David Abrahams wrote:
on Wed Jul 11 2007, Mathias Gaunard <mathias.gaunard-AT-etu.u-bordeaux1.fr> wrote:
David Abrahams wrote:
I find XML horrible to read, however I find most of the ^^^^^^^^^^^^^^^^^^^^^^^^^^^ procedural code I've seen for manipulating it even more horrible.
I would like to see a more declarative syntax for much of this stuff.
root.push_front( tag("articleinfo")[ title ? (comment("This title was moved"), title) : NULL , tag("author")[ tag("firstname")["Joe"], tag("surname")["Random"] ] ] )
Interesting. It doesn't look a lot like raw XML
Maybe that's the point ;-)
but it certainly integrates better into C++.
That too.
You're optimizing the wrong case, a toy example. It obviously depends on the actual XML schema, but I typically average one Node::add_element call per function when the format is sensible and can be mapped to C++. void add_element( node * p, char const * n, ArticleInfo const & ai ) { node * p2 = p->add_element( n ); add_element( p2, "author", ai.author() ); } void add_element( node * p, char const * n, Author const & a ) { node * p2 = p->add_element( n ); add_element( p2, "firstname", a.firstname() ); add_element( p2, "surname", a.surname() ); } void add_element( node * p, char const * n, std::string const & s ) { node * p2 = p->add_element( n ); p2->add_text( s ); } int main() { ArticleInfo ai( ... ); XmlDocument xd( "test.xml" ); add_element( xd, "articleinfo", ai ); } (this is C++ pseudocode and out of order but you get the point.) This is how we can move to a list of authors: void add_element( node * p, char const * n, ArticleInfo const & ai ) { node * p2 = p->add_element( n ); add_element( p2, "authors", ai.authors() ); } void add_element( node * p, char const * n, vector<Author> const & v ) { node * p2 = p->add_element( n ); for( auto i = v.begin(); i != v.end(); ++i ) { add_element( p2, "author", *i ); } }