#ifndef USERDIFF_H
#define USERDIFF_H

#include "notes-cache.h"

struct index_state;

struct userdiff_funcname {
        const char *pattern;
        int cflags;
};

struct userdiff_driver {
        const char *name;
        const char *external;
        int binary;
        struct userdiff_funcname funcname;
        const char *word_regex;
        const char *textconv;
        struct notes_cache *textconv_cache;
        int textconv_want_cache;
};

int userdiff_config(const char *k, const char *v);
struct userdiff_driver *userdiff_find_by_name(const char *name);
struct userdiff_driver *userdiff_find_by_path(struct index_state *istate,
                                              const char *path);

/*
 * Initialize any textconv-related fields in the driver and return it, or NULL
 * if it does not have textconv enabled at all.
 */
struct userdiff_driver *userdiff_get_textconv(struct userdiff_driver *driver);

#endif /* USERDIFF */