yang parser CHANGE improve readability
hide module's substatements order check into a local macro
diff --git a/src/tree_schema_internal.h b/src/tree_schema_internal.h
index dda9593..df5823f 100644
--- a/src/tree_schema_internal.h
+++ b/src/tree_schema_internal.h
@@ -16,6 +16,27 @@
#define LY_TREE_SCHEMA_INTERNAL_H_
/**
+ * @brief List of YANG statement groups - the (sub)module's substatements
+ */
+enum yang_module_stmt {
+ Y_MOD_MODULE_HEADER,
+ Y_MOD_LINKAGE,
+ Y_MOD_META,
+ Y_MOD_REVISION,
+ Y_MOD_BODY
+};
+
+/**
+ * @brief Types of arguments of YANG statements
+ */
+enum yang_arg {
+ Y_IDENTIF_ARG, /**< YANG "identifier-arg-str" rule */
+ Y_PREF_IDENTIF_ARG, /**< YANG "identifier-ref-arg-str" rule */
+ Y_STR_ARG, /**< YANG "string" rule */
+ Y_MAYBE_STR_ARG /**< optional YANG "string" rule */
+};
+
+/**
* @brief internal context for schema parsers
*/
struct ly_parser_ctx {