Received: (at 40896) by debbugs.gnu.org; 28 Jan 2022 15:34:28 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Jan 28 10:34:28 2022 Received: from localhost ([127.0.0.1]:60261 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1nDTGe-0007hy-4Q for submit <at> debbugs.gnu.org; Fri, 28 Jan 2022 10:34:28 -0500 Received: from quimby.gnus.org ([95.216.78.240]:43184) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <larsi@HIDDEN>) id 1nDTGb-0007hg-UG for 40896 <at> debbugs.gnu.org; Fri, 28 Jan 2022 10:34:26 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=ne69dVcuQd1f/Y0UuNvKpQXcO1wE+1iyMbn3UYzsiyU=; b=Jq3BuXrRmiqPNixYbn7nmVWd6g 4AvorMw+p5FX+Mp/W2iw9kAAqTlRNYMbNWTwMzOOdx7N01vOSnk9dLzbamCdSr8a0DfL+bjy3DWR1 8CcIE9i6h3vk9z9Ssm/YkPg9DQjVw24CclUOcjGfT3vJT9IzoDJLNKOqVxsfbV1HYgbg=; Received: from [84.212.220.105] (helo=giant) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from <larsi@HIDDEN>) id 1nDTGS-0003nN-WF; Fri, 28 Jan 2022 16:34:19 +0100 From: Lars Ingebrigtsen <larsi@HIDDEN> To: Michael Albinus <michael.albinus@HIDDEN> Subject: Re: bug#40896: 27.0.91; Moving point fails sometimes in shell-command References: <877dy1miy4.fsf@HIDDEN> <83v9ll3s68.fsf@HIDDEN> <87lfmgyfzy.fsf@HIDDEN> <837dxz3kww.fsf@HIDDEN> <87tv13wuzo.fsf@HIDDEN> <874kt113zx.fsf@HIDDEN> <83mu6qu13b.fsf@HIDDEN> <87zhaqwkem.fsf@HIDDEN> X-Now-Playing: Phew's _Phew_: "Doze" Date: Fri, 28 Jan 2022 16:34:16 +0100 In-Reply-To: <87zhaqwkem.fsf@HIDDEN> (Michael Albinus's message of "Sat, 02 May 2020 15:12:17 +0200") Message-ID: <871r0rg9hj.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Report: Spam detection software, running on the system "quimby.gnus.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Michael Albinus <michael.albinus@HIDDEN> writes: > Almost. But it is not documented. Maybe we shall apply the appended > patch. And if shell-command-dont-erase-buffer is end-last-out with > output buffer not being the current one, the behavior is si [...] Content analysis details: (-2.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 40896 Cc: Eli Zaretskii <eliz@HIDDEN>, 40896 <at> debbugs.gnu.org, tino.calancha@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) Michael Albinus <michael.albinus@HIDDEN> writes: > Almost. But it is not documented. Maybe we shall apply the appended > patch. And if shell-command-dont-erase-buffer is end-last-out with > output buffer not being the current one, the behavior is simply > wrong, see my previous analysis. At least *this* case must be fixed. I've now applied the proposed patch, with some slight alterations. And the parameters to these shell functions are very, very confusing. At this point, perhaps it'd be better to write some new functions in this area that have less weird parameters. But fixing end-last-out would also be nice. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no
bug-gnu-emacs@HIDDEN:bug#40896; Package emacs.
