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#include "parser.h"
#include "journal.h"
#include "config.h"
namespace ledger {
typedef std::list<parser_t *> parsers_list;
static parsers_list * parsers = NULL;
void initialize_parser_support()
{
parsers = new parsers_list;
}
void shutdown_parser_support()
{
if (parsers) {
delete parsers;
parsers = NULL;
}
}
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,
config_t& config,
journal_t * journal,
account_t * master,
const path * 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, config, journal, master, original_file);
return 0;
}
unsigned int parse_journal_file(const path& pathname,
config_t& config,
journal_t * journal,
account_t * master,
const path * original_file)
{
journal->sources.push_back(pathname);
if (! boost::filesystem::exists(pathname))
throw new error(string("Cannot read file '") +
string(pathname.string()) + "'");
if (! original_file)
original_file = &pathname;
boost::filesystem::ifstream stream(pathname);
return parse_journal(stream, config, journal, master, original_file);
}
extern parser_t * binary_parser_ptr;
extern parser_t * xml_parser_ptr;
extern parser_t * textual_parser_ptr;
unsigned int parse_ledger_data(config_t& config,
journal_t * journal,
parser_t * cache_parser,
parser_t * xml_parser,
parser_t * stdin_parser)
{
unsigned int entry_count = 0;
if (! cache_parser)
cache_parser = binary_parser_ptr;
if (! xml_parser)
xml_parser = xml_parser_ptr;
if (! stdin_parser)
stdin_parser = textual_parser_ptr;
DEBUG("ledger.config.cache",
"3. use_cache = " << config.use_cache);
if (! config.init_file.empty() &&
boost::filesystem::exists(config.init_file)) {
if (parse_journal_file(config.init_file.string(), config, journal) ||
journal->auto_entries.size() > 0 ||
journal->period_entries.size() > 0)
throw new error(string("Entries found in initialization file '") +
string(config.init_file.string()) + "'");
journal->sources.pop_front(); // remove init file
}
if (config.use_cache && ! config.cache_file.empty() &&
! config.data_file.empty()) {
DEBUG("ledger.config.cache",
"using_cache " << config.cache_file);
config.cache_dirty = true;
if (boost::filesystem::exists(config.cache_file)) {
boost::filesystem::ifstream stream(config.cache_file);
if (cache_parser && cache_parser->test(stream)) {
path price_db_orig = journal->price_db;
journal->price_db = config.price_db;
entry_count += cache_parser->parse(stream, config, journal,
NULL, &config.data_file);
if (entry_count > 0)
config.cache_dirty = false;
else
journal->price_db = price_db_orig;
}
}
}
if (entry_count == 0 && ! config.data_file.empty()) {
account_t * acct = NULL;
if (! config.account.empty())
acct = journal->find_account(config.account);
journal->price_db = config.price_db;
if (! journal->price_db.empty() &&
boost::filesystem::exists(journal->price_db)) {
if (parse_journal_file(journal->price_db, config, journal)) {
throw new error("Entries not allowed in price history file");
} else {
DEBUG("ledger.config.cache",
"read price database " << journal->price_db);
journal->sources.pop_back();
}
}
DEBUG("ledger.config.cache",
"rejected cache, parsing " << config.data_file);
if (config.data_file == "-") {
config.use_cache = false;
journal->sources.push_back("<stdin>");
#if 0
// jww (2006-03-23): Why doesn't XML work on stdin?
if (xml_parser && std::cin.peek() == '<')
entry_count += xml_parser->parse(std::cin, config, journal, acct);
else if (stdin_parser)
#endif
entry_count += stdin_parser->parse(std::cin, config, journal, acct);
}
else if (boost::filesystem::exists(config.data_file)) {
entry_count += parse_journal_file(config.data_file, config, journal,
acct);
if (! journal->price_db.empty())
journal->sources.push_back(journal->price_db);
}
}
VERIFY(journal->valid());
return entry_count;
}
} // namespace ledger
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