import ast sys for regex runtime build

2026-02-04 09:27:56 +08:00
parent fe0e4ad7a4
commit f1688583cf
15 changed files with 1141 additions and 37 deletions
@@ -36,9 +36,11 @@ using System.Threading.Tasks;

 namespace StgSharp.RegularAnalysis
 {
-    internal  class RegularBranchNode : RegularStateNode
+    internal sealed class RegularBranchNode : RegularStateNode
    {

+        private int _afterBranch;
+
        private int _lastBranch;

        private List<BranchMeasureResult> _result;
@@ -59,15 +61,26 @@ namespace StgSharp.RegularAnalysis
                             out int label
        )
        {
-            int pos = context.LastBranch.Peek();
-            if (AvailableNodes.Length > _lastBranch)
+            if (context.StateCode == 0)
            {
-                // return measure result
-                label = 0;
+                // branch match
+                label = _afterBranch;
+                _ = context.LastBranch.Pop();
+                _lastBranch = 0;
                return true;
            }
-            label = FailNodeIndex;
-            return false;
+
+            // restore sequence position
+            int pos = context.LastBranch.Peek();
+            context.Position = pos;
+            if (AvailableNodes.Length > _lastBranch)
+            {
+                label = FailNodeIndex;
+                return false;
+            }
+            _lastBranch++;
+            label = AvailableNodes[_lastBranch];
+            return true;
        }

    }