Le dimanche 8 août 2021, 10:04:30 UTC Benno Schulenberg a écrit : > > $env -i nano > > command fail because TERM is unset > > I can work around an unset TERM. But what if TERM=="" or TERM=="nonsense"? > Checking whether TERM is a valid terminal name goes too far, in my opinion. > > Also, is the 'vt100' terminal description guaranteed to exist? I ask, > because 'dumb' and 'vt52' are not good enough for nano (ncurses) to work > properly, and 'ansi' leaves the cursor invisible on a VTE-based terminal.
I do not know but I think the only sensible way to behave is like vi under POSIX (https://pubs.opengroup.org/onlinepubs/9699919799/utilities/ex.html): TERM Determine the name of the terminal type. If this variable is unset or null, an unspecified default terminal type shall be used. The other way are broken. > > Benno
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