I think that what is still missing in Boost is a library for reading and
writing XML files. I have such a library, though in rather preliminary
state (encodings support is missing, and also not all of XML constructs are
supported). Anyway, I have used it in some projects for e.g. reading and
writing configuration files. For reading, it uses an iterator, a little bit
similar to istream_iterator. For writing, it uses interface similar to
standard streams. Here you have a code presenting the interface of the
library:
void traverse(
const xml::read_iterator& begin,
const xml::read_iterator& end,
const std::string& spaces)
{
for (xml::read_iterator it = begin; it != end; ++it)
{
if (it->type() == xml::element)
{
std::cout << spaces << it->str() << "\n";
traverse(it->begin(),it->end(),spaces+" ");
}
}
}
int main()
{
// test read_iterator, the output is:
// root
// a
std::istringstream iss("<root><a atr='value'> b </a></root>");
traverse(xml::read_iterator(iss),xml::read_iterator(),"");
// test ostream, the output is:
// <a>
// <b ee='f'/>
// </a>
xml::ostream xos(std::cout);
xos << xml::tag("a") << xml::down <<
xml::tag("b") << xml::attr("ee","f") <<
xml::up;
}
If there will be an interest, I can submit the library code and extend it.
Regards,
Wojtek Surówka
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