/*! \file nodetest.cpp

  test project 

*/

#include <fstream>
#include <iostream>
#include "xmlpp.h"

using namespace xmlpp;
using namespace std;

int main() {

	// every single document needs its own context
	// this is necessary for DTD handling and entity mapping	  
	XMLContextPtr ctx(new XMLContext);
	XMLContextPtr ctx2(new XMLContext);
	
	XMLDocument doc(ctx);
	XMLDocument doc_out(ctx2);
	XMLNodeListIterator it;

/* 
	// testing of assignment operators
	 	
	XMLNode z1(ctx2,"node1");
	XMLNodePtr z2=new XMLNode(ctx2,"node2");
	XMLNode z4(ctx2); // empty node
	z4=z2; // assignment from ptr
	cerr << z4.name() << endl;
	z4=z1; // assignment from ref
	cerr << z4.name() << endl;
*/
	
/*
	// testing of document generation from code 
	XMLNode z4(ctx2, "node4");
	z1->add_child(z4);
	
	z1->add_child(z2);
	
	XMLNode *z3=new XMLNode(ctx2,"node3");
	z1->add_child(z3);

	XMLNodeList clist;
	clist=z1->children();
	it=clist.begin();
	while(it!=clist.end()) {
		cerr << "name: " << (*it)->name() << endl;
		it++;	
	}
	
	doc_out.add_child(z1);

	XMLNode *pi1=new XMLNode(ctx2, "xml");
	pi1->add_attr("version", "1.0");
	doc_out.add_pi(pi1);
	
	z1->add_attr("value", "true");
	z1->add_attr("visible", "false");
	
	// save the constructed node
   ofstream outstream("test.xml");
   if (outstream.is_open()) doc_out.save(outstream);
*/
	
	// testing of loading data from a file
	// libxmlpp takes ~340ms on a P3-500 to
	// load and parse ~270kB xml data	
	string infile("hamlet.xml");
/*	
	ifstream istr(infile.c_str());
	try { doc.load(istr, ctx); }
	catch (xmlerror e) {
		e.show_error(ctx);
		e.show_line(ctx, infile);
		exit(1);
	}
*/

	// load a xml document from a file
	try { doc.load_file(infile); }
	catch (xmlerror e) {
		cerr << "Error: " << e.get_string() << endl;
		if(e.get_info().size()) {
			cerr << "File: " << e.get_info() << endl;
		}
		if(e.get_error()!=xml_filename_invalid &&
			e.get_error()!=xml_file_access) {
			e.show_error(ctx);
			e.show_line(ctx, infile);
		}
		exit(1);
	}
	
	cerr << "succesfully loaded " << infile << endl;
	
	XMLNodeList nl, x1, x2;
	XMLNodeListIterator xIt;
	
  	/*
	// list all process instructions	
	// process instructions (= <?xml...?>)
	// are kept as a XMLNodeList in class XMLDocument,
	// so are (will be) DTD tags
	nl=doc.get_pi_list();
	it=nl.begin();
	while(it!=nl.end()) {
		cerr << "pi name: " << (*it)->name() << endl;
		XMLAttributes pia=(*it)->get_attrmap();
		XMLAttributes::const_iterator aIt;
		for(aIt=pia.begin(); aIt!=pia.end(); aIt++) {
			XMLAttributes::value_type attr = *aIt;
			cerr << ' ' << attr.first.c_str() << '='
						<< '\"' << attr.second.c_str() << '\"';
			cerr << endl;
		}
		it++;
	}	  
	*/

	// these two instructions are equivalent
	//nl=doc.firstchild("PLAY")->children("ACT");
	nl=doc.firstchild("uiconfig")->firstchild("iconbar")->children();
	
	it=nl.begin();
	while(it!=nl.end()) {
		cerr << "in name: " << (*it)->name() << endl;
		try {
			x2=(*it)->children("item");
			xIt=x2.begin();
			while(xIt!=x2.end()) {
				cerr << "  in name: " << (*xIt)->name() << endl;
				xIt++;
			}
		} catch (xmlerror e) {
			cerr << "Error: " << e.get_string() << endl;
			it++;
			continue;
		}
		it++;	
	}

/*
	// save document from local stream	
   ofstream outstr("z.xml");
   if (outstr.is_open()) doc.save(outstr);
*/
	
	// save document from filename
	// if filename is omitted, 
	// the filename at time of loading is used or the filename, 
	// which was set by ->filename("xxx").
	try {
		// we won't overwrite the original file	  
		// this could also be done by just .save_file("name")
		doc.filename("z.xml");
		doc.save_file();
		
	}
	catch (xmlerror e) {
		cerr << "Error: " << e.get_string() << endl;
		if(e.get_info().size()) {
			cerr << "File: " << e.get_info() << endl;
		}
		if(e.get_error()!=xml_filename_invalid &&
			e.get_error()!=xml_file_access) {
			e.show_error(ctx);
			e.show_line(ctx, infile);
		}
		exit(1);
	}
		
   return 0;
}


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