tweaks: normalize the indentation after the previous change

This finally gets rid of the piece of specially reduced indentation
(<-<- ... ->->) that made it hard to see the structure of the code.
This commit is contained in:
Benno Schulenberg 2020-08-08 19:44:54 +02:00
parent c14e77ce9e
commit 12fe0a3b29
1 changed files with 461 additions and 463 deletions

View File

@ -331,133 +331,133 @@ int arrow_from_ABCD(int letter)
/* Translate a sequence that began with "Esc O" to its corresponding key code. */
int convert_SS3_sequence(const int *seq, size_t length, int *consumed)
{
switch (seq[0]) {
case '1':
if (length > 3 && seq[1] == ';') {
*consumed = 4;
switch (seq[2]) {
case '2':
switch (seq[3]) {
case 'A': /* Esc O 1 ; 2 A == Shift-Up on Terminal. */
case 'B': /* Esc O 1 ; 2 B == Shift-Down on Terminal. */
case 'C': /* Esc O 1 ; 2 C == Shift-Right on Terminal. */
case 'D': /* Esc O 1 ; 2 D == Shift-Left on Terminal. */
shift_held = TRUE;
return arrow_from_ABCD(seq[3]);
}
break;
case '5':
switch (seq[3]) {
case 'A': /* Esc O 1 ; 5 A == Ctrl-Up on Terminal. */
return CONTROL_UP;
case 'B': /* Esc O 1 ; 5 B == Ctrl-Down on Terminal. */
return CONTROL_DOWN;
case 'C': /* Esc O 1 ; 5 C == Ctrl-Right on Terminal. */
return CONTROL_RIGHT;
case 'D': /* Esc O 1 ; 5 D == Ctrl-Left on Terminal. */
return CONTROL_LEFT;
}
break;
}
switch (seq[0]) {
case '1':
if (length > 3 && seq[1] == ';') {
*consumed = 4;
switch (seq[2]) {
case '2':
switch (seq[3]) {
case 'A': /* Esc O 1 ; 2 A == Shift-Up on Terminal. */
case 'B': /* Esc O 1 ; 2 B == Shift-Down on Terminal. */
case 'C': /* Esc O 1 ; 2 C == Shift-Right on Terminal. */
case 'D': /* Esc O 1 ; 2 D == Shift-Left on Terminal. */
shift_held = TRUE;
return arrow_from_ABCD(seq[3]);
}
break;
case '5':
switch (seq[3]) {
case 'A': /* Esc O 1 ; 5 A == Ctrl-Up on Terminal. */
return CONTROL_UP;
case 'B': /* Esc O 1 ; 5 B == Ctrl-Down on Terminal. */
return CONTROL_DOWN;
case 'C': /* Esc O 1 ; 5 C == Ctrl-Right on Terminal. */
return CONTROL_RIGHT;
case 'D': /* Esc O 1 ; 5 D == Ctrl-Left on Terminal. */
return CONTROL_LEFT;
}
break;
}
break;
case '2': /* Shift */
case '3': /* Alt */
case '4': /* Shift+Alt */
case '5': /* Ctrl */
case '6': /* Shift+Ctrl */
case '7': /* Alt+Ctrl */
case '8': /* Shift+Alt+Ctrl */
if (length > 1) {
*consumed = 2;
/* Do not accept multiple modifiers. */
if (seq[0] == '4' || seq[0] > '5')
return FOREIGN_SEQUENCE;
}
break;
case '2': /* Shift */
case '3': /* Alt */
case '4': /* Shift+Alt */
case '5': /* Ctrl */
case '6': /* Shift+Ctrl */
case '7': /* Alt+Ctrl */
case '8': /* Shift+Alt+Ctrl */
if (length > 1) {
*consumed = 2;
/* Do not accept multiple modifiers. */
if (seq[0] == '4' || seq[0] > '5')
return FOREIGN_SEQUENCE;
#ifndef NANO_TINY
switch (seq[1]) {
case 'A': /* Esc O 5 A == Ctrl-Up on Haiku. */
return CONTROL_UP;
case 'B': /* Esc O 5 B == Ctrl-Down on Haiku. */
return CONTROL_DOWN;
case 'C': /* Esc O 5 C == Ctrl-Right on Haiku. */
return CONTROL_RIGHT;
case 'D': /* Esc O 5 D == Ctrl-Left on Haiku. */
return CONTROL_LEFT;
}
#endif
/* Translate Shift+digit on the keypad to the digit
* (Esc O 2 p == Shift-0, ...), modifier+operator to
* the operator, and modifier+Enter to CR. */
return (seq[1] - 0x40);
switch (seq[1]) {
case 'A': /* Esc O 5 A == Ctrl-Up on Haiku. */
return CONTROL_UP;
case 'B': /* Esc O 5 B == Ctrl-Down on Haiku. */
return CONTROL_DOWN;
case 'C': /* Esc O 5 C == Ctrl-Right on Haiku. */
return CONTROL_RIGHT;
case 'D': /* Esc O 5 D == Ctrl-Left on Haiku. */
return CONTROL_LEFT;
}
break;
case 'A': /* Esc O A == Up on VT100/VT320. */
case 'B': /* Esc O B == Down on VT100/VT320. */
