bindings: hard-bind the bookmark functions to M-Ins and M-PgUp/M-PgDn

Bind the toggling of a bookmark to <Alt+Insert>, and the jumping to the
previous and next bookmark to <Alt+PageUp> and <Alt+PageDown>, so that
these functions are available by default.

Signed-off-by: Marco Diego Aurélio Mesquita <marcodiegomesquita@gmail.com>

src/global.c

@@ -104,7 +104,8 @@ int shiftleft, shiftright, shiftup, shiftdown;
 int shiftcontrolleft, shiftcontrolright, shiftcontrolup, shiftcontroldown;
 int shiftcontrolhome, shiftcontrolend;
 int altleft, altright, altup, altdown;
-int altdelete;
+int altpageup, altpagedown;
+int altinsert, altdelete;
 int shiftaltleft, shiftaltright, shiftaltup, shiftaltdown;
 #endif
 
@@ -1203,6 +1204,9 @@ void shortcut_init(void)
 	add_to_sclist(MMAIN, "Sh-^Del", CONTROL_SHIFT_DELETE, chop_previous_word, 0);
 	add_to_sclist(MMAIN, "^Del", CONTROL_DELETE, chop_next_word, 0);
 	add_to_sclist(MMAIN, "M-Del", ALT_DELETE, zap_text, 0);
+	add_to_sclist(MMAIN, "M-Ins", ALT_INSERT, bookmark, 0);
+	add_to_sclist(MMAIN, "M-PgUp", ALT_PAGEUP, to_prev_bookmark, 0);
+	add_to_sclist(MMAIN, "M-PgDn", ALT_PAGEDOWN, to_next_bookmark, 0);
 #endif
 #ifdef ENABLE_WORDCOMPLETION
 	add_to_sclist(MMAIN, "^]", 0, complete_a_word, 0);

src/nano.c

@@ -2310,6 +2310,10 @@ int main(int argc, char **argv)
 	altright = get_keycode("kRIT3", ALT_RIGHT);
 	altup = get_keycode("kUP3", ALT_UP);
 	altdown = get_keycode("kDN3", ALT_DOWN);
+
+	altpageup = get_keycode("kPRV3", ALT_PAGEUP);
+	altpagedown = get_keycode("kNXT3", ALT_PAGEDOWN);
+	altinsert = get_keycode("kIC3", ALT_INSERT);
 	altdelete = get_keycode("kDC3", ALT_DELETE);
 
 	shiftaltleft = get_keycode("kLFT4", SHIFT_ALT_LEFT);

src/nano.h

@@ -592,6 +592,9 @@ enum
 #define ALT_RIGHT 0x422
 #define ALT_UP 0x423
 #define ALT_DOWN 0x424
+#define ALT_PAGEUP 0x427
+#define ALT_PAGEDOWN 0x428
+#define ALT_INSERT 0x42C
 #define ALT_DELETE 0x42D
 #define SHIFT_ALT_LEFT 0x431
 #define SHIFT_ALT_RIGHT 0x432

src/proto.h

@@ -76,7 +76,8 @@ extern int shiftcontrolup, shiftcontroldown;
 extern int shiftcontrolhome, shiftcontrolend;
 extern int altleft, altright;
 extern int altup, altdown;
-extern int altdelete;
+extern int altpageup, altpagedown;
+extern int altinsert, altdelete;
 extern int shiftaltleft, shiftaltright;
 extern int shiftaltup, shiftaltdown;
 #endif

src/winio.c

@@ -594,9 +594,14 @@ int convert_sequence(const int *seq, size_t length, int *consumed)
 							/* Esc [ 2 ~ == Insert on VT220/VT320/
 							 * Linux console/xterm/Terminal. */
 							return KEY_IC;
-						else if (length > 4 && seq[2] == ';' && seq[4] == '~')
+						else if (length > 4 && seq[2] == ';' && seq[4] == '~') {
 							/* Esc [ 2 ; x ~ == modified Insert on xterm. */
 							*consumed = 5;
+#ifndef NANO_TINY
+							if (seq[3] == '3')
+								return ALT_INSERT;
+#endif
+						}
 						else if (length > 5 && seq[3] == ';' && seq[5] == '~')
 							/* Esc [ 2 n ; 2 ~ == F21...F24 on some terminals. */
 							*consumed = 6;
@@ -670,6 +675,8 @@ int convert_sequence(const int *seq, size_t length, int *consumed)
 #ifndef NANO_TINY
 							if (seq[3] == '2')
 								return shiftaltup;
+							if (seq[3] == '3')
+								return ALT_PAGEUP;
 #endif
 						}
 						break;
@@ -682,6 +689,8 @@ int convert_sequence(const int *seq, size_t length, int *consumed)
 #ifndef NANO_TINY
 							if (seq[3] == '2')
 								return shiftaltdown;
+							if (seq[3] == '3')
+								return ALT_PAGEDOWN;
 #endif
 						}
 						break;
@@ -1067,6 +1076,12 @@ int parse_kbinput(WINDOW *win)
 		return ALT_UP;
 	else if (retval == altdown)
 		return ALT_DOWN;
+	else if (retval == altpageup)
+		return ALT_PAGEUP;
+	else if (retval == altpagedown)
+		return ALT_PAGEDOWN;
+	else if (retval == altinsert)
+		return ALT_INSERT;
 	else if (retval == altdelete)
 		return ALT_DELETE;
 	else if (retval == shiftaltleft) {
@@ -1114,6 +1129,12 @@ int parse_kbinput(WINDOW *win)
 				return ALT_UP;
 			if (retval == KEY_DOWN)
 				return ALT_DOWN;
+			if (retval == KEY_PPAGE)
+				return ALT_PAGEUP;
+			if (retval == KEY_NPAGE)
+				return ALT_PAGEDOWN;
+			if (retval == KEY_IC)
+				return ALT_INSERT;
 		}
 #endif
 		/* Is Ctrl being held? */