From 3108dfca1ed312f744a3fdc7b221a00d4541e16b Mon Sep 17 00:00:00 2001
From: Olof hagsand <olof@hagsand.se>
Date: Sat, 21 Sep 2024 11:04:03 +0200
Subject: [PATCH] Fixed: [Clixon fails to load yang with
 extension](https://github.com/clicon/clixon/issues/554)

---
 CHANGELOG.md                | 1 +
 lib/src/clixon_yang_parse.y | 1 +
 test/test_yang_extension.sh | 4 +++-
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ce0fc239..c7e7537b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -62,6 +62,7 @@ Developers may need to change their code
 
 ### Corrected Busg
 
+* Fixed: [Clixon fails to load yang with extension](https://github.com/clicon/clixon/issues/554)
 * Fixed: Double top-levels in xmldb_get that could occur with xpath containing choice.
 * Fixed: [RESTCONF exit on cert error + complex accept](https://github.com/clicon/clixon/issues/551)
 * Fixed: [Deletion of leaf in YANG choice removes leaf in a different choice/case](https://github.com/clicon/clixon/issues/542)
diff --git a/lib/src/clixon_yang_parse.y b/lib/src/clixon_yang_parse.y
index 931fec07..6f9ee608 100644
--- a/lib/src/clixon_yang_parse.y
+++ b/lib/src/clixon_yang_parse.y
@@ -624,6 +624,7 @@ argument_substmts : argument_substmts argument_substmt
 
 argument_substmt : yin_element_stmt1 { _PARSE_DEBUG("argument-substmt -> yin-element-stmt1");}
                  | unknown_stmt   { _PARSE_DEBUG("argument-substmt -> unknown-stmt");}
+                 |
                  ;
 
 
diff --git a/test/test_yang_extension.sh b/test/test_yang_extension.sh
index 2d09b6a8..2c780cb3 100755
--- a/test/test_yang_extension.sh
+++ b/test/test_yang_extension.sh
@@ -81,10 +81,12 @@ module $APPNAME{
    ex:e4 arg1{
       uses bar;
    }
-   
    extension posix-pattern {
       argument "pattern";
    }
+   extension extra {
+      argument "pattern"{} /* See https://github.com/clicon/clixon/issues/554 */
+   }
    typedef dotted-quad {
       description "Only present for complex parsing of unknown-stmt";
       type string {