case 'C': /* Esc O C == Right on VT100/VT320. */
case 'D': /* Esc O D == Left on VT100/VT320. */
return arrow_from_ABCD(seq[0]);
case 'F': /* Esc O F == End on old xterm. */
return KEY_END;
case 'H': /* Esc O H == Home on old xterm. */
return KEY_HOME;
case 'M': /* Esc O M == Enter on numeric keypad
* with NumLock off on VT100/VT220/VT320. */
return KEY_ENTER;
case 'P': /* Esc O P == F1 on VT100/VT220/VT320/Mach console. */
case 'Q': /* Esc O Q == F2 on VT100/VT220/VT320/Mach console. */
case 'R': /* Esc O R == F3 on VT100/VT220/VT320/Mach console. */
case 'S': /* Esc O S == F4 on VT100/VT220/VT320/Mach console. */
case 'T': /* Esc O T == F5 on Mach console. */
case 'U': /* Esc O U == F6 on Mach console. */
case 'V': /* Esc O V == F7 on Mach console. */
case 'W': /* Esc O W == F8 on Mach console. */
case 'X': /* Esc O X == F9 on Mach console. */
case 'Y': /* Esc O Y == F10 on Mach console. */
return KEY_F(seq[0] - 'O');
case 'a': /* Esc O a == Ctrl-Up on rxvt/Eterm. */
return CONTROL_UP;
case 'b': /* Esc O b == Ctrl-Down on rxvt/Eterm. */
return CONTROL_DOWN;
case 'c': /* Esc O c == Ctrl-Right on rxvt/Eterm. */
return CONTROL_RIGHT;
case 'd': /* Esc O d == Ctrl-Left on rxvt/Eterm. */
return CONTROL_LEFT;
case 'j': /* Esc O j == '*' on numeric keypad with
* NumLock off on xterm/rxvt/Eterm. */
return '*';
case 'k': /* Esc O k == '+' on the same. */
return '+';
case 'l': /* Esc O l == ',' on VT100/VT220/VT320. */
return ',';
case 'm': /* Esc O m == '-' on numeric keypad with
* NumLock off on VTnnn/xterm/rxvt/Eterm. */
return '-';
case 'n': /* Esc O n == Delete (.) on numeric keypad
* with NumLock off on rxvt/Eterm. */
return KEY_DC;
case 'o': /* Esc O o == '/' on numeric keypad with
* NumLock off on VTnnn/xterm/rxvt/Eterm. */
return '/';
case 'p': /* Esc O p == Insert (0) on numeric keypad
* with NumLock off on rxvt/Eterm. */
return KEY_IC;
case 'q': /* Esc O q == End (1) on the same. */
return KEY_END;
case 'r': /* Esc O r == Down (2) on the same. */
return KEY_DOWN;
case 's': /* Esc O s == PageDown (3) on the same. */
return KEY_NPAGE;
case 't': /* Esc O t == Left (4) on the same. */
return KEY_LEFT;
case 'v': /* Esc O v == Right (6) on the same. */
return KEY_RIGHT;
case 'w': /* Esc O w == Home (7) on the same. */
return KEY_HOME;
case 'x': /* Esc O x == Up (8) on the same. */
return KEY_UP;
case 'y': /* Esc O y == PageUp (9) on the same. */
return KEY_PPAGE;
}
#endif
/* Translate Shift+digit on the keypad to the digit
* (Esc O 2 p == Shift-0, ...), modifier+operator to
* the operator, and modifier+Enter to CR. */
return (seq[1] - 0x40);
}
break;
case 'A': /* Esc O A == Up on VT100/VT320. */
case 'B': /* Esc O B == Down on VT100/VT320. */
case 'C': /* Esc O C == Right on VT100/VT320. */
case 'D': /* Esc O D == Left on VT100/VT320. */
return arrow_from_ABCD(seq[0]);
case 'F': /* Esc O F == End on old xterm. */
return KEY_END;
case 'H': /* Esc O H == Home on old xterm. */
return KEY_HOME;
case 'M': /* Esc O M == Enter on numeric keypad
* with NumLock off on VT100/VT220/VT320. */
return KEY_ENTER;
case 'P': /* Esc O P == F1 on VT100/VT220/VT320/Mach console. */
case 'Q': /* Esc O Q == F2 on VT100/VT220/VT320/Mach console. */
case 'R': /* Esc O R == F3 on VT100/VT220/VT320/Mach console. */
case 'S': /* Esc O S == F4 on VT100/VT220/VT320/Mach console. */
case 'T': /* Esc O T == F5 on Mach console. */
case 'U': /* Esc O U == F6 on Mach console. */
case 'V': /* Esc O V == F7 on Mach console. */
case 'W': /* Esc O W == F8 on Mach console. */
case 'X': /* Esc O X == F9 on Mach console. */
case 'Y': /* Esc O Y == F10 on Mach console. */
return KEY_F(seq[0] - 'O');
case 'a': /* Esc O a == Ctrl-Up on rxvt/Eterm. */
