std::pair<uint, std::pair<goals, goals>> parse_goals(
parser& p,
std::vector<warning>& warnings_list,
const std::unordered_set<char>& declared_pieces,
const board& declared_board)throw(goals_parse_error,parse_error){
uint turns_limit;
goals uppercase_player_goals;
goals lowercase_player_goals;
if(!p.expect_string("<GOALS>"))
throw parse_error(p.get_line_number(), p.get_char_in_line_number(), "Goals segment must begin with \'<GOALS>\' string");
p.expect_whitespace();
parser_result<int> turns_limit_result = p.expect_int();
if(!turns_limit_result)
throw goals_parse_error(turns_limit_result.info.line_number, turns_limit_result.info.char_number, turns_limit_result.info.human_readable_info.c_str());
if(turns_limit_result.result < 1)
throw goals_parse_error(p.get_line_number(), p.get_char_in_line_number(), "Turns limit must be positive");
turns_limit = turns_limit_result.result;
p.expect_whitespace();
if(p.expect_plain_char()!='&')
throw goals_parse_error(p.get_line_number(), p.get_char_in_line_number(), "Turns limit must be terminated with \'&\'");
p.expect_whitespace();
char next_char = p.expect_plain_char();
bool ignore;
while(next_char == '@' || next_char == '#'){
ignore = false;
if(next_char == '@'){
next_char = p.expect_plain_char();
bool uppercase_player;
if(isupper(next_char))
uppercase_player = true;
else if(islower(next_char)){
uppercase_player = false;
next_char = toupper(next_char);
}
else
throw goals_parse_error(p.get_line_number(), p.get_char_in_line_number(), "Expected letter after \'@\'");
if(!declared_pieces.count(next_char)){
ignore = true;
warnings_list.push_back(warning(p.get_line_number(), p.get_char_in_line_number(), "Undeclared piece (piece doesn't appear in the previous board declaration)"));
}
char piece_symbol = next_char;
do{
p.expect_whitespace();
parser_result<int> x_result = p.expect_int();
if(!x_result)
throw goals_parse_error(x_result.info.line_number, x_result.info.char_number, x_result.info.human_readable_info.c_str());
if(x_result.result < 0)
throw goals_parse_error(p.get_line_number(), p.get_char_in_line_number(), "x coordinate must be non-negative");
if(!p.expect_whitespace())
throw goals_parse_error(p.get_line_number(), p.get_char_in_line_number(), "Expected whitespace after x coordinate");
parser_result<int> y_result = p.expect_int();
if(!y_result)
throw goals_parse_error(y_result.info.line_number, y_result.info.char_number, y_result.info.human_readable_info.c_str());
if(y_result.result < 0)
throw goals_parse_error(p.get_line_number(), p.get_char_in_line_number(), "y coordinate must be non-negative");
if(!declared_board.inside(x_result.result, y_result.result)){
ignore = true;
warnings_list.push_back(warning(p.get_line_number(), p.get_char_in_line_number(), "Given point is outside the board"));
}
if(!ignore){
if(uppercase_player)
uppercase_player_goals.add_piece_placement_goal(piece_symbol, x_result.result, y_result.result);
else
lowercase_player_goals.add_piece_placement_goal(piece_symbol, x_result.result, y_result.result);
}
p.expect_whitespace();
next_char = p.expect_plain_char();
if(next_char != ',' && next_char != '&')
throw goals_parse_error(p.get_line_number(), p.get_char_in_line_number(), "Expected \',\' or \'&\'");
}while(next_char != '&');
}
else{
next_char = p.expect_plain_char();
bool uppercase_player;
if(isupper(next_char))
uppercase_player = false;
else if(islower(next_char)){
uppercase_player = true;
next_char = toupper(next_char);
}
else
throw goals_parse_error(p.get_line_number(), p.get_char_in_line_number(), "Expected letter after \'#\'");
if(!declared_pieces.count(next_char)){
ignore = true;
warnings_list.push_back(warning(p.get_line_number(), p.get_char_in_line_number(), "Undeclared piece (piece doesn't appear in the previous board declaration)"));
}
p.expect_whitespace();
parser_result<int> number_of_pieces_result = p.expect_int();
if(!number_of_pieces_result)
throw goals_parse_error(number_of_pieces_result.info.line_number, number_of_pieces_result.info.char_number, number_of_pieces_result.info.human_readable_info.c_str());
if(number_of_pieces_result.result < 0)
throw goals_parse_error(p.get_line_number(), p.get_char_in_line_number(), "Number of piece captures must be non negative");
if(!ignore){
if(uppercase_player)
uppercase_player_goals.add_piece_capture_goal(next_char, number_of_pieces_result.result);
else
lowercase_player_goals.add_piece_capture_goal(next_char, number_of_pieces_result.result);
}
p.expect_whitespace();
if(p.expect_plain_char()!='&')
throw goals_parse_error(p.get_line_number(), p.get_char_in_line_number(), "Capture goal must be terminated with \'&\'");
}
p.expect_whitespace();
next_char = p.expect_plain_char();
}
return std::make_pair(turns_limit, std::make_pair(std::move(uppercase_player_goals), std::move(lowercase_player_goals)));
}