int insert_command( char * path , cmd_node_t * head , cmd_t * comm )
{
if( !comm || ! path || ! head )
error_ret("null arg",-1);
char * nextstr;
if( !(nextstr = strchr( path + 1 , '/' )) ) { /* add here */
head->opts = add_comm_to_list( head->opts , comm );
}
else /* it's a sub-command */
{
*nextstr = 0;
cmd_node_t * nextnode ;
/* we should have the requested child */
if(!(nextnode = find_command( head->opts , path + 1 )))
error_ret("request sub-command, but none available",-1);
*nextstr = '/';
if( insert_command( nextstr , nextnode , comm ) < 0 )
error_ret("recursive badness",-1);
}
return(0);
}
static void cmd_done() {
CMD_DATA* n;
CREATE(n, CMD_DATA, 1);
memcpy(n, &build, sizeof(CMD_DATA));
insert_command(n, n->language);
}
/**
* \brief Insert a command in the system stack.
* \param delay Delay before the execution of the command.
* \param cmd Command to execute.
*/
LIBLOCAL TuxDrvError
tux_cmd_parser_insert_sys_command(float delay, delay_cmd_t *cmd)
{
TuxDrvError ret;
#ifdef USE_MUTEX
mutex_lock(__stack_mutex);
#endif
ret = insert_command(delay, cmd, &sys_cmd_stack);
#ifdef USE_MUTEX
mutex_unlock(__stack_mutex);
#endif
return ret;
}
/**
* \brief Insert a command in the user stack.
* \param delay Delay before the execution of the command.
* \param cmd Command to execute.
*/
LIBLOCAL TuxDrvError
tux_cmd_parser_insert_user_command(float delay, const char *cmd_str)
{
TuxDrvError ret;
delay_cmd_t cmd;
#ifdef USE_MUTEX
mutex_lock(__stack_mutex);
#endif
ret = parse_command(cmd_str, &cmd);
if (ret == E_TUXDRV_NOERROR)
{
ret = insert_command(delay, &cmd, &user_cmd_stack);
}
#ifdef USE_MUTEX
mutex_unlock(__stack_mutex);
#endif
return ret;
}
int register_command( char * path , cmd_t * comm ){
if(!path || !is_good_path(path) )
error_ret("bad arg",-1);
cmd_node_t * head = command_head.opts;
if( ! head ) {
/* path should be "/" */
head = calloc( 1 , sizeof(*head) );
head->cmd = comm;
command_head.opts = head;
} else {
char * npath = strdup(path);
if( insert_command( npath , &command_head , comm ) < 0 ) {
free(npath);
error_ret("can't insert",-1);
}
free(npath);
}
return(0);
}
//return false if there was a ( or ) in the command
bool Subshell::parse_pointers()
{
bool check_arg = false;
string temp;
string c = command_line;
string for_connectors = c;
for (unsigned i = 0; i < c.size(); i++)
{
if (c.at(i) == '(')
{
stack<char> left;
stack<char> right;
temp = "";
i++;
left.push('(');
while (i < c.size())
{
if (c.at(i) == '(') left.push('(');
else if (c.at(i) == ')') right.push(')');
if (left.size() >= right.size() && !left.empty() && !right.empty())
{
bool more_p = pop_stack(left, right);
if (more_p) break;
else check_arg = true;
}
temp = temp + c.at(i);
i++;
}
if (!empty_stack(left, right))
{
cout << "Error: No matching '(' for ')'" << endl;
return false;
}
if (empty_command(temp))
{
cout << "Error: Unexpected '(' or ')'" << endl;
return false;
}
bool continue_on = true;
if (check_arg && arg_error(temp))
{
temp = "QuynhNguyenIsAwesome";
continue_on = false;
}
insert_command(temp);
if (continue_on)
{
int start = for_connectors.find(temp);
--start;
int end = temp.size() + 2;
for_connectors.replace(start, end, "C");
temp = "";
}
}
else if (c.at(i) == ';')
{
if (empty_command(temp))
{
temp = "";
}
else
{
insert_command(temp);
if (check_paren_in_commands(temp) == false) return false;
temp = "";
}
}
else if (c.at(i) == '|')
{
if (empty_command(temp))
{
temp = "";
}
else
{
insert_command(temp);
if (check_paren_in_commands(temp) == false) return false;
temp = "";
}
i++;
}
else if (c.at(i) == '&')
{
if (empty_command(temp))
{
temp = "";
}
else
{
insert_command(temp);
if (check_paren_in_commands(temp) == false) return false;
temp = "";
}
i++;
}
else temp = temp + c.at(i);
}
if (!empty_command(temp))
{
insert_command(temp);
if (check_paren_in_commands(temp) == false) return false;
}
command_line = for_connectors;
return true;
}