arabica/include/XSLT/impl/xslt_key.hpp

96 lines
2.3 KiB
C++

#ifndef ARABICA_XSLT_KEY_HPP
#define ARABICA_XSLT_KEY_HPP
namespace Arabica
{
namespace XSLT
{
class Key
{
public:
typedef std::vector<Arabica::XPath::MatchExpr<std::string> > MatchExprList;
Key(MatchExprList& matches,
Arabica::XPath::XPathExpression<std::string>& use) :
matches_(matches),
use_(use),
populated_(false)
{
} // Key
Arabica::XPath::NodeSet<std::string> lookup(const std::string& value) const
{
if(!populated_)
populate();
NodeMap::const_iterator f = nodes_.find(value);
if(f == nodes_.end())
return Arabica::XPath::NodeSet<std::string>(0);
return f->second;
} // lookup
private:
void populate() const
{
std::cerr << "Populating key map " << std::endl;
populated_ = true;
} // populate
MatchExprList matches_;
Arabica::XPath::XPathExpression<std::string> use_;
mutable bool populated_;
typedef std::map<std::string, Arabica::XPath::NodeSet<std::string> > NodeMap;
NodeMap nodes_;
}; // class Key
class DeclaredKeys
{
public:
DeclaredKeys() { }
~DeclaredKeys()
{
for(Keys::const_iterator i = keys_.begin(), ie = keys_.end(); i != ie; ++i)
for(KeyList::const_iterator k = i->second.begin(), ke = i->second.end(); k != ke; ++k)
delete (*k);
} // ~DeclaredKeys
void add(const std::pair<std::string, std::string>& name, Key* key)
{
keys_[name].push_back(key);
} // add_key
Arabica::XPath::NodeSet<std::string> lookup(const std::pair<std::string, std::string>& name,
const std::string& id) const
{
const Keys::const_iterator k = keys_.find(name);
if(k == keys_.end())
throw SAX::SAXException("No key named '" + name.second + "' has been defined.");
//if(k->second.size() == 0)
return k->second[0]->lookup(id);
//Arabica::XPath::NodeSet<std::string> nodes;
//for(KeyList::const_iterator k = i->second.begin(), ke = i->second.end(); k != ke; ++k)
//nodes.a
//return k->second.lookup(id);
} // lookup
private:
typedef std::vector<Key*> KeyList;
typedef std::map<std::pair<std::string, std::string>, KeyList> Keys;
Keys keys_;
DeclaredKeys(const DeclaredKeys&);
DeclaredKeys& operator=(const DeclaredKeys&);
bool operator==(const DeclaredKeys&) const;
}; // class DeclaredKeys
} // namespace XSLT
} // namespace Arabica
#endif