Start railwaycat's OSX emacs port from the shell

railwaycat-emacs-shell-functions.sh

alias e='/usr/local/bin/emacs'

is_arg_p() {
    [[ ${1} == $'-'* ]]
}

file_not_found_p() {
    [[ ! -f ${1} ]]
}

emacs() {
    emacs_args=()
    files=()
    for token; do
        if is_arg_p ${token}
        then
            emacs_args+=${token}
        else
            files+=${token}
            if file_not_found_p ${token}
            then
                touch "${token}"
            fi
        fi
    done

    if [[ ${#emacs_args[@]} -eq 0 ]]
    then
        open -a emacs ${files}
    else
        open -a emacs ${files} --args ${emacs_args}
    fi
}