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[xerial/xerial-core.git] / src / main / java / org / xerial / util / bean / ANTLRWalker.java
diff --git a/src/main/java/org/xerial/util/bean/ANTLRWalker.java b/src/main/java/org/xerial/util/bean/ANTLRWalker.java
deleted file mode 100755 (executable)
index c7e041b..0000000
+++ /dev/null
@@ -1,131 +0,0 @@
-/*--------------------------------------------------------------------------\r
- *  Copyright 2007 Taro L. Saito\r
- *\r
- *  Licensed under the Apache License, Version 2.0 (the "License");\r
- *  you may not use this file except in compliance with the License.\r
- *  You may obtain a copy of the License at\r
- *\r
- *     http://www.apache.org/licenses/LICENSE-2.0\r
- *\r
- *  Unless required by applicable law or agreed to in writing, software\r
- *  distributed under the License is distributed on an "AS IS" BASIS,\r
- *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
- *  See the License for the specific language governing permissions and\r
- *  limitations under the License.\r
- *--------------------------------------------------------------------------*/\r
-//--------------------------------------\r
-// XerialJ\r
-//\r
-// ANTLRWalker.java\r
-// Since: Dec 19, 2007 5:54:17 PM\r
-//\r
-// $URL: http://www.xerial.org/svn/project/XerialJ/trunk/xerial-core/src/main/java/org/xerial/util/bean/ANTLRWalker.java $\r
-// $Author: leo $\r
-//--------------------------------------\r
-package org.xerial.util.bean;\r
-\r
-import java.util.ArrayList;\r
-import java.util.List;\r
-\r
-import org.antlr.runtime.tree.Tree;\r
-import org.xerial.core.XerialException;\r
-import org.xerial.util.tree.TreeNode;\r
-import org.xerial.util.tree.TreeVisitor;\r
-import org.xerial.util.tree.TreeWalker;\r
-\r
-/**\r
- * A walker implementation for ANTLR parse trees\r
- * \r
- * @author leo\r
- * \r
- */\r
-public class ANTLRWalker implements TreeWalker\r
-{\r
-    private final String[] parserTokenNames;\r
-    private Tree currentNode = null;\r
-\r
-    private boolean skipDescendants = false;\r
-\r
-    public ANTLRWalker(final String[] parserTokenNames, Tree parseTree)\r
-    {\r
-        this.parserTokenNames = parserTokenNames;\r
-        this.currentNode = parseTree;\r
-    }\r
-\r
-    public void walk(TreeVisitor visitor) throws XerialException\r
-    {\r
-        visitor.init(this);\r
-        walk(currentNode, visitor);\r
-        visitor.finish(this);\r
-    }\r
-\r
-    public void walk(Tree t, TreeVisitor visitor) throws XerialException\r
-    {\r
-        if (t == null)\r
-            return;\r
-\r
-        currentNode = t;\r
-        int tokenType = t.getType();\r
-        String nodeName = parserTokenNames[tokenType];\r
-\r
-        // invoke visitor\r
-        visitor.visitNode(nodeName, t.getText(), this);\r
-\r
-        // visit child nodes\r
-        if (!skipDescendants)\r
-        {\r
-            for (int i = 0; i < t.getChildCount(); i++)\r
-            {\r
-                Tree child = t.getChild(i);\r
-                walk(child, visitor);\r
-            }\r
-            skipDescendants = false;\r
-        }\r
-\r
-        // leave the current node\r
-        visitor.leaveNode(nodeName, this);\r
-    }\r
-\r
-    public void skipDescendants() throws XerialException\r
-    {\r
-        skipDescendants = true;\r
-    }\r
-\r
-    public TreeNode getSubTree() throws XerialException\r
-    {\r
-        skipDescendants();\r
-        return new ANTLRTreeNodeWrapper(currentNode);\r
-    }\r
-\r
-    class ANTLRTreeNodeWrapper implements TreeNode\r
-    {\r
-        private Tree t;\r
-\r
-        public ANTLRTreeNodeWrapper(Tree t)\r
-        {\r
-            this.t = t;\r
-        }\r
-\r
-        public List<TreeNode> getChildren()\r
-        {\r
-            ArrayList<TreeNode> childList = new ArrayList<TreeNode>();\r
-            for (int i = 0; i < t.getChildCount(); i++)\r
-            {\r
-                childList.add(new ANTLRTreeNodeWrapper(t.getChild(i)));\r
-            }\r
-            return childList;\r
-        }\r
-\r
-        public String getNodeName()\r
-        {\r
-            return parserTokenNames[t.getType()];\r
-        }\r
-\r
-        public String getNodeValue()\r
-        {\r
-            return t.getText();\r
-        }\r
-\r
-    }\r
-\r
-}\r