various fixes for get_control_kbinput()

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3450 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -167,6 +167,11 @@ CVS code -
 	  (DLR)
 	- Change all rcfile error messages to refer to commands instead
 	  of directives, for consistency with nanorc.5. (DLR)
+- winio.c:
+  get_control_kbinput()
+	- Add Ctrl-/ as an alias for Ctrl-_. (DLR, found by Benno
+	  Schulenberg)
+	- Simplify the if blocks wherever possible. (DLR)
 - configure.ac:
 	- Remove old warnings about color support. (DLR)
 - doc/nano.1, doc/nanorc.5, doc/rnano.1, doc/nano.texi:

src/winio.c

@@ -1406,21 +1406,26 @@ int get_control_kbinput(int kbinput)
 {
     int retval;
 
-     /* Ctrl-2 (Ctrl-Space, Ctrl-@, Ctrl-`) */
-    if (kbinput == '2' || kbinput == ' ' || kbinput == '@' ||
-	kbinput == '`')
-	retval = NANO_CONTROL_SPACE;
-    /* Ctrl-3 (Ctrl-[, Esc) to Ctrl-7 (Ctrl-_) */
+     /* Ctrl-Space (Ctrl-2, Ctrl-@, Ctrl-`) */
+    if (kbinput == ' ')
+	retval = kbinput - 32;
+    /* Ctrl-/ (Ctrl-7, Ctrl-_) */
+    else if (kbinput == '/')
+	retval = kbinput - 16;
+    /* Ctrl-2 (Ctrl-Space, Ctrl-@, Ctrl-`) */
+    else if (kbinput == '2')
+	retval = kbinput - 50;
+    /* Ctrl-3 (Ctrl-[, Esc) to Ctrl-7 (Ctrl-/, Ctrl-_) */
     else if ('3' <= kbinput && kbinput <= '7')
 	retval = kbinput - 24;
     /* Ctrl-8 (Ctrl-?) */
-    else if (kbinput == '8' || kbinput == '?')
-	retval = NANO_CONTROL_8;
-    /* Ctrl-A to Ctrl-_ */
-    else if ('A' <= kbinput && kbinput <= '_')
+    else if (kbinput == '8')
+	retval = kbinput + 71;
+    /* Ctrl-? (Ctrl-8) to Ctrl-_ (Ctrl-/, Ctrl-7) */
+    else if ('?' <= kbinput && kbinput <= '_')
 	retval = kbinput - 64;
-    /* Ctrl-a to Ctrl-~ */
-    else if ('a' <= kbinput && kbinput <= '~')
+    /* Ctrl-` (Ctrl-2, Ctrl-Space, Ctrl-@) to Ctrl-~ (Ctrl-6, Ctrl-^) */
+    else if ('`' <= kbinput && kbinput <= '~')
 	retval = kbinput - 96;
     else
 	retval = kbinput;