From Newsgroup: gnu.emacs.help
I think this might be relevant as I get a lot of `|+'
when I type meta (ALT) in emacs on xterm running gnome on raspberry pi 32or 64 bit raspbian.
please see
https://forums.raspberrypi.com/viewtopic.php?t=279460
specifically alter ~/.Xresources by adding:
XTerm*eightBitInput: false
log out and log back in
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