1 files changed, 20 insertions, 0 deletions
diff --git a/index.h b/index.h
new file mode 100644
index 0000000..af0ba68
--- /dev/null
+++ b/index.h
@@ -0,0 +1,20 @@
+#ifndef INDEX_H
+#define INDEX_H
+
+#include <stdint.h>
+
+typedef struct index index;
+
+struct index {
+	uint8_t type;		/* Index type. (0 = Named index, 1 = Numbered index) */
+	union {
+		char *name;	/* Named index. */
+		uint64_t num;	/* Numbered index. */
+	};
+	index *next;		/* Next index. */
+};
+
+extern int is_valid_index(index *idx);
+extern char *make_index_path(const char *root, index *idx, int path_type);
+
+#endif