From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Marko Rauhamaa Newsgroups: gmane.lisp.guile.user Subject: Re: guile can't find a chinese named file Date: Fri, 17 Feb 2017 10:46:32 +0200 Message-ID: <871suxtdav.fsf@elektro.pacujo.net> References: <878tpsqtzl.fsf@fencepost.gnu.org> <83zihmy6wb.fsf@gnu.org> <87wpcq38sa.fsf@elektro.pacujo.net> <87efyy4k4c.fsf@fencepost.gnu.org> <87mvdmv3kg.fsf@elektro.pacujo.net> <8760ka4drd.fsf@fencepost.gnu.org> <87h93uv1kl.fsf@elektro.pacujo.net> <871suy4cha.fsf@fencepost.gnu.org> <877f4qv0a8.fsf@elektro.pacujo.net> <87wpcq2w58.fsf@fencepost.gnu.org> <871suyuyby.fsf@elektro.pacujo.net> <83tw7uxg1o.fsf@gnu.org> <87efyyt7jb.fsf@elektro.pacujo.net> <83o9y2xc3w.fsf@gnu.org> <87o9y2yo9k.fsf@elektro.pacujo.net> <83h93ux9br.fsf@gnu.org> <87efyyyln3.fsf@elektro.pacujo.net> <83fujdyk0y.fsf@gnu.org> <87r32xoo2n.fsf@fencepost.gnu.org> <8737fdzvnk.fsf@elektro.pacujo.net> <83bmu1xqns.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1487322210 12245 195.159.176.226 (17 Feb 2017 09:03:30 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 17 Feb 2017 09:03:30 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) Cc: guile-user@gnu.org, dak@gnu.org To: Eli Zaretskii Original-X-From: guile-user-bounces+guile-user=m.gmane.org@gnu.org Fri Feb 17 10:03:25 2017 Return-path: Envelope-to: guile-user@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 1ceeRo-0002jb-Kw for guile-user@m.gmane.org; Fri, 17 Feb 2017 10:03:24 +0100 Original-Received: from localhost ([::1]:52279 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ceeRu-0001SW-58 for guile-user@m.gmane.org; Fri, 17 Feb 2017 04:03:30 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:48272) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ceeBb-0002w5-PB for guile-user@gnu.org; Fri, 17 Feb 2017 03:46:40 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ceeBa-00050c-VY for guile-user@gnu.org; Fri, 17 Feb 2017 03:46:39 -0500 Original-Received: from [2001:1bc8:1a0:5384:7a2b:cbff:fe9f:e508] (port=34648 helo=pacujo.net) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ceeBY-0004wf-8P; Fri, 17 Feb 2017 03:46:36 -0500 Original-Received: from elektro.pacujo.net (192.168.1.200) by elektro.pacujo.net; Fri, 17 Feb 2017 10:46:32 +0200 Original-Received: by elektro.pacujo.net (sSMTP sendmail emulation); Fri, 17 Feb 2017 10:46:32 +0200 In-Reply-To: <83bmu1xqns.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 17 Feb 2017 08:44:23 +0200") X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2001:1bc8:1a0:5384:7a2b:cbff:fe9f:e508 X-BeenThere: guile-user@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: General Guile related discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-user-bounces+guile-user=m.gmane.org@gnu.org Original-Sender: "guile-user" Xref: news.gmane.org gmane.lisp.guile.user:13279 Archived-At: Eli Zaretskii : >> From: Marko Rauhamaa >> Python uses the surrogate hole in the middle of the Unicode range to >> represent such stray bytes, but only when naming files. > > IMO, it makes no sense to limit this to file names, because (a) you > don't always know on all levels of the code which string is a file > name or a part thereof; and (b) because situations where non-ASCII > bytes cannot be properly decoded into Unicode happen with text that is > not file names, and users still expect Emacs to silently produce the > same byte stream on round-trip operations, e.g., when copying text > from one file to another. Python just barfs: $ python3 -c "import sys; print(sys.stdin.read(30))" <<<$'\xdd' Traceback (most recent call last): File "", line 1, in File "/usr/lib64/python3.5/codecs.py", line 321, in decode (result, consumed) = self._buffer_decode(data, self.errors, final) UnicodeDecodeError: 'utf-8' codec can't decode byte 0xdd in position \ 0: invalid continuation byte The situation is a bit difficult to recover from. Marko