all node type are defined

2026-02-02 18:11:46 +08:00
parent 73b222bbc6
commit fe0e4ad7a4
9 changed files with 405 additions and 130 deletions
@@ -0,0 +1,95 @@
+//-----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+// file="Node.Branch"
+// Project: StgSharp
+// AuthorGroup: Nitload
+// Copyright (c) Nitload. All rights reserved.
+//     
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//     
+// -----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+using StgSharp.MVVM;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.Contracts;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+namespace StgSharp.RegularAnalysis
+{
+    internal  class RegularBranchNode : RegularStateNode
+    {
+
+        private int _lastBranch;
+
+        private List<BranchMeasureResult> _result;
+
+        public override NodeType Type => NodeType.BRANCH;
+
+        public override bool IsValidateFrom(
+                             RegularStateNode former,
+                             RegularContext context
+        )
+        {
+            return true;
+        }
+
+        public override bool TryTransaction(
+                             ReadOnlySpan<RegularStateNode> nodeSpan,
+                             RegularContext context,
+                             out int label
+        )
+        {
+            int pos = context.LastBranch.Peek();
+            if (AvailableNodes.Length > _lastBranch)
+            {
+                // return measure result
+                label = 0;
+                return true;
+            }
+            label = FailNodeIndex;
+            return false;
+        }
+
+    }
+
+    internal struct BranchMeasureResult
+    {
+
+        internal BranchMeasureResult(
+                 bool match,
+                 int size
+        )
+        {
+            IsMatch = match;
+
+            Length = size;
+        }
+
+        public bool IsMatch { get; init; }
+
+        public static BranchMeasureResult Fail { get; } = new BranchMeasureResult();
+
+        public int Length { get; init; }
+
+    }
+}