return CONTROL_UP;
case 'b': /* Esc O b == Ctrl-Down on rxvt/Eterm. */
return CONTROL_DOWN;
case 'c': /* Esc O c == Ctrl-Right on rxvt/Eterm. */
return CONTROL_RIGHT;
case 'd': /* Esc O d == Ctrl-Left on rxvt/Eterm. */
return CONTROL_LEFT;
case 'j': /* Esc O j == '*' on numeric keypad with
* NumLock off on xterm/rxvt/Eterm. */
return '*';
case 'k': /* Esc O k == '+' on the same. */
return '+';
case 'l': /* Esc O l == ',' on VT100/VT220/VT320. */
return ',';
case 'm': /* Esc O m == '-' on numeric keypad with
* NumLock off on VTnnn/xterm/rxvt/Eterm. */
return '-';
case 'n': /* Esc O n == Delete (.) on numeric keypad
* with NumLock off on rxvt/Eterm. */
return KEY_DC;
case 'o': /* Esc O o == '/' on numeric keypad with
* NumLock off on VTnnn/xterm/rxvt/Eterm. */
return '/';
case 'p': /* Esc O p == Insert (0) on numeric keypad
* with NumLock off on rxvt/Eterm. */
return KEY_IC;
case 'q': /* Esc O q == End (1) on the same. */
return KEY_END;
case 'r': /* Esc O r == Down (2) on the same. */
return KEY_DOWN;
case 's': /* Esc O s == PageDown (3) on the same. */
return KEY_NPAGE;
case 't': /* Esc O t == Left (4) on the same. */
return KEY_LEFT;
case 'v': /* Esc O v == Right (6) on the same. */
return KEY_RIGHT;
case 'w': /* Esc O w == Home (7) on the same. */
return KEY_HOME;
case 'x': /* Esc O x == Up (8) on the same. */
return KEY_UP;
case 'y': /* Esc O y == PageUp (9) on the same. */
return KEY_PPAGE;
}
return FOREIGN_SEQUENCE;
}
@ -465,347 +465,345 @@ int convert_SS3_sequence(const int *seq, size_t length, int *consumed)
/* Translate a sequence that began with "Esc [" to its corresponding key code. */
int convert_CSI_sequence(const int *seq, size_t length, int *consumed)
{
if (seq[0] < '9')
*consumed = 2;
switch (seq[0]) {
case '1':
if (length > 1 && seq[1] == '~')
/* Esc [ 1 ~ == Home on VT320/Linux console. */
return KEY_HOME;
else if (length > 2 && seq[2] == '~') {
*consumed = 3;
switch (seq[1]) {
case '1': /* Esc [ 1 1 ~ == F1 on rxvt/Eterm. */
case '2': /* Esc [ 1 2 ~ == F2 on rxvt/Eterm. */
case '3': /* Esc [ 1 3 ~ == F3 on rxvt/Eterm. */
case '4': /* Esc [ 1 4 ~ == F4 on rxvt/Eterm. */
case '5': /* Esc [ 1 5 ~ == F5 on xterm/rxvt/Eterm. */
return KEY_F(seq[1] - '0');
case '7': /* Esc [ 1 7 ~ == F6 on VT220/VT320/
* Linux console/xterm/rxvt/Eterm. */
case '8': /* Esc [ 1 8 ~ == F7 on the same. */
case '9': /* Esc [ 1 9 ~ == F8 on the same. */
return KEY_F(seq[1] - '1');
}
} else if (length > 3 && seq[1] == ';') {
/* <-<-<-<-<-<-<- */
*consumed = 4;
switch (seq[2]) {
case '2':
switch (seq[3]) {
case 'A': /* Esc [ 1 ; 2 A == Shift-Up on xterm. */
case 'B': /* Esc [ 1 ; 2 B == Shift-Down on xterm. */
case 'C': /* Esc [ 1 ; 2 C == Shift-Right on xterm. */
case 'D': /* Esc [ 1 ; 2 D == Shift-Left on xterm. */
shift_held = TRUE;
return arrow_from_ABCD(seq[3]);
#ifndef NANO_TINY
case 'F': /* Esc [ 1 ; 2 F == Shift-End on xterm. */
return SHIFT_END;
case 'H': /* Esc [ 1 ; 2 H == Shift-Home on xterm. */
return SHIFT_HOME;
#endif
}
break;
#ifndef NANO_TINY
case '9': /* To accommodate iTerm2 in "xterm mode". */
case '3':
switch (seq[3]) {
case 'A': /* Esc [ 1 ; 3 A == Alt-Up on xterm. */
return ALT_UP;
case 'B': /* Esc [ 1 ; 3 B == Alt-Down on xterm. */
return ALT_DOWN;
case 'C': /* Esc [ 1 ; 3 C == Alt-Right on xterm. */
return ALT_RIGHT;
case 'D': /* Esc [ 1 ; 3 D == Alt-Left on xterm. */
return ALT_LEFT;
}
break;
case '4':
/* When the arrow keys are held together with Shift+Meta,
* act as if they are Home/End/PgUp/PgDown with Shift. */
switch (seq[3]) {
case 'A': /* Esc [ 1 ; 4 A == Shift-Alt-Up on xterm. */
return SHIFT_PAGEUP;
case 'B': /* Esc [ 1 ; 4 B == Shift-Alt-Down on xterm. */
