simpleclexer.m

ANTLR(ANother Tool for Language Recognition)它是这样的一种工具

// $ANTLR 3.0b5 /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g 2006-11-12 21:48:44

#import "SimpleCLexer.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 SimpleCLexer


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

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


- (void) mT7
{
	@try {
		int _type = SimpleCLexer_T7;
		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/LL-star/SimpleC.g:7:6: ( ';' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:7:6: ';' // alt
		{
		[self matchChar:';'];



		}

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

	}
	return;
}
// $ANTLR end T7


- (void) mT8
{
	@try {
		int _type = SimpleCLexer_T8;
		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/LL-star/SimpleC.g:8:6: ( '(' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:8:6: '(' // alt
		{
		[self matchChar:'('];



		}

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

	}
	return;
}
// $ANTLR end T8


- (void) mT9
{
	@try {
		int _type = SimpleCLexer_T9;
		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/LL-star/SimpleC.g:9:6: ( ',' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:9:6: ',' // alt
		{
		[self matchChar:','];



		}

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

	}
	return;
}
// $ANTLR end T9


- (void) mT10
{
	@try {
		int _type = SimpleCLexer_T10;
		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/LL-star/SimpleC.g:10:7: ( ')' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:10:7: ')' // alt
		{
		[self matchChar:')'];



		}

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

	}
	return;
}
// $ANTLR end T10


- (void) mT11
{
	@try {
		int _type = SimpleCLexer_T11;
		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/LL-star/SimpleC.g:11:7: ( 'int' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:11:7: 'int' // alt
		{
		[self matchString:@"int"];



		}

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

	}
	return;
}
// $ANTLR end T11


- (void) mT12
{
	@try {
		int _type = SimpleCLexer_T12;
		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/LL-star/SimpleC.g:12:7: ( 'char' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:12:7: 'char' // alt
		{
		[self matchString:@"char"];



		}

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

	}
	return;
}
// $ANTLR end T12


- (void) mT13
{
	@try {
		int _type = SimpleCLexer_T13;
		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/LL-star/SimpleC.g:13:7: ( 'void' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:13:7: 'void' // alt
		{
		[self matchString:@"void"];



		}

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

	}
	return;
}
// $ANTLR end T13


- (void) mT14
{
	@try {
		int _type = SimpleCLexer_T14;
		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/LL-star/SimpleC.g:14:7: ( '{' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:14:7: '{' // alt
		{
		[self matchChar:'{'];



		}

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

	}
	return;
}
// $ANTLR end T14


- (void) mT15
{
	@try {
		int _type = SimpleCLexer_T15;
		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/LL-star/SimpleC.g:15:7: ( '}' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:15:7: '}' // alt
		{
		[self matchChar:'}'];



		}

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

	}
	return;
}
// $ANTLR end T15


- (void) mT16
{
	@try {
		int _type = SimpleCLexer_T16;
		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/LL-star/SimpleC.g:16:7: ( 'for' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:16:7: 'for' // alt
		{
		[self matchString:@"for"];



		}

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

	}
	return;
}
// $ANTLR end T16


- (void) mT17
{
	@try {
		int _type = SimpleCLexer_T17;
		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/LL-star/SimpleC.g:17:7: ( '=' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:17:7: '=' // alt
		{
		[self matchChar:'='];



		}

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

	}
	return;
}
// $ANTLR end T17


- (void) mT18
{
	@try {
		int _type = SimpleCLexer_T18;
		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/LL-star/SimpleC.g:18:7: ( '==' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:18:7: '==' // alt
		{
		[self matchString:@"=="];



		}

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

	}
	return;
}
// $ANTLR end T18


- (void) mT19
{
	@try {
		int _type = SimpleCLexer_T19;
		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/LL-star/SimpleC.g:19:7: ( '<' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:19:7: '<' // alt
		{
		[self matchChar:'<'];



		}

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

	}
	return;
}
// $ANTLR end T19


- (void) mT20
{
	@try {
		int _type = SimpleCLexer_T20;
		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/LL-star/SimpleC.g:20:7: ( '+' ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:20:7: '+' // alt
		{
		[self matchChar:'+'];



		}

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

	}
	return;
}
// $ANTLR end T20


- (void) mID
{
	@try {
		int _type = SimpleCLexer_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/LL-star/SimpleC.g:94:9: ( ('a'..'z'|'A'..'Z'|'_') ( ('a'..'z'|'A'..'Z'|'0'..'9'|'_'))* ) // ruleBlockSingleAlt
		// /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:94:9: ('a'..'z'|'A'..'Z'|'_') ( ('a'..'z'|'A'..'Z'|'0'..'9'|'_'))* // alt
		{
		if (([input LA:1]>='A' && [input LA:1]<='Z')||[input LA:1]=='_'||([input LA:1]>='a' && [input LA:1]<='z')) {
			[input consume];

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

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

		    }
		    switch (alt1) {
			case 1 :
			    // /Users/kroepke/Projects/antlr3/code/antlr/main/lib/ObjC/Framework/examples/LL-star/SimpleC.g:94:34: ('a'..'z'|'A'..'Z'|'0'..'9'|'_') // alt
			    {
			    if (([input LA:1]>='0' && [input LA:1]<='9')||([input LA:1]>='A' && [input LA:1]<='Z')||[input LA:1]=='_'||([input LA:1]>='a' && [input LA:1]<='z')) {
			    	[input consume];

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


			    }
			    break;

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


		}