| // [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 "RecognizerSharedState.h" |
| #import "CharStream.h" |
| #import "CommonToken.h" |
| #import "MismatchedTokenException.h" |
| #import "MismatchedRangeException.h" |
| |
| @implementation RecognizerSharedState |
| |
| @synthesize following; |
| @synthesize _fsp; |
| @synthesize errorRecovery; |
| @synthesize lastErrorIndex; |
| @synthesize failed; |
| @synthesize syntaxErrors; |
| @synthesize backtracking; |
| @synthesize ruleMemo; |
| @synthesize token; |
| @synthesize type; |
| @synthesize channel; |
| @synthesize tokenStartLine; |
| @synthesize tokenStartCharPositionInLine; |
| @synthesize tokenStartCharIndex; |
| @synthesize text; |
| |
| + (RecognizerSharedState *) newRecognizerSharedState |
| { |
| return [[[RecognizerSharedState alloc] init] retain]; |
| } |
| |
| + (RecognizerSharedState *) newRecognizerSharedStateWithRuleLen:(NSInteger)aLen |
| { |
| return [[[RecognizerSharedState alloc] initWithRuleLen:aLen] retain]; |
| } |
| |
| + (RecognizerSharedState *) newRecognizerSharedState:(RecognizerSharedState *)aState |
| { |
| return [[[RecognizerSharedState alloc] initWithState:aState] retain]; |
| } |
| |
| - (id) init |
| { |
| HashRule *aHashRule; |
| if ((self = [super init]) != nil ) { |
| following = [[AMutableArray arrayWithCapacity:10] retain]; |
| _fsp = -1; |
| errorRecovery = NO; // are we recovering? |
| lastErrorIndex = -1; |
| failed = NO; // indicate that some match failed |
| syntaxErrors = 0; |
| backtracking = 0; // the level of backtracking |
| tokenStartCharIndex = -1; |
| tokenStartLine = 0; |
| int cnt = 200; |
| ruleMemo = [[RuleStack newRuleStack:cnt] retain]; |
| for (int i = 0; i < cnt; i++ ) { |
| aHashRule = [[HashRule newHashRuleWithLen:17] retain]; |
| [ruleMemo addObject:aHashRule]; |
| } |
| #ifdef DONTUSEYET |
| token = state.token; |
| tokenStartCharIndex = state.tokenStartCharIndex; |
| tokenStartCharPositionInLine = state.tokenStartCharPositionInLine; |
| channel = state.channel; |
| type = state.type; |
| text = state.text; |
| #endif |
| } |
| return self; |
| } |
| |
| - (id) initWithRuleLen:(NSInteger)aLen |
| { |
| HashRule *aHashRule; |
| if ((self = [super init]) != nil ) { |
| following = [[AMutableArray arrayWithCapacity:10] retain]; |
| _fsp = -1; |
| errorRecovery = NO; // are we recovering? |
| lastErrorIndex = -1; |
| failed = NO; // indicate that some match failed |
| syntaxErrors = 0; |
| backtracking = 0; // the level of backtracking |
| tokenStartCharIndex = -1; |
| tokenStartLine = 0; |
| ruleMemo = [[RuleStack newRuleStack:aLen] retain]; |
| for (int i = 0; i < aLen; i++ ) { |
| aHashRule = [[HashRule newHashRuleWithLen:17] retain]; |
| [ruleMemo addObject:aHashRule]; |
| } |
| #ifdef DONTUSEYET |
| token = state.token; |
| tokenStartCharIndex = state.tokenStartCharIndex; |
| tokenStartCharPositionInLine = state.tokenStartCharPositionInLine; |
| channel = state.channel; |
| type = state.type; |
| text = state.text; |
| #endif |
| } |
| return self; |
| } |
| |
| - (id) initWithState:(RecognizerSharedState *)aState |
| { |
| HashRule *aHashRule; |
| if ( [following count] < [aState.following count] ) { |
| // following = new BitSet[state.following.size]; |
| } |
| [following setArray:aState.following]; |
| _fsp = aState._fsp; |
| errorRecovery = aState.errorRecovery; |
| lastErrorIndex = aState.lastErrorIndex; |
| failed = aState.failed; |
| syntaxErrors = aState.syntaxErrors; |
| backtracking = aState.backtracking; |
| if ( aState.ruleMemo == nil ) { |
| int cnt = 200; |
| ruleMemo = [[RuleStack newRuleStack:cnt] retain]; |
