int main(int argc, const char * argv[])
{
Token *token;
Token *token_list; //This needs to be implemented as a linked list in scanner.h.
char source_name[MAX_FILE_NAME_LENGTH];
char date[DATE_STRING_LENGTH];
FILE *source_file = init_lister(argv[1], source_name, date);
init_scanner(source_file, source_name, date);
do
{
token = get_token();
add_token_to_list(token_list, token);
print_token(token);
}
while (???);//What is the sentinal value that ends this loop?
quit_scanner(source_file, token_list);
return 0;
}
int main(int argc, const char * argv[]) {
Token *token;
Token *token_list;
char source_name[MAX_FILE_NAME_LENGTH];
char date[DATE_STRING_LENGTH];
FILE *source_file = init_lister(argv[1], source_name, date);
init_scanner(source_file, source_name, date);
init_scanner2(source_name, date);
token_list = malloc(sizeof(Token));
token_list->nextptr = NULL;
do {
token = get_token();
add_token_to_list(token_list, token);
print_token(token);
} while (token->token_string[0] != '.');
quit_scanner(source_file, token_list);
return 0;
}
t_token_list *lexer(t_program_file *file, t_bool *lexer_result)
{
t_token_list *list;
t_result result;
t_file_reader file_reader;
list = NULL;
if (file == NULL)
return (NULL);
file_reader = generate_file_reader(file);
while (string_reader_has_more(&file_reader))
{
result = lex_token(&file_reader);
if (result.type == RESULT_ERROR)
return (print_syntax_error(&file_reader, &result.syntax_error, list));
else if (result.type == RESULT_NULL)
return (print_unexpected_char_error(&file_reader, list));
else if (result.type == RESULT_TOKEN
&& add_token_to_list(&list, result.token))
return (print_error_n("Error while adding token to list.\n"));
}
*lexer_result = true;
return (list);
}