In Xcode 7 and later, this command has moved to the Editor menu:

Editor &gt; Show Invisibles 

or 

Editor &gt; Hide Invisible

## Edit

As of Xcode 12.1, the menu item is now simply called &quot;Invisibles&quot;. It&#39;s checked when invisibles are shown, and un-checked when they are not shown.

Further, it looks like Xcode now uses very light blue dots for spaces, and bold light blue dots for the spaces that correspond to your tab positions, which is very nice.

You can also use [defaults](https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/defaults.1.html) to read/write to the Xcode `plist`

This is used/tested in Xcode `6.1`

# GUI

`Editor-&gt;Show Invisibles`

# CLI
## Turn it on
    defaults write com.apple.dt.Xcode DVTTextShowInvisibleCharacters 1

## Turn it off
    defaults write com.apple.dt.Xcode DVTTextShowInvisibleCharacters 0

Since Xcode `11`:

In the menu check/uncheck:
`Editor -&gt; Invisibles`


It is under **Editor -&gt; Invisibles**. You can **check** it to show or **uncheck** it to hide them. 

---
### A note about the macOS 

In the mac environment, you can search for any menu option under the **Help** menu, then it will open the exact menu path you are looking for. For example, searching for **invi**sibles results in this:



[![Demo][1]][1]


  [1]: https://i.stack.imgur.com/TRGDL.png

In Xcode 6.x and earlier:

View -&gt; Text -&gt; Show Spaces

View -&gt; Text -&gt; Show Control Characters

You can also enter a white space into the search field, this will highlight all white spaces in yellow temporarily. I found this accidentally here, where Marty asked the other way around: https://stackoverflow.com/questions/23638320/what-are-these-yellow-spacers-in-xcode


I intend to switch over from CVS to Git. 
In the case of SVN, there seems to be `cvs2svn`.  Is there a similar tool to easily migrate from CVS to Git? 


Is there a migration tool from CVS to Git?

I need a SQL query to find the names of existing databases.

SQL Server query to find all current database names

I want the tabs and spaces to be visible in Xcode. Is this possible? I can&#39;t find it under preferences.



Is there a way to make whitespace visible in the Xcode editor?

<p>I want the tabs and spaces to be visible in Xcode. Is this possible? I can't find it under preferences.</p>


I would like to include the application version and internal revision, something like 1.0.1 (r1243), in my application&#39;s settings bundle.

The Root.plist file contains a fragment like this...

         &lt;dict&gt;
			&lt;key&gt;Type&lt;/key&gt;
			&lt;string&gt;PSTitleValueSpecifier&lt;/string&gt;
			&lt;key&gt;Title&lt;/key&gt;
			&lt;string&gt;Version&lt;/string&gt;
			&lt;key&gt;Key&lt;/key&gt;
			&lt;string&gt;version_preference&lt;/string&gt;
			&lt;key&gt;DefaultValue&lt;/key&gt;
			&lt;string&gt;VersionValue&lt;/string&gt;
			&lt;key&gt;Values&lt;/key&gt;
			&lt;array&gt;
				&lt;string&gt;VersionValue&lt;/string&gt;
			&lt;/array&gt;
			&lt;key&gt;Titles&lt;/key&gt;
			&lt;array&gt;
				&lt;string&gt;VersionValue&lt;/string&gt;
			&lt;/array&gt;
		&lt;/dict&gt;

and I would like to replace the &quot;VersionValue&quot; string at build time.

I have a script that can extract the version number from my repository, what I need is a way to process (pre-process) the Root.plist file, at build time,  and replace the revision number without affecting the source file.





How can I display the application version revision in my application&#39;s settings bundle?

In Xcode, I know that you can get variables such as `PROJECT_DIR` to use in some situations, such as a run script build phase. I am wondering if it&#39;s possible to get the build type (i.e., *Release* or *Debug*). Any ideas?




Xcode variables

I&#39;m doing a presentation on debugging in Xcode and would like to get more information on using NSLog efficiently.

In particular, I have two questions:

 - is there a way to easily NSLog the current method&#39;s name / line number?
 - is there a way to &quot;disable&quot; all NSLogs easily before compiling for release code?




How to print out the method name and line number and conditionally disable NSLog?