Full text available.Received: (at 40896) by debbugs.gnu.org; 2 May 2020 13:12:39 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat May 02 09:12:38 2020 Received: from localhost ([127.0.0.1]:51517 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1jUrwR-0002AV-36 for submit <at> debbugs.gnu.org; Sat, 02 May 2020 09:12:38 -0400 Received: from mout.gmx.net ([212.227.17.22]:57475) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <michael.albinus@HIDDEN>) id 1jUrwP-0002AE-HD for 40896 <at> debbugs.gnu.org; Sat, 02 May 2020 09:12:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1588425138; bh=GLDFbV0HfHq3MxZCYlxUHOp7ORs3gOa7FuZoGju68o8=; h=X-UI-Sender-Class:From:To:Cc:Subject:References:Date:In-Reply-To; b=O4OHfkqJE4NyQaOCpAriDc7THviv4lw/ijmwOVmQZJgQN+WEIdTI1y1N93DUrLYLU mISe/QWjWHwWdMvh/cZrCbcx2cZm4CBISWRe7ldZs7to8KCXDu5TdGfJSy3qaZK26q Se831OEPNQtWnP+TTeTZikOo4ntEmWXCiOr2z5xg= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from gandalf.gmx.de ([79.140.112.148]) by mail.gmx.com (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MrhUK-1iqGFa2t3k-00njt1; Sat, 02 May 2020 15:12:18 +0200 From: Michael Albinus <michael.albinus@HIDDEN> To: Eli Zaretskii <eliz@HIDDEN> Subject: Re: bug#40896: 27.0.91; Moving point fails sometimes in shell-command References: <877dy1miy4.fsf@HIDDEN> <83v9ll3s68.fsf@HIDDEN> <87lfmgyfzy.fsf@HIDDEN> <837dxz3kww.fsf@HIDDEN> <87tv13wuzo.fsf@HIDDEN> <874kt113zx.fsf@HIDDEN> <83mu6qu13b.fsf@HIDDEN> Date: Sat, 02 May 2020 15:12:17 +0200 In-Reply-To: <83mu6qu13b.fsf@HIDDEN> (Eli Zaretskii's message of "Sat, 02 May 2020 12:40:08 +0300") Message-ID: <87zhaqwkem.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" X-Provags-ID: V03:K1:wDLIOsySDZvnXSAQvJjIms80H9Nxtxwti2jUeE6vLtSw5k6n6i6 hJZMrYKyBJ6aQ3yd9X0JBY82odVIdiFyrZU5BP0vYLn0w950EVie4ZHvunfopQwLwOwwA6+ vAf7dFpesup5+X5vC1FXeA/vETLbYzBZffc+qNNjP0IGUovWDumcb9jMNsAMo7Ygq9lypLP 0CeDAnHN2zt9bIpqNeKgQ== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:CS8hCbzb0h0=:ivKRNnrz3XH30fQHq4rvht kV31lhPbDUc7hXKy8nPOA5AtwXKuveQ4kxr1hfz3nzlzwx3MjD2SyOFQPsO9wyrKpJGvxGufn PAHRVIGRsm0bQfRrhCGHX5UBU6rdLFMipAAdV2V7Hjl0ahmoq0q0kqi2sw05tlVfROs4EDkVG 1pwRUFYeqs8KedmVJpkSEWiy9eTRDAqooc1o9LTSW+pcKUmo/8oz0VogyVK7KZ9Ag3xcELdhA pFaDQYnLBb7TDqPcTwm/w8yI6IeIl+4yRau1+FWuqGYM3O1V8WaWOit5cjzb2le4gXSuhnxfb TCOUqqaFN4n1z104BF7EGX7SnxAakXdd0nRs8ltCUBEWG+gHhrSsxRe73Pg/VlBfq7WWutvgn DB3SWMxEZgozUPS9HVysYlMLHpX/61WozNdUunb3rR9uc9Hqx+RkU3Wohf4t9cEkLbepFswd+ 2DNPsXKNxA8y3qqdrj9RmMSvjnvkYzLaz1y73XeFMQnvowvf78SuQ6I7l7Ileg2qr83jTgwjy FHw6OqLgMxDX00SeikGynguX2KF/5IfR3Brg0jF5GyPNgob/QaoiF1XiVrh5VVSIGjoXGK3fK tTLur04t4HhimbtWILtKgkk2bXGkev85pZ38VRrykQHgG+wDvi1Di7jgRgNMx1zHx6eRYDl/C Uww+GHPbHJzZwhA1ovqfgykA9luhBmNNMDkc6YP9YtmcR7kHOrfQRZGH1//ie1xoSfZSsR+0Y K/BzsrlgupgBlaoOa4RAYd2DaFDyVfbEiiqI5L9pvWQOxEHib+T+rE1OB4T3z6Awoh8BsOBC+ Dv4txwP2uudrFArhHh1VcGj9uQ+jZTWISfBsVfYBnBYjQa5jzV8wZRD8Lhaj6MLQI2KvQFDTO b7vIq9a0rHmMeXfPXeF1mhad9T29689XO1kd2hQ/KkjN9VEa7cyb8rVEmK8azoqIJiM8fWwBM lyiijfzQ9a8loMICATg4aoEm9FKUevGBD7CXN3DYCRXoAs9D0LkMsXbR90BcUmyR9kTf53H9N AY+hmIqHDHTkLllO9tg9kPmENDgjX5pjhrPb58aMAVawHR366ZRXJd8bhu+sRxWwB+U5qYsQP k6K9BHCsTjh4w3Akf8IRFJOEWUzKAXnvvweosiNuEWfIa0kirljnIyd7sp0WoOIuuA/RBm91M 3E0ucM/ZUeJILL8Y/mWDelxQTk6E6BJ6HfuPrafNqq5PQPY3yDGxC168b7FM0/sjcIOCSArcH cJELM6chKi2UZHzTO X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 40896 Cc: 40896 <at> debbugs.gnu.org, tino.calancha@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) --=-=-= Content-Type: text/plain Eli Zaretskii <eliz@HIDDEN> writes: Hi Eli, >> In order to understand the situation better, I have enhanced my test >> code to cover all different values of shell-command-dont-erase-buffer, >> and whether the OUTPUT-BUFFER argument of shell-command is the current >> buffer, or not. Here's the code: > > AFAIU, the use case of OUTPUT-BUFFER being different from the current > buffer is meant for the case where subsequent commands accumulate the > output in that buffer, which is why the output is appended in that > case. > > Does what you see make more sense now? Almost. But it is not documented. Maybe we shall apply the appended patch. And if shell-command-dont-erase-buffer