grammarfilterlexer.m

antlr最新版本V3源代码

// $ANTLR 3.0b5 /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g 2006-11-12 20:15:18

#import "GrammarFilterLexer.h"
#pragma mark Cyclic DFAs
@implementation GrammarFilterLexerDFA13
const static int GrammarFilterLexerdfa13_eot[24] =
    {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
     -1};
const static int GrammarFilterLexerdfa13_eof[24] =
    {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
     -1};
const static unichar GrammarFilterLexerdfa13_min[24] =
    {9,9,0,42,9,0,0,0,9,9,9,9,9,9,9,9,9,9,9,9,9,9,0,0};
const static unichar GrammarFilterLexerdfa13_max[24] =
    {125,125,0,47,122,0,0,0,122,122,122,122,122,122,122,122,122,61,122,122,
     122,59,0,0};
const static int GrammarFilterLexerdfa13_accept[24] =
    {-1,-1,5,-1,-1,4,2,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,3};
const static int GrammarFilterLexerdfa13_special[24] =
    {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,0,
     -1};
const static int GrammarFilterLexerdfa13_transition[] = {};
const static int GrammarFilterLexerdfa13_transition0[] = {5, 5, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, 5, -1, -1, -1, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, 
	5, -1, 5, 16, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5};
const static int GrammarFilterLexerdfa13_transition1[] = {21, 21, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 21, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 22};
const static int GrammarFilterLexerdfa13_transition2[] = {5, 5, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, 5, -1, -1, -1, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, 
	5, -1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5};
const static int GrammarFilterLexerdfa13_transition3[] = {5, 5, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, 5, -1, -1, -1, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, 
	5, -1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 13, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5};
const static int GrammarFilterLexerdfa13_transition4[] = {6, -1, -1, -1, 
	-1, 7};
const static int GrammarFilterLexerdfa13_transition5[] = {19, 19, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 19, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 20, 
	20, 20, 20, 20, 20, 20, 20, 20, 20, -1, -1, -1, -1, -1, -1, -1, 20, 20, 
	20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 
	20, 20, 20, 20, 20, 20, -1, -1, -1, -1, 20, -1, 20, 20, 20, 20, 20, 20, 
	20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 
	20, 20};
const static int GrammarFilterLexerdfa13_transition6[] = {5, 5, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, 5, -1, -1, -1, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 12, 5, 5, 5, 5, -1, -1, -1, -1, 
	5, -1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5};
const static int GrammarFilterLexerdfa13_transition7[] = {5, 5, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, 5, -1, -1, -1, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, 
	5, -1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 8, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5};
const static int GrammarFilterLexerdfa13_transition8[] = {5, 5, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, 5, -1, -1, -1, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, 
	5, -1, 5, 5, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5};
const static int GrammarFilterLexerdfa13_transition9[] = {1, 1, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 3, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, -1, -1, -1, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, 
	5, -1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 5, 5, 
	5, 5, 5, 5, -1, -1, 2};
const static int GrammarFilterLexerdfa13_transition10[] = {1, 1, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, -1, -1, -1, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, 
	5, -1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 5, 5, 
	5, 5, 5, 5, -1, -1, 2};
const static int GrammarFilterLexerdfa13_transition11[] = {-1};
const static int GrammarFilterLexerdfa13_transition12[] = {5, 5, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, 5, -1, -1, -1, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, 
	5, -1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 11, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5};
const static int GrammarFilterLexerdfa13_transition13[] = {5, 5, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, 5, -1, -1, -1, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, 
	5, -1, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5};
const static int GrammarFilterLexerdfa13_transition14[] = {17, 17, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 17, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, 18, -1, -1, -1, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, 
	-1, 5, -1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5};
const static int GrammarFilterLexerdfa13_transition15[] = {21, 21, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 21, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 20, 
	20, 20, 20, 20, 20, 20, 20, 20, 20, -1, 22, -1, -1, -1, -1, -1, 20, 20, 
	20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 
	20, 20, 20, 20, 20, 20, -1, -1, -1, -1, 20, -1, 20, 20, 20, 20, 20, 20, 
	20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 
	20, 20};
const static int GrammarFilterLexerdfa13_transition16[] = {17, 17, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 17, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 18};
const static int GrammarFilterLexerdfa13_transition17[] = {5, 5, -1, -1, 
	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
	-1, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, 5, -1, -1, -1, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, -1, -1, -1, -1, 
	5, -1, 5, 5, 5, 5, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 
	5, 5, 5, 5, 5};


