无法使用Eclipse调试ANTLR中的简单通道标志

我遵循antlr教程，并编写与教程所述完全相同的代码

$channel = HIDDEN;

它总是给我错误的感觉

Multiple markers:
-(100): syntax error: antlr: MissingTokenException(inserted [@-1,0:0='<missing RPAREN>',<69>,22:41] 
 at channel)
-(100): syntax error: antlr: NoViableAltException(86@[])
-(100): syntax error: antlr: NoViableAltException(75@[])

这是我试图保存它时的错误消息

error(100): /ANTLR 3.x Tutorial/src/sample/Sample.g:22:40: syntax error: antlr: NoViableAltException(86@[])
 |---> WS : (' '| 't' | '\n' | '\r' | 'f' )+ ($channel = HIDDEN;);

error(100): /ANTLR 3.x Tutorial/src/sample/Sample.g:22:41: syntax error: antlr: NoViableAltException(75@[])
 |---> WS : (' '| 't' | '\n' | '\r' | 'f' )+ ($channel = HIDDEN;);

error(100): /ANTLR 3.x Tutorial/src/sample/Sample.g:22:41: syntax error: antlr: MissingTokenException(inserted [@-1,0:0='<missing RPAREN>',<69>,22:40] at channel)
 |---> WS : (' '| 't' | '\n' | '\r' | 'f' )+ ($channel = HIDDEN;);

error(100): /ANTLR 3.x Tutorial/src/sample/Sample.g:22:58: syntax error: antlr: MissingTokenException(inserted [@-1,0:0='<missing EOF>',<-1>,22:57] at ))
 |---> WS : (' '| 't' | '\n' | '\r' | 'f' )+ ($channel = HIDDEN;);

error(10):  internal error: /ANTLR 3.x Tutorial/src/sample/Sample.g : java.lang.IllegalStateException: java.lang.NullPointerException
org.deved.antlride.runtime.AntlrErrorListener$DynamicToken.invokeMethod(AntlrErrorListener.java:59)
org.deved.antlride.runtime.AntlrErrorListener$DynamicToken.getLine(AntlrErrorListener.java:64)
org.deved.antlride.runtime.AntlrErrorListener.report(AntlrErrorListener.java:131)
org.deved.antlride.runtime.AntlrErrorListener.message(AntlrErrorListener.java:113)
org.deved.antlride.runtime.AntlrErrorListener.error(AntlrErrorListener.java:103)
org.antlr.tool.ErrorManager.syntaxError(ErrorManager.java:768)
org.antlr.grammar.v3.AssignTokenTypesWalker.reportError(AssignTokenTypesWalker.java:208)
org.antlr.grammar.v3.AssignTokenTypesWalker.block(AssignTokenTypesWalker.java:2419)
org.antlr.grammar.v3.AssignTokenTypesWalker.ebnf(AssignTokenTypesWalker.java:3439)
org.antlr.grammar.v3.AssignTokenTypesWalker.element(AssignTokenTypesWalker.java:3166)
org.antlr.grammar.v3.AssignTokenTypesWalker.alternative(AssignTokenTypesWalker.java:2483)
org.antlr.grammar.v3.AssignTokenTypesWalker.block(AssignTokenTypesWalker.java:2389)
org.antlr.grammar.v3.AssignTokenTypesWalker.ruleBody(AssignTokenTypesWalker.java:1947)
org.antlr.grammar.v3.AssignTokenTypesWalker.rule(AssignTokenTypesWalker.java:1569)
org.antlr.grammar.v3.AssignTokenTypesWalker.rules(AssignTokenTypesWalker.java:1505)
org.antlr.grammar.v3.AssignTokenTypesWalker.grammarSpec(AssignTokenTypesWalker.java:713)
org.antlr.grammar.v3.AssignTokenTypesWalker.grammar_(AssignTokenTypesWalker.java:383)
org.antlr.tool.CompositeGrammar.assignTokenTypes(CompositeGrammar.java:337)
org.antlr.Tool.process(Tool.java:462)
org.deved.antlride.runtime.Tool2.main(Tool2.java:24)
5 errors