is end-last-out with output buffer not being the current one, the behavior is simply wrong, see my previous analysis. At least *this* case must be fixed. Best regards, Michael. --=-=-= Content-Type: text/x-patch Content-Disposition: attachment Content-Transfer-Encoding: quoted-printable diff --git a/doc/emacs/misc.texi b/doc/emacs/misc.texi index 47f195d0b2..ca3d52c36a 100644 =2D-- a/doc/emacs/misc.texi +++ b/doc/emacs/misc.texi @@ -846,6 +846,9 @@ Single Shell shell-command output. @end table +In case the output buffer is not the current buffer, shell command +output is appended at the end of this buffer. + @node Interactive Shell @subsection Interactive Subshell diff --git a/lisp/simple.el b/lisp/simple.el index ab277c4e11..2f0626d96e 100644 =2D-- a/lisp/simple.el +++ b/lisp/simple.el @@ -3606,6 +3606,9 @@ shell-command interactively when the prefix argument is given), insert the output in current buffer after point leaving mark after it. This cannot be done asynchronously. +If OUTPUT-BUFFER is a buffer or buffer name different from the +current buffer, append the output in this buffer instead of +inserting it at point. The user option `shell-command-dont-erase-buffer', which see, controls whether the output buffer is erased and where to put point after --=-=-=--
bug-gnu-emacs@HIDDEN:bug#40896; Package emacs.
Full text available.Received: (at 40896) by debbugs.gnu.org; 2 May 2020 09:40:39 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat May 02 05:40:38 2020 Received: from localhost ([127.0.0.1]:51270 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1jUodE-0003Do-2t for submit <at> debbugs.gnu.org; Sat, 02 May 2020 05:40:38 -0400 Received: from eggs.gnu.org ([209.51.188.92]:34294) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1jUodD-0003Da-D9 for 40896 <at> debbugs.gnu.org; Sat, 02 May 2020 05:40:23 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:54136) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1jUod7-00046q-7w; Sat, 02 May 2020 05:40:17 -0400 Received: from [176.228.60.248] (port=3307 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1jUod6-0002h4-KW; Sat, 02 May 2020 05:40:17 -0400 Date: Sat, 02 May 2020 12:40:08 +0300 Message-Id: <83mu6qu13b.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Michael Albinus <michael.albinus@HIDDEN> In-Reply-To: <874kt113zx.fsf@HIDDEN> (message from Michael Albinus on Thu, 30 Apr 2020 15:45:38 +0200) Subject: Re: bug#40896: 27.0.91; Moving point fails sometimes in shell-command References: <877dy1miy4.fsf@HIDDEN> <83v9ll3s68.fsf@HIDDEN> <87lfmgyfzy.fsf@HIDDEN> <837dxz3kww.fsf@HIDDEN> <87tv13wuzo.fsf@HIDDEN> <874kt113zx.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 40896 Cc: 40896 <at> debbugs.gnu.org, tino.calancha@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) > From: Michael Albinus <michael.albinus@HIDDEN> > Cc: 40896 <at> debbugs.gnu.org, tino.calancha@HIDDEN > Date: Thu, 30 Apr 2020 15:45:38 +0200 > > In order to understand the situation better, I have enhanced my test > code to cover all different values of shell-command-dont-erase-buffer, > and whether the OUTPUT-BUFFER argument of shell-command is the current > buffer, or not. Here's the code: AFAIU, the use case of OUTPUT-BUFFER being different from the current buffer is meant for the case where subsequent commands accumulate the output in that buffer, which is why the output is appended in that case. Does what you see make more sense now?
bug-gnu-emacs@HIDDEN:bug#40896; Package emacs.
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From: Michael Albinus <michael.albinus@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#40896: 27.0.91; Moving point fails sometimes in shell-command
References: <877dy1miy4.fsf@HIDDEN> <83v9ll3s68.fsf@HIDDEN>
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Date: Thu, 30 Apr 2020 15:45:38 +0200
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Michael Albinus <michael.albinus@HIDDEN> writes:
Hi Eli,
> Maybe all of this is irrelevant in real life. But I'm fighting with
> Tramp, in order to let its shell-command implementation behave like in
> the local case.
