bug in `more -c` when using . to repeat <enter>

Benno Schulenberg <[email protected]> Sun, 16 Mar 2025 16:45:42 +0100

Newsgroups	org.kernel.vger.util-linux
Message-ID	<[email protected]>

To reproduce, run `./more -c README`.  Type <enter> a few times,
and see that for each <enter> the screen scrolls one line to show
another line of the README.  (Except when there is a blank line:
then it scrolls two lines and shows two blank lines -- that is
probably a separate bug.)

Now type . instead, which should repeat the last command, in this
case <enter>.  See how the screen is cleared and just one line of
the README is shown.  Keep typing . and see that each time just
one line is displayed.  Typing . here behaves as if the user had
typed 1 <enter>, not just <enter>.

Bug was found while using `./page README` after `ln -s more page`.
But `./page` does not do the doubling of blank lines.

Versions: 2.37.2 and 2.41-rc2.


Benno

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