mirror of
git://git.sv.gnu.org/nano.git
synced 2024-11-22 21:01:24 +03:00
tweaks: add a variable, in preparation for making returning easier
This commit is contained in:
Benno Schulenberg
parent
d12fdda15b
commit
19dfd20a88
71
src/winio.c
71
src/winio.c
@ -333,7 +333,7 @@ int parse_kbinput(WINDOW *win)
|
||||
{
|
||||
static int escapes = 0, byte_digits = 0;
|
||||
static bool double_esc = FALSE;
|
||||
int *kbinput, retval = ERR;
|
||||
int *kbinput, keycode, retval = ERR;
|
||||
|
||||
meta_key = FALSE;
|
||||
func_key = FALSE;
|
||||
@ -347,38 +347,41 @@ int parse_kbinput(WINDOW *win)
|
||||
while (kbinput == NULL)
|
||||
kbinput = get_input(win, 1);
|
||||
|
||||
if (*kbinput == NANO_CONTROL_3) {
|
||||
keycode = *kbinput;
|
||||
free(kbinput);
|
||||
|
||||
if (keycode == NANO_CONTROL_3) {
|
||||
/* Increment the escape counter. */
|
||||
escapes++;
|
||||
/* If there are four consecutive escapes, discard three of them. */
|
||||
if (escapes > 3)
|
||||
escapes = 1;
|
||||
solitary = (escapes == 1 && get_key_buffer_len() == 0);
|
||||
} else if (*kbinput != ERR) {
|
||||
} else if (keycode != ERR) {
|
||||
switch (escapes) {
|
||||
case 0:
|
||||
/* One non-escape: normal input mode. */
|
||||
retval = *kbinput;
|
||||
retval = keycode;
|
||||
break;
|
||||
case 1:
|
||||
/* Reset the escape counter. */
|
||||
escapes = 0;
|
||||
if ((*kbinput != 'O' && *kbinput != 'o' && *kbinput != '[') ||
|
||||
if ((keycode != 'O' && keycode != 'o' && keycode != '[') ||
|
||||
get_key_buffer_len() == 0 || *key_buffer == 0x1B) {
|
||||
/* One escape followed by a single non-escape:
|
||||
* meta key sequence mode. */
|
||||
if (!solitary || (*kbinput >= 0x20 && *kbinput < 0x7F))
|
||||
if (!solitary || (keycode >= 0x20 && keycode < 0x7F))
|
||||
meta_key = TRUE;
|
||||
retval = tolower(*kbinput);
|
||||
retval = tolower(keycode);
|
||||
} else
|
||||
/* One escape followed by a non-escape, and there
|
||||
* are more codes waiting: escape sequence mode. */
|
||||
retval = parse_escape_sequence(win, *kbinput);
|
||||
retval = parse_escape_sequence(win, keycode);
|
||||
break;
|
||||
case 2:
|
||||
if (double_esc) {
|
||||
/* An "ESC ESC [ X" sequence from Option+arrow. */
|
||||
switch (*kbinput) {
|
||||
switch (keycode) {
|
||||
case 'A':
|
||||
retval = KEY_HOME;
|
||||
break;
|
||||
@ -397,9 +400,9 @@ int parse_kbinput(WINDOW *win)
|
||||
double_esc = FALSE;
|
||||
escapes = 0;
|
||||
} else if (get_key_buffer_len() == 0) {
|
||||
if (('0' <= *kbinput && *kbinput <= '2' &&
|
||||
byte_digits == 0) || ('0' <= *kbinput &&
|
||||
*kbinput <= '9' && byte_digits > 0)) {
|
||||
if (('0' <= keycode && keycode <= '2' &&
|
||||
byte_digits == 0) || ('0' <= keycode &&
|
||||
keycode <= '9' && byte_digits > 0)) {
|
||||
/* Two escapes followed by one or more decimal
|
||||
* digits, and there aren't any other codes