In order to understand the situation better, I have enhanced my test
code to cover all different values of shell-command-dont-erase-buffer,
and whether the OUTPUT-BUFFER argument of shell-command is the current
buffer, or not. Here's the code:
--8<---------------cut here---------------start------------->8---
(progn
(message " s-c-d-e-b current-buffer buffer-string point")
(message "===============================================")
(let ((default-directory temporary-file-directory)
buffer)
;; These are the possible values of `shell-command-dont-erase-buffer'.
;; `random' is taken as non-nil value without special meaning.
(dolist (shell-command-dont-erase-buffer
'(nil erase beg-last-out end-last-out save-point random))
;; `shell-command' might work over the current buffer, or not.
(dolist (current '(t nil))
(with-temp-buffer
;; We insert the string "foobar" into an empty buffer.
;; Point is set between "foo" and "bar".
(setq buffer (current-buffer))
(insert "foobar")
(goto-char (- (point) 3))
;; Apply `shell-command'. It shall output the string
;; "bazz". Messages in the *Messages* buffer are
;; suppressed.
(let (message-log-max)
(if current
(shell-command "echo -n bazz" (current-buffer))
(with-temp-buffer (shell-command "echo -n bazz" buffer))))
;; Print result.
(message
"%12s %14s %13s %5d"
shell-command-dont-erase-buffer current (buffer-string) (point))))
(message "-----------------------------------------------"))))
--8<---------------cut here---------------end--------------->8---
In a temporary buffer, the string "foobar" is inserted. Point is set
between "foo" and "bar". Then, shell-command is called, which outputs
the string "bazz".
The result can be seen in the *Messages* buffer. Honestly, I cannot say
whether this is conform to the docstring of shell-command (I have read
it several times), because it describes too many cases, and it is not
always clear how the combination of the cases is meant. But at least, I
would say the results look inconsistent.
A first observation is, that the output is inserted at (point) if
OUTPUT-BUFFER is the current buffer, and it is appended at (point-max)
if OUTPUT-BUFFER is not the current buffer. The fact, that the output is
appended at the end of the buffer, isn't mentioned anywhere in the doc AFAICT.
Now, let's see the details:
--8<---------------cut here---------------start------------->8---
s-c-d-e-b current-buffer buffer-string point
===============================================
nil t foobazzbar 4
nil nil bazz 5
--8<---------------cut here---------------end--------------->8---
shell-command-dont-erase-buffer is nil. In case OUTPUT-BUFFER is the
current one, "bazz" is inserted at (point), and (point) is
preserved. Fine. In case OUTPUT-BUFFER is not the current one, the
buffer is erased, which as OK. However, (point) is NOT preserved, but
moved to the end of the shell command output. That doesn't sound right.
--8<---------------cut here---------------start------------->8---
erase t bazz 1
erase nil bazz 5
--8<---------------cut here---------------end--------------->8---
shell-command-dont-erase-buffer is erase. In both cases of
OUTPUT-BUFFER, the buffer is erased (as expected), but again, in case
OUTPUT-BUFFER is not the current one, (point) is moved after the shell
command output.
--8<---------------cut here---------------start------------->8---
beg-last-out t foobazzbar 4
beg-last-out nil foobarbazz 7
--8<---------------cut here---------------end--------------->8---
shell-command-dont-erase-buffer is beg-last-out. Shell command output is
inserted in case OUTPUT-BUFFER is the current one, and it is appended
otherwise. (point) is moved in both cases to the begin of the shell
command output, which is consistent, but I don't still see why the
output is either inserted, or appended.
--8<---------------cut here---------------start------------->8---
end-last-out t foobazzbar 4
end-last-out nil foobazzbar 11
--8<---------------cut here---------------end--------------->8---
shell-command-dont-erase-buffer is end-last-out. In case OUTPUT-BUFFER
is the current one everything looks as expected. But in the other case,
OUTPUT-BUFFER is not the current buffer, the result is irritating. Shell
command is inserted in this case at (point), and (point) is not moved to the
end of the shell command output, but to the end of the buffer. Strange!
--8<---------------cut here---------------start------------->8---
save-point t foobazzbar 4
save-point nil foobarbazz 4
--8<---------------cut here---------------end--------------->8---
shell-command-dont-erase-buffer is save-point. And indeed, (point) is
saved in both cases. But again, shell command output is appended at the
end of the buffer, instead of being inserted at (point).
--8<---------------cut here---------------start------------->8---
random t foobazzbar 4
random nil foobazzbar 11
--8<---------------cut here---------------end--------------->8---
shell-command-dont-erase-buffer is random, which stands for a non-nil
value which has no special meaning. It behaves like end-last-out. I
don't know whether this is intended; if yes, it shall be documented.
Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#40896; Package emacs.
