[Property Tree] Latest version and CVS

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Chris Weed

27 Sep 2006 27 Sep '06

3:47 p.m.

Hi, I am interested in using the new Property Tree library, and I was wondering where I can get the latest version. Chris

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Marcin Kalicinski

27 Sep 27 Sep

11:43 p.m.

Hi Chris, The latest version is always in boost-sandbox CVS. You can access that anonymously - see instructions at http://boost.org/more/mailing_lists.htm#sandbox. Sandbox version is much improved over what is in boost vault (which is the version used for review), but the documentation is yet lagging behind, so you might encounter a couple of surprises. The good news is that the basic interface and usage have not changed. Marcin ----- Original Message ----- From: "Chris Weed" Newsgroups: gmane.comp.lib.boost.user Sent: Wednesday, September 27, 2006 4:47 PM Subject: [Property Tree] Latest version and CVS

...

Hi, I am interested in using the new Property Tree library, and I was wondering where I can get the latest version. Chris

Chris Weed

28 Sep 28 Sep

1:27 a.m.

Great, I am really excited to use it. Thanks, Chris On 9/27/06, Marcin Kalicinski wrote:

...

Hi Chris,

The latest version is always in boost-sandbox CVS. You can access that anonymously - see instructions at http://boost.org/more/mailing_lists.htm#sandbox. Sandbox version is much improved over what is in boost vault (which is the version used for review), but the documentation is yet lagging behind, so you might encounter a couple of surprises. The good news is that the basic interface and usage have not changed.

Marcin

----- Original Message ----- From: "Chris Weed" Newsgroups: gmane.comp.lib.boost.user Sent: Wednesday, September 27, 2006 4:47 PM Subject: [Property Tree] Latest version and CVS

...
Hi, I am interested in using the new Property Tree library, and I was wondering where I can get the latest version. Chris

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

Chris Weed

3:09 a.m.

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 On 9/27/06, Marcin Kalicinski wrote:

...

Hi Chris,

The latest version is always in boost-sandbox CVS. You can access that anonymously - see instructions at http://boost.org/more/mailing_lists.htm#sandbox. Sandbox version is much improved over what is in boost vault (which is the version used for review), but the documentation is yet lagging behind, so you might encounter a couple of surprises. The good news is that the basic interface and usage have not changed.

Marcin

----- Original Message ----- From: "Chris Weed" Newsgroups: gmane.comp.lib.boost.user Sent: Wednesday, September 27, 2006 4:47 PM Subject: [Property Tree] Latest version and CVS

...
Hi, I am interested in using the new Property Tree library, and I was wondering where I can get the latest version. Chris

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

Marcin Kalicinski

12:04 p.m.

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...

...

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

On 9/27/06, Marcin Kalicinski wrote:

...
Hi Chris,

The latest version is always in boost-sandbox CVS. You can access that anonymously - see instructions at http://boost.org/more/mailing_lists.htm#sandbox. Sandbox version is much improved over what is in boost vault (which is the version used for review), but the documentation is yet lagging behind, so you might encounter a couple of surprises. The good news is that the basic interface and usage have not changed.

Marcin

----- Original Message ----- From: "Chris Weed" Newsgroups: gmane.comp.lib.boost.user Sent: Wednesday, September 27, 2006 4:47 PM Subject: [Property Tree] Latest version and CVS

...
Hi, I am interested in using the new Property Tree library, and I was wondering where I can get the latest version. Chris

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

Chris Weed

1 Oct 1 Oct

5:02 p.m.

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...

...
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

Jeff Garland

5:22 p.m.

Chris Weed wrote:

...

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.

Sounds like you need to look at something like this -- http://codesynthesis.com/projects/xsd/documentation/cxx/tree/manual/ It's a tool that generates a C++ typed interface based on an xml schema. I haven't used it so I'm not able to fully recommend it....but it looks like a useful approach that matches what you are asking for. Jeff

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Chris Weed
Jeff Garland
Marcin Kalicinski