|
||||
* waiting: byte sequence mode. If the range
|
||||
@ -409,7 +412,7 @@ int parse_kbinput(WINDOW *win)
|
||||
int byte;
|
||||
|
||||
byte_digits++;
|
||||
byte = get_byte_kbinput(*kbinput);
|
||||
byte = get_byte_kbinput(keycode);
|
||||
|
||||
/* If we've read in a complete byte sequence,
|
||||
* reset the escape counter and the byte sequence
|
||||
@ -447,16 +450,16 @@ int parse_kbinput(WINDOW *win)
|
||||
* create a byte sequence greater than 2XX)
|
||||
* and there aren't any other codes waiting:
|
||||
* control character sequence mode. */
|
||||
retval = get_control_kbinput(*kbinput);
|
||||
retval = get_control_kbinput(keycode);
|
||||
else {
|
||||
/* An invalid digit in the middle of a byte
|
||||
* sequence: reset the byte sequence counter
|
||||
* and save the code we got as the result. */
|
||||
byte_digits = 0;
|
||||
retval = *kbinput;
|
||||
retval = keycode;
|
||||
}
|
||||
}
|
||||
} else if (*kbinput == '[' && key_buffer_len > 0 &&
|
||||
} else if (keycode == '[' && key_buffer_len > 0 &&
|
||||
'A' <= *key_buffer && *key_buffer <= 'D') {
|
||||
/* This is an iTerm2 sequence: ^[ ^[ [ X. */
|
||||
double_esc = TRUE;
|
||||
@ -466,7 +469,7 @@ int parse_kbinput(WINDOW *win)
|
||||
* sequence mode. */
|
||||
escapes = 0;
|
||||
meta_key = TRUE;
|
||||
retval = parse_escape_sequence(win, *kbinput);
|
||||
retval = parse_escape_sequence(win, keycode);
|
||||
}
|
||||
break;
|
||||
case 3:
|
||||
@ -475,14 +478,14 @@ int parse_kbinput(WINDOW *win)
|
||||
if (get_key_buffer_len() == 0)
|
||||
/* Three escapes followed by a non-escape, and no
|
||||
* other codes are waiting: normal input mode. */
|
||||
retval = *kbinput;
|
||||
retval = keycode;
|
||||
else
|
||||
/* Three escapes followed by a non-escape, and more
|
||||
* codes are waiting: combined control character and
|
||||
* escape sequence mode. First interpret the escape
|
||||
* sequence, then the result as a control sequence. */
|
||||
retval = get_control_kbinput(
|
||||
parse_escape_sequence(win, *kbinput));
|
||||
parse_escape_sequence(win, keycode));
|
||||
break;
|
||||
}
|
||||
}
|
||||
@ -494,28 +497,28 @@ int parse_kbinput(WINDOW *win)
|
||||
case KEY_SLEFT:
|
||||
#endif
|
||||
case KEY_LEFT:
|
||||
retval = sc_seq_or(do_left, *kbinput);
|
||||
retval = sc_seq_or(do_left, keycode);
|
||||
break;
|
||||
#ifdef KEY_SRIGHT
|
||||
/* Slang doesn't support KEY_SRIGHT. */
|
||||
case KEY_SRIGHT:
|
||||
#endif
|
||||
case KEY_RIGHT:
|
||||
retval = sc_seq_or(do_right, *kbinput);
|
||||
retval = sc_seq_or(do_right, keycode);
|
||||
break;
|
||||
#ifdef KEY_SUP
|
||||
/* ncurses and Slang don't support KEY_SUP. */
|
||||
case KEY_SUP:
|
||||
#endif
|
||||
case KEY_UP:
|
||||
retval = sc_seq_or(do_up_void, *kbinput);
|
||||
retval = sc_seq_or(do_up_void, keycode);
|
||||
break;
|
||||
#ifdef KEY_SDOWN
