## ETrie

ETrie — A trie data structure.

## Synopsis

                ETrie;
    ETrie*      e_trie_new                      (gboolean icase);
    void        e_trie_free                     (ETrie *trie);
    void        e_trie_add                      (ETrie *trie,
                                                 const char *pattern,
                                                 int pattern_id);
    const char* e_trie_search                   (ETrie *trie,
                                                 const char *buffer,
                                                 size_t buflen,
                                                 int *matched_id);

## Description

## Details

### ETrie

    typedef struct _ETrie ETrie;

A trie data structure.

### e_trie_new ()

    ETrie*      e_trie_new                      (gboolean icase);

Creates a new ETrie. If `icase` is `TRUE`, then pattern matching done by the ETrie will be case insensitive.

`icase` : | Case sensitivity for the ETrie.
Returns : | The newly-created ETrie.

### e_trie_free ()

    void        e_trie_free                     (ETrie *trie);

Frees the memory associated with the ETrie `trie`.

`trie` : | The ETrie to free.

### e_trie_add ()

    void        e_trie_add                      (ETrie *trie,
                                                 const char *pattern,
                                                 int pattern_id);

Add a new pattern to the ETrie `trie`.

`trie` : | The ETrie to add a pattern to.
`pattern` : | The pattern to add.
`pattern_id` : | The id to use for the pattern.

### e_trie_search ()

    const char* e_trie_search                   (ETrie *trie,
                                                 const char *buffer,
                                                 size_t buflen,
                                                 int *matched_id);

Try to match the string `buffer` with a pattern in `trie`.

`trie` : | The ETrie to search in.
`buffer` : | The string to match against a pattern in `trie`.
`buflen` : | The length of `buffer`.
`matched_id` : | An integer address to store the matched pattern id in.
Returns : | The matched pattern, or `NULL` if no pattern is matched.