From 0c3d0c0bfaa459b40ccc3b49d5d8882e25718c62 Mon Sep 17 00:00:00 2001
From: Shahram Najm <masn@ecmwf.int>
Date: Thu, 29 Jun 2023 10:03:02 +0000
Subject: [PATCH] GRIB2: Handle from partial message. Try 01

---
 definitions/grib2/sections.def | 42 +++++++++++++++++++---------------
 1 file changed, 23 insertions(+), 19 deletions(-)

diff --git a/definitions/grib2/sections.def b/definitions/grib2/sections.def
index 0da884a39..ed998ca61 100644
--- a/definitions/grib2/sections.def
+++ b/definitions/grib2/sections.def
@@ -1,5 +1,7 @@
 # (C) Copyright 2005- ECMWF.
 
+meta headersOnly headers_only();
+
 lookup[1] sectionNumber(4) ;
 
 if(sectionNumber == 1 or new() ){
@@ -42,23 +44,25 @@ meta md5Headers md5(startOfHeaders,lengthOfHeaders);
 
 lookup[1] sectionNumber(4) ;
 
-if (sectionNumber == 5 or new() ) {
-  position sectionPosition;
-  template section_5 "grib2/section.5.def";
+if (!headersOnly) {
+  if (sectionNumber == 5 or new() ) {
+    position sectionPosition;
+    template section_5 "grib2/section.5.def";
+  }
+
+  lookup[1] sectionNumber(4) ;
+
+  if (sectionNumber == 6 or new() ) {
+    position sectionPosition;
+    template section_6 "grib2/section.6.def";
+  }
+
+  lookup[1] sectionNumber(4) ;
+
+  if (sectionNumber == 7 or new() ) {
+    position sectionPosition;
+    template section_7 "grib2/section.7.def";
+  }
+
+  #template metas "grib2/meta.def";
 }
-
-lookup[1] sectionNumber(4) ;
-
-if (sectionNumber == 6 or new() ) {
-  position sectionPosition;
-  template section_6 "grib2/section.6.def";
-}
-
-lookup[1] sectionNumber(4) ;
-
-if (sectionNumber == 7 or new() ) {
-  position sectionPosition;
-  template section_7 "grib2/section.7.def";
-}
-
-#template metas "grib2/meta.def";