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Re: Invoking as 'ed - filename' broken in ed-0.3-pre[12]

From: Paul Eggert
Subject: Re: Invoking as 'ed - filename' broken in ed-0.3-pre[12]
Date: Fri, 20 Oct 2006 22:43:19 -0700
User-agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.4 (gnu/linux)

>> So please revert that change.  POSIX explicitly permits the
>> traditional behavior, and I don't see why GNU 'ed' should depart from it.
> POSIX permits the use of `-' as a filename,

Sure, but that does not contradict my statement.  POSIX allows 'ed -'
to generate whatever output it likes.  "ed -" could output a copy of
the Rime of the Ancient Mariner, say.  But that's not enough
justification to change from behavior that has been common practice
for 30 years, especially when such a change breaks widely used and
stable applications that themselves have been common use for over 20 years.

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