return SHIFT_PAGEDOWN;
case 'C': /* Esc [ 1 ; 4 C == Shift-Alt-Right on xterm. */
return SHIFT_END;
case 'D': /* Esc [ 1 ; 4 D == Shift-Alt-Left on xterm. */
return SHIFT_HOME;
}
break;
#endif
case '5':
switch (seq[3]) {
case 'A': /* Esc [ 1 ; 5 A == Ctrl-Up on xterm. */
return CONTROL_UP;
case 'B': /* Esc [ 1 ; 5 B == Ctrl-Down on xterm. */
return CONTROL_DOWN;
case 'C': /* Esc [ 1 ; 5 C == Ctrl-Right on xterm. */
return CONTROL_RIGHT;
case 'D': /* Esc [ 1 ; 5 D == Ctrl-Left on xterm. */
return CONTROL_LEFT;
case 'F': /* Esc [ 1 ; 5 F == Ctrl-End on xterm. */
return CONTROL_END;
case 'H': /* Esc [ 1 ; 5 H == Ctrl-Home on xterm. */
return CONTROL_HOME;
}
break;
#ifndef NANO_TINY
case '6':
switch (seq[3]) {
case 'A': /* Esc [ 1 ; 6 A == Shift-Ctrl-Up on xterm. */
return shiftcontrolup;
case 'B': /* Esc [ 1 ; 6 B == Shift-Ctrl-Down on xterm. */
return shiftcontroldown;
case 'C': /* Esc [ 1 ; 6 C == Shift-Ctrl-Right on xterm. */
return shiftcontrolright;
case 'D': /* Esc [ 1 ; 6 D == Shift-Ctrl-Left on xterm. */
return shiftcontrolleft;
case 'F': /* Esc [ 1 ; 6 F == Shift-Ctrl-End on xterm. */
return shiftcontrolend;
case 'H': /* Esc [ 1 ; 6 H == Shift-Ctrl-Home on xterm. */
return shiftcontrolhome;
}
break;
#endif
}
/* ->->->->->->-> */
} else if (length > 4 && seq[2] == ';' && seq[4] == '~')
/* Esc [ 1 n ; 2 ~ == F17...F20 on some terminals. */
*consumed = 5;
#ifdef USE_SLANG
else if (length == 3 && seq[2] == ';')
/* Discard broken sequences that Slang produces. */
*consumed = 3;
#endif
break;
case '2':
if (length > 2 && seq[2] == '~') {
*consumed = 3;
switch (seq[1]) {
case '0': /* Esc [ 2 0 ~ == F9 on VT220/VT320/
* Linux console/xterm/rxvt/Eterm. */
return KEY_F(9);
case '1': /* Esc [ 2 1 ~ == F10 on the same. */
return KEY_F(10);
case '3': /* Esc [ 2 3 ~ == F11 on the same. */
return KEY_F(11);
case '4': /* Esc [ 2 4 ~ == F12 on the same. */
return KEY_F(12);
}
} else if (length > 1 && seq[1] == '~')
/* Esc [ 2 ~ == Insert on VT220/VT320/
* Linux console/xterm/Terminal. */
return KEY_IC;
else if (length > 3 && seq[1] == ';' && seq[3] == '~') {
/* Esc [ 2 ; x ~ == modified Insert on xterm. */
*consumed = 4;
#ifndef NANO_TINY
if (seq[2] == '3')
return ALT_INSERT;
#endif
}
else if (length > 4 && seq[2] == ';' && seq[4] == '~')
/* Esc [ 2 n ; 2 ~ == F21...F24 on some terminals. */
*consumed = 5;
#ifdef USE_SLANG
else if (length == 3 && seq[2] == ';')
/* Discard broken sequences that Slang produces. */
*consumed = 3;
#endif
#ifndef NANO_TINY
else if (length > 3 && seq[1] == '0' && seq[3] == '~') {
/* Esc [ 2 0 0 ~ == start of a bracketed paste,
* Esc [ 2 0 1 ~ == end of a bracketed paste. */
*consumed = 4;
if (seq[2] == '0') {
bracketed_paste = TRUE;
return BRACKETED_PASTE_MARKER;
} else if (seq[2] == '1') {
bracketed_paste = FALSE;
return BRACKETED_PASTE_MARKER;
}
}
#endif
break;
case '3': /* Esc [ 3 ~ == Delete on VT220/VT320/
* Linux console/xterm/Terminal. */
if (length > 1 && seq[1] == '~')
return KEY_DC;
if (length > 3 && seq[1] == ';' && seq[3] == '~') {
*consumed = 4;
#ifndef NANO_TINY
if (seq[2] == '2')
/* Esc [ 3 ; 2 ~ == Shift-Delete on xterm/Terminal. */
return SHIFT_DELETE;
if (seq[2] == '3')
/* Esc [ 3 ; 3 ~ == Alt-Delete on xterm/rxvt/Eterm/Terminal. */
return ALT_DELETE;
if (seq[2] == '5')
/* Esc [ 3 ; 5 ~ == Ctrl-Delete on xterm. */
return CONTROL_DELETE;
if (seq[2] == '6')
/* Esc [ 3 ; 6 ~ == Ctrl-Shift-Delete on xterm. */
return controlshiftdelete;
#endif
}
#ifndef NANO_TINY
if (length > 1 && seq[1] == '$')
/* Esc [ 3 $ == Shift-Delete on urxvt. */
return SHIFT_DELETE;
if (length > 1 && seq[1] == '^')
/* Esc [ 3 ^ == Ctrl-Delete on urxvt. */
