shortcuts: remove any unnecessary classifying of keys

After initialization, the type of a key is never used nor needed
(other than for meta keys).

src/global.c

@@ -340,7 +340,6 @@ void add_to_sclist(int menus, const char *scstring, void (*func)(void), int togg
     if (toggle)
 	s->ordinal = ++counter;
     s->keystr = (char *) scstring;
-    s->type = strtokeytype(scstring);
     assign_keyinfo(s);
 
 #ifdef DEBUG
@@ -400,41 +399,31 @@ functionptrtype func_from_key(int *kbinput)
 	return NULL;
 }
 
-/* Return the type of command key based on the given string. */
-key_type strtokeytype(const char *str)
-{
-    if (str[0] == '^')
-	return CONTROL;
-    else if (str[0] == 'M')
-	return META;
-    else if (str[0] == 'F')
-	return FKEY;
-    else
-	return RAWINPUT;
-}
-
 /* Assign the info to the shortcut struct.
  * Assumes keystr is already assigned, naturally. */
 void assign_keyinfo(sc *s)
 {
-    if (s->type == CONTROL) {
+    s->type = DIRECT;
+
+    if (s->keystr[0] == '^') {
 	assert(strlen(s->keystr) > 1);
 	s->seq = s->keystr[1] - 64;
-    } else if (s->type == META) {
+    } else if (s->keystr[0] == 'M') {
 	assert(strlen(s->keystr) > 2);
+	s->type = META;
 	s->seq = tolower((int) s->keystr[2]);
-    } else if (s->type == FKEY) {
+    } else if (s->keystr[0] == 'F') {
 	assert(strlen(s->keystr) > 1);
 	s->seq = KEY_F0 + atoi(&s->keystr[1]);
     } else /* RAWINPUT */
 	s->seq = (int) s->keystr[0];
 
     /* Override some keys which don't bind as easily as we'd like. */
-    if (s->type == CONTROL && (!strcasecmp(&s->keystr[1], "space")))
+    if (strcasecmp(s->keystr, "^Space") == 0)
 	s->seq = 0;
-    else if (s->type == META && (!strcasecmp(&s->keystr[2], "space")))
+    else if (strcasecmp(s->keystr, "M-Space") == 0)
 	s->seq = (int) ' ';
-    else if (s->type == RAWINPUT) {
+    else {
 	if (!strcasecmp(s->keystr, "Up"))
 	    s->seq = KEY_UP;
 	else if (!strcasecmp(s->keystr, "Down"))

src/nano.h

@@ -188,7 +188,7 @@ typedef enum {
 } update_type;
 
 typedef enum {
-    CONTROL, META, FKEY, RAWINPUT
+    DIRECT, META
 }  key_type;
 
 typedef enum {

src/proto.h

@@ -362,7 +362,6 @@ size_t length_of_list(int menu);
 const sc *first_sc_for(int menu, void (*func)(void));
 int sc_seq_or(void (*func)(void), int defaultval);
 functionptrtype func_from_key(int *kbinput);
-key_type strtokeytype(const char *str);
 void assign_keyinfo(sc *s);
 void print_sclist(void);
 void shortcut_init(void);

src/rcfile.c

@@ -472,7 +472,6 @@ void parse_binding(char *ptr, bool dobind)
 
 	newsc->keystr = keycopy;
 	newsc->menus = menu;
-	newsc->type = strtokeytype(newsc->keystr);
 	assign_keyinfo(newsc);
 
 	/* Do not allow rebinding the equivalent of the Escape key. */

src/winio.c

@@ -1563,7 +1563,7 @@ int get_mouseinput(int *mouse_x, int *mouse_y, bool allow_shortcuts)
 	    /* And put the corresponding key into the keyboard buffer. */
 	    if (f != NULL) {
 		const sc *s = first_sc_for(currmenu, f->scfunc);
-		unget_kbinput(s->seq, s->type == META, s->type == FKEY);
+		unget_kbinput(s->seq, s->type == META, s->type == DIRECT);
 	    }
 	    return 1;
 	} else