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/*
jmdict, a frontend to the JMdict file. http://mandrill.fuxx0r.net/jmdict.php
Copyright (C) 2004 Florian Bluemel (florian.bluemel@uni-dortmund.de)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <expat.h>
#include <istream>
#include <string>
#include <map>
namespace xml {
class Tag {
public:
Tag(const std::string& name, const char** attrs) : m_name(name) {
while (*attrs) {
m_attributes[*attrs] = *(attrs + 1);
attrs += 2;
}
}
const std::string& name() const {
return m_name;
}
std::string attribute(const std::string& name) const {
std::map<std::string, std::string>::const_iterator val = m_attributes.find(name);
if (val == m_attributes.end())
return "";
return val->second;
}
const std::string& text() const {
return m_text;
}
void append(const std::string& t) {
m_text += t;
}
void append(const char* t, int len) {
m_text.append(t, len);
}
private:
std::string m_name;
std::string m_text;
std::map<std::string, std::string> m_attributes;
};
template<class Stack>
class Parser {
public:
Parser(Stack& stack) : m_stack(stack) {
m_parser = XML_ParserCreate(0);
XML_SetUserData(m_parser, this);
XML_SetElementHandler(m_parser, &Parser::start, &Parser::end);
XML_SetCharacterDataHandler(m_parser, Parser::chardata);
}
~Parser() {
XML_ParserFree(m_parser);
}
void parse(std::istream& in) {
const size_t BLOCK_SIZE = 1 << 15;
while (in) {
char* buffer = static_cast<char*>(XML_GetBuffer(m_parser, BLOCK_SIZE));
in.read(buffer, BLOCK_SIZE);
XML_ParseBuffer(m_parser, in.gcount(), in.eof());
}
}
private:
static void start(void* data, const char* e, const char** a) {
Parser& parser = *static_cast<Parser*>(data);
parser.m_stack.push(Tag(e, a));
}
static void chardata(void* data, const XML_Char* text, int len) {
Parser& parser = *static_cast<Parser*>(data);
parser.m_stack.top().append(text, len);
}
static void end(void* data, const char*) {
Parser& parser = *static_cast<Parser*>(data);
parser.m_stack.pop();
}
XML_Parser m_parser;
Stack& m_stack;
};
} // namespace xml
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