return CONTROL_DELETE;
if (length > 1 && seq[1] == '@')
/* Esc [ 3 @ == Ctrl-Shift-Delete on urxvt. */
return controlshiftdelete;
if (length > 2 && seq[2] == '~')
/* Esc [ 3 n ~ == F17...F20 on some terminals. */
*consumed = 3;
#endif
break;
case '4': /* Esc [ 4 ~ == End on VT220/VT320/
* Linux console/xterm. */
if (length > 1 && seq[1] == '~')
return KEY_END;
break;
case '5': /* Esc [ 5 ~ == PageUp on VT220/VT320/
* Linux console/xterm/Eterm/urxvt/Terminal */
if (length > 1 && seq[1] == '~')
return KEY_PPAGE;
else if (length > 3 && seq[1] == ';' && seq[3] == '~') {
*consumed = 4;
#ifndef NANO_TINY
if (seq[2] == '2')
return shiftaltup;
if (seq[2] == '3')
return ALT_PAGEUP;
#endif
}
break;
case '6': /* Esc [ 6 ~ == PageDown on VT220/VT320/
* Linux console/xterm/Eterm/urxvt/Terminal */
if (length > 1 && seq[1] == '~')
return KEY_NPAGE;
else if (length > 3 && seq[1] == ';' && seq[3] == '~') {
*consumed = 4;
#ifndef NANO_TINY
if (seq[2] == '2')
return shiftaltdown;
if (seq[2] == '3')
return ALT_PAGEDOWN;
#endif
}
break;
case '7': /* Esc [ 7 ~ == Home on Eterm/rxvt;
* Esc [ 7 $ == Shift-Home on Eterm/rxvt;
* Esc [ 7 ^ == Control-Home on Eterm/rxvt;
* Esc [ 7 @ == Shift-Control-Home on same. */
if (length > 1 && seq[1] == '~')
return KEY_HOME;
else if (length > 1 && seq[1] == '$')
return SHIFT_HOME;
else if (length > 1 && seq[1] == '^')
return CONTROL_HOME;
#ifndef NANO_TINY
else if (length > 1 && seq[1] == '@')
return shiftcontrolhome;
#endif
break;
case '8': /* Esc [ 8 ~ == End on Eterm/rxvt;
* Esc [ 8 $ == Shift-End on Eterm/rxvt;
* Esc [ 8 ^ == Control-End on Eterm/rxvt;
* Esc [ 8 @ == Shift-Control-End on same. */
if (length > 1 && seq[1] == '~')
return KEY_END;
else if (length > 1 && seq[1] == '$')
return SHIFT_END;
else if (length > 1 && seq[1] == '^')
return CONTROL_END;
#ifndef NANO_TINY
else if (length > 1 && seq[1] == '@')
return shiftcontrolend;
#endif
break;
case '9': /* Esc [ 9 == Delete on Mach console. */
return KEY_DC;
case '@': /* Esc [ @ == Insert on Mach console. */
return KEY_IC;
case 'A': /* Esc [ A == Up on ANSI/VT220/Linux console/
* FreeBSD console/Mach console/xterm/Eterm/
* urxvt/Gnome and Xfce Terminal. */
case 'B': /* Esc [ B == Down on the same. */
case 'C': /* Esc [ C == Right on the same. */
case 'D': /* Esc [ D == Left on the same. */
return arrow_from_ABCD(seq[0]);
case 'F': /* Esc [ F == End on FreeBSD console/Eterm. */
return KEY_END;
case 'G': /* Esc [ G == PageDown on FreeBSD console. */
return KEY_NPAGE;
case 'H': /* Esc [ H == Home on ANSI/VT220/FreeBSD
* console/Mach console/Eterm. */
if (seq[0] < '9')
*consumed = 2;
switch (seq[0]) {
case '1':
if (length > 1 && seq[1] == '~')
/* Esc [ 1 ~ == Home on VT320/Linux console. */
return KEY_HOME;
case 'I': /* Esc [ I == PageUp on FreeBSD console. */
return KEY_PPAGE;
case 'L': /* Esc [ L == Insert on ANSI/FreeBSD console. */
return KEY_IC;
case 'M': /* Esc [ M == F1 on FreeBSD console. */
return KEY_F(1);
case 'N': /* Esc [ N == F2 on FreeBSD console. */
return KEY_F(2);
case 'O':
if (length > 1) {
*consumed = 2;
if ('O' < seq[1] && seq[1] < 'T')
/* Esc [ O P == F1 on xterm. */
/* Esc [ O Q == F2 on xterm. */
/* Esc [ O R == F3 on xterm. */
/* Esc [ O S == F4 on xterm. */
return KEY_F(seq[1] - 'O');
} else
/* Esc [ O == F3 on FreeBSD console. */
return KEY_F(3);
break;
case 'P': /* Esc [ P == F4 on FreeBSD console. */
case 'Q': /* Esc [ Q == F5 on FreeBSD console. */
case 'R': /* Esc [ R == F6 on FreeBSD console. */
case 'S': /* Esc [ S == F7 on FreeBSD console. */
case 'T': /* Esc [ T == F8 on FreeBSD console. */
return KEY_F(4 + seq[0] - 'P');
case 'U': /* Esc [ U == PageDown on Mach console. */
