From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ken Mankoff Newsgroups: gmane.emacs.bugs Subject: bug#19145: 24.4; prettify-symbols-mode inconsistent behavior Date: Fri, 21 Nov 2014 12:40:12 -0500 Message-ID: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1416592479 25502 80.91.229.3 (21 Nov 2014 17:54:39 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 21 Nov 2014 17:54:39 +0000 (UTC) To: 19145@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Nov 21 18:54:32 2014 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XrsPa-0003Cm-AP for geb-bug-gnu-emacs@m.gmane.org; Fri, 21 Nov 2014 18:54:26 +0100 Original-Received: from localhost ([::1]:41888 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XrsPa-0004ay-0E for geb-bug-gnu-emacs@m.gmane.org; Fri, 21 Nov 2014 12:54:26 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:38714) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XrsPN-0004S5-Rm for bug-gnu-emacs@gnu.org; Fri, 21 Nov 2014 12:54:22 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XrsPC-00067Y-Ok for bug-gnu-emacs@gnu.org; Fri, 21 Nov 2014 12:54:13 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:43932) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XrsPC-000674-Mi for bug-gnu-emacs@gnu.org; Fri, 21 Nov 2014 12:54:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XrsPC-0002VE-4Y for bug-gnu-emacs@gnu.org; Fri, 21 Nov 2014 12:54:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Ken Mankoff Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 21 Nov 2014 17:54:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 19145 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.14165923869552 (code B ref -1); Fri, 21 Nov 2014 17:54:01 +0000 Original-Received: (at submit) by debbugs.gnu.org; 21 Nov 2014 17:53:06 +0000 Original-Received: from localhost ([127.0.0.1]:41145 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XrsOG-0002Tx-Hr for submit@debbugs.gnu.org; Fri, 21 Nov 2014 12:53:05 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:33762) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XrsCP-0002BN-HN for submit@debbugs.gnu.org; Fri, 21 Nov 2014 12:40:50 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XrsCF-0001Kl-Pb for submit@debbugs.gnu.org; Fri, 21 Nov 2014 12:40:49 -0500 Original-Received: from lists.gnu.org ([2001:4830:134:3::11]:45494) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XrsCF-0001Kf-NT for submit@debbugs.gnu.org; Fri, 21 Nov 2014 12:40:39 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:35409) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XrsC6-0005nr-Ku for bug-gnu-emacs@gnu.org; Fri, 21 Nov 2014 12:40:39 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XrsBr-0001Ak-Rd for bug-gnu-emacs@gnu.org; Fri, 21 Nov 2014 12:40:30 -0500 Original-Received: from mail-qa0-x235.google.com ([2607:f8b0:400d:c00::235]:35807) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XrsBr-0001AY-O1 for bug-gnu-emacs@gnu.org; Fri, 21 Nov 2014 12:40:15 -0500 Original-Received: by mail-qa0-f53.google.com with SMTP id bm13so3705993qab.40 for ; Fri, 21 Nov 2014 09:40:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:subject:date:message-id:mime-version:content-type :content-transfer-encoding; bh=s087inD89jqe0nEvs726/0rGhsUBA3URHwCYYcdBVZE=; b=EY1zHFz21qWhXj1adayEtnS5zQ3e0SI/2bc/exE2yPFMPWcgwU0h3TVaClwxEwkagR wdJjze21aI08kZC+iZqu3/orJaGl02GY7+n330uEqLQLgz5aP0K/DKN+hJ5XsoFW8IpD m5tk7LCc9umi1Kg0UPba7x15r7D5Dztw0jJ2fHB8CktFkqBLr2AuVOb7LZXVPVSzeuYv XpxNccUvXt3nknu48KquZIOhMgBS0Zn0H4kOW5RYIu0B8EKpqQtKWCmTL8PQRJ4YzGXq IRiuAyIZ+SySkdzs2+dfF6/mqa6GbgvN+ecRKx/6MQRu5Vo/VXy/HYpqIv/tHLaj2027 CTeQ== X-Received: by 10.229.105.196 with SMTP id u4mr8097773qco.27.1416591615017; Fri, 21 Nov 2014 09:40:15 -0800 (PST) Original-Received: from gorgonzola.whoi.edu (c-71-58-77-153.hsd1.pa.comcast.net. [71.58.77.153]) by mx.google.com with ESMTPSA id p78sm5166886qgp.44.2014.11.21.09.40.13 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 21 Nov 2014 09:40:13 -0800 (PST) X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Mailman-Approved-At: Fri, 21 Nov 2014 12:53:02 -0500 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:96389 I'm having issues with the new prettify-symbols-mode. I'm not sure if this is a bug, or just a fact that the implementation is limited, in which case this is a feature request for a more complete implementation. Some symbols are sometimes not being treated correctly depending on what characters follow. For example, I have the following setup for coding Python: (prettify-symbols-mode t) (global-prettify-symbols-mode t) (add-hook 'python-mode-hook (lambda () (push '("**2" . ?²) prettify-symbols-alist) (push '("_x" . ?ᵪ) prettify-symbols-alist) (push '("delta" . ?δ) prettify-symbols-alist))) The issue may be somewhat subjective. For example, should foo_xx appear with a subscript x and then a normal x? Or should it appear as I assume you are reading it with no prettification? I would argue for the latter. What about foo_x+2? Regardless, I've created a matrix of prettifications, what I'd expect, and what happens. | Characters | Expected | Actual | Good? | |------------+------------------------+-------------------------------+-------| | foo_x | subscript x | subscript x | Y | | foo**2 | superscript 2 | superscript 2 | Y | | delta | delta symbol | delta symbol | Y | | foo_x+ | subscript x | No subscript | N | | foo_xi | no subscript | subscript | N | | foo_x[42] | subscript | subscript | Y | | foo_x**2 | subscript, superscript | no subscript, yes superscript | N | | foo**200 | no superscript | superscript 2 | N | | delta(42) | delta symbol(42) | symbol | Y | | delta+42 | symbol | symbol | Y | | delta**2 | symbol, superscript | symbol, superscritp | Y | | delta_x | symbol, subscript | no symbol | N | There are some inconsistencies, like why _x+ loses prettification, but delta+ retains it, or why foo_x_x_x works, but delta_x does not. Thanks, -k.