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/* Copyright (C) 2002 The gtkmm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <glibmm.h>
#include <iomanip>
#include <iostream>
namespace
{
void file_get_contents(const std::string& filename, Glib::ustring& contents)
{
const Glib::RefPtr<Glib::IOChannel> channel = Glib::IOChannel::create_from_file(filename, "r");
channel->read_to_end(contents);
}
Glib::ustring trim_whitespace(const Glib::ustring& text)
{
Glib::ustring::const_iterator pbegin (text.begin());
Glib::ustring::const_iterator pend (text.end());
while(pbegin != pend && Glib::Unicode::isspace(*pbegin))
++pbegin;
Glib::ustring::const_iterator temp (pend);
while(pbegin != temp && Glib::Unicode::isspace(*--temp))
pend = temp;
return Glib::ustring(pbegin, pend);
}
class DumpParser : public Glib::Markup::Parser
{
public:
DumpParser();
virtual ~DumpParser();
protected:
virtual void on_start_element(Glib::Markup::ParseContext& context,
const Glib::ustring& element_name,
const AttributeMap& attributes);
virtual void on_end_element(Glib::Markup::ParseContext& context,
const Glib::ustring& element_name);
virtual void on_text(Glib::Markup::ParseContext& context, const Glib::ustring& text);
private:
int parse_depth_;
void indent();
};
DumpParser::DumpParser()
:
parse_depth_ (0)
{}
DumpParser::~DumpParser()
{}
void DumpParser::on_start_element(Glib::Markup::ParseContext&,
const Glib::ustring& element_name,
const AttributeMap& attributes)
{
indent();
std::cout << '<' << element_name;
for(AttributeMap::const_iterator p = attributes.begin(); p != attributes.end(); ++p)
{
std::cout << ' ' << p->first << "=\"" << p->second << '"';
}
std::cout << ">\n";
++parse_depth_;
}
void DumpParser::on_end_element(Glib::Markup::ParseContext&, const Glib::ustring& element_name)
{
--parse_depth_;
indent();
std::cout << "</" << element_name << ">\n";
}
void DumpParser::on_text(Glib::Markup::ParseContext&, const Glib::ustring& text)
{
const Glib::ustring trimmed_text = trim_whitespace(text);
if(!trimmed_text.empty())
{
indent();
std::cout << trimmed_text << '\n';
}
}
void DumpParser::indent()
{
if(parse_depth_ > 0)
{
std::cout << std::setw(4 * parse_depth_)
/* gcc 2.95.3 doesn't like this: << std::right */
<< ' ';
}
}
} // anonymous namespace
int main(int argc, char** argv)
{
if(argc < 2)
{
std::cerr << "Usage: parser filename\n";
return 1;
}
DumpParser parser;
Glib::Markup::ParseContext context (parser);
try
{
Glib::ustring contents;
file_get_contents(argv[1], contents);
context.parse(contents);
context.end_parse();
}
catch(const Glib::Error& error)
{
std::cerr << argv[1] << ": " << error.what() << std::endl;
return 1;
}
return 0;
}
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