testlexer.m

antlr最新版本V3源代码

// $ANTLR 3.0b5 /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/lexertest-simple/Test.g 2006-11-12 22:57:12

#import "TestLexer.h"
#pragma mark Cyclic DFAs

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


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

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


- (void) mID
{
	@try {
		ruleNestingLevel++;
		int _type = TestLexer_ID;
		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/Framework/examples/lexertest-simple/Test.g:8:6: ( LETTER ( LETTER | DIGIT )* ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/lexertest-simple/Test.g:8:6: LETTER ( LETTER | DIGIT )* // alt
		{
		[self mLETTER];


		do {
		    int alt1=3;
		    {
		    	int LA1_0 = [input LA:1];
		    	if ( (LA1_0>='A' && LA1_0<='Z')||(LA1_0>='a' && LA1_0<='z') ) {
		    		alt1 = 1;
		    	}
		    	else if ( (LA1_0>='0' && LA1_0<='9') ) {
		    		alt1 = 2;
		    	}

		    }
		    switch (alt1) {
			case 1 :
			    // /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/lexertest-simple/Test.g:8:14: LETTER // alt
			    {
			    [self mLETTER];



			    }
			    break;
			case 2 :
			    // /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/lexertest-simple/Test.g:8:23: DIGIT // alt
			    {
			    [self mDIGIT];



			    }
			    break;

			default :
			    goto loop1;
		    }
		} while (YES); loop1: ;


		}

		if ( token == nil && ruleNestingLevel == 1) { [self emitTokenWithType:_type line:_line charPosition:_charPosition channel:_channel start:_start stop:[self charIndex]];}
	}
	@finally {
		ruleNestingLevel--;
        // rule cleanup
		// token labels
		// token+rule list labels
		// rule labels
		// rule refs in alts with rewrites

	}
	return;
}
// $ANTLR end ID


- (void) mDIGIT
{
	@try {
		ruleNestingLevel++;
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/lexertest-simple/Test.g:11:18: ( '0' .. '9' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/lexertest-simple/Test.g:11:18: '0' .. '9' // alt
		{
		[self matchRangeFromChar:'0' to:'9'];

		}

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

	}
	return;
}
// $ANTLR end DIGIT


- (void) mLETTER
{
	@try {
		ruleNestingLevel++;
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/lexertest-simple/Test.g:15:2: ( ('a'..'z'|'A'..'Z')) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/lexertest-simple/Test.g:15:4: ('a'..'z'|'A'..'Z') // alt
		{
		if (([input LA:1]>='A' && [input LA:1]<='Z')||([input LA:1]>='a' && [input LA:1]<='z')) {
			[input consume];

		} else {
			ANTLRMismatchedSetException *mse = [ANTLRMismatchedSetException exceptionWithSet:nil stream:input];
			[self recover:mse];	@throw mse;
		}


		}

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

	}
	return;
}
// $ANTLR end LETTER

- (void) mTokens
{
    // /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/lexertest-simple/Test.g:1:10: ( ID ) // ruleBlockSingleAlt
    // /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/lexertest-simple/Test.g:1:10: ID // alt
    {
    [self mID];



    }


}

@end