From 903e117a09160a4c3164e73f3e21df41a022da79 Mon Sep 17 00:00:00 2001
From: EGOKM <111112114+EGOKM@users.noreply.github.com>
Date: Thu, 4 Jan 2024 08:01:37 +0100
Subject: [PATCH 1/2] Update utils.ts

dimIndex now allows starting from zero
---
 src/utils.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/utils.ts b/src/utils.ts
index 8f19cb9..e567e49 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -85,9 +85,12 @@ export function parseDimIndex(spec: string, count: number): string[] {
         const start = parts[0];
         const end = parts[1];
 
-        if (!start || !end) {
+	    if ( start < 0 || end < 0 || end<start ) {
+	      throw new Error('dimIndex Element Range Spec invalid.');
+	    }
+/*        if (!start || !end) {
             return [];
-        }
+        }*/
 
         const numElements = end - start + 1;
         if (numElements < count) {

From ad732f0643d298b6c23270f8abd2aff0aacd33cd Mon Sep 17 00:00:00 2001
From: EGOKM <111112114+EGOKM@users.noreply.github.com>
Date: Thu, 4 Jan 2024 09:19:32 +0100
Subject: [PATCH 2/2] added Nikitas Hint

---
 src/utils.ts | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/utils.ts b/src/utils.ts
index e567e49..6bdfb79 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -85,13 +85,15 @@ export function parseDimIndex(spec: string, count: number): string[] {
         const start = parts[0];
         const end = parts[1];
 
-	    if ( start < 0 || end < 0 || end<start ) {
-	      throw new Error('dimIndex Element Range Spec invalid.');
-	    }
-/*        if (!start || !end) {
-            return [];
-        }*/
-
+	if (start === undefined || end === undefined) {
+    	  return [];
+	}
+	if ( start < 0 || end < 0 || end < start ) {
+	  throw new Error('dimIndex Element Range Spec invalid.');
+	}
+/*
+if (!start || !end) { return []; }
+*/
         const numElements = end - start + 1;
         if (numElements < count) {
             throw new Error('dimIndex Element has invalid specification.');