How to get smart tabs (“indent with tabs, align with spaces”) behavior in Xcode?

问题

I used to use tabs for indentation and spaces for alignment. Like so (arrows show tabs and dots show spaces).

In QtCreator you can set such coding style in standard preferences. I can't find the way to achieve the same goal in Xcode. Could you please tell me if it is possible? May be there is a plugin for that?

UPDATE: Here is how it can be achieved in QtCreator:

P.S. Please, don't try to persuade me that using spaces only/tabs only is better, otherwise this question will turn into another holywar :)

Once more about what I'm trying to achieve: Indent with tabs, align with spaces. Vim Tips Wiki.

UPDATE 2: I've just submitted an Apple Radar bug-report (enhancement) rdar://22285639. Here it is on the open radar.

UPDATE 3: I received an answer from Apple. My bug is a duplicate of rdar://8165023.

回答1:

In Xcode > Preferences (⌘,):

If I understand your question correctly, this should do it for you.

回答2:

If you want to remap the standard Xcode's ⌘+[ to TAB, you can do the following:

1. Install a program called "Karabiner".

2. Go to Preferences ~> "Misc and Uninstall"

3. In "Custom Setting" section click on the "Open private.xml" button

4. Open the file and replace its content with the following code:

   <?xml version="1.0"?> 
   <root>
       <item>
           <name>Tab instead of Command+[</name>
           <identifier>private.swap_tab_and_cmnd+[</identifier>
           <autogen>
               __KeyToKey__
               KeyCode::TAB, ModifierFlag::NONE,
               KeyCode::BRACKET_RIGHT, ModifierFlag::COMMAND_L | ModifierFlag::NONE
           </autogen>
       </item> 
   </root>
   

5. Go to Preferences ~> "Change Key" ~> click on "Reload XML" button

6. Put a tick in the checkbox which is called "Tab instead of Command+["

7. Enjoy

PS: Please note that this setting works globally on your machine, not just in Xcode. However, I am sure that google might help you to find a solution how to customize it even further, applying the changes only to Xcode.

回答3:

In XCode
Xcode > Preferences or use ⌘ , to open Preferences
now click on the Text Edit tab and then there is sub tab bar click on Indentation and you can change setting of the Indentation as you need

来源：https://stackoverflow.com/questions/16208065/how-to-get-smart-tabs-indent-with-tabs-align-with-spaces-behavior-in-xcode