enum cYAML_object_type {
        CYAML_TYPE_FALSE = 0,
        CYAML_TYPE_TRUE,
        CYAML_TYPE_NULL,
        CYAML_TYPE_NUMBER,
        CYAML_TYPE_STRING,
        CYAML_TYPE_ARRAY,
        CYAML_TYPE_OBJECT
};

struct cYAML {
        /* next/prev allow you to walk array/object chains. */
        struct cYAML *cy_next, *cy_prev;
        /* An array or object item will have a child pointer pointing
           to a chain of the items in the array/object. */
        struct cYAML *cy_child;
        /* The type of the item, as above. */
        enum cYAML_object_type cy_type;

        /* The item's string, if type==CYAML_TYPE_STRING */
        char *cy_valuestring;
        /* The item's number, if type==CYAML_TYPE_NUMBER */
        int cy_valueint;
        /* The item's number, if type==CYAML_TYPE_NUMBER */
        double cy_valuedouble;
        /* The item's name string, if this item is the child of,
           or is in the list of subitems of an object. */
        char *cy_string;
        /* user data which might need to be tracked per object */
        void *cy_user_data;
};