/*!
* \brief Return the activation state of an item with a specified name.
*/
bool CNutConfDoc::IsOptionActive(char *name)
{
NUTCOMPONENTOPTION *opt = FindOptionByName(m_root->nc_child, name);
if (opt && opt->nco_active) {
return true;
}
return false;
}
bool CommandLineParser::HandleOption (bool is_long_name_option, char const *token, char const *const next_token)
{
assert(token != NULL);
assert(*token != '\0');
// next_token may be NULL
// a short-name option must be solitary (e.g. "-a" and not "-ab")
if (!is_long_name_option && *(token+1) != '\0')
throw string("invalid short option: -") + token;
CommandLineOption const *option = FindOptionByName(is_long_name_option, token);
if (option == NULL)
{
if (is_long_name_option)
throw string("no such long option: --") + token;
else
throw string("no such short option: -") + token;
}
if (option->m_handler_method_with_argument != NULL) // argument required
{
if (next_token == NULL)
{
if (is_long_name_option)
throw string("option --") + option->m_long_name + " requires an argument";
else
throw string("option -") + option->m_short_name + " requires an argument";
}
(this->*(option->m_handler_method_with_argument))(string(next_token));
return true; // next_token was used up.
}
else if (option->m_handler_method_with_optional_argument != NULL) // optional argument
{
// if the next token is not present, or it's an option ("-" and "--"
// are not considered options), call the handler without the argument.
if (next_token == NULL || (*next_token == '-' && next_token != string("-") && next_token != string("--")))
{
(this->*(option->m_handler_method_with_optional_argument))(false, string());
return false; // next_token was NOT used up.
}
else
{
(this->*(option->m_handler_method_with_optional_argument))(true, string(next_token));
return true; // next_token was used up.
}
}
else // no argument
{
assert(option->m_handler_method_without_argument != NULL);
(this->*(option->m_handler_method_without_argument))();
return false; // next_token was NOT used up.
}
}
void CNutConfDoc::DeactivateOptionList(NUTCOMPONENT *compo, char **exlist)
{
if (exlist) {
if (compo == NULL) {
compo = m_root->nc_child;
}
for (int i = 0; exlist[i]; i++) {
NUTCOMPONENTOPTION *opt = FindOptionByName(compo, exlist[i]);
if (opt) {
opt->nco_active = 0;
}
}
}
}
/*!
* \brief Find NUTCOMPONENTOPTION by name.
*/
NUTCOMPONENTOPTION *CNutConfDoc::FindOptionByName(NUTCOMPONENT * compo, char *name)
{
if (compo == NULL && m_root) {
compo = m_root->nc_child;
}
while (compo) {
NUTCOMPONENTOPTION *opts = compo->nc_opts;
while (opts) {
if (strcmp(opts->nco_name, name) == 0) {
return opts;
}
opts = opts->nco_nxt;
}
if (compo->nc_child && (opts = FindOptionByName(compo->nc_child, name)) != NULL) {
return opts;
}
compo = compo->nc_nxt;
}
return NULL;
}
