#include <fstream>
#include <sstream>
#include "driver.h"
#include "scanner.h"
namespace example {
Driver::Driver(class CalcContext& _calc)
: trace_scanning(false),
trace_parsing(false),
calc(_calc)
{
}
bool Driver::parse_stream(std::istream& in, const std::string& sname)
{
streamname = sname;
Scanner scanner(&in);
scanner.set_debug(trace_scanning);
this->lexer = &scanner;
Parser parser(*this);
parser.set_debug_level(trace_parsing);
return (parser.parse() == 0);
}
bool Driver::parse_file(const std::string &filename)
{
std::ifstream in(filename.c_str());
if (!in.good()) return false;
return parse_stream(in, filename);
}
bool Driver::parse_string(const std::string &input, const std::string& sname)
{
std::istringstream iss(input);
return parse_stream(iss, sname);
}
void Driver::error(const class location& l,
const std::string& m)
{
std::cerr << l << ": " << m << std::endl;
}
void Driver::error(const std::string& m)
{
std::cerr << m << std::endl;
}
}