From d0aa271e7a6ddf8d47bbbf3942a0bc5a685fe1e8 Mon Sep 17 00:00:00 2001
From: Bjorn Winckler <bjorn.winckler@gmail.com>
Date: Tue, 14 Aug 2007 16:42:10 +0000
Subject: [PATCH] Shift-tab no longer treated as Ctrl-Y (fixes Ctrl-Y bug)

git-svn-id: http://macvim.googlecode.com/svn/trunk@136 96c4425d-ca35-0410-94e5-3396d5c13a8f
---
 MMTextView.m      | 11 ++++++++---
 SpecialKeys.plist |  2 +-
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/MMTextView.m b/MMTextView.m
index 1a973314d2..22e7f7d7a4 100644
--- a/MMTextView.m
+++ b/MMTextView.m
@@ -428,8 +428,6 @@
     if ([event type] != NSKeyDown)
         return;
 
-    //NSLog(@"%s%@", _cmd, event);
-
     NSString *chars = [event characters];
     NSString *imchars = [event charactersIgnoringModifiers];
     unichar c = [chars characterAtIndex:0];
@@ -437,6 +435,8 @@
     int len = 0;
     const char *bytes = 0;
 
+    //NSLog(@"%s chars=0x%x unmodchars=0x%x", _cmd, c, imc);
+
     if (' ' == imc && 0xa0 != c) {
         // HACK!  The AppKit turns <C-Space> into <C-@> which is not standard
         // Vim behaviour, so bypass this problem.  (0xa0 is <M-Space>, which
@@ -451,7 +451,12 @@
         // HACK!  Translate Ctrl+6 to <C-^>.
         static char ctrl_hat = 0x1e;
         len = 1;  bytes = &ctrl_hat;
-    } else {
+    } else if (c == 0x19 && imc == 0x19) {
+        // HACK! AppKit turns back tab into Ctrl-Y, so we need to handle it
+        // separately (else Ctrl-Y doesn't work).
+        static char back_tab[2] = { 'k', 'B' };
+        len = 2; bytes = back_tab;
+    }else {
         len = [chars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
         bytes = [chars UTF8String];
     }
diff --git a/SpecialKeys.plist b/SpecialKeys.plist
index 8d91cccc37..ce89630cdf 100644
--- a/SpecialKeys.plist
+++ b/SpecialKeys.plist
@@ -4,7 +4,7 @@
 <dict>
 	<key></key>
 	<string>KA</string>
-	<key></key>
+	<key>kB</key>
 	<string>kB</string>
 	<key></key>
 	<string>kb</string>