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// file : examples/cxx/parser/wildcard/driver.cxx
// copyright : not copyrighted - public domain
#include <string>
#include <memory>
#include <iostream>
#include "email-pskel.hxx"
using namespace std;
using xml_schema::ro_string;
class binary_pimpl: public email::binary_pskel,
public xml_schema::base64_binary_pimpl
{
public:
virtual void
name (const string& n)
{
cerr << "binary: " << n << endl;
}
virtual void
mime (const string& t)
{
cerr << "type: " << t << endl
<< endl;
}
virtual void
post_binary ()
{
auto_ptr<xml_schema::buffer> buf (post_base64_binary ());
cerr << "size: " << buf->size () << endl
<< endl;
}
};
class envelope_pimpl: public email::envelope_pskel
{
public:
envelope_pimpl (xml_schema::unsigned_int_pskel& uint_p,
xml_schema::string_pskel& string_p,
email::binary_pskel& binary_p)
: depth_ (0), cur_ (0),
uint_p_ (uint_p), string_p_ (string_p), binary_p_ (binary_p)
{
}
virtual void
to (const string& addr)
{
cerr << "To: " << addr << endl;
}
virtual void
from (const string& addr)
{
cerr << "From: " << addr << endl;
}
virtual void
subject (const string& s)
{
cerr << "Subject: " << s << endl;
}
// Wildcard handling. All wildcard events are routed to these
// four functions. It is our job to dispatch them to the right
// parsers.
//
virtual void
_start_any_element (const ro_string& ns,
const ro_string& name,
const ro_string* type)
{
if (depth_++ > 0)
{
// Nested wildcard element.
//
if (cur_)
cur_->_start_element (ns, name, type);
}
else
{
// Top-level element matched by the any wildcard.
//
if (ns == "http://www.codesynthesis.com/email")
{
if (name == "text")
{
cur_ = &string_p_;
string_p_.pre ();
string_p_._pre_impl ();
}
else if (name == "binary")
{
cur_ = &binary_p_;
binary_p_.pre ();
binary_p_._pre_impl ();
}
}
if (cur_ == 0)
{
cerr << "Unknown wildcard content: " << ns << "#" << name << endl;
}
}
}
virtual void
_end_any_element (const ro_string& ns, const ro_string& name)
{
if (--depth_ > 0)
{
if (cur_)
cur_->_end_element (ns, name);
}
else
{
if (ns == "http://www.codesynthesis.com/email")
{
if (name == "text")
{
string_p_._post_impl ();
string text (string_p_.post_string ());
cerr << text << endl
<< endl;
}
else if (name == "binary")
{
binary_p_._post_impl ();
binary_p_.post_binary ();
}
}
cur_ = 0;
}
}
virtual void
_any_attribute (const ro_string& ns,
const ro_string& name,
const ro_string& value)
{
if (depth_ > 0)
{
// Nested wildcard attribute.
//
if (cur_)
cur_->_attribute (ns, name, value);
}
else
{
// Top-level attribute matched by the anyAttribute wildcard.
//
if (ns == "http://www.codesynthesis.com/email" && name == "thread-id")
{
uint_p_.pre ();
uint_p_._pre_impl ();
uint_p_._characters (value);
uint_p_._post_impl ();
unsigned int tid (uint_p_.post_unsigned_int ());
cerr << "Thread-id: " << tid << endl;
}
}
}
virtual void
_any_characters (const ro_string& s)
{
if (depth_ > 0)
{
if (cur_)
cur_->_characters (s);
}
}
private:
size_t depth_;
xml_schema::parser_base* cur_;
// Parsers for the unsigned int, string and binary types.
//
private:
xml_schema::unsigned_int_pskel& uint_p_;
xml_schema::string_pskel& string_p_;
email::binary_pskel& binary_p_;
};
int
main (int argc, char* argv[])
{
if (argc != 2)
{
cerr << "usage: " << argv[0] << " email.xml" << endl;
return 1;
}
try
{
// Construct the parser.
//
xml_schema::unsigned_int_pimpl unsigned_int_p;
xml_schema::string_pimpl string_p;
binary_pimpl binary_p;
envelope_pimpl envelope_p (unsigned_int_p, string_p, binary_p);
binary_p.parsers (string_p, // name
string_p); // mime
envelope_p.parsers (string_p, // to
string_p, // from
string_p); // subject
// Parse the XML instance document.
//
xml_schema::document doc_p (envelope_p,
"http://www.codesynthesis.com/email",
"message");
envelope_p.pre ();
doc_p.parse (argv[1]);
envelope_p.post_envelope ();
}
catch (const xml_schema::exception& e)
{
cerr << e << endl;
return 1;
}
catch (const std::ios_base::failure&)
{
cerr << argv[1] << ": unable to open or read failure" << endl;
return 1;
}
}
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