Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/Configuration/CapabilitiesSection.cs

@@ -0,0 +1,67 @@
+//------------------------------------------------------------------------------
+// <copyright file="CapabilitiesSection.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.Configuration {
+    
+    using System.Collections;
+    using System.Collections.Specialized;
+    using System.Diagnostics;
+    using System.Globalization;
+    using System.Reflection;
+    using System.Security;
+    using System.Text;
+    using System.Text.RegularExpressions;
+    using System.Threading;
+    using System.Web.Caching;
+    using System.Web.Compilation;
+    using System.Web.Hosting;
+    using System.Security.Permissions;
+
+    //
+    // Implementation of <filter match="Mozilla/\d+\.\d+" with="${something}" />
+    // expand the "with" pattern and match against the "match" expression.
+    //
+    internal class CapabilitiesSection : CapabilitiesRule {
+        internal CapabilitiesPattern _expr;
+        internal DelayedRegex _regex;
+        internal CapabilitiesRule[] _rules;
+
+        internal CapabilitiesSection(int type, DelayedRegex regex, CapabilitiesPattern expr, ArrayList rulelist) {
+            _type = type;
+            _regex = regex;
+            _expr = expr;
+            _rules = (CapabilitiesRule[])rulelist.ToArray(typeof(CapabilitiesRule));
+        }
+
+        internal override void Evaluate(CapabilitiesState state) {
+            Match match;
+
+            state.Exit = false;
+
+            if (_regex != null) {
+                match = _regex.Match(_expr.Expand(state));
+
+                if (!match.Success)
+                    return;
+
+                state.AddMatch(_regex, match);
+            }
+
+            for (int i = 0; i < _rules.Length; i++) {
+                _rules[i].Evaluate(state);
+
+                if (state.Exit)
+                    break;
+            }
+
+            if (_regex != null) {
+                state.PopMatch();
+            }
+
+            state.Exit = (Type == Case);
+        }
+    }
+}