prefix replaces CONDITION

2026-07-06 18:19:32 +08:00
parent cd7a52bd60
commit b053567eb7
8 changed files with 1113 additions and 1105 deletions
@@ -0,0 +1,79 @@
+//-----------------------------------------------------------------------
+// -----------------------------------------------------------------------
+// file="RegexIR.Prefix"
+// 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 System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StgSharp.RegularAnalysis.Text
+{
+    internal enum RegexIRPrefixMask
+    {
+
+        Prev_Success = 1 << 0,
+        Prev_Fail = 1 << 1,
+        Always = 1 << 2,
+        ExeCondition = Prev_Fail | Prev_Success | Always,
+        Pop_Fail = 1 << 3,
+        Pop_Success = 1 << 4,
+        PopCondition = Pop_Success | Pop_Fail,
+        Observe_Line = 1 << 5,
+        Observe_Region = 1 << 6,
+        ObserveMethod = Observe_Line | Observe_Region
+
+    }
+
+    internal record struct RegexIRPrefix(
+                           int WorkingRegion,
+                           RegexIRPrefixMask Mask,
+                           int ObserveSource
+    )
+    {
+
+        public override string ToString()
+        {
+            return $"{WorkingRegion:D4}, {DisplayMask(Mask , RegexIRPrefixMask.ExeCondition):D1}, {DisplayMask(Mask , RegexIRPrefixMask.PopCondition):D1}, {DisplayMask(Mask ,RegexIRPrefixMask.ObserveMethod):D1}, {ObserveSource:D4}";
+        }
+
+        private int DisplayMask(
+                    RegexIRPrefixMask mask,
+                    RegexIRPrefixMask range
+        )
+        {
+            return range switch
+            {
+                RegexIRPrefixMask.ExeCondition => (int)(mask & RegexIRPrefixMask.ExeCondition) >> 0,
+                RegexIRPrefixMask.PopCondition => (int)(mask & RegexIRPrefixMask.PopCondition) >> 3,
+                RegexIRPrefixMask.ObserveMethod => (int)(mask & RegexIRPrefixMask.ObserveMethod) >> 5,
+                _ => throw new ArgumentOutOfRangeException(nameof(range), range, null)
+            };
+        }
+
+    }
+}