs.bugs Subject: bug#48681: Patch: Make prettify-symbols-mode work with ruby-mode Date: Thu, 27 May 2021 21:02:05 +0300 Message-ID: <33f32ea5-7fbb-7823-b475-2ae99354fecb@yandex.ru> References: <87y2c19mel.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="24733"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 Cc: Lars Ingebrigtsen , 48681@debbugs.gnu.org To: William Denton , Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu May 27 20:03:10 2021 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 1lmKLe-0006Jl-5B for geb-bug-gnu-emacs@m.gmane-mx.org; 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Thu, 27 May 2021 11:02:11 -0700 (PDT) In-Reply-To: Content-Language: en-US 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" Xref: news.gmane.io gmane.emacs.bugs:207389 Archived-At: On 27.05.2021 06:52, William Denton wrote: > An excellent question, and I think I overstepped things.  The > documentation¹ and answers on Stack Exchange² say "&&" and "||" are > logical operators (so the logical symbols work) but "and" and "or" have > lower precedence and are used differently. Right. And apparently, it's exactly the same situation in Perl. > It'd be best to just prettify "&&" and "||" with symbols, and anyone who > wants "and" and "or" could add those by hand.  Shall I send a revised > patch, or do you just want to delete those bits? Looking at the various prettify-symbols definitions, there is no great consistency. Even so, we can see that only python-mode uses the symbols ∧ and ∨. As someone who graduated with an engineering degree a decade ago, the "intersection" and "union" symbols look unusual in a programming context to me. And a lot of software developers don't have a math background at all. I'd recommend to just use the list from perl-mode: '(("->" . ?→) ("=>" . ?⇒) ("::" . ?∷)) and also add the ("lambda" . ?λ) mapping to it.