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#include <iostream>
#include <string>
#include <tuple>
using namespace std;
#include "xml.hpp"
class MyXML : public XML {
public:
explicit MyXML(ostream& out, size_t indent = 4)
: pout_(&out)
, indent_(indent)
{
}
protected:
void handle_start(string_view name, const vector<tuple<string_view, string_view>>& attr) override
{
*pout_ << string(depth_++ * indent_, ' ')
<< "<" << name;
auto start = cbegin(attr);
auto end = cend(attr);
if ( start != end ) {
*pout_ << " " << get<0>(*start) << "=\"" << get<1>(*start) << "\"";
++start; // skip first Element
for ( ; start != end; ++start ) {
*pout_ << ", " << get<0>(*start) << "=\"" << get<1>(*start) << "\"";
}
}
*pout_ << ">" << '\n';
}
void handle_end(string_view name) override
{
*pout_ << string(--depth_ * indent_, ' ')
<< "</" << name << ">"
<< '\n';
}
void handle_cdata_start() override
{
*pout_ << string(depth_ * indent_, ' ')
<< "<![CDATA[" << '\n';
}
void handle_cdata_end() override
{
*pout_ << string(depth_ * indent_, ' ')
<< "]]>" << '\n';
}
static bool contains_only_whitespace(span<const char> data)
{
return ranges::all_of(data, [](unsigned char chr) {
return std::isspace(chr);
});
}
void handle_character_data(span<const char> data) override
{
if ( contains_only_whitespace(data) ) {
return;
}
*pout_ << string(depth_ * indent_, ' ') << "Data: ";
pout_->write(data.data(), static_cast<streamsize>(data.size()));
*pout_ << '\n';
}
private:
ostream* pout_;
size_t depth_{};
size_t indent_;
};
int
main()
{
try {
MyXML myxml(cout);
myxml.parse(cin);
}
catch ( exception& e ) {
cerr << "Fehler: " << e.what() << '\n';
}
}
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