Import code from previous AssetBuilder version

src/ZoneCodeGenerator/Parsing/Matching/Matchers/MatcherGroupAnd.cs

@@ -0,0 +1,40 @@
+using System;
+
+namespace ZoneCodeGenerator.Parsing.Matching.Matchers
+{
+    class MatcherGroupAnd : GroupMatcher
+    {
+        public MatcherGroupAnd(params TokenMatcher[] matchers) : base(matchers)
+        {
+            if(matchers.Length == 0)
+                throw new ArgumentException("A matcher group is supposed to have matchers.");
+        }
+
+        protected override TokenMatchingResult PerformTest(MatchingContext context, int tokenOffset)
+        {
+            var result = new TokenMatchingResult(true, 0);
+
+            foreach(var matcher in Matchers)
+            {
+                var matcherResult = matcher.Test(context, tokenOffset + result.ConsumedTokenCount);
+
+                if (matcherResult.Successful)
+                {
+                    matcherResult.CopyNamedMatchesTo(result);
+                    result.ConsumedTokenCount += matcherResult.ConsumedTokenCount;
+                }
+                else
+                {
+                    return new TokenMatchingResult(false, 0);
+                }
+            }
+
+            return result;
+        }
+
+        protected override string GetIdentifier()
+        {
+            return "GroupAnd";
+        }
+    }
+}