topic.h

/*
* Copyright (c) 2012, Toby Jaffey <toby@sensemote.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef TOPIC_H
#define TOPIC_H 1

typedef enum
{
    TOPIC_NODE_TYPE_STR,
    TOPIC_NODE_TYPE_PLUS,
    TOPIC_NODE_TYPE_HASH
} topic_node_type_t;

struct topic_node
{
    topic_node_type_t type;
    char *str;
    struct topic_node *next;
};
typedef struct topic_node topic_node_t;


extern topic_node_t *topic_create(void);
extern void topic_destroy(topic_node_t *tn);
extern void topic_print(topic_node_t *root);
extern bool topic_match_string(topic_node_t *rule, const char *topicstr);
extern topic_node_t *topic_create_from_string(const char *topicstr);

#endif