Disable "space+shift" in Sublime Text

I want to disable the "space+shift" thing in Sublime Text, it creates something that looks exactly like a space unless marked, and it messes upp all my scripts because I always accidentally type it. I was not able to find anything like "space+shift" or "shift+space" inside the sublime-keymap.

On my system I can't reproduce the behavior of Sublime described by the OP. The problem may be related to an interfering third-party app/process.

One possible solution - configuring a new keycode with Karabiner to avoid the problem - is outlined below.

To disable or modify ShiftSpace in Sublime just remap the key combo with Karabiner. Usually you have to define an app in /Applications/Karabiner.app/Contents/Resources/appdef.xml if you want to adjust/modify an app-only shortcut. Since the appdef list already contains Sublime Text you can immediately add a new remapping.

1. Download, install and open Karabiner
2. Open in the menulet Karabiner -> Preferences
3. Open the tab Misc & Uninstall
4. Hit the button Open private.xml
5. Open the file private.xml with an appropriate editor

6. Enter the customized keycode

   Example (ShiftSpace -> Space):

   <?xml version="1.0"?>
   <root>
     <item>
       <name>Enable at only SUBLIMETEXT</name>
       <item>
         <name>Shift+Space to Space</name>
         <identifier>remap.app_sublime_shiftspace2space</identifier>
         <only>SUBLIMETEXT</only>
         <autogen>__KeyToKey__ KeyCode::SPACE, MODIFIERFLAG_EITHER_LEFT_OR_RIGHT_SHIFT, KeyCode::SPACE</autogen>
       </item>
     </item>
   </root>
   

7. Save the file

8. Open in the menulet Karabiner -> Preferences the tab Change Key
9. Hit the ReloadXML button
10. Enable the Sublime Text remapping. It should be listed at the beginning.