- (id) initWithRecognizer:(ANTLRBaseRecognizer *) theRecognizer
{
	if ((self = [super initWithRecognizer:theRecognizer]) != nil) {
		eot = GrammarFilterLexerdfa13_eot;
		eof = GrammarFilterLexerdfa13_eof;
		min = GrammarFilterLexerdfa13_min;
		max = GrammarFilterLexerdfa13_max;
		accept = GrammarFilterLexerdfa13_accept;
		special = GrammarFilterLexerdfa13_special;
		if (!(transition = calloc(24, sizeof(void*)))) {
			[self release];
			return nil;
		}
		transition[0] = GrammarFilterLexerdfa13_transition9;
		transition[1] = GrammarFilterLexerdfa13_transition10;
		transition[2] = GrammarFilterLexerdfa13_transition;
		transition[3] = GrammarFilterLexerdfa13_transition4;
		transition[4] = GrammarFilterLexerdfa13_transition7;
		transition[5] = GrammarFilterLexerdfa13_transition;
		transition[6] = GrammarFilterLexerdfa13_transition;
		transition[7] = GrammarFilterLexerdfa13_transition;
		transition[8] = GrammarFilterLexerdfa13_transition2;
		transition[9] = GrammarFilterLexerdfa13_transition17;
		transition[10] = GrammarFilterLexerdfa13_transition12;
		transition[11] = GrammarFilterLexerdfa13_transition6;
		transition[12] = GrammarFilterLexerdfa13_transition3;
		transition[13] = GrammarFilterLexerdfa13_transition8;
		transition[14] = GrammarFilterLexerdfa13_transition13;
		transition[15] = GrammarFilterLexerdfa13_transition0;
		transition[16] = GrammarFilterLexerdfa13_transition14;
		transition[17] = GrammarFilterLexerdfa13_transition16;
		transition[18] = GrammarFilterLexerdfa13_transition5;
		transition[19] = GrammarFilterLexerdfa13_transition5;
		transition[20] = GrammarFilterLexerdfa13_transition15;
		transition[21] = GrammarFilterLexerdfa13_transition1;
		transition[22] = GrammarFilterLexerdfa13_transition11;
		transition[23] = GrammarFilterLexerdfa13_transition;
	}
	return self;
}

- (int) specialStateTransition:(int) s
{
	int _s = s;
	switch ( s ) {
 				case 0 : 
 				[[recognizer input] rewind];
 				s = -1;
 				if ( ([self evaluateSyntacticPredicate:@selector(synpred3)]) ) {s = 23;}

 				else if ( (YES) ) {s = 5;}

 				if ( s>=0 ) return s;
 				break;
	}
	if ([recognizer isBacktracking]) {
		[recognizer setIsFailed:YES];
		return -1;
	}
	ANTLRNoViableAltException *nvae = [ANTLRNoViableAltException exceptionWithDecision:13 state:_s stream:[recognizer input]];
 
	@throw nvae;
}

- (void) dealloc
{
	free(transition);
	[super dealloc];
}

- (NSString *) description
{
	return @"()* loopback of 39:3: ( ( ( WS )? '//' )=> SL_COMMENT | ( ( WS )? '/*' )=> COMMENT | ( ( WS )? 'tokenVocab' )=> ( WS )? 'tokenVocab' ( WS )? '=' ( WS )? tokenVocab= ID ( WS )? ';' | ( WS )? ID ( WS )? '=' ( WS )? ID ( WS )? ';' )*";
}

@end



/** As per Terence: No returns for lexer rules!
#pragma mark Rule return scopes start
#pragma mark Rule return scopes end
*/
@implementation GrammarFilterLexer