return KEY_NPAGE;
case 'V': /* Esc [ V == PageUp on Mach console. */
return KEY_PPAGE;
case 'W': /* Esc [ W == F11 on FreeBSD console. */
return KEY_F(11);
case 'X': /* Esc [ X == F12 on FreeBSD console. */
return KEY_F(12);
case 'Y': /* Esc [ Y == End on Mach console. */
return KEY_END;
case 'Z': /* Esc [ Z == Shift-Tab on ANSI/Linux console/
* FreeBSD console/xterm/rxvt/Terminal. */
return SHIFT_TAB;
case 'a': /* Esc [ a == Shift-Up on rxvt/Eterm. */
case 'b': /* Esc [ b == Shift-Down on rxvt/Eterm. */
case 'c': /* Esc [ c == Shift-Right on rxvt/Eterm. */
case 'd': /* Esc [ d == Shift-Left on rxvt/Eterm. */
shift_held = TRUE;
return arrow_from_ABCD(seq[0] - 0x20);
case '[':
if (length > 1) {
*consumed = 2;
if ('@' < seq[1] && seq[1] < 'F')
/* Esc [ [ A == F1 on Linux console. */
/* Esc [ [ B == F2 on Linux console. */
/* Esc [ [ C == F3 on Linux console. */
/* Esc [ [ D == F4 on Linux console. */
/* Esc [ [ E == F5 on Linux console. */
return KEY_F(seq[1] - '@');
else if (length > 2 && seq[2] == '~') {
*consumed = 3;
switch (seq[1]) {
case '1': /* Esc [ 1 1 ~ == F1 on rxvt/Eterm. */
case '2': /* Esc [ 1 2 ~ == F2 on rxvt/Eterm. */
case '3': /* Esc [ 1 3 ~ == F3 on rxvt/Eterm. */
case '4': /* Esc [ 1 4 ~ == F4 on rxvt/Eterm. */
case '5': /* Esc [ 1 5 ~ == F5 on xterm/rxvt/Eterm. */
return KEY_F(seq[1] - '0');
case '7': /* Esc [ 1 7 ~ == F6 on VT220/VT320/
* Linux console/xterm/rxvt/Eterm. */
case '8': /* Esc [ 1 8 ~ == F7 on the same. */
case '9': /* Esc [ 1 9 ~ == F8 on the same. */
return KEY_F(seq[1] - '1');
}
break;
}
} else if (length > 3 && seq[1] == ';') {
*consumed = 4;
switch (seq[2]) {
case '2':
switch (seq[3]) {
case 'A': /* Esc [ 1 ; 2 A == Shift-Up on xterm. */
case 'B': /* Esc [ 1 ; 2 B == Shift-Down on xterm. */
case 'C': /* Esc [ 1 ; 2 C == Shift-Right on xterm. */
case 'D': /* Esc [ 1 ; 2 D == Shift-Left on xterm. */
shift_held = TRUE;
return arrow_from_ABCD(seq[3]);
#ifndef NANO_TINY
case 'F': /* Esc [ 1 ; 2 F == Shift-End on xterm. */
return SHIFT_END;
case 'H': /* Esc [ 1 ; 2 H == Shift-Home on xterm. */
return SHIFT_HOME;
#endif
}
break;
#ifndef NANO_TINY
case '9': /* To accommodate iTerm2 in "xterm mode". */
case '3':
switch (seq[3]) {
case 'A': /* Esc [ 1 ; 3 A == Alt-Up on xterm. */
return ALT_UP;
case 'B': /* Esc [ 1 ; 3 B == Alt-Down on xterm. */
return ALT_DOWN;
case 'C': /* Esc [ 1 ; 3 C == Alt-Right on xterm. */
return ALT_RIGHT;
case 'D': /* Esc [ 1 ; 3 D == Alt-Left on xterm. */
return ALT_LEFT;
}
break;
case '4':
/* When the arrow keys are held together with Shift+Meta,
* act as if they are Home/End/PgUp/PgDown with Shift. */
switch (seq[3]) {
case 'A': /* Esc [ 1 ; 4 A == Shift-Alt-Up on xterm. */
return SHIFT_PAGEUP;
case 'B': /* Esc [ 1 ; 4 B == Shift-Alt-Down on xterm. */
return SHIFT_PAGEDOWN;
case 'C': /* Esc [ 1 ; 4 C == Shift-Alt-Right on xterm. */
return SHIFT_END;
case 'D': /* Esc [ 1 ; 4 D == Shift-Alt-Left on xterm. */
return SHIFT_HOME;
}
break;
#endif
case '5':
switch (seq[3]) {
case 'A': /* Esc [ 1 ; 5 A == Ctrl-Up on xterm. */
return CONTROL_UP;
case 'B': /* Esc [ 1 ; 5 B == Ctrl-Down on xterm. */
return CONTROL_DOWN;
case 'C': /* Esc [ 1 ; 5 C == Ctrl-Right on xterm. */
return CONTROL_RIGHT;
case 'D': /* Esc [ 1 ; 5 D == Ctrl-Left on xterm. */
return CONTROL_LEFT;
case 'F': /* Esc [ 1 ; 5 F == Ctrl-End on xterm. */
return CONTROL_END;
case 'H': /* Esc [ 1 ; 5 H == Ctrl-Home on xterm. */
return CONTROL_HOME;
}
break;
#ifndef NANO_TINY
case '6':
switch (seq[3]) {
case 'A': /* Esc [ 1 ; 6 A == Shift-Ctrl-Up on xterm. */
return shiftcontrolup;
case 'B': /* Esc [ 1 ; 6 B == Shift-Ctrl-Down on xterm. */
