From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Hongyi Zhao Newsgroups: gmane.emacs.help Subject: Closures in Emacs and their usage scenarios. Date: Mon, 27 Sep 2021 17:40:27 +0800 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9990"; mail-complaints-to="usenet@ciao.gmane.io" To: help-gnu-emacs Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Mon Sep 27 11:43:15 2021 Return-path: Envelope-to: geh-help-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 1mUnAI-0002OM-3i for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 27 Sep 2021 11:43:14 +0200 Original-Received: from localhost ([::1]:36646 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mUnAF-0002Aq-Qs for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 27 Sep 2021 05:43:11 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:55500) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mUn7p-0000EM-1b for help-gnu-emacs@gnu.org; Mon, 27 Sep 2021 05:40:41 -0400 Original-Received: from mail-vs1-xe2b.google.com ([2607:f8b0:4864:20::e2b]:42563) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mUn7n-0002On-GV for help-gnu-emacs@gnu.org; Mon, 27 Sep 2021 05:40:40 -0400 Original-Received: by mail-vs1-xe2b.google.com with SMTP id z62so17388236vsz.9 for ; Mon, 27 Sep 2021 02:40:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:from:date:message-id:subject:to; bh=LPXkmdLUswzCC+w4XNdKd/bVe/3Z84BQBUulpufHcsU=; b=NM7kEH4H9vB5GFj+Mij/jGflmEZHBwD+yeTFBAfh8hQ/RDUmyy8nb6Y0m4drRVue+V M+BRhRU1pyshANIISBTv+aOgdlKpPu/9YgN5WFWT8iQeeRz2a/ZGXmTsIZroWngmg+H1 fd6nFfV2OI17Q8Q6d9YwWphLNNnrHVR+k/Gp8yKudJcRNiilnIv+W8HOrt6EpEBzDPVR xuuE7bYm+qIhblIi/qbkDI0lLHJWrXaVkLQJ1A/IjikJnKmVJkW4Jx/Z8R08fREWgeSw 950MkF/gD4RGpjzBRciygUP2Z+yJJfzXQSyHQI3gl29dvkTPUCSyK7w1lG7hHdCh8ohb 29BA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=LPXkmdLUswzCC+w4XNdKd/bVe/3Z84BQBUulpufHcsU=; b=J9RQI3DwEhwCDljgkZ08jjhDrjs2ZpaD3cJ7LOfcun+j/no2+8ZcGFvk+fbKznU149 zA2NbL61FQftuXE1/So2NSiBnYH5e71azdtoby5Oz7eGlw8zc0e3+jIxy0aSL7YtbUWC hIDHBMXgpNjstfVT9J5ajQSFPgO8x+SzMp87Up8/Xv8ehqOs88+BMLkCfYGlh5UoQBEE kdjqASoEEt0Yj2qL4RobgQVKcCwaSPtW3fZSxOBD5U+DIxUSHd4Iv6dNxtCm1BF7jXi2 V9WxQE7wZLZZzGaGSxDr5j0Ji9ViZH4hPOdvtQ7BRoeXnMPVUvaNtyQmck5C/peUZTkz k33w== X-Gm-Message-State: AOAM532Z7rd4o9USZZcoObpxvyeDgll7ZW9/EYMigOiiS1uxxLhTQKp/ nZhZePqlHcZlKUQWqPA43Csd5NrdVXehfMnAq/SV1K6mLOPSOQ0N X-Google-Smtp-Source: ABdhPJwTOWuT9QZ5xlrLCp4JSusb8AzBP4vSGK7HLG2Z9f+C572dr9JzZzDd82v6O4x//Lcm2V6seUSb/9cKocOrs80= X-Received: by 2002:a05:6102:5f4:: with SMTP id w20mr18268977vsf.55.1632735638390; Mon, 27 Sep 2021 02:40:38 -0700 (PDT) Received-SPF: pass client-ip=2607:f8b0:4864:20::e2b; envelope-from=hongyi.zhao@gmail.com; helo=mail-vs1-xe2b.google.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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:133287 Archived-At: I noticed the document on closure here [1] implemented in Emacs/Elisp currently. But it's only a very concise and short introduction, and I want to know more about the closures in Emacs and their usage scenarios. Any helpful tips are welcome. [1] https://www.gnu.org/software/emacs/manual/html_node/elisp/Closures.html Regards -- Assoc. Prof. Hongyi Zhao Theory and Simulation of Materials Hebei Vocational University of Technology and Engineering No. 473, Quannan West Street, Xindu District, Xingtai, Hebei province