- (void) setDelegate:(id)theDelegate
{
	delegate = theDelegate;	// not retained, will always be the object creating this lexer!
}


- (id) initWithCharStream:(id<ANTLRCharStream>)anInput
{
	if (nil!=(self = [super initWithCharStream:anInput])) {



		dfa13 = [[GrammarFilterLexerDFA13 alloc] initWithRecognizer:self];
	}
	return self;
}

- (void) dealloc
{
	[dfa13 release];
	[super dealloc];
}

- (ANTLRToken *) nextToken
{
	[self setToken:nil];
    tokenStartCharIndex = [self charIndex];
    while (YES) {
        if ( [input LA:1] == ANTLRCharStreamEOF ) {
            return nil; // should really be a +eofToken call here -> go figure
        }
        @try {
            int m = [input mark];
            backtracking = 1;
            failed = NO;
            [self mTokens];
            backtracking = 0;
            [input rewind:m];
            if ( failed ) {
                [input consume]; 
            } else {
                [self mTokens];
                return token;
            }
        }
        @catch (ANTLRRecognitionException *re) {
            // shouldn't happen in backtracking mode, but...
            [self reportError:re];
            [self recover:re];
        }
    }
}

- (void) mGRAMMAR
{
	ANTLRToken * _grammarType = nil;
	ANTLRToken * _grammarName = nil;

	@try {
		int _type = GrammarFilterLexer_GRAMMAR;
		int _start = [self charIndex];
		int _line = [self line];
		int _charPosition = [self charPositionInLine];
		int _channel = [ANTLRToken defaultChannel];
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:25:4: ( (grammarType= GRAMMAR_TYPE WS | ) 'grammar' WS grammarName= ID ( WS )? ';' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:25:4: (grammarType= GRAMMAR_TYPE WS | ) 'grammar' WS grammarName= ID ( WS )? ';' // alt
		{
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:25:4: (grammarType= GRAMMAR_TYPE WS | ) // block
		int alt1=2;
		{
			int LA1_0 = [input LA:1];
			if ( LA1_0=='l'||LA1_0=='p'||LA1_0=='t' ) {
				alt1 = 1;
			}
			else if ( LA1_0=='g' ) {
				alt1 = 2;
			}
		else {
			if (failed) return ;
		    ANTLRNoViableAltException *nvae = [ANTLRNoViableAltException exceptionWithDecision:1 state:0 stream:input];
			@throw nvae;
			}
		}
		switch (alt1) {
			case 1 :
			    // /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:25:6: grammarType= GRAMMAR_TYPE WS // alt
			    {
			    int _grammarTypeStart = [self charIndex];
			    [self mGRAMMAR_TYPE];
			    if (failed) return ;

			    _grammarType = [[ANTLRCommonToken alloc] initWithInput:input tokenType:ANTLRTokenTypeInvalid channel:ANTLRTokenChannelDefault start:_grammarTypeStart stop:[self charIndex]];
			    [_grammarType setLine:[self line]];
			    if ( backtracking==1 ) {
			      [delegate setGrammarType:[_grammarType text]]; 
			    }
			    [self mWS];
			    if (failed) return ;


			    }
			    break;
			case 2 :
			    // /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:26:53:  // alt
			    {
			    if ( backtracking==1 ) {
			      [delegate setGrammarType:@"parser"]; [delegate setIsCombinedGrammar:NO]; 
			    }

			    }
			    break;

		}

		[self matchString:@"grammar"];
		if (failed) return ;

		[self mWS];
		if (failed) return ;

		int _grammarNameStart = [self charIndex];
		[self mID];
		if (failed) return ;

		_grammarName = [[ANTLRCommonToken alloc] initWithInput:input tokenType:ANTLRTokenTypeInvalid channel:ANTLRTokenChannelDefault start:_grammarNameStart stop:[self charIndex]];
		[_grammarName setLine:[self line]];
		if ( backtracking==1 ) {
		   [delegate setGrammarName:[_grammarName text]]; 
		}
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:28:80: ( WS )? // block
		int alt2=2;
		{
			int LA2_0 = [input LA:1];
			if ( (LA2_0>='\t' && LA2_0<='\n')||LA2_0==' ' ) {
				alt2 = 1;
			}
		}
		switch (alt2) {
			case 1 :
			    // /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:28:80: WS // alt
			    {
			    [self mWS];
			    if (failed) return ;


