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Fixes for extended keys: 1) allow C-x and C-X to be bound separately

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since some terminals report them differently 2) use the "backspace"
option to translate backspace 3) map ctrl which are have the ctrl
implied (such as C-x) properly when the terminal reports both the key
and the modifier.

Note that any key bindings for C-X where C-x is meant must now be
changed.
This commit is contained in:
nicm
2021-04-07 07:30:02 +00:00
parent 10470cea67
commit ba99996676
2 changed files with 48 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
key-string.c
View File

@@ -164,7 +164,7 @@ key_string_get_modifiers(const char **string)
key_code
key_string_lookup_string(const char *string)
{
static const char *other = "!#()+,-.0123456789:;<=>'\r\t";
static const char *other = "!#()+,-.0123456789:;<=>'\r\t\177";
key_code key, modifiers;
u_int u, i;
struct utf8_data ud, *udp;
@@ -238,11 +238,11 @@ key_string_lookup_string(const char *string)
}
/* Convert the standard control keys. */
if (key < KEYC_BASE && (modifiers & KEYC_CTRL) && !strchr(other, key)) {
if (key < KEYC_BASE && (modifiers & KEYC_CTRL) &&
strchr(other, key) == NULL &&
(key < 64 || key > 95)) {
if (key >= 97 && key <= 122)
key -= 96;
else if (key >= 64 && key <= 95)
key -= 64;
else if (key == 32)
key = 0;
else if (key == 63)

45
tty-keys.c
View File

@@ -869,6 +869,8 @@ tty_keys_extended_key(struct tty *tty, const char *buf, size_t len,
size_t end;
u_int number, modifiers;
char tmp[64];
cc_t bspace;
key_code nkey;
*size = 0;
@@ -911,38 +913,61 @@ tty_keys_extended_key(struct tty *tty, const char *buf, size_t len,
}
*size = end + 1;
/* Store the key and modifiers. */
*key = number;
/* Store the key. */
bspace = tty->tio.c_cc[VERASE];
if (bspace != _POSIX_VDISABLE && number == bspace)
nkey = KEYC_BSPACE;
else
nkey = number;
/* Update the modifiers. */
switch (modifiers) {
case 2:
(*key) |= KEYC_SHIFT;
nkey |= KEYC_SHIFT;
break;
case 3:
(*key) |= (KEYC_META|KEYC_IMPLIED_META);
nkey |= (KEYC_META|KEYC_IMPLIED_META);
break;
case 4:
(*key) |= (KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META);
nkey |= (KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META);
break;
case 5:
(*key) |= KEYC_CTRL;
nkey |= KEYC_CTRL;
break;
case 6:
(*key) |= (KEYC_SHIFT|KEYC_CTRL);
nkey |= (KEYC_SHIFT|KEYC_CTRL);
break;
case 7:
(*key) |= (KEYC_META|KEYC_CTRL);
nkey |= (KEYC_META|KEYC_CTRL);
break;
case 8:
(*key) |= (KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL);
nkey |= (KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL);
break;
default:
*key = KEYC_NONE;
break;
}
/* Don't allow both KEYC_CTRL and implied. */
if ((nkey & KEYC_CTRL) && (nkey & KEYC_MASK_KEY) < 32)
nkey &= ~KEYC_CTRL;
if ((nkey & KEYC_MASK_MODIFIERS) == KEYC_CTRL) {
nkey &= KEYC_MASK_KEY;
if (nkey >= 97 && nkey <= 122)
nkey -= 96;
else if (nkey == 32)
nkey = 0;
else if (nkey == 63)
nkey = 127;
else
nkey |= KEYC_CTRL;
}
if (log_get_level() != 0) {
log_debug("%s: extended key %.*s is %llx (%s)", c->name,
(int)*size, buf, *key, key_string_lookup_key(*key, 1));
(int)*size, buf, nkey, key_string_lookup_key(nkey, 1));
}
*key = nkey;
return (0);
}