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diff --git a/runtime/ObjC/ANTLR.framework/Versions/Current/Headers/ANTLRBitSet.h b/runtime/ObjC/ANTLR.framework/Versions/Current/Headers/ANTLRBitSet.h
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+++ b/runtime/ObjC/ANTLR.framework/Versions/Current/Headers/ANTLRBitSet.h
@@ -0,0 +1,93 @@
+// [The "BSD licence"]
+// Copyright (c) 2006-2007 Kay Roepke 2010 Alan Condit
+// 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.
+
+
+#import <Cocoa/Cocoa.h>
+#import <CoreFoundation/CoreFoundation.h>
+#import "ANTLRToken.h"
+
+#define BITS (sizeof(NSUInteger) * 8)
+#define LOG_BITS ((sizeof(NSUInteger)==8)?6:5)
+
+// A simple wrapper around CoreFoundation bit vectors to shield the rest of the implementation
+// from the specifics of the BitVector initialization and query functions.
+// This is fast, so there is no need to reinvent the wheel just yet.
+
+@interface ANTLRBitSet : NSObject < NSMutableCopying > {
+	CFMutableBitVectorRef bitVector;
+}
+
+#pragma mark Class Methods
+
++ (ANTLRBitSet *) newANTLRBitSet;
++ (ANTLRBitSet *) newANTLRBitSetWithType:(ANTLRTokenType)type;
+/** Construct a ANTLRBitSet given the size
+ * @param nbits The size of the ANTLRBitSet in bits
+ */
++ (ANTLRBitSet *) newANTLRBitSetWithNBits:(NSUInteger)nbits;
++ (ANTLRBitSet *) newANTLRBitSetWithArray:(NSMutableArray *)types;
++ (ANTLRBitSet *) newANTLRBitSetWithBits:(const unsigned long long *)theBits Count:(NSUInteger)longCount;
+
++ (ANTLRBitSet *) of:(NSUInteger)el;
++ (ANTLRBitSet *) of:(NSUInteger)a And2:(NSUInteger)b;
++ (ANTLRBitSet *) of:(NSUInteger)a And2:(NSUInteger)b And3:(NSUInteger)c;
++ (ANTLRBitSet *) of:(NSUInteger)a And2:(NSUInteger)b And3:(NSUInteger)c And4:(NSUInteger)d;
+
+#pragma mark Initializer
+
+- (ANTLRBitSet *) init;
+- (ANTLRBitSet *) initWithType:(ANTLRTokenType)type;
+- (ANTLRBitSet *) initWithNBits:(NSUInteger)nbits;
+- (ANTLRBitSet *) initWithBitVector:(CFMutableBitVectorRef)theBitVector;
+- (ANTLRBitSet *) initWithBits:(const unsigned long long const*)theBits Count:(NSUInteger)theCount;
+- (ANTLRBitSet *) initWithArrayOfBits:(NSArray *)theArray;
+
+#pragma mark Operations
+- (ANTLRBitSet *) or:(ANTLRBitSet *) aBitSet;
+- (void) orInPlace:(ANTLRBitSet *) aBitSet;
+- (void) add:(NSUInteger) bit;
+- (void) remove:(NSUInteger) bit;
+- (void) setAllBits:(BOOL) aState;
+
+- (NSInteger) numBits;
+- (NSUInteger) size;
+- (void) setSize:(NSUInteger) noOfWords;
+
+#pragma mark Informational
+- (unsigned long long) bitMask:(NSUInteger) bitNumber;
+- (BOOL) member:(NSUInteger)bitNumber;
+- (BOOL) isNil;
+- (NSString *) toString;
+- (NSString *) description;
+
+#pragma mark NSCopying support
+
+- (id) mutableCopyWithZone:(NSZone *) theZone;
+
+
+//private
+- (CFMutableBitVectorRef) _bitVector;
+@end