circlecloud/tmux
1
0
Fork 0
mirror of https://github.com/tmux/tmux.git synced 2025-09-01 04:27:00 +00:00
Code Issues Projects Releases Wiki Activity

Revamp extended keys support to more closely match xterm and support

Browse Source 
mode 2 as well as mode 1. From Stanislav Kljuhhin (GitHub issue 4038).

This changes tmux to always request mode 2 from parent terminal, change
to an unambiguous internal representation of keys, and adds an option
(extended-keys-format) to control the format similar to the xterm(1)
formatOtherKeys resource.
This commit is contained in:
nicm
2024-08-21 04:17:09 +00:00
parent de6bce057a
commit c7e61a01e5
12 changed files with 238 additions and 136 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
tty-keys.c
View File

@ -664,7 +664,7 @@ tty_keys_next(struct tty *tty)
size_t len, size;
cc_t bspace;
int delay, expired = 0, n;
key_code key;
key_code key, onlykey;
struct mouse_event m = { 0 };
struct key_event *event;
@ -801,6 +801,26 @@ first_key:
key = (u_char)buf[0];
size = 1;
}
/* C-Space is special. */
if ((key & KEYC_MASK_KEY) == C0_NUL)
key = ' ' | KEYC_CTRL | (key & KEYC_META);
/*
* Fix up all C0 control codes that don't have a dedicated key into
* corresponding Ctrl keys. Convert characters in the A-Z range into
* lowercase, so ^A becomes a|CTRL.
*/
onlykey = key & KEYC_MASK_KEY;
if (onlykey < 0x20 && onlykey != C0_BS &&
onlykey != C0_HT && onlykey != C0_CR &&
onlykey != C0_ESC) {
onlykey |= 0x40;
if (onlykey >= 'A' && onlykey <= 'Z')
onlykey |= 0x20;
key = onlykey | KEYC_CTRL | (key & KEYC_META);
}
goto complete_key;
partial_key:
@ -910,7 +930,6 @@ tty_keys_extended_key(struct tty *tty, const char *buf, size_t len,
char tmp[64];
cc_t bspace;
key_code nkey;
key_code onlykey;
struct utf8_data ud;
utf8_char uc;
@ -974,7 +993,13 @@ tty_keys_extended_key(struct tty *tty, const char *buf, size_t len,
/* Update the modifiers. */
if (modifiers > 0) {
modifiers--;
if (modifiers & 1)
/*
* The Shift modifier may not be reported in some input modes,
* which is unfortunate, as in general case determining if a
* character is shifted or not requires knowing the input
* keyboard layout. So we only fix up the trivial case.
*/
if (modifiers & 1 || (nkey >= 'A' && nkey <= 'Z'))
nkey |= KEYC_SHIFT;
if (modifiers & 2)
nkey |= (KEYC_META|KEYC_IMPLIED_META); /* Alt */
@ -984,34 +1009,15 @@ tty_keys_extended_key(struct tty *tty, const char *buf, size_t len,
nkey |= (KEYC_META|KEYC_IMPLIED_META); /* Meta */
}
/*
* Don't allow both KEYC_CTRL and as an implied modifier. Also convert
* C-X into C-x and so on.
*/
if (nkey & KEYC_CTRL) {
onlykey = (nkey & KEYC_MASK_KEY);
if (onlykey < 32 &&
onlykey != 9 &&
onlykey != 13 &&
onlykey != 27)
/* nothing */;
else if (onlykey >= 97 && onlykey <= 122)
onlykey -= 96;
else if (onlykey >= 64 && onlykey <= 95)
onlykey -= 64;
else if (onlykey == 32)
onlykey = 0;
else if (onlykey == 63)
onlykey = 127;
else
onlykey |= KEYC_CTRL;
nkey = onlykey|((nkey & KEYC_MASK_MODIFIERS) & ~KEYC_CTRL);
}
/* Convert S-Tab into Backtab. */
if ((nkey & KEYC_MASK_KEY) == '\011' && (nkey & KEYC_SHIFT))
nkey = KEYC_BTAB | (nkey & ~KEYC_MASK_KEY & ~KEYC_SHIFT);
if (log_get_level() != 0) {
log_debug("%s: extended key %.*s is %llx (%s)", c->name,
(int)*size, buf, nkey, key_string_lookup_key(nkey, 1));
}
*key = nkey;
return (0);
}