antlr-3.4/runtime/ObjC/Framework/ANTLRTreeParser.h

// [The "BSD licence"]
// Copyright (c) 2006-2007 Kay Roepke 2010 Alan Condit
// All rights reserved.
//
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// 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
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#import <Cocoa/Cocoa.h>
#import "ANTLRBaseRecognizer.h"
#import "ANTLRTreeNodeStream.h"
#import "ANTLRCommonTreeAdaptor.h"
#import "ANTLRMismatchedTreeNodeException.h"

@interface ANTLRTreeParser : ANTLRBaseRecognizer {
	id<ANTLRTreeNodeStream> input;
}

@property (retain, getter=input, setter=setInput:) id<ANTLRTreeNodeStream> input;

+ (id) newANTLRTreeParser:(id<ANTLRTreeNodeStream>)anInput;
+ (id) newANTLRTreeParser:(id<ANTLRTreeNodeStream>)anInput State:(ANTLRRecognizerSharedState *)state;

- (id) initWithStream:(id<ANTLRTreeNodeStream>)theInput;
- (id) initWithStream:(id<ANTLRTreeNodeStream>)theInput
                State:(ANTLRRecognizerSharedState *)state;


- (id<ANTLRTreeNodeStream>)input;
- (void) setInput:(id<ANTLRTreeNodeStream>)anInput;

- (void) setTreeNodeStream:(id<ANTLRTreeNodeStream>) anInput;
- (id<ANTLRTreeNodeStream>) getTreeNodeStream;

- (NSString *)getSourceName;

- (id) getCurrentInputSymbol:(id<ANTLRIntStream>) anInput;

- (id) getMissingSymbol:(id<ANTLRIntStream>)input
              Exception:(ANTLRRecognitionException *) e
          ExpectedToken:(NSInteger) expectedTokenType
                 BitSet:(ANTLRBitSet *)follow;

/** Match '.' in tree parser has special meaning.  Skip node or
 *  entire tree if node has children.  If children, scan until
 *  corresponding UP node.
 */
- (void) matchAny:(id<ANTLRIntStream>)ignore;

/** We have DOWN/UP nodes in the stream that have no line info; override.
 *  plus we want to alter the exception type.  Don't try to recover
 *  from tree parser errors inline...
 */
- (id) recoverFromMismatchedToken:(id<ANTLRIntStream>)anInput
                             Type:(NSInteger)ttype
                           Follow:(ANTLRBitSet *)follow;

/** Prefix error message with the grammar name because message is
 *  always intended for the programmer because the parser built
 *  the input tree not the user.
 */
- (NSString *)getErrorHeader:(ANTLRRecognitionException *)e;

- (NSString *)getErrorMessage:(ANTLRRecognitionException *)e TokenNames:(AMutableArray *) tokenNames;

- (void) traceIn:(NSString *)ruleName Index:(NSInteger)ruleIndex;
- (void) traceOut:(NSString *)ruleName Index:(NSInteger)ruleIndex;

@end