From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: Is there something like `file-name-concat', but for urls? Date: Wed, 26 Jul 2023 14:44:11 +0200 Message-ID: <87mszix2p0.fsf@dataswamp.org> References: <87edkxnb68.fsf@mbork.pl> <877cqoynaa.fsf@dataswamp.org> <87y1j3yhmt.fsf@dataswamp.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="6029"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:6crS+l/8dO1/JKPbNIc4ZiWyzUc= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Jul 26 16:35:10 2023 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 1qOfba-0001LB-Ap for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 26 Jul 2023 16:35:10 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qOfTm-0007nr-PY; Wed, 26 Jul 2023 10:27:08 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qOdsM-0004iY-CM for help-gnu-emacs@gnu.org; Wed, 26 Jul 2023 08:44:22 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qOdsK-0000WB-JF for help-gnu-emacs@gnu.org; Wed, 26 Jul 2023 08:44:22 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1qOdsI-0006k4-NT for help-gnu-emacs@gnu.org; Wed, 26 Jul 2023 14:44:18 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Wed, 26 Jul 2023 10:26:14 -0400 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 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-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:144469 Archived-At: Here is how to do it in Emacs. If you read the docstring for `url-generic-parse-url', you see that it is based on RFC 3986, even. Don't mention it ... ;;; -*- lexical-binding: t -*- ;; ;; this file: ;; https://dataswamp.org/~incal/emacs-init/misc.el (require 'cl-lib) (require 'url-parse) (defun valid-url (url) (let ((data (url-generic-parse-url url))) (when (cl-struct-slot-value 'url 'type data) t) )) ;; (valid-url "https://dataswamp.org/~incal/") ; t ;; (valid-url "dataswamp.org/~incal/") ; nil -- underground experts united https://dataswamp.org/~incal