-static int ldif_export_database(FILE *out);
-static int html_export_database(FILE *out);
-static int pine_export_database(FILE *out);
-static int csv_export_database(FILE *out);
-static int gcrd_export_database(FILE *out);
-static int mutt_alias_export(FILE *out);
-static int elm_alias_export(FILE *out);
-static int text_export_database(FILE *out);
-static int spruce_export_database(FILE *out);
+/*
+ * export filter prototypes
+ */
+
+static int ldif_export_database(FILE *out, struct db_enumerator e);
+static int html_export_database(FILE *out, struct db_enumerator e);
+static int pine_export_database(FILE *out, struct db_enumerator e);
+static int csv_export_database(FILE *out, struct db_enumerator e);
+static int gcrd_export_database(FILE *out, struct db_enumerator e);
+static int mutt_alias_export(FILE *out, struct db_enumerator e);
+static int elm_alias_export(FILE *out, struct db_enumerator e);
+static int text_export_database(FILE *out, struct db_enumerator e);
+static int spruce_export_database(FILE *out, struct db_enumerator e);