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diff --git a/antlr/libantlr3c-3.4/src/antlr3basetree.c b/antlr/libantlr3c-3.4/src/antlr3basetree.c
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+#include <antlr3basetree.h>
+
+#ifdef ANTLR3_WINDOWS
+#pragma warning( disable : 4100 )
+#endif
+
+// [The "BSD licence"]
+// Copyright (c) 2005-2009 Jim Idle, Temporal Wave LLC
+// http://www.temporal-wave.com
+// http://www.linkedin.com/in/jimidle
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+// 3. The name of the author may not be used to endorse or promote products
+// derived from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+static void * getChild (pANTLR3_BASE_TREE tree, ANTLR3_UINT32 i);
+static ANTLR3_UINT32 getChildCount (pANTLR3_BASE_TREE tree);
+static ANTLR3_UINT32 getCharPositionInLine
+(pANTLR3_BASE_TREE tree);
+static ANTLR3_UINT32 getLine (pANTLR3_BASE_TREE tree);
+static pANTLR3_BASE_TREE
+getFirstChildWithType
+(pANTLR3_BASE_TREE tree, ANTLR3_UINT32 type);
+static void addChild (pANTLR3_BASE_TREE tree, pANTLR3_BASE_TREE child);
+static void addChildren (pANTLR3_BASE_TREE tree, pANTLR3_LIST kids);
+static void replaceChildren (pANTLR3_BASE_TREE parent, ANTLR3_INT32 startChildIndex, ANTLR3_INT32 stopChildIndex, pANTLR3_BASE_TREE t);
+
+static void freshenPACIndexesAll(pANTLR3_BASE_TREE tree);
+static void freshenPACIndexes (pANTLR3_BASE_TREE tree, ANTLR3_UINT32 offset);
+
+static void setChild (pANTLR3_BASE_TREE tree, ANTLR3_UINT32 i, void * child);
+static void * deleteChild (pANTLR3_BASE_TREE tree, ANTLR3_UINT32 i);
+static void * dupTree (pANTLR3_BASE_TREE tree);
+static pANTLR3_STRING toStringTree (pANTLR3_BASE_TREE tree);
+
+
+ANTLR3_API pANTLR3_BASE_TREE
+antlr3BaseTreeNew(pANTLR3_BASE_TREE tree)
+{
+ /* api */
+ tree->getChild = getChild;
+ tree->getChildCount = getChildCount;
+ tree->addChild = (void (*)(pANTLR3_BASE_TREE, void *))(addChild);
+ tree->addChildren = addChildren;
+ tree->setChild = setChild;
+ tree->deleteChild = deleteChild;
+ tree->dupTree = dupTree;
+ tree->toStringTree = toStringTree;
+ tree->getCharPositionInLine = getCharPositionInLine;
+ tree->getLine = getLine;
+ tree->replaceChildren = replaceChildren;
+ tree->freshenPACIndexesAll = freshenPACIndexesAll;
+ tree->freshenPACIndexes = freshenPACIndexes;
+ tree->getFirstChildWithType = (void *(*)(pANTLR3_BASE_TREE, ANTLR3_UINT32))(getFirstChildWithType);
+ tree->children = NULL;
+ tree->strFactory = NULL;
+
+ /* Rest must be filled in by caller.
