From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ted Zlatanov Newsgroups: gmane.emacs.devel Subject: Re: more url-utils? Date: Thu, 19 May 2011 08:35:44 -0500 Organization: =?utf-8?B?0KLQtdC+0LTQvtGAINCX0LvQsNGC0LDQvdC+0LI=?= @ Cienfuegos Message-ID: <87d3jezubz.fsf@lifelogs.com> References: <87fwogaxzb.fsf@stupidchicken.com> <87mxilezg8.fsf@lifelogs.com> <87boz0eov8.fsf@lifelogs.com> <87mxikrulm.fsf@lifelogs.com> <871uzw5asv.fsf@lifelogs.com> <87boyzcv0o.fsf@lifelogs.com> <87k4dnassv.fsf@lifelogs.com> <878vu23lpe.fsf@lifelogs.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1305812552 14062 80.91.229.12 (19 May 2011 13:42:32 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 19 May 2011 13:42:32 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu May 19 15:42:28 2011 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QN3Ui-0007BR-9p for ged-emacs-devel@m.gmane.org; Thu, 19 May 2011 15:42:28 +0200 Original-Received: from localhost ([::1]:38823 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QN3Uh-0006CL-Op for ged-emacs-devel@m.gmane.org; Thu, 19 May 2011 09:42:27 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:37482) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QN3Ue-0006Bw-QD for emacs-devel@gnu.org; Thu, 19 May 2011 09:42:25 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QN3Ua-0000F5-PN for emacs-devel@gnu.org; Thu, 19 May 2011 09:42:24 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]:50427) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QN3Ua-0000Ed-4W for emacs-devel@gnu.org; Thu, 19 May 2011 09:42:20 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1QN3UY-000760-5t for emacs-devel@gnu.org; Thu, 19 May 2011 15:42:18 +0200 Original-Received: from 38.98.147.130 ([38.98.147.130]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 19 May 2011 15:42:18 +0200 Original-Received: from tzz by 38.98.147.130 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 19 May 2011 15:42:18 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 29 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: 38.98.147.130 X-Face: bd.DQ~'29fIs`T_%O%C\g%6jW)yi[zuz6; d4V0`@y-~$#3P_Ng{@m+e4o<4P'#(_GJQ%TT= D}[Ep*b!\e,fBZ'j_+#"Ps?s2!4H2-Y"sx" User-Agent: Gnus/5.110018 (No Gnus v0.18) Emacs/24.0.50 (gnu/linux) Cancel-Lock: sha1:Dk+raJPb13B/p7ULd1s59lugJ2E= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 80.91.229.12 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:139515 Archived-At: On Thu, 19 May 2011 10:28:05 -0300 Stefan Monnier wrote: >>>> OK. But if the status is nil we couldn't get any data so there are no >>>> URL properties. So we can have just one callback parameter "url-info" >>>> which is nil if the request failed and an alist if it worked. SM> I think that a boolean status is not sufficient. E.g. in case of SM> failure, we want to have some information about why (e.g. an error SM> message). >> ..but we don't want to throw an error. Hrm. How about "url-info" is >> three possible types: >> 1) nil = failed, no information available (should happen only if there's >> no handler for the URL's protocol) >> 2) atom (string or symbol) = failed, information is the string or the >> symbol's properties SM> How 'bout: the result of url-fetch (either returned in passed to the SM> callback), is list of the form (STATUS . INFO): if STATUS is nil, it SM> means the call was a success and INFO is an alist of auxiliary info such SM> as headers and stuff, and if STATUS is non-nil, it should be an error SM> symbol and INFO is some failure information such that one can do SM> (signal (car result) (cdr result)). Sure, that's a nice solution. I'll use that. Ted