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#include "parser.h"
#include "journal.h"
#include <fstream>
#include <deque>
namespace ledger {
typedef std::deque<parser_t *> parsers_list;
static parsers_list parsers;
bool register_parser(parser_t * parser)
{
parsers_list::iterator i;
for (i = parsers.begin(); i != parsers.end(); i++)
if (*i == parser)
break;
if (i != parsers.end())
return false;
parsers.push_back(parser);
return true;
}
bool unregister_parser(parser_t * parser)
{
parsers_list::iterator i;
for (i = parsers.begin(); i != parsers.end(); i++)
if (*i == parser)
break;
if (i == parsers.end())
return false;
parsers.erase(i);
return true;
}
unsigned int parse_journal(std::istream& in,
journal_t * journal,
account_t * master,
const std::string * original_file)
{
if (! master)
master = journal->master;
for (parsers_list::iterator i = parsers.begin();
i != parsers.end();
i++)
if ((*i)->test(in))
return (*i)->parse(in, journal, master, original_file);
return 0;
}
unsigned int parse_journal_file(const std::string& path,
journal_t * journal,
account_t * master,
const std::string * original_file)
{
journal->sources.push_back(path);
if (access(path.c_str(), R_OK) == -1)
return 0;
if (! original_file)
original_file = &path;
std::ifstream stream(path.c_str());
return parse_journal(stream, journal, master, original_file);
}
} // namespace ledger
#ifdef USE_BOOST_PYTHON
#include <boost/python.hpp>
#include <Python.h>
using namespace boost::python;
using namespace ledger;
struct parser_wrap : public parser_t
{
PyObject * self;
parser_wrap(PyObject * self_) : self(self_) {}
virtual bool test(std::istream& in) const {
return call_method<bool>(self, "test", in);
}
virtual unsigned int parse(std::istream& in,
journal_t * journal,
account_t * master = NULL,
const std::string * original_file = NULL) {
return call_method<unsigned int>(self, "__call__", in, journal, master,
original_file);
}
};
BOOST_PYTHON_FUNCTION_OVERLOADS(parse_journal_overloads, parse_journal, 2, 4)
BOOST_PYTHON_FUNCTION_OVERLOADS(parse_journal_file_overloads,
parse_journal_file, 2, 4)
void export_parser() {
class_< parser_t, parser_wrap, boost::noncopyable > ("Parser")
;
def("register_parser", register_parser);
def("unregister_parser", unregister_parser);
def("parse_journal", parse_journal, parse_journal_overloads());
def("parse_journal_file", parse_journal_file, parse_journal_file_overloads());
}
#endif // USE_BOOST_PYTHON
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