+ */
+ return tree;
+}
+
+static ANTLR3_UINT32
+getCharPositionInLine (pANTLR3_BASE_TREE tree)
+{
+ return 0;
+}
+
+static ANTLR3_UINT32
+getLine (pANTLR3_BASE_TREE tree)
+{
+ return 0;
+}
+static pANTLR3_BASE_TREE
+getFirstChildWithType (pANTLR3_BASE_TREE tree, ANTLR3_UINT32 type)
+{
+ ANTLR3_UINT32 i;
+ ANTLR3_UINT32 cs;
+
+ pANTLR3_BASE_TREE t;
+ if (tree->children != NULL)
+ {
+ cs = tree->children->size(tree->children);
+ for (i = 0; i < cs; i++)
+ {
+ t = (pANTLR3_BASE_TREE) (tree->children->get(tree->children, i));
+ if (tree->getType(t) == type)
+ {
+ return (pANTLR3_BASE_TREE)t;
+ }
+ }
+ }
+ return NULL;
+}
+
+
+
+static void *
+getChild (pANTLR3_BASE_TREE tree, ANTLR3_UINT32 i)
+{
+ if ( tree->children == NULL
+ || i >= tree->children->size(tree->children))
+ {
+ return NULL;
+ }
+ return tree->children->get(tree->children, i);
+}
+
+
+static ANTLR3_UINT32
+getChildCount (pANTLR3_BASE_TREE tree)
+{
+ if (tree->children == NULL)
+ {
+ return 0;
+ }
+ else
+ {
+ return tree->children->size(tree->children);
+ }
+}
+
+void
+addChild (pANTLR3_BASE_TREE tree, pANTLR3_BASE_TREE child)
+{
+ ANTLR3_UINT32 n;
+ ANTLR3_UINT32 i;
+
+ if (child == NULL)
+ {
+ return;
+ }
+
+ if (child->isNilNode(child) == ANTLR3_TRUE)
+ {
+ if (child->children != NULL && child->children == tree->children)
+ {
+ // TODO: Change to exception rather than ANTLR3_FPRINTF?
+ //
+ ANTLR3_FPRINTF(stderr, "ANTLR3: An attempt was made to add a child list to itself!\n");
+ return;
+ }
+
+ // Add all of the children's children to this list
+ //
+ if (child->children != NULL)
+ {
+ if (tree->children == NULL)
+ {
+ // We are build ing the tree structure here, so we need not
+ // worry about duplication of pointers as the tree node
+ // factory will only clean up each node once. So we just
+ // copy in the child's children pointer as the child is
+ // a nil node (has not root itself).
+ //
+ tree->children = child->children;
+ child->children = NULL;
+ freshenPACIndexesAll(tree);
+
+ }
+ else
+ {
+ // Need to copy the children
+ //
+ n = child->children->size(child->children);
+
+ for (i = 0; i < n; i++)
+ {
+ pANTLR3_BASE_TREE entry;
+ entry = child->children->get(child->children, i);
+
+ // ANTLR3 lists can be sparse, unlike Array Lists
+ //
+ if (entry != NULL)
+ {
+ tree->children->add(tree->children, entry, (void (ANTLR3_CDECL *) (void *))child->free);
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ // Tree we are adding is not a Nil and might have children to copy
+ //
+ if (tree->children == NULL)
+ {
+ // No children in the tree we are adding to, so create a new list on
+ // the fly to hold them.
