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tweaks: elide the global variable 'func_key' 

There is no need to specially flag a function key or editing key --
the keycode is indication enough in itself: outside of byte range.
master
Benno Schulenberg 2016-07-13 16:22:56 +02:00
parent 19dfd20a88
commit cb10b2b908
5 changed files with 8 additions and 20 deletions
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2
src/global.c
View File

@ -35,8 +35,6 @@ volatile sig_atomic_t sigwinch_counter = 0;
bool meta_key;
/* Whether the current keystroke is a Meta key. */
bool func_key;
/* Whether the current keystroke is an extended keypad value. */
bool focusing = TRUE;
/* Whether an update of the edit window should center the cursor. */

7
src/nano.c
View File

@ -1539,7 +1539,7 @@ void terminal_init(void)
/* Say that an unbound key was struck, and if possible which one. */
void unbound_key(int code)
{
if (func_key)
if (!is_byte(code))
statusline(ALERT, _("Unbound key"));
else if (meta_key) {
if (code == '[')
@ -1577,7 +1577,7 @@ int do_input(bool allow_funcs)
#endif
#ifndef DISABLE_MOUSE
if (func_key && input == KEY_MOUSE) {
if (input == KEY_MOUSE) {
/* We received a mouse click. */
if (do_mouse() == 1)
/* The click was on a shortcut -- read in the character
@ -1599,10 +1599,9 @@ int do_input(bool allow_funcs)
/* If we got a non-high-bit control key, a meta key sequence, or a
* function key, and it's not a shortcut or toggle, throw it out. */
if (!have_shortcut) {
if (is_ascii_cntrl_char(input) || meta_key || func_key) {
if (is_ascii_cntrl_char(input) || meta_key || !is_byte(input)) {
unbound_key(input);
meta_key = FALSE;
func_key = FALSE;
input = ERR;
}
}

6
src/prompt.c
View File

@ -66,12 +66,11 @@ int do_statusbar_input(bool *ran_func, bool *finished,
#ifndef DISABLE_MOUSE
/* If we got a mouse click and it was on a shortcut, read in the
* shortcut character. */
if (func_key && input == KEY_MOUSE) {
if (input == KEY_MOUSE) {
if (do_statusbar_mouse() == 1)
input = get_kbinput(bottomwin);
else {
meta_key = FALSE;
func_key = FALSE;
input = ERR;
}
}
@ -87,10 +86,9 @@ int do_statusbar_input(bool *ran_func, bool *finished,
/* If we got a non-high-bit control key, a meta key sequence, or a
* function key, and it's not a shortcut or toggle, throw it out. */
if (!have_shortcut) {
if (is_ascii_cntrl_char(input) || meta_key || func_key) {
if (is_ascii_cntrl_char(input) || meta_key || !is_byte(input)) {
beep();
meta_key = FALSE;
func_key = FALSE;
input = ERR;
}
}

1
src/proto.h
View File

@ -31,7 +31,6 @@ extern volatile sig_atomic_t sigwinch_counter;
#endif
extern bool meta_key;
extern bool func_key;
extern bool focusing;
extern message_type lastmessage;

12
src/winio.c
View File

@ -324,8 +324,7 @@ int get_kbinput(WINDOW *win)
/* Extract a single keystroke from the input stream. Translate escape
* sequences and extended keypad codes into their corresponding values.
* Set meta_key to TRUE when we get a meta key sequence, and set func_key
* to TRUE when we get a function key. Supported extended keypad values
* Set meta_key to TRUE when appropriate. Supported extended keypad values
* are: [arrow key], Ctrl-[arrow key], Shift-[arrow key], Enter, Backspace,
* the editing keypad (Insert, Delete, Home, End, PageUp, and PageDown),
* the function keys (F1-F16), and the numeric keypad with NumLock off. */
@ -336,7 +335,6 @@ int parse_kbinput(WINDOW *win)
int *kbinput, keycode, retval = ERR;
meta_key = FALSE;
func_key = FALSE;
/* Read in a character. */
kbinput = get_input(win, 1);
@ -633,15 +631,11 @@ int parse_kbinput(WINDOW *win)
else if (retval == controldown)
retval = sc_seq_or(do_next_block, 0);
#endif
/* If our result is an extended keypad value (i.e. a value
* outside of byte range), set func_key to TRUE. */
if (retval != ERR)
func_key = !is_byte(retval);
}
#ifdef DEBUG
fprintf(stderr, "parse_kbinput(): kbinput = %d, meta_key = %s, func_key = %s, escapes = %d, byte_digits = %d, retval = %d\n", keycode, meta_key ? "TRUE" : "FALSE", func_key ? "TRUE" : "FALSE", escapes, byte_digits, retval);
fprintf(stderr, "parse_kbinput(): kbinput = %d, meta_key = %s, escapes = %d, byte_digits = %d, retval = %d\n",
keycode, meta_key ? "TRUE" : "FALSE", escapes, byte_digits, retval);
#endif
/* Return the result. */