Add a user defaults key to disable a hack for Shift+Space inputing

Author: splhack

src/MacVim/MMAppController.m

@@ -226,6 +226,7 @@ + (void)initialize
 #endif // INCLUDE_OLD_IM_CODE
         [NSNumber numberWithBool:NO],   MMSuppressTerminationAlertKey,
         [NSNumber numberWithBool:YES],  MMNativeFullScreenKey,
+        [NSNumber numberWithBool:YES],  MMIgnoreShiftSpaceKey,
         nil];
 
     [[NSUserDefaults standardUserDefaults] registerDefaults:dict];

src/MacVim/MMTextViewHelper.m

@@ -188,7 +188,9 @@ - (void)keyDown:(NSEvent *)event
         [self doKeyDown:@"\x1e"];
         string = nil;
 #if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_10)
-    } else if ((flags & NSShiftKeyMask) && [string isEqualToString:@" "]) {
+    } else if ([[NSUserDefaults standardUserDefaults]
+                boolForKey:MMIgnoreShiftSpaceKey]
+            && (flags & NSShiftKeyMask) && [string isEqualToString:@" "]) {
         // HACK! for Yosemite - Fix for Shift+Space inputing
         // do nothing
 #endif

src/MacVim/Miscellaneous.h

@@ -54,6 +54,7 @@ extern NSString *MMUseInlineImKey;
 #endif // INCLUDE_OLD_IM_CODE
 extern NSString *MMSuppressTerminationAlertKey;
 extern NSString *MMNativeFullScreenKey;
+extern NSString *MMIgnoreShiftSpaceKey;
 
 
 // Enum for MMUntitledWindowKey

src/MacVim/Miscellaneous.m

@@ -46,6 +46,7 @@
 #endif // INCLUDE_OLD_IM_CODE
 NSString *MMSuppressTerminationAlertKey = @"MMSuppressTerminationAlert";
 NSString *MMNativeFullScreenKey         = @"MMNativeFullScreen";
+NSString *MMIgnoreShiftSpaceKey         = @"MMIgnoreShiftSpace";