David Robillard
47a41c0d4d
git-svn-id: svn://localhost/ardour2/trunk@2791 d708f5d6-7413-0410-9779-e7cbd77b26cf
177 lines
4.3 KiB
C++
177 lines
4.3 KiB
C++
/* Copyright (C) 2002 The gtkmm Development Team
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <glibmm.h>
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#include <iomanip>
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#include <iostream>
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namespace
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{
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#ifndef GLIBMM_EXCEPTIONS_ENABLED
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//This is an alternative, to use when we have disabled exceptions:
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std::auto_ptr<Glib::Error> processing_error;
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#endif //GLIBMM_EXCEPTIONS_ENABLED
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void file_get_contents(const std::string& filename, Glib::ustring& contents)
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{
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#ifdef GLIBMM_EXCEPTIONS_ENABLED
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const Glib::RefPtr<Glib::IOChannel> channel = Glib::IOChannel::create_from_file(filename, "r");
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channel->read_to_end(contents);
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#else
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const Glib::RefPtr<Glib::IOChannel> channel = Glib::IOChannel::create_from_file(filename, "r", processing_error);
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channel->read_to_end(contents, processing_error);
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#endif //GLIBMM_EXCEPTIONS_ENABLED
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}
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Glib::ustring trim_whitespace(const Glib::ustring& text)
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{
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Glib::ustring::const_iterator pbegin (text.begin());
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Glib::ustring::const_iterator pend (text.end());
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while(pbegin != pend && Glib::Unicode::isspace(*pbegin))
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++pbegin;
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Glib::ustring::const_iterator temp (pend);
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while(pbegin != temp && Glib::Unicode::isspace(*--temp))
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pend = temp;
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return Glib::ustring(pbegin, pend);
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}
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class DumpParser : public Glib::Markup::Parser
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{
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public:
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DumpParser();
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virtual ~DumpParser();
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protected:
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virtual void on_start_element(Glib::Markup::ParseContext& context,
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const Glib::ustring& element_name,
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const AttributeMap& attributes);
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virtual void on_end_element(Glib::Markup::ParseContext& context,
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const Glib::ustring& element_name);
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virtual void on_text(Glib::Markup::ParseContext& context, const Glib::ustring& text);
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private:
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int parse_depth_;
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void indent();
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};
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DumpParser::DumpParser()
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:
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parse_depth_ (0)
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{}
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DumpParser::~DumpParser()
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{}
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void DumpParser::on_start_element(Glib::Markup::ParseContext&,
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const Glib::ustring& element_name,
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const AttributeMap& attributes)
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{
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indent();
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std::cout << '<' << element_name;
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for(AttributeMap::const_iterator p = attributes.begin(); p != attributes.end(); ++p)
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{
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std::cout << ' ' << p->first << "=\"" << p->second << '"';
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}
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std::cout << ">\n";
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++parse_depth_;
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}
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void DumpParser::on_end_element(Glib::Markup::ParseContext&, const Glib::ustring& element_name)
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{
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--parse_depth_;
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indent();
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std::cout << "</" << element_name << ">\n";
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}
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void DumpParser::on_text(Glib::Markup::ParseContext&, const Glib::ustring& text)
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{
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const Glib::ustring trimmed_text = trim_whitespace(text);
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if(!trimmed_text.empty())
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{
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indent();
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std::cout << trimmed_text << '\n';
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}
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}
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void DumpParser::indent()
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{
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if(parse_depth_ > 0)
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{
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std::cout << std::setw(4 * parse_depth_)
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/* gcc 2.95.3 doesn't like this: << std::right */
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<< ' ';
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}
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}
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} // anonymous namespace
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int main(int argc, char** argv)
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{
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if(argc < 2)
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{
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std::cerr << "Usage: parser filename\n";
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return 1;
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}
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DumpParser parser;
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Glib::Markup::ParseContext context (parser);
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#ifdef GLIBMM_EXCEPTIONS_ENABLED
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try
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{
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#endif //GLIBMM_EXCEPTIONS_ENABLED
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Glib::ustring contents;
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file_get_contents(argv[1], contents);
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context.parse(contents);
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context.end_parse();
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#ifdef GLIBMM_EXCEPTIONS_ENABLED
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}
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catch(const Glib::Error& error)
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{
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std::cerr << argv[1] << ": " << error.what() << std::endl;
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return 1;
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}
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#else
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if(processing_error.get())
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{
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std::cerr << argv[1] << ": " << processing_error->what() << std::endl;
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return 1;
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}
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#endif //GLIBMM_EXCEPTIONS_ENABLED
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return 0;
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}
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