ANTLR语法中是否有保留字列表？

Question

我最近创建了一个ANTLR3解析器规则

options : foo bar;

它没有编译,我花了一些时间才发现这options是一个保留字(AntlrWorks表示错误,但不是为什么).ANTLR中是否有保留字列表,是否有命名规则的最佳实践(这可能有助于避免这种情况)？

Answer 1

ANTLR v3的保留字是:

    Keyword  |  Description
    ---------+--------------------------------------------------------
    scope    |  Dynamically-scoped attribute
    fragment |  lexer rule is a helper rule, not real token for parser
    lexer    |  grammar type
    tree     |  grammar type
    parser   |  grammar type
    grammar  |  grammar header
    returns  |  rule return value(s)
    throws   |  rule throws exception(s)
    catch    |  catch rule exceptions
    finally  |  do this no matter what
    options  |  grammar or rule options
    tokens   |  can add tokens with this; usually imaginary tokens
    import   |  import grammar(s)

请参阅:https://web.archive.org/web/20120314155217/http://www.antlr.org/wiki/display/ANTLR3/ANTLR+Cheat+Sheet(在页面末尾)

不知道解析器规则的"命名约定"(除了它们应该从小写开始,当然不是惯例......).