Clarification needed on signal spec EXIT

[Francis Moreau]

Hi,

Currently the description of the builtin trap isn't enough regarding
the description of the EXIT signal spec, IMHO.

It says: "If a SIGNAL_SPEC is EXIT (0) ARG is executed on exit from
the shell.", and nothing more, unless I'm missing some other points
about it somewhere else (that would be unfortunate too).

Specifically, the documentation should specify exactly what "exit from
the shell" means: for example killing a shell process makes it exit
somehow. Is this is supposed to be handled by EXIT signal spec ?

Another thing that should be clarified is what's happening in the
context of a subshell ?

Thanks
-- 
Francis