			    }
			    break;

		}

		[self matchChar:';'];
		if (failed) return ;


		}

		if ( token == nil ) { [self emitTokenWithType:_type line:_line charPosition:_charPosition channel:_channel start:_start stop:[self charIndex]];}
	}
	@finally {
        // rule cleanup
		// token labels
		[_grammarType release];
		[_grammarName release];
		// token+rule list labels
		// rule labels
		// rule refs in alts with rewrites

		if ( backtracking == 0 ) {
		}
	}
	return;
}
// $ANTLR end GRAMMAR


- (void) mGRAMMAR_TYPE
{
	@try {
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:33:5: ( ( 'lexer' | 'parser' | 'tree' ) ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:33:5: ( 'lexer' | 'parser' | 'tree' ) // alt
		{
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:33:5: ( 'lexer' | 'parser' | 'tree' ) // block
		int alt3=3;
		switch ([input LA:1]) {
			case 'l':
				alt3 = 1;
				break;
			case 'p':
				alt3 = 2;
				break;
			case 't':
				alt3 = 3;
				break;
		default:
		 {
			if (failed) return ;
		    ANTLRNoViableAltException *nvae = [ANTLRNoViableAltException exceptionWithDecision:3 state:0 stream:input];
			@throw nvae;

			}}
		switch (alt3) {
			case 1 :
			    // /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:33:6: 'lexer' // alt
			    {
			    [self matchString:@"lexer"];
			    if (failed) return ;


			    }
			    break;
			case 2 :
			    // /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:33:14: 'parser' // alt
			    {
			    [self matchString:@"parser"];
			    if (failed) return ;


			    }
			    break;
			case 3 :
			    // /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:33:23: 'tree' // alt
			    {
			    [self matchString:@"tree"];
			    if (failed) return ;


			    }
			    break;

		}


		}

	}
	@finally {
        // rule cleanup
		// token labels
		// token+rule list labels
		// rule labels
		// rule refs in alts with rewrites

		if ( backtracking == 0 ) {
		}
	}
	return;
}
// $ANTLR end GRAMMAR_TYPE


- (void) mOPTIONS
{
	ANTLRToken * _tokenVocab = nil;

	@try {
		int _type = GrammarFilterLexer_OPTIONS;
		int _start = [self charIndex];
		int _line = [self line];
		int _charPosition = [self charPositionInLine];
		int _channel = [ANTLRToken defaultChannel];
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:38:4: ( 'options' ( WS )? '{' ( ( ( WS )? '//' )=> SL_COMMENT | ( ( WS )? '/*' )=> COMMENT | ( ( WS )? 'tokenVocab' )=> ( WS )? 'tokenVocab' ( WS )? '=' ( WS )? tokenVocab= ID ( WS )? ';' | ( WS )? ID ( WS )? '=' ( WS )? ID ( WS )? ';' )* ( WS )? '}' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:38:4: 'options' ( WS )? '{' ( ( ( WS )? '//' )=> SL_COMMENT | ( ( WS )? '/*' )=> COMMENT | ( ( WS )? 'tokenVocab' )=> ( WS )? 'tokenVocab' ( WS )? '=' ( WS )? tokenVocab= ID ( WS )? ';' | ( WS )? ID ( WS )? '=' ( WS )? ID ( WS )? ';' )* ( WS )? '}' // alt
		{
		[self matchString:@"options"];
		if (failed) return ;

		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:38:14: ( WS )? // block
		int alt4=2;
		{
			int LA4_0 = [input LA:1];
			if ( (LA4_0>='\t' && LA4_0<='\n')||LA4_0==' ' ) {
				alt4 = 1;
			}
		}
		switch (alt4) {
			case 1 :
			    // /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Xcode plugin/GrammarFilter.g:38:14: WS // alt
			    {
			    [self mWS];
			    if (failed) return ;


			    }
			    break;

		}