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tweaks: remove some superfluous conditions 

When get_byte_kbinput() is called, it has already been determined that
the keyboard input is a digit from zero to nine (or from zero to two
for the first digit), so there is no need to check this again.
This commit is contained in:
Benno Schulenberg 2020-07-20 12:35:29 +02:00
parent 88561506c9
commit b41405233f
1 changed files with 5 additions and 10 deletions
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15
src/winio.c
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@ -951,7 +951,7 @@ int parse_kbinput(WINDOW *win)
double_esc = FALSE;
escapes = 0;
} else if (key_buffer_len == 0) {
if ('0' <= keycode && ((keycode <= '2' && digit_count == 0) ||
if ('0' <= keycode && (keycode <= '2' ||
(keycode <= '9' && digit_count > 0))) {
/* Two escapes followed by one digit, and no other codes
* are waiting: byte sequence mode. If the range of the
@ -1322,17 +1322,13 @@ int get_byte_kbinput(int kbinput)
* If yes, store it. If no, return the digit (or character) itself. */
switch (++digit_count) {
case 1:
/* The first digit (the 100's position) must be from zero to two. */
if ('0' <= kbinput && kbinput <= '2')
byte = (kbinput - '0') * 100;
else
retval = kbinput;
/* The first digit (the 100's position) is from zero to two. */
byte = (kbinput - '0') * 100;
break;
case 2:
/* The second digit (the 10's position) must be from zero to five
* if the first was two, and may be any decimal value otherwise. */
if ((byte < 200 && '0' <= kbinput && kbinput <= '9') ||
('0' <= kbinput && kbinput <= '5'))
if (byte < 200 || kbinput <= '5')
byte += (kbinput - '0') * 10;
else
retval = kbinput;
@ -1341,8 +1337,7 @@ int get_byte_kbinput(int kbinput)
/* The third digit (the 1's position) must be from zero to five
* if the first was two and the second was five, and may be any
* decimal value otherwise. */
if ((byte < 250 && '0' <= kbinput && kbinput <= '9') ||
('0' <= kbinput && kbinput <= '5')) {
if (byte < 250 || kbinput <= '5') {
byte += kbinput - '0';
/* The byte sequence is complete. */
retval = byte;