$('input.words_input__input_field').on("keyup", function(e) {
     if (e.keyCode == 13) {
         send_message();
     }
    var re = /^(((['-+s]s*[a-zA-Z])?[a-zA-Z]*)){3}$/g;
    var str = $('input.words_input__input_field').val();
    var m;
    while ((m = re.exec(str)) !== null) {
        if (m.index === re.lastIndex) {
            re.lastIndex++;
        }
        send_text = str;
        // View your result using the m-variable.
        // eg m[0] etc.
    }
    console.log(m);
    });