c++ boost xml parser ptree.get function -- doesnot accept white space in node name -

trying content xml file using boost xml parser using c++..

opencv.xml

<opencv_storage>      <labels type_id="opencv-matrix">           <data>0 0 0 0 1 1 0 0</data>      </labels> </opencv_storage> 

c++ code snippet

using boost::property_tree::ptree;     ptree pt;     boost::property_tree::read_xml("opencv.xml", pt);      std::string m_file = pt.get<std::string>("opencv_storage.labels type_id=\"opencv-matrix\".data");      std::cout<<"m_file "<<m_file<<std::endl; 

while executing, program throws exception :

no such node (opencv_storage.labels type_id="opencv-matrix".data) 

i doubt, white space prevails between labels , type_id

thanks in advance, appreciated, since trying used boost.

of course doesn't. whitespace in element names illegal in xml.

what want attributes: parsing xml attributes boost

or, better yet, want use xml parser, here: what xml parser should use in c++?

---

if somehow want use poperty tree (are sure?) here:

• boost::ptree find? or how access deep arrays? c++

the enumerate-path function can - - used xml too, since takes ptree