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tweaks: three escapes is the same as either zero escapes or one escape

master
Benno Schulenberg 2020-07-24 13:38:44 +02:00
parent 350115242d
commit 8dc1b97465
1 changed files with 6 additions and 20 deletions
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26
src/winio.c
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@ -925,14 +925,15 @@ int parse_kbinput(WINDOW *win)
if (keycode == ERR)
return ERR;
/* If it is an ESC, increment the counter, but trim an overabundance. */
/* Remember whether an Esc arrived by itself, and increment
* its counter, rolling around on three escapes. */
if (keycode == ESC_CODE) {
if (++escapes > 3 || digit_count > 0) {
solitary = (key_buffer_len == 0);
if (digit_count > 0) {
digit_count = 0;
escapes = 1;
}
/* Take note when an Esc arrived by itself. */
solitary = (key_buffer_len == 0);
} else if (++escapes > 2)
escapes = (solitary ? 0 : 1);
return ERR;
}
@ -1028,21 +1029,6 @@ int parse_kbinput(WINDOW *win)
}
escapes = 0;
break;
case 3:
if (key_buffer_len == 0) {
if (!solitary) {
meta_key = TRUE;
retval = (shifted_metas) ? keycode : tolower(keycode);
} else
/* Three escapes followed by a non-escape, and no
* other codes are waiting: normal input mode. */
retval = keycode;
} else
/* Three escapes followed by a non-escape, and more
* codes are waiting: escape sequence mode. */
retval = parse_escape_sequence(keycode);
escapes = 0;
break;
}
if (retval == controlleft)