`&lt;C-r&gt;=`, or &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;R&lt;/kbd&gt;&lt;kbd&gt;=&lt;/kbd&gt; is used to insert the result of an expression at the cursor.

I use it a lot when editing CSS to insert values:

    width: &lt;C-r&gt;=147-33&lt;CR&gt;px;
    width: 114px;

***EDIT***

`&lt;C-r&gt;`, without `=`, allows you to insert the content of any register at the cursor while staying in *insert* mode: `&lt;C-r&gt;+`, for example, inserts the content of my system clipboard.  see `:help i_ctrl_r`.

`=` is the &quot;expression register&quot;. See `:help &quot;=`.

***ENDEDIT***

`&lt;C-r&gt;` is like doing CTRL+R on the keyboard. `&lt;CR&gt;` is like hitting enter. You can find the full list by doing `:help key-notation`.

I am trying to create a multilayout main screen application. I have some buttons at the top that link to the main section of the application (e.g. management window for each entity in the Model)

Clicking any of these button displays the associated UserControl in a Panel. The Panel holds the UserControls that in turn holds the UI.

The WinForms UserControl does not have the `Anchor` or `Dock` property. 

I have tried setting property of UserControl  

    AutoSize=True

And

    private void ManageUsersControl_Load(object sender, EventArgs e)
    {
            this.Width = this.Parent.Width;
            this.Height = this.Parent.Height;
    }

But these did not work.  
Note: I load this control dynamically at runtime


How to make WinForms UserControl fill the size of its container

I have a `OnItemSelectedListener` for my `Spinner`, but it is not called when the selected item is the same as the previous one. Apparently the `OnClickListener` is not an option for a `Spinner`.
I need to catch everytime a user click on an item. Any idea?

Maybe the fact that this `Spinner` is inside the `ActionBar` disturbs normal behavior?

    @Override
	public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
		inflater.inflate(R.menu.tracklist_menu, menu);
		Spinner spinner = (Spinner) menu.findItem(R.id.option_ordering_spinner)
				.getActionView();
		spinner.setAdapter(mSpinnerAdapter);
		spinner.setSelection(PrefsHelper.getOrderingSpinnerPos(prefs));
		spinner.setOnItemSelectedListener(new OnItemSelectedListener() {

			@Override
			public void onItemSelected(AdapterView&lt;?&gt; parent, View view,
					int position, long id) {
				String str = &quot;selected&quot;;
				System.out.println(str);
				if (optionMenuInitialized) {

					switch (position) {
					case 0:
						// rdm
						getActivity()
								.sendBroadcast(
										new Intent(
												MyIntentAction.DO_RESHUFFLE_PLAYLIST));
						smp.setCurrentTracklistCursorPos(-1);
						trackAdapter.notifyDataSetChanged();
						break;
					case 1:
						// artist
						getActivity()
								.sendBroadcast(
										new Intent(
												MyIntentAction.DO_ORDER_PLAYLIST_BY_ARTIST));
						smp.setCurrentTracklistCursorPos(-1);
						trackAdapter.notifyDataSetChanged();
						break;
					case 2:
						// folder
						getActivity()
								.sendBroadcast(
										new Intent(
												MyIntentAction.DO_ORDER_PLAYLIST_BY_FOLDER));
						smp.setCurrentTracklistCursorPos(-1);
						trackAdapter.notifyDataSetChanged();
						break;
					}
					PrefsHelper.setOrderingSpinnerPos(prefEditor, position);
					prefEditor.commit();
				}
				optionMenuInitialized = true;
			}

			@Override
			public void onNothingSelected(AdapterView&lt;?&gt; parent) {
			}
		});
	}

Spinner : onItemSelected not called when selected item remains the same

I came across a number of this syntax usages which I don&#39;t understand:

The first is in :help mapping:

    :map &lt;F2&gt; a&lt;C-R&gt;=strftime(&quot;%c&quot;)&lt;CR&gt;&lt;Esc&gt;

This sequence really does insert the value of strftime into buffer though I don&#39;t understand how. Changing &lt;C-R&gt; onto something different breaks it.

Another one is at wiki [page][1] which describes how to make omnicompletion popup menu work well: 

    inoremap &lt;silent&gt; &lt;Esc&gt; &lt;C-r&gt;=pumvisible() ? &quot;\&lt;C-y&gt;&quot; : &quot;\&lt;Esc&gt;&quot;&lt;CR&gt;

The same thing here.

Can anybody explain how this &quot;`&lt;C-r&gt;=`&quot; thing works?...


