On 16.04.2011 02:06, Pascal J. Bourguignon wrote:
> The props data protocol ls command has a problem: there's no way to
> determine that its output is complete (unless we use a timer, which
> would mean that all ls commands would suspend the client for the time out
> duration).
>
> I'm proposing to add a lsx command, similar to ls, but that will
> terminate its output with an empty line.
Hi Pascal,
before we duplicate commands: couldn't you detect output completion by
reading until the prompt? When output is complete, the server prints a
linefeed ("\n") and a "/" (followed by an optional property path and
">"). Should be easy to parse.
Ok, the prompt is only printed in PROMPT mode (obviously). There is no
prompt in RAW mode. But then it might be better to add another output
mode, i.e. a mode similar to RAW which completes _every_ existing
command with a specific character sequence, such as an additional
linefeed. Adding another command ("lsx") wouldn't cost much - but then
we should also add new versions of all other commands ("getx", "dumpx",
"runx", ...) for the same reason.
So, a different output mode seems a better solution? Or also possible:
just add a new option to configure the prompt in PROMPT mode. So
everyone can configure this to his needs.
To see what I mean, try
export PS1="FOO\nBAR\n"
in your linux console - or
set prompt="#FOOBAR#"
in your Win-DOS box.
Might be a better solution if you added something similar to props.cxx.
Any other thoughts?
cheers,
Thorsten
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