File: __fish_use_subcommand.fish

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function __fish_use_subcommand -d "Test if a non-switch argument has been given in the current commandline"
    set -l cmd (commandline -poc)
    set -e cmd[1]
    for i in $cmd
        switch $i
            case '-*'
                continue
        end
        return 1
    end
    return 0
end