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#include "parser.h"
#include "journal.h"
#include "config.h"
#include <fstream>
#ifdef WIN32
#include <io.h>
#else
#include <unistd.h>
#endif
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 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, config, journal, master, original_file);
return 0;
}
unsigned int parse_journal_file(const std::string& path,
config_t& config,
journal_t * journal,
account_t * master,
const std::string * original_file)
{
journal->sources.push_back(path);
if (access(path.c_str(), R_OK) == -1)
throw new error(std::string("Cannot read file '") + path + "'");
if (! original_file)
original_file = &path;
std::ifstream stream(path.c_str());
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_PRINT("ledger.config.cache",
"3. use_cache = " << config.use_cache);
if (config.use_cache && ! config.cache_file.empty() &&
config.cache_file != "<none>" && ! config.data_file.empty()) {
DEBUG_PRINT("ledger.config.cache",
"using_cache " << config.cache_file);
config.cache_dirty = true;
if (access(config.cache_file.c_str(), R_OK) != -1) {
std::ifstream stream(config.cache_file.c_str());
if (cache_parser && cache_parser->test(stream)) {
std::string 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() &&
access(journal->price_db.c_str(), R_OK) != -1) {
if (parse_journal_file(journal->price_db, config, journal)) {
throw new error("Entries not allowed in price history file");
} else {
DEBUG_PRINT("ledger.config.cache",
"read price database " << journal->price_db);
journal->sources.pop_back();
}
}
DEBUG_PRINT("ledger.config.cache",
"rejected cache, parsing " << config.data_file);
if (config.data_file == "-") {
config.use_cache = false;
journal->sources.push_back("/dev/stdin");
std::ostringstream buffer;
while (std::cin.good() && ! std::cin.eof()) {
static char line[8192];
std::cin.read(line, 8192);
std::streamsize count = std::cin.gcount();
buffer.write(line, count);
}
buffer.flush();
std::istringstream buf_in(buffer.str());
entry_count += parse_journal(buf_in, config, journal, acct);
}
else if (access(config.data_file.c_str(), R_OK) != -1) {
entry_count += parse_journal_file(config.data_file, config,
journal, acct);
if (! journal->price_db.empty())
journal->sources.push_back(journal->price_db);
}
// Clear out what was set during the textual parsing phase
clear_account_xdata acct_cleaner;
walk_accounts(*journal->master, acct_cleaner);
}
VALIDATE(journal->valid());
return entry_count;
}
} // namespace ledger
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