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From: Michael Albinus <michael.albinus@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#40896: 27.0.91; Moving point fails sometimes in shell-command
References: <877dy1miy4.fsf@HIDDEN> <83v9ll3s68.fsf@HIDDEN>
<87lfmgyfzy.fsf@HIDDEN> <837dxz3kww.fsf@HIDDEN>
Date: Tue, 28 Apr 2020 16:22:19 +0200
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Eli Zaretskii <eliz@HIDDEN> writes:
>> From: Michael Albinus <michael.albinus@HIDDEN>
>> Cc: 40896 <at> debbugs.gnu.org, tino.calancha@HIDDEN
>> Date: Mon, 27 Apr 2020 19:50:57 +0200
>>=20
>> Hmm, maybe I have been biased with the Tramp behaviour. But still,
>> there's suspicious behaviour with shell-command:
>
> I think these also behave as intended. In general, all the non-nil
> values of shell-command-dont-erase-buffer are set up to accumulate
> output of several consecutive commands. Once again, perhaps the
> documentation needs to be clarified.
Whatever shell-command-dont-erase-buffer says, shell-command output in
non-interactive mode shall be inserted at point, possibly after erasing
the buffer first. The first example I gave shows that this doesn't happen:
--8<---------------cut here---------------start------------->8---
;; Don't erase if the buffer is not the current one and
;; `shell-command-dont-erase-buffer' is set to `save-point'.
;; Check point.
(let ((default-directory temporary-file-directory)
(shell-command-dont-erase-buffer 'save-point)
buffer point)
(with-temp-buffer
(setq buffer (current-buffer))
(insert "foobar")
(goto-char (- (point-max) 3))
(setq point (point))
(cl-assert (string-equal "foobar" (buffer-string)))
(cl-assert (string-equal "foo" (buffer-substring (point-min) (point))))
(cl-assert (string-equal "bar" (buffer-substring (point) (point-max))))
(cl-assert (=3D (point) (- (point-max) 3)))
(with-temp-buffer
(shell-command "echo baz" buffer))
;; The shell command output should be inserted between "foo" and "bar".
(cl-assert (string-equal "foobaz\nbar" (buffer-string)) 'show-args)
(cl-assert (=3D point (point)) 'show-args)))
--8<---------------cut here---------------end--------------->8---
Note that in case the buffer the output has to be inserted in is the
current one, this test succeeds. You can achieve this be replacing
'(with-temp-buffer (shell-command "echo baz" buffer))' by
'(shell-command "echo baz" buffer)'. This is inconsistent, isn't it? And
I haven't found any indication, that in case the buffer is not the
current one, shell command is inserted at the end of the buffer instead
of being inserted at point.
The second test case I've shown indicates, that a random value of
shell-command-dont-erase-buffer (I use the symbol 'random' here) doesn't
behave as expected. The docstring of that user option is not clear to
me: could it be, that the special symbols 'beg-last-out', 'end-last-out'
and =E2=80=98save-point=E2=80=99 indicate only setting the point if the buf=
fer is the
current one? Why that? It's inconsistent in my eyes.
Maybe all of this is irrelevant in real life. But I'm fighting with
Tramp, in order to let its shell-command implementation behave like in
the local case.
Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#40896; Package emacs.
Full text available.Received: (at 40896) by debbugs.gnu.org; 28 Apr 2020 11:33:18 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Apr 28 07:33:18 2020 Received: from localhost ([127.0.0.1]:39173 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1jTOUI-0006H9-Bm for submit <at> debbugs.gnu.org; Tue, 28 Apr 2020 07:33:18 -0400 Received: from eggs.gnu.org ([209.51.188.92]:47740) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1jTOUG-0006Gv-Ee for 40896 <at> debbugs.gnu.org; Tue, 28 Apr 2020 07:33:16 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:56883) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1jTOUB-0000Oo-48; Tue, 28 Apr 2020 07:33:11 -0400 Received: from [176.228.60.248] (port=3161 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1jTOU8-0004z9-2B; Tue, 28 Apr 2020 07:33:10 -0400 Date: Tue, 28 Apr 2020 14:32:47 +0300 Message-Id: <837dxz3kww.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Michael Albinus <michael.albinus@HIDDEN> In-Reply-To: <87lfmgyfzy.fsf@HIDDEN> (message from Michael Albinus on Mon, 27 Apr 2020 19:50:57 +0200) Subject: Re: bug#40896: 27.0.91; Moving point fails sometimes in shell-command References: <877dy1miy4.fsf@HIDDEN> <83v9ll3s68.fsf@HIDDEN> <87lfmgyfzy.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 40896 Cc: 40896 <at> debbugs.gnu.org, tino.calancha@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Michael Albinus <michael.albinus@HIDDEN> > Cc: 40896 <at> debbugs.gnu.org, tino.calancha@HIDDEN > Date: Mon, 27 Apr 2020 19:50:57 +0200 > > Hmm, maybe I have been biased with the Tramp behaviour. But still, > there's suspicious behaviour with shell-command: I think these also behave as intended. In general, all the non-nil values of shell-command-dont-erase-buffer are set up to accumulate output of several consecutive commands. Once again, perhaps the documentation needs to be clarified.
bug-gnu-emacs@HIDDEN:bug#40896; Package emacs.