|
||||
/* ncurses and Slang don't support KEY_SDOWN. */
|
||||
case KEY_SDOWN:
|
||||
#endif
|
||||
case KEY_DOWN:
|
||||
retval = sc_seq_or(do_down_void, *kbinput);
|
||||
retval = sc_seq_or(do_down_void, keycode);
|
||||
break;
|
||||
#ifdef KEY_SHOME
|
||||
/* HP-UX 10-11 and Slang don't support KEY_SHOME. */
|
||||
@ -525,7 +528,7 @@ int parse_kbinput(WINDOW *win)
|
||||
case KEY_HOME:
|
||||
#endif
|
||||
case KEY_A1: /* Home (7) on keypad with NumLock off. */
|
||||
retval = sc_seq_or(do_home, *kbinput);
|
||||
retval = sc_seq_or(do_home, keycode);
|
||||
break;
|
||||
#ifdef KEY_SEND
|
||||
/* HP-UX 10-11 and Slang don't support KEY_SEND. */
|
||||
@ -535,22 +538,22 @@ int parse_kbinput(WINDOW *win)
|
||||
case KEY_END:
|
||||
#endif
|
||||
case KEY_C1: /* End (1) on keypad with NumLock off. */
|
||||
retval = sc_seq_or(do_end, *kbinput);
|
||||
retval = sc_seq_or(do_end, keycode);
|
||||
break;
|
||||
case KEY_PPAGE:
|
||||
case KEY_A3: /* PageUp (9) on keypad with NumLock off. */
|
||||
retval = sc_seq_or(do_page_up, *kbinput);
|
||||
retval = sc_seq_or(do_page_up, keycode);
|
||||
break;
|
||||
case KEY_NPAGE:
|
||||
case KEY_C3: /* PageDown (3) on keypad with NumLock off. */
|
||||
retval = sc_seq_or(do_page_down, *kbinput);
|
||||
retval = sc_seq_or(do_page_down, keycode);
|
||||
break;
|
||||
|
||||
case KEY_ENTER:
|
||||
retval = sc_seq_or(do_enter, *kbinput);
|
||||
retval = sc_seq_or(do_enter, keycode);
|
||||
break;
|
||||
case KEY_BACKSPACE:
|
||||
retval = sc_seq_or(do_backspace, *kbinput);
|
||||
retval = sc_seq_or(do_backspace, keycode);
|
||||
break;
|
||||
#ifdef KEY_SDC
|
||||
/* Slang doesn't support KEY_SDC. */
|
||||
@ -558,14 +561,14 @@ int parse_kbinput(WINDOW *win)
|
||||
#endif
|
||||
case NANO_CONTROL_8:
|
||||
if (ISSET(REBIND_DELETE))
|
||||
retval = sc_seq_or(do_delete, *kbinput);
|
||||
retval = sc_seq_or(do_delete, keycode);
|
||||
else
|
||||
retval = sc_seq_or(do_backspace, *kbinput);
|
||||
retval = sc_seq_or(do_backspace, keycode);
|
||||
break;
|
||||
#ifdef KEY_SIC
|
||||
/* Slang doesn't support KEY_SIC. */
|
||||
case KEY_SIC:
|
||||
retval = sc_seq_or(do_insertfile_void, *kbinput);
|
||||
retval = sc_seq_or(do_insertfile_void, keycode);
|
||||
break;
|
||||
#endif
|
||||
#ifdef KEY_SBEG
|
||||
@ -638,11 +641,9 @@ int parse_kbinput(WINDOW *win)
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
fprintf(stderr, "parse_kbinput(): kbinput = %d, meta_key = %s, func_key = %s, escapes = %d, byte_digits = %d, retval = %d\n", *kbinput, meta_key ? "TRUE" : "FALSE", func_key ? "TRUE" : "FALSE", escapes, byte_digits, retval);
|
||||
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);
|
||||
#endif
|
||||
|
||||
free(kbinput);
|
||||
|
||||
/* Return the result. */
|
||||
return retval;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user