1 files changed, 52 insertions, 0 deletions
diff --git a/userdiff.h b/userdiff.h
new file mode 100644
index 0000000..d726804
--- /dev/null
+++ b/userdiff.h
@@ -0,0 +1,52 @@
+#ifndef USERDIFF_H
+#define USERDIFF_H
+
+#include "notes-cache.h"
+
+struct index_state;
+struct repository;
+
+struct userdiff_funcname {
+	const char *pattern;
+	int cflags;
+};
+
+struct userdiff_driver {
+	const char *name;
+	const char *external;
+	const char *algorithm;
+	int binary;
+	struct userdiff_funcname funcname;
+	const char *word_regex;
+	const char *word_regex_multi_byte;
+	const char *textconv;
+	struct notes_cache *textconv_cache;
+	int textconv_want_cache;
+};
+enum userdiff_driver_type {
+	USERDIFF_DRIVER_TYPE_BUILTIN = 1<<0,
+	USERDIFF_DRIVER_TYPE_CUSTOM = 1<<1,
+};
+typedef int (*each_userdiff_driver_fn)(struct userdiff_driver *,
+				       enum userdiff_driver_type, void *);
+
+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 repository *r,
+					      struct userdiff_driver *driver);
+
+/*
+ * Iterate over all userdiff drivers. The userdiff_driver_type
+ * argument to each_userdiff_driver_fn indicates their type. Return
+ * non-zero to exit early from the loop.
+ */
+int for_each_userdiff_driver(each_userdiff_driver_fn, void *);
+
+#endif /* USERDIFF */