From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Juanma Barranquero Newsgroups: gmane.emacs.devel Subject: Re: Lexical binding Date: Sat, 2 Apr 2011 20:50:49 +0200 Message-ID: References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Trace: dough.gmane.org 1301770300 8322 80.91.229.12 (2 Apr 2011 18:51:40 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sat, 2 Apr 2011 18:51:40 +0000 (UTC) Cc: emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Apr 02 20:51:37 2011 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Q65v6-0005MV-Az for ged-emacs-devel@m.gmane.org; Sat, 02 Apr 2011 20:51:36 +0200 Original-Received: from localhost ([127.0.0.1]:49907 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Q65v5-0004K3-VD for ged-emacs-devel@m.gmane.org; Sat, 02 Apr 2011 14:51:35 -0400 Original-Received: from [140.186.70.92] (port=39010 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Q65v1-0004Jl-7z for emacs-devel@gnu.org; Sat, 02 Apr 2011 14:51:32 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Q65uz-0006C8-VU for emacs-devel@gnu.org; Sat, 02 Apr 2011 14:51:31 -0400 Original-Received: from mail-gx0-f169.google.com ([209.85.161.169]:44050) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q65uz-0006Bz-Qz for emacs-devel@gnu.org; Sat, 02 Apr 2011 14:51:29 -0400 Original-Received: by gxk23 with SMTP id 23so148128gxk.0 for ; Sat, 02 Apr 2011 11:51:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc:content-type:content-transfer-encoding; bh=d2aP3M43e+a0tyBFixnwrxEn4nT0jvFzVPUqz6UC7aM=; b=OzjKYxxjmyULfh952InyUe5CPwHiBwFqF3DfWFfS2n3agsbHqkfQG6MK6pi1ao1xu1 MB62VmpsKzW3MgONhlw8Qx7qQf6BWdvjir5gNdZeSce5Tdw+3mnDnH/bkKgMtqn1K7bA AVB0MsBeQRUj8CtlKH+CknWi9aPPMchwHpu+o= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; b=V0JjY4+pLTfF3cIOhTN6qkBsTxQJgz26DhM/aQLexGflZDfUCtdBK1pZS9z6LVf5mJ OJ5h1W+BbqtHxgbvbty6hYs2A5/eTiJwwIkgav+v8RuUZlokv8MBZ11+/yqDk4BMhtzH aqVnle7IPk3Sszltr2uleMFUMww/64i1s4o+8= Original-Received: by 10.236.200.130 with SMTP id z2mr7576649yhn.34.1301770289078; Sat, 02 Apr 2011 11:51:29 -0700 (PDT) Original-Received: by 10.147.182.17 with HTTP; Sat, 2 Apr 2011 11:50:49 -0700 (PDT) In-Reply-To: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 209.85.161.169 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:138068 Archived-At: On Sat, Apr 2, 2011 at 20:38, Stefan Monnier wro= te: > Indeed, if a variable is only assigned to, it's both "unused lexical > var" and "not left unused". OK, perhaps I simplified too much. The original problem is in this function from help-fns.el: (defun help-do-arg-highlight (doc args) (with-syntax-table (make-syntax-table emacs-lisp-mode-syntax-table) (modify-syntax-entry ?\- "w") (dolist (arg args doc) (setq doc (replace-regexp-in-string ;; This is heuristic, but covers all common cases ;; except ARG1-ARG2 (concat "\\<" ; beginning of word "\\(?:[a-z-]*-\\)?" ; for xxx-ARG "\\(" (regexp-quote arg) "\\)" "\\(?:es\\|s\\|th\\)?" ; for ARGth, ARGs "\\(?:-[a-z0-9-]+\\)?" ; for ARG-xxx, ARG-n "\\(?:-[{([<`\"].*?\\)?"; for ARG-{x}, (x), , [x], `x' "\\>") ; end of word (help-highlight-arg arg) doc t t 1))))) =3D> help-fns.el:213:1:Warning: Unused lexical variable `arg' though arg is assigned and read. Or am I missing something? =C2=A0 =C2=A0 Juanma