| for (int i = 0; i < cnt; i++ ) { |
| aHashRule = [[HashRule newHashRuleWithLen:17] retain]; |
| [ruleMemo addObject:aHashRule]; |
| } |
| } |
| else { |
| ruleMemo = aState.ruleMemo; |
| if ( [ruleMemo count] == 0 ) { |
| int cnt = [ruleMemo length]; |
| for (int i = 0; i < cnt; i++ ) { |
| [ruleMemo addObject:[[HashRule newHashRuleWithLen:17] retain]]; |
| } |
| } |
| else { |
| [ruleMemo addObjectsFromArray:aState.ruleMemo]; |
| } |
| } |
| token = aState.token; |
| tokenStartCharIndex = aState.tokenStartCharIndex; |
| tokenStartCharPositionInLine = aState.tokenStartCharPositionInLine; |
| tokenStartLine = aState.tokenStartLine; |
| channel = aState.channel; |
| type = aState.type; |
| text = aState.text; |
| return( self ); |
| } |
| |
| - (void) dealloc |
| { |
| #ifdef DEBUG_DEALLOC |
| NSLog( @"called dealloc in RecognizerSharedState" ); |
| #endif |
| if ( token ) [token release]; |
| if ( following ) [following release]; |
| if ( ruleMemo ) [ruleMemo release]; |
| [super dealloc]; |
| } |
| |
| // token stuff |
| #pragma mark Tokens |
| |
| - (id<Token>)getToken |
| { |
| return token; |
| } |
| |
| - (void) setToken: (id<Token>) aToken |
| { |
| if (token != aToken) { |
| [aToken retain]; |
| if ( token ) [token release]; |
| token = aToken; |
| } |
| } |
| |
| - (NSUInteger)channel |
| { |
| return channel; |
| } |
| |
| - (void) setChannel:(NSUInteger) theChannel |
| { |
| channel = theChannel; |
| } |
| |
| - (NSUInteger) getTokenStartLine |
| { |
| return tokenStartLine; |
| } |
| |
| - (void) setTokenStartLine:(NSUInteger) theTokenStartLine |
| { |
| tokenStartLine = theTokenStartLine; |
| } |
| |
| - (NSUInteger) charPositionInLine |
| { |
| return tokenStartCharPositionInLine; |
| } |
| |
| - (void) setCharPositionInLine:(NSUInteger) theCharPosition |
| { |
| tokenStartCharPositionInLine = theCharPosition; |
| } |
| |
| - (NSInteger) getTokenStartCharIndex; |
| { |
| return tokenStartCharIndex; |
| } |
| |
| - (void) setTokenStartCharIndex:(NSInteger) theTokenStartCharIndex |
| { |
| tokenStartCharIndex = theTokenStartCharIndex; |
| } |
| |
| // error handling |
| - (void) reportError:(RecognitionException *)e |
| { |
| NSLog(@"%@", e.name); |
| } |
| |
| - (AMutableArray *) getFollowing |
| { |
| return following; |
| } |
| |
| - (void)setFollowing:(AMutableArray *)aFollow |
| { |
| if ( following != aFollow ) { |
| if ( following ) [following release]; |
| [aFollow retain]; |
| } |
| following = aFollow; |
| } |
| |
| - (RuleStack *) getRuleMemo |
| { |
| return ruleMemo; |
| } |
| |
| - (void)setRuleMemo:(RuleStack *)aRuleMemo |
| { |
| if ( ruleMemo != aRuleMemo ) { |
| if ( ruleMemo ) [ruleMemo release]; |
| [aRuleMemo retain]; |
| } |
| ruleMemo = aRuleMemo; |
| } |
| |
| - (BOOL) isErrorRecovery |
| { |
| return errorRecovery; |
| } |
| |
| - (void) setIsErrorRecovery: (BOOL) flag |
| { |
| errorRecovery = flag; |
| } |
| |
| |
| - (BOOL) getFailed |
| { |
| return failed; |
| } |
| |
| - (void) setFailed:(BOOL)flag |
| { |
| failed = flag; |
| } |
| |
| |
| - (NSInteger) backtracking |
| { |
| return backtracking; |
| } |
| |
| - (void) setBacktracking:(NSInteger) value |
| { |
| backtracking = value; |
| } |
| |
| - (void) increaseBacktracking |
| { |
| backtracking++; |
| } |
| |
| - (void) decreaseBacktracking |
| { |
| backtracking--; |
| } |
| |
| - (BOOL) isBacktracking |
| { |
| return backtracking > 0; |
| } |
| |
| |
| - (NSInteger) lastErrorIndex |
| { |
| return lastErrorIndex; |
| } |
| |
| - (void) setLastErrorIndex:(NSInteger) value |
| { |
| lastErrorIndex = value; |
| } |
| |
| |
| @end |