return shiftcontroldown;
case 'C': /* Esc [ 1 ; 6 C == Shift-Ctrl-Right on xterm. */
return shiftcontrolright;
case 'D': /* Esc [ 1 ; 6 D == Shift-Ctrl-Left on xterm. */
return shiftcontrolleft;
case 'F': /* Esc [ 1 ; 6 F == Shift-Ctrl-End on xterm. */
return shiftcontrolend;
case 'H': /* Esc [ 1 ; 6 H == Shift-Ctrl-Home on xterm. */
return shiftcontrolhome;
}
break;
#endif
}
} else if (length > 4 && seq[2] == ';' && seq[4] == '~')
/* Esc [ 1 n ; 2 ~ == F17...F20 on some terminals. */
*consumed = 5;
#ifdef USE_SLANG
else if (length == 3 && seq[2] == ';')
/* Discard broken sequences that Slang produces. */
*consumed = 3;
#endif
break;
case '2':
if (length > 2 && seq[2] == '~') {
*consumed = 3;
switch (seq[1]) {
case '0': /* Esc [ 2 0 ~ == F9 on VT220/VT320/
* Linux console/xterm/rxvt/Eterm. */
return KEY_F(9);
case '1': /* Esc [ 2 1 ~ == F10 on the same. */
return KEY_F(10);
case '3': /* Esc [ 2 3 ~ == F11 on the same. */
return KEY_F(11);
case '4': /* Esc [ 2 4 ~ == F12 on the same. */
return KEY_F(12);
}
} else if (length > 1 && seq[1] == '~')
/* Esc [ 2 ~ == Insert on VT220/VT320/
* Linux console/xterm/Terminal. */
return KEY_IC;
else if (length > 3 && seq[1] == ';' && seq[3] == '~') {
/* Esc [ 2 ; x ~ == modified Insert on xterm. */
*consumed = 4;
#ifndef NANO_TINY
if (seq[2] == '3')
return ALT_INSERT;
#endif
}
else if (length > 4 && seq[2] == ';' && seq[4] == '~')
/* Esc [ 2 n ; 2 ~ == F21...F24 on some terminals. */
*consumed = 5;
#ifdef USE_SLANG
else if (length == 3 && seq[2] == ';')
/* Discard broken sequences that Slang produces. */
*consumed = 3;
#endif
#ifndef NANO_TINY
else if (length > 3 && seq[1] == '0' && seq[3] == '~') {
/* Esc [ 2 0 0 ~ == start of a bracketed paste,
* Esc [ 2 0 1 ~ == end of a bracketed paste. */
*consumed = 4;
if (seq[2] == '0') {
bracketed_paste = TRUE;
return BRACKETED_PASTE_MARKER;
} else if (seq[2] == '1') {
bracketed_paste = FALSE;
return BRACKETED_PASTE_MARKER;
}
}
#endif
break;
case '3': /* Esc [ 3 ~ == Delete on VT220/VT320/
* Linux console/xterm/Terminal. */
if (length > 1 && seq[1] == '~')
return KEY_DC;
if (length > 3 && seq[1] == ';' && seq[3] == '~') {
*consumed = 4;
#ifndef NANO_TINY
if (seq[2] == '2')
/* Esc [ 3 ; 2 ~ == Shift-Delete on xterm/Terminal. */
return SHIFT_DELETE;
if (seq[2] == '3')
/* Esc [ 3 ; 3 ~ == Alt-Delete on xterm/rxvt/Eterm/Terminal. */
return ALT_DELETE;
if (seq[2] == '5')
/* Esc [ 3 ; 5 ~ == Ctrl-Delete on xterm. */
return CONTROL_DELETE;
if (seq[2] == '6')
/* Esc [ 3 ; 6 ~ == Ctrl-Shift-Delete on xterm. */
return controlshiftdelete;
#endif
}
#ifndef NANO_TINY
if (length > 1 && seq[1] == '$')
/* Esc [ 3 $ == Shift-Delete on urxvt. */
return SHIFT_DELETE;
if (length > 1 && seq[1] == '^')
/* Esc [ 3 ^ == Ctrl-Delete on urxvt. */
return CONTROL_DELETE;
if (length > 1 && seq[1] == '@')
/* Esc [ 3 @ == Ctrl-Shift-Delete on urxvt. */
return controlshiftdelete;
if (length > 2 && seq[2] == '~')
/* Esc [ 3 n ~ == F17...F20 on some terminals. */
*consumed = 3;
#endif
break;
case '4': /* Esc [ 4 ~ == End on VT220/VT320/
* Linux console/xterm. */
if (length > 1 && seq[1] == '~')
return KEY_END;
break;
case '5': /* Esc [ 5 ~ == PageUp on VT220/VT320/
* Linux console/xterm/Eterm/urxvt/Terminal */
if (length > 1 && seq[1] == '~')
return KEY_PPAGE;
else if (length > 3 && seq[1] == ';' && seq[3] == '~') {
*consumed = 4;
#ifndef NANO_TINY
if (seq[2] == '2')
return shiftaltup;
if (seq[2] == '3')
return ALT_PAGEUP;
#endif
}
break;
case '6': /* Esc [ 6 ~ == PageDown on VT220/VT320/
* Linux console/xterm/Eterm/urxvt/Terminal */
if (length > 1 && seq[1] == '~')
return KEY_NPAGE;
else if (length > 3 && seq[1] == ';' && seq[3] == '~') {
