GNU bug report logs - #40576
call-process-region does not accept nil as first argument

Previous Next

Full log

View this message in rfc822 format

From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Philipp Stephani <p.stephani2 <at> gmail.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#40576: closed (call-process-region does not accept nil as
 first argument)
Date: Sun, 12 Apr 2020 17:08:02 +0000

[Message part 1 (text/plain, inline)]

Your message dated Sun, 12 Apr 2020 19:07:03 +0200
with message-id <CAArVCkTVb5ZmmOpTjDr+wQJGfehqJm+DymgnmeXHbux-qe6veQ <at> mail.gmail.com>
and subject line Re: bug#40576: call-process-region does not accept nil as first argument
has caused the debbugs.gnu.org bug report #40576,
regarding call-process-region does not accept nil as first argument
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
40576: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=40576
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Pietro Giorgianni <giorgian <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: call-process-region does not accept nil as first argument
Date: Sun, 12 Apr 2020 16:25:33 +0200

[Message part 3 (text/plain, inline)]

Hi,

According to the documentation of call-process-region,
  If START is nil, that means to use the entire buffer contents; END is
ignored.

But when I run:
(call-process-region nil nil "/bin/cat" t (current-buffer))
I get:
Debugger entered--Lisp error: (wrong-type-argument integer-or-marker-p nil)
  call-process-region(nil nil "/bin/cat" t #<buffer *scratch*>)
  eval((call-process-region nil nil "/bin/cat" t (current-buffer)) nil)
  elisp--eval-last-sexp(t)
  eval-last-sexp(t)
  eval-print-last-sexp(nil)
  funcall-interactively(eval-print-last-sexp nil)
  call-interactively(eval-print-last-sexp nil nil)
  command-execute(eval-print-last-sexp)

If, instead, I run:
(call-process-region (point-min) (point-max) "/bin/cat" t (current-buffer))

It works.

Am I interpreting the documentation wrong?

Emacs version:
GNU Emacs 26.3 (build 1, x86_64-apple-darwin18.2.0, NS appkit-1671.20
Version 10.14.3 (Build 18D109)) of 2019-09-02


Thank you

[Message part 4 (text/html, inline)]

[Message part 5 (message/rfc822, inline)]

From: Philipp Stephani <p.stephani2 <at> gmail.com>
To: Pietro Giorgianni <giorgian <at> gmail.com>
Cc: 40576-done <at> debbugs.gnu.org
Subject: Re: bug#40576: call-process-region does not accept nil as first
 argument
Date: Sun, 12 Apr 2020 19:07:03 +0200

Am So., 12. Apr. 2020 um 18:01 Uhr schrieb Philipp Stephani
<p.stephani2 <at> gmail.com>:
>
> Am So., 12. Apr. 2020 um 17:44 Uhr schrieb Pietro Giorgianni
> <giorgian <at> gmail.com>:
> >
> > Hi,
> >
> > According to the documentation of call-process-region,
> >   If START is nil, that means to use the entire buffer contents; END is
> > ignored.
> >
> > But when I run:
> > (call-process-region nil nil "/bin/cat" t (current-buffer))
> > I get:
> > Debugger entered--Lisp error: (wrong-type-argument integer-or-marker-p nil)
> >   call-process-region(nil nil "/bin/cat" t #<buffer *scratch*>)
> >   eval((call-process-region nil nil "/bin/cat" t (current-buffer)) nil)
> >   elisp--eval-last-sexp(t)
> >   eval-last-sexp(t)
> >   eval-print-last-sexp(nil)
> >   funcall-interactively(eval-print-last-sexp nil)
> >   call-interactively(eval-print-last-sexp nil nil)
> >   command-execute(eval-print-last-sexp)
> >
> > If, instead, I run:
> > (call-process-region (point-min) (point-max) "/bin/cat" t (current-buffer))
> >
> > It works.
> >
> > Am I interpreting the documentation wrong?
>
> Nope, looks like a genuine bug (that happens only if DELETE is non-nil).

I've now fixed this on master (commit 42306747d8).

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.