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From: Michael Albinus <michael.albinus@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#40896: 27.0.91; Moving point fails sometimes in shell-command
References: <877dy1miy4.fsf@HIDDEN> <83v9ll3s68.fsf@HIDDEN>
Date: Mon, 27 Apr 2020 19:50:57 +0200
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Eli Zaretskii <eliz@HIDDEN> writes:
Hi Eli,
>> `shell-command' shall move the point after the output of the command,
>> unless indicated otherwise by `shell-command-dont-erase-buffer'.
>
> Which part(s) of the documentation caused this interpretation? AFAIK,
> the truth is that the output is inserted at point (i.e. point is left
> _before_ the output), unless indicated otherwise by
> shell-command-dont-erase-buffer. So if something we say tricks you to
> think otherwise, we need to fix that text.
Hmm, maybe I have been biased with the Tramp behaviour. But still,
there's suspicious behaviour with shell-command:
--8<---------------cut here---------------start------------->8---
;; Don't erase if the buffer is not the current one and
;; `shell-command-dont-erase-buffer' is set to `save-point'.
;; Check point.
(let ((default-directory temporary-file-directory)
(shell-command-dont-erase-buffer 'save-point)
buffer point)
(with-temp-buffer
(setq buffer (current-buffer))
(insert "foobar")
(goto-char (- (point-max) 3))
(setq point (point))
(cl-assert (string-equal "foobar" (buffer-string)))
(cl-assert (string-equal "foo" (buffer-substring (point-min) (point))))
(cl-assert (string-equal "bar" (buffer-substring (point) (point-max))))
(cl-assert (= (point) (- (point-max) 3)))
(with-temp-buffer
(shell-command "echo baz" buffer))
;; The shell command output should be inserted between "foo" and "bar".
(cl-assert (string-equal "foobaz\nbar" (buffer-string)) 'show-args)
(cl-assert (= point (point)) 'show-args)))
;; Don't erase if the buffer is not the current one and
;; `shell-command-dont-erase-buffer' is set to a non-nil value.
;; Point should be before shell command output.
(let ((default-directory temporary-file-directory)
(shell-command-dont-erase-buffer 'random)
buffer point)
(with-temp-buffer
(setq buffer (current-buffer))
(insert "foobar")
(setq point (point))
(cl-assert (string-equal "foobar" (buffer-string)))
(cl-assert (= (point) (point-max)))
(with-temp-buffer
(shell-command "echo baz" buffer))
(cl-assert (string-equal "foobarbaz\n" (buffer-string)) 'show-args)
;; Point should be the same.
(cl-assert (= point (point)) 'show-args)))
--8<---------------cut here---------------end--------------->8---
Unless I still misunderstand something, these cases should be checked. I
will work on Tramp when clarified.
> Thanks.
Best regards, Michael.
bug-gnu-emacs@HIDDEN:bug#40896; Package emacs.
Full text available.Received: (at 40896) by debbugs.gnu.org; 27 Apr 2020 14:43:57 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Apr 27 10:43:57 2020 Received: from localhost ([127.0.0.1]:37778 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1jT4zF-0008S6-LK for submit <at> debbugs.gnu.org; Mon, 27 Apr 2020 10:43:57 -0400 Received: from eggs.gnu.org ([209.51.188.92]:54584) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1jT4zE-0008Rt-0A for 40896 <at> debbugs.gnu.org; Mon, 27 Apr 2020 10:43:56 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:36888) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1jT4z7-0003aN-EL; Mon, 27 Apr 2020 10:43:49 -0400 Received: from [176.228.60.248] (port=2381 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1jT4z5-00081c-Rt; Mon, 27 Apr 2020 10:43:48 -0400 Date: Mon, 27 Apr 2020 17:43:43 +0300 Message-Id: <83v9ll3s68.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Michael Albinus <michael.albinus@HIDDEN> In-Reply-To: <877dy1miy4.fsf@HIDDEN> (message from Michael Albinus on Mon, 27 Apr 2020 10:28:03 +0200) Subject: Re: bug#40896: 27.0.91; Moving point fails sometimes in shell-command References: <877dy1miy4.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 40896 Cc: 40896 <at> debbugs.gnu.org, tino.calancha@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Michael Albinus <michael.albinus@HIDDEN> > Date: Mon, 27 Apr 2020 10:28:03 +0200 > Cc: Tino Calancha <tino.calancha@HIDDEN> > > `shell-command' shall move the point after the output of the command, > unless indicated otherwise by `shell-command-dont-erase-buffer'. Which part(s) of the documentation caused this interpretation? AFAIK, the truth is that the output is inserted at point (i.e. point is left _before_ the output), unless indicated otherwise by shell-command-dont-erase-buffer. So if something we say tricks you to think otherwise, we need to fix that text. Thanks.
bug-gnu-emacs@HIDDEN:bug#40896; Package emacs.