BUILD FAIL
Total time: 879 milliseconds

error（100）：/ANTLR 3.x Tutorial/src/sample/sample.g:22:40:语法错误：ANTLR:NoViableAltException（86@[]
|--->WS:（''t'.'\n'.'\r'.'f'）+（$channel=HIDDEN；）；
错误（100）：/ANTLR 3.x Tutorial/src/sample/sample.g:22:41:语法错误：ANTLR:NoViableAltException（75@[]
|--->WS:（''t'.'\n'.'\r'.'f'）+（$channel=HIDDEN；）；
错误（100）：/ANTLR 3.x Tutorial/src/sample/sample.g:22:41:语法错误：ANTLR:MissingTokenException（在通道处插入[@-1,0:0=''，22:40]
|--->WS:（''t'.'\n'.'\r'.'f'）+（$channel=HIDDEN；）；
错误（100）：/ANTLR 3.x Tutorial/src/sample/sample.g:22:58:语法错误：ANTLR:MissingTokenException（插入[@-1,0:0=”，22:57]at））
|--->WS:（''t'.'\n'.'\r'.'f'）+（$channel=HIDDEN；）；
错误（10）：内部错误：/ANTLR 3.x Tutorial/src/sample/sample.g:java.lang.IllegalStateException:java.lang.NullPointerException
org.deved.antlride.runtime.antlErrorListener$DynamicToken.invokeMethod（antlErrorListener.java:59）
org.deved.antlride.runtime.antlErrorListener$DynamicToken.getLine（antlErrorListener.java:64）
org.deved.antlride.runtime.antlErrorListener.report（antlErrorListener.java:131）
org.deved.antlride.runtime.antlErrorListener.message（antlErrorListener.java:113）
org.deved.antlride.runtime.antlErrorListener.error（antlErrorListener.java:103）
org.antlr.tool.ErrorManager.syntaxError（ErrorManager.java:768）
org.antlr.grammar.v3.AssignTokenTypesWalker.reportError（AssignTokenTypesWalker.java:208）
org.antlr.grammar.v3.AssignTokenTypesWalker.block（AssignTokenTypesWalker.java:2419）
org.antlr.grammar.v3.AssignTokenTypesWalker.ebnf（AssignTokenTypesWalker.java:3439）
org.antlr.grammar.v3.AssignTokenTypesWalker.element（AssignTokenTypesWalker.java:3166）
org.antlr.grammar.v3.AssignTokenTypesWalker.alternative（AssignTokenTypesWalker.java:2483）
org.antlr.grammar.v3.AssignTokenTypesWalker.block（AssignTokenTypesWalker.java:2389）
org.antlr.grammar.v3.AssignTokenTypesWalker.ruleBody（AssignTokenTypesWalker.java:1947）
org.antlr.grammar.v3.AssignTokenTypesWalker.rule（AssignTokenTypesWalker.java:1569）
org.antlr.grammar.v3.AssignTokenTypesWalker.rules（AssignTokenTypesWalker.java:1505）
org.antlr.grammar.v3.AssignTokenTypesWalker.grammarSpec（AssignTokenTypesWalker.java:713）
org.antlr.grammar.v3.AssignTokenTypesWalker.grammar_382;（AssignTokenTypesWalker.java:383）
org.antlr.tool.CompositeGrammar.assignTokenTypes（CompositeGrammar.java:337）
org.antlr.Tool.process（Tool.java:462）
org.deved.antlride.runtime.Tool2.main（Tool2.java:24）
5个错误
构建失败
总时间：879毫秒

---

谢谢。

刚刚解决。。我需要用“{}”而不是“（）” 对不起，这个简单的问题

grammar Sample;

options {
  language = Java;
}

@header {
  package a.b.c;
}

@lexer::header {
  package a.b.c;
}

programe
    :   'program' IDENT '=' 
        'begin'
        'end' IDENT '.'
    ;