*consumed = 4;
#ifndef NANO_TINY
if (seq[2] == '2')
return shiftaltdown;
if (seq[2] == '3')
return ALT_PAGEDOWN;
#endif
}
break;
case '7': /* Esc [ 7 ~ == Home on Eterm/rxvt;
* Esc [ 7 $ == Shift-Home on Eterm/rxvt;
* Esc [ 7 ^ == Control-Home on Eterm/rxvt;
* Esc [ 7 @ == Shift-Control-Home on same. */
if (length > 1 && seq[1] == '~')
return KEY_HOME;
else if (length > 1 && seq[1] == '$')
return SHIFT_HOME;
else if (length > 1 && seq[1] == '^')
return CONTROL_HOME;
#ifndef NANO_TINY
else if (length > 1 && seq[1] == '@')
return shiftcontrolhome;
#endif
break;
case '8': /* Esc [ 8 ~ == End on Eterm/rxvt;
* Esc [ 8 $ == Shift-End on Eterm/rxvt;
* Esc [ 8 ^ == Control-End on Eterm/rxvt;
* Esc [ 8 @ == Shift-Control-End on same. */
if (length > 1 && seq[1] == '~')
return KEY_END;
else if (length > 1 && seq[1] == '$')
return SHIFT_END;
else if (length > 1 && seq[1] == '^')
return CONTROL_END;
#ifndef NANO_TINY
else if (length > 1 && seq[1] == '@')
return shiftcontrolend;
#endif
break;
case '9': /* Esc [ 9 == Delete on Mach console. */
return KEY_DC;
case '@': /* Esc [ @ == Insert on Mach console. */
return KEY_IC;
case 'A': /* Esc [ A == Up on ANSI/VT220/Linux console/
* FreeBSD console/Mach console/xterm/Eterm/
* urxvt/Gnome and Xfce Terminal. */
case 'B': /* Esc [ B == Down on the same. */
case 'C': /* Esc [ C == Right on the same. */
case 'D': /* Esc [ D == Left on the same. */
return arrow_from_ABCD(seq[0]);
case 'F': /* Esc [ F == End on FreeBSD console/Eterm. */
return KEY_END;
case 'G': /* Esc [ G == PageDown on FreeBSD console. */
return KEY_NPAGE;
case 'H': /* Esc [ H == Home on ANSI/VT220/FreeBSD
* console/Mach console/Eterm. */
return KEY_HOME;
case 'I': /* Esc [ I == PageUp on FreeBSD console. */
return KEY_PPAGE;
case 'L': /* Esc [ L == Insert on ANSI/FreeBSD console. */
return KEY_IC;
case 'M': /* Esc [ M == F1 on FreeBSD console. */
return KEY_F(1);
case 'N': /* Esc [ N == F2 on FreeBSD console. */
return KEY_F(2);
case 'O':
if (length > 1) {
*consumed = 2;
if ('O' < seq[1] && seq[1] < 'T')
/* Esc [ O P == F1 on xterm. */
/* Esc [ O Q == F2 on xterm. */
/* Esc [ O R == F3 on xterm. */
/* Esc [ O S == F4 on xterm. */
return KEY_F(seq[1] - 'O');
} else
/* Esc [ O == F3 on FreeBSD console. */
return KEY_F(3);
break;
case 'P': /* Esc [ P == F4 on FreeBSD console. */
case 'Q': /* Esc [ Q == F5 on FreeBSD console. */
case 'R': /* Esc [ R == F6 on FreeBSD console. */
case 'S': /* Esc [ S == F7 on FreeBSD console. */
case 'T': /* Esc [ T == F8 on FreeBSD console. */
return KEY_F(4 + seq[0] - 'P');
case 'U': /* Esc [ U == PageDown on Mach console. */
return KEY_NPAGE;
case 'V': /* Esc [ V == PageUp on Mach console. */
return KEY_PPAGE;
case 'W': /* Esc [ W == F11 on FreeBSD console. */
return KEY_F(11);
case 'X': /* Esc [ X == F12 on FreeBSD console. */
return KEY_F(12);
case 'Y': /* Esc [ Y == End on Mach console. */
return KEY_END;
case 'Z': /* Esc [ Z == Shift-Tab on ANSI/Linux console/
* FreeBSD console/xterm/rxvt/Terminal. */
return SHIFT_TAB;
case 'a': /* Esc [ a == Shift-Up on rxvt/Eterm. */
case 'b': /* Esc [ b == Shift-Down on rxvt/Eterm. */
case 'c': /* Esc [ c == Shift-Right on rxvt/Eterm. */
case 'd': /* Esc [ d == Shift-Left on rxvt/Eterm. */
shift_held = TRUE;
return arrow_from_ABCD(seq[0] - 0x20);
case '[':
if (length > 1) {
*consumed = 2;
if ('@' < seq[1] && seq[1] < 'F')
/* Esc [ [ A == F1 on Linux console. */
/* Esc [ [ B == F2 on Linux console. */
/* Esc [ [ C == F3 on Linux console. */
/* Esc [ [ D == F4 on Linux console. */
/* Esc [ [ E == F5 on Linux console. */
return KEY_F(seq[1] - '@');
}
break;
}
return FOREIGN_SEQUENCE;
}