maint: added livewatch asset

Assets/Plugins/LiveWatchLite/Scripts/WatchVariable/EditorMeta/SearchQueryResult.cs

@@ -0,0 +1,95 @@
+using System;
+using UnityEngine;
+
+namespace Ingvar.LiveWatch
+{
+    [Serializable]
+    public struct SearchQueryResult
+    {
+        public bool IsPositive;
+        public bool IsWholeSelection;
+        public int SelectionStartIndex;
+        public int SelectionEndIndex;
+        public int IndexOfResultInTotalList;
+
+        public static SearchQueryResult True() => new ()
+            { IsPositive = true, IsWholeSelection = true};
+        public static SearchQueryResult True(int selectionStart, int selectionEnd) => new ()
+            { IsPositive = true, SelectionStartIndex = selectionStart, SelectionEndIndex = selectionEnd};
+        public static SearchQueryResult False() => new ()
+            { IsPositive = false };
+
+        public static SearchQueryResult And(SearchQueryResult left, SearchQueryResult right)
+        {
+            if (!left.IsPositive || !right.IsPositive)
+            {
+                return SearchQueryResult.False();
+            }
+
+            if (left.IsWholeSelection && right.IsWholeSelection)
+            {
+                return SearchQueryResult.True();
+            } 
+            
+            if (!left.IsWholeSelection && right.IsWholeSelection)
+            {
+                return left;
+            }
+            
+            if (left.IsWholeSelection && !right.IsWholeSelection)
+            {
+                return right;
+            }
+            
+            if (!left.IsWholeSelection && !right.IsWholeSelection)
+            {
+                var greater = right.SelectionEndIndex >= left.SelectionEndIndex ? right : left;
+                var lesser = greater.Equals(right) ? left : right;
+
+                if (lesser.SelectionEndIndex < greater.SelectionStartIndex)
+                {
+                    return SearchQueryResult.False();
+                }
+                else
+                {
+                    return SearchQueryResult.True(lesser.SelectionEndIndex, greater.SelectionEndIndex);
+                }
+            }
+
+            return SearchQueryResult.False();
+        }
+
+        public static SearchQueryResult Or(SearchQueryResult left, SearchQueryResult right)
+        {
+            if (!left.IsPositive && !right.IsPositive)
+            {
+                return SearchQueryResult.False();
+            }
+            
+            if (left.IsWholeSelection || right.IsWholeSelection)
+            {
+                return SearchQueryResult.True();
+            }
+
+            if (left.IsPositive && !right.IsPositive)
+            {
+                return left;
+            }
+            
+            if (!left.IsPositive && right.IsPositive)
+            {
+                return right;
+            }
+            
+            var startIndex = Mathf.Min(left.SelectionStartIndex, right.SelectionStartIndex);
+            var endIndex = Mathf.Min(left.SelectionEndIndex, right.SelectionEndIndex);
+
+            return SearchQueryResult.True(startIndex, endIndex);
+        }
+
+        public static SearchQueryResult Inverse(SearchQueryResult result)
+        {
+            return result.IsPositive ? SearchQueryResult.False() : SearchQueryResult.True();
+        }
+    }
+}