int userprompt(unsigned id,...)
{
char *fmt, *str;
int ch;
if(!getPromptString(id, &str, &fmt))
return 0;
/* Issue message */
if(*fmt) {
va_list ap;
va_start(ap, id);
vprintf(fmt, ap);
va_end(ap);
}
while((ch = vcgetchar()) == 0 || (ch = mapMetakey(str, ch)) == 0)
beep(); /* hit erroreous character */
outc('\n'); /* advance to next line */
freePromptString(str, fmt);
return ch;
}
int vcgetcstr(const char *const legalCh)
{ int ch;
assert(legalCh);
fflush(stdout); /* Make sure the pending output arrives the
screen as we bypass the stdio interface */
while ((ch = vcgetchar()) == 0 || !strchr(legalCh, ch))
beep(); /* hit erroreous character */
outc('\n'); /* advance to next line */
return ch;
}
/*
* get a visual character that must match one of the supplied
* ones
*/
int vcgetcstr(const char *const legalCh)
{
int ch;
assert(legalCh);
fflush(stdout); /* Make sure the pending output arrives the
screen as we bypass the stdio interface */
while ((ch = toupper(vcgetchar())) == 0
|| !strchr(legalCh, ch))
{
if (cbreak)
{
ch = CTL_C; /* This is ^C for ^Break */
break;
}
beep(); /* hit erroreous character */
}
putchar('\n'); /* advance to next line */
return ch;
}
