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From: Philipp Stephani
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Subject: bug#40576: call-process-region does not accept nil as first argument
Date: Sun, 12 Apr 2020 19:07:03 +0200
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To: Pietro Giorgianni
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Am So., 12. Apr. 2020 um 18:01 Uhr schrieb Philipp Stephani
:
>
> Am So., 12. Apr. 2020 um 17:44 Uhr schrieb Pietro Giorgianni
> :
> >
> > 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 #)
> > 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).