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Parse primary device attributes as well as secondary and add a SIXEL

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flag (not used yet), from Anindya Mukherjee.
This commit is contained in:
nicm
2022-11-11 08:37:55 +00:00
parent 079f48e8a6
commit fe475bd856
7 changed files with 125 additions and 23 deletions
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112
tty-keys.c
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@ -55,6 +55,8 @@ static int tty_keys_clipboard(struct tty *, const char *, size_t,
size_t *);
static int tty_keys_device_attributes(struct tty *, const char *, size_t,
size_t *);
static int tty_keys_device_attributes2(struct tty *, const char *, size_t,
size_t *);
static int tty_keys_extended_device_attributes(struct tty *, const char *,
size_t, size_t *);
@ -684,7 +686,7 @@ tty_keys_next(struct tty *tty)
goto partial_key;
}
/* Is this a device attributes response? */
/* Is this a primary device attributes response? */
switch (tty_keys_device_attributes(tty, buf, len, &size)) {
case 0: /* yes */
key = KEYC_UNKNOWN;
@ -695,6 +697,17 @@ tty_keys_next(struct tty *tty)
goto partial_key;
}
/* Is this a secondary device attributes response? */
switch (tty_keys_device_attributes2(tty, buf, len, &size)) {
case 0: /* yes */
key = KEYC_UNKNOWN;
goto complete_key;
case -1: /* no, or not valid */
break;
case 1: /* partial */
goto partial_key;
}
/* Is this an extended device attributes response? */
switch (tty_keys_extended_device_attributes(tty, buf, len, &size)) {
case 0: /* yes */
@ -1235,7 +1248,7 @@ tty_keys_clipboard(struct tty *tty, const char *buf, size_t len, size_t *size)
}
/*
* Handle secondary device attributes input. Returns 0 for success, -1 for
* Handle primary device attributes input. Returns 0 for success, -1 for
* failure, 1 for partial.
*/
static int
@ -1244,16 +1257,13 @@ tty_keys_device_attributes(struct tty *tty, const char *buf, size_t len,
{
struct client *c = tty->client;
u_int i, n = 0;
char tmp[64], *endptr, p[32] = { 0 }, *cp, *next;
char tmp[128], *endptr, p[32] = { 0 }, *cp, *next;
*size = 0;
if (tty->flags & TTY_HAVEDA)
return (-1);
/*
* First three bytes are always \033[>. Some older Terminal.app
* versions respond as for DA (\033[?) so accept and ignore that.
*/
/* First three bytes are always \033[?. */
if (buf[0] != '\033')
return (-1);
if (len == 1)
@ -1262,35 +1272,105 @@ tty_keys_device_attributes(struct tty *tty, const char *buf, size_t len,
return (-1);
if (len == 2)
return (1);
if (buf[2] != '>' && buf[2] != '?')
if (buf[2] != '?')
return (-1);
if (len == 3)
return (1);
/* Copy the rest up to a 'c'. */
for (i = 0; i < (sizeof tmp) - 1; i++) {
for (i = 0; i < (sizeof tmp); i++) {
if (3 + i == len)
return (1);
if (buf[3 + i] == 'c')
break;
tmp[i] = buf[3 + i];
}
if (i == (sizeof tmp) - 1)
if (i == (sizeof tmp))
return (-1);
tmp[i] = '\0';
*size = 4 + i;
/* Ignore DA response. */
if (buf[2] == '?')
return (0);
/* Convert all arguments to numbers. */
cp = tmp;
while ((next = strsep(&cp, ";")) != NULL) {
p[n] = strtoul(next, &endptr, 10);
if (*endptr != '\0')
p[n] = 0;
n++;
if (++n == nitems(p))
break;
}
/* Add terminal features. */
switch (p[0]) {
case 62: /* VT220 */
case 63: /* VT320 */
case 64: /* VT420 */
for (i = 1; i < n; i++) {
log_debug("%s: DA feature: %d", c->name, p[i]);
if (p[i] == 4)
tty->term->flags |= TERM_SIXEL;
}
break;
}
log_debug("%s: received primary DA %.*s", c->name, (int)*size, buf);
tty_update_features(tty);
tty->flags |= TTY_HAVEDA;
return (0);
}
/*
* Handle secondary device attributes input. Returns 0 for success, -1 for
* failure, 1 for partial.
*/
static int
tty_keys_device_attributes2(struct tty *tty, const char *buf, size_t len,
size_t *size)
{
struct client *c = tty->client;
u_int i, n = 0;
char tmp[128], *endptr, p[32] = { 0 }, *cp, *next;
*size = 0;
if (tty->flags & TTY_HAVEDA2)
return (-1);
/* First three bytes are always \033[>. */
if (buf[0] != '\033')
return (-1);
if (len == 1)
return (1);
if (buf[1] != '[')
return (-1);
if (len == 2)
return (1);
if (buf[2] != '>')
return (-1);
if (len == 3)
return (1);
/* Copy the rest up to a 'c'. */
for (i = 0; i < (sizeof tmp); i++) {
if (3 + i == len)
return (1);
if (buf[3 + i] == 'c')
break;
tmp[i] = buf[3 + i];
}
if (i == (sizeof tmp))
return (-1);
tmp[i] = '\0';
*size = 4 + i;
/* Convert all arguments to numbers. */
cp = tmp;
while ((next = strsep(&cp, ";")) != NULL) {
p[n] = strtoul(next, &endptr, 10);
if (*endptr != '\0')
p[n] = 0;
if (++n == nitems(p))
break;
}
/* Add terminal features. */
@ -1311,7 +1391,7 @@ tty_keys_device_attributes(struct tty *tty, const char *buf, size_t len,
log_debug("%s: received secondary DA %.*s", c->name, (int)*size, buf);
tty_update_features(tty);
tty->flags |= TTY_HAVEDA;
tty->flags |= TTY_HAVEDA2;
return (0);
}