| // [The "BSD licence"] |
| // Copyright (c) 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 "ANTLRToken.h" |
| #import "ANTLRBitSet.h" |
| #import "ANTLRRuleStack.h" |
| |
| @interface ANTLRRecognizerSharedState : NSObject { |
| NSMutableArray *following; // a stack of FOLLOW bitsets used for context sensitive prediction and recovery |
| NSInteger _fsp; // Follow stack pointer |
| BOOL errorRecovery; // are we recovering? |
| NSInteger lastErrorIndex; |
| BOOL failed; // indicate that some match failed |
| NSInteger syntaxErrors; |
| NSInteger backtracking; // the level of backtracking |
| ANTLRRuleStack *ruleMemo; // store previous results of matching rules so we don't have to do it again. Hook in incremental stuff here, too. |
| |
| id<ANTLRToken> token; |
| NSInteger tokenStartCharIndex; |
| NSUInteger tokenStartLine; |
| NSUInteger tokenStartCharPositionInLine; |
| NSUInteger channel; |
| NSUInteger type; |
| NSString *text; |
| } |
| |
| @property (retain, getter=getFollowing, setter=setFollowing:) NSMutableArray *following; |
| @property (assign) NSInteger _fsp; |
| @property (assign) BOOL errorRecovery; |
| @property (assign) NSInteger lastErrorIndex; |
| @property (assign, getter=getFailed, setter=setFailed:) BOOL failed; |
| @property (assign) NSInteger syntaxErrors; |
| @property (assign, getter=getBacktracking, setter=setBacktracking) NSInteger backtracking; |
| @property (retain, getter=getRuleMemo, setter=setRuleMemo:) ANTLRRuleStack *ruleMemo; |
| @property (copy, getter=getToken, setter=setToken) id<ANTLRToken> token; |
| @property (getter=getType,setter=setType:) NSUInteger type; |
| @property (getter=getChannel,setter=setChannel:) NSUInteger channel; |
| @property (getter=getTokenStartLine,setter=setTokenStartLine:) NSUInteger tokenStartLine; |
| @property (getter=getCharPositionInLine,setter=setCharPositionInLine:) NSUInteger tokenStartCharPositionInLine; |
| @property (getter=getTokenStartCharIndex,setter=setTokenStartCharIndex:) NSInteger tokenStartCharIndex; |
| @property (retain, getter=getText, setter=setText) NSString *text; |
| |
| + (ANTLRRecognizerSharedState *) newANTLRRecognizerSharedState; |
| + (ANTLRRecognizerSharedState *) newANTLRRecognizerSharedStateWithRuleLen:(NSInteger)aLen; |
| + (ANTLRRecognizerSharedState *) newANTLRRecognizerSharedState:(ANTLRRecognizerSharedState *)aState; |
| |
| - (id) init; |
| - (id) initWithRuleLen:(NSInteger)aLen; |
| - (id) initWithState:(ANTLRRecognizerSharedState *)state; |
| |
| - (id<ANTLRToken>) getToken; |
| - (void) setToken:(id<ANTLRToken>) theToken; |
| |
| - (NSUInteger) getType; |
| - (void) setType:(NSUInteger) theTokenType; |
| |
| - (NSUInteger) getChannel; |
| - (void) setChannel:(NSUInteger) theChannel; |
| |
| - (NSUInteger) getTokenStartLine; |
| - (void) setTokenStartLine:(NSUInteger) theTokenStartLine; |
| |
| - (NSUInteger) getCharPositionInLine; |
| - (void) setCharPositionInLine:(NSUInteger) theCharPosition; |
| |
| - (NSInteger) getTokenStartCharIndex; |
| - (void) setTokenStartCharIndex:(NSInteger) theTokenStartCharIndex; |
| |
| - (NSString *) getText; |
| - (void) setText:(NSString *) theText; |
| |
| |
| - (NSMutableArray *) getFollowing; |
| - (void)setFollowing:(NSMutableArray *)aFollow; |
| - (ANTLRRuleStack *) getRuleMemo; |
| - (void)setRuleMemo:(ANTLRRuleStack *)aRuleMemo; |
| - (BOOL) isErrorRecovery; |
| - (void) setIsErrorRecovery: (BOOL) flag; |
| |
| - (BOOL) getFailed; |
| - (void) setFailed: (BOOL) flag; |
| |
| - (NSInteger) getBacktracking; |
| - (void) setBacktracking:(NSInteger) value; |
| - (void) increaseBacktracking; |
| - (void) decreaseBacktracking; |
| - (BOOL) isBacktracking; |
| |
| - (NSInteger) lastErrorIndex; |
| - (void) setLastErrorIndex:(NSInteger) value; |
| |
| @end |