1 // [The "BSD licence"]
2 // Copyright (c) 2006-2007 Kay Roepke 2010 Alan Condit
3 // All rights reserved.
4 //
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions
7 // are met:
8 // 1. Redistributions of source code must retain the above copyright
9 //    notice, this list of conditions and the following disclaimer.
10 // 2. Redistributions in binary form must reproduce the above copyright
11 //    notice, this list of conditions and the following disclaimer in the
12 //    documentation and/or other materials provided with the distribution.
13 // 3. The name of the author may not be used to endorse or promote products
14 //    derived from this software without specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 // IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 // NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 // THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 
27 
28 #import <Foundation/Foundation.h>
29 #import "BaseRecognizer.h"
30 #import "CommonToken.h"
31 #import "TokenStream.h"
32 
33 @interface Parser : BaseRecognizer {
34 	id<TokenStream> input;
35 }
36 + (Parser *)newParser:(id<TokenStream>)anInput;
37 + (Parser *)newParser:(id<TokenStream>)anInput State:(RecognizerSharedState *)aState;
38 
39 - (id) initWithTokenStream:(id<TokenStream>)theStream;
40 - (id) initWithTokenStream:(id<TokenStream>)theStream State:(RecognizerSharedState *)aState;
41 
42 - (id<TokenStream>) input;
43 - (void) setInput: (id<TokenStream>) anInput;
44 
45 - (void) reset;
46 
47 - (id) getCurrentInputSymbol:(id<TokenStream>)anInput;
48 - (CommonToken *)getMissingSymbol:(id<TokenStream>)input
49                              Exception:(RecognitionException *)e
50                                  TType:(NSInteger)expectedTokenType
51                                 BitSet:(ANTLRBitSet *)follow;
52 - (void) setTokenStream:(id<TokenStream>)anInput;
53 - (id<TokenStream>)getTokenStream;
54 - (NSString *)getSourceName;
55 
56 - (void) traceIn:(NSString *)ruleName Index:(int)ruleIndex;
57 - (void) traceOut:(NSString *)ruleName Index:(NSInteger) ruleIndex;
58 
59 @end
60