Re: add additional subcommand for the "chan" tcl command?

On 17.06.24 16:11, Schelte wrote:

chan exists stdin

question: is this possible with an additional level?
proc chanexists {fd} {
     return [expr {$fd in [chan names]}]
}
namespace ensemble configure chan -map [dict replace \
   [namespace ensemble configure chan -map] exists ::chanexists]
#chan help
puts [chan exists stdin] ; # → OK
# problem: "ensemble" is an ensemble IN the "namespace" ensemble
# goal: namespace ensemble add ENSEMBLE NAME CMD
proc ::namespace_ensemble_add {ensb name cmd} {
   namespace ensemble configure $ensb -map [dict replace \
     [namespace ensemble configure $ensb -map] $name $cmd]
}
→ how I do this for a *two* level ensemble (ensemble in a ensemble) ?