Antlr4 如何让组件在缺少令牌时停止

Question

我有一个 java 项目，使用我自己的语法，为它制作一个编译器：

page p1
{
        //some code

}
Controller c1 controls p1
{
       //some code
}

page p2
{
       //some code
}

现在，如果我删除右花括号，它会给我一个错误，并继续识别并将第二页的右花括号识别为第一页，这会导致我以后出现很多问题我的解析器：

component :   page  controller*;
page : PAGE PAGE_ID PAGE_OPEN page_body PAGE_CLOSE;
controller : CONTROLLER  CONTROLLER_ID CNTRLS  CONTROLLER_ID CONTROLLER_OPEN controller_body CONTROLLER_CLOSE ;

词法分析器：

mode Page;
PAGE_WS : WS ->skip;
PAGE_ID : ID;
PAGE_SPACE : WS -> skip;
PAGE_OPEN: OPEN_BRACKETS ->pushMode(PageBody);

mode PageBody;
PAGE_BODY_SPACE : WS -> skip;
PAGE_SC: SEMICOLON;
EQ : EQUALS;
...
PAGE_CLOSE: CLOSE_BRACKETS -> popMode,popMode;

错误看起来像：

line 7:0 token recognition error at: 'C'
line 7:1 token recognition error at: 'o'
line 7:2 token recognition error at: 'n'
line 7:3 token recognition error at: 't'
line 7:4 token recognition error at: 'r'
line 7:5 token recognition error at: 'o'
line 7:6 token recognition error at: 'l'
line 7:7 token recognition error at: 'l'
line 7:8 token recognition error at: 'e'
line 7:9 token recognition error at: 'r'
line 7:11 token recognition error at: 'c1'
line 7:14 token recognition error at: 'co'
line 7:16 token recognition error at: 'n'
line 7:17 token recognition error at: 't'
line 7:18 token recognition error at: 'r'
line 7:19 token recognition error at: 'o'
line 7:20 token recognition error at: 'l'
line 7:21 token recognition error at: 's '
line 7:23 token recognition error at: 'p1'
line 8:0 token recognition error at: '{'

请帮忙:)

Answer 1

将此添加到 pagebody 得到了我想要的东西：

OTHERS
 : .*? -> popMode,popMode,channel(HIDDEN)
 ;

干杯:)

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