This may be a more complete example… What I didn’t understand was:
/terminal/cuu
The following code will “redraw” a spreadsheet-like grid of random strings (that look like hex). It use “/terminal/inkey timeout=1s” in a loop (instead of “while(true)”…“delay 1s”), this allows the “press any key to exit” part. But could be leveraged to make it a real “event loop” and redraw new data from other commands. Using an array to store the grid be a better approach. But wanted to show how the /terminal operators without someone having to know ROS array sytanx.
Here is GIF of it working:
do {
:local RED do={/terminal style error}
:local BLUE do={/terminal style ambiguous}
:local WHITE do={/terminal style "syntax-old"}
:local blue do={/terminal style escaped}
:local cyan do={/terminal style "varname-local"}
:local red do={/terminal style varname}
:local plain do={/terminal style "syntax-val" }
:local yellow do={/terminal style "syntax-meta"}
:local strong do={/terminal style "syntax-noterm"}
:local nostyle do={/terminal style "none"}
:local rndhex do={ :return [:rndstr length=6 from=abcdef0123456789] }
{ :put {" Press "};
$nostyle; /terminal/cuu; :put "\t key to exit (or use Ctrl-C)";
$RED; /terminal/cuu; :put "\tany";
}
:local keypress 65535;
while (keypress=65535) do={
:local Nrows (9);
for i from=1 to=$Nrows do={:put ""}
for i from=1 to=$Nrows do={/terminal cuu}
for i from=1 to=$Nrows do={$RED; :put " A$i "}
for i from=1 to=$Nrows do={/terminal cuu}
for i from=1 to=$Nrows do={$cyan; :put "\t $([$rndhex])"}
for i from=1 to=$Nrows do={/terminal cuu}
for i from=1 to=$Nrows do={$blue; :put "\t\t $([$rndhex])"}
for i from=1 to=$Nrows do={/terminal cuu}
for i from=1 to=$Nrows do={$yellow; :put "\t\t\t $([$rndhex])"}
for i from=1 to=$Nrows do={/terminal cuu}
for i from=1 to=$Nrows do={$WHITE; :put "\t\t\t\t E$i "}
for i from=1 to=$Nrows do={/terminal cuu}
:set keypress [/terminal inkey timeout=1s]
}
}