IDENT:'a'..'z'+;
WS : (' '| 't' | '\n' | '\r' | 'f' )+ ($channel = HIDDEN;); 

error(100): /ANTLR 3.x Tutorial/src/sample/Sample.g:22:40: syntax error: antlr: NoViableAltException(86@[])
 |---> WS : (' '| 't' | '\n' | '\r' | 'f' )+ ($channel = HIDDEN;);

error(100): /ANTLR 3.x Tutorial/src/sample/Sample.g:22:41: syntax error: antlr: NoViableAltException(75@[])
 |---> WS : (' '| 't' | '\n' | '\r' | 'f' )+ ($channel = HIDDEN;);

error(100): /ANTLR 3.x Tutorial/src/sample/Sample.g:22:41: syntax error: antlr: MissingTokenException(inserted [@-1,0:0='<missing RPAREN>',<69>,22:40] at channel)
 |---> WS : (' '| 't' | '\n' | '\r' | 'f' )+ ($channel = HIDDEN;);

error(100): /ANTLR 3.x Tutorial/src/sample/Sample.g:22:58: syntax error: antlr: MissingTokenException(inserted [@-1,0:0='<missing EOF>',<-1>,22:57] at ))
 |---> WS : (' '| 't' | '\n' | '\r' | 'f' )+ ($channel = HIDDEN;);

error(10):  internal error: /ANTLR 3.x Tutorial/src/sample/Sample.g : java.lang.IllegalStateException: java.lang.NullPointerException
org.deved.antlride.runtime.AntlrErrorListener$DynamicToken.invokeMethod(AntlrErrorListener.java:59)
org.deved.antlride.runtime.AntlrErrorListener$DynamicToken.getLine(AntlrErrorListener.java:64)
org.deved.antlride.runtime.AntlrErrorListener.report(AntlrErrorListener.java:131)
org.deved.antlride.runtime.AntlrErrorListener.message(AntlrErrorListener.java:113)
org.deved.antlride.runtime.AntlrErrorListener.error(AntlrErrorListener.java:103)
org.antlr.tool.ErrorManager.syntaxError(ErrorManager.java:768)
org.antlr.grammar.v3.AssignTokenTypesWalker.reportError(AssignTokenTypesWalker.java:208)
org.antlr.grammar.v3.AssignTokenTypesWalker.block(AssignTokenTypesWalker.java:2419)
org.antlr.grammar.v3.AssignTokenTypesWalker.ebnf(AssignTokenTypesWalker.java:3439)
org.antlr.grammar.v3.AssignTokenTypesWalker.element(AssignTokenTypesWalker.java:3166)
org.antlr.grammar.v3.AssignTokenTypesWalker.alternative(AssignTokenTypesWalker.java:2483)
org.antlr.grammar.v3.AssignTokenTypesWalker.block(AssignTokenTypesWalker.java:2389)
org.antlr.grammar.v3.AssignTokenTypesWalker.ruleBody(AssignTokenTypesWalker.java:1947)
org.antlr.grammar.v3.AssignTokenTypesWalker.rule(AssignTokenTypesWalker.java:1569)
org.antlr.grammar.v3.AssignTokenTypesWalker.rules(AssignTokenTypesWalker.java:1505)
org.antlr.grammar.v3.AssignTokenTypesWalker.grammarSpec(AssignTokenTypesWalker.java:713)
org.antlr.grammar.v3.AssignTokenTypesWalker.grammar_(AssignTokenTypesWalker.java:383)
org.antlr.tool.CompositeGrammar.assignTokenTypes(CompositeGrammar.java:337)
org.antlr.Tool.process(Tool.java:462)
org.deved.antlride.runtime.Tool2.main(Tool2.java:24)
5 errors

BUILD FAIL
Total time: 879 milliseconds