Check existence of tmux supported terminfo entries in ncurses' terminfo

output.txt

bad bce
  xterm ok
bad E3
  xterm ok
bad ech
  xterm ok
bad hpa
  xterm ok
bad ich1
bad indn
  xterm ok
bad invis
  xterm ok
bad setrgbb
bad setrgbf
bad Tc
bad vpa
  xterm ok
bad XT
  xterm ok

tmux-extract-check.sh

# extract tmux supported terminfo entries to list
awk '/TTYCODE_[A-Z0-9]*, / { gsub("\"", ""); print $5 }' tty-term.c > list

# check missing tmux-256color terminfo entries
while read code _; do
    if ! tput -T tmux-256color $code >& /dev/null; then
        echo "bad $code"
        if tput -T xterm-256color $code >& /dev/null; then
            echo "  xterm ok"
        fi
    fi
    : echo "ok  $code"
done < list