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terminal-unix: attempt to support more CTRL 

Hysterically stupid inconsistent legacy garbage from the 70ies or maybe
even 60ies. What the fuck. I fucking hate computers so much.

Fixes: #8072
This commit is contained in:
wm4 2020-09-10 23:03:30 +02:00
parent 92e7f75bec
commit f250c29403
1 changed files with 14 additions and 6 deletions
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20
osdep/terminal-unix.c
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@ -212,23 +212,31 @@ static bool getch2(struct input_ctx *input_ctx)
}
if (!match) { // normal or unknown key
int mods = 0;
if (buf.b[0] == '\033') {
skip_buf(&buf, 1);
if (buf.len > 0 && mp_isalnum(buf.b[0])) { // meta+normal key
mp_input_put_key(input_ctx, buf.b[0] | MP_KEY_MODIFIER_ALT);
skip_buf(&buf, 1);
if (buf.len > 0 && buf.b[0] > 0 && buf.b[0] < 127) {
// meta+normal key
mods |= MP_KEY_MODIFIER_ALT;
} else if (buf.len == 1 && buf.b[0] == '\033') {
// Make 2x ESC -> ESC (lone ESC is ambiguous).
mp_input_put_key(input_ctx, MP_KEY_ESC);
skip_buf(&buf, 1);
continue;
} else {
// Throw it away. Typically, this will be a complete,
// unsupported sequence, and dropping this will skip it.
skip_buf(&buf, buf.len);
continue;
}
} else {
mp_input_put_key(input_ctx, buf.b[0]);
skip_buf(&buf, 1);
}
unsigned char c = buf.b[0];
skip_buf(&buf, 1);
if (c < 32) {
c = c <= 25 ? (c + 'a' - 1) : (c - 25 + '2' - 1);
mods |= MP_KEY_MODIFIER_CTRL;
}
mp_input_put_key(input_ctx, c | mods);
continue;
}