[PATCH 1/3] input: recognize the keystrokes to be used for jumping to bookmarks

[Benno Schulenberg]

Logically it ought to be <Ctrl+PageUp> and <Ctrl+PageDown> (because
the Ctrl modifier is used for "jumping"), but most terminal emulators
use those keystrokes to switch between tabs.

So, use <Alt+PageUp> and <Alt+PageDown> instead.
---
 src/global.c |  2 +-
 src/nano.c   |  2 ++
 src/nano.h   |  2 ++
 src/proto.h  |  1 +
 src/winio.c  | 12 ++++++++++++
 5 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/global.c b/src/global.c
index 6c9a981c..e8fa4629 100644
--- a/src/global.c
+++ b/src/global.c
@@ -104,7 +104,7 @@ int shiftleft, shiftright, shiftup, shiftdown;
 int shiftcontrolleft, shiftcontrolright, shiftcontrolup, shiftcontroldown;
 int shiftcontrolhome, shiftcontrolend;
 int altleft, altright, altup, altdown;
-int altdelete;
+int altpageup, altpagedown, altdelete;
 int shiftaltleft, shiftaltright, shiftaltup, shiftaltdown;
 #endif
 
diff --git a/src/nano.c b/src/nano.c
index 440db100..cc101680 100644
--- a/src/nano.c
+++ b/src/nano.c
@@ -2399,6 +2399,8 @@ 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);
        altdelete = get_keycode("kDC3", ALT_DELETE);
 
        shiftaltleft = get_keycode("kLFT4", SHIFT_ALT_LEFT);
diff --git a/src/nano.h b/src/nano.h
index a4a15d84..3538750e 100644
--- a/src/nano.h
+++ b/src/nano.h
@@ -588,6 +588,8 @@ enum
 #define ALT_RIGHT 0x422
 #define ALT_UP 0x423
 #define ALT_DOWN 0x424
+#define ALT_PAGEUP 0x427
+#define ALT_PAGEDOWN 0x428
 #define ALT_DELETE 0x42D
 #define SHIFT_ALT_LEFT 0x431
 #define SHIFT_ALT_RIGHT 0x432
diff --git a/src/proto.h b/src/proto.h
index 6660d603..58838280 100644
--- a/src/proto.h
+++ b/src/proto.h
@@ -76,6 +76,7 @@ extern int shiftcontrolup, shiftcontroldown;
 extern int shiftcontrolhome, shiftcontrolend;
 extern int altleft, altright;
 extern int altup, altdown;
+extern int altpageup, altpagedown;
 extern int altdelete;
 extern int shiftaltleft, shiftaltright;
 extern int shiftaltup, shiftaltdown;
diff --git a/src/winio.c b/src/winio.c
index 0506c132..da150950 100644
--- a/src/winio.c
+++ b/src/winio.c
@@ -670,6 +670,8 @@ 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 +684,8 @@ 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 +1071,10 @@ 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 == altdelete)
                return ALT_DELETE;
        else if (retval == shiftaltleft) {
@@ -1114,6 +1122,10 @@ 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;
                }
 #endif
                /* Is Ctrl being held? */
-- 
2.25.2