Formatter checkpoint.

editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/formatter/edit/StringEditBuilder.java

Index: editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/formatter/edit/StringEditBuilder.java
===================================================================
--- editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/formatter/edit/StringEditBuilder.java	(revision 0)
+++ editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/formatter/edit/StringEditBuilder.java	(revision 0)
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2012, the Dart project authors.
+ * 
+ * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ * 
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.dart.engine.internal.formatter.edit;
+
+import com.google.dart.engine.formatter.edit.Edit;
+import com.google.dart.engine.formatter.edit.EditBuilder;
+import com.google.dart.engine.formatter.edit.EditOperation;
+
+import java.util.List;
+
+/**
+ * An edit builder that produces simple string edit operations.
+ */
+public class StringEditBuilder implements EditBuilder<String, String> {
+
+  @Override
+  public EditOperation<String, String> buildEdit(List<Edit> edits) {
+    return new StringEditOperation(edits);
+  }
+
+}