Thanks Matias! I've dropped the code into a gist if anyone is interested in using it. It's c++ but of course wouldn't take much to turn in a C with structs. and of course modify it in other ways to your own needs.
You simply call one of these methods.. void log(const char * source, const char * instance, const char * action, char * detail); void log(const char * source, const char * instance, const char * action, char * detail, int value); the second is simply a convenience to print a message with an integer. source, instance and action should be constant / non moving. if they do move the pointer compare (not string compare) will simply miss and it will go to a new line. if it runs out of lines it simply replaces the last time. total lines is defined by a constant as this affects the amount of memory it's going to consume. https://gist.github.com/slipperyseal/2903dea1c34b21476dab4e2aab963467 CC On Tue, 18 Aug 2020 at 09:50, Matias N. <mat...@imap.cc> wrote: > I really liked your telemetry app with colored output you shown on the > video. > > On Mon, Aug 17, 2020, at 20:47, Christian Catchpole wrote: > > something to consider with querying the terminal for capabilities / > > terminal size etc, is where there is no terminal actually connected at > the > > time. this would cause it to hang or require timeouts or other > > complications. but i guess querying might only occur after user input. > > Again, as long as its all optional, people can apply what they like. > > > > this is something i really love about NuttX. nice and lean baseline but > so > > much discoverable behind kconfig options. > > > > again, i'll put together a basic proposal for ANSI support in NSH and see > > what people think of the implementation. > > > > > > On Tue, 18 Aug 2020 at 05:06, Gregory Nutt <spudan...@gmail.com> wrote: > > > > > A basic terminfo/termcaps could be very trivial > > > > > > > A more general solution would be handy but what is there really in > the > > > > embedded world that doesn't support vt100? There more code there is, > the > > > > more interesting ways it can go wrong :-) > > > > > > I have sometimes used cat /dev/ttyS0 on the host as a terminal. > > > > > > I seen some simple Linux terminals that do not support VT-100. > > > > > > The NuttX cu terminal does not support VT-100 commands. > > > > > > There are several. > > > > > > > > > > > >
