bool core_options::parse_command_line(int argc, char **argv, int priority, astring &error_string)
{
// reset the errors and the command
error_string.reset();
m_command.reset();
// iterate through arguments
int unadorned_index = 0;
bool retVal = true;
for (int arg = 1; arg < argc; arg++)
{
// determine the entry name to search for
const char *curarg = argv[arg];
bool is_unadorned = (curarg[0] != '-');
const char *optionname = is_unadorned ? core_options::unadorned(unadorned_index++) : &curarg[1];
// find our entry; if not found, indicate invalid option
entry *curentry = m_entrymap.find(optionname);
if (curentry == NULL)
{
error_string.catprintf("Error: unknown option: %s\n", curarg);
retVal = false;
if (!is_unadorned) arg++;
continue;
}
// process commands first
if (curentry->type() == OPTION_COMMAND)
{
// can only have one command
if (m_command)
{
error_string.catprintf("Error: multiple commands specified -%s and %s\n", m_command.cstr(), curarg);
return false;
}
m_command = curentry->name();
continue;
}
// get the data for this argument, special casing booleans
const char *newdata;
if (curentry->type() == OPTION_BOOLEAN)
newdata = (strncmp(&curarg[1], "no", 2) == 0) ? "0" : "1";
else if (is_unadorned)
newdata = curarg;
else if (arg + 1 < argc)
newdata = argv[++arg];
else
{
error_string.catprintf("Error: option %s expected a parameter\n", curarg);
return false;
}
// set the new data
validate_and_set_data(*curentry, newdata, priority, error_string);
}
return retVal;
}
bool core_options::parse_ini_file(core_file &inifile, int priority, int ignore_priority, astring &error_string)
{
// loop over lines in the file
char buffer[4096];
while (core_fgets(buffer, ARRAY_LENGTH(buffer), &inifile) != NULL)
{
// find the extent of the name
char *optionname;
for (optionname = buffer; *optionname != 0; optionname++)
if (!isspace((UINT8)*optionname))
break;
// skip comments
if (*optionname == 0 || *optionname == '#')
continue;
// scan forward to find the first space
char *temp;
for (temp = optionname; *temp != 0; temp++)
if (isspace((UINT8)*temp))
break;
// if we hit the end early, print a warning and continue
if (*temp == 0)
{
error_string.catprintf("Warning: invalid line in INI: %s", buffer);
continue;
}
// NULL-terminate
*temp++ = 0;
char *optiondata = temp;
// scan the data, stopping when we hit a comment
bool inquotes = false;
for (temp = optiondata; *temp != 0; temp++)
{
if (*temp == '"')
inquotes = !inquotes;
if (*temp == '#' && !inquotes)
break;
}
*temp = 0;
// find our entry
entry *curentry = m_entrymap.find(optionname);
if (curentry == NULL)
{
if (priority >= ignore_priority)
error_string.catprintf("Warning: unknown option in INI: %s\n", optionname);
continue;
}
// set the new data
validate_and_set_data(*curentry, optiondata, priority, error_string);
}
return true;
}
bool core_options::set_value(const char *name, const char *value, int priority, astring &error_string)
{
// find the entry first
entry *curentry = m_entrymap.find(name);
if (curentry == NULL)
{
error_string.catprintf("Attempted to set unknown option %s\n", name);
return false;
}
// validate and set the item normally
return validate_and_set_data(*curentry, value, priority, error_string);
}
bool core_options::set_value(const char *name, const char *value, int priority, std::string &error_string)
{
// find the entry first
auto curentry = m_entrymap.find(name);
if (curentry == m_entrymap.end())
{
strcatprintf(error_string, "Attempted to set unknown option %s\n", name);
return false;
}
// validate and set the item normally
return validate_and_set_data(*curentry->second, value, priority, error_string);
}
