[Spirit-general] Re: spirit xml question

[Joel de G. <jo...@bo...>]

Carl Barron wrote:
> 
> On Oct 6, 2005, at 9:10 AM, Joel de Guzman wrote:
> 
>     grammar works , needs three phoenix actions except to get rid
> of an infinite loop there is one string of chars per tag,  between tags
>  <A>xxx <B>aaa</B>yyy</A> does not parse yet:)
>   adding <xxx/> tags appears to be no real problem.
> 
> struct tag
> {
>     std::string    tag;
>     std::string    data;
>     std::map<std::string,std::string> attribs,
>     std::list<boost::shared_ptr<tag> > children;
>     // + ctors
>  };

I think the proper data structure is:

struct tag
{
     std::string name;
     std::map<std::string, std::string> attributes;
     std::list<variant<tag, std::string> > children;
};

or if you wish to use shared_ptr:

struct tag
{
     std::string name;
     std::map<std::string, std::string> attributes;
     std::list<shared_ptr<variant<tag, std::string> > > children;
};

There can be more than one string per tag, interspersed with
child tags. Example:

<p> text1 <b>text2</b> text3 <i>text4</i> text5 </p>

which will have the pseudo-structure:

tag p
{
     " text1 ",
     tag b { "text2" },
     " text3 ",
     tag i { "text4" },
     " text5 "
}

What am I missing?

Cheers,
-- 
Joel de Guzman
http://www.boost-consulting.com
http://spirit.sf.net