  [1]: http://vim.wikia.com/wiki/Improve_completion_popup_menu

What does &lt;c-r&gt;= means in Vim

I came across a number of this syntax usages which I don't understand:
The first is in :help mapping:
<pre><code class="hljs language-php-template">:map &#x3C;F2> a&#x3C;C-R>=strftime("%c")&#x3C;CR>&#x3C;Esc>
</code></pre>
This sequence really does insert the value of strftime into buffer though I don't understand how. Changing <c-r> onto something different breaks it.</c-r>
Another one is at wiki <a href="http://vim.wikia.com/wiki/Improve_completion_popup_menu" target="_blank" rel="noopener noreferrer">page</a> which describes how to make omnicompletion popup menu work well:
<pre><code class="hljs language-php-template">inoremap &#x3C;silent> &#x3C;Esc> &#x3C;C-r>=pumvisible() ? "\&#x3C;C-y>" : "\&#x3C;Esc>"&#x3C;CR>
</code></pre>
The same thing here.
Can anybody explain how this "<code>&#x3C;C-r>=</code>" thing works?...

I have been using [Vim][1], and I would really like to save my settings. The problem I am having is that I cannot find my .vimrc file, and it is not in the standard `/home/user/.vimrc` location. How might I find this file?

  [1]: http://en.wikipedia.org/wiki/Vim_%28text_editor%29



Where is my .vimrc file?

I&#39;m using Vim in a terminal on my MacBook Air with OS X Lion, and I can&#39;t seem to find a good plugin for Markdown syntax highlighting. 

So far I&#39;ve tried the [plasticboy](https://github.com/plasticboy/vim-markdown/) plugin and [Tim Pope&#39;s plugin](https://github.com/tpope/vim-markdown). The plasticboy plugin worked OK but was causing white space at the end of lines to be highlighted, and I haven&#39;t figured out how to turn that off. (It&#39;s really annoying, because every time I hit `space` when I&#39;m writing it highlights the character.)

Tim&#39;s plugin didn&#39;t seem to do very much in the way of highlighting, other than maybe headers that use `###`. Code blocks and bullets are ignored. I might be missing something there. I do use the `.md` extension on my Markdown files, so it should be picking up the filetype.

I&#39;ve also seen a reference to Vim 7.3 having Markdown support built in, but without one of those two plugins I don&#39;t get any highlighting at all.

Do either of these require specific color schemes to work?

Enabling markdown highlighting in Vim

Say I open a file in vim. I start on line 1 column 1 and hold down &lt;kbd&gt;j&lt;/kbd&gt; until I am on line 14. Pressing &lt;kbd&gt;:&lt;/kbd&gt;&lt;kbd&gt;7&lt;/kbd&gt;&lt;kbd&gt;CR&lt;/kbd&gt; puts me on line 7. I press &lt;kbd&gt;y&lt;/kbd&gt;&lt;kbd&gt;y&lt;/kbd&gt; to &quot;yank&quot;.

How do I return to line 14? Using &lt;kbd&gt;CTRL&lt;/kbd&gt; + &lt;kbd&gt;o&lt;/kbd&gt; takes me back to the top of the file. &lt;kbd&gt;\`&lt;/kbd&gt; &lt;kbd&gt;`&lt;/kbd&gt; gives me the same results.


Vim - Go to previous location

Using Git, my editor for commits is Vim. I&#39;m constantly doing a poor job of remembering to wrap lines and so I get long lines (see [this answer][1] for example).  Is there a way using some `git config` or `.vimrc` magic that I can get Vim to automatically wrap lines at 72 columns? 

[Related question.][2]


  [1]: https://stackoverflow.com/a/2120040/748858
  [2]: https://stackoverflow.com/questions/1874030/wrap-long-lines-in-vim

Automatically wrap long Git commit messages in Vim

Example: copy in one tmux pane (via vim), then switch to another pane (running another vim instance) and paste using the vim paste command. I know this can be done via tmux (using prefix+]) but it would be really handy if I can copy and paste using vim bindings since i&#39;m just switching between different panes running vim.


Any ideas?

Content Type	Original Author	Original Content on Stackoverflow
Question	lithuak	View Question on Stackoverflow
Solution 1 - Vim	romainl	View Answer on Stackoverflow
Solution 2 - Vim	Iain	View Answer on Stackoverflow

What does <c-r>= means in Vim

Vim Problem Overview

Vim Solutions

Solution 1 - Vim

Solution 2 - Vim

Spinner : onItemSelected not called when selected item remains the same

How to make WinForms UserControl fill the size of its container

Attributions