int
xmon_getchar(void)
{
int c;
if (lineleft == 0) {
lineptr = line;
for (;;) {
c = xmon_readchar();
if (c == -1 || c == 4)
break;
if (c == '\r' || c == '\n') {
*lineptr++ = '\n';
xmon_putchar('\n');
break;
}
switch (c) {
case 0177:
case '\b':
if (lineptr > line) {
xmon_putchar('\b');
xmon_putchar(' ');
xmon_putchar('\b');
--lineptr;
}
break;
case 'U' & 0x1F:
while (lineptr > line) {
xmon_putchar('\b');
xmon_putchar(' ');
xmon_putchar('\b');
--lineptr;
}
break;
default:
if (lineptr >= &line[sizeof(line) - 1])
xmon_putchar('\a');
else {
xmon_putchar(c);
*lineptr++ = c;
}
}
}
lineleft = lineptr - line;
lineptr = line;
}
if (lineleft == 0)
return -1;
--lineleft;
return *lineptr++;
}
static int xmon_write(const char *ptr, int nb)
{
int rv = 0;
const char *p = ptr, *q;
const char msg[] = "[Hit a key (a:all, q:truncate, any:next page)]";
if (nb <= 0)
return rv;
if (paginating && paginate_skipping)
return nb;
if (paginate_lpp) {
while (paginating && (q = strchr(p, '\n'))) {
rv += udbg_write(p, q - p + 1);
p = q + 1;
paginate_pos++;
if (paginate_pos >= paginate_lpp) {
udbg_write(msg, strlen(msg));
switch (xmon_readchar()) {
case 'a':
paginating = false;
break;
case 'q':
paginate_skipping = true;
break;
default:
/* nothing */
break;
}
paginate_pos = 0;
udbg_write("\r\n", 2);
if (paginate_skipping)
return nb;
}
}
}
return rv + udbg_write(p, nb - (p - ptr));
}
