Function msh_split

components/finsh/msh.c:152–229

#endif /* MSH_USING_BUILT_IN_COMMANDS */

static int msh_split(char *cmd, rt_size_t length, char *argv[FINSH_ARG_MAX])
{
    char *ptr;
    rt_size_t position;
    rt_size_t argc;
    rt_size_t i;

    ptr = cmd;
    position = 0;
    argc = 0;

    while (position < length)
    {
        /* strip bank and tab */
        while ((*ptr == ' ' || *ptr == '\t') && position < length)
        {
            *ptr = '\0';
            ptr ++;
            position ++;
        }

        if (argc >= FINSH_ARG_MAX)
        {
            rt_kprintf("Too many args ! We only Use:\n");
            for (i = 0; i < argc; i++)
            {
                rt_kprintf("%s ", argv[i]);
            }
            rt_kprintf("\n");
            break;
        }

        if (position >= length) break;

        /* handle string */
        if (*ptr == '"')
        {
            ptr ++;
            position ++;
            argv[argc] = ptr;
            argc ++;

            /* skip this string */
            while (*ptr != '"' && position < length)
            {
                if (*ptr == '\\')
                {
                    if (*(ptr + 1) == '"')
                    {
                        ptr ++;
                        position ++;
                    }
                }
                ptr ++;
                position ++;
            }
            if (position >= length) break;