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reworded manpage of --exit

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Dima Kogan 2017-03-19 19:50:45 -07:00
parent 5740e55a6f
commit 7c1f02ec7f
1 changed files with 15 additions and 16 deletions
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@ -1847,16 +1847,15 @@ is possible to send the output produced this way to gnuplot directly.
C<--exit>
This controls the details of what happens when the input data is exhausted, or
when some part of the C<feedgnuplot> pipeline is killed. This option does
different things depending on whether C<--stream> is active, so read this
closely.
This controls what happens when the input data is exhausted, or when some part
of the C<feedgnuplot> pipeline is killed. This option does different things
depending on whether C<--stream> is active, so read this closely.
With interactive gnuplot terminals (qt, x11, wxt), the plot windows live in a
separate process from the main C<gnuplot> process. It is thus possible for the
main C<gnuplot> process to exit, while leaving the plot windows up (a caveat is
that such decapitated windows aren't interactive). To be clear, there are 3
possible states:
that such decapitated windows aren't interactive). There are 3 possible states
of the polotting pipeline:
=over
@ -1871,35 +1870,35 @@ prompt available
=back
The C<--exit> option controls the details of this behavior. The possibilities
are:
The possibilities are:
=over
=item No C<--stream>, input pipe is exhausted (all data read in)
=item No C<--stream>, all data read in
=over
=item default; no C<--exit>
=item no C<--exit> (default)
Alive. Need to Ctrl-C to get back into the shell
=item C<--exit>
Half-alive. Non-interactive prompt up, and the shell accepts new commands.
Without C<--stream> the goal is to show a plot, so a Dead state is not useful
here.
Without C<--stream> the goal is to show a plot, so a Dead state would not be
useful.
=back
=item C<--stream>, input pipe is exhausted (all data read in) or the
C<feedgnuplot> process terminated
=item C<--stream>, all data read in or the C<feedgnuplot> process terminated
=over
=item default; no C<--exit>
=item no C<--exit> (default)
Alive. Need to Ctrl-C to get back into the shell
Alive. Need to Ctrl-C to get back into the shell. This means that when making
live plots, the first Ctrl-C kills the data feeding process, but leaves the
final plot up for inspection. A second Ctrl-C kills feedgnuplot as well.
=item C<--exit>