Cell* search_symbol(string s, bool expected)
{
//stack<symbol_map> temp_AR_stack;
symbol_map curr_map;
symbol_map::iterator curr_map_it;
bool exist = false;
Cell* linked_symbol = NULL;
/* while (!(AR_stack.empty()))
{
curr_map = AR_stack.top();
curr_map_it = curr_map.find(s);
// Check if the current record (map) has the mapped value
if (curr_map_it != curr_map.end())
{
linked_symbol = curr_map_it->second;
exist = true;
break;
}
else
{
temp_AR_stack.push(curr_map);
AR_stack.pop();
}
}
*/
for (int i = AR_vector.size()-1; i>=0; i--)
{
curr_map = AR_vector[i];
curr_map_it = curr_map.find(s);
//Check if the current record (map) contains the mapped value
if (curr_map_it != curr_map.end())
{
linked_symbol = curr_map_it->second;
exist = true;
break;
}
}
/*
* after searching the symbol map, if it is still not found,
* check the global variable record
*/
if (!exist)
{
SMap_it = SMap.find(s);
if ((SMap_it == SMap.end())&&expected)
{
//if (!Symbol_operator_finder(s))
throw runtime_error("attempt to reference an undefined symbol \"" + s
+"\"");
//return make_symbol(s.c_str());
}
else if (SMap_it == SMap.end())
linked_symbol = NULL;
else
linked_symbol = SMap_it->second;
}
return linked_symbol;
}
void insert_element(string s, Cell* map_cell)
{
//check if there is any local symbol table
if (!(AR_vector.empty()))
{
symbol_map curr_map = AR_vector.back();
AR_vector.pop_back();
symbol_map::iterator curr_map_it = curr_map.find(s);
//check if it is defined before
if (curr_map_it != curr_map.end())
{
AR_vector.push_back(curr_map);
throw runtime_error(s + " cannot be redefined.");
}
curr_map[s] = map_cell;
AR_vector.push_back(curr_map);
}
else
{
SMap_it = SMap.find(s);
//check if it is defined before
if (SMap_it != SMap.end())
throw runtime_error(s + " cannot be redefined.");
SMap.insert( pair< string, Cell*>(s,map_cell));
}
}
void StdLib::Initialize(symbol_map& symbols) {
{
auto_ptr<Object> object(new Object());
symbols.insert(OBJECT, object);
}
symbol_iter object = symbols.find(OBJECT);
{
auto_ptr<Object> function(new Object(*object->second));
symbols.insert(FUNCTION, function);
}
symbol_iter function = symbols.find(FUNCTION);
{
auto_ptr<Object> int_(new Object(*object->second));
symbols.insert(INTEGER, int_);
}
//symbol_iter int_ = symbols.find(INTEGER);
{
auto_ptr<Object> str(new Object(*object->second));
symbols.insert(STRING, str);
}
//symbol_iter str = symbols.find(STRING);
{
auto_ptr<Object> print(new Object(*function->second));
symbols.insert("print", print);
} {
symbol_mod_iter print = symbols.find("print");
auto_ptr<function_vec> function(new function_vec());
Cmd c;
Variable arg(".arg1");
c.exps.push_back(arg);
c.cmd = "echo {}";
function->push_back(c);
print->second->insertFunction(function);
}
}
void parse_template(template_files_vector::iterator i, std::ifstream &input, std::ofstream &output, const symbol_map &symbols)
{
std::string line;
parser_vector parsers;
parsers.push_back(parser_object_ptr(new symbol_parser(symbols, parsers, input, output)));
input.open(i->first.c_str(), std::ios::in);
string_pair &out_file = i->second;
output.open(std::string(out_file.first + symbols.find("NAME_LOWER")->second + out_file.second).c_str(),
std::ios::out | std::ios::trunc);
if( !input.is_open() )
throw std::runtime_error("Failed to open template file");
if( !output.is_open() )
throw std::runtime_error("Failed to open output file");
std::string buff;
// read and write line by line
while(true)
{
symbol_parser::m_should_output = true;
std::getline(input, line);
buff = line;
if( input.eof() )
break;
if( !input.good() || !output.good() )
throw std::runtime_error("Input or Output error!");
for( parser_vector::reverse_iterator i = parsers.rbegin(), end = parsers.rend(); i != end; ++i )
if( (**i)(buff) )
break;
}
input.close();
output.close();
input.clear();
output.clear();
}