Incorrect comment detection inside Bash parameter expansion

[Joseph C. Sible]

The /* in fd=${fd/*\/} is considered to be the beginning of of a comment, when in fact it is not. This makes the rest of the script be seen and highlighted as a comment. Seen in the wild here: https://unix.stackexchange.com/a/429405/217726

clear_fds() {
for fd in $(compgen -G "/proc/$BASHPID/fd/*"); do
    fd=${fd/*\/}
        if [[ ! " $* " =~ " ${fd} " ]]; then
            case "$fd" in
                0|1|2|255)
                ;;
                *)
                    eval "exec $fd>&-"
                    ;;
            esac
        fi
done
}

[Joseph C. Sible]

Never mind, this was because the language wasn't getting passed correctly.