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From: Michael Albinus <michael.albinus@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Subject: 27.0.91; Moving point fails sometimes in shell-command
Date: Mon, 27 Apr 2020 10:28:03 +0200
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Hi,
`shell-command' shall move the point after the output of the command,
unless indicated otherwise by `shell-command-dont-erase-buffer'. This
works almost, but not always. I have extracted three test cases which fail.
--8<---------------cut here---------------start------------->8---
;; Erase if buffer is the current one, but
;; `shell-command-dont-erase-buffer' is set to `erase'.
;; Move point to `point-max'.
(let ((default-directory temporary-file-directory)
(shell-command-dont-erase-buffer 'erase))
(with-temp-buffer
(insert "bar")
(cl-assert (string-equal "bar" (buffer-string)))
(cl-assert (= (point) (point-max)))
(shell-command "echo baz" (current-buffer))
(cl-assert (string-equal "baz\n" (buffer-string)))
;; Point is not moved after the inserted text.
(cl-assert (= (point) (point-max)) 'show-args)))
;; Don't erase if the buffer is the current one and
;; `shell-command-dont-erase-buffer' is set to `end-last-out'.
;; Move point to `point-max'.
(let ((default-directory temporary-file-directory)
(shell-command-dont-erase-buffer 'end-last-out))
(with-temp-buffer
(insert "bar")
(cl-assert (string-equal "bar" (buffer-string)))
(cl-assert (= (point) (point-max)))
(shell-command "echo baz" (current-buffer))
(cl-assert (string-equal "barbaz\n" (buffer-string)))
;; Point is not moved after the inserted text.
(cl-assert (= (point) (point-max)) 'show-args)))
;; Don't erase if the buffer is the current one and
;; `shell-command-dont-erase-buffer' is set to a random value.
;; Move point to `point-max'.
(let ((default-directory temporary-file-directory)
(shell-command-dont-erase-buffer 'random))
(with-temp-buffer
(insert "bar")
(cl-assert (string-equal "bar" (buffer-string)))
(cl-assert (= (point) (point-max)))
(shell-command "echo baz" (current-buffer))
(cl-assert (string-equal "barbaz\n" (buffer-string)))
;; Point is not moved after the inserted text.
(cl-assert (= (point) (point-max)) 'show-args)))
--8<---------------cut here---------------end--------------->8---
If it is undecided where point will be in the first and third case, this
shall be documented at least.
Best regards, Michael.
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/home/albinus/src/tramp/lisp/tramp-cache hides /home/albinus/.emacs.d/elpa/tramp-2.4.3.3/tramp-cache
/home/albinus/src/tramp/lisp/tramp-sudoedit hides /home/albinus/.emacs.d/elpa/tramp-2.4.3.3/tramp-sudoedit
/home/albinus/src/tramp/lisp/tramp-loaddefs hides /home/albinus/.emacs.d/elpa/tramp-2.4.3.3/tramp-loaddefs
/home/albinus/src/elpa/packages/tramp-theme/tramp-theme-autoloads hides /home/albinus/.emacs.d/elpa/tramp-theme-0.2/tramp-theme-autoloads
/home/albinus/src/elpa/packages/tramp-theme/tramp-theme hides /home/albinus/.emacs.d/elpa/tramp-theme-0.2/tramp-theme
/home/albinus/src/elpa/packages/tramp-theme/tramp-theme-pkg hides /home/albinus/.emacs.d/elpa/tramp-theme-0.2/tramp-theme-pkg
/home/albinus/src/tramp/lisp/tramp-sh hides /home/albinus/src/emacs-27/lisp/net/tramp-sh
/home/albinus/src/tramp/lisp/tramp-cmds hides /home/albinus/src/emacs-27/lisp/net/tramp-cmds
/home/albinus/src/tramp/lisp/tramp-gvfs hides /home/albinus/src/emacs-27/lisp/net/tramp-gvfs
/home/albinus/src/tramp/lisp/tramp-ftp hides /home/albinus/src/emacs-27/lisp/net/tramp-ftp
/home/albinus/src/tramp/lisp/tramp-adb hides /home/albinus/src/emacs-27/lisp/net/tramp-adb
/home/albinus/src/tramp/lisp/tramp hides /home/albinus/src/emacs-27/lisp/net/tramp
/home/albinus/src/tramp/lisp/tramp-cache hides /home/albinus/src/emacs-27/lisp/net/tramp-cache
