Function get_statement

examples/api/apifull.c:506–551

* Prompt for and get input. * Statements are terminated by a semicolon. */

 *    Statements are terminated by a semicolon.
 */
int get_statement (char *buf)
{
    short   c;
    char    *p;
    int     cnt;

    p = buf;
    cnt = 0;
    printf("SQL> ");

    for (;;)
    {
        if ((c = getchar()) == EOF)
            return 1;

        if (c == '\n')
        {
            /* accept "quit" or "exit" to terminate application */

            if (!strncmp(buf, "exit", 4))
                return 1;
            if (!strncmp(buf, "quit", 4))
                return 1;

            /* Search back through white space looking for ';'.*/
            while (cnt && isspace(*(p - 1)))
            {
                p--;
                cnt--;
            }
            if (*(p - 1) == ';')
            {
                *p++ = '\0';

                return 0;
            }
            *p++ = ' ';
            printf("CON> ");
        }
        else
        {
            *p++ = (char)c;
        }
        cnt++;
    }
}