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Merge branch 'obsd-master'

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This commit is contained in:
Thomas Adam 2016-04-27 20:01:10 +01:00
commit bac7a68023
1 changed files with 57 additions and 68 deletions
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107
tty-keys.c
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@ -41,7 +41,7 @@ static struct tty_key *tty_keys_find1(struct tty_key *, const char *, size_t,
static struct tty_key *tty_keys_find(struct tty *, const char *, size_t,
size_t *);
static int tty_keys_next1(struct tty *, const char *, size_t, key_code *,
size_t *);
size_t *, int);
static void tty_keys_callback(int, short, void *);
static int tty_keys_mouse(struct tty *, const char *, size_t, size_t *);
@ -466,7 +466,7 @@ tty_keys_find1(struct tty_key *tk, const char *buf, size_t len, size_t *size)
/* Look up part of the next key. */
static int
tty_keys_next1(struct tty *tty, const char *buf, size_t len, key_code *key,
size_t *size)
size_t *size, int expired)
{
struct tty_key *tk, *tk1;
struct utf8_data ud;
@ -474,36 +474,38 @@ tty_keys_next1(struct tty *tty, const char *buf, size_t len, key_code *key,
u_int i;
wchar_t wc;
log_debug("next key is %zu (%.*s)", len, (int)len, buf);
/* Empty buffer is a partial key. */
if (len == 0)
return (1);
log_debug("next key is %zu (%.*s) (expired=%d)", len, (int)len, buf,
expired);
/* Is this a known key? */
tk = tty_keys_find(tty, buf, len, size);
if (tk != NULL) {
if (tk != NULL && tk->key != KEYC_UNKNOWN) {
tk1 = tk;
do
log_debug("keys in list: %#llx", tk->key);
log_debug("keys in list: %#llx", tk1->key);
while ((tk1 = tk1->next) != NULL);
if (tk->next != NULL && !expired)
return (1);
*key = tk->key;
return (tk->next != NULL);
return (0);
}
/* Is this valid UTF-8? */
more = utf8_open(&ud, (u_char)*buf);
if (more == UTF8_MORE) {
*size = ud.size;
if (len < ud.size)
if (len < ud.size) {
if (!expired)
return (1);
return (-1);
}
for (i = 1; i < ud.size; i++)
more = utf8_append(&ud, (u_char)buf[i]);
if (more != UTF8_DONE)
return (0);
return (-1);
if (utf8_combine(&ud, &wc) != UTF8_DONE)
return (0);
return (-1);
*key = wc;
log_debug("UTF-8 key %.*s %#llx", (int)ud.size, buf, *key);
@ -524,7 +526,7 @@ tty_keys_next(struct tty *tty)
const char *buf;
size_t len, size;
cc_t bspace;
int delay, expired = 0;
int delay, expired = 0, n;
key_code key;
/* Get key buffer. */
@ -550,76 +552,54 @@ tty_keys_next(struct tty *tty)
}
first_key:
/* If escape is at the start, try without it. */
/* Handle keys starting with escape. */
if (*buf == '\033') {
switch (tty_keys_next1 (tty, buf + 1, len - 1, &key, &size)) {
case 0: /* found */
if (key != KEYC_UNKNOWN)
/* A single escape goes as-is if the timer has expired. */
if (expired && len == 1) {
key = '\033';
size = 1;
goto complete_key;
}
/* Look for a key without the escape. */
n = tty_keys_next1(tty, buf + 1, len - 1, &key, &size, expired);
if (n == 0) { /* found */
key |= KEYC_ESCAPE;
size++; /* include escape */
goto complete_key;
case -1: /* not found */
break;
case 1:
if (expired)
size++;
goto complete_key;
}
if (n == 1) /* partial */
goto partial_key;
}
}
/* Try with the escape. */
switch (tty_keys_next1 (tty, buf, len, &key, &size)) {
case 0: /* found */
goto complete_key;
case -1: /* not found */
break;
case 1:
if (expired)
n = tty_keys_next1(tty, buf, len, &key, &size, expired);
if (n == 0) /* found */
goto complete_key;
if (n == 1)
goto partial_key;
}
/* Is this an an xterm(1) key? */
switch (xterm_keys_find(buf, len, &size, &key)) {
case 0: /* found */
n = xterm_keys_find(buf, len, &size, &key);
if (n == 0) /* found */
goto complete_key;
case -1: /* not found */
break;
case 1:
if (expired)
break;
if (n == 1 && !expired)
goto partial_key;
}
/*
* If this starts with escape and is at least two keys, it must be
* complete even if the timer has not expired, because otherwise
* tty_keys_next1 would have found a partial key. If just an escape
* alone, it needs to wait for the timer first.
* If this is at least two keys, then it must be complete -
* whether or not the timer has expired - otherwise
* tty_keys_next1 would have returned a partial.
*/
if (*buf == '\033') {
if (len >= 2) {
key = (u_char)buf[1] | KEYC_ESCAPE;
size = 2;
goto complete_key;
}
if (!expired)
goto partial_key;
}
/* No longer key found, use the first character. */
key = (u_char)*buf;
size = 1;
/*
* Check for backspace key using termios VERASE - the terminfo
* kbs entry is extremely unreliable, so cannot be safely
* used. termios should have a better idea.
*/
bspace = tty->tio.c_cc[VERASE];
if (bspace != _POSIX_VDISABLE && key == bspace)
key = KEYC_BSPACE;
goto complete_key;
partial_key:
@ -652,6 +632,15 @@ partial_key:
complete_key:
log_debug("complete key %.*s %#llx", (int)size, buf, key);
/*
* Check for backspace key using termios VERASE - the terminfo
* kbs entry is extremely unreliable, so cannot be safely
* used. termios should have a better idea.
*/
bspace = tty->tio.c_cc[VERASE];
if (bspace != _POSIX_VDISABLE && (key & KEYC_MASK_KEY) == bspace)
key = (key & KEYC_MASK_MOD) | KEYC_BSPACE;
/* Remove data from buffer. */
evbuffer_drain(tty->event->input, size);