static int handle_input()

in AZ3166/src/cores/arduino/cli/console_cli.cpp [430:537]

• 96 lines of code
• 29 McCabe index (conditional complexity)

static int handle_input(char* inbuf)
{
    struct
    {
        unsigned inArg:1;
        unsigned inQuote:1;
        unsigned done:1;
    } stat;
  
    static char* argv[MAX_CMD_ARG];
    int argc = 0;

    int i = 0;
        
    memset((void*)&argv, 0, sizeof(argv));
    memset(&stat, 0, sizeof(stat));
  
    do 
    {
        switch (inbuf[i]) 
        {
        case '\0':
            if (stat.inQuote)
            {
                return 1;
            }
            stat.done = 1;
            break;
  
        case '"':
            if (i > 0 && inbuf[i - 1] == '\\' && stat.inArg) 
            {
                memcpy(&inbuf[i - 1], &inbuf[i], strlen(&inbuf[i]) + 1);
                
                --i;
                break;
            }
            if (!stat.inQuote && stat.inArg)
            {
                break;
            }
            if (stat.inQuote && !stat.inArg)
            {
                return 1;
            }
            
            if (!stat.inQuote && !stat.inArg) 
            {
                stat.inArg = 1;
                stat.inQuote = 1;
                argc++;
                argv[argc - 1] = &inbuf[i + 1];
            } 
            else if (stat.inQuote && stat.inArg) 
            {
                stat.inArg = 0;
                stat.inQuote = 0;
                inbuf[i] = '\0';
            }
            break;
      
        case ' ':
            if (i > 0 && inbuf[i - 1] == '\\' && stat.inArg) 
            {
                memcpy(&inbuf[i - 1], &inbuf[i], strlen(&inbuf[i]) + 1);
                --i;
                break;
            }
            if (!stat.inQuote && stat.inArg)
            {
                stat.inArg = 0;
                inbuf[i] = '\0';
            }
            break;
        default:
            if (!stat.inArg) 
            {
                stat.inArg = 1;
                argc++;
                argv[argc - 1] = &inbuf[i];
            }
            break;
        }
    } while (!stat.done && ++i < INBUF_SIZE && argc <= MAX_CMD_ARG);
  
    if (stat.inQuote)
    {
        return 1;
    }
    if (argc < 1)
    {
        return 0;
    }
    
    Serial.printf("\r\n");
    
    for(int i = 0; i < cmd_count; i++)
    {
        if(strcmp(cmds[i].name, argv[0]) == 0)
        {
            cmds[i].function(argc, argv);
            return 0;
        }
    }
    
    Serial.printf("Error:Invalid command: %s\r\n", argv[0]);
    return 0;
}