This is an old revision of the document!

CLI parser

Data structure is a lookup tree.

Each node is structured as such:

arg_node
char* full_name
char* quick_name
size_t nb_leaves
arg_node **leaves
void (callback)( const char command, size_t offset)

The command parser works as such:

arg_node cfg_root = ....;
 
arg_node *cfg_cur = cfg_root;
 
void process_cmd( arg_node *cfg_cur, const char* command, size_t offset=0;)
{
    size_t arg_len=0;
    char* arg = command+offset;
 
    // Search the next argument boundary
    while( arg[arg_len] != '\0' && arg[arg_len] != ' ')
        ++arg_len;
 
    if( arg_len == 0 )
    {
        if( cfg_cur->callback != null)
            cfg_cur->callback( command);
    }
 
    if( leaves != null )
    {
        for( size_t i=0; i<cfg_cur->nb_leaves; ++i)
        {
            if( strncmp( cfg_cur->quick_name, arg, arg_len) == 0)
            {
                // Positive match
            }
        }
    }
}