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TUI: kitty keyboard protocol, word movement and deletion keys

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Query CSI ? u at startup and push the disambiguate flag on the alternate
screen when the terminal answers; CSI u reports are mapped back to legacy
input (Shift/Ctrl+Enter insert a newline, Ctrl+Backspace deletes a word).
Ctrl/Alt+Left/Right move by word, Ctrl/Alt+Delete delete the next word.
Our define_key codes move above the range ncurses uses for terminfo
extended keys.
This commit is contained in:
WHC
2026-10-06 01:52:48 +08:00
parent 8efd63bb31
commit b28bca2cfc
6 changed files with 251 additions and 14 deletions
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tests/test_keymap.c
+37
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@@ -117,10 +117,47 @@ static void test_json(void) {
CHECK(cst_keymap_conflicts(&km, conf, sizeof(conf)) > 0);
}
static int kitty(int cp, int mods, int *a, int *b) {
int out[2] = {-1, -1};
int n = cst_key_from_kitty(cp, mods, out);
*a = out[0], *b = out[1];
return n;
}
static void test_kitty(void) {
int a, b;
CHECK(kitty('c', 4, &a, &b) == 1 && a == 3); /* ctrl+c */
CHECK(kitty('a', 5, &a, &b) == 1 && a == 1); /* ctrl+shift+a */
CHECK(kitty(' ', 4, &a, &b) == 1 && a == 0); /* ctrl+space */
CHECK(kitty('[', 4, &a, &b) == 1 && a == 27); /* ctrl+[ */
CHECK(kitty('b', 2, &a, &b) == 2 && a == 27 && b == 'b');
CHECK(kitty('b', 3, &a, &b) == 2 && a == 27 && b == 'B');
CHECK(kitty('1', 3, &a, &b) == 2 && a == 27 && b == '!');
CHECK(kitty('x', 6, &a, &b) == 2 && a == 27 && b == 24); /* ctrl+alt+x */
CHECK(kitty(27, 0, &a, &b) == 1 && a == 27);
CHECK(kitty(13, 0, &a, &b) == 1 && a == 13);
CHECK(kitty(13, 1, &a, &b) == 2 && a == 27 && b == 13); /* shift+enter */
CHECK(kitty(13, 4, &a, &b) == 2 && a == 27 && b == 13); /* ctrl+enter */
CHECK(kitty(127, 4, &a, &b) == 2 && a == 27 && b == 127);
CHECK(kitty(127, 1, &a, &b) == 1 && a == 127);
CHECK(kitty(9, 1, &a, &b) == 1 && a == CST_K_BTAB);
CHECK(kitty(9, 4, &a, &b) == 1 && a == 9);
CHECK(kitty('a', 8, &a, &b) == 0); /* super+a */
CHECK(kitty(5, 4, &a, &b) == 0);
/* the result goes through the keymap like legacy input */
cst_keymap_t km;
cst_keymap_defaults(&km);
int act = 0;
kitty(13, 1, &a, &b);
CHECK(lookup1(&km, b | CST_KEY_ALT, &act) == CST_KM_MATCH &&
act == CST_KA_NEWLINE);
}
int main(void) {
test_parse();
test_defaults();
test_json();
test_kitty();
puts("test_keymap: ok");
return 0;
}