[antlr-interest] C++ grammar - namespaces

[Terence Parr]

On Wednesday, March 5, 2003, at 05:44  AM, David Wigg wrote:
> In particular I hope I have now accounted for "namespaces" as
> described on pages 634-638 in the Second Edition of Bjarne
> Stroustrup's book, The C++ Programming Language, as follows,
>
> decl_namespace   // alternative in external-declaration
>      :	
>          "namespace"
>          (
>              (ns:ID{_sc = scTYPEDEF;
>                     declaratorID((ns->getText()).data());}
>              )?
>              LCURLY (external_declaration)* RCURLY
>          |
>              ASSIGNEQUAL qualified_id SEMICOLON {end_of_stmt();}
>          )
>      ;
>
> using_statement   // alternative in declaration
>      :
>          "using"
>          (
>              "namespace" qualified_id  // Using-directive
>          |
>              qualified_id              // Using-declaration
>          )
>          SEMICOLON {end_of_stmt();}
>      ;
>
> However, I still have a problem about the correct type for a
> namespace. The parser works on my test data by using
> declaratorId to set it as a 'typedef' but I think it would be
> better classed as 'class' since it introduces a new scope. What
> do you think?
>
> What type should I use Terence?

HI David,

Hmm...well, C++ is not my strong point anymore.  I think Ric can have 
something to say here.

Terence
--
Co-founder, http://www.jguru.com
Creator, ANTLR Parser Generator: http://www.antlr.org
Lecturer in Comp. Sci., University of San Francisco


 

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