/home/albinus/src/tramp/lisp/tramp-rclone hides /home/albinus/src/emacs-27/lisp/net/tramp-rclone
/home/albinus/src/tramp/lisp/tramp-compat hides /home/albinus/src/emacs-27/lisp/net/tramp-compat
/home/albinus/src/tramp/lisp/tramp-integration hides /home/albinus/src/emacs-27/lisp/net/tramp-integration
/home/albinus/src/tramp/lisp/tramp-archive hides /home/albinus/src/emacs-27/lisp/net/tramp-archive
~/lisp/dbus hides /home/albinus/src/emacs-27/lisp/net/dbus
/home/albinus/src/tramp/lisp/tramp-sudoedit hides /home/albinus/src/emacs-27/lisp/net/tramp-sudoedit
/home/albinus/src/tramp/lisp/tramp-loaddefs hides /home/albinus/src/emacs-27/lisp/net/tramp-loaddefs
/home/albinus/src/tramp/lisp/tramp-uu hides /home/albinus/src/emacs-27/lisp/net/tramp-uu
/home/albinus/src/tramp/lisp/tramp-smb hides /home/albinus/src/emacs-27/lisp/net/tramp-smb
/home/albinus/src/tramp/lisp/trampver hides /home/albinus/src/emacs-27/lisp/net/trampver
Features:
(shadow sort mail-extr warnings emacsbug pop3 utf-7 nndraft nnmh nnml
gnutls network-stream nsm gnus-agent gnus-srvr gnus-score score-mode
nnvirtual gnus-msg gnus-art mm-uu mml2015 mm-view mml-smime smime dig
gnus-cache gnus-sum url url-proxy url-privacy url-expand url-methods
url-history mailcap shr url-cookie url-domsuf url-util svg dom nnnil
smtpmail sendmail gnus-demon nntp gnus-group gnus-undo gnus-start
gnus-cloud nnimap nnmail mail-source utf7 netrc nnoo gnus-spec gnus-int
gnus-range message rmc puny rfc822 mml mml-sec epa derived epg
epg-config mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader gnus-win gnus nnheader gnus-util rmail
rmail-loaddefs rfc2047 rfc2045 ietf-drums text-property-search
mail-utils mm-util mail-prsvr wid-edit eieio-opt cl-extra speedbar
sb-image ezimage dframe help-fns radix-tree cl-print debug backtrace
help-mode find-func vc vc-dispatcher erc-notify erc-networks
erc-desktop-notifications erc-match notifications dbus xml erc-goodies
erc erc-backend erc-compat thingatpt pp erc-loaddefs cperl-mode time
tramp-sh vagrant-tramp dash term disp-table ehelp tramp tramp-loaddefs
trampver tramp-integration files-x tramp-compat shell pcomplete comint
ansi-color ring parse-time iso8601 time-date ls-lisp format-spec delsel
ido jka-compr icomplete paren dired dired-loaddefs info package easymenu
browse-url url-handlers url-parse auth-source cl-seq eieio eieio-core
cl-macs eieio-loaddefs password-cache json subr-x map url-vars seq
byte-opt gv bytecomp byte-compile cconv cl-loaddefs cl-lib tooltip eldoc
electric uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win
x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list replace newcomment text-mode elisp-mode lisp-mode
prog-mode register page tab-bar menu-bar rfn-eshadow isearch timer
select scroll-bar mouse jit-lock font-lock syntax facemenu font-core
term/tty-colors frame minibuffer cl-generic cham georgian utf-8-lang
misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms
cp51932 hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese composite charscript charprop case-table epa-hook
jka-cmpr-hook help simple abbrev obarray cl-preloaded nadvice loaddefs
button faces cus-face macroexp files text-properties overlay sha1 md5
base64 format env code-pages mule custom widget hashtable-print-readable
backquote threads dbusbind inotify lcms2 dynamic-setting
system-font-setting font-render-setting move-toolbar gtk x-toolkit x
multi-tty make-network-process emacs)
Memory information:
((conses 16 212745 10654)
(symbols 48 21733 1)
(strings 32 66828 3046)
(string-bytes 1 2267312)
(vectors 16 31843)
(vector-slots 8 397198 17284)
(floats 8 253 37)
(intervals 56 2268 0)
(buffers 1000 24))
Michael Albinus <michael.albinus@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#40896; Package emacs.
Full text available.
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997 nCipher Corporation Ltd,
1994-97 Ian Jackson.