Using new file structure. Use new regexir display method. Fix line dependency error in prefix analysing.

Signed-off-by: Nitload <YoumuLiu_NSI@whv0t.onmicrosoft.com>

src/StgSharp.RegularAnalysis/Text/RegexIR.Abstraction.cs

@@ -0,0 +1,71 @@
+// -----------------------------------------------------------------------------
+// file="RegexIR.Abstraction"
+// Project: StgSharp
+// Copyright (c) Nitload.
+// SPDX-License-Identifier: MIT
+// -----------------------------------------------------------------------------
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StgSharp.RegularAnalysis.Text
+{
+    internal interface IRegexComplex
+    {
+
+        bool IsFullyOptimized { get; set; }
+
+        int CommandCount { get; set; }
+
+    }
+
+    internal interface IRegexSequence
+    {
+
+        string Pattern { get; }
+
+    }
+
+    internal interface IRegexCount
+    {
+
+        bool IsGreedy { get; }
+
+        bool IsStar { get; }
+
+        bool IsPlus { get; }
+
+        int Min { get; }
+
+        int Max { get; }
+
+    }
+
+    internal abstract class RegexIR
+    {
+
+        protected RegexIR(RegexIRCommand command)
+        {
+            CommandMask = command;
+        }
+
+        public bool SingleLineResultRequired { get; set; }
+
+        public int SingleLineResultIndex { get; set; }
+
+        public RegexIRPrefix Prefix { get; set; }
+
+        internal RegexIRCommand CommandMask { get; init; }
+
+        internal string AsCommand(int lineNum)
+        {
+            return $"[{lineNum:D3}] {Prefix}, {AsCommand()}";
+        }
+
+        protected abstract string AsCommand();
+
+    }
+}