src/lib-fts/fts-tokenizer-private.h

#ifndef FTS_TOKENIZER_PRIVATE_H
#define FTS_TOKENIZER_PRIVATE_H

#include "fts-tokenizer.h"

#define FTS_TOKENIZER_CLASSES_NR 2

struct fts_tokenizer_vfuncs {
    int (*create)(const char *const *settings,
              struct fts_tokenizer **tokenizer_r, const char **error_r);
    void (*destroy)(struct fts_tokenizer *tok);

    void (*reset)(struct fts_tokenizer *tok);
    int (*next)(struct fts_tokenizer *tok, const unsigned char *data,
            size_t size, size_t *skip_r, const char **token_r,
            const char **error_r);
};

enum fts_tokenizer_parent_state {
    FTS_TOKENIZER_PARENT_STATE_ADD_DATA = 0,
    FTS_TOKENIZER_PARENT_STATE_NEXT_OUTPUT,
    FTS_TOKENIZER_PARENT_STATE_FINALIZE
};

struct fts_tokenizer {
    const char *name;
    const struct fts_tokenizer_vfuncs *v;
    int refcount;

    struct fts_tokenizer *parent;
    buffer_t *parent_input;
    enum fts_tokenizer_parent_state parent_state;

    const unsigned char *prev_data;
    size_t prev_size;
    size_t prev_skip;
    bool prev_reply_finished;
    bool skip_parents; /* Return token as is, do not hand to parents. */
};

void fts_tokenizer_register(const struct fts_tokenizer *tok_class);
void fts_tokenizer_unregister(const struct fts_tokenizer *tok_class);

#endif