Re: [Boost-users] [Property Tree] Latest version and CVS

Thanks for the info. I am not that familiar with XML, but does it have a well-defined typing mechanism. It seems like an XML parser could generate the ptree with typed data. Chris On 9/28/06, Marcin Kalicinski wrote:

Hi Chris,

Un-customized ptree uses (string, string) pairs to hold data. If you are using sandbox-cvs version (i.e. the latest one), it is easy to customize data type to be boost::any. There's even a working example on how to do that in libs/property_tree/examples/custom_data_type.cpp. Once you do that, you can then manually associate types with values.

As for associating types with a values read from a file, I don't see any easy way to do it. How would the parser determine the type of the value that it reads in?

Best regards, Marcin

Uzytkownik "Chris Weed" napisal w wiadomosci news:359e4bf50609272009w7a438eb7u9e1cf56011c69371@mail.gmail.com...

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Marcin, I have looked at the documentation a little bit, and I have a few questions. It is not clear in the documentation if the implementation uses (std::string,boost::any) pairs, but I recall reading something about that being the case. With that set up it seems values inserted in the tree, programmatically, could have type information, but values read from a file could only be string types. I am interested in typing properties read in from a file. Is there a way to associate types with values read from a file. If not that is fine, I can always check if the type is a string and use lexical_cast. Chris