Add a function or variable to get current mode

[ejrichards]

What new feature should Elvish have?

I'd like to have a function to get the current edit: mode, as far as I can tell this doesn't exist right now. My use case is that I like to run ls automatically after changing directories, but would like to conditionally not run it to avoid issues in location / navigation mode. Using edit:notify as recommended in the docs is a bit restricting, eg. it limits the output (seems to remove unicode icons) (this was eza being piped).

set builtin:after-chdir = [$@builtin:after-chdir {|_| eza }]

Output of "elvish -version"

0.21.0+official

Code of Conduct

• I agree to follow Elvish's Code of Conduct.

[ejrichards]

Some more thoughts: I went back to this and it looks like the issue was ANSI color escape codes. Maybe a better solution to the problem would be allowing edit:notify to take byte input as well?