What I did:
-----------

I have a script that

1. Read some configuration files to generate source code snippets
2. Find relevant Objective-C source files and
3. Replace some portions of the source code with the generated code in step 1.

and a Makefile that has a special timestamp file as a make target and the configuration files as target sources:

    SRC = $(shell find ../config -iname &quot;*.txt&quot;)
    STAMP = $(PROJECT_TEMP_DIR)/$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME).stamp
    $(STAMP): $(SRC)
    	python inject.py
    	touch $(STAMP)

I added this Makefile as a &quot;Run Script Build Phase&quot; on top of the stack of build phases for the project target.

What happened:
--------------

The script build phase was run before compiling the source.

However, since the script modifies source code during its execution, I needed to build **twice** to get the most recent version of the build product. Here is what I imagine to be happening:

1. 1st run: Xcode collects dependency information ---&gt; no changes
2. 1st run: Xcode runs &quot;Run Script Build Phase&quot; ---&gt; source is changed behind Xcode&#39;s back
3. 1st run: Xcode finishes build, thinking nothing needs to be updated
4. 2nd run: Xcode collects dependency information ---&gt; source has changed, needs rebuild!
5. 2nd run: Xcode runs Run Script Build Phase&quot; ---&gt; everything is up-to-date
6. 2nd run: Xcode proceeds to compilation

After reading [Xcode documentation on Build Phases](http://gemma.apple.com/DOCUMENTATION/DeveloperTools/Conceptual/XcodeBuildSystem/200-Build_Phases/bs_build_phases.html), I tried adding a source file which is known to be updated every time the script is run as the output of &quot;Run Script Build Phases&quot;, but nothing changed. Since the number of configuration files may vary in my project, I don&#39;t want to specify every input and output file.

Question:
---------

How do I make Xcode aware of source file changes made during &quot;Run Script Build Phase&quot;?

### Edit: ###
- Added that I placed the script build phase before the other build phases

Xcode: Running a script before every build that modifies source code directly

I&#39;m looking to be able to have the debugger break when it reaches a particular string match. As an example, I might have something like this:

    Foo myObj = [self gimmeObj];

`myObj` might have a property called `name`. I want the debugger to stop on the assignment when

    [myObj.name isEqualToString:@&quot;Bar&quot;];

How can I set my conditional breakpoint in Xcode to do that?

How to set a conditional breakpoint in Xcode based on an object string property?

I know

    di&lt;

will delete in an HTML tag itself.

Is there an easy way to delete text in between two tags?

    &lt;span&gt;How can I delete this text?&lt;/span&gt;
Thanks!

Delete text in between HTML tags in vim?

I am able to set bookmarks in a source file, but are there shortcut keys to navigate to a bookmark ? The **navigate** menu has a goto line. But that is not useful.

How to navigate to a bookmark in eclipse 3.4.1?

Does anyone have any recommendations for a programmer&#39;s editor that can cope with large files on Mac OS X? By large I mean hundreds of megabytes. TextMate doesn&#39;t cut it.

Editing large files on Mac OS X

**Background:** This is a request for something that may not exist yet, but I&#39;ve been meaning to build one for a long time. First I will ask if anyone has seen anything like it yet. 

Suppose you have an arbitrary JSON structure like the following:

    {
        &#39;title_str&#39;:&#39;My Employee List&#39;
        ,&#39;lastmod_str&#39;: &#39;2009-June-15&#39;
        ,&#39;employee_table&#39;:[
            {&#39;firstname&#39;:&#39;john&#39;,&#39;lastname&#39;:&#39;doe&#39;,&#39;age&#39;:&#39;33&#39;,}
            ,{&#39;firstname&#39;:&#39;jane&#39;,&#39;lastname&#39;:&#39;doe&#39;,&#39;age&#39;:&#39;34&#39;,}
            ,{&#39;firstname&#39;:&#39;samuel&#39;,&#39;lastname&#39;:&#39;doe&#39;,&#39;age&#39;:&#39;35&#39;,}
        ]
    }

**Question:** Is there a web-based JSON editor that could take a structure like this, and automatically allow the user to modify this in a user-friendly GUI?

**Example:** Imagine an auto-generated HTML form that displays 2 input-type-text controls for both title and lastmod, and a table of input-type-text controls with three columns and three rows for arr_list ... with the ability to delete or add additional rows by clicking on a [+][X] next to each row in the table.

