1324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// [The "BSD licence"] 2324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// Copyright (c) 2007 Kay Roepke 2010 Alan Condit 3324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// All rights reserved. 4324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 5324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// Redistribution and use in source and binary forms, with or without 6324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// modification, are permitted provided that the following conditions 7324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// are met: 8324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 1. Redistributions of source code must retain the above copyright 9324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// notice, this list of conditions and the following disclaimer. 10324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 2. Redistributions in binary form must reproduce the above copyright 11324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// notice, this list of conditions and the following disclaimer in the 12324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// documentation and/or other materials provided with the distribution. 13324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 3. The name of the author may not be used to endorse or promote products 14324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// derived from this software without specific prior written permission. 15324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 16324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 27324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#import <Cocoa/Cocoa.h> 28324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#import "ANTLRToken.h" 29324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#import "ANTLRBitSet.h" 30324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#import "ANTLRRuleStack.h" 31324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#import "AMutableArray.h" 32324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 33324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@interface ANTLRRecognizerSharedState : NSObject { 34324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver __strong AMutableArray *following; // a stack of FOLLOW bitsets used for context sensitive prediction and recovery 35324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSInteger _fsp; // Follow stack pointer 36324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver BOOL errorRecovery; // are we recovering? 37324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSInteger lastErrorIndex; 38324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver BOOL failed; // indicate that some match failed 39324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSInteger syntaxErrors; 40324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSInteger backtracking; // the level of backtracking 41324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver __strong ANTLRRuleStack *ruleMemo; // store previous results of matching rules so we don't have to do it again. Hook in incremental stuff here, too. 42324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 43324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver __strong id<ANTLRToken> token; 44324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSInteger tokenStartCharIndex; 45324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSUInteger tokenStartLine; 46324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSUInteger tokenStartCharPositionInLine; 47324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSUInteger channel; 48324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSUInteger type; 49324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSString *text; 50324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 51324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 52324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (retain, getter=getFollowing, setter=setFollowing:) AMutableArray *following; 53324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign) NSInteger _fsp; 54324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign) BOOL errorRecovery; 55324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign) NSInteger lastErrorIndex; 56324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign, getter=getFailed, setter=setFailed:) BOOL failed; 57324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign) NSInteger syntaxErrors; 58324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign, getter=getBacktracking, setter=setBacktracking:) NSInteger backtracking; 59324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (retain, getter=getRuleMemo, setter=setRuleMemo:) ANTLRRuleStack *ruleMemo; 60324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (copy, getter=getToken, setter=setToken:) id<ANTLRToken> token; 61324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (getter=type,setter=setType:) NSUInteger type; 62324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (getter=channel,setter=setChannel:) NSUInteger channel; 63324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (getter=getTokenStartLine,setter=setTokenStartLine:) NSUInteger tokenStartLine; 64324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (getter=charPositionInLine,setter=setCharPositionInLine:) NSUInteger tokenStartCharPositionInLine; 65324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (getter=getTokenStartCharIndex,setter=setTokenStartCharIndex:) NSInteger tokenStartCharIndex; 66324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (retain, getter=text, setter=setText:) NSString *text; 67324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 68324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver+ (ANTLRRecognizerSharedState *) newANTLRRecognizerSharedState; 69324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver+ (ANTLRRecognizerSharedState *) newANTLRRecognizerSharedStateWithRuleLen:(NSInteger)aLen; 70324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver+ (ANTLRRecognizerSharedState *) newANTLRRecognizerSharedState:(ANTLRRecognizerSharedState *)aState; 71324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 72324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) init; 73324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) initWithRuleLen:(NSInteger)aLen; 74324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) initWithState:(ANTLRRecognizerSharedState *)state; 75324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 76324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id<ANTLRToken>) getToken; 77324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setToken:(id<ANTLRToken>) theToken; 78324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 79324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSUInteger)type; 80324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setType:(NSUInteger) theTokenType; 81324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 82324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSUInteger)channel; 83324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setChannel:(NSUInteger) theChannel; 84324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 85324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSUInteger) getTokenStartLine; 86324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setTokenStartLine:(NSUInteger) theTokenStartLine; 87324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 88324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSUInteger) charPositionInLine; 89324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setCharPositionInLine:(NSUInteger) theCharPosition; 90324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 91324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSInteger) getTokenStartCharIndex; 92324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setTokenStartCharIndex:(NSInteger) theTokenStartCharIndex; 93324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 94324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSString *)text; 95324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setText:(NSString *) theText; 96324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 97324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 98324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (AMutableArray *) getFollowing; 99324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void)setFollowing:(AMutableArray *)aFollow; 100324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (ANTLRRuleStack *) getRuleMemo; 101324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void)setRuleMemo:(ANTLRRuleStack *)aRuleMemo; 102324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (BOOL) isErrorRecovery; 103324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setIsErrorRecovery: (BOOL) flag; 104324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 105324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (BOOL) getFailed; 106324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setFailed: (BOOL) flag; 107324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 108324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSInteger) getBacktracking; 109324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setBacktracking:(NSInteger) value; 110324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) increaseBacktracking; 111324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) decreaseBacktracking; 112324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (BOOL) isBacktracking; 113324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 114324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSInteger) lastErrorIndex; 115324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setLastErrorIndex:(NSInteger) value; 116324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 117324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@end 118