static int plen(Ldisc ldisc, unsigned char c)
{
if ((c >= 32 && c <= 126) || (c >= 160 && !in_utf(ldisc->term)))
return 1;
else if (c < 128)
return 2; /* ^x for some x */
else if (in_utf(ldisc->term) && c >= 0xC0)
return 1; /* UTF-8 introducer character
* (FIXME: combining / wide chars) */
else if (in_utf(ldisc->term) && c >= 0x80 && c < 0xC0)
return 0; /* UTF-8 followup character */
else
return 4; /* <XY> hex representation */
}
static int char_start(Ldisc ldisc, unsigned char c)
{
if (in_utf(ldisc->term))
return (c < 0x80 || c >= 0xC0);
else
return 1;
}
static bool char_start(Ldisc *ldisc, unsigned char c)
{
if (in_utf(ldisc->term))
return (c < 0x80 || c >= 0xC0);
else
return true;
}
static void pwrite(Ldisc ldisc, unsigned char c)
{
if ((c >= 32 && c <= 126) ||
(!in_utf(ldisc->term) && c >= 0xA0) ||
(in_utf(ldisc->term) && c >= 0x80)) {
c_write(ldisc, (char *)&c, 1);
} else if (c < 128) {
char cc[2];
cc[1] = (c == 127 ? '?' : c + 0x40);
cc[0] = '^';
c_write(ldisc, cc, 2);
} else {
char cc[5];
sprintf(cc, "<%02X>", c);
c_write(ldisc, cc, 4);
}
}
void luni_send(void *handle, wchar_t * widebuf, int len, int interactive)
{
Ldisc ldisc = (Ldisc)handle;
int ratio = (in_utf(ldisc->term))?3:1;
char *linebuffer;
int linesize;
int i;
char *p;
linesize = len * ratio * 2;
linebuffer = snewn(linesize, char);
if (in_utf(ldisc->term)) {
/* UTF is a simple algorithm */
for (p = linebuffer, i = 0; i < len; i++) {
unsigned long ch = widebuf[i];
if ((ch & 0xF800) == 0xD800) {
#ifdef PLATFORM_IS_UTF16
if (i+1 < len) {
unsigned long ch2 = widebuf[i+1];
if ((ch & 0xFC00) == 0xD800 &&
(ch2 & 0xFC00) == 0xDC00) {
ch = 0x10000 + ((ch & 0x3FF) << 10) + (ch2 & 0x3FF);
i++;
}
} else
#endif
{
/* Unrecognised UTF-16 sequence */
ch = '.';
}
}
if (ch < 0x80) {
*p++ = (char) (ch);
} else if (ch < 0x800) {
*p++ = (0xC0 | (ch >> 6));
*p++ = (0x80 | (ch & 0x3F));
} else if (ch < 0x10000) {
*p++ = (0xE0 | (ch >> 12));
*p++ = (0x80 | ((ch >> 6) & 0x3F));
*p++ = (0x80 | (ch & 0x3F));
} else {