**Big Idea:** The &quot;big idea&quot; behind this is that the user would be able to specify any arbitrary (non-recursive) JSON structure and then also be able to edit the structure with a GUI-based interaction (this would be similar to the &quot;XML Editor Grid View&quot; in XML Spy).

**See also:**

* https://stackoverflow.com/questions/22582471/is-there-a-json-api-based-cms-that-is-hosted-locally
* https://ux.stackexchange.com/questions/37237/treetable-as-a-flexible-condition-filter-editor
* [JSON-editor](https://json-editor.github.io/json-editor/)
* [YAML GUI](https://duckduckgo.com/?q=yaml+gui)

**Update: (Thu 2014-07-31 18:31:11)**

A github repository has been created to further track this closed SO post.

* https://github.com/dreftymac/stackoverflow.questions.998832



GUI-based or Web-based JSON editor that works like property explorer

I am using Eclipse for Java programming but lines in the editor look too close together.

I want to change the amount spacing/gap between lines. Is there an option in Eclipse that I can use to do this?

How can I change line height / line spacing in Eclipse?

I have a text string that starts with a number of spaces, varying between 2 &amp; 4.

What is the simplest way to remove the leading whitespace? (ie. remove everything before a certain character?)


    &quot;  Example&quot;   -&gt; &quot;Example&quot;
    &quot;  Example  &quot; -&gt; &quot;Example  &quot;
    &quot;    Example&quot; -&gt; &quot;Example&quot;

How do I remove leading whitespace in Python?

I have a strange bug in the Visual Studio text editor.
All my blank spaces are replaced by a &quot;.&quot;

    public class Person
    {
      int age;
    }

looks like this

    public..class..Person..........................
    {..................
    ..int age;...................
    }.....................

I reset the settings to default. Didn&#39;t work.
I also re-installed VS2008. Still didn&#39;t work.
What&#39;s the error?

Why does the Visual Studio editor show dots in blank spaces?

The question has two parts, one of which I already have the answer for.

1. How to auto-remove trailing whitespace **from the entire file being edited**? -&gt; Answer: use the [AnyEdit plugin][1], which can be set to do that on any save to the file.
2. How to auto-remove trailing whitespace **only from the lines I changed**? -&gt; This I don&#39;t know and would appreciate any help.

  [1]: http://andrei.gmxhome.de/anyedit/

How to auto-remove trailing whitespace in Eclipse?

Is there a Python function that will trim whitespace (spaces and tabs) from a string?

```
&quot;  \t example string\t  &quot;   →   &quot;example string&quot;

How do I trim whitespace?

Using the following code:

    char *name = malloc(sizeof(char) + 256); 

	printf(&quot;What is your name? &quot;);
	scanf(&quot;%s&quot;, name);
	
	printf(&quot;Hello %s. Nice to meet you.\n&quot;, name);

A user can enter their name but when they enter a name with a space like `Lucas Aardvark`, `scanf()` just cuts off everything after `Lucas`. How do I make `scanf()` allow spaces

Content Type	Original Author	Original Content on Stackoverflow
Question	Steve	View Question on Stackoverflow
Solution 1 - Xcode	gregschlom	View Answer on Stackoverflow
Solution 2 - Xcode	Duncan C	View Answer on Stackoverflow
Solution 3 - Xcode	Jason Jarrett	View Answer on Stackoverflow
Solution 4 - Xcode	dab0bby	View Answer on Stackoverflow
Solution 5 - Xcode	Mojtaba Hosseini	View Answer on Stackoverflow
Solution 6 - Xcode	Pablo Santa Cruz	View Answer on Stackoverflow
Solution 7 - Xcode	lukas_o	View Answer on Stackoverflow

Is there a way to make whitespace visible in the Xcode editor?

Xcode Problem Overview

Xcode Solutions

Solution 1 - Xcode

Solution 2 - Xcode

Edit

Solution 3 - Xcode

GUI

CLI

Turn it on

Turn it off

Solution 4 - Xcode

Solution 5 - Xcode

A note about the macOS 

Solution 6 - Xcode

Solution 7 - Xcode

SQL Server query to find all current database names

Is there a migration tool from CVS to Git?

Attributions