+ //
+ tree->createChildrenList(tree);
+ }
+
+ tree->children->add(tree->children, child, (void (ANTLR3_CDECL *)(void *))child->free);
+
+ }
+}
+
+/// Add all elements of the supplied list as children of this node
+///
+static void
+addChildren (pANTLR3_BASE_TREE tree, pANTLR3_LIST kids)
+{
+ ANTLR3_UINT32 i;
+ ANTLR3_UINT32 s;
+
+ s = kids->size(kids);
+ for (i = 0; i<s; i++)
+ {
+ tree->addChild(tree, (pANTLR3_BASE_TREE)(kids->get(kids, i+1)));
+ }
+}
+
+
+static void
+setChild (pANTLR3_BASE_TREE tree, ANTLR3_UINT32 i, void * child)
+{
+ if (tree->children == NULL)
+ {
+ tree->createChildrenList(tree);
+ }
+ tree->children->set(tree->children, i, child, NULL, ANTLR3_FALSE);
+}
+
+static void *
+deleteChild (pANTLR3_BASE_TREE tree, ANTLR3_UINT32 i)
+{
+ if ( tree->children == NULL)
+ {
+ return NULL;
+ }
+
+ return tree->children->remove(tree->children, i);
+}
+
+static void *
+dupTree (pANTLR3_BASE_TREE tree)
+{
+ pANTLR3_BASE_TREE newTree;
+ ANTLR3_UINT32 i;
+ ANTLR3_UINT32 s;
+
+ newTree = tree->dupNode (tree);
+
+ if (tree->children != NULL)
+ {
+ s = tree->children->size (tree->children);
+
+ for (i = 0; i < s; i++)
+ {
+ pANTLR3_BASE_TREE t;
+ pANTLR3_BASE_TREE newNode;
+
+ t = (pANTLR3_BASE_TREE) tree->children->get(tree->children, i);
+
+ if (t!= NULL)
+ {
+ newNode = t->dupTree(t);
+ newTree->addChild(newTree, newNode);
+ }
+ }
+ }
+
+ return newTree;
+}
+
+static pANTLR3_STRING
+toStringTree (pANTLR3_BASE_TREE tree)
+{
+ pANTLR3_STRING string;
+ ANTLR3_UINT32 i;
+ ANTLR3_UINT32 n;
+ pANTLR3_BASE_TREE t;
+
+ if (tree->children == NULL || tree->children->size(tree->children) == 0)
+ {
+ return tree->toString(tree);
+ }
+
+ /* Need a new string with nothing at all in it.
+ */
+ string = tree->strFactory->newRaw(tree->strFactory);
+
+ if (tree->isNilNode(tree) == ANTLR3_FALSE)
+ {
+ string->append8 (string, "(");
+ string->appendS (string, tree->toString(tree));
+ string->append8 (string, " ");
+ }
+ if (tree->children != NULL)
+ {
+ n = tree->children->size(tree->children);
+
+ for (i = 0; i < n; i++)
+ {
+ t = (pANTLR3_BASE_TREE) tree->children->get(tree->children, i);
+
+ if (i > 0)
+ {
+ string->append8(string, " ");
+ }
+ string->appendS(string, t->toStringTree(t));
+ }
+ }
+ if (tree->isNilNode(tree) == ANTLR3_FALSE)
+ {
+ string->append8(string,")");
+ }
+
+ return string;
+}
+
+/// Delete children from start to stop and replace with t even if t is
+/// a list (nil-root tree). Num of children can increase or decrease.
+/// For huge child lists, inserting children can force walking rest of
+/// children to set their child index; could be slow.
+///
+static void
+replaceChildren (pANTLR3_BASE_TREE parent, ANTLR3_INT32 startChildIndex, ANTLR3_INT32 stopChildIndex, pANTLR3_BASE_TREE newTree)
+{
+ ANTLR3_INT32 replacingHowMany; // How many nodes will go away
+ ANTLR3_INT32 replacingWithHowMany; // How many nodes will replace them
+ ANTLR3_INT32 numNewChildren; // Tracking variable
+ ANTLR3_INT32 delta; // Difference in new vs existing count
+
+ ANTLR3_INT32 i;
+ ANTLR3_INT32 j;
+
+ pANTLR3_VECTOR newChildren; // Iterator for whatever we are going to add in
+ ANTLR3_BOOLEAN freeNewChildren; // Whether we created the iterator locally or reused it
+
+ if (parent->children == NULL)
+ {
+ ANTLR3_FPRINTF(stderr, "replaceChildren call: Indexes are invalid; no children in list for %s", parent->getText(parent)->chars);
+ return;
+ }
+
+ // Either use the existing list of children in the supplied nil node, or build a vector of the
+ // tree we were given if it is not a nil node, then we treat both situations exactly the same
+ //
+ if (newTree->isNilNode(newTree))
+ {
+ newChildren = newTree->children;
+ freeNewChildren = ANTLR3_FALSE; // We must NO free this memory
+ }
+ else
+ {
+ newChildren = antlr3VectorNew(1);
+ if (newChildren == NULL)
+ {
+ ANTLR3_FPRINTF(stderr, "replaceChildren: out of memory!!");
+ exit(1);
+ }
+ newChildren->add(newChildren, (void *)newTree, NULL);
+
+ freeNewChildren = ANTLR3_TRUE; // We must free this memory
+ }
+
+ // Initialize
+ //
+ replacingHowMany = stopChildIndex - startChildIndex + 1;
+ replacingWithHowMany = newChildren->size(newChildren);
+ delta = replacingHowMany - replacingWithHowMany;
+ numNewChildren = newChildren->size(newChildren);
+
+ // If it is the same number of nodes, then do a direct replacement
+ //
+ if (delta == 0)
+ {
+ pANTLR3_BASE_TREE child;
+
+ // Same number of nodes
+ //
+ j = 0;
+ for (i = startChildIndex; i <= stopChildIndex; i++)
+ {
+ child = (pANTLR3_BASE_TREE) newChildren->get(newChildren, j);
+ parent->children->set(parent->children, i, child, NULL, ANTLR3_FALSE);
+ child->setParent(child, parent);
+ child->setChildIndex(child, i);
+ }
+ }
+ else if (delta > 0)
+ {
+ ANTLR3_UINT32 indexToDelete;
+
+ // Less nodes than there were before
+ // reuse what we have then delete the rest
+ //
+ for (j = 0; j < numNewChildren; j++)
+ {
+ parent->children->set(parent->children, startChildIndex + j, newChildren->get(newChildren, j), NULL, ANTLR3_FALSE);
+ }
+
+ // We just delete the same index position until done
+ //
+ indexToDelete = startChildIndex + numNewChildren;
+
+ for (j = indexToDelete; j <= (ANTLR3_INT32)stopChildIndex; j++)
+ {
+ parent->children->remove(parent->children, indexToDelete);
+ }
+
+ parent->freshenPACIndexes(parent, startChildIndex);
+ }
+ else
+ {
+ ANTLR3_UINT32 numToInsert;
+
+ // More nodes than there were before
+ // Use what we can, then start adding
+ //
+ for (j = 0; j < replacingHowMany; j++)
+ {
+ parent->children->set(parent->children, startChildIndex + j, newChildren->get(newChildren, j), NULL, ANTLR3_FALSE);
+ }
+
+ numToInsert = replacingWithHowMany - replacingHowMany;
+
+ for (j = replacingHowMany; j < replacingWithHowMany; j++)
+ {
+ parent->children->add(parent->children, newChildren->get(newChildren, j), NULL);
+ }
+
+ parent->freshenPACIndexes(parent, startChildIndex);
+ }
+
+ if (freeNewChildren == ANTLR3_TRUE)
+ {
+ ANTLR3_FREE(newChildren->elements);
+ newChildren->elements = NULL;
+ newChildren->size = 0;
+ ANTLR3_FREE(newChildren); // Will not free the nodes
+ }
+}
+
+/// Set the parent and child indexes for all children of the
+/// supplied tree.
+///
+static void
+freshenPACIndexesAll(pANTLR3_BASE_TREE tree)
+{
+ tree->freshenPACIndexes(tree, 0);
+}
+
+/// Set the parent and child indexes for some of the children of the
+/// supplied tree, starting with the child at the supplied index.
+///
+static void
+freshenPACIndexes (pANTLR3_BASE_TREE tree, ANTLR3_UINT32 offset)
+{
+ ANTLR3_UINT32 count;
+ ANTLR3_UINT32 c;
+
+ count = tree->getChildCount(tree); // How many children do we have
+
+ // Loop from the supplied index and set the indexes and parent
+ //
+ for (c = offset; c < count; c++)
+ {
+ pANTLR3_BASE_TREE child;
+
+ child = tree->getChild(tree, c);
+
+ child->setChildIndex(child, c);
+ child->setParent(child, tree);
+ }
+}
+
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