/* Read stdin linewise and interpret as GTP commands. */
void
gtp_main_loop(struct gtp_command commands[])
{
char line[GTP_BUFSIZE];
char command[GTP_BUFSIZE];
char *p;
int i;
int id;
int n;
int status = GTP_OK;
while (status == GTP_OK) {
/* Read a line from stdin. */
if (!fgets(line, GTP_BUFSIZE, stdin))
break; /* EOF or some error */
/* Remove comments. */
if ((p = strchr(line, '#')) != NULL)
*p = 0;
p = line;
/* Look for an identification number. */
if (sscanf(p, "%d%n", &id, &n) == 1)
p += n;
else
id = -1; /* No identification number. */
/* Look for command name. */
if (sscanf(p, " %s %n", command, &n) < 1)
continue; /* Whitespace only on this line, ignore. */
p += n;
/* Search the list of commands and call the corresponding function
* if it's found.
*/
for (i = 0; commands[i].name != NULL; i++) {
if (strcmp(command, commands[i].name) == 0) {
status = (*commands[i].function)(p, id);
break;
}
}
if (commands[i].name == NULL)
gtp_failure(id, "unknown command: '%s'", command);
if (status == GTP_FATAL)
gtp_panic();
}
}
/* Read filehandle gtp_input linewise and interpret as GTP commands. */
void
gtp_main_loop(struct gtp_command commands[], FILE *gtp_input)
{
char line[GTP_BUFSIZE];
char command[GTP_BUFSIZE];
char *p;
int i;
int n;
int status = GTP_OK;
while (status == GTP_OK) {
/* Read a line from gtp_input. */
if (!fgets(line, GTP_BUFSIZE, gtp_input))
break; /* EOF or some error */
/* Preprocess the line. */
for (i = 0, p = line; line[i]; i++) {
char c = line[i];
/* Convert HT (9) to SPACE (32). */
if (c == 9)
*p++ = 32;
/* Remove CR (13) and all other control characters except LF (10). */
else if ((c > 0 && c <= 9)
|| (c >= 11 && c <= 31)
|| c == 127)
continue;
/* Remove comments. */
else if (c == '#')
break;
/* Keep ordinary text. */
else
*p++ = c;
}
/* Terminate string. */
*p = 0;
p = line;
/* Look for an identification number. */
if (sscanf(p, "%d%n", ¤t_id, &n) == 1)
p += n;
else
current_id = -1; /* No identification number. */
/* Look for command name. */
if (sscanf(p, " %s %n", command, &n) < 1)
continue; /* Whitespace only on this line, ignore. */
p += n;
/* Search the list of commands and call the corresponding function
* if it's found.
*/
for (i = 0; commands[i].name != NULL; i++) {
if (strcmp(command, commands[i].name) == 0) {
status = (*commands[i].function)(p);
break;
}
}
if (commands[i].name == NULL)
gtp_failure("unknown command");
if (status == GTP_FATAL)
gtp_panic();
}
}
