From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Nicolas Petton Newsgroups: gmane.emacs.bugs Subject: bug#30626: 26.0.91; Crash when traversing a `stream-of-directory-files' Date: Fri, 02 Mar 2018 21:58:43 +0100 Message-ID: <87sh9ifb3w.fsf@petton.fr> References: <87inaiss6l.fsf@web.de> <6FCF6ACA-4F29-4B6B-BE9D-D7130C6E9495@gnu.org> <87fu5moe4c.fsf@web.de> <877eqyocro.fsf@web.de> <83zi3uz4nb.fsf@gnu.org> <87lgfd52by.fsf@gmail.com> <87bmg91ity.fsf@web.de> <83h8q1yuin.fsf@gnu.org> <87po4pnl0a.fsf@web.de> <837eqxyqoe.fsf@gnu.org> <87lgfdnf86.fsf@web.de> <87muzs11hk.fsf@web.de> <87606e4lel.fsf@gmail.com> <87vaeefd23.fsf@petton.fr> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" X-Trace: blaine.gmane.org 1520024231 21885 195.159.176.226 (2 Mar 2018 20:57:11 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 2 Mar 2018 20:57:11 +0000 (UTC) Cc: 30626@debbugs.gnu.org To: Noam Postavsky , Michael Heerdegen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Mar 02 21:57:06 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1errjm-0005F0-3n for geb-bug-gnu-emacs@m.gmane.org; Fri, 02 Mar 2018 21:57:06 +0100 Original-Received: from localhost ([::1]:37451 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1errlo-0001Dp-L8 for geb-bug-gnu-emacs@m.gmane.org; Fri, 02 Mar 2018 15:59:12 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:52603) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1errlh-0001DS-Nb for bug-gnu-emacs@gnu.org; Fri, 02 Mar 2018 15:59:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1errle-0001EU-M0 for bug-gnu-emacs@gnu.org; Fri, 02 Mar 2018 15:59:05 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:33666) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1errle-0001Dy-7D for bug-gnu-emacs@gnu.org; Fri, 02 Mar 2018 15:59:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1errld-0002Z8-Pu for bug-gnu-emacs@gnu.org; Fri, 02 Mar 2018 15:59:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Nicolas Petton Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 02 Mar 2018 20:59:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 30626 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 30626-submit@debbugs.gnu.org id=B30626.15200243379849 (code B ref 30626); Fri, 02 Mar 2018 20:59:01 +0000 Original-Received: (at 30626) by debbugs.gnu.org; 2 Mar 2018 20:58:57 +0000 Original-Received: from localhost ([127.0.0.1]:41563 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1errlY-0002Yn-LT for submit@debbugs.gnu.org; Fri, 02 Mar 2018 15:58:56 -0500 Original-Received: from petton.fr ([89.234.186.68]:55950) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1errlW-0002Ya-R1 for 30626@debbugs.gnu.org; Fri, 02 Mar 2018 15:58:55 -0500 In-Reply-To: <87vaeefd23.fsf@petton.fr> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=petton.fr; s=mail; t=1520024328; bh=pCuSUfM/JR20t69Ko1sc5/gGVnBXN+Zut5DaPsxviBA=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID:MIME-Version:Content-Type; b=Hta5hPEjUqpNcrFoB4oYRWNJAiTkuffh45Mu9zcdc8txjqSrAAjaJg9O3osKm3hor128mWpUcH6VBpZwqzHAEBB/uqYTZXbF2xkeNrdrUjRTUnqHSk/+rgacvhVrxhTOfkNxJF2mH51AvHL8oZbTGzsei3bLFhX9iA2yUItOBhE= X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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" Xref: news.gmane.org gmane.emacs.bugs:143846 Archived-At: --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Nicolas Petton writes: > If we accept that `seq-elt', and other positional functions of seq.el > should not work on streams, then I could rewrite stream.el to make it a > positioned stream where previous elements are discarded after each > element generation. However the list of supported functions from seq.el > API would be significantly reduced. I had something like the following in mind: (cl-defstruct nstream current next-function) =20=20 (cl-defmethod nstream-next ((stream nstream)) (setf (nstream-current stream) (funcall (nstream-next-function stream) (nstream-current stream)))) =20=20 (defun nstream-range (&optional start end step) (unless start (setq start 0)) (unless step (setq step 1)) (make-nstream :current start :next-function (lambda (cur) (if (equal cur end) nil (+ cur step))))) Cheers, Nico --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEE1AWqLIYsVPF+7mvg6LzXhmr8+XgFAlqZuwMACgkQ6LzXhmr8 +Xh6vwf9GP46u+qqF2r5QY4/X4PK6TDmpvRnKBtsJ6g1Mw1x6E3ZXwrRSz10v9sK Dn9sexvOxJb8gqK6B5jqgbAQP0H0qGkW66liRR/Hls5It3rKZ9yHAGLFEEKaMMUp 90mfKFdSQzpyaeZLoBWIAVuoO30mcxq1DgpoJN+yJ3RkYgBz1Vbp4+eS3UI9OU2+ zzYA7SXeKBU64hzfjwrK0oF89cPvz4kyeRLSLkynFCEX/oRMiQyVWy1BSegAxXHI 3oVtpsqMc703rcioWdyla/JkulVSlhlmRVwPb2Nwf6ufy9IzEz9WhIKoBZAwWNlp Zzn0DJWfH1khIwBjr25i48YtuOG8RQ== =DErk -----END